KR20110004002A - Light emitting diode illuminator having liquid radiation structure - Google Patents

Abstract

PURPOSE: A light emitting diode illuminator having a liquid radiation structure is provided to improve heat dissipation efficiency by using heat dissipation efficiency. CONSTITUTION: A lighting apparatus(10) has a liquid radiation structure which is comprised of a main body(20), an LED module(30), and an accommodation space(50). The light-emitting diode module is installed in the main body. The light-emitting diode module comprises at least one LED. The light-emitting diode radiates light. The accommodation space is formed with a lid(60). The accommodation space circulates liquid by heat.

Description

Lighting fixture with liquid heat dissipation structure {LIGHT EMITTING DIODE ILLUMINATOR HAVING LIQUID RADIATION STRUCTURE}

The present invention relates to a luminaire having a liquid heat dissipation structure, and more particularly, to discharge heat generated from the LED module to the outside by using the convection of the liquid stored in the accommodating space portion of the back of the main body to increase the heat dissipation efficiency The present invention relates to a luminaire having a liquid heat dissipation structure.

Lighting equipment has become a catalyst for revolutionizing the development of human civilization as a tool that enables users to identify objects even in the dark by converting electrical energy into light energy by receiving power.

These tools are used in various forms, and although the first incandescent bulbs generate more heat than light, they can be manufactured inexpensively, but they have recently been used.

The improvement of this shortcoming is the fluorescent lamp, which has the advantage of saving energy because the ratio of converting electrical energy to light energy is larger than a light bulb, but it takes a long time to turn on and its life is short. A fluorescent (luminescent) material was applied to convert ultraviolet light into visible light to emit light, but a new light emitting device was required due to the high cost of the fluorescent material.

It was developed to cope with the light fixture using LED (Light emitting diode), although the manufacturing cost is still economical, but the high life with a small power and its life is more than three years without special repair for one-time use As a result of its long length, it is preferred as a light source for future lighting equipment.

In recent years, LED lighting fixtures have tended to increase in number due to various advantages, but in general, about 80% of energy is converted into heat, and the back of the LED module composed of the LED and the substrate on which the LED is installed. High temperature heat is generated.

As described above, the LED lighting device needs to have a heat dissipation structure for efficiently dissipating heat in the design structure.

By the way, in the conventional LED lighting fixtures, in particular, when using the high-output LED module, since the circuit board on which the AD module is installed is mainly installed in contact with the wall, high temperature heat is generated on the back of the LED, and properly There is a problem that the fire is not generated due to the heat generated by the heat emission, or the life of the LED element is reduced due to the high temperature heat and the amount of light is reduced.

Thus, there is a need for improvement.

It is an object of the present invention to provide a lighting device having a liquid heat dissipation structure that increases heat dissipation efficiency because heat generated by the LED module is discharged to the outside by using convection of the liquid stored in the accommodating space on the rear surface of the main body.

In addition, an object of the present invention is to provide a luminaire having a liquid heat dissipation structure to further enhance the heat dissipation effect by providing a heat dissipation protrusion inside the accommodating space portion in which the liquid for cooling is stored.

In addition, the present invention, by using the blocking member and the sealing member coupled by the fastening means on both sides of the heat dissipation space portion, the injection of the liquid, and additionally filling the light fixture having a liquid heat dissipation structure to improve the workability The purpose is to provide.

In order to achieve the above object, a lighting device having a liquid radiating structure according to an embodiment of the present invention, the main body; An LED module installed in the main body and provided with one or more LEDs to irradiate light; And an accommodating space part formed by a cover unit integrated to store the liquid on the outside of the main body, and circulating the heat with heat generated by the LED module to dissipate the heat.

In addition, the main body is characterized in that it is formed of a long bar type including a bottom portion in which the LED module is placed, and a pair of side portions bent from both sides of the bottom portion.

In addition, the side of the side portion is characterized in that the locking step portion is formed that the substrate of the LED module is fitted.

The main body may further include a light transmitting member for guiding light emitted from the LED and protecting the LED module, wherein the light transmitting member is slide-assembled into a guide groove recessed inside the main body. It features.

In addition, the LED module and the light transmitting member is further provided with a blocking member fixed to both sides in the longitudinal direction of the main body to prevent the departure from the main body.

In addition, the cover part according to the first embodiment of the present invention is characterized in that the receiving space is formed to surround the back of the main body to guide the heat generated from the back of the LED module.

