KR100882592B1

KR100882592B1 - Illuminator

Info

Publication number: KR100882592B1
Application number: KR1020080000192A
Authority: KR
Inventors: 전기선
Original assignee: 주식회사 지에이
Priority date: 2008-01-02
Filing date: 2008-01-02
Publication date: 2009-02-12

Abstract

An illumination device is provided to naturally emit the heat generated from the LED (Light Emitting Diode) power chip by forming the heat dissipation slit in the outside of the device. An illumination device includes a device body(10), a cover(20) and a sealing packing(30). The device body comprises a cooling fin(12), a reflection plate(13), a power supply (15) and a connection line(16). A LED power chip(5) is mounted on the cooling fin. The cooling fin delivers the heat generated from the LED power chip outside. The reflection plate reflects the light emitted from the LED power chip. The power supply is positioned in the space between the cooling fin and the rear side of the device body. The connection line connects the power supply to the LED power chip. A radiation slit(17) caves in the outdoor of the device body. A groove (10a) is formed in the one end of the device body. The end part (20a) of cover is inserted into the groove of the device body. Therefore, the cover is combined with the device body. The sealing packing is positioned between the groove of the device body and the end part of cover. The sealing packing prevents the particle inflow to the gap between the groove and the end part.

Description

Lighting fixtures {Illuminator}

The present invention relates to a luminaire, and more particularly, not only can maintain the maximum illuminance while reducing power consumption, but also is sufficient to be applied at low cost, and in particular, the maintenance cost is significantly reduced due to the semi-permanent life. It relates to a lighting fixture that can be made.

An illuminator refers to a mechanism for fixing or protecting a light source by reflecting, refracting, or transmitting light of the light source. Lighting equipment is divided into indirect lighting, semi-indirect lighting, overall diffuse lighting, semi-direct lighting, and direct lighting. According to the purpose of use, it is classified into incandescent lamp, fluorescent lamp, stand, reflector, floodlight, garden lamp, road lamp, stage instrument, medical instrument, special lighting instrument, etc.

Incandescent lighting is used as a place or accent light that emphasizes the atmosphere rather than the efficiency, and is suitable when the light source is not exposed and the ceiling is changed or the contrast is emphasized. Incandescent light fixtures often have a strong design element. Fluorescent light fixtures are used in high-level lighting such as offices, classrooms and factories, and are the most economical. Stands are used for local lighting, depending on the light source, incandescent bulbs are decorative elements, fluorescent lamps are used as functional elements. Reflective shades are used in factories and gyms with high ceilings for direct lighting. Floodlights are used to illuminate the exterior walls of buildings, gardens, airports, stadiums, and fountains. Garden lights are used as lighting and accents in the garden. Roads emphasize efficiency on roads with high traffic volume and color rendering in commercial areas. Stage equipment includes border lights, footlights, spotlights, and spotlights that illuminate a place or person particularly brightly. Etc. Medical instruments include the shadow of the operating room. In addition, special lighting devices include waterproof devices, disaster prevention devices, explosion proof devices, and the like.

On the other hand, among the aforementioned types, especially in the street lamps, mercury lamps, sodium lamps, and metal lamps are mainly used, but they are consumed due to structural limitations, leading to waste of power, and the maintenance cost is increased due to their limited lifespan. There was a problem.

In order to improve this problem, some conventional technologies have applied an LED power chip and a heat sink instead of mercury lamp, sodium lamp, and metal lamp. However, in such a case, since a separate heat dissipation fan or the like must be further installed as a means for discharging high temperature heat generated from the heat dissipation plate, there is a problem that it is rather insufficient to be applied at a low cost.

An object of the present invention is to provide a luminaire that can not only reduce the power consumption but also maintain the maximum illuminance and is sufficient to be applied at low cost, and in particular, can significantly reduce the maintenance cost due to the semi-permanent life. .

