KR100944986B1 - Cooling device for led lamp - Google Patents

Abstract

PURPOSE: A device for cooling heat from an AC/DC converter and an LED device using a coolant is provided to prevent resource waste by operating and stopping a coolant pump according to the output signal of a temperature sensor. CONSTITUTION: A coolant pipe(10) is installed on a lamp support plate(2). A coolant supply tank(80) supplies a coolant to a cooling pipe. A coolant pump(20) compulsorily circulates the coolant inside the coolant pipe. A first pipe coupling groove is formed on the rear of an LED lamp(30). The coolant pipe is combined with the first pipe coupling groove. The silicon is coated on the first pipe coupling groove after inserting a first packing into a first packing insertion groove.

Description

LED lighting lamp cooling device {Cooling device for LED lamp}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for a light emitting diode (LED) light. In particular, in the use of an LED lighting light having a light emitting diode (LED) as a light source, it is possible to efficiently cool the high heat generated by the high power of the LED. Spiral cooling tube and cooling water tank are buried in the middle, and the LED lighting lamp is configured to discharge water heated by LED lighting to the outside through the drain pipe while additionally supplying water from the outside through the water supply pipe into the cooling water pipe. Relates to a device.

In addition, including a heat sink and a cooling fan for cooling the heat sink in the cooling water pipe at the position passing through the LED lighting, so as to be made in addition to the water cooling and air cooling.

Sports lights such as baseball and soccer are played at night or a number of lights are installed to illuminate the theater.

Light sources of such a lamp include a white light source and a metal halide lamp.

Such a light source has a problem of consuming a lot of power.

In addition, the conventional lighting has a problem such as a decrease in vision due to the direct viewing of the lighting during the night game by using a white light source of high illumination and high brightness.

In order to solve these problems, a lamp having an LED as a light source has been applied.

However, in the case of a lamp having such an LED as a light source, there is a problem in that a high heat is generated to produce a high output.

The present invention has been made to solve the above problems, the purpose of which is to install a cooling water pipe 10 in the lamp support plate 2, the spiral cooling tube 5 and the cooling water tank (1) underground (4) It is to provide a LED lighting lamp cooling device for lowering the temperature of the cooling water in the cooling water pipe (10) heated by the LED lighting lamp (30).

In addition, while providing water to the cooling water pipe 10 from the outside through the water supply pipe 41 to provide an LED lighting lamp cooling device configured to discharge the water warmed by the LED lighting 30 to the outside through the drain pipe 42. have.

In addition, the heat sink 70 and the blower fan 71 for cooling the heat sink 70 are configured in the cooling water pipe 10 at the position where the LED lighting lamp 30 passes, so that the water cooling and the air cooling are also performed.

In particular, the present invention is to combine the LED lighting lamp 30, the AC-DC converter 60 and the heat sink 70 to the cooling water pipe 10 to form a pipe coupling groove and the packing insertion groove and to apply the silicon 90 Through such to maximize the cooling efficiency.

The LED lighting lamp cooling apparatus of the present invention can be installed in any place (eg, rest area, signboard, etc.) required by the LED lighting lamp 30 as well as a stadium such as a soccer field or baseball field.

LED lighting lamp cooling apparatus according to an embodiment of the present invention in order to achieve the above object is provided with a cooling water pipe 10 to the lamp support plate 2, the cooling water supply tank 80 to supply the cooling water in the cooling water pipe (10) ) And a coolant pump 20 for forced circulation of the coolant, and the coolant pipe 10 may be closely coupled to the rear side of the LED lamp 30 including the LED module 32 having the LED 33. The first pipe coupling groove 11 is configured so that the first packing insertion groove 55 for inserting the ring-shaped first packing 50 into the first pipe coupling groove 11 of the LED light 30 is formed. And the attachment port 52 supporting the LED lighting lamp 30 from the rear, and after the first packing 50 is inserted into the first packing insertion groove 55, the first packing 50 corresponds to the inside of the first packing 50. It is characterized in that the silicon 90 is applied to the first pipe coupling groove (11).

