GB1471300A - Diaphragm for electroacoustic transducer - Google Patents
Diaphragm for electroacoustic transducerInfo
- Publication number
- GB1471300A GB1471300A GB5580974A GB5580974A GB1471300A GB 1471300 A GB1471300 A GB 1471300A GB 5580974 A GB5580974 A GB 5580974A GB 5580974 A GB5580974 A GB 5580974A GB 1471300 A GB1471300 A GB 1471300A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- conductor
- membrane
- projections
- make
- 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
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
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction 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)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
1471300 Diaphragms FOSTER ELECTRIC CO Ltd 24 Dec 1974 55809/74 Heading H4J A diaphragm 1 for an electrodynamic transducer such as a loud-speaker, microphone or headphone comprises a non-magnetic insulative membrane 6 carrying a conductor 4. The membrane 6 and portion of the conductor 4 are undulated by a plurality of part-spherical projections 5. Each projection 5 is of a dimension sufficient to extend across at least one conductor portion and at most over two conductor portions. Preferably the membrane 6 is of polyimide and the conductor 4 is of aluminium. The diaphragm 1 may be circular and adhered to a support 2. The projections 5 are formed by pressure moulding and extend uniformly over the entire vibratory portion of the diaphragm 1. They are preferably shallow yet make the diaphragm relatively rigid. As many projections 5 as possible are formed, so as to make the flat spaces in between as small as possible. The diaphragm 1 is for use in an electrodynamic transducer having magnetic pole surfaces of an associated magnetic circuit on the side of the diaphragm 1 remote from the conductor 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742461258 DE2461258C3 (en) | 1974-12-23 | 1974-12-23 | Diaphragm for an electroacoustic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1471300A true GB1471300A (en) | 1977-04-21 |
Family
ID=5934472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5580974A Expired GB1471300A (en) | 1974-12-23 | 1974-12-24 | Diaphragm for electroacoustic transducer |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2461258C3 (en) |
| GB (1) | GB1471300A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012608A1 (en) * | 1978-12-14 | 1980-06-25 | The Rank Organisation Limited | Isodynamic electromagnetic acoustic transducer with stressed diaphragm |
| WO1984000460A1 (en) * | 1982-07-19 | 1984-02-02 | Anthony Bernard Clarke | Electromagnetic-acoustic transducer |
| CN108600919A (en) * | 2018-07-04 | 2018-09-28 | 歌尔股份有限公司 | A kind of vibrating diaphragm and sound-producing device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4480155A (en) * | 1982-03-01 | 1984-10-30 | Magnepan, Inc. | Diaphragm type magnetic transducer |
| US4471173A (en) * | 1982-03-01 | 1984-09-11 | Magnepan, Inc. | Piston-diaphragm speaker |
| US4914750A (en) * | 1987-07-13 | 1990-04-03 | Avm Hess, Inc. | Sound transducer |
| US4903308A (en) * | 1988-02-10 | 1990-02-20 | Linaeum Corporation | Audio transducer with controlled flexibility diaphragm |
| US5198624A (en) * | 1988-02-10 | 1993-03-30 | Linaeum Corporation | Audio transducer with controlled flexibility diaphragm |
| US6104825A (en) * | 1997-08-27 | 2000-08-15 | Eminent Technology Incorporated | Planar magnetic transducer with distortion compensating diaphragm |
| US6097830A (en) * | 1997-11-17 | 2000-08-01 | Sonigistix Corporation | Transducer diaphragm with thermal strain relief |
-
1974
- 1974-12-23 DE DE19742461258 patent/DE2461258C3/en not_active Expired
- 1974-12-24 GB GB5580974A patent/GB1471300A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012608A1 (en) * | 1978-12-14 | 1980-06-25 | The Rank Organisation Limited | Isodynamic electromagnetic acoustic transducer with stressed diaphragm |
| WO1984000460A1 (en) * | 1982-07-19 | 1984-02-02 | Anthony Bernard Clarke | Electromagnetic-acoustic transducer |
| CN108600919A (en) * | 2018-07-04 | 2018-09-28 | 歌尔股份有限公司 | A kind of vibrating diaphragm and sound-producing device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2461258A1 (en) | 1976-07-01 |
| DE2461258C3 (en) | 1978-09-07 |
| DE2461258B2 (en) | 1978-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |