WO2011111958A2

WO2011111958A2 - Cooling apparatus for an led lamp

Info

Publication number: WO2011111958A2
Application number: PCT/KR2011/001534
Authority: WO
Inventors: 이주동
Original assignee: (주)다이스콤
Priority date: 2010-03-08
Filing date: 2011-03-07
Publication date: 2011-09-15
Also published as: KR101020063B1; WO2011111958A3

Abstract

The present invention relates to a cooling apparatus for a light-emitting diode (LED) lamp that uses light-emitting diodes as a light source. The cooling apparatus is configured such that an LED module mounting unit extends in a lengthwise direction within the LED lamp, a plurality of heat pipes are arranged between an LED module and the LED module mounting unit such that the heat pipes are vertical to the LED module mounting unit, and a pipe coupling groove for coupling a coolant pipe is formed at the rear side of the LED lamp, thereby quickly transferring heat generated by the LED lamp to the coolant pipe through the heat pipes, and thus cooling the LED lamp in the quickest possible way.

Description

[Revision 12.05.2011 by Rule 26] 규칙 LED Lighting Lamp Cooling System

The present invention relates to an LED lamp cooling apparatus, and more particularly to an LED lamp cooling apparatus that can efficiently cool the high heat generated by the high power of the LED in the use of the LED lighting lamp as a light emitting diode (LED) as a light source. .

Today, with the development of electric / electronic technology, various electrically stable light emitting devices have been developed, and a representative light emitting device is a light emitting diode (LED).

The light emitting diode (LED) is one of the solid state light emitting display devices, and may be applied to various fields as well as a monochromatic LED that generates light of three primary colors of light (R), green (G), and blue (B). White light LEDs have been developed.

The application field of the LED is gradually being used as a next-generation lighting equipment that can replace incandescent bulbs, fluorescent lamps, street lights, as well as a light emitting source for the backlight of the display in a general display device.

Lighting fixtures using LEDs (hereinafter referred to as LED lamps), for example, LED streetlights, unlike ordinary fluorescent streetlights, has a simple lighting circuit, does not require inverter circuits and iron ballasts, and consumes less power and has a longer lifetime. Because of the long, it has the advantage of low maintenance and repair costs.

However, the disadvantages of such LED street light is that the characteristics deterioration and failure due to thermal stress occurs.

This is because the higher the power input to the plurality of LEDs to operate the LED, the more heat is generated, causing failure and deterioration of characteristics.

There is a need for an LED lamp cooling device capable of cooling the LED lamps that generate such high heat as quickly as possible.

The present invention has been made to solve the above problems, the object of which is to use an LED lamp as a light source as a light emitting diode (LED), to efficiently cool the high heat generated by the high power of the LED In order to configure the LED module seating portion in the longitudinal direction inside the LED lamp, and to arrange a plurality of heat pipes between the LED module and the LED module seating portion, the heat pipe is disposed in a vertical direction with the LED module seating portion, By providing a pipe coupling groove for fastening the cooling water pipe on the rear side of the lamp, to provide an LED lamp cooling device configured to transfer heat generated from the LED lamp to the coolant pipe within a short time through the heat pipe.

In addition, the present invention is to provide an LED lighting lamp cooling device to insert a heat sink made of aluminum between the heat pipe and the LED module mounting portion to further improve the cooling efficiency.

In addition, the present invention is to provide an LED lamp cooling device configured to cool the heat generated from the AC-DC converter by configuring an AC-DC converter inside the lamp case.

In particular, the present invention is to provide an LED lamp cooling device that can maximize the cooling efficiency by applying a silicone coating to the pipe coupling groove, or attaching a heat radiation tape in coupling the LED lamp to the cooling water pipe.

LED lighting lamp cooling apparatus of the present invention can be installed in all places (such as rest areas, signboards, etc.) that the LED lights, such as stadiums such as football or baseball field that is operated on a large scale, as well as street lamps or lights operated on a small scale.

