KR101302892B1 - Natural cooling led lamp for leading heat flow outside - Google Patents

Natural cooling led lamp for leading heat flow outside Download PDF

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Publication number
KR101302892B1
KR101302892B1 KR1020130080671A KR20130080671A KR101302892B1 KR 101302892 B1 KR101302892 B1 KR 101302892B1 KR 1020130080671 A KR1020130080671 A KR 1020130080671A KR 20130080671 A KR20130080671 A KR 20130080671A KR 101302892 B1 KR101302892 B1 KR 101302892B1
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KR
South Korea
Prior art keywords
heat
led
cooling tube
cover
outside
Prior art date
Application number
KR1020130080671A
Other languages
Korean (ko)
Inventor
김정훈
Original Assignee
김정훈
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Priority to KR1020130080671A priority Critical patent/KR101302892B1/en
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Publication of KR101302892B1 publication Critical patent/KR101302892B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/60Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes

Abstract

PURPOSE: An LED lamp capable of being naturally cooled by inducing heat flow to the outside is provided to transfer heat generated inside of a cover to an external air for forming heat flow and quickly discharge the heat flow through a ventilator to the outside, thereby naturally being cooled. CONSTITUTION: An LED lamp comprises a plug housing to which a socket plug for contact is coupled; a cover base which is spaced apart from the plug housing with a predetermined interval; a ventilator (16) on which ventilation holes are densely distributed; an LED cover (18) which is fixed at the cover base; a cooling tube (20) for heat exchange conducting lighting heat to cool air which is flowed in; and a plurality of LED modules (22) which is turned on when power is applied to the socket plug.

Description

Natural cooling led lamp for leading heat flow outside

The present invention relates to an LED lighting lamp, and more particularly to an LED lighting lamp for conducting natural cooling by conducting the heat of illumination generated in the LED cover to the outside air and generating a heat flow flow to the outside quickly.

In general, the lighting is used to convert the electrical energy into light energy to identify the object even in the dark place, in recent years to create an indoor decoration, a cozy atmosphere, or to illuminate roads, parks, and the like. Such lamps are manufactured in various forms, and conventionally, lighting apparatuses using incandescent lamps or fluorescent lamps have been mainly used. Incandescent lamps are inexpensive to manufacture, but they have been used recently because they generate a lot of heat in converting electrical energy into light energy. Fluorescent lamps consume less energy because they have higher energy conversion efficiency than incandescent lamps. There is a problem that is short and lifespan.

In order to solve this problem, a light emitting diode (LED), that is, a light emitting diode (LED) capable of obtaining high illumination at a low power and a semi-permanent lifetime has been recently developed. LED has the advantages of fast processing speed and low power consumption, and is environmentally friendly and has high energy saving effect.

In addition, LED-based lighting has been spotlighted as a lighting device due to its low power consumption of about 10 to 15%, more than 100,000 hours of semi-permanent life, and environmentally friendly characteristics compared to conventional incandescent or fluorescent lamps. However, the conventional LED lighting has a problem that does not smoothly discharge or remove the heat generated therein.

As such, since the heat generated inside is not smoothly discharged, there is a problem that the LED itself is damaged by this heat and its life is significantly shortened.

As a background technology of the present invention is a Korean Patent Registration No. 10-0822032, a power contact portion is attached to the inside, the through-hole is formed in the power contact portion, a vent around the top corresponding to the through-hole A plug body formed in the lower part of the plug body; A light socket coupled to an inner side of the plug main body such that an upper end thereof contacts the power contact unit, and having an exhaust hole around an upper part corresponding to the through hole, and having an open lower part; Hemispherical lampshade having a coupling hole in the upper center to be fitted to the outer peripheral surface of the lower end of the light socket, and reflects light from the inner surface; A natural convection pipe having an upper end coupled to a lower end of the light socket, protruding to the outside of the lamp shade, and having natural convection as the air inside is heated by heat generated from the outside; An LED lamp unit mounted on an outer circumferential surface of the natural convection tube; It has been proposed to include a natural cooling type LED lighting.

However, the background art performs a function of discharging the heat generated inside the lamp in a natural convection method, but there is a limit to increase the cooling performance due to the narrow and narrow passageway at the outlet side to discharge the heat absorbed from the natural convection observation. .

