GB2521423B - An LED tube lamp with improved heat sink - Google Patents

An LED tube lamp with improved heat sink Download PDF

Info

Publication number
GB2521423B
GB2521423B GB1322520.6A GB201322520A GB2521423B GB 2521423 B GB2521423 B GB 2521423B GB 201322520 A GB201322520 A GB 201322520A GB 2521423 B GB2521423 B GB 2521423B
Authority
GB
United Kingdom
Prior art keywords
heat sink
improved heat
tube lamp
led tube
led
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.)
Expired - Fee Related
Application number
GB1322520.6A
Other versions
GB201322520D0 (en
GB2521423A (en
Inventor
David Charity Adrian
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.)
Novar ED&S Ltd
Original Assignee
Novar ED&S 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 Novar ED&S Ltd filed Critical Novar ED&S Ltd
Priority to GB1322520.6A priority Critical patent/GB2521423B/en
Publication of GB201322520D0 publication Critical patent/GB201322520D0/en
Publication of GB2521423A publication Critical patent/GB2521423A/en
Application granted granted Critical
Publication of GB2521423B publication Critical patent/GB2521423B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F21K9/90—Methods of manufacture
    • 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
    • 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
    • F21V17/104—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 using feather joints, e.g. tongues and grooves, with or without friction
    • 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
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB1322520.6A 2013-12-19 2013-12-19 An LED tube lamp with improved heat sink Expired - Fee Related GB2521423B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1322520.6A GB2521423B (en) 2013-12-19 2013-12-19 An LED tube lamp with improved heat sink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1322520.6A GB2521423B (en) 2013-12-19 2013-12-19 An LED tube lamp with improved heat sink

Publications (3)

Publication Number Publication Date
GB201322520D0 GB201322520D0 (en) 2014-02-05
GB2521423A GB2521423A (en) 2015-06-24
GB2521423B true GB2521423B (en) 2020-04-22

Family

ID=50071101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1322520.6A Expired - Fee Related GB2521423B (en) 2013-12-19 2013-12-19 An LED tube lamp with improved heat sink

Country Status (1)

Country Link
GB (1) GB2521423B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090046458A1 (en) * 2007-08-13 2009-02-19 Young Seb Lee Cooling structure for street lamp using light emitting diode
US20100020553A1 (en) * 2008-07-24 2010-01-28 Advanced Optoelectronic Technology Inc. Passive heat sink and light emitting diode lighting device using the same
US20110110087A1 (en) * 2008-06-05 2011-05-12 Hochstein Peter A Light engine with enhanced heat transfer using independent elongated strips
US20120201022A1 (en) * 2011-02-07 2012-08-09 Cree, Inc. Solid state lighting device with elongated heatsink
US8246219B2 (en) * 2008-11-04 2012-08-21 Advanced Optoelectronic Technology, Inc. Light emitting diode light module and optical engine thereof
US20130050999A1 (en) * 2011-08-24 2013-02-28 Ilumisys, Inc. Circuit board mount for led light
US20130308312A1 (en) * 2009-06-03 2013-11-21 Michael F. Pickholz Lamp assembly and method for making

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090046458A1 (en) * 2007-08-13 2009-02-19 Young Seb Lee Cooling structure for street lamp using light emitting diode
US20110110087A1 (en) * 2008-06-05 2011-05-12 Hochstein Peter A Light engine with enhanced heat transfer using independent elongated strips
US20100020553A1 (en) * 2008-07-24 2010-01-28 Advanced Optoelectronic Technology Inc. Passive heat sink and light emitting diode lighting device using the same
US8246219B2 (en) * 2008-11-04 2012-08-21 Advanced Optoelectronic Technology, Inc. Light emitting diode light module and optical engine thereof
US20130308312A1 (en) * 2009-06-03 2013-11-21 Michael F. Pickholz Lamp assembly and method for making
US20120201022A1 (en) * 2011-02-07 2012-08-09 Cree, Inc. Solid state lighting device with elongated heatsink
US20130050999A1 (en) * 2011-08-24 2013-02-28 Ilumisys, Inc. Circuit board mount for led light

Also Published As

Publication number Publication date
GB201322520D0 (en) 2014-02-05
GB2521423A (en) 2015-06-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20211219