EP1085217A2 - Pump housing with integrated electronics - Google Patents

Pump housing with integrated electronics Download PDF

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Publication number
EP1085217A2
EP1085217A2 EP00113847A EP00113847A EP1085217A2 EP 1085217 A2 EP1085217 A2 EP 1085217A2 EP 00113847 A EP00113847 A EP 00113847A EP 00113847 A EP00113847 A EP 00113847A EP 1085217 A2 EP1085217 A2 EP 1085217A2
Authority
EP
European Patent Office
Prior art keywords
centrifugal pump
pump according
base plate
housing
pump 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.)
Withdrawn
Application number
EP00113847A
Other languages
German (de)
French (fr)
Other versions
EP1085217A3 (en
Inventor
Thomas Materne
Waldemar Stephan
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.)
Wilo GmbH
Original Assignee
Wilo GmbH
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Filing date
Publication date
Application filed by Wilo GmbH filed Critical Wilo GmbH
Publication of EP1085217A2 publication Critical patent/EP1085217A2/en
Publication of EP1085217A3 publication Critical patent/EP1085217A3/en
Withdrawn legal-status Critical Current

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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
    • 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
    • F04D13/0606—Canned motor 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
    • 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
    • F04D13/0686—Mechanical details of the pump control unit
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5813—Cooling the control unit
    • 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
    • F01P2050/00—Applications
    • F01P2050/30—Circuit boards
    • 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

