KR20120017197A - Led lamp - Google Patents

Led lamp Download PDF

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Publication number
KR20120017197A
KR20120017197A KR1020100079739A KR20100079739A KR20120017197A KR 20120017197 A KR20120017197 A KR 20120017197A KR 1020100079739 A KR1020100079739 A KR 1020100079739A KR 20100079739 A KR20100079739 A KR 20100079739A KR 20120017197 A KR20120017197 A KR 20120017197A
Authority
KR
South Korea
Prior art keywords
light emitting
light
main body
led
shape
Prior art date
Application number
KR1020100079739A
Other languages
Korean (ko)
Inventor
권종섭
Original Assignee
일광전기주식회사
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 일광전기주식회사 filed Critical 일광전기주식회사
Priority to KR1020100079739A priority Critical patent/KR20120017197A/en
Publication of KR20120017197A publication Critical patent/KR20120017197A/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
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/30—Hazard lights
    • 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]

Abstract

The present invention relates to an LED bulb, and more particularly, to form a light emitting unit having a plurality of LED elements arranged in the main body, the light emitted from the light emitting unit is evenly distributed to the side region and the lower region to suppress the generation of the shaded region To one LED light bulb.

Description

LED bulb {LED LAMP}

The present invention relates to an LED bulb, and more particularly, to form a light emitting unit having a plurality of LED elements arranged in the main body, the light emitted from the light emitting unit is evenly distributed to the side region and the lower region to suppress the generation of the shaded region To one LED light bulb.

A typical incandescent light bulb is one of lighting lamps that have been widely used for a long time with fluorescent lamps because it can emit light close to natural light to reduce eye fatigue and can be easily detached from a socket.

However, the incandescent light bulb has a disadvantage in that most energy is released as heat and only a part of energy is converted into light, and thus the thermal efficiency is extremely low, and periodic replacement is required because the life of the filament itself is short.

On the other hand, recently, various types of light emitting diode (LED) devices have been developed that have a long life and do not require frequent replacement, and consume less power and emit a lot of light, thereby having an excellent energy efficiency. The development and dissemination of LED bulbs with the light emitting source is gradually spreading.

However, the LED bulb employing a conventional LED element, unlike the incandescent bulb, the light is not irradiated to the side of the LED bulb is unnatural illumination is pointed out, and thus the user is reluctant to use the LED bulb.

That is, the LED bulbs employing the conventional LED element as the light emitting source, in the form of a light emitting unit arranged with a plurality of LED elements on a flat circuit board below the main body, LED bulbs provided with such a light emitting unit is generated by the LED elements The light is not irradiated to the side region but irradiated only to the lower region, and this problem is further exacerbated by the inherent characteristic of the light emitted from the LED device, that is, the straightness of the light.

Therefore, the conventional LED bulbs have been utilized only for the purpose of irradiating local areas such as toilets and entrances, and their use is limited to lighting in a large indoor space.

An object of the present invention devised to solve the above problems is to provide a light emitting portion of an improved shape in the main body, the light generated from the LED elements constituting the light emitting portion is evenly distributed to the side region and the lower region shaded region The present invention proposes an LED bulb that is prevented from generating.

The above object is achieved by the following configuration provided in the present invention.

LED bulb according to the present invention,

An LED bulb comprising a main body, a light emitting part disposed below the main body to emit light, and a terminal part which is a current supply path of the light emitting part,

In the main body, a light emitting part in which LED elements are disposed on a circuit board is formed to protrude downward, and the light emitting part has a wide upper image and a narrower image shape that gradually decreases in diameter toward the bottom thereof. It is arranged in a configuration, characterized in that the light generated by the LED element of the light emitting unit is emitted to the side region and the lower region.

Preferably, the main body is formed to project a downwardly narrow projection, and the outer surface of the projection is wrapped with a light emitting unit having a plurality of LED elements disposed on a circuit board composed of F-PCB (FLEXIBLE PRINTED CIRCUITS BOARD) It is configured to form a light emitting portion having a shape of light narrowing down in the lower part of the main body.

More preferably, the main body is formed so that the projection of the upper and lower shape is projected downward, the outer surface of the projection is configured to surround the circuit board on which the LED elements are disposed to form a light emitting portion of the upper and lower shape. The protrusion wrapped by the light emitting unit and the main body connected to the light emitting unit are made of a heat dissipation material having excellent thermal conductivity, so that heat generated from the LED element of the light emitting unit is dissipated to the outside along the protrusion and the main body.

In addition, a reflecting plate is provided on the bottom of the main body, and the light diffused upward through the LED element of the light emitting unit is reflected by the reflecting plate to the lower region and the side region to be emitted.

As described above, the LED bulb according to the present invention has a light emitting part in which a plurality of LED elements are disposed in a radial structure on an inclined outer wall in a shape of a light beam, so that side and bottom areas do not have to be formed on the side and bottom, respectively. Since it is possible to emit light evenly, the generation of the shaded area can be prevented.

In particular, the light emitting unit is composed of the F-PCB having excellent flexibility in the form of the LED elements are disposed, it is possible to surround the outer surface of the protrusion with a single circuit board without connecting a plurality of circuit boards on which the LED element is disposed As a result, the auxiliary cost of the production can be reduced and the convenience of the production can be achieved.

In addition, the F-PCB adopted as the circuit board is in close contact with the outer surface of the protrusion made of a heat-dissipating material, and heat generated in the high-brightness LED device is quickly discharged to the outside through the protrusion, so that thermal damage of the LED element and the F-PCB is performed. Prevention is possible.

1 is an exploded state diagram showing the overall configuration of an LED bulb proposed as a preferred embodiment in the present invention,
2 is a view showing a coupling state of the LED bulb proposed in the preferred embodiment of the present invention,
Figure 3 is a working state diagram showing the state of light divergence through the LED bulb proposed as a preferred embodiment in the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the LED bulb proposed in the preferred embodiment of the present invention.

1 is an exploded state diagram showing the overall configuration of the LED bulb proposed as a preferred embodiment in the present invention, Figure 2 is a view showing a combined state of the LED bulb proposed as a preferred embodiment in the present invention, Figure 3 is It is a working state diagram showing the state of light divergence through the LED bulb proposed as a preferred embodiment in the present invention.

LED bulb 1 proposed as a preferred embodiment in the present invention, as shown in Figures 1 to 3, the main body 10 and the light emitting portion 30 is disposed below the main body 10 to emit light It is configured to include).

The light emitting unit 30 has a shape in which a plurality of LED elements 32 are formed on the circuit board 31 so as to be shaped, and an outer diameter terminal of the center terminal 21 and a spiral is formed on the main body 10. A screw type terminal portion 20 composed of 22 is formed, and the light emitting portion 30 forms a contact with the lead wire L through fastening with the socket 100 through the screw type terminal portion 20.

In this case, a converter 40 is installed between the screw terminal unit 20 and the circuit of the light emitting unit 30, and the alternating current applied to the LED elements 32 constituting the light emitting unit 30 through the lead wire L. Is not directly applied, and is turned on by receiving the DC current converted through the converter 40.

As shown in the drawing, the terminal unit 20 is fixed to the upper portion of the main body 10 through the fixing cap 23, and the converter 40 is embedded in the fixing cap 23.

On the other hand, in the present embodiment in implementing such an LED bulb 1, by improving the shape of the light emitting portion 30 by configuring the light emitted from the light emitting portion 30 is evenly distributed to the lower region and the side region In addition, the illuminance of the entire indoor space can be increased by evenly dissipating light through the light emitting unit 30.

To this end, in the present embodiment, the light emitting unit 30 is configured to have a truncated conical shape as shown in the drawing, and a plurality of LED elements 32 are arranged in a radial structure on an outer surface thereof. However, in addition to the truncated cone as shown in the drawing, the shape of the light emitting part may be modified into a normal and narrow shape in which the upper part is wider and the diameter gradually decreases toward the lower part, such as a truncated cone, a cone, an elliptical cone, an elliptical truncated cone, a pyramid, and a pyramid.

