DE2709972A1 - Double loudspeaker with one moving coil drive system - has two oppositely directed conical membranes linked by rod passing through hollow magnet pole - Google Patents

Double loudspeaker with one moving coil drive system - has two oppositely directed conical membranes linked by rod passing through hollow magnet pole

Info

Publication number
DE2709972A1
DE2709972A1 DE19772709972 DE2709972A DE2709972A1 DE 2709972 A1 DE2709972 A1 DE 2709972A1 DE 19772709972 DE19772709972 DE 19772709972 DE 2709972 A DE2709972 A DE 2709972A DE 2709972 A1 DE2709972 A1 DE 2709972A1
Authority
DE
Germany
Prior art keywords
connecting element
drive system
moving coil
loudspeaker
oppositely directed
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.)
Pending
Application number
DE19772709972
Other languages
German (de)
Inventor
Wilhelm Dr Ing Lepper
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19772709972 priority Critical patent/DE2709972A1/en
Priority to DE19772712451 priority patent/DE2712451A1/en
Publication of DE2709972A1 publication Critical patent/DE2709972A1/en
Pending 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers

Landscapes

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

Abstract

The loudspeaker has a cylindrical coaxial magnetic pole passing inside the moving coil at one end. Its other end extends round to form a further pole face on the outside of the coil ---i.e. to form the air gap in which the coil moves. The coil (3) is fixed to one conical membrane. The cylindrical coaxial magnetic pole is hollow and contains an axially movable aluminium rod that connects the apex of the membrane to the apex of a second conical membrane on the other side of the unit. The unit therefore uses only one drive system to radiate sound in opposite directions.

Description

Neuer dynamischer LautsprecherNew dynamic speaker

Es ist bekannt, daß es Lautsprecherboxen gibt mit einer zusätzlichen Passivmembran . Die Erregung dieser Membran geschieht jedoch nur durch Luftschwingungen im Innern der Lautsprecherbox, die durch die aktive Membran erzeugt werden.It is known that there are loudspeaker boxes with an additional one Passive membrane. However, this membrane is only excited by vibrations in the air inside the loudspeaker box, which are generated by the active membrane.

Um eine dynamische Lautsprechereinheit nach verschiedenen insbesondere entgegengesetzten Seiten abstrahlen zu lassen, benötigte man bisher wenigstens 2 voneinander getrennte dynamische Lautsprecher.To make a dynamic loudspeaker unit according to various in particular to radiate opposite sides, you previously needed at least 2 separate dynamic speakers.

Nachstehend beschriebene Erfindung benötigt aber nur einen Lautsprecher, dessen Magnet und Schwingspule wenigstens zwei Membrankonusse bedient die in entgegengesetzte Richtungen abstrahlen. Bei diesen dynamischen Lautsprechern ist der mittlere Magnetpol durchbohrt bzw. besitzt einen Durchlaß, durch welchen nach rückwärts ein leichtes Verbindungselement bzw. eine dünne Aluminiumstange gesteckt wird, an deren beiden Enden je ein Membrankonus zentral befestigt wird.The invention described below only requires one loudspeaker, whose magnet and voice coil serve at least two diaphragm cones in the opposite one Radiate directions. In these dynamic speakers, the middle is the magnetic pole pierced or has a passage through which a slight backward Connecting element or a thin aluminum rod is plugged into both of them A membrane cone is attached centrally at each end.

Der eine Membrankonus strahlt also nach vorwärts und der andere nach rückwärts, wobei nur der vordere Membrankonus wie ueblich an die Schwingspule angeschlossen ist. Die Membrankonusse schwingen wegen der mechanischen Kopplung im Gegentakt.One membrane cone therefore radiates forwards and the other afterwards backwards, with only the front membrane cone connected to the voice coil as usual is. The diaphragm cones vibrate in push-pull because of the mechanical coupling.

Man kann natürlich in das Verbindungselement einen Umkehrhebel anbringen.You can of course attach a reversing lever in the connecting element.

Es lassen sich an das hintere Ende des Verbindungaelementes auch mehrere Meabrankonusse anbringen, wenn man es in 2 oder mehrere Abwinklungen aufteilt.Several can also be attached to the rear end of the connecting element Attach meabran cones if you divide it into 2 or more angles.

Wenn aus irgendwelchen Gründen die beiden Membrankonusse nicht weit genug auseinandergesetzt werden können, um den akustischen Kurzschluß der Lauteprechereinheit zu unterbinden, dann empfiehlt ee sich, zwischen die beiden Yembrankonusse eine Trennwand zu setzen, Durch diese Trennwand wird das Verbindungselement hindurchgeführt.If for some reason the two diaphragm cones do not go far enough to be able to deal with the acoustic short-circuit of the loudspeaker unit to prevent, it is advisable to place a To set partition wall, The connecting element becomes through this partition passed through.

