EP3317543B1 - Pump housing having a fastening structure - Google Patents

Pump housing having a fastening structure Download PDF

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Publication number
EP3317543B1
EP3317543B1 EP15734623.0A EP15734623A EP3317543B1 EP 3317543 B1 EP3317543 B1 EP 3317543B1 EP 15734623 A EP15734623 A EP 15734623A EP 3317543 B1 EP3317543 B1 EP 3317543B1
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EP
European Patent Office
Prior art keywords
housing part
coolant pump
electric motor
vehicle
fastening
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
EP15734623.0A
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German (de)
French (fr)
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EP3317543A1 (en
Inventor
Stephan Schreckenberg
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.)
Pierburg Pump Technology GmbH
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Pierburg Pump Technology GmbH
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Publication date
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Publication of EP3317543A1 publication Critical patent/EP3317543A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F01P2005/125—Driving auxiliary pumps electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid pumps

Definitions

  • the invention relates to an electric motor vehicle coolant pump (motor vehicle coolant pump) with a pump housing which has at least one flow housing part and a separately designed motor housing part, the flow housing part having a spiral flow channel having an axial inlet and a tangential outlet, and a rotatably mounted fluid delivery element at least partially surrounds, and the motor housing part at least partially surrounds an electric drive motor for driving the fluid delivery element, wherein the pump housing can be fixed to a vehicle structure via a fastening structure.
  • a pump housing which has at least one flow housing part and a separately designed motor housing part, the flow housing part having a spiral flow channel having an axial inlet and a tangential outlet, and a rotatably mounted fluid delivery element at least partially surrounds, and the motor housing part at least partially surrounds an electric drive motor for driving the fluid delivery element, wherein the pump housing can be fixed to a vehicle structure via a fastening structure.
  • Such electric motor vehicle coolant pumps are well known from the prior art and are mainly used to convey a coolant for cooling a vehicle internal combustion engine. Due to the usual structure, such pumps usually have several individual housing parts, such as the flow housing part and the motor housing part, which are mostly rotationally aligned with one another, are fixed to one another via a fixing device and, when installed, form the entire pump housing. The fluidic connection of such a pump to a vehicle usually takes place via separately designed hoses.
  • a vehicle structure such as a vehicle body or an engine block
  • supports or fastening structures are usually provided, which are each arranged separately or in one piece on the individual housing parts of the pump.
  • damping means are mostly provided on the fastening structures.
  • coolant pumps have to be designed individually depending on the vehicle model, in particular with regard to the required pump performance, the specified fluidic connections, the fastening structures and the damping means.
  • the complexity of coordinating the interfaces between the pump and the vehicle increases, which in particular leads to increased expenditure in the manufacture and assembly of the coolant pumps.
  • the invention is therefore based on the object of providing an electric motor vehicle coolant pump which enables a cross-vehicle design and a relatively universal possibility of attachment to a vehicle structure.
  • the fastening structure is arranged on the pump side exclusively on the flow housing part.
  • the interfaces for the fluidic and mechanical connection of the coolant pump to a vehicle structure can be limited solely to the flow housing part, so that the design of the coolant pump can be simplified.
  • the design and specification of the interfaces between the pump and the vehicle can be limited solely to the design of the flow housing part.
  • the motor housing part - depending on the vehicle model and the associated requirements, for example with regard to a model variant and / or pump capacity - can have different designs or sizes and can be manufactured completely independently of the interfaces and connection requirements of the pump on the vehicle.
  • the manufacture and assembly of the coolant pump can be considerably simplified and, as a result, be relatively inexpensive.
  • the fastening structure has at least three fastening points for the selective fastening of the pump housing to the vehicle structure.
  • a fastening point can be understood, for example, as an opening through which a screw extends for fastening. It is particularly preferred that exactly three such fastening points are provided. A relatively stable and secure fixation of the coolant pump on the vehicle structure can thereby be ensured.
  • the attachment points are arranged in a plane parallel to the axis of rotation. This creates a common contact plane with which the fastening structure can rest against a contact surface of the vehicle structure and be fixed in a relatively simple manner.
  • the fastening structure can be a separate component, such as a clamp or a support arm, for example, it being possible for the fastening structure to be individually adapted to the shape of the flow housing part.
  • the fastening structure is advantageously designed in one piece with the flow housing part. As a result, the number of components can be reduced and the coolant pump can be fixed to the vehicle structure in a relatively simple manner.
  • the fastening structure is advantageously arranged in the longitudinal direction parallel to the axis of rotation. This enables a particularly stable and relatively secure fixing of the coolant pump to the vehicle structure.
