FR2336847A1 - Case for electromechanical-acoustic transducer for telephone - with vibrating assembly with movable coil and vibrating diaphragm - Google Patents
Case for electromechanical-acoustic transducer for telephone - with vibrating assembly with movable coil and vibrating diaphragmInfo
- Publication number
- FR2336847A1 FR2336847A1 FR7539729A FR7539729A FR2336847A1 FR 2336847 A1 FR2336847 A1 FR 2336847A1 FR 7539729 A FR7539729 A FR 7539729A FR 7539729 A FR7539729 A FR 7539729A FR 2336847 A1 FR2336847 A1 FR 2336847A1
- Authority
- FR
- France
- Prior art keywords
- vibrating
- diaphragm
- housing
- movable coil
- electromechanical
- 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.)
- Granted
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
- H04R9/10—Telephone receivers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Case comprises a magnetic circuit with air gap, a vibrating assembly with a movable coil and vibrating diaphragm, and a housing with a cover. These three components are rotatable, and co-operate after coaxial mounting to ensure centring of the coil in the air gap by simple positioning of the magnetic circuit and diaphragm, in coaxial cylindrical recesses in the housing. Pref. the vibrating membrane is PVC, and the housing is e.g., a polyamide. Two diametrically opposed pins are anchored in the housing, and are connected to two output wires by applying Ag solder to diaphragm and housing, partic. to the ends of these wires adhered to the diaphragm by the solder and the ends of the pins.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7539729A FR2336847A1 (en) | 1975-12-24 | 1975-12-24 | Case for electromechanical-acoustic transducer for telephone - with vibrating assembly with movable coil and vibrating diaphragm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7539729A FR2336847A1 (en) | 1975-12-24 | 1975-12-24 | Case for electromechanical-acoustic transducer for telephone - with vibrating assembly with movable coil and vibrating diaphragm |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2336847A1 true FR2336847A1 (en) | 1977-07-22 |
FR2336847B1 FR2336847B1 (en) | 1981-11-27 |
Family
ID=9164162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7539729A Granted FR2336847A1 (en) | 1975-12-24 | 1975-12-24 | Case for electromechanical-acoustic transducer for telephone - with vibrating assembly with movable coil and vibrating diaphragm |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2336847A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542551A1 (en) * | 1983-03-07 | 1984-09-14 | Picart Lebas | Electroacoustic transducer of dynamic type, in particular for apparatuses |
-
1975
- 1975-12-24 FR FR7539729A patent/FR2336847A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542551A1 (en) * | 1983-03-07 | 1984-09-14 | Picart Lebas | Electroacoustic transducer of dynamic type, in particular for apparatuses |
Also Published As
Publication number | Publication date |
---|---|
FR2336847B1 (en) | 1981-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |