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DE10017995A1 - Heating mat for vehicle seat locates electrical heating wire in central plane of injection-molded thermoplastic mat - Google Patents

Heating mat for vehicle seat locates electrical heating wire in central plane of injection-molded thermoplastic mat

Info

Publication number
DE10017995A1
DE10017995A1 DE2000117995 DE10017995A DE10017995A1 DE 10017995 A1 DE10017995 A1 DE 10017995A1 DE 2000117995 DE2000117995 DE 2000117995 DE 10017995 A DE10017995 A DE 10017995A DE 10017995 A1 DE10017995 A1 DE 10017995A1
Authority
DE
Germany
Prior art keywords
mat
heating
injection
central plane
thermoplastic
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Withdrawn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
DE2000117995
Other languages
German (de)
Inventor
Holger Thiessies
Olaf Thiessies
Werner Hasler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE2000117995 priority Critical patent/DE10017995A1/en
Publication of DE10017995A1 publication Critical patent/DE10017995A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14549Coating rod-like, wire-like or belt-like articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56Heating or ventilating devices
    • B60N2/5678Heating or ventilating devices characterised by electrical systems
    • B60N2/5685Resistance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58Seat coverings
    • B60N2/60Removable protective coverings
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/20Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/36Heating 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005Body finishings
    • B29L2031/3017Floor coverings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/732Floor coverings
    • B29L2031/7324Mats
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014Heaters using resistive wires or cables not provided for in H05B3/54
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017Manufacturing methods or apparatus for heaters
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/029Heaters specially adapted for seat warmers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Surface Heating Bodies (AREA)

Abstract

The electrical heating element is located approximately in the central plane of the thermoplastic mat (1), which is formed as an injection molding. An Independent claim is included for the method of manufacture in which the heating wire is laid inside the molding chamber of the opened injection mold. After mold closure, a thermoplastic elastomer is injected around it. Preferred features: The heating element is a heating wire (2) which snakes or meanders in the central plane. The plastic is a thermoplastic elastomer.

Description

Die Erfindung betrifft eine Heizmatte für einen Kraftfahrzeugsitz, wobei eine Thermoplastmatte ein Elektroheizelement aufnimmt.The invention relates to a heating mat for a motor vehicle seat, a thermoplastic mat accommodates an electric heating element.

Die DE 41 22 363 C1 beschreibt eine Heizmatte aus mehreren, miteinander verklebten Schichten, bei der in den Schichtaufbau zwischen zwei Schichten ein Elektroheizelement eingefügt ist. Der mehr­ schichtige Aufbau erfordert eine zeitaufwendige Montage, insbesondere wegen der Klebearbeiten.DE 41 22 363 C1 describes a heating mat made of several layers glued together, in which an electrical heating element is inserted into the layer structure between two layers. The more layered structure requires a time-consuming assembly, especially because of the adhesive work.

Aufgabe der Erfindung ist die Bereitstellung einer einschichtigen Heizmatte, die einfach und zeit­ sparend herstellbar ist.The object of the invention is to provide a single-layer heating mat that is simple and time can be produced economically.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß das Elektroheizelement etwa in der Mittelebene der als Spritzgießteil ausgebildeten Thermoplastmatte angeordnet ist.This object is achieved according to the invention in that the electric heating element approximately in the Middle plane of the thermoplastic mat designed as an injection molded part is arranged.

Die Erfindung unterscheidet sich insofern vom Stand der Technik, als das Elektroheizelement durch die Thermoplastmatte umspritzt ist. Das Elektroheizelement ist also sozusagen in die Ther­ moplastmatte integriert. Ein Verbinden des Elektroheizelements mit der Thermoplastmatte entfällt.The invention differs from the prior art in that the electric heating element is encapsulated by the thermoplastic mat. The electric heating element is so to speak in the Ther integrated mop mat. There is no need to connect the electric heating element to the thermoplastic mat.

