EP3096095A1 - Electric heating device - Google Patents

Electric heating device Download PDF

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Publication number
EP3096095A1
EP3096095A1 EP15168131.9A EP15168131A EP3096095A1 EP 3096095 A1 EP3096095 A1 EP 3096095A1 EP 15168131 A EP15168131 A EP 15168131A EP 3096095 A1 EP3096095 A1 EP 3096095A1
Authority
EP
European Patent Office
Prior art keywords
circuit board
heating device
housing
printed circuit
electric heating
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.)
Granted
Application number
EP15168131.9A
Other languages
German (de)
French (fr)
Other versions
EP3096095B1 (en
Inventor
Jean-Philippe Gries
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle International GmbH
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Mahle International GmbH
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Publication date
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Priority to EP15168131.9A priority Critical patent/EP3096095B1/en
Publication of EP3096095A1 publication Critical patent/EP3096095A1/en
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Classifications

    • 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
    • F24H3/0429—For vehicles
    • 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
    • F24H9/0052—Details for air heaters
    • F24H9/0057—Guiding means
    • F24H9/0063—Guiding means in air channels
    • 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
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
    • 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
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient
    • 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

  • the invention relates to a heating device according to the preamble of claim 1. Moreover, the invention relates to a heating or air conditioning with such a heater.
  • the waste heat of the motor vehicle engine is usually used for the heating of the vehicle interior of a motor vehicle. This waste heat arises after the vehicle engine is turned on. In a sufficient amount for the desired heat output, however, the waste heat can usually be provided only after a certain warm-up time. In addition, in modern, low-consumption motor vehicle engines, a comparatively small amount of waste heat is created. In motor vehicles with an electric motor as a drive motor, this heat source completely falls away or is considerably reduced, because the electric motor hardly generates waste heat in comparison to an internal combustion engine. It is therefore customary, especially in cold weather conditions, to use electric heaters or additional electric heaters.
  • the EP 1 253 808 A2 discloses an automotive electric heater having a plurality of heaters stacked in a block.
  • the individual heating elements are held together by a rectangular frame.
  • a control unit for electronic control of the heating power is integrated, so that the heating elements and the control unit form a common structural unit.
  • window-like openings are embedded, so that an air flow in the air flow direction of an air flow in an air channel can flow through these openings in order to cool the control unit.
  • An embodiment of the invention relates to an electrical heating device, in particular for a motor vehicle, with at least one heating element, and with a housing, with a first housing side, wherein the at least one heating element is arranged in a first plane and the first housing side in a first plane in Essentially vertically intersecting second Level and adjacent to the at least one heating element is arranged, further comprising at least one substantially parallel to the first plane arranged printed circuit board with a first printed circuit board side and one of the first printed circuit board side opposite second printed circuit board side, wherein the second printed circuit board side has a partial section.
  • the first housing side has at least one window-like opening, wherein the housing has a housing bottom arranged substantially parallel to the first plane, at least one opening is formed on the housing underside and the partial section is arranged in the region of the at least one opening, so that the partial section substantially is free.
  • a further embodiment of the electric heating device provides that the at least one window-like opening and / or the at least one opening is or are formed as a recess open on one side.
  • the electric heating device can be arranged in a heating and / or air conditioning system such that the air flow sucked in by a fan of the heating and / or air conditioning system flows through the window-like openings as far as the exposed partial section.
  • the circuit board is cooled in an advantageous manner by the air flow without a significant additional material, energy or manufacturing costs incurred for the cooling.
  • a further embodiment of the electric heating device provides that a substantially channel-like depression is formed in the region of the housing underside. Through the channel-like depression, part of the air flow sucked in by the fan of the heating and / or air conditioning system can be diverted and is available for cooling the printed circuit board.
  • An additional embodiment of the electrical heating device has a channel-like depression which runs essentially parallel to the first housing side.
  • the channel-like depression and the at least one window-like opening are fluidly connected to one another.
  • An additional embodiment of the electric heater provides that the channel-like recess is formed as a substantially unilaterally open continuous channel.
  • the at least one opening is arranged substantially in the region of the channel-like depression.
  • a further embodiment of the electric heating device provides that at least one electronic control element is arranged in the region of the first printed circuit board side.
  • the power of the electric heating device can be controlled, for example, via the on-board computer of a motor vehicle.
  • a further embodiment of the electric heater provides that the at least one heating element with the housing and / or the circuit board is formed releasably or permanently connected. This allows easy mounting of the electric heater.
  • the at least one heating element has at least one positive-temperature-coefficient element.
  • a further exemplary embodiment of the electric heating device provides that the at least one heating element has at least one heat-dissipating surface, with a number of heat-conducting fins which increase the at least one heat-dissipating surface.
  • An advantageous embodiment of the heating and / or air conditioning with an air duct provides that in the air duct one according to the above said description designed electric heater can be arranged.
  • the at least one electrical heating element and the at least one printed circuit board and / or the housing protrude into the air duct.
  • An additional embodiment of the heating and / or air conditioning system provides that the partial section is arranged in the air channel or the channel-like depression is designed to be fluid-connected to the air channel.
  • a heating and / or air conditioning is created, which also produces a very good heating performance in motor vehicles with modern, consumption-optimized and only slightly waste heat producing engines as well as in motor vehicles with electric motors.
  • sensitive components to be cooled are arranged in a heating and / or air conditioning electrical heating device in energy, material and space-saving manner cooled.
  • FIGS. 1 to 4 each show a schematic view of an embodiment of an electric heater. 1
  • the electric heater 1 may be arranged in a not shown heating and / or air conditioning of a motor vehicle.
  • the electric heating device 1 has a housing 3 and at least one control device with a printed circuit board 10.
  • the at least one printed circuit board 10 may have a rigid structure or a flexible structure.
  • the at least one printed circuit board 10 may be a single-layer printed circuit board 10, a two-layer printed circuit board 10 or a multilayer printed circuit board 10.
  • the printed circuit board 10 has a first printed circuit board side 11 and a second printed circuit board side 12 lying opposite the first printed circuit board side 11.
  • connection 18 for the electrical power supply of the electric heating device 1 is arranged in the region of the first printed circuit board side 11.
  • the electric heater 1 can be connected to an unillustrated electrical system of the motor vehicle.
  • connection 19 for an electronic connection of the electric heating device 1 is arranged with a control logic, not shown.
  • the electric heating device 1 can be activated, for example, via an on-board computer arranged in the motor vehicle.
  • the exemplary embodiment of an electrical heating device 1 in the region of the first printed circuit board side 11 has three electronic control elements 15.
  • the electric heater 1 has one, two, four, five, six, or a plurality of such controls 15.
  • the at least one control element 15 may, in alternative embodiments, also be arranged outside the region of the first printed circuit board side 11 or both in the region of the first printed circuit board side 11 and outside the region of the first printed circuit board side 11.
  • the at least one control element 15 may, for example, be a power transistor, in particular a metal-oxide-semiconductor field-effect transistor.
  • the electric heating device 1 has at least one heating element 2.
  • the electric heating device 1 may have different numbers of heating elements 2.
  • the electric heating device 1 has a plurality of heating elements 2.
  • the heating elements for example, to a Heating block stacked or layered present and optionally be enclosed by a frame made of metal or plastic.
  • the structure of the heating elements 2 and / or the structure of the heating block can also vary in different embodiments.
  • the at least one heating element 2 has a positive-temperature-coefficient element 16, also referred to as a PTC element, and contact plates and heat-conducting ribs 17 arranged adjacent to the PTC element 16.
  • the at least one heating element 2 may have other forms of resistance heating elements than a PTC element.
  • the at least one heating element 2 is arranged in a first plane 5.
  • the at least one heating element 2 has a first heating element end 26 and a second heating element end 27 opposite the first heating element end 26.
  • the at least one heating element 2 is connected to the first printed circuit board 10 via a plug 23 and a contact surface 24 in the region of a first housing side 4.
  • the at least one heating element 2 is otherwise connected to the printed circuit board 10.
  • FIG. 3 By way of example, five plugs 23 arranged in the region of the first housing side 4 are shown. In various embodiments, the number of connectors 23 may also vary.
  • the first housing side 4 is arranged in a second plane 6, which vertically intersects the first plane 5, and adjacent to the at least one heating element 2.
  • the size and number of the window-like openings 7 arranged in the region of the first housing side 4 may vary.
  • the at least one heating element 2, the first housing side 4 and the at least one window-like opening 7 formed in the region of the first housing side 4 are advantageously arranged in a heating and / or air conditioning system such that the at least one heating element 2, the first housing side 4 and the at least one window-like opening 7 protrude into an air duct 20 of the heating and / or air conditioning and / or are arranged in an air flow to be heated.
  • air of the air flow can flow into the at least one window-like opening 7.
  • the housing 3 also has a housing bottom 8.
  • the housing bottom 8 is arranged offset parallel to the first plane 5 and with respect to the printed circuit board 10 against an air flow direction 22 in the air flow direction downstream.
  • the housing bottom 8 has an opening 9. In the region of the opening 9 or adjacent to the opening 9, a partial section 13 of the second printed circuit board side 12 is arranged. By means of the opening 9, the portion 13 of the second printed circuit board side 12 is exposed. The air flowing therethrough can thus directly cool the printed circuit board 10, because the air can flow directly past the second printed circuit board side 12.
  • FIG. 1 For example, a partial airflow 25 is shown.
  • the partial air flow 25 flows through the at least one window-like opening 7.
  • the partial air flow 25 flows along the housing bottom 8, the opening 9 and the partial section 13.
  • FIG. 1 an air duct wall 21 is shown schematically.
  • the housing 3 protrudes into the air duct 20 with approximately one half of its extent.
  • the housing 3 projects with a part of its extension into the air duct 20 which is larger or smaller than half its circumference.
  • a channel-like recess 14 is formed in the area of the housing bottom 8.
  • the channel-like depression 14 may be designed, for example, such that the opening 9 and the partial section 13 are arranged in the region of the channel-like depression 14.
  • the channel-like recess 14 is formed in the region of the housing bottom 8 as a kind of continuous channel, wherein the partial air flow 25, the channel-like recess 14 flows through.

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

Abstract

Die Erfindung betrifft eine elektrische Heizvorrichtung (1), insbesondere für ein Kraftfahrzeug, mit zumindest einem Heizelement (2) und mit einem Gehäuse (3) mit einer ersten Gehäuseseite (4), wobei das zumindest eine Heizelement (2) in einer ersten Ebene (5) angeordnet ist und die erste Gehäuseseite (4) in einer die erste Ebene (5) im Wesentlichen vertikal schneidenden zweiten Ebene (6) und benachbart zu dem zumindest einen Heizelement (2) angeordnet ist, weiterhin mit zumindest einer im Wesentlichen parallel zur ersten Ebene (5) angeordneten Leiterplatte (10) mit einer ersten Leiterplattenseite (11) und einer der ersten Leiterplattenseite (11) gegenüberliegenden zweiten Leiterplattenseite (12), wobei die zweite Leiterplattenseite (12) einen Teilabschnitt (13) aufweist, wobei die erste Gehäuseseite (4) zumindest eine fensterartige Öffnung (7) aufweist, wobei das Gehäuse (3) eine im Wesentlichen parallel zur ersten Ebene (5) angeordnete Gehäuseunterseite (8) aufweist, wobei an der Gehäuseunterseite (8) zumindest eine Öffnung (9) ausgebildet ist und der Teilabschnitt (13) im Bereich der zumindest einen Öffnung (9) angeordnet ist, so dass der Teilabschnitt (13) im Wesentlichen frei liegt.The invention relates to an electrical heating device (1), in particular for a motor vehicle, having at least one heating element (2) and having a housing (3) with a first housing side (4), wherein the at least one heating element (2) is in a first plane ( 5) and the first housing side (4) is disposed in a first plane (5) substantially vertically intersecting second plane (6) and adjacent to the at least one heating element (2), further comprising at least one substantially parallel to the first Plane (5) arranged printed circuit board (10) having a first printed circuit board side (11) and one of the first printed circuit board side (11) opposite the second printed circuit board side (12), wherein the second printed circuit board side (12) has a partial section (13), wherein the first housing side ( 4) has at least one window-like opening (7), wherein the housing (3) has a housing bottom (8) arranged substantially parallel to the first plane (5), wherein a n the housing bottom (8) at least one opening (9) is formed and the partial section (13) in the region of the at least one opening (9) is arranged, so that the partial section (13) is substantially free.

Description

Technischestechnical Gebietarea

Die Erfindung betrifft eine Heizvorrichtung gemäß dem Oberbegriff von Anspruch 1. Darüber hinaus betrifft die Erfindung eine Heiz- oder Klimaanlage mit einer solchen Heizvorrichtung.The invention relates to a heating device according to the preamble of claim 1. Moreover, the invention relates to a heating or air conditioning with such a heater.

