DE102011080886A1 - Electric machine e.g. alternator, for motor car, has housings comprising end shields, and cooling body attached with fastening element comprising insulating part at one of end shields, where insulating part comprises sleeve part - Google Patents
Electric machine e.g. alternator, for motor car, has housings comprising end shields, and cooling body attached with fastening element comprising insulating part at one of end shields, where insulating part comprises sleeve part Download PDFInfo
- Publication number
- DE102011080886A1 DE102011080886A1 DE102011080886A DE102011080886A DE102011080886A1 DE 102011080886 A1 DE102011080886 A1 DE 102011080886A1 DE 102011080886 A DE102011080886 A DE 102011080886A DE 102011080886 A DE102011080886 A DE 102011080886A DE 102011080886 A1 DE102011080886 A1 DE 102011080886A1
- Authority
- DE
- Germany
- Prior art keywords
- insulating part
- electric machine
- heat sink
- end shields
- insulating
- 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- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
- H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
- H02K11/05—Rectifiers associated with casings, enclosures or brackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
Abstract
Description
Stand der TechnikState of the art
Zur Befestigung eines Kühlkörpers an der elektrischen Maschine an einem von deren Lagerschilden werden meistens Schrauben eingesetzt. In der Regel wird ein Kühlkörper mit „+“-Potential am Schleifringlagerschild befestigt. Der Kühlkörper muss vom „–“-Potential elektrisch isoliert werden. Dazu sind eine Vielzahl von Bauteilen beim bisherigen Vernietungsprozess erforderlich, was einerseits die Kosten ungünstig beeinflusst und andererseits zur Fertigungsproblemen führen kann. To attach a heat sink to the electric machine to one of the end shields usually screws are used. As a rule, a heat sink with "+" potential is attached to the slip ring bearing plate. The heat sink must be electrically isolated from the "-" potential. This requires a large number of components in the previous riveting process, which on the one hand adversely affects the costs and on the other hand can lead to production problems.
Darstellung der Erfindung Presentation of the invention
Erfindungsgemäß wird vorgeschlagen, unter Ausnutzung des Gleichteileprinzips, d.h. ohne große Modifikationen der involvierten Bauteile, den Kühlkörper derart an einem der Lagerschilde des Gehäuses der elektrischen Maschine zu befestigen, dass dieser vom betreffenden Lagerschild isoliert ist. Dazu werden in einzelne auf einem Lochkreis des Kühlkörpers angeordneten Bohrungen Isolierteile eingesetzt, die vorzugsweise aus einem elastische Eigenschaften aufweisenden Material gefertigt sind. Bei diesem Material handelt es sich beispielsweise um Elastomere, Gummi, Kautschuk oder auch Silikonkautschuk. According to the invention, it is proposed to use the common-part principle, i. without major modifications of the components involved, to attach the heat sink to one of the end shields of the housing of the electrical machine so that it is isolated from the relevant bearing plate. For this purpose, insulating parts are used in individual arranged on a bolt circle of the heat sink holes, which are preferably made of a material having elastic properties. This material is, for example, elastomers, rubber, rubber or silicone rubber.
Die verwendeten Isolierteile weisen bevorzugt einander gegenüberliegende Planflächen auf, die an den jeweiligen Stirnseiten eines Hülsenteiles des Isolierteiles ausgeführt sind. Die Planflächen können in identischen Dicken ausgebildet sein. Die beiden am erfindungsgemäß eingesetzten Isolierteil ausgebildeten Planflächen können auch eine jeweils unterschiedliche Dicke aufweisen. Aufgrund der elastischen Eigenschaften des eingesetzten Isolierteiles können diese in die einzelnen Bohrungen am Lochkreis des Kühlkörpers eingesetzt werden und werden aufgrund ihrer elastischen Eigenschaften durch die am Kühlkörper anliegenden Flächen der Planflächen in ihren Bohrungen gehalten, was die Montage nicht unerheblich erleichtert. Zudem werden die mechanischen Eigenschaften der Befestigungsverbindung zwischen dem Kühlkörper und dem betreffenden Lagerschild des Gehäuses der elektrischen Maschine verbessert. Neben einer Vermeidung bisher eingesetzter Nieten, lässt sich eine Verringerung der verwendeten Bauteileanzahl erzielen, wobei bei Einsatz eines Isolierteiles eine Isolierung gewährleistet werden kann. The insulating parts used preferably have opposing plane surfaces, which are executed on the respective end faces of a sleeve part of the insulating part. The plane surfaces can be formed in identical thicknesses. The two flat surfaces formed on the insulating part used according to the invention can also have a different thickness. Due to the elastic properties of the insulating part used, these can be used in the individual holes on the bolt circle of the heat sink and are held in their holes due to their elastic properties by the voltage applied to the heat sink surfaces of the flat surfaces, which facilitates the installation is not insignificant. In addition, the mechanical properties of the attachment connection between the heat sink and the relevant end shield of the housing of the electrical machine are improved. In addition to avoiding previously used rivets, a reduction in the number of components used can be achieved, with the use of an insulating part insulation can be ensured.
