EP2083210A1 - LED lamp - Google Patents

LED lamp Download PDF

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Publication number
EP2083210A1
EP2083210A1 EP08001210A EP08001210A EP2083210A1 EP 2083210 A1 EP2083210 A1 EP 2083210A1 EP 08001210 A EP08001210 A EP 08001210A EP 08001210 A EP08001210 A EP 08001210A EP 2083210 A1 EP2083210 A1 EP 2083210A1
Authority
EP
European Patent Office
Prior art keywords
beam lamp
led beam
mainbody
led
support frame
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.)
Ceased
Application number
EP08001210A
Other languages
German (de)
French (fr)
Inventor
Xinshen Xue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Civilight Shenzhen Semiconductor Lighting Co Ltd
Original Assignee
Civilight Shenzhen Semiconductor Lighting Co Ltd
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 Civilight Shenzhen Semiconductor Lighting Co Ltd filed Critical Civilight Shenzhen Semiconductor Lighting Co Ltd
Priority to EP08001210A priority Critical patent/EP2083210A1/en
Publication of EP2083210A1 publication Critical patent/EP2083210A1/en
Ceased legal-status Critical Current

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Classifications

    • 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
    • F21V23/006—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 being distinct from the light source holder
    • 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
    • F21K9/233—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 a spot light distribution, e.g. for substitution of reflector lamps
    • 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
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/023—Power supplies in a casing
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
    • 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
    • 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]

Definitions

  • the present invention relates to semiconducting lighting devices. More particularly, the present invention relates to a LED beam lamp.
  • LEDs Light-emitting Diode
  • beam lamps which have high lumen efficiency and benefit energy conservation and environmental protection. Therefore, LED beam lamps are widely used in our lives.
  • the conventional LED lamps have some disadvantages.
  • the LED keeps generating heat during lighting but it is difficult to dissipate the heat.
  • the range of the lighting angle is often small and difficult to gain appreciable lighting performance.
  • the purpose of the present invention is to provide a LED beam lamp with high heat dissipating performance and steady lighting performance.
  • One embodiment of the present invention provides a LED beam lamp, which includes a mainbody and a support frame attached to the mainbody.
  • the mainbody includes a board for mounting at least one LED and a light transmitting device.
  • the mainbody is configured to a lookalike round platform and has a bigger top opening, a smaller bottom opening and a round sidewall, a plurality of grooves is defined in the round sidewall.
  • a power supply unit being made of planar transformer is accommodated into the support frame and applies constant current scheme to supply current for the LED beam lamp.
  • the LED beam lamp in accordance with the present invention has unique heat dissipating structure, which enhances heat dissipating speed and provides a solution of heat dissipating difficulty for products in present market. Furthermore, the LED beam lamp applies inner power supply unit and constant current scheme so that the lighting becomes steadier and higher qualified, meanwhile the working life of the LED beam lamp is extended.
  • FIG. 1 is an exploded perspective view of a LED beam lamp in first embodiment in accordance with the present invention
  • FIG. 2 is a perspective view of the assembled LED beam lamp in the first embodiment in accordance with the present invention.
