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DE927161C - Attachment of suppression capacitors to electrical machines - Google Patents

Attachment of suppression capacitors to electrical machines

Info

Publication number
DE927161C
DE927161C DEA6888D DEA0006888D DE927161C DE 927161 C DE927161 C DE 927161C DE A6888 D DEA6888 D DE A6888D DE A0006888 D DEA0006888 D DE A0006888D DE 927161 C DE927161 C DE 927161C
Authority
DE
Germany
Prior art keywords
capacitors
attachment
electrical machines
end shield
capacitor
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
DEA6888D
Other languages
German (de)
Inventor
Otto Dienst
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.)
AEG AG
Original Assignee
AEG 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 AEG AG filed Critical AEG AG
Priority to DEA6888D priority Critical patent/DE927161C/en
Application granted granted Critical
Publication of DE927161C publication Critical patent/DE927161C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/02Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
    • H02K11/026Suppressors associated with brushes, brush holders or their supports
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/02Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
    • H02K11/028Suppressors associated with the rotor

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Description

Zur Beseitigung der hochfrequenten Störungen, die durch elektrische Maschinen verursacht werden, ordnet man die Entstörungskondensatoren zweckmäßig in der Maschine an.To eliminate the high frequency interference caused by electrical Machines, one arranges the interference suppression capacitors appropriately in the machine.

An sich ist es bekannt, Kondensatoren, die z. B. für den Anlauf von kurzgeschlossenen Läufern von Einphasenmotoren verwendet werden, im Lagerschildraum des Motors unterzubringen, und zwar wird bei bekannten Ausführungen zu diesem Zweck das Motorgehäuse in zwei in axialer Richtung hintereinanderliegende Räume unterteilt, in denen der Kondensator im Lagerschildbereich und der Läufer im Ständerblechpaketbereich getrennt voneinander untergebracht werden. Derartige räumliche Anordnungen werden jedoch nicht mit Rücksicht auf eine gesteigerte Wirksamkeit des Kondensators, die selbstverständlich auch nichterzielt wird, ausgeführt, sondern lediglich, um den Kondensator vom übrigen Motor baulich so abzugrenzen, daß dadurch andere Funktionen, wie z. B. ein wirksamer Kühlluftstrom durch den Motor, nicht beeinflußt werden.It is known per se, capacitors which, for. B. for the startup of short-circuited rotors of single-phase motors are used in the end shield space to accommodate the motor, and that is in known designs for this purpose the motor housing is divided into two spaces, one behind the other in the axial direction, in which the capacitor in the end shield area and the rotor in the stator core area housed separately from each other. Such spatial arrangements are but not with a view to increasing the efficiency of the capacitor is of course not achieved, carried out, but only to the The capacitor must be structurally separated from the rest of the motor in such a way that other functions such as B. an effective cooling air flow through the engine, are not affected.

Für die Entstörung im Bereich sehr kurzer Wellen werden in der Regel als Entstörungskondensatoren sogenannte Durchgangskondensatoren verwendet, bei denen die eine Belegung mit einem als Stromleiter ausgebildeten Bolzen für doppelseitigen Anschluß in Verbindung steht, während die zweite Belegung am Gehäuse des Kondensators liegt. Die entstörende Wirkung des Kondensators im Bereich sehr kurzer Wellen ist am größten, wenn die Verbindungsleitung zur Störquelle möglichst kurz und der Übergangswiderstand zwischen Kondensatorgehäuse und Maschinenkörper sehr klein ist.For interference suppression in the area of very short waves, as a rule so-called through capacitors are used as interference suppression capacitors, in which one assignment with a bolt designed as a conductor for double-sided Terminal is in connection, while the second assignment on the housing of the capacitor lies. The anti-interference effect of the capacitor in the area of very short waves is greatest when the connection line to the source of interference is as short as possible and the contact resistance between the capacitor housing and the machine body is very small.

