JP2003151306A - Bulb with light emitting diode assembled in base of bulb - Google Patents

Bulb with light emitting diode assembled in base of bulb

Info

Publication number
JP2003151306A
JP2003151306A JP2001380713A JP2001380713A JP2003151306A JP 2003151306 A JP2003151306 A JP 2003151306A JP 2001380713 A JP2001380713 A JP 2001380713A JP 2001380713 A JP2001380713 A JP 2001380713A JP 2003151306 A JP2003151306 A JP 2003151306A
Authority
JP
Japan
Prior art keywords
light
substrate
light emitting
bulb
emitting diode
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2001380713A
Other languages
Japanese (ja)
Inventor
Sotoyoshi Kanayama
外芳 金山
Original Assignee
Sotoyoshi Kanayama
外芳 金山
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 Sotoyoshi Kanayama, 外芳 金山 filed Critical Sotoyoshi Kanayama
Priority to JP2001380713A priority Critical patent/JP2003151306A/en
Publication of JP2003151306A publication Critical patent/JP2003151306A/en
Application status is Pending legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-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
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/23Retrofit 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
    • F21K9/232Retrofit 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

(57) [PROBLEMS] A small, economical and efficient device which incorporates several light emitting diodes and a device for converting a commercial voltage into a DC voltage inside a common lamp cap for a commercial voltage. Provide light bulbs. The circuit includes a substrate on which a plurality of light emitting diodes are arranged, and a substrate for a voltage drop voltage adjusting circuit, a rectifying circuit, and a smoothing circuit. Several light emitting diodes 25 are connected to the substrate 10 in series. All the components used for the substrate 20 use chip type components. The substrate 20 is mounted on the lower side of the lamp base, and the substrate 10 on which the light emitting diodes are arranged is stacked thereon. Light bulbs of various colors can be manufactured by combining the colors of the light emitting diodes incorporated in the substrate 10. A light bulb can be formed simply by placing a light-transmissive and directly cover-shaped member on the opening 23 of the base and bonding it. Since the structure of the base and the cover is simple, various shapes of light bulbs can be manufactured. This is a light bulb having the above features.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light bulb using a light-emitting diode with low power consumption as a light-emitting source. And a light bulb incorporating both the light emitting diode described above. 2. Description of the Related Art Conventionally, a light bulb having a light emitting diode mounted on a base for a light bulb uses a resistor, a transformer, or a film capacitor in an AC voltage drop circuit. When incorporated in a base for a light bulb, the down circuit and the rectifying circuit take up space, and it is impossible to incorporate a light emitting diode inside the base. For this reason, a method of attaching the light emitting diode outside the base is used. [0003] When a resistor is used in the AC voltage drop circuit, even if a light emitting diode, which consumes a large amount of power and has high power efficiency, is used as a light source, There was a problem of inefficiency. In addition, the heat generated by the resistor causes the brightness of the light emitting diode to be reduced or to affect other components. When a transformer is used in a descending circuit, a large transformer is required to change the voltage from a commercial voltage to several volts, and in the case of the bulb cap E26, it is the best to put only the transformer in the cap. . For this reason, circuits other than the AC voltage drop circuit and the light emitting diode are mounted outside the base. E17 lamp cap smaller than E26
The transformer could not be incorporated into the E12 base. When a film capacitor is used in a descending circuit, the film capacitor itself is large and the lamp base E is large.
No film capacitor itself entered into 17 or E12. SUMMARY OF THE INVENTION The present invention provides a device which converts a commercial voltage to a DC voltage in a small bulb base and which incorporates several light emitting diodes, which has not heretofore been realized. It is in. In order to achieve the above object, according to the present invention, a chip type ceramic capacitor is used as a capacitor used in a voltage drop voltage adjusting circuit.
Use a chip-type bridge diode for the rectifier circuit.