At this time, the outer surface of the light emitting portion 30 which is configured to be inclined to the above-mentioned light and narrow angle has an inclination angle of 10 ° to 80 °.

As described above, when the light emitting part 30 protruding downward in the shape of normal light is formed on the main body 10, the light emitting part 30 does not emit light only in any one of the lower region and the side region, Since it evenly emits light to the lower area, it is possible to increase the uniform illuminance of the entire interior space.

Referring to the drawings, in the present embodiment, the main body 10 is formed to protrude downwardly from the upper and lower narrow protrusions 11 having a wider and narrower diameter as the lower portion thereof protrudes, and the outer surface of the protruding portion 11 is formed. Wrapped with a circuit board 31 in which the LED elements 32 are disposed, the light emitting part 30 having a plurality of LED elements 32 arranged in a radial structure on the outer surface of the lower surface protrudes downward from the main body 10. It is formed.

At this time, if the circuit board 31 constituting the light emitting unit 30 is composed of F-PCB (FLEXIBLE PRINTED CIRCUITS BOARD) having excellent flexibility, it is not necessary to connect a plurality of circuit boards having an LED element It is possible to wrap the outer surface of the protrusion with a circuit board.

As a result, the plurality of circuit boards on which the LED elements are disposed may be brought into close contact with the outer surface of the protrusions, and the inconvenience of forming a contact point through soldering or the like may be eliminated between them, thereby improving productivity and convenience of manufacturing. Can be planned.

In addition, when the reflecting plate 33 is installed on the upper portion of the light emitting unit 30 having a light beam narrow shape as in the present embodiment, as shown in FIG. 33 is emitted to the lower region and the side region, it can be suppressed the phenomenon that the light efficiency is lowered by the light partially lost to the upper portion.

In addition, the main body 10 is formed by the insulating layer 10a through electrostatic processing, etc., in order to have insulation with the circuit board 31 constituting the light emitting portion 30, and the insulating layer does not reflect light but absorbs it. It has a black color.

However, when the reflecting plate 33 is installed on the bottom surface of the main body 10 in which the downwardly protruding light emitting portion 30 is formed as in the present embodiment, light is absorbed through the insulating layer 10a of the main body 10, thereby providing light efficiency. This deterioration phenomenon can be prevented.

At this time, the edge of the reflecting plate 33 forms an inclination angle A 'of 33 °, and stably reflects the light emitted upward to the lower region and the side region.

In addition, in the present embodiment, the LED element constituting the light emitting portion 30 by adding a heat dissipation structure for stably discharging the heat generated by each LED element 32 to the outside in the process of light emission through the heat dissipation portion ( 32) thermal damage is suppressed.

To this end, in the present embodiment, the main body 10 and the protruding portion 11 formed to protrude in the lower portion of the main body and covered by the light emitting portion 30 are composed of a heat dissipating material such as aluminum or copper having excellent thermal conductivity. Doing.

Referring to the drawings, a plurality of heat dissipation pieces 12 are formed in a radial structure on the outer surface of the main body 10 to increase the heat dissipation area through the heat dissipation pieces 12.

When the main body 10 and the protrusions 11 are formed of a heat dissipating material as described above, the heat generated from each of the LED elements 32 of the light emitting unit 30 is formed of the heat dissipating material of the protrusions 11 and the main body 10. Since it is quickly conducted to the outside through the outside to be discharged to the outside, thermal damage of each LED element 32 forming the light emitting portion 30 can be prevented.

In addition, in the present embodiment, the diffusion cap 50 made of a translucent material is overlaid on the light emitting part 30 which is formed to protrude downward in the main body 10 and emits light to the lower region and the side region.

