KR20110047457A - Led illumination device to emit light in all directions - Google Patents

Led illumination device to emit light in all directions Download PDF

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Publication number
KR20110047457A
KR20110047457A KR1020090104091A KR20090104091A KR20110047457A KR 20110047457 A KR20110047457 A KR 20110047457A KR 1020090104091 A KR1020090104091 A KR 1020090104091A KR 20090104091 A KR20090104091 A KR 20090104091A KR 20110047457 A KR20110047457 A KR 20110047457A
Authority
KR
South Korea
Prior art keywords
light source
source unit
support
led lighting
leds
Prior art date
Application number
KR1020090104091A
Other languages
Korean (ko)
Inventor
김면수
Original Assignee
주식회사 지에프
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 지에프 filed Critical 주식회사 지에프
Priority to KR1020090104091A priority Critical patent/KR20110047457A/en
Publication of KR20110047457A publication Critical patent/KR20110047457A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S13/00—Non-electric lighting devices or systems employing a point-like light source; Non-electric lighting devices or systems employing a light source of unspecified shape
    • F21S13/02—Devices intended to be fixed, e.g. ceiling lamp, wall lamp
    • F21S13/10—Devices intended to be fixed, e.g. ceiling lamp, wall lamp with a standard, e.g. street lamp
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • 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
    • 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
    • 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
    • F21V29/89—Metals
    • 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
    • F21V7/00—Reflectors for light sources
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

PURPOSE: An LED lighting device which examines the light to a forward direction is provided to increase the energy efficiency and to minimize power loss and heat generation ratio of an LED lightning device. CONSTITUTION: An LED lighting device(100) of a fluorescent lamp type includes an optical source unit(200), a diffusion PC(Poly Carbonate), a base pin(110), and a base(120). The diffusion PC diffuses the light created in the optical source unit to the outside. The diffusion PC performs the function of preventing the damage of the optical source unit. A heat radiation plate is not located on the top of the optical source unit.

Description

Led illumination device to emit light in all directions}

The present invention relates to an LED lighting apparatus that can be irradiated in all directions, and more particularly, to an LED lighting apparatus that irradiates light in all directions using a light source unit having a three-dimensional structure.

LED (Light Emitting Diode) is smaller and longer lifespan than the conventional light source, and because the electric energy is directly converted to light energy, it consumes less power and has a characteristic of emitting high brightness with excellent energy efficiency. Accordingly, various lighting apparatuses using such LEDs as light sources have been developed, and recently, fluorescent lamp type LED lighting apparatuses that can replace existing fluorescent lamps have been disclosed.

On the other hand, in the case of conventional fluorescent lamps, light is emitted around 360 °, but light fixtures using LEDs usually have a light irradiation angle of only about 120 ° and 50% of the light is concentrated in the center 30 ° range. There is a problem that the area is narrow.

The present invention has been proposed in order to solve the above problems, the present invention is an LED for irradiating light in all directions by supporting the light source having a three-dimensional structure and the inside of the three-dimensional light source with a support for performing a heat dissipation function The purpose is to provide a lighting device.

In order to achieve the above object, a plurality of LEDs are fixed, a printed circuit board having a circuit for supplying power to the plurality of LEDs and a plurality of mounted on the surface of the printed circuit board and arranged at equal intervals A light source unit including an LED; And an LED illuminating device capable of irradiating in all directions, including a support part supporting the light source part.

Preferably, the light source unit has a three-dimensional structure, the support portion is provided in the omni-directional irradiating LED lighting apparatus, characterized in that located in the light source portion having a three-dimensional structure to support the light source.

Also preferably, the light source unit has a hollow cylindrical structure, and a plurality of LEDs are mounted on the surface of the printed circuit board of the hollow cylindrical light source unit in the circumferential direction and the height direction, so that the LEDs can be irradiated in all directions. An illumination device is provided.

Also preferably, the support portion has a cylindrical structure having a smaller diameter than the light source portion, and is provided in the omni-directional irradiated LED lighting apparatus, characterized in that located in the hollow cylindrical light source portion to support the light source.

Also preferably, the light source unit has a hollow polygonal columnar structure, and a plurality of LEDs are mounted in the height direction on each pillar surface of the printed circuit board of the hollow polygonal columnar light source unit. Possible LED lighting devices are provided.

