DE2811283A1 - Retention system for laminar stator packet - fixes into stator casing using steel rails with sound absorbing layers to reduce noise - Google Patents
Retention system for laminar stator packet - fixes into stator casing using steel rails with sound absorbing layers to reduce noiseInfo
- Publication number
- DE2811283A1 DE2811283A1 DE19782811283 DE2811283A DE2811283A1 DE 2811283 A1 DE2811283 A1 DE 2811283A1 DE 19782811283 DE19782811283 DE 19782811283 DE 2811283 A DE2811283 A DE 2811283A DE 2811283 A1 DE2811283 A1 DE 2811283A1
- Authority
- DE
- Germany
- Prior art keywords
- stator
- fastening
- holder according
- stator housing
- stator core
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
Abstract
Description
Halterung des Ständerblechpaketes im StändergehäuseBracket for the stator core in the stator housing
Die Erfindung betrifft die Halterung nach dem Oberbegriff des Patentanspruchs 1.The invention relates to the holder according to the preamble of the claim 1.
Bei elektrischen Maschinen, insbesondere Gleichstrommaschinen mit geblechtem Ständer und Ständergehäuse als Teil des joches liegt das Ständerblechpaket mit Ausnahme von axialen Randausnehmungen des Ständerblechpaketes für die Kühlung und Aufnahme von Befestigungsmitteln am Ständergehäuse eng an und überträgt die von den aktiven Teilen der Maschine herrührenden Schwingungen auf das Ständergehäuse, das durch die dadurch bedingten Verformungen Schallabstrahlungen hervorruft. Zur Vermeidung der Geräuschbelästigung der Umwelt hat man die Maschine mit Schallhauben abgedeckt, was teuer, raumbeanspruchend und für die Montage von Nachteil ist.In electrical machines, especially DC machines with Laminated stator and stator housing as part of the yoke is the stator core with the exception of axial edge recesses of the stator core for cooling and receiving fasteners on the stator housing tightly and transmits the vibrations originating from the active parts of the machine on the stator housing, which causes sound radiation due to the deformations caused by it. To the To avoid the noise pollution of the environment, the machine has sound hoods covered, which is expensive, space-consuming and disadvantageous for assembly.
Eine Verminderung der Schallabstrahlung kann zwar durch Verringerung der magnetischen Anregung der aktiven Teile erreicht werden, Jedoch nur durch eine erhebliche Minderung der Maschinenleistung, bezogen auf eine jeweilige Baugröße.A reduction in sound radiation can be achieved by reducing it the magnetic excitation of the active parts can be achieved, but only by one significant reduction in machine performance, based on a respective Size.
Der Erfindung liegt die Aufgabe zugrunde, ohne Schallhauben und ohne Herabsetzung der Maschinenleistung auf einfache und sichere Weise eine beträchtliche Herabsetzung der Schallabstrahlung ohne Beeinträchtigung der Maschinenleistung zu erreichen.The invention is based on the object without and without acoustic hoods Reduction of machine performance in a simple and safe way a considerable Reduction of the sound radiation without impairing the machine performance reach.
De Lösung der gestellten Aufgabe gelingt durch die kennzeichnenden Merkmale des Patentanspruchs 1.The solution to the task at hand is achieved through the characteristic Features of claim 1.
Vorteilhafte Ausgestaltungsmöglichkeiten der Erfindung sind Gegenstand von Unteransprüchen.Advantageous design options of the invention are the subject matter of subclaims.
Ein besonders vorteilhaftes Ausführungsbeispiel der Erfindung ist anhand der Zeichnung nachfolgend näher erläutert. Es zeigt Fig. 1 einen Querschnitt durch einen Teil des Ständergehäuses des Ständerblechpaketes und des nur angedeuteten Läufers und Fig, 2 eine Variante eines Befestigungsmittels im Querschnitt.A particularly advantageous embodiment of the invention is explained in more detail below with reference to the drawing. 1 shows a cross section through part of the stator housing of the stator core and the only hinted at Runner and FIG. 2 shows a variant of a fastening means in cross section.
