KR20130117533A - Led street lamp easy to installation and removal of power supply - Google Patents

Led street lamp easy to installation and removal of power supply Download PDF

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Publication number
KR20130117533A
KR20130117533A KR1020120040426A KR20120040426A KR20130117533A KR 20130117533 A KR20130117533 A KR 20130117533A KR 1020120040426 A KR1020120040426 A KR 1020120040426A KR 20120040426 A KR20120040426 A KR 20120040426A KR 20130117533 A KR20130117533 A KR 20130117533A
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KR
South Korea
Prior art keywords
power supply
supply device
emitting diode
lamp housing
light emitting
Prior art date
Application number
KR1020120040426A
Other languages
Korean (ko)
Inventor
이기관
Original Assignee
주식회사 두리계전
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 두리계전 filed Critical 주식회사 두리계전
Priority to KR1020120040426A priority Critical patent/KR20130117533A/en
Publication of KR20130117533A publication Critical patent/KR20130117533A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/162—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to traction or compression, e.g. coil springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

PURPOSE: A light emitting diode streetlight with easy attachment of a power supply device minimizes factors causing traffic congestion by easily and quickly removing a power supply device of an LED streetlight and replacing it with new one. CONSTITUTION: A lamp housing (101) is fixed to the upper end of a light pole (100) of a streetlight. A light emitting diode module (102) is installed at the lower part toward the bottom of the lamp housing. A power supply device (200) is connected to the light emitting diode module and a power supply line (103) and supplies power to a light emitting diode. A receiving chamber receives the power supply device installed on the bottom of the lamp housing. The power supply device is fixed to the receiving chamber by an attachment means.

Description

LED Street Lamp Easy to Installation and Removal of Power Supply

The present invention relates to a light emitting diode street light that can be easily attached or detached from a power supply device, and more particularly, to a light emitting diode street light that can be easily attached to or detached from a power supply device that can be easily mounted or removed from the power supply device.

As is known, in recent years, a small amount of power consumption is low, the maintenance cost is low, LED street light that can be manufactured in a small and light weight is installed.

Such LED street light can be used for more than 10 years of lighting 10 hours a day because the average life time of the LED light source is about 40,000 to 50,000 hours,

In the case of SMPS power supply that supplies power, not only many parts are used but also the design is different according to the manufacturer, so it is very difficult to predict its life time. It must be replaced frequently.

Therefore, an attempt has been made to replace the power supply more easily, and a representative example thereof will be described by Korean Patent No. 1038191 (Invention: Street Light Detachable SMPS Module Device; hereinafter referred to as 'Citation Invention'). Can be.

According to this cited invention, as shown in FIGS. 1 and 2, the outer periphery of the SMPS substrate 52 on which the electronic components of the switch mode power supply 51 (SMPS) are mounted is wrapped with an epoxy outer frame 53 cured with an epoxy resin. The case 3 having the waterproof SMPS module 5 embedded therein is configured to be detachably attached to one surface of the streetlight main body 2 by the bolt, but the case 3 has a vertical portion 31a formed at both ends thereof and its bottom surface. Is provided with a body portion 31 protruding a plurality of coupling bosses 38 for coupling the rear panel 32 and the front panel 32a,

The rear panel 32 and the front panel 32a are coupled to the front and rear surfaces of the body part 31, and one end of the coupling pipe 35 into which the coupling pipe 61 is fitted is fixed to the rear panel 32a. A fixing groove integrally formed at the center portion of the bottom surface of the body portion 31 so as to communicate with the through hole 34 formed therein, and prevents the SMPS module 5 mounted inside the case 3 from being moved left and right. The concave portion 54 is formed in the bottom surface of the epoxy outer frame 53 to correspond to the coupling pipe 35, and the case cover 4 for sealing the upper surface of the case 3 is bolted to the body portion 31. It is made up of the upper coupling.

According to the cited invention as described above, since the case 3 in which the main body 2 of the street lamp 1 and the waterproof SMPS module 5 are built is independently configured to be detachably attached to one surface of the street lamp body 2 by bolts, Although there is an advantage in that the removal work for installation or replacement of the SMPS module 5 is easy, the removal of the case 3 from the street lamp main body 2 when the removal of the SMPS module 5 is performed by Separate the case (3) inserted into the coupling pipe (61) with the street lamp main body (2) in the state in which the worker climbs up to the top and removes only the case (3), inserts a new SMPS module (5) and the coupling pipe (61). ) And the street lamp body (2) using a plurality of bolts and nuts to be reassembled and installed firmly is a problem that the cumbersome and time-consuming cumbersome work is inevitable.