Also preferably, the support portion has a polygonal pillar structure having a smaller size than the light source portion, and is located inside the hollow polygonal light source portion to support the light source unit, characterized in that the omni-directional irradiating LED lighting apparatus Is provided.

Preferably, the support is made of aluminum, the support is provided with an LED illumination device that can be irradiated in all directions, characterized in that for absorbing the heat generated by the plurality of LEDs.

Preferably, a thermally conductive material is included between the light source and the support, and the thermally conductive material is a composition formed by mixing any one or more materials of carbon, carbon nanotubes, and graphite with a synthetic resin. LED illumination device that can be irradiated with is provided.

Also preferably, the LED light source can be irradiated in all directions, characterized in that the light source unit having a three-dimensional structure and the support portion located inside the light source unit to support the light source unit is installed in a fluorescent lamp type lamp with a reflector socket. An apparatus is provided.

Also preferably, the omni-directional LED illumination device is characterized in that the light source having a three-dimensional structure and the support portion located inside the light source to support the light source is installed on a stand with a reflector socket. do.

Also preferably, the omni-directional LED lighting apparatus is characterized in that the light source unit having a three-dimensional structure and the support portion located inside the light source unit to support the light source unit is installed on a street lamp with a reflector socket socket. do.

The LED lighting apparatus according to the present invention as described above has the advantage of irradiating light in all directions by supporting the light source unit having a three-dimensional structure and the inside of the three-dimensional light source unit with a support for performing a heat dissipation function. Minimizing the power loss of the lighting device, it is effective to increase the energy efficiency by minimizing the heat generation rate generated from the LED.

DETAILED DESCRIPTION In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a perspective view of a fluorescent lamp type LED lighting apparatus compared to the present invention, Figure 2 is a perspective view of a light source unit used in the fluorescent lamp type LED lighting apparatus of FIG.

Referring to FIG. 1, an LED lighting apparatus 1 of a fluorescent lamp type surrounds a light source unit 10 and a light source unit 10 for irradiating light, and diffuses the unit 30 to transmit light generated from the light source unit 10 to the outside. And a heat sink 20, a base fin 40, and a base 50 positioned at an upper surface of the diffusion part 30 to discharge heat generated from the light source unit 10 to the outside.

FIG. 2 is a light source unit 10 used in FIG. 1, and the light source unit 10 includes a plurality of LEDs 12 and a printed circuit board (PCB) 11. A plurality of LEDs 12 are arranged on the printed circuit board 11 in the form of LED arrays. On the other hand, the printed circuit board 11 has a built-in circuit for fixing the plurality of LEDs 12, and supplies power to the plurality of LEDs (12).

Referring back to FIG. 1, since the heat sink 20 is positioned above the light source unit 10, light irradiated from the light source unit 10 may not be directed upward, and the LED 12 of the light source unit 10 may move downward. Since it faces to, it can be seen that the light is irradiated only in the downward direction. In addition, the angle of light irradiated by the light source unit 10 is about 120 ° because of the characteristics of the LED 12. As a result, the LED lighting device 1 of the fluorescent lamp type shown in FIG. 1 can irradiate light only at an angle of about 120 ° downward, and cannot irradiate light in other directions.

Figure 3 is a perspective view of the LED lighting apparatus of the fluorescent lamp type according to an embodiment of the present invention.

LED lighting apparatus 100 of the fluorescent lamp type according to the present invention surrounds the light source unit 200, the light source unit 200 for irradiating light, and diffused PC (Poly) to transmit and diffuse the light generated from the light source unit 200 to the outside Carbonate) 130, a base pin 110, and a base 120.

Diffusion PC (Poly Carbonate) 130 used in the fluorescent type LED lighting apparatus 100 according to the present invention not only serves to diffuse the light generated from the light source unit 200 to the outside, due to external impact It serves to prevent the light source unit 200 from being damaged.

Compared with the fluorescent lamp type LED lighting device 1 of FIG. 1, the light irradiated from the light source unit 200 of FIG. 3 is not irradiated at an angle of about 120 ° downward, as in FIG. It can be seen that the investigation. To this end, unlike the fluorescent lamp type LED lighting apparatus 100 according to the present invention it can be seen that the heat sink 20 is not located on the upper portion of the light source unit 200. In addition, for this purpose, the light source unit 200 should have a special structure, hereinafter, looks at various embodiments of the LED lighting apparatus that can be irradiated in all directions used in the present invention.