In einem als magnetischer Rückschluß mitbenutzten Ständergehäuse 2 einer Gleichstrommaschine ist das den Läufer 3 enthaltende Ständerblechpaket 1 mit seinen Hauptpolen 4 und Wendepolen 5 durch Befestigungsmittel 6 sicher gehalten. Hierzu ist am Umfang des Ständerblechpaketes eine Anzahl von axial erstreckten Randausnehmungen 7 vorgesehen, die einen trapezförmigen Querschnitt mit radial nach außen zunehmender Breite haben, in die die Befestigungsmittel 6 formschlüssig eingreifen. Das Ständerblechpaket 1 hat einen geringfügig kleineren Außendurchmesser als der Innendurchmesser des Ständergehäuses 2, so daß zwischen beiden ein Ringepalt 8 verbleibt, der von Kühlmittel durchströmt wird und die Verminderung des EUhl- mitteldurchsatzes durch die Randausnehmungen infolge der Befestigungsmittel ausgleicht. Die Befestigungsmittel 6 sind durch von außen durch das Ständergehäuse 2 eingebrachte Befestigungsachrauben 9 an die Innenseite des Ständergehäuses angepreßt gehalten, wobei die Befestigungsechrauben 9 in Gewindebohrungen 10 in den Befestigungsmitteln 6 eingeschraubt sind und vor der Schalldämmachicht 6b enden.In a stator housing 2 that is also used as a magnetic yoke a direct current machine is the stator core 1 containing the rotor 3 its main poles 4 and reversing poles 5 held securely by fastening means 6. For this purpose, there is a number of axially extending edge recesses on the circumference of the stator core 7 is provided, which has a trapezoidal cross-section with increasing radially outward Have width in which the fastening means 6 engage positively. The stator core 1 has a slightly smaller outer diameter than the inner diameter of the Stator housing 2, so that a ring gap 8 remains between the two, the coolant is flowed through and the reduction of the EU mean throughput compensates for by the edge recesses as a result of the fastening means. The fasteners 6 are provided by fastening screws introduced through the stator housing 2 from the outside 9 held pressed against the inside of the stator housing, the fastening screws 9 are screwed into threaded bores 10 in the fastening means 6 and before the sound insulation layer 6b end.
Jedes Befestigungsmittel 6 besteht gemäß Fig. 1 aus einer Stahlschiene 6a, deren unbedeckte Außenseite an die Krümmung des Ständergehäuses 2 angepaßt ist und einer deren andere Seite bedeckende Schalldämmschicht 6b aus Gummi, die ihrerseits gegen die Randausnehmung 7 durch ein Abdeckblech 6c abgedeckt ist, um ein Beschädigen der Schalldämmschicht durch die Blechschichten zu vermeiden. Gemäß Fig. 2 kann zwischen Ständergehäuse 2 und der Stahlschiene 6a eine weitere Schalldämmschicht 6d vorgesehen sein.According to FIG. 1, each fastening means 6 consists of a steel rail 6a, the uncovered outside of which is adapted to the curvature of the stator housing 2 and a rubber soundproofing layer 6b covering the other side, which in turn against the edge recess 7 is covered by a cover plate 6c to prevent damage to avoid the sound insulation layer through the sheet metal layers. According to FIG. 2, between Stator housing 2 and the steel rail 6a, a further soundproofing layer 6d is provided be.
Die Befestigungsschiene kann auch sandwichartig aus mehreren Stahlschienen und mehreren Schalldämmschichten sowie einem Abdeckblech bestehen.The fastening rail can also be made up of several steel rails in a sandwich-like manner and several sound insulation layers and a cover plate.
Anstelle von durchgehenden Befestigungsschienen können durch Öffnungen im Ständergehäuse auch bolzenartige Befestigungsmittel mit Schalldämmschichten und Abdeckblechen in entsprechende sacklochartige Ausnehmungen am Umfang des Ständerblechpaketes formschlüssig ragen.Instead of continuous fastening rails, openings can be used in the stator housing also bolt-like fasteners with soundproofing layers and Cover plates in corresponding blind hole-like recesses on the circumference of the stator core protrude positively.
