KR101379319B1 - Illumination apparatus - Google Patents

Abstract

The present invention relates to an illumination device. The illumination device comprises; multiple light sources mounted on a printed circuit board; and a sealing cover which is formed of a transparent or opaque synthetic resin so that a plane corresponding to a substrate has a flat and vertical side. The sealing cover covers the printed circuit board so that the multiple light sources are located in the inner side. The illumination device comprises; a heat radiation plate which is installed to be touched with the lower side of the printed circuit and discharges heats generated from the multiple light sources; a rotary unit in which a warm gear is vertically interlocked with a warm; and a combination unit which sets the rotary unit in the inner side and is fixated on an attachment type bracket. The rotary unit rotates a main body including a lens and the heat radiation plate with a rotary shaft of the warm as the center by rotating the warm. The rotary unit maintains an initial state of an irradiation direction of light outputted to the outside. Therefore, the present invention prevents the main body including the lens and the heat radiation plate from being rotated by wind or impacts when the illumination device is used indoors or outdoors, thereby preventing the generation of light loss and pollution. Also, the present invention prevents the generation of the light loss by preventing the light radiated from the multiple light sources from being reflected to the rear side of the heat radiation plate from the side of the sealing cover.

Description

Lighting apparatus

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus, and more particularly, to a lighting apparatus using a light emitting diode (LED) or an organic light emitting diode (OLED) as a light source.

In general, incandescent lamps or fluorescent lamps are widely used as indoor or outdoor lighting lamps. In addition, street lamps installed on the road are installed such that sodium lamps or ordinary metal lamps are regularly arranged at intervals of approximately 30M to 50M along the road. The incandescent lamp used as a light source of the illumination is less efficient by heating the filament to generate light, and the fluorescent lamp generates light by emitting a phosphor, which has less power consumption than the incandescent lamp, but has a phosphor inside. Hazardous mercury (Ag) is used. In addition, sodium and metal used as a light source of the street light also has the disadvantage of high power consumption and short life.

In recent years, lighting apparatuses using LEDs or OLEDs as light sources have been developed. In the above, LED or OLED has a long life and low power consumption. In particular, the lifespan is more than three times longer than general fluorescent lamps and has excellent performance as a lighting material because it has brightness equivalent to fluorescent lamps in brightness.

However, a light source using an LED or an OLED has excellent brightness but a small viewing angle, and there is a problem in that the light source is extremely limited due to the heat generation problem of the light source.

Therefore, the necessity of the development of a lighting device that solves the small viewing angle and the heat generation problem of the light source by using LED or OLED as a light source is increasing.

The lighting apparatus according to the prior art for solving the above problems is disclosed in Korean Patent No. 10-1130584 (name of the invention: lighting apparatus) filed and registered by the present applicant.

1 is an exploded perspective view of a lighting apparatus according to the prior art.

The lighting device 11 according to the related art includes a printed circuit board 15, a plurality of light sources 13, a lens 17, a heat sink 19, a rotating part 27, and a coupling part 29.

The plurality of light sources 13 are selected from LEDs or OLEDs that generate light of red (R), green (G), blue (B), and white (W) and are on the same printed circuit board 15. It is mounted on

The heat sink 19 is formed of copper, aluminum or magnesium having excellent heat transfer characteristics, ceramics, or an alloy thereof, and is provided to abut the lower portion of the printed circuit board 15 on which the plurality of light sources 13 are mounted. The heat sink 19 may effectively heat the heat generated from each light source 13 to the outside.

The rotating part 27 is composed of a rotating end 23 and a hinge shaft 25 to rotate the main body including the lens 17 and the heat sink 19 of the lighting device 11. The rotating end 23 is formed in a ring shape at one end of the main body including the lens 17 and the heat sink 19 of the lighting device 11, the hinge shaft 25 is flowed in the coupling portion 29 It is installed so as not to be fitted into the rotary stage 23 is coupled. In the above, when the pivoting end 23 and the hinge shaft 25 are coupled, a tooth is formed in the form of a side chatter from the center to the outward direction, respectively. Therefore, when the main body including the lens 17 and the heat sink 19 of the illuminating device 11 is rotated about the hinge axis 25, the teeth of each of the pivoting end 23 and the hinge axis 25 are in contact with each other. Increasing it allows you to maintain that angle after a certain angle of rotation.