At this time, the diffusion cap 50 is made of a plastic material having a predetermined elasticity, as shown in the drawing to form a concave annular indentation groove 13 in the lower edge of the main body 10, the diffusion cap 50 A protruding annular indentation protrusion 51 is formed at an inner diameter of the diffusion cap 50 which surrounds the outside of the light emitting part 30 by elastic indentation of the annular indentation groove 13 and the annular indentation protrusion 51. ) Is fixed to the lower part of the main body 10.

As such, when the light emitting unit 30 is overlaid by the diffusion cap 50, direct external exposure of the LED devices 32 emitting high brightness light is suppressed, and thus glare is caused by the light emitted from the LED devices 32. Occurrence can be prevented.

1. LED bulb
10. Body 10a. Insulating layer
11.protrusion
12. Heat dissipation piece 13. Annular indentation groove
20. Terminal 21. Center terminal
22. OD terminal 23. Cap
30. Light emitting part 31. Circuit board
32. LED device
33. Reflector
40. Converter 50. Diffusion Cap
51. Annular indentation protrusion
100. Socket L. Lead wire

Claims (4)

In the LED bulb comprising a main body, a light emitting portion disposed below the main body to emit light, and a terminal portion which is a current supply path of the light emitting portion,
The main body has a light emitting part in which LED elements are disposed on a circuit board so as to protrude downward, and the light emitting part has a wide upper portion and a narrower image shape that gradually decreases in diameter toward a lower portion thereof. LED light bulb, characterized in that arranged in, the light emitted from the LED element of the light emitting portion is emitted to the side region and the lower region. The light emitting device of claim 1, wherein the main body has a projection having a shape of a light beam, and a light emitting part having a plurality of LED elements disposed on a circuit board composed of F-PCB (FLEXIBLE PRINTED CIRCUITS BOARD) on an outer surface of the projection. An LED bulb, characterized in that the portion is wrapped to form a light emitting portion having a shape below the body. The method of claim 1, wherein the body is formed to project a downwardly protruding shape downward, the outer surface of the protruding portion is configured to surround the circuit board on which the LED elements are disposed to form a light emitting portion of the upper and lower narrow shape, The projecting part wrapped by the light emitting part and the main body connected thereto are made of a heat dissipation material having excellent thermal conductivity, so that the heat generated by the LED element of the light emitting part is configured to be dissipated to the outside along the protruding part and the main body. The LED bulb according to claim 1, wherein a reflecting plate is provided on a bottom of the main body, and the light diffused upward through the LED elements of the light emitting part is reflected by the reflecting plate to the lower region and the side region to emit light.
KR1020100079739A 2010-08-18 2010-08-18 Led lamp KR20120017197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100079739A KR20120017197A (en) 2010-08-18 2010-08-18 Led lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100079739A KR20120017197A (en) 2010-08-18 2010-08-18 Led lamp

Publications (1)

Publication Number Publication Date
KR20120017197A true KR20120017197A (en) 2012-02-28

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ID=45839208

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100079739A KR20120017197A (en) 2010-08-18 2010-08-18 Led lamp

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130124819A (en) * 2012-05-07 2013-11-15 엘지이노텍 주식회사 Lighting device
KR101428700B1 (en) * 2013-04-19 2014-08-11 한국광기술원 Led lighting device
US11351218B2 (en) 2019-02-12 2022-06-07 University-Industry Cooperation Group Of Kyung Hee University Composition for preventing or treating glioblastoma comprising Platycodon grandiflorum A. De Candolle, Scutellaria baicalensis, Phellodendron amurense Ruprecht or Rubus coreanus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130124819A (en) * 2012-05-07 2013-11-15 엘지이노텍 주식회사 Lighting device
KR101428700B1 (en) * 2013-04-19 2014-08-11 한국광기술원 Led lighting device
US11351218B2 (en) 2019-02-12 2022-06-07 University-Industry Cooperation Group Of Kyung Hee University Composition for preventing or treating glioblastoma comprising Platycodon grandiflorum A. De Candolle, Scutellaria baicalensis, Phellodendron amurense Ruprecht or Rubus coreanus

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E601 Decision to refuse application