Claims (8)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782811283 DE2811283A1 (en) | 1978-03-15 | 1978-03-15 | Retention system for laminar stator packet - fixes into stator casing using steel rails with sound absorbing layers to reduce noise |
JP2929979A JPS54127503A (en) | 1978-03-15 | 1979-03-13 | Apparatus for retaining stator laminated core of stator casing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782811283 DE2811283A1 (en) | 1978-03-15 | 1978-03-15 | Retention system for laminar stator packet - fixes into stator casing using steel rails with sound absorbing layers to reduce noise |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2811283A1 true DE2811283A1 (en) | 1979-09-20 |
Family
ID=6034517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782811283 Pending DE2811283A1 (en) | 1978-03-15 | 1978-03-15 | Retention system for laminar stator packet - fixes into stator casing using steel rails with sound absorbing layers to reduce noise |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS54127503A (en) |
DE (1) | DE2811283A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4389589A (en) * | 1980-10-07 | 1983-06-21 | Robert Bosch Gmbh | Dynamo electric machine-internal combustion engine combination structure |
EP0149228A2 (en) * | 1983-12-28 | 1985-07-24 | Papst-Motoren GmbH & Co. KG | Electric motor, in particular a commutatorless direct current motor |
DE3704157A1 (en) * | 1986-03-15 | 1987-09-17 | Bosch Gmbh Robert | Device for reducing the noise of electrical machines |
FR2596930A1 (en) * | 1986-04-08 | 1987-10-09 | Ducellier & Cie | DYNAMO-ELECTRIC MACHINE, ESPECIALLY A MOTOR VEHICLE ALTERNATOR |
USRE33813E (en) * | 1983-12-28 | 1992-02-04 | Papst-Motoren Gmbh & Co. Kg | Electric motor, particularly a brushless direct current motor |
DE4109814A1 (en) * | 1991-03-26 | 1992-10-01 | Lloyd Dynamowerke Gmbh | Mounting and housing with laminated armature for induction motor - has tube supporting laminations with through-holes distributed over periphery for reduced acoustic noise |
DE10018156A1 (en) * | 2000-04-12 | 2001-10-25 | Bosch Gmbh Robert | Electric motor |
EP1315269A1 (en) * | 2001-11-26 | 2003-05-28 | Sincro S.R.L. | A system for fastening the stator to the casing in a rotating electrical machine |
WO2011101549A1 (en) * | 2010-02-18 | 2011-08-25 | Abb Oy | Arrangement and method for reducing vibration in an electrical machine |
DE102016104594A1 (en) | 2016-03-14 | 2017-09-14 | Vem Sachsenwerk Gmbh | Stator housing for medium and large rotating electrical machines for noise reduction |
-
1978
- 1978-03-15 DE DE19782811283 patent/DE2811283A1/en active Pending
-
1979
- 1979-03-13 JP JP2929979A patent/JPS54127503A/en active Pending
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4389589A (en) * | 1980-10-07 | 1983-06-21 | Robert Bosch Gmbh | Dynamo electric machine-internal combustion engine combination structure |
EP0425478A3 (en) * | 1983-12-28 | 1992-10-07 | Papst-Motoren Gmbh & Co. Kg | Electric motor, in particular collectorless direct-current motor |
EP0149228A2 (en) * | 1983-12-28 | 1985-07-24 | Papst-Motoren GmbH & Co. KG | Electric motor, in particular a commutatorless direct current motor |
EP0425478A2 (en) * | 1983-12-28 | 1991-05-02 | Papst Licensing GmbH | External rotor motor, in particular collectorless direct-current motor |
USRE33813E (en) * | 1983-12-28 | 1992-02-04 | Papst-Motoren Gmbh & Co. Kg | Electric motor, particularly a brushless direct current motor |
EP0149228A3 (en) * | 1983-12-28 | 1986-03-05 | Papst-Motoren Gmbh & Co. Kg | Electric motor, in particular a commutatorless direct current motor |
DE3704157A1 (en) * | 1986-03-15 | 1987-09-17 | Bosch Gmbh Robert | Device for reducing the noise of electrical machines |
FR2596930A1 (en) * | 1986-04-08 | 1987-10-09 | Ducellier & Cie | DYNAMO-ELECTRIC MACHINE, ESPECIALLY A MOTOR VEHICLE ALTERNATOR |
EP0240644A1 (en) * | 1986-04-08 | 1987-10-14 | Valeo Equipements Electriques Moteur | Dynamo-electric machine, in particular an alternator for a motor vehicle |
DE4109814A1 (en) * | 1991-03-26 | 1992-10-01 | Lloyd Dynamowerke Gmbh | Mounting and housing with laminated armature for induction motor - has tube supporting laminations with through-holes distributed over periphery for reduced acoustic noise |
DE10018156A1 (en) * | 2000-04-12 | 2001-10-25 | Bosch Gmbh Robert | Electric motor |
EP1315269A1 (en) * | 2001-11-26 | 2003-05-28 | Sincro S.R.L. | A system for fastening the stator to the casing in a rotating electrical machine |
WO2011101549A1 (en) * | 2010-02-18 | 2011-08-25 | Abb Oy | Arrangement and method for reducing vibration in an electrical machine |
DE102016104594A1 (en) | 2016-03-14 | 2017-09-14 | Vem Sachsenwerk Gmbh | Stator housing for medium and large rotating electrical machines for noise reduction |
WO2017157384A1 (en) | 2016-03-14 | 2017-09-21 | Vem Sachsenwerk Gmbh | Stator frame for medium and large rotating electrical machines for noise reduction |
Also Published As
Publication number | Publication date |
---|---|
JPS54127503A (en) | 1979-10-03 |
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Legal Events
Date | Code | Title | Description |
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OAP | Request for examination filed | ||
OD | Request for examination | ||
OHN | Withdrawal |