EP3317543A1 - Pump housing having a fastening structure - Google Patents

Pump housing having a fastening structure

Info

Publication number
EP3317543A1
EP3317543A1 EP15734623.0A EP15734623A EP3317543A1 EP 3317543 A1 EP3317543 A1 EP 3317543A1 EP 15734623 A EP15734623 A EP 15734623A EP 3317543 A1 EP3317543 A1 EP 3317543A1
Authority
EP
European Patent Office
Prior art keywords
housing part
coolant pump
pump
attachment
flow housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15734623.0A
Other languages
German (de)
French (fr)
Other versions
EP3317543B1 (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
Original Assignee
Pierburg Pump Technology GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pierburg Pump Technology GmbH filed Critical Pierburg Pump Technology GmbH
Publication of EP3317543A1 publication Critical patent/EP3317543A1/en
Application granted granted Critical
Publication of EP3317543B1 publication Critical patent/EP3317543B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 automotive electrical motor coolant coolant pump (motor vehicle coolant pump) comprising a pump housing having at least one flow housing part and a separately formed 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 conveying element at least partially surrounds, and the motor housing part at least partially surrounds an electric drive motor for driving the fluid conveying element, wherein the pump housing via a mounting structure to a vehicle structure is fixable.
  • a pump housing having at least one flow housing part and a separately formed 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 conveying element at least partially surrounds
  • the motor housing part at least partially surrounds an electric drive motor for driving the fluid conveying element, wherein the pump housing via a mounting structure to a vehicle structure is fixable.
  • Such electric motor vehicle coolant pumps are well known from the prior art and are mainly used to promote a coolant for cooling a vehicle internal combustion engine. Due to the usual structure, such pumps usually have a plurality of individual housing parts, such as the flow housing part and the motor housing part, which are usually rotationally aligned with each other, are fixed to each other via a fixing device and form the entire pump housing in the assembled state. The fluidic connection of such a pump to a vehicle is usually via separately formed hoses.
  • a vehicle structure such as on a vehicle body or on an engine block
  • damping means are usually provided on the fastening structures.
  • coolant pumps must be designed individually depending on the vehicle model, in particular with regard to the required pump power, the predetermined fluidic connections, the fastening structures and the damping means.
  • the complexity of tuning the interfaces between the pump and the vehicle increases in the manufacture and assembly of the coolant pump leads to an increased cost.
  • the invention is therefore an object of the invention to provide an electric vehicle coolant pump, a cross-vehicle model
  • the attachment 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 pump and vehicle can be limited solely to the design of the flow housing part.
  • the motor housing part - depending vehicle model and the associated requirements For example, with regard to a model variant and / or pump performance - may have different designs or sizes and are made completely independent of the interfaces and connection requirements of the pump to the vehicle.
  • the production and installation of the coolant pump can be considerably simplified and consequently relatively inexpensive
  • the attachment structure can be a separate component, such as a clamp or a support arm, wherein the attachment structure can be adapted individually to the shape of the flow housing part.
  • the attachment structure is formed integrally with the flow housing part.
  • the attachment structure is arranged in the longitudinal extent parallel to the axis of rotation. This allows a particularly stable and relatively secure fixation of the coolant pump to the vehicle structure. In addition, the pump is thereby constructed relatively space-saving.
  • the fastening device preferably has a support arm which protrudes outward from the flow housing part.
  • the support arm has - especially at a distal end - advantageously on an opening or bore through which structure for fastening the support arm to the vehicle, a screw, a rivet, a bolt or other fastener may extend.
  • the support arm may have an outwardly projecting centering pin for aligning the support arm relative to the vehicle structure.
  • the support arm may be formed as a flange and have at least one stiffening rib.
  • the reinforcing rib can be formed in the longitudinal extent of the flange on this, thus, the support arm has a particularly high stability.
  • the attachment structure preferably has at least three attachment points for point attachment of the pump housing to the vehicle structure.
  • An attachment point may, for example, be understood to be an opening through which a screw extends for attachment. Particularly preferred exactly three such attachment points are provided.
  • the attachment points are arranged in a plane parallel to the axis of rotation.
  • a common contact plane is created, with which the fastening structure can rest and be fixed in a relatively simple manner on a contact surface of the vehicle structure.
  • the attachment points are arranged in the plane in a right triangle to each other. This allows a particularly stable fixation of the pump to the vehicle structure, in particular the pump is fixed against tilting and / or twisting.
  • the attachment structure is fixed via a frictional and / or formschiüssige connection to the vehicle structure.
  • the fastening structure on the vehicle structure can be fixed in particular detachably, particularly preferably by means of a screw.
  • the attachment structure has at least one vibration damper, preferably at an attachment point.
  • the vibration damper may in particular be suitable for damping unwanted vibrations of the coolant pump and thus preventing a loosening of the attachment of the pump to the vehicle structure as well as a noise development.
  • the vibration damper is preferably formed as an elastomeric ring which abuts in an opening, such as an attachment point, on the mounting structure.
  • the elastomeric ring for example a rubber ring, can be inserted or inserted into a hole or recess provided for this purpose in the fastening structure. This allows a relatively safe 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 Zentrler minimalist may be a paragraph or a recess into which, for example, a pin is used.
  • a shoulder is formed on the flow housing part, on which the motor housing part can be used exclusively in a specific rotational orientation.
  • a pump rotor carrying the fluid conveying element can be used for storage in a shoulder of the flow housing part and can be rotatably mounted thereon.
  • the coolant pump can be constructed relatively compact.
  • the flow housing part preferably has an axial and / or radial gap sealing surface to the Fluid useiement.
  • Figure 1 shows schematically a side view of a mounted electric coolant pump
  • FIG. 2 schematically shows a perspective view of a flow housing part with a fastening structure.
  • an electric motor vehicle coolant pump 1 is shown in the assembled state 100.
  • the coolant pump 1 is mechanically fixed with a mounting structure 5 on a vehicle structure 6 shown only schematically.
  • the coolant pump 1 has a pump housing 2, which in the present case comprises a flow housing part 3 and a separately formed motor housing part 4.
  • a spiral flow channel 30 and a rotatable Ruid benefitelement 33 therein is arranged, which is shown in Figure 1 by a Ausbruchdarsteliung.
  • the flow channel 30 has an axial inlet 31 and a tangential outlet 32.
  • the fluid conveying element 33 is mounted on a drive shaft 11, which extends into the motor housing part 4.
  • a drive motor 40 is arranged for driving the conveying element 33 via the shaft 11, which is also shown in Figure 1 in the form of an outbreak.
  • the flow housing part 3 and the motor housing part 4 are aligned with each other and fixed to each other via a plurality of screw 21.
  • the screw 21 is designed so stable that the motor housing part 4 and the therein arranged components can be supported by the flow housing part 3 without further support.
  • a mechanical fixation of the coolant pump 1 to the vehicle structure 6 takes place exclusively via the attachment structure 5, which in the present case - as can be seen in particular in FIG. 2 - consists of two support arms 50.
  • the support arm is presently designed in each case as a flange with a stiffening rib 51.
  • the support arm 50 is formed 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 at a respective distal end, through which in each case a screw 53 for fastening the flow housing part 3 to the vehicle structure 6 extends.
  • 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 present in particular one to the axis of rotation 10th coaxially arranged heel.
  • a seal not shown in detail is also provided, through which the interior of the pump housing 2 can be sealed from the environment.