LED lighting lamp cooling apparatus according to another embodiment of the present invention is to install a coolant pipe 10 in the lamp support plate 2, the cooling water supply tank 80 for supplying the cooling water in the cooling water pipe 10 and the cooling water is forced. The first pipe coupling groove is provided with a coolant pump 20 for circulating and allowing the coolant pipe 10 to be tightly coupled to the rear side of the LED lamp 30 including the LED module 32 having the LED 33. The second pipe coupling groove 62 is configured so that the cooling water pipe 10 is tightly coupled to one side of the AC-DC converter 60 which converts AC power into DC power. And a first packing insertion groove 55 for inserting the first packing 50 in a ring shape into the first pipe coupling groove 11 of the LED light 30, and the AC-DC converter 60. A second packing insertion groove 64 for inserting the ring-shaped second packing 63 into the second pipe coupling groove 62, and a first packing insertion groove 55 in the first packing insertion groove 55. After the king 50 is inserted, the silicon 90 is applied to the first pipe coupling groove 11 corresponding to the inside of the first packing 50, and the second packing 63 is inserted into the second packing insertion groove 64. After insertion, the silicon 90 is applied to the second pipe fitting groove 62 corresponding to the inside of the second packing 63, and the second pipe coupling groove 62 portion of the AC-DC converter 60 is Characterized in that configured to be coupled to the rear of the coolant pipe 10 is coupled to the first pipe coupling groove 11 of the LED lighting (30).

In addition, the present invention constitutes a heat sink 70 and a blower fan 71 for cooling the heat sink 70 in the cooling water pipe 10 at the position passing through the LED lamp 30 in the LED lighting lamp cooling device. Divide the heat dissipation plate 70 into a symmetrical structure, and configure the third pipe coupling grooves 75 so that the cooling water pipe 10 may be closely coupled to the bisected heat dissipation plate 70, and the third pipe coupling groove ( A third packing insertion groove 79 for inserting the ring-shaped third packing 73 into 75 is formed, and after the third packing 73 is inserted into the third packing insertion groove 79, the third packing ( It is characterized in that the silicone 90 is applied to the third pipe coupling groove 75 corresponding to the inner side of the 73.

The present invention constitutes a reflecting plate 35 on the inner surface of the LED lighting 30, the reflecting plate 35 is a quadrilateral rod by a combination of four inclined plate so that the reflected light can be diffused forward (四角 錐) Iii) characterized in that it is configured in the form.

In addition, the present invention is installed in the LED lighting lamp cooling apparatus, the water supply pipe 41 for introducing water from the outside to the cooling water pipe 10 at the position before passing through the LED lighting lamp 30, LED lighting lamp 30 Characterized in that the drain pipe 42 for discharging the water warmed by the LED light 30 to the outside in the cooling water pipe 10 of the passing position.

As described above, in the present invention, the coolant pipe 10 is installed on the lamp support plate 2, and the LED lamp 30, the AC-DC converter 60, and the heat sink installed on the outer circumferential surface of the coolant pipe 10 are provided. Pipe coupling grooves and packing insertion grooves are formed on the 70 and silicon 90 is applied to the LED lighting lamp 30 and the AC-DC converter 60 to simultaneously perform water cooling and air cooling to maximize cooling efficiency. can do.

In addition, the water warmed by the LED lamp 30 is discharged to the outside through the drain pipe 42 while the water is supplied from the outside through the water supply pipe 41 into the cooling water pipe 10, the cooling water due to freezing of the cooling water in winter Freezing of the pipe 10 can be prevented.

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

The installation state of the LED lighting lamp cooling apparatus will be described with reference to FIG. 1, and the LED lighting lamp 30 installed in the cooling water pipe 10, the AC-DC converter 60, and the heat sink 70 will be described with reference to FIGS. 2 to 8. This will be described.

1 is an installation of the LED lighting lamp cooling apparatus of the present invention.

In order to proceed with sports games such as baseball or soccer at night, a plurality of LED lights 30 are installed on one side of the stadium. Before the installation of such LED lights 30, the lighting lamp support plate 2 of FIG. 1 is provided. Is installed.

As an example, as shown in FIG. 1, two or more pillar-shaped lamps supporting plates 2 are erected, and a coolant pipe 10 is installed in the lamps supporting plate 2.

In addition, a pipe fixture 3 for fixing the cooling water pipe 10 to the lamp support plate 2 is provided.

The pipe fixture 3 is, for example, in the form of an omega (Ω), and can be fixed to the lamp support plate 2 by screwing.

The cooling water supply tank 80 is provided to supply the cooling water into the cooling water pipe 10. Examples of the cooling water include groundwater and antifreeze.

