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EP0307007A3 - Making electrical contact between metals and resistive emaking electrical contact between metals and resistive elements lements - Google Patents

Making electrical contact between metals and resistive emaking electrical contact between metals and resistive elements lements Download PDF

Info

Publication number
EP0307007A3
EP0307007A3 EP88115948A EP88115948A EP0307007A3 EP 0307007 A3 EP0307007 A3 EP 0307007A3 EP 88115948 A EP88115948 A EP 88115948A EP 88115948 A EP88115948 A EP 88115948A EP 0307007 A3 EP0307007 A3 EP 0307007A3
Authority
EP
European Patent Office
Prior art keywords
contact layer
metals
electrical contact
members
resistive
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.)
Granted
Application number
EP88115948A
Other versions
EP0307007A2 (en
EP0307007B1 (en
Inventor
Neville S. Batliwalla
Michael Charles Jones
Ravinder K. Oswal
Jeff Shafe
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.)
Raychem Corp
Original Assignee
Raychem Corp
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 Raychem Corp filed Critical Raychem Corp
Priority to AT88115948T priority Critical patent/ATE84658T1/en
Publication of EP0307007A2 publication Critical patent/EP0307007A2/en
Publication of EP0307007A3 publication Critical patent/EP0307007A3/en
Application granted granted Critical
Publication of EP0307007B1 publication Critical patent/EP0307007B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/027—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient consisting of conducting or semi-conducting material dispersed in a non-conductive organic 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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
    • 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
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • 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
    • H05B2203/006—Heaters using a particular layout for the resistive material or resistive elements using interdigitated electrodes
    • 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
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Resistance Heating (AREA)
  • Non-Adjustable Resistors (AREA)
  • Surface Heating Bodies (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Thermistors And Varistors (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Contacts (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Abstract

In an electrical device comprising first and second members having different resistivities, a thin contact layer of intermediate resistivity is provided between the first and second members. The contact layer, (which may comprise a conductive polymer) is intimately bonded to the member of highest resistivity (which may comprise a second conductive polymer) e.g., by a printing process. The member of lowest resistivity may comprise a third conductive polymer, in which case it may be intimately bonded to the intermediate contact layer, e.g., by a printing process, or it may comprise a metallic member, in which case good electrical contact may be made merely by pressing the metallic member against the contact layer even when the contact area is large and/or long, and even when the pressure is sufficiently low to permit, if necessary, relative movement of the metallic member and the contact layer without disrupting the bond between the contact layer and the resistive element. A preferred device comprises four or more members of different resistivities. The members are arranged adjacent each other in order of decreasing resistivity. The least resistive member preferably comprises a metal and the other members conductive polymer materials.
EP88115948A 1984-09-14 1985-09-12 Making electrical contact between metals and resistive elements Expired - Lifetime EP0307007B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88115948T ATE84658T1 (en) 1984-09-14 1985-09-12 ELECTRICAL CONTACT BETWEEN METALS AND RESISTANCE ELEMENTS.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US65092084A 1984-09-14 1984-09-14
US66301484A 1984-10-19 1984-10-19
US73540885A 1985-05-17 1985-05-17
US650920 1985-05-17
US735408 1985-05-17
US663014 2000-09-15

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP85306477.2 Division 1985-09-12

Publications (3)

Publication Number Publication Date
EP0307007A2 EP0307007A2 (en) 1989-03-15
EP0307007A3 true EP0307007A3 (en) 1989-04-12
EP0307007B1 EP0307007B1 (en) 1993-01-13

Family

ID=27417856

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88115948A Expired - Lifetime EP0307007B1 (en) 1984-09-14 1985-09-12 Making electrical contact between metals and resistive elements
EP85306477A Expired EP0176284B1 (en) 1984-09-14 1985-09-12 Electrical contact between metals of different resistivities

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP85306477A Expired EP0176284B1 (en) 1984-09-14 1985-09-12 Electrical contact between metals of different resistivities

Country Status (4)

Country Link
EP (2) EP0307007B1 (en)
JP (1) JP2554617B2 (en)
AT (1) ATE74480T1 (en)
DE (2) DE3586994T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3686296T2 (en) * 1985-05-17 1992-12-17 Raychem Corp FILM HEATING ELEMENTS.
US4882466A (en) * 1988-05-03 1989-11-21 Raychem Corporation Electrical devices comprising conductive polymers
FR2694472B1 (en) * 1992-07-29 1994-09-09 Greninguey Bernard Heating tool made of composite materials.
JPH08802U (en) * 1994-12-09 1996-05-21 八鹿鉄工株式会社 Ordinary combine second mower
EP1525900B1 (en) 2003-10-24 2006-05-03 Amaxa GmbH Process for the formation of electrically contactable conductors on a conductive polymer and products obtainable therewith
IT201700048690A1 (en) * 2017-05-05 2018-11-05 Eltek Spa ELECTRIC HEATER DEVICE, PARTICULARLY A PTC EFFECT

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB838478A (en) * 1958-07-14 1960-06-22 Sierracin Corp Improvements in electrically conductive optical articles, particularly connections therefor
US3287684A (en) * 1964-02-27 1966-11-22 Motson Services Inc Electrical heating device
US3299253A (en) * 1963-10-30 1967-01-17 Sierracin Corp Warming device
DE2160358A1 (en) * 1971-12-06 1973-06-14 Manfred Schrauder Wire-less electric heating plate - based on conductive dispersion plastics-coated plate for direct floor heating
DE2316707A1 (en) * 1972-04-06 1973-10-31 Kureha Chemical Ind Co Ltd HUMIDITY PLATE HEATER
US4323726A (en) * 1980-07-24 1982-04-06 Ppg Industries, Inc. Electrical bus bar assembly
US4421582A (en) * 1975-08-04 1983-12-20 Raychem Corporation Self-heating article with deformable electrodes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5148843A (en) * 1974-10-23 1976-04-27 Dainippon Printing Co Ltd
JPS55122381A (en) * 1979-03-15 1980-09-20 Toppan Printing Co Ltd Method of forming electrode
US4348584A (en) * 1979-05-10 1982-09-07 Sunbeam Corporation Flexible heating elements and processes for the production thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB838478A (en) * 1958-07-14 1960-06-22 Sierracin Corp Improvements in electrically conductive optical articles, particularly connections therefor
US3299253A (en) * 1963-10-30 1967-01-17 Sierracin Corp Warming device
US3287684A (en) * 1964-02-27 1966-11-22 Motson Services Inc Electrical heating device
DE2160358A1 (en) * 1971-12-06 1973-06-14 Manfred Schrauder Wire-less electric heating plate - based on conductive dispersion plastics-coated plate for direct floor heating
DE2316707A1 (en) * 1972-04-06 1973-10-31 Kureha Chemical Ind Co Ltd HUMIDITY PLATE HEATER
US4421582A (en) * 1975-08-04 1983-12-20 Raychem Corporation Self-heating article with deformable electrodes
US4323726A (en) * 1980-07-24 1982-04-06 Ppg Industries, Inc. Electrical bus bar assembly

Also Published As

Publication number Publication date
EP0307007A2 (en) 1989-03-15
EP0176284B1 (en) 1992-04-01
DE3585761D1 (en) 1992-05-07
ATE74480T1 (en) 1992-04-15
EP0176284A1 (en) 1986-04-02
DE3586994D1 (en) 1993-02-25
JPS6199292A (en) 1986-05-17
EP0307007B1 (en) 1993-01-13
DE3586994T2 (en) 1993-08-19
JP2554617B2 (en) 1996-11-13

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