KR101656524B1 - Led lamp of a plastic material with cooling structure - Google Patents

Led lamp of a plastic material with cooling structure Download PDF

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Publication number
KR101656524B1
KR101656524B1 KR1020160032460A KR20160032460A KR101656524B1 KR 101656524 B1 KR101656524 B1 KR 101656524B1 KR 1020160032460 A KR1020160032460 A KR 1020160032460A KR 20160032460 A KR20160032460 A KR 20160032460A KR 101656524 B1 KR101656524 B1 KR 101656524B1
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KR
South Korea
Prior art keywords
cover
led
led module
plate
circumferential surface
Prior art date
Application number
KR1020160032460A
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Korean (ko)
Inventor
이홍
장세인
Original Assignee
주식회사 티솔루션
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Priority to KR1020160032460A priority Critical patent/KR101656524B1/en
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Publication of KR101656524B1 publication Critical patent/KR101656524B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14—Covers for frames; Frameless shades
    • F21V1/16—Covers for frames; Frameless shades characterised by the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V29/004—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
    • F21Y2101/02—

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The present invention relates to a plastic LED luminaire having a heat dissipation structure and includes a cover 110 forming a streamlined receiving space 111 to which the LED module 130, the LED ballast 140 and the ridge 150 are mounted, And a plate 120 coupled to a lower side of the cover 110 to illuminate the light through the rear intake air passage 172 of the cover 110, The LED ballast 140 and the LED module 130 are cooled by introducing the natural wind into the cover 110 through the ventilation path 171 and passing through the top surface 161 of the mounting portion 160 And then discharged through the exhaust path 173, so that there is an advantage that the LED lighting device can be cooled by implementing the heat radiation effect effectively by only the simplified configuration.

Figure R1020160032460

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an LED lamp,

More particularly, the present invention relates to a LED lighting fixture of a heat dissipating structure, and more particularly, to a LED lighting fixture using a cover and a plate of a plastic material having a low thermal conductivity and a considerably low weight compared to a metal, And at the same time naturally flows the natural wind into the inside of the cover to circulate the natural air, thereby effectively cooling the heat generated by the LED module.

Generally, a streetlight is a lighting fixture installed along a street, and it is a lighting fixture installed to secure the visibility at night and to secure the safety of citizens such as accident and crime prevention.

Street lamps can be classified into signs for specific objects or locations depending on their use, roads that illuminate the entire road, security for night safety walking, etc. Depending on the form, A highway type in which a pole is bent in a "A" shape, and a bracket type in which a lamp is mounted using a separate horizontal type bracket.

Lamps that are light sources of street lamps have used incandescent lamps, which have been relatively inexpensive in the past, but they have recently been replaced by LEDs that have abundant light intensity and long lifespan, though they consume significantly less electricity.

A conventional LED lighting device includes an LED module having an upper cover and a plate for finishing the cover, an LED chip mounted on a substrate, and an LED ballast SMPS, Switching mode power supply).

Meanwhile, as described above, the LED lamp has a lower calorific value than an incandescent lamp that emits light by emitting a filament, but the LED element incorporated in the LED module emits only 20% of energy to light and emits the remaining 80% to heat.

The heat generated in this way hinders the stability and optical characteristics of the LED device and adversely affects the electrical action of a peripheral device such as a LED ballast, thereby causing an increase in power consumption, thereby shortening the lifetime of the LED lighting device.

Therefore, in recent years, in order to discharge heat of high temperature emitted from the surface of the LED module to the outside, a technique of mounting a heat sink having heat dissipation fins such as a heat sink using a metal material having high thermal conductivity inside the LED lighting fixture .

The LED lighting structure disclosed in the Japanese Patent No. 10-1425939, which is an example of an LED lighting fixture having the above-described heat radiation fins, will now be described in detail.

A plurality of LED modules protruding from the back surface of the LED module are formed on the lower surface of the up-and-down heat sink portion spaced apart from the upper portion of the LED module in order to radiate heat to at least one or more LED modules formed in the heat- A lower heat dissipating fin portion formed by collecting downward heat dissipation fins contacting with the contact end Lt, an upward heat dissipating fin portion formed by collecting upward heat dissipation fins on the upper surface of the upside down heat dissipating plate portion, and two heat dissipation fin portions formed on both sides of the upside down heat dissipating plate portion, Shaped main housing formed in two spaces in a space of a lower end of a heat-dissipative main housing formed in two stages in the height direction (hd), and a width direction Wd And a wiring processing chamber formed on the both sides of the wiring processing chamber.

Registration No. 10 - 1425939 Patent No. 10-1267089 Patent No. 10-1322786 Registration No. 10 - 1093182

The LED lighting structure to which the conventional technology as described above is applied includes a housing including four kinds of heat radiating fin portions including a downward, upward, and a lateral direction so as to conduct heat in contact with the upper side of the LED module.

In general, the radiating fin is made of a metal material having a high thermal conductivity, such as copper, so as to conduct heat of high temperature generated from the surface of the LED module and to discharge the heat to the outside. The same is true of the heat sink fins.

However, since the heat dissipation fins have a large difference in heat radiation amount depending on the shape of the heat dissipation fin, for example, the gap or the height between the heat dissipation fins, the structural design of the heat dissipation fins is difficult and theoretically the height of the heat dissipation fin, The amount of heat radiation is increased in proportion to the thickness of the heat radiation plate, so that the size of the housing of the LED lighting fixture mounting the heat radiation plate is also inevitably increased in order to obtain a certain level of heat radiation efficiency.

In general, the radiating fins are very vulnerable to dust and foreign substances due to their structural characteristics, and when these foreign substances adhere to the radiating fins, they directly affect the heat dissipation efficiency. Therefore, considering that most street lamps are installed on the road, Thereby causing another problem inevitable.

Accordingly, the present invention has been made to solve the above-mentioned problems,

A cover 110 that forms a streamlined receiving space 111 in which the LED module 130, the LED ballast 140 and the lid 150 are mounted, and a plate 120 that is coupled to the lower side of the cover 110 An LED lamp (100) for illuminating a light,

An upper surface 161 curved in the same shape as the inner circumferential surface of the cover 110 and a mounting surface 162 for forming both side surfaces 162 and 163 closing the left and right sides of the upper surface 161 are formed in the receiving space 111 of the cover 110, The LED ballast 150 and the LED ballast 140 are separated from each other,

A lateral rib R1 and a longitudinal rib R2 are formed in a lattice shape on the inner circumferential surface of the cover 110. A gap is formed between the top surface 161 of the mounting portion 160 and the longitudinal rib R2, A ventilation passage 171 is provided,

The height of the lateral ribs R1 is formed to be lower than the height of the longitudinal ribs R2 so that the central portion of the lateral ribs R1 is formed to be drawn horizontally or curvedly,

The plate 120 is formed in a shape of a letter "B" so as to close the lower side of the cover 110 and the rear end where the ridge 150 is inserted. The plate 120 is coupled to a fastener 112 provided inside the cover 110, An intake path 172 is formed at a predetermined distance between the case 121 and the case 150 so as to be spaced apart from the inner circumferential surface of the case 120 by a predetermined distance An exhaust passage 173 is formed,

Natural air flows into the inner receiving space 111 of the cover 110 through the rear intake passage 172 of the cover 110 and passes through the upper surface 161 of the mounting portion 160 through the ventilation path 171 The LED stabilizer 140 and the LED module 130 are cooled and then discharged through the exhaust path 173 as the LED stabilizer 140 and the LED module 130 are guided to the front of the cover 110. Thus, It is possible.

The present invention has an advantage in that, in the cover and plate structure of the LED lamp, the natural wind is introduced into the cover to release heat generated by the LED module mounted therein, thereby releasing heat by convection.

Particularly, it is different from the LED lamp which is made of metallic material, which has a large volume and a complicated design structure as in the prior art, and has a complicated design structure, so that the entire cover and the plate are made of a plastic material having a low thermal conductivity and a remarkably light weight, There is an advantage that it is possible to prevent the occurrence of side effects such as overheating due to thermal damage to the LED ballast or the like.

