EP4065414A1 - Matelassure pour siège de véhicule automobile - Google Patents
Matelassure pour siège de véhicule automobileInfo
- Publication number
- EP4065414A1 EP4065414A1 EP20824119.0A EP20824119A EP4065414A1 EP 4065414 A1 EP4065414 A1 EP 4065414A1 EP 20824119 A EP20824119 A EP 20824119A EP 4065414 A1 EP4065414 A1 EP 4065414A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- format
- padding
- ink
- seam
- electrodes
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5678—Heating or ventilating devices characterised by electrical systems
- B60N2/5685—Resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
Definitions
- the invention relates to a padding for a motor vehicle seat, a cover of such padding and a seat comprising such padding.
- a cover for lining said block said cover comprising at least one flexible covering format provided with an electric heating circuit intended to be connected to an electric generator, so as to form a heating format, knowing that said circuit: o is based on conductive ink comprising a matrix of plastic material provided with a dispersion of conductive particles, in particular metallic, said ink being printed on the reverse side of said format, o comprises two electrodes, connected to connection terminals at each of the poles of said generator , and at least one resistive strip of substantially constant width L extending between said electrodes, said strip being intended to form a heating resistor.
- This provides a heated seat to improve occupant comfort.
- Ink printing is done in particular by screen printing.
- the width of the resistive band corresponds throughout this description to the dimension of said band along the perpendicular to the direction of current flow. Usually, this width is small, for example of the order of 4 mm, in order to create sufficient resistance to the flow of current to create heating of the heating format.
- the heated format may be provided with at least one seam - in particular decorative - extending in particular over the resistive strip, said seam forming in said format a plurality of seam holes.
- a stitch hole having a diameter of 0.1 mm is likely to create a rupture initiation of the circuit risking drastically reducing the section of said band and generating a "hot spot".
- the aim of the invention is to overcome these drawbacks.
- the invention provides padding for a motor vehicle seat, said padding comprising successively:
- a cover for lining said block said cover comprising at least one flexible covering format provided with an electric heating circuit intended to be connected to an electric generator, so as to form a heating format, knowing that said circuit: o is based on conductive ink comprising a matrix of plastic material provided with a dispersion of conductive particles, in particular metallic, said ink being printed on the reverse side of said format, o comprises two electrodes, connected to connection terminals at each of the poles of said generator , and at least one resistive band of substantially constant width L extending between said electrodes, said strip being intended to form a heating resistance, said padding also having the following characteristics:
- said format is provided with at least one seam extending over said resistive strip, said seam forming in said format a plurality of seam holes separated from each other by a stitch pitch P,
- the invention provides a cap of such padding and a seat comprising such padding.
- FIG.1 is a schematic front view of a padding according to an arrangement
- FIG.2 is a detailed schematic sectional view of the padding of Figure 1 according to one embodiment of the heated format.
- a padding 1 for a motor vehicle seat comprising successively:
- a cover 3 for lining said block said cover comprising at least one flexible covering format 4 provided with an electric heating circuit 5 intended to be connected to an electric generator, so as to form a heating format, knowing that said circuit : o is based on conductive ink comprising a matrix of plastic material provided with a dispersion of conductive particles, said ink being printed - in particular by screen printing - on the reverse side of said format, o comprises two electrodes 6, connected to connection terminals 7 at each of the poles of said generator, and at least one resistive strip 8 - in this case a plurality according to the arrangement of FIG. 1 - of substantially constant width L extending between said electrodes, said strip being intended to form a heating resistor, said padding also having the following characteristics:
- said format is provided with at least one seam 9 extending over said resistive strip, said seam forming in said format a plurality of seam holes 10 separated from each other by a seam pitch P, for example between 3 and 5 mm,
- the electrodes 6 are based on a first ink comprising particles of low resistivity
- a resistive strip 8 is based on a second ink comprising particles of high resistivity compared to that of said first ink.