In the present invention, a cooling water pump 20 for forcibly circulating the cooling water in the cooling water pipe 10 is installed.

In addition, the cooling water pipe 10 is provided with an LED lighting lamp 30 and an AC-DC converter 60 for converting from AC to DC for supplying power to the LED lighting lamp 30. do.

That is, the LED lighting lamp 30 and the AC-DC converter 60 is located between the two lamps supporting the tower 2 in the form of a tower in Figure 1, the LED lighting lamp 30 and the AC-DC converter 60 The generated high heat is cooled by the cooling water flowing in the cooling water pipe 10.

For a detailed description of the structure in which the LED lighting 30 and the AC-DC converter 60 and the like are installed in the cooling water pipe 10, refer to the description of FIGS. 2 to 5 below.

In the present invention, the cooling pipe 5 is embedded in the ground 4.

The cooling pipe 5 is connected to the cooling water pipe 10 and has a structure twisted in a spiral as an example. It is formed in this structure to maximize the contact surface with the soil to maximize the heat loss of the coolant pipe 10 and the coolant.

In one embodiment of the present invention, but the shape of the cooling tube 5 is twisted in a spiral configuration, but is not limited thereto. That is, the shape of the cooling tube 5 can also be designed as a square wave or triangle wave structure. Thus, the shape of the cooling pipe 5 should just be a structure which maximizes the contact surface with soil.

In addition, the ground 4 may be embedded with a coolant tank 1 filled with coolant, which is connected to the cooling tube 5.

 Accordingly, the cooling water heated by the LED lighting 30 is introduced into the cooling water tank 1 to be primarily cooled, and then flows into the cooling pipe 5 to be secondarily cooled.

Looking at the cooling water circulation path in the LED lighting lamp cooling apparatus of the present invention having the above structure, the cooling water in the cooling water supply tank 80 is circulated along the cooling water pipe 10 by the pumping action of the cooling water pump 20 The LED lighting 30 and the AC-DC converter 60 is cooled. The temperature of the coolant passing through the LED lighting 30 and the AC-DC converter 60 in the high temperature state is increased, and the temperature is passed through the cooling tube 5 and / or the coolant tank 1 embedded in the ground 4. It is cooled by the cooling water in the state before the rise.

Meanwhile, in the present invention, the temperature sensor 21 is installed in the coolant pipe 10 at the position passing through the LED lighting 30 or the AC-DC converter 60, and the coolant according to the output signal of the temperature sensor 21. The pump 20 is configured to start / stop.

For example, when the output value of the temperature sensor 21 installed in the cooling water pipe 10 at the position passing through the LED lighting 30 or the AC-DC converter 60 is 30 ° C. or more, the cooling water pump 20 is operated to operate the LED. The lamp 30 or the AC-DC converter 60 is cooled, and when the output value of the temperature sensor 21 is less than 30 ° C, the operating cooling water pump 20 is stopped.

Although not shown, in the present invention, after receiving the output signal of the temperature sensor 21, it is possible to configure a controller for controlling the cooling water pump 20 to start / stop according to the output signal of the temperature sensor 21.

The reference of the output signal of the temperature sensor 21 for starting and stopping the cooling water pump 20 can be arbitrarily set by the user.

As such, by operating / stopping the cooling water pump 20 according to the output signal of the temperature sensor 21, the efficiency of the LED lighting lamp cooling device can be improved and unnecessary waste of resources can be reduced.

In addition, the present invention is provided with a water supply pipe 41 for introducing water from the outside to the cooling water pipe 10 at the position before passing through the LED lighting 30, the cooling water pipe at the position passing through the LED lighting 30 ( 10) may be provided with a drain pipe 42 for discharging the water warmed by the LED light 30 to the outside.

The water flowing through the water supply pipe 41 may be water supplied from a nearby river or the sea, or water supplied through a faucet.

Three-way cock 43 is provided at the connection portion between the water supply pipe 41 and the cooling water pipe 10 and the connection portion between the drain pipe 42 and the cooling water pipe 10. Accordingly, the water introduced through the water supply pipe 41 cools the LED lamp 30 and the AC-DC converter 60 along the cooling water pipe 10 and is discharged through the drain pipe 42 or embedded in the ground 4. It may be configured to flow into the cooling water tank (1).

Next, with reference to Figures 2 to 8 will be described with respect to the shape of the LED lighting 30, AC-DC converter (60) and the heat sink 70 is installed in the cooling water pipe (10).

