GB2449409A - Fluorescent light conversion assembly - Google Patents

Fluorescent light conversion assembly Download PDF

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Publication number
GB2449409A
GB2449409A GB0607466A GB0607466A GB2449409A GB 2449409 A GB2449409 A GB 2449409A GB 0607466 A GB0607466 A GB 0607466A GB 0607466 A GB0607466 A GB 0607466A GB 2449409 A GB2449409 A GB 2449409A
Authority
GB
United Kingdom
Prior art keywords
high frequency
existing
fitting
tube
light fitting
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.)
Withdrawn
Application number
GB0607466A
Other versions
GB0607466D0 (en
Inventor
Ronald Deakin
Clive Wing
Keyuan Lights Kunshan Ltd
Liang Wen
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.)
KEYUAN LIGHTS
Original Assignee
KEYUAN LIGHTS
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 KEYUAN LIGHTS filed Critical KEYUAN LIGHTS
Priority to GB0607466A priority Critical patent/GB2449409A/en
Publication of GB0607466D0 publication Critical patent/GB0607466D0/en
Publication of GB2449409A publication Critical patent/GB2449409A/en
Withdrawn legal-status Critical Current

Links

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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
    • F21V19/008—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/031—Lighting devices intended for fixed installation of surface-mounted type the device consisting essentially only of a light source holder with an exposed light source, e.g. a fluorescent tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/94—Holders formed as intermediate parts for linking a counter-part to a coupling part
    • H01R33/942—Holders formed as intermediate parts for linking a counter-part to a coupling part for tubular fluorescent lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/945—Holders with built-in electrical component
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

A one piece adapter assembly allows a small fluorescent tube such as a T5 type to be used in a socket intended for a larger type such as a T8 or T12. The assembly has pins 1 which plug into the socket, and has sockets to hold the smaller tube 3. The assembly also includes an electronic ballast to operate the bulb.

Description

This invention relates to fluorescent light fittings. Standard
fluorescent light fittings used in the Europe and throughout the world are known as T8 and T12. They use T8 and T12 type fluorescent tubes. The 112 tube has 1.5"! 35mm diameter and the T8 a 1"/25mm diameter.
The length of the fluorescent tube varies depending on power output.
More efficient fluorescent tubes are now available using new technology known as T5.
The T5 fluorescent tube has a smaller ( 5/8" / 16mm) diameter than the T8 and 112 tubes.
The 15 range of fluorescent tubes are also shorter in length than the corresponding power T8 and T12 fluorescent tubes. The T5 is therefore smaller in diameter and shorter in length than corresponding power output T8 and 112 tubes.
The T5 is a highly efficient fluorescent tube with a lifespan of over 20,000 hours, compared to an approximate 8,000 hours life of a standard T8 or T12 fluorescent tube. The T5 tubes use less electrical power than a corresponding power output T8 or T12 tube with no considerable different in light output or light quality. T5 tubes contains approximate 38% less glass and phosphors with only a little mercury, when compared to the old 18 and 112 tubes and is considered to be more environmental friendly than 18 and T12 Tubes, 18 and 112 fluorescent tube light fittings use electromagnet ballasts or transformers. These are electrical transformers, also known as Control Gear. These components are fitted inside every fluorescent light fitting and without this component no fluorescent tube would work.
These 18 and T12 magnetic-ballasts operate at a frequency of 60 to 100 Hz. 15 tubes require a much higher frequency (35,000 Hz) electronic ballast to operate.
T5 fluorescent tubes are now produced by all major light manufacturers. As a result of producing similar luminance with lower power consumption and thereby reducing Co2 emissions T5 tubes are gradually replacing T8 and TI 2 lighting systems.
In order to use 15 tubes new 15 High Frequency Ballast light fittings have to be used, replacing T8 and 112 lighting fittings, which have to be completely removed. The replacement of 18 and 112 light fittings by T5 light systems is an expensive installation procedure.
This invention seeks to overcome the problem of replacing the 18 and TI 2 light fittings and its 60 Hz to 100 Hz inefficient control gear and allowing energy efficient and more environmentally friendly, but smaller diameter and shorter length T5 tubes with a high frequency ballast to be used in existing 18 and TI 2 light fittings.
Fig I shows the invention device is a complete, one piece assembly, T5 fluorescent tube light fitting complete with its own internal high frequency ballast. It is designed to enable the complete assembly to be installed into an existing 18 or T12 light fitting and allowing a 15 fluorescent tube to be fitted into the device for operational purposes.
The ends of the device are exactly the same shape, diameter, design as a standard T8 or T12 tube. The device has 2 metal pins which protrude out of each end of the device. These are the same design, shape and size of the 2 pins that protrude, and can be found on the end of every T8 or Tl2 fluorescent linear tube.
Fig 3 shows two device pins (1) are fixed and located on to the device in the same position as found on a T8 or 112 tubes. The complete device therefore has the same diameter at each end as the T8 or 112 tube, the same overall length of the T8 or T12 tube and the same 2 pin connectors, which it replaces.
When the existing T8 or 112 tube is removed the complete device is installed in the existing T8 or T12 light fitting, in the same way as a 18 or T12 fluorescent tube would be normally replaced. The complete device therefore mimics' the same shape and approximate dimensions of the 18 or 112 tube to be replaced.
When the device has been installed in the 18 or T12 light fitting the device, which is in itself a complete 15 tube light fitting with all the fixings of a standard 15 fluorescent tube fitting, is ready to accept a 15 fluorescent tube.
Fig 2 shows a 15 fluorescent tube (3) can then be installed in the device, which can now be installed and part of the existing 18 or 112 light fitting. When the T5 tube is installed and fixed into the device the 15 tube is connected through its 2 end pin connectors to high frequency ballast which is fitted inside the device.
The device has internally fitted 35,000 Hz high frequency electronic ballast, or more appropriately called Electronic Control Gear (ECG) that is designed to work specifically with T5 fluorescent tubes.
The existing 100 Hz to 60 Hz ballast fitted inside the 18 or 112 light fitting is by-passed by removing an electrical starter' component in the 18 or T12 fitting. This allows the high frequency ballast fitted inside the device to ovenide the 60 Hz to 100 Hz ballast, which is made redundant.
The internal high frequency ballast in the device is connected through a metal conductivity assembly connecting the internally housed high frequency ballast to the power supply of the 18 and 112 light fittings, thus allowing electrical power to the high frequency ballast and though to the 15 tube. it is this power supply from the internal high frequency ballast which ignites and powers the T5 tube.
The device is a complete 15 fluorescent tube light fitting, designed to accept T5 tubes and fitted with internal high frequency ballast required to ignite and operate T5 tubes. It is designed to enable it to replace 18 or 112 tubes that are removed from an existing 18 or T12 light fitting and installation of the device into the 18 or 112 fitting is a similar procedure as that of replacing a used T8 or 112 tube with a new one.
The one piece assembly device therefore allows the smaller diameter and shorter T5 tubes to be used in existing T8 and TI 2 ballasts and thus providing an immediate and long term solution to the complete removal of existing 18 or TI 2 fluorescent light fittings when more efficient, energy saving T5 lighting is required.
A preferred embodiment of the invention will now be described with reference to the accompanying drawing in which: FIGURE 1: Shows a side view of the complete assembly device without T5 tube fitted FIGURE 2: Shows a side view of the complete assembly device with 15 tube fitted FIGURE 3: Shows a perspective view of one end of the invention from the front and above. Lf

