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 poleInfo
- 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
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
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)
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)
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 |
-
1977
- 1977-03-08 DE DE19772709972 patent/DE2709972A1/en active Pending
Cited By (5)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OHJ | Non-payment of the annual fee |