Eine Anpassung an den lokalen Wärmebedarf der Heizmatte ist dadurch möglich, daß das Heizele­ ment als schlangenförmiger oder mäanderförmiger, in der Mittelebene der Thermoplastmatte ausgelegter Heizdraht ausgebildet ist.An adaptation to the local heat requirement of the heating mat is possible in that the Heizele ment as a serpentine or meandering, laid out in the central plane of the thermoplastic mat Heating wire is formed.

Eine Anpassung an den Fahrzeugsitz wird dadurch erzielt, daß die Heizmatte aus einem thermopla­ stischen Elastomeren besteht.An adaptation to the vehicle seat is achieved in that the heating mat from a thermopla elastic elastomers.

Des weiteren betrifft die Erfindung ein Verfahren zur Herstellung einer Heizmatte durch Spritzgie­ ßen des thermoplastischen Elastomeren, wonach innerhalb einer Formkammer des geöffneten Spritzgieß­ werkzeugs der Heizdraht ausgelegt und nach dem Schließen des Spritzgießwerkzeugs mit einem ther­ moplastischen Elastomeren umspritzt wird.The invention further relates to a method for producing a heating mat by injection molding ß of the thermoplastic elastomer, after which within a mold chamber of the opened injection molding the heating wire and after closing the injection mold with a ther is molded around plastic elastomers.

Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnung erläutert, in der darstellen:An embodiment of the invention is explained with reference to the drawing, in which:

Fig. 1 eine Draufsicht auf die Heizmatte und Fig. 1 is a plan view of the heating mat and

Fig. 2 einen Schnitt nach der Linie II-II in Fig. 1. Fig. 2 shows a section along the line II-II in FIG. 1.

Die Heizmatte nach den Fig. 1 und 2 umfaßt eine Thermoplastmatte 1 aus einem thermoplastischen Elastomeren und ein etwa in der Mittelebene der Thermoplastmatte 1 angeordnetes Elektroheizelement in Form eines schlingenförmig oder mäanderförmig, ausgelegten Heizdrahtes 2, dessen Enden an eine An­ schlußvorrichtung 3 angeschlossen sind.The mat according to FIGS. 1 and 2 comprises a thermoplastic mat 1 made of a thermoplastic elastomer and which is arranged approximately in the center plane of the thermoplastic mat 1 electric heating element in the form of a loop-shaped or meander-shaped, designed heating wire 2, the ends of which circuit device to a to 3 are connected.

Der Heizdraht 2 wird etwa in der Mittelebene einer Formkammer des geöffneten Spritzgießwerk­ zeugs durch eine Handlingvorrichtung in der gewünschten Form ausgelegt. Nach Schließen des Spritz­ gießwerkzeugs wird ein thermoplastisches Elastomeres in die Formkammer eingespritzt. Nach dem Öff­ nen des Spritzgießwerkzeugs kann man die Heizmatte in der dargestellten Form entnehmen.The heating wire 2 is approximately in the central plane of a mold chamber of the opened injection molding machine designed by a handling device in the desired shape. After closing the injection mold, a thermoplastic elastomer is injected into the molding chamber. After opening the injection mold, the heating mat can be removed in the form shown.

Claims (4)