Definitions

  • the present invention relates to one of one speed controlled electric motor operated wet running Centrifugal pump, especially for use in heating and / or Cooling circuits with a control electronics having electronic module and with a spiral chamber surrounding pump housing is equipped.
  • centrifugal pumps designed as wet rotors have been around since well known for a long time. They leave in small designs attach directly to the system to be pumped. you will be with powers from a few watts to about 100 watts from Synchronous or asynchronous motors and more recently too operated by electronically commutated DC motors. To set the speed of such electric motors or Frequency converters with power transistors are to be regulated used because of the strong waste heat of a special Need cooling. For cooling the power electronics known various principles.
  • the power electronics can be exposed Place and be provided with cooling surfaces to to achieve cooling through the ambient air.
  • This kind the cooling is especially with the small pumps ineffective and can only be used to a limited extent. Moreover contribute the necessary cooling surfaces to enlarge the mechanical construction.
  • With wet running canned pumps it is known to be beneficial to the cooling electronics Expose the influence of the pump medium. This is the pump medium via the containment shell or via separate lines to the parts of the motor housing to which the electronics are attached is. It is known from larger size pumps that Use power electronics in a separate module and to expose this directly to the flow of the pump medium. Both Types of cooling supported by the pump medium are complex and contribute especially to small pumps at unacceptable costs at.
  • pumps are known in which the Electronics on a heat sink between the motor housing and the pump housing is attached. This heat sink carries as additional component to be assembled separately also to a Increase in production costs.
  • the object of the present invention is a wet-running To create a centrifugal pump that is highly reliable and a structurally simple at low manufacturing costs realizing possibility, the control electronics in sufficient cooling.
  • the idea of the invention is that of medium flowed through and the spiral chamber at least partially surrounding pump housing itself is used as a heat sink.
  • the pump housing is attached to one of the spiral chambers facing away from the surface with a receptacle on the the electronic module containing the control electronics in heat-conductive contact to the pump medium can be attached.
  • the motor housing will now become the pump housing trained for this purpose.
  • cooling is optimal in a simple and simple manner Cooling guaranteed so that the maximum allowable Temperature of the components is not exceeded and this be spared accordingly. This leads to an increase in Pump life. It is also advantageous that with the cooling of the invention a safe operation of the pump even at high outside temperatures, such as in Motor vehicles occur, is possible.
  • Cooling no further components are required. Because of the few components is high operational reliability and Maintenance friendliness of the pump according to the invention given.
  • the pump can be compact, especially in the axial direction be built and takes place even with limited spatial Conditions sufficient installation space.
  • the cooling according to the invention, the axial design of the pump and thus merging in one direction, resulting in one contributes to a further reduction in assembly costs.
  • the pump housing is made in one piece from metal is shaped and provided with the receptacle according to the invention.
  • the pump housing forms the one that receives the impeller Impeller chamber or the spiral chamber, so that none possibly obstructive heat transfers between two Components are available. So that is the full flow of the medium used for immediate heat dissipation.
  • in one piece Pump housing with a box-shaped receptacle in particular molded rectangular receiving space in which the Electronic module can be used via an opening. To this In this way, the module is completely surrounded by cooled walls.
  • the electronics module itself is advantageously included a base, in particular by means of heat-conducting Paste, on one of the walls of the rectangular recording room created.
  • the pump has a base plate, which is drawn in one piece from metal, in particular from sheet metal, or is die-cast and is designed as a chassis, which serves as a carrier for the other components and by means of which the pump can be held.
  • This base plate serves as the rear wall of the pump housing, which is acted upon directly by the medium.
  • the base plate is designed as a receptacle for the electronic module. This is advantageously in the electrical "side of the base plate, a flat mounting surface is incorporated on which the electronic module can be placed.
  • the cooling according to the invention can be particularly advantageous use in pumps that are electronically commutated DC motor operated.
  • the electronic one Commutation necessary electronics modules have a large Number of power semiconductors and therefore require one particularly effective cooling.
  • FIG 1 is one of a speed controlled Electric motor operated and trained as a wet runner Centrifugal pump especially for use in stimulus and / or Cooling circuits shown, the impeller 1 on a shaft 2 held with pressed permanent magnet rotor 3 is.
  • the centrifugal pump has a one-piece made of metal molded pump housing 4 with a central inlet 5, which is the impeller 1 rotating in an impeller chamber surrounds and forms a spiral chamber 6.
  • an electronic module 7 is provided in which the power semiconductors are housed.
  • the pump housing 6 has a receptacle 8 rectangular recording space in which the electronic module 7 housed and thermally conductive with the surrounding walls 9 connected is.
  • the electronic module 7 can be connected via a Opening 10 are installed.
  • the electrical contact between the stator windings 11 and the electronics module 7 happens via a connecting channel 12 between the Recording space and the interior of the engine housing 19. Die electrical contacting of the electronics module 7 to the external Power supply ensures a connector 13, the on the side of the receptacle 9 facing away from the impeller 1 is appropriate.
  • the pump shown is a Wet rotor pump, in which the rotor 3 from the stator 14 by a Can 15 are separated.
  • the containment shell 15 is on the integrally formed on a bearing bracket 16 receiving bearing plate 17.
  • the bearing bracket carries one of two bushings 18 in which wave 2 is running.
  • the other bearing bush 18 is in one Forming the containment shell 15 pressed.
  • a Ring seal 19 used to seal the Pump housing 4 opposite the end shield 17 is a Ring seal 19 used.
  • the centrifugal pump shown in FIG. 2 has a one-piece metal base plate 20, which is formed from metal, in particular drawn or die-cast, on its hydraulic "side carries a plastic housing shell 21 covering the impeller chamber.
  • the housing shell 21 placed on the base plate 20 is sealed by a sealing ring 22.
  • the housing shell 21 has a central suction nozzle 5 and a pressure nozzle (not shown). In the spiral space there is an improvement an element 23 of the hydraulic properties.
  • the base plate 20 faces the one facing away from the impeller 1 electrical "side a pot-shaped holder 24 for inserting the stator 29.
  • an electronic module 25 is placed in thermal contact on a mounting surface 26 of the base plate 20.
  • the electronic module 25 is contacted via a connector 27 on the hydraulic side of the base plate 20 is attached.
  • the containment shell 15 is attached to the base plate 20 molded sleeve 28 held by means of a sealing ring and is jammed by a bearing bracket 30.
  • a plastic housing cover 31 put on, all on the electrical side of the Base plate 20 covers arranged components.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The wet-running pump is driven by a speed-regulated electric motor and has an electronic module (7) containing control electronics and a pump housing (4) enclosing a spiral chamber (6) with a central suction port and a pressure port. The pump housing has a mounting (8) on which the electronic module is brought into thermal contact with the pump medium in the spiral chamber. An Independent claim is also included for the use of a rotary pump for circulating the coolant in a motor vehicle cooling circuit.

Description

Die vorliegende Erfindung betrifft eine von einem drehzahlgesteuerten Elektromotor betriebene naßlaufende Kreiselpumpe, insbesondere für den Einsatz in Heiz- und/oder Kühlkreisläufen, die mit einem eine Steuerelektronik aufweisenden Elektronikmodul und mit einem eine Spiralkammer umgebenden Pumpengehäuse ausgerüstet ist.The present invention relates to one of one speed controlled electric motor operated wet running Centrifugal pump, especially for use in heating and / or Cooling circuits with a control electronics having electronic module and with a spiral chamber surrounding pump housing is equipped.