The receiving space portion is formed so that at least one side in the longitudinal direction, characterized in that the cover member is fixed to the side of the cover portion to further block the receiving space portion is further provided.

Between the cover member and the cover portion, characterized in that the sealing member is further provided to prevent the leakage of the liquid.

In addition, the sealing member is characterized in that it is installed in the mounting groove formed in the side of the cover portion.

In addition, the cover portion according to the second embodiment of the present invention, characterized in that to form the receiving space surrounding the entire outer surface of the body to guide the heat generated from the back of the LED module.

In addition, the receiving space portion is formed so that both sides open in the longitudinal direction, characterized in that the cover member is further provided to be fixed to the side of the cover portion to block the receiving space portion.

In addition, a sealing member is further provided between the cover member and the cover part to prevent leakage of the liquid.

In addition, the sealing member is characterized in that it is installed in the mounting groove formed in the side of the cover portion.

In addition, the inside of the receiving space is formed, the heat dissipation protrusion is further provided on the outer surface of the main body to assist the heat dissipation.

In addition, the liquid is characterized in that the mixed solution of 20 to 40% by weight of propylene glycol relative to 100% by weight of water.

In addition, the liquid is characterized in that it further comprises a corrosion inhibitor.

As described above, the luminaire having a liquid heat dissipation structure according to the present invention increases heat dissipation efficiency by discharging the heat generated by the LED module to the outside by using the convection phenomenon of the liquid stored in the accommodating space on the back of the main body. .

In addition, the lighting device having a liquid heat dissipation structure according to the present invention has a heat dissipation protrusion inside the accommodating space portion in which the liquid for cooling is stored, so that heat transfer is performed well, thereby further enhancing the heat dissipation effect.

In addition, the luminaire having a liquid heat dissipation structure according to the present invention, by using the blocking member and the sealing member coupled by the fastening means on both sides of the heat dissipation space, it is easy to inject the liquid and additional filling, so workability Improve.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

Hereinafter, with reference to the accompanying drawings will be described the configuration of a lighting device having a liquid radiating structure according to a first embodiment of the present invention.

1 is an exploded perspective view of an LED lighting device having a liquid heat dissipation structure according to a first embodiment of the present invention, Figure 2 is an assembled perspective view of the LED lighting device having a liquid heat dissipation structure according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the assembled state of the LED lighting apparatus having a liquid heat dissipation structure according to an embodiment of the present invention, Figure 4 is a cross-sectional view taken along line AA of 3.

1 to 4, the lighting device 10 having a liquid heat dissipation structure according to an embodiment of the present invention, the main body 20; An LED module 30 installed in the main body 20 and provided with one or more LEDs 32 to irradiate light; And an accommodating space part formed by a cover part 60 integrated with the liquid 80 to be stored outside the main body 20 and circulating and dissipating the liquid 80 with heat generated by the LED module 30 ( 50).

The main body 20 is a long bar type including a bottom portion 22 on which the LED module 30 is placed and a pair of side portions 24 bent at both sides of the bottom portion 22. Is formed.

The main body 20 and the lid part 60 are integrally formed in a bar shape by extrusion or injection, and most preferably by extrusion.

Of course, the present invention is not limited thereto, and the main body 20 and the cover part 60 may be separately manufactured by extrusion or injection and other methods to be integrally combined by welding or other assembly methods.

The main body 20 and the cover portion 60 is made of a metal material, it is preferable to apply aluminum excellent in heat transfer properties of the metal material.

A locking jaw portion 28 into which the substrate 34 of the LED module 30 is fitted is formed inside the side portion 24.

The main body 20 is further provided with a light transmitting member 45 for guiding the light irradiated from the LED 32 and protecting the LED module 30.

Other light sources may be used instead of the LEDs 32, and it is preferable to use high brightness LEDs in the LEDs 32.

The light transmitting member 45 is slide-assembled into the guide groove 26 recessed inside the main body 20. The light transmissive member 45 is a transparent material, and is selected from synthetic resin materials or glass.

The LED module 30 and the light transmitting member 45 are further provided with a blocking member 40 fixed to both sides in the longitudinal direction of the main body 20 to prevent the main body 20 from being separated.

The blocking member 40 is coupled to the main body 20 by fastening means 42 such as a bolt or a screw which is fitted into the through hole and fastened to a screw hole formed at one side of the main body 20.

The cover part 60 surrounds the back surface of the main body 20 so as to guide the heat generated from the back surface of the LED module 30 to form the accommodation space 50.

As shown in FIG. 3, the cover portion 60 has a stepped angle T with respect to the bottom portion 22 of the main body 20 so that the cross-sectional shape is rectangular in the downward direction of the bottom portion 22 so that the width thereof is narrowed. It is preferable that it is formed in a shape.

Of course, the cross-sectional shape of the cover portion 60 may be formed on the rear surface of the main body 20 in the state having the accommodating space 50 therein in a circular shape or other polygonal shape in addition to the quadrangular shape, the cover portion 60 ) May be formed to be equal to the width of the main body 20 without the step T being formed.

And, as shown in Figure 4, the cover portion 50 is preferably formed to be slightly short in length with respect to the longitudinal direction of the main body 20. Of course, it may be formed equal to the length of the main body 20.

The accommodation space 50 is formed so that at least one side is opened in the longitudinal direction, and is further provided with a cover member 74 fixed to the side of the lid 60 to block the accommodation space 50.

The cover member 74 is coupled to the cover part 60 by a fastening means 76 such as a bolt or a screw which is inserted into the through hole and fastened to a screw hole formed at one side of the cover part 60.

The accommodation space 50 may be integrally formed in the longitudinal direction without opening both sides thereof.

A sealing member 72 is further provided between the cover member 74 and the cover part 60 to prevent leakage of the liquid 80.

The sealing member 72 preferably uses a synthetic resin material or rubber material.

The sealing member 72 is inserted into the installation groove 62 formed in the side surface of the cover part 60, and is installed.

When the sealing member 72 is installed in the installation groove 62, the sealing member 72 is slightly protruded so that the cover member 74 is pressed slightly when engaged with the lid portion 60, and comes into close contact with the side surface of the lid portion 60. .

It is preferable that the heat dissipation protrusion 52 is further provided on the outer surface of the main body 20 so as to be formed inside the accommodation space 50. Of course, the heat radiation protrusions 52 may be formed anywhere as long as they are inside the accommodation space 50.

The heat dissipation protrusion 52 is preferably formed long in the longitudinal direction of the main body 20.

The heat generated from the LEDs 32 of the LED module 30 is received through the heat dissipation protrusions 52 protruding to the lower side of the main body 20 via the bottom 22 of the main body 20. It is delivered to the liquid 80 stored inside.

At this time, since the convection occurs due to the temperature difference between the liquid 80 on the upper side and the liquid 80 on the lower side due to the heat transferred to the liquid 80, the warmed liquid 80 circulates and moves downward. The liquid 80 is cooled to discharge heat to the outside, and is repeatedly configured to move upward.

It is preferable that the liquid 80 accommodated in the accommodation space 50 is a mixed solution of 20 to 40% by weight of propylene glycol with respect to 100% by weight of water.

In addition, the liquid 80 may further include a corrosion inhibitor to prevent internal corrosion of the lid part 60 forming the accommodation space 50.

Hereinafter, with reference to the accompanying drawings will be described the configuration of a lighting device having a liquid heat radiation structure according to a second embodiment of the present invention.

5 is an exploded perspective view of the LED lighting apparatus having a liquid heat dissipation structure according to the second embodiment of the present invention, Figure 6 is an assembled perspective view of the LED lighting apparatus having a liquid heat dissipation structure according to an embodiment of the present invention, Figure 7 is an assembled state cross-sectional view of the LED lighting device having a liquid heat dissipation structure according to an embodiment of the present invention, Figure 8 is a cross-sectional view taken along line AA of 3.

Since the luminaire having the liquid heat dissipation structure according to the second embodiment of the present invention is partially similar to the structure of the luminaire having the liquid heat dissipation structure according to the first embodiment of the present invention, the description of the similar structure is omitted. Do it.

In the luminaire (10) having a liquid heat dissipation structure according to a second embodiment of the present invention. The cover part 160 forms an accommodation space part 150 by wrapping the entire outer surface of the main body 20 to guide the heat generated from the rear surface of the LED module 30.

The accommodation space 150 further includes a cover member 174 that is formed to open at both sides in the longitudinal direction, and is fixed to the side of the cover 160 to block the accommodation space 150.

A sealing member 172 is further provided between the cover member 174 and the cover part 160 to prevent leakage of the liquid 80.

The sealing member 172 is preferably installed in the installation groove 162 formed in the side of the cover portion 160.

The heat dissipation protrusion 152 is further provided on the outer surface of the main body 20 so as to be formed inside the accommodation space 150.