Coupling portion 29 allows the rotating portion 27 composed of the pivoting end 23 and the hinge shaft 25 to be positioned therein, and the lighting device 11 is mounted on a mounting bracket (not shown) installed on the wall or ceiling. Fix it.

The lighting device 11 having the above-described configuration is rotated about the hinge axis 25 when a user applies a force to adjust the irradiation direction of light to the main body including the lens 17 and the heat sink 19. At this time, the main body including the lens 17 and the heat sink 19 is able to maintain the angle after the rotation by a predetermined angle by the teeth formed on the rotary end 23 and the hinge shaft 25, respectively.

However, the lighting apparatus according to the prior art has a problem in that the light irradiation and the light pollution by changing the irradiation direction of the light by rotating the main body including the lens and the heat sink when the wind or when impacted when used outdoors. In addition, there is a problem that a rear light distribution phenomenon in which light generated from a plurality of light sources is reflected from the inner surface of the lens and irradiated to the rear surface is generated.

Accordingly, an object of the present invention is to provide a lighting device that can prevent the loss of light and light pollution by preventing the main body including the lens and the heat sink to rotate by the wind or impact when used outdoors.

Another object of the present invention is to provide an illumination device capable of preventing the occurrence of a post-light distribution phenomenon in which light emitted from a plurality of light sources is irradiated to the rear surface.

Another object of the present invention is to provide a lighting device that can produce a variety of lighting fixtures in combination with the lighting device.

The lighting apparatus according to the present invention for achieving the above objects is formed of a transparent or opaque synthetic resin so as to have a plurality of light sources mounted on a printed circuit board, and the surface corresponding to the printed circuit board has a flat and vertical side surface A sealing cover covering the printed circuit board so that the plurality of light sources are positioned therein, a heat dissipation plate installed to be in contact with a lower portion of the printed circuit board to radiate heat generated from the plurality of light sources to the outside, and a worm gear and a worm Rotating part configured to be engaged with each other at a right angle to rotate the worm to rotate the main body including the lens and the heat sink around the rotation axis of the worm to maintain the initial direction of the irradiation direction of light emitted to the outside during use, and the rotating part Located inside and secured to the mounting bracket, along the guide by means of a key formed to protrude It includes an engaging portion for copper.

The light shielding plate may further include a light blocking plate which is hinged to both sides of the sealing cover so as to be rotated to the heat sink to prevent light emitted from the plurality of light sources from being reflected from the side of the sealing cover to the rear surface of the heat sink.

In the above, a plurality of light sources are formed of LEDs or OLEDs.

The lens further comprises a lens formed of a transparent synthetic resin to cover a flat surface corresponding to the printed circuit board of the sealing cover.

The light shielding plate is formed of an opaque synthetic resin, or is formed of copper, aluminum or magnesium, ceramic, or an alloy thereof.

The apparatus further includes a power supply unit built in the coupling unit to convert external power to electrically connect the plurality of light sources.

The coupling part further includes a key that can move along the guide.

Therefore, the present invention prevents the main body including the lens and the heat sink from being rotated by the wind or the impact when the lighting device is used indoors or outdoors, thereby preventing the occurrence of light loss and light pollution. By blocking the light emitted from the plurality of light sources to the back of the heat sink from the side of the sealing cover there is an advantage that can prevent the loss of light.

1 is an exploded perspective view of a lighting apparatus according to the prior art.
2 is an exploded perspective view of the lighting apparatus according to the present invention.
3 is a side view of the lighting apparatus according to the present invention.
4 is an operational state diagram of the lighting apparatus according to the present invention.
5 is an exemplary view of the use of a security light or a street lamp by a combination of lighting devices according to the present invention.
6a to 6c is an illustration of the utilization of the luminaire by the combination of the lighting device according to the present invention.
7a and 7b is an illustration of the utilization of the lamp by the combination of the lighting apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view of the lighting apparatus according to the present invention, Figure 3 is a side view of the lighting apparatus according to the present invention, Figure 4 is an operating state diagram of the lighting apparatus according to the present invention.

The lighting device 31 according to the present invention includes a printed circuit board 35, a plurality of light sources 33, a sealing cover 37, a lens 41, a heat sink 45, a light shielding plate 47, a rotating part 53, and Coupling part 55 is included.