Derartige als Naßläufer ausgebildete Kreiselpumpen sind seit langem hinlänglich bekannt. In kleinen Bauformen lassen sie sich direkt am zu bepumpenden System anbringen. Sie werden mit Leistungen von wenigen Watt bis zu etwa 100 Watt von Synchron- oder von Asynchronmotoren und in neuerer Zeit auch von elektronisch kommutierten Gleichstrommotoren betrieben. Um die Drehzahl derartiger Elektromotoren einzustellen oder zu regeln werden Frequenzumrichter mit Leistungstransistoren eingesetzt, die wegen der starken Abwärme einer besonderen Kühlung bedürfen. Zur Kühlung der Leistungselektronik sind verschiedene Prinzipien bekannt.Such centrifugal pumps designed as wet rotors have been around since well known for a long time. They leave in small designs attach directly to the system to be pumped. you will be with powers from a few watts to about 100 watts from Synchronous or asynchronous motors and more recently too operated by electronically commutated DC motors. To set the speed of such electric motors or Frequency converters with power transistors are to be regulated used because of the strong waste heat of a special Need cooling. For cooling the power electronics known various principles.

Beispielsweise kann die Leistungselektronik an exponierter Stelle angebracht und mit Kühlflächen versehen werden, um eine Kühlung durch die Umgebungsluft zu erreichen. Diese Art der Kühlung ist insbesondere bei den kleinen Pumpen ineffektiv und kann nur begrenzt eingesetzt werden. Außerdem tragen die nötigen Kühlflächen zu einer Vergrößerung des mechanischen Aufbaus bei. Bei naßlaufenden Spaltrohrpumpen ist es als vorteilhaft bekannt, die Elektronik dem kühlenden Einfluß des Pumpmediums auszusetzen. Dazu wird das Pumpmedium über den Spalttopf oder über separate Leitungen an die Teile des Motorgehäuses geführt, an denen die Elektronik angebracht ist. Es ist von Pumpen größerer Bauart bekannt, die Leistungselektronik in ein separates Modul einzusetzen und dieses direkt dem Strom des Pumpmediums auszusetzen. Beide Arten der vom Pumpmedium unterstützten Kühlung sind aufwendig und tragen gerade bei kleinen Pumpen zu unakzeptablen Kosten bei. Desweiteren sind Pumpen bekannt, bei denen die Elektronik auf einem Kühlblech zwischen dem Motorgehäuse und dem Pumpengehäuse angebracht ist. Dieses Kühlblech trägt als weiteres separat zu montierendes Bauteil ebenfalls zu einer Erhöhung der Produktionskosten bei.For example, the power electronics can be exposed Place and be provided with cooling surfaces to to achieve cooling through the ambient air. This kind the cooling is especially with the small pumps ineffective and can only be used to a limited extent. Moreover contribute the necessary cooling surfaces to enlarge the mechanical construction. With wet running canned pumps it is known to be beneficial to the cooling electronics Expose the influence of the pump medium. This is the pump medium via the containment shell or via separate lines to the parts of the motor housing to which the electronics are attached is. It is known from larger size pumps that Use power electronics in a separate module and to expose this directly to the flow of the pump medium. Both Types of cooling supported by the pump medium are complex and contribute especially to small pumps at unacceptable costs at. Furthermore, pumps are known in which the Electronics on a heat sink between the motor housing and the pump housing is attached. This heat sink carries as additional component to be assembled separately also to a Increase in production costs.

Aufgabe der vorliegenden Erfindung ist es, eine naßlaufende Kreiselpumpe zu schaffen, die bei hoher Zuverlässigkeit und bei geringen Herstellungskosten eine baulich einfach zu realisierende Möglichkeit bietet, die Ansteuerelektronik in ausreichendem Maß zu kühlen.The object of the present invention is a wet-running To create a centrifugal pump that is highly reliable and a structurally simple at low manufacturing costs realizing possibility, the control electronics in sufficient cooling.

Diese Aufgabe wird durch eine Kreiselpumpe mit den Merkmalen des Anspruch 1 gelöst.This task is carried out by a centrifugal pump with the characteristics of claim 1 solved.

