EP1001655A2 - Heater with PTC and fixed resistance elements - Google Patents

Heater with PTC and fixed resistance elements Download PDF

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Publication number
EP1001655A2
EP1001655A2 EP99308933A EP99308933A EP1001655A2 EP 1001655 A2 EP1001655 A2 EP 1001655A2 EP 99308933 A EP99308933 A EP 99308933A EP 99308933 A EP99308933 A EP 99308933A EP 1001655 A2 EP1001655 A2 EP 1001655A2
Authority
EP
European Patent Office
Prior art keywords
heating element
resistance heating
heater
relatively
variable 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.)
Withdrawn
Application number
EP99308933A
Other languages
German (de)
English (en)
French (fr)
Inventor
Edward Bulgajewski
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP1001655A2 publication Critical patent/EP1001655A2/en
Withdrawn legal-status Critical Current

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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
    • H05B3/10—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
    • 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
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H05B3/845—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields specially adapted for reflecting surfaces, e.g. bathroom - or rearview mirrors
    • 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
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • 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
    • H05B2203/011—Heaters using laterally extending conductive material as connecting means
    • 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
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient

Definitions

  • a heater includes:
  • Dual heater 10 includes heater pad 12 which acts as a substrate upon which subsequent layers comprising the heating elements and possibly a dielectric layer are superimposed, as will be explained hereinbelow.
  • Fixed resistance serpentine heater element 14 (also see Figure 4) is typically screen printed onto a first side of heater pad 12 and is in electrical communication through high power positive terminal 18 and common ground terminal 20 thereby forming an electrical circuit therethrough.
  • FIG 2 is a plan view of PTC conductor layer 22 which is in electrical communication with low power positive terminal 16 and common ground terminal 20 and which further Includes parallel rows of conductor elements 23.
  • PTC conductor layer 22 provides an electrical connection to PTC thermistor layer 24 as shown in Figure 3.
  • PTC conductor layer 22 is immediately adjacent to PTC thermistor layer 24 to provide such an electrical connection.
  • the variable resistance as a function of temperature is provided by the inherent characteristics of the PTC thermistor layer 24 in which the thermistor heating elements 25 are provided in parallel rows which contact the parallel rows of conductor elements 23.
  • Conductor elements 23 are typical perpendicular to thermistor heating elements 25.
  • Fixed resistance serpentine heater element 14 is separated from the combination of the PTC conductor layer 22 and PTC thermistor layer 24 by either the heater pad 12 (that is, fixed resistance serpentine heater element 14 is screen printed on the first side of the heater pad 12, and variable resistance PTC conductor and thermistor layers 22, 24 are formed on a second side of heater pad 12) or by dielectric layer 26 illustrated in Figure 5 (that is, fixed resistance serpentine heater element 14 and the PTC conductor and thermistor layers 22, 24 are formed on a single side of heater pad 12 with dielectric layer 26 separating heater element 14 from the combination of PTC conductor and thermistor layers 22, 24).
  • a switchable three point connection (not shown) is used with terminals 16, 18, 20 to provide for high and low power settings.
  • an electrical circuit is formed between low power positive terminal 16 and ground terminal 20 thereby providing an electrical circuit through PTC conductor layer 22 and PTC thermistor layer 24.
  • This provides a low power, self-regulating heat source for use in high ambient temperature or low heat transfer situations.

Landscapes

  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)
  • Thermistors And Varistors (AREA)
EP99308933A 1998-11-09 1999-11-09 Heater with PTC and fixed resistance elements Withdrawn EP1001655A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18938298A 1998-11-09 1998-11-09
US189382 1998-11-09

Publications (1)

Publication Number Publication Date
EP1001655A2 true EP1001655A2 (en) 2000-05-17

Family

ID=22697099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99308933A Withdrawn EP1001655A2 (en) 1998-11-09 1999-11-09 Heater with PTC and fixed resistance elements

Country Status (6)

Country Link
EP (1) EP1001655A2 (pt)
JP (1) JP2000150114A (pt)
KR (1) KR20000035181A (pt)
AU (1) AU5832199A (pt)
BR (1) BR9907538A (pt)
CA (1) CA2289142A1 (pt)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002060309A1 (en) * 2001-01-29 2002-08-08 Alper Srl Warming device for towels
WO2004047493A1 (en) * 2002-11-21 2004-06-03 W.E.T. Automotive Systems Ag Heater for an automotive vehicle and method of forming same
US7205510B2 (en) 2004-03-22 2007-04-17 W.E.T. Automotive Systems Ltd. Heater for an automotive vehicle and method of forming same
EP3532762A4 (en) * 2016-12-05 2020-07-22 Tech Design LLC SYSTEMS AND METHODS FOR HEATING SYSTEM IN DANGEROUS ENVIRONMENTS
CN112555975A (zh) * 2019-09-26 2021-03-26 广东美的环境电器制造有限公司 一种取暖器、控制方法和存储介质

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100787608B1 (ko) * 2005-04-28 2007-12-21 박종진 면상 발열체 제조 방법 및 그 발열체
KR102378357B1 (ko) 2015-08-24 2022-03-25 삼성디스플레이 주식회사 폴딩 가능한 디스플레이 장치 및 그 운용방법
ES2920133T3 (es) * 2018-02-05 2022-08-01 Ngk Spark Plug Co Calentador de cerámica
CN109673066A (zh) * 2018-12-06 2019-04-23 天津中亚慧通科技有限公司 一种汽车后视镜用电加热膜的制备方法

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002060309A1 (en) * 2001-01-29 2002-08-08 Alper Srl Warming device for towels
WO2004047493A1 (en) * 2002-11-21 2004-06-03 W.E.T. Automotive Systems Ag Heater for an automotive vehicle and method of forming same
US7306283B2 (en) 2002-11-21 2007-12-11 W.E.T. Automotive Systems Ag Heater for an automotive vehicle and method of forming same
US7741582B2 (en) 2002-11-21 2010-06-22 W.E.T. Automotive Systems Ag Heater for automotive vehicle and method of forming same
US8507831B2 (en) 2002-11-21 2013-08-13 W.E.T. Automotive Systems Ag Heater for an automotive vehicle and method of forming same
US8766142B2 (en) 2002-11-21 2014-07-01 W.E.T. Automotive Systems Ag Heater for an automotive vehicle and method of forming same
US9315133B2 (en) 2002-11-21 2016-04-19 Gentherm Gmbh Heater for an automotive vehicle and method of forming same
US9578690B2 (en) 2002-11-21 2017-02-21 Gentherm Gmbh Heater for an automotive vehicle and method of forming same
US7205510B2 (en) 2004-03-22 2007-04-17 W.E.T. Automotive Systems Ltd. Heater for an automotive vehicle and method of forming same
EP3532762A4 (en) * 2016-12-05 2020-07-22 Tech Design LLC SYSTEMS AND METHODS FOR HEATING SYSTEM IN DANGEROUS ENVIRONMENTS
CN112555975A (zh) * 2019-09-26 2021-03-26 广东美的环境电器制造有限公司 一种取暖器、控制方法和存储介质

Also Published As

Publication number Publication date
AU5832199A (en) 2000-05-25
KR20000035181A (ko) 2000-06-26
CA2289142A1 (en) 2000-05-09
JP2000150114A (ja) 2000-05-30
BR9907538A (pt) 2000-08-22

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