In Abbildung sind dargestellts 1 - Membrankonus 2 = Magnet 3 1 Spule 4 1 Verbindungselement 5 1 Gehäus LeerseiteThe figure shows 1 - membrane cone 2 = magnet 3 1 coil 4 1 connecting element 5 1 housing Blank page

Claims (1)

FATENTANSPRUCHE 1. Neuer dynamischer Lautsprecher, dadurch gekennzeichnet, daß der mittlere Magnetpol dee topfförmigen Magneten einen zentralen Durchlaß besitzt, durch welchen ein Verbindungselement gesteckt wird, das die Schwingepule bzw den an die Schwingepule angeschlossenen Membrankonus mit einem weiteren in entgegengesetzter Richtung wirkenden Membrankonus verbindet, 2) Neuer dynamischer Lautsprecher, nach Anspruch 1 dadurch gekennzeichnet, daß das Verbindungselement ein dünnes Stäbachen oder Röhrchen ist aus möglichst leichtem und starrem Material (z. B. Aluminium). LEGAL CLAIMS 1. New dynamic loudspeaker, characterized that the central magnetic pole of the cup-shaped magnet has a central passage, through which a connecting element is inserted that the voice coil or the connected to the voice coil membrane cone with another in the opposite direction Direction acting membrane cone connects, 2) New dynamic loudspeaker, according to Claim 1, characterized in that the connecting element is a thin rod or the tube is made of the lightest and most rigid material possible (e.g. aluminum). 3) Neuer dynamischer Lautsprecher, nach Anspruch 1 und 2 dadurch gekennzeichnet, daß das Verbindungselement an den Spitzen der Membrankonusse verbunden ist. 3) New dynamic loudspeaker according to claim 1 and 2 thereby characterized in that the connecting element is connected to the tips of the diaphragm cones is. 4) Neuer dynamischer Lautsprecher, nach Anspruch 1, 2 und 3 dadurch gekennzeichnet, daß das oder die Verbindungselemente Schwingungsumkehrelemente besitzen. 4) New dynamic loudspeaker according to claim 1, 2 and 3 thereby characterized in that the connecting element or elements have oscillation reversal elements. 5) Neuer dynamischer Lautsprecher, nach Anspruch 1, 2, 3 und 4 dadurch gekennzeichnet, daß das Verbindungselement nicht nur durch den Magneten geführt wird sondern auch durch eine hinter dem Magneten angeordnete Trennwand. 5) New dynamic loudspeaker according to claim 1, 2, 3 and 4 thereby characterized in that the connecting element is not only passed through the magnet but also by a partition behind the magnet.
DE19772709972 1977-03-08 1977-03-08 Double loudspeaker with one moving coil drive system - has two oppositely directed conical membranes linked by rod passing through hollow magnet pole Pending DE2709972A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19772709972 DE2709972A1 (en) 1977-03-08 1977-03-08 Double loudspeaker with one moving coil drive system - has two oppositely directed conical membranes linked by rod passing through hollow magnet pole
DE19772712451 DE2712451A1 (en) 1977-03-08 1977-03-22 Dynamic loudspeaker with pot shaped magnets - has two oppositely directed conical membranes driven by shared moving coil system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772709972 DE2709972A1 (en) 1977-03-08 1977-03-08 Double loudspeaker with one moving coil drive system - has two oppositely directed conical membranes linked by rod passing through hollow magnet pole

Publications (1)

Publication Number Publication Date
DE2709972A1 true DE2709972A1 (en) 1978-09-14

Family

ID=6003032

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772709972 Pending DE2709972A1 (en) 1977-03-08 1977-03-08 Double loudspeaker with one moving coil drive system - has two oppositely directed conical membranes linked by rod passing through hollow magnet pole

Country Status (1)

Country Link
DE (1) DE2709972A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127060A (en) * 1987-10-02 1992-06-30 Linaeum Corporation Centering device for speaker diaphragm
EP0804048A2 (en) * 1996-04-26 1997-10-29 NOKIA TECHNOLOGY GmbH Loudspeaker
CN109040920A (en) * 2018-07-26 2018-12-18 维沃移动通信有限公司 A kind of vocal structure and terminal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127060A (en) * 1987-10-02 1992-06-30 Linaeum Corporation Centering device for speaker diaphragm
EP0804048A2 (en) * 1996-04-26 1997-10-29 NOKIA TECHNOLOGY GmbH Loudspeaker
EP0804048A3 (en) * 1996-04-26 2004-07-14 Harman Audio Electronic Systems GmbH Loudspeaker
CN109040920A (en) * 2018-07-26 2018-12-18 维沃移动通信有限公司 A kind of vocal structure and terminal
US11343615B2 (en) 2018-07-26 2022-05-24 Vivo Mobile Communication Co., Ltd. Sound producing structure and terminal

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