DE102009024709A1 - Tweeter, has dome-shaped spherical membrane comprising symmetrical cavity in center and driven by circular moving coil, where cavity is immovably fixed at membrane middle point that is fixed at trapezoidal mounting portion - Google Patents

Tweeter, has dome-shaped spherical membrane comprising symmetrical cavity in center and driven by circular moving coil, where cavity is immovably fixed at membrane middle point that is fixed at trapezoidal mounting portion Download PDF

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Publication number
DE102009024709A1
DE102009024709A1 DE200910024709 DE102009024709A DE102009024709A1 DE 102009024709 A1 DE102009024709 A1 DE 102009024709A1 DE 200910024709 DE200910024709 DE 200910024709 DE 102009024709 A DE102009024709 A DE 102009024709A DE 102009024709 A1 DE102009024709 A1 DE 102009024709A1
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Germany
Prior art keywords
membrane
cavity
fixed
tweeter
center
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DE200910024709
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German (de)
Inventor
Klaus Reck
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Individual
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Individual
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Priority to DE200910024709 priority Critical patent/DE102009024709A1/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Abstract

The tweeter has a dome-shaped spherical membrane (1) comprising a symmetrical cavity in center, where the cavity is immovably fixed at a membrane middle point (3). The membrane is driven by a circular moving coil (2). A hole (8) is provided in an upper plate (5). The membrane middle point is fixed at a trapezoidal mounting portion (4) that comprises a passage. A permanent magnet (6) and a lower pole plate (7) are provided in the tweeter.

Description

Nach dem Stand der Technik haben Kalottenhochtöner eine in Richtung Schallabstrahlung konvex gewölbte Membrane, die zur Erzielung von hoher innerer Dämpfung aus beschichtetem Gewebe besteht. Der Nachteil dieser Membranen ist ihre mangelnde Stabilität an ihrem mechanisch schwachen Mittelpunkt, wodurch sich dieser Bereich insbesondere bei hohen Schalldruckpegeln unkontrolliert bewegt und den Klang verzerrt.To In the state of the art dome tweeters have a convex in the direction of sound radiation domed Membrane which is made of coated fabric for achieving high internal damping. The disadvantage of these membranes is their lack of stability on their mechanically weak center, causing this area in particular uncontrollably moved at high sound pressure levels and the sound distorted.

Diesen Nachteil vermeiden Ringstrahler, deren plane Membranmitte rückseitig an einem Montageteil fixiert ist und deren Phasenkorrekturteil vor der Membrane die nachteilige Schallbündelung vermindern soll. Ein Nachteil dieser Anordnung ist die verminderte Abstrahlfläche durch die unbewegliche Fläche in der Mitte. Weiterere Nachteile sind Laufzeitunterschiede zwischen der Membrane und den Reflektionen von dem Phasenkorrekturteil.this Disadvantage avoid Ring radiator, the plane diaphragm center back is fixed to a mounting part and whose phase correction part before the membrane is to reduce the adverse sound bundling. One Disadvantage of this arrangement is the reduced emission area the immovable surface in the middle. Further disadvantages are runtime differences between the diaphragm and the reflections from the phase correction part.

Die vorliegende Erfindung besteht aus einer Anordnung mit Membranform gemäß Schnittzeichnung 1, mit einer Membrane (1), die von einer kreisrunden Schwingspule (2) angetrieben wird. Die Membrane besteht aus gleichem Material wie Weichkalotten nach dem Stand der Technik.The present invention consists of an arrangement with membrane shape according to sectional drawing 1 , with a membrane ( 1 ), by a circular voice coil ( 2 ) is driven. The membrane is made of the same material as Weichkalotten according to the prior art.

Die Membrane besitzt in der Mitte eine symmetrische Vertiefung, die in einem Mittelpunkt (3) endet, welcher an einem darunter liegenden Montageteil (4) angeklebt ist.The membrane has in the middle a symmetrical depression, which in a center ( 3 ), which on an underlying mounting part ( 4 ) is glued.

Der Magnet ist ein Ausführungsbeispiel mit oberer Polplatte (5), Permanentmagnet (6) und unterer Polplatte (7).The magnet is an embodiment with upper pole plate ( 5 ), Permanent magnet ( 6 ) and lower pole plate ( 7 ).