Figure 4a is a perspective view of the cylindrical LED lighting apparatus used in the present invention, Figure 4b is a cross-sectional view of the cylindrical LED lighting apparatus of FIG.

The cylindrical LED lighting apparatus used in the present invention includes a light source unit 200 having a three-dimensional structure and a support unit 300 positioned inside the light source unit 200 having a three-dimensional structure to support the light source unit 200.

The reason why the support part 300 is positioned inside the light source part 200 having a three-dimensional structure in the present invention is that the weight of the light source part 200 when the light source part 200 is fixed to both bases of the LED lighting apparatus of the fluorescent lamp type This causes the central portion of the light source unit 200 to sag downward, to prevent the LED lighting device from malfunctioning.

The light source unit 200 is mounted on the surface of the printed circuit board 210 and the printed circuit board 210 having a circuit which fixes the plurality of LEDs 220 and supplies power to the plurality of LEDs 220 and is arranged at equal intervals. It includes a plurality of LEDs 220.

According to an embodiment of the present invention, the light source unit 200_1 has a hollow cylindrical structure, and a plurality of LEDs 220_1 on the surface of the printed circuit board 210_1 of the hollow cylindrical light source unit 200_1 in the circumferential direction and the height direction. Is mounted. The support part 300_1 has a cylindrical structure having a smaller diameter than the light source part 200_1 and is positioned inside the hollow cylindrical light source part 200_1 to support the light source part 200_1.

Preferably, the support 300_1 may not only serve to support the light source 200_1, but also absorb a heat generated by the plurality of LEDs 220_1.

In FIG. 1, the heat dissipation plate 20 emits heat generated by the light source unit 10 to the outside. In FIG. 3, since the heat dissipation plate 20 was removed to allow the light source unit 200_1 to irradiate light at an angle of 360 °, The support part 300_1 should absorb some of the heat generated by the light source part 200_1.

Therefore, the material of the support part 300_1 is preferably made of aluminum that can absorb heat well.

In addition, the surface of the printed circuit board 210_1 of the light source unit 200_1 and the surface of the support unit 300_1 may be directly bonded, but in order to transfer heat generated from the light source unit 200_1 to the support unit 300_1 better, The thermally conductive material 230_1 may be included between the light source 200_1 and the support 300_1.

The thermally conductive material 230_1 is a composition having a thermally conductive function generated by adding one or more materials of carbon, carbon nanotube (CNT) and graphite to a synthetic resin, and mixing these materials.

In this case, the synthetic resin is applied by selecting a resin such as PMMA (Poly methy methacrylate: polymethyl methacrylate), epoxy, silicone which can perform unit operation of the thermal conductivity according to the addition of carbon, CNT, graphite. On the other hand, the application of the mixed composition of the synthetic resin and carbon, CNT, graphite is preferably selected in consideration of the specifications of the product.

According to another embodiment of the present invention, the light source unit 200 has a hollow polygonal columnar structure, and a plurality of light sources 200 in the height direction on each pillar surface of the printed circuit board 210 of the hollow polygonal columnar light source unit 200. LED 220 is mounted. The support part 300 has a polygonal columnar structure having a smaller size than the light source part 200 and is positioned inside the hollow polygonal light source part 200 to support the light source part 200.

Hereinafter, a triangular prism type LED lighting device and a square pillar type LED lighting device will be described as an example among numerous polygonal pillar structures.

Figure 5a is a perspective view of the triangular prism LED lighting apparatus used in the present invention, Figure 5b is a cross-sectional view of the triangular prism LED lighting apparatus of FIG.

The light source unit 200_2 has a hollow triangular prism structure, and a plurality of LEDs 220_2 are mounted in the height direction on each column surface of the printed circuit board 210_2 of the hollow triangular prism light source unit 200_2. The support part 300_2 has a triangular prism structure having a smaller size than the light source part 200_2, and is located in the hollow triangular prism light source part 200_2 to support the light source part 200_2.

On the other hand, the support 300300 is preferably made of an aluminum material that can absorb heat well.

In addition, the surface of the printed circuit board 210_2 of the light source unit 200_2 and the surface of the support unit 300_2 may be directly bonded, but in order to transfer heat generated from the light source unit 200_2 to the support unit 300_2 better. The thermally conductive material 230_2 may be included between the light source 200_2 and the support 300_2.