The chip type is used as the constant current diode and the smoothing capacitor used in the smoothing circuit. A board in which the components used in the circuit are assembled on a single board, and a board in which several light emitting diodes are arranged are arranged in two upper and lower stages, and both boards are housed in a bulb base. The present invention is a light bulb having the above configuration. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment. Inside the bulb base, two substrates, a substrate 10 on which a plurality of light emitting diodes are arranged and a substrate 20 provided with a device for converting a commercial voltage into a DC voltage for lighting the light emitting diodes, are vertically arranged in two stages. Is placed inside the bulb base. A substrate provided with a device for converting the commercial voltage into a DC voltage for lighting a light emitting diode incorporates a voltage drop voltage adjusting circuit, a rectifying circuit, and a smoothing circuit. Since all components used for the substrate 20 are manufactured using small chip type components, all components can be mounted on a substrate having a diameter of about 10 mm. By reducing the size of the substrate in this way, it is possible to incorporate the substrate into the small type E12 of the lamp cap. The substrate 20 has a bulb base installed on a lower side, and a substrate 10 on which light-emitting diodes are arranged is stacked on the base. When incorporated in a bulb base larger than the base of E12, the substrate 10 can be made large. Since the substrate 10 is a substrate dedicated to incorporating a light emitting diode, light emitting diodes can be arranged on the entire substrate. As the size of the substrate 10 increases, it becomes possible to arrange and incorporate a large number of light emitting diodes. Therefore, a brighter light bulb can be manufactured by enlarging the substrate 10. The light-emitting diodes incorporated in the substrate 10 may be of a single color, but light bulbs of various colors can be manufactured by combining red, green, blue, white, orange, and yellow light-emitting diodes. A round ball-shaped acrylic resin 24 is provided as a cover of the electric lamp in the opening 23 of the electric lamp cap incorporating the substrate 10 and the substrate 20, and is fixed with an adhesive. The acrylic resin is filled with impurities such as metal pieces, glass powder, glitter powder, and bubbles for diffusing the light of the light emitting diode. Since all the substrates are housed in the base, this light bulb can be made into a light bulb simply by putting a cover-shaped one directly on the opening 23 and bonding it. FIG. 2 is a diagram showing an electric circuit according to the embodiment. A commercial voltage is supplied to the lamp cap from the side screw portion 21 and the lower protrusion 22. The side screw part 21 and the lower protruding bottom part 22 of the lamp cap in FIG. 1 are connected to the input terminals 31 and 32 of the electric circuit in FIG. Input terminal 3
1 is connected to the primary side of a rectifying bridge diode 34 through a voltage drop voltage adjusting capacitor 33. This capacitor is for lowering the voltage, and the output voltage can be changed by the capacitance of the capacitor. In order to make this capacitor small, a chip type semi-capacitor is used. The other input terminal 3
2 is directly connected to the bridge diode 34. The positive side 35 on the secondary side of the bridge diode is connected to the positive side of the light emitting diode 39 through a constant current diode 37. The secondary minus side 36 of the bridge diode is directly connected to the minus side of the light emitting diode 39. The bridge diode operates as a rectifier circuit. The constant current diode works to prevent overcurrent. The capacitor 38 connected in parallel with the light emitting diode forms a smoothing circuit with the constant current diode 37. The above constant current diode can be replaced by a resistor. All the components used in the above-mentioned circuits are chip-type components to achieve miniaturization. According to the present invention, an electric circuit for converting a commercial voltage into a DC voltage for lighting a light emitting diode is miniaturized, and is incorporated together with a light emitting diode in a lamp base. In this way, a bulb can be formed simply by placing a cover-shaped object directly on the opening of the bulb base and adhering. Since the structure of the lamp cap and the cover is simple, it is easy to produce light bulbs of various shapes. Since the present invention uses a light-emitting diode as a light-emitting source, it can be used as a light bulb of various colors. Further, power consumption is very small and economical.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a partially cut-out light bulb in a substantial form. FIG. 2 is a diagram showing an electric circuit inside a lamp cap in a substantial form. DESCRIPTION OF THE SYMBOLS 10 Substrate on which light emitting diodes are arranged 20 Substrate on which chip components are mounted 21 Bulb side surface screw part 22 Bulb base lower protrusion 23 Bulb base opening 24 Bulb cover 25 Light emitting diode 30 Commercial voltage 31 input terminal 32 input terminal 33 ceramic capacitor 34 bridge diode 35 bridge diode secondary plus side 36 bridge diode secondary side minus 37 constant current diode 38 capacitor 39 light emitting diode

Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) // F21Y 101: 02 F21S 1/02 G

Claims (1)

  1. Claims: 1. A substrate in which a voltage drop voltage adjusting circuit, a rectifier circuit, and a smoothing circuit are incorporated, and a substrate in which several light emitting diodes are arranged are arranged in two upper and lower stages, both of which are inside a lamp base. A light-emitting diode-lit bulb characterized by being stored in 2. A light-emitting diode lighting bulb according to claim 1, wherein all of the components used in said voltage drop voltage adjusting circuit, rectifier circuit and smoothing circuit are chip-type components. . 3. The light-emitting diode lighting bulb according to claim 1, wherein the means of the voltage drop voltage adjusting circuit is a ceramic capacitor. 4. The light bulb of claim 1, wherein said rectifier circuit is a bridge diode. 5. The smoothing circuit means according to claim 1, wherein a constant current diode is connected in series between said bridge diode and said light emitting diode, and a smoothing capacitor is connected in parallel to said light emitting diode. A light-emitting diode-lit bulb according to claim 1. 6. The light bulb for lighting a light emitting diode according to claim 1, wherein an object to be a cover is directly adhered to the opening of the lamp cap.
JP2001380713A 2001-11-09 2001-11-09 Bulb with light emitting diode assembled in base of bulb Pending JP2003151306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001380713A JP2003151306A (en) 2001-11-09 2001-11-09 Bulb with light emitting diode assembled in base of bulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001380713A JP2003151306A (en) 2001-11-09 2001-11-09 Bulb with light emitting diode assembled in base of bulb

Publications (1)

Publication Number Publication Date
JP2003151306A true JP2003151306A (en) 2003-05-23

Family

ID=19187222

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001380713A Pending JP2003151306A (en) 2001-11-09 2001-11-09 Bulb with light emitting diode assembled in base of bulb

Country Status (1)

Country Link
JP (1) JP2003151306A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007032187A1 (en) * 2005-08-24 2007-03-22 World Wide Engineering Co., Ltd. Led lamp light source and automatically lit led desk lamp upon power failure
WO2007055380A1 (en) * 2005-11-14 2007-05-18 Nec Lighting, Ltd. Led lamp
JP2007184500A (en) * 2006-01-10 2007-07-19 Aristo Engineering Pte Ltd Pilot lamp and jig for manufacturing thereof
WO2008071178A1 (en) * 2006-12-15 2008-06-19 Osram Gesellschaft mit beschränkter Haftung Lamp comprising a base and at least light-emitting semiconductor component
JP2009032636A (en) * 2007-07-30 2009-02-12 Topco Technologies Corp Light emitting diode lamp, and lighting system
JP2009038039A (en) * 2008-10-17 2009-02-19 Sanyo Electric Co Ltd Lighting apparatus
JP2009289697A (en) * 2008-05-30 2009-12-10 Toshiba Lighting & Technology Corp Light source device and luminaire
JP2010177712A (en) * 2004-06-30 2010-08-12 Seoul Opto Devices Co Ltd Light emitting element, method of manufacturing the same, and light emitting device using the same
WO2010119618A1 (en) * 2009-04-13 2010-10-21 日東光学株式会社 Light emitting device and bulb-type led lamp
JP2010251683A (en) * 2009-04-10 2010-11-04 Advance Connectek Inc Ac current light emitting diode with constant-current diode
JP2011034547A (en) * 2009-08-05 2011-02-17 Advance Connectek Inc Constant current device and led device using the same
JP2011129285A (en) * 2009-12-16 2011-06-30 Hakubun:Kk Led bulb
JP2011523180A (en) * 2008-06-04 2011-08-04 フォーエバー・バルブ・リミテッド・ライアビリティ・カンパニーForever Bulb, Llc LED bulb device
CN102255523A (en) * 2010-04-22 2011-11-23 Ise科技有限公司 Power supply device having current control circuit capable of correcting power factor
JP2012028723A (en) * 2010-07-21 2012-02-09 Advanced Connectek Inc Dc driver circuit of light-emitting element
US8226270B2 (en) 2007-05-23 2012-07-24 Sharp Kabushiki Kaisha Lighting device

