WO1990016137A1 - Infra-red radiation source - Google Patents

Infra-red radiation source Download PDF

Info

Publication number
WO1990016137A1
WO1990016137A1 PCT/GB1990/000939 GB9000939W WO9016137A1 WO 1990016137 A1 WO1990016137 A1 WO 1990016137A1 GB 9000939 W GB9000939 W GB 9000939W WO 9016137 A1 WO9016137 A1 WO 9016137A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
source
infra
red radiation
radiation source
Prior art date
Application number
PCT/GB1990/000939
Other languages
French (fr)
Inventor
Robert W. Blundy
William Jones
Original Assignee
Electricity Association Services Limited
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 Electricity Association Services Limited filed Critical Electricity Association Services Limited
Publication of WO1990016137A1 publication Critical patent/WO1990016137A1/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0033—Heating devices using lamps
    • H05B3/0071—Heating devices using lamps for domestic applications
    • H05B3/008—Heating devices using lamps for domestic applications for heating of inner spaces

Definitions

  • Infra-red radiation sources are used as heat sources in commercial process ovens, domestic cooker hot plates and ovens, and radiant energy electrical heaters, and there, is a requirement for such sources which have a fast response time when energised, and which can operate at relatively high temperatures, for example up to 1200 C.
  • an infra ⁇ red radiation source comprising a tube of infra-red radiation transparent material containing an electrical conductor formed of carbon fibres, and connection means for connecting the conductor across an electrical power supply.
  • the source comprises a tube 1 of infra-red radiation transparent material, for example a ceramic material such as quartz, which contains an electrical conductor 2 in the form of a flat strip formed of carbon fibres. At each end the strip 2 is terminated by a metal member 3 which is electrically connected by a coiled metal wire conductor 4 to connection means comprising a terminal member 5 which extends outside the tube 1. When the two terminal members 5 are connected across a suitable electrical power supply the source emits infra-red radiation.
  • a tube 1 of infra-red radiation transparent material for example a ceramic material such as quartz
  • an electrical conductor 2 in the form of a flat strip formed of carbon fibres.
  • connection means comprising a terminal member 5 which extends outside the tube 1.
  • the tube 1 is sealed and either is evacuated or contains a gas such as argon at sub-atmospheric pressure.
  • an expansion chamber can be connected to the tube 1, the tube 1 and expansion chamber then together forming a sealed environment for the conductor 2 which is thus kept within its own reaction gases and inhibiting any further reaction.
  • the carbon fibre electrical conductor 2 is in the form of a flat strip, it will be appreciated that it can otherwise be of other cross-section, for example round or shaped. Further, it will also be appreciated that the metal wire conductor 4 need not be coiled.

Landscapes

  • Resistance Heating (AREA)

Abstract

There is provided an infra-red radiation source which comprises a tube of infra-red radiation transparent material containing an electrical conductor formed of carbon fibres, which is connected across an electrical power supply. The tube is sealed and may either be evacuated or filled with a gas such as argon at sub-atmospheric pressure. This provides a radiation source with a fast response time, operable at temperatures up to 1200°C for example.

Description

INFRA-RED RADIATION SOURCE
This invention relates to an infra-red radiation source. Infra-red radiation sources are used as heat sources in commercial process ovens, domestic cooker hot plates and ovens, and radiant energy electrical heaters, and there, is a requirement for such sources which have a fast response time when energised, and which can operate at relatively high temperatures, for example up to 1200 C.
According to this invention there is provided an infra¬ red radiation source comprising a tube of infra-red radiation transparent material containing an electrical conductor formed of carbon fibres, and connection means for connecting the conductor across an electrical power supply.
This invention will now be described by way of example with reference to the drawing which is a diagrammatic perspective view of an infra-red radiation source according to the invention.
Referring to the drawing, the source comprises a tube 1 of infra-red radiation transparent material, for example a ceramic material such as quartz, which contains an electrical conductor 2 in the form of a flat strip formed of carbon fibres. At each end the strip 2 is terminated by a metal member 3 which is electrically connected by a coiled metal wire conductor 4 to connection means comprising a terminal member 5 which extends outside the tube 1. When the two terminal members 5 are connected across a suitable electrical power supply the source emits infra-red radiation.
The tube 1 is sealed and either is evacuated or contains a gas such as argon at sub-atmospheric pressure.
Otherwise an expansion chamber can be connected to the tube 1, the tube 1 and expansion chamber then together forming a sealed environment for the conductor 2 which is thus kept within its own reaction gases and inhibiting any further reaction.
Although in the source described above the carbon fibre electrical conductor 2 is in the form of a flat strip, it will be appreciated that it can otherwise be of other cross-section, for example round or shaped. Further, it will also be appreciated that the metal wire conductor 4 need not be coiled.

Claims

CWflS
1. An infra-red radiation source comprising a tube of infra-red radiation transparent material containing an electrical conductor formed of carbon fibres, and connection means for connecting the conductor across an electrical power supply.
2. A source as claimed in Claim 1, in which the tube is sealed and evacuated.
3. A source as claimed in Claim 1, in which the tube is sealed and contains a gas at sub-atmospheric pressure.
4. A source as claimed in Claim 3, in which the gas is argon.
5. A source as claimed in Claim 1, in which the tube has an expansion chamber connected thereto, the tube and chamber together forming a sealed environment for the conductor.
6. A source as claimed in any preceding claim, in which the conductor is in the form of a flat strip.
7. A source as claimed in any preceding claim, in which the tube is of ceramic material.
8. A source as claimed in Claim 7, in which the ceramic material is quartz.
PCT/GB1990/000939 1989-06-16 1990-06-18 Infra-red radiation source WO1990016137A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8913914A GB2233150A (en) 1989-06-16 1989-06-16 Infra-red radiation source
GB8913914.1 1989-06-16

Publications (1)

Publication Number Publication Date
WO1990016137A1 true WO1990016137A1 (en) 1990-12-27

Family

ID=10658581

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/000939 WO1990016137A1 (en) 1989-06-16 1990-06-18 Infra-red radiation source

Country Status (3)

Country Link
AU (1) AU5829090A (en)
GB (1) GB2233150A (en)
WO (1) WO1990016137A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993006920A1 (en) * 1991-10-11 1993-04-15 Samuel Manu-Tech Inc. Improved radiation emitting heating elements and structure
WO1994028693A1 (en) * 1993-05-21 1994-12-08 Ea Technology Limited Improvements relating to infra-red radiation sources
WO1999022551A1 (en) * 1997-10-27 1999-05-06 Heraeus Noblelight Gmbh Infra red spheroidal radiation emitter
FR2780597A1 (en) * 1998-06-29 1999-12-31 Messier Bugatti Infrared radiation source for industrial applications
EP0989590A1 (en) * 1998-09-24 2000-03-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Incandescent electric lamp
WO2001015207A1 (en) * 1999-08-22 2001-03-01 Ip2H Ag Light source and method for producing a light source
US6591062B2 (en) * 2000-06-21 2003-07-08 Heraeus Noblelight Gmbh Infrared radiator with carbon fiber heating element centered by spacers
SG121806A1 (en) * 1999-11-30 2006-05-26 Matsushita Electric Ind Co Ltd Infrared ray lamp, heating apparatus and method ofproducing the infrared ray lamp

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4419285C2 (en) * 1994-06-01 1999-01-28 Heraeus Noblelight Gmbh Infrared heater
DE4438870B4 (en) * 1994-11-03 2004-11-11 Heraeus Noblelight Gmbh Infrared emitter with an elongated resistance body as the radiation source
DE19545296C2 (en) * 1995-12-05 1998-08-27 Heraeus Noblelight Gmbh Infrared heater
TW452826B (en) * 1997-07-31 2001-09-01 Toshiba Ceramics Co Carbon heater
DE19839457A1 (en) * 1998-08-29 2000-03-09 Heraeus Noblelight Gmbh Spiral heating element, method and device for producing the same and infrared radiator produced using a spiral heating element
DE19843852A1 (en) * 1998-09-24 2000-03-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electrical incandescent lamp has light body(ies) in lamp vessel with flat, esp. strip-shaped, light body element(s) radiating in infrared and visible regions, infrared reflective filter(s)
DE19912544B4 (en) * 1999-03-19 2007-01-18 Heraeus Noblelight Gmbh Infrared radiator and method for heating a material to be treated
DE19917270C2 (en) * 1999-04-16 2001-04-26 Heraeus Noblelight Gmbh Radiation arrangement, in particular infrared radiators
GB2377609A (en) * 2001-06-01 2003-01-15 Resintech Ltd Carbon fibre IR source for heat shrinking fibre optic fusion splice protector
DE10137928A1 (en) * 2001-08-07 2003-03-06 Heraeus Noblelight Gmbh Infrared heater with a twin cladding tube

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB966177A (en) * 1962-09-19 1964-08-06 Gen Electric Radiant energy device
FR1540750A (en) * 1967-10-12 1968-09-27 Inst Schienenfahrzeuge high frequency heating element
SU905918A1 (en) * 1979-12-13 1982-02-15 Полтавский Кооперативный Институт Incandescent lamp
US4543472A (en) * 1982-11-03 1985-09-24 Ushio Denki Kabushiki Kaisha Plane light source unit and radiant heating furnace including same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB966177A (en) * 1962-09-19 1964-08-06 Gen Electric Radiant energy device
FR1540750A (en) * 1967-10-12 1968-09-27 Inst Schienenfahrzeuge high frequency heating element
SU905918A1 (en) * 1979-12-13 1982-02-15 Полтавский Кооперативный Институт Incandescent lamp
US4543472A (en) * 1982-11-03 1985-09-24 Ushio Denki Kabushiki Kaisha Plane light source unit and radiant heating furnace including same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED ACCESSION NUMBER 82-08945J,WEEK J50, 02 FEB.83 DERWENT PUBLICATIONS LTD., LONDON GB. & SU-A-905918 (SEVERIN ET AL.) 15 FEB. 82 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993006920A1 (en) * 1991-10-11 1993-04-15 Samuel Manu-Tech Inc. Improved radiation emitting heating elements and structure
WO1994028693A1 (en) * 1993-05-21 1994-12-08 Ea Technology Limited Improvements relating to infra-red radiation sources
EP0881858A2 (en) * 1993-05-21 1998-12-02 Ea Technology Limited Improvements relating to infra-red radiation sources
EP0881858A3 (en) * 1993-05-21 1999-12-08 Ea Technology Limited Improvements relating to infra-red radiation sources
US6057532A (en) * 1993-05-21 2000-05-02 Ea Tech Ltd Infra-red radiation sources
WO1999022551A1 (en) * 1997-10-27 1999-05-06 Heraeus Noblelight Gmbh Infra red spheroidal radiation emitter
WO2000001201A1 (en) * 1998-06-29 2000-01-06 Messier-Bugatti Infrared radiation source
FR2780597A1 (en) * 1998-06-29 1999-12-31 Messier Bugatti Infrared radiation source for industrial applications
EP0989590A1 (en) * 1998-09-24 2000-03-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Incandescent electric lamp
WO2001015207A1 (en) * 1999-08-22 2001-03-01 Ip2H Ag Light source and method for producing a light source
US6903508B1 (en) 1999-08-22 2005-06-07 Ip2H Ag Light source and method for producing a light source
SG121806A1 (en) * 1999-11-30 2006-05-26 Matsushita Electric Ind Co Ltd Infrared ray lamp, heating apparatus and method ofproducing the infrared ray lamp
US7184656B2 (en) 1999-11-30 2007-02-27 Matsushita Electric Industrial Co., Ltd. Infrared lamp, heating apparatus, and method for manufacturing infrared lamp
US6591062B2 (en) * 2000-06-21 2003-07-08 Heraeus Noblelight Gmbh Infrared radiator with carbon fiber heating element centered by spacers
USRE40181E1 (en) * 2000-06-21 2008-03-25 Heraeus Noblelight Gmbh Infrared radiator with carbon fiber heating element centered by spacers

Also Published As

Publication number Publication date
GB8913914D0 (en) 1989-08-02
GB2233150A (en) 1991-01-02
AU5829090A (en) 1991-01-08

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