KR20110093590A - Led lighting apparatus - Google Patents

Abstract

PURPOSE: An LED illuminating device is provided to prevent dazzle of a user by adding an auxiliary reflector reflecting back light emitting from an LED element to a main reflector. CONSTITUTION: A main reflector(200) comprises a reflecting surface. The reflecting surface reflects light from LED elements. An LED module(100) is arranged on the upper opening of the main reflector. A horn shape of a reflecting surface is formed on the external surface of the auxiliary reflector(300). The auxiliary reflector is installed to hide the LED elements installed on an LED substrate, viewed from the bottom.

Description

LED lighting device {LED Lighting Apparatus}

The present invention relates to a lighting apparatus, and more particularly, to an LED lighting apparatus for lighting by using the LED element.

The lighting apparatus is a mechanism for fixing or protecting a light source by reflecting, refracting and transmitting light of a light source, and means a mechanism for fixing or protecting a light source by reflecting, refracting and transmitting light of a light source.

Light sources of lighting devices include incandescent and fluorescent lamps used indoors, and halogen lamps used outdoors such as park lights and street lamps.

On the other hand, LED (Light Emitting Diode) is a semiconductor that emits light, and has low power consumption (1/6 of incandescent lamps), long life (8 times of incandescent lamps), and eco-friendly characteristics (without harmful substances such as mercury). It is applied for each purpose in various fields such as light source, indoor light, street light, lighting and automobile.

However, the LED has a very strong light intensity and straightness, which not only makes the user's eyes tired but also has a low light diffusion characteristic.

An object of the present invention is to provide an LED lighting device that can prevent the glare of the user by additionally providing an auxiliary reflecting plate for re-reflecting the light emitted from the LED element to the main reflecting plate in order to solve the disadvantages of the LED lighting device as described above To provide.

Another object of the present invention is to solve the disadvantages of the LED lighting device as described above, by additionally providing an auxiliary reflector for reflecting the light emitted from the LED element to the main reflector to prevent glare of the user as well as illuminance To provide a LED lighting device that can greatly improve the.

The present invention was created in order to achieve the object of the present invention as described above, the present invention includes an LED module including an LED substrate on which a plurality of LED elements are installed; A main reflection plate having a lateral shape of an horn of an upper and lower ends thereof, the reflecting surface reflecting light of the LED elements formed on an inner surface thereof, and the LED module being installed in an upper opening thereof; Disclosed is an LED lighting device having an horn shape having a reflecting surface formed on an outer surface thereof and including an auxiliary reflecting plate installed at a vertex directly under the LED module to face the LED module.

The LED module includes a plurality of the LED elements; An LED substrate on which the LED elements are installed; It may include a heat dissipation member coupled to the LED substrate to dissipate heat generated by the LED element.

The main reflector plate may have a truncated cone shape or a truncated pyramidal shape, in particular, a truncated pyramidal shape or a hexagonal pyramidal shape.

The main reflector may include a first main reflector on which the LED module is coupled at an upper end thereof; The upper and lower ends may include a second main reflecting plate having a side shape of an horn, and a reflecting surface reflecting light is formed on the inner surface, and an upper end thereof is coupled to a lower end of the first main reflecting plate.

The first main reflector and the second main reflector may have a truncated cone shape or a pyramidal shape, in particular, a pyramidal shape or a hexagonal pyramidal shape.

The first main reflector and the second main reflector have a pyramidal shape, and any one of the first main reflector and the second main reflector has a trapezoidal shape in which a polygonal surface forming a side surface of a pyramid is not an equilateral trapezoid or an equilateral trapezoid. Can have

The first main reflector and the second main reflector have a pyramidal shape, and either one of the first main reflector and the second main reflector has a curved line formed by a polygonal surface forming a side surface of the pyramid with a neighboring polygonal surface. It may be formed to form an angle with the baseline connecting the end of the curve and the center of the horn.

The auxiliary reflecting plate is preferably installed so as to cover all the LED elements installed in the LED substrate when viewed from the bottom.