In order to achieve the above object, the present invention in the LED lamp cooling apparatus for cooling the heat emitted from the LED lamp 100 including the LED module 120 provided with the LED 121, of the LED lamp 100 The LED module seating unit 130 for seating the LED module 120 is configured to be long in the longitudinal direction, and a plurality of heat pipes 400 are disposed between the LED module 120 and the LED module seating unit 130. The heat pipe 400 is disposed in a vertical direction with the LED module seating unit 130, and the pipe coupling groove 111 is configured to closely couple the cooling water pipe 1 to the rear side of the LED lamp 100. ) And in a state in which the coolant pipe 1 is coupled to the pipe coupling groove 111 of the LED lamp 100 to prevent the coolant pipe 1 from being separated from the pipe coupling groove 111. It is characterized by configuring a separation prevention means.

The detachment preventing means includes a fastening bolt 140 penetrating rearward from the inside of the LED lamp (100); An attachment hole 300 coupled to the rear of the LED lamp 100 in a state in which the cooling water pipe 1 is coupled to the pipe coupling groove 111 of the LED lamp 100; And a nut 141 coupled to the fastening bolt 140, wherein the LED lamp 100 and the attachment port 300 are closely attached to the outer circumferential surface of the cooling water pipe 1.

In addition, the present invention comprises a packing insertion groove 210 for inserting the ring-shaped packing 200 in the pipe coupling groove 111 of the LED lamp 100, packing (in the packing insertion groove 210) ( After inserting the 200, it is characterized in that to apply the silicon or heat radiation tape to the pipe coupling groove 111 corresponding to the inside of the packing 200.

In addition, the present invention is characterized in that the heat sink 500 is inserted between the heat pipe 400 and the LED module seat 130.

The LED lamp 100 has a hexahedral shape as a whole, the front of the lamp case 110, the LED module seating portion 130 protruded forward to seat the LED module 120 in the interior of the lamp case 110. To be seated on the LED module seating unit 130, a plurality of LEDs 121 are arranged to emit light to the front when the power supply, the LED module 120, and the front of the open lamp case 110 is opened. To cover, characterized in that comprises a protective cover made of a transparent material.

The LED lamp 100 is formed on the inner surface of the lamp case 110, the reflected light is diffused forward (

And iii) further configuring a reflector to enable it.

Inside the lamp case 110 is characterized in that the AC-DC converter 150 for converting AC (AC) to direct current (DC) is configured.

The LED lamp 100 is characterized in that it is configured in a collecting light or LED street light.

LED lighting device cooling device of the present invention is configured to the LED module mounting portion in the longitudinal direction in the interior of the LED lamp, and arranged a plurality of heat pipes between the LED module and the LED module seating portion, the heat pipe and the LED module seating portion Arranged in the vertical direction and forming a pipe coupling groove for fastening the coolant pipe on the rear side of the LED lamp, the heat generated from the LED lamp is transferred to the coolant pipe through the heat pipe in a short time, so that the LED lamp is turned on as soon as possible. Can be cooled.

In addition, the present invention can further improve the cooling efficiency of the LED lighting by inserting the heat sink of the aluminum material between the heat pipe and the LED module mounting portion.

In addition, the present invention configures the AC-DC converter inside the lamp case, it is also possible to cool the heat generated by the AC-DC converter.

Particularly, in the present invention, when the LED lighting lamp is coupled to the cooling water pipe, it is possible to maximize the cooling efficiency by applying silicon to the pipe coupling groove or by attaching a heat dissipation tape.

1 and 2 is an exploded perspective view of the LED lighting lamp cooling apparatus according to an embodiment of the present invention viewed from the front.

Figure 3 is a perspective view of the LED illumination lamp cooling apparatus according to an embodiment of the present invention viewed from the front.

4 and 5 is an exploded perspective view and a combined perspective view of the LED lighting lamp cooling apparatus according to an embodiment of the present invention from the rear.

Figure 6 is a cut perspective view of the heat pipe of the present invention.

Figure 7 is an exploded perspective view of the LED lighting lamp cooling apparatus according to another embodiment of the present invention.

8 is a view showing a state in which the LED lamp of the present invention is installed on the LED street light.

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

1 and 2 is an exploded perspective view of the LED lamp cooling apparatus according to an embodiment of the present invention viewed from the front, Figure 3 is a combined perspective view of the LED lamp cooling apparatus according to an embodiment of the present invention from the front, FIG. 4 and 5 is an exploded perspective view and a combined perspective view of the LED lighting lamp cooling apparatus according to an embodiment of the present invention viewed from the rear. 6 is a cutaway perspective view of the heat pipe of the present invention.