Erfindungsgemäß werden diese Bedingungen durch eine Befestigung von als Entstörungskondensatoren dienenden Durchgangskondensatoren am Lagerschild elektrischer Maschinen erfüllt, die dadurch gekennzeichnet ist, daß die Durchgangskondensatoren in schellenförmige Ansätze des Lagerschildes eingeklemmt sind, die mit dem Lagerschild aus einem Stück bestehen. Zur Erläuterung des Erfindungsgedankens sei ein in den Fig. I und 2 dargestelltes Ausführungsbeispiel beschrieben.According to the invention, these conditions are achieved by attaching Through capacitors serving as interference suppression capacitors on the electrical end shield Machines met, which is characterized in that the through capacitors are clamped in clamp-shaped approaches of the end shield with the end shield consist of one piece. To explain the concept of the invention is a in the Fig. I and 2 illustrated embodiment described.

Das Lagerschild a der elektrischen Maschine enthält in den Lagerarmen zwei schellenartig ausgebildete Ansätze b, deren Bohrungen quer zur Maschinenachse liegen. Die Kondensatoren c mit glatten zylindrischen Gehäusen werden in den Bohrungen durch Anziehen der Schraubend festgeklemmt. Das eine Ende e der Durchgangsbolzen wird durch kurze Litzen f mit den Bürstenhaltern g verbunden, während das andere Ende h an die Netzleitung angeschlossen wird. Durch das Einklemmen der Kondensatorgehäuse werden ein großer Kontaktdruck und eine große Berührungsfläche zwischen Kondensatorgehäuse und Maschinenkörper erzielt, so daß der Übergangswiderstand sehr klein ist. Die Anordnung hat durch ihre leichte Zugänglichkeit noch den Vorteil, daß bei der Isolationsprobe der Maschine die Kondensatoren durch Lösen der Litzen f leicht spannungslos gemacht werden können, wenn das mit Rücksicht auf eine kleinere Prüfspannung der Kondensatoren erforderlich ist.The end shield a of the electrical machine contains in the bearing arms two clamp-like approaches b, the bores of which are transverse to the machine axis lie. The capacitors c with smooth cylindrical housings are in the bores clamped by tightening the screw. One end e of the through bolt is connected to the brush holders g by short strands f, while the other Is connected to the power line at the end of h. By clamping the capacitor housing become a large contact pressure and a large contact area between capacitor housings and achieved machine body, so that the contact resistance is very small. the Due to its easy accessibility, the arrangement has the advantage that during the insulation test of the machine, the capacitors are easily de-energized by loosening the strands f can be, if that with regard to a lower test voltage of the capacitors is required.

Claims (1)

PATENTANSPRUCH: Befestigung von als Entstörungskondensator dienenden Durchgangskondensatoren am Lagerschild elektrischer Maschinen, dadurch gekennzeichnet, daß die Durchgangskondensatoren in schellenförmige Ansätze des Lagerschildes eingeklemmt sind, die mit dem Lagerschild aus einem Stück bestehen. Angezogene Druckschriften: Britische Patentschrift Nr. 431947.PATENT CLAIM: Attachment of serving as an interference suppression capacitor Through capacitors on the end shield of electrical machines, characterized in that that the through capacitors are clamped in clamp-shaped lugs on the end shield that are made in one piece with the end shield. Referred publications: British Patent No. 431947.
DEA6888D 1943-04-14 1943-04-14 Attachment of suppression capacitors to electrical machines Expired DE927161C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA6888D DE927161C (en) 1943-04-14 1943-04-14 Attachment of suppression capacitors to electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA6888D DE927161C (en) 1943-04-14 1943-04-14 Attachment of suppression capacitors to electrical machines

Publications (1)

Publication Number Publication Date
DE927161C true DE927161C (en) 1955-05-02

Family

ID=6921121

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA6888D Expired DE927161C (en) 1943-04-14 1943-04-14 Attachment of suppression capacitors to electrical machines

Country Status (1)

Country Link
DE (1) DE927161C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB431947A (en) * 1934-01-18 1935-07-18 Paul Alphonse Herbert Mossay Improvements in or relating to electric motors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB431947A (en) * 1934-01-18 1935-07-18 Paul Alphonse Herbert Mossay Improvements in or relating to electric motors

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