The plurality of light sources 33 are selected from LEDs or OLEDs that generate light of red (R), green (G), blue (B), and white (W) and are on the same printed circuit board 35. It is mounted on

The sealing cover 37 is formed of a transparent or opaque synthetic resin to transmit light, and is installed to cover the printed circuit board 35 so that the plurality of light sources 33 are positioned therein. In the above, the sealing cover 37 is formed such that the surface corresponding to the printed circuit board 35 on which the plurality of light sources 33 are mounted has a flat and almost vertical side surface. Thus, the sealing cover 37 generally transmits the light emitted from the plurality of light sources 33 without reflecting from the inner surface. Therefore, light emitted from the plurality of light sources 33 may be irradiated to the rear surface of the heat sink 45 to prevent light loss and light pollution. The sealing cover 37 is formed with a plurality of protrusions 39 on the outside of the side.

The lens 41 is formed of a transparent synthetic resin to cover a flat surface corresponding to the printed circuit board 35 of the sealing cover 37. In the lens 41, a plurality of fastening holes 43 are formed at portions corresponding to the plurality of protrusions 39 formed on the outer side of the sealing cover 37. Therefore, the lens 41 has a plurality of projections 39 are inserted into the plurality of fastening holes 43 are fastened to the sealing cover 37. The lens 41 diffuses or focuses the light passing through the sealing cover 37 and emits it to the outside.

The heat sink 45 is made of copper, aluminum or magnesium having excellent heat transfer characteristics, ceramics, or an alloy thereof to contact the lower portion of the printed circuit board 35 on which the plurality of light sources 33 are mounted. In the above, the heat sink 45 may effectively radiate heat generated from each light source 33 to the outside.

The light blocking plate 47 is formed of an opaque synthetic resin and hinged to rotate on the heat sink 45 on both outer sides of the sealing cover 37. In the light shielding plate 47, a part of the light emitted from the plurality of light sources 33 is reflected from the side surface of the sealing cover 37 to prevent the light leakage phenomenon from being emitted to the rear surface of the printed circuit board 35. .

In addition, the light shielding plate 47 may be formed of the same material as the heat sink 45 such as copper, aluminum or magnesium having excellent heat transfer characteristics, ceramics, or an alloy thereof. When the light blocking plate 47 is formed of the same material as the heat sink 45, the heat generated by each light source 33 together with the heat sink 45 may be emitted to the outside, thereby increasing the heat dissipation effect.

The rotating part 53 is configured such that the worm gear 49 and the worm 51 are engaged with each other at a right angle, so that the main body including the lens 41 and the heat sink 45 of the lighting device 31 is centered on the rotation axis of the worm 51. Rotate to The worm gear 49 is fixedly installed at one end of the main body including the lens 41 and the heat sink 45 of the lighting device 31. Therefore, the rotary part 53 includes the lens 41 and the heat sink 45 of the lighting device 31 by driving the worm gear 49 when the worm 51 is rotated about an axis using an extension such as a wrench. The irradiation direction of the emitted light can be adjusted by rotating the main body.

The rotating part 53 rotates the worm 51 to drive the worm gear 49, so that the lighting device 31 is used by the wind or when the lighting device 31 is used outdoors, or the main body including the lens 41 and the heat sink 45. By applying a force, the main body including the lens 41 and the heat sink 45 is prevented from rotating. Therefore, the irradiation direction of light generated by the plurality of light sources 33 and emitted to the outside through the sealing cover 37 or the lens 41 is maintained unchanged in a state initially determined by the user, thereby improving light pollution while improving light efficiency. Can be prevented.

Coupling portion 55 allows the rotating portion 53 composed of the worm gear 49 and the worm 51 to be positioned therein, and fixes the lighting device 31 to a mounting bracket (not shown) installed on the wall or ceiling. . In the coupling portion 55, a through hole 57 through which an extension such as a wrench penetrates is formed in a portion corresponding to the drive shaft of the worm 51. In addition, the coupling unit 55 has a built-in power supply 59 for converting the external power to the plurality of light sources 33 to be electrically connected.

In addition, the key 61 protruding from the coupling portion 55 may move along the guide in the luminaire to adjust light distribution as shown in FIGS. 5, 6A to 6C, and FIGS. 7A and 7B.

