KR20170138897A

KR20170138897A - LED street lamp having heat dissipation structure

Info

Publication number: KR20170138897A
Application number: KR1020160071343A
Authority: KR
Inventors: 김인수; 이하민; 전건희
Original assignee: 김인수; 전건희; 이하민
Priority date: 2016-06-08
Filing date: 2016-06-08
Publication date: 2017-12-18

Abstract

The present invention relates to a light emitting diode (LED) street lamp with a heat dissipation preventing structure and, more specifically, to an LED street lamp with a heat dissipation preventing structure capable of quickly preventing the dissipation of heat generated from light generated by an LED chip when the LED street lamp which uses an LED as a light source is turned on, by circulating air introduced from the outside, increasing the service life of an LED street lamp, and providing a beautiful exterior. The LED street lamp with a heat dissipation preventing structure introduces more air into the air flow port formed in the street lamp by the difference in air speed generated when external air is introduced using a curved portion formed at an edge of an upper cover. The LED street lamp with a heat dissipation preventing structure comprises a lighting unit (10), a lower panel (20), and an upper cover (30).

Description

{LED street lamp having heat dissipation structure}

[0001] The present invention relates to a light emitting diode (LED) streetlight having a heat prevention structure, and more particularly, to a street light emitting diode (LED) To an LED streetlight having a heat prevention structure that can be quickly discharged by the circulation of air introduced from the outside, and can improve the service life of the LED streetlight and provide a streetlight that is apparently beautiful.

In general, street lights are used for roads and shadows. They are installed for the purpose of illuminating brightly at night to secure the view of pedestrians and cars.

In the past, high-pressure sodium lamps, metal halide lamps, and electrodeless discharge lamps have been used as lamps for street lamps. However, since these lamps have a short life span, they can not be used semi-permanently and they consume relatively much power. Therefore, in order to save energy, LEDs consuming far less power than conventional lighting lamps are emerging as new lights.

That is, LED lamps are very efficient compared to various lighting apparatuses, and are excellent in economical efficiency. Further, since sufficient light quantity can be obtained even at a low voltage, the LED lamps are excellent in stability and are being developed for lighting purposes.

However, since a large amount of LED chips are used in conventional LED lamps, a large amount of heat is generated. Accordingly, a heat dissipation plate of a metal material is provided on a substrate having the LED chip, have.

However, such a natural heat prevention has a limitation in its function, resulting in shortening the lifetime of the LED chip.

Korean Patent Registration No. 10-1309463

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a structure in which outside air can be introduced into a street lamp using an LED chip so that heat generated from the LED chip, LED street lamp having a preventive structure.

Further, according to the present invention, a curved portion is formed at the edge of the upper lid, so that a larger amount of air flows into an air flow hole formed in the inside of the street lamp due to the speed difference of air generated when external air flows, Preventable

An LED streetlight having a heat prevention structure is provided.

In order to solve the above problems, an LED street light having a heat prevention structure according to the present invention includes an illumination unit including an LED chip and a heat prevention plate, a lower panel for installing the illumination unit, And an upper cover which is provided to form the upper cover.

The upper lid is formed with a curved portion formed at an end of the rim with a curved inner surface for changing the speed of air flowing into the air flow port.

In addition, the curved portion forms a slight gap with the lower panel to allow the outside air to flow, and is formed below the edge of the lower panel.

The LED streetlight having the heat prevention structure according to the present invention has a structure in which outside air can be introduced into the street lamp using the LED chip, thereby preventing the heat generated from the LED chip from circulating through the air.

Further, the LED street lamp having the heat prevention structure according to the present invention has curved portions at the edges of the upper lid, so that more air is generated in the air flow holes formed in the inside of the street lamp due to the velocity difference of the air generated when the outside air is introduced There is an effect that more heat can be prevented from being generated.

1 is a diagram according to an example of the present invention;
2 is a cross-sectional view according to an example of the present invention;
3 is a cross-sectional view according to an example of the present invention;

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of functions in the exemplary embodiments of the present invention, and may vary depending on the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a drawing according to an example of the present invention.

