EP1337129B1 - Elément chauffant électrique destiné au chauffage des sièges et des volants - Google Patents

Elément chauffant électrique destiné au chauffage des sièges et des volants Download PDF

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Publication number
EP1337129B1
EP1337129B1 EP03001077A EP03001077A EP1337129B1 EP 1337129 B1 EP1337129 B1 EP 1337129B1 EP 03001077 A EP03001077 A EP 03001077A EP 03001077 A EP03001077 A EP 03001077A EP 1337129 B1 EP1337129 B1 EP 1337129B1
Authority
EP
European Patent Office
Prior art keywords
litz wire
arrangement according
seat
wire
core
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 - Lifetime
Application number
EP03001077A
Other languages
German (de)
English (en)
Other versions
EP1337129A2 (fr
EP1337129A3 (fr
Inventor
Jochen Michelmann
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.)
IG Bauerhin GmbH
Original Assignee
IG Bauerhin GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27618715&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1337129(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by IG Bauerhin GmbH filed Critical IG Bauerhin GmbH
Publication of EP1337129A2 publication Critical patent/EP1337129A2/fr
Publication of EP1337129A3 publication Critical patent/EP1337129A3/fr
Application granted granted Critical
Publication of EP1337129B1 publication Critical patent/EP1337129B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B3/20—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
    • H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
    • H05B3/345—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles knitted fabrics
    • 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
    • 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
    • H05B2203/029—Heaters specially adapted for seat warmers

Definitions

  • the invention relates to a heating element for a seat.
  • tin-plated or silver-plated copper conductors are used for heating seats, especially in passenger cars.
  • these heating conductors exhibit corrosion phenomena which are induced by moisture and the influence of salts. Due to these corrosion phenomena, heat conductor-damaging cross-sectional reductions occur, resulting in local overheating and, finally, breakage of the heat conductor, resulting in a shortened life of the heat conductor.
  • the coating with silver or tin or other metals so far increase the friction of the individual filaments of the heat conductor that the heating conductor bend due to its increased stiffness and thus can be severely damaged.
  • a cladding wire having a sheath of platinum enveloping a core of an alloy of 1 to 5% by weight of tungsten, balance palladium is disclosed.
  • This jacket wire is preferably used as a lead wire for resistance thermometer with a measuring resistor made of platinum.
  • DE 31 25 980 A1 discloses a wire-shaped semi-finished product for an electrical conductor wire having a certain maximum diameter, which consists essentially of platinum at least in the region of its free surface, wherein the surface is covered with a gold layer, wherein the core of the conductor wire may consist of nickel.
  • the disadvantage here is, inter alia, the use of difficult to process materials and their high price.
  • the electric heating element according to the invention comprises at least one stranded wire with at least one core-sheath wire, wherein the sheath of a steel and the core of copper or a copper alloy or the sheath of copper or a copper alloy and the core consists of a steel, wherein is advantageous if the steel is a carbon steel, as has proven in practice.
  • a strand consists of at least one strand of strand, which in turn consists of at least one wire, but advantageously at least two wires.
  • the strand can be used as a heating conductor and / or as a contact conductor (for contacting the heating conductors, in particular in knitted fabrics, see: DE 41 36 425 and DE 100 14 819 ) and / or as a supply of temperature sensors (sensors, such as PCT and NTC elements) act.
  • a heating conductor and / or as a contact conductor for contacting the heating conductors, in particular in knitted fabrics, see: DE 41 36 425 and DE 100 14 819
  • sensors such as PCT and NTC elements
  • the copper alloy contains copper and nickel and / or the steel is a stainless steel according to DIN 4401. Surprisingly, this type of steel has been found to have a particularly long service life of many thousands of hours.
  • the copper alloy consists of 90-10% copper by weight and 10-90% nickel by weight. Core and shell have cross-sectional areas in the ratio 1: 3 to 3: 1. Core and shell have at least approximately equal cross-sectional areas.
  • the wire diameter is 0.01 - 0.5 mm. In order to provide a high corrosion protection against external influences, the wire has an external electrical insulation.
  • the strand contains at least one left and at least one right-handed strand strand in order to minimize the tendency to torsion and to be able to lay the strand according to the requirements without axial Aufwikkeln can. This is especially true for multiple strand strands, if the number of left and right-rotating strand strands is the same.
  • the strands used according to the invention usually have 1 strand strand to about 100 strand strands, wherein the strand strands usually have 1 wire to about 100 wires.
  • the strand is fastened in and / or to a carrier material, in particular to a foam body and / or a knitted fabric, in particular by partial or short weft (in terms of textile effect).
  • a carrier material in particular to a foam body and / or a knitted fabric, in particular by partial or short weft (in terms of textile effect).
  • Another essential aspect of the invention is the use of a stranded wire for the electrical connection of divided by a Abspanngraben a seat electrical heating elements of seat parts. At least one such strand acts in this case as a bridge strand (ie a highly flexible strand between the two seat parts, which acts as a kind of "bridge"), which are usually soldered to the individual heating elements of the seat parts in an electrically connecting manner.
  • a bridge strand ie a highly flexible strand between the two seat parts, which acts as a kind of "bridge”
  • the term “trench” is to be understood as the area of a padded seat on which an outer seat cover is pulled “inwards” and fastened with an inner support frame. The result is a kind of “digging”, which in turn is surrounded by two adjacent padding beads. The unclamping of the seat cover is used primarily to avoid any occurring distortions of the seat cover for non-profiled seat surface.
  • the term “Abspanngraben” thus means the usual in the field of upholstery of seats term with its corresponding semantic content.
  • FIG. 1 - A sketchy plan view of a particular embodiment of the heating element according to the invention.
  • FIG. 1 is a sketch of a plan view of a particular embodiment of the heating element according to the invention shown.
  • the heating element essentially has a multiplicity of mutually parallel mesh threads 2 into which a heating conductor 1 is inserted sinusoidally. In each case three parallel current-supplying contact conductor 3 form a contact strip 4.
  • the heating conductor 1 extends over a section S parallel to a contact conductor 3, then crosses the adjacent contact conductor 3, to finally run parallel to it again; Heating conductor 1 and contact conductor 3 are electrically connected together.
  • Heating conductor 1 and contact conductor 3 consist of several strand strands, which in turn consist of seven core-sheath wires.
  • the wires have a core of a stainless steel according to DIN 4401 and a sheath of copper, wherein the core and sheath cross-sectional area have the same size.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Resistance Heating (AREA)
  • Steering Controls (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Claims (12)

