WO2024078652A1 - Élément chauffant ainsi que procédé et dispositif de production d'un élément chauffant - Google Patents

Élément chauffant ainsi que procédé et dispositif de production d'un élément chauffant Download PDF

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Publication number
WO2024078652A1
WO2024078652A1 PCT/DE2023/000120 DE2023000120W WO2024078652A1 WO 2024078652 A1 WO2024078652 A1 WO 2024078652A1 DE 2023000120 W DE2023000120 W DE 2023000120W WO 2024078652 A1 WO2024078652 A1 WO 2024078652A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
carrier
thermally activatable
activatable adhesive
heating element
Prior art date
Application number
PCT/DE2023/000120
Other languages
German (de)
English (en)
Inventor
Peter Tremmel
Gábor SZEGEDI
Soma VAMI
István Raul BOLDIS
Original Assignee
Gentherm 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
Priority claimed from DE102022004811.6A external-priority patent/DE102022004811A1/de
Application filed by Gentherm Gmbh filed Critical Gentherm Gmbh
Publication of WO2024078652A1 publication Critical patent/WO2024078652A1/fr

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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
    • 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
    • B60N2/56—Heating or ventilating devices
    • B60N2/5607—Heating or ventilating devices characterised by convection
    • B60N2/5621—Heating or ventilating devices characterised by convection by air
    • B60N2/5642—Heating or ventilating devices characterised by convection by air with circulation of air through a layer inside the seat
    • 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
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • 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
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
    • 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 present invention relates to a heating element and a device and a method for producing a heating element.
  • heating elements often have an electrical heating conductor, which is an electrical heating resistor and can be supplied with electrical voltage in order to give off heat to the vehicle seat.
  • electrical heating conductor which is an electrical heating resistor and can be supplied with electrical voltage in order to give off heat to the vehicle seat.
  • foam heating wires or electrical heating conductors into a seat cushion. This may require that the heating element is attached to the foam form and/or the upholstery cover. Adhesives are already used for this, which are applied flatly to the entire heating element, after which the heating element is attached to the upholstery.
  • the invention relates to a heating element with a carrier and at least one electrical heating conductor arranged on the carrier.
  • the at least one electrical heating conductor arranged on the carrier can have a straight course in some areas and a curved course in other areas.
  • the carrier can be designed as a flat carrier. It is provided that at least one side of the carrier has thermally activatable adhesive in sections.
  • the carrier can be provided with thermally activatable adhesive in sections such that the thermally activatable adhesive can hold the carrier together with the at least one electrical heating conductor arranged on the carrier at a predetermined installation position of a vehicle seat.
  • such an installation position is formed via a cushion of a vehicle seat, to which the carrier is or is to be fixed together with the at least one electrical heating conductor arranged on the carrier.
  • the carrier is provided with the thermally activatable adhesive predominantly or even exclusively in those areas where the at least one electrical heating conductor is not located. It is thus possible that the at least one electrical heating conductor arranged on the carrier and the thermally activatable adhesive are positioned on the carrier in such a way that the at least one electrical heating conductor is arranged on the carrier predominantly or even completely without coverage with the thermally activatable adhesive.
  • the carrier can consist at least partially or completely of a textile, such as a knitted fabric, a fleece or a film made of a polymer material.
  • the at least one electrical heating conductor can be formed from an electrically conductive film in various embodiments. It can also be the case, for example, that the at least one electrical heating conductor is formed by at least one single heating wire or by at least one strand.
  • the at least one electrical heating conductor can also contain metal or graphite.
  • the at least one electrical heating conductor can be formed by at least one carbon fiber.
  • the at least one electrical heating conductor can be arranged on the carrier or fastened to the carrier by sewing the at least one electrical heating conductor onto the carrier and/or by knitting the at least one electrical heating conductor into the carrier.
  • the thermally activatable adhesive can be a thermally activatable adhesive which changes into a liquid phase above a certain activation temperature and is applied to the carrier in the liquid phase.
  • the thermally activatable adhesive can be heated using an adhesive application device described below, so that the thermally activatable adhesive changes into the liquid phase.
  • the adhesive application device can then provide the carrier with the thermally activatable adhesive, whereby the thermally activatable adhesive is in the liquid phase.
  • the thermally activatable adhesive applied to the carrier can harden and, if necessary, fix the carrier to a vehicle seat or to a predetermined installation position of a vehicle seat. Such an installation position can be provided, for example, via a cushion of a vehicle seat.
  • the thermally activatable adhesive is a thermally activatable adhesive which is in the liquid phase at room temperature and has an activation temperature which is above room temperature.
  • room temperature can be understood here as a temperature which starts at 15° C and goes up to 30° C.
  • the thermally activatable adhesive can be applied to at least one side of the carrier at room temperature or in the liquid phase.
  • the thermally activatable adhesive is applied at least in sections as a straight and/or meandering adhesive strip.
  • the thermally activatable adhesive can be applied to the carrier very quickly.
  • An adhesive application device or an adhesive nozzle designed as a component of an adhesive application device does not need to be raised to apply the thermally activatable adhesive, but can remain in the vicinity of the carrier and apply the thermally activatable adhesive as an adhesive strip to at least one side of the carrier.
  • embodiments have also proven to be useful in which the adhesive or the thermally activatable adhesive is applied at least in sections as a grid-shaped structure to at least one side of the carrier.
  • the thermally activatable adhesive is applied to at least one side of the carrier with low pressure or that the thermally activatable adhesive is applied to at least one side of the carrier as part of an application process.
  • the adhesive or the thermally activatable adhesive may form at least one adhesive point on the carrier.
  • Such embodiments have a relatively low requirement for thermally activatable adhesive in order to be able to fix the carrier together with the at least one electrical heating conductor to a vehicle seat or to a cushion of a vehicle seat.
  • a heating element comprises a thermally activatable adhesive which is applied at least in sections as an adhesive strip running in a straight line and/or meandering manner, wherein the heating element also comprises thermally activatable adhesive which forms at least one adhesive point on the carrier.
  • the heating element comprises a thermally activatable adhesive which is applied at least in sections as a straight and/or meandering adhesive strip, wherein it is also provided that the heating element comprises thermally activatable adhesive which forms several adhesive points on the carrier and is formed on the same side of the flat carrier, wherein the several adhesive points are arranged along a row or along a straight line.
