WO2010005155A1

WO2010005155A1 - Lighting apparatus using led

Info

Publication number: WO2010005155A1
Application number: PCT/KR2009/000586
Authority: WO
Inventors: 오성수; 김철호
Original assignee: 코스텍알 주식회사
Priority date: 2008-07-07
Filing date: 2009-02-06
Publication date: 2010-01-14

Abstract

The present invention relates to an LED lighting apparatus that is able to light up frontward and sideward. The LED lighting apparatus comprises: a front lighting unit including plural primary LEDs and a primary circuit substrate that supplies electric power and a control signal to the primary LEDs, wherein the primary LEDs emit a light frontward; a lateral lighting unit including plural secondary LEDs and a secondary circuit substrate that supplies electric power and a control signal to the secondary LEDs, wherein the secondary LEDs emit a light sideward; a lighting plate that is arranged to guide the light from the secondary LEDs of the lateral lighting unit toward the lateral sides of the LED lighting apparatus; and a cover unit that fixes the front lighting unit, the lateral lighting unit and the reflecting unit. Through the invention, a light can be emitted in not only the front direction but also the lateral direction of a lighting.

Description

Lighting fixture using light emitting diode

The present invention relates to a luminaire using an LED, and specifically, to compensate for the structural disadvantage that the periphery of a ceiling where an indoor lamp using an LED having a straightness is installed becomes very dark, lighting from the front as well as the side of the luminaire. The present invention relates to an LED luminaire that provides efficient lighting.

LED luminaires are luminaires that implement the functions of existing luminaires using LEDs. Recently, luminaires using LEDs are in the spotlight due to low power consumption and excellent durability, and various LED luminaires are being marketed to replace existing luminaires. Recently, with the research of component devices to solve the heat problem, which is a disadvantage of LED, lighting fixtures having various uses and structures using characteristics of small LED devices have been developed.

In particular, lighting lamps using LEDs are lighting fixtures that replace fluorescent lamps or incandescent lamps, and are installed in ceilings and walls for lighting and decoration of indoor spaces such as homes and offices.

However, due to the linearity of the light of the LED, the lamp using the LED emits light only to the front of the lamp, has a limit that the illumination area is very narrow. FIG. 6 is a diagram exemplarily illustrating a lighting area when a lighting lamp using a conventional LED is installed on a ceiling. As shown in FIG. 6, when installing a conventional lamp using a ceiling lamp, light is provided only to the front area 'a' of the lamp, and the remaining areas except for the front area 'a' of the lamp are It will darken. In particular, since the light is not emitted to the surrounding area of the lamp in the ceiling where the lamp is installed, there is a problem that becomes very dark. When installing a plurality of lamps having such a problem in the ceiling, even if the lighting area is wider, there is a problem that the areas located between each lamp in the ceiling is still dark.

SUMMARY OF THE INVENTION An object of the present invention for solving the above-mentioned problems is to provide an LED lighting device capable of illuminating not only the front side but also the side of the lamp, so as to illuminate the peripheral area of the ceiling where the lamp is installed.

Another object of the present invention is to provide a light to the blind spot of the light generated by the characteristics of the LED lighting fixtures, to provide an LED lighting fixture that can be used as an interior lighting fixture.

According to an aspect of the present invention, there is provided an LED lighting device comprising: a front lighting unit providing light to the front of the LED lighting device; A side lighting unit installed at a side of the front lighting unit to provide light to the side of the LED lighting fixture; A reflection plate installed at a side of the side lighting unit to allow the light emitted from the side lighting unit to travel along the side of the LED lighting fixture; And a cover unit fixing the front lighting unit, the side lighting unit, and the reflecting plate.

The front lighting unit is composed of a plurality of first LEDs and a first circuit board for supplying power and control signals to the first LEDs, and the first LEDs are disposed to emit light toward the front of the LED lighting fixture, The side lighting unit comprises a plurality of second LEDs and a second circuit board for supplying power and control signals to the second LEDs, the second LEDs being arranged to emit light to the side of the LED lighting fixture, Provide lighting to the side and side.