The present invention also includes an LED module including a plurality of LED elements installed on the LED substrate having a rectangular shape; A main reflection plate installed at each long side of the LED module and having a vertical cross section having a trapezoidal shape, and having a reflection surface reflecting light of the LED elements on an inner surface thereof; A reflective surface is formed on an outer surface thereof, and a vertical cross section may have a triangular pyramid shape, and an auxiliary reflector plate may be installed so that a vertex is directly below the LED module in the main reflecting plate toward the LED module.

The auxiliary reflecting plate is preferably installed so as to cover all the LED elements installed in the LED substrate when viewed from the bottom.

The LED lighting apparatus according to the present invention has an advantage of preventing glare of the user by additionally providing an auxiliary reflector for reflecting light emitted from the LED element back into the main reflector.

Furthermore, the LED lighting apparatus according to the present invention has an advantage of preventing the glare of the user and greatly improving the illuminance by adding an auxiliary reflector to reflect the light emitted from the LED element into the main reflector.

In particular, in the LED lighting device having the configuration as shown in Figs. 4A and 4B, the illuminance measured directly below 2.5m was 507 lux in the absence of the reflector, whereas the illuminance was measured at 608 lux, which was improved by about 20%. .

Therefore, it can be seen that the LED lighting apparatus according to the present invention greatly improves illuminance by adding an auxiliary reflector to reflect the light emitted from the LED element back into the main reflector.

1 is a longitudinal sectional view showing the LED lighting apparatus according to the present invention.
Figure 2 is a side cross-sectional view showing a disassembled state of the LED lighting device of FIG.
3A and 3B are a cross-sectional view and a bottom view, respectively, showing a first embodiment of a main reflector of the LED lighting device of FIG.
4A and 4B are a cross-sectional view and a bottom view, respectively, showing a second embodiment of the main reflector of the LED lighting device of FIG.
5A and 5B are a sectional view and a bottom view, respectively, showing a third embodiment of the main reflector of the LED lighting device of FIG.
6A and 6B are a sectional view and a bottom view, respectively, showing a fourth embodiment of the main reflector of the LED lighting apparatus of FIG.
7a and 7b is a vertical sectional view and a bottom view showing another example of the LED lighting apparatus according to the present invention.

Hereinafter, the LED lighting apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a longitudinal sectional view showing the LED lighting apparatus according to the present invention, Figure 2 is a side cross-sectional view showing a disassembled state of the LED lighting apparatus of Figure 1, Figures 3a and 3b is the main of the LED lighting apparatus of Figure 1 4A and 4B are cross-sectional views and a bottom view showing a second embodiment of the main reflector of the LED lighting apparatus of FIG. 1, respectively, and FIGS. 5A and 5B are respective views. 1 is a cross-sectional view and a bottom view showing a third embodiment of the main reflecting plate of the LED lighting apparatus of FIG. 1, and FIGS. 6A and 6B are a cross-sectional view and a bottom view showing a fourth embodiment of the main reflecting plate of the LED lighting apparatus of FIG. .

The LED lighting apparatus according to the present invention, as shown in Figure 1 to Figure 6b, the LED module 100 including an LED substrate 120 is provided with a plurality of LED elements 110; A main reflection plate 200 having a lateral shape of a horn of an upper and lower ends thereof, the reflecting surface 211 reflecting light of the LED elements 120 formed on an inner surface thereof, and the LED module 100 being installed in an upper opening thereof; An auxiliary reflector plate having a horn shape having a reflecting surface 311 formed on an outer surface thereof and having a vertex directly below the LED module 100 facing the LED module 100 in the main reflector plate 200 of the LED module 100. And 300.

The LED module 100 is a configuration in which the LED elements 110 emit light by power supply, and may be variously configured according to the type of the LED element 110 and the configuration of the LED substrate 120.

As an example of the LED module 100, as shown in Figure 1 and 2, the plurality of LED elements (110); LED elements 110 may be configured to include an LED substrate 120 is installed.

The LED device 110 is a semiconductor device that emits light by power supply according to lighting conditions, and various LED devices such as white LED, red LED, blue LED, green LED, and power LED device may be used.

The LED substrate 120 is a configuration for installing the LED element 110, PCB, FPCB, etc. may be used.