Republic of Korea Patent No. 1038191 (Invention name: Street light removable SMPS module device)

It is an object of the present invention to provide a light emitting diode street light that can be easily removed from the power supply device to remove the power supply of the LED street light in a very simple operation, and to quickly replace a new one in order to solve this problem.

In order to achieve the above object, the present invention provides a lamp housing fixed to the upper end of a street lamp of a street lamp, a light emitting diode module installed below the ground of the lamp housing, and connected to the light emitting diode module and a power supply line to supply power to the light emitting diode. In the LED street light provided with a power supply for supplying,

An accommodating chamber is formed on a lower surface of the lamp housing for accommodating a power supply device inserted into the lamp housing, and an input terminal and an output terminal electrically connected to the power supply apparatus are installed at one side of the accommodating chamber. An input terminal is connected to the power supply line, the output terminal is connected to a light emitting diode module, and an input contact point and an output contact point contacting the input terminal and the output terminal are installed on one side of a circumferential surface of the power supply device, and the power supply A light emitting diode street light is provided which is easily detachable from a power supply device having a detachable means capable of fixing and detaching by at least one fastening and detachment between a supply device and a storage chamber.

In addition, the present invention forms two grooves on the circumferential surface of the power supply device with the detachable means, so that two protrusions protruding and immersed in the storage chamber as the two buttons are manipulated or separated from the two grooves. You can apply one type of thing,

Forming a groove on the circumferential surface of the power supply device by the other type of detachable means, and by operating one button, one protrusion projecting and immersed in the storage chamber is coupled or separated from the one groove,

As the key cylinder is installed below the other circumference of the power supply and the key is inserted into the key cylinder, the stopper rotates during rotation to block the bottom of the chamber and become fitted, or to avoid the bottom of the blocked chamber. The power supply may be of a type so that it can be removed.

In addition, the key cylinder is installed on both sides of the lower side of the other circumferential surface of the power supply device by another form of detachable means so that the key is inserted into the key cylinder, and the stopper rotates during rotation to block both sides of the lower side of the accommodation chamber, The power supply may be of a type that can be removed as it moves to avoid both sides of the lower chamber.

In addition, the present invention forms grooves on both sides of the circumferential surface of the power supply device by another form of detachable means, and a control circuit for supplying current to the solenoid coil is provided by operating a separately provided switch to operate the solenoid coil. The wandering pin coming out by the coupling may be of a type such that the power supply is mounted or removed by being coupled to or separated from the recess of the power supply.

In this way, the present invention is to be able to easily and quickly remove the power supply of the LED street light and replace it with a new one at high heights difficult to work, causing traffic obstacles such as blocking the road for repair of the street light It can be minimized, and effective maintenance and repair work is possible, such as there is a useful effect.

1 is an exploded perspective view showing a configuration of a cited invention.
2 is a side view illustrating an implementation of a cited invention.
Figure 3 is a sectional view showing the overall configuration of a first embodiment of the LED street light easy to be attached and detached of the power supply device according to the present invention.
4 and 5 are explanatory views for explaining the operation of the first embodiment of the LED street light easily detachable of the power supply device according to the present invention.
Figure 6 is a perspective view showing the shape of the power supply of the light-emitting diode street light easily removable of the power supply according to the present invention.
Fig. 7 is a cross-sectional view showing the overall configuration of a second embodiment of a light emitting diode street light that can be easily attached and detached from the power supply device according to the present invention.
8 and 9 are explanatory views for explaining the operation of the second embodiment of the LED street light easily detachable of the power supply device according to the present invention.
Fig. 10 is a sectional view showing the overall configuration of a third embodiment of a light-emitting diode street light that can be easily attached and detached from the power supply device according to the present invention.
11 and 12 are explanatory views for explaining the operation of the third embodiment of the LED street light easily detachable of the power supply device according to the present invention.
Fig. 13 is a sectional view showing the overall configuration of a third embodiment of a light-emitting diode street light that can be easily attached and detached from the power supply device according to the present invention.
14 and 15 are explanatory views for explaining the operation of the third embodiment of the light-emitting diode street light, which is easily detachable from the power supply device according to the present invention;

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

3 to 5 show the overall configuration of a specific embodiment of the LED street light that is easily removable from the power supply device 200 according to the present invention.

