EP1526284A2 - Elektrische Antriebseinrichtung - Google Patents
Elektrische Antriebseinrichtung Download PDFInfo
- Publication number
- EP1526284A2 EP1526284A2 EP04450092A EP04450092A EP1526284A2 EP 1526284 A2 EP1526284 A2 EP 1526284A2 EP 04450092 A EP04450092 A EP 04450092A EP 04450092 A EP04450092 A EP 04450092A EP 1526284 A2 EP1526284 A2 EP 1526284A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- commutator
- drive device
- rotor
- winding part
- brush holder
- 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
Links
Images
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
- F04D13/064—Details of the magnetic circuit
-
- 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
- F04D13/0666—Units comprising pumps and their driving means the pump being electrically driven the motor being of the plane gap type
Definitions
- the invention relates to an electric drive device for a runner, in particular for a rotatably mounted pump impeller of a centrifugal pump, with a the rotating part containing wet area and one of this separate drying area.
- a pump impeller containing Wet area usually by sealing elements, such as mechanical seals or the like of an electric drive-containing Dry area separated.
- sealing elements such as mechanical seals or the like of an electric drive-containing Dry area separated.
- inside-out motors are known in which an outer Rotor is arranged around an inner stator.
- Inside-out engines are for example by the documents US 5,986,379 A, US 6,239,532 B1 and No. 6,286,199 B1, and are usually commutated electronically Electric motors executed.
- DE 196 27 854 A1 shows a pump motor with stator magnet system, the from the rotor magnet system located in the wet area by a sealing Membrane is separated.
- the device further comprises a commutator ring and two collector brushes each in a brush holder, which is rotatably mounted and is driven by the magnetic force from the rotor.
- JP 63-154037 A shows a pump motor in Axialspaltaus Replacement, in the the wet area of the dry area via one of the Statorjochanowski associated Disc is separated.
- US 3,870,914 A shows a pump motor with rotating brush arrangement, in which the brush drive via a rotor with another fixed Commutator is operable.
- this is achieved in that at least one fixed, an electromagnetic rotating field generating winding part of the wet area separates from the dry area, wherein the windings of the winding part with a Commutator are conductively connected, and that the rotatable component at least on a side facing the winding part, a first magnetic field device has, which cooperates with the winding part by an electric motor.
- the commutator device is preferably arranged in the dry area.
- the commutator designed as, preferably fixed, mechanical commutator is, wherein advantageously in the dry area at least one of the mechanical Commutator contacting, circumferentially trained brush pair arranged is.
- the rotor and / or the brush holder Is rotatably mounted on a fixed axis, wherein preferably the Winding part is firmly connected to the axis.
- the fixed, liquid and gas tight fixed to the axis Winding part which may be formed as a pot or as a disc separates the wet area of the dry area by a liquid- and gas-tight contacting to the housing.
- the power supply to the winding of the winding part takes place over the collector.
- the brush holder drive a rotor with rotor windings and a having associated with these rotatable auxiliary commutator, which of a fixed auxiliary brush pair is contacted, with a preferably for the rotor fixed second magnetic field and feedback system is provided.
- the brush holder drive thus has its own, of the winding disc independent separate secondary drive on which the brushes of the prime mover drives. It is provided that the brush pair preferably via Slip rings with a load voltage source and the auxiliary brush pair with a Control voltage source is conductively connected. From the constant power supply from the load voltage source is without the use of control electronics the power required for the particular load condition posed.
- the speed control of the pump impeller is via the Auxiliary drive, with its auxiliary brushes at the control voltage of the variable Control voltage source is applied.
- the secondary drive can use a conventional Motor electronics are controlled.
- the required for the secondary drive Performance is only a fraction of the total system needed Performance, for example about 10% of the total power. Thus, can instead of a complex and expensive power electronics a simpler and cheaper control unit to be used.
- the commutator as Flat commutator can be formed.