  • the row or the straight line along which the several adhesive points are arranged can run parallel or perpendicular to the adhesive strip which is formed on the same side of the carrier.
  • an adhesive strip and/or an adhesive dot has a minimum width of at least 3 mm.
  • Such embodiments sometimes offer various advantages when producing the heating element. For example, no spray mist is created when the thermally activatable adhesive is applied to the carrier with such dimensions. The thermally activatable adhesive is therefore only located in a target position intended for the thermally activatable adhesive.
  • the application of such an adhesive strip or the application of such an adhesive dot to at least one side of the carrier can be carried out as part of an application process using an adhesive application device.
  • the thermally activated adhesive may be water-soluble.
  • the heating element can have several adhesive strips on a common side of the carrier, wherein the several adhesive strips have a relative distance from each other that is a maximum of 2 cm and in particular at least 10 mm to a maximum of 50 mm. Several adhesive strips can run parallel to each other at least in sections.
  • the heating element may have a plurality of adhesive points located on a common side of the carrier, wherein the plurality of adhesive points have a relative distance from one another of a maximum of 2 cm and in particular of at least 10 mm to a maximum of 50 mm.
  • the heating element it has also proven to be effective if the respective side of the carrier is covered by less than 20% of the thermally activated adhesive.
  • the thermally activated adhesive may have an activation temperature between 80 °C and 150 °C, in particular between 100 °C and 130 °C, and preferably between 110 °C and 120 °C.
  • the heating element may comprise a spacer arranged on the carrier, which at least partially, predominantly or at least approximately completely covers the at least one electrical heating conductor, wherein the thermally activatable adhesive is applied to the carrier as at least one adhesive strip and runs uninterruptedly or as at least one closed path around the spacer. This allows a seal for the heating element to be provided via the at least one adhesive strip.
  • the spacer may be arranged on the carrier via a welded connection.
  • the at least one adhesive strip runs around the spacer at an at least approximately constant distance from the spacer without interruption or as at least one closed path.
  • the at least one adhesive strip can thus follow a circumferential course of the spacer.
  • the thermally activatable adhesive can be applied to the carrier as exactly two or at least two adhesive strips, with the exactly two or at least two adhesive strips each running uninterruptedly or as a closed path around the spacer. It can be that the exactly two or at least two adhesive strips run parallel to one another and each uninterruptedly or as a closed path around the spacer. It has proven useful here if the exactly two or at least two adhesive strips each run uninterruptedly or as a closed path around the spacer at a distance that is at least approximately the same from the spacer. The exactly two or at least two adhesive strips can therefore each follow a circumferential path of the spacer.
  • the invention further relates to a use of at least one heating element according to at least one of the embodiments described above for heating a seat cushion of a vehicle seat and/or for heating a backrest of a vehicle seat.
  • the invention also relates to a ventilation insert for a vehicle seat.
  • the ventilation insert comprises an air-permeable ventilation layer and a carrier which is designed to be air-permeable.
  • the air-permeable ventilation layer and the carrier lie on top of one another. It is provided that the carrier extends beyond the air-permeable ventilation layer at the edge, forming at least one overhang, and that the ventilation insert has thermally activatable adhesive at least in sections in the area of the at least one overhang.
  • the air-permeable ventilation layer and the carrier can lie on top of one another in such a way that a broad side surface of the air-permeable ventilation layer is hermetically sealed by the carrier or that a broad side surface of the air-permeable ventilation layer is hermetically sealed by the carrier.
  • the carrier can be designed as a flat carrier.
  • the carrier can consist at least partially or completely of a textile, such as a knitted fabric, a fleece or a film made of a polymer material.
  • the air-permeable ventilation layer can consist at least partially or entirely of a textile, such as a knitted fabric, of plastic or of other materials.
  • the air-permeable ventilation layer and the carrier can lie on top of each other and be attached or fixed to each other.
  • the air-permeable ventilation layer and the carrier can be glued to each other.
  • the thermally activatable adhesive can also be a thermally activatable adhesive which changes to a liquid phase above a certain activation temperature and is applied to the at least one projection in the liquid phase or has been applied to the at least one projection in the liquid phase.
  • the thermally activatable adhesive can be heated via an adhesive application device, so that the thermally activatable adhesive changes to the liquid phase.
  • the adhesive application device can then provide the carrier or the at least one projection of the carrier with the thermally activatable adhesive, the thermally activatable adhesive being in the liquid phase.
  • the thermally activatable adhesive applied to the carrier or the at least one projection of the carrier can harden and, if necessary, fix the carrier to a vehicle seat or to a predetermined installation position of a vehicle seat.
  • Such an installation position can be provided, for example, via a cushion of a vehicle seat.
  • the thermally activatable adhesive is a thermally activatable adhesive which is in the liquid phase at room temperature and has an activation temperature which is above room temperature.
  • room temperature can be understood here as a temperature which starts at 15° C and goes up to 30° C.
  • the thermally activatable adhesive can be applied to the at least one projection of the carrier at room temperature or in the liquid phase.
  • the thermally activatable adhesive can also be applied to the at least one projection at least in sections as a strip of adhesive running in a straight line and/or meandering manner.
  • the thermally activatable adhesive can be applied very quickly to the carrier or to the at least one projection.
  • An adhesive application device or an adhesive nozzle designed as a component of an adhesive application device does not need to be raised to apply the thermally activatable adhesive, but can remain in a close area of the carrier and apply the thermally activatable adhesive to the at least one projection.
  • embodiments of the ventilation insert according to the invention have also proven to be useful in which the adhesive or the thermally activatable adhesive is or is applied to the at least one projection at least in sections as a grid-shaped structure.
  • thermally activatable adhesive is applied to the at least one projection with low pressure or that the thermally activatable adhesive is or was applied to the at least one projection as part of an application process.
  • the adhesive or the thermally activatable adhesive may form at least one adhesive point on at least one projection.
  • Such embodiments have a relatively low requirement for thermally activatable adhesive in order to be able to fix the carrier together with the air-permeable ventilation layer to a vehicle seat or to a vehicle seat cushion.
  • the at least one projection has a thermally activatable adhesive which is applied at least in sections as an adhesive strip running in a straight line and/or meandering manner, wherein the at least one projection also has thermally activatable adhesive which forms at least one adhesive point on the at least one projection.
  • the at least one projection comprises a thermally activatable adhesive which is applied at least in sections as a straight and/or meandering adhesive strip, wherein it is also provided that the at least one projection comprises thermally activatable adhesive which forms a plurality of adhesive points on the at least one projection and is formed on the same side of the at least one projection, wherein the plurality of adhesive points are arranged along a row or along a straight line.
  • the row or the straight line along which the plurality of adhesive points are arranged can run parallel or perpendicular to adhesive strips which are formed on the same side of the at least one projection.
  • an adhesive strip and/or an adhesive dot has a minimum width of at least 3 mm.
  • Such embodiments sometimes offer various Advantages in the manufacture of the ventilation insert.
  • No spray mist is created when the thermally activatable adhesive is applied to the at least one projection with such dimensions.
  • the thermally activatable adhesive is therefore only located at a target position intended for the thermally activatable adhesive.
  • the application of such an adhesive strip or the application of such an adhesive point to the at least one projection can be carried out as part of an application process using an adhesive application device.
  • At least a portion of the thermally activatable adhesive may be water-soluble.
  • the thermally activated adhesive may have an activation temperature between 80 °C and 150 °C and in particular between 100 °C and 130 °C and preferably between 110 °C and 120 °C.
  • the invention further relates to a vehicle seat with at least one heating element according to at least one embodiment of the above description.
  • the at least one heating element is fixed to a cushion of a seat part and/or to a cushion of a backrest via the thermally activatable adhesive.
  • the at least one heating element can be embedded in a cushion of a seat part and/or in a cushion of a backrest, wherein it is also provided that the at least one heating element is fixed to the respective cushion in which the respective at least one heating element is embedded via the thermally activatable adhesive.
  • the invention relates to a vehicle seat with at least one ventilation insert according to at least one embodiment of the above description.
  • the air-permeable ventilation layer and the carrier are fixed to a cushion of a seat part and/or to a cushion of a backrest via the thermally activatable adhesive.
  • the invention also relates to a method for producing a heating element, in which a carrier is provided with at least one electrical heating conductor arranged on the carrier, whereupon adhesive that can be partially thermally activated is applied to individual areas of at least one side of the carrier via at least one adhesive nozzle.
  • adhesive that can be partially thermally activated is applied to individual areas of at least one side of the carrier via at least one adhesive nozzle.
  • the at least one Adhesive nozzle applies thermally activatable adhesive to at least one side of the carrier in regions such that the carrier, together with the at least one electrical heating conductor arranged on the carrier, can be fastened to a cushion of a vehicle seat via the applied thermally activatable adhesive.
  • the adhesive nozzle can be designed as a component of an adhesive application device. It is conceivable that the adhesive application device can move the adhesive nozzle along the carrier to apply the thermally activatable adhesive. Alternatively or in addition to this, the adhesive application device can be designed to raise and lower the adhesive nozzle. It can therefore be the case that the adhesive application device raises and lowers the adhesive nozzle to apply the thermally activatable adhesive to at least one side of the flat carrier.
  • the method may be a method for producing a heating element according to one of the embodiments described above.
  • the carrier is cut to size.
  • the cutting can be done using a separating device.
  • the carrier is cut from a web of carrier material and is separated from the web of carrier material by cutting.
  • electrical heating conductors that are intended for different heating elements can be arranged on the web of carrier material.
  • the electrical heating conductors intended for a respective carrier can be separated from the web of carrier material together with the respective carrier by cutting.
  • the carrier or the web of carrier material is arranged on a transport and fastening device before cutting and before the thermally activatable adhesive is applied and remains arranged there until the carrier has been cut to size and until the thermally activatable adhesive has been partially applied to at least one side of the respective carrier.
  • the transport and fastening device can comprise a circulating conveyor belt. It can thus be the case that the web with carrier material or that the carrier is arranged on the circulating conveyor belt until the carrier has been completely cut to size and until the partial application of the at least one thermally activatable adhesive to at least one side of the respective carrier has been carried out.
  • a defined static friction can be formed between the circulating conveyor belt and the carrier, wherein the carrier is fixed or fastened to the transport and fastening device exclusively via the static friction formed between the carrier and the circulating conveyor belt.
  • the thermally activatable adhesive may be applied to at least one side of the carrier via the at least one adhesive nozzle as an adhesive strip that runs in a straight line and/or meandering manner and/or the thermally activatable adhesive may be applied to at least one side of the carrier as at least one adhesive dot.
  • Embodiments have also proven useful in which the at least one adhesive nozzle dispenses the thermally activatable adhesive in operative connection with at least one piezo element.
  • the at least one adhesive nozzle may dispense the thermally activatable adhesive using compressed air.
  • a portion of the thermally activatable adhesive still absorbed by the adhesive nozzle may be subjected to negative pressure, thereby preventing the portion of the thermally activatable adhesive still absorbed by the adhesive nozzle from escaping from the adhesive nozzle.
  • a compressed air source can be provided, with the at least one adhesive nozzle releasing the thermally activatable adhesive under pressure with the aid of the compressed air source.
  • the negative pressure described above can possibly be created when the compressed air supply provided to the adhesive nozzle via the compressed air source is removed.
  • the negative pressure mentioned can thereby be established in the area of an opening of the adhesive nozzle, which prevents the portion of the thermally activatable adhesive still absorbed by the adhesive nozzle from escaping from the adhesive nozzle.
  • the thermally activatable adhesive is at least approximately at room temperature and is in the liquid phase or in a liquid state when the thermally activatable adhesive is applied to at least one side of the carrier via the adhesive nozzle.
  • the thermally activatable adhesive already applied to at least one side of the carrier can be heated to its activation temperature.
  • the thermally activatable adhesive already applied to at least one side of the carrier may at least partially or even completely harden before the thermally activatable adhesive already applied to at least one side of the carrier is brought to its activation temperature by heating.
  • a drying device may be provided, via which the thermally activatable adhesive already applied to at least one side of the carrier is acted upon before the thermally activatable adhesive already applied to at least one side of the carrier is brought to its activation temperature by heating.
  • Such embodiments have numerous advantages with regard to the manufacture or production of a vehicle seat which comprises such a heating element.
  • the heating element can be transported together with the already applied thermally activatable adhesive to an assembly location at which the heating element is to be connected to a vehicle seat.
  • the thermally activatable adhesive already applied to at least one side of the carrier can be heated to its activation temperature and the heating element can then be attached to the vehicle seat via the adhesive which has been heated to its activation temperature.
  • a spacer can be attached to the carrier, which partially, predominantly or at least almost completely covers the at least one electrical heating conductor.
  • the thermally activated adhesive can be applied to the flat carrier as at least one adhesive strip, so that the at least one adhesive strip runs uninterrupted or as at least one closed path around the spacer. This makes it easy to produce a heating element that also provides a seal via the at least one adhesive strip.
  • the spacer may be attached to the carrier by welding the spacer to the carrier.
  • the thermally activatable adhesive can be applied to the flat carrier as at least one adhesive strip in such a way that the at least one adhesive strip runs at a constant distance from the spacer and without interruption or as at least one closed path around the spacer.
  • the thermally activatable adhesive is applied to the flat carrier as exactly two or at least two adhesive strips have also proven to be successful, so that the at least two or exactly two adhesive strips each run uninterruptedly or each as a closed path and in particular also parallel around the spacer.
  • the invention also relates to a device for producing a heating element.
  • the device can be designed to carry out the previously described embodiments of the method according to the invention.
  • the device can also be designed to produce a heating element which is one of the previously described embodiments.
  • the device comprises an adhesive application device and a transport and fastening device.
  • a carrier can be moved into a working area of the adhesive application device via the transport and fastening device together with at least one electrical heating conductor arranged on the carrier.
  • the adhesive application device is configured and equipped in such a way that a thermally activatable adhesive can be partially applied to at least one side of the respective carrier moved into its working area via the adhesive application device.
  • the adhesive application device can be configured and equipped in such a way that a thermally activatable adhesive can be partially applied to at least one side of the respective carrier moved into its working area via the adhesive application device in such a way that the carrier can be held in a predetermined installation position of a vehicle seat via the applied thermally activatable adhesive.
  • the device can comprise a control and/or regulating device on which information is stored on areas to which the thermally activatable adhesive is to be applied to the respective carrier via the adhesive application device.
  • the adhesive application device can be controlled via the control and/or regulating device for applying the thermally activatable adhesive to the at least one side of the respective carrier or, in various embodiments, can also be regulated in addition thereto.
  • the information on areas to which the thermally activatable adhesive is to be applied to the at least one side of the carrier can, if necessary, be created as a file using a CAD program, wherein the control and/or regulating device is designed in such a way that it can Can read out information about areas where the thermally activated adhesive is to be applied to at least one side of the carrier.
  • the adhesive application device can comprise at least one adhesive nozzle and at least one piezo element, wherein the at least one adhesive nozzle interacts with the at least one piezo element to dispense thermally activatable adhesive.
  • Such embodiments have proven to be useful in order to be able to dispense thermally activatable adhesive very precisely in defined quantities and to prevent clumping or unwanted hardening of thermally activatable adhesive that may still be adhering to the adhesive nozzle.
  • the device may also comprise a compressed air source with which the adhesive application device interacts for the compressed air delivery of the thermally activatable adhesive.
  • the device may comprise a drying device for the thermally activatable adhesive partially applied to at least one side of the carrier.
  • the device can comprise a separating device for cutting the carrier to size or for separating the carrier from a web of carrier material.
  • the transport and fastening device can extend through a working area of the adhesive application device and through a working area of the separating device.
  • the transport and fastening device can thus be designed to move the carrier together with the at least one electrical heating conductor arranged on the carrier into the working area of the adhesive application device and into a working area of the separating device.
  • the transport and fastening device for moving the carrier can comprise a rotating conveyor belt that extends through the working area of the adhesive application device and through the working area of the separating device.
  • the working area of the adhesive application device and the working area of the separating device can at least partially overlap or even be identical.
  • a high static friction should preferably be formed between a surface of the conveyor belt and the carrier, so that this high static friction can already be sufficient to fix the carrier to the transport and fastening device or to fasten the carrier to the conveyor belt of the transport and fastening device.
  • the adhesive application device can be configured and equipped in such a way that a thermally activatable adhesive can be applied as an adhesive strip, which runs in a straight line and/or meandering, to at least one side of the respective carrier moved into its working area via the adhesive application device.
  • the adhesive application device can be configured and equipped in such a way that the thermally activatable adhesive can be applied as at least one adhesive dot to at least one side of the respective carrier moved into its working area via the adhesive application device.
  • Embodiments have proven useful in which the thermally activatable adhesive can be applied to at least one side of the carrier via the adhesive application device as an adhesive strip and/or as at least one adhesive dot in such a way that a minimum width or a minimum diameter of the adhesive strip or the adhesive dot is at least 3 mm.
  • the adhesive application device can be configured and equipped to apply such a thermally activatable adhesive to at least one side of the respective carrier moved into its working area, the activation temperature of which is between 80 °C and 130 °C and in particular between 100 °C and 130 °C and preferably between 110 °C and 120 °C.
  • the invention also relates to a device for producing a ventilation insert.
  • the device comprises an adhesive application device and a transport and fastening device.
  • An air-permeable ventilation layer and a carrier can be moved into a working area of the adhesive application device via the transport and fastening device, the air-permeable ventilation layer and the carrier lying on top of one another and the carrier extending beyond the air-permeable ventilation layer at the edge, forming at least one projection.
  • the adhesive application device is configured and equipped in such a way that a thermally activatable adhesive can be applied to the at least one projection at least in sections via the adhesive application device.
  • the device for producing a ventilation insert can be designed to produce such a ventilation insert, which is one of the embodiments already described above.
  • the adhesive application device can be configured and equipped in such a way that a thermally activated adhesive can be applied via the adhesive application device in such a way at least partially applicable to the at least one projection, such that the carrier together with the ventilation layer can be held at a predetermined installation position of a vehicle seat via the thermally activatable adhesive applied at least partially to the at least one projection.