In addition, there is an effect of effectively cooling and discharging the heat generated by the LED module as the natural air circulates inside the cover by forming intake air, ventilation, and exhaust path leading from the rear of the cover to the front.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a plastic LED lamp according to an embodiment of the present invention; FIG.
2 to 3 are exploded views of a plastic LED lamp according to an embodiment of the present invention.
4 is a side view according to an embodiment of a plastic LED luminaire of a heat-dissipating structure of the present invention.
Fig. 5 is a front view (a) viewed from the direction A in Fig. 4, and a rear view (b) seen from the direction B; Fig.
Fig. 6 is a cross-sectional view (a) taken along line CC in Fig. 4, and a cross-sectional perspective view (b).
7 is a bottom plan view of a cover 110 according to an embodiment of a plastic LED luminaire of a heat radiation structure of the present invention.
8 is a cross-sectional view taken along line DD of Fig.
9 is a cross-sectional view taken along the line EE of Fig.
10 is a cross-sectional view showing another embodiment (a), (b) of a lateral rib R1 of a plastic LED lighting device of a heat radiating structure of the present invention in the excerpt of FIG.
Fig. 11 is a view showing an example of an operating state of an LED lamp of a plastic material of a heat-radiating structure according to an embodiment of the present invention; Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure and operation of a plastic LED lamp according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of an LED lamp according to an embodiment of the present invention. FIG. 2 is an exploded view of an LED lamp according to an embodiment of the present invention. Fig. 5 is a front view (a) viewed from the direction A in Fig. 4 and a rear view (b) viewed from the direction B, Fig. 6 is a front view of the LED 7 is a bottom view of a cover 110 according to an embodiment of a plastic LED lamp of a heat radiation structure of the present invention, Fig. 8 is a bottom view of a cover 110 according to an embodiment of DD 9 is a cross-sectional view taken along the line EE of Fig. 7, Fig. 10 is a cross-sectional view taken along line EE of Fig. 11 (a) and 11 (b) are schematic cross-sectional views of a plasma The operation of the LED lighting device according to the embodiment of the present invention will be described below.

The plastic LED luminaire 100 of the heat-dissipating structure to which the present invention is applied has a cover 110 and a plate 120 using a plastic material having a thermal conductivity lower than that of a metal and a light weight, The LED module 130 mounted on the LED module 130 and the accommodating space 111 of the LED stabilizer 140 and the ridge 150 are divided into an overheat of the cover 110 caused by the heat generated by the LED module 130, It is noted that the present invention relates to a technique for cooling the LED lamp 100 by preventing convection and naturally introducing and circulating natural wind into the inside of the cover 110 to achieve a heat radiation effect by convection.

For this purpose, the plastic LED luminaire 100 of the present invention comprises a cover 110 and a plate 120 coupled to the lower side of the cover 110, as shown in FIG. 1, The lighting fixture (100) includes the following configuration.

As shown in FIGS. 2 to 3, the housing 110 of the cover 110 has a top surface 161 curved in the same shape as the inner circumferential surface of the cover 110 and a top surface 161 curved in the left and right sides of the top surface 161 The LED ballast 140 and the LED 150 may be mounted on the mounting portion 160. The LED 150 may be mounted on the mounting portion 160. [

That is, the LED module 130, which is the main cause of heat generation in the LED lamp 100, is mounted in front of the housing space 111 of the cover 110, and the mounting part 160 is coupled to the central part, It is possible to prevent the heat transmitted by the LED module 130 and prevent the damage of the LED ballast 140 which may occur when the LED 150 is inserted and removed from the rear of the cover 110. [ .

7, a lateral rib R1 and a longitudinal rib R2 are formed in a lattice shape on the inner circumferential surface of the cover 110, Between the upper surface 161 and the vertical ribs R2, a ventilation passage 171 is provided at a predetermined interval.

That is, the mounting unit 160 separately divides the space in which the LED module 130, the LED ballast 140 and the ridge 150 are accommodated to minimize thermal conduction by the LED module 130, The cover 110 may be provided on the inner circumferential surface of the cover 110 so as to protect the outer surface of the cover 110. In order to provide a cooling effect by introducing and circulating the natural air into the receiving space 111 of the cover 110, The transverse ribs R1 and the longitudinal ribs R2 are formed so as to provide a ventilation path 171 spaced apart from the connecting portion between the mounting portion 160 and the cover 110. [

Therefore, the wind can flow forward from the rear of the accommodation space 111 on the upper surface 161 of the mounting portion 160, and the height of the lateral ribs R1 is lower than the height of the longitudinal ribs R2 So that the wind is guided along the longitudinal ribs R2 while riding over the lateral ribs R1.

In addition, as shown in FIGS. 9 to 10, the central portion of the transverse rib R1 may be horizontally or curved so as to increase the cross-sectional area of the ventilation passage 171 to further increase ventilation efficiency.

The plate 120 is provided in a shape of a letter "B" so as to close the lower side of the cover 110 and the rear end where the ridge 150 is inserted, and is coupled to a fastener 112 provided inside the cover 110, As shown in FIG. 5, the intake path 172 is formed at a predetermined interval between the case 121 and the case 150 of the plate 120.