2A and 2B are separate perspective and combined perspective views of the LED lighting unit 30 of FIG. 1 viewed from the front, and FIGS. 3A and 3B are separate perspective views of the LED lighting unit 30 of FIG. Combined perspective view, Figure 4 is a rear view of the LED lighting (30).

Referring to the drawings, on the outer circumferential surface of the coolant pipe 10 through which the coolant passes, an LED lighting lamp 30 and an attachment hole 52 for supporting the LED lighting lamp 30 are formed.

LED lighting 30 is composed of a lamp case 31, the LED module 32, the protective cover 34 and the reflecting plate 35 and the like.

The lamp case 31 has a hexahedron shape as a whole and is expanded in the rearward direction.

In addition, the rear side of the lamp case 31 is formed with a first pipe coupling groove 11 is coupled to the cooling water pipe 10, the bolt coupling hole 54 for coupling the attachment port 52 and the bolt 53 is It is provided.

The LED module 32 is mounted inside the lamp case 31, and a plurality of LEDs 33 are disposed to emit light forward when the power is supplied.

The protective cover 34 covers the front of the lamp case 31 that is open and is made of a transparent material.

A reflector plate 35 is formed on the inner side of the lamp case 31, and the reflector plate 35 is a quadrangular rod formed by a combination of four inclined plates so that the reflected light can be diffused forward. Form.

The first pipe coupling groove 11 of the LED lighting 30 is configured with a first packing insertion groove 55 for inserting the first packing 50 in a ring shape.

Attachment 52 is the center portion is bent in order to support the LED lamp 30 from the rear and the bolt coupling hole 54 is formed.

According to the present invention, after the first packing 50 is inserted into the first packing insertion groove 55, the silicon 90 is applied to the first pipe coupling groove 11 corresponding to the inside of the first packing 50.

The first packing 50 not only prevents the silicon 90 from leaking to the outside but also serves to maintain a close relationship between the coolant pipe 10 and the LED lighting 30.

Looking at the coupling process, the first packing 50 is inserted into the first packing insertion groove 55 of the first pipe coupling groove 11 of the lamp case 31 and corresponds to the inside of the first packing 50. After the silicon 90 is coated on the first pipe coupling groove 11, the cooling water pipe 10 is coupled to the first pipe coupling groove 11. Subsequently, when the bolts 53 are coupled to each other using the mounting holes 52 at the rear of the LED lighting 30, the same shape as that of FIGS. 2B and 3B is obtained.

Then, the coating portion of the silicon 90 between the LED lighting 30 and the cooling water pipe 10 by the first packing 50 and the silicon 90 is not only in a vacuum state but also heat generated in the LED lighting 30 is Cooling degree (cooling efficiency) is improved by the cooling water flowing in the cooling water pipe (10).

FIG. 5 is an exploded perspective view showing an AC-DC converter 60 instead of the attachment port 52 of the LED lighting 30 of FIG. 2A.

Referring to the drawings, on the outer circumferential surface of the coolant pipe 10 through which the coolant passes, an LED light 30 and an AC-DC converter 60 for coupling the LED light 30 to the rear are formed.

Since the structure of the LED lighting 30 is the same as described above, it will be omitted. The AC-DC converter 60 has the LED lighting 30 at the rear like the attachment port 52 of the LED lighting 30 of FIG. 2A. Not only plays a role of supporting, but also serves to convert from the alternating current (AC) to direct current (DC) for supplying power to the original LED lighting (30).

The AC-DC converter 60 includes an AC-DC converter module (not shown) in which an AC-DC converter circuit is implemented.

One side of the AC-DC converter 60 has the same shape as the rear side of the lamp case 31 of the LED lamp 30. In other words, a second pipe coupling groove 62 is formed at one side of the AC-DC converter 60 so that the cooling water pipe 10 may be tightly coupled to the second pipe coupling groove 62. The second packing insertion groove 64 for inserting the second packing 63 is configured.

In addition, after the second packing 63 is inserted into the second packing insertion groove 64, the silicon 90 is applied to the second pipe coupling groove 62 corresponding to the inside of the second packing 63.

Looking at the coupling process, the first packing 50 is inserted into the first packing insertion groove 55 of the first pipe coupling groove 11 of the lamp case 31 and the second of the AC-DC converter 60. After the second packing 63 is inserted into the second packing insertion groove 64 of the pipe coupling groove 62, the silicon 90 is inserted into the first pipe coupling groove 11 and the second pipe coupling groove 62. Apply. Then, the second pipe coupling groove 62 of the AC-DC converter 60 and the first pipe coupling groove 11 of the LED light 30 are coupled to the cooling water pipe 10 with the cooling water pipe 10 interposed therebetween. Afterwards, the bolt 65 is finally combined.

Then, the first and second packings 50 and 63 and the silicon 90 are coated with the silicon 90 between the LED lighting 30 and the cooling water pipe 10, the AC-DC converter 60 and the cooling water pipe. Not only the coating portion of silicon 90 between the 10 becomes a vacuum state, but also heat generated by the LED lighting 30 and the AC-DC converter 60 can be simultaneously cooled by the cooling water flowing in the cooling water pipe 10. Will be.

Reference numeral 72 is a U-shackle for fixing the cooling water pipe 10 to the lamp back support plate (2).

FIG. 6 is a detailed perspective view of part A of FIG. 1, FIG. 7 is an exploded perspective view of the heat sink 70 of FIG. 6, and FIG. 8 is a partially cutaway perspective view of the heat sink 70 of FIG. 7.

As mentioned above, the heat sink 70 is configured in the cooling water pipe 10 at the position passing through the LED lighting 30, and the blower fan 71 for cooling the heat sink 70 is configured.

The heat dissipation plate 70 is divided into two in a symmetrical structure, and the third heat dissipation plate 70 is configured with a third pipe coupling groove 75 so that the cooling water pipe 10 may be closely coupled.

In addition, each of the third pipe coupling grooves 75 of the divided heat dissipation plate 70 is provided with a third packing insertion groove 79 for inserting the third packing 73 in a ring shape.

After the third packing 73 is inserted into the third packing insertion groove 79, the silicon 90 is applied to the third pipe coupling groove 75 corresponding to the inside of the third packing 73.

Looking at the coupling process, the third packing 73 is inserted into the third packing insertion groove 79 of the third pipe coupling groove 75 of the heat dissipation plate 70 divided into two parts and the third packing 73 as shown in FIG. The silicon 90 is applied to the third pipe coupling groove 75 corresponding to the inner side thereof. Thereafter, the coolant pipe 10 is coupled to the third pipe coupling groove 75 of the heat dissipation plate 70 bisected with the coolant pipe 10 interposed therebetween, and then the bolt 65 is coupled. Finally, when the blower fan 71 is installed, a shape as shown in FIG. 6 is obtained. Reference numeral 76 is a bolt, 77 is a bolted hole, 78 is a nut.

On the other hand, in one embodiment of the present invention when the LED lighting 30 and the mounting hole 52 is formed together on the outer circumferential surface of the cooling water pipe 10, the LED lighting 30 and the AC-DC converter 60 is formed together The reference is made only to the case where the two heat sinks 70 are formed, but the present invention is not limited thereto. That is, the AC-DC converter 60 and the attachment hole 52 are formed together on the outer circumferential surface of the cooling water pipe 10. In this case, there will be a case where the LED lighting 30 or the AC-DC converter 60 and one heat sink 70 are formed together.

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

1 is an installation of the LED lighting lamp cooling apparatus of the present invention,

Figure 2a and Figure 2b is an exploded perspective view and a combined perspective view of the front view of the LED light installation portion of Figure 1,

3a and 3b is an exploded perspective view and a combined perspective view of the LED lighting lamp installation portion of FIG.

4 is a rear view of the LED lighting lamp,

5 is an exploded perspective view showing an AC-DC converter instead of the attachment hole of the LED lighting of FIG. 2A;

6 is a detailed perspective view of part A of FIG. 1;

Figure 7 is an exploded perspective view of the heat sink of Figure 6,

8 is a partially cutaway perspective view of the heat sink of FIG. 7;

