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AT103800B - Electrodynamic telephone. - Google Patents

Electrodynamic telephone.

Info

Publication number
AT103800B
AT103800B AT103800DA AT103800B AT 103800 B AT103800 B AT 103800B AT 103800D A AT103800D A AT 103800DA AT 103800 B AT103800 B AT 103800B
Authority
AT
Austria
Prior art keywords
ribs
electrodynamic
membrane
telephone according
electrodynamic telephone
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT103800B publication Critical patent/AT103800B/en

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
    • H04R9/06Loudspeakers
    • H04R9/063Loudspeakers using a plurality of acoustic drivers
    • 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
    • H04R9/047Construction in which the windings of the moving coil lay in the same plane

Landscapes

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

Description

  

   <Desc/Clms Page number 1> 
 



  Elektrodynamisches Telephon. 
 EMI1.1 
 getreue Wiedergabe von Musik und Sprache erzielt wird. Gemäss der Erfindung werden über die Oberfläche einer Membran mehrere von den Telephonströmen durchflossene Rippen verteilt. Die in den Rippen fliessenden elektrischen Ströme und das die Rippen durchsetzende Magnetfeld rufen dann Kräfte 
 EMI1.2 
 An der   : \Membran1,   die beispielsweise aus Glimmer besteht, ist auf ihrer Unterseite eine schlangenförmig verlaufende Rippe 2 befestigt. Diese wird vorzugsweise aus einem Aluminiumstreifen hergestellt, um 
 EMI1.3 
 felde. Die Felder werden durch die   Elektromagnete   18, 19, 20 erregt, so dass in der Mitte z. B. ein Südpol   S,   an beiden Seiten je ein Nordpol N entsteht. Die Felder verlaufen vom   Polschuh 21 Über   eiserne Brücken 22, 
 EMI1.4 
 



  Zwischen den Polschuhen 21,   2. J und 24   und den Brücken 22 und   25   liegen die Rippen 12-17. Man gewinnt auf diese Weise gegenüber der Ausführung nach   Fig. l   und 2 an Wickelraum für die Elektromagnete, so dass für die erregenden Spulen 26 viel Platz zur   Verfügung   steht. Die Polschuhe 21, 23,24 und die Brücken. 22 und 25 sind mit der Membran 11   zusammen   in einen einzigen Rahmen befestigt, der aus den beiden Teilen 27 und 28 besteht. Dieser gemeinsame Einbau in demselben Rahmen ermöglicht die Einhaltung genauer   Zwischenräume   zwischen den Rippen und den Polschuhen. Der Rahmen wird dann mit seinen Teilen als Ganzes in das Gehäuse 29 mit dem Joch 50 gesetzt, in dem die Elektromagnete 18, 19, 20 befestigt sind.

   Die Rippen werden an der Membran mit umgebogenen Rändern angeklebt ; zur Sicherheit können einzelne Teile 30 der Ränder durch die Membran hindurchgesteckt und auf der Oberseite der Membran umgebogen werden. 

 <Desc/Clms Page number 2> 

 



   Man kann die Membran auch in einzelne Bänder zerschneiden durch   Schnitte ; die zwischen   je zwei Rippen parallel zu ihnen geführt werden. Ordnet man solche einzelne Bänder nicht nebeneinander, sondern übereinander an, so ergibt sich eine Konstruktion, die eine besonders einfache Erzeugung kräftiger   Magnetfelder gestattet. Ein derartiges Ausführungsbeispiel ist in Fig. 5 in Vorderansicht, in Fig. 6 im Querschnitt gezeichnet. Die bandförmigen Membranen 31, 32 und 33 tragen die Rippen 34, 35 und 36.   



   Diese Rippen werden von Magnetfeldern durchsetzt, die von den Polschuhen 37 und   38   ausgehen. Die
Membranen sowohl wie die Polschuhe werden von einem Gehäuse 39 aus unmagnetischem Material getragen. Der   magnetische Kraftfluss   geht   von-kräftigen   Elektromagneten 40 und 41 aus, die an ver- schiedenen Stellen an den Längsseiten der Polschuhe vorgesehen sind. Die Schallwellen treten durch 
 EMI2.1 
 so dass die von beiden ausgehenden Schallwellen durch denselben Schlitz nach aussen treten. Eine der- artige Ausführung ist in Fig. 7 gezeichnet. 



   . PATENT-ANSPRUCHE :
1. Elektrodynamisches Telephon, dadurch gekennzeichnet, dass mehrere stromdurchflossene
Rippen über die Oberfläche der Membran verteilt sind (Fig. 1, 2,3, 4).



   <Desc / Clms Page number 1>
 



  Electrodynamic telephone.
 EMI1.1
 faithful reproduction of music and speech is achieved. According to the invention, several ribs through which the telephone currents flow are distributed over the surface of a membrane. The electrical currents flowing in the ribs and the magnetic field penetrating the ribs then create forces
 EMI1.2
 A serpentine rib 2 is attached to the underside of the membrane 1, which consists for example of mica. This is preferably made from an aluminum strip in order to
 EMI1.3
 fields. The fields are excited by the electromagnets 18, 19, 20, so that in the middle z. B. a south pole S, a north pole N on each side. The fields run from the pole piece 21 over iron bridges 22,
 EMI1.4
 



  The ribs 12-17 lie between the pole pieces 21, 2. J and 24 and the bridges 22 and 25. In this way, compared to the embodiment according to FIGS. 1 and 2, winding space for the electromagnets is gained, so that a lot of space is available for the exciting coils 26. The pole pieces 21, 23, 24 and the bridges. 22 and 25 are fastened together with the membrane 11 in a single frame which consists of the two parts 27 and 28. This common installation in the same frame enables precise gaps to be maintained between the ribs and the pole pieces. The frame is then placed with its parts as a whole in the housing 29 with the yoke 50 in which the electromagnets 18, 19, 20 are fixed.

