DE968283C - Pressed commutator for electrical machines - Google Patents

Pressed commutator for electrical machines

Info

Publication number
DE968283C
DE968283C DES5248D DES0005248D DE968283C DE 968283 C DE968283 C DE 968283C DE S5248 D DES5248 D DE S5248D DE S0005248 D DES0005248 D DE S0005248D DE 968283 C DE968283 C DE 968283C
Authority
DE
Germany
Prior art keywords
pot
molding compound
patent nos
electrical machines
preßstoffkommutator
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.)
Expired
Application number
DES5248D
Other languages
German (de)
Inventor
Werner Rahn
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DES5248D priority Critical patent/DE968283C/en
Application granted granted Critical
Publication of DE968283C publication Critical patent/DE968283C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K13/00Structural 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
    • H02K13/006Structural associations of commutators

Landscapes

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

Description

Preßstoffkommutatoren für elektrische Maschinen werden im allgemeinen in der Weise hergestellt, daß man die Lamellen einzeln aufbaut und die so aufgebauten Lamellen durch die Preßmasse miteinander verbindet. Die Aufstellung derartiger Kommutatoren ist außerordentlich kostspielig. Außerdem müssen die Lamellen besonders geformt sein, um eine sichere Verankerung derselben in der Preßmasse zu erzielen. Es ist hierbei nicht zu vermeiden, daß eigens für die Verankerung verhältnismäßig viel Metall für die Lamellen verwendet werden muß. Es ist ferner auch bekannt, den Kommutator in der Weise auszubilden, daß er aus einzeln gefertigten, auf einem Isolierkörper zu befestigenden Lamellen besteht, die mit nach innen biegbaren, in der Mitte der Lamellen angeordneten Verankerungsansätzen versehen sind, die zur Befestigung der Lamellen auf dem Isolierkörper dienen. An den Lamellen sind außerdem nach außen abgewinkelte Anschlußfahnen für die Stromleiter angebracht. Man hat ferner die Preßstoffkommutatoren in der Weise ausgebildet, daß sie aus einem in der Preßmasse verankerten topfähnlichen Gebilde bestehen, das durch achsparalleles Aufschneiden in Lamellen unterteilt ist. Die Lamellen sind dabei mit radial nach außen gerichteten, geschlitzten Anschlußansätzen für die Stromzuführung versehen. Andererseits ist es bekannt, die Ränder der Stromwendernabe aufzubiegen, um sie dadurch in dem Nabenkörper besser zu verankern. Zu diesem Zweck hat man auch vorgeschlagen, Versteifungsrippen an der Innenseite des Topfmantels vorzusehen. Die vorliegende Erfindung zeigt nun eine verbesserte Ausführung - eines solchen Preßstoffkommutators, dessen Lamellen durch achsparalleles Aufschneiden eines in der Preßmasse verankerten topfähnlichen Gebildes entstanden sind.Plastic commutators for electrical machines are generally used manufactured in such a way that the lamellae are built up individually and those so built up Connects lamellae to one another through the molding compound. The list of such commutators is extremely expensive. In addition, the slats must be specially shaped be in order to achieve a secure anchoring of the same in the molding compound. It is not to avoid here that a relatively large amount especially for the anchoring Metal must be used for the slats. It is also known the commutator to train in such a way that it is made from individually manufactured on an insulating body to be attached slats, with inwardly bendable, in the middle of the Slats arranged anchoring lugs are provided, which are used to attach the Serve lamellae on the insulating body. On the slats are also outward Angled connection lugs attached for the current conductors. You also have the molded commutators designed in such a way that it consists of a pot-like anchored in the molding compound There are structures that are divided into lamellae by axially parallel cutting. The lamellas have slotted connection lugs directed radially outward for the power supply. On the other hand, it is known to be the edges of the commutator hub bend up in order to anchor them better in the hub body. To this end it has also been proposed to have stiffening ribs on the inside of the pot shell to be provided. The present invention now shows an improved embodiment - one Such a Preßstoffkommutators, the lamellae by axially parallel cutting a pot-like structure anchored in the molding compound.

