KR101000398B1 - Radiant heat type LED package - Google Patents

Abstract

The present invention relates to an LED lamp having a very low power consumption and a high brightness and a long service life. The present invention extends the service life of an LED component device and prevents changes in characteristics of the component due to high heat, thereby improving luminous performance and luminance. The present invention relates to a heat dissipating LED package capable of maintaining a long time and making a high brightness LED lamp compact.

The heat dissipation LED package according to the embodiment of the present invention, at least one LED unit; A heat dissipation head having the LED unit formed on an upper surface thereof, and a vent hole formed around an edge thereof, and a hollow screw shaft formed on a bottom portion thereof; A heat sink coupled to the screw shaft of the heat radiation head; And a heat dissipation cap accommodated therein while a ventilation hole is formed and coupled to the heat dissipation head.

LED, lamp, heat dissipation, heat conduction, ventilation

Description

Radiant heat type LED package

The present invention relates to an LED lamp having a very low power consumption and a high luminous intensity and a long service life. More specifically, the present invention provides a plurality of heat sinks having excellent thermal conductivity in a stacked form to provide natural air ventilation. It provides good heat ventilation and effectively radiates high heat generated from the LED unit, thus extending the service life of the LED component elements and preventing changes in the characteristics of the components due to high heat, thus maintaining light emission performance and luminance for a long time. Rather, it relates to a heat-dissipating LED package that can produce a high-brightness LED lamp in a small size.

It is known that 70% of the information experienced in everyday life is acquired through vision, and the color of the object perceived through vision plays a big role in human emotions, and humans recall memories of the past through specific colors. In some cases, some emotions are triggered by the person. Therefore, lighting that can determine the color of an object in daily life is very important for human emotion, and lighting is known to directly affect worker's fatigue because lighting environment can change worker's brain waves.

In general, lighting equipment refers to a device for fixing or protecting a light source by reflecting, refracting, or transmitting light of the light source. Such lighting equipment includes indirect lighting, semi-indirect lighting, total diffusion lighting, semi-direct lighting, Direct lighting fixtures may be classified, and lighting fixtures may be classified into incandescent lamps, fluorescent lamps, stands, floodlights, street lamps, and stage lighting lamps according to the purpose of use.

Among the luminaires described above, there is a problem of rapidly defocusing the user's vision due to blurred vision due to the shedding of visible light when emitting light from a conventional incandescent lamp or a fluorescent lamp, and a conventional incandescent lamp has a problem of increasing ambient temperature, Fluorescent lamps have a problem that requires very high power.

Recently, an illumination lamp or a lamp, which is implemented as an LED having various effects as compared to an incandescent lamp or a fluorescent lamp, has been developed and sold. The LED (Light Emitting Diode) refers to a light emitting diode that emits light and emits light of various colors such as red, green, blue, and yellow. In general, a light emitting diode, or LED, has a pn junction structure, and when a forward current is applied to a diode, electrons in the n region of the chip are accelerated by an electric field to move to the p region, and in the p region, an acceptor level or valence band Recombination with the holes emits light with energy corresponding to the potential difference depending on the material of the chip. This phenomenon is called injection type electroluminescence. Such a device is called a light emitting diode (LED).

Such representative LED materials include GaAs, GaAsP, GaP, GaAlAs, SiC, and the like, and exhibit various light emission characteristics from the crystal structure of these materials.

Lamps implemented with LEDs require only about 10% power consumption compared to conventional lamps implemented with incandescent lamps, and require only about 50% power consumption compared to conventional lamps implemented with fluorescent lamps. LED lamps have the advantages of not only minimizing eye fatigue even with long time use, but also having a long service life of about 10 times compared to incandescent lamps and about 8 times longer than fluorescent lamps.

However, the conventional LED lamp is a situation that the heat generated from the LED unit directly affects the luminous performance and lifespan of the LED lamp, because the heat generated from the LED unit is not emitted to the outside and is heated to high temperatures This is because dislocation and mismatch occur in the crystal structure to be formed.