The LED street lamp according to the present invention includes an illumination unit 10 having an LED chip 11 and a heat prevention plate 12 and a lower panel 20 for installing the illumination unit 10. [ And the lower panel 20, air flows in from the outside

And an upper cover 30 provided to form an air flow port 40 for exchanging heat with the heat prevention plate 12. [

The illumination unit 10 may include the LED chip 11 for emitting light and the heat prevention plate 12 for preventing heat generated by the LED chip 11 from generating heat. have. The heat prevention plate 12 may be made of aluminum having a high thermal conductivity and a plurality of the heat prevention plates 12 having different heights may be provided at regular intervals to prevent heat generated from the LED chip 11 Respectively. In addition, the heat prevention plate 12 may have a plurality of heat prevention plates 12 having different curvatures depending on the shape of the upper cover 30 formed in a curved shape as described below.

In addition, the heat prevention plate 12 may be formed of silver or copper, which is another material having high thermal conductivity.

The LED chip 11 is attached to a substrate, and the substrate to which the LED chip is attached is installed at a lower portion of the heat prevention plate 12.

The lower panel 20 may be formed in an elliptical shape and may have various shapes,

Of course. Further, the lighting unit 10 may be installed on the lower panel 20, and a power supply unit 60 may be provided.

The upper lid 30 may be provided to be coupled with the lower panel 20 at one side and may be formed in an elliptical shape. The upper lid 30 may be provided to form a gap 50 through which air flows from the outside and the air flow port 40 through which heat can be exchanged with the heat prevention plate 12. In this case, (30) may have a curved surface.

The gap 50 serves as a passage through which the outside air flows into the air flow port 40 and the air in the air flow port 40 is discharged to the outside. Therefore, the upper lid 30 and the lower panel 20 are not completely closed so that external air and the air in the air flow port 40 are circulated and the heat generated from the LED chip 11 is transmitted to the outside Thereby preventing heat generation.

In addition, the upper lid 30 may be formed with a curved portion 31 at the end of the rim. Referring to FIG. 2, the curved portion 31 is formed to bend the inner surface 310 in order to speed up the air flowing into the air flow port 40.

The cross section of the curved portion 31 is in the form of an airfoil 100 and the airfoil 100 is in the form of a side cross section of an airplane wing and is also referred to as a wing bone or an airfoil. 4, the airfoil 100 includes an upper surface 110, a lower surface 120, a front surface 130, and a rear surface 140. The airfoil 100 has an aerodynamic effect to fly the airplane, And the drag force is formed to be small.

The upper surface 110 curved to impart lift to the airplane is the upper surface of the airfoil 100 and the lower surface 120 is the lower surface of the airfoil 100, And is generally defined as a point farthest from the trailing edge 140. [ The trailing edge 140 is also a pointed rear end of the airfoil 100. At this time, the front 130 and the rear 140 correspond to the front and back of the prototype 150, which is a straight line.

The upper surface 110 is curved so that the speed of the air flowing between the upper portion and the lower portion of the airfoil 100 is different. The lower surface 120 is substantially flat and the air speed is slow, The speed of the air flowing in a curved shape becomes faster than that in the lower surface 120. Since the pressure of the upper portion of the airfoil 100 is smaller than that of the lower portion of the airfoil 100, upward force is generated. Therefore, in the case of the airplane wing, the upward pressure acts on the lower part and the upward pressure acts on the upper part. The inner surface 310 corresponds to the upper surface 110 and the outer surface 311 corresponds to the lower surface 120. The curved portion 31 is formed in the shape of the airfoil 100 in cross section. Therefore, the inner surface 310 is formed to be bent from the leading edge 312 of the curved portion 31.