As can be seen from the present invention, the lamp housing 101 is fixed to the top of the lamp column 100 of the street lamp, and the light emitting diode module 102 installed in the direction (down) toward the ground of the lamp housing 101 And a power supply device 200 connected to the light emitting diode module 102 and the power supply line 103 to supply power optimized for the light emitting diode.

On the bottom surface of the lamp housing 101 is formed an accommodating chamber 300 for accommodating the power supply device 200 inserted into the inner side (upper) of the lamp housing 101, and on one side of the accommodating chamber 300 An input terminal 301 and an output terminal 302 of the power supply device 200 are installed, the input terminal 301 is connected to the power supply line 103, and the output terminal 302 is the light emitting diode module. And an input contact point 201 and an output contact point 202 contacting the input terminal 301 and the output terminal 302 on one side of the circumferential surface of the power supply device 200 and supplying power. It is provided with a detachable means 400 that can be fixed and detached by one or more fastening and separation between the device 200 and the storage chamber 300.

In the present invention as described above, the power supply device 200 accommodated in the accommodating chamber 300 together with the light emitting diode module 102 on the bottom of the lamp housing 101 is fixed by the detachable means 400, and operated by a simple operation. The power supply device 200 is easily removed by the detachable means 400.

To this end, the present invention forms two grooves 204 on the circumferential surface of the power supply device 200 as shown in FIGS. 3 to 6, and two buttons 501 installed on both sides of the bottom surface of the storage chamber 300. The two protrusions 204 and the stepped protrusions of the power supply device 200 are protruded by the elasticity of the spring 504 in the accommodation chamber 300 or immersed in the spring 504 and immersed. 203 may be applied in a form that is coupled or separated.

The lamp housing 101 fixed to the street lamp column 100 in the present invention is to be installed in a high place, the replacement of the power supply device 200 should be made easily and quickly, as well as firmly not to fall. It is necessary to have a condition to be fixed.

In the present invention, when the two buttons 501 are pushed simultaneously as shown by arrows in the state shown in FIG. 3 to remove the power supply 200, the buttons 501 are springs as shown in FIGS. 4 and 5. While moving 504 in the direction of the arrow and eventually immersed in the storage chamber 300, thereby falling from the state shown in FIG. 4 to the state shown in FIG.

Therefore, after receiving and recovering, replacing with a new power supply device 200 and pushed into the accommodation chamber 300, although the projecting portion 502 protrudes by the elasticity of the spring 504, the projecting portion 502 The power supply device 200 is ligated to the inclined surface 503 of the power supply device 200 and pushes the sunken portion 502 to be seated inside the receiving chamber 300. Since the position is fixed to the stepped 203 while being protruded to 204, the power supply 200 will be in a stable fixed state.

As such, the present invention enables the removal of the failed or failed power supply device 200 and the mounting of a new power supply device 200. FIG. 6 illustrates the power supply device 200 according to the present invention. Seemed to

In addition, the detachable means of FIGS. 3 to 5 illustrated in the present invention may be any structure in which the projecting portion 502 is bitten by the power supply device 200 or immersed in the storage chamber 300 by the button 501. The structure of the detachable means 400 according to the present invention is not limited by these embodiments.

In addition, in the present invention, as shown in FIG. 6, an input contact 201 and an output contact 202 are disposed on an upper surface of the power supply device 200, which is accommodated in the accommodating chamber 300 to the recess 204. The light emitting diode module contacts the input terminal 301 and the output terminal 302 installed at a position corresponding to the inner wall of the accommodating chamber 300 when the projecting part 502 is stably stitched to supply the power supplied from the power supply line 103. It converts into the form suitable for lighting of 102, and supplies it.

In addition, in the present invention, the power supply device 200 is shown as a rectangular parallelepiped for convenience, but it is a matter of course that the accommodation chamber 300 and the power supply device 200 can be in various forms as necessary.

In addition, the present invention in the case of operating both the button 501 and the key cylinder 600 as shown in Figure 7 so that the outsider can not remove the power supply device 200 in the lamp housing 101 of the street lamp It can also be removed.

To this end, in the present invention, as shown in FIGS. 7 and 8, one side of the accommodating chamber 300 has the inclined surface 503 which is inundated by the button 501. The stopper 601, which is fixed to the groove 204 of the apparatus 200 and fixed or separated to be detachable and is normally fixed by the key cylinder 600 as shown in FIG. As shown in FIG. 9, the lower end of the accommodating part is opened while the stopper 601 rotates when the key 602 is inserted into the key cylinder 600 and rotated as shown in FIG. 9. You will be able to remove (200).