Accordingly, in the related art, techniques for releasing heat generated from the LED unit to the outside have been proposed in various ways, and these conventional techniques generally use a heat sink that maximizes the heat dissipation area to provide a cooling method using ventilation of external air. Mostly.

However, the conventional prior art has a problem in that the heat dissipation area has a limit in increasing the heat dissipation area because the volume of the product increases in proportion to the increase in the heat dissipation area when the heat dissipation plate is widened as much as possible.

The present invention has been made in order to improve the problems according to the prior art of the conventional LED lamp, to extend the service life of the LED component element and to prevent the change of characteristics of the component due to high heat to maintain the luminous performance and brightness of the LED lamp for a long time In addition, many heat sinks with excellent thermal conductivity are installed in a stacked form so that high-brightness LED lamps can be manufactured in a compact form. The main object is to provide a heat dissipation LED package.

The present invention is to realize the desired object as described above,

At least one LED unit; A heat dissipation head having the LED unit formed on an upper surface thereof, and a vent hole formed around an edge thereof, and a hollow screw shaft formed on a bottom portion thereof; A heat sink coupled to the screw shaft of the heat radiation head; And a heat dissipation cap accommodated therein while a ventilation hole is formed and coupled to the heat dissipation head.

In addition, in the preferred embodiment of the present invention, the heat sink is characterized in that a plurality of vent holes are formed and the flange portion coupled to the screw shaft protrudes on either the upper or lower surface.

In addition, in the preferred embodiment of the present invention, the heat sink is characterized in that the coupling is installed in a stacked form on the screw shaft of the heat dissipation head so as to be spaced apart from each other at regular intervals.

According to an embodiment of the present invention, by installing a plurality of heat sinks having excellent thermal conductivity in a stacked form, the ventilation of the outside air is smoothly performed by natural ventilation, thereby effectively radiating high heat generated from the LED unit. It prolongs the service life of component elements and prevents changes in the characteristics of components due to high heat, thereby maintaining the luminous performance and luminance of the LED lamps for a long time and providing the effect of making high brightness LED lamps compact.

The configuration according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7 shown in the drawings.

First of all, the main point in the embodiment of the present invention is to effectively dissipate the high heat generated from the LED unit, thereby prolonging the service life of the LED component elements and preventing the characteristic change of the component due to the high temperature to maintain the luminous performance and luminance of the LED lamp for a long time. In addition, high-brightness LED lamps can be made compact.

Next, looking at the main configuration according to a preferred embodiment of the present invention, at least one LED unit 10; A heat dissipation head 20 in which the LED unit 10 is formed on an upper surface thereof, and a plurality of vent holes 21 are formed around an edge thereof, and a hollow screw shaft 22 is formed in a bottom portion thereof; A plurality of heat sinks 30 coupled to the screw shafts 22 of the heat dissipation head 20; The heat dissipation plate 30 is accommodated therein, while the vent hole 41 is formed, the heat dissipation cap 40 coupled to the heat dissipation head 20;

In addition, the heat sink 30 according to the embodiment of the present invention, a plurality of vent holes 32 are formed, the flange portion 31 coupled to the screw shaft 22 is formed to protrude on either the top or bottom surface. .

In addition, the heat dissipation plate 30 according to the embodiment of the present invention is formed by being coupled to the screw shaft 22 of the heat dissipation head 20 in a stacked form so as to be spaced apart from each other at regular intervals.

In the above main configuration, the LED unit 10 is implemented with at least one, and the circuit board 11 emitting light and the wire 12 for supplying power to the circuit board 11 and the circuit board 11 are coated. And a molding layer protecting the phosphor coating layer, wherein the circuit board 11 is bonded to the insulator 13.