Landscapes

  • 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)

Abstract

The invention relates to an 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) at least partially surrounds a spiral flow channel (30), which has an axial inlet (31) and a tangential outlet (32), and at least partially surrounds a rotatably supported fluid-conveying element (33), and the motor housing part (4) surrounds an electric drive motor (40) for driving the fluid-conveying element (33), wherein the pump housing (2) can be fastened to a vehicle structure (6) by means of a fastening structure (5). In order to simplify the adjustment of coolant pumps in accordance with a vehicle model, on the pump side, according to the invention, the fastening structure (5) is arranged only on the flow housing part (3).

Description

B E S C H R E I B U N G  DESCRIPTION

Pumpengehäuse mit Befestigungsstruktur Pump housing with mounting structure

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 automotive electrical motor coolant coolant pump (motor vehicle coolant pump) comprising a pump housing having at least one flow housing part and a separately formed 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 conveying element at least partially surrounds, and the motor housing part at least partially surrounds an electric drive motor for driving the fluid conveying element, wherein the pump housing via a mounting structure to a vehicle structure is fixable.

Derartige elektrische Kfz-Kühimittelpumpen 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. Zur Minderung von Vibrationen und hierdurch hervorgerufener Geräusche sind an den Befestig ungsstru ktu ren zumeist Dämpfungsmittel vorgesehen. Such electric motor vehicle coolant pumps are well known from the prior art and are mainly used to promote a coolant for cooling a vehicle internal combustion engine. Due to the usual structure, such pumps usually have a plurality of individual housing parts, such as the flow housing part and the motor housing part, which are usually rotationally aligned with each other, are fixed to each other via a fixing device and form the entire pump housing in the assembled state. The fluidic connection of such a pump to a vehicle is usually via separately formed hoses. For mechanical fixation or attachment of the coolant pump to a vehicle structure, such as on a vehicle body or on an engine block, usually support or mounting structures are provided, which are each arranged separately or integrally on the individual housing parts of the pump. In order to reduce vibrations and noise caused thereby, damping means are usually provided on the fastening structures.

Typischerweise müssen solche Kühimittelpumpen 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 must be designed individually depending on the vehicle model, in particular with regard to the required pump power, the predetermined fluidic connections, the fastening structures and the damping means. However, as the number of predefined features increases, the complexity of tuning the interfaces between the pump and the vehicle increases in the manufacture and assembly of the coolant pump leads to an increased cost.

Der Erfindung liegt daher die Aufgabe zugrunde, eine elektrische Kfz- Kühlmittelpumpe bereitzustellen, die eine fahrzeugmodell übergreifendeThe invention is therefore an object of the invention to provide an electric vehicle coolant pump, a cross-vehicle model

Auslegung und eine relativ universelle Befestigungsmögllchkeit an einer Fahrzeugstruktur ermöglicht. Design and a relatively universal Befestigungsmögllchkeit on a vehicle structure allows.

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 embodiments and further developments of the invention are set forth 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 kann und 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 attachment 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 pump and vehicle can be limited solely to the design of the flow housing part. In contrast, the motor housing part - depending vehicle model and the associated requirements, For example, with regard to a model variant and / or pump performance - may have different designs or sizes and are made completely independent of the interfaces and connection requirements of the pump to the vehicle. As a result, the production and installation of the coolant pump can be considerably simplified and consequently relatively inexpensive,

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 einstöckig ausgebildet. Dadurch kann die Anzahl der Bauteile verringert werden und die Kühlmittelpumpe an der Fahrzeugstruktur in relativ einfacher Weise festgelegt werden. In principle, the attachment structure can be a separate component, such as a clamp or a support arm, wherein the attachment structure can be adapted individually to the shape of the flow housing part. Advantageously, the attachment structure is formed integrally with the flow housing part. Thereby, 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. Advantageously, the attachment structure is arranged in the longitudinal extent parallel to the axis of rotation. This allows a particularly stable and relatively secure fixation of the coolant pump to the vehicle structure. In addition, the pump is thereby constructed relatively space-saving.

