DE370778C - Low speed electric motor, especially for direct drive of speaking machine plates - Google Patents

Low speed electric motor, especially for direct drive of speaking machine plates

Info

Publication number
DE370778C
DE370778C DEL53493D DEL0053493D DE370778C DE 370778 C DE370778 C DE 370778C DE L53493 D DEL53493 D DE L53493D DE L0053493 D DEL0053493 D DE L0053493D DE 370778 C DE370778 C DE 370778C
Authority
DE
Germany
Prior art keywords
electric motor
low speed
speed electric
direct drive
machine plates
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
DEL53493D
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.)
MOTOPHON AKT GES
Original Assignee
MOTOPHON AKT GES
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 MOTOPHON AKT GES filed Critical MOTOPHON AKT GES
Priority to DEL53493D priority Critical patent/DE370778C/en
Application granted granted Critical
Publication of DE370778C publication Critical patent/DE370778C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/40—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

Elektromotor niedriger Drehzahl, besonders zum unmittelbaren Antrieb von Sprechmaschinenplatten. Elektromotoren niedriger Drehzahl erzeugen beim Lauf ein Geräusch, das besonders dann störend wirkt, wenn der Elektromotor zum Antrieb der Platte einer Sprechmaschine benutzt wird. Zweck der Erfindung ist, dieses Geräusch zu beseitigen. Gemäß der Erfindung wird dies dadurch erreicht, daß das beispielsweise von den Polen erzeugte, in den Anker ein- und austretende, motorisch wirksame Kraftlinienfeld in bezug auf die Ankerachse unsymmetrisch gelegt wird.Low speed electric motor, especially for direct drive of speaking machine plates. Low speed electric motors generate when running a noise that is particularly annoying when the electric motor is used to drive it the plate of a speaking machine is used. The purpose of the invention is to make this sound to eliminate. According to the invention this is achieved in that, for example Motorized force line field generated by the poles entering and exiting the armature is placed asymmetrically with respect to the anchor axis.

Es war bei Elektromotoren für Schallplattenantrieb mit zwei Polen bisher üblich, die Pole genau um 18o° versetzt zueinander auf gegenüberliegenden Seiten des Ankers anzuordnen. Um die angestrebte Geräuschlosigkeit zu erhalten, werden nun aber gemäß der Erfindung die Pole um weniger bzw. um mehr als 18o° zueinander versetzt, so daß das wirksame Kraftlinienfeld gegenüber der Ankerachse etwas verschoben wird und seine Mittellinie die Trommelachse nicht schneidet. Das Verschieben des Feldes kann auch in der Weise bewirkt werden, daß die Polschuhe von zwei in üblicher Weise um 18o° versetzten Polen je nach einer Seite hin verbreitert werden; auch kann durch besondere Hilfswindungen das Feld seitlich verlegt werden. Die Verlegung des Feldes braucht erfahrungsgemäß nicht sehr groß zu sein, um die erstrebte Wirkung zu erzeugen.It was with electric motors for record drive with two poles Previously common, the poles offset by exactly 180 ° to each other on opposite sides To arrange sides of the anchor. In order to achieve the desired silence, However, according to the invention, the poles are now less or more than 180 ° relative to one another offset, so that the effective force line field is slightly shifted relative to the armature axis and its center line does not intersect the drum axis. Moving the Field can also be effected in such a way that the pole pieces of two in the usual Widened poles offset by 18o ° depending on one side; even the field can be moved to the side using special auxiliary windings. The relocation Experience has shown that the field does not need to be very large in order to achieve the desired effect to create.

Bei mehr als zweipoligen Motoren wird man die wirksamen Polachsen abwechselnd um etwas mehr und etwas weniger als 18o elektrische Grade voneinander abstehen lassen.With more than two-pole motors one becomes the effective pole axes alternately by a little more and a little less than 18o electrical degrees from each other let stand out.

Claims (1)

PATENTANSPRÜCHE: z. Elektromotor niedriger Drehzahl, besonders zum unmittelbaren Antrieb von Sprechmaschinenplatten, dadurch gekennzeichnet, daß die Feldmagnetpole derart angeordnet oder ausgeführt sind, daß ihr Kraftfeld im Anker unsymmetrisch zu dessen Achse verläuft, zum Zweck, einen geräuschlosen Gang des Motors zu erhalten. a. Ausführungsform nach Anspruch z, dadurch gekennzeichnet, daß bei normaler Lage der Polachsen die Schuhe aufeinanderfolgender Pole immer abwechselnd nach verschiedenen Seiten unsymmetrisch ausgebildet sind.PATENT CLAIMS: e.g. Low speed electric motor, especially for direct drive of speaking machine plates, characterized in that the Field magnetic poles are arranged or designed such that their force field in the armature runs asymmetrically to its axis, for the purpose of a noiseless operation of the Engine. a. Embodiment according to claim z, characterized in that that with the normal position of the polar axes the shoes of successive poles always alternate are designed asymmetrically on different sides.
DEL53493D 1921-07-06 1921-07-06 Low speed electric motor, especially for direct drive of speaking machine plates Expired DE370778C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL53493D DE370778C (en) 1921-07-06 1921-07-06 Low speed electric motor, especially for direct drive of speaking machine plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL53493D DE370778C (en) 1921-07-06 1921-07-06 Low speed electric motor, especially for direct drive of speaking machine plates

Publications (1)

Publication Number Publication Date
DE370778C true DE370778C (en) 1923-03-06

Family

ID=7275433

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL53493D Expired DE370778C (en) 1921-07-06 1921-07-06 Low speed electric motor, especially for direct drive of speaking machine plates

Country Status (1)

Country Link
DE (1) DE370778C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE851379C (en) * 1941-07-14 1952-10-02 Landis & Gyr Ag Small motor, especially synchronous small motor, the rotor of which is subjected to a radial magnetic pull in order to dampen noise

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE851379C (en) * 1941-07-14 1952-10-02 Landis & Gyr Ag Small motor, especially synchronous small motor, the rotor of which is subjected to a radial magnetic pull in order to dampen noise

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