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WO2021058505A1 - Dispositif de chauffage électrique pour un véhicule, procédé de production et utilisation d'un procédé de gravure - Google Patents

Dispositif de chauffage électrique pour un véhicule, procédé de production et utilisation d'un procédé de gravure Download PDF

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Publication number
WO2021058505A1
WO2021058505A1 PCT/EP2020/076470 EP2020076470W WO2021058505A1 WO 2021058505 A1 WO2021058505 A1 WO 2021058505A1 EP 2020076470 W EP2020076470 W EP 2020076470W WO 2021058505 A1 WO2021058505 A1 WO 2021058505A1
Authority
WO
WIPO (PCT)
Prior art keywords
base plate
metallic base
housing
heating
heating element
Prior art date
Application number
PCT/EP2020/076470
Other languages
German (de)
English (en)
Inventor
Andreas Bernhardt
Frank Baur
Andreas Schiessl
Michael Decker
Original Assignee
Vitesco Technologies 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
Application filed by Vitesco Technologies GmbH filed Critical Vitesco Technologies GmbH
Publication of WO2021058505A1 publication Critical patent/WO2021058505A1/fr

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
    • H05B3/22—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
    • H05B3/262—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 insulated metal plate
    • 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
    • B60H1/2221—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 an intermediate liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • 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
    • B60H2001/2268—Constructional features
    • B60H2001/2278—Connectors, water supply, housing, mounting brackets
    • 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
    • H05B2203/022—Heaters specially adapted for heating gaseous material
    • H05B2203/023—Heaters of the type used for electrically heating the air blown in a vehicle compartment by the vehicle heating system