- the flat commutator offers together with the arranged in the axial direction brush pair has the advantage that the Brushes can not be lifted by centrifugal force effect.
- the Commutator is designed as an electronic commutator, wherein the electronic commutator is preferably integrated in the housing.
- the first and / or second Magnetic field device is formed by a permanent magnetic material. This makes it possible to achieve a synchronous drive of the rotor.
- the first and / or second magnetic field device is formed by at least one winding. In this asynchronous version can achieve cost advantages over the synchronous version.
- the figures each show a housing 1 with an electric drive device 2 for example connected to a pump impeller, by a rotor 3 formed rotatable component. It is the runner 3-containing Wet area 4 from the drying area 5 by a winding part 6 liquid-tight separated.
- the winding part 6 is connected to a fixed axis 7.
- the rotor 3 is rotatably mounted with respect to the axis 7, wherein the bearings denoted by reference numeral 8.
- the static winding part 6 has windings 9, which with a commutator 10 in a conductive connection stand.
- On the rotor 3 is on the side of the winding part 6, a first magnetic field device 16 attached. In the winding part 6, a rotating field is generated, which drives the rotor 3 through the magnetic field device 16.
- the magnetic field device 16 can be made by permanent magnetic material or by Windings be formed.
- the commutator device 10 is provided by a mechanical Commutator 10a formed.
- Reference numeral 8a is the bearing of the brush holder 13 referred to the axis 7.
- the brush holder drive 17 is formed as a separate secondary drive with its own rotor 21 with rotor windings, which is firmly connected to the brush holder 13 and in this way the brushes 11, 12 drives for the prime mover.
- the brushes 11, 12 have their own power supply by being connected via slip rings 14, 15 with a load voltage source U L.
- the auxiliary brushes 22, 23 for the brush holder drive 17 are fixed and connected to a control voltage source U st .
- the auxiliary commutator 24 of the brush holder drive 17 is rotatable about the axis 7.
- Reference numeral 25 designates a leftward conclusion of the winding disk 6.
- FIGS. 3 and 4 show alternative embodiments in which the commutator device 10 is formed by an electronic commutator 10b.
- the electronic commutator 10b has control lines 18 and is over Lines 19 connected to a DC source.
- the electronic Commutator 10b converts the DC voltage into a multi-phase AC voltage converted, whereby in the winding part 6 a rotating field is built up.
- the winding part 6 can be used as a disk 6a (FIGS. 1 and 3) or as a pot 6b (FIGS. 2 and 4).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Dc Machiner (AREA)
- Power Steering Mechanism (AREA)
- Control Of Electric Motors In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- Fig. 1
- eine erfindungsgemäße Antriebseinrichtung in einer ersten Ausführungsvariante in einem Längsschnitt,
- Fig. 2
- eine erfindungsgemäße Antriebseinrichtung in einer zweiten Ausführungsvariante in einem Längsschnitt,
- Fig. 3
- eine erfindungsgemäße Antriebseinrichtung in einer dritten Ausführungsvariante in einem Längsschnitt und
- Fig. 4
- eine erfindungsgemäße Antriebseinrichtung in einer vierten Ausführungsvariante in einem Längsschnitt.
Claims (13)
- Elektrische Antriebseinrichtung (2) für einen Läufer (3), insbesondere zum Antrieb eines drehbar gelagerten Pumpenlaufrad einer Kreiselpumpe, mit einem den Läufer (3) beinhaltenden Nassbereich (4) und einem von diesem getrennten Trockenbereich (5), dadurch gekennzeichnet, dass zumindest ein feststehender, ein elektromagnetisches Drehfeld erzeugender Wicklungsteil (6) den Nassbereich (4) vom Trockenbereich (5) trennt, wobei die Wicklungen (9) des Wicklungsteiles (6) mit einer Kommutatoreinrichtung (10) verbunden sind, und dass der drehbare Bauteil zumindest auf eine dem leitend Wicklungsteil (6) zugewandten Seite eine erste Magnetfeldeinrichtung (16) aufweist, welche mit dem Wicklungsteil (6) elektromotorisch zusammenwirkt.
