EP0409393A2 - Tapis chauffants - Google Patents

Tapis chauffants Download PDF

Info

Publication number
EP0409393A2
EP0409393A2 EP90305912A EP90305912A EP0409393A2 EP 0409393 A2 EP0409393 A2 EP 0409393A2 EP 90305912 A EP90305912 A EP 90305912A EP 90305912 A EP90305912 A EP 90305912A EP 0409393 A2 EP0409393 A2 EP 0409393A2
Authority
EP
European Patent Office
Prior art keywords
heating
sheets
heating element
layer
mat according
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Withdrawn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
EP90305912A
Other languages
German (de)
English (en)
Other versions
EP0409393A3 (en
Inventor
Michelle Wild
Trevor Vindin
Erich Halim
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.)
Metal Manufactures Ltd
Original Assignee
Metal Manufactures 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 Metal Manufactures Ltd filed Critical Metal Manufactures Ltd
Publication of EP0409393A2 publication Critical patent/EP0409393A2/fr
Publication of EP0409393A3 publication Critical patent/EP0409393A3/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Withdrawn legal-status Critical Current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
    • 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
    • H05B3/36—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in 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
    • 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
    • H05B2203/016—Heaters using particular 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
    • H05B2203/017—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
    • H05B2203/026—Heaters specially adapted for floor heating

Definitions

  • the present invention relates to heating mats for animals, in particular pigs, incorporating an electrical heating element.
  • pig heating mats it will be appreciated that the invention may be used for a variety of applications.
  • Pigs are normally kept in small pens of concrete construction to enable ease of cleaning and maintenance.
  • Floors may also consist of steel wire mesh, wooden or plastic slats or a combination of different materials. This has the disadvantage of providing a somewhat cold environment, particularly in countries having severe winter conditions. Such an environment is particularly hazardous to young piglets.
  • the present invention seeks to overcome or at least ameliorate the problems of the prior art by providing a mat with a flat constant temperature heating element.
  • a heating mat having a heating element and a cover encapsulating said heating element, the heating element comprising a flat member, said member comprising a layer of carbonaceous material and polyethylene glycol sandwiched between two sheets of plastic film, at least one of said sheets of plastic film having connecting means for supplying an electric current through the layer of carbonaceous material and polyethylene glycol, and power connection means passing from the heating element to the exterior of said cover for supplying electric current to said heating element connecting means.
  • the mat 4 contains a heating element 5 comprising a layer 6 consisting of a mixture of carbonaceous material and polyethylene glycol sandwiched between two sheets of plastic film 7 and 8, in this case polyethylene terephtalate.
  • a fibre layer of polyethylene terephtalate 9 and 10 is provided on the inside surface of the plastic sheets 7 and 8.
  • a pair of metal foil strip electrodes 11 and 12 are provided down each side of the element in contact with the layer 6 and sandwiched between sheets 7 and 8.
  • the lower surface may be covered with a sheet of reflective aluminium foil or other suitable material (not shown).
  • the heating element 5 is encapsulated between two sheets of fibreglass material to provide a tough durable outer cover 13 to the mat. Electric power is conveyed to the electrodes 11 and 12 of the heating element or elements by means of cable 14 having a stainless steel coil sleeve 15 to protect the cable against damage from the pigs or vermin. The sleeve 15 is tightly coiled to prevent dirt accumulating around the cable 14.
  • an aperture 16 is formed in the edge of the mat cover 13 by raising the upper layer of fibre glass 13′.
  • the cable 14 and its associated sleeve 15 are firmly and sealingly fixed into the aperture 16 to provide a moisture and dirt resistant seal.
  • the cable wires are connected internally to the respective electrodes 11 and 12.
  • the heating elements 5 are typically formed as individual strips 900mm long x 96mm wide x 380 microns thick.
  • the elements can also be produced as assembled heating units according to customer specifications for width and length.
  • the elements may be joined using 5mm wide strips of flat copper ribbon allowing full coverage of an area for uniform heat.
  • a polyester film rated at 5000 volts may be used as a form of double insulation.
  • the film is ultrasonically welded to produce a "bag" which can be made to fit the individual heating strips or varying sized assemblies. It is also possible to encase the elements in various outer materials for waterproofing and water resistance.
  • the standard temperatures are typically 55°C and 35°C. Other temperatures can be developed merely by varying the composition of the carbonaceous/polyethylene glycol mixture.
  • the standard voltages are currently 12 volt and 240 volt. Other voltages are also available by varying the components of the heating element. Volts Temperature°C Watts/CM2 Watts/900mm Strip 12 55 0.039 33.7 12 35 0.013 11.2 240 55 0.039 33.7 240 35 0.013 11.2 NOTE: It is possible to increase the watts/Cm2 power output by reducing the spacing of the copper electrodes on the element strip.
  • Figure 4 shows a typical power consumption and temperature performance graph of a mat illustrating the constant power consumption and temperature characteristics of the heating elements.
  • the flat heating element is made up of a carbonaceous-­polyethylene glycol mixture and is melted for extrusion between two durable sheets of polyester. These sheets are typically 96mm in width and are prepared typically with adhesive 5mm wide copper electrode strips.
  • Heating elements are produced off the line in lengths of typically 900mm as individual strips which can be joined together to provide various sized assemblies.
  • the typical ratings of the heating mats at 240 volts/50Hz are 75 watts starting power and 15 watts consumption or 125 watts starting power and 25 watts consumption both at an operating temperature of approximately 32°C.
  • the heating elements are unique in three ways: -
  • the elements have a set temperature which is determined by the composition of the conductive carbonaceous/polyethylene glycol mixture. As a result they will not overheat and do not require thermostatic control devices which represent a potential source of breakdown and an extra cost.
  • the elements self regulate in order to achieve an equilibrium between the built in temperature and that of the surrounding environment. If one area of the element is cold more current will be drawn to increase the temperature of that specific area. An increase in the current drawn only applies in that area and not across the whole element which therefore allows for energy efficiency.
  • the elements operate by using a positive temperature coefficient. That is, as the elements heat up, the resistance of the element increases directly. As the resistance increases the current is lowered and the temperature is maintained. Only a small amount of electrical current is required to maintain the set temperature.
  • the invention provides significant advantages over prior art mats including: - uniform heat over the desired surface area. - safety - the elements won't heat past the set temperature which is inherent in the carbonaceous polyethylene glycol mixture itself. - low power consumption - low operating costs. - energy efficient - self regulates to the surrounding environmental temperature. - a set temperature which is determined by the molecular composition of the carbonaceous/polyethylene glycol mixture. This enables the elements to function without the use of thermostatic control devices which are a potential source of breakdown and on extra cost. - silent, no maintenance/moving parts - no maintenance - invisible heat source - the thin element strips are easily concealed between materials.
  • the carbonaceous material in the composition with polyethylene glycol can for example take the form of graphite, or graphitic powder such as coke particles or can be carbon black.