Der erfindungsgemäße Gedanke liegt darin, daß das von Medium durchströmte und die Spiralkammer zumindest teilweisee umgebende Pumpengehäuse selber als Kühlkörper verwendet wird. Dazu wird das Pumpengehäuse an einer der Spiralkammer abgewandten Oberfläche mit einer Aufnahme versehen, auf der das die Steuerelektronik beinhaltende Elektronikmodul in wärmeleitendem Kontakt zum Pumpmedium befestigbar ist. Anstatt wie bislang als Halterung für die Steuerelektronik das Motorgehäuse zu verwenden, wird nunmehr das Pumpengehäuse zu diesem Zwecke ausgebildet. Durch die erfindungsgemäße Art der Kühlung wird auf beaulich einfache Weise eine optimale Kühlung gewährleistet, so daß die maximal zulässige Temperatur der Bauteile nicht überschritten wird und diese entsprechend geschont werden. Das führt zu einer Erhöhung der Lebensdauer der Pumpe. Außerdem ist es vorteilhaft, daß mit der erfindungsgemäßen Kühlung ein sicherer Betrieb der Pumpe auch bei hohen Außentemperaturen, wie sie beispielsweise in Kraftfahrzeugen auftreten, möglich ist.The idea of the invention is that of medium flowed through and the spiral chamber at least partially surrounding pump housing itself is used as a heat sink. To do this, the pump housing is attached to one of the spiral chambers facing away from the surface with a receptacle on the the electronic module containing the control electronics in heat-conductive contact to the pump medium can be attached. Instead of as a holder for the control electronics Using the motor housing will now become the pump housing trained for this purpose. By the type of the invention cooling is optimal in a simple and simple manner Cooling guaranteed so that the maximum allowable Temperature of the components is not exceeded and this be spared accordingly. This leads to an increase in Pump life. It is also advantageous that with the cooling of the invention a safe operation of the pump even at high outside temperatures, such as in Motor vehicles occur, is possible.

Im Gegensatz zu den bislang bekannten Pumpen, deren Elektronik auf dem Motorgehäuse meist an der rückseitigen Stirnwand angebracht ist und bei denen beinahe die gesamte Verlustleistung von Motor und Elektronik über das Motorgehäuse abtransportiert werden muß, ist es bei der erfindungsgemäßen Pumpe vorteilhaft, daß die Abwärme der Elektronik direkt über das Pumpengehäuse abgeführt wird.In contrast to the previously known pumps, their Electronics on the motor housing mostly on the back End wall is attached and in which almost the entire Power loss of motor and electronics via the Motor housing must be transported, it is at Pump according to the invention advantageous that the waste heat of Electronics is discharged directly via the pump housing.

Besonders vorteilhaft ist es, daß zu der erfindungsgemäßen Kühlung keine weiteren Bauteile benötigt werden. Wegen der wenigen Bauteilen ist eine hohe Betriebssicherheit und Wartungsfreundlichkeit der erfindungsgemäßen Pumpe gegeben. Außerdem kann die Pumpe vorallem in axialer Richtung kompakt gebaut werden und findet auch bei begrenzten räumlichen Bedingungen außreichend Einbauraum. Dabei unterstützt die erfindungsgemäße Kühlung die axiale Bauweise der Pumpe und damit das Zusammenfügen in einer Richtung, was zu einer weiteren Kostensenkung bei der Montage beiträgt.It is particularly advantageous that the invention Cooling no further components are required. Because of the few components is high operational reliability and Maintenance friendliness of the pump according to the invention given. In addition, the pump can be compact, especially in the axial direction be built and takes place even with limited spatial Conditions sufficient installation space. The cooling according to the invention, the axial design of the pump and thus merging in one direction, resulting in one contributes to a further reduction in assembly costs.

In einer besonders einfachen und damit vorteilhaften Ausführungsform ist das Pumpengehäuse einstückig aus Metall geformt ist und mit der erfindungsgemäßen Aufnahme versehen. Dabei bildet das Pumpengehäuse die das Laufrad aufnehmende Laufradkammer respektive die Spiralkammer aus, so daß keine möglicherweise hinderlichen Wärmeübergänge zwischen zwei Bauteilen vorhanden sind. Damit wird der vollständige Strom des Mediums zur unmittelbaren Wärmeabfuhr eingesetzt. In einer vorteilhaften Ausführungsform ist an das einstückige Pumpengehäuse eine kastenförmige Aufnahme mit insbesondere rechteckigem Aufnahmeraum angeformt, in den das Elektronikmodul über eine Öffnung einsetzbar ist. Auf diese Weise ist das Modul vollständig von gekühlten Wänden umgeben. Das Elektronikmodul selber wird dabei vorteilhafterweise mit einer Grundfläche, insbesondere vermittels wärmeleitender Paste, an einer der Wandungen des rechteckigen Aufnahmeraums angelegt.In a particularly simple and therefore advantageous Embodiment, the pump housing is made in one piece from metal is shaped and provided with the receptacle according to the invention. The pump housing forms the one that receives the impeller Impeller chamber or the spiral chamber, so that none possibly obstructive heat transfers between two Components are available. So that is the full flow of the medium used for immediate heat dissipation. In an advantageous embodiment is in one piece Pump housing with a box-shaped receptacle in particular molded rectangular receiving space in which the Electronic module can be used via an opening. To this In this way, the module is completely surrounded by cooled walls. The electronics module itself is advantageously included a base, in particular by means of heat-conducting Paste, on one of the walls of the rectangular recording room created.