Der erfindungsgemäße Preßstoffkommutator ist in der Weise ausgebildet, daß der dem Bodenteil des Lamellentopfes abgewandte Rand zur Verankerung in der Preßmasse dienende Einspreizungen aufweist und die zwischen diesen Einspreizungen liegenden Randteile nach außen gedrückt sind, derart, daß sie paarweise in der durch die Einspreizungen bedingten Lücke die Stromanschlüsse aufnehmen. Ein in solcher Weise ausgebildeter Preßstoffkommutator hat einen besonders festen Zusammenhalt, wobei zu seiner Herstellung ein verhältnismäßig nur geringer Material-und Arbeitsaufwand erforderlich ist. Vorteilhaft sind dabei die Ränder .der Nabe derart aufgebogen und geformt, daß sie ankerartig zwischen die in die Preßmasse eingreifenden Bodenteile des Lamellentopfes eingreifen. Der Topfmantel kann dabei gegebenenfalls Versteifungsrippen, Sicken od. dgl. besitzen. Für alle diese Merkmale wird jedoch kein Elementenschutz begehrt, da sie an sich bekannt sind. In der Zeichnung ist in den Fig. I und 2 ein Ausführungsbeispiel eines gemäß der Erfindung ausgebildeten Preßstoffkommutators im Längs-bzw. Querschnitt dargestellt. I ist der sogenannte Lamellentopf, dessen Boden :2 offen ist. Der Bodenrand 3 sowie der dem Bodenteil abgewandte Rand4 sind derart geformt und aufgeschlitzt, daß sich der Topf fest in der Preßmasse 5 verankert. Der dem Bodenteil abgewandte Rand weist zur Verankerung der Lamellen in der Preßmasse dienende Einspreizungen 6 auf. Die zwischen .den Einspreizungen 6 liegenden Randteile 7 sind nach außen gedrückt, derart, daß sie paarweise (vgl. Fig. 2) in den durch die Einspreizungen 6 bedingten Lücken 8 die Stromanschlüsse der Lamellen aufnehmen können. Der Bodenrand 3 ist - wie man aus der Fig. 2 ersieht - segmentweise geschlitzt. Die Schnitte 9 sind mittig durch die zwischen. den. Einspreizungen befindlichen Randsegmente geführt und verlaufen parallel zur Achse I0 des Kommutators. Die Nabe II besteht aus einem an beiden Stirnenden zur Verankerung nach außen gebogenen rohrförmigen Teil.The molded commutator according to the invention is designed in such a way that that the edge facing away from the bottom part of the lamella pot for anchoring in the Has molding compound serving spreading and between these spreading lying edge parts are pressed outward, such that they are in pairs in the through the gap caused by the spreading accommodates the power connections. One in such Wise formed commutator has a particularly strong cohesion, only a relatively small expenditure of material and labor for its manufacture is required. The edges of the hub are advantageously bent up in this way and shaped so that they anchor-like between the engaging in the molding compound bottom parts of the lamella pot engage. The pot jacket can optionally have stiffening ribs, Have beads or the like. However, there is no element protection for any of these characteristics coveted because they are known per se. In the drawing is in Figs Embodiment of a molded according to the invention formed commutator in the longitudinal or. Cross-section shown. I is the so-called lamellar pot, its Floor: 2 is open. The bottom edge 3 and the edge 4 facing away from the bottom part are shaped and slit in such a way that the pot is firmly anchored in the molding compound 5. The edge facing away from the bottom part points to anchoring the lamellae in the molding compound serving bracing 6 on. The edge parts lying between .den spreads 6 7 are pressed outwards, so that they are in pairs (see. Fig. 2) in the through the spacings 6 caused gaps 8 accommodate the power connections of the lamellas can. The bottom edge 3 is - as can be seen from FIG. 2 - slotted in segments. The cuts 9 are centered through the between. the. Spreads located Edge segments out and run parallel to the axis I0 of the commutator. The hub II consists of a tubular which is bent outwards at both ends for anchoring Part.

Claims (3)