Korean Laid-Open Patent Publication No. 10-2010-0044632 (LED lighting device circuit module and LED lighting device including the same) Korean Registered Patent Registration No. 10-1051501 (LED lighting lamp with cooling device) Korean Patent Registration No. 10-0950804 (LED Lamp Cooling Device)

It is an object of the present invention to provide an LED lighting lamp that conducts the heat of illumination generated in the LED cover to the outside air and generates a heat flow to quickly discharge to the outside to achieve natural cooling.

According to a preferred embodiment of the present invention,

A plug housing to which a socket for contact plug is coupled;

A cover base disposed at a predetermined distance from the plug housing;

A ventilation passage disposed between the plug housing and the cover base, the ventilation holes being closely distributed on an outer circumferential surface thereof;

A tip having a hemispherical surface and having a cylindrical shape having a predetermined length and fixed to the cover base;

It has a cold air inlet hole exposed to the hemispherical surface of the LED cover at one end and a cold air outlet hole located at the other end of the ventilation tube at the other end, and is introduced into the central axis of the LED cover to conduct the heat of illumination in the LED cover to the introduced cold air. A cooling tube;

It is characterized in that it comprises a plurality of LED modules that are supported by the heat exchange cooling tube is turned on when power is applied to the contact socket plug.

In addition, the outer circumferential surface of the ventilator is characterized in that it is further provided with a heat sink fins arranged radially to increase the heat dissipation area of the surface.

In addition, the ventilation barrel is characterized in that the center core in contact with the heat exchange cooling tube is disposed inside, the outer circumferential surface of the center core is connected to a plurality of small diameter heat cooling tube radially arranged.

In addition, the inner circumferential surface of the cooling tube for heat exchange is characterized in that the inner cooling pipe radiating fins further arranged radially to increase the heat conduction area.

In addition, the outer circumferential surface of the cooling tube for heat exchange is characterized in that the outer cooling pipe heat dissipation fins are arranged further radially to increase the heat conduction area.

In addition, silver powder or copper powder is coated on the inner circumferential surface and the outer circumferential surface of the cooling tube for heat exchange.

In addition, the plurality of LED module is characterized in that it is installed on the plate-like conductive plate bonded to the cooling tube for heat exchange.

In addition, the plurality of LED modules are stacked in multiple stages having a reflection angle that is inclined with respect to the direction of the central axis of the heat exchange cooling tube, characterized in that the adjacent up and down are arranged in a position shifted from each other.

In addition, the outer circumferential surface of the ventilator is characterized in that a plurality of pleated heat dissipation wrinkle plates are arranged in a stack to increase the heat dissipation area of the surface, each of the plurality of heat dissipation wrinkle holes are arranged in the circumferential direction.

In addition, at least one housing heat dissipation hole is formed on an upper surface of the plug housing, a rain water blocking cover is positioned above the housing heat dissipation hole, and the rain water blocking cover is a leaf spring installed at a bearing stand installed at the center of the housing heat dissipation hole. And it is supported by the locking jaw can be moved up and down to stop and adjust the heat dissipation amount and opening and closing of the housing heat radiating hole, the housing heat radiating hole is further provided with an annular rainwater inflow blocking step bent upwards and outwards to block rainwater inflow It is done.

According to the LED lighting, which is naturally cooled by inducing the heat flow of the present invention, the heat of illumination generated in the LED cover is conducted to the outside air through a heat exchange cooling tube in the LED cover, and generates a heat flow to quickly flow through the ventilator. Natural cooling is achieved by discharging as At this time, the ventilator sufficiently receives the amount of heat flowed from the heat exchange cooling tube and quickly discharges it, thereby improving cooling performance.

Therefore, the life of the LED module can be improved, and the deterioration of the light efficiency can be prevented.

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1 is a perspective view of an LED lamp according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of Fig. 1; Fig.
3 is a front sectional view of FIG.
Figure 4 is a perspective view showing a modification of the ventilation cylinder applied to the present invention.
5 is a perspective view showing another modified example of the ventilation cylinder applied to the present invention.
Figure 6 is a partial cross-sectional view of the LED cover showing a state in which the heat dissipation fins are installed in, the outer heat conduction tube applied to the present invention.
7 is a cross-sectional view taken along the line AA of FIG. 6.
8 is a perspective view showing another modified example of the ventilation cylinder applied to the present invention.
9 is a cross-sectional view of the LED lamp according to another embodiment of the present invention.
FIG. 10 is an enlarged view of a 'K' part of FIG. 9;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

1 to 3, the LED lamp 10 of the present invention is provided with a plug housing 12 to which the contact socket plug 121 is coupled. Therefore, the LED lamp 10 is turned on when the LED element of the LED module 22 is supplied with power through the contact socket plug 121.