The LED lighting device having the above-mentioned feature further includes a condensing lens disposed in front of the second LEDs of the side lighting unit, and the condensing lens directs the light emitted from the second LEDs to the side of the LED lighting device. It is preferable to arrange | position so that a light may be collected.

In the LED lighting device having the above-mentioned characteristics, it is preferable that the cover part further includes a heat dissipation partition wall coupled to the front lighting part at a predetermined interval on a rear surface thereof.

In the LED lighting device having the above-mentioned characteristics, the cover portion is a rear cover portion fixed to the rear of the front lighting portion, the front cover portion fixed to the front of the front lighting portion and the direction in which the light of the second LED of the side lighting portion proceeds Consists of a side cover part installed in the front of the,

The reflective plate reflects the light emitted from the second LED of the side lighting unit and proceeds to the side surface, and is installed on the rear cover unit along the side surface of the front lighting unit, and fixes the side lighting unit and the front cover unit. A first reflector; And a second reflecting plate reflecting light emitted from the LED of the side lighting unit to proceed in the second direction, and a second reflecting plate installed to face the first reflecting plate, wherein the side cover part is configured in the shape of a convex lens. It is preferable to arrange | position between the said 1st reflecting plate and a 2nd reflecting plate.

As described above, the LED lighting fixture according to the present invention, by minimizing the blind spot of the light generated according to the installation location and the type of lighting fixture through the appropriate arrangement of the side lighting unit, it is possible to increase the efficiency of the lighting, the interior The breadth of application as a lighting fixture can also be increased.

In addition, as shown in FIG. 7, the LED lighting apparatus according to the present invention may provide lighting not only in the front direction ('a' direction) of the lamp, but also in the ceiling in the side direction ('b' direction) of the lamp. . In this case, it can be seen that the light is emitted not only in the ceiling direction but also in the downward direction by about 60 ° from the side.

In particular, as shown in FIG. 8, by further comprising a convex lens-shaped side cover portion in the side lighting portion of the LED lighting fixture, all light passing through the side cover portion according to the refraction principle of the light by the convex lens is directed in the ceiling direction. Only is investigated. That is, the LED lighting apparatus according to the present invention further includes a side cover portion and a reflecting plate, thereby preventing light from being distributed at a wide angle of the side of the LED lighting apparatus, so that the light can be provided only in the ceiling direction of the side surface.

As a result, the LED lamp according to the present invention can overcome the limitation that the conventional LED lamps can be illuminated only in the front direction of the lamp due to the straightness of the LED light. In addition, when the conventional LED lamp is installed on the ceiling, it is possible to solve the problem that the ceiling around the lamp becomes dark.

1 is a front view of the LED lighting device according to an embodiment of the present invention, Figure 2 shows a cross-sectional view according to A-A of FIG.

3 is a front view of the rear cover part according to an embodiment of the present invention.

4 is a front view of the first reflecting plate according to the exemplary embodiment of the present invention.

5 is a front view of the second reflector according to the exemplary embodiment of the present invention.

FIG. 6 is a view showing an illumination area of a conventional LED lamp, FIG. 7 is a view showing an illumination area of an LED luminaire (not using a condenser lens) according to an embodiment of the present invention, and FIG. According to an embodiment of the present invention is a view showing an illumination region of the LED lighting fixture using a condenser lens in the side lighting unit.

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

FIG. 1 is a front view of an LED lighting device according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line A-A of FIG.