Standwas standing derof the Techniktechnology

Für die Beheizung des Fahrzeuginnenraums eines Kraftfahrzeugs wird üblicherweise die Abwärme des Kraftfahrzeugmotors verwendet. Diese Abwärme entsteht, nachdem der Kraftfahrzeugmotor eingeschaltet ist. In einem für die gewünschte Heizleistung ausreichenden Maß kann die Abwärme in der Regel jedoch erst nach einer gewissen Warmlaufzeit bereitgestellt werden. Hinzu kommt, dass bei neueren, verbrauchsärmeren Kraftfahrzeugmotoren ein vergleichsweise geringes Maß an Abwärme entsteht. Bei Kraftfahrzeugen mit einem Elektromotor als Antriebsmotor fällt diese Wärmequelle vollständig weg bzw. ist erheblich reduziert, weil der Elektromotor im Vergleich zu einem Verbrennungsmotor kaum Abwärme erzeugt. Daher ist es üblich, vor allem bei kalten Witterungsbedingungen, elektrische Heizvorrichtungen bzw. elektrische Zusatzheizvorrichtungen einzusetzen.For the heating of the vehicle interior of a motor vehicle, the waste heat of the motor vehicle engine is usually used. This waste heat arises after the vehicle engine is turned on. In a sufficient amount for the desired heat output, however, the waste heat can usually be provided only after a certain warm-up time. In addition, in modern, low-consumption motor vehicle engines, a comparatively small amount of waste heat is created. In motor vehicles with an electric motor as a drive motor, this heat source completely falls away or is considerably reduced, because the electric motor hardly generates waste heat in comparison to an internal combustion engine. It is therefore customary, especially in cold weather conditions, to use electric heaters or additional electric heaters.

Die EP 1 253 808 A2 offenbart eine elektrische Heizeinrichtung für Kraftfahrzeuge mit mehreren zu einem Block gestapelten Heizelementen. Dabei werden die einzelnen Heizelemente durch einen rechteckförmigen Rahmen zusammengehalten. In einen Seitenholm des Rahmens ist eine Steuereinheit zur elektronischen Regelung der Heizleistung integriert, so dass die Heizelemente und die Steuereinheit eine gemeinsame Baueinheit bilden. An einer Seite des Seitenholms, welche in der Flächenebene des Rahmens liegt, sind fensterartige Öffnungen eingelassen, so dass ein Luftstrom in Luftströmungsrichtung eines Luftstroms in einem Luftkanal durch diese Öffnungen strömen kann, um die Steuereinheit kühlen zu können.The EP 1 253 808 A2 discloses an automotive electric heater having a plurality of heaters stacked in a block. The individual heating elements are held together by a rectangular frame. In a side rail of the frame, a control unit for electronic control of the heating power is integrated, so that the heating elements and the control unit form a common structural unit. On one side of the side member, which lies in the surface plane of the frame, window-like openings are embedded, so that an air flow in the air flow direction of an air flow in an air channel can flow through these openings in order to cool the control unit.

Darstellung der Erfindung, Aufgabe, Lösung, VorteilePresentation of the invention, object, solution, advantages

Ausgehend von diesem Stand der Technik ist es die Aufgabe der Erfindung, eine weiter verbesserte elektrische Heizvorrichtung bereitzustellen, die insbesondere energie-, material- und bauraumsparend ausgebildet ist und dennoch eine ausreichende Kühlung elektronischer Komponenten der elektrischen Heizvorrichtung ermöglicht.Based on this prior art, it is the object of the invention to provide a further improved electrical heating device, which is designed in particular energy, material and space saving and still allows sufficient cooling of electronic components of the electric heater.

Darüber hinaus ist es die Aufgabe der Erfindung, eine Heizungs- und/oder Klimaanlage zu schaffen, in welcher eine solche elektrische Heizvorrichtung einsetzbar ist.Moreover, it is the object of the invention to provide a heating and / or air conditioning in which such an electric heater can be used.

Die Aufgabe zur elektrischen Heizvorrichtung wird mit den Merkmalen von Anspruch 1 gelöst.The object of the electric heater is achieved with the features of claim 1.

Ein Ausführungsbeispiel der Erfindung betrifft eine elektrische Heizvorrichtung, insbesondere für ein Kraftfahrzeug, mit zumindest einem Heizelement, und mit einem Gehäuse, mit einer ersten Gehäuseseite, wobei das zumindest eine Heizelement in einer ersten Ebene angeordnet ist und die erste Gehäuseseite in einer die erste Ebene im Wesentlichen vertikal schneidenden zweiten Ebene und benachbart zu dem zumindest einen Heizelement angeordnet ist, weiterhin mit zumindest einer im Wesentlichen parallel zur ersten Ebene angeordneten Leiterplatte mit einer ersten Leiterplattenseite und einer der ersten Leiterplattenseite gegenüberliegenden zweiten Leiterplattenseite, wobei die zweite Leiterplattenseite einen Teilabschnitt aufweist. Die erste Gehäuseseite weist zumindest eine fensterartige Öffnung auf, wobei das Gehäuse eine im Wesentlichen parallel zur ersten Ebene angeordnete Gehäuseunterseite aufweist, an der Gehäuseunterseite zumindest eine Öffnung ausgebildet ist und der Teilabschnitt im Bereich der zumindest einen Öffnung angeordnet ist, so dass der Teilabschnitt im Wesentlichen frei liegt.An embodiment of the invention relates to an electrical heating device, in particular for a motor vehicle, with at least one heating element, and with a housing, with a first housing side, wherein the at least one heating element is arranged in a first plane and the first housing side in a first plane in Essentially vertically intersecting second Level and adjacent to the at least one heating element is arranged, further comprising at least one substantially parallel to the first plane arranged printed circuit board with a first printed circuit board side and one of the first printed circuit board side opposite second printed circuit board side, wherein the second printed circuit board side has a partial section. The first housing side has at least one window-like opening, wherein the housing has a housing bottom arranged substantially parallel to the first plane, at least one opening is formed on the housing underside and the partial section is arranged in the region of the at least one opening, so that the partial section substantially is free.

Eine weitere Ausführungsform der elektrischen Heizvorrichtung sieht vor, dass die zumindest eine fensterartige Öffnung und/oder die zumindest eine Öffnung als einseitig offene Aussparung ausgebildet ist bzw. sind.A further embodiment of the electric heating device provides that the at least one window-like opening and / or the at least one opening is or are formed as a recess open on one side.

Die elektrische Heizvorrichtung lässt sich derart in einer Heizungs- und/oder Klimaanlage anordnen, dass der von einem Gebläse der Heizungs- und/oder Klimaanlage angesaugte Luftstrom durch die fensterartigen Öffnungen bis zu dem freiliegende Teilabschnitt strömt. Dabei wird die Leiterplatte in vorteilhafterweise durch den Luftstrom gekühlt, ohne dass für die Kühlung ein wesentlicher zusätzlicher Material-, Energie- oder Fertigungsaufwand anfällt.The electric heating device can be arranged in a heating and / or air conditioning system such that the air flow sucked in by a fan of the heating and / or air conditioning system flows through the window-like openings as far as the exposed partial section. In this case, the circuit board is cooled in an advantageous manner by the air flow without a significant additional material, energy or manufacturing costs incurred for the cooling.