The louver 150 is installed in a direction to illuminate the top of a streetlight pole installed on the outdoor roadside and enters the accommodation space 111 through the louver insertion port 121 from the rear of the cover 110, They are combined using brackets. The size of the intake path 172 can be varied depending on the diameter of the sprue plug insertion port 121 or the sprue 150 and the natural wind can be naturally introduced into the cover 110 by riding on the sprue 150 exposed to the outside .

An exhaust passage 173 is formed between the outer circumferential surface of the plate 120 and the inner circumferential surface of the cover 110 with a predetermined distance therebetween as shown in an enlarged view on the right side of FIG. In other words, the air is introduced into the inner housing space 111 of the cover 110 through the rear intake air passage 172 of the cover 110, and the air is introduced into the upper surface 161 of the mounting portion 160 through the air passage 171, The LED stabilizer 140 and the LED module 130 are cooled and then discharged through the exhaust passage 173 by guiding the LED stabilizer 140 and the LED module 130 forward through the cover 110. [

11, a ventilation fan 180 is additionally installed in the front accommodation space 111 of the cover 110 on which the LED module 130 is mounted, and the ventilation fan 180 is connected to the rear intake passage 172 by a suction force. So as to circulate the wind more effectively.

The ventilation fan 180 may be mounted in front of the accommodation space 111 using a conventional small electric fan and can be easily driven by using a power source supplied to the LED lighting device 100. Therefore, You do not have to.

Hereinafter, the state of use of the LED lighting fixture 100 made of plastic and the advantages of the LED lighting fixture 100 having the heat-dissipating structure according to the present invention will be described.

11 shows a side cross-section of a plastic LED luminaire 100 of a heat-radiating structure according to the present invention and shows the direction of movement of the wind using arrows. In the rear-back insertion opening 121 of the streamlined cover 110, An LED module 130 is mounted on the front of the accommodation space 111 and an LED stabilizer 140 is mounted on the mounting part 160 coupled to the center. And the plate 120 is coupled to the lower side to close the accommodation space 111.

As shown in Fig. 11, the wind is introduced in the direction of the arrow through the rear intake passage 172 of the cover 110. As shown in Fig. Since the longitudinal ribs R2 are formed on the inner circumferential surface of the cover 110 in the wind inflow direction, that is, the rear side of the cover 110, the inflow wind is guided by the longitudinal ribs R2, And moves along a ventilation path 171 formed along the upper surface 161.

Of course, since the transverse rib R1 is formed to have a lower height than the longitudinal rib R2, the inflow wind moves across the transverse rib R1 and is temporarily blocked by the transverse rib R1, The cooling effect can be doubled because there is some delay.

The wind which has moved to the position where the front LED module 130 of the accommodation space 111 is mounted through the ventilation path 171 is circulated from the surface of the LED module 130 to circulate the heat rising to the upper part of the accommodation space 111 And is discharged to the outside through an exhaust path 173 formed between the outer circumferential surface of the lower plate 120 and the inner circumferential surface of the cover 110 to be cooled.

That is, the moving path of the wind leading to the intake path 172, the vent path 171, and the exhaust path 173 of the present invention is formed by convection, And circulation and cooling can be performed naturally. In addition, when the ventilation fan 180 is mounted, the circulation effect of the wind can be further increased.

Therefore, the plastic LED luminaire 100 according to the present invention has a structure in which the cover 110 and the plate 120 are made of a plastic material having a low thermal conductivity and a considerably small weight compared to conventional LED lamps made of metal The heat generated in the LED module 130 is transmitted to the surrounding components to minimize various side effects caused by overheating, and furthermore, it is possible to prevent the occurrence of various side effects due to overheating, Cooling and discharging the heat inside the cover 110 as the natural natural air circulates naturally through the cover 171 and the exhaust passage 173, The light weight and high cooling efficiency can be realized while eliminating the mounting of the cooling means such as the complicated and large volume radiating fins, thereby simplifying the structure of the LED lamp 100, There are a variety of advantages, such as that it can be further extended.