The cover base 14 is disposed at regular intervals from the plug housing 12. The cover base 14 has a disc shape and fixes the LED cover 18 to be described later.

The ventilation cylinder 16 is arrange | positioned between the plug housing 12 and the cover base 14. In the present embodiment, the ventilation tube 16 is fixedly installed by a plurality of fastening bolts 15 and nuts connecting the plug housing 12 and the cover base 14 to each other. The vent 16 is cylindrical with a height lower than its diameter. The ventilation cylinder 16 is preferably made of aluminum or the like having excellent thermal conductivity. Ventilator 16 has a plurality of ventilation holes 161 through the thickness of the outer circumferential surface is closely distributed. Therefore, the ventilation hole 161 communicates the inside and the outside of the vent 16 to induce smooth ventilation when the LED lighting 10 is turned on.

As shown in FIG. 4, the outer circumferential surface of the vent 16 may further include a plate-shaped ventilator heat dissipation fin 162 arranged radially to increase the heat dissipation area of the surface. Therefore, the cooling of the LED lamp 10 can be performed quickly by conducting the ventilation of the ventilation tube 16 and conducting heat introduced into the outside through the ventilation tube radiating fin 162 to the outside. Ventilation radiator fin 162 may be made of the same metal material as the ventilator 16 in a thin plate shape or made of aluminum having excellent thermal conductivity.

In another embodiment, as shown in FIG. 5, the ventilator 16 has a center core 164 in contact with the heat exchange cooling tube 20 to be described later, and a small diameter disposed radially on the outer circumferential surface of the center core 164. It is also possible to configure the structure in which a plurality of heat cooling tubes 165 are connected. In this case, not only the conduction area required for heat dissipation is increased by the center core 164 and the small-diameter thermal cooling tube 165, but the heat introduced through the heat exchange cooling tube 20 is transferred through the small-diameter thermal cooling tube 165. Discharged quickly. The center core 164 and the small diameter heat cooling tube 165 are preferably made of aluminum having excellent thermal conductivity.

The cover base 14 is provided with a transparent or translucent LED cover 18. The LED cover 18 has a hemispherical surface 181 at the tip and a cover flange 182 at the other end in a cylindrical shape having a predetermined length. At this time, the cover flange 182 is in close contact with the cover base 14 by the disc-shaped cover fixing plate 19 fastened by the fastening bolt 15 is fixed to the LED cover 18 is installed. A sealing pad 21 made of rubber or silicone is provided between the cover fixing plate 19 and the cover base 14. The LED cover 18 is made of transparent or translucent glass or synthetic resin material. The inside of the LED cover 18 is vacuumed.

The LED cover 18 is provided with a heat exchange cooling tube 20. The heat exchange cooling tube 20 is preferably made of aluminum or the like having excellent thermal conductivity as a metal material. The heat exchange cooling tube 20 penetrates on the central axis of the LED cover 18 and functions to conduct the heat of illumination inside the LED cover 18 to the cold air introduced therein. The heat exchange cooling tube 20 has a cold air inlet hole 201 exposed at one end of the hemispherical surface 181 of the LED cover 18 and a cold air outlet hole 202 located at the other end of the ventilation tube 16. . Therefore, the outside air is introduced through the cold air inlet 201 and absorbs the heat in the LED cover 18 through the heat exchange cooling tube 20 and is discharged through the cold air outlet 202. The discharged absorbed heat is introduced into the ventilator 16 and quickly discharged to the outside to cool the lighting heat in the LED cover 18.

6 and 7, the inner circumferential surface of the heat exchange cooling tube 20 may further include an inner cooling tube heat dissipation fin 205 arranged radially to increase the heat conduction area. The inner cooling tube heat dissipation fin 205 is disposed in the longitudinal direction of the heat exchange cooling tube 20 in a plate shape.

In addition, an outer circumferential surface of the heat exchange cooling tube 20 may further include an outer cooling tube heat dissipation fin 206 arranged radially to increase a heat conduction area. The outer cooling tube heat dissipation fins 206 are disposed in the longitudinal direction of the heat exchange cooling tube 20. At this time, the outer cooling pipe radiating fin 206 is cut in the longitudinal direction for the installation of the LED module 22.