Schnittzeichnung 2 zeigt die gleiche Membrane (1) und Schwingspule (2), jedoch mit einem Loch (8) in der oberen Polplatte (5), dem Permanentmagneten (6) und der unteren Polplatte (7), um ein rückseitiges Volumen zum Zwecke einer niedrigeren Resonanzfrequenz anzukoppeln. Der Membranmittelpunkt (3) ist bei dieser Ausführung an einem trapezförmigen Montageteil (4) fixiert, welches mindestens den gleichen Durchlass besitzt wie das Loch (8).sectional drawing 2 shows the same membrane ( 1 ) and voice coil ( 2 ), but with a hole ( 8th ) in the upper pole plate ( 5 ), the permanent magnet ( 6 ) and the lower pole plate ( 7 ) to couple a back volume for a lower resonant frequency. The membrane center ( 3 ) is in this embodiment on a trapezoidal mounting part ( 4 ), which has at least the same passage as the hole ( 8th ).

Die Vorteile dieser Erfindung sind:

  • – Die Membrane schwingt wie ein Ringstrahler mit unbeweglicher Mitte
  • – Die Abstrahlung ist weniger gebündelt als bei einem Ringstrahler
  • – Das Phasenkorrekturteil, dessen Reflektionen und der Verlust an Membranfläche entfallen
The advantages of this invention are:
  • - The membrane oscillates like a ring radiator with stationary center
  • - The radiation is less concentrated than with a ring emitter
  • - The phase correction part, whose reflections and the loss of membrane area omitted

Claims (1)

Hochtonlautsprecher, dadurch gekennzeichnet, dass eine kuppelförmige Kalottenmembrane in der Mitte eine symmetrische Vertiefung besitzt, die an ihrem Mittelpunkt unbeweglich fixiert ist.Tweeter, characterized in that a dome-shaped Kalottenmembrane in the middle has a symmetrical recess which is fixed immovably at its center.
DE200910024709 2009-06-12 2009-06-12 Tweeter, has dome-shaped spherical membrane comprising symmetrical cavity in center and driven by circular moving coil, where cavity is immovably fixed at membrane middle point that is fixed at trapezoidal mounting portion Withdrawn DE102009024709A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200910024709 DE102009024709A1 (en) 2009-06-12 2009-06-12 Tweeter, has dome-shaped spherical membrane comprising symmetrical cavity in center and driven by circular moving coil, where cavity is immovably fixed at membrane middle point that is fixed at trapezoidal mounting portion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910024709 DE102009024709A1 (en) 2009-06-12 2009-06-12 Tweeter, has dome-shaped spherical membrane comprising symmetrical cavity in center and driven by circular moving coil, where cavity is immovably fixed at membrane middle point that is fixed at trapezoidal mounting portion

Publications (1)

Publication Number Publication Date
DE102009024709A1 true DE102009024709A1 (en) 2010-12-16

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Family Applications (1)

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DE200910024709 Withdrawn DE102009024709A1 (en) 2009-06-12 2009-06-12 Tweeter, has dome-shaped spherical membrane comprising symmetrical cavity in center and driven by circular moving coil, where cavity is immovably fixed at membrane middle point that is fixed at trapezoidal mounting portion

Country Status (1)

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DE (1) DE102009024709A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059963B (en) * 1957-04-20 1959-06-25 Telefunken Gmbh Smallest receiver with a loudspeaker with a diameter of up to 10 cm
CH463576A (en) * 1967-11-23 1968-10-15 Zellweger Uster Ag Electroacoustic transducer with adjustable electroacoustic properties
CH619821A5 (en) * 1975-01-07 1980-10-15 Manger J W
DE19710967C1 (en) * 1997-03-17 1998-10-22 Karl Heinz Koeppen Full range speakers
DE10303030A1 (en) * 2003-01-25 2004-08-05 Norman Gerkinsmeyer driver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059963B (en) * 1957-04-20 1959-06-25 Telefunken Gmbh Smallest receiver with a loudspeaker with a diameter of up to 10 cm
CH463576A (en) * 1967-11-23 1968-10-15 Zellweger Uster Ag Electroacoustic transducer with adjustable electroacoustic properties
CH619821A5 (en) * 1975-01-07 1980-10-15 Manger J W
DE19710967C1 (en) * 1997-03-17 1998-10-22 Karl Heinz Koeppen Full range speakers
DE10303030A1 (en) * 2003-01-25 2004-08-05 Norman Gerkinsmeyer driver

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8122 Nonbinding interest in granting licenses declared
R120 Application withdrawn or ip right abandoned

Effective date: 20130712