- Antriebseinrichtung (2) nach Anspruch 1, dadurch gekennzeichnet, dass die Kommutatoreinrichtung (10) im Trockenbereich (5) angeordnet ist.
- Antriebseinrichtung (2) nach Anspruch 2, dadurch gekennzeichnet, dass die Kommutatoreinrichtung (10) als, vorzugsweise feststehender, mechanischer Kommutator (10a) ausgebildet ist.
- Antriebseinrichtung nach Anspruch 3, dadurch gekennzeichnet, dass im Trockenbereich (5) zumindest ein den mechanischen Kommutator (10a) kontaktierendes, umlaufend ausgebildetes Bürstenpaar (11, 12) angeordnet ist, wobei vorzugsweise das Bürstenpaar (11, 12) von einem drehbaren Bürstenhalter (13) gehalten ist, welcher Bürstenhalter (13) durch einen Bürstenhalterantrieb (17) angetrieben ist.
- Antriebseinrichtung (2) nach Anspruch 4, dadurch gekennzeichnet, dass der Bürstenhalterantrieb (17) einen Rotor (21) mit Rotorwicklungen und einen mit diesen verbundenen drehbaren Hilfskommutator (24) aufweist, welcher von einem vorzugsweise feststehenden Hilfsbürstenpaar (22, 23) kontaktiert ist, wobei für den Rotor (21) eine feststehende zweite Magnetfeldeinrichtung (26) vorgesehen ist.
- Antriebseinrichtung (2) nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass das Bürstenpaar (11, 12) vorzugsweise über Schleifringe (14, 15) mit einer Lastspannungsquelle (UL) und das Hilfsbürstenpaar (22, 23) mit einer Steuerspannungsquelle (Ust) leitend verbunden ist.
- Antriebseinrichtung (2) nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass der mechanische Kommutator (10a) als Flachkommutator ausgebildet ist.
- Antriebseinrichtung (2) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Läufer (3) und/oder der Bürstenhalter (13) auf einer feststehenden Achse (7) drehbar gelagert ist, wobei vorzugsweise der Wicklungsteil (6) fest mit der Achse (7) verbunden ist.
- Antriebseinrichtung (2) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kommutatoreinrichtung (10) als elektronischer Kommutator (10b) ausgebildet ist, wobei der elektronische Kommutator (10b) vorzugsweise in das Gehäuse (1) integriert ist.
- Antriebseinrichtung (2) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Wicklungsteil (6) im Wesentlichen als Scheibe (6a) ausgebildet ist.
- Antriebseinrichtung (2) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Wicklungsteil (6) im Wesentlichen als Topf (6b) ausgebildet ist.
- Antriebseinrichtung (2) nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die erste und/oder zweite Magnetfeldeinrichtung (16, 26) durch ein permanent magnetisches Material gebildet ist.