Claims (4)

  1. CLAIM
    I) A one piece assembly fluorescent tube light fitting device complete with its own internal high frequency ballast designed to enable the complete assembly to be installed into an existing T8 or Ti 2 light fitting and thus allowing a T5 fluorescent tube to be installed into the existing 18 or TI 2 fitting for operational purposes.
  2. 2) A one piece assembly device which houses an internally fitted high frequency ballast and when installed in a T8 or T12 light fitting isolates and makes redundant the existing 60hz to 100hz ballast required to operate the T8 or 112 and supplies the correct high frequency power to enable the operation of the T5 tube.
  3. 3) A one piece assembly device which enables a T5 fluorescent tube, which is shorter in length and smaller in diameter than 18 or 112 tubes, to be fixed in an existing 18 or 112 light fitting for operational purposes, thus eliminating the need to remove and dispose of the existing T8 or 112 light fitting and the need to install a completely new T5 light fitting.
  4. 4) A one piece assembly device which as part of its internal high frequency ballast control gear includes a metal conductivity assembly connecting the internally housed high frequency ballast to existing, installed T8 or 112 fitting, thus allowing electrical power from the 18 or T12 fluorescent fitting to the high frequency ballast which in turn ignites and powers the 15 fluorescent tube.
GB0607466A 2006-04-12 2006-04-12 Fluorescent light conversion assembly Withdrawn GB2449409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0607466A GB2449409A (en) 2006-04-12 2006-04-12 Fluorescent light conversion assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0607466A GB2449409A (en) 2006-04-12 2006-04-12 Fluorescent light conversion assembly

Publications (2)

Publication Number Publication Date
GB0607466D0 GB0607466D0 (en) 2006-05-24
GB2449409A true GB2449409A (en) 2008-11-26

Family

ID=36571794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0607466A Withdrawn GB2449409A (en) 2006-04-12 2006-04-12 Fluorescent light conversion assembly

Country Status (1)

Country Link
GB (1) GB2449409A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010034148A1 (en) * 2000-03-27 2001-10-25 Walter Holzer Light fittings for retrofitting large-diameter inductive fluorescent lamps to smaller-diameter electronic T5-lamps
DE10239758A1 (en) * 2002-08-29 2004-03-11 Hesse, Christian Fluorescent safety lamp for saving energy, has safety sheath acting as ultraviolet filter catching broken pieces of glass if lamp breaks
US20040179357A1 (en) * 2001-09-03 2004-09-16 Heiner Kappe Tubular lamps for fluorescent lighting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010034148A1 (en) * 2000-03-27 2001-10-25 Walter Holzer Light fittings for retrofitting large-diameter inductive fluorescent lamps to smaller-diameter electronic T5-lamps
US20040179357A1 (en) * 2001-09-03 2004-09-16 Heiner Kappe Tubular lamps for fluorescent lighting
DE10239758A1 (en) * 2002-08-29 2004-03-11 Hesse, Christian Fluorescent safety lamp for saving energy, has safety sheath acting as ultraviolet filter catching broken pieces of glass if lamp breaks

Also Published As

Publication number Publication date
GB0607466D0 (en) 2006-05-24

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Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)