DE709374C - Coil body for the voice coil of high-performance electrodynamic loudspeakers - Google Patents

Coil body for the voice coil of high-performance electrodynamic loudspeakers

Info

Publication number
DE709374C
DE709374C DET51592D DET0051592D DE709374C DE 709374 C DE709374 C DE 709374C DE T51592 D DET51592 D DE T51592D DE T0051592 D DET0051592 D DE T0051592D DE 709374 C DE709374 C DE 709374C
Authority
DE
Germany
Prior art keywords
coil
voice coil
performance
bobbin
electrodynamic loudspeakers
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
DET51592D
Other languages
German (de)
Inventor
Willy Schulze
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.)
Telefunken AG
Original Assignee
Telefunken 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 Telefunken AG filed Critical Telefunken AG
Priority to DET51592D priority Critical patent/DE709374C/en
Application granted granted Critical
Publication of DE709374C publication Critical patent/DE709374C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/04Construction, mounting, or centering of coil
    • H04R9/046Construction

Description

Spulenkörper für die Schwingspule elektrodynamischer Lautsprecher hoher Leistung Bei Lautsprechern hoher Leistung hat sich herausgestellt,, daß die auftretenden Kräfte Lagenänderungen der einzelnen Windungen der Schwingspule gegeneinander bewirken können, wodurch insbesondere die hohen Frequenzen stark benachteiligt werden können. Unter Umständen kann sogar die Wicklung längs des Spulenkörpers verschoben werden.Bobbin for the voice coil of electrodynamic loudspeakers high-power loudspeakers with high-power loudspeakers have been found to have occurring forces changes in position of the individual turns of the voice coil against each other can cause, whereby especially the high frequencies are severely disadvantaged can. Under certain circumstances, the winding can even be shifted along the bobbin will.

Es ist bereits bekannt, den Spulenkörper ähnlich der Form einer Garnrolle auszubilden und die Schwingspule so aufzuwickeln, daß praktisch wieder ein zylindrischer Körper entsteht. Diese Anordnung ist zur Aufnahme axialer Kräfte schon besser geeignet als die üblichen auf einen zylindrischen Spulenkörper -gewickelten Schwingspulen. Für Lautsprecher hoher Leistung haben sie sich jedoch ebenfalls als unbrauchbar herausgestellt, da durch die auftretenden Kräfte trotz Verklebens der einzelnen Windungen Lagenänderungen der Windungen der Schwingspule gegeneinander auftreten, wodurch insbesondere die hohen Frequenzen stark benachteiligt werden. Diese Benachteiligung der hohen Frequenzen ist verständlich, wenn berücksichtigt wird, daß, wenn die einzelnen Windungen nicht ganz. fest liegen, bei den schnellen Schwingungen der hohen Frequenzen die Antriebskraft nicht mehr auf den Spulenkörper und damit auf die Membran übertragen wird.It is already known that the bobbin resembles the shape of a spool of thread train and wind up the voice coil so that practically again a cylindrical Body arises. This arrangement is better suited to absorbing axial forces than the usual voice coils wound on a cylindrical bobbin. However, they have also proven to be unusable for high-powered speakers exposed because of the forces occurring despite the sticking together of the individual Windings Changes in the position of the windings of the voice coil against each other occur, whereby the high frequencies in particular are severely disadvantaged. This disadvantage The high frequencies is understandable when it is taken into account when the individual Turns not quite. are fixed, with the fast oscillations of the high frequencies the driving force is no longer transmitted to the coil body and thus to the membrane will.