The curved portion 31 having a cross section in the shape of the airfoil 100 touches the curved portion 31 and the flow thereof is divided into the inside and the outside of the curved portion 31. The external air introduced through the gap 50 passes through the protruding portion of the inner side surface 310, and the speed is increased, and the speed of the air passing through the curved portion is maintained. Since the inner side surface 310 is formed to be more curved than the outer side surface 311, the speed of the air flowing inward is faster than the speed of the air flowing to the outside of the curved portion 31. Therefore, the speed of the air flowing into the air flow port 40 is faster than that of the case where the curved portion 31 is not formed, and more air can be introduced during the same time. The flow rate in the sphere 40 is also maintained at a high speed. In this case, the heat exchange rate with the heat prevention plate 12 is also increased, so that more heat exchange can be performed, so that the heat prevention time can be shortened. Outside air flows into the air flow port 40 at a high speed through the gap 50 along the inner side surface 310 formed to be bent. The air flow port 40 is a space in which air can flow from the outside and exchange heat with the heat prevention plate 12. [ The air flowing in from the outside along the inner side surface 310 and having a speed increased flows through the air flow port 40 and exchanges heat with the heat prevention plate 12 and flows into the opposite gap 50 Out. The air introduced at a high speed by the curved portion 31 flows along the curved top cover 30 while maintaining the velocity at the air flow port 40 and performs a heat exchange function.

At this time, a plurality of the heat prevention plates 12 having different heights are arranged in a similar manner to the curved shape of the upper cover 30. In this case, the direction of air flow is naturally induced so that the efficiency of the heat exchange action is enhanced .

The curved portion 31 is formed to form the gap 50 having a predetermined width into which the outside air can flow into the lower panel 20 and the curved portion 31, May be formed in a lower direction than the rim portion so as to cover the rim portion of the lower panel 20. Therefore, rainwater or the like can be prevented from entering the gap 50.

Therefore, in the LED street light having the heat prevention structure of the present invention, heat generated in the LED chip 11 is transmitted to the heat prevention plate 12 to prevent heat generation, The heat generated in the LED chip 11 can be efficiently transmitted to the outside due to the secondary heat generation prevention that passes through the air flow port 40 and performs heat exchange with the heat prevention plate 12 and flows into the gap 50 on the opposite side. The LED streetlight having the heat prevention structure according to the present invention having the above-described structure is constructed as follows.

The lighting unit 10 having the LED chip 11 is installed on the lower panel 20 at a lower portion of the heating prevention plate 12 and the curved portion 31 is formed at the rim The upper cover 30 is covered with the lower panel 20 to form the gap 50 and the air flow port 40. [

The heat generation prevention plate 12 receives heat generated from the LED chip 11 to prevent heat generated by the LED chip 11 from being firstly generated.

The air flowing along the inner side surface 310 of the curved portion 31 and flowing at a higher speed flows through the gap 50 and flows through the air flow port 40, Heat exchange function. The air having a temperature raised due to the heat-bridging action is prevented from flowing out to the outside through the gap 50 on the opposite side of the flow-in side. At this time, since the air having a higher speed is introduced, more heat exchange can be performed in the air flow port 40, and the heat generated from the LED chip 11 can be prevented from being generated more quickly. The upper lid 30 has a curved shape so that the air flowing into the air flow port 40 flows naturally along the curved surface and performs heat exchange with the heat prevention plate 12. The gap 50 ).

The upper lid 30 and the lower panel 20 may be coupled to each other by a hinge 70. The upper lid 30 and the lower panel 20 may be coupled to each other by a hinge 70. In order to fix the upper lid 30 and the lower panel 20, A bolt hole may be formed in the lower panel 20 so as to be fixed by a screw, or a fitting groove and a fitting jaw may be formed and fixed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Substitutions, changes, and alterations without departing from the spirit or scope of the invention.

Brightly lit for visibility of passengers or cars at night

For example. Since the amount of light can be obtained as much as desired even at a low voltage, it is excellent in stability and is being developed for lighting purposes.

10: illumination part 11: LED chip
12: heat prevention plate 20: bottom panel
30: upper cover 31: curved portion
310: inner side 311: outer side
312: leading edge 40: air flow hole 50:
60: power supply unit 70: hinge
100: Airfoil 110: Top surface
120: lower surface 130: front
140: Tiger 150: Protest

Claims

An illumination unit 10 in which the LED chip 11 and the heat prevention plate 12 are arranged,
A lower panel 20 for installing the lighting unit 10,
And an upper cover (30) provided to form an air flow port (40) between the upper cover (30) and the lower panel (20).