KR20090004283A - Electric bulb using high power light-emitting diode - Google Patents

Electric bulb using high power light-emitting diode Download PDF

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Publication number
KR20090004283A
KR20090004283A KR1020070068374A KR20070068374A KR20090004283A KR 20090004283 A KR20090004283 A KR 20090004283A KR 1020070068374 A KR1020070068374 A KR 1020070068374A KR 20070068374 A KR20070068374 A KR 20070068374A KR 20090004283 A KR20090004283 A KR 20090004283A
Authority
KR
South Korea
Prior art keywords
power
driving substrate
screw tab
coupled
bulb
Prior art date
Application number
KR1020070068374A
Other languages
Korean (ko)
Inventor
유병훈
Original Assignee
(주)비스로
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 (주)비스로 filed Critical (주)비스로
Priority to KR1020070068374A priority Critical patent/KR20090004283A/en
Publication of KR20090004283A publication Critical patent/KR20090004283A/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
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • 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
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/235—Details of bases or caps, i.e. the parts that connect the light source to a fitting; Arrangement of components within bases or caps
    • 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
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/0055—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by screwing
    • 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
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • 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

A high output LED(Light Emitting Diode) bulb is provided to discharge the heat to the outside rapidly by forming an annular ventilation layer on a driving substrate. A power converter has an input terminal and an output terminal. A power source base(40) is coupled with an external power socket. The power source base is connected to the input terminal of the power converter. The driving substrate(20) is connected to the output terminal of the power converter. The driving circuit is formed on the driving substrate. The high output LED is mounted on the driving substrate. The case(10) covers the driving substrate. The driving substrate is made of the metal material. The driving substrate is exposed to the outside. The annular ventilation layer is formed between the disk of the metal material of the driving substrate. The power source base has the cylindrical shape. The screw thread is formed in the lower part of the outer circumference of the power source base to be coupled with a female screw part of the power socket.

Description

High Power LED Bulbs {ELECTRIC BULB USING HIGH POWER LIGHT-EMITTING DIODE}

The present invention relates to a high power LED light bulb, and particularly to an LED light bulb using a high power LED, for efficiently dissipating heat through the substrate of the metal on which the high power LED is mounted.

In general, an LED (light-emitting diode) is a light emitting device using the phenomenon that light is generated when a current flows through the PN junction of compound semiconductors such as GaP, GaAs, etc., by controlling the component ratio of the semiconductor compound It can generate light of the wavelength.

Such LEDs are used not only for medical use using a predetermined wavelength but also for promoting plant growth.

 In particular, the power consumption is low and the visibility is high, and recently, it is widely applied as a traffic light, a rear lamp of a vehicle, and an outdoor advertisement signboard, and its range of application is gradually expanded to replace the known lighting means. .

The LED bulb replaces the conventional filament bulb, and is composed of a power base, a power converter, a printed circuit board, an LED, a case, and the like.

The power converter includes an output terminal and an input terminal, and is disposed inside or outside the LED bulb.

The power base is formed to be coupled to an external power socket, and is connected to an input terminal of the power converter.

The printed circuit board is disposed inside the power base and fixed with bolts and nuts, and the driving circuits and elements necessary for the LEDs and the LEDs to operate are mounted.

The printed circuit board is mainly made of a synthetic resin such as an epoxy resin, and may be made of a metal such as aluminum to improve thermal conductivity.

The case is made of a transparent material and is formed in a hemispherical shape, it is combined with the power base to seal the inside.

Recently, high output LEDs with high brightness and high light quantity have been developed, and there is a lot of movement to apply the high output LEDs to conventional LED bulbs.

However, the high power LED generates a lot of heat during light emission.

When the high-power LED is mounted on the LED bulb and used, the inside of the LED bulb is overheated by the high-power LED, thereby degrading the function of the high-power LED bulb and reducing its lifespan.

     The present invention has been made to solve the above problems, in the LED bulb using a high-power LED, to efficiently radiate heat through the substrate of the metal on which the high-power LED is mounted.

     The present invention for achieving the above object,

A power conversion device in which an input terminal and an output terminal are respectively formed; A power base formed to be coupled to an external power socket and connected to an input terminal of the power converter; A driving substrate connected to an output terminal of the power converter and having a driving circuit formed therein; A high output LED mounted on the driving substrate; A case covering the driving substrate; Consists of,

The driving substrate is a high-power LED bulb made of a metal material is exposed to the outside.

       The driving substrate has a shape in which a plurality of disks made of metal are fitted on a cylindrical shaft, and an annular ventilation layer is formed between the disks.

       The power supply base is formed in a cylindrical shape, and forms a screw thread to be coupled to the female threaded portion of the power supply socket at the lower end of the power supply base outer periphery.

     The driving substrate is formed in a cylindrical shape, but the first screw tab and the second screw tab are formed on the outer periphery of the upper and lower, respectively, and the third screw tab screwed with the first screw tab on the lower part of the inner periphery And a fourth screw tab coupled to the second screw tab at an upper portion of the inner circumference of the power base.

      As described above, according to the present invention, the metal substrate on which the high output LED is mounted is exposed to the outside, thereby rapidly dissipating heat to the outside.

      This prevents overheating of the high power LED bulb, which has the effect of extending the life and improving the function.

      The driving substrate is formed with an annular ventilating layer, the contact area between the driving substrate and the air is widened and the heat circulation is fast to prevent the high output LED bulb from overheating, thereby improving the function of the high output LED bulb This has the effect of extending the lifespan.

      The power base is formed in a cylindrical shape, and a thread is formed to be coupled to the female threaded portion of the power socket under the outer periphery of the power base, so that users using the existing filament bulb can easily replace the LED bulb. .

     The drive substrate is formed in a cylindrical shape, but first and second thread tabs are formed on outer peripheries of upper and lower portions, respectively, and third screw tabs are screwed to the first screw tabs on the lower part of the inner periphery of the case. And a fourth screw tab coupled to the second screw tab at an upper portion of the inner circumference of the power base to fasten the case to an upper portion of the driving substrate, and to fasten the power base to a lower portion of the driving substrate.

     In this way, assembling is possible without a separate tool, and the assembly method is simplified, thereby improving productivity.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

1 is a perspective view of a high power LED bulb according to an embodiment of the present invention, Figure 2 is an exploded perspective view of a high power LED bulb according to an embodiment of the present invention, Figure 3 is a high power LED according to an embodiment of the present invention It is a cross section of the bulb.

As shown in Figure 1 and 2, the high-power LED bulb of the present invention is composed of a power conversion device 30, a driving substrate 20, a power base 40, a case 10.

The power conversion device 30 has an output terminal 31 and an input terminal 32 are formed on the upper side and the lower side, respectively, the input terminal 32 is connected to the power base 40, the output terminal 31 ) Is connected to the driving substrate 20.

The power source base 40 is formed in a cylindrical shape with one side open, and the power converter 30 is seated therein.

A lower portion of the power base 40 is formed of a first plug 42 and a second plug 43, and the first plug 42 and the second plug 43 are connected to the input terminal 32, respectively. do.

The first plug 42 is formed of a cylindrical conductor, and a thread 44 is formed on the outer circumference of the first plug 42 so as to be engaged with the female thread of the existing filament bulb socket.

The second plug 43 is formed of a conductor and is coupled to the lower end of the first plug. A ring of non-conductor is formed between the first plug 42 and the second plug 43 so that electricity does not pass through each other.

Since the lower portion of the power base 42 is formed to be fastened to the existing filament bulb socket, users using the existing filament bulb socket can be easily replaced with the high power LED bulb.

The driving substrate 20 is formed by arranging a disk 26 made of a metal material such as aluminum in three stages, and the center of the disk 26 has a cylindrical axis.

As a result, an annular ventilation layer 25 is formed between the discs 26, and the ventilation layer 25 is disposed to be exposed to the outside.

In FIG. 3, the air circulation structure of the said ventilation layer 25 is shown in detail.

As the ventilation layer 25 is formed and exposed to the outside, the contact area with air is widened, and heat is quickly released to the outside, thereby preventing the high power LED bulb from overheating, and thus the high power LED bulb The function is improved, and the life is effective.

A driving circuit 23 connected to the output terminal 31 of the power converter 30 is formed on the driving substrate 20, and the high output LED 24 is mounted.