<Description of the symbols for the main parts of the drawings>

1: cooling water tank

2: lighting lamp

3: pipe fixture

4: underground

5: cooling tube

10: coolant pipe

11: first pipe coupling groove

20: cooling water pump

21: temperature sensor

30: LED lighting

31: Lamp case

32: LED module

33: LED

34: protective cover

35: reflector

41: water supply pipe

42: drain pipe

43: 3-way cock

50: First Packing

52: attachment hole

53: bolts

54: bolt coupling hole

55: first packing insertion groove

60: AC-DC converter

62: second pipe coupling groove

63: second packing

64: 2nd packing insertion groove

65: bolts

66: bolt coupling hole

70: heat sink

71: blower fan

72: U shackle

73: third packing

75: third pipe coupling groove

76: bolt

77: bolted hole

78: nut

79: third packing insertion groove

80: cooling water supply tank

90: silicone

Claims (6)

In the LED lighting lamp cooling device, Installing a coolant pipe (10) on the lamp support plate (2); A cooling water supply tank (80) for supplying cooling water in the cooling water pipe (10) and a cooling water pump (20) for forcibly circulating the cooling water; The first pipe coupling groove 11 is configured to be closely coupled to the rear side of the LED lighting lamp 30 including the LED module 32 provided with the LED 33; A first packing insertion groove 55 for inserting the ring-shaped first packing 50 into the first pipe coupling groove 11 of the LED lighting 30; In a state in which the cooling water pipe 10 is coupled to the first pipe coupling groove 11 of the LED light 30, and constitutes an attachment port 52 supporting the LED light 30 from the rear; After the first packing 50 is inserted into the first packing insertion groove 55, the silicon 90 is applied to the first pipe coupling groove 11 corresponding to the inside of the first packing (50). Lighting chiller. In the LED lighting lamp cooling device, Installing a coolant pipe (10) on the lamp support plate (2); A cooling water supply tank (80) for supplying cooling water in the cooling water pipe (10) and a cooling water pump (20) for forcibly circulating the cooling water; The first pipe coupling groove 11 is configured to closely couple the cooling water pipe 10 to the rear side of the LED lighting lamp 30 including the LED module 32 having the LED 33; A second pipe coupling groove 62 is configured such that the coolant pipe 10 is tightly coupled to one side of the AC-DC converter 60 for converting AC power into DC power; A first packing insertion groove 55 for inserting the ring-shaped first packing 50 into the first pipe coupling groove 11 of the LED light 30; A second packing insertion groove 64 for inserting the annular second packing 63 into the second pipe coupling groove 62 of the AC-DC converter 60; Inserting the first packing 50 into the first packing insertion groove 55 and then applying silicon 90 to the first pipe coupling groove 11 corresponding to the inside of the first packing 50; Inserting the second packing 63 into the second packing insertion groove 64 and then applying the silicon 90 to the second pipe coupling groove 62 corresponding to the inside of the second packing 63; The second pipe coupling groove 62 portion of the AC-DC converter 60 is configured to be coupled to the rear of the coolant pipe 10 coupled to the first pipe coupling groove 11 of the LED light 30. LED lighting lamp cooling system. The method according to claim 1 or 2, A heat sink 70 and a blowing fan 71 for cooling the heat sink 70 in the cooling water pipe 10 at the position passing through the LED lighting lamp 30; The heat sink 70 is bisected in a symmetrical structure, each of which constitutes a third pipe coupling groove 75 so that the cooling water pipe 10 may be closely coupled to the divided heat sink 70. A third packing insertion groove 79 for inserting the annular third packing 73 into the third pipe coupling groove 75; After inserting the third packing 73 into the third packing insertion groove (79), LED 90, characterized in that to apply the silicon 90 to the third pipe coupling groove 75 corresponding to the inside of the third packing (73). Lighting chiller. The method according to claim 1 or 2, A reflective plate 35 is formed on the inner side of the LED lighting 30, but the reflective plate 35 has a quadrangular shape by a combination of four inclined plates so that the reflected light can be diffused forward. LED lighting lamp cooling device, characterized in that consisting of. The method according to claim 1 or 2, A water supply pipe 41 for introducing water from the outside into the cooling water pipe 10 at the position before passing the LED lighting 30; LED lighting lamp cooling device, characterized in that to install a drain pipe (42) for discharging the water warmed by the LED lighting lamp (30) to the outside in the cooling water pipe (10) passing through the LED lighting lamp (30). The method according to claim 3, A water supply pipe 41 for introducing water from the outside into the cooling water pipe 10 at the position before passing the LED lighting 30; LED lighting lamp cooling device, characterized in that to install a drain pipe (42) for discharging the water warmed by the LED lighting lamp (30) to the outside in the cooling water pipe (10) passing through the LED lighting lamp (30).

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