The heat dissipation protrusion 152 may be formed in at least one portion of at least one of the bottom portion 22 and the side portion 24 of the body 20. Of course, the heat radiating protrusion 152 may be formed anywhere inside the accommodation space 150.

The liquid 180 is preferably a mixed solution of 20 to 40% by weight of propylene glycol with respect to 100% by weight of water.

The liquid 180 may further include a corrosion inhibitor to prevent internal corrosion of the lid 160 forming the accommodation space 150.

Hereinafter, based on the accompanying drawings to look at the assembly and operation of the lighting fixture having a liquid heat dissipation structure according to the first embodiment of the present invention.

As shown in Figures 1 to 4, first, the cover portion 60 having the main body 20 and the receiving space 50 is integrally processed by extrusion molding.

Then, the light transmitting member 45 is slidably inserted into the guide groove 26 of the main body 20, and the LED module 30 having a plurality of LEDs 32 in a row on the locking jaw 28 is assembled.

Then, by fastening the fastening means 42 by holding the blocking members 40 on both sides of the main body 20, the light blocking member 45 and the LED module 30 are prevented from being separated. Are assembled to both sides of the main body 20.

Then, the sealing member 72 is inserted into the installation groove 62 of the cover part 60, and the cover member 74 is attached to the cover part 74 using the fastening means 76 so that the sealing member 72 is in close contact. 60).

 In this case, the liquid 80 having a predetermined height is injected into the accommodation space 50. The injection of the liquid 80 can be achieved by assembling one cover member 74 first, then injecting the liquid 80 and assembling the remaining cover member 74.

As such, in the assembly state, the power is supplied to the lighting fixture 10 to operate the LED 32.

When the LED 32 is turned on for a long time, a high temperature heat is generated and transferred to the back of the LED module 30, and the heat generated from the back of the LED module 30 passes through the bottom 22 of the main body 20. It is transmitted to the liquid 80 stored in the interior of the receiving space 50 through the heat dissipation protrusion 52 protruding downward of the (20).

At this time, since the convection is generated by the temperature difference between the liquid 80 on the upper side and the liquid 80 on the lower side by the heat transferred to the liquid 80, the warmed liquid 80 circulates and moves downward.

In addition, since the liquid 80 moved to the lower side cools by discharging heat to the outside, the liquid 80 is repeatedly discharged to the upper side, thereby effectively dissipating heat generated from the LED module 30 to the outside, and thus heat dissipation efficiency is increased. Is increased.

Hereinafter, based on the accompanying drawings to look at the assembly and operation of the lighting fixture having a liquid heat dissipation structure according to the second embodiment of the present invention.

Since the assembly and operation of the luminaire having a liquid heat dissipation structure according to the second embodiment of the present invention is similar to the assembly and operation of the luminaire having a liquid heat dissipation structure according to the second embodiment of the present invention, the description of the similar contents will be omitted. Omit it.

First, the cover part 160 having the main body 20 and the receiving space 150 is integrally processed by extrusion molding.

Then, the light transmitting member 45 is slidably inserted into the guide groove 26 of the main body 20, and the LED module 30 having a plurality of LEDs 32 in a row on the locking jaw 28 is assembled.

Then, the sealing member 172 is inserted into the installation groove 162 of the cover unit 160 which covers the main body 20 as a whole, and the sealing member 172 is fastened to the cover member 174 so that the sealing member 172 is fastened. ) To the cover 60 using.

 In this case, the liquid 180 having a predetermined height is injected into the accommodation space 150. Injection of the liquid 180 may be accomplished by assembling one cover member 174 first and then assembling the other cover member 174.

As such, in the assembly state, the power is supplied to the lighting fixture 10 to operate the LED 32.

When the LED 32 is turned on for a long time, a high temperature heat is generated and transmitted to the back and both sides of the LED module 30, and the heat generated from the back of the LED module 30 is transferred to the bottom 22 of the main body 20. Through the heat dissipation protrusion 152 protruding to the outside and the bottom of the main body 20 is transmitted to the liquid 180 stored in the interior of the receiving space 50.

In this case, the liquid 180 located at the left, right, outer and lower sides of the main body 20 of the accommodation space 150 by the heat transferred to the liquid 180 is far away from the main body 20 to the outside. Since convection occurs due to the temperature difference therebetween, the warmed liquid 180 circulates and moves to the outside.