Durch die erfindungsgemäß vorgeschlagenen Isolierteile kann sowohl eine axiale als auch eine radiale Isolierung gewährleistet werden. Die Formgebung des Isolierteiles gestattet zudem auch eine Fixierung des Isolierteiles in der betreffenden Bohrung im Kühlkörper während der Montage. By insulating pieces proposed according to the invention, both an axial and a radial insulation can be ensured. The shape of the insulating also allows a fixation of the insulating part in the relevant hole in the heat sink during assembly.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Anhand der Zeichnung wird die Erfindung nachstehend eingehender beschrieben.With reference to the drawing, the invention will be described below in more detail.
Es zeigt:It shows:
Ausführungsvariantenvariants
In
Der Rotor
Die in
Das Isolierteil
Das Isolierteil
Da das in der Darstellung gemäß
Je nach Konfiguration bzw. Durchmesser der ersten Planfläche
Durch die erfindungsgemäß vorgeschlagene Lösung lässt sich einerseits eine Verringerung der Anzahl der zur Befestigung des Kühlkörpers
In Abwandlung der Darstellung gemäß
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19705228 A1 [0001] DE 19705228 A1 [0001]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011080886A DE102011080886A1 (en) | 2011-08-12 | 2011-08-12 | Electric machine e.g. alternator, for motor car, has housings comprising end shields, and cooling body attached with fastening element comprising insulating part at one of end shields, where insulating part comprises sleeve part |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011080886A DE102011080886A1 (en) | 2011-08-12 | 2011-08-12 | Electric machine e.g. alternator, for motor car, has housings comprising end shields, and cooling body attached with fastening element comprising insulating part at one of end shields, where insulating part comprises sleeve part |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011080886A1 true DE102011080886A1 (en) | 2013-02-14 |
Family
ID=47595536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011080886A Withdrawn DE102011080886A1 (en) | 2011-08-12 | 2011-08-12 | Electric machine e.g. alternator, for motor car, has housings comprising end shields, and cooling body attached with fastening element comprising insulating part at one of end shields, where insulating part comprises sleeve part |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102011080886A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150295480A1 (en) * | 2014-04-11 | 2015-10-15 | Remy Technologies Llc | Electric machine with combined insulator and terminal assembly |
DE102015215009A1 (en) | 2015-08-06 | 2017-02-09 | Continental Automotive Gmbh | Air-cooled electric motor with a parallel connection of two fan wheels |
US10715015B2 (en) | 2014-04-11 | 2020-07-14 | Borgwarner Inc. | Electric machine with combined insulator and terminal assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1068990A (en) * | 1964-04-20 | 1967-05-17 | Singer Co | Variable-speed portable electric tools |
US4161775A (en) * | 1976-10-29 | 1979-07-17 | Robert Bosch Gmbh | Rectifier unit for provision in an alternator |
DE19705228A1 (en) | 1997-02-12 | 1998-08-13 | Bosch Gmbh Robert | Electrical machine, preferably a three-phase generator with a rectifier unit |
DE19828518A1 (en) * | 1998-06-26 | 1999-12-30 | Bosch Gmbh Robert | Rectifier modular unit on a three-phase alternator |
-
2011
- 2011-08-12 DE DE102011080886A patent/DE102011080886A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1068990A (en) * | 1964-04-20 | 1967-05-17 | Singer Co | Variable-speed portable electric tools |
US4161775A (en) * | 1976-10-29 | 1979-07-17 | Robert Bosch Gmbh | Rectifier unit for provision in an alternator |
DE19705228A1 (en) | 1997-02-12 | 1998-08-13 | Bosch Gmbh Robert | Electrical machine, preferably a three-phase generator with a rectifier unit |
DE19828518A1 (en) * | 1998-06-26 | 1999-12-30 | Bosch Gmbh Robert | Rectifier modular unit on a three-phase alternator |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150295480A1 (en) * | 2014-04-11 | 2015-10-15 | Remy Technologies Llc | Electric machine with combined insulator and terminal assembly |
US9627948B2 (en) * | 2014-04-11 | 2017-04-18 | Remy Technologies Llc | Electric machine with combined insulator and terminal assembly |
US10715015B2 (en) | 2014-04-11 | 2020-07-14 | Borgwarner Inc. | Electric machine with combined insulator and terminal assembly |
DE102015215009A1 (en) | 2015-08-06 | 2017-02-09 | Continental Automotive Gmbh | Air-cooled electric motor with a parallel connection of two fan wheels |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: H02K0011040000 Ipc: H02K0011050000 |
|
R081 | Change of applicant/patentee |
Owner name: SEG AUTOMOTIVE GERMANY GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH GMBH, 70469 STUTTGART, DE |
|
R082 | Change of representative |
Representative=s name: DEHNS GERMANY, DE |
|
R005 | Application deemed withdrawn due to failure to request examination |