WO2014042295A1

WO2014042295A1 - Led lighting apparatus

Info

Publication number: WO2014042295A1
Application number: PCT/KR2012/007346
Authority: WO
Inventors: 김덕용
Original assignee: 주식회사 케이엠더블유
Priority date: 2012-09-13
Filing date: 2012-09-13
Publication date: 2014-03-20

Abstract

The present invention relates to an LED lighting apparatus, comprising: an LED lighting module including a substrate on which a plurality of LEDs are mounted; a substrate support unit for supporting and fixing the substrate and having a support surface which is not parallel to the ground; a reflection unit extending from the top of the support surface of the substrate support unit in order to reflect light from the LEDs and form a light distribution pattern such that the light may not be distributed to the back side of the substrate support unit; and a plurality of heat-dissipating fins arranged on the outside of the substrate support unit and the reflection unit so as to dissipate heat from the LEDs. The LED lighting apparatus of the present invention is configured such that the light-emitting surfaces of the LEDs may not face the ground, the light emitted by the LEDs is reflected so as to form a light distribution pattern, and the light may not be distributed to the back side of the surface on which the LEDs are mounted. The apparatus of the present invention prevents light distribution in one direction by means of a simple structure, thus satisfying the specifications for a streetlight or tunnel lighting.

Description

LED lighting

The present invention relates to an LED lighting apparatus, and more particularly, to an LED lighting apparatus capable of arbitrary light distribution while preventing glare, such as a tunnel lamp or a street lamp.

In general, the lighting installed in the tunnel should be installed so as not to cause glare to the driver of the driving vehicle to prevent the occurrence of traffic accidents.

In addition, ideally, the street lamp should be illuminated only on the road surface, and the requirement to minimize the lighting on the rice fields or fields around the road so as not to disturb the growth of the crops is satisfied.

Existing lamp-type street lamps and tunnel lamps consume a lot of power and have a short lifespan, so they need to be replaced frequently. When replacing the tunnel lamps, it is necessary to block some lanes in the tunnel and perform replacement work. There was a problem that could cause an accident.

In order to solve the problem of the conventional lamp-type lamp, the development of a lamp using a low power consumption and a relatively long life is being developed.

Patent Publication No. 2003-0044324 discloses a tunnel lamp using the LED. More specifically, a tunnel lamp capable of preventing an operator's glare by installing an LED substrate horizontally on a road and using a bent L-shaped housing is described.

However, conventional LED lamps, including the Patent Publication No. 2003-0044324, because the light emitting surface of the LED is installed toward the road surface so as to be parallel to the road surface to have a light distribution pattern corresponding to the LED's unique light irradiation angle. do.

Although there is a difference in light distribution patterns of general street lamps and tunnel lamps, there is a problem in that it is very difficult to form a light distribution pattern arbitrarily. In order to solve such a problem, a lens converting to a specific light distribution pattern is used.

The lens not only increases the price of the LED lamp but also causes light loss to lower the illuminance. Since the illuminance to be provided on the road surface is lowered, more LEDs should be used to match the road surface illumination when the lens is used, which leads to an increase in the manufacturing cost of the lamp and an increase in power consumption. There was a problem of deterioration.

An object of the present invention for solving the above problems is to provide an illumination device capable of arbitrary light distribution without using a lens in the illumination using the LED.

In addition, another object of the present invention, the LED is not possible to irradiate light in one direction without using a complex housing structure, the arbitrary light distribution LED that can prevent the driver of the vehicle approaching from one direction to feel glare In providing an illumination device.

The present invention for achieving the above object is a substrate support portion having a plurality of LEDs mounted, the substrate supporting portion having a support surface that is not parallel to the ground, and the upper surface of the support surface of the substrate support portion Extending from to reflect the light of the LED to form a light distribution pattern, but a rear surface of the substrate supporting portion to prevent the light distribution, and a plurality of provided on the outside of the substrate support and the reflecting portion to emit heat of the LED The LED lighting module includes a heat dissipation fin.

The LED lighting apparatus of the present invention is arranged so that the light emitting surface of the LED does not face the ground, and reflects the emitted light of the LED to form a light distribution pattern, so that the light is not distributed behind the installation surface of the LED. By using the structure, the light distribution is blocked in one direction, so that it can meet the specifications of the street lamp or tunnel lamp.

