DE890540C - Electric machines with coal collectors - Google Patents

Electric machines with coal collectors

Info

Publication number
DE890540C
DE890540C DEC1207D DEC0001207D DE890540C DE 890540 C DE890540 C DE 890540C DE C1207 D DEC1207 D DE C1207D DE C0001207 D DEC0001207 D DE C0001207D DE 890540 C DE890540 C DE 890540C
Authority
DE
Germany
Prior art keywords
resistance
electric machines
commutation
circuit
electrical
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
DEC1207D
Other languages
German (de)
Inventor
Ottmar Conradty
Hans Zoellner
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.)
FA C CONRADTY
Original Assignee
FA C CONRADTY
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 FA C CONRADTY filed Critical FA C CONRADTY
Priority to DEC1207D priority Critical patent/DE890540C/en
Priority to DK61089D priority patent/DK61089C/en
Application granted granted Critical
Publication of DE890540C publication Critical patent/DE890540C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01R39/04—Commutators
    • H01R39/045—Commutators the commutators being made of carbon

Landscapes

  • Inorganic Insulating Materials (AREA)

Description

Kollektoren .elektrischer Maschinen wurden bisher ausschließlich aus Metall, vorzugsweiseKupfer, gebaut. Der spezifische Widerstand von Kupfer war gegeben und immer der gleiche. Deshalb ist bei den verschiedenen Typen elektrischer Maschinen der Widerstand der Lamellen selbst eine feststehende Größe. Um die für verschiedene Maschinen notwendigen -Änderungen des Widerstandes des Spulenkurzschlußkreises zu erzielen, mußten besondere Maßnahmen ergriffen werden, sei es durch Wicklungsänderung oder durch Zuhilfenahme besonderer Widerstandselemente i, in Fig. i der Zeichnung, die man zur Erzielung der geforderten elektrischen Verhältnisse in den Stromkreis der Wicklung .2 und'zur Erreichung guter Kommutierung in den Kommutierungsstromkreis einschalten mußte. Dadurch wurden die Konstruktionen schwer und umfangreich: Die Erfindung sieht vor, daß man die bisher eingebauten- Widerstandselemente i dadurch überflüssig macht, daß man bereits die Lamellen 3 aus einem Material herstellt, dessen elektrischer Widerstand den elektrischen Erfordernissen des Stromkreises für die Kommutierung gerecht wird (Fig. 2) . Ein diesen Verhältnissen am günstigsten gerecht werdendes Material ist in Kunstkohle, deren elektrischer Widerstand fabrikationsmäßig weitgehend gesteuert werden kann. Durch beliebige Variation des Kunstkohlematerials wird die Widerstandsänderung des Wicklungsstromkreises durch die Lamellen erzielt. Man kann dadurch auch in gewissen Grenzen die Wicklungsausführungen einzelner Maschinengattungen vereinheitlichen, wodurch sich infolge der. Bauvereinfachung wesentliche wirtschaftliche und durch die Verbesserung der Kommutierung außerordentliche technische Vorteile ergeben.Collectors of electrical machines have so far been made exclusively from Metal, preferably copper. The specific resistance of copper was given and always the same. That is why it is with the various types of electrical machines the resistance of the lamellas themselves is a fixed value. To that for different Machines necessary changes in the resistance of the coil short-circuit circuit achieve, special measures had to be taken, be it by changing the winding or by using special resistance elements i, in Fig. i of the drawing, which one to achieve the required electrical conditions in the circuit of the winding .2 and 'to achieve good commutation in the commutation circuit had to turn on. This made the constructions heavy and extensive: The The invention provides that the previously built-in resistance elements i thereby makes it superfluous that one already produces the slats 3 from a material, its electrical resistance to the electrical requirements of the circuit for the commutation is fair (Fig. 2). One that is most favorable to these conditions The material that does justice to this is charcoal, the electrical resistance of which is fabrication-based can be largely controlled. By any variation of the charcoal material the change in resistance of the winding circuit is achieved through the lamellas. This means that within certain limits the winding designs of individual machine types can also be selected unify, which as a result of the. Construction simplification essential economic and extraordinary technical advantages due to the improvement of the commutation result.

Claims (2)

PATENTANSPRÜCHE-i. Elektrische Maschinen, dadurch gekennzeichnet, daß Widerstandsänderungen des Wicklungsstromkreises sowie Kommutierungsverbesserungen durch entsprechenden Eigenwiderstand der Kollektorlamellen selbst erreicht werden. - PATENT CLAIMS-i. Electrical machines, characterized in that that changes in resistance of the winding circuit as well as commutation improvements can be achieved by the corresponding inherent resistance of the collector lamellas themselves. - 2. Elektrische Maschinen nach Anspruch i, dadurch gekennzeichnet, daß der erforderliche Widerstand der Lamellen durch Kunstkohlematerial entsprechenden spezifischen Widerstandes erzielt wird. Angezogene Druckschriften: Deutsche Patentschriften Nr. 63 622, 535 666; USA.-Patentschriften Nr. i Si i i 8o, 1 198 873.2. Electrical machine according to claim i, characterized in that the required resistance of the lamellae is achieved by means of a carbon material corresponding specific resistance. Cited publications: German Patent Nos. 63 622, 535 666; USA. Patent Nos. I Si ii 8o, 1,198,873.
DEC1207D 1939-02-23 1939-02-23 Electric machines with coal collectors Expired DE890540C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEC1207D DE890540C (en) 1939-02-23 1939-02-23 Electric machines with coal collectors
DK61089D DK61089C (en) 1939-02-23 1940-01-27 Device for Electrical Machines with Collectors for Improving Commutation.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC1207D DE890540C (en) 1939-02-23 1939-02-23 Electric machines with coal collectors

Publications (1)

Publication Number Publication Date
DE890540C true DE890540C (en) 1953-09-21

Family

ID=7012571

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC1207D Expired DE890540C (en) 1939-02-23 1939-02-23 Electric machines with coal collectors

Country Status (2)

Country Link
DE (1) DE890540C (en)
DK (1) DK61089C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748363A (en) * 1986-02-21 1988-05-31 Hitachi, Ltd. Current-collecting brush apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE63622C (en) * F. A. HASELWANDER in Offenburg, Baden Collector made of coal for electrical machines
US1198873A (en) * 1914-07-27 1916-09-19 Ralph Lowe Seabury Commutator-brush and method of making the same.
US1811180A (en) * 1928-10-26 1931-06-23 Clyde W Landers Commutator construction for electric machines
DE535666C (en) * 1931-10-14 Aeg Process for the production of commutator bars from two materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE63622C (en) * F. A. HASELWANDER in Offenburg, Baden Collector made of coal for electrical machines
DE535666C (en) * 1931-10-14 Aeg Process for the production of commutator bars from two materials
US1198873A (en) * 1914-07-27 1916-09-19 Ralph Lowe Seabury Commutator-brush and method of making the same.
US1811180A (en) * 1928-10-26 1931-06-23 Clyde W Landers Commutator construction for electric machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748363A (en) * 1986-02-21 1988-05-31 Hitachi, Ltd. Current-collecting brush apparatus

Also Published As

Publication number Publication date
DK61089C (en) 1943-07-05

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