- Antriebseinrichtung (2) nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die erste und/oder zweite Magnetfeldeinrichtung (16, 26) durch zumindest eine Wicklung gebildet ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT04450092T ATE343065T1 (de) | 2003-10-17 | 2004-04-22 | Elektrische antriebseinrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0164903A AT413907B (de) | 2003-10-17 | 2003-10-17 | Elektrische antriebseinrichtung |
AT16492003 | 2003-10-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1526284A2 true EP1526284A2 (de) | 2005-04-27 |
EP1526284A3 EP1526284A3 (de) | 2005-05-18 |
EP1526284B1 EP1526284B1 (de) | 2006-10-18 |
Family
ID=34382395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04450092A Expired - Lifetime EP1526284B1 (de) | 2003-10-17 | 2004-04-22 | Elektrische Antriebseinrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1526284B1 (de) |
AT (2) | AT413907B (de) |
DE (1) | DE502004001784D1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2604849A1 (de) * | 1976-02-07 | 1977-08-11 | Pierburg Autogeraetebau Kg | Elektromotorische brennstoffpumpe |
US6071093A (en) * | 1996-10-18 | 2000-06-06 | Abiomed, Inc. | Bearingless blood pump and electronic drive system |
WO2001038741A1 (de) * | 1999-11-24 | 2001-05-31 | Robert Bosch Gmbh | Flüssigkeitspumpe mit einem motorgehäuse und verfahren zur herstellung eines motorgehäuses |
US6254359B1 (en) * | 1996-05-10 | 2001-07-03 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method for providing a jewel bearing for supporting a pump rotor shaft |
WO2002051658A2 (de) * | 2000-12-22 | 2002-07-04 | Webasto Thermosysteme International Gmbh | Fahrzeugheizgerät mit integrierter wärmeträger-umwälzpumpe |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3802804A (en) * | 1967-07-21 | 1974-04-09 | March Mfg Co | Magnetically coupled pump structure |
US3870914A (en) * | 1971-06-28 | 1975-03-11 | Alan J Walker | Current collection means for electric motors |
GB1496035A (en) * | 1974-07-18 | 1977-12-21 | Iwaki Co Ltd | Magnetically driven centrifugal pump |
DE2646761A1 (de) * | 1976-10-16 | 1978-04-20 | Werz Furnier Sperrholz | Verfahren zur herstellung gekruemmter span- oder faserplatten |
US4111614A (en) * | 1977-01-24 | 1978-09-05 | Micropump Corporation | Magnetically coupled gear pump construction |
US4283645A (en) * | 1978-10-06 | 1981-08-11 | Hofmann Kurt H | Electrical drive motor, in particular for water pumps in the field of aquaria |
JPH0771385B2 (ja) * | 1986-12-17 | 1995-07-31 | 株式会社安川電機 | キヤンドモ−タ |
DE19627854A1 (de) * | 1996-07-11 | 1998-01-22 | Linear Anstalt | Gleichstrommotor |
US5986379A (en) * | 1996-12-05 | 1999-11-16 | General Electric Company | Motor with external rotor |
US5962938A (en) * | 1997-10-21 | 1999-10-05 | General Electric Company | Motor with external rotor |
-
2003
- 2003-10-17 AT AT0164903A patent/AT413907B/de not_active IP Right Cessation
-
2004
- 2004-04-22 DE DE502004001784T patent/DE502004001784D1/de not_active Expired - Lifetime
- 2004-04-22 AT AT04450092T patent/ATE343065T1/de not_active IP Right Cessation
- 2004-04-22 EP EP04450092A patent/EP1526284B1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2604849A1 (de) * | 1976-02-07 | 1977-08-11 | Pierburg Autogeraetebau Kg | Elektromotorische brennstoffpumpe |
US6254359B1 (en) * | 1996-05-10 | 2001-07-03 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method for providing a jewel bearing for supporting a pump rotor shaft |
US6071093A (en) * | 1996-10-18 | 2000-06-06 | Abiomed, Inc. | Bearingless blood pump and electronic drive system |
WO2001038741A1 (de) * | 1999-11-24 | 2001-05-31 | Robert Bosch Gmbh | Flüssigkeitspumpe mit einem motorgehäuse und verfahren zur herstellung eines motorgehäuses |
WO2002051658A2 (de) * | 2000-12-22 | 2002-07-04 | Webasto Thermosysteme International Gmbh | Fahrzeugheizgerät mit integrierter wärmeträger-umwälzpumpe |
Also Published As
Publication number | Publication date |
---|---|
DE502004001784D1 (de) | 2006-11-30 |
EP1526284B1 (de) | 2006-10-18 |
EP1526284A3 (de) | 2005-05-18 |
ATE343065T1 (de) | 2006-11-15 |
AT413907B (de) | 2006-07-15 |
ATA16492003A (de) | 2005-10-15 |
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