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010177712A (en) * 2004-06-30 2010-08-12 Seoul Opto Devices Co Ltd Light emitting element, method of manufacturing the same, and light emitting device using the same
US8492775B2 (en) 2004-06-30 2013-07-23 Seoul Opto Device Co. Ltd. Light emitting element with a plurality of cells bonded, method of manufacturing the same, and light emitting device using the same
WO2007032187A1 (en) * 2005-08-24 2007-03-22 World Wide Engineering Co., Ltd. Led lamp light source and automatically lit led desk lamp upon power failure
JPWO2007032187A1 (en) * 2005-08-24 2009-03-19 ワールド・ワイド・エンジニアリング株式会社 LED illumination light source and LED stand that automatically turns on at power failure
WO2007055380A1 (en) * 2005-11-14 2007-05-18 Nec Lighting, Ltd. Led lamp
JP2007184500A (en) * 2006-01-10 2007-07-19 Aristo Engineering Pte Ltd Pilot lamp and jig for manufacturing thereof
WO2008071178A1 (en) * 2006-12-15 2008-06-19 Osram Gesellschaft mit beschränkter Haftung Lamp comprising a base and at least light-emitting semiconductor component
US8415895B2 (en) 2006-12-15 2013-04-09 Osram Gesellschaft Mit Beschrankter Haftung Lamp comprising a base and at least one light-emitting semiconductor component
US8226270B2 (en) 2007-05-23 2012-07-24 Sharp Kabushiki Kaisha Lighting device
JP2009032636A (en) * 2007-07-30 2009-02-12 Topco Technologies Corp Light emitting diode lamp, and lighting system
US7888877B2 (en) 2007-07-30 2011-02-15 Top Energy Saving System Corp. Light emitting diode lamp and illumination system
JP2009289697A (en) * 2008-05-30 2009-12-10 Toshiba Lighting & Technology Corp Light source device and luminaire
JP2011523180A (en) * 2008-06-04 2011-08-04 フォーエバー・バルブ・リミテッド・ライアビリティ・カンパニーForever Bulb, Llc LED bulb device
JP2009038039A (en) * 2008-10-17 2009-02-19 Sanyo Electric Co Ltd Lighting apparatus
JP4651702B2 (en) * 2008-10-17 2011-03-16 三洋電機株式会社 Lighting equipment
JP2010251683A (en) * 2009-04-10 2010-11-04 Advance Connectek Inc Ac current light emitting diode with constant-current diode
WO2010119618A1 (en) * 2009-04-13 2010-10-21 日東光学株式会社 Light emitting device and bulb-type led lamp
US8591060B2 (en) 2009-04-13 2013-11-26 Nittoh Kogaku K.K. Light emitting device and bulb-type LED lamp
JP2011034547A (en) * 2009-08-05 2011-02-17 Advance Connectek Inc Constant current device and led device using the same
JP2011129285A (en) * 2009-12-16 2011-06-30 Hakubun:Kk Led bulb
CN102255523A (en) * 2010-04-22 2011-11-23 Ise科技有限公司 Power supply device having current control circuit capable of correcting power factor
JP2012028723A (en) * 2010-07-21 2012-02-09 Advanced Connectek Inc Dc driver circuit of light-emitting element

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