100: LED lamp 110: cover
111: accommodation space 112: fastener
120: plate 121:
130: LED module 140: LED ballast
150: louver 160: mounting part
161: upper surfaces 162 and 163:
R1: lateral rib R2: longitudinal rib
171: Ventilation path 172:
173: Ventilation duct 180: Ventilation fan

Claims (2)

1. An LED lighting fixture (100) comprising a cover (110) and a plate (120) having a thermal conductivity lower than that of a metal and mounting an LED module to dim the light;
The upper surface 161 curved in the same shape as the inner circumferential surface of the cover 110 and both side surfaces 162 and 163 closing the left and right sides of the upper surface 161 are formed in the inside space 111 of the cover 110 The LED ballasts 140 are separately housed by coupling the mounting portions 160 to separate the spaces in which the LED modules 130 and the legs 150 are mounted;
The plate 120 includes a plurality of fastening means 112 corresponding to a plurality of fasteners 112 formed on the inner circumferential surface of the cover 110 and having a "B" shape so as to close the lower and rear ends of the cover 110, And is coupled to the lower side of the cover 110;
An intake path 172 is formed at a predetermined interval between the leg insertion port 121 formed at the rear end of the plate 120 and the legs 150 inserted through the leg insertion port 121,
A longitudinal rib R2 and a transverse rib R1 having a height lower than that of the longitudinal rib R2 are formed in a lattice shape on the inner circumferential surface of the cover 110. The top surface 161 of the mounting portion 160 The vertical ribs R2 are spaced apart from each other by a predetermined distance, and the central portion of the lateral rib R1 is formed horizontally or curvedly to form a ventilation path 171;
An exhaust passage 173 is provided between the outer circumferential surface of the plate 120 and the inner circumferential surface of the lower end of the cover 110,
The ventilation fan 180 is further installed in the front accommodation space 111 of the cover 110 on which the LED module 130 is mounted so that the cover 110 The LED ballast 140 is cooled while passing through the upper surface 161 of the mounting portion 160 through the ventilation path 171 and guided to the front of the cover 110 And cooling the LED module (130) while discharging the natural wind through the exhaust passage (173), thereby discharging the LED module (130) through the exhaust passage (173). delete
KR1020160032460A 2016-03-18 2016-03-18 Led lamp of a plastic material with cooling structure KR101656524B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210115753A (en) * 2020-03-16 2021-09-27 주식회사 엔트켐 Cover of Fouling Point Marker and Installing Method Using the Same
KR102319739B1 (en) 2021-05-10 2021-11-01 에스이엘텍 주식회사 Led lamp

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050105631A (en) * 2004-04-30 2005-11-04 에이피엘시스템(주) A street light
KR20090099762A (en) * 2008-03-18 2009-09-23 제천시 Outdoor electric lamp
KR101093182B1 (en) 2011-06-07 2011-12-12 주식회사 대진디엠피 Led light for street light
KR20120116314A (en) * 2011-04-12 2012-10-22 이창민 Led streetlight
KR101267089B1 (en) 2011-04-21 2013-05-24 김재학 LED lighting lamp body
KR101322786B1 (en) 2013-07-26 2013-10-29 주식회사 에피디어 Led streetlight
KR101425939B1 (en) 2012-11-13 2014-08-14 (주)솔라루체 Structure of LED lighting apparatus for street lamp with radiating heat function
KR20150091807A (en) * 2014-02-04 2015-08-12 인지전기공업 주식회사 Street lamp of LED

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050105631A (en) * 2004-04-30 2005-11-04 에이피엘시스템(주) A street light
KR20090099762A (en) * 2008-03-18 2009-09-23 제천시 Outdoor electric lamp
KR20120116314A (en) * 2011-04-12 2012-10-22 이창민 Led streetlight
KR101267089B1 (en) 2011-04-21 2013-05-24 김재학 LED lighting lamp body
KR101093182B1 (en) 2011-06-07 2011-12-12 주식회사 대진디엠피 Led light for street light
KR101425939B1 (en) 2012-11-13 2014-08-14 (주)솔라루체 Structure of LED lighting apparatus for street lamp with radiating heat function
KR101322786B1 (en) 2013-07-26 2013-10-29 주식회사 에피디어 Led streetlight
KR20150091807A (en) * 2014-02-04 2015-08-12 인지전기공업 주식회사 Street lamp of LED

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210115753A (en) * 2020-03-16 2021-09-27 주식회사 엔트켐 Cover of Fouling Point Marker and Installing Method Using the Same
KR102407116B1 (en) * 2020-03-16 2022-06-10 주식회사 엔트켐 Cover of Fouling Point Marker and Installing Method Using the Same
KR102319739B1 (en) 2021-05-10 2021-11-01 에스이엘텍 주식회사 Led lamp

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