In addition, silver powder or copper powder may be coated on the inner and outer circumferential surfaces of the cooling tube 20 for heat exchange. Coating is performed by attaching silver powder or copper powder to the binder and then attaching it to the surface of the cooling tube 20 for heat exchange.

A plurality of LED modules 22 are supported by the heat exchange cooling tube 20 and installed in multiple stages up and down. The LED module 22 is disposed both in the longitudinal direction and circumferentially and has an LED element. At this time, the LED module 22 disposed at each end in the longitudinal direction is preferably installed so as to shift each other so as not to interfere with the illumination. In addition, the LED module 22 is preferably installed having a reflection angle inclined with respect to the central axis direction of the heat exchange cooling tube 20. The LED module 22 is connected to a circuit line (not shown) to be turned on when the power is applied to the contact socket plug 121 and is turned on.

Preferably, the plurality of LED modules 22 may be installed in a plate-like conductive plate 204 joined to the heat exchange cooling tube 20. The plate-shaped conductive plate 204 may be made of a material having excellent thermal conductivity.

The LED lamp 10 configured as described above is installed vertically or horizontally or inclined as shown in FIG. 1 and used as a lamp. At this time, when the LED module 22 is turned on, heat is generated and heat is filled in the vacuum of the LED cover 18.

At this time, the heat is conducted to the heat exchange cooling tube 20 as shown in FIG. 3, and the cold air introduced through the cold air inlet hole 201 absorbs the conducted heat. After the heat exchange, the air is discharged into the vent 16 through the cold air outlet 202. The conduction heat introduced into the ventilator 16 is quickly discharged to the outside through many vent holes 16.

As such, while the lamp 10 is turned on, the heat flow flowing through the heat absorbed in the LED cover 18 by the heat exchange cooling tube 20 continues to be absorbed, and the ventilation exits to the outside through the ventilator 16. Will be performed. Therefore, the temperature rise in the LED cover 18 is prevented to improve the life of the lighting lamp and prevent the decrease in the light efficiency.

Meanwhile, in the present invention, as shown in FIG. 8, a plurality of corrugated heat dissipating wrinkle plates 169 are laminated and disposed on the outer circumferential surface of the vent 16 to have a circumference on each of the heat dissipating wrinkle plates 169. The plurality of heat dissipation wrinkled holes (169a) may be arranged in a direction.

9 and 10, one or more housing heat dissipation holes 12a may be formed on the top surface of the plug housing 12, and the rainwater blocking cover 13 may be positioned above the housing heat dissipation holes 12a. In this case, the rainwater blocking cover 13 is supported by the leaf spring 130 installed in the center of the housing heat dissipation hole 12a as the leaf spring 131 and the locking jaw 130a so that the rain water blocking cover 13 can be moved up and down and stopped. In addition, the rain water blocking cover 13 adjusts the heat dissipation amount and opening and closing of the housing heat dissipation hole 12a according to the vertical movement control. At this time, the housing heat dissipation hole (12a) is preferably provided with an annular rainwater inlet blocking jaw (12b) bent upwards and outwards to block the rainwater inflow.

In the present embodiment, the housing heat dissipation hole 12a and the rainwater blocking cover 13 are formed in two places symmetrically on the upper surface of the plug housing 12, but may be configured in four places in the circumferential direction.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

12: plug housing
13: rainwater cover
130: bearing stand
131: leaf spring
14: cover base
16: ventilator
162: ventilation drum heat sink
164: center core
165: small diameter heat exhaust pipe
169: heat dissipation plate
169a: heat dissipation
18: LED cover
20: heat exchanger
22: LED module
205: inner conductor heat dissipation fin
204: conduction plate
206: outer conductor heat sink fin

Claims (10)