  • the pump is designed to be relatively space-saving.
  • the fastening structure preferably has a support arm protruding outward from the flow housing part.
  • the support arm advantageously has - in particular at a distal end - an opening or bore through which a screw, rivet, bolt or other fastening element can extend to fasten the support arm to the vehicle structure.
  • the support arm can have an outwardly protruding centering pin for aligning the support arm with respect to the vehicle structure.
  • the support arm can be designed as a flange and have at least one stiffening rib.
  • the stiffening rib can be formed on the flange along its length.
  • the support arm has a particularly high level of stability.
  • the fastening points are particularly preferably arranged in the plane in a right-angled triangle to one another. This is a enables particularly stable fixation of the pump on the vehicle structure, in particular the pump is fixed against tilting and / or twisting.
  • the fastening structure is preferably fixed to the vehicle structure via a force-fit and / or form-fit connection.
  • the fastening structure can in particular be fixed releasably on the vehicle structure, particularly preferably by means of a screw. This is particularly advantageous when repairing or replacing the pump.
  • the fastening structure advantageously has at least one vibration damper, preferably at a fastening point.
  • the vibration damper can in particular be suitable for dampening undesired vibrations of the coolant pump and thus preventing the pump from being loosened on the vehicle structure and preventing the development of noise.
  • the vibration damper is preferably designed as an elastomer ring which rests on the fastening structure in an opening, such as a fastening point.
  • the elastomer ring for example a rubber ring, can be inserted or inserted into an opening or recess provided for this purpose in the fastening structure. This enables relatively reliable damping of the coolant pump and simplifies the installation of the coolant pump.
  • the flow housing part preferably has a centering structure for aligning the motor housing part with respect to the flow housing part.
  • the centering structure can be a shoulder or a recess into which, for example, a pin can be inserted.
  • a shoulder is formed on the flow housing part, on which the motor housing part is exclusively rotatory Alignment can be used.
  • a pump rotor carrying the fluid conveying element can be inserted into a shoulder of the flow housing part for storage and can be rotatably supported on it.
  • the coolant pump can thus be of relatively compact design.
  • the flow housing part preferably has an axial and / or radial gap sealing surface to the fluid delivery element.
  • FIG. 1 shows an electric motor vehicle coolant pump 1 in the assembled state 100.
  • the coolant pump 1 is mechanically fixed with a fastening structure 5 on a vehicle structure 6, which is only shown purely schematically.
  • the coolant pump 1 has a pump housing 2, which in the present case comprises a flow housing part 3 and a separately designed motor housing part 4.
  • a spiral-shaped flow channel 30 and a rotatable fluid conveying element 33 located therein are arranged inside the flow housing part 3, which in FIG Figure 1 is shown by a breakout representation.
  • the flow channel 30 has an axial inlet 31 and a tangential outlet 32. That Fluid delivery element 33 is mounted on a drive shaft 11 which extends into motor housing part 4.
  • a drive motor 40 for driving the conveying element 33 via the shaft 11 is arranged within the motor housing part 4, which in FIG Figure 1 is also shown in the form of a breakout.
  • the flow housing part 3 and the motor housing part 4 are aligned with one another and fixed to one another via a plurality of screw connections 21.
  • the screw connection 21 is designed to be stable in such a way that the motor housing part 4 and the components arranged therein can be carried by the flow housing part 3 without further support.
  • a fluidic connection between the coolant pump 1 and the vehicle takes place via a feed channel 61, also not shown, at the inlet 31 and discharge channel 62 to the outlet 32 of the pump-side flow channel 30.
  • the coolant pump 1 is mechanically fixed to the vehicle structure 6 exclusively via the fastening structure 5, which in the present case - as in particular in FIG Figure 2 recognizable - consists of two support arms 50.
  • the support arm is designed as a flange with a stiffening rib 51.
  • the support arm 50 is designed in one piece with the flow housing part 3 and protrudes outward from the flow housing part 3.
  • the support arm 50 has a plurality of bores 52 in each case at a distal end, through which a screw 53 extends in each case for fixing the flow housing part 3 to the vehicle structure 6. With this arrangement, the entire coolant pump 1 can be fixed to the vehicle structure 6.
  • the flow housing part 3 is shown in a non-assembled state.
  • the fastening structure 5 consists of two support arms 50 arranged on the flow housing part 3 and protruding therefrom.
  • the flow housing part 3 On a side facing the drive motor 40, the flow housing part 3 has a centering structure 35 for aligning the motor housing part 4 with respect to the flow housing part 3.
  • the centering structure 35 is in particular a shoulder arranged coaxially with respect to the axis of rotation 10.
  • a seal is also provided on the centering structure 35, by means of which the interior of the pump housing 2 can be sealed off from the environment.
  • the flow housing part 3 On a further shoulder or a contact surface 36 on a side likewise facing the drive motor 40, the flow housing part 3 has an axial and radial gap sealing surface 34 on which the fluid conveying element 33 can be mounted. As a result, a relatively loss-free fluid delivery can take place, so that the efficiency of the coolant pump 1 can be increased.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Description

