DE604031C - Commutator with insulation layers provided between the individual commutator bars, the ends of which protrude from the end surface of the commutator facing the motor winding head - Google Patents

Commutator with insulation layers provided between the individual commutator bars, the ends of which protrude from the end surface of the commutator facing the motor winding head

Info

Publication number
DE604031C
DE604031C DEB159806D DEB0159806D DE604031C DE 604031 C DE604031 C DE 604031C DE B159806 D DEB159806 D DE B159806D DE B0159806 D DEB0159806 D DE B0159806D DE 604031 C DE604031 C DE 604031C
Authority
DE
Germany
Prior art keywords
commutator
winding head
protrude
individual
motor winding
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
DEB159806D
Other languages
German (de)
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.)
BOSCH ROBERT AG
Robert Bosch GmbH
Original Assignee
BOSCH ROBERT AG
Robert Bosch GmbH
Publication date
Priority to DEB159806D priority Critical patent/DE604031C/en
Application granted granted Critical
Publication of DE604031C publication Critical patent/DE604031C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00Rotary current collectors, distributors or interrupters
    • H01R39/02Details for dynamo electric machines
    • H01R39/04Commutators

Description

Bei bekannten Stromwendern für elektrische Maschinen mit zwischen den einzelnen Stegen angeordneten Glimmerschichten ragen diese Glimmerschichten über die gegen den Wikkelkopf des Ankers gerichtete Stirnfläche des Stromwenders hinaus. Es wird dabei in der Hauptsache der Zweck verfolgt, zu vermeiden, daß beim späteren Einlöten der Wicklungsenden abfließendes Lot eine Verbindung zwischen zwei benachbarten Stegen und damit einen praktisch nicht mehr zu beseitigenden Kurzschluß herstellen kann.In known commutators for electrical machines with between the individual webs arranged mica layers, these mica layers protrude over the against the winding head the armature facing face of the commutator addition. The main purpose is to avoid that when the winding ends are later soldered in, solder that flows off creates a connection between two adjacent webs and thus can produce a short circuit that can practically no longer be eliminated.

Die einzulötenden Wicklungsenden finden jedoch an den Stellen über den sektorförmigen Hohlräumen, die zwischen den überstehenden Glimmerblättchen verbleiben, keine tragfähige Unterlage. Diese Tatsache hat insbesondere bei 'elektrischen Maschinen, die starken Erschütterungen ausgesetzt sind, z. B.However, the winding ends to be soldered are located at the points above the sector-shaped ones Cavities that remain between the protruding mica flakes are not viable Document. This fact has especially in 'electrical machines that are exposed to strong vibrations, e.g. B.

Antriebsmotoren für handgeführte Elektrohammer, zu Brüchen der Wicklungsenden am Stromwender Anlaß gegeben.Drive motors for hand-held electric hammers, to break the winding ends on Commuter given occasion.

Gemäß der Erfindung sind zur Schaffung einer festen Unterlage für die Wicklungsenden die überstehenden Glimmerblättchen gegen den Stromwender umgeknickt, und der dadurch entstehende freie Raum zwischen Stromwender und Wickelkopf ist mit Isolierstoff fest ausgefüllt. Durch diese Anordnung werden also die Nachteile der überstehenden Glimmert eile beseitigt, ohne daß deren Vorteile bei der Lötung preisgegeben werden.According to the invention are to create a solid base for the winding ends the protruding mica leaves bent over against the commutator, and the resulting free space between The commutator and winding head are firmly filled with insulating material. Through this arrangement the disadvantages of the protruding mica are therefore eliminated without sacrificing their advantages are disclosed during soldering.

Besonders geeignet zur Ausfüllung ist Schnur, die fest in den freien Raum gewikkelt und gegebenenfalls mit Lack getränkt wird. Wenig gezwirnte langfaserige Hanfschnur hat dabei den Vorzug besonderer Eignung zur Lackaufnahme und innigen Verbindung mit den Nachbarlagen.Cord that is tightly wound in the free space is particularly suitable for filling and, if necessary, impregnated with varnish. Little twisted long fiber hemp cord has the advantage of being particularly suitable for absorbing paint and intimately connecting with the neighboring layers.

In der Zeichnung ist inIn the drawing, in

Abb. ι an einem kleinen Stromwenderausschnitt die bekannte Anordnung gezeigt.Fig. Ι on a small cutout of commutator the known arrangement shown.