The LED lighting device 1 according to the present embodiment includes a front lighting unit 10 in which a plurality of first LEDs 11 are mounted on a first circuit board, and the front lighting unit 10 at a rear surface of the front lighting unit 10. The rear cover part 20 fixed and housing, the front cover part 30 for diffusing and passing the light emitted from the plurality of first LEDs 11 in the front direction, and the light in the lateral direction of the front lighting part 10. The second LED 41 emitting the light reflects the light emitted from the side lighting unit 40 mounted on the second circuit board and the second LED 41 of the side lighting unit 40 to the front lighting unit 10. A first reflecting plate 50 and a second reflecting plate 60 for advancing in the lateral direction are provided, and a side cover part 70 provided between the first reflecting plate 50 and the second reflecting plate 60. The LED lighting device 1 according to the present embodiment having the above-described configuration is used as a main illumination source by irradiating the light emitted from the plurality of first LEDs 11 installed on the first substrate 12 in the front direction. , And irradiates the light emitted from the second LED 41 installed in the side lighting unit 40 in the lateral direction to use as an auxiliary lighting source.

Hereinafter, each configuration of the LED lighting device 1 according to the present embodiment will be described.

First, the front lighting unit 10 will be described with reference to FIGS. 1 and 2. As shown in FIGS. 1 and 2, the front lighting unit 10 includes a plurality of first LEDs 11 and a first circuit board 12 that provides power and control signals to the first LEDs. The plurality of first LEDs are mounted on the front surface of the first circuit board 12. The heat dissipation plate 13 is attached to the rear surface of the first circuit board 12 to discharge heat generated from the first circuit board 12. Here, the first circuit board 12 preferably uses a metal PCB substrate having good heat generation performance.

Next, the rear cover unit 20 will be described with reference to FIG. 3. 3 is a front view of the rear cover part 20 according to an embodiment of the present invention. The rear cover unit 20 performs a function of fixing and housing the front lighting unit 10 at the rear of the front lighting unit 10. In addition, the inside of the rear cover part 20 is formed with a heat dissipation partition 21 is disposed at a position spaced apart from the rear of the front lighting unit 10, the heat dissipation partition is coupled to the side of the front light unit (10). do. The heat dissipation partition 21 is in thermal contact with the heat dissipation plate 13 by a coupling member such as a bolt, thereby transferring heat generated from the heat dissipation plate 13 to the heat dissipation partition 21. As a result, the heat dissipation partition 21 contributes to more effectively dissipating heat generated from the heat dissipation plate 13.

Here, the heat dissipation partition 21, as shown in Figure 3, the rectangular ventilation hole 22 is formed radially, the coupling groove 23 for coupling the front lighting unit 10 to the coupling member such as a bolt 23 ) And a large number. The coupling groove 23 is provided with eight. The shape and number of the ventilation holes 22 and the coupling groove 23 may be arbitrarily provided as necessary to improve the performance of the lighting.

In addition, the rear cover part 20 includes a first fixing groove 24 for fixing the first reflecting plate 50 to be described later and a second fixing groove 25 for fixing the second reflecting plate 60 to be described later. do.

Next, the front cover part 30 will be described with reference to FIGS. 1 and 2.

The front cover part 30 serves to diffuse and pass the light emitted by the first LEDs 11 of the front lighting unit 10 toward the front side of the lighting fixture. The front cover part 30 mainly uses a light diffusion plate (LDP), and diffuses a point light source emitted from the first LED 11 along a surface so that the overall color and brightness are uniformly seen. It is a translucent part. If the surface light source is used as the light source, a light diffusion plate such as the front cover part 30 may not be used.

Next, with reference to FIGS. 1 and 2, the side lighting unit 40 will be described.

The side lighting unit 40 is composed of a plurality of second LEDs and a second circuit board that provides power and control signals to the second LEDs, and is installed on the side of the front lighting unit to light in the side direction of the front lighting unit. Will be provided. Side lighting unit 40 having the above-described configuration is a key component for achieving the object of the present invention, unlike the front lighting unit 10 used as the main lighting source performs a function as an auxiliary lighting source.

For example, when the LED luminaire 1 according to an embodiment of the present invention is used as a ceiling lamp, the light emitted from the first LED 11 of the front lighting unit 10 is irradiated from the top to the bottom It will play the role of the circle. In this case, the light irradiated from the second LED 41 of the side lighting unit 40 serves as an auxiliary illumination source irradiated in a direction parallel to the ceiling where the LED lighting device 1 is installed. The light irradiated in parallel with the ceiling illuminates the ceiling, thereby improving the illuminance of the ceiling. Accordingly, the LED lighting device 1 according to the present embodiment can reduce the blind spot of the light generated on the side when only the front lighting unit 10 described above is used, and can be utilized as an aesthetic interior lighting device for the ceiling.