  • FIG. 3 is an exploded perspective view of a LED beam lamp in second embodiment in accordance with the present invention.
  • FIG. 4 is a perspective view of the assembled LED beam lamp in the second embodiment in accordance with the present invention.
  • FIG. 5 is an exploded perspective view of a LED beam lamp in third embodiment in accordance with the present invention.
  • FIG. 6 is a perspective view of the assembled LED beam lamp in the third embodiment in accordance with the present invention.
  • a LED beam lamp in first embodiment in accordance with the present invention comprises a mainbody 1 and a support frame 2 attached to the mainbody 1.
  • the mainbody 1 is configured to a lookalike round platform.
  • the mainbody 1 is made of aluminium alloy material.
  • the mainbody 1 has a bigger top opening, a smaller bottom opening and a round sidewall.
  • a plurality of grooves 12 is defined in the round sidewall in parallel.
  • a board 3 is accommodated in the mainbody 1 for mounting LED.
  • a light transmitting device 4 is mounted onto the bigger top opening of the mainbody 1.
  • the light transmitting device 4 comprises a reflecting cup 8 and a glass piece 9 covering onto the reflecting cup 8.
  • a power supply unit 51 being made of planar transformer is accommodated into the support frame 2.
  • the power supply unit 51 applies constant current scheme to supply working current for the LED beam lamp.
  • three LEDs are mounted into the board 3.
  • the support frame 2 has a pin cap 61 at one end thereof so as to mount the LED beam lamp into a corresponding
  • a LED beam lamp in second embodiment in accordance with the present invention comprises a mainbody 1 and a support frame 2 attached to the mainbody 1.
  • the mainbody 1 is configured to a lookalike round platform.
  • the mainbody 1 is made of aluminium alloy material.
  • the mainbody 1 has a bigger top opening, a smaller bottom opening and a round sidewall.
  • a plurality of grooves 12 is defined in the round sidewall in parallel.
  • a board 3 is accommodated in the mainbody 1 for mounting LED.
  • a light transmitting device 4 is mounted onto the bigger top opening of the mainbody 1.
  • the light transmitting device 4 comprises a reflecting cup 8 and a glass piece 9 covering onto the reflecting cup 8.
  • a power supply unit 52 being made of planar transformer is accommodated into the support frame 2.
  • the power supply unit 52 applies constant current scheme to supply working current for the LED beam lamp.
  • three LEDs are mounted into the board 3.
  • the support frame 2 has a bay onet cap 62 at one end thereof so as to mount the LED beam lamp into a corresponding lampholder.
  • a LED beam lamp in third embodiment in accordance with the present invention comprises a mainbody 1 and a support frame 2 attached to the mainbody 1.
  • the mainbody 1 is configured to a lookalike round platform and made of aluminium alloy material.
  • the mainbody 1 has a bigger top opening, a smaller bottom opening and a round sidewall.
  • a plurality of grooves 12 is defined in the round sidewall in parallel.
  • a board 3 is accommodated in the mainbody 1 for mounting LED.
  • a light transmitting device 4 is mounted onto the bigger top opening of the mainbody 1.
  • the light transmitting device 4 is a spherical lens 10.
  • the surface of the spherical lens 10 is covered with PMMA (Polymethyl Methacrylate) material which has more than 93 percent light transmission rate so it has excellent light efficiency.
  • a power supply unit 53 being made of planar transformer is accommodated into the support frame 2.
  • the power supply unit 53 applies constant current scheme to supply working current for the LED beam lamp.
  • three LEDs are mounted into the board 3.
  • the support frame 2 has a screw cap 7 at one end thereof so as to mount the LED beam lamp into a corresponding lampholder.
  • LEDs in various colors can be mounted in the LED beam lamp to obtain various vision effect.

