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DE20113156U1 - Bending shaft converter with a hole in the surface membrane to reinforce the mid-range - Google Patents

Bending shaft converter with a hole in the surface membrane to reinforce the mid-range

Info

Publication number
DE20113156U1
DE20113156U1 DE20113156U DE20113156U DE20113156U1 DE 20113156 U1 DE20113156 U1 DE 20113156U1 DE 20113156 U DE20113156 U DE 20113156U DE 20113156 U DE20113156 U DE 20113156U DE 20113156 U1 DE20113156 U1 DE 20113156U1
Authority
DE
Germany
Prior art keywords
surface membrane
hole
range
mid
reinforce
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 - Lifetime
Application number
DE20113156U
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.)
THEIS KARL HEINZ
Original Assignee
THEIS KARL HEINZ
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 THEIS KARL HEINZ filed Critical THEIS KARL HEINZ
Priority to DE20113156U priority Critical patent/DE20113156U1/en
Publication of DE20113156U1 publication Critical patent/DE20113156U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Description

BeschreibungDescription

Biegewellenwandler mit Bohrung in der Flächenmembran zur Verstärkung des Mitteltonbereichs.Bending wave transducer with a hole in the surface membrane to amplify the midrange range.

Die Erfindung betrifft einen Biegewellenwandler, bei dem eine oder mehrere Schwingspulen auf eine Flächenmembran aufgebracht werden. Diese Schwingspule oder Schwingspulen versetzen die Flächenmembran durch elektrische Ansteuerung in Schwingungen (Biegewellen). Die Oberfläche dieser Flächenmembran strahlt durch diese Schwingungen Schall ab.The invention relates to a bending wave transducer in which one or more voice coils are applied to a surface membrane. This voice coil or voice coils cause the surface membrane to vibrate (bending waves) by electrical control. The surface of this surface membrane emits sound through these vibrations.

Solche Biegewellenwandler werden aus den unterschiedlichsten Membranmaterialien hergestellt. Durch ihre unterschiedlichen Eigenschaften sind die verschiedenen Materialien mehr oder weniger geeignet, eine natürliche Wiedergabe von Tonquellen wie z.B. CD, DVD, Mikrofon usw. zu ermöglichen.Such bending wave transducers are made from a wide variety of membrane materials. Due to their different properties, the different materials are more or less suitable for enabling natural reproduction of sound sources such as CDs, DVDs, microphones, etc.

Es gibt Anwendungen, bei denen ganz spezieller Wert auf ein bestimmtes Membranmaterial gelegt wird, das aber nicht immer den akustischen Erfordernissen entspricht.There are applications where particular emphasis is placed on a particular membrane material, but this does not always meet the acoustic requirements.

Die Erfindung soll einen Biegewellenwandler schaffen, dessen Membran aus einem Material besteht, das trotz seiner hohen Dämpfung und daher schlechten Übertragung des Mitteltonbereiches als Schallwandler für Sprache, Musik usw. eingesetzt werden kann. Dies gilt insbesondere für Verbundglas aus mindestens zwei Glasscheiben oder für Einscheibenglas, aber auch für viele andere Materialien, wie z.B. Stahl.The invention is intended to create a bending wave transducer whose membrane consists of a material that, despite its high attenuation and therefore poor transmission of the mid-range, can be used as a sound transducer for speech, music, etc. This applies in particular to laminated glass made of at least two panes of glass or to single-pane glass, but also to many other materials, such as steel.

Um hier Abhilfe zu schaffen, versieht man deshalb die Flächenmembran im Bereich der Schwingspule/Schwingspulen mit einer oder mehreren Durchgangsbohrungen. Die Schwingspule/Schwingspulen wird/werden nun so auf die Flächenmembran aufgebracht, dass sich dieTo remedy this, the surface membrane is provided with one or more through holes in the area of the voice coil(s). The voice coil(s) is/are then attached to the surface membrane in such a way that the

Durchgangsbohrung/Durchgangsbohrungen innerhalb der Verbindungsstelle/Verbindungsstellen von Schwingspule und Flächenmembran befindet/befinden. Dies ermöglicht, den innerhalb des Schwingspulensystems entstehenden Schall als Nutzschall durch die Durchgangsbohrung zur anderen Seite der Flächenmembran zu führen. Da diese Schallwellen genau in dem Frequenzbereich liegen, der normalerweise durch das Membranmaterial gedämpft wird, ergänzt sich der auf der Flächenmembran entstehende Schall mit dem Schall, der durch die Bohrung/Bohrungen zugeführt wird, hervorragend.Through hole(s) are located within the connection point(s) of the voice coil and the surface membrane. This allows the sound generated within the voice coil system to be guided as useful sound through the through hole to the other side of the surface membrane. Since these sound waves are exactly in the frequency range that is normally dampened by the membrane material, the sound generated on the surface membrane complements the sound fed through the hole(s) perfectly.

Claims (3)

1. Biegewellenwandler, dadurch gekennzeichnet, dass die Flächenmembran im Bereich innerhalb der z. B. kreisrunden Verbindungsstelle von Schwingspule und Flächenmembran mit mindestens einer Durchgangsbohrung versehen ist. Die Form der Bohrung kann hierbei frei gewählt werden und ist für die Funktion nicht maßgeblich. 1. Bending wave transducer, characterized in that the surface membrane is provided with at least one through hole in the area within the circular connection point of the voice coil and the surface membrane. The shape of the hole can be freely selected and is not decisive for the function. 2. Biegewellenwandler nach Anspruch 1, dadurch gekennzeichnet, dass die Durchgangsbohrung sowohl im inneren Bereich der Verbindungsstelle von Schwingspule und Flächenmembran liegt, als auch darüber hinausragt. 2. Bending wave transducer according to claim 1, characterized in that the through-bore is located both in the inner region of the connection point between the voice coil and the surface membrane and also projects beyond it. 3. Biegewellenwandler nach Anspruch 1 mit mehreren Durchgangsbohrungen, dadurch gekennzeichnet, dass mindestens eine Durchgangsbohrung teilweise außerhalb des inneren Bereichs der Verbindungsstelle von Schwingspule und Flächenmembran liegt. 3. Bending wave transducer according to claim 1 with a plurality of through holes, characterized in that at least one through hole is located partially outside the inner region of the connection point of the voice coil and the surface membrane.
DE20113156U 2001-08-15 2001-08-15 Bending shaft converter with a hole in the surface membrane to reinforce the mid-range Expired - Lifetime DE20113156U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20113156U DE20113156U1 (en) 2001-08-15 2001-08-15 Bending shaft converter with a hole in the surface membrane to reinforce the mid-range

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20113156U DE20113156U1 (en) 2001-08-15 2001-08-15 Bending shaft converter with a hole in the surface membrane to reinforce the mid-range

Publications (1)

Publication Number Publication Date
DE20113156U1 true DE20113156U1 (en) 2002-02-07

Family

ID=7960311

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20113156U Expired - Lifetime DE20113156U1 (en) 2001-08-15 2001-08-15 Bending shaft converter with a hole in the surface membrane to reinforce the mid-range

Country Status (1)

Country Link
DE (1) DE20113156U1 (en)

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20020314

R156 Lapse of ip right after 3 years

Effective date: 20050301