Vorzugsweise weist die Befestig u ngsstru ktur einen von dem Strömungsgehäuseteil nach außen hervorstehenden Tragarm auf. Dadurch kann die Anzahl der Bauteile verringert werden und die Kühlmitteipumpe 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 Fahrzeug struktur 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. 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 fastening device preferably has a support arm which protrudes outward from the flow housing part. Thereby, the number of components can be reduced and the Kühlmitteipumpe be set to the vehicle structure in a relatively simple manner. The support arm has - especially at a distal end - advantageously on an opening or bore through which structure for fastening the support arm to the vehicle, a screw, a rivet, a bolt or other fastener may extend. Furthermore, the support arm may have an outwardly projecting centering pin for aligning the support arm relative to the vehicle structure. The support arm may be formed as a flange and have at least one stiffening rib. In particular, the reinforcing rib can be formed in the longitudinal extent of the flange on this, thus, the support arm has a particularly high stability.

Die Befestigungsstruktur weist bevorzugt 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 attachment structure preferably has at least three attachment points for point attachment of the pump housing to the vehicle structure. An attachment point may, for example, be understood to be an opening through which a screw extends for attachment. Particularly preferred exactly three such attachment points are provided. As a result, a relatively stable and secure fixation of the coolant pump to the vehicle structure can be ensured.

Vorzugsweise sind die Befestigungspunkte 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. Preferably, the attachment points are arranged in a plane parallel to the axis of rotation. As a result, a common contact plane is created, with which the fastening structure can rest and be fixed in a relatively simple manner on a contact surface of the vehicle structure.

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. Particularly preferably, the attachment points are arranged in the plane in a right triangle to each other. This allows a particularly stable fixation of the pump to the vehicle structure, in particular the pump is fixed against tilting and / or twisting.

Vorzugsweise ist die Befestigungsstruktur über eine kraftschlüssige und/oder formschiüssige Verbindung an der Fahrzeug struktur 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. 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. Preferably, the attachment structure is fixed via a frictional and / or formschiüssige connection to the vehicle structure. As a result, the fastening structure on the vehicle structure can be fixed in particular detachably, particularly preferably by means of a screw. This is particularly advantageous when repairing or replacing the pump. Advantageously, the attachment structure has at least one vibration damper, preferably at an attachment point. The vibration damper may in particular be suitable for damping unwanted vibrations of the coolant pump and thus preventing a loosening of the attachment of the pump to the vehicle structure as well as a noise development.

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 formed as an elastomeric ring which abuts in an opening, such as an attachment point, on the mounting structure. The elastomeric ring, for example a rubber ring, can be inserted or inserted into a hole or recess provided for this purpose in the fastening structure. This allows a relatively safe 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 Zentrlerstruktur 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 Fluidfördereiement 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 Zentrlerstruktur may be a paragraph or a recess into which, for example, a pin is used. Advantageously, a shoulder is formed on the flow housing part, on which the motor housing part can be used exclusively in a specific rotational orientation. Furthermore, a pump rotor carrying the fluid conveying element can be used for storage in a shoulder of the flow housing part and can be rotatably mounted thereon. The coolant pump can be constructed relatively compact.

Das Strömungsgehäuseteil weist bevorzugt eine axiale und/oder radiale Spalt-Dichtfläche zu dem Fluidfördereiement auf. Dadurch kann eine relati verlustfrele Fluidförderung stattfinden, so dass der Wirkungsgrad der Kühimittelpumpe gesteigert werden kann. Nachfolgend wird die Erfindung anhand einer bevorzugten Ausführungsform unter Bezugnahme auf die anliegenden Zeichnungen näher erläutert. The flow housing part preferably has an axial and / or radial gap sealing surface to the Fluidfördereiement. As a result, a relati loss-elastic fluid delivery take place, so that the efficiency of the coolant pump can be increased. The invention will be explained in more detail with reference to a preferred embodiment with reference to the accompanying drawings.