PATENTANSPRÜCHE: I. Preßstoffkommutator für elektrische Maschinen mit durch achsparalleles Aufschneiden eines in der Preßmasse verankerten topfähnlichen Gebildes entstandenen Lamellen mit radial nach außen gerichteten, geschlitzten, Anschlußan.sätzen für die Stromzuführung, dadurch .gekennzeichnet, daß der dem Bodenteil des Lamellentopfes abgewendete Rand zur Verankerung in der Preßmasse dienende Einspreizungen aufweist und die zwischen diesen Ein-Spreizungen liegenden Randteile nach außen gedrückt sind, derart, daß sie paarweise in der durch die Einspreizungen bedingten Lücke die Stromanschlüsse aufnehmen. PATENT CLAIMS: I. Molded commutator for electrical machines with a pot-like anchored in the molding compound by axially parallel cutting open The resulting lamellae with radially outwardly directed, slotted, Connection sets for the power supply, characterized in that the base part of the lamellar pot facing away from the edge serving for anchoring in the molding compound and the edge parts lying between these one-spreadings to the outside are pressed in such a way that they are in pairs in the caused by the spreading Gap to accommodate the power connections. 2. Preßstoffkommutator nach Anspruch I, dadurch gekennzeichnet, daß die Ränder der Nabe derart aufgebogen und geformt sind, daß sie ankerartig zwischen die in die Preßmasse eingreifenden Bodenteile des Lamellentopfes greifen. 2. Preßstoffkommutator according to claim I, characterized characterized in that the edges of the hub are bent up and shaped such that they anchor-like between the engaging in the molding compound bottom parts of the lamella pot to grab. 3. Preßstoffkommutator nach Anspruch i, .dadurch gekennzeichnet, daß der Topfmantel Versteifungsrippen, Sicken od. dgl. besitzt. In Betracht gezogene Druckschriften Deutsche Patentschriften Nr. 344234 383 689, 397 5i8, 5i7 841; französische Patentschriften Nr. 732 946; britische Patentschriften Nr. 541 557; USA.-Patentschriften Nr. 1 410 914, 2 236 257.3. Preßstoffkommutator according to claim i,. Characterized in that the pot shell od stiffening ribs, beads. The like. Has. Considered publications German Patent Nos. 344234 383 689, 397 5i8, 5i7 841; French Patent Nos. 732,946; British Patent Specification No. 541 557; U.S. Patent Nos. 1,410,914, 2,236,257.
DES5248D 1942-04-30 1942-04-30 Pressed commutator for electrical machines Expired DE968283C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES5248D DE968283C (en) 1942-04-30 1942-04-30 Pressed commutator for electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES5248D DE968283C (en) 1942-04-30 1942-04-30 Pressed commutator for electrical machines

Publications (1)

Publication Number Publication Date
DE968283C true DE968283C (en) 1958-01-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DES5248D Expired DE968283C (en) 1942-04-30 1942-04-30 Pressed commutator for electrical machines

Country Status (1)

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DE (1) DE968283C (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE344231C (en) * 1919-04-30 1921-11-18 Bosch Robert Ag Process for the manufacture of collectors
US1410914A (en) * 1917-10-23 1922-03-28 Forest H Hartzell Commutator for electric motors
DE383689C (en) * 1921-11-04 1923-11-08 Robert Bosch Akt Ges Commutator for electrical machines, in which a copper sleeve is fixed on a socket made of insulating material, which is divided into the individual commutator webs by cutting in the longitudinal direction
DE397518C (en) * 1920-05-21 1924-06-26 Rene Alfred Laurent Volet Current converter for electrical machines according to patent 377835, the socket of which is made of a plastic or castable insulating material such as Bakelite
DE517841C (en) * 1929-09-04 1931-02-09 Hermann Buchholz Roller-shaped collector for electric motors and dynamo machines
FR732946A (en) * 1931-03-11 1932-09-28 Alsthom Cgee Blade collector for machines and electrical devices
US2236257A (en) * 1938-03-23 1941-03-25 Gen Ind Co Commutator
GB541557A (en) * 1940-05-30 1941-12-02 Hoover Ltd Improvements in or relating to commutators for dynamo-electric machines

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1410914A (en) * 1917-10-23 1922-03-28 Forest H Hartzell Commutator for electric motors
DE344231C (en) * 1919-04-30 1921-11-18 Bosch Robert Ag Process for the manufacture of collectors
DE397518C (en) * 1920-05-21 1924-06-26 Rene Alfred Laurent Volet Current converter for electrical machines according to patent 377835, the socket of which is made of a plastic or castable insulating material such as Bakelite
DE383689C (en) * 1921-11-04 1923-11-08 Robert Bosch Akt Ges Commutator for electrical machines, in which a copper sleeve is fixed on a socket made of insulating material, which is divided into the individual commutator webs by cutting in the longitudinal direction
DE517841C (en) * 1929-09-04 1931-02-09 Hermann Buchholz Roller-shaped collector for electric motors and dynamo machines
FR732946A (en) * 1931-03-11 1932-09-28 Alsthom Cgee Blade collector for machines and electrical devices
US2236257A (en) * 1938-03-23 1941-03-25 Gen Ind Co Commutator
GB541557A (en) * 1940-05-30 1941-12-02 Hoover Ltd Improvements in or relating to commutators for dynamo-electric machines

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