Abstract

The invention discloses a LED beam lamp includes a mainbody (1) and a support frame (2). The mainbody (1) includes a board (3) for mounting at least one LED and a light transmitting device (4). The mainbody (1) is configured to a lookalike round platform and has a bigger top opening, a smaller bottom opening and a round sidewall, a plurality of grooves (12) is defined in the round sidewall. A power supply unit (51, 52, 53) being made of planar transformer is accommodated into the support frame (2) and applies constant current scheme to supply current for the LED beam lamp.

Description

    FIELD OF THE INVENTION
  • The present invention relates to semiconducting lighting devices. More particularly, the present invention relates to a LED beam lamp.
    • BACKGROUND OF THE INVENTION
  • Nowadays LEDs (Light-emitting Diode) is used as light source in beam lamps, which have high lumen efficiency and benefit energy conservation and environmental protection. Therefore, LED beam lamps are widely used in our lives. However the conventional LED lamps have some disadvantages.
  • First, the LED keeps generating heat during lighting but it is difficult to dissipate the heat.
  • Second, if the heat can not be dissipated timely the LED and the driving circuit in the lamp are easily burned down and bring potential safety troubles. The last but not the least, the range of the lighting angle is often small and difficult to gain appreciable lighting performance.
    • SUMMARY OF THE INVENTION
  • The purpose of the present invention is to provide a LED beam lamp with high heat dissipating performance and steady lighting performance.
  • One embodiment of the present invention provides a LED beam lamp, which includes a mainbody and a support frame attached to the mainbody. The mainbody includes a board for mounting at least one LED and a light transmitting device. The mainbody is configured to a lookalike round platform and has a bigger top opening, a smaller bottom opening and a round sidewall, a plurality of grooves is defined in the round sidewall. A power supply unit being made of planar transformer is accommodated into the support frame and applies constant current scheme to supply current for the LED beam lamp.
  • The LED beam lamp in accordance with the present invention has unique heat dissipating structure, which enhances heat dissipating speed and provides a solution of heat dissipating difficulty for products in present market. Furthermore, the LED beam lamp applies inner power supply unit and constant current scheme so that the lighting becomes steadier and higher qualified, meanwhile the working life of the LED beam lamp is extended.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an exploded perspective view of a LED beam lamp in first embodiment in accordance with the present invention;
  • FIG. 2 is a perspective view of the assembled LED beam lamp in the first embodiment in accordance with the present invention;
  • FIG. 3 is an exploded perspective view of a LED beam lamp in second embodiment in accordance with the present invention;
  • FIG. 4 is a perspective view of the assembled LED beam lamp in the second embodiment in accordance with the present invention;
  • FIG. 5 is an exploded perspective view of a LED beam lamp in third embodiment in accordance with the present invention; and
  • FIG. 6 is a perspective view of the assembled LED beam lamp in the third embodiment in accordance with the present invention.
    • DETAILED DESCRIPTION OF THE INVENTION
  • Referring to Fig.1 and Fig.2, a LED beam lamp in first embodiment in accordance with the present invention comprises a mainbody 1 and a support frame 2 attached to the mainbody 1. The mainbody 1 is configured to a lookalike round platform. The mainbody 1 is made of aluminium alloy material. The mainbody 1 has a bigger top opening, a smaller bottom opening and a round sidewall. A plurality of grooves 12 is defined in the round sidewall in parallel. A board 3 is accommodated in the mainbody 1 for mounting LED. A light transmitting device 4 is mounted onto the bigger top opening of the mainbody 1. The light transmitting device 4 comprises a reflecting cup 8 and a glass piece 9 covering onto the reflecting cup 8. A power supply unit 51 being made of planar transformer is accommodated into the support frame 2. The power supply unit 51 applies constant current scheme to supply working current for the LED beam lamp. In this embodiment, three LEDs are mounted into the board 3. The support frame 2 has a pin cap 61 at one end thereof so as to mount the LED beam lamp into a corresponding lampholder.
  • Referring to Fig.3 and Fig.4, a LED beam lamp in second embodiment in accordance with the present invention comprises a mainbody 1 and a support frame 2 attached to the mainbody 1. The mainbody 1 is configured to a lookalike round platform. The mainbody 1 is made of aluminium alloy material. The mainbody 1 has a bigger top opening, a smaller bottom opening and a round sidewall. A plurality of grooves 12 is defined in the round sidewall in parallel. A board 3 is accommodated in the mainbody 1 for mounting LED. A light transmitting device 4 is mounted onto the bigger top opening of the mainbody 1. The light transmitting device 4 comprises a reflecting cup 8 and a glass piece 9 covering onto the reflecting cup 8. A power supply unit 52 being made of planar transformer is accommodated into the support frame 2. The power supply unit 52 applies constant current scheme to supply working current for the LED beam lamp. In this embodiment, three LEDs are mounted into the board 3. The support frame 2 has a bay onet cap 62 at one end thereof so as to mount the LED beam lamp into a corresponding lampholder.
  • Referring to Fig. 5 and Fig. 6, a LED beam lamp in third embodiment in accordance with the present invention comprises a mainbody 1 and a support frame 2 attached to the mainbody 1. The mainbody 1 is configured to a lookalike round platform and made of aluminium alloy material. The mainbody 1 has a bigger top opening, a smaller bottom opening and a round sidewall. A plurality of grooves 12 is defined in the round sidewall in parallel. A board 3 is accommodated in the mainbody 1 for mounting LED. A light transmitting device 4 is mounted onto the bigger top opening of the mainbody 1. The light transmitting device 4 is a spherical lens 10. The surface of the spherical lens 10 is covered with PMMA (Polymethyl Methacrylate) material which has more than 93 percent light transmission rate so it has excellent light efficiency. A power supply unit 53 being made of planar transformer is accommodated into the support frame 2. The power supply unit 53 applies constant current scheme to supply working current for the LED beam lamp. In this embodiment, three LEDs are mounted into the board 3. The support frame 2 has a screw cap 7 at one end thereof so as to mount the LED beam lamp into a corresponding lampholder.
  • In above-mentioned embodiments, LEDs in various colors can be mounted in the LED beam lamp to obtain various vision effect.