In addition, in the above main configuration, the heat dissipation head 20 may be implemented in a circular or polygonal shape by applying a metal material such as copper alloy having excellent thermal conductivity, as shown in FIGS. A hollow screw shaft 22 formed at the center of the bottom portion and the pores 21, and a screw portion 23 formed at the outer circumference, wherein the insulator 13 is fixed to the center of the upper surface, and at least one LED thereon. Unit 10 is implemented.

In the above, the vent hole 21 is formed to penetrate up and down around the edge of the heat dissipation head 20, and an insulator 13 and an LED unit 10 are disposed at a central position thereof, and a predetermined length is downward from the center of the bottom portion. The screw shaft 22 is formed while the screw shaft 22 has a hollow shape penetrated up and down.

In addition, in the main configuration of the present invention, the heat dissipation plate 30 may be implemented in a circular or polygonal shape by applying a metal material such as copper alloy having excellent thermal conductivity, and a flange portion coupled to the screw shaft 22 of the heat dissipation head 20 ( 31) and a plurality of vent holes 32, wherein the flange portion 31 protrudes from either the top or bottom surface at the center of the heat sink 30, and the vent holes 32 are formed to penetrate up and down. It is formed as a dog.

In the above, the heat dissipation plate 30 is coupled to the screw shaft 22 of the heat dissipation head 20 so as to be spaced apart from each other at regular intervals, and a plurality of heat dissipation plates 30 are screw shafts 22 of the heat dissipation head 20. When coupled to the) is to be installed so as to be spaced apart from each other at regular intervals by the height of the flange portion 31 protruding from any one of the upper surface or the lower surface in the heat sink (30).

Therefore, the plurality of heat sinks 30 are coupled to each other in a stacked form so as to be spaced at regular intervals so that ventilation is smoothly performed on the screw shaft 22 of the heat dissipation head 20 in which the at least one LED unit 10 is implemented.

In addition, in the main configuration of the present invention, the heat dissipation cap 40 has an open top and a closed cylindrical shape, and includes a plurality of vent holes 41 and outlet holes 42, wherein the vent holes 41 are It is preferably formed in plural in the lower surface, the outlet hole 42 is formed in the center of the lower surface.

In the ventilation hole 41 is to allow the air in the inner space to be smoothly ventilated to the outside, the outlet hole 42 is a space for drawing the wire 12 for supplying power to the LED unit 10, the heat dissipation cap ( The wire 12 is connected to the circuit board 11 of the LED unit 10 through the hollow formed in the lead hole 42 of the 40 and the screw shaft 22 of the heat dissipation head 20.

In the above embodiment, a plurality of heat dissipation plates 30 coupled to the screw shaft 22 of the heat dissipation head 20 in a stacked form is accommodated in the heat dissipation cap 40 and formed on an outer circumference of the heat dissipation head 20. The upper end of the heat dissipation cap 40 is fastened to the screw 23 to be assembled.

In the preferred embodiment of the present invention, since power is supplied to the circuit board 11 of the LED unit 10 through the electric wire 12, it is used as a high-brightness lighting lamp by emitting light, which is generated from the LED unit 10. Heat is transferred to the heat dissipation head 20 through the insulator 13, and gradually transferred from the heat dissipation head 20 to the plurality of heat dissipation plates 30 through the screw shaft 22.

The heat transmitted to the plurality of heat sinks 30 is naturally ventilated, and the outside air is smoothly discharged to the outside, and a plurality of vents 21 formed in the heat dissipation head 20 as shown in FIG. Outside air is introduced into the inner space of the heat dissipation cap 40 is installed through the heat dissipation plate 30, the outside air introduced into the inner space of the heat dissipation cap 40, a plurality of vent holes formed in each heat dissipation plate 30 While vented to (32) is discharged to the outside through a plurality of vent holes 41 formed in the heat dissipation cap (40).

Here, the external air introduced into the inner space of the heat dissipation cap 40 in which the plurality of heat dissipation plates 30 are stacked may be introduced through the air vent 21 of the heat dissipation head 20, or the heat dissipation cap ( It may be introduced through the vent hole 41 formed in the 40 and then discharged to the outside through the vent hole 21 of the heat dissipation head 20.

That is, when outside air having a lower temperature than the inside space is introduced into the inside space through the heat dissipation head 20, the outside air is discharged to the heat dissipation cap 40 on the opposite side, and the outside air flows into the inside space through the heat dissipation cap 40. If it is discharged to the heat dissipation head 20 on the opposite side, it may be selectively changed depending on the conditions of the installation place.

When the low temperature outside air flows into the inner space of the heat dissipation cap 40, since a plurality of heat sinks 30 having vent holes 32 are spaced at regular intervals and installed in a stacked form, the outside air is smoothly ventilated while exchanging heat. The heat dissipation plate 30 is cooled by the action, and the external air heated by the heat exchange action is continuously discharged to the outside through the air vent of the heat dissipation cap 40 or the heat dissipation head 20, thereby continuously circulating the LED unit 10. The heat generated from the heat is released to the outside to perform the cooling operation.

In this embodiment of the present invention, since the plurality of heat sinks 30 are installed in the heat dissipation head 20 in a stacked form, it is possible to effectively increase the heat dissipation area even in a narrow space and perform a heat dissipation action. By effectively dissipating the high heat generated from), it lowers the temperature, thus prolonging the service life of the LED component elements and preventing changes in the characteristics of the components due to high heat, which not only maintains the luminous performance and brightness of the LED lamp for a long time, but also makes the LED lamp of high brightness small It can be produced by.

The preferred embodiments of the present invention have been described above with reference to the present invention, but are not limited to the above embodiments, and those skilled in the art to which the present invention pertains through the above embodiments do not depart from the gist of the present invention. Can be implemented in a variety of changes.

1 is an exploded perspective view showing a preferred embodiment of the present invention.

Figure 2 is an assembled perspective view showing a preferred embodiment of the present invention.

Figure 3 is a sectional view showing an installation state in an embodiment of the present invention.

4 is a cross-sectional view showing an operating state in an embodiment of the present invention.

Figure 5 is a perspective view showing the assembled state of the heat dissipation head and the heat sink in the present invention.

Figure 6 is a plan sectional view showing an installation state in an embodiment of the present invention.

7 is a cross-sectional view showing a heat sink in an embodiment of the present invention.

{Description of symbols for main parts of the drawing}

10: LED unit 11: circuit board

12: wire 13: insulator

20: heat dissipation head 21: vent

22: screw shaft 23: screw portion

30: heat sink 31: flange portion

32: vent 40: heat dissipation cap

41: ventilator 42: drawer

Claims (5)

At least one LED unit 10; A heat dissipation head 20 having the LED unit 10 formed on an upper surface thereof, and a vent hole 21 formed around an edge thereof, and a hollow screw shaft 22 formed on a bottom thereof; A heat dissipation plate 30 coupled to the screw shaft 22 of the heat dissipation head 20; The heat dissipation LED package, characterized in that it comprises a; heat dissipation plate 30 is accommodated therein while a vent hole 41 is formed to be coupled to the heat dissipation head (40). The method of claim 1, further comprising: The heat sink 30, A plurality of vent holes 32 are formed, the heat dissipation LED package, characterized in that the flange portion 31 is coupled to the screw shaft 22 protrudes on either the top or bottom. The method of claim 1 or 2; The heat sink 30, Heat dissipation LED package, characterized in that coupled to be installed in a stacked form on the screw shaft (22) of the heat dissipation head 20 at regular intervals. The method of claim 1, further comprising: The heat dissipation LED package, characterized in that the screw portion 23 is formed on the outer periphery of the heat dissipation head 20, the upper end of the heat dissipation cap 40 is fastened to the screw portion 23. The method of claim 1, further comprising: The wire 12 is connected to the circuit board 11 of the LED unit 10 through a hollow formed in the lead hole 42 formed in the center of the heat dissipation cap 40 and the screw shaft 22 of the heat dissipation head 20. Heat dissipation LED package, characterized in that.

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