Although the LED substrate 120 is not shown, a circuit element for driving control, circuit protection, etc. of the LED elements 110 may be installed, and a power connection terminal for connection with an external power source may be installed.

Meanwhile, the LED elements 110 installed on the LED substrate 120 may be molded by a resin capable of protecting the LED elements 110 while transmitting light for the protection thereof.

The LED module 100 is coupled to the LED substrate 120 to dissipate the heat generated in the light emitting process in the LED device 110, the heat radiation member 130 for radiating heat generated from the LED device 110 It may further comprise.

The heat dissipation member 130 may have an appropriate shape in consideration of the overall shape of the lighting apparatus, the shape of the LED substrate 120, and the like.

In particular, the heat dissipation member 130 has a coupling surface to which the LED substrate 120 is closely coupled by a screw or the like, and the remaining portion except for the coupling portion with the main reflection plate 200 which will be described later is considered a plurality of fins (fin) 131 may be formed.

In addition, the heat dissipation member 130 may be formed with one or more through-holes (not shown) so that a power connection line (not shown) for power connection to the LED substrate 120 may be connected and installed therein.

The main reflector 200 is a configuration for reflecting the light emitted by the LED elements 110 of the LED module 100 to a predetermined lighting area, and may have various shapes and structures according to the purpose of installing the lighting device. .

In particular, the LED lighting device according to the present invention is installed at a predetermined height from the ground in a pole for the installation of a ceiling, a lighting device, a ceiling lamp, a security lamp, a floodlight, an indoor light, and the like, and satisfies the illuminance required for an illumination area. Can be installed.

In particular, the main reflector 200 has a conical lampshade and a reflection shade, and may have a similar appearance to a conventional lighting device having a light bulb therein.

That is, the main reflector 200 has a lateral shape of the horn of the upper and lower ends of the main reflector 200 and reflecting surfaces 211 and 221 reflecting the light of the LED elements 120 are formed on the inner surface, and the LED module 100 is formed at the upper opening. It can be configured to be installed.

The main reflector 200 and the LED module 100 may be coupled by various methods such as screws, rivets, welding.

The main reflector 200 may be a metal material having good reflecting properties, such as aluminum, aluminum alloy, etc., and a special material may be coated on the surface thereof or may be surface treated by various methods.

In addition, the surface of the main reflector 200 may form an embossing structure to increase the reflection efficiency.

The main reflector 200 may have various shapes such as a plane or a curved surface thereof, and may have a truncated cone shape or a truncated pyramid shape, in particular, as shown in FIGS. 3A and 3B. It may have a pyramidal shape.

Meanwhile, the main reflector 200 may have various structures in order to increase the lighting effect of the light emitted from the LED device 110. As shown in FIGS. 3A and 3B, the LED module 100 is coupled to the top of the main reflector 200. A first main reflector 210 having a reflective surface 211 formed therein; The upper and lower ends have a lateral shape of the horn and a reflection surface 221 for reflecting light is formed on the inner surface and the upper end is configured to include a second main reflecting plate 220 coupled to the lower end of the first main reflecting plate 210. Can be.

As described above, the first and second main reflecting plates 210 and 220 may have the same material and structure as those of the main reflecting plate 200, and the reflective surfaces 211 and 221 may be formed. Various shapes such as flat surfaces or curved surfaces may be formed, and may have a truncated cone shape or a truncated pyramid shape, and in particular, may have a truncated pyramidal shape, as shown in FIGS.

Meanwhile, the first main reflecting plate 210 and the second main reflecting plate 220 may be combined by various methods such as welding, riveting, screwing, and the like, as shown in FIGS. 3A and 3B. In may be coupled by one or more rivets 230.

And as a method of manufacturing the first main reflector 210 and the second main reflector 220 is described in detail in the Republic of Korea Patent No. 552622, detailed description thereof will be omitted.

In addition, the first main reflecting plate 210 and the second main reflecting plate 220, as disclosed in the Patent No. 552622, after bending a plurality of metal thin plate based on the bending line (L) by riveting, welding, etc. It may be formed by various methods such as formed by being bonded to each other, or formed by sheet metal or the like.

Here, the bend line L may be formed based on two or more fine holes (not shown) which are previously punched and perforated.