Landscapes

  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)
EP19900305912 1989-07-17 1990-05-31 Heating mats Withdrawn EP0409393A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPJ531089 1989-07-17
AU5310/89 1989-07-17

Publications (2)

Publication Number Publication Date
EP0409393A2 true EP0409393A2 (fr) 1991-01-23
EP0409393A3 EP0409393A3 (en) 1992-01-15

Family

ID=3774066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900305912 Withdrawn EP0409393A3 (en) 1989-07-17 1990-05-31 Heating mats

Country Status (1)

Country Link
EP (1) EP0409393A3 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997038555A1 (fr) * 1996-04-11 1997-10-16 Smolyaninov, Andrei Nikolaevich Unite de chauffage plane et souple et procede de fabrication
WO2007008734A2 (fr) 2005-07-12 2007-01-18 Carbonic Heat Corporation Radiateur plat et procede de fabrication
EP1847784A1 (fr) * 2006-04-19 2007-10-24 Ching-Song Chen Appareil de chauffage avec des plaques chauffantes minces
US7690366B1 (en) 2009-05-18 2010-04-06 Robert Bosch Gmbh Throttle valve and method of producing the same
US7955542B2 (en) 2009-05-18 2011-06-07 Robert Bosch Gmbh Method of producing a throttle assembly
CN106162957A (zh) * 2016-09-07 2016-11-23 芜湖桑乐金电子科技有限公司 阻燃碳晶发热板及其制备方法
RU168017U1 (ru) * 2015-12-04 2017-01-17 Общество с ограниченной ответственностью "ИМПУЛЬС" Термоэлектрический мат
CN106376111A (zh) * 2016-09-07 2017-02-01 芜湖桑乐金电子科技有限公司 可弯折碳晶发热板及其制备方法
CN106376109A (zh) * 2016-09-07 2017-02-01 芜湖桑乐金电子科技有限公司 抗老化碳晶发热板及其制备方法
CN106413145A (zh) * 2016-09-07 2017-02-15 芜湖桑乐金电子科技有限公司 高韧性碳晶发热板及其制备方法
CN106455152A (zh) * 2016-09-07 2017-02-22 芜湖桑乐金电子科技有限公司 可弯折碳晶发热板及其制备方法
CN106455153A (zh) * 2016-09-07 2017-02-22 芜湖桑乐金电子科技有限公司 阻燃碳晶发热板及其制备方法
CN106455155A (zh) * 2016-09-07 2017-02-22 芜湖桑乐金电子科技有限公司 可弯折碳晶发热板及其制备方法
RU2811643C1 (ru) * 2023-07-07 2024-01-15 Игорь Сергеевич Белышев Термоэлектрический мат для разогрева водоизоляционного ковра при ремонте рулонных кровель