   The ribs are glued to the membrane with folded edges; For safety, individual parts 30 of the edges can be pushed through the membrane and bent over on the top of the membrane.

 <Desc / Clms Page number 2>

 



   The membrane can also be cut into individual bands by means of cuts; which are guided parallel to them between each two ribs. If such individual strips are not arranged next to one another, but one on top of the other, a construction results which allows particularly simple generation of powerful magnetic fields. Such an embodiment is shown in FIG. 5 in a front view and in FIG. 6 in cross section. The band-shaped membranes 31, 32 and 33 carry the ribs 34, 35 and 36.



   These ribs are penetrated by magnetic fields emanating from the pole pieces 37 and 38. The
Both the membranes and the pole pieces are carried by a housing 39 made of non-magnetic material. The magnetic flux of force emanates from powerful electromagnets 40 and 41, which are provided at different points on the longitudinal sides of the pole shoes. The sound waves pass through
 EMI2.1
 so that the sound waves emanating from both pass through the same slot to the outside. Such an embodiment is shown in FIG.



   . PATENT CLAIMS:
1. Electrodynamic telephone, characterized in that several current-carrying
Ribs are distributed over the surface of the membrane (Fig. 1, 2,3, 4).

 

Claims (1)

2. Elektrodynamisches Telephon nach Anspruch 1, dadurch gekennzeichnet, dass mehrere benach- barte geradlinige, einander parallele Rippen mit ungleichnamigen Magnetpolen abwechseln (Fig. 1 und 2). 2. Electrodynamic telephone according to claim 1, characterized in that several adjacent rectilinear, parallel ribs alternate with magnetic poles of different names (Figs. 1 and 2). 3. Elektrodynamisches Telephon nach Anspruch 1, dadurch gekennzeichnet, dass mehrere benach- barte, parallel zueinanderliegende Rippen vom Sprechstrom gleichsinnig durchflossen und von dem magnetischen Kraftfluss gleichsinnig durchsetzt werden (Fig. 3 und 4). 3. Electrodynamic telephone according to claim 1, characterized in that a plurality of adjacent ribs lying parallel to one another are traversed by the speech current in the same direction and are traversed in the same direction by the magnetic flux (FIGS. 3 and 4). 4. Elektrodynamisches Telephon nach Anspruch 1, dadurch gekennzeichnet, dass die mit Rippen besetzte Membran mit den das magnetische Feld führenden Polschuhen in einem Rahmen zusammen- gebaut ist (Fig. 3 und 4). EMI2.2 4. Electrodynamic telephone according to claim 1, characterized in that the membrane covered with ribs is assembled in a frame with the pole pieces guiding the magnetic field (Fig. 3 and 4). EMI2.2
AT103800D 1923-06-08 1924-04-11 Electrodynamic telephone. AT103800B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES63058D DE410114C (en) 1923-06-08 1923-06-08 Electrodynamic telephone

Publications (1)

Publication Number Publication Date
AT103800B true AT103800B (en) 1926-07-26

Family

ID=27770804

Family Applications (1)

Application Number Title Priority Date Filing Date
AT103800D AT103800B (en) 1923-06-08 1924-04-11 Electrodynamic telephone.

Country Status (6)

Country Link
US (1) US1604532A (en)
AT (1) AT103800B (en)
CH (1) CH109033A (en)
DE (1) DE410114C (en)
GB (1) GB217192A (en)
NL (1) NL15444C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419608A (en) * 1935-05-29 1947-04-29 Submarine Signal Co Electrical oscillator
US2444967A (en) * 1936-03-23 1948-07-13 Submarine Signal Co Oscillator
US2517565A (en) * 1939-01-21 1950-08-08 Harvey C Hayes Electrodynamic transceiver for transmission and reception of sound
US2437085A (en) * 1943-03-12 1948-03-02 Rca Corp Heat detection device
US2789161A (en) * 1951-04-05 1957-04-16 Joseph B Brennan Loud-speakers
US3027541A (en) * 1951-08-11 1962-03-27 Harris Transducer Corp Structure for use in an electrodynamic transducer
US2978671A (en) * 1951-08-11 1961-04-04 Harris Transducer Corp Electrodynamic transducer
US2978669A (en) * 1954-03-08 1961-04-04 Harris Transducer Corp Underwater electrodynamic acoustic transducer with air-filled composite diaphragm
US3018465A (en) * 1954-05-04 1962-01-23 Harris Transducer Corp Compliant acoustic radiating means
US3066200A (en) * 1958-08-11 1962-11-27 William Ward Jackson Speaker device
US3164686A (en) * 1959-09-21 1965-01-05 Tibbetts Industries Electrodynamic transducer
FR1269138A (en) * 1960-06-23 1961-08-11 Improvements to loudspeakers, microphones, and similar electrodynamic devices

Also Published As

Publication number Publication date
US1604532A (en) 1926-10-26
GB217192A (en) 1924-09-11
NL15444C (en)
DE410114C (en) 1925-02-26
CH109033A (en) 1925-05-16

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