DE69502630T2 - IMPROVEMENTS ON THICK FILM ELEMENTS - Google Patents

IMPROVEMENTS ON THICK FILM ELEMENTS

Info

Publication number
DE69502630T2
DE69502630T2 DE69502630T DE69502630T DE69502630T2 DE 69502630 T2 DE69502630 T2 DE 69502630T2 DE 69502630 T DE69502630 T DE 69502630T DE 69502630 T DE69502630 T DE 69502630T DE 69502630 T2 DE69502630 T2 DE 69502630T2
Authority
DE
Germany
Prior art keywords
tracks
thick film
compensating
resistive
resistance
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
DE69502630T
Other languages
German (de)
Other versions
DE69502630D1 (en
Inventor
Peter Little
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.)
Pifco Ltd
Original Assignee
Pifco 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 Pifco Ltd filed Critical Pifco Ltd
Application granted granted Critical
Publication of DE69502630D1 publication Critical patent/DE69502630D1/en
Publication of DE69502630T2 publication Critical patent/DE69502630T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater
    • 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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Surface Heating Bodies (AREA)
  • Inorganic Insulating Materials (AREA)
  • Materials For Medical Uses (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Parts Printed On Printed Circuit Boards (AREA)
  • Magnetic Heads (AREA)
  • Resistance Heating (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Abstract

A method of manufacturing a thick film resistive heating element (1) comprising the application of one or more thick film resistive tracks (3, 3A, 3B) to the surface of an electrically insulative substrate (2) includes the application of at least one compensating thick film resistive track (6) to the surface of the substrate (2) which is electrically disconnected from said one or more thick film resistive tracks (3, 3A, 3B) at the time of application. By this means, when the resistance of said one or more resistive tracks (3, 3A, 3B), excluding the one or more compensating tracks (6), are measured should this measured resistance vary from a predetermined required value by more than a permitted tolerance then at least one of the compensating resistive tracks (6) can be electrically connected to said one or more resistive tracks (3, 3A, 3B) to bring the total resistance of the tracks (3, 3A, 3B, 6) within the permitted tolerance range. Preferably, each compensating thick film track (6) is printed in parallel with said one or more of the compensating tracks (3, 3A, 3B) whereby electrical connection of one or more of the compensating tracks (6) to said one or more resistive tracks (3, 3A, 3B) decreases the resistance of the electrically connected resistive tracks (3, 3A, 3B, 6) as a whole.
DE69502630T 1994-11-26 1995-11-27 IMPROVEMENTS ON THICK FILM ELEMENTS Expired - Fee Related DE69502630T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9423901A GB9423901D0 (en) 1994-11-26 1994-11-26 Improvements to thick film elements
PCT/GB1995/002751 WO1996017496A1 (en) 1994-11-26 1995-11-27 Improvements to thick film elements

Publications (2)

Publication Number Publication Date
DE69502630D1 DE69502630D1 (en) 1998-06-25
DE69502630T2 true DE69502630T2 (en) 1999-02-11

Family

ID=10765022

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69502630T Expired - Fee Related DE69502630T2 (en) 1994-11-26 1995-11-27 IMPROVEMENTS ON THICK FILM ELEMENTS

Country Status (9)

Country Link
EP (1) EP0793898B1 (en)
AT (1) ATE166520T1 (en)
AU (1) AU694815B2 (en)
CA (1) CA2204601A1 (en)
DE (1) DE69502630T2 (en)
ES (1) ES2117452T3 (en)
GB (1) GB9423901D0 (en)
NZ (1) NZ295712A (en)
WO (1) WO1996017496A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014269A1 (en) * 1995-10-11 1997-04-17 Strix Limited Electric heaters
GB9619579D0 (en) * 1996-09-19 1996-10-30 Deveney John Seaming iron
GB2322273B (en) 1997-02-17 2001-05-30 Strix Ltd Electric heaters
EP0994666B1 (en) * 1997-07-11 2005-09-21 Strix Limited Thick Film Electric Heaters
GB2344744B (en) 1998-11-26 2001-07-25 Strix Ltd Electrical beverage making apparatus
GB2351894B (en) * 1999-05-04 2003-10-15 Otter Controls Ltd Improvements relating to heating elements
JP4094960B2 (en) 2001-04-17 2008-06-04 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Heating system
ATE357831T1 (en) * 2003-07-30 2007-04-15 Koninkl Philips Electronics Nv HOUSEHOLD APPLIANCE AND HEATING STRUCTURE FOR HOUSEHOLD APPLIANCE
US8269150B2 (en) 2007-07-20 2012-09-18 Lg Electronics Inc. Electric heater
DE102007056917A1 (en) 2007-11-27 2009-06-04 BSH Bosch und Siemens Hausgeräte GmbH Method for tolerance compensation of electrical consumers
KR102093766B1 (en) 2018-08-21 2020-03-26 엘지전자 주식회사 Electric Heater

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153190B (en) * 1984-01-14 1987-09-09 Emi Ltd Improvements in or relating to heaters for water vessels
GB8704469D0 (en) * 1987-02-25 1987-04-01 Thorn Emi Appliances Thick film electrically resistive tracks
GB8807139D0 (en) * 1988-03-25 1988-04-27 Emi Plc Thorn Current source limitation for thick film heating elements
DE8902013U1 (en) * 1989-02-21 1990-03-22 Holtkamp, Manfred, 4543 Lienen, De

Also Published As

Publication number Publication date
AU694815B2 (en) 1998-07-30
ES2117452T3 (en) 1998-08-01
CA2204601A1 (en) 1996-06-06
ATE166520T1 (en) 1998-06-15
NZ295712A (en) 1998-08-26
AU3931595A (en) 1996-06-19
DE69502630D1 (en) 1998-06-25
GB9423901D0 (en) 1995-01-11
WO1996017496A1 (en) 1996-06-06
EP0793898B1 (en) 1998-05-20
EP0793898A1 (en) 1997-09-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee