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Vehicle seat heating element comprising a heating cable with metallic filaments

A heating element and vehicle seat technology, which is applied in the direction of heating element shape, dielectric heating, dielectric heating electrode, etc. Large, prevent the formation of hot spots, the effect of excellent service life

Inactive Publication Date: 2014-04-30
NV BEKAERT SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] While individually insulating the individual wire strands or wires by painting is an effective way of addressing hot spot formation, individually painting or individually coating the individual wires or wires of a heating cable has serious drawbacks in that it is complex and very complex. expensive process
In addition, it is technically very difficult to apply a uniform and effective layer of varnish on fine wire or strands
If the varnish is not applied evenly or is not dried and cured properly, bending of the heating cable during its use can damage the varnish, resulting in a reduced lifespan of the heating cable or ineffective protection against hot spots

Method used

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  • Vehicle seat heating element comprising a heating cable with metallic filaments
  • Vehicle seat heating element comprising a heating cable with metallic filaments
  • Vehicle seat heating element comprising a heating cable with metallic filaments

Examples

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Embodiment Construction

[0048] figure 1 An embodiment of a vehicle seat heating element 10 according to the invention is shown. This element comprises a power source 11 (for example by connection to the battery of the vehicle), a control circuit 13 and a heating cable 15 connected to the control circuit 13 by means 17 for supplying said cable with current. The means 17 for connecting the heating cable may be of any type known in the art, for example by crimp connectors. figure 1 The vehicle seat heating element 10 includes a heating cable 15 with metal wires, wherein a predetermined number of metal wires in the heating cable are each respectively coated with one or more non-conductive wires or individually coated with multiple A non-conductive fiber or individually wound with a non-conductive tape. The clad wires are electrically connected in parallel in the device 17 for supplying current, whereby each clad wire is supplied with current.

[0049] The vehicle seat heating element according to the ...

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Abstract

A vehicle seat heating element is described comprising a heating cable and means for feeding electrical current to the heating cable. The heating cable comprises metallic filaments. A predetermined number of the metallic filaments in the heating cable are each individually wrapped with one or more non-electrically conductive filaments or individually wrapped with non-electrically conductive fibers or individually wrapped with one or more non-electrically conductive tapes. The benefit of such vehicle seat heating element is that a longer reliably functioning lifefime is obtained.

Description

technical field [0001] The invention relates to the field of vehicle (eg automobile) seat heating elements comprising electric heating cables. Background technique [0002] Electric heating cables comprising wires (eg 15-150 wires) are known and used for seat heating in cars. Each wire has a diameter of approximately 50 µm. Car seat heating can be achieved by installing an electric heating cable, for example in the form of one or more coils, in the seat to form a car seat heating element. In car seat heating elements, such a heating cable is connected to a power supply unit that supplies electric current, whereby the element can be heated to a suitable temperature. [0003] An important requirement among the requirements for vehicle seat heating systems is a long service life during which the vehicle seat heating system works correctly and reliably. [0004] In automotive seat heating elements or systems, electric heating cables are subjected to dynamic bending forces. T...

Claims

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Application Information

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IPC IPC(8): H05B6/56H05B3/56
CPCH05B3/56
Inventor F·兰克曼斯S·韦斯特拉腾
Owner NV BEKAERT SA
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