Even in such an embodiment, if the new power supply 200 is pushed into the accommodation chamber 300 after removing the power supply device 200 that has reached the end of its life or has failed, one side of the power supply device 200 may appear on the surface 502. While pushing the inclined surface 503 of the (), the indentation 502 is caught and adjusted to the step 203 of the groove 204, while the other side is rotated while the key 602 is put in the key cylinder 600 As the stopper 601 rotates to block the lower end of the accommodation chamber 300, the stopper 601 is returned to the state shown in FIG.

In addition, in the present invention, as shown in FIG. 10, two key cylinders 600 are disposed on both sides of the lower sides of the accommodation chamber 300 so that the removal of the street light power supply 200 by another person is limited, and the key is always The stopper 601 of the cylinder 600 blocks the lower end of the accommodation chamber 300 so that the power supply device 200 does not fall, and the key 602 is inserted into the key cylinder 600 to rotate 602 only. As the stopper 601 is rotated as shown in FIGS. 11 and 12, the lower side of the accommodation chamber 300 may be opened to remove the power supply device 200.

In the present invention, the new power supply device 200 is inserted into the accommodation chamber 300, and the key 602 is rotated while the key 602 is inserted into the key cylinder 600, so that the stopper 601 rotates to both sides of the accommodation chamber 300. It is to prevent the power supply 200 to be fixed in a stable state that does not fall, the input contact 201 and the output contact 202 formed on the upper surface of the power supply 200 is the upper surface of the interior of the receiving chamber 300 The input terminal 301 and the output terminal of the output terminal 302, respectively, of course that can implement a normal lighting function.

In addition, the present invention, as shown in Figure 13, 14 forms a groove 204 having a step 203 on both sides of the circumferential surface of the power supply device 200, the solenoid is provided on both sides of the bottom surface of the lamp housing 101 A retracting pin 701 having an inclined surface 703 having an elasticity projecting by the spring 704 of the coil 700 is coupled to the recess 204 on both sides of the power supply 200 to supply the power supply 200. Is fitted,

A control circuit 705 for supplying current to the solenoid coil 700 is provided by operating the switch 702 provided separately, so that the current flows to the solenoid coil 700 as the switch 702 is operated. As a result of winning the elasticity and attracting the projecting pin 701, as shown in FIG. 15, the projecting pin 701 is detached from the recess 204 of the power supply device 200 so that the power supply device 200 can be removed. will be.

Therefore, the present invention according to this embodiment can be removed by the operation of the switch 702, the immersion pin 701 fitted to the groove 204 on both sides of the power supply device 200 is immersed at the same time to remove the power supply device 200. When the new power supply device 200 is pushed into the accommodation chamber 300, the power supply device 200 enters and is fixed while pushing the inclined surface 703 of the inlet pin 701 so that the stepped portion of the groove 204 may be fixed. 203 is caught by the pin 701 can be fixed in a stable state as shown in FIG.

The present invention as described above is not limited to the above-described embodiment, it is possible to implement in various forms by various combinations and changes of various elements known in the spirit and concept intended by the present invention.

DESCRIPTION OF SYMBOLS 100 Light column 101 Lamp housing 102 Light emitting diode module
103: power supply line 200: power supply device 201: input contact
202: output contact 203: step 204: groove
300: accommodation room 301: input terminal 302: output terminal
400: detachable means 501: button 502: the launcher
503: slope 504: spring 600: key cylinder
601: stopper 602: key 700: solenoid coil
701: inlet pin 702: switch 703: inclined surface
704: spring 705: control circuit

Claims (5)