Definitions

  • Electric heating device for a vehicle as well as a method for producing and using an etching method
  • Electric heating devices are used in motor vehicles, for example, as additional heaters to supplement the heating of the motor vehicle interior and other components, which is primarily done by the waste heat from the engine, or, for example, to enable heating when the vehicle is at a standstill.
  • electrical heating devices in vehicles with an electric or hybrid drive in which the drive unit of the motor vehicle emits no or insufficient waste heat for heating or air conditioning the vehicle. It is advantageous if a heating device for electric or hybrid vehicles is also suitable, in addition to supplying the interior of the motor vehicle with the required heat, also the heat required for the processes taking place in individual system parts of the motor vehicle, or at least providing this heat, such as for Example for preheating the vehicle battery.
  • DE 10 2011 057 105 A1 discloses an electrical heating element which has a heat exchanger which is designed to transfer heat to a medium to be heated.
  • the heat exchanger has a surface which is in direct contact with the medium to be heated for heat transfer. There, the surface of the heat exchanger is provided, for example, with a plurality of ribs or projections in order to achieve an improved heat transfer to the medium to be heated.
  • the heat exchanger is formed from a material with high thermal conductivity and can in particular be formed from metal, such as in particular aluminum, copper, an aluminum alloy or a copper alloy.
  • the heat exchanger is designed to transfer heat to a fluid as a medium to be heated.
  • the medium to be heated can in particular be air or a liquid in a liquid circuit of a vehicle, in particular cooling liquid.
  • This heat exchanger simultaneously forms a substrate, on the back of which an electrically insulating layer is applied by means of a coating technique, which has a high thermal conductivity.
  • the electrically insulating layer can in particular be formed from Al2O3 and can be applied by means of a spraying method, in particular by means of thermal spraying.
  • On the side of the electrically insulating layer facing away from the heat exchanger is means a coating technique applied an electrically conductive resistance layer, which is structured as one or more conductor tracks.
  • the electrically conductive resistance layer is designed in such a way that an electrical voltage can be applied to it in order to convert electrical energy into thermal energy.
  • the electrically conductive resistance layer can be applied, for example, by a spraying process.
  • the side of the electrically conductive resistance layer facing away from the heat exchanger is in turn provided with an electrically insulating layer, which is also applied by means of a coating technique.
  • the electrically insulating layer can be formed from the same material as the electrically insulating layer, in particular from Al2O3.
  • the electrical heating element can be produced here, for example, by means of a method as described in EP 1 459 332 B1.
  • a method for producing an electrically conductive resistance layer in which an electrically conductive material is applied to a non-conductive substrate by means of thermal spraying, plasma spraying, high-speed flame spraying, arc spraying, autogenous spraying, laser spraying or cold gas spraying, the electrically conductive material being applied flat in this way that a material layer created therefrom initially has essentially no desired shape, and then the material layer is removed in areas such that an electrically conductive resistance layer is created which has essentially the desired shape, the local electrical resistance of the electrically conductive resistance layer being replaced by a local heat treatment is set by locally entering oxides into the layer.
  • the material layer can be removed in certain areas by means of laser radiation, a water jet or a powder sandblast, so that the electrically conductive resistance layer is in particular meander-shaped, at least in certain areas.
  • DE 203 19 024 U1 discloses a surface heating element which is designed as a resistance heater with a multi-layer structure and which converts electrical energy supplied into thermal energy and uses it a carrier material of the surface heating element emits.
  • the carrier material has a flat, curved or a multi-dimensionally shaped surface, with a heat-generating electrical conductor being applied to the carrier material to be heated by means of a screen printing process.
  • a plastic-based insulating layer is applied over the electrical conductor by means of a screen printing process or by spraying on or by rolling on, and the insulating layer is dried and cured at a maximum temperature of 300 ° C.
  • the carrier material can consist of an electrically insulating material such as plastic, metal oxide, metal nitrite or an electrically conductive carrier to which an electrically insulating coating, for example made of enamel or glass, was applied in a previous manufacturing step.
  • an electrically conductive material such as aluminum, copper or steel, with a plastic-based insulating layer being applied to the carrier material between the carrier material and the heat-generating electrical conductor, which has been dried and cured at temperatures of a maximum of 300 ° C .
  • the heat-generating electrical conductor can be a conductive paste made of a carbon-conductive lacquer, which has a solids content of more than 60% and, in addition to carbon dust, also contains graphite with a grain size of preferably 5 to 7 ⁇ m.
  • the insulating layer can consist of solder mask or electrical insulation lacquer or impregnating lacquer for electrical and / or electronic components.
  • the heat-generating electrical conductor can be designed over the entire surface or as a conductor track structure of any geometry.
  • the metallic base plate of the heating element is connected to a wall of the housing.
  • an insulated metal substrate is advantageously used here as the carrier material, in which the heating cables are produced on the insulating layer in a circuit board manufacturing process and can therefore be modified very flexibly and quickly.
  • the copper cladding can be structured in a simple way by etching. This is considerably cheaper and more flexible than thermal spraying.
  • the underside of the insulated metal substrate has good contact with the cooling medium. Due to the good thermal properties of the insulated metal substrate and the good contact with the cooling medium, a very high degree of efficiency is possible. Due to the good thermal structure, high electrical outputs are possible with little space requirement.
  • the wall of the housing, to which the metallic base plate of the heating element is connected has an opening which is closed by the metallic base plate.
  • connection of the metallic base plate to the housing wall is a screw connection, a seal being arranged between the metallic base plate and the edge of the opening.
  • the metallic base plate of the heating element is arranged on the wall of the housing, it being possible for the edge of the metallic base plate to be welded to the housing wall.
  • a method for manufacturing an electric heater for a vehicle according to one aspect of the present disclosure has the steps
  • the structuring of the copper lamination to form the heating lines takes place in an expedient development of the method by means of etching.
  • the method also has the following steps:
  • the method is used to produce an electrical heating device in accordance with one of the embodiments and developments described above.
  • an etching method for producing heating lines of a heating element by means of structuring a copper lamination on an insulating layer which is formed on a metallic base plate.
  • etching process can expediently take place for the production of an electrical heating device according to one of the embodiments and developments described above.
  • FIG. 1 shows a housing 1 with a coolant connection, which can be an inflow or an outflow connection 2 for the coolant, only one of which is shown schematically.
  • the housing 1 can, for example, be the housing of a vehicle radiator, but it should also be possible to heat the coolant, for example to heat a passenger compartment of a vehicle or to preheat the vehicle battery, for example of an electric vehicle, in the cold season.
  • a fleece element 3 is arranged on the housing 1 and is formed with a base plate 4 made of metal, preferably aluminum, an electrically insulating layer 5 formed thereon, and heating conductors 6 formed thereon.
  • the heating conductors 6 are produced by structuring a copper cladding, for example by means of etching, and can advantageously have a meandering shape.
  • This structure and the way in which the fleece element 3 is positioned is referred to as an insulated metal substrate and can be implemented in a simple and cost-effective manner using a circuit board manufacturing process.
  • the metallic base plate 4 can be a wall of the housing 1, whereby a direct contact with the cooling medium occurs, but it can also be attached to a wall of the housing 1, for example by welding, which also makes a good one thermally conductive contact is realized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Surface Heating Bodies (AREA)

Abstract

L'invention concerne un dispositif de chauffage électrique pour un véhicule, lequel dispositif de chauffage électrique comprend : un boîtier (1), qui présente un point de raccordement d'entrée et un point de raccordement de sortie (2) pour un agent de refroidissement ; et un élément chauffant (3), qui est formé avec une plaque de base métallique (4), une couche isolante (5) est appliquée sur ladite plaque de base métallique, des lignes chauffantes (6) sont formées sur ladite couche isolante par structuration d'une stratification de cuivre, la plaque de base métallique (4) de l'élément chauffant (3) étant raccordée à une paroi du boîtier (1). L'invention concerne, en outre, un procédé de production d'un dispositif de chauffage électrique et l'utilisation d'un procédé de gravure.
PCT/EP2020/076470 2019-09-24 2020-09-23 Dispositif de chauffage électrique pour un véhicule, procédé de production et utilisation d'un procédé de gravure WO2021058505A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019214588.4 2019-09-24
DE102019214588.4A DE102019214588A1 (de) 2019-09-24 2019-09-24 Elektrische Heizvorrichtung für ein Fahrzeug

Publications (1)

Publication Number Publication Date
WO2021058505A1 true WO2021058505A1 (fr) 2021-04-01

Family

ID=72615883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/076470 WO2021058505A1 (fr) 2019-09-24 2020-09-23 Dispositif de chauffage électrique pour un véhicule, procédé de production et utilisation d'un procédé de gravure

Country Status (2)

Country Link
DE (1) DE102019214588A1 (fr)
WO (1) WO2021058505A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20319024U1 (de) 2003-12-05 2004-03-11 Econ Export + Consulting Group Gmbh Flächenheizelement
WO2005044478A2 (fr) * 2003-10-20 2005-05-19 International Resistive Company Film resistif utilise sur un tube d'aluminium
DE602004004528T2 (de) * 2003-05-19 2007-10-31 Seb S.A. Einrichtung zur erwärmung einer flüssigkeit für ein haushaltsgerät, mit der einrichtung ausgestattetes haushaltsgerät
EP1459332B1 (fr) 2001-12-19 2008-11-12 Watlow Electric Manufacturing Company Procede pour produire une couche resistive electroconductrice et dispositif de chauffage et/ou de refroidissement
DE102011057105A1 (de) 2011-12-28 2013-07-04 Webasto Ag Elektrische Fahrzeugheizvorrichtung
EP2959932A1 (fr) * 2013-02-22 2015-12-30 Yong Il Cho Module de dispositif chauffant pour dispositif de chauffage d'appareil de perfusion de liquide et son procédé de fabrication
CN107454690A (zh) * 2017-09-22 2017-12-08 东莞市国研电热材料有限公司 一种电动汽车供暖用铝基发热体及制备方法
WO2019169502A1 (fr) * 2018-03-07 2019-09-12 Dana Canada Corporation Échangeur de chaleur à élément chauffant électrique intégré

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9024419D0 (en) * 1990-11-09 1991-01-02 Ist Lab Ltd Heating apparatus
FR3008030B1 (fr) * 2013-07-02 2017-02-17 Valeo Systemes Thermiques Dispositif de chauffage de fluide pour vehicule automobile et appareil de chauffage et/ou de climatisation correspondant

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1459332B1 (fr) 2001-12-19 2008-11-12 Watlow Electric Manufacturing Company Procede pour produire une couche resistive electroconductrice et dispositif de chauffage et/ou de refroidissement
DE602004004528T2 (de) * 2003-05-19 2007-10-31 Seb S.A. Einrichtung zur erwärmung einer flüssigkeit für ein haushaltsgerät, mit der einrichtung ausgestattetes haushaltsgerät
WO2005044478A2 (fr) * 2003-10-20 2005-05-19 International Resistive Company Film resistif utilise sur un tube d'aluminium
DE20319024U1 (de) 2003-12-05 2004-03-11 Econ Export + Consulting Group Gmbh Flächenheizelement
DE102011057105A1 (de) 2011-12-28 2013-07-04 Webasto Ag Elektrische Fahrzeugheizvorrichtung
EP2959932A1 (fr) * 2013-02-22 2015-12-30 Yong Il Cho Module de dispositif chauffant pour dispositif de chauffage d'appareil de perfusion de liquide et son procédé de fabrication
CN107454690A (zh) * 2017-09-22 2017-12-08 东莞市国研电热材料有限公司 一种电动汽车供暖用铝基发热体及制备方法
WO2019169502A1 (fr) * 2018-03-07 2019-09-12 Dana Canada Corporation Échangeur de chaleur à élément chauffant électrique intégré

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