In einer anderen besonders vorteilhaften Ausführungsform weist die Pumpe eine einteilig aus Metall insbesondere aus Blech gezogen oder druckgegossene, als Chassis ausgebildete Basisplatte auf, die als Träger der übrigen Bauteile dient und mittels der die Pumpe halterbar ist. Diese Basisplatte dient dabei als rückwärtige Wandung des Pumpengehäuses, die direkt vom Medium beaufschlagt wird. Auf der dem Laufrad abgewandten Seite ist die Basisplatte als Aufnahme für das Elektronikmodul ausgebildet. Dazu ist vorteilhafterweise in die

Figure 00040001
elektrische" Seite der Basisplatte eine ebene Montagefläche eingearbeitet, auf der das Elektronikmodul aufsetzbar ist.In another particularly advantageous embodiment, the pump has a base plate, which is drawn in one piece from metal, in particular from sheet metal, or is die-cast and is designed as a chassis, which serves as a carrier for the other components and by means of which the pump can be held. This base plate serves as the rear wall of the pump housing, which is acted upon directly by the medium. On the side facing away from the impeller, the base plate is designed as a receptacle for the electronic module. This is advantageously in the
Figure 00040001
electrical "side of the base plate, a flat mounting surface is incorporated on which the electronic module can be placed.

Besonders vorteilhaft läßt sich die erfindungsgemäße Kühlung bei Pumpen einsetzen, die von einem elektronisch kommutierten Gleichstrommotor betrieben werden. Die zur elektronischen Kommutierung notwendigen Elektronikmodule weisen eine große Anzahl von Leistungshalbleitern auf und bedürfen daher einer besonders effektiven Kühlung. The cooling according to the invention can be particularly advantageous use in pumps that are electronically commutated DC motor operated. The electronic one Commutation necessary electronics modules have a large Number of power semiconductors and therefore require one particularly effective cooling.

Eine besondere Ausführungsform der erfindungsgemäßen Kreiselpumpe ist in der Figuren 1 und 2 dargestellt und wird im folgenden näher beschrieben. Es zeigen:

Figur 1:
eine Kreiselpumpe mit einem Pumpengehäuse, das eine Aufnahme aufweist, und
Figur 2:
eine Kreiselpumpe mit Basisplatte.
A special embodiment of the centrifugal pump according to the invention is shown in Figures 1 and 2 and is described in more detail below. Show it:
Figure 1:
a centrifugal pump with a pump housing which has a receptacle, and
Figure 2:
a centrifugal pump with base plate.

In Figur 1 ist eine von einem drehzahlgesteuerten Elektromotor betriebene und als Naßläufer ausgebildete Kreiselpumpe insbesondere für den Einsatz in Reiz- und/oder Kühlkreisläufen dargestellt, deren Laufrad 1 auf einer Welle 2 mit aufgepreßtem permanentmagnetischem Rotor 3 gehalten ist. Die Kreiselpumpe weist ein einstückig aus Metall geformtes Pumpengehäuse 4 mit einem zentralen Einlaß 5 auf, welches das sich in einer Laufradkammer drehende Laufrad 1 umgibt und das eine Spiralkammer 6 formt. Zur Steuerung des Elektromotors ist ein Elektronikmodul 7 vorgesehen, in dem die Leistungshalbleiter untergebracht sind.In Figure 1 is one of a speed controlled Electric motor operated and trained as a wet runner Centrifugal pump especially for use in stimulus and / or Cooling circuits shown, the impeller 1 on a shaft 2 held with pressed permanent magnet rotor 3 is. The centrifugal pump has a one-piece made of metal molded pump housing 4 with a central inlet 5, which is the impeller 1 rotating in an impeller chamber surrounds and forms a spiral chamber 6. To control the Electric motor, an electronic module 7 is provided in which the power semiconductors are housed.