Die Erfindung betrifft eine elektrische Kraftfahrzeug-Kühlmittelpumpe (Kfz-Kühlmittelpumpe) mit einem Pumpengehäuse, das zumindest ein Strömungsgehäuseteil und ein separat ausgebildetes Motorgehäuseteil aufweist, wobei das Strömungsgehäuseteil einen spiralförmigen Strömungskanal, der einen axialen Einlass und einen tangentialen Auslass aufweist, und ein drehbar gelagertes Fluidförderelement zumindest teilweise umgibt, und das Motorgehäuseteil einen elektrischen Antriebsmotor zum Antreiben des Fluidförderelements zumindest teilweise umgibt, wobei das Pumpengehäuse über eine Befestigungsstruktur an einer Fahrzeugstruktur fixierbar ist.The invention relates to an electric motor vehicle coolant pump (motor vehicle coolant pump) with a pump housing which has at least one flow housing part and a separately designed motor housing part, the flow housing part having a spiral flow channel having an axial inlet and a tangential outlet, and a rotatably mounted fluid delivery element at least partially surrounds, and the motor housing part at least partially surrounds an electric drive motor for driving the fluid delivery element, wherein the pump housing can be fixed to a vehicle structure via a fastening structure.

Derartige elektrische Kfz-Kühlmittelpumpen sind aus dem Stand der Technik hinlänglich bekannt und dienen überwiegend der Förderung eines Kühlmittels zur Kühlung eines Fahrzeug-Verbrennungsmotors. Aufgrund des üblichen Aufbaus weisen solche Pumpen zumeist mehrere einzelne Gehäuseteile auf, wie beispielsweise das Strömungsgehäuseteil und das Motorgehäuseteil, die zumeist rotatorisch zueinander ausgerichtet sind, über eine Fixiereinrichtung zueinander fixiert sind und im montierten Zustand das gesamte Pumpengehäuse bilden. Die fluidische Anbindung einer solchen Pumpe an einem Fahrzeug erfolgt zumeist über separat ausgebildete Schläuche. Zur mechanischen Fixierung bzw. Befestigung der Kühlmittelpumpe an einer Fahrzeugstruktur, wie beispielsweise an einer Fahrzeugkarosserie oder an einem Motorblock, sind üblicherweise Träger oder Befestigungsstrukturen vorgesehen, die jeweils separat oder einstückig an den einzelnen Gehäuseteilen der Pumpe angeordnet sind.Such electric motor vehicle coolant pumps are well known from the prior art and are mainly used to convey a coolant for cooling a vehicle internal combustion engine. Due to the usual structure, such pumps usually have several individual housing parts, such as the flow housing part and the motor housing part, which are mostly rotationally aligned with one another, are fixed to one another via a fixing device and, when installed, form the entire pump housing. The fluidic connection of such a pump to a vehicle usually takes place via separately designed hoses. For mechanical fixation or fastening of the coolant pump to a vehicle structure, such as a vehicle body or an engine block, supports or fastening structures are usually provided, which are each arranged separately or in one piece on the individual housing parts of the pump.

Zur Minderung von Vibrationen und hierdurch hervorgerufener Geräusche sind an den Befestigungsstrukturen zumeist Dämpfungsmittel vorgesehen.In order to reduce vibrations and the noises caused thereby, damping means are mostly provided on the fastening structures.

Typischerweise müssen solche Kühlmittelpumpen je nach Fahrzeugmodell Individuell ausgelegt sein, insbesondere hinsichtlich der geforderten Pumpenleistung, der vorgegebenen fluidischen Anschlüsse, der Befestigungsstrukturen sowie der Dämpfungsmittel. Mit wachsender Anzahl der vorgegebenen Merkmale erhöht sich jedoch die Komplexität des Abstimmens der Schnittstellen zwischen Pumpe und Fahrzeug, welches insbesondere bei der Herstellung und Montage der Kühlmittelpumpen zu einem erhöhten Aufwand führt.Typically, such coolant pumps have to be designed individually depending on the vehicle model, in particular with regard to the required pump performance, the specified fluidic connections, the fastening structures and the damping means. As the number of specified features increases, however, the complexity of coordinating the interfaces between the pump and the vehicle increases, which in particular leads to increased expenditure in the manufacture and assembly of the coolant pumps.

Aus WO 2014/195001 A1 ist eine Kfz-Kühlmittelpumpe mit einem Strömungsgehäuseteil bekannt, das zwei axiale Flüssigkeits-Anschlüsse und in der Ebene der beiden Flüssigkeitsanschlüsse liegende Befestigungspunkte aufweist.the end WO 2014/195001 A1 a motor vehicle coolant pump with a flow housing part is known which has two axial fluid connections and fastening points lying in the plane of the two fluid connections.

Aus US 2014/0023526 A1 ist eine Kfz-Kühlmittelpumpe bekannt, die direkt an dem Motorblock montiert wird, der einen Teil des Strömungsgehäuses bildet.the end US 2014/0023526 A1 a motor vehicle coolant pump is known which is mounted directly on the engine block which forms part of the flow housing.

Der Erfindung liegt daher die Aufgabe zugrunde, eine elektrische Kfz-Kühlmittelpumpe bereitzustellen, die eine fahrzeugmodellübergreifende Auslegung und eine relativ universelle Befestigungsmöglichkeit an einer Fahrzeugstruktur ermöglicht.The invention is therefore based on the object of providing an electric motor vehicle coolant pump which enables a cross-vehicle design and a relatively universal possibility of attachment to a vehicle structure.