Abb. 2 zeigt, teilweise im Schnitt zwischen den Linien A-A und B-B, eine Ansicht des Stromwenders und Wicklungskopfes.Fig. 2 shows, partly in section between the lines AA and BB, a view of the commutator and winding head.

Abb. 3 und 4 zeigen in vergrößertem Maßstab eine Aufsicht auf die Fahnen der Stromwenderstege. Fig. 3 and 4 show on an enlarged scale a plan view of the flags of the commutator bars.

Die auf den Grundkörper λ aufgekeilten Stromwenderstege b sind durch. Glimmer-Zwischenschichten c, die bei den bekannten Ausführungen mit ihren Enden c' aus der Stirnwand des Stromwenders herausragen (Abb. 1), gegeneinander isoliert. Bei dem Stromwender gemäß der Erfindung sind diese überstehenden Enden c' umgeknickt und bilden auf der Stirnfläche eine Glimmerlage c". Der zwischen dieser GHmmerlage c", dem Grundkörper α und dem Wickelkopf d liegende freie Raum ist mit Hanfschnüren e vollgewickelt, die den in die Fahnen b' der Stege & eingelöteten Wicklungsenden / in unmittelbarer Nähe der Stirnfläche des Stromwenders als feste Unterlage dienen.The commutator webs b wedged onto the base body λ are through. Mica intermediate layers c, which in the known designs protrude with their ends c 'from the end wall of the commutator (Fig. 1), insulated from one another. In the commutator according to the invention, these protruding ends c 'are bent over and form a mica layer c "on the end face. The free space between this GHmmerlage c", the base body α and the winding head d is fully wrapped with hemp cords e , which enclose the Flags b 'of the webs & soldered winding ends / in the immediate vicinity of the end face of the commutator serve as a solid base.

Claims (3)

Patentansprüche:Patent claims: 1. Stromwender mit zwischen den einzelnen Stromwenderstegen vorgesehenen Isolations- (Glimmer-) Schichten, deren Enden aus der dem Motorwickelkopf zugewendeten Stirnfläche des Stromwenders herausragen, dadurch gekennzeichnet, daß diese Enden gegen den Stromwender umgeknickt sind und der durch das Umknikken derselben zwischen dem Stromwender und dem Wickelkopf frei gemachte Raum mit einem Isolierstoff so ausgefüllt ist, daß er den Wicklungsenden als feste Unterlage dient.1. Commutator with provided between the individual commutator bars Insulation (mica) layers, the ends of which face the motor winding head The end face of the commutator protrudes, characterized in that these ends are bent over against the commutator and the space made free by the kinking of the same between the commutator and the winding head is filled with an insulating material so that it serves as a solid base for the winding ends. 2. Stromwender nach Anspruch 1, dadurch gekennzeichnet, daß der freie Raum zwischen Stromwender und Wickelkopf mit schnurförmigem Isolationsstoff vollgewikkelt ist.2. commutator according to claim 1, characterized in that the free space Between the commutator and the winding head, fully wound with string-shaped insulation material is. 3. Stromwender nach Anspruch ι und 2, dadurch gekennzeichnet, daß der freie Raum mit einer wenig gezwirnten' faserigen Hanfschnur vollgewickelt ist.3. commutator according to claim ι and 2, characterized in that the free Room is wrapped with a little twisted 'fibrous hemp cord. Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings
DEB159806D Commutator with insulation layers provided between the individual commutator bars, the ends of which protrude from the end surface of the commutator facing the motor winding head Expired DE604031C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB159806D DE604031C (en) Commutator with insulation layers provided between the individual commutator bars, the ends of which protrude from the end surface of the commutator facing the motor winding head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB159806D DE604031C (en) Commutator with insulation layers provided between the individual commutator bars, the ends of which protrude from the end surface of the commutator facing the motor winding head

Publications (1)

Publication Number Publication Date
DE604031C true DE604031C (en) 1934-10-12

Family

ID=7004245

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB159806D Expired DE604031C (en) Commutator with insulation layers provided between the individual commutator bars, the ends of which protrude from the end surface of the commutator facing the motor winding head

Country Status (1)

Country Link
DE (1) DE604031C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE760402C (en) * 1940-08-14 1954-03-08 Siemens Schuckertwerke A G Device to protect the conductors inserted in grooves in electrical machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE760402C (en) * 1940-08-14 1954-03-08 Siemens Schuckertwerke A G Device to protect the conductors inserted in grooves in electrical machines

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