EP3734153B1 - Vehicle heating device - Google Patents

Vehicle heating device Download PDF

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Publication number
EP3734153B1
EP3734153B1 EP20163297.3A EP20163297A EP3734153B1 EP 3734153 B1 EP3734153 B1 EP 3734153B1 EP 20163297 A EP20163297 A EP 20163297A EP 3734153 B1 EP3734153 B1 EP 3734153B1
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EP
European Patent Office
Prior art keywords
support structure
support
vehicle heater
cover element
mounting
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.)
Active
Application number
EP20163297.3A
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German (de)
French (fr)
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EP3734153A1 (en
Inventor
Andreas Collmer
Hans Jensen
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
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Eberspaecher Climate Control Systems GmbH and Co KG
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Application filed by Eberspaecher Climate Control Systems GmbH and Co KG filed Critical Eberspaecher Climate Control Systems GmbH and Co KG
Priority to PL20163297T priority Critical patent/PL3734153T3/en
Publication of EP3734153A1 publication Critical patent/EP3734153A1/en
Application granted granted Critical
Publication of EP3734153B1 publication Critical patent/EP3734153B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14001—Sealing or support of burner plate borders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/21—Burners specially adapted for a particular use
    • F23D2900/21002—Burners specially adapted for a particular use for use in car heating systems

Definitions

  • the present invention relates to a vehicle heater which has a mounting arrangement for fixed attachment to a support structure in a vehicle.
  • This heater 10 includes a generally designated 12 and 7 only partially shown heater housing made of plastic material, for example, in which a flow chamber 14 through which air to be heated is formed is formed.
  • a combustor assembly 16 is carried within the heater housing 12 .
  • the combustion chamber assembly 16 receives liquid fuel via a fuel line 20 and the combustion air required for combustion via a combustion air fan 22 designed as a side channel fan.
  • the combustion air is taken in via a combustion air inlet port 24 of a fan housing 26 and guided in the direction of the combustion chamber assembly 16 under the conveying effect of a conveying wheel 28 .
  • the combustion exhaust gases produced during combustion in the combustion chamber assembly 16 leave the combustion chamber assembly 16 via a flame tube 28 and flow along an inner side 30 of a heat exchanger housing 18 back to an exhaust gas outlet connection 32 formed on the heat exchanger housing 18.
  • a fan motor 34 which also drives the feed wheel 28 of the combustion air fan 22 to rotate also drives a heating air feed wheel 36 arranged in the heater housing 12 to rotate. This sucks in the heating air via an inlet opening 38 of the heater housing 12 and conveys it along the flow chamber 14 and also along an outer surface 40 of the heat exchanger housing 18, so that the heating air to be heated passes the heater housing 12 at an in 7 not shown outlet heated leaves.
  • an opening 42 is formed in the heater housing 12, in the area of which a mounting base 44 formed integrally with the heat exchanger housing 18 and also the exhaust gas outlet connection 32 is arranged.
  • a made of elastic material such. B. silicone material, covered cover element 46 covers the mounting base 44 and the opening 42 and thus ensures a gas-tight seal of the heater housing 12 in the area of the opening 42.
  • the cover element 46 has for the combustion air inlet connection 24, the exhaust gas outlet connection 32, the fuel line 20 and also fastening bolts used to define the vehicle heater 10 on a support structure have respective reach-through openings.
  • the cover element 46 comes into contact with the mounting bolt (not shown) on the support structure and is clamped between the mounting base 44 and the support structure, whereby on the one hand an elastic contact of the vehicle heater 10 on the support structure is achieved, and on the other hand the compression of the cover element 46 ensures a reliable, gas-tight seal in the area of all organs guided through the opening 42 is ensured.
  • a vehicle heater according to the preamble of claim 1 is from DE 32 29 365 A1 known.
  • the object of the present invention is to provide a vehicle heater with a mounting arrangement for firmly attaching the vehicle heater to a support structure on a vehicle, which, with a simple structural design, enables a stable connection of the vehicle heater to the support structure that is protected against excessive loads.
  • a plurality of fastening bolts protruding or to be positioned protruding beyond the base surface are provided on the mounting base for stable attachment of the vehicle heater to the support structure, with a bolt passage opening being provided in the cover element in association with each fastening bolt.
  • At least one, preferably each, support projection is provided on a fastening bolt. This avoids the need to make structural changes to the mounting base to provide one or more support projections.
  • the mounting base is not supported on the support structure or not primarily by the cover element covering the mounting base. Rather, the mounting base rests against the support structure via at least one support projection protruding beyond the base surface or its support structure support area.
  • a defined and essentially rigid supporting interaction is thus achieved between the mounting base and the carrier structure, which essentially completely avoids the occurrence of relative movements even when the vehicle heater is subject to heavy vibration loads. Due to the supporting interaction brought about in a defined manner by means of the at least one supporting projection, a load which leads to deformations of the mounting base when it is fixed to the support structure, for example by means of fastening bolts, is furthermore avoided.
  • the cover member can also achieve a sealing effect for the vehicle heater if it is elastically deformable.
  • a projection height of the at least one support projection over the base surface is then preferably smaller than a thickness of the non-deformed cover element between the base contact surface and the support structure contact surface.
  • the elastically deformable cover element can be easily deformed when the vehicle heater is fixed to the support structure, so that it can in particular also reliably fulfill the sealing function intended for it. Since the support is nevertheless also implemented via the at least one support projection, this defines the positioning of the mounting base with respect to the support structure independently of the presence or deformation of the cover element.
  • each supporting element through-opening can have a Form the mounting bolt reach-through opening. This avoids an excessively large number of openings in the cover element.
  • the mounting base can be provided as an integral part of a cast component, preferably a heat exchanger component.
  • the invention also relates to an assembly unit, comprising a support structure and a vehicle heater fixed to the support structure and having a structure according to the invention, the at least one support projection reaching through an associated support projection reach-through opening of the cover element being supported on the support structure with the support structure support area provided thereon.
  • the support structure can comprise a support plate with a covering element contact surface.
  • a bolt penetration opening be provided in the carrier plate in association with each attachment bolt.
  • the 1 shows the vehicle heater 10 in a perspective view.
  • the opening 42 in the heater housing 12 accommodating the mounting base 44 can be seen on the underside of the heater housing 12 .
  • FIG 5 As can be clearly seen, in the area of this opening 42 in the heater housing 12 there is an outwardly protruding edge area 50 surrounding the opening 42, which is surrounded on the outside by an edge area 52 of the essentially plate-like cover element 46, so that in the area of these too each other overlapping edge regions 50, 52 a gas-tight seal is achieved.
  • the mounting base 44 embodied in this configuration, for example, as an integral part of the heat exchanger housing 18 provided as a cast part, provides a base surface 54 on which the essentially plate-like cover element 46 with a base contact surface 56 bears essentially flat.
  • the cover element 54 On its side facing away from the base contact surface 56 provides the cover element 54 has a support structure contact surface 58 ready, with which the cover element 46 abuts or is supported on a cover element contact surface 60 of a support structure 61 comprising a support plate 62, for example.
  • this support structure 61 can be a body part of a vehicle, for example, which provides the essentially uncurved covering element contact surface 60 in the area in which the vehicle heater 10 is to be fixed to this support structure 61 .
  • the base surface 54 or the base contact surface 56 and the support structure contact surface 58 are also preferably designed to be essentially non-curved.
  • the mounting assembly 63 which includes in particular the mounting base 44 and the cover element 46, includes four fastening bolts 64 arranged, for example, in a rectangular structure Internally threaded openings trained mounting bolt receiving openings 65 screwed. With an externally threaded area 68 protruding beyond base area 44 or its base surface 54, fastening bolts 64 pass through bolt passage openings 70 in cover element 46 and bolt passage openings 72 in carrier plate 62 of carrier structure 64. On the side of carrier structure 61 facing away from vehicle heater 10, there is one on each fastening bolt 64 Screwed nut 74 so that the vehicle heater 10 is fixed to the support structure 61 in the area of the fastening bolts 64 by tightening the nuts 74 .
  • a supporting projection 76 is provided which protrudes beyond the base surface 54 and surrounds a respective fastening bolt 64 in the manner of a ring.
  • Each of these support projections 76 is preferably provided as an integral part of the mounting base 44 and thus also of the heat exchanger housing 18 and has a support structure 78 facing or abutting on the support structure 61 and surrounding a respective fastening bolt 64 in a ring-like manner.
  • the fastening bolts 64 at a distance from them Ring-like supporting projections 76 surrounding the outer surface engage in the bolt passage openings 70 of the cover element 46 through which the fastening bolts 64 pass, so that these also provide a supporting projection passage opening 80 in association with each supporting projection 76 .
  • the projection height of the support projections 76 over the base surface 54 of the mounting base 44 is selected such that it is smaller than the thickness of the uncompressed or deformed cover element 46 between its base contact surface 56 and its support structure contact surface 58.
  • the vehicle heater 10 is bolted to the support structure 64 in the area of the mounting base 44 with respect to the block. It is therefore also not possible for lateral forces that excessively load the fastening bolts 64 to act on them, since a load on the fastening bolts 64 is essentially only generated in the direction of their longitudinal axis. It is also ensured that a defined clamping of the cover element 46 between the support structure 61 and the mounting base 44 caused by excessive tightening of the nuts 74 or locally different loads in the cover element 46 cannot occur. Furthermore, the supporting projections 76 act exactly where the tension between the mounting base 44 and the support structure 61 is generated, namely in the area of the fastening bolts 64 or surrounding them. Therefore, none of the fastening bolts 64 can exert a force on the mounting base 44 that could lead to plastic deformation or bending or a corresponding force effect on it.
  • a support projection 76' to be provided in a vehicle heater constructed according to the invention is described.
  • This is arranged surrounding a fastening bolt 64 shown schematically.
  • the fastening bolt 64' can, for example, again have the two externally threaded areas 66', 68'.
  • the supporting projection 76′ can be designed as a collar which surrounds the fastening bolt 64′ and protrudes radially with respect to its longitudinal axis and which provides the carrier structure supporting region 78′ on one of its two end faces.
  • the supporting projection 76' can be designed in one piece with the fastening bolt 64', but can also be screwed onto it, for example, as a nut or the like.
  • openings can also be formed in cover element 46, which can accommodate, for example, a plurality of fastening bolts 64 or one or more fastening bolts and a socket or also the fuel line, possibly also a supporting projection formed separately from the fastening bolt .