Gemäß der Erfindung werden die erwähnten Nachteile der bekannten Schwingspule dadurch vermieden, daß der Spulenkörper mit einem der Drahtstärke entsprechenden Gewinde versehen ist, in das die erste Lage der Spule fest eingelegt wird. Infolge dieser Ausbildung wird die in der Schwingspule entstehende Kraft unmittelbar auf den Spulenkörper übertragen. Die Steigung des Gewindes wird der Drahtstärke entsprechend bemessen, insbesondere gleich der Drahtstärke gemacht.According to the invention, the aforementioned disadvantages of the known voice coil are eliminated thereby avoided that the bobbin with a wire size corresponding Thread is provided in which the first layer of the coil is firmly inserted. As a result This training is the force generated in the voice coil directly transferred to the bobbin. The pitch of the thread is corresponding to the wire size dimensioned, in particular made equal to the wire gauge.

Bei einlagigen Wicklungen liegen alle Windungen mit einem großen Teil ihres Umfanges am Spulenkörper an. Bei zweilagigen Wicklungen wird die untere Lage genau so festgelegt.In the case of single-layer windings, all of the turns lie with a large part their circumference on the bobbin. In the case of two-layer windings, the lower layer becomes set exactly that way.

Die Abbildung veranschaulicht ein Ausführungsbeispiel des Erfindungsgegenstandes, und zwar ist lediglich der Spulenkörper ohne die an diesem befestigte Membran dargestellt. Der Spulenkörper t aus Hartpapier oder einem Kunststoff wird mit einem der Drahtstärke angepaßten Gewinde z versehen, in das die einzelnen Drähte 3 fest eingelegt werden. Der untere Teil des Spulenkörpers t zeigt die Anordnung der einlagigen Wicklung. Der obere Teil ist mit einer zweilagigen Wicklung dargestellt, deren zweite Lage aus den Drähten q besteht.The figure illustrates an embodiment of the subject matter of the invention, namely, only the bobbin is shown without the membrane attached to it. The bobbin t made of hard paper or a plastic is made with one of the wire size adapted thread z provided, in which the individual wires 3 are firmly inserted. The lower part of the bobbin t shows the arrangement of the single-layer winding. The upper part is shown with a two-layer winding, the second layer consists of the wires q.

Claims (1)

PATENTANSPRUCH: Spulenkörper für die Schwingspule elektrodynamischer Lautsprecher hoher Leistung, dadurch gekennzeichnet, daß der Spulenkörper mit einem der Drahtstärke entsprechenden Gewinde versehen ist, in das die erste Lage der Spule fest eingelegt wird.PATENT CLAIM: Coil body for the voice coil electrodynamic Loudspeaker high performance, characterized in that the coil body with a the thread corresponding to the wire size is provided, in which the first layer of the coil is firmly inserted.
DET51592D 1939-01-12 1939-01-12 Coil body for the voice coil of high-performance electrodynamic loudspeakers Expired DE709374C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET51592D DE709374C (en) 1939-01-12 1939-01-12 Coil body for the voice coil of high-performance electrodynamic loudspeakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET51592D DE709374C (en) 1939-01-12 1939-01-12 Coil body for the voice coil of high-performance electrodynamic loudspeakers

Publications (1)

Publication Number Publication Date
DE709374C true DE709374C (en) 1941-08-14

Family

ID=7563701

Family Applications (1)

Application Number Title Priority Date Filing Date
DET51592D Expired DE709374C (en) 1939-01-12 1939-01-12 Coil body for the voice coil of high-performance electrodynamic loudspeakers

Country Status (1)

Country Link
DE (1) DE709374C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0685984A3 (en) * 1994-06-01 1996-01-31 Nokia Technology Gmbh Moving coil carrier for loudspeaker.
US5497954A (en) * 1994-07-06 1996-03-12 Abu Ab Line spool for a fishing reel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0685984A3 (en) * 1994-06-01 1996-01-31 Nokia Technology Gmbh Moving coil carrier for loudspeaker.
US5647014A (en) * 1994-06-01 1997-07-08 Nokia Technology Gmbh Voice coil support for loudspeaker
US5497954A (en) * 1994-07-06 1996-03-12 Abu Ab Line spool for a fishing reel

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