Figure 6a is a perspective view of a square column type LED lighting device used in the present invention, Figure 6b is a cross-sectional view of the square column type LED lighting device of FIG.

The light source unit 200_3 has a hollow rectangular columnar structure, and a plurality of LEDs 220_3 are mounted on the column surfaces of the printed circuit board 210_3 of the hollow rectangular columnar light source unit 200_3 in the height direction. The support part 300_3 has a rectangular pillar-shaped structure smaller in size than the light source part 200_3 and is positioned inside the hollow rectangular columnar light source part 200_3 to support the light source part 200_3.

On the other hand, the support 300300 is preferably made of an aluminum material that can absorb heat well.

In addition, although the surface of the printed circuit board 210_3 of the light source unit 200_3 and the surface of the support unit 300_3 may be directly bonded to each other, in order to transfer heat generated from the light source unit 200_3 to the support unit 300_3 better, The thermally conductive material 230_3 may be included between the light source 200_3 and the support 300_3.

FIG. 7A is a perspective view of an LED lighting apparatus in which a plurality of light source units are disposed on each side of a square pillar as a square pillar LED lighting apparatus used in the present invention, and FIG. 7B is a cross-sectional view of the LED pillar lighting apparatus of FIG. 7A. to be.

7A and 7B, as shown in FIGS. 6A and 6B, the light source unit 200_4 has a hollow quadrangular columnar structure, and the support unit 300_4 has a square columnar structure that is smaller in size than the light source unit 200_4. The light source unit 200_4 is positioned inside the rectangular columnar light source unit 200_4.

However, unlike FIGS. 6A and 6B, a plurality of LEDs 220_4 are mounted in a plurality of LED array shapes in the height direction on each column surface of the printed circuit board 210_4 of the hollow rectangular columnar light source 200_4. That is, in FIG. 6A and FIG. 6B, one LED array is arranged on each pillar surface, while in FIG. 7A and FIG. 7B, three LED arrays are arranged on each pillar surface.

Figure 8 is a first application example of the LED lighting apparatus according to the present invention.

According to the present invention, a light source unit 200 having a three-dimensional structure and a support unit 300 positioned inside the light source unit 200 to support the light source unit 200 may include an reflector socket 140. ) Can be installed in fluorescent lamps with lights.

Specifically, FIG. 8 illustrates that the fluorescent lamp type LED lighting device 100 of FIG. 3 is coupled to the reflector socket 140. On the other hand, since the LED lighting device 100 of the fluorescent lamp type used in FIG. 8 is an LED lighting device that can be irradiated in all directions, the light can also be irradiated in the direction of the reflector socket 140 (that is, the upper direction). The light irradiated in the upward direction is reflected from the bottom of the reflector socket 140 and then directed downward. Due to this, the illumination intensity of the LED lighting device is personalized, thereby minimizing the power loss of the LED lighting device, and minimizing the heat generation rate generated from the LED, thereby increasing energy efficiency.

Figure 9 is a second application example of the LED lighting apparatus according to the present invention.

The omnidirectionally illuminating LED lighting apparatus according to the present invention includes a light source unit 200 having a three-dimensional structure and a support unit 300 positioned inside the light source unit 200 to support the light source unit 200. ) May be installed on the stand 400 attached thereto.

Specifically, FIG. 9 illustrates that the fluorescent lamp type LED lighting device 100 of FIG. 3 is coupled to the reflector socket 410. The stand 400 includes a main body 420 and a reflector plate socket 410, and the light irradiated upwardly of the fluorescent lamp type LED lighting apparatus 100 is reflected from the lower side of the reflector plate socket 410 and is directed downward. . Due to this, the illumination intensity of the LED lighting device is personalized, thereby minimizing the power loss of the LED lighting device, and minimizing the heat generation rate generated from the LED, thereby increasing energy efficiency.

10 is a third application example of the LED lighting apparatus according to the present invention.

The omnidirectionally irradiated LED lighting apparatus according to the present invention includes a light source unit 200 having a three-dimensional structure and a support unit 300 positioned inside the light source unit 200 to support the light source unit 200. ) May be installed in the attached streetlight 500.