The object is, one region of the inner form the place where the at least one LED power chip is mounted, the outside of the mechanism body for forming a heat dissipation heat dissipation generated from the LED power chip; And a cover made of a transparent or translucent material detachably coupled to one side of the apparatus body with the LED power chip therebetween.

Here, the heat dissipation portion may be formed by a plurality of heat dissipation slits recessed inward from the outer surface of the mechanism body.

The plurality of heat dissipating slits may be formed over the entire outer surface of the instrument body except for a non-slit section formed at the rear center region of the instrument body.

The place where the LED power chip is mounted may be a heat sink connected to the heat dissipation unit, and the LED power chip may be bolted to the heat sink.

One surface of the heat sink facing the cover may be further provided with a reflector for reflecting light emitted from the LED power chip to the cover side.

The reflector may be made of stainless steel or aluminum.

An end portion of the instrument body may be provided with a groove portion into which the end portion of the cover is fitted and coupled, and a sealing packing may be further interposed between the end portion of the cover and the groove portion.

According to the present invention, not only can maintain the maximum illuminance while reducing the power consumption, but also sufficient to be applied at a low cost, in particular, the maintenance cost can be significantly reduced due to the semi-permanent life.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a plan view of a lighting device according to an embodiment of the present invention, Figure 2 is a rear view of Figure 1, Figure 3 is a cross-sectional view taken along the line A-A of FIG.

Prior to the description of the drawings, the lighting device 1 of the present embodiment may be mainly used for street lamps. However, since the scope of the present invention is not limited thereto, the lighting device 1 of the present embodiment may be used for other purposes than street lamps.

The lighting device 1 according to the present embodiment includes a mechanism body 10 and a cover 20 that is detachably coupled to the apparatus body 10.

The appliance body 10 is a part which forms an external appearance in the lighting fixture 1 of this embodiment. As shown, the instrument body 10 has a long rectangular shape where the cover 20 is coupled, the inside has a trapezoidal shape. However, since the scope of the present invention is not limited thereto, the shape and shape of the instrument body 10 need not necessarily be the same as the drawings.

Inside the instrument body 10, a wall is formed parallel to the back of the instrument body 10, a plurality of LED power chip 5 is coupled to the wall. For reference, an LED, also called a luminescent diode, creates a small number of carriers (electrons or holes) injected using a pn junction structure of a semiconductor, and indicates that the LED emits light by recombination. The amplified may be the LED power chip (5). In the present embodiment, five LED power chips 5 are provided, but the number thereof may be appropriately changed.

Since the LED power chip 5 generates heat through substantial light emission, a heat sink having a predetermined thickness is formed on a wall which is a place where the LED power chip 5 is mounted as a means for dissipating the generated heat. (12) is applied.

Although the LED power chip 5 is coupled to the heat sink 12 in the present embodiment, the bolt 14 is coupled, but other coupling schemes other than the bolt 14 coupling, for example, a hook coupling scheme, may be applied.

One surface of the heat sink 12 facing the cover 20 is further provided with a reflector 13 for reflecting light emitted from the LED power chip 5 toward the cover 20. Stainless steel or aluminum may be used as the reflecting plate 13, but may be replaced with a thin metal sheet or a reflective sheet.

In order to supply power to the LED power chip 5 coupled to the heat sink 12, the power supply unit 15 is provided in the space between the heat sink 12 and the rear surface of the mechanism body 10. The power supply unit 15 is electrically connected to the LED power chip 5 by the connecting line 16.

The outside of the instrument body 10 forms a heat dissipation slit 17 for dissipating heat generated from the LED power chip 5. In this embodiment, since natural heat dissipation is pursued instead of forced heat dissipation by a heat dissipation fan (not shown), the heat dissipation slit 17 is recessed inward from the outer surface of the mechanism body 10 as shown. It can be formed as.