  1. A plug housing 12 to which the contact socket plug 121 is coupled;
    A cover base (14) disposed at regular intervals from the plug housing (12);
    A ventilator 16 disposed between the plug housing 12 and the cover base 14 and having ventilation holes 161 closely distributed on an outer circumferential surface thereof;
    The front end is a transparent or semi-transparent LED cover 18 having a hemispherical surface 181 and made of a cylindrical shape having a predetermined length and fixed to the cover base 14;
    One end of the LED cover 18 has a cold air inlet hole 201 exposed to the hemispherical surface 181 of the LED cover 18 and a cold air outlet hole 202 located in the ventilator 16 at the other end thereof. A heat exchange cooling tube 20 that is inserted into the central axis and conducts the heat of illumination in the LED cover 18 to the introduced cold air;
    LED lamps that are naturally cooled by guiding the heat flow to the outside, characterized in that it includes a plurality of LED modules (22) supported by the heat exchange cooling tube (20) and turned on when power is applied to the contact socket plug (121).
  2. The method of claim 1,
    LED luminaires are naturally cooled by inducing heat flow to the outside, characterized in that the outer circumferential surface of the ventilator 16 is further provided with a heat sink fin 162 arranged radially to increase the heat dissipation area of the surface.
  3. The method of claim 1,
    The ventilator 16 has a center core 164 in contact with the heat exchange cooling tube 20 therein, a plurality of small diameter thermal cooling tube 165 disposed radially on the outer peripheral surface of the center core 164. LED lighting that is naturally cooled by inducing a heat flow to the outside, characterized in that the dog is connected.
  4. The method of claim 1,
    The inner circumferential surface of the heat exchange cooling tube 20 further includes an inner cooling tube heat dissipation fin 205 arranged radially to increase the heat conduction area. .
  5. The method of claim 1,
    LED lamps for naturally cooling by inducing heat flow to the outside, characterized in that the outer circumferential surface of the heat exchange cooling tube 20 is further provided with an outer cooling tube radiating fin 206 arranged radially to increase the heat conduction area. .
  6. The method of claim 1,
    LED lighting that is naturally cooled by inducing a heat flow to the outside, characterized in that the silver powder or copper powder is coated on the inner circumferential surface and the outer circumferential surface of the heat exchange cooling tube (20).
  7. The method of claim 1,
    The plurality of LED modules 22 are LED lighting lamps that are naturally cooled by inducing a heat flow to the outside, characterized in that installed on the plate-like conductive plate 204 is joined to the heat exchange cooling pipe (20).
  8. The method of claim 1,
    The plurality of LED modules 22 are stacked in multiple stages having a reflection angle that is inclined with respect to the central axis direction of the heat exchange cooling tube 20, but the heat flow is characterized in that they are arranged at positions different from each other. LED lights that are naturally cooled by induction.
  9. The method of claim 1,
    On the outer circumferential surface of the vent 16, a plurality of corrugated heat dissipating wrinkle plates 169 are disposed to be stacked in order to increase the heat dissipation area of the surface, and a plurality of heat dissipating wrinkle holes circumferentially disposed on the heat dissipating wrinkle plates 169, respectively. 169a) LED lights that are naturally cooled by inducing heat flow to the outside, characterized in that the arrangement.
  10. The method of claim 1,
    One or more housing heat dissipation holes 12a are formed on an upper surface of the plug housing 12, and a rainwater blocking cover 13 is positioned above the housing heat dissipation hole 12a, and the rainwater blocking cover 13 is a housing. It is supported by the leaf spring 130 installed in the center of the heat radiating hole (12a) by the leaf spring 131 and the locking jaw (130a) to move up and down and stop, thereby controlling the amount of heat dissipation and opening and closing of the housing heat radiating hole (12a) , The housing heat radiating hole (12a) is led to the natural heat by directing the heat flow flow characterized in that it is further provided with an annular rainwater inflow blocking jaw (12b) bent upwards and outwards to block rainwater inflow.
KR1020130080671A 2013-07-10 2013-07-10 Natural cooling led lamp for leading heat flow outside KR101302892B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080316755A1 (en) 2007-06-22 2008-12-25 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp having heat dissipation structure
KR100982727B1 (en) 2010-01-15 2010-09-17 김영보 Led lighting appratus
KR20110087012A (en) * 2010-01-25 2011-08-02 오명호 Led lamp
KR20110101789A (en) * 2010-03-09 2011-09-16 김현민 Lighting cover having air pipe and led lighting apparatus using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080316755A1 (en) 2007-06-22 2008-12-25 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp having heat dissipation structure
KR100982727B1 (en) 2010-01-15 2010-09-17 김영보 Led lighting appratus
KR20110087012A (en) * 2010-01-25 2011-08-02 오명호 Led lamp
KR20110101789A (en) * 2010-03-09 2011-09-16 김현민 Lighting cover having air pipe and led lighting apparatus using the same

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