- the low resistivity particles are based on metal, for example copper,
- the high resistivity particles are carbon based.
- the resistivity of the metallic ink is for example of the order of 0.5.10 4 Qm
- the resistivity of the carbon-based ink is for example of the order of 30.10 -4 Qm
- the circuit 5 is based on a single ink printed in greater thickness in the electrodes 6 than in a resistive strip 8, so as to make it possible to lower its electrical resistance in said electrodes and to increase it in said strip.
- an ink thickness of between 0.05 and 0.5 mm can be provided.
- a resistive strip 8 has the general shape of a rectangle.
- the heating format 4 is in the form of a complex comprising successively associated with one another: • an outer coating layer 11, for example based on leather or textile,
- the heating format 4 is associated edge to edge - for example by stitching or welding - with at least one other format not provided with an electrical circuit.
- the cap 3 is fitted on the padding block 2.
- the cap 3 is overmolded, at least in part, by the padding block 2, said block being based on molded foam.
- a cover 3 of such a padding 1 is now described, said cover comprising at least one flexible covering format 4 provided with an electric heating circuit 5 intended to be connected to an electric generator, so as to form a heating format. , knowing that said circuit:
- • comprises two electrodes 6, connected to connection terminals 7 at each of the poles of said generator, and at least one resistive strip 8 of substantially constant width L extending between said electrodes, said strip being intended to form a heating resistor, said cap further having the following characteristics: • said format is provided with at least one seam 9 extending over said resistive strip, said seam forming in said format a plurality of seam holes 10 separated from each other by a seam pitch P,
- a motor vehicle seat comprising a frame and such a padding 1 is described, said padding being mounted to cover said frame.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1913498A FR3103749B1 (fr) | 2019-11-29 | 2019-11-29 | Matelassure pour siège de véhicule automobile |
| PCT/EP2020/083916 WO2021105503A1 (fr) | 2019-11-29 | 2020-11-30 | Matelassure pour siège de véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4065414A1 true EP4065414A1 (fr) | 2022-10-05 |
Family
ID=69811117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20824119.0A Pending EP4065414A1 (fr) | 2019-11-29 | 2020-11-30 | Matelassure pour siège de véhicule automobile |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4065414A1 (fr) |
| FR (1) | FR3103749B1 (fr) |
| WO (1) | WO2021105503A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3126670B1 (fr) * | 2021-09-08 | 2023-09-01 | Tesca France | Appui-tête de siège de véhicule automobile |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8902260U1 (de) * | 1989-02-25 | 1989-05-11 | I.G. Bauerhin GmbH elektro-technische Fabrik, 6466 Gründau | Schutz für Heizleiterverbindungen von beheizten Sitz- bzw. Lehnflächen zur Sitzbeheizung von Fahrzeugsitzen |
| US6093910A (en) * | 1998-10-30 | 2000-07-25 | Tachi-S Engineering, Usa Inc. | Electric seat heater |
| US20080010815A1 (en) * | 2006-07-17 | 2008-01-17 | W.E.T. Automotive Group Ag | Heating tape structure |
| FR3040930B1 (fr) * | 2015-09-11 | 2018-12-07 | Faurecia Sieges D'automobile | Composant chauffant pour systeme coiffant d'element de siege de vehicule |
-
2019
- 2019-11-29 FR FR1913498A patent/FR3103749B1/fr active Active
-
2020
- 2020-11-30 WO PCT/EP2020/083916 patent/WO2021105503A1/fr not_active Ceased
- 2020-11-30 EP EP20824119.0A patent/EP4065414A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021105503A1 (fr) | 2021-06-03 |
| FR3103749B1 (fr) | 2022-11-11 |
| FR3103749A1 (fr) | 2021-06-04 |
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Legal Events
| Date | Code | Title | Description |
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| 17P | Request for examination filed |
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| AK | Designated contracting states |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
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