Specifically, FIG. 10 illustrates that the fluorescent lamp type LED lighting device 100 of FIG. 3 is coupled to the reflector socket 510. The street light 500 includes a post 520, a reflector socket 510, and a head 530. The light irradiated upwardly of the fluorescent type LED lighting device 100 is reflected from the lower portion of the reflector plate socket 510 and passes through the head 530 to be directed downward. Due to this, the illumination intensity of the LED lighting device is personalized, thereby minimizing the power loss of the LED lighting device, and minimizing the heat generation rate generated from the LED, thereby increasing energy efficiency.

As described above, optimal embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not intended to limit the scope of the present invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a perspective view of the LED lighting apparatus of the fluorescent lamp type compared to the present invention.

2 is a perspective view of a light source unit used in the fluorescent lamp type LED lighting apparatus of FIG.

Figure 3 is a perspective view of the LED lighting apparatus of the fluorescent lamp type according to an embodiment of the present invention.

Figure 4a is a perspective view of a cylindrical LED lighting apparatus used in the present invention.

4B is a cross-sectional view of the cylindrical LED lighting apparatus of FIG. 4A.

Figure 5a is a perspective view of a triangular prism type LED lighting device used in the present invention.

5B is a cross-sectional view of the triangular prism type LED lighting device of FIG. 5A.

Figure 6a is a perspective view of a rectangular columnar LED lighting device used in the present invention.

FIG. 6B is a cross-sectional view of the rectangular columnar LED lighting device of FIG.

7A is a perspective view of an LED lighting apparatus in which a plurality of light source units are disposed on each side of the square pillar as a square pillar type LED lighting apparatus used in the present invention.

FIG. 7B is a cross-sectional view of the rectangular columnar LED lighting device of FIG.

Figure 8 is a first application example of the LED lighting apparatus according to the present invention.

Figure 9 is a second application example of the LED lighting apparatus according to the present invention.

10 is a third application example of the LED lighting apparatus according to the present invention.

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

100: fluorescent type LED lighting device, 110: base pin

120: base, 130: diffusion PC

140: reflector socket, 200: light source

210: printed circuit board, 220: LED

230: thermally conductive material, 300: support

400: stand, 410: reflector socket

420: main body, 500: street light

510: reflector socket, 520: prop

530: head

Claims (9)

A light source unit including a printed circuit board having a plurality of LEDs fixed thereto and a circuit for supplying power to the plurality of LEDs, and a plurality of LEDs mounted on a surface of the printed circuit board and arranged at equal intervals; And LED illuminating device which can be irradiated in all directions, characterized in that it comprises a support for supporting the light source. The method of claim 1, The light source unit has a three-dimensional structure, And the support part is located inside the light source unit having a three-dimensional structure to support the light source unit. The method of claim 2, And the light source unit has a hollow cylindrical structure, and a plurality of LEDs are mounted on a surface of the printed circuit board of the hollow cylindrical light source unit in a circumferential direction and a height direction. The method of claim 3, The support unit has a cylindrical structure having a smaller diameter than the light source unit, and is located in the hollow cylindrical light source unit to support the light source in all directions, characterized in that for supporting the light source. The method of claim 2, And the light source unit has a hollow polygonal columnar structure, and a plurality of LEDs are mounted on each pillar surface of the printed circuit board of the hollow polygonal columnar light source unit in a height direction. The method of claim 5, And the support portion has a polygonal pillar structure having a smaller size than the light source portion, and is positioned inside the hollow polygonal light source portion to support the light source portion. The method of claim 1, The support is made of aluminum, The support unit can be irradiated in the omni-directional LED lighting apparatus, characterized in that for absorbing the heat generated by the plurality of LEDs. The method of claim 1, A thermally conductive material is included between the light source unit and the support unit, The thermally conductive material is an omni-directional LED illumination device, characterized in that the composition produced by mixing any one or more materials of carbon, carbon nanotubes, graphite in the synthetic resin. The method of claim 2, The light source unit having a three-dimensional structure and the support portion positioned inside the light source unit to support the light source unit is installed in a fluorescent lamp-type lighting lamp with a reflecting plate socket, omni-directionally irradiated LED lighting apparatus.
KR1020090104091A 2009-10-30 2009-10-30 Led illumination device to emit light in all directions KR20110047457A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101430753B1 (en) * 2012-11-23 2014-08-18 박명화 LED bulb for streetlights, crime light, or ambient light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101430753B1 (en) * 2012-11-23 2014-08-18 박명화 LED bulb for streetlights, crime light, or ambient light

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