First, the cooling water pipe 1 will be described. The pipe 12 has a hollow portion 12 formed therein with a predetermined length.

Both ends of the cooling water pipe 1 may be configured to be sealed, but may be connected to allow the refrigerant inside to circulate.

In addition, the material of the cooling water pipe 1 may be aluminum, copper, iron or the like, but is preferably used as a stainless material in view of the life, durability and tensile strength.

As the coolant, a coolant, a coolant, an antifreeze, or a liquid may be used, or a gaseous cooling gas or the like may be used.

1 to 5, the present invention is an LED lamp 100 is formed on one outer peripheral surface of the coolant pipe 1, the other outer peripheral surface of the coolant pipe 1 to support the LED lamp 100 from the rear The attachment hole 300 is formed.

The LED lamp 100 is configured to include a lamp case 110, LED module seat 130 and the LED module 120.

The lamp case 110 has a long hexahedron shape in the longitudinal direction as a whole, the front is open, and the interior is empty. The empty part is provided with the LED module 120 and the like.

In addition, an AC-DC converter 150 for converting alternating current (AC) into direct current (DC) may be configured inside the lamp case 110.

In addition, the rear side of the lamp case 110, the pipe coupling groove 111 is configured so that the cooling water pipe 1 is in close contact.

The pipe coupling groove 111 may be formed at the center of the rear side of the lamp case 110, but may be formed at a position slightly away from the center of the rear side of the lamp case 110 as shown in the drawing.

The LED module seating unit 130 has a structure formed to protrude forward from the inside of the lamp case 110, the LED module 120 is seated on the protruding portion.

LED module seating portion 130 is formed long in the longitudinal direction of the lamp case 110, that is, the pipe longitudinal direction, the upper portion is formed flat.

In addition, the LED module seating unit 130 is preferably installed in the closest position to the pipe coupling groove 111.

The LED module 120 is seated on the LED module seating unit 130, and a plurality of LEDs 121 are disposed to emit light forward when the power is supplied.

In addition, the LED lamp 100 of the present invention may further include a protective cover and a reflecting plate.

The protective cover covers the front of the lamp case 110 that is open and is made of a transparent material.

The reflector is formed on the inner surface of the lamp case 110 so that the reflected light is diffused forward (

Iv) to be made.

The present invention provides a separation prevention means for preventing the coolant pipe 1 from being separated from the pipe coupling groove 111 in a state in which the cooling water pipe 1 is coupled to the pipe coupling groove 111 of the LED lamp 100. Configure.

The detachment preventing means is, for example, a state in which the fastening bolt 140 penetrated rearward from the inside of the LED lamp 100 and the cooling water pipe 1 coupled to the pipe coupling groove 111 of the LED lamp 100. In, it is configured to include an attachment hole 300 is coupled to the rear of the LED lamp 100 and the nut 141 is coupled to the fastening bolt 140.

The attachment hole 300 has a central portion bent and both edges are flat.

A flat portion of the attachment hole 300 is formed with a bolt coupling hole 310, through which the attachment hole 300 is coupled to the fastening bolt 140. Then, when tightened using the nut 141, LED lighting, etc. are closely formed on one outer peripheral surface of the cooling water pipe 1 based on the cooling water pipe 1, and the attachment hole 300 is closely attached to the other outer peripheral surface of the cooling water pipe 1. Is formed.

The present invention is a packing insertion groove 210 for inserting the ring-shaped packing 200 in the pipe coupling groove 111 of the LED lamp 100 is configured.

After the packing 200 is inserted into the packing insertion groove 210, silicon is applied to the pipe coupling groove 111 corresponding to the inside of the packing 200 or a heat dissipation tape is attached. This is to ensure good heat transfer.

The packing 200 not only prevents the silicon from leaking to the outside, but also serves to maintain a close relationship between the coolant pipe 1 and the LED lamp 100.

Looking at the coupling process, after inserting the packing 200 into the packing insertion groove 210 formed in the pipe coupling groove 111 and applying the silicon to the pipe coupling groove 111 corresponding to the inside of the packing 200, The coolant pipe 1 is coupled to the pipe coupling groove 111. Then, after fastening to the fastening bolt 140 by using the mounting holes 300 in the rear of the LED lamp 100, when the nut 141 is coupled to form the same as in Figs.