The case 10 is formed of a transparent or translucent material through which light passes, and has a hemispherical shape.

      The driving substrate 20 has first and second screw tabs 21 and 22 formed on outer peripheries of the upper and lower portions, respectively, and the first screw tabs on the inner periphery of the case 10. A third screw tab 11 is screwed to the screw 21 and a fourth screw tab 41 is formed on the inner circumference of the power supply base 40. .

     The power supply base 40 is fastened and fixed to the lower portion of the driving substrate 20, and the case 10 is fastened and fixed to the upper portion of the driving substrate 20.

     In this way, assembling is possible without a separate tool, and the assembly method is simplified, so that the productivity of the high power LED bulb is improved.

     Of course, a fastening means such as a bolt and a nut or an adhesive may be used, or there may be a method of pressing and fastening.

The present invention has been described above by way of specific embodiments, but the present invention is not limited to the above-described embodiments, and those skilled in the art without departing from the gist of the present invention claimed in the claims. Anyone can make a variety of variations.

1 is a perspective view of a high power LED bulb according to an embodiment of the present invention,

Figure 2 is an exploded perspective view of a high power LED bulb according to an embodiment of the present invention,

3 is a cross-sectional view of a high power LED bulb according to an embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

10: case 11: third thread tap

20: drive substrate 21: first thread tap

22: second screw tab 23: drive circuit

24: High Power Light-Emitting Diode

25: disc 26: ventilation layer

30: power converter 31: input terminal

32: output terminal 40: power base

41: fourth thread tap 42: first plug

43: second plug 44: thread

Claims (4)

A power conversion device in which an input terminal and an output terminal are respectively formed; A power base formed to be coupled to an external power socket and connected to an input terminal of the power converter; A driving substrate connected to an output terminal of the power converter and having a driving circuit formed therein; A high output LED mounted on the driving substrate; A case covering the driving substrate; Consists of, The driving substrate is made of a metal material, but a high power LED bulb characterized in that it is exposed to the outside.    According to claim 1, wherein the driving substrate is a high-power LED bulb, characterized in that the disk made of a plurality of metal material is fitted to the cylindrical shaft is formed between the annular ventilation layer between the disk. The high power LED light bulb of claim 1, wherein the power base has a cylindrical shape, and a thread is formed at a lower portion of the outer circumference of the power base so as to be coupled to a female thread of the power socket. According to claim 1, wherein the drive substrate is made of a cylindrical shape, the first screw tab and the second screw tab is formed on the outer periphery of the upper and lower, respectively, A third screw tab screwed with the first screw tab is formed in the lower portion of the inner circumference of the case And a fourth screw tab coupled to the second screw tab at an upper portion of the inner circumference of the power base.
KR1020070068374A 2007-07-07 2007-07-07 Electric bulb using high power light-emitting diode KR20090004283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070068374A KR20090004283A (en) 2007-07-07 2007-07-07 Electric bulb using high power light-emitting diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070068374A KR20090004283A (en) 2007-07-07 2007-07-07 Electric bulb using high power light-emitting diode

Publications (1)

Publication Number Publication Date
KR20090004283A true KR20090004283A (en) 2009-01-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070068374A KR20090004283A (en) 2007-07-07 2007-07-07 Electric bulb using high power light-emitting diode

Country Status (1)

Country Link
KR (1) KR20090004283A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010101405A2 (en) * 2009-03-05 2010-09-10 Tyco Electronics Amp Korea Ltd. Luminescent device
US8757841B2 (en) 2010-11-08 2014-06-24 Lg Innotek Co., Ltd. Lighting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010101405A2 (en) * 2009-03-05 2010-09-10 Tyco Electronics Amp Korea Ltd. Luminescent device
WO2010101405A3 (en) * 2009-03-05 2010-12-16 Tyco Electronics Amp Korea Ltd. Luminescent device
US8757841B2 (en) 2010-11-08 2014-06-24 Lg Innotek Co., Ltd. Lighting device
US9039242B2 (en) 2010-11-08 2015-05-26 Lg Innotek Co., Ltd. Lighting device

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E601 Decision to refuse application