In addition, the LED lighting apparatus of the present invention, by adjusting the degree of reflection of the light emitted from the LED to variously adjust the shape of the light distribution pattern, by providing a variety of light distribution patterns without using a lens, to prevent the occurrence of attenuation of the illumination As a result, manufacturing costs can be reduced.

1 is a cross-sectional view of an LED lighting apparatus according to a preferred embodiment of the present invention.

Figure 2 is a bottom side perspective view of the LED lighting apparatus according to a preferred embodiment of the present invention.

3 is a cross-sectional view of the LED lighting apparatus according to another embodiment of the present invention.

4 is a block diagram of an LED lighting apparatus according to another embodiment of the present invention.

5 is a state diagram in which the LED lighting apparatus according to another embodiment of the present invention shown in FIG. 4 is applied to a tunnel.

* Description of the sign *

10: Substrate 11: LED

20: substrate support part 30: reflecting part

31: curved portion 32: the first reflecting portion

33: second reflecting portion 40: heat radiation fin

1: LED lighting module 2: Frame

3: power supply 4: beacon

5: Installation pipe 6: Road surface

70: side lighting module 71: body frame

72: home 73: substrate

74: heat dissipation pin 75: lens

Hereinafter, the configuration and operation of the LED lighting apparatus according to a preferred embodiment of the present invention in more detail.

1 is a cross-sectional view of an LED lighting apparatus according to a preferred embodiment of the present invention, Figure 2 is a bottom perspective view of FIG.

1 and 2, the LED lighting apparatus according to the preferred embodiment of the present invention, the substrate 10 for mounting a plurality of LED 11, and can be fixed to support the substrate 10, A substrate support 20 that provides a support surface that is not parallel to the ground, and is connected to an upper side of the support surface of the substrate support 20 to reflect the light of the LED 11, and the substrate support 20 The light distribution pattern is formed by the angle of inclination of the light source, but the reflector 30 which does not reflect light behind the substrate support part 20 and the reflector 30 and the outer side of the substrate support part 20 It is configured to include a plurality of heat dissipation fins 40 for dissipating heat generated by the LED (11).

Hereinafter, the configuration and operation of the LED lighting apparatus according to a preferred embodiment of the present invention configured as described above in more detail.

First, the substrate support 20 is a plate-shaped frame that provides a vertical or inclined support surface having an inclination angle θ1 of 10 to 90 degrees with respect to the ground, and a plurality of LEDs 11 are mounted on the substrate support 20. The board | substrate 10 is provided.

Therefore, the LED 11 is not disposed in the light emitting surface toward the ground as in the prior art, the light emitting surface is inclined at the same angle as the inclination of the support surface of the substrate support 20.

As such, the light emission of the LED 11 is not directed toward the ground, whereby a wider light distribution pattern can be formed. Such a light distribution pattern is formed through the reflector 30 coupled to the upper end side of the installation surface of the substrate 10 of the substrate support 20.

At this time, the inclination angle θ2 between the reflector 30 and the substrate support 20 is in the range of 90 to 160 degrees. In particular, the lower end of the reflector 30 and the substrate support 20 is the same height from the ground. The lower end of the reflector 30 is positioned higher than the lower end of the substrate support 20.

The condition of the inclination angle θ1 of the substrate support portion 20 with respect to the ground and the inclination angle θ2 between the reflection portion 30 and the substrate support portion 20 is a reflector 30 whose lower ends are located at the same height. ) And the substrate support 20 to prevent the light reflected from the reflector 30 from being distributed behind the substrate support 20.

As shown in FIG. 1, when the reflector 30 has a planar reflecting surface, a connection portion between the reflector 30 and the substrate support 20 is formed in order to prevent light distribution behind the substrate support 20. It is preferable that the curved portion 31 is provided.

When the flat reflector 30 and the substrate support 20 are in contact with each other without using the curved portion 31, the light reflected from the connection portion may be distributed to the rear side of the substrate support 20.

Both the reflector 30 and the substrate support 20 may be made of a metal such as aluminum having excellent thermal conductivity. For convenience of description, the reflector 30 and the substrate support 20 are respectively divided into separate configurations. It is easier to manufacture with an integrated structure.

The light distribution pattern may be determined according to the inclination angle θ2 of the substrate support 20 and the reflector 30 when the angle of the substrate support 20 is determined. For example, when the substrate support surface of the substrate support 20 is perpendicular to the ground, that is, when θ1 is 30 degrees, the inclination angle θ2 between the reflector 30 and the substrate support 20 is 90 degrees. It can be adjusted in the range of 160 degrees, the larger the value of θ2 is made a light distribution pattern in which the light emitting surface of the LED 11 is completely exposed to the side. In this case, the larger the angle of θ2, the more light is distributed to the farther distance from the LED 11, and when θ2 is 90 degrees, the light distribution pattern is irradiated with light to the shortest distance.

Therefore, according to the present invention, the LED lighting apparatuses having different light distribution patterns can be manufactured according to the purpose of using the lamps by appropriately adjusting θ1 and θ2.

As described above, both the reflector 30 and the substrate support 20 are made of metal which is easy to conduct heat, and a plurality of heat dissipation fins 40 are provided outside the reflector 30 and the substrate support 20. The heat generated by the LED 11 can be easily released.

The heat dissipation fins 40 are provided at predetermined intervals along the width direction w of the reflector 30 and the substrate support 20, and the longitudinal direction l of the reflector 30 and the substrate support 20. As shown in FIG. 1, which is a cross-sectional view of FIG. 1, a surface continuously connected to the reflector 30 and the substrate support 20 is formed. The shape of the heat dissipation fin 40 of such a structure also serves to reinforce the rigidity of the plate-like substrate support 20 and the reflector 30 having a bent structure.

Referring to FIG. 3, the lighting apparatus according to another embodiment of the present invention is characterized in that the reflecting surface of the reflector 30 is curved.

The reflector 30 having the curved reflective surface is in the inclination angle θ2 with the substrate support 20 in the angle range of 90 to 160 degrees as in the above-described example, and has a reflective surface having the curved reflective surface. The lower end of the 30 is at the same level as the lower end of the substrate support 20 or at a higher position.

When the reflector 30 extends closer to the ground than the substrate support 20, the light reflected from the extended portion is reflected to the back of the substrate support 20, which is behind the substrate support 20. Since the glare is caused to the driver of the vehicle moving toward the substrate support 20, the lower end of the reflector 30 is flush with the lower end of the substrate support 20.

The lower end of the reflector 30 may be located at a higher position than the lower end of the substrate support 20, but it may not be easy to set a suitable light distribution pattern.

In the above-described example, the light distribution pattern can be adjusted by adjusting θ1 and θ2. When the reflective surface of the reflector 30 is a curved surface, the curvature of the reflective surface is controlled by adjusting the θ1 and θ2. The light distribution pattern can be adjusted in more various forms.

When the reflector 30 provides a curved reflective surface, the curved portion 31 is positioned between the substrate support 20, and the light reflected by the reflector 30 is transferred to the substrate support 20. It is possible to prevent the light distribution behind.

The reflector 30 may be mirror-processed or attached to a reflective sheet to minimize the loss of light, and may further reduce the loss of light by using a light distribution pattern without using a lens.

By minimizing the light loss, it is possible to reduce the power consumption under the conditions of providing road lighting of the same illuminance.

At the bottom of the reflector 30 and the substrate support 20, a transparent cover 50 is provided to block the inflow of moisture.

Figure 4 is a cross-sectional view of the LED lighting apparatus according to another embodiment of the present invention.

Referring to FIG. 4, the LED lighting apparatus according to another embodiment of the present invention has a shape in which a part of the reflector 30 is bent in the configuration of the embodiment described with reference to FIG. 1, and the reflector 30 is a substrate. The first reflection part 32 adjacent to the support part 20 and the 2nd reflection part 33 bent from the 1st reflection part 32 are comprised.

The substrate 10 is attached to a part of the upper side of the substrate support 20, and has a structure in which the substrate 10 is not provided on the lower side of the substrate support 20.