Then, the silicon coating portion between the LED lamp 100 and the coolant pipe 1 by the packing 200 and the silicon becomes a vacuum state, and the heat generated from the LED lamp 100 is a refrigerant located in the coolant pipe 1. Is cooled.

Meanwhile, in the present invention, a plurality of heat pipes 400 are disposed between the LED module 120 and the LED module seating unit 130, and the heat pipe 400 is perpendicular to the LED module seating unit 130. Configure. That is, a plurality of heat pipes 400 are disposed on an upper surface of the LED module seating unit 130 in a direction perpendicular to the LED module seating unit 130, and an LED is disposed on the upper side of the heat pipe 400. Module 120 is disposed.

The heat pipe 400 has a hollow structure and both sides are sealed, and the heat pipe 400 is made of a material having excellent heat transfer.

In an embodiment of the present invention, after connecting the plurality of heat pipes 400 in series, the both ends are configured to be sealed. (See FIG. 6).

In addition, in an embodiment of the present invention, a plurality of heat pipes 400 having the above structure are arranged at regular intervals.

The heat pipe 400 transfers heat by using latent heat (潛熱) that is accompanied when the working fluid 410 circulating in the closed vacuum space therein continuously undergoes phase change (evaporation and condensation) of the liquid-vapor period. By doing so, it exhibits breakthrough performance compared to a conventional heat transfer device using the single-phase working fluid 410.

The heat pipe 400 may be made of, for example, copper, gold, aluminum, platinum, or the like.

As described above, the present invention arranges a plurality of heat pipes 400 in the vertical direction on the upper part of the LED module seating unit 130, and the LED module 120 is located above the heat pipes 400. In the arranged state, the coolant pipe 1 filled with the refrigerant is coupled to the pipe coupling groove 111 of the LED lamp 100, and the LED lamp 100 is connected to the coolant pipe 1 by using the attachment hole 300. To be fixed. In addition, the present invention configured the AC-DC converter 150 inside the lamp case 110.

In this state, when the LED lamp 100 is turned on, heat is generated in the LED module 120 and the AC-DC converter 150 of the LED lamp 100. This heat is transferred to the heat pipe 400.

Since the heat pipe 400 has a uniform heat distribution in its entirety, the generated heat is transferred to the coolant pipe 1 through the LED module seating unit 130 located at the center of the heat pipe 400, thereby cooling water. Cooled by the refrigerant in pipe 1

Most of the heat is cooled in the refrigerant, and some of the heat dissipation through the coolant pipe (1).

As such, since the thermal cooling is mainly performed through the coolant pipe 1, the heat transferred to both edges of the heat pipe 400 quickly moves to the center portion of the heat pipe 400.

In an embodiment of the present invention, instead of the heat pipe 400, a rod-shaped metal member may be used.

In addition, the metal member may be formed of a metal having excellent thermal conductivity, for example, a metal such as aluminum (Al), gold (Au), silver (Ag), copper (Cu), or the like.

Figure 7 is a separate perspective view of the LED lighting lamp cooling apparatus according to another embodiment of the present invention, in addition to inserting a heat sink 500 of aluminum material between the heat pipe 400 and the

LED module seat

130, 1 to 5 has the configuration as shown.

The heat sink 500 is located directly above the LED module seating portion, and is provided to improve the heat transfer rate from the LED module 120 to the coolant pipe 1.

The heat sink 500 also performs a function of transferring heat generated from the AC-DC converter 150 toward the cooling water pipe 1.

8 is a view showing a state in which the LED lamp 100 of the present invention is installed on the LED street light (10).

As shown in the figure, the LED street light 10 is a strut 11 that rises perpendicularly to the ground, a coolant pipe 1 extending substantially parallel to the ground on the top of the strut 11, and the coolant pipe 1 LED lighting lamp 100 located at one end of the, and the heat sink 12 and the like located at the other end of the coolant pipe (1).

The cooling water pipe 1 may be manufactured to be bent in the form as shown in the figure.