On the other hand, when the main reflector 200 has a polygonal pyramid shape, each polygonal surface has an equilateral trapezoidal shape to form a symmetrical structure, but may have a shape other than an equilateral trapezoid in order to improve roughness characteristics.

For example, as shown in FIGS. 4A to 6B, one of the first main reflector 210 and the second main reflector 220 has a trapezoidal shape in which a polygonal surface forming a side surface of a pyramid is not an equilateral trapezoid. Can have

That is, FIGS. 4A and 4B illustrate a case where the polygonal surface of the first main reflector 210 has a trapezoidal shape instead of an isosceles trapezoid, and the polygonal surface of the second main reflector 220 has an equilateral trapezoidal shape. 5A and 5B illustrate a case where the polygonal surface of the first main reflector 210 has an equilateral trapezoidal shape, and the polygonal surface of the second main reflector 220 has a shape other than the equilateral trapezoidal shape. FIG. 6B illustrates a case in which the polygonal surfaces of the first main reflector 210 and the second main reflector 220 have a trapezoidal shape rather than an isosceles trapezoid.

In this case, when any one of the first main reflector 210 and the second main reflector 220 has a trapezoidal shape instead of an isosceles trapezoid, the polygonal plane forming the side of the pyramid forms with the neighboring polygonal plane. The bending line L is formed to form an angle with the reference line connecting the end of the bending line L and the center of the horn.

The auxiliary reflector 300 has a horn shape having a reflective surface 311 formed on an outer surface thereof, and a connecting member (inside) of the main reflector 200 to have a vertex (O) directly below the LED module 100 facing the LED module ( Any configuration may be used as long as the configuration is connected and installed by 312, and the reflection surface 311 is formed on the outer surface.

The auxiliary reflector 300 may be a metal material having good reflective properties such as aluminum, aluminum alloy, etc., and a special material may be coated on the surface thereof or may be surface treated by various methods.

In addition, the surface of the auxiliary reflector 300 may form an embossed structure to increase the reflection efficiency.

The auxiliary reflection plate 300 may be formed by bending a plurality of metal thin plates based on the bending line SL and then being coupled to each other by riveting, welding, or the like, or formed by sheet metal. have.

The auxiliary reflector 300 may have a shape such as a cone, a pyramid (for example, 16 pyramids), a truncated cone, a pyramid (for example, a 16 pyramid).

On the other hand, when the height (H1) of the main reflector 200 is about 10cm ~ 40cm, the height (H2) of the auxiliary reflector 300 is preferably 1cm ~ 10cm.

If the height (H2) of the auxiliary reflector 300 is less than 1cm, the processing is not easy, and if the height (H2) is larger than 10cm because excessively blocking the light irradiated from the center portion adversely affects the lighting effect.

In addition, the auxiliary reflector 300 is preferably 1 cm ~ 20 cm from the vertex (O) from the LED substrate 120 of the LED module 100.

When the vertex (O) of the auxiliary reflector 300 is smaller than 1 cm from the LED substrate 120 of the LED module 100, there is a problem of reducing the illumination intensity by excessively blocking the light emitted from the LED element 110, When the vertex (O) of the auxiliary reflector 300 is greater than 20 cm from the LED substrate 120 of the LED module 100, there is a problem that the re-reflection efficiency of the light emitted from the LED element 110 is lowered to reduce the illuminance have.

The auxiliary reflector 300 is more preferably configured to cover all the LED elements 110 installed in the LED substrate 120 to block the glare when viewed from the bottom.

That is, it is more preferable that the vertical projection area of the auxiliary reflecting plate 300 includes all of the areas in which the LED elements 110 are installed in the LED substrate 120.

On the other hand, the angle (θ) that the outer surface of the auxiliary reflector 300 and the center line (C) is preferably 30 ° ~ 50 °.

Meanwhile, reference numeral 510 in FIG. 1 denotes an installation bracket for installing the LED lighting apparatus according to the present invention on the structure, 520 denotes a lamp shade for protecting the reflector, and 530, dust or the like is attached to the LED substrate 120. Points to a transparent cover to prevent it. The installation bracket, lampshade and transparent cover is not necessarily a configuration required.