  • the device for producing a ventilation insert can comprise a control and/or regulating device on which information is stored on areas to which the thermally activatable adhesive is to be applied to the at least one projection via the adhesive application device.
  • the adhesive application device can be controlled via the control and/or regulating device for applying the thermally activatable adhesive to the at least one projection or, in various embodiments, can also be regulated in addition thereto.
  • the information on areas to which the thermally activatable adhesive is to be applied to the at least one projection can, if necessary, be created as a file using a CAD program, wherein the control and/or regulating device is designed in such a way that it can read information on areas to which the thermally activatable adhesive is to be applied to the at least one projection from a file created in this way.
  • the adhesive application device of the device for producing a ventilation insert can comprise at least one adhesive nozzle and at least one piezo element, wherein the at least one adhesive nozzle interacts with the at least one piezo element to dispense thermally activatable adhesive.
  • Such embodiments have proven to be useful in order to be able to dispense thermally activatable adhesive very precisely in defined quantities and to prevent clumping or unwanted hardening of thermally activatable adhesive that may still be adhering to the adhesive nozzle.
  • the device for producing a ventilation insert may comprise a compressed air source with which the adhesive application device cooperates for the compressed air-loaded dispensing of the thermally activatable adhesive.
  • the device for producing a ventilation insert may comprise a drying device for the thermally activatable adhesive applied to the at least one projection.
  • the adhesive application device can be configured and equipped in such a way that a thermally activatable adhesive is applied as an adhesive strip, which runs in a straight line and/or meandering, to the at least a projection.
  • the adhesive application device can be configured and equipped such that the thermally activatable adhesive can be applied as at least one adhesive point to the at least one projection via the adhesive application device.
  • Embodiments have also proven useful in the device for producing a ventilation insert in which the thermally activatable adhesive can be applied to the at least one projection as an adhesive strip and/or as at least one adhesive dot via the adhesive application device in such a way that a minimum width or a minimum diameter of the adhesive strip or the adhesive dot is at least 3 mm.
  • the adhesive application device can be configured and equipped to apply such a thermally activatable adhesive to the at least one projection, the activation temperature of which is between 80 °C and 130 °C and in particular between 100 °C and 130 °C and preferably between 110 °C and 120 °C.
  • the invention further relates to a method for producing a ventilation insert, in which an air-permeable ventilation layer and a carrier are provided, which carrier is impermeable to air, the air-permeable ventilation layer and the carrier lying on top of one another and the carrier extending beyond the air-permeable ventilation layer at the edge, forming at least one projection.
  • thermally activatable adhesive is applied to the at least one projection via at least one adhesive nozzle.
  • thermally activatable adhesive is applied to the at least one projection via the at least one adhesive nozzle in such a way that the carrier can be attached together with the air-permeable ventilation layer to a cushion of a vehicle seat via the applied thermally activatable adhesive.
  • the adhesive nozzle can also be designed as a component of an adhesive application device. It is conceivable that the adhesive application device can move the adhesive nozzle to apply the thermally activatable adhesive along the carrier and the at least one projection. Alternatively or in addition to this, the adhesive application device can for raising and lowering the adhesive nozzle. Thus, the adhesive application device can raise and lower the adhesive nozzle for applying the thermally activatable adhesive to the at least one projection.
  • the method can be a method for producing an embodiment of a ventilation insert, as has already been described above.
  • the thermally activatable adhesive may be applied to the at least one projection via the at least one adhesive nozzle as an adhesive strip that runs in a straight line and/or meandering manner and/or the thermally activatable adhesive may be applied to the at least one projection as at least one adhesive dot.
  • the at least one adhesive nozzle dispenses the thermally activatable adhesive in operative connection with at least one piezo element.
  • the at least one adhesive nozzle can dispense the thermally activatable adhesive using compressed air.
  • a portion of the thermally activatable adhesive still absorbed by the adhesive nozzle can be subjected to negative pressure, which prevents the portion of the thermally activatable adhesive still absorbed by the adhesive nozzle from escaping from the adhesive nozzle.
  • a compressed air source can be provided in the method for producing a ventilation insert, with the at least one adhesive nozzle releasing the thermally activatable adhesive under pressure with the aid of the compressed air source.
  • the negative pressure described above can possibly be created when the compressed air supply provided to the adhesive nozzle via the compressed air source is removed.
  • the negative pressure mentioned can thereby be established in the area of an opening of the adhesive nozzle, which prevents the portion of the thermally activatable adhesive still absorbed by the adhesive nozzle from escaping from the adhesive nozzle.
  • embodiments have also proven successful in the process for producing a ventilation insert in which the thermally activated adhesive is at least approximately at room temperature and is in the liquid phase or in is in a liquid state when the thermally activatable adhesive is applied to the at least one protrusion via the adhesive nozzle.
  • the thermally activatable adhesive already applied to the at least one protrusion can then be heated to its activation temperature.
  • the thermally activatable adhesive already applied to the at least one protrusion can at least partially or even completely harden before the thermally activatable adhesive already applied to the at least one protrusion is heated to its activation temperature.
  • a drying device can be provided, via which the thermally activatable adhesive already applied to the at least one protrusion is acted upon before the thermally activatable adhesive already applied to the at least one protrusion is heated to its activation temperature.
  • such embodiments have numerous advantages with regard to the manufacture or production of a vehicle seat which comprises such a ventilation insert.
  • the ventilation insert can be transported with the thermally activatable adhesive already applied to it to an assembly location at which the ventilation insert is to be connected to a vehicle seat.
  • the thermally activatable adhesive already applied to the at least one projection can be heated to its activation temperature and the ventilation insert can then be secured to the vehicle seat using the adhesive which has been heated to its activation temperature.
  • Figure 1 shows a schematic view of an embodiment of a heating element according to the invention
  • Figure 2 shows a schematic view of another embodiment of a heating element according to the invention.
  • Figure 3 shows an embodiment of a heating element during the application of a thermally activatable adhesive via an adhesive application device, as described in Component can be provided in various embodiments of a device according to the invention
  • FIG. 4 show schematic views of further embodiments of heating elements according to the invention.
  • Figure 5 shows a sectional view through a heating element 5 according to Figure 4.
  • Figure 6 shows a schematic view of an embodiment of a ventilation insert according to the invention
  • Figure 7 shows a flow chart of individual steps of an embodiment of a method according to the invention.
  • the heating element shown in Figure 1 with reference to number 5 is such a heating element that is intended for installation in the area of a seat surface of a vehicle seat in order to heat the vehicle seat when required or at the request of a to heat the person sitting on the vehicle seat.
  • a heating element 5 can be embedded in a cushion of the vehicle seat and can give off heat to the cushion if a user of a control and/or regulating device of a vehicle gives a corresponding instruction that heating of the vehicle seat is desired.
  • the heating element 5 is divided into three areas, which are referred to with numbers 10, 20 and 30. After the heating element 5 has been installed in a vehicle seat or when the heating element 5 is in a predetermined installation position of a vehicle seat, the seat cheeks of the vehicle seat are heated via areas 10 and 30 and a seat surface on which a person can sit is heated via area 20.
  • the heating element 5 comprises an electrical heating conductor 7 for emitting heat, which extends both over areas 10 and 30, which heat the seat cheeks of the vehicle seat, and over area 20, which is intended for heating a seat surface.
  • the electrical heating conductor 7 forms an electrical heating resistor and can thereby be brought to a predetermined temperature when electrical voltage is applied to the electrical heating conductor 7.
  • the electrical heating conductor 7 has a different course in area 20 than in areas 10 and 30.
  • area 20 the electrical heating conductor 20 is laid in a meandering manner; in the area of a respective transition between area 20 and areas 20 and 30, the electrical heating conductor 7 runs partially in a straight line, whereas in areas 10 and 30 the heating conductor 7 runs predominantly in a curve.
  • the course of the electrical heating conductor 7 is selected such that the electrical heating conductor 7 is laid with a relatively larger proportion in those areas in which a greater release of heat is desired. In the present case, this is the case in area 20, which is located in the vicinity of a seat.
  • the heating element 5 comprises a carrier 9 or a flat Carrier on which the electrical heating conductor 7 is located.
  • the carrier 9 can be designed, for example, as a fleece or knitted fabric.
  • the carrier 9 and the electrical heating conductor 7 are connected to one another, and in practice it has proven useful, for example, if the electrical heating conductor 7 is sewn onto the carrier 9 or woven into the carrier 9.
  • a thermally activatable adhesive 6 was applied to the carrier 9 by means of an adhesive application device 15 (see Figure 3).
  • the thermally activatable adhesive 6 has not yet been heated to its activation temperature.
  • the thermally activatable adhesive 6 is at least approximately room temperature and is in the liquid phase.
  • Figure 1 shows a heating element 5 that can be brought to an assembly location in this state in order to be fixed there in an installation position of a vehicle seat.
  • the thermally activatable adhesive 6 is heated at the installation location to at least its activation temperature, whereby the thermally activatable adhesive 6 becomes adhesive and is therefore suitable for connecting the carrier 9 to the upholstery of the vehicle seat.
  • a material-to-material connection of the carrier 9 to the upholstery of the vehicle seat can be provided in a very simple manner by appropriately heating the thermally activatable adhesive 6 at the installation location and arranging the carrier 9 together with the electrical heating conductor 7 at the installation position, in which installation position the thermally activatable adhesive is in contact with the upholstery and the carrier 9. The thermally activatable adhesive 6 can then cool down. The carrier 9 is then materially connected to the upholstery of the vehicle seat via the thermally activatable adhesive 6.
  • the heating element 5 can be fixed very easily and quickly in the specified installation position by the thermally activated adhesive 6.
  • the production of such a heating element 5 is uncomplicated and can be carried out quickly, since a thermally activated adhesive can be applied to a carrier 9 within a short time and in a simple manner.
  • Adhesive application device 15 see Figure 3 or a printing device for a thermally activated adhesive 6 is reliable and is characterized by an uncomplicated structure.
  • Figure 1 also shows that the thermally activatable adhesive 6 was applied to the carrier 9 in the form of an uninterrupted or almost uninterrupted adhesive strip 8.
  • the adhesive strip 8 extends in a meandering manner over the areas 10, 20 and 30 and is proportionally enlarged in places where a higher holding force is necessary for the secure attachment of the heating element 5.
  • Embodiments according to Figure 1, in which the thermally activatable adhesive 6 is applied to the carrier 9 exclusively as an adhesive strip 8, have proven to be useful in order to achieve the highest possible throughput or to keep the time for applying the thermally activatable adhesive 6 to the carrier 9 as short as possible.
  • An adhesive nozzle designed as a component of an adhesive application device 15 does not have to be raised in order to apply the thermally activatable adhesive 6 if the thermally activatable adhesive 6 is applied to the carrier 9 as an adhesive strip 8.
  • an adhesive application device 15 can be actuated or controlled via a control device S (see Figure 3), which then moves an adhesive nozzle along the carrier 9, which dispenses the thermally activatable adhesive 6 as an adhesive strip 8 during the movement.
  • the thermally activated adhesive 6 was applied to the carrier 9 in such a way that less than 20% of the broad side surface of the carrier 9, which can be seen in Figure 1, is covered by the thermally activated adhesive 6. This ensures that the heating element 5 is securely attached to an installation position of a vehicle seat using the thermally activated adhesive 6, while also maintaining a high level of air permeability of the carrier 9. In addition, the adhesive consumption is significantly reduced compared to full-surface wetting of the broad side surface shown in Figure 1.
  • the carrier 9 is separated from a web 90 of carrier material.
  • Several electrical heating conductors 7, which are intended for different heating elements 5, are already connected to this web 90 of carrier material.
  • the electrical heating conductors 7 intended for a respective heating element 5 are brought into a working area of the adhesive application device 15, whereupon the adhesive application device 15 applies thermally activatable adhesive 6 to defined Areas of the web 90, which defined areas are subsequently separated from the web 90 together with the carrier 9.
  • the application of the thermally activatable adhesive 6 for the respective heating element 5 can thus take place before the respective carrier 9 is separated from the web 90 of carrier material.
  • the carrier 9 can first be separated from the web 90 of carrier material, whereupon the adhesive application device 15 then applies the thermally activatable adhesive 6 to the already separated carrier 9.
  • the web 90 of carrier material is moved by means of a transport and fastening device both into the working area of the adhesive application device 15 and into the working area of a cutting and/or separating device which is designed to separate the carrier 9 from the web 90.
  • a transport and fastening device not shown in the figures of the present patent application, can have a rotating conveyor belt which runs both through the working area of the adhesive application device 15 and through the working area of the cutting and/or separating device. The entire production of the heating element 5 can thus take place without the carrier 9 having to be removed from a transport and fastening device in order to apply the thermally activatable adhesive 6.
  • a surface of a conveyor belt on which the web 90 of carrier material or the carrier 9 rests during the application of the thermally activatable adhesive 6 has such a nature that a high static friction is formed between the carrier 9 and the surface of the conveyor belt. Such a high static friction is sufficient in practice to fasten the web 90 when the carrier 9 is separated from the web 90 and the thermally activatable adhesive 6 is applied to the carrier 9.
  • the heating element 5 can thus be produced by separating the carrier 9 from the web 90 and applying the thermally activatable adhesive 6 by moving the web 90 or the already separated carrier 9 along a transport path without manual intervention being necessary in the meantime.
  • Figure 2 shows a schematic view of another embodiment of a heating element 5 according to the invention.
  • the heating element 5 is not yet completely manufactured in Figure 2, since the carrier 9 (see Figure 1 ) has not yet been separated from the web 90 of carrier material.
  • Figure 2 illustrates an alternative arrangement of the thermally activatable adhesive 6.
  • the thermally activatable adhesive 6 is thus further applied to the web 90 of carrier material by means of a plurality of adhesive strips 8 running parallel to one another.
  • Figure 2 provides that the thermally activatable adhesive 6 has been applied to the web 90 of carrier material by means of a plurality of adhesive dots 12. A plurality of these adhesive dots 12 extend along a straight line that runs parallel to the adhesive strips 8.
  • an adhesive nozzle designed as a component of the adhesive application device 15 (cf. Figure 3) is lowered in the vertical direction, whereupon the adhesive nozzle applies an adhesive dot 12 to the web 90 of carrier material.
  • the adhesive nozzle is then raised in the vertical direction and brought into a position in which the adhesive nozzle, after being lowered vertically again, applies a further adhesive dot 12 to the web 90 of carrier material.
  • the application of adhesive dots 12 therefore requires more time than the application of adhesive strips 8.
  • the application of adhesive dots 12 instead of adhesive strips 8 requires a relatively lower amount of thermally activatable adhesive 6.
  • Embodiments in which the thermally activatable adhesive 6 is applied to a carrier 9 both by adhesive strips 8 and by adhesive dots 12 therefore form a sensible compromise in order to be able to apply thermally activatable adhesive 6 to a carrier 9 in a time-optimized manner, whereby the need for thermally activatable adhesive 6 can still be reduced compared to the embodiment according to Figure 1.
  • Figure 3 shows an embodiment of a heating element 5 during the application of a thermally activatable adhesive 6 via an adhesive application device 15, as can be provided as a component in various embodiments of a device according to the invention.
  • Thermally activatable adhesive 6 can also be applied to a projection 54 of a ventilation insert 50 via such an adhesive application device 15, as is shown and described by way of example in Figure 6.
  • the adhesive application device 15 of the embodiment according to Figure 3 is therefore suitable for applying thermally activatable adhesive 6 to at least one side of a respective carrier 9 which is moved in its working area and which is designed as a component of an embodiment of a heating element 5 according to the invention.
  • the adhesive application device 15 of the embodiment according to Figure 3 is suitable for applying thermally activatable adhesive to at least one Overhang 54, which is part of an embodiment of a ventilation insert 50 according to the invention.
  • the heating element 5 (see Figure 1) is not yet completely finished in Figure 3, since the application of the thermally activatable adhesive 6 has not yet been completed in the illustration according to Figure 3 and the carrier 9 (see Figure 1) has not yet been separated from the web 90.
  • the thermally activatable adhesive 6 is applied exclusively by means of adhesive dots 12 to the web 90 of carrier material.
  • the web 90 of carrier material lies on a conveyor belt, which moves the web 90 of carrier material into the working area of the adhesive application device 15. It may be that the conveyor belt is briefly stopped so that the web 90 of carrier material stands still when the adhesive application device 15 applies the thermally activatable adhesive 6 to the web 90 of carrier material. In further embodiments, however, it may also be that the web 90 of carrier material is moved during the application of the thermally activatable adhesive 6.
  • the control device S can know a transport speed of the conveyor belt so that the adhesive application device 15 is controlled via the control device S for the defined application of the adhesive points 12, wherein the control device S takes a transport speed of the conveyor belt into account.
  • An adhesive nozzle of the adhesive application device 15 is operatively connected to a piezo element in order to dispense thermally activated adhesive 6 via the adhesive nozzle. This can prevent thermally activated adhesive 6 that has already escaped from the adhesive nozzle from sticking to the adhesive nozzle and unintentionally hardening partially or even completely.
  • FIGs 4a and 4b show further embodiments of a heating element 5 according to the invention.
  • the heating elements 5 of the embodiments according to Figures 4a and 4b each comprise a spacer 40 which completely covers at least one electrical heating conductor 7 applied to the carrier 9 (see Figures 1 to 3). For this reason, the electrical heating conductors 7 cannot be seen in Figures 4a and 4b.
  • the carrier 9 is designed as a fleece in the embodiments according to Figures 4a and 4b, but can also be made of other materials, such as a plastic film or the like.
  • the thermally activatable adhesive 6 is also applied to the carrier 9 by two adhesive strips 8 running parallel to one another, which each run as a closed path around the spacer 40 at a defined and at least approximately constant distance.
  • the thermally activatable adhesive 6 or the adhesive strips 8 have not yet been heated to their activation temperature. If the heating element 5 is attached to a vehicle seat at a later point in time, the thermally activatable adhesive 6 is heated at the installation location at least to its activation temperature, whereby the thermally activatable adhesive 6 becomes adhesive and is therefore suitable for connecting the carrier 9 to the upholstery of the vehicle seat.
  • the thermally activatable adhesive 6 in which the thermally activatable adhesive 6 is applied to the carrier 9 by two adhesive strips 8 running parallel to one another, each of which runs as a closed path around the spacer 40, the thermally activatable adhesive 6 can also form a seal when the heating element 5 is arranged on the respective upholstery of the vehicle seat.