Die Lösung der Aufgabe erfolgt erfindungsgemäß durch eine elektrische Kfz-Kühlmittelpumpe mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen, der Beschreibung sowie den Figuren aufgeführt.The object is achieved according to the invention by an electric motor vehicle coolant pump with the features of claim 1. Advantageous configurations and developments of the invention are listed in the subclaims, the description and the figures.

Erfindungsgemäß ist die Befestigungsstruktur pumpenseitig ausschließlich an dem Strömungsgehäuseteil angeordnet. Dadurch können die Schnittstellen zur fluidischen und mechanischen Anbindung der Kühlmittelpumpe an einer Fahrzeugstruktur allein auf das Strömungsgehäuseteil beschränkt werden, so dass die Auslegung der Kühlmittelpumpe vereinfacht werden kann. Insbesondere kann die Auslegung und Spezifizierung der Schnittstellen zwischen Pumpe und Fahrzeug allein auf die Ausgestaltung des Strömungsgehäuseteils beschränkt werden. Dagegen kann das Motorgehäuseteil - je Fahrzeugmodell und den hiermit verbundenen Anforderungen, beispielsweise hinsichtlich einer Modellvariante und/oder Pumpen-Leistung - unterschiedliche Bauformen oder Baugrößen aufweisen und kann vollständig unabhängig von den Schnittstellen und Anbindungsvoraussetzungen der Pumpe an dem Fahrzeug hergestellt werden. Dadurch können die Herstellung und Montage der Kühlmittelpumpe erheblich vereinfacht und in der Folge relativ kostengünstig sein.According to the invention, the fastening structure is arranged on the pump side exclusively on the flow housing part. As a result, the interfaces for the fluidic and mechanical connection of the coolant pump to a vehicle structure can be limited solely to the flow housing part, so that the design of the coolant pump can be simplified. In particular, the design and specification of the interfaces between the pump and the vehicle can be limited solely to the design of the flow housing part. In contrast, the motor housing part - depending on the vehicle model and the associated requirements, for example with regard to a model variant and / or pump capacity - can have different designs or sizes and can be manufactured completely independently of the interfaces and connection requirements of the pump on the vehicle. As a result, the manufacture and assembly of the coolant pump can be considerably simplified and, as a result, be relatively inexpensive.

Die Befestigungsstruktur weist mindestens drei Befestigungspunkte zur punktuellen Befestigung des Pumpengehäuses an der Fahrzeugstruktur auf. Unter einem Befestigungspunkt kann beispielsweise eine Öffnung verstanden werden, durch die zur Befestigung eine Schraube sich erstreckt. Besonders bevorzugt sind genau drei solcher Befestigungspunkte vorgesehen. Dadurch kann eine relativ stabile und sichere Fixierung der Kühlmittelpumpe an der Fahrzeugstruktur gewährleistet werden.The fastening structure has at least three fastening points for the selective fastening of the pump housing to the vehicle structure. A fastening point can be understood, for example, as an opening through which a screw extends for fastening. It is particularly preferred that exactly three such fastening points are provided. A relatively stable and secure fixation of the coolant pump on the vehicle structure can thereby be ensured.

Die Befestigungspunkte sind in einer zur Rotationsachse parallelen Ebene angeordnet. Dadurch ist eine gemeinsame Anlageebene geschaffen, mit der die Befestigungsstruktur in relativ einfacher Weise an einer Anlagefläche der Fahrzeugstruktur anliegen und fixiert sein kann.The attachment points are arranged in a plane parallel to the axis of rotation. This creates a common contact plane with which the fastening structure can rest against a contact surface of the vehicle structure and be fixed in a relatively simple manner.

Grundsätzlich kann die Befestigungsstruktur ein separates Bauteil sein, wie beispielsweise eine Schelle oder ein Tragarm, wobei die Befestigungsstruktur individuell an die Form des Strömungsgehäuseteils angepasst sein kann. Vorteilhafterweise ist die Befestigungsstruktur mit dem Strömungsgehäuseteil einstückig ausgebildet. Dadurch kann die Anzahl der Bauteile verringert werden und die Kühlmittelpumpe an der Fahrzeugstruktur in relativ einfacher Weise festgelegt werden.In principle, the fastening structure can be a separate component, such as a clamp or a support arm, for example, it being possible for the fastening structure to be individually adapted to the shape of the flow housing part. The fastening structure is advantageously designed in one piece with the flow housing part. As a result, the number of components can be reduced and the coolant pump can be fixed to the vehicle structure in a relatively simple manner.

Vorteilhafterweise ist die Befestigungsstruktur in Längserstreckung parallel zur Rotationsachse angeordnet. Dadurch kann eine besonders stabile und relativ sichere Fixierung der Kühlmittelpumpe an der Fahrzeugstruktur ermöglicht werden. Zudem ist die Pumpe dadurch relativ platzsparend aufgebaut.The fastening structure is advantageously arranged in the longitudinal direction parallel to the axis of rotation. This enables a particularly stable and relatively secure fixing of the coolant pump to the vehicle structure. In addition, the pump is designed to be relatively space-saving.

Vorzugsweise weist die Befestigungsstruktur einen von dem Strömungsgehäuseteil nach außen hervorstehenden Tragarm auf. Dadurch kann die Anzahl der Bauteile verringert werden und die Kühlmittelpumpe an der Fahrzeugstruktur in relativ einfacher Weise festgelegt werden. Der Tragarm weist - insbesondere an einem distalen Ende - vorteilhafterweise eine Öffnung bzw. Bohrung auf, durch die zur Befestigung des Tragarms an der Fahrzeugstruktur eine Schraube, ein Niet, ein Bolzen oder ein anderes Befestigungselement sich erstrecken kann. Ferner kann der Tragarm einen nach außen hervorstehenden Zentrierstift zur Ausrichtung der Tragarm gegenüber der Fahrzeugstruktur aufweisen.The fastening structure preferably has a support arm protruding outward from the flow housing part. As a result, the number of components can be reduced and the coolant pump can be fixed to the vehicle structure in a relatively simple manner. The support arm advantageously has - in particular at a distal end - an opening or bore through which a screw, rivet, bolt or other fastening element can extend to fasten the support arm to the vehicle structure. Furthermore, the support arm can have an outwardly protruding centering pin for aligning the support arm with respect to the vehicle structure.

Der Tragarm kann als Flansch ausgebildet sein und zumindest eine Versteifungsrippe aufweisen. Insbesondere kann die Versteifungsrippe in Längserstreckung des Flansches an diesem ausgebildet sein. Dadurch weist der Tragarm eine besonders hohe Stabilität auf.The support arm can be designed as a flange and have at least one stiffening rib. In particular, the stiffening rib can be formed on the flange along its length. As a result, the support arm has a particularly high level of stability.

Besonders bevorzugt sind die Befestigungspunkte in der Ebene in einem rechtwinkligen Dreieck zueinander angeordnet sind. Dadurch ist eine besonders stabile Fixierung der Pumpe an der Fahrzeugstruktur ermöglicht, insbesondere ist die Pumpe gegen ein Kippen und/oder Verdrehen fixiert.The fastening points are particularly preferably arranged in the plane in a right-angled triangle to one another. This is a enables particularly stable fixation of the pump on the vehicle structure, in particular the pump is fixed against tilting and / or twisting.

Vorzugsweise ist die Befestigungsstruktur über eine kraftschlüssige und/oder formschlüssige Verbindung an der Fahrzeugstruktur fixiert. Dadurch kann die Befestigungsstruktur an der Fahrzeugstruktur insbesondere lösbar festgelegt sein, besonders bevorzugt mittels einer Schraube. Dies ist insbesondere bei einer Reparatur oder einem Austausch der Pumpe vorteilhaft.The fastening structure is preferably fixed to the vehicle structure via a force-fit and / or form-fit connection. As a result, the fastening structure can in particular be fixed releasably on the vehicle structure, particularly preferably by means of a screw. This is particularly advantageous when repairing or replacing the pump.

Vorteilhafterweise weist die Befestigungsstruktur mindestens einen Schwingungsdämpfer auf, vorzugsweise an einem Befestigungspunkt. Der Schwingungsdämpfer kann insbesondere geeignet sein, unerwünschte Vibrationen der Kühlmittelpumpe zu dämpfen und somit ein Lösen der Befestigung der Pumpe an der Fahrzeugstruktur sowie eine Geräuschentwicklung zu verhindern.The fastening structure advantageously has at least one vibration damper, preferably at a fastening point. The vibration damper can in particular be suitable for dampening undesired vibrations of the coolant pump and thus preventing the pump from being loosened on the vehicle structure and preventing the development of noise.

Der Schwingungsdämpfer ist bevorzugt als ein Elastomer-Ring ausgebildet, der in einer Öffnung, wie einem Befestigungspunkt, an der Befestigungsstruktur anliegt. Der Elastomer-Ring, beispielsweise ein Gummiring, kann in eine hierfür vorgesehene Öffnung oder Aussparung in der Befestigungsstruktur eingelegt oder eingesetzt sein. Dadurch ist eine relativ sichere Dämpfung der Kühlmittelpumpe ermöglicht und die Montage der Kühlmittelpumpe vereinfacht.The vibration damper is preferably designed as an elastomer ring which rests on the fastening structure in an opening, such as a fastening point. The elastomer ring, for example a rubber ring, can be inserted or inserted into an opening or recess provided for this purpose in the fastening structure. This enables relatively reliable damping of the coolant pump and simplifies the installation of the coolant pump.

Vorzugsweise weist das Strömungsgehäuseteil eine Zentrierstruktur zur Ausrichtung des Motorgehäuseteils gegenüber dem Strömungsgehäuseteil auf. Die Zentrierstruktur kann ein Absatz oder eine Ausnehmung sein, in die beispielsweise ein Stift einsetzbar ist. Vorteilhafterweise ist an dem Strömungsgehäuseteil ein Absatz ausgebildet, an dem das Motorgehäuseteil in ausschließlich einer bestimmten rotatorischen Ausrichtung einsetzbar ist. Ferner kann ein das Fluidförderelement tragender Pumpenrotor zur Lagerung in einen Absatz des Strömungsgehäuseteils eingesetzt und hieran drehbar gelagert sein. Die Kühlmittelpumpe kann dadurch relativ kompakt aufgebaut sein.The flow housing part preferably has a centering structure for aligning the motor housing part with respect to the flow housing part. The centering structure can be a shoulder or a recess into which, for example, a pin can be inserted. Advantageously, a shoulder is formed on the flow housing part, on which the motor housing part is exclusively rotatory Alignment can be used. Furthermore, a pump rotor carrying the fluid conveying element can be inserted into a shoulder of the flow housing part for storage and can be rotatably supported on it. The coolant pump can thus be of relatively compact design.

Das Strömungsgehäuseteil weist bevorzugt eine axiale und/oder radiale Spalt-Dichtfläche zu dem Fluidförderelement auf. Dadurch kann eine relativ verlustfreie Fluidförderung stattfinden, so dass der Wirkungsgrad der Kühlmittelpumpe gesteigert werden kann.The flow housing part preferably has an axial and / or radial gap sealing surface to the fluid delivery element. As a result, a relatively loss-free fluid delivery can take place, so that the efficiency of the coolant pump can be increased.

Nachfolgend wird die Erfindung anhand einer bevorzugten Ausführungsform unter Bezugnahme auf die anliegenden Zeichnungen näher erläutert.

  • Figur 1 zeigt schematisch eine Seitenansicht einer montierten elektrischen Kühlmittelpumpe, und
  • Figur 2 zeigt schematisch eine perspektivische Ansicht eines Strömungsgehäuseteils mit einer Befestigungsstruktur.
The invention is explained in more detail below on the basis of a preferred embodiment with reference to the accompanying drawings.
  • Figure 1 shows schematically a side view of an assembled electric coolant pump, and
  • Figure 2 shows schematically a perspective view of a flow housing part with a fastening structure.

In der Figur 1 ist eine elektrische Kfz-Kühlmittelpumpe 1 im montierten Zustand 100 gezeigt. Insbesondere ist die Kühlmittelpumpe 1 mit einer Befestigungsstruktur 5 an einer nur rein schematisch dargestellten Fahrzeugstruktur 6 mechanisch festgelegt.In the Figure 1 shows an electric motor vehicle coolant pump 1 in the assembled state 100. In particular, the coolant pump 1 is mechanically fixed with a fastening structure 5 on a vehicle structure 6, which is only shown purely schematically.

Die Kühlmittelpumpe 1 weist ein Pumpengehäuse 2 auf, das vorliegend ein Strömungsgehäuseteil 3 und ein separat ausgebildetes Motorgehäuseteil 4 umfasst. Innerhalb des Strömungsgehäuseteils 3 ist ein spiralförmiger Strömungskanal 30 und ein darin befindliches drehbares Fluidförderelement 33 angeordnet, welches in Figur 1 durch eine Ausbruchdarstellung gezeigt ist. Der Strömungskanal 30 weist einen axialen Einlass 31 und einen tangentialen Auslass 32 auf. Das Fluidförderelement 33 ist an einer Antriebswelle 11 gelagert, die sich bis in das Motorgehäuseteil 4 erstreckt. Innerhalb des Motorgehäuseteils 4 ist ein Antriebsmotor 40 zum Antreiben des Förderelements 33 über die Welle 11 angeordnet, welches in Figur 1 ebenfalls in Form eines Ausbruchs gezeigt ist.The coolant pump 1 has a pump housing 2, which in the present case comprises a flow housing part 3 and a separately designed motor housing part 4. A spiral-shaped flow channel 30 and a rotatable fluid conveying element 33 located therein are arranged inside the flow housing part 3, which in FIG Figure 1 is shown by a breakout representation. The flow channel 30 has an axial inlet 31 and a tangential outlet 32. That Fluid delivery element 33 is mounted on a drive shaft 11 which extends into motor housing part 4. A drive motor 40 for driving the conveying element 33 via the shaft 11 is arranged within the motor housing part 4, which in FIG Figure 1 is also shown in the form of a breakout.

An einer Verbindungsstelle 20 sind das Strömungsgehäuseteil 3 und das Motorgehäuseteil 4 zueinander ausgerichtet und über mehrere Schraubverbindungen 21 aneinander fixiert. Die Schraubverbindung 21 ist derart stabil ausgelegt, dass das Motorgehäuseteil 4 und die darin angeordneten Komponenten ohne weitere Unterstützung von dem Strömungsgehäuseteil 3 getragen werden können.At a connection point 20, the flow housing part 3 and the motor housing part 4 are aligned with one another and fixed to one another via a plurality of screw connections 21. The screw connection 21 is designed to be stable in such a way that the motor housing part 4 and the components arranged therein can be carried by the flow housing part 3 without further support.

Eine fluidische Verbindung zwischen der Kühlmittelpumpe 1 und dem nicht näher dargestellten Fahrzeug erfolgt vorliegend über einen ebenfalls nicht näher dargestellten Zuleitungskanal 61 an dem Einlass 31 und Ableitungskanal 62 an den Auslass 32 des pumpenseitigen Strömungskanals 30.In the present case, a fluidic connection between the coolant pump 1 and the vehicle, not shown in detail, takes place via a feed channel 61, also not shown, at the inlet 31 and discharge channel 62 to the outlet 32 of the pump-side flow channel 30.

Eine mechanische Fixierung der Kühlmittelpumpe 1 an der Fahrzeugstruktur 6 erfolgt ausschließlich über die Befestigungsstruktur 5, die im vorliegenden Fall - wie insbesondere in Figur 2 erkennbar - aus zwei Tragarmen 50 besteht. Der Tragarm ist vorliegend jeweils als ein Flansch mit einer Versteifungsrippe 51 ausgebildet. Der Tragarm 50 ist jeweils einstückig mit dem Strömungsgehäuseteil 3 ausgebildet und steht von dem Strömungsgehäuseteil 3 nach außen hin hervor. Ferner weist der Tragarm 50 jeweils an einem distalen Ende mehrere Bohrungen 52 auf, durch die sich jeweils eine Schraube 53 zur Festlegung des Strömungsgehäuseteils 3 an der Fahrzeugstruktur 6 erstreckt. Durch diese Anordnung kann die gesamte Kühlmittelpumpe 1 an der Fahrzeugstruktur 6 fixiert werden.The coolant pump 1 is mechanically fixed to the vehicle structure 6 exclusively via the fastening structure 5, which in the present case - as in particular in FIG Figure 2 recognizable - consists of two support arms 50. In the present case, the support arm is designed as a flange with a stiffening rib 51. The support arm 50 is designed in one piece with the flow housing part 3 and protrudes outward from the flow housing part 3. Furthermore, the support arm 50 has a plurality of bores 52 in each case at a distal end, through which a screw 53 extends in each case for fixing the flow housing part 3 to the vehicle structure 6. With this arrangement, the entire coolant pump 1 can be fixed to the vehicle structure 6.

In der Figur 2 ist das Strömungsgehäuseteil 3 in einem nicht montierten Zustand gezeigt. Wie in Figur 2 besonders deutlich zu erkennen ist, besteht die Befestigungsstruktur 5 aus zwei an dem Strömungsgehäuseteil 3 angeordneten und von diesem hervorstehenden Tragarmen 50.In the Figure 2 the flow housing part 3 is shown in a non-assembled state. As in Figure 2 As can be seen particularly clearly, the fastening structure 5 consists of two support arms 50 arranged on the flow housing part 3 and protruding therefrom.

An einer dem Antriebsmotor 40 zugewandten Seite weist das Strömungsgehäuseteil 3 eine Zentrierstruktur 35 zur Ausrichtung des Motorgehäuseteils 4 gegenüber dem Strömungsgehäuseteil 3 auf. Die Zentrierstruktur 35 ist vorliegend insbesondere ein zur Rotationsachse 10 koaxial angeordneter Absatz. An der Zentrierstruktur 35 ist zudem eine nicht näher dargestellte Dichtung vorgesehen, durch die der Innenraum des Pumpengehäuses 2 gegenüber der Umgebung abgedichtet werden kann.On a side facing the drive motor 40, the flow housing part 3 has a centering structure 35 for aligning the motor housing part 4 with respect to the flow housing part 3. In the present case, the centering structure 35 is in particular a shoulder arranged coaxially with respect to the axis of rotation 10. A seal, not shown in detail, is also provided on the centering structure 35, by means of which the interior of the pump housing 2 can be sealed off from the environment.

An einem weiteren Absatz bzw. einer Anlagefläche 36 einer ebenfalls dem Antriebsmotor 40 zugewandten Seite weist das Strömungsgehäuseteil 3 eine axiale und radiale Spalt-Dichtfläche 34 auf, an der das Fluidförderelement 33 gelagert werden kann. Dadurch kann eine relativ verlustfreie Fluidförderung stattfinden, so dass der Wirkungsgrad der Kühlmittelpumpe 1 gesteigert werden kann.On a further shoulder or a contact surface 36 on a side likewise facing the drive motor 40, the flow housing part 3 has an axial and radial gap sealing surface 34 on which the fluid conveying element 33 can be mounted. As a result, a relatively loss-free fluid delivery can take place, so that the efficiency of the coolant pump 1 can be increased.

Es sollte deutlich sein, dass der Hauptanspruch nicht auf die beschriebenen Ausführungsbeispiele begrenzt ist.It should be clear that the main claim is not limited to the exemplary embodiments described.

BezugszeichenlisteList of reference symbols

11
Kfz-KühlmittelpumpeCar coolant pump
1010
RotationsachseAxis of rotation
1111
Antriebswelledrive shaft
22
PumpengehäusePump housing
2020th
GehäuseverbindungHousing connection
33
StrömungsgehäuseteilFlow housing part
3030th
StrömungskanalFlow channel
3131
Einlassinlet
3232
AuslassOutlet
3333
FluidförderelementFluid delivery element
3434
Spalt-DichtflächeGap sealing surface
3535
ZentrierstrukturCentering structure
3636
AnlageflächeContact surface
44th
MotorgehäuseteilMotor housing part
4040
AntriebsmotorDrive motor
55
BefestigungsstrukturFastening structure
5050
Tragarm, FlanschSupport arm, flange
5151
VersteifungsrippeStiffening rib
5252
Öffnung, BohrungOpening, drilling
52a52a
Befestigungspunkt, BefestigungselementFastening point, fastening element
52b52b
Befestigungspunkt, BefestigungselementFastening point, fastening element
52c52c
Befestigungspunkt, BefestigungselementFastening point, fastening element
5353
Schraubescrew
5555
SchwingungsdämpferVibration damper
66th
FahrzeugstrukturVehicle structure
6161
ZuleitungskanalSupply duct
6262
AbleitungskanalDrainage channel
100100
montierter Zustandassembled condition

Claims (11)

  1. Electric motor-vehicle coolant pump (1) comprising a pump housing (2) which has at least a flow housing part (3) and a separate motor housing part (4), wherein
    the flow housing part (3) comprises a spiral flow channel (30), which has an axial inlet (31), and at least partly surrounds a rotatably supported fluid-conveying element (33),
    the motor housing part (4) surrounds an electric drive motor (40) for driving the fluid-conveying element (33),
    the pump housing (2) can be fastened to a vehicle structure (6) by means of a fastening structure (5),
    on the pump side, the fastening structure (5) is arranged only on the flow housing part (3)
    characterized in that
    the spiral flow channel (30) has a tangential outlet,
    the fastening structure (5) comprises at least three fastening points (52a, 52b, 52c) for a spot fastening on the vehicle structure (6), and
    the fastening points (52a, 52b, 52c) are arranged in a plane parallel to the rotation axis (10).
  2. Electric motor-vehicle coolant pump (1) of claim 1, characterized in that the fastening structure (5) is formed integrally with the flow housing part (3).
  3. Electric motor-vehicle coolant pump (1) of one of claims 1 or 2, characterized in that the fastening structure (5) is arranged in parallel with the rotation axis in the longitudinal direction.
  4. Electric motor-vehicle coolant pump (1) of one of the preceding claims, characterized in that the fastening structure (5) has a support arm (50) projecting outward from the flow housing part (3).
  5. Electric motor-vehicle coolant pump (1) of claim 4, characterized in that the support arm (50) is designed as a flange with at least one reinforcement rib (31).
  6. Electric motor-vehicle coolant pump (1) of claim 1, characterized in that the fastening points (52a, 52b, 52c) are arranged in a plane in a right triangle with respect to each other.
  7. Electric motor-vehicle coolant pump (1) of one of the preceding claims, characterized in that the fastening structure (5) is fixed on the vehicle structure (6) using a frictional and/or a positive connection.
  8. Electric motor-vehicle coolant pump (1) of one of the preceding claims, characterized in that the fastening structure (5) comprises at least one vibration damper (30).
  9. Electric motor-vehicle coolant pump (1) of claim 8, characterized in that the vibration damper (55) is designed as an elastomer ring resting in an opening (52) on the fastening structure (5).
  10. Electric motor-vehicle coolant pump (1) of one of the preceding claims, characterized in that the flow housing part (3) comprises a centering structure (35) for aligning the motor housing part (4) with respect to the flow housing part (3).
  11. Electric motor-vehicle coolant pump (1) of one of the preceding claims, characterized in that the flow housing part (3) comprises an axial and/or radial gap sealing surface at a contact surface (36) to the fluid-conveying element (33).
EP15734623.0A 2015-06-30 2015-06-30 Pump housing having a fastening structure Active EP3317543B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/064827 WO2017000990A1 (en) 2015-06-30 2015-06-30 Pump housing having a fastening structure

Publications (2)

Publication Number Publication Date
EP3317543A1 EP3317543A1 (en) 2018-05-09
EP3317543B1 true EP3317543B1 (en) 2021-09-22

Family

ID=53524758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15734623.0A Active EP3317543B1 (en) 2015-06-30 2015-06-30 Pump housing having a fastening structure

Country Status (4)

Country Link
US (1) US11401950B2 (en)
EP (1) EP3317543B1 (en)
CN (1) CN107667227B (en)
WO (1) WO2017000990A1 (en)

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Also Published As

Publication number Publication date
US11401950B2 (en) 2022-08-02
US20180187698A1 (en) 2018-07-05
CN107667227B (en) 2022-07-26
EP3317543A1 (en) 2018-05-09
WO2017000990A1 (en) 2017-01-05
CN107667227A (en) 2018-02-06

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