At this time, when a plurality of heat radiation slits 17 are formed over the entire outer surface of the instrument body 10, the effect of heat radiation can be increased. However, in the present embodiment, except for the non-slit section B as an empty space for the installation and maintenance of the above-described power supply unit 15 and the connecting line 16, the entire outer surface of the instrument body 10 The heat radiation slit 17 is formed. At this time, the heat dissipation slit 17 is in contact with the heat dissipation plate 12 to which the LED power chip 5 is coupled in some section. Therefore, after the heat generated from the LED power chip 5 is directed to the heat dissipation slit 17 through the heat dissipation plate 12, natural heat can be dissipated by outside air. For reference, the heat dissipation plate 12 and the heat dissipation slit 17 may be preferably integrally injection molded in the manufacture of the instrument body 10, but are not necessarily so.

The cover 20 serves to prevent damage to the LED power chip 5 as a part detachably coupled to one side of the mechanism body 10 with the LED power chip 5 therebetween. The cover 20 may be made of a plastic material, including a glass material. However, when the cover 20 is made of an opaque material, since the light from the LED power chip 5 cannot be diffused to the outside, the material of the cover 20 may be at least transparent or translucent material.

In order to cover the cover 20 with the instrument body 10, an end region of the instrument body 10 is provided with a groove portion 10a engaged with the end portion 20a of the cover 20. Thus, the cover 20 is coupled to the instrument body 10 by pushing the end portion 20a of the cover 20 into the groove portion 10a of the instrument body 10. However, at this time, if a gap is generated between the groove portion 10a of the instrument body 10 and the end portion 20a of the cover 20, water vapor, water, or foreign matter may flow through the gap. In order to prevent this phenomenon, the sealing packing 30 is further interposed between the end portion 20a of the cover 20 and the groove portion 10a.

In the state in which the luminaire 1 having such a structure is assembled as shown in FIG. 3, the luminaire 1 is mounted on a suitable place, for example, a roadside, and the power is supplied to the power supply unit 15. When power is applied to the power supply unit 15, the power is supplied to the LED power chip 5 through the connection line 16 to emit light of the LED power chip 5. The emitted light is to illuminate the distance through the cover 20.

According to the present embodiment having such a structure, it is possible not only to maintain the maximum illuminance while reducing its power consumption compared to the conventional neon lamps, but also to be applied at low cost, and in particular, to maintain the maintenance cost due to the semi-permanent life. Can be reduced.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

1 is a plan view of a lighting device according to an embodiment of the present invention,

2 is a rear view of FIG. 1;

3 is a cross-sectional view taken along the line A-A of FIG.

* Explanation of symbols for the main parts of the drawings

1: lighting fixture 5: LED power chip

10: body 12: heat sink

13: reflector 15: power supply

17: heat dissipation unit 20: cover

30: sealing packing

Claims

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A luminaire having a built-in LED power chip, comprising: a heat sink 12 for mounting the LED power chip 5 to transfer heat generated from the LED power chip to the outside; and a bolt 14 to the heat sink 12. Reflecting plate 13 for reflecting light emitted from the combined LED power chip 5, the power supply unit 15 located in the space between the heat sink 12 and the back of the instrument body 10, and the power supply unit ( 15) is provided with a connecting line 16 for connecting the LED power chip 5, the outer surface is formed with a heat sink slit 17 recessed inward, the one end can insert a portion of the cover 20 Instrument body 10 is provided with a groove (10a); And

A cover 20 having an end portion 20a inserted into the groove portion 10a formed at the end portion of the instrument body 10 to be coupled to the instrument body 10; and

Located between the groove portion 10a of the instrument body 10 and the end portion 20a of the cover 20, a sealing packing 30 for preventing foreign matter from flowing between the groove portion 10a and the end portion 20a. A lighting device, characterized in that consisting of.

According to claim 5, When the cover 20 is coupled to the instrument body 10, the end portion 20a formed on one side of the cover 20 is fitted into the groove portion (10a) formed in the instrument body 10 Lighting fixtures that can be put and combined.