  • Figure 5 shows a sectional view through a heating element 5 according to Figure 4a or Figure 4b. The heating element 5 is only partially shown in Figure 5.
  • Figure 5 makes it clear that the spacer 40 has a greater range than the adhesive strips 8 starting from the carrier 9.
  • the two adhesive strips 8 run parallel to one another and form a seal when the heating element 5 is firmly attached to the upholstery of a vehicle seat via the adhesive strips 8.
  • exactly one adhesive strip 8 may be sufficient to form a seal, which is guided as a closed path around the spacer 40 and via which exactly one adhesive strip 8 the heating element 5 is arranged in a material-locking manner on an upholstery of a vehicle seat. More than two such adhesive strips 8 may also be provided, which together provide a seal and fix the heating element 5 in a material-locking manner on an upholstery of a vehicle seat.
  • FIG 6 shows a schematic view of an embodiment of a ventilation insert 50 according to the invention.
  • the ventilation insert 50 comprises an air-permeable ventilation layer 52 and a flat carrier 9 which is designed to be air-impermeable.
  • the air-permeable ventilation layer 52 and the flat carrier 9 lie on top of each other and are fixed to each other.
  • the flat carrier 9 extends beyond the air-permeable ventilation layer 52 at the edge and thereby forms a projection 54.
  • the ventilation insert 50 has a thermally activatable adhesive 6, which in the present case is formed by a plurality of adhesive strips 8.
  • the formation by adhesive strips 8 is to be understood here merely as an example, so that the thermally activatable adhesive 6 can also be formed by adhesive dots 12, as previously shown and described in Figure 2.
  • FIG. 7 shows a flow chart of individual steps of an embodiment of a method 100 according to the invention.
  • a web 90 of carrier material is provided to an adhesive application device 15, wherein an electrical heating conductor 7 provided for a heating element 5 is already connected to the web 90.
  • step 120 the adhesive application device 15 applies thermally activated adhesive 6 to the web 90 of carrier material in the immediate vicinity of the electrical heating conductor 7.
  • a carrier 9 is separated from the web 90 together with the thermally activatable adhesive 6 applied to the web 90 and the electrical heating conductor 7 already connected to the web 90.
  • the thermally activatable adhesive 6 is heated to its activation temperature, whereby the thermally activatable adhesive 6 becomes adhesive or adherent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne un élément chauffant (5) comportant un support (9) et au moins un conducteur chauffant (7) électrique disposé sur le support (9). Au moins un côté du support (9) comporte, au moins par endroits, une substance adhésive (6) activable thermiquement.
PCT/DE2023/000120 2022-10-13 2023-09-29 Élément chauffant ainsi que procédé et dispositif de production d'un élément chauffant WO2024078652A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102022003780.7 2022-10-13
DE102022003780 2022-10-13
DE102022004811.6A DE102022004811A1 (de) 2022-10-13 2022-12-19 Heizelement sowie Verfahren und Vorrichtung zum Herstellen eines Heizelementes
DE102022004811.6 2022-12-19

Publications (1)

Publication Number Publication Date
WO2024078652A1 true WO2024078652A1 (fr) 2024-04-18

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PCT/DE2023/000120 WO2024078652A1 (fr) 2022-10-13 2023-09-29 Élément chauffant ainsi que procédé et dispositif de production d'un élément chauffant

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WO (1) WO2024078652A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126188A1 (de) * 1991-08-07 1993-02-11 Ruthenberg Gmbh Waermetechnik Verfahren zum anbringen eines heizelements zwischen einem ober- und einem untermaterial
WO1999021694A1 (fr) * 1997-10-28 1999-05-06 Lear Corporation Procede de fabrication d'un article au moyen d'un materiau electriquement conducteur
DE29912302U1 (de) * 1999-07-20 2001-01-04 Wet Automotive Systems Ag Heizeinrichtung für Fahrzeugsitze
DE19933377A1 (de) * 1999-07-20 2001-02-01 Wet Automotive Systems Ag Heizeinrichtung für Fahrzeugsitze
EP1049355B1 (fr) * 1999-04-30 2001-11-07 Johnson Controls - Roth Procédé de réalisation de coussin de siège comportant une nappe chauffante
US6792671B1 (en) * 1999-09-16 2004-09-21 Kongsberg Automotive Ab Method for manufacturing and application of heating element for heating in a vehicle
DE102005037829A1 (de) * 2005-03-02 2006-09-14 W.E.T. Automotive Systems Ag Elektrisches Heizelement
EP1758734B1 (fr) * 2004-06-18 2019-01-09 Textronics, Inc. Structures textiles destinees a chauffer ou a rechauffer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126188A1 (de) * 1991-08-07 1993-02-11 Ruthenberg Gmbh Waermetechnik Verfahren zum anbringen eines heizelements zwischen einem ober- und einem untermaterial
WO1999021694A1 (fr) * 1997-10-28 1999-05-06 Lear Corporation Procede de fabrication d'un article au moyen d'un materiau electriquement conducteur
EP1049355B1 (fr) * 1999-04-30 2001-11-07 Johnson Controls - Roth Procédé de réalisation de coussin de siège comportant une nappe chauffante
DE29912302U1 (de) * 1999-07-20 2001-01-04 Wet Automotive Systems Ag Heizeinrichtung für Fahrzeugsitze
DE19933377A1 (de) * 1999-07-20 2001-02-01 Wet Automotive Systems Ag Heizeinrichtung für Fahrzeugsitze
US6792671B1 (en) * 1999-09-16 2004-09-21 Kongsberg Automotive Ab Method for manufacturing and application of heating element for heating in a vehicle
DE60012550T2 (de) * 1999-09-16 2005-09-15 Kongsberg Automotive Ab Verfahren zur herstellung und anwendung eines heizelementes für fahrzeuge
EP1758734B1 (fr) * 2004-06-18 2019-01-09 Textronics, Inc. Structures textiles destinees a chauffer ou a rechauffer
DE102005037829A1 (de) * 2005-03-02 2006-09-14 W.E.T. Automotive Systems Ag Elektrisches Heizelement

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