  1. Système comprenant des éléments chauffants électriques de parties de siège, les éléments chauffants étant réalisés avec au moins un conducteur de chauffage (1) et/ou un conducteur de contact (3) et les éléments chauffants étant séparés les uns des autres et reliés les uns aux autres électriquement, la liaison électrique étant réalisée à l'aide d'une tresse de pontage, la tresse de pontage ainsi que le conducteur de chauffage (1) et/ou le conducteur de contact (3) des éléments chauffants étant caractérisés en ce queils présentent au moins une tresse qui présente au moins un fil à âme et enveloppe,
    a) l'enveloppe étant constituée d'un acier et l'âme en cuivre ou en alliage de cuivre ou
    b) l'enveloppe est réalisée en cuivre ou en alliage de cuivre et l'âme en acier.
  2. Système selon la revendication 1, dans lequel la tresse de pontage est le conducteur chauffant.
  3. Système selon les revendications 1 ou 2, dans lequel la tresse de pontage est le conducteur de contact.
  4. Système selon l'une des revendications précédentes, dans lequel la tresse de l'élément chauffant est fixée sur un corps en mousse et/ou un tricot, en particulier par raccordement partiel ou en court-circuit, et dans lequel la tresse de pontage est très flexible.
  5. Système selon la revendication 4, dans lequel la tresse de l'élément chauffant est cousue et/ou sur-cousue.
  6. Système selon l'une des revendications précédentes, dans lequel l'acier est un acier au carbone et/ou dans lequel l'acier est un acier allié selon DIN 4401.
  7. Système selon l'une des revendications précédentes, dans lequel l'alliage de cuivre contient du cuivre et du nickel, l'alliage de cuivre étant de préférence constitué de 90 à 10 % en poids de cuivre et de 10 à 90 % en poids de nickel.
  8. Système selon l'une des revendications précédentes, dans lequel l'âme et l'enveloppe ont des sections transversales dont les superficies sont dans le rapport de 1:3 à 3:1, et en particulier dans lequel l'âme et l'enveloppe présentent des sections transversales dont les superficies sont au moins approximativement identiques.
  9. Système selon l'une des revendications précédentes, dans lequel le diamètre du fil est compris entre 0,01 et 0,5 mm.
  10. Système selon l'une des revendications précédentes, dans lequel le fil présente une isolation électrique extérieure et de préférence une isolation en PTFE, en FEP, MFA ou en vernis de polyuréthane.
  11. Système selon l'une des revendications précédentes, dans lequel la tresse contient au moins un brin torsadé vers la gauche et au moins un brin torsadé vers la droite, le nombre des brins de la tresse torsadés vers la gauche étant de préférence identique au nombre des brins de la tresse torsadés vers la droite.
  12. Siège, en particulier siège de véhicule automobile, présentant un système selon l'une des revendications précédentes, et présentant des parties de siège séparées les unes des autres par un sillon de tension, des éléments chauffants électriques séparés des parties de siège étant passés dans le sillon de tension du siège et étant reliés électriquement les uns aux autres par la tresse de pontage.
EP03001077A 2002-02-14 2003-01-18 Elément chauffant électrique destiné au chauffage des sièges et des volants Expired - Lifetime EP1337129B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10206336A DE10206336B4 (de) 2002-02-14 2002-02-14 Elektrisches Heizelement für Sitzheizungen und Lenkradheizungen
DE10206336 2002-02-14

Publications (3)

Publication Number Publication Date
EP1337129A2 EP1337129A2 (fr) 2003-08-20
EP1337129A3 EP1337129A3 (fr) 2007-05-23
EP1337129B1 true EP1337129B1 (fr) 2011-03-16

Family

ID=27618715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03001077A Expired - Lifetime EP1337129B1 (fr) 2002-02-14 2003-01-18 Elément chauffant électrique destiné au chauffage des sièges et des volants

Country Status (4)

Country Link
US (1) US7041943B2 (fr)
EP (1) EP1337129B1 (fr)
AT (1) ATE502506T1 (fr)
DE (2) DE10206336B4 (fr)

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Also Published As

Publication number Publication date
DE10206336A1 (de) 2003-09-04
DE50313536D1 (de) 2011-04-28
DE10206336B4 (de) 2004-10-07
EP1337129A2 (fr) 2003-08-20
ATE502506T1 (de) 2011-04-15
US7041943B2 (en) 2006-05-09
US20030150850A1 (en) 2003-08-14
EP1337129A3 (fr) 2007-05-23

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