Eine weitere Ausführungsform der elektrischen Heizvorrichtung sieht vor, dass im Bereich der Gehäuseunterseite eine im Wesentlichen kanalartige Vertiefung ausgebildet ist. Durch die kanalartige Vertiefung kann ein Teil des von dem Gebläse der Heizungs- und/oder Klimaanlage angesaugten Luftstroms umgeleitet werden und steht zur Kühlung der Leiterplatte zur Verfügung.A further embodiment of the electric heating device provides that a substantially channel-like depression is formed in the region of the housing underside. Through the channel-like depression, part of the air flow sucked in by the fan of the heating and / or air conditioning system can be diverted and is available for cooling the printed circuit board.

Ein zusätzliches Ausführungsbeispiel der elektrischen Heizvorrichtung weist eine kanalartige Vertiefung auf, die im Wesentlichen parallel zur ersten Gehäuseseite verläuft.An additional embodiment of the electrical heating device has a channel-like depression which runs essentially parallel to the first housing side.

Bei einem weiteren Ausführungsbeispiel der elektrischen Heizvorrichtung sind die kanalartige Vertiefung und die zumindest eine fensterartige Öffnung miteinander fluidverbunden.In a further embodiment of the electric heating device, the channel-like depression and the at least one window-like opening are fluidly connected to one another.

Eine zusätzliche Ausführungsform der elektrischen Heizvorrichtung sieht vor, dass die kanalartige Vertiefung als eine im Wesentlichen einseitig offene durchgehende Rinne ausgebildet ist.An additional embodiment of the electric heater provides that the channel-like recess is formed as a substantially unilaterally open continuous channel.

Bei einem weiteren Ausführungsbeispiel der elektrischen Heizvorrichtung ist die zumindest eine Öffnung im Wesentlichen im Bereich der kanalartigen Vertiefung angeordnet.In a further embodiment of the electric heating device, the at least one opening is arranged substantially in the region of the channel-like depression.

Durch diese Ausführungsformen werden Strömungsrichtung und Strömungsgeschwindigkeit des durch die kanalartige Vertiefung strömenden Teils des Luftstroms verbessert und der auf den freiliegenden Teilabschnitt der zweiten Leiterplattenseite wirkende Kühlungseffekt erhöht.As a result of these embodiments, the flow direction and flow velocity of the part of the air flow flowing through the channel-like depression are improved, and the cooling effect acting on the exposed section of the second circuit board side is increased.

Eine weitere Ausführungsform der elektrischen Heizvorrichtung sieht vor, dass im Bereich der ersten Leiterplattenseite zumindest ein elektronisches Steuerelement angeordnet ist.A further embodiment of the electric heating device provides that at least one electronic control element is arranged in the region of the first printed circuit board side.

Darüber hinaus ist bei einem zusätzlichen Ausführungsbeispiel der elektrischen Heizvorrichtung im Bereich der ersten Leiterplattenseite zumindest ein Anschluss für eine Stromversorgung und/oder zumindest ein Anschluss für eine Ansteuerfogik angeordnet.In addition, in an additional embodiment of the electric heater in the region of the first circuit board side at least one connection for a power supply and / or at least one connection for a Ansteuerfogik arranged.

Dadurch lässt sich die Leistung der elektrischen Heizvorrichtung beispielsweise über den Bordcomputer eines Kraftfahrzeugs steuern.As a result, the power of the electric heating device can be controlled, for example, via the on-board computer of a motor vehicle.

Eine weitere Ausführungsform der elektrischen Heizvorrichtung sieht vor, dass das zumindest eine Heizelement mit dem Gehäuse und/oder der Leiterplatte lösbar oder unlösbar verbindbar ausgebildet ist. Dadurch wird eine einfache Montage der elektrischen Heizvorrichtung ermöglicht.A further embodiment of the electric heater provides that the at least one heating element with the housing and / or the circuit board is formed releasably or permanently connected. This allows easy mounting of the electric heater.

Bei einem zusätzlichen Ausführungsbeispiel der elektrischen Heizvorrichtung weist das zumindest eine Heizelement zumindest ein Positive-Temperature-Coefficient-Element auf. Diese auch als PTC-Elemente bezeichneten Komponenten der elektrischen Heizvorrichtung gewährleisten, dass sich im Fahrzeuginnenraum rasch eine für Fahrzeuginsassen komfortable Temperatur einstellt und insbesondere die Windschutzscheibe frei von Feuchtigkeitsbeschlag ist.In an additional embodiment of the electric heater, the at least one heating element has at least one positive-temperature-coefficient element. These components of the electric heating device, also referred to as PTC elements, ensure that a comfortable temperature for vehicle occupants is quickly established in the vehicle interior and, in particular, the windscreen is free from moisture fogging.

Ein weiteres Ausführungsbeispiel der elektrischen Heizvorrichtung sieht vor, dass das zumindest eine Heizelement zumindest eine wärmeableitende Oberfläche aufweist, mit einer Anzahl von Wärmeleitrippen welche die zumindest eine wärmeableitende Oberfläche vergrößern. Durch die oberflächenvergrößernde Wirkung der Wärmeleitrippen, wird die Wärmeübertragung von dem zumindest einen Heizelement auf einen an dem zumindest einen Heizelement vorbeigeführten Luftstrom noch erheblich verbessert.A further exemplary embodiment of the electric heating device provides that the at least one heating element has at least one heat-dissipating surface, with a number of heat-conducting fins which increase the at least one heat-dissipating surface. As a result of the surface-enlarging effect of the heat-conducting ribs, the heat transfer from the at least one heating element to a flow of air guided past the at least one heating element is considerably improved.

Die Aufgabe zur Heizungs- und/oder Klimaanlage wird mit den Merkmalen der Ansprüche 13 bis 15 gelöst.The object of the heating and / or air conditioning is achieved with the features of claims 13 to 15.

Eine vorteilhafte Ausführungsform der Heizungs- und/oder Klimaanlage mit einem Luftkanal sieht vor, dass in dem Luftkanal eine gemäß der oben genannten Beschreibung gestaltete elektrische Heizvorrichtung anordenbar ist.An advantageous embodiment of the heating and / or air conditioning with an air duct provides that in the air duct one according to the above said description designed electric heater can be arranged.

Bei einer besonders vorteilhaften Ausführungsform der Heizungs- und/oder Klimaanlage mit einem Luftkanal ragen das zumindest eine elektrische Heizelement und die zumindest eine Leiterplatte und/oder das Gehäuse in den Luftkanal hinein.In a particularly advantageous embodiment of the heating and / or air conditioning system with an air duct, the at least one electrical heating element and the at least one printed circuit board and / or the housing protrude into the air duct.