Erfindungsgemäß weist das Pumpengehäuse 6 eine Aufnahme 8 rechteckigen Aufnahmeraum auf, in der das Elektronikmodul 7 untergebracht und mit den umgebenden Wänden 9 wärmeleitend verbunden ist. Dabei kann das Elektronikmodul 7 über eine Öffnung 10 eingebaut werden. Die elektrische Kontaktierung zwischen den Statorwindungen 11 und dem Elektronikmodul 7 geschieht über einen Verbindungskanal 12 zwischen dem Aufnahmeraum und dem Innenraum des Motorgehäuses 19. Die elektrische Kontaktierung des Elektronikmoduls 7 zur externen Spannungsversorgung gewährleistet ein Anschlußstecker 13, der auf der dem Laufrad 1 abgewandten Seite der Aufnahme 9 angebracht ist.According to the invention, the pump housing 6 has a receptacle 8 rectangular recording space in which the electronic module 7 housed and thermally conductive with the surrounding walls 9 connected is. The electronic module 7 can be connected via a Opening 10 are installed. The electrical contact between the stator windings 11 and the electronics module 7 happens via a connecting channel 12 between the Recording space and the interior of the engine housing 19. Die electrical contacting of the electronics module 7 to the external Power supply ensures a connector 13, the on the side of the receptacle 9 facing away from the impeller 1 is appropriate.

Bei der dargestellten Pumpe handelt es sich um eine Naßläuferpumpe, bei der der Rotor 3 vom Stator 14 durch einen Spalttopf 15 getrennt sind. Der Spalttopf 15 ist dabei an den einen Lagerträger 16 aufnehmenden Lagerschild 17 angeformt. Der Lagerträger trägt eine von zwei Lagerbuchsen 18, in denen die Welle 2 läuft. Die andere Lagerbuchse 18 ist in eine Ausformung des Spalttopfes 15 eingepreßt. Zur Abdichtung des Pumpengehäuses 4 gegenüber dem Lagerschild 17 wird eine Ringdichtung 19 eingesetzt.The pump shown is a Wet rotor pump, in which the rotor 3 from the stator 14 by a Can 15 are separated. The containment shell 15 is on the integrally formed on a bearing bracket 16 receiving bearing plate 17. The bearing bracket carries one of two bushings 18 in which wave 2 is running. The other bearing bush 18 is in one Forming the containment shell 15 pressed. To seal the Pump housing 4 opposite the end shield 17 is a Ring seal 19 used.

Die in Figur 2 gezeigte Kreiselpumpe hat eine einteilige aus Metall geformte insbesondere aus Blech gezogene oder druckgegosse Basisplatte 20 aus Metall, die auf ihrer hydraulischen" Seite eine die Laufradkammer abdeckende aus Kunststoff gefertigte Gehäuseschale 21 trägt. Dabei ist die auf die Basisplatte 20 aufgesetzte Gehäuseschale 21 über einen Dichtring 22 abgedichtet. Die Gehäuseschale 21 weist einen zentralen Saugstutzen 5 und einen nicht dargestellten Druckstutzen auf. Im Spiralraum liegt zur Verbesserung der hydraulischen Eigenschaften ein Element 23 ein.The centrifugal pump shown in FIG. 2 has a one-piece metal base plate 20, which is formed from metal, in particular drawn or die-cast, on its hydraulic "side carries a plastic housing shell 21 covering the impeller chamber. The housing shell 21 placed on the base plate 20 is sealed by a sealing ring 22. The housing shell 21 has a central suction nozzle 5 and a pressure nozzle (not shown). In the spiral space there is an improvement an element 23 of the hydraulic properties.

Die Basisplatte 20 weist auf der dem Laufrad 1 abgewandten elektrischen" Seite eine topfförmige Halterung 24 zu Einschieben des Stators 29 auf. Auf der elektrischen Seite ist ein Elektronikmodul 25 in Wärmekontakt auf eine Montagefläche 26 der Basisplatte 20 aufgesetzt. Das Elektronikmodul 25 wird über einen Anschlußstecker 27 kontaktiert, der auf der hydraulischen Seite der Basisplatte 20 anbracht ist.The base plate 20 faces the one facing away from the impeller 1 electrical "side a pot-shaped holder 24 for inserting the stator 29. On the electrical side, an electronic module 25 is placed in thermal contact on a mounting surface 26 of the base plate 20. The electronic module 25 is contacted via a connector 27 on the hydraulic side of the base plate 20 is attached.