LED lamp 100 is a plurality of LEDs 121 is emitted based on the external power supplied to the LED module 120 is supplied, the lower side of the LED lamp 100 is a transparent protective cover that can transmit light Is covered, the upper portion is covered with the attachment hole 300 to seal the inside of the LED lamp 100 to prevent foreign substances (eg, dust, water, etc.) from penetrating from the outside.

Most of the heat generated by the LED lamp 100 is cooled by the refrigerant in the cooling water pipe 1, but by further providing the heat sink 12 of the present invention can be cooled more quickly.

LED lighting lamp cooling apparatus of the present invention can be installed in any place (eg, rest area, signage, etc.) that the LED lighting lamp 100, such as stadiums such as football stadiums or baseball stadiums that are operated on a large scale, as well as street lamps or lights operated in a small scale. have.

As described above, with reference to the preferred embodiment of the present invention, those skilled in the art will be variously modified and modified within the scope of the present invention without departing from the spirit and scope of the present invention described in the claims below. It will be appreciated that it can be changed.

The present invention can be used in the field of LED lighting.

Claims

In the LED lamp cooling apparatus for cooling the heat emitted from the LED lamp 100 including the LED module 120 having the LED 121,

An LED module seating unit 130 for mounting the LED module 120 inside the LED lamp 100 is configured;

Arranging a plurality of heat pipes (400) between the LED module (120) and the LED module seating unit (130), wherein the heat pipe (400) is configured to be perpendicular to the LED module seating unit (130);

A pipe coupling groove 111 is configured to allow the cooling water pipe 1 to be closely coupled to the rear side of the LED lamp 100;

In the state in which the cooling water pipe 1 is coupled to the pipe coupling groove 111 of the LED lamp 100, a separation preventing means for preventing the cooling water pipe 1 from being separated from the pipe coupling groove 111 is configured. To;

The LED module seating unit 130 is installed in the pipe coupling groove 111 and the cooling water pipe 1 in the longitudinal direction, and heat generated from the LED module 120 is coupled to the pipe coupling groove 111 with the cooling water pipe ( Configured to be cooled by the cooling water in 1);

The LED module seating portion 130 from the inside of the lamp case 110 to the front LED lighting lamp cooling device, characterized in that configured to protrude.
The method according to claim 1,

The detachment preventing means includes a fastening bolt 140 penetrating rearward from the inside of the LED lamp (100);

An attachment hole 300 coupled to the rear of the LED lamp 100 in a state in which the cooling water pipe 1 is coupled to the pipe coupling groove 111 of the LED lamp 100; And

Including a nut 141 coupled to the fastening bolt 140,

LED lighting lamp cooling device characterized in that the LED lighting lamp 100 and the attachment port 300 is in close contact with the outer peripheral surface of the cooling water pipe (1).
The method according to claim 1,

A packing insertion groove 210 for inserting the annular packing 200 into the pipe coupling groove 111 of the LED lamp 100;

After inserting the packing 200 into the packing insertion groove 210, LED lighting lamp cooling device, characterized in that to apply a silicone coating or heat radiation tape to the pipe coupling groove 111 corresponding to the inside of the packing 200. .
The method according to claim 1,

LED lighting lamp cooling device, characterized in that the heat pipe 400 and the heat sink 500 of the aluminum material is inserted between the heat pipe 400 and the LED module mounting portion 130.
The method according to claim 1,

The LED lamp 100 is a hexahedral shape as a whole and the front is open, the lamp case 110, the LED module seating portion 130 is configured on the inside;

It is seated on the LED module seating unit 130, the LED module 120 is disposed to emit light to the front when the power supply is disposed; And

LED lighting lamp cooling device to cover the front of the open lamp case 110, including a protective cover made of a transparent material.
The method according to claim 5,

The LED lamp 100 is formed on the inner surface of the lamp case 110, the reflected light is diffused forward (
Iii) LED lighting lamp cooling device further comprises a reflector so that it can be.
The method according to claim 1,

LED lighting unit cooling unit, characterized in that the central portion of the heat pipe 400 is configured to be located at the intersection of the LED module seating portion 130 and the heat pipe (400).
The method according to claim 1,

The heat pipe (400) after connecting a plurality of heat pipes in series in parallel, LED lighting lamp cooling apparatus, characterized in that the both ends are configured to be sealed.