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DE10316752A1 - Electric machine especially a three phase current generator for a vehicle, has iron components and minus sliding contact elements conductively connected together - Google Patents

Electric machine especially a three phase current generator for a vehicle, has iron components and minus sliding contact elements conductively connected together Download PDF

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Publication number
DE10316752A1
DE10316752A1 DE10316752A DE10316752A DE10316752A1 DE 10316752 A1 DE10316752 A1 DE 10316752A1 DE 10316752 A DE10316752 A DE 10316752A DE 10316752 A DE10316752 A DE 10316752A DE 10316752 A1 DE10316752 A1 DE 10316752A1
Authority
DE
Germany
Prior art keywords
sliding contact
electrical machine
minus
machine according
iron parts
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Withdrawn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
DE10316752A
Other languages
German (de)
Inventor
Herbert Labitzke
Walter Csicser
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE10316752A priority Critical patent/DE10316752A1/en
Publication of DE10316752A1 publication Critical patent/DE10316752A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/02—Connections between slip-rings and windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/14—Fastenings of commutators or slip-rings to shafts

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The electric machine has a housing in which an electromagnetically excitable rotor is rotatably mounted. The rotor has a coil to which current can be applied and an iron component. Sliding contact elements are provided to provide current to the coil. The rotor is driven by a gear element through which an electrostatic voltage is generated between the rotor and the housing. The iron component and the sliding contact elements are electrically conductively connected together.

Description

Die erfindungsgemäße elektrische Maschine, hier ein Drehstromgenerator für Kraftfahrzeuge, siehe auch 1, hat einen Ständer 4, der mittels zweier Lagerschilde, einem Antriebslagerschild 2 und einem Schleifringlagerschild 6 getragen wird. Das Antriebslagerschild 2 und das Schleifringlagerschild 6 bilden das Gehäuse. Die Welle 106 ist über ein Antriebselement 1 und ein Getriebeelement 124 bspw. einen Riemen antreibbar, durch das zusätzlich eine elektrostatische Spannung zwischen dem Läufer 5 und dem Gehäuse erzeugbar ist.The electrical machine according to the invention, here a three-phase generator for motor vehicles, see also 1 , has a stand 4 which by means of two end shields, a drive end shield 2 and a slip ring end shield 6 will be carried. The drive end shield 2 and the slip ring end shield 6 form the housing. The wave 106 is via a drive element 1 and a gear element 124 For example, a belt can be driven, which additionally creates an electrostatic voltage between the rotor 5 and the housing can be generated.

Der elektromagnetisch erregbare Läufer 5 wird durch je ein Wälzlager 100 in den beiden Lagerschilden gestützt.The electromagnetically excitable runner 5 is by a roller bearing 100 supported in the two end shields.

Hinter dem Schleifringlagerschild 6, also außerhalb des Gehäuses befindet sich ein Gleichrichter 9 und ein die elektromagnetische Erregung des Läufers 5 regelnder elektronischer Feldregler 7, der über einen Bürstenhalter 103 und darin angeordnete Büsten zwei Schleifringe 8 kontaktiert.Behind the slip ring end shield 6 , so there is a rectifier outside the housing 9 and one the electromagnetic excitation of the runner 5 regulating electronic field controller 7 over a brush holder 103 and busts arranged therein two slip rings 8th contacted.

Der Läufer 5 weist unter anderem die Welle 106 auf, auf der zwei Klauenpolplatinen 109, ein Kern 112 und eine Spule 115 befestigt sind. Die Schleifringe 8 sind auf dem Läufer 5 befestigt. Von jedem Schleifring 8 geht je ein Leiter 118 aus, der jeweils an seinem von den Schleifringen 8 abgewandten Ende mit einem Ende 121 der Spule 115 elektrisch leitfähig kontaktiert.The runner 5 points among other things the wave 106 on, on the two claw pole boards 109 , a core 112 and a coil 115 are attached. The slip rings 8th are on the runner 5 attached. From every slip ring 8th one leader goes 118 from each of its slip rings 8th opposite end with one end 121 the coil 115 contacted electrically conductive.

Die Welle 106, die zwei Klauenpolplatinen 109 und der Kern 112 bilden eine Gruppe von Bauteilen, die hier als Eisenteile bezeichnet sind. Die Schleifringe 8 sind Gleitkontaktelemente, von denen eines ein Minusgleitkontaktelement und das andere ein Plusgleitkontaktelement ist.The wave 106 who have favourited Two Claw Pole Boards 109 and the core 112 form a group of components, which are referred to here as iron parts. The slip rings 8th are sliding contact elements, one of which is a minus sliding contact element and the other is a positive sliding contact element.

Ist die elektrische Maschine in Betrieb, liegen durch die Ausführung des Feldreglers 7 zwischen dem Minusgleitkontaktelement und Masse üblicherweise ca. 0,5 Volt an.If the electrical machine is in operation, the field controller is installed 7 between the minus sliding contact element and ground usually about 0.5 volts.

2 zeigt eine sogenannte Schleifringanordnung der in 1 dargestellten Maschine mir den Gleitkontaktelementen bzw. Schleifringen 8. Es ist vorgesehen, dass die Eisenteile und das Minusgleitkontaktelement elektrisch leitfähig miteinander verbunden sind, damit die durch das Getriebeelement 124 erzeugbare elektrostatische Spannung keine Schäden durch Kriechströme beispielsweise durch Kugellager erzeugt. Das Minusgleitkontaktelement ist in diesem Fall der linke der beiden Schleifringe 8. 2 shows a so-called slip ring arrangement of the in 1 machine shown with the sliding contact elements or slip rings 8th , It is provided that the iron parts and the minus sliding contact element are connected to one another in an electrically conductive manner, so that the through the gear element 124 Generable electrostatic voltage no damage caused by leakage currents, for example, caused by ball bearings. The minus sliding contact element is in this case the left of the two slip rings 8th ,

Das Minusgleitkontaktelement und eine mit der Spule 115 verbundene Leiterschiene 127 sind im gezeigten Ausführungsbeispiel von einem kunststoffhaltigen Spritzgussteil 130 gehalten, wobei zusätzlich zumindest ein weiteres Leiterelement 133 vom kunststoffhaltigen Spritzgussteil 130 umgeben ist, das die Eisenteile und das Minusgleitkontaktelement elektrisch leitfähig miteinander verbindet. In 2 sind zwei weitere Leiterelemente 133 gezeigt und verwendet.The minus sliding contact element and one with the coil 115 connected conductor rail 127 are in the illustrated embodiment of a plastic-containing injection molded part 130 held, with in addition at least one further conductor element 133 from the plastic-containing injection molded part 130 is surrounded, which connects the iron parts and the minus sliding contact element in an electrically conductive manner. In 2 are two other conductor elements 133 shown and used.

Es ist vorgesehen, dass das weitere Leiterelement 133 einen ausgeprägten Widerstand 136 kontaktiert. Die Bezeichnung ausgeprägter Widerstand bedeutet hier, dass der elektrische Widerstand pro Längeneinheit höher als der der benachbarten Leiterelemente 133 ist.It is envisaged that the further conductor element 133 a strong resistance 136 contacted. The term pronounced resistance here means that the electrical resistance per unit length is higher than that of the adjacent conductor elements 133 is.

Nach einer weiteren Ausgestaltung der elektrische Maschine ist vorgesehen, dass das weitere Leiterelement 133 aus einem Widerstandsmaterial besteht, so dass die elektrische Verbindung zwischen Eisenteilen und Schleifring 8 nur aus dem aus Widerstandsmaterial gebildeten Leiterelement 133 gebildet ist.According to a further embodiment of the electrical machine, it is provided that the further conductor element 133 consists of a resistance material, so that the electrical connection between iron parts and slip ring 8th only from the conductor element formed from resistance material 133 is formed.

Des Weiteren ist es auch möglich, zwischen nahe an einer Klauenpolplatine 109 gelegenen Bereichen der Leiterschiene 127 und der Klauenpolplatine 109 als einem Eisenteil den Widerstand 136 zu befestigen. Der Widerstand 136 kann dann z. B. Plattenform besitzen.Furthermore, it is also possible to close between a claw pole plate 109 located areas of the conductor rail 127 and the claw pole board 109 resistance as an iron part 136 to fix. The resistance 136 can then z. B. have plate shape.

In einem weiteren Ausführungsbeispiel ist vorgesehen, dass die Eisenteile und das Minusgleitkontaktelement mittels des kunststoffhaltigen Spritzgussteils elektrisch leitfähig miteinander verbinden sind, wobei der Kunststoff des Spritzgussteils 130 elektrisch leitfähige Anteile aufweist.In a further exemplary embodiment it is provided that the iron parts and the minus sliding contact element are connected to one another in an electrically conductive manner by means of the plastic-containing injection molded part, the plastic of the injection molded part 130 has electrically conductive portions.