Figur 1 zeigt schematisch eine Seitenansicht einer montierten elektrischen Kühlmittelpumpe, und Figure 1 shows schematically a side view of a mounted electric coolant pump, and

Figur 2 zeigt schematisch eine perspektivische Ansicht eines Strömungsgehäuseteils mit einer Befestigungsstruktur. FIG. 2 schematically shows 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, an electric motor vehicle coolant pump 1 is shown in the assembled state 100. In particular, the coolant pump 1 is mechanically fixed with a mounting structure 5 on a vehicle structure 6 shown only 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 Ruidförderelement 33 angeordnet, welches in Figur 1 durch eine Ausbruchdarsteliung 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 formed motor housing part 4. Within the flow housing part 3, a spiral flow channel 30 and a rotatable Ruidförderelement 33 therein is arranged, which is shown in Figure 1 by a Ausbruchdarsteliung. The flow channel 30 has an axial inlet 31 and a tangential outlet 32. The fluid conveying element 33 is mounted on a drive shaft 11, which extends into the motor housing part 4. Within the motor housing part 4, a drive motor 40 is arranged for driving the conveying element 33 via the shaft 11, which is also shown in Figure 1 in the form of an outbreak.

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 junction 20, the flow housing part 3 and the motor housing part 4 are aligned with each other and fixed to each other via a plurality of screw 21. The screw 21 is designed so stable that the motor housing part 4 and the therein arranged components can be supported by the flow housing part 3 without further support.

Eine fluidische Verbindung zwischen der Kühlmittelpumpe i und dem nicht näher dargestellten Fahrzeug erfolgt vorliegend über einen ebenfalls nicht näher dargestellten Zuleitungskanai 61 an dem Einlass 31 und Ableitungskanal 62 an den Auslass 32 des pumpenseitigenA fluidic connection between the coolant pump i and the vehicle, not shown, takes place here via a feed duct 61 likewise not illustrated in detail at the inlet 31 and discharge duct 62 at the outlet 32 of the pump-side

Strömungskanals 30. 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. A mechanical fixation of the coolant pump 1 to the vehicle structure 6 takes place exclusively via the attachment structure 5, which in the present case - as can be seen in particular in FIG. 2 - consists of two support arms 50. The support arm is presently designed in each case as a flange with a stiffening rib 51. The support arm 50 is formed 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 at a respective distal end, through which in each case a screw 53 for fastening the flow housing part 3 to the vehicle structure 6 extends. By 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 can be seen particularly clearly in FIG. 2, 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. The centering structure 35 is present in particular one to the axis of rotation 10th coaxially arranged heel. At the centering structure 35, a seal not shown in detail is also provided, through which the interior of the pump housing 2 can be sealed 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 Fiuidförderelement 33 gelagert werden kann. Dadurch kann eine relativ verlustfreie Fluidförderung stattfinden, so dass der Wirkungsgrad der Kühlmittelpumpe 1 gesteigert werden kann. At a further shoulder or an abutment surface 36 of a likewise the drive motor 40 side facing the flow housing part 3 on an axial and radial gap sealing surface 34 on which the Fiuidförderelement 33 can be stored. This allows a relatively lossless fluid delivery 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 described embodiments.

Bezugszeichenliste LIST OF REFERENCE NUMBERS

1 Kfz-Kühlmittelpumpe 1 automotive coolant pump

10 Rotationsachse  10 rotation axis

11 Antriebswelle  11 drive shaft

2 Pumpengehäuse  2 pump housings

20 Gehäuseverbindung 20 housing connection

3 Strömungsgehäuseteil  3 flow housing part

30 Strömungskanal  30 flow channel

31 Einlass  31 inlet

32 Auslass  32 outlet

33 Fluidförderelement 33 fluid conveying element

4 Spalt-Dichtfläche 4 gap sealing surface

5 Zentrierstruktur 5 centering structure

6 Anlagefläche  6 contact surface

Motorgehäuseteil Motor housing part

0 Antriebsmotor  0 drive motor

Befestigungsstruktur attachment structure

0 Tragarm, Flansch 0 support arm, flange

1 Versteifungsrippe 1 stiffening rib

2 Öffnung, Bohrung 2 opening, bore

2a Befestigungspunkt, Befestigungselement 2b Befestigungspunkt, Befestigungselement 2c Befestigungspunkt, Befestigungselement 3 Schraube 2a attachment point, attachment element 2b attachment point, attachment element 2c attachment point, attachment element 3 screw

