Kongsberg Automotive Ab

Mattias Persson

Daniel Josefsson

Milan Tuskes

Cristian Leu

An electrical heating element () comprises a core string () and an electrically conductive wire (), which is wrapped about the core string (), follows the core string () and is electrically insulated with respect to the core string (). A path () defined by the core string () includes a sequence of alternating first () and second () sections, wherein the wire () is wrapped in a pitch which, in the first sections (), is generally smaller than in the second sections (). The electrical heating element () can be used, e.g., in a heatable seat assembly.

Electrical heating element

An electrical heating assembly (), in particular for use in a heatable seat device, comprises a plurality of heating wires () and a support structure () adapted to fix the heating wires (). The heating wires () are arranged to form a plurality of hot points (), a respective hot point () being defined by a circular area of 6 mm in diameter in which there are present at least three sections of heating wire () which are not interconnected to each other within the area of the hot point ().

Electrical heating assembly

Systems, assemblies and circuits are provided for combined heating and occupancy for vehicle seats wherein a plurality of conductors are arranged in a parallel circuit configuration with respect to each other and are attached to a seat mat. Each of the conductors is configured to generate heat in response to receiving an electrical current. Each of the conductors is configured to generate an electrical field in response to receiving an electrical signal and with the electrical field being recognizable for determining presence of an occupant on the seat. At least one bypass conductor is connected between two of the conductors to preserve heating and/or occupancy detection capabilities of the circuit in the event of breakage in any one or more of the conductors.

Assembly, system, and circuit with combined heating and occupancy detecting for a vehicle seat

The present invention is directed to a heating and ventilation inlay for a vehicle seat that is adapted to be placed in a recess in a seat cushion or backrest of the vehicle seat underneath a seat trim. The heating and ventilation inlay comprises an arrangement of layers including an air permeable heating mat having a heating conductor running on the heating mat. Underneath the heating mat an air permeable layer of spacer material is connectable to a fan or suction fan for transporting air through the heating and ventilation inlay. The heating mat and the layer of spacer material are connected to each other and form a composite that can be handled as a unitary component, by a plurality of rivets which are distributed over the area of the heating and ventilation inlay. The rivets are pierced through the heating mat and the spacer material layer.

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Jönköping, Sweden

Mattias Persson