Then, after the liquid 180 moved to the outside is cooled by discharging heat through the atmosphere, the liquid 180 is moved to the outer side of the main body 20 again, and thus the heat generated from the LED module 30 is repeatedly performed. Since it is effectively discharged to the atmosphere, the heat radiation efficiency is increased.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

1 is an exploded perspective view of an LED lighting device having a liquid heat dissipation structure according to a first embodiment of the present invention.

2 is an assembled perspective view of an LED lighting device having a liquid heat dissipation structure according to a first embodiment of the present invention.

3 is an assembled state sectional view of the LED lighting apparatus having a liquid heat dissipation structure according to the first embodiment of the present invention.

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

5 is an exploded perspective view of an LED lighting device having a liquid heat dissipation structure according to a second embodiment of the present invention.

6 is an assembled perspective view of an LED lighting device having a liquid heat dissipation structure according to a second embodiment of the present invention.

7 is an assembled state sectional view of the LED lighting apparatus having a liquid heat dissipation structure according to a second embodiment of the present invention.

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

Explanation of symbols on the main parts of the drawings

10: lighting fixtures 20: body

30: LED module 40: blocking member

45: light transmitting member 50,150: receiving space

52,152: heat radiation projection 60,160: cover

70,170: sealing member 72,172: sealing member

74,174: cover member 80,180: liquid

Claims (16)

main body; An LED module installed in the main body and provided with one or more LEDs to irradiate light; And The lighting device having a liquid heat dissipation structure is formed by a cover unit integral to store the liquid on the outside of the main body, the accommodating space portion for circulating and dissipating the liquid with heat generated by the LED module. The method of claim 1, The main body, A bottom portion in which the LED module is placed; LED lighting device having a liquid heat dissipation structure characterized in that it is formed of a long bar type including a pair of side portions that are bent at both sides of the bottom portion. The method of claim 2, LED lighting device having a liquid heat dissipation structure, characterized in that the locking step portion is formed inside the side portion is fitted the substrate of the LED module. The method of claim 1, The main body further includes a light transmitting member for guiding the light irradiated from the LED and protecting the LED module. The light transmitting member, the LED lighting device having a liquid heat dissipation structure, characterized in that the slide assembly is assembled in the guide groove recessed inside the main body. The method of claim 4, wherein LED lighting device having a liquid heat dissipation structure, characterized in that the LED module and the light transmitting member is further provided with a blocking member fixed to both sides in the longitudinal direction of the main body to prevent it from being separated from the main body. The method of claim 1, The cover unit, LED lighting device having a liquid heat dissipation structure, characterized in that to form the receiving space surrounding the back of the main body to guide the heat generated from the back of the LED module. The method of claim 6, The accommodating space is an LED lighting device having a liquid heat dissipation structure, characterized in that at least one side is formed to open in the longitudinal direction, the cover member is fixed to the cover portion to block the accommodating space portion. The method of claim 7, wherein The LED lighting device having a liquid heat dissipation structure, characterized in that the sealing member is further provided between the cover member and the cover portion to prevent leakage of the liquid. The method of claim 8, The sealing member is an LED lighting device having a liquid heat dissipation structure, characterized in that installed in the installation grooves recessed in the side of the cover. The method of claim 1, The cover unit, LED lighting device having a liquid heat dissipation structure, characterized in that to form the receiving space surrounding the entire outer surface of the main body to guide the heat generated from the back of the LED module. The method of claim 10, The accommodating space is an LED lighting device having a liquid heat dissipation structure, characterized in that the both sides are formed to open in the longitudinal direction, the cover member is fixed to the side of the cover portion to block the accommodating space portion. The method of claim 11, The LED lighting device having a liquid heat dissipation structure, characterized in that the sealing member is further provided between the cover member and the cover portion to prevent leakage of the liquid. 13. The method of claim 12, The sealing member is an LED lighting device having a liquid heat dissipation structure, characterized in that installed in the installation grooves recessed in the side of the cover. The method of claim 1, LED lighting apparatus having a liquid heat dissipation structure is formed in the receiving space portion, the heat dissipation protrusion is further provided on the outer surface of the main body to assist the heat dissipation. The method of claim 1, The liquid is an LED lighting device having a liquid heat dissipation structure, characterized in that the mixed solution of 20 to 40% by weight of propylene glycol with respect to 100% by weight of water. The method of claim 1, The liquid, LED lighting device having a liquid heat dissipation structure, characterized in that it further comprises a corrosion inhibitor.

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