In the lighting device 31 according to the present invention having the above-described configuration, the surface corresponding to the printed circuit board 35 of the sealing cover 37 is not only flat, and the light shielding plate 47 is provided on both sides of the outside of the sealing cover 37. Since the hinge is coupled to 45 to prevent the light emitted from the plurality of light sources 33 from being irradiated to the rear surface of the heat sink 45, the light loss and the light pollution phenomenon are prevented. The light emitted from the plurality of light sources 33 is generally transmitted through the flat surface corresponding to the printed circuit board 35 of the sealing cover 37 without being reflected from the inner surface. In addition, the light blocking plate 47 prevents a portion of the light emitted from the plurality of light sources 33 from being reflected from the side of the sealing cover 37 and irradiated to the rear surface of the heat sink 45. Therefore, the light emitted from the plurality of light sources 33 by the sealing cover 37 and the light shielding plate 47 having a flat surface corresponding to the printed circuit board 35 is blocked from being irradiated to the rear surface of the printed circuit board 35. Therefore, it is possible to prevent the occurrence of light loss and light pollution phenomenon.

The lens 41 formed of a transparent synthetic resin is installed to cover a flat surface corresponding to the printed circuit board 35 of the sealing cover 37 to diffuse or focus light passing through the sealing cover 37 to the outside. Release.

The rotating part 53 includes the lens 41 and the heat sink 45 of the lighting device 31 by rotating the worm 51 using an extension such as a wrench through the through-hole 57 formed in the coupling part 55. The main body can be rotated about the rotation axis of the worm 51 to adjust the light irradiation direction. In the above, the main body including the lens 41 and the heat sink 45 of the lighting device 31 is rotated only by the rotation of the worm 51 and is not rotated by wind or force applied by the user. Therefore, when the lighting device 31 is used indoors or outdoors, the direction of irradiation of light generated by the plurality of light sources 33 and emitted to the outside due to undesired wind or force applied by the user is determined by the user for the first time. Since it remains unchanged, light pollution can be prevented while improving light efficiency.

By using the above-described lighting device 31 as a module, a plurality of combinations can be manufactured to produce various kinds of lighting devices such as security lamps, street lamps, general lamps or lamps.

That is, as shown in FIG. 5, a plurality of lighting devices 31 may be coupled to the body 63 in a row to manufacture a security lamp or a street lamp.

In addition, as shown in FIGS. 6A to 6C, two to four lighting apparatuses 31 may be combined with a body 65 having a guide groove 67 to manufacture a general luminaire. The guide groove 67 may adjust the light distribution by allowing the protruding key 61 shown in FIGS. 2 and 4 to be moved.

In addition, as shown in FIGS. 7A and 7B, a plurality of lighting devices 31 may be coupled to the body 69 in the body 69 having the guide groove 71, and may also be manufactured as a lamp. 71 can realize the optimal light distribution by allowing the key 61 protruding from the coupling portion of the lighting device 31 to be moved.

As described above, the present invention is only one embodiment, and the present invention is not limited to the above-described embodiments, and various modifications may be made by those skilled in the art within the technical scope of the present invention. It is possible.

31: lighting device 33: light source
35: printed circuit board 37: sealing cover
41 lens 45 heat sink
47: light shielding plate 53: rotating part
55: coupling part

Claims (8)

A plurality of light sources mounted on a printed circuit board,
A sealing cover formed of a transparent or opaque synthetic resin such that the surface corresponding to the printed circuit board has a flat and vertical side surface to cover the printed circuit board so that the plurality of light sources are positioned therein;
A heat sink installed to be in contact with a lower portion of the printed circuit board and dissipating heat generated by the plurality of light sources to the outside;
The worm gear and the worm is configured to mesh with each other at a right angle to rotate the worm to rotate the main body including the lens and the heat sink around the axis of rotation of the worm and to maintain the initial direction of the irradiation direction of light emitted to the outside during use and ,
The rotating unit is located inside and is fixed to the mounting bracket and comprises a coupling unit moving along the guide by a key formed to protrude.
The lighting device of claim 1, wherein the plurality of light sources are formed of LEDs or OLEDs.
The lighting apparatus of claim 1, further comprising a lens formed of a transparent synthetic resin corresponding to the printed circuit board of the sealing cover.
The lighting apparatus of claim 1, further comprising a light shielding plate hinged to the heat sink to block light emitted from the plurality of light sources from being reflected from the side surface to the rear surface of the heat sink.
The lighting device according to claim 4, wherein the light blocking plate is formed of an opaque synthetic resin.
The lighting device according to claim 4, wherein the light shielding plate is formed of copper, aluminum, magnesium, ceramics, or an alloy thereof.
The lighting apparatus as set forth in claim 1, further comprising a power supply unit embedded in the coupling unit to convert external power to electrically connect the plurality of light sources.
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