Claims (10)

  1. A LED beam lamp, comprising:
    a mainbody (1) comprising a board (3) for mounting at least one LED and a light transmitting device (4), and
    a support frame (2) attached to the mainbody (1),
    the LED beam lamp being characterized in that
    A power supply unit (51, 52, 53) being made of planar transformer is accommodated into the support frame (2) and applies constant current scheme to supply current for the LED beam lamp.
  2. The LED beam lamp as claimed in claim 1, wherein the mainbody (1) is configured to a lookalike round platform and has a bigger top opening, a smaller bottom opening and a round sidewall, and a plurality of grooves (12) is defined in the round sidewall.
  3. The LED beam lamp as claimed in claim 1, wherein the mainbody (1) is made of aluminium alloy material.
  4. The LED beam lamp as claimed in claim 1, wherein the support frame (2) has a pin cap (61) at one end thereof for mounting the LED beam lamp into a corresponding lampholder.
  5. The LED beam lamp as claimed in claim 1, wherein the support frame (2) has a bay onet cap (62) at one end thereof to mount the LED beam lamp into a corresponding lampholder.
  6. The LED beam lamp as claimed in claim 1, wherein the support frame (2) has a screw cap (7) at one end thereof to mount the LED beam lamp into a corresponding lampholder.
  7. The LED beam lamp as claimed in claim 1, wherein the light transmitting device (4) comprises a reflecting cup (8) and a glass piece (9) covering onto the reflecting cup (8).
  8. The LED beam lamp as claimed in claim 1, wherein the light transmitting device (4) may be a spherical lens 10.
  9. A LED beam lamp, comprising:
    a mainbody (1) comprising a board (3) for mounting at least one LED and a light transmitting device (4), and
    a support frame (2) attached to the mainbody (1),
    the LED beam lamp being characterized in that
    the mainbody (1) is configured to a lookalike round platform and has a bigger top opening, a smaller bottom opening and a sidewall, and a plurality of grooves (12) is defined in the round sidewall.
  10. The LED beam lamp as claimed in claim 1, wherein a power supply unit (51, 52, 53) being made of planar transformer is accommodated into the support frame (2) and applies constant current scheme to supply current for the LED beam lamp.
EP08001210A 2008-01-23 2008-01-23 LED lamp Ceased EP2083210A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08001210A EP2083210A1 (en) 2008-01-23 2008-01-23 LED lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08001210A EP2083210A1 (en) 2008-01-23 2008-01-23 LED lamp

Publications (1)

Publication Number Publication Date
EP2083210A1 true EP2083210A1 (en) 2009-07-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08001210A Ceased EP2083210A1 (en) 2008-01-23 2008-01-23 LED lamp

Country Status (1)

Country Link
EP (1) EP2083210A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101793361A (en) * 2010-03-22 2010-08-04 罗本杰 LED light source with Fresnel lens
WO2011064180A1 (en) * 2009-11-25 2011-06-03 Tridonic Jennersdorf Gmbh Led lamp having a pin socket for halogen lamps ('bi-pin')
EP2330337A1 (en) * 2009-12-04 2011-06-08 Civilight Qidong Lighting Technology Co., Ltd. LED spotlights

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040066142A1 (en) * 2002-10-03 2004-04-08 Gelcore, Llc LED-based modular lamp
US20060274529A1 (en) * 2005-06-01 2006-12-07 Cao Group, Inc. LED light bulb
DE202007003679U1 (en) 2007-03-09 2007-05-16 Hong Kuan Technology Co., Ltd., Sinjhuang City Light emitting diode lamp for presentation of e.g. sales objects, in e.g. showcase, has cooling module, which is formed of number of cooling fins, and protective covering, which encloses cooling module
WO2007146566A2 (en) * 2006-06-08 2007-12-21 Lighting Science Group Corporation Apparatus with a packed circuitry within a lightbulb

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040066142A1 (en) * 2002-10-03 2004-04-08 Gelcore, Llc LED-based modular lamp
US20060274529A1 (en) * 2005-06-01 2006-12-07 Cao Group, Inc. LED light bulb
WO2007146566A2 (en) * 2006-06-08 2007-12-21 Lighting Science Group Corporation Apparatus with a packed circuitry within a lightbulb
DE202007003679U1 (en) 2007-03-09 2007-05-16 Hong Kuan Technology Co., Ltd., Sinjhuang City Light emitting diode lamp for presentation of e.g. sales objects, in e.g. showcase, has cooling module, which is formed of number of cooling fins, and protective covering, which encloses cooling module

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011064180A1 (en) * 2009-11-25 2011-06-03 Tridonic Jennersdorf Gmbh Led lamp having a pin socket for halogen lamps ('bi-pin')
EP2330337A1 (en) * 2009-12-04 2011-06-08 Civilight Qidong Lighting Technology Co., Ltd. LED spotlights
CN101793361A (en) * 2010-03-22 2010-08-04 罗本杰 LED light source with Fresnel lens
CN101793361B (en) * 2010-03-22 2011-08-17 罗本杰(北京)光电研究所有限公司 LED light source with Fresnel lens

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