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106413150A (zh) * 2016-09-07 2017-02-15 芜湖桑乐金电子科技有限公司 高韧性碳晶发热板及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078937A1 (fr) * 1981-10-30 1983-05-18 General Electric Company Composition thermoplastique renforcée
US4629584A (en) * 1984-09-11 1986-12-16 Shigeyuki Yasuda Composition of heat-sensitive electrosensitive substances and a panel heater made therefrom
EP0219678A1 (fr) * 1985-09-18 1987-04-29 Shigeyuki Yasuda Procédé pour contrôler la température exothermique stationaire lors de l'utilisation de résistances électriques composites dépendant de la température
EP0223444A2 (fr) * 1985-10-28 1987-05-27 COLLINS & AIKMAN CORPORATION Natte de chauffage électrique avec surface antistatique
US4717812A (en) * 1985-05-21 1988-01-05 Shigma, Inc. Planar heat generator
EP0376195A1 (fr) * 1988-12-24 1990-07-04 Shigeyuki Yasuda Méthode de fabrication d'un élément chauffant plat flexible à autorégulation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078937A1 (fr) * 1981-10-30 1983-05-18 General Electric Company Composition thermoplastique renforcée
US4629584A (en) * 1984-09-11 1986-12-16 Shigeyuki Yasuda Composition of heat-sensitive electrosensitive substances and a panel heater made therefrom
US4717812A (en) * 1985-05-21 1988-01-05 Shigma, Inc. Planar heat generator
EP0219678A1 (fr) * 1985-09-18 1987-04-29 Shigeyuki Yasuda Procédé pour contrôler la température exothermique stationaire lors de l'utilisation de résistances électriques composites dépendant de la température
EP0223444A2 (fr) * 1985-10-28 1987-05-27 COLLINS & AIKMAN CORPORATION Natte de chauffage électrique avec surface antistatique
EP0376195A1 (fr) * 1988-12-24 1990-07-04 Shigeyuki Yasuda Méthode de fabrication d'un élément chauffant plat flexible à autorégulation

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997038555A1 (fr) * 1996-04-11 1997-10-16 Smolyaninov, Andrei Nikolaevich Unite de chauffage plane et souple et procede de fabrication
US8138457B2 (en) 2005-07-12 2012-03-20 Carbonic Heat Corporation Plate-type heater and a method for the manufacture thereof
WO2007008734A2 (fr) 2005-07-12 2007-01-18 Carbonic Heat Corporation Radiateur plat et procede de fabrication
CN101496445B (zh) * 2005-07-12 2012-06-20 碳热公司 板式加热器及其制造方法
JP2009507330A (ja) * 2005-07-12 2009-02-19 カーボニック・ヒート・コーポレイション プレート型ヒーターおよびその製造方法
EP1907759A4 (fr) * 2005-07-12 2010-03-24 Carbonic Heat Corp Radiateur plat et procede de fabrication
EP1907759A2 (fr) * 2005-07-12 2008-04-09 Carbonic Heat Corporation Radiateur plat et procede de fabrication
EP1847784A1 (fr) * 2006-04-19 2007-10-24 Ching-Song Chen Appareil de chauffage avec des plaques chauffantes minces
US7690366B1 (en) 2009-05-18 2010-04-06 Robert Bosch Gmbh Throttle valve and method of producing the same
US7955542B2 (en) 2009-05-18 2011-06-07 Robert Bosch Gmbh Method of producing a throttle assembly
RU168017U1 (ru) * 2015-12-04 2017-01-17 Общество с ограниченной ответственностью "ИМПУЛЬС" Термоэлектрический мат
CN106376111A (zh) * 2016-09-07 2017-02-01 芜湖桑乐金电子科技有限公司 可弯折碳晶发热板及其制备方法
CN106376109A (zh) * 2016-09-07 2017-02-01 芜湖桑乐金电子科技有限公司 抗老化碳晶发热板及其制备方法
CN106413145A (zh) * 2016-09-07 2017-02-15 芜湖桑乐金电子科技有限公司 高韧性碳晶发热板及其制备方法
CN106455152A (zh) * 2016-09-07 2017-02-22 芜湖桑乐金电子科技有限公司 可弯折碳晶发热板及其制备方法
CN106455153A (zh) * 2016-09-07 2017-02-22 芜湖桑乐金电子科技有限公司 阻燃碳晶发热板及其制备方法
CN106455155A (zh) * 2016-09-07 2017-02-22 芜湖桑乐金电子科技有限公司 可弯折碳晶发热板及其制备方法
CN106162957A (zh) * 2016-09-07 2016-11-23 芜湖桑乐金电子科技有限公司 阻燃碳晶发热板及其制备方法
RU2811643C1 (ru) * 2023-07-07 2024-01-15 Игорь Сергеевич Белышев Термоэлектрический мат для разогрева водоизоляционного ковра при ремонте рулонных кровель

Also Published As

Publication number Publication date
EP0409393A3 (en) 1992-01-15

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