Side lighting unit 40 is installed along the side of the front lighting unit 10, as shown in Figure 1, so that light is emitted in the lateral direction of the front lighting unit 10 described above, a plurality of side lighting units 40 Each rear side is installed in a polygonal shape inscribed to the outer peripheral surface of the front lighting unit (10).

As shown in FIG. 2, the front lighting unit 10 has an outer circumferential shape in a circle shape, and the shape formed by the side lighting units 40 is in the form of a regular pentagon. Therefore, the number of side lighting units 40 is ten. Thereby, light by an auxiliary illumination source is irradiated from ten side surfaces.

The side lighting unit 40 further includes a heat sink 43 and a condenser lens (not shown). The heat dissipation plate of the side lighting unit has the same structure and function as the heat dissipation plate of the front lighting unit. The condensing lens of the side lighting unit 40 is preferably disposed in front of the second LED 41 so that the light emitted from the second LED 41 is condensed in the lateral direction of the LED lighting fixture. Can be used.

Next, the first reflecting plate 50 and the second reflecting plate 60 will be described with reference to FIGS. 4 and 5. 4 and 5 are views of the first reflecting plate 50 and the second reflecting plate 60 according to the embodiment of the present invention as viewed from the front.

The first reflecting plate 50 and the second reflecting plate 60 shown in FIG. 4 reflect light emitted from the second LED 41 of the side lighting unit 40 to travel along the side direction of the front lighting unit 10. It performs the function.

The first reflecting plate 50 has an edge of the inner circumferential surface of the first reflecting plate 50 along the outer circumferential surface of the front lighting unit 10, and has a rib 51 for fixing the side lighting unit 40. In addition, the first reflecting plate 50 includes a plurality of protruding pieces 51 formed along the inner circumferential surface of the first reflecting plate 50 to fix the front cover part 30. The protruding piece 51 is formed in the form of a '凹' with a groove formed in the center, and is formed to protrude in the direction of the front cover part 30, and two places of the end surface of the '凹' shape are formed on the front cover part ( 30).

In addition, a first fixing hole 53 and a second fixing hole 54 are formed in the first reflecting plate 50. The first reflecting plate 50 is bolted to the first fixing groove 24 of the rear cover part 20 through the first fixing hole 53. The second fixing hole 54 serves to pass the second fixing groove 25 of the rear cover part 20 to the third fixing hole 61 of the second reflecting plate 60.

The inner surface of the first reflecting plate 50 in contact with the front lighting unit 10 is coated with chromium or nickel to increase the reflectance.

The second reflecting plate 60 shown in FIG. 5 is in contact with the outer circumferential surfaces of the side lighting unit 40 and the front cover unit 30 described above, and is coupled to the first reflecting plate 50 to the side lighting unit 40 and the front cover. It is provided to face the first reflecting plate 50 to fix the portion 30.

In addition, the second reflecting plate 60 forms a third fixing hole 61. The second reflecting plate 60 is fixed to the second fixing groove 25 of the rear cover part 20 with a bolt through the third fixing hole 61. In addition, the inner surface of the second reflecting plate 60 in contact with the side lighting part is coated with chromium or nickel to increase the reflectance.

With reference to FIG. 2, the side cover part 70 is demonstrated.

The side cover part 70 is disposed in front of the side lighting part and is installed between the outer circumferential surfaces along the outer circumferential surfaces of the first reflecting plate 50 and the second reflecting plate 60. The side cover part 70 is embodied in the shape of a convex lens so that the light shining downward from the central axis of the side cover part is refracted in the ceiling direction. As shown in FIG. 8, in the LED lighting device according to the present invention, all of the light irradiated by the side lighting part by the side cover part 70 proceeds only to the side.