The angle θ1 formed by the substrate support 20 and the ground, the angle θ2 formed by the substrate support 20 and the first reflecting portion 32, and the angle formed by the first reflecting portion 32 and the second reflecting portion 33. The light distribution pattern of the LED lighting apparatus shown in FIG. 4 is determined by adjusting θ3.

Preferably, θ1 may be adjusted in a range of 10 to 90 degrees, θ2 of 90 to 160 degrees, and θ3 of 110 to 179 degrees. As another condition for this, as the value of θ1 increases, the value of θ2 preferably decreases in inverse proportion.

In addition, between the first reflecting portion 32 and the second reflecting portion 33 is preferably bent in a curved surface.

When the angle between the first reflecting portion 32 and the second reflecting portion 33 is less than 110 degrees, the reflected light reflected from the second reflecting portion 33 is distributed to the rear of the substrate support portion 20 depending on the conditions. If it is greater than 179 degrees and becomes 180 degrees, it is difficult to see a bent structure, and if it exceeds 180 degrees, it may not be able to serve as a reflector depending on conditions.

As described above, the present invention can variously change the reflector into a plane, a curved surface, or a combination of a plane and a curved surface and a curved plane to form a light distribution pattern that meets the purpose of the lighting apparatus.

5 is another embodiment of the LED lighting apparatus according to the present invention.

Referring to Figure 5 another embodiment of the LED lighting apparatus according to the present invention, the substrate 10, the substrate support 20, the reflector 30, the heat radiation fin 40 and the transparent cover 50 described in detail above Using an LED lighting device including as a lighting module (1), by connecting a plurality of the lighting module (1) has been shown an example that can match the illuminance required for the road.

In FIG. 5, a frame 2 connected by connecting four LED lighting modules 1 continuously and a power supply unit 3 fixed to the frame 2 to supply power to the LED lighting modules 1 are provided. ) And an example including a warning lamp 4 provided at one end of the frame 2, the structure capable of connecting a plurality of the LED lighting modules 1 can be applied in various ways. Self-explanatory

6 is a state diagram in which the LED lighting apparatus of the embodiment shown in FIG. 5 is applied to a tunnel.

Referring to FIG. 6, the frame 2 connecting the LED lighting modules 1 is supported by an installation tube 5 extending from an upper part of the tunnel, and the power supply unit is installed inside the installation tube 5. 3) a power line (not shown) for supplying external power may be inserted.

The light distribution of the LED lighting modules 1 is not distributed to the entrance direction side of the vehicle, which is the left side of the drawing, and illuminates the road surface 6 in a long light distribution pattern along the driving direction of the vehicle.

In addition, the LED lighting module 1 may be to emit light of a different color, respectively. Normally, the interior of the tunnel is provided with daylight lighting or warm white lighting, a bright orange system.

The warm white is known to have better transmittance than daylight color (white) in a situation where a lot of dust is floating or misted in the tunnel.

Accordingly, some of the LED lighting modules 1 may provide white light, and others may provide warm white light.

In addition, the light distribution pattern is in contact with the light distribution pattern of the other LED lighting device located adjacent to the driving direction side of the vehicle it is possible to provide uniform illumination throughout the road surface (6).

The lighting of each LED lighting module 1 can be controlled from the outside, and in case of an emergency situation such as a traffic accident inside the tunnel, the warning lamp 4 flashes to enter the tunnel and the vehicle inside the tunnel. By making it easy to recognize that an emergency has occurred, it is possible to prevent the occurrence of a secondary collision accident.

The frame 2 may be a pair of metal bars for fixing the left and right sides of each of the LED lighting module 1 and the left and right sides of the power supply unit 3, and provide a support for connecting the pair of metal bars, The beacon 4 may be added to the outside.

The beacon 4 has a color such as red, so that it can be distinguished from the illumination of the LED lighting module (1).

7 is a block diagram of the LED lighting apparatus capable of arbitrary light distribution according to another embodiment of the present invention.

Referring to FIG. 7, the LED lighting apparatus capable of arbitrary light distribution according to another embodiment of the present invention may include a side lighting module 70 coupled to an outer side of one side of the frame 2 in the technical configuration described with reference to FIG. 6. It is configured to include more.