On the other hand, with respect to the effect of the LED lighting apparatus according to the present invention having the configuration as described above, when the illuminance measured in the LED lighting device having a configuration as shown in Figures 4a and 4b directly below 2.5m there is no reflecting plate In contrast to the 507 lux, the illuminance was measured at 608 lux with roughly 20% improvement in illuminance.

Therefore, it can be seen that the LED lighting apparatus according to the present invention greatly improves illuminance by adding an auxiliary reflector to reflect the light emitted from the LED element back into the main reflector.

Meanwhile, the LED lighting apparatus according to the present invention is provided with an auxiliary reflecting plate 300 in order to prevent glare caused by light emitted from the LED element 110. The auxiliary reflecting plate 300 according to the present invention is provided. The various configurations are possible by modifying or changing the configuration of the lighting apparatus of FIG.

That is, as another example of the LED lighting apparatus according to the present invention, as shown in Figs. 7a and 7b, the LED module (420) including a plurality of LED elements 110 is installed and has a rectangular shape ( 400); A pair of main reflectors 600 installed on a pair of long sides of the LED module 400 and having a vertical cross section having a trapezoidal shape and a reflecting surface 611 reflecting light of the LED elements 410 on an inner surface thereof; ; The reflective surface 711 is formed on the outer surface and the vertical section has a triangular pyramid shape, and the vertex O is directly below the LED module 100 in the main reflector 600 of the LED module 100. It may be configured to include an auxiliary reflector plate 700 which is installed to face.

In the configuration of the LED lighting apparatus according to another embodiment of the present invention, the essential configuration of the LED module is the same, there is a difference in the shape, structure, etc., there is a major difference between the main reflection plate 600 and the auxiliary reflection plate 700 bar main reflection plate Only the 600 and the auxiliary reflecting plate 700 will be described.

As illustrated in FIGS. 7A and 7B, the main reflector 600 may have a rectangular shape, and a cross section may have various shapes such as a curved surface, a flat surface, one or more curved surfaces, and one or more curved surfaces.

The main reflector 600 may be a metal material having good reflection characteristics such as aluminum, aluminum alloy, etc., and a special material may be coated on the surface thereof or may be surface treated by various methods.

As shown in FIGS. 7A and 7B, the auxiliary reflector 700 is installed so that the vertex O faces the light emitting surface of the LED module 400, that is, the surface on which the LED element 410 is installed, The shape may have a triangular pyramid, eg, a '^' shape.

The material of the auxiliary reflector 700 may be a metal material having good reflection characteristics such as aluminum, aluminum alloy, etc., and a special material may be coated on the surface thereof or may be surface treated by various methods.

The reflective surface 711 of the auxiliary reflector 700 may have various shapes such as a curved surface, a flat surface, one or more curved surfaces, and one or more curved surfaces.

Since the above has been described only with respect to some of the preferred embodiments that can be implemented by the present invention, the scope of the present invention, as is well known, should not be construed as limited to the above embodiments, the present invention described above It will be said that both the technical idea and the technical idea which together with the base are included in the scope of the present invention.

100, 400: LED module
200, 600: main reflection plate
300, 700: auxiliary reflector

Claims (1)

An LED module including an LED substrate provided with a plurality of LED elements; A main reflection plate having a lateral shape of an horn of an upper and lower ends thereof, the reflecting surface reflecting light of the LED elements formed on an inner surface thereof, and the LED module being installed in an upper opening thereof; It has an horn shape with a reflective surface formed on the outer surface and includes an auxiliary reflector plate installed so that the vertex points directly below the LED module in the interior of the main reflector plate, facing the LED module,
The auxiliary reflector plate is formed by bending the metal sheet based on the bending line and then being joined to each other, or formed by sheet metal;
The auxiliary reflecting plate is coupled to an inner surface of the main reflecting plate by a lower end and a connecting member;
The apex of the auxiliary reflector is 1 cm to 20 cm from the LED substrate of the LED module;
An angle between the outer surface of the auxiliary reflector and the center line is 30 ° to 50 °;
The auxiliary reflecting plate is an LED lighting device, characterized in that installed to cover all the LED elements installed in the LED substrate when viewed from the bottom.

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