In addition, the side cover part 70 may use the same light diffusion plate as the material of the front cover part 30.

Thus, according to the LED lighting device 1 according to the present embodiment, not only the lighting effect by the main lighting source emitted from the front lighting unit 10 in the front direction but also the auxiliary lighting source emitted from the side lighting unit 40 in the lateral direction. By this, the main lighting source enables the illumination of the side area which was the blind spot of illumination, and various applications as an aesthetic interior lighting fixture are possible.

LED lighting fixture according to the present invention can be mainly used as a lighting fixture, an interior lighting fixture and a ceiling inside the building.

Claims

In the LED lighting fixture,

A front lighting unit providing light to the front of the LED lighting fixture;

A side lighting unit installed at a side of the front lighting unit to provide light to the side of the LED lighting fixture;

A reflection plate installed at a side of the side lighting unit to allow the light emitted from the side lighting unit to travel along the side of the LED lighting fixture;

A cover unit fixing the front lighting unit, the side lighting unit and the reflecting plate;

And

The front lighting unit is composed of a plurality of first LEDs and a first circuit board for supplying power and control signals to the first LEDs, and the first LEDs are disposed to emit light toward the front of the LED lighting fixture,

The side lighting unit is composed of a plurality of second LEDs and a second circuit board for supplying power and control signals to the second LEDs, the second LEDs being arranged to emit light to the side of the LED luminaire,

LED lighting fixture, characterized in that it provides illumination in front and side.
The LED lighting apparatus of claim 1, wherein the LED lighting apparatus further comprises a condensing lens disposed in front of the second LEDs of the side lighting unit, and the condensing lens is configured to emit light emitted from the second LEDs to the side of the LED lighting apparatus. LED lighting fixture, characterized in that arranged to condense.
According to claim 1, wherein the cover portion is made of a rear cover portion fixed to the rear of the front lighting unit and a front cover portion fixed to the front of the front lighting unit,

The reflector is

A first reflecting plate reflecting the light emitted from the second LED of the side lighting unit and proceeding to the side surface, the first reflecting plate installed on the rear cover unit along the side of the front lighting unit, and fixing the side lighting unit and the front cover unit; And

A second reflecting plate reflecting light emitted from the LED of the side lighting unit to proceed in the second direction, and installed to face the first reflecting plate;

LED lighting fixture, characterized in that provided.
The LED lighting device of claim 1, wherein the cover part further comprises a heat dissipation partition wall coupled to the front lighting part at a predetermined interval on a rear surface thereof.
5. The LED lighting device of claim 4, wherein the heat dissipation partition of the rear cover part includes a plurality of ventilation holes.
4. The LED of claim 3, wherein the first reflector further includes a protrusion having a '凹' shape in the center along an inner circumferential surface, and fixes the side lighting unit and the front cover to the protrusion. Lighting fixtures.
According to claim 1, wherein the LED lighting fixture further comprises a side cover portion which is installed on the front of the direction of the light of the second LED of the side lighting portion, the side cover portion is formed in the shape of the convex lens of the side lighting portion LED luminaires characterized in that the light emitted from the second LEDs are refracted in the direction of the ceiling.
According to claim 1, wherein the cover portion is a rear cover portion fixed to the rear of the front lighting unit, the front cover portion fixed to the front of the front lighting unit and the side installed in the front of the direction of the light of the second LED of the side lighting unit proceeds It consists of a cover part,

The reflector is

A first reflecting plate reflecting the light emitted from the second LED of the side lighting unit and proceeding to the side surface, the first reflecting plate installed on the rear cover unit along the side of the front lighting unit, and fixing the side lighting unit and the front cover unit; And

And a second reflecting plate reflecting light emitted from the LED of the side lighting unit to proceed in the second direction, and installed to face the first reflecting plate.

The side cover portion is formed in the shape of a convex lens is disposed between the first reflecting plate and the second reflecting plate, LED lighting device.