EP3969300A1 - Structure chauffante pour vehicule automobile - Google Patents
Structure chauffante pour vehicule automobileInfo
- Publication number
- EP3969300A1 EP3969300A1 EP20723449.3A EP20723449A EP3969300A1 EP 3969300 A1 EP3969300 A1 EP 3969300A1 EP 20723449 A EP20723449 A EP 20723449A EP 3969300 A1 EP3969300 A1 EP 3969300A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrodes
- contact
- resistive layer
- heating structure
- contact 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00295—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for trim components, e.g. panels, dashboards, liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2225—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2226—Electric heaters using radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2227—Electric heaters incorporated in vehicle trim components, e.g. panels or linings
-
- 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
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
- H05B3/267—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an organic material, e.g. plastic
-
- 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
- H05B2203/013—Heaters using resistive films or coatings
Definitions
- the present invention relates to a heating structure intended in particular to be installed inside a vehicle cabin, this structure being in particular a radiant panel.
- a radiant panel comprises a plurality of electrodes
- a radiant panel is a device generally comprising a circuit
- the conductive coating can be, for example, a paint layer comprising carbon particles and / or metal particles.
- a problem raised today is the difficulty of obtaining heating
- the object of the present invention is to provide improved radiant panels.
- the present invention thus a heating structure intended in particular to be installed inside a passenger compartment of a vehicle, this heating structure being in particular a radiant panel, the heating structure comprising at least one resistive layer arranged to produce a thermal release when this layer is traversed by an electric current, this structure further comprising an array of electrodes comprising a plurality of contact electrodes arranged to be in electrical contact with the resistive layer to pass electric current through this resistive layer , some at least of these contact electrodes being arranged with an inter-distance between successive electrodes which is variable.
- resistive coating or resistive layer in particular of the same conductivity, with the same thickness. This helps to keep the heating structure manufacturing process simple.
- the contact electrodes are, at least for some of them, in particular for all the contact electrodes of the electrode array, parallel to each other.
- the array of electrodes comprises distribution electrodes arranged to conduct electric current from an electric source to the contact electrodes, several contact electrodes being connected to the same one. distribution electrode.
- distribution is rectilinear over at least part of its length, and the contact electrodes which are associated with this distribution electrode connecting, for example perpendicularly, to this distribution electrode.
- the distribution electrodes can have different shapes, in particular curved with rounded shapes.
- the distribution electrodes may or may not be parallel to each other.
- the array of electrodes comprises at least
- At least two distribution electrodes which are parallel to each other over at least part of their length, and their associated contact electrodes are arranged between these two distribution electrodes and are alternated with an inter-distance which decreases in line with the decrease in the voltage present between the pairs of electrodes so as to maintain substantially uniform the electrical power between the pairs of contact electrodes.
- the contact electrodes arranged between two distribution electrodes, these contact electrodes forming part of the same group of contact electrodes have only two inter- distance, or at least three or more inter-distance values.
- the resistive layer is a layer
- this resistive layer deposited on a substrate, in particular by screen printing, this resistive layer extending in particular between the two distribution electrodes associated with the group of contact electrodes.
- the resistive layer comprises
- the electrodes are made of
- the electrodes are metallic adhesive tapes, for example copper. If necessary, these electrodes could possibly be produced by depositing a material on the substrate
- the resistive layer associated with the group of contact electrodes is a continuous layer, or in a variant comprises a plurality of discrete resistive elements forming this layer.
- the contact electrodes of the same group have the same length.
- the heating structure includes a substrate which carries the resistive layer and the electrodes.
- the substrate is preferably less than 1 cm thick, for an area of at least several cm2.
- the heating structure is in particular in the form of a layer (s).
- the invention also relates to a vehicle interior component
- a component to be integrated into a vehicle door or in particular parts of the dashboard, cellar lining, roof, armrest, comprising a heating structure, in particular a radiant panel, such as above.
- the passenger compartment component which comprises the heating structure for example the radiant panel
- the heating structure is arranged to heat by thermal radiation (radiant panel) or by thermal conduction or thermal contact (contact heating structure), and not by convection heating, for example by heat transported by moving air.
- the heating structure is not crossed by any air flow intended to cool or heat the passenger compartment.
- the panel is disconnected from the air movement system.
- the heating structure and the HAVC of the vehicle can, if desired, be controlled in a coordinated manner.
- the component forms for example an element of a glove box or a
- the invention also relates to a heating structure having a resistive layer and electrodes for heating this layer, this structure being configured to be integrated into a passenger compartment component which comprises a decoration visible from the inside of the vehicle. passenger compartment, this decoration being for example a covering of the passenger compartment, such as for example a fabric, a leather or an aesthetic covering.
- a heating structure intended in particular to be installed inside a passenger compartment of a vehicle, this structure being in particular a radiant panel, the heating structure
- this structure further comprising a network of electrodes
- the resistive layer comprising a plurality of contact electrodes arranged to be in electrical contact with the resistive layer in order to pass electrical current through this resistive layer, at least some of these contact electrodes being in particular arranged with an inter-distance (Di) between electrodes successive which is variable, the resistive layer being arranged with a greater thickness than the thickness of at least some of the contact electrodes, in particular of all the contact electrodes, so that the resistive layer at least partially covers these contact electrodes .
- DI inter-distance
- the invention allows an improved junction between the contact electrodes and the resistive layer.
- the invention makes it possible to optimize the shape of the contact between the conductive contact electrodes and the resistive layer of a radiant panel.
- the invention avoids irregularities in the contact which could lead to local lack of electrical contact.
- the contact electrodes are formed on a substrate and the thickness of these contact electrodes is measured in a direction locally perpendicular to this substrate, and the thickness of the layer resistive is also measured in a direction locally perpendicular to the substrate.
- the contact electrodes each comprise a face opposite the substrate and the resistive layer covers at least partially, in particular completely, this face opposite the substrate.
- the thickness of the resistive layer which covers the contact electrode is between 20% of the thickness of the contact electrode and 100% or 50% of the thickness of this contact electrode.
- the local thickness of the resistive layer which covers the contact electrode is 8 micrometers for an electrode thickness of 40 micrometers.
- the resistive layer has in the contact zone with this electrode a shape which matches at least two perpendicular sides of the rectangular periphery.
- the resistive layer locally has a wedge shape, with a right angle.
- the heating structure has a distribution electrode which also forms a contact electrode.
- the resistive layer covers only a part of this distribution electrode, and not the entire upper side of this distribution electrode.
- the resistive layer can be in contact with only one edge of this electrode, and not in contact with two longitudinal edges of this electrode.
- Figure 1 is a schematic representation of an example of
- Figure 2 is a schematic representation of components
- FIG. 3 is a schematic representation of a cross section of the radiant panel of the invention.
- Figure 1 shows radiant panel 1, forming a heating structure within the meaning of the invention, arranged to be installed inside a passenger compartment 3 of a vehicle.
- the radiant panel 1 comprises a resistive layer 4 arranged to
- the resistive layer 4 is for example an acrylic paint loaded with
- the conductive filler is, for example, in the form of carbon and graphite flakes.
- This panel 1 further comprises an array of electrodes 5 comprising a plurality of contact electrodes 6 arranged to be in electrical contact with the resistive layer 4 to pass electric current through this resistive layer 4.
- inter-distance which is variable.
- the network of electrodes 5 comprises distribution electrodes 8 arranged to conduct electric current, one of these electrodes 8 being connected to an electric source 9, for example of positive electric polarity, to the contact electrodes 6
- the other distribution electrode 8 is connected to the other polarity, being for example connected to a ground.
- the electric current thus passes through a distribution electrode 8, which distributes it in the contact electrodes 6.
- the current then circulates in the resistive layer 4 before being collected by the contact electrodes 6 connected to the other. distribution electrode 8.
- the distribution electrodes 8 are rectilinear over part of its length, or even their entire length, and the contact electrodes 6 which are associated with these distribution electrodes 8 are connected perpendicularly to this associated distribution electrode 8.
- the array of electrodes 5 comprises two distribution electrodes 8 which are parallel to one another, and their associated contact electrodes 6 are arranged between these two distribution electrodes 8 and are alternated with an inter-distance D1, D2. Di which decreases in connection with the decrease in the voltage U1, U2 ... Ui present between the pairs of electrodes 6 so as to maintain substantially uniform the electric power between the pairs of contact electrodes.
- these contact electrodes forming part of the same group 14 of contact electrodes, has a plurality of inter-distance values D1, D2 ... Di.
- D1> D2> D3> D4 we have D1> U2> U3> U4 for the voltages between the electrodes 6.
- the resistive layer 4 is a layer deposited on a substrate 16, in particular by screen printing, this resistive layer 4 extending in particular between the two distribution electrodes 8 associated with the group of contact electrodes.
- the electrodes 6 and 8 are made of a conductive material, in particular metallic, such as ink loaded with conductive particles, in particular silver or copper particles.
- the resistive layer 4 associated with the group of contact electrodes is a substantially rectangular continuous layer.
- Other forms are of course possible.
- the electrodes 6 can be of different length.
- a passenger compartment component 19 of a motor vehicle in particular a component to be integrated into a vehicle door, is provided with a radiant panel 1. Several components can be seen in the passenger compartment.
- Component 19 may include a decorative layer applied to the radiant panel.
- the decorative layer may for example be impermeable to air, for example being leather.
- the distribution electrodes 8 can, if desired, have more complex shapes, for example with one or more rounded elbows connecting rectilinear portions.
- the substrate can be a sheet or a canvas for example.
- the contact electrodes 6 and their associated distribution electrodes 8 are arranged in the manner of nested combs.
- the heated structure is used in a passenger compartment component, being a passenger armrest, this structure being able to heat a passenger's arm by thermal contact.
- Figure 3 shows a section in the direction of the thickness of the radiant panel 1 described above.
- the resistive layer 4 is arranged with a greater thickness, at least locally, than the thickness of the contact electrodes 6, so that the resistive layer 4 completely covers these contact electrodes 6.
- the contact electrodes 6 are formed on the substrate 16 and the thickness of these contact electrodes 6 is measured in a direction locally perpendicular to this substrate 16, and the thickness of the resistive layer 4 is also measured according to a direction locally perpendicular to the substrate 16.
- the contact electrodes 6 each have a face 18 opposite to the substrate 16 and the resistive layer 4 completely covers this face 18 opposite the substrate.
- the thickness d of the resistive layer 4 which covers the contact electrode 6 is between 20% of the thickness e of the contact electrode 6 and 100% or 50% of the thickness of this electrode of contact.
- the local thickness d of the resistive layer 4 which covers the contact electrode 6 is 8 micrometers for an electrode thickness of 40 micrometers.
- the electrode 6 has a substantially rectangular periphery in cross section, and the resistive layer 4 has a shape in the contact zone with this electrode which matches at least two perpendicular sides of the rectangular periphery.
- resistive layer 4 locally has a wedge shape, with a right angle.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Heating (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1904978A FR3096219B1 (fr) | 2019-05-13 | 2019-05-13 | Structure chauffante pour véhicule automobile |
PCT/EP2020/063104 WO2020229433A1 (fr) | 2019-05-13 | 2020-05-11 | Structure chauffante pour vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3969300A1 true EP3969300A1 (fr) | 2022-03-23 |
Family
ID=67587871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20723449.3A Pending EP3969300A1 (fr) | 2019-05-13 | 2020-05-11 | Structure chauffante pour vehicule automobile |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220063377A1 (fr) |
EP (1) | EP3969300A1 (fr) |
FR (1) | FR3096219B1 (fr) |
WO (1) | WO2020229433A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3098370A1 (fr) * | 2019-07-02 | 2021-01-08 | Valeo Systemes Thermiques | Structure chauffante pour véhicule automobile |
US11897317B2 (en) * | 2019-08-19 | 2024-02-13 | Volvo Car Corporation | Infrared heating module, vehicle and software program for providing climate control |
FR3151961A1 (fr) * | 2023-08-03 | 2025-02-07 | Valeo Systemes Thermiques | Structure chauffante, notamment pour habitacle de véhicule |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7049559B2 (en) * | 2002-06-19 | 2006-05-23 | Matsushita Electric Industrial Co., Ltd. | Flexible PTC heating element and method of manufacturing the heating element |
KR101265895B1 (ko) * | 2009-10-21 | 2013-05-20 | (주)엘지하우시스 | 발열 필름 및 그를 포함하는 발열 제품 |
JP5983495B2 (ja) | 2013-03-28 | 2016-08-31 | 株式会社デンソー | 輻射ヒータ装置 |
US20180213606A1 (en) * | 2017-01-26 | 2018-07-26 | Goodrich Corporation | Carbon allotrope heaters with multiple interdigitated electrodes |
-
2019
- 2019-05-13 FR FR1904978A patent/FR3096219B1/fr active Active
-
2020
- 2020-05-11 EP EP20723449.3A patent/EP3969300A1/fr active Pending
- 2020-05-11 WO PCT/EP2020/063104 patent/WO2020229433A1/fr unknown
-
2021
- 2021-11-11 US US17/524,508 patent/US20220063377A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US20220063377A1 (en) | 2022-03-03 |
FR3096219A1 (fr) | 2020-11-20 |
FR3096219B1 (fr) | 2021-04-30 |
CN113825659A (zh) | 2021-12-21 |
WO2020229433A1 (fr) | 2020-11-19 |
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Legal Events
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