A lamp housing fixed to an upper end of a lamppost of the street lamp, a light emitting diode module installed below the ground of the lamp housing, and a power supply device connected to the light emitting diode module and a power supply line to supply power to the light emitting diodes; Led led street light,
An accommodating chamber is formed on a lower surface of the lamp housing for accommodating a power supply device inserted into the lamp housing, and an input terminal and an output terminal electrically connected to the power supply apparatus are installed at one side of the accommodating chamber. An input terminal is connected to the power supply line, the output terminal is connected to a light emitting diode module, and an input contact point and an output contact point contacting the input terminal and the output terminal are installed on one side of a circumferential surface of the power supply device, and the power supply Light-emitting diode street light easy to attach and detach the power supply characterized in that the detachable means for fixing and removing by one or more fastening and separation between the supply device and the receiving chamber.
The method of claim 1,
The detachable means forms two grooves on the circumferential surface of the power supply device, and as the two buttons are installed on both sides of the lower side of the storage chamber, the two protrusions protrude to the elasticity of the spring in the storage chamber or overcome the elasticity of the spring. Easily detachable LED street light of the power supply, characterized in that the protrusion is of a type that is coupled to or separated from the two grooves and step of the power supply.
The method of claim 1,
One side of the storage chamber is provided with the inclined surface having the inclined surface while being pushed in and out of the groove of the power supply device provided with the stepped jaw, and a key cylinder is installed so that the stopper rotated by the key cylinder has a lower end of the storage chamber. Light-emitting diode streetlight easy to attach and detach the power supply, characterized in that to prevent, but the key is inserted into the key cylinder and rotated so that the lower portion of the accommodating portion can be opened.
The method of claim 1,
Arrange two key cylinders on both sides of the lower side of the accommodation chamber, and the stopper of the key cylinder always blocks the bottom of the accommodation chamber so that the power supply does not fall, and the stopper is rotated only when the key is inserted into the key cylinder to rotate the storage chamber. The LED street light is easy to attach and detach the power supply, characterized in that to open the lower side to remove the power supply.
The method of claim 1,
A mounting pin having an inclined surface having elasticity projecting by springs of the solenoid coils installed on both sides of the lamp housing is coupled to the grooves on both sides of the power supply device to maintain the mounting state of the power supply device.
A control circuit for supplying current to the solenoid coil is provided by operating the additionally installed switch, so that the actuating pin is sucked by the suction force of the solenoid coil as the switch is operated so that the bite can be released in the grooves on both sides of the power supply device. LED street light easy to attach and detach the power supply characterized in that.
KR1020120040426A 2012-04-18 2012-04-18 Led street lamp easy to installation and removal of power supply KR20130117533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120040426A KR20130117533A (en) 2012-04-18 2012-04-18 Led street lamp easy to installation and removal of power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120040426A KR20130117533A (en) 2012-04-18 2012-04-18 Led street lamp easy to installation and removal of power supply

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101877664B1 (en) * 2017-02-09 2018-07-11 최근대 Light fittings using printed circuit boardcover as cover
KR20180105786A (en) * 2017-03-16 2018-10-01 최근대 Light fittings using printed circuit boardcover as cover
KR102093976B1 (en) * 2019-03-06 2020-03-26 김나경 Automatic coupling apparatus for light device
CN111396834A (en) * 2020-03-24 2020-07-10 广东桂源科技有限公司 L ED disinfection lamp
KR20200116359A (en) * 2019-04-01 2020-10-12 박병기 Edge Type LED Lighting Device
KR102181146B1 (en) * 2020-02-26 2020-11-20 최광현 LED lighting unit
KR102197423B1 (en) * 2020-04-22 2021-01-04 주식회사 엘티 Smart LED Street Lighting System
KR102204293B1 (en) * 2020-04-03 2021-01-18 주식회사 금강에너텍 Converter apparatus for lighting
CN114376381A (en) * 2022-01-20 2022-04-22 湖南城建职业技术学院 Model display device that assembled building engineering used

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101877664B1 (en) * 2017-02-09 2018-07-11 최근대 Light fittings using printed circuit boardcover as cover
KR20180105786A (en) * 2017-03-16 2018-10-01 최근대 Light fittings using printed circuit boardcover as cover
KR102093976B1 (en) * 2019-03-06 2020-03-26 김나경 Automatic coupling apparatus for light device
WO2020180054A1 (en) * 2019-03-06 2020-09-10 김나경 Automatic coupling device for lamp
KR20200116359A (en) * 2019-04-01 2020-10-12 박병기 Edge Type LED Lighting Device
KR102181146B1 (en) * 2020-02-26 2020-11-20 최광현 LED lighting unit
CN111396834A (en) * 2020-03-24 2020-07-10 广东桂源科技有限公司 L ED disinfection lamp
CN111396834B (en) * 2020-03-24 2022-06-17 广东桂源科技有限公司 LED disinfection lamp
KR102204293B1 (en) * 2020-04-03 2021-01-18 주식회사 금강에너텍 Converter apparatus for lighting
KR102197423B1 (en) * 2020-04-22 2021-01-04 주식회사 엘티 Smart LED Street Lighting System
CN114376381A (en) * 2022-01-20 2022-04-22 湖南城建职业技术学院 Model display device that assembled building engineering used
CN114376381B (en) * 2022-01-20 2023-09-26 湖南城建职业技术学院 Model display device that assembled building engineering used

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