JPS5730497A - Diaphragm for speaker - Google Patents
Diaphragm for speakerInfo
- Publication number
- JPS5730497A JPS5730497A JP10547080A JP10547080A JPS5730497A JP S5730497 A JPS5730497 A JP S5730497A JP 10547080 A JP10547080 A JP 10547080A JP 10547080 A JP10547080 A JP 10547080A JP S5730497 A JPS5730497 A JP S5730497A
- Authority
- JP
- Japan
- Prior art keywords
- skin materials
- frequency
- core material
- mica
- stuck
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Laminated Bodies (AREA)
Abstract
PURPOSE:To increase the limit frequency of high-frequency range reproduction and to decrease a resonance peak by sticking skin materials, which is each made of mica and thermosetting resin, to both the sides of a core material formed by folding a metallic thin film radially and by further sticking SiC layers. CONSTITUTION:Long-sized Al foil having 20mum thickness and 9mm. width is folded alternately at the center part and outer circumference of a circle and arranged radially to form a core material having 3.5cm diameter. On the upper and lower edges of the core material 1, circular skin materials 2 and 2' are stuck by using adhesives 3 and 3'. Those skin materials 2 and 2' are made of 20mum thickness thin composite films 4 and 4' obtained by curing mica and epoxy resin over heating and pressing and 1mum thickness SiC layers 5 and 5' stuck on the surfaces of the thin films 4 and 4' by a high-frequency sputtering method. Those skin materials 2 and 2' have greater specific elasticity than the Al foil, and greater internal loss as well. Therefore, the resonance frequency of a diaphragm for high frequency range formed as mentioned above is increased, a sound pressure peak at the resonance frequency is decreased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10547080A JPS5730497A (en) | 1980-07-30 | 1980-07-30 | Diaphragm for speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10547080A JPS5730497A (en) | 1980-07-30 | 1980-07-30 | Diaphragm for speaker |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5730497A true JPS5730497A (en) | 1982-02-18 |
Family
ID=14408469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10547080A Pending JPS5730497A (en) | 1980-07-30 | 1980-07-30 | Diaphragm for speaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5730497A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6383168U (en) * | 1986-11-19 | 1988-06-01 | ||
JPS63142995U (en) * | 1987-03-09 | 1988-09-20 | ||
US5003610A (en) * | 1988-04-14 | 1991-03-26 | Fostex Corporation | Whole surface driven speaker |
US5430805A (en) * | 1990-12-27 | 1995-07-04 | Chain Reactions, Inc. | Planar electromagnetic transducer |
US5627903A (en) * | 1993-10-06 | 1997-05-06 | Chain Reactions, Inc. | Variable geometry electromagnetic transducer |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5437720A (en) * | 1977-08-30 | 1979-03-20 | Mitsubishi Electric Corp | Diaphragm for speakers |
JPS5469425A (en) * | 1977-11-12 | 1979-06-04 | Mitsubishi Metal Corp | Acoustic converter double layer vibrator and method of fabricating same |
-
1980
- 1980-07-30 JP JP10547080A patent/JPS5730497A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5437720A (en) * | 1977-08-30 | 1979-03-20 | Mitsubishi Electric Corp | Diaphragm for speakers |
JPS5469425A (en) * | 1977-11-12 | 1979-06-04 | Mitsubishi Metal Corp | Acoustic converter double layer vibrator and method of fabricating same |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6383168U (en) * | 1986-11-19 | 1988-06-01 | ||
JPS63142995U (en) * | 1987-03-09 | 1988-09-20 | ||
US5003610A (en) * | 1988-04-14 | 1991-03-26 | Fostex Corporation | Whole surface driven speaker |
US5430805A (en) * | 1990-12-27 | 1995-07-04 | Chain Reactions, Inc. | Planar electromagnetic transducer |
US5953438A (en) * | 1990-12-27 | 1999-09-14 | Chain Reactions, Inc. | Planar electromagnetic transducer |
US5627903A (en) * | 1993-10-06 | 1997-05-06 | Chain Reactions, Inc. | Variable geometry electromagnetic transducer |
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