5 Schwingungsdämpfer  5 vibration dampers

Fahrzeugstruktur vehicle structure

1 Zuleitungskanal 1 supply duct

2 Ableitungskanal 2 discharge channel

00 montierter Zustand  00 assembled state

Claims

A N S P R Ü C H E Elektrische Kfz- Kühlmittelpumpe (1) mit einem Pumpengehäuse (2), das zumindest ein Strömungsgehäuseteil (3) und ein separat ausgebildetes Motorgehäuseteil (4) aufweist, wobei das Strömungsgehäuseteil (3) einen spiralförmigen Strömungskanal (30), der einen axialen Einlass (31) und einen tangentialen Auslass (32) aufweist, und ein drehbar gelagertes Fluidfördereiement (33) zumindest teilweise umgibt, und das Motorgehäuseteil (4) einen elektrischen Antriebsmotor (40) zum Antreiben des Fluidförderelements (33) umgibt, wobei das Pumpengehäuse (2) über eine Befestig ungsstru ktu r (5) an einer Fahrzeugstruktur (6) fixierbar ist, dadurch gekennzeichnet, dass die Befestig u ngsstru ktur (5) pumpenseitig ausschließlich an dem Strömungsgehäuseteil (3) angeordnet ist. Electric vehicle coolant pump (1) having a pump housing (2) which has at least one flow housing part (3) and a separately formed motor housing part (4), wherein the flow housing part (3) has a spiral flow channel (30) having an axial inlet (31 ) and a tangential outlet (32), and at least partially surrounds a rotatably mounted Fluidförderereiement (33), and the motor housing part (4) an electric drive motor (40) for driving the fluid conveying element (33) surrounds, wherein the pump housing (2) via a fastening structure (5) can be fixed to a vehicle structure (6), characterized in that the fastening structure (5) is arranged on the pump side exclusively on the flow housing part (3). Elektrische Kfz-Kühlmittelpumpe (1) nach Anspruch 1, dadurch gekennzeichnet, dass Electric vehicle coolant pump (1) according to claim 1, characterized in that die Befestigungsstruktur (5) mit dem Strömungsgehäuseteil (3) einstückig ausgebildet ist. the fastening structure (5) is integrally formed with the flow housing part (3). 3. Elektrische Kfz-Kühlmitteipumpe (1) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass 3. Electrical Kfz Kühlmitteipumpe (1) according to one of claims 1 or 2, characterized in that die Befestigungsstruktur (5) in Längserstreckung parallel zur Rotationsachse (10) angeordnet ist,  the attachment structure (5) is arranged in longitudinal extension parallel to the axis of rotation (10), 4. Elektrische Kfz-Kühlmitteipumpe (1) nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass 4. Electrical motor coolant coolant pump (1) according to one of the preceding claims, characterized in that die Befestigungsstruktur (5) einen von dem Strömungsgehäuseteil (3) nach außen hervorstehenden Tragarm (50) aufweist.  the attachment structure (5) has a support arm (50) projecting outwardly from the flow housing part (3). 5. Elektrische Kfz-Kühlmitteipumpe (1) nach Anspruch 4, dadurch gekennzeichnet, dass 5. Electric motor coolant coolant pump (1) according to claim 4, characterized in that der Tragarm (50) als ein Flansch mit zumindest einer Versteifungsrippe (51) ausgebildet ist.  the support arm (50) is formed as a flange with at least one stiffening rib (51). 6. Elektrische Kfz-Kühlmittelpumpe (1) nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass 6. Electrical motor vehicle coolant pump (1) according to one of the preceding claims, characterized in that die Befestigungsstruktur (5) mindestens drei Befestigungspunkte (52a, 52b, 52c) zur punktuellen Befestigung an der Fahrzeugstruktur (6) aufweist.  the fastening structure (5) has at least three attachment points (52a, 52b, 52c) for selective attachment to the vehicle structure (6). 7. Elektrische Kfz-Kühlmittelpumpe (1) nach Anspruch 6, dadurch gekennzeichnet, dass 7. Electric motor vehicle coolant pump (1) according to claim 6, characterized in that die Befestigungspunkte (52a, 52b, 52c) In einer zur Rotationsachse (10) parallelen Ebene angeordnet sind.  the attachment points (52a, 52b, 52c) are arranged in a plane parallel to the axis of rotation (10). 8. Elektrische Kfz-Kühlmittelpumpe (1) nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, dass 8. Electric motor vehicle coolant pump (1) according to one of claims 6 or 7, characterized in that die Befestigungspunkte (52a, 52b, 52c) in einer Ebene in einem rechtwinkligen Dreieck zueinander angeordnet sind. the attachment points (52a, 52b, 52c) are arranged in a plane in a right-angled triangle. 9. Elektrische Kfz-Kühlmittelpumpe (1) nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass 9. Electric motor vehicle coolant pump (1) according to one of the preceding claims, characterized in that die Befestigungsstruktur (5) über eine kraftschlüssige und/oder formschlüssige Verbindung an der Fahrzeugstruktur (6) fixiert ist.  the attachment structure (5) is fixed to the vehicle structure (6) via a non-positive and / or positive connection. 10. Elektrische Kfz-Kühlmittelpumpe (1) nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass 10. Electrical motor vehicle coolant pump (1) according to one of the preceding claims, characterized in that die Befestigungsstruktur (5) mindestens einen Schwingungsdämpfer the attachment structure (5) at least one vibration damper (55) aufweist, (55), 11. Elektrische Kfz-Kühlmittelpumpe (1) nach Anspruch 10, dadurch gekennzeichnet, dass 11. Electric motor vehicle coolant pump (1) according to claim 10, characterized in that der Schwingungsdämpfer (55) als ein Elastomer-Ring ausgebildet ist, der in einer Öffnung (52) an der Befestigungsstruktur (5) anliegt.  the vibration damper (55) is formed as an elastomeric ring which abuts in an opening (52) on the mounting structure (5). 12. Elektrische Kfz-Kühlmittelpumpe (1) nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass 12. Electric motor vehicle coolant pump (1) according to one of the preceding claims, characterized in that das Strömungsgehäuseteil (3) eine Zentrierstruktur (35) zur Ausrichtung des Motorgehäuseteils (4) gegenüber dem the flow housing part (3) has a centering structure (35) for aligning the motor housing part (4) with respect to Strömungsgehäuseteil (3) aufweist. Flow housing part (3). 13. Elektrische Kfz-Kühlmittelpumpe (1) nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass 13. Electrical motor vehicle coolant pump (1) according to one of the preceding claims, characterized in that das Strömungsgehäuseteil (3) an einer Anlagefiäche (36) zu dem Fluidförderelement (33) eine axiale und/oder eine radiale Spalt- Dichtfläche (34) aufweist.  the flow housing part (3) has an axial and / or a radial gap sealing surface (34) on an abutment face (36) to the fluid conveying element (33).
EP15734623.0A 2015-06-30 2015-06-30 Pump housing having a fastening structure Active EP3317543B1 (en)

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PCT/EP2015/064827 WO2017000990A1 (en) 2015-06-30 2015-06-30 Pump housing having a fastening structure

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EP3317543B1 (en) 2021-09-22
US11401950B2 (en) 2022-08-02
US20180187698A1 (en) 2018-07-05
CN107667227B (en) 2022-07-26
WO2017000990A1 (en) 2017-01-05
CN107667227A (en) 2018-02-06

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