The side lighting module 70 is to illuminate the wall side of the tunnel when the LED lighting device capable of arbitrary light distribution according to the present invention is used as a tunnel, the side of the tunnel to prevent the vehicle from colliding with the side of the tunnel. To brighten the sides.

8 is a diagram illustrating an embodiment of the side lighting module 70.

Referring to FIG. 8, the side lighting module includes a rod-shaped body frame 71 having an elongated groove 72 formed at a bottom thereof, and a light emitting surface of a plurality of mounted LEDs toward the opening of the groove. The substrate 73 coupled to the inner upper surface portion of the groove 72 of the frame 71, the plurality of heat radiation fins 74 which are spaced apart from each other by a predetermined distance from the upper surface and the side surface of the body frame 71, and the groove It is comprised in the lens 75 which is provided in the opening part of 72, and distributes the emitted light of the LED mounted in the said board | substrate 73. As shown in FIG.

The side lighting module having such a structure uses a rod-shaped body frame 71 so that light of the LED can be induced and emitted to the groove 72, and the lens 75 is disposed outside the groove 72. In addition, it is possible to have various light distribution patterns.

In addition, it is possible to reduce the weight by using the hollow body frame 71, and the heat dissipation fins 74 on the upper surface and the outer side of the body frame 71 is configured to facilitate heat dissipation.

As described above, the present invention can provide more various light distribution patterns by applying lighting modules capable of providing a light distribution pattern according to the purpose of use of the lighting device at various positions of the frame 2.

In addition, the side lighting module 70 is hinged to the frame (2) can be tilted at a predetermined angle, it can be installed by adjusting to the desired installation angle during installation.

It will be apparent to those skilled in the art that the present invention is not limited to the above embodiments and may be variously modified and modified without departing from the technical spirit of the present invention. will be.

Industrial Applicability The present invention has industrial applicability that a light distribution pattern for limiting LED emission light may be formed while using a simple structure to prevent glare of a driver when the vehicle is driven.

Claims

A substrate on which a plurality of LEDs are mounted;

A substrate support portion supporting and fixing the substrate and having a support surface that is not parallel to the ground;

A reflector extending from an upper end of the support surface of the substrate support to form a light distribution pattern by reflecting the light of the LED, but not to be distributed behind the substrate support; And

LED lighting device having an LED lighting module provided on the substrate support and the reflecting portion and including a plurality of heat radiation fins for dissipating heat of the LED.
The method of claim 1,

The lower end of the substrate support and the reflector is positioned at the same height or the lower end of the reflector is higher than the lower end of the LED support, characterized in that the LED lighting apparatus.
The method of claim 1,

LED substrate, characterized in that the substrate support and the reflecting unit is integral.
The method of claim 1,

The reflector,

LED lighting device, characterized in that for providing a reflective surface that is flat or curved, a combination of a flat and curved surface, or a curved plane.
The method according to any one of claims 1 to 4,

A frame in which a plurality of LED lighting modules are installed;

A power supply unit installed on the frame to supply power to the LED lighting module; And

LED lighting device further comprises a warning light provided on one side of the frame to flash when an emergency occurs.
The method of claim 5,

The LED lighting module has a long bar shape to one side,

The heat dissipation fin is integrated with the LED lighting module, LED lighting device, characterized in that provided with a plurality of extending in the width direction of the LED module.
The method of claim 5,

Each of the plurality of LED lighting module,

LED lighting device, characterized in that the LED is installed to emit different colors.
The method of claim 5,

On one side of the frame,

LED lighting device further comprises a side lighting module for distributing the light distribution pattern side of the LED lighting module.
The method of claim 8,

The side lighting module,

A rod-shaped body frame provided with a long groove on a bottom surface thereof;

A substrate coupled to an inner upper surface of the body frame such that the light emitting surfaces of the mounted LEDs face the openings of the grooves; And

LED lighting device including a plurality of heat dissipation fins spaced apart from each other by a predetermined distance on the upper surface and the side of the body frame.
The method of claim 9,

And a lens installed in the opening of the groove to adjust a light distribution pattern of the emission light of the LED mounted on the substrate.
The method of claim 8,

The side lighting module,

LED hinge device, characterized in that the hinge is coupled to the frame, the installation angle can be adjusted.