Die elektrisch leitfähigen Anteile sind beispielsweise aus Graphit.The electrically conductive Parts are made of graphite, for example.

Um an der elektrischen Maschine Schäden zu vermeiden ist vorgesehen, dass der elektrische Widerstand zwischen den Eisenteilen und dem Minusgleitkontaktelement mindestens 10 Ohm beträgt, bevorzugt wird ein Widerstand von mindestens 100 Ohm.Around damage to the electrical machine Avoid that the electrical resistance between the iron parts and the minus sliding contact element at least 10 ohms is preferred becomes a resistance of at least 100 ohms.

Claims (7)

Elektrische Maschine, insbesondere Drehstromgenerator für Kraftfahrzeuge, mit einem in einem Gehäuse drehbar gelagerten elektromagnetisch erregbaren Läufer, der sowohl zumindest eine bestrombare Spule als auch Eisenteile hat, mit Gleitkontaktelementen, die zur Stromversorgung der zumindest einen Spule dienen, wobei der Läufer durch ein Getriebeelement antreibbar ist, durch das eine elektrostatische Spannung zwischen dem Läufer und dem Gehäuse erzeugbar ist, dadurch gekennzeichnet, dass die Eisenteile und ein Minusgleitkontaktelement elektrisch leitfähig miteinander verbunden sind.Electrical machine, in particular a three-phase generator for motor vehicles, with an electromagnetically excitable rotor which is rotatably mounted in a housing and which has both at least one current-carrying coil and iron parts, with sliding contact elements which serve to supply power to the at least one coil, the rotor being drivable by a gear element , by which an electrostatic voltage can be generated between the rotor and the housing, characterized in that the iron parts and a minus slide contact ment are electrically connected to each other. Elektrische Maschine nach Anspruch 1, dadurch gekennzeichnet, dass das Minusgleitkontaktelement und eine mit der Spule verbundene Leiterschiene von einem kunststoffhaltigen Spritzgussteil gehalten ist, wobei zusätzlich ein weiteres Leiterelement vom kunststoffhaltigen Spritzgussteil umgeben ist, das die Eisenteile und das Minusgleitkontaktelement elektrisch leitfähig miteinander verbindet.Electrical machine according to claim 1, characterized in that the minus sliding contact element and one connected to the coil Conductor rail held by a plastic-containing injection molded part is, in addition another conductor element from the plastic-containing injection molded part is surrounded, the iron parts and the minus sliding contact element electrically conductive connects with each other. Elektrische Maschine nach Anspruch 2, dadurch gekennzeichnet, dass das weitere Leiterelement einen ausgeprägten Widerstand kontaktiert.Electrical machine according to claim 2, characterized in that the further conductor element contacts a pronounced resistance. Elektrische Maschine nach Anspruch 2, dadurch gekennzeichnet, dass das weitere Leiterelement aus einem Widerstandsmaterial besteht.Electrical machine according to claim 2, characterized in that the further conductor element consists of a resistance material. Elektrische Maschine nach Anspruch 1, dadurch gekennzeichnet, dass die Eisenteile und das Minusgleitkontaktelement mittels des kunststoffhaltigen Spritzgussteils elektrisch leitfähig miteinander verbunden sind, wobei der Kunststoff des Spritzgussteils elektrisch leitfähige Anteile aufweist.Electrical machine according to claim 1, characterized in that the iron parts and the minus sliding contact element by means of plastic-containing injection molded part electrically connected are, the plastic of the injection molded part electrically conductive portions having. Elektrische Maschine nach Anspruch 5, dadurch gekennzeichnet, dass die elektrisch leitfähigen Anteile aus Graphit sind.Electrical machine according to claim 5, characterized in that the electrically conductive portions are made of graphite. Elektrische Maschine nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der elektrische Widerstand zwischen den Eisenteilen und dem Minusgleitkontaktelement mindestens 10 Ohm beträgt.Electrical machine according to one of the preceding Expectations, characterized in that the electrical resistance between the iron parts and the minus sliding contact element at least 10 ohms is.
DE10316752A 2003-04-10 2003-04-10 Electric machine especially a three phase current generator for a vehicle, has iron components and minus sliding contact elements conductively connected together Withdrawn DE10316752A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10316752A DE10316752A1 (en) 2003-04-10 2003-04-10 Electric machine especially a three phase current generator for a vehicle, has iron components and minus sliding contact elements conductively connected together