Ein zusätzliches Ausführungsbeispiel der Heizungs- und/oder Klimaanlage sieht vor, dass der Teilabschnitt im Luftkanal angeordnet ist oder die kanalartige Vertiefung mit dem Luftkanal fluidverbunden ausgebildet ist.An additional embodiment of the heating and / or air conditioning system provides that the partial section is arranged in the air channel or the channel-like depression is designed to be fluid-connected to the air channel.

Dadurch wird eine Heizungs- und/oder Klimaanlage geschaffen, die auch in Kraftfahrzeugen mit modernen, verbrauchsoptimierten und nur wenig Abwärme produzierenden Motoren sowie auch in Kraftfahrzeugen mit Elektromotoren eine sehr gute Heizleistung erzeugt. Darüber hinaus werden empfindliche zu kühlende Komponenten der in einer Heizungs- und/oder Klimaanlage angeordneten elektrischen Heizvorrichtung auf energie-, material- und bauraumsparende Weise gekühlt.As a result, a heating and / or air conditioning is created, which also produces a very good heating performance in motor vehicles with modern, consumption-optimized and only slightly waste heat producing engines as well as in motor vehicles with electric motors. In addition, sensitive components to be cooled are arranged in a heating and / or air conditioning electrical heating device in energy, material and space-saving manner cooled.

Weitere vorteilhafte Ausgestaltungen sind durch die nachfolgende Figurenbeschreibung und durch die Unteransprüche beschrieben.Further advantageous embodiments are described by the following description of the figures and by the subclaims.

Kurze Beschreibung derShort description of Zeichnungendrawings

Nachstehend wird die Erfindung auf der Grundlage zumindest eines Ausführungsbeispiels anhand der Figuren der Zeichnung näher erläutert. Es zeigen:

Fig. 1
eine schematische perspektivische Ansicht einer elektrischen Heizvorrichtung,
Fig. 2
eine Ansicht eines vertikal zur Luftströmungsrichtung geführten Schnitts durch eine elektrische Heizvorrichtung gemäß Figur 1,
Fig. 3
eine schematische Draufsicht auf eine elektrische Heizvorrichtung gemäß Figur 1, und
Fig. 4
eine schematische perspektivische Ansicht einzelner Komponenten einer elektrischen Heizvorrichtung gemäß Figur 1.
The invention will be explained in more detail on the basis of at least one embodiment with reference to the figures of the drawing. Show it:
Fig. 1
a schematic perspective view of an electric heater,
Fig. 2
a view of a guided vertically to the air flow direction section through an electric heater according to FIG. 1 .
Fig. 3
a schematic plan view of an electric heater according to FIG. 1 , and
Fig. 4
a schematic perspective view of individual components of an electric heater according to FIG. 1 ,

Bevorzugte Ausführung derPreferred embodiment of Erfindunginvention

Die Figuren 1 bis 4 zeigen jeweils eine schematische Ansicht eines Ausführungsbeispiels einer elektrischen Heizvorrichtung 1.The FIGS. 1 to 4 each show a schematic view of an embodiment of an electric heater. 1

Die elektrische Heizvorrichtung 1 kann in einer nicht dargestellten Heizungs- und/oder Klimaanlage eines Kraftfahrzeugs angeordnet sein.The electric heater 1 may be arranged in a not shown heating and / or air conditioning of a motor vehicle.

Die elektrische Heizvorrichtung 1 weist ein Gehäuse 3 und zumindest eine Steuervorrichtung mit einer Leiterplatte 10 auf. Die zumindest eine Leiterplatte 10 kann dabei eine starre Struktur oder eine flexible Struktur aufweisen. Darüber hinaus kann es sich in verschiedenen Ausführungsformen der elektrischen Heizvorrichtung 1 bei der zumindest einen Leiterplatte 10 um eine einlagige Leiterplatte 10, eine zweilagige Leiterplatte 10 oder eine mehrlagige Leiterplatte 10 handeln.The electric heating device 1 has a housing 3 and at least one control device with a printed circuit board 10. The at least one printed circuit board 10 may have a rigid structure or a flexible structure. In addition, in various embodiments of the electric heating device 1, the at least one printed circuit board 10 may be a single-layer printed circuit board 10, a two-layer printed circuit board 10 or a multilayer printed circuit board 10.

Die Leiterplatte 10 weist eine erste Leiterplattenseite 11 und eine der ersten Leiterplattenseite 11 gegenüberliegende zweite Leiterplattenseite 12 auf.The printed circuit board 10 has a first printed circuit board side 11 and a second printed circuit board side 12 lying opposite the first printed circuit board side 11.

Im Bereich der ersten Leiterplattenseite 11 ist ein Anschluss 18 zur elektrischen Stromversorgung der elektrischen Heizvorrichtung 1 angeordnet. Mittels des Anschlusses 18 kann die elektrische Heizvorrichtung 1 an ein nicht dargestelltes Bordstromnetz des Kraftfahrzeugs angeschlossen werden.In the region of the first printed circuit board side 11, a connection 18 for the electrical power supply of the electric heating device 1 is arranged. By means of the terminal 18, the electric heater 1 can be connected to an unillustrated electrical system of the motor vehicle.

Darüber hinaus ist in diesem Ausführungsbeispiel im Bereich der ersten Leiterplattenseite 11 ein Anschluss 19 für eine elektronische Verbindung der elektrischen Heizvorrichtung 1 mit einer nicht dargestellten Ansteuerlogik angeordnet. Mittels des Anschlusses 19 ist die elektrische Heizvorrichtung 1 beispielsweise über einen im Kraftfahrzeug angeordneten Bordcomputer ansteuerbar.In addition, in this embodiment, in the region of the first printed circuit board side 11, a connection 19 for an electronic connection of the electric heating device 1 is arranged with a control logic, not shown. By means of the connection 19, the electric heating device 1 can be activated, for example, via an on-board computer arranged in the motor vehicle.

In den Figuren 1 und 2 ist dargestellt, dass das Ausführungsbeispiel einer elektrischen Heizvorrichtung 1 im Bereich der ersten Leiterplattenseite 11 drei elektronische Steuerelemente 15 aufweist. In alternativen Ausführungsbeispielen weist die elektrische Heizvorrichtung 1 eine, zwei, vier, fünf, sechs oder eine Mehrzahl an solchen Steuerelementen 15 auf. Das zumindest eine Steuerelement 15 kann in alternativen Ausführungsbeispielen darüber hinaus auch außerhalb des Bereichs der ersten Leiterplattenseite 11 oder sowohl im Bereich der ersten Leiterplattenseite 11 und außerhalb des Bereichs der ersten Leiterplattenseite 11 angeordnet sein.In the Figures 1 and 2 It is shown that the exemplary embodiment of an electrical heating device 1 in the region of the first printed circuit board side 11 has three electronic control elements 15. In alternative embodiments, the electric heater 1 has one, two, four, five, six, or a plurality of such controls 15. The at least one control element 15 may, in alternative embodiments, also be arranged outside the region of the first printed circuit board side 11 or both in the region of the first printed circuit board side 11 and outside the region of the first printed circuit board side 11.

Das zumindest eine Steuerelement 15 kann beispielsweise ein Leistungstransistor, insbesondere ein Metall-Oxid-Halbleiter-Feldeffekttransistor sein.The at least one control element 15 may, for example, be a power transistor, in particular a metal-oxide-semiconductor field-effect transistor.

Darüber hinaus weist die elektrische Heizvorrichtung 1 zumindest ein Heizelement 2 auf. In verschiedenen Ausführungsformen kann die elektrische Heizvorrichtung 1 verschiedene Anzahlen von Heizelementen 2 aufweisen. Vorteilhafterweise weist die elektrische Heizvorrichtung 1 eine Mehrzahl an Heizelementen 2 auf. Die Heizelemente 2 können beispielsweise zu einem Heizblock gestapelt oder geschichtet vorliegen und optional von einem aus Metall oder Kunststoff gefertigten Rahmen eingefasst sein. Der Aufbau der Heizelemente 2 und/oder der Aufbau des Heizblocks können in unterschiedlichen Ausführungsbeispielen auch variieren. In dem in den Figuren 1 bis 4 dargestellten Ausführungsbeispiel weist das zumindest eine Heizelement 2 ein auch als PTC-Element bezeichnetes Positive-Temperature-Coefficient-Element 16 und benachbart zu dem PTC-Element 16 angeordnete Kontaktbleche und Wärmeleitrippen 17 auf. In alternativen Ausführungsformen kann das zumindest eine Heizelement 2 anstatt eines PTC-Elements auch andere Formen von Widerstandsheizelementen aufweisen.In addition, the electric heating device 1 has at least one heating element 2. In various embodiments, the electric heating device 1 may have different numbers of heating elements 2. Advantageously, the electric heating device 1 has a plurality of heating elements 2. The heating elements 2, for example, to a Heating block stacked or layered present and optionally be enclosed by a frame made of metal or plastic. The structure of the heating elements 2 and / or the structure of the heating block can also vary in different embodiments. In the in the FIGS. 1 to 4 1, the at least one heating element 2 has a positive-temperature-coefficient element 16, also referred to as a PTC element, and contact plates and heat-conducting ribs 17 arranged adjacent to the PTC element 16. In alternative embodiments, the at least one heating element 2 may have other forms of resistance heating elements than a PTC element.

Das zumindest eine Heizelement 2 ist dabei in einer ersten Ebene 5 angeordnet. Das zumindest eine Heizelement 2 weist ein erstes Heizelementende 26 und ein dem ersten Heizelementende 26 gegenüberliegendes zweites Heizelementende 27 auf. Im Bereich des ersten Heizelementendes 26 ist das zumindest eine Heizelement 2 über einen Stecker 23 und eine Kontaktfläche 24 im Bereich einer ersten Gehäuseseite 4 mit der ersten Leiterplatte 10 verbunden. In alternativen Ausführungsbeispielen ist das zumindest eine Heizelement 2 auf andere Weise mit der Leiterplatte 10 verbunden.The at least one heating element 2 is arranged in a first plane 5. The at least one heating element 2 has a first heating element end 26 and a second heating element end 27 opposite the first heating element end 26. In the region of the first heating element end 26, the at least one heating element 2 is connected to the first printed circuit board 10 via a plug 23 and a contact surface 24 in the region of a first housing side 4. In alternative embodiments, the at least one heating element 2 is otherwise connected to the printed circuit board 10.

In Figur 3 sind beispielhaft fünf im Bereich der ersten Gehäuseseite 4 angeordnete Stecker 23 dargestellt. In unterschiedlichen Ausführungsbeispielen kann die Anzahl der Stecker 23 auch variieren.In FIG. 3 By way of example, five plugs 23 arranged in the region of the first housing side 4 are shown. In various embodiments, the number of connectors 23 may also vary.

Die erste Gehäuseseite 4 ist in einer zweiten Ebene 6, welche die erste Ebene 5 vertikal schneidet, und benachbart zu dem zumindest einen Heizelement 2 angeordnet.The first housing side 4 is arranged in a second plane 6, which vertically intersects the first plane 5, and adjacent to the at least one heating element 2.

Im Bereich der ersten Gehäuseseite 4 ist zumindest eine fensterartige Öffnung 7, vorteilhaft auch zwei, drei, vier, fünf, oder eine Mehrzahl an fensterartigen Öffnungen 7 ausgebildet. In verschiedenen Ausführungsformen kann die Größe und die Anzahl der im Bereich der ersten Gehäuseseite 4 angeordneten fensterartigen Öffnungen 7 variieren.In the region of the first housing side 4 is at least one window-like opening 7, advantageously also two, three, four, five, or a plurality of window-like Openings 7 formed. In various embodiments, the size and number of the window-like openings 7 arranged in the region of the first housing side 4 may vary.

Das zumindest eine Heizelement 2, die erste Gehäuseseite 4 und die zumindest eine im Bereich der ersten Gehäuseseite 4 ausgebildete fensterartige Öffnung 7 sind in einer Heizungs- und/oder Klimaanlage vorteilhafterweise so angeordnet, dass das zumindest eine Heizelement 2, die erste Gehäuseseite 4 und die zumindest eine fensterartige Öffnung 7 in einen Luftkanal 20 der Heizungs- und/oder Klimaanlage hineinragen und/oder in einem zu erwärmenden Luftstrom angeordnet sind. So kann Luft des Luftstroms in die zumindest eine fensterartige Öffnung 7 einströmen.The at least one heating element 2, the first housing side 4 and the at least one window-like opening 7 formed in the region of the first housing side 4 are advantageously arranged in a heating and / or air conditioning system such that the at least one heating element 2, the first housing side 4 and the at least one window-like opening 7 protrude into an air duct 20 of the heating and / or air conditioning and / or are arranged in an air flow to be heated. Thus, air of the air flow can flow into the at least one window-like opening 7.

Das Gehäuse 3 weist darüber hinaus eine Gehäuseunterseite 8 auf. Die Gehäuseunterseite 8 ist parallel zur ersten Ebene 5 und in Bezug auf die Leiterplatte 10 entgegen einer Luftströmungsrichtung 22 in Luftströmungsrichtung stromabwärts versetzt angeordnet.The housing 3 also has a housing bottom 8. The housing bottom 8 is arranged offset parallel to the first plane 5 and with respect to the printed circuit board 10 against an air flow direction 22 in the air flow direction downstream.

Die Gehäuseunterseite 8 weist eine Öffnung 9 auf. Im Bereich der Öffnung 9 oder benachbart zu der Öffnung 9 ist ein Teilabschnitt 13 der zweiten Leiterplattenseite 12 angeordnet. Mittels der Öffnung 9 liegt der Teilabschnitt 13 der zweiten Leiterplattenseite 12 frei. Die dort durchströmende Luft kann damit die Leiterplatte 10 direkt kühlen, weil die Luft an der zweiten Leiterplattenseite 12 unmittelbar vorbei strömen kann.The housing bottom 8 has an opening 9. In the region of the opening 9 or adjacent to the opening 9, a partial section 13 of the second printed circuit board side 12 is arranged. By means of the opening 9, the portion 13 of the second printed circuit board side 12 is exposed. The air flowing therethrough can thus directly cool the printed circuit board 10, because the air can flow directly past the second printed circuit board side 12.

In Figur 1 ist beispielhaft ein Teilluftstrom 25 dargestellt. Der Teilluftstrom 25 strömt durch die zumindest eine fensterartige Öffnung 7. Dabei strömt der Teilluftstrom 25 entlang der Gehäuseunterseite 8, der Öffnung 9 und dem Teilabschnitt 13.In FIG. 1 For example, a partial airflow 25 is shown. The partial air flow 25 flows through the at least one window-like opening 7. In this case, the partial air flow 25 flows along the housing bottom 8, the opening 9 and the partial section 13.

In Figur 1 ist eine Luftkanalwand 21 schematisch dargestellt. Das Gehäuse 3 ragt dabei mit etwa einer Hälfte seiner Erstreckung in den Luftkanal 20 hinein. In alternativen Ausführungsbeispielen ragt das Gehäuse 3 mit einem Teil seiner Erstreckung in den Luftkanal 20, welcher größer oder kleiner als die Hälfte seines Umfangs ist.In FIG. 1 an air duct wall 21 is shown schematically. The housing 3 protrudes into the air duct 20 with approximately one half of its extent. In alternative embodiments, the housing 3 projects with a part of its extension into the air duct 20 which is larger or smaller than half its circumference.

Im Bereich der Gehäuseunterseite 8 ist eine kanalartige Vertiefung 14 ausgebildet. Die kanalartige Vertiefung 14 kann beispielhaft so ausgebildet sein, dass die Öffnung 9 und der Teilabschnitt 13 im Bereich der kanalartigen Vertiefung 14 angeordnet sind. Die kanalartige Vertiefung 14 ist im Bereich der Gehäuseunterseite 8 als eine Art durchgehende Rinne ausgebildet, wobei der Teilluftstrom 25 die kanalartige Vertiefung 14 durchströmt.In the area of the housing bottom 8, a channel-like recess 14 is formed. The channel-like depression 14 may be designed, for example, such that the opening 9 and the partial section 13 are arranged in the region of the channel-like depression 14. The channel-like recess 14 is formed in the region of the housing bottom 8 as a kind of continuous channel, wherein the partial air flow 25, the channel-like recess 14 flows through.

Claims (15)

Elektrische Heizvorrichtung (1), insbesondere für ein Kraftfahrzeug, mit zumindest einem Heizelement (2) und mit einem Gehäuse (3) mit einer ersten Gehäuseseite (4), wobei das zumindest eine Heizelement (2) in einer ersten Ebene (5) angeordnet ist und die erste Gehäuseseite (4) in einer die erste Ebene (5) im Wesentlichen vertikal schneidenden zweiten Ebene (6) und benachbart zu dem zumindest einen Heizelement (2) angeordnet ist, weiterhin mit zumindest einer im Wesentlichen parallel zur ersten Ebene (5) angeordneten Leiterplatte (10) mit einer ersten Leiterplattenseite (11) und einer der ersten Leiterplattenseite (11) gegenüberliegenden zweiten Leiterplattenseite (12), wobei die zweite Leiterplattenseite (12) einen Teilabschnitt (13) aufweist, dadurch gekennzeichnet, dass die erste Gehäuseseite (4) zumindest eine fensterartige Öffnung (7) aufweist, wobei das Gehäuse (3) eine im Wesentlichen parallel zur ersten Ebene (5) angeordnete Gehäuseunterseite (8) aufweist, wobei an der Gehäuseunterseite (8) zumindest eine Öffnung (9) ausgebildet ist und der Teilabschnitt (13) im Bereich der zumindest einen Öffnung (9) angeordnet ist, so dass der Teilabschnitt (13) im Wesentlichen frei liegt.Electric heating device (1), in particular for a motor vehicle, with at least one heating element (2) and with a housing (3) with a first housing side (4), wherein the at least one heating element (2) is arranged in a first plane (5) and the first housing side (4) is arranged in a second plane (6) which essentially vertically intersects the first plane (5) and adjacent to the at least one heating element (2), furthermore with at least one substantially parallel to the first plane (5). arranged printed circuit board (10) having a first printed circuit board side (11) and a second printed circuit board side (12) opposite the first printed circuit board side (11), wherein the second printed circuit board side (12) has a partial section (13), characterized in that the first housing side (4 ) has at least one window-like opening (7), wherein the housing (3) has a substantially parallel to the first plane (5) arranged housing bottom side (8), wherein at the Housing bottom (8) at least one opening (9) is formed and the partial section (13) in the region of the at least one opening (9) is arranged, so that the partial section (13) is substantially exposed. Elektrische Heizvorrichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass die zumindest eine fensterartige Öffnung (7) und/oder die zumindest eine Öffnung (9) als einseitig offene Aussparung ausgebildet ist bzw. sind.Electric heating device (1) according to claim 1, characterized in that the at least one window-like opening (7) and / or the at least one opening (9) is designed as a recess open on one side or are. Elektrische Heizvorrichtung (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass im Bereich der Gehäuseunterseite (8) eine im Wesentlichen kanalartige Vertiefung (14) ausgebildet ist.Electric heating device (1) according to claim 1 or 2, characterized in that in the region of the housing underside (8) has a substantially channel-like recess (14) is formed. Elektrische Heizvorrichtung (1) nach Anspruch 3, dadurch gekennzeichnet, dass die kanalartige Vertiefung (14) im Wesentlichen parallel zur ersten Gehäuseseite (4) verläuft.Electric heating device (1) according to claim 3, characterized in that the channel-like recess (14) extends substantially parallel to the first housing side (4). Elektrische Heizvorrichtung (1) nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die kanalartige Vertiefung (14) und die zumindest eine fensterartige Öffnung (7) miteinander fluidverbunden sind.Electric heating device (1) according to claim 3 or 4, characterized in that the channel-like recess (14) and the at least one window-like opening (7) are fluidly connected to each other. Elektrische Heizvorrichtung (1) nach Anspruch 3, 4 oder 5, dadurch gekennzeichnet, dass die kanalartige Vertiefung (14) als eine im Wesentlichen einseitig offene durchgehende Rinne ausgebildet ist.Electric heating device (1) according to claim 3, 4 or 5, characterized in that the channel-like recess (14) is formed as a substantially unilaterally open continuous channel. Elektrische Heizvorrichtung (1) nach Anspruch 3, 4, 5 oder 6, dadurch gekennzeichnet, dass die zumindest eine Öffnung (9) im Wesentlichen im Bereich der kanalartigen Vertiefung (14) angeordnet ist.Electric heating device (1) according to claim 3, 4, 5 or 6, characterized in that the at least one opening (9) is arranged substantially in the region of the channel-like depression (14). Elektrische Heizvorrichtung (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass im Bereich der ersten Leiterplattenseite (11) zumindest ein elektronisches Steuerelement (15) angeordnet ist.Electric heating device (1) according to one of the preceding claims, characterized in that in the region of the first printed circuit board side (11) at least one electronic control element (15) is arranged. Elektrische Heizvorrichtung (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass im Bereich der ersten Leiterplattenseite (11) zumindest ein Anschluss für eine Stromversorgung (18) und/oder zumindest ein Anschluss für eine Ansteuerlogik (19) angeordnet ist.Electric heating device (1) according to one of the preceding claims, characterized in that in the region of the first printed circuit board side (11) at least one connection for a power supply (18) and / or at least one connection for a drive logic (19) is arranged. Elektrische Heizvorrichtung (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das zumindest eine Heizelement (2) mit dem Gehäuse (3) und/oder der Leiterplatte (10) lösbar oder unlösbar verbindbar ausgebildet ist.Electric heating device (1) according to one of the preceding claims, characterized in that the at least one Heating element (2) with the housing (3) and / or the circuit board (10) is formed releasably or permanently connected. Elektrische Heizvorrichtung (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das zumindest eine Heizelement (2) zumindest ein Positive-Temperature-Coefficient-Element (PTC-Element) (16) aufweist.Electric heating device (1) according to one of the preceding claims, characterized in that the at least one heating element (2) has at least one positive temperature coefficient coefficient element (PTC element) (16). Elektrische Heizvorrichtung (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das zumindest eine Heizelement (2) zumindest eine wärmeableitende Oberfläche aufweist, mit einer Anzahl von Wärmeleitrippen (17), welche die zumindest eine wärmeableitende Oberfläche vergrößern.Electric heating device (1) according to one of the preceding claims, characterized in that the at least one heating element (2) has at least one heat-dissipating surface, with a number of heat-conducting ribs (17) which increase the at least one heat-dissipating surface. Heizungs- und/oder Klimaanlage mit einem Luftkanal (20), dadurch gekennzeichnet, dass in dem Luftkanal (20) eine elektrische Heizvorrichtung (1) nach einem der vorhergehenden Ansprüche angeordnet ist.Heating and / or air conditioning system with an air duct (20), characterized in that in the air duct (20) an electric heating device (1) according to one of the preceding claims is arranged. Heizungs- und/oder Klimaanlage nach Anspruch 13, dadurch gekennzeichnet, dass das zumindest eine Heizelement (2) und die zumindest eine Leiterplatte (10) und/oder das Gehäuse (3) in den Luftkanal (20) hineinragen.Heating and / or air conditioning system according to claim 13, characterized in that the at least one heating element (2) and the at least one printed circuit board (10) and / or the housing (3) protrude into the air channel (20). Heizungs- und/oder Klimaanlage nach Anspruch 13 oder 14, dadurch gekenryzeichnet, dass der Teilabschnitt (13) im Luftkanal angeordnet ist oder die kanalartige Vertiefung (14) mit dem Luftkanal fluidverbunden ausgebildet ist.Heating and / or air conditioning system according to claim 13 or 14, characterized gekenryzeichnet that the partial section (13) is arranged in the air duct or the channel-like recess (14) is formed fluidly connected to the air duct.
EP15168131.9A 2015-05-19 2015-05-19 Electric heating device Active EP3096095B1 (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
FR3064818A1 (en) * 2017-03-31 2018-10-05 Valeo Systemes Thermiques COVER FOR A HEATING DEVICE BOX FOR A MOTOR VEHICLE
FR3079451A1 (en) * 2018-03-29 2019-10-04 Valeo Systemes Thermiques ELECTRIC HEATING DEVICE AND INSTALLATION FOR HEATING AND / OR VENTILATION AND / OR AIR CONDITIONING THEREFOR

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925757A1 (en) * 1999-06-05 2000-12-07 Behr France Sarl Heater especially for motor vehicle has heater block enclosed by a frame, with heat emanating control components integrated into vol. enclosed by frame near heater block
EP1253808A2 (en) 2000-05-23 2002-10-30 Catem GmbH & Co.KG Electrical heating device, in particular for use in vehicles
DE202005002115U1 (en) * 2005-02-09 2006-06-14 Catem Gmbh & Co. Kg Electric heating device, in particular for use in motor vehicles
EP2056036A1 (en) * 2007-10-31 2009-05-06 Valeo Systemes Thermiques Device for electrically heating an air flow circulating in a ventilation, heating and/or air-conditioning installation of an automobile vehicle
EP2863143A1 (en) * 2013-10-21 2015-04-22 Mahle Behr France Rouffach S.A.S Heating device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925757A1 (en) * 1999-06-05 2000-12-07 Behr France Sarl Heater especially for motor vehicle has heater block enclosed by a frame, with heat emanating control components integrated into vol. enclosed by frame near heater block
EP1253808A2 (en) 2000-05-23 2002-10-30 Catem GmbH & Co.KG Electrical heating device, in particular for use in vehicles
DE202005002115U1 (en) * 2005-02-09 2006-06-14 Catem Gmbh & Co. Kg Electric heating device, in particular for use in motor vehicles
EP2056036A1 (en) * 2007-10-31 2009-05-06 Valeo Systemes Thermiques Device for electrically heating an air flow circulating in a ventilation, heating and/or air-conditioning installation of an automobile vehicle
EP2863143A1 (en) * 2013-10-21 2015-04-22 Mahle Behr France Rouffach S.A.S Heating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3064818A1 (en) * 2017-03-31 2018-10-05 Valeo Systemes Thermiques COVER FOR A HEATING DEVICE BOX FOR A MOTOR VEHICLE
FR3079451A1 (en) * 2018-03-29 2019-10-04 Valeo Systemes Thermiques ELECTRIC HEATING DEVICE AND INSTALLATION FOR HEATING AND / OR VENTILATION AND / OR AIR CONDITIONING THEREFOR

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