Der Spalttopf 15 wird in einer an die Basisplatte 20 angeformte Hülse 28 vermittels eines Dichtringes gehalten und wird von einem Lagerträger 30 verklemmt. Auf die Basisplatte 20 ist ein aus Kunststoff geformter Gehäusedeckel 31 aufgesetzt, der alle auf der elektrischen Seite der Basisplatte 20 angeordneten Komponenten abdeckt.The containment shell 15 is attached to the base plate 20 molded sleeve 28 held by means of a sealing ring and is jammed by a bearing bracket 30. On the base plate 20 is a plastic housing cover 31 put on, all on the electrical side of the Base plate 20 covers arranged components.

Claims (13)

Von einem drehzahlgesteuerten Elektromotor betriebene naßlaufende Kreiselpumpe, insbesondere für den Einsatz in Heiz- und/oder Kühlkreisläufen, mit einem eine Steuerelektronik aufweisenden Elektronikmodul und mit einem eine Spiralkammer umgebenden Pumpengehäuse, das einen zentralen Saugstutzen und ein Druckstutzen aufweist,
dadurch gekennzeichnet, daß das Pumpengehäuse (4,20) eine Aufnahme (8,26) aufweist, auf der das Elektronikmodul (7,25) in wärmeleitendem Kontakt zu dem in der Spiralkammer (6) befindlichen Pumpmedium befestigbar ist.Wet-running centrifugal pump operated by a speed-controlled electric motor, in particular for use in heating and / or cooling circuits, with an electronic module having control electronics and with a pump housing surrounding a spiral chamber, which has a central suction port and a pressure port,
characterized in that the pump housing (4, 20) has a receptacle (8, 26) on which the electronics module (7, 25) can be fastened in heat-conducting contact with the pumping medium located in the spiral chamber (6). Kreiselpumpe nach Anspruch 1,
dadurch gekennzeichnet, daß das Pumpengehäuse (4) mit der Aufnahme (8) einstückig aus Metall geformt ist.Centrifugal pump according to claim 1,
characterized in that the pump housing (4) with the receptacle (8) is integrally formed from metal. Kreiselpumpe nach Anspruch 2,
dadurch gekennzeichnet, daß die Aufnahme (8) einen von Wandungen des Pumpengehäuses umgebenen insbesondere rechteckigen Aufnahmeraum aufweist, in den das Elektronikmodul (7) über eine Öffnung (10) einsetzbar ist.Centrifugal pump according to claim 2,
characterized in that the receptacle (8) has a receptacle, in particular rectangular, surrounded by walls of the pump housing, into which the electronics module (7) can be inserted via an opening (10). Kreiselpumpe nach Anspruch 3,
dadurch gekennzeichnet, daß das Elektronikmodul (10) mit einer Grundfläche, insbesondere vermittels wärmeleitender Paste, gegen eine Wandung (9) des Aufnahmeraums anliegt. Centrifugal pump according to claim 3,
characterized in that the electronics module (10) rests with a base, in particular by means of heat-conducting paste, against a wall (9) of the receiving space. Kreiselpumpe nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, daß der Aufnahmeraum über einen Verbindungskanal (12) mit dem Innenraum des Motorgehäuses verbunden ist, wobei die elektrische Kontaktierung zwischen den Statorwindungen (11) und dem Elektronikmodul (7) über den Verbindungskanal (12) geschieht.Centrifugal pump according to one of the preceding claims,
characterized in that the receiving space is connected to the interior of the motor housing via a connecting channel (12), the electrical contact between the stator windings (11) and the electronic module (7) taking place via the connecting channel (12). Kreiselpumpe nach einem der vorherigen Ansprüche,
gekennzeichnet durch eine die Aufnahme (26) ausbildende Basisplatte (20), die eine Rückwand des vom Medium durchströmten Pumpengehäuses bildet, wobei die Basisplatte (20) einteilig ist und einerseits eine das Pumpengehäuse abschließende Gehäuseschale (21) und andererseits den Stator (24) trägt und wobei die Pumpe mittels der Basisplatte (20) halterbar ist.Centrifugal pump according to one of the preceding claims,
characterized by a base plate (20) forming the receptacle (26), which forms a rear wall of the pump housing through which the medium flows, the base plate (20) being in one piece and carrying a housing shell (21) which closes the pump housing on the one hand and the stator (24) on the other hand and wherein the pump can be held by means of the base plate (20). Kreiselpumpe nach Anspruch 6,
dadurch gekennzeichnet, daß die Basisplatte (20) aus Metall insbesondere aus Blech gezogen oder druckgegossen ist.Centrifugal pump according to claim 6,
characterized in that the base plate (20) is drawn or die-cast from metal, in particular from sheet metal. Kreiselpumpe nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, daß die Basisplatte (20) auf der dem Laufrad (1) abgewandten Seite eine ebene Montagefläche (26) aufweist, auf der das Elektronikmodul (25) gehalten ist.Centrifugal pump according to one of the preceding claims,
characterized in that the base plate (20) on the side facing away from the impeller (1) has a flat mounting surface (26) on which the electronic module (25) is held. Kreiselpumpe nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, daß der Elektromotor ein elektronisch kommutierter Gleichstrommotor ist.Centrifugal pump according to one of the preceding claims,
characterized in that the electric motor is an electronically commutated DC motor. Kreiselpumpe nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, daß das Elektronikmodul mehrere Leistungshalbleiter, insbesondere Leistungstransistoren, aufweist. Centrifugal pump according to one of the preceding claims,
characterized in that the electronic module has a plurality of power semiconductors, in particular power transistors. Kreiselpumpe nach einem der vorherigen Ansprüche,
gekennzeichnet durch Befestigungsmittel, mit denen die Pumpe insbesondere über einen Anschlußflansch direkt an dem zu bepumpenden System anbringbar ist.Centrifugal pump according to one of the preceding claims,
characterized by fasteners with which the pump can be attached directly to the system to be pumped, in particular via a connecting flange. Kreiselpumpe nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, daß die Befestigungsmittel an der Basisplatte (20) angebracht sind.Centrifugal pump according to one of the preceding claims,
characterized in that the fastening means are attached to the base plate (20). Verwendung der Kreiselpumpe nach einem der vorherigen Ansprüche zur Förderung des Mediums im Kühlkreislauf eines Kraftfahrzeuges.Use of the centrifugal pump according to one of the previous ones Requirements to promote the medium in the cooling circuit of a motor vehicle.
EP00113847A 1999-09-13 2000-06-30 Pump housing with integrated electronics Withdrawn EP1085217A3 (en)