1. Heizmatte für einen Kraftfahrzeugsitz, wobei eine Thermoplastmatte ein Elektroheizelement aufnimmt, dadurch gekennzeichnet, daß das Elektroheizelement etwa in der Mittelebene der als Spritz­ gießteil ausgebildeten Thermoplastmatte (1) angeordnet ist.1. heating mat for a motor vehicle seat, a thermoplastic mat accommodating an electric heating element, characterized in that the electric heating element is arranged approximately in the center plane of the injection molded thermoplastic mat ( 1 ). 2. Heizmatte nach Anspruch 1, dadurch gekennzeichnet, daß das Heizlement als schlingenförmig oder mäanderförmig, in der Mittelebene der Thermoplastmatte ausgelegter Heizdraht (2) ausgebildet ist.2. Heating mat according to claim 1, characterized in that the heating element is designed as a loop-shaped or meandering, in the central plane of the thermoplastic mat designed heating wire ( 2 ). 3. Heizmatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Heizmatte aus einem ther­ moplastischen Elastomeren besteht.3. heating mat according to claim 1 or 2, characterized in that the heating mat from a ther moplastic elastomers. 4. Verfahren zur Herstellung einer Heizmatte nach einem der Ansprüche 1 bis 3 durch Spritzgießen des thermoplastischen Elastomeren, dadurch gekennzeichnet, daß innerhalb einer Formkammer des geöff­ neten Spritzgießwerkzeugs der Heizdraht ausgelegt und nach dem Schließen des Spritzgießwerkzeugs mit einem thermoplastischen Elastomeren umspritzt wird.4. A method for producing a heating mat according to one of claims 1 to 3 by injection molding of the thermoplastic elastomer, characterized in that within a molding chamber of the open Neten injection mold the heating wire designed and after closing the injection mold with is encapsulated in a thermoplastic elastomer.
DE2000117995 2000-04-11 2000-04-11 Heating mat for vehicle seat locates electrical heating wire in central plane of injection-molded thermoplastic mat Withdrawn DE10017995A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000117995 DE10017995A1 (en) 2000-04-11 2000-04-11 Heating mat for vehicle seat locates electrical heating wire in central plane of injection-molded thermoplastic mat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000117995 DE10017995A1 (en) 2000-04-11 2000-04-11 Heating mat for vehicle seat locates electrical heating wire in central plane of injection-molded thermoplastic mat

Publications (1)

Publication Number Publication Date
DE10017995A1 true DE10017995A1 (en) 2001-10-18

Family

ID=7638375

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000117995 Withdrawn DE10017995A1 (en) 2000-04-11 2000-04-11 Heating mat for vehicle seat locates electrical heating wire in central plane of injection-molded thermoplastic mat

Country Status (1)

Country Link
DE (1) DE10017995A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864486A1 (en) * 2003-12-24 2005-07-01 Peugeot Citroen Automobiles Sa Carpet for motor vehicle, has heating unit and connection unit connected to electrical source, where connection unit has set of teeth forming tooth spreader
FR2870666A1 (en) * 2004-05-19 2005-11-25 Wet Automotive Systems Ag Upholstered unit for vehicle seat, has electric heating unit inserted between upper surface and covering layer, and thermal conducting unit disposed on surface in form of windings for covering heating surface
DE102005002693B3 (en) * 2005-01-19 2006-09-14 F. S. Fehrer Automotive Foam Gmbh Upholstered element with seat heating
WO2020244944A1 (en) * 2019-06-05 2020-12-10 Robert Bosch Gmbh Method for manufacturing a heating element, heating element, and use of the heating element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617816A1 (en) * 1986-04-04 1987-10-15 Metzeler Schaum Gmbh Process for producing an air-permeable upholstery part and upholstery part produced according to the process
DE3725408A1 (en) * 1987-07-31 1989-02-16 Audi Ag METHOD FOR PRODUCING A HEATABLE VEHICLE SEAT, VEHICLE SEAT AND PAD

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617816A1 (en) * 1986-04-04 1987-10-15 Metzeler Schaum Gmbh Process for producing an air-permeable upholstery part and upholstery part produced according to the process
DE3725408A1 (en) * 1987-07-31 1989-02-16 Audi Ag METHOD FOR PRODUCING A HEATABLE VEHICLE SEAT, VEHICLE SEAT AND PAD

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864486A1 (en) * 2003-12-24 2005-07-01 Peugeot Citroen Automobiles Sa Carpet for motor vehicle, has heating unit and connection unit connected to electrical source, where connection unit has set of teeth forming tooth spreader
FR2870666A1 (en) * 2004-05-19 2005-11-25 Wet Automotive Systems Ag Upholstered unit for vehicle seat, has electric heating unit inserted between upper surface and covering layer, and thermal conducting unit disposed on surface in form of windings for covering heating surface
DE102005002693B3 (en) * 2005-01-19 2006-09-14 F. S. Fehrer Automotive Foam Gmbh Upholstered element with seat heating
WO2020244944A1 (en) * 2019-06-05 2020-12-10 Robert Bosch Gmbh Method for manufacturing a heating element, heating element, and use of the heating element

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8141 Disposal/no request for examination