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10316752A DE10316752A1 (en) 2003-04-10 2003-04-10 Electric machine especially a three phase current generator for a vehicle, has iron components and minus sliding contact elements conductively connected together

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DE10316752A1 true DE10316752A1 (en) 2004-10-28

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003454A1 (en) * 2005-06-30 2007-01-11 Robert Bosch Gmbh Slip-ring module for a rotor of an electric machine electric machine with a slip ring module and method for production of a slip ring module
CN104067488A (en) * 2012-03-08 2014-09-24 三菱电机株式会社 Rotor for rotating electric machine
CN105281501A (en) * 2014-07-15 2016-01-27 罗伯特·博世有限公司 Electric machine with a resistor for dissipating shaft voltages
US20220231578A1 (en) * 2021-01-19 2022-07-21 Audi Ag Electrical machine comprising a cooling and or lubricating system having a wet chamber, motor vehicle having an electrical machine
DE10324619B4 (en) 2003-05-28 2023-07-27 Seg Automotive Germany Gmbh electrical machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131319B (en) * 1960-06-03 1962-06-14 D B A Division Ducellier Sa Attachment for revolving rectifier of direct current output alternating current machines
DE3818195A1 (en) * 1988-05-28 1989-12-07 Asea Brown Boveri SPINDLES WITH ELECTRICAL MOTOR FOR A SPINNING MACHINE
DE19804328A1 (en) * 1998-02-04 1999-08-12 Bosch Gmbh Robert Axial fixing for shaft accommodating roller bearing
US6356002B1 (en) * 1999-02-08 2002-03-12 Northrop Grumman Corporation Electrical slip ring having a higher circuit density

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131319B (en) * 1960-06-03 1962-06-14 D B A Division Ducellier Sa Attachment for revolving rectifier of direct current output alternating current machines
DE3818195A1 (en) * 1988-05-28 1989-12-07 Asea Brown Boveri SPINDLES WITH ELECTRICAL MOTOR FOR A SPINNING MACHINE
DE19804328A1 (en) * 1998-02-04 1999-08-12 Bosch Gmbh Robert Axial fixing for shaft accommodating roller bearing
US6356002B1 (en) * 1999-02-08 2002-03-12 Northrop Grumman Corporation Electrical slip ring having a higher circuit density

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10324619B4 (en) 2003-05-28 2023-07-27 Seg Automotive Germany Gmbh electrical machine
WO2007003454A1 (en) * 2005-06-30 2007-01-11 Robert Bosch Gmbh Slip-ring module for a rotor of an electric machine electric machine with a slip ring module and method for production of a slip ring module
CN101213709B (en) * 2005-06-30 2010-05-19 罗伯特·博世有限公司 Slip ring assembly for motor rotor, motor equipped with slip ring assembly, and manufacturing method of slip ring assembly
US7990016B2 (en) * 2005-06-30 2011-08-02 Robert Bosch Gmbh Slip-ring module for a rotor of an electric machine electric machine with a slip ring module and method for production of a slip ring module
CN104067488A (en) * 2012-03-08 2014-09-24 三菱电机株式会社 Rotor for rotating electric machine
CN105281501A (en) * 2014-07-15 2016-01-27 罗伯特·博世有限公司 Electric machine with a resistor for dissipating shaft voltages
CN105281501B (en) * 2014-07-15 2019-06-11 罗伯特·博世有限公司 Motors with resistors for deriving ripple voltage
US20220231578A1 (en) * 2021-01-19 2022-07-21 Audi Ag Electrical machine comprising a cooling and or lubricating system having a wet chamber, motor vehicle having an electrical machine
CN114825775A (en) * 2021-01-19 2022-07-29 奥迪股份公司 Electric machine comprising a cooling and/or lubricating system with a wet space, motor vehicle with an electric machine
US12040691B2 (en) * 2021-01-19 2024-07-16 Audi Ag Electrical machine comprising a cooling and or lubricating system having a wet chamber, motor vehicle having an electrical machine
CN114825775B (en) * 2021-01-19 2025-10-31 奥迪股份公司 Electric machine comprising a cooling and/or lubricating system with a wet space, motor vehicle with an electric machine

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