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

Description

Die vorliegende Erfindung betrifft ein Fahrzeugheizgerät, das eine Montageanordnung zur festen Anbringung an einer Trägerstruktur in einem Fahrzeug aufweist.The present invention relates to a vehicle heater which has a mounting arrangement for fixed attachment to a support structure in a vehicle.

Ein derartiges aus der DE 20 2004 015 442 U1 bekanntes Fahrzeugheizgerät ist in Fig. 7 dargestellt. Dieses Heizgerät 10 umfasst ein allgemein mit 12 bezeichnetes und in Fig. 7 nur teilweise dargestelltes, beispielsweise aus Kunststoffmaterial aufgebautes Heizgerätegehäuse, in welchem ein von zu erwärmender Luft zu durchströmender Strömungsraum 14 gebildet ist. In dem Heizgerätegehäuse 12 ist eine Brennkammerbaugruppe 16 getragen. Die Brennkammerbaugruppe 16 empfängt über eine Brennstoffleitung 20 flüssigen Brennstoff und über ein als Seitenkanalgebläse ausgebildetes Verbrennungsluftgebläse 22 die zur Verbrennung erforderliche Verbrennungsluft. Die Verbrennungsluft wird über einen Verbrennungslufteinlassstutzen 24 eines Gebläsegehäuses 26 aufgenommen und unter der Förderwirkung eines Förderrads 28 in Richtung zur Brennkammerbaugruppe 16 geleitet. Die bei der Verbrennung in der Brennkammerbaugruppe 16 entstehenden Verbrennungsabgase verlassen die Brennkammerbaugruppe 16 über ein Flammrohr 28 und strömen entlang einer Innenseite 30 eines Wärmetauschergehäuses 18 zurück zu einem am Wärmetauschergehäuse 18 ausgebildeten Abgasauslassstutzen 32.Such from the DE 20 2004 015 442 U1 well-known vehicle heater is in 7 shown. This heater 10 includes a generally designated 12 and 7 only partially shown heater housing made of plastic material, for example, in which a flow chamber 14 through which air to be heated is formed is formed. A combustor assembly 16 is carried within the heater housing 12 . The combustion chamber assembly 16 receives liquid fuel via a fuel line 20 and the combustion air required for combustion via a combustion air fan 22 designed as a side channel fan. The combustion air is taken in via a combustion air inlet port 24 of a fan housing 26 and guided in the direction of the combustion chamber assembly 16 under the conveying effect of a conveying wheel 28 . The combustion exhaust gases produced during combustion in the combustion chamber assembly 16 leave the combustion chamber assembly 16 via a flame tube 28 and flow along an inner side 30 of a heat exchanger housing 18 back to an exhaust gas outlet connection 32 formed on the heat exchanger housing 18.

Ein auch das Förderrad 28 des Verbrennungsluftgebläses 22 zur Drehung antreibender Gebläsemotor 34 treibt ferner ein im Heizgerätegehäuse 12 angeordnetes Heizluftförderrad 36 zur Drehung an. Dieses saugt über eine Einlassöffnung 38 des Heizgerätegehäuses 12 die Heizluft an und fördert diese entlang des Strömungsraums 14 und dabei auch entlang einer Außenoberfläche 40 des Wärmetauschergehäuses 18, so dass die zu erwärmende Heizluft das Heizgerätegehäuse 12 an einer in Fig. 7 nicht dargestellten Auslassöffnung erwärmt verlässt.A fan motor 34 which also drives the feed wheel 28 of the combustion air fan 22 to rotate also drives a heating air feed wheel 36 arranged in the heater housing 12 to rotate. This sucks in the heating air via an inlet opening 38 of the heater housing 12 and conveys it along the flow chamber 14 and also along an outer surface 40 of the heat exchanger housing 18, so that the heating air to be heated passes the heater housing 12 at an in 7 not shown outlet heated leaves.

In einem in Fig. 7 unten dargestellten Bereich ist im Heizgerätegehäuse 12 eine Öffnung 42 ausgebildet, in deren Bereich ein mit dem Wärmetauschergehäuse 18 und auch dem Abgasauslassstutzens 32 integral ausgebildeter Montagesockel 44 angeordnet ist. Ein aus elastischem Material, wie z. B. Silikonmaterial, aufgebautes Abdeckelement 46 überdeckt den Montagesockel 44 und die Öffnung 42 und sorgt somit für einen gasdichten Abschluss des Heizgerätegehäuses 12 im Bereich der Öffnung 42. Dabei weist das Abdeckelement 46 für den Verbrennungslufteinlassstutzen 24, den Abgasauslassstutzen 32, die Brennstoffleitung 20 und auch zur Festlegung des Fahrzeugheizgeräts 10 an einer Trägerstruktur eingesetzte Befestigungsbolzen jeweilige Durchgriffsöffnungen auf. Beim Festlegen des Fahrzeugheizgeräts 10 an der Trägerstruktur vermittels der in Fig. 7 nicht dargestellten Befestigungsbolzen kommt das Abdeckelement 46 zur Anlage an der Trägerstruktur und wird zwischen dem Montagesockel 44 und der Trägerstruktur eingespannt, wodurch einerseits eine elastische Anlage des Fahrzeugheizgeräts 10 an der Trägerstruktur erreicht wird, andererseits durch die Kompression des Abdeckelements 46 ein zuverlässiger gasdichter Abschluss im Bereich aller durch die Öffnung 42 hindurch geführter Organe gewährleistet wird.in a 7 In the area shown below, an opening 42 is formed in the heater housing 12, in the area of which a mounting base 44 formed integrally with the heat exchanger housing 18 and also the exhaust gas outlet connection 32 is arranged. A made of elastic material such. B. silicone material, covered cover element 46 covers the mounting base 44 and the opening 42 and thus ensures a gas-tight seal of the heater housing 12 in the area of the opening 42. The cover element 46 has for the combustion air inlet connection 24, the exhaust gas outlet connection 32, the fuel line 20 and also fastening bolts used to define the vehicle heater 10 on a support structure have respective reach-through openings. When fixing the vehicle heater 10 to the support structure by means of the in 7 The cover element 46 comes into contact with the mounting bolt (not shown) on the support structure and is clamped between the mounting base 44 and the support structure, whereby on the one hand an elastic contact of the vehicle heater 10 on the support structure is achieved, and on the other hand the compression of the cover element 46 ensures a reliable, gas-tight seal in the area of all organs guided through the opening 42 is ensured.

Bei Integration eines derartigen Fahrzeugheizgeräts 10 in ein Fahrzeug wirken auf das Fahrzeugheizgerät 10 im Bereich der Festlegung an die Trägerstruktur starke Belastungen, welche zu Schwingungen bzw. Bewegungen des Fahrzeugheizgeräts 10 bezüglich der Trägerstruktur führen können. Diese Schwingungen sind aufgrund der elastischen Verformbarkeit des Abdeckelements 46 grundsätzlich möglich und führen zu einer starken Belastung im Bereich der zur Festlegung eingesetzten Befestigungsbolzen bzw. auch im Bereich des zum Beispiel als integraler Bestandteil des Wärmetauschergehäuses 18 bereitgestellten Montagesockels 44. Auch die Verspannung im Bereich der den Montagesockel 44 an der Trägerstruktur festlegenden Befestigungsbolzen und die dabei lokal unterschiedlich auftretenden Kompressionen des elastisch verformbaren Abdeckelements führen zu einer Verformungsbelastung des Montagesockels, verbunden mit der Gefahr einer übermäßig hohen Spannung im Werkstoff des Montagesockels bzw. einer plastischen Verformung desselben.When such a vehicle heater 10 is integrated into a vehicle, heavy loads act on the vehicle heater 10 in the area of attachment to the support structure, which can lead to vibrations or movements of the vehicle heater 10 with respect to the support structure. In principle, these vibrations are possible due to the elastic deformability of the cover element 46 and lead to severe stress in the area of the fastening bolts used for fixing or also in the area of the mounting base 44 provided, for example, as an integral part of the heat exchanger housing 18. The tension in the area of the The fastening bolts fixing the mounting base 44 to the support structure and the locally different compressions of the elastically deformable cover element result in deformation stress on the mounting base, associated with the risk of excessive stress in the material of the mounting base or plastic deformation of the same.

Ein Fahrzeugheizgerät gemäß dem Oberbegriff des Anspruchs 1 ist aus der DE 32 29 365 A1 bekannt.A vehicle heater according to the preamble of claim 1 is from DE 32 29 365 A1 known.

Es ist die Aufgabe der vorliegenden Erfindung, ein Fahrzeugheizgerät mit einer Montageanordnung zur festen Anbringung des Fahrzeugheizgeräts an einer Trägerstruktur an einem Fahrzeug vorzusehen, welches bei einfacher baulicher Ausgestaltung eine stabile, gegen übermäßige Belastung geschützte Anbindung des Fahrzeugheizgeräts an die Trägerstruktur ermöglicht.The object of the present invention is to provide a vehicle heater with a mounting arrangement for firmly attaching the vehicle heater to a support structure on a vehicle, which, with a simple structural design, enables a stable connection of the vehicle heater to the support structure that is protected against excessive loads.

Erfindungsgemäß wird diese Aufgabe gelöst durch ein Fahrzeugheizgerät, umfassend eine Montageanordnung zur festen Anbringung des Fahrzeugheizgeräts an einer Trägerstruktur, wobei die Montageanordnung umfasst:

  • einen Montagesockel mit einer einer Trägerstruktur zugewandt zu positionierenden Sockelfläche,
  • ein die Sockelfläche überdeckend zu positionierendes Abdeckelement mit einer der Sockelfläche zugewandt zu positionierenden Sockel-Anlagefläche und einer einer Trägerstruktur zugewandt zu positionierenden Trägerstruktur-Anlagefläche,
  • wenigstens einen über die Sockelfläche hervorstehenden und einen Trägerstruktur-Abstützbereich bereitstellenden Abstützvorsprung, wobei in dem Abdeckelement in Zuordnung zu dem wenigstens einen Abstützvorsprung eine Abstützvorsprung-Durchgriffsöffnung vorgesehen ist.
According to the invention, this object is achieved by a vehicle heater, comprising a mounting arrangement for fixed attachment of the vehicle heater to a support structure, the mounting arrangement comprising:
  • a mounting base with a base surface to be positioned facing a support structure,
  • a covering element to be positioned to cover the base surface, with a base contact surface to be positioned facing the base surface and a support structure contact surface to be positioned facing a support structure,
  • at least one support projection protruding beyond the base surface and providing a carrier structure support region, a support projection reach-through opening being provided in the cover element in association with the at least one support projection.

Für eine stabile Festlegung des Fahrzeugheizgeräts an der Trägerstruktur ist eine Mehrzahl von an dem Montagesockel über die Sockelfläche hervorstehenden oder hervorstehend zu positionierenden Befestigungsbolzen vorgesehen, wobei in dem Abdeckelement in Zuordnung zu jedem Befestigungsbolzen eine Bolzendurchgriffsöffnung vorgesehen ist.A plurality of fastening bolts protruding or to be positioned protruding beyond the base surface are provided on the mounting base for stable attachment of the vehicle heater to the support structure, with a bolt passage opening being provided in the cover element in association with each fastening bolt.

Erfindungsgemäß ist wenigstens ein, vorzugsweise jeder Abstützvorsprung an einem Befestigungsbolzen vorgesehen. Dies vermeidet die Notwendigkeit, am Montagesockel bauliche Änderungen zum Bereitstellen eines oder mehrere Abstützvorsprünge vornehmen zu müssen.According to the invention, at least one, preferably each, support projection is provided on a fastening bolt. This avoids the need to make structural changes to the mounting base to provide one or more support projections.

Bei dem erfindungsgemäß ausgebildeten Fahrzeugheizgerät erfolgt die Abstützung des Montagesockels an der Trägerstruktur nicht bzw. nicht primär über das den Montagesockel überdeckende Abdeckelement. Vielmehr liegt der Montagesockel über wenigstens einen über die Sockelfläche hervorstehenden Abstützvorsprung bzw. dessen Trägerstruktur-Abstützbereich an der Trägerstruktur an. Somit wird eine definierte und im Wesentlichen starre Abstützwechselwirkung zwischen dem Montagesockel und der Trägerstruktur erreicht, welche das Auftreten von Relativbewegungen auch bei starker Rüttelbelastung des Fahrzeugheizgeräts im Wesentlichen vollständig vermeidet. Aufgrund der vermittels des wenigstens einen Abstützvorsprungs definiert herbeigeführten Abstützwechselwirkung wird weiterhin eine zu Verformungen des Montagesockels führende Belastung beim Festlegen an der Trägerstruktur beispielsweise vermittels Befestigungsbolzen vermieden.In the case of the vehicle heater designed according to the invention, the mounting base is not supported on the support structure or not primarily by the cover element covering the mounting base. Rather, the mounting base rests against the support structure via at least one support projection protruding beyond the base surface or its support structure support area. A defined and essentially rigid supporting interaction is thus achieved between the mounting base and the carrier structure, which essentially completely avoids the occurrence of relative movements even when the vehicle heater is subject to heavy vibration loads. Due to the supporting interaction brought about in a defined manner by means of the at least one supporting projection, a load which leads to deformations of the mounting base when it is fixed to the support structure, for example by means of fastening bolts, is furthermore avoided.

Um eine Verteilung der Abstützlast zu erreichen, wird vorgeschlagen, dass eine Mehrzahl von Abstützvorsprüngen vorgesehen ist.In order to achieve a distribution of the support load, it is proposed that a plurality of support projections be provided.

Das Abdeckelement kann auch eine Abdichtungswirkung für das Fahrzeugheizgerät erzielen, wenn es elastisch verformbar ist. Vorzugsweise ist dann eine Vorsprunghöhe des wenigstens einen Abstützvorsprungs über die Sockelfläche kleiner als eine Dicke des nicht verformten Abdeckelements zwischen der Sockel-Anlagefläche und der Trägerstruktur-Anlagefläche. Auf diese Art und Weise kann das elastisch verformbare Abdeckelement beim Festlegen des Fahrzeugheizgeräts an der Trägerstruktur leicht verformt werden, so dass es insbesondere auch die ihm zugedachte Dichtfunktion zuverlässig erfüllen kann. Da die Abstützung dennoch auch über den wenigstens einen Abstützvorsprung realisiert ist, definiert dieser die Positionierung des Montagesockels bezüglich der Trägerstruktur unabhängig vom Vorhandensein bzw. der Verformung des Abdeckelements.The cover member can also achieve a sealing effect for the vehicle heater if it is elastically deformable. A projection height of the at least one support projection over the base surface is then preferably smaller than a thickness of the non-deformed cover element between the base contact surface and the support structure contact surface. In this way, the elastically deformable cover element can be easily deformed when the vehicle heater is fixed to the support structure, so that it can in particular also reliably fulfill the sealing function intended for it. Since the support is nevertheless also implemented via the at least one support projection, this defines the positioning of the mounting base with respect to the support structure independently of the presence or deformation of the cover element.

Ist ein Abstützvorsprung einen Befestigungsbolzen umgebend vorgesehen, beispielsweise als Bestandteil des Montagesockels oder als Bestandteil des Befestigungsbolzens oder am Befestigungsbolzen angebracht, kann wenigstens eine, vorzugsweise jede Abstützelement-Durchgriffsöffnung eine Befestigungsbolzen-Durchgriffsöffnung bilden. Dies vermeidet eine übermäßig große Anzahl an Öffnungen im Abdeckelement.If a supporting projection is provided surrounding a fastening bolt, for example as part of the mounting base or as part of the fastening bolt or attached to the fastening bolt, at least one, preferably each supporting element through-opening can have a Form the mounting bolt reach-through opening. This avoids an excessively large number of openings in the cover element.

Für eine besonders stabile Anbindung an die Trägerstruktur kann der Montagesockel an einem Guss-Bauteil, vorzugsweise einem Wärmetauscher-Bauteil, als integraler Bestandteil vorgesehen sein.For a particularly stable connection to the support structure, the mounting base can be provided as an integral part of a cast component, preferably a heat exchanger component.

Die Erfindung betrifft ferner eine Montageeinheit, umfassend eine Trägerstruktur und ein an der Trägerstruktur festgelegtes Fahrzeugheizgerät mit erfindungsgemäßem Aufbau, wobei der wenigstens eine eine zugeordnete Abstützvorsprung-Durchgriffsöffnung des Abdeckelements durchgreifende Abstützvorsprung mit dem daran bereitgestellten Trägerstruktur-Abstützbereich an der Trägerstruktur abgestützt ist.The invention also relates to an assembly unit, comprising a support structure and a vehicle heater fixed to the support structure and having a structure according to the invention, the at least one support projection reaching through an associated support projection reach-through opening of the cover element being supported on the support structure with the support structure support area provided thereon.

Dabei kann die Trägerstruktur eine Trägerplatte mit einer Abdeckelement-Anlagefläche umfassen.In this case, the support structure can comprise a support plate with a covering element contact surface.

Um eine Befestigung vermittels eines bzw. mehrerer Befestigungsbolzen zu ermöglichen, wird vorgeschlagen, dass in der Trägerplatte in Zuordnung zu jedem Befestigungsbolzen eine Bolzendurchgriffsöffnung vorgesehen ist.In order to enable attachment by means of one or more attachment bolts, it is proposed that a bolt penetration opening be provided in the carrier plate in association with each attachment bolt.

Die vorliegende Erfindung wird nachfolgend mit Bezug auf die beiliegenden Figuren detailliert beschrieben. Es zeigt:

Fig. 1
eine perspektivische Ansicht eines Fahrzeugheizgeräts mit einem einer Öffnung in einem Heizgerätegehäuse zugeordneten elastischen Abdeckelement;
Fig. 2
das Heizgerät der Fig. 1 in Verbindung mit einer dieses aufnehmenden Trägerstruktur in einem Fahrzeug;
Fig. 3
das an der Trägerstruktur festgelegte Fahrzeugheizgerät;
Fig. 4
eine Ansicht des an der Trägerstruktur festgelegten Fahrzeugheizgeräts in Blickrichtung IV in Fig. 2;
Fig. 5
eine Teil-Längsschnittansicht des an der Trägerstruktur festgelegten Fahrzeugheizgeräts, geschnitten längs einer Linie V-V in Fig. 4;
Fig. 6
einen zur Festlegung des Fahrzeugheizgeräts an der Trägerstruktur einsetzbaren, erfindungsgemäß aufgebauten Befestigungsbolzen mit einem daran vorgesehenen Abstützvorsprung;
Fig. 7
eine Längsschnittansicht eines aus dem Stand der Technik bekannten Fahrzeugheizgeräts.
The present invention is described in detail below with reference to the attached figures. It shows:
1
a perspective view of a vehicle heater with an opening in a heater housing associated elastic cover;
2
the heater the 1 in connection with a supporting structure receiving this in a vehicle;
3
the vehicle heater fixed to the support structure;
4
a view of the vehicle heater fixed to the support structure in viewing direction IV in 2 ;
figure 5
a partial longitudinal sectional view of the vehicle heater fixed to the support structure, cut along a line VV in 4 ;
6
a fastening bolt constructed according to the invention, which can be used to fix the vehicle heater to the support structure and has a supporting projection provided thereon;
7
a longitudinal sectional view of a vehicle heater known from the prior art.

Bevor im Folgenden mit Bezug auf die Fig. 1 bis 6 die Ausgestaltung eines Fahrzeugheizgeräts, insbesondere eine Montageanordnung desselben, detailliert beschrieben wird, ist darauf hinzuweisen, dass der grundsätzliche Aufbau des Fahrzeugheizgeräts dem in Fig. 7 dargestellten und mit Bezug auf die Fig. 7 beschriebenen Aufbau entsprechen kann. Es wird diesbezüglich daher auf die Ausführungen zur Fig. 7 verwiesen.Before in the following with reference to the Figures 1 to 6 the design of a vehicle heater, in particular a mounting arrangement of the same, is described in detail, it should be pointed out that the basic structure of the vehicle heater corresponds to that in 7 illustrated and with reference to the 7 can correspond to the structure described. In this regard, therefore, reference is made to the statements on 7 referred.

Die Fig. 1 zeigt das Fahrzeugheizgerät 10 in perspektivischer Ansicht. An der Unterseite des Heizgerätegehäuses 12 ist die den Montagesockel 44 aufnehmende Öffnung 42 im Heizgerätegehäuse 12 zu erkennen. Wie in Fig. 5 deutlich zu erkennen, ist im Bereich dieser Öffnung 42 im Heizgerätegehäuse 12 ein die Öffnung 42 umgebender und nach außen hervorstehender Randbereich 50 gebildet, welcher von einem Randbereich 52 des im Wesentlichen plattenartig ausgebildeten Abdeckelements 46 außen umgriffen ist, so dass auch im Bereich dieser einander gegenseitig überlappenden Randbereiche 50, 52 ein gasdichter Abschluss erzielt ist. Der auch bei dieser Ausgestaltung beispielsweise als integraler Bestandteil des als Gussteil bereitgestellten Wärmetauschergehäuses 18 ausgebildete Montagesockel 44 stellt eine Sockelfläche 54 bereit, an welcher das im Wesentlichen plattenartig ausgebildete Abdeckelement 46 mit einer Sockel-Anlagefläche 56 im Wesentlichen flächig anliegt. An seiner von der Sockel-Anlagefläche 56 abgewandten Seite stellt das Abdeckelement 54 eine Trägerstruktur-Anlagefläche 58 bereit, mit welcher das Abdeckelement 46 an einer Abdeckelement-Anlagefläche 60 einer beispielsweise eine Trägerplatte 62 umfassenden Trägerstruktur 61 anliegt bzw. abgestützt ist. Es ist darauf hinzuweisen, dass diese Trägerstruktur 61 beispielsweise ein Karosserieteil eines Fahrzeugs sein kann, welches in demjenigen Bereich, in welchem das Fahrzeugheizgerät 10 an dieser Trägerstruktur 61 festzulegen ist, die im Wesentlichen ungekrümmte Abdeckelement-Anlagefläche 60 bereitstellt. Auch die Sockelfläche 54 bzw. die Sockel-Anlagefläche 56 und die Trägerstruktur-Anlagefläche 58 sind vorzugsweise im Wesentlichen ungekrümmt ausgebildet.the 1 shows the vehicle heater 10 in a perspective view. The opening 42 in the heater housing 12 accommodating the mounting base 44 can be seen on the underside of the heater housing 12 . As in figure 5 As can be clearly seen, in the area of this opening 42 in the heater housing 12 there is an outwardly protruding edge area 50 surrounding the opening 42, which is surrounded on the outside by an edge area 52 of the essentially plate-like cover element 46, so that in the area of these too each other overlapping edge regions 50, 52 a gas-tight seal is achieved. The mounting base 44 embodied in this configuration, for example, as an integral part of the heat exchanger housing 18 provided as a cast part, provides a base surface 54 on which the essentially plate-like cover element 46 with a base contact surface 56 bears essentially flat. On its side facing away from the base contact surface 56 provides the cover element 54 has a support structure contact surface 58 ready, with which the cover element 46 abuts or is supported on a cover element contact surface 60 of a support structure 61 comprising a support plate 62, for example. It should be noted that this support structure 61 can be a body part of a vehicle, for example, which provides the essentially uncurved covering element contact surface 60 in the area in which the vehicle heater 10 is to be fixed to this support structure 61 . The base surface 54 or the base contact surface 56 and the support structure contact surface 58 are also preferably designed to be essentially non-curved.

Zur Festlegung des Fahrzeugheizgeräts 10 an der Trägerstruktur 64 umfasst die insbesondere auch den Montagesockel 44 und das Abdeckelement 46 umfassende Montageanordnung 63 vier beispielsweise in rechteckiger Struktur angeordnete Befestigungsbolzen 64. Die Befestigungsbolzen 64 sind im dargestellten Beispiel als Außengewindebolzen ausgebildet und sind mit einem Außengewindebereich 66 in als Innengewindeöffnungen ausgebildete Befestigungsbolzen-Aufnahmeöffnungen 65 eingeschraubt. Mit einem über den Sockelbereich 44 bzw. dessen Sockelfläche 54 hervorstehenden Außengewindebereich 68 durchgreifen die Befestigungsbolzen 64 Bolzendurchgriffsöffnungen 70 im Abdeckelement 46 und Bolzendurchgriffsöffnungen 72 in der Trägerplatte 62 der Trägerstruktur 64. An der vom Fahrzeugheizgerät 10 abgewandten Seite der Trägerstruktur 61 ist auf jeden Befestigungsbolzen 64 eine Mutter 74 geschraubt, so dass durch festes Anziehen der Muttern 74 das Fahrzeugheizgerät 10 im Bereich der Befestigungsbolzen 64 an der Trägerstruktur 61 festgelegt wird.To fix the vehicle heater 10 to the support structure 64, the mounting assembly 63, which includes in particular the mounting base 44 and the cover element 46, includes four fastening bolts 64 arranged, for example, in a rectangular structure Internally threaded openings trained mounting bolt receiving openings 65 screwed. With an externally threaded area 68 protruding beyond base area 44 or its base surface 54, fastening bolts 64 pass through bolt passage openings 70 in cover element 46 and bolt passage openings 72 in carrier plate 62 of carrier structure 64. On the side of carrier structure 61 facing away from vehicle heater 10, there is one on each fastening bolt 64 Screwed nut 74 so that the vehicle heater 10 is fixed to the support structure 61 in the area of the fastening bolts 64 by tightening the nuts 74 .

Am Montagesockel 44 ist in Zuordnung zu jedem der Befestigungsbolzen 64 ein über die Sockelfläche 54 hervorstehender, einen jeweiligen Befestigungsbolzen 64 ringartig umgebender Abstützvorsprung 76 vorgesehen. Jeder dieser Abstützvorsprünge 76 ist vorzugsweise als integraler Bestandteil des Montagesockels 44 und somit auch des Wärmetauschergehäuses 18 bereitgestellt und weist einen der Trägerstruktur 61 zugewandten bzw. an dieser anliegenden, einen jeweiligen Befestigungsbolzen 64 ringartig umgebenden Trägerstruktur-Abstützbereich 78 auf. Die die Befestigungsbolzen 64 mit Abstand zu deren Außenoberfläche umgebenden, ringartigen Abstützvorsprünge 76 greifen in die von den Befestigungsbolzen 64 durchsetzten Bolzendurchgriffsöffnungen 70 des Abdeckelements 46 ein, so dass diese auch in Zuordnung zu jedem Abstützvorsprung 76 eine Abstützvorsprung-Durchgriffsöffnung 80 bereitstellen.On the mounting base 44 , in association with each of the fastening bolts 64 , a supporting projection 76 is provided which protrudes beyond the base surface 54 and surrounds a respective fastening bolt 64 in the manner of a ring. Each of these support projections 76 is preferably provided as an integral part of the mounting base 44 and thus also of the heat exchanger housing 18 and has a support structure 78 facing or abutting on the support structure 61 and surrounding a respective fastening bolt 64 in a ring-like manner. The fastening bolts 64 at a distance from them Ring-like supporting projections 76 surrounding the outer surface engage in the bolt passage openings 70 of the cover element 46 through which the fastening bolts 64 pass, so that these also provide a supporting projection passage opening 80 in association with each supporting projection 76 .

Die Vorsprunghöhe der Abstützvorsprünge 76 über die Sockelfläche 54 des Montagesockels 44 ist derart gewählt, dass sie kleiner ist, als die Dicke des nicht komprimierten bzw. verformten Abdeckelements 46 zwischen seiner Sockelanlagefläche 56 und seiner Trägerstruktur-Anlagefläche 58. Beim Anziehen der Muttern 74 zum Festlegen des Heizgeräts 10 an der Trägerstruktur 64 wird das elastisch verformbare Abdeckelement 46 zwischen seinen beiden Anlagefläche 56, 58 komprimiert, wobei insbesondere bei Aufbau des Abdeckelements 46 aus grundsätzlich inkompressiblem Material eine Ausweichbewegung des Materials des Abdeckelements 46 in seitlicher Richtung, insbesondere in Richtung zu dem im Abdeckelement 46 vorgesehenen Öffnungen erfolgt. Dies sind insbesondere die Bolzendurchgriffsöffnungen 70 sowie Öffnungen 82, 84 für den Verbrennungslufteinlassstutzen 24 des Verbrennungsluftgebläses bzw. eine Öffnung 84 für den Abgasauslassstutzen 32 des Wärmetauschergehäuses 18 sowie auch eine Öffnung 86 für den Durchtritt der Brennstoffleitung 20. Somit wird durch das Einspannen des Abdeckelements 46 dieses nicht nur fest zwischen dem Montagesockel 44 und der Trägerstruktur 61 gehalten, sondern es wird auch gegen die Außenumfangsfläche der darin vorgesehene 10 Öffnungen durchsetzenden Organe gepresst, so dass überall dort ein gasdichter Abschluss erzeugt wird.The projection height of the support projections 76 over the base surface 54 of the mounting base 44 is selected such that it is smaller than the thickness of the uncompressed or deformed cover element 46 between its base contact surface 56 and its support structure contact surface 58. When tightening the nuts 74 to set of heating device 10 on support structure 64, elastically deformable cover element 46 is compressed between its two contact surfaces 56, 58, with a deflection movement of the material of cover element 46 in the lateral direction, particularly in the direction of the im Cover 46 provided openings takes place. These are, in particular, the bolt passage openings 70 and openings 82, 84 for the combustion air inlet connection 24 of the combustion air fan or an opening 84 for the exhaust gas outlet connection 32 of the heat exchanger housing 18 as well as an opening 86 for the passage of the fuel line 20. Thus, by clamping the cover element 46 this not only held firmly between the mounting base 44 and the support structure 61, but it is also pressed against the outer peripheral surface of the organs provided therein penetrating openings, so that a gas-tight seal is produced everywhere there.

Beim Anziehen der Muttern 74 kommen die Abstützvorsprünge 76 mit ihren Trägerstruktur-Abstützbereichen 78 in Anlage an der Trägerplatte 62. Somit ist durch diese Abstützung eine definierte Positionierung des Montagesockels 44 und somit des ganzen Fahrzeugheizgeräts bezüglich der Trägerstruktur 61 vorgegeben, und zwar unabhängig von der Einspannung des zwischen dem Montagesockel 44 und der Trägerstruktur 64 gehaltenen Abdeckelements 46. Dieses erfüllt im Wesentlichen nur noch die Aufgabe des Erzeugens eines gasdichten Abschlusses. Die Abstützkraftvermittlung zwischen der Trägerstruktur 61 und dem Fahrzeugheizgerät 10 erfolgt unter Vorgabe einer definierten Positionierung des Fahrzeugheizgeräts im Wesentlichen über die Abstützvorsprünge 76. Die Gefahr, dass bei Krafteinwirkung auf das Fahrzeugheizgerät 10 dieses aufgrund der Verformbarkeit des Abdeckelements 46 eine Bewegung bezüglich der Trägerstruktur 61 ausführen könnte, ist dadurch eliminiert. Das Fahrzeugheizgerät 10 ist im Bereich des Montagesockels 44 bezüglich der Trägerstruktur 64 auf Block verschraubt. Es können damit auch keine die Befestigungsbolzen 64 übermäßig belastenden Querkräfte auf diese einwirken, da eine Belastung der Befestigungsbolzen 64 im Wesentlichen nur in Richtung von deren Längsachse erzeugt wird. Auch ist gewährleistet, dass durch eine definierte Einspannung des Abdeckelements 46 zwischen der Trägerstruktur 61 und dem Montagesockel 44 eine durch zu starkes Anziehen der Muttern 74 hervorgerufene übermäßige Belastung oder lokal unterschiedliche Belastungen im Abdeckelement 46 nicht auftreten können. Ferner wirken die Abstützvorsprünge 76 exakt dort, wo die Verspannung zwischen dem Montagesockel 44 und der Trägerstruktur 61 erzeugt wird, nämlich im Bereich der Befestigungsbolzen 64 bzw. diese umgebend. Keiner der Befestigungsbolzen 64 kann daher auf den Montagesockel 44 eine Kraft ausüben, die zu einer plastischen Verformung oder Verbiegung oder einer entsprechenden Krafteinwirkung auf diesen führen könnte.When the nuts 74 are tightened, the support projections 76 come into contact with their support structure support areas 78 on the support plate 62. This support therefore defines a defined positioning of the mounting base 44 and thus of the entire vehicle heater with respect to the support structure 61, regardless of the clamping of the cover element 46 held between the mounting base 44 and the support structure 64. This essentially only fulfills the task of creating a gas-tight seal. The mediation of the supporting force between the support structure 61 and the vehicle heater 10 takes place by specifying a defined positioning of the vehicle heater in the Essentially via the support projections 76. The risk that, when force is applied to the vehicle heater 10, this could move relative to the support structure 61 due to the deformability of the cover element 46 is thereby eliminated. The vehicle heater 10 is bolted to the support structure 64 in the area of the mounting base 44 with respect to the block. It is therefore also not possible for lateral forces that excessively load the fastening bolts 64 to act on them, since a load on the fastening bolts 64 is essentially only generated in the direction of their longitudinal axis. It is also ensured that a defined clamping of the cover element 46 between the support structure 61 and the mounting base 44 caused by excessive tightening of the nuts 74 or locally different loads in the cover element 46 cannot occur. Furthermore, the supporting projections 76 act exactly where the tension between the mounting base 44 and the support structure 61 is generated, namely in the area of the fastening bolts 64 or surrounding them. Therefore, none of the fastening bolts 64 can exert a force on the mounting base 44 that could lead to plastic deformation or bending or a corresponding force effect on it.

Mit Bezug auf die Fig. 6 wird eine bei einem erfindungsgemäß aufgebauten Fahrzeugheizgerät vorzusehende Ausgestaltung eines derartigen Abstützvorsprungs 76' beschrieben. Dieser ist einen schematisch dargestellten Befestigungsbolzen 64' umgebend angeordnet. Der Befestigungsbolzen 64' kann beispielsweise wieder die beiden Außengewindebereiche 66', 68' aufweisen. Der Abstützvorsprung 76' kann als den Befestigungsbolzen 64' umgebender und bezüglich dessen Längsachse radial hervorspringender Bund ausgebildet sein, der an einer seiner beiden Stirnflächen den Trägerstruktur-Abstützbereich 78' bereitstellt. Dabei kann der Abstützvorsprung 76' mit dem Befestigungsbolzen 64' einstückig ausgebildet sein, kann beispielsweise aber auch als Mutter oder dergleichen diesen aufgeschraubt sein. Beim Einschrauben eines derartigen Befestigungsbolzens 64' in eine Befestigungsbolzen-Aufnahmeöffnung 65 kann dieser so weit mit seinem Gewindebereich 66' eingeschraubt werden, bis der Abstützvorsprung 76' in Anlage an der Sockelfläche 54 des Montagesockels 44 kommt. Somit ist gleichzeitig auch eine definierte Einschraubtiefe für den Befestigungsbolzen 64' gewährleistet. Nachfolgend kann mit am Montagesockel 44 angebrachten Befestigungsbolzen 64' das Fahrzeugheizgerät 10 in der vorangehend beschriebenen Art und Weise an der Trägerstruktur 61 festgelegt werden.With reference to the 6 an embodiment of such a support projection 76' to be provided in a vehicle heater constructed according to the invention is described. This is arranged surrounding a fastening bolt 64 shown schematically. The fastening bolt 64' can, for example, again have the two externally threaded areas 66', 68'. The supporting projection 76′ can be designed as a collar which surrounds the fastening bolt 64′ and protrudes radially with respect to its longitudinal axis and which provides the carrier structure supporting region 78′ on one of its two end faces. The supporting projection 76' can be designed in one piece with the fastening bolt 64', but can also be screwed onto it, for example, as a nut or the like. When such a fastening bolt 64' is screwed into a fastening bolt receiving opening 65, its threaded area 66' can be screwed in until the supporting projection 76' comes into contact with the base surface 54 of the mounting base 44. Thus, at the same time a defined screw-in depth for the fastening bolt 64' is ensured. The vehicle heater 10 can then be fixed to the support structure 61 in the manner described above using fastening bolts 64 ′ attached to the mounting base 44 .

Abschließend ist darauf hinzuweisen, dass insbesondere mit Hinblick auf die Ausgestaltung der Abstützvorsprünge und die Anzahl bzw. Positionierung derselben verschiedenste Variationen möglich sind. Insbesondere können diese bei Ausgestaltung als Bestandteil des Montagesockels 44 abhängig davon, wo in der Trägerstruktur 61 bzw. dem Abdeckelement 46 Öffnungen gebildet werden können, auch an von der Positionierung der Befestigungsbolzen 64 abweichenden Positionen vorgesehen sein und von der Sockelfläche 54 hervorstehen. In Zuordnung zu derartigen, getrennt von den Befestigungsbolzen 64 ausgebildeten Abstützvorsprüngen können dann in dem Abdeckelement 46 diesen zugeordnete Abstützvorsprung-Durchgriffsöffnungen 80 gebildet werden. Es ist abschließend auch darauf hinzuweisen, dass in dem Abdeckelement 46 auch Öffnungen gebildet werden können, welche beispielsweise mehrere Befestigungsbolzen 64 oder einen oder mehrere Befestigungsbolzen und einen Stutzen bzw. auch die Brennstoffleitung, ggf. auch einen getrennt von dem Befestigungsbolzen ausgebildeten Abstützvorsprung, aufnehmen können.Finally, it should be pointed out that the most varied of variations are possible, particularly with regard to the configuration of the supporting projections and the number or positioning thereof. In particular, when configured as part of the mounting base 44 , depending on where openings can be formed in the support structure 61 or the cover element 46 , they can also be provided at positions that deviate from the positioning of the fastening bolts 64 and protrude from the base surface 54 . In association with such support projections, which are formed separately from the fastening bolts 64 , support projection passage openings 80 assigned to them can then be formed in the cover element 46 . Finally, it should also be pointed out that openings can also be formed in cover element 46, which can accommodate, for example, a plurality of fastening bolts 64 or one or more fastening bolts and a socket or also the fuel line, possibly also a supporting projection formed separately from the fastening bolt .

Claims (9)

  1. Vehicle heater comprising a mounting arrangement (63) for fixedly mounting the vehicle heater (10) to a support structure (61), the mounting arrangement (63) comprising:
    - a mounting base (44) with a base surface (54) to be positioned facing a support structure (61),
    - a cover element (46) to be positioned overlapping the base surface (54) and having a base abutment surface (56) to be positioned facing the base surface (54) and a support structure abutment surface (58) to be positioned facing a support structure (61),
    - at least one support projection (76) projecting above the base surface (56) and providing a support structure carrier area (78), wherein a support projection engagement opening (80) is provided in the cover element (46) in association with the at least one support projection (76),
    - a plurality of mounting bolts (64) projecting or to be projectingly positioned on the mounting base (44) beyond the base surface (54), wherein a bolt passage opening (70) is provided in the cover element (46) in association with each mounting bolt (64),
    characterized in that at least one support projection (76') is formed on a mounting bolt (64').
  2. Vehicle heater according to claim 1, characterized in that a plurality of support projections (76) are provided.
  3. Vehicle heater according to claim 1 or 2, characterized in that the cover element (46) is resiliently deformable, and in that a projection height of the at least one support projection (76) above the base surface (54) is less than a thickness of the undeformed cover element (46) between the base abutment surface (56) and the support structure abutment surface (58).
  4. Vehicle heater according to any one of claims 1-3, characterized in that each support projection (76') is formed on a mounting bolt (64').
  5. Vehicle heater according to any one of claims 1-4, characterized in that at least one, preferably each, support element passage opening (80) forms a fastening bolt passage opening (70).
  6. Vehicle heater according to any one of the preceding claims, characterized in that the mounting base (44) is provided on a cast component, preferably a heat exchanger component, as an integral part.
  7. Assembly unit comprising a support structure (61) and a vehicle heater (10) fixed to the support structure (61) according to any one of the preceding claims, wherein the support projection (76') engaging through at least one associated support projection passage opening (80) of the cover element (46) is supported on the support structure (61) with the support structure carrier area (78) provided thereon.
  8. Assembly unit according to claim 7, characterized in that the support structure (61) comprises a support plate (62) with a cover element abutment surface (62).
  9. Mounting unit according to claim 7 or 8, characterized in that a bolt passage opening (72) is provided in the support plate (62) in association with each mounting bolt (64).
EP20163297.3A 2019-04-29 2020-03-16 Vehicle heating device Active EP3734153B1 (en)

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PL20163297T PL3734153T3 (en) 2019-04-29 2020-03-16 Vehicle heating device

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DE102019110949.3A DE102019110949A1 (en) 2019-04-29 2019-04-29 Vehicle heater

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DE102020105941A1 (en) 2020-03-05 2021-09-09 Eberspächer Climate Control Systems GmbH Process for the production of a metal cast heat exchanger housing for a vehicle heater

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1705669U (en) * 1955-01-11 1955-08-25 Koppers Gmbh Heinrich FACTION COLUMN.
DE3229365A1 (en) * 1981-09-16 1983-04-07 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Vehicle heater
DE4110362C2 (en) * 1990-03-28 1997-01-23 Hubert Dr Ing Brendel Stiffness-optimized screw connection for increased safety against impulsive tensile loads
DE10005455C2 (en) * 2000-02-08 2003-10-16 Reinz Dichtungs Gmbh & Co Kg Metallic flat gasket
DE10027117A1 (en) * 2000-05-31 2001-12-06 Eberspaecher J Gmbh & Co Housing for motor vehicle's heater unit has pipe connectors with fitting aid on generated circumferential face and with elastic axial locking barbs which after fitting of connector in hole in wall spread to lock behind wall
DE202004015442U1 (en) * 2004-10-05 2006-02-09 J. Eberspächer GmbH & Co. KG Controller for vehicle heater and air conditioner, has temperature sensor for measuring air from air blower of vehicle heater, and housing with locking portion for locking temperature sensor in flexible line
DE102006056370A1 (en) * 2006-11-29 2008-06-05 J. Eberspächer GmbH & Co. KG vehicle heater

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