Applications Claiming Priority (2)

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DE19943577A DE19943577A1 (en) 1999-09-13 1999-09-13 Pump housing with integrated electronics
DE19943577 1999-09-13

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EP1085217A3 EP1085217A3 (en) 2001-04-18

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EP1398511A1 (en) * 2002-09-13 2004-03-17 Oliver Laing Local cooling system
WO2004033241A1 (en) * 2002-10-04 2004-04-22 Siemens Aktiengesellschaft Motor vehicle cooling device with a cooling channel for a coolant
WO2004105130A1 (en) * 2003-05-26 2004-12-02 Matsushita Electric Industrial Co., Ltd. Cooling device with a centrifugal pump for cooling electronic devices
EP1635064A1 (en) * 2004-09-14 2006-03-15 Dana Automotive Limited Pump assembly
EP1775478A2 (en) * 2005-10-13 2007-04-18 TCG Unitech Systemtechnik GmbH Coolant pump
DE102010054084A1 (en) 2010-12-10 2012-06-14 Volkswagen Aktiengesellschaft Coolant pump of impeller for internal combustion engine, has intake passage having flow guide which forms rotationally-prone vortex of sucked fluid, whose rotation axis is parallel to rotational axis of impeller
CN104471252A (en) * 2012-07-16 2015-03-25 麦格纳动力系美国有限公司 Canned electric water pump with structural can and rubber outer casing
CN110168229A (en) * 2017-02-22 2019-08-23 信浓绢糸株式会社 Electrodynamic pump

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WO2004033241A1 (en) * 2002-10-04 2004-04-22 Siemens Aktiengesellschaft Motor vehicle cooling device with a cooling channel for a coolant
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EP1635064A1 (en) * 2004-09-14 2006-03-15 Dana Automotive Limited Pump assembly
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CN104471252A (en) * 2012-07-16 2015-03-25 麦格纳动力系美国有限公司 Canned electric water pump with structural can and rubber outer casing
CN104471252B (en) * 2012-07-16 2017-12-01 麦格纳动力系美国有限公司 Sealing electric water pump with structural capsul and rubbery outer cover
CN110168229A (en) * 2017-02-22 2019-08-23 信浓绢糸株式会社 Electrodynamic pump

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DE19943577A1 (en) 2001-03-15

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