JPS5542485A - Manufacture of voice coil - Google Patents
Manufacture of voice coilInfo
- Publication number
- JPS5542485A JPS5542485A JP11728678A JP11728678A JPS5542485A JP S5542485 A JPS5542485 A JP S5542485A JP 11728678 A JP11728678 A JP 11728678A JP 11728678 A JP11728678 A JP 11728678A JP S5542485 A JPS5542485 A JP S5542485A
- Authority
- JP
- Japan
- Prior art keywords
- base body
- voice coil
- conductor
- helically
- high energy
- 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
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
PURPOSE:To increase a volume content rate of a conductor that a voice coil part occupies by making highly-precise work possible by working a bobbin base made of Al by a beam with high energy. CONSTITUTION:On the inner wall of cylindrical bobbin base 1 made of Al, non- conductor layer 2 of alumina is formed. Then, the surface of base body 1 is irradiated helically with a laser beam, electron beam, etc., with high energy in a direction from one terminal of base body 1 to the other. As a result, Al residing between the surface of base body 1 where the beam strikes and non-conductor layer 2 on the inner wall is fused and evaporated helically to a beam width, so that helical and continuous coil 3 of Al will be formed on base body 1. Therefore, highly-precise work is made possible by reducing the beam in focusing diameter freely and a volume contact rate of the conductor that the voice coil part occupies can be increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11728678A JPS5542485A (en) | 1978-09-20 | 1978-09-20 | Manufacture of voice coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11728678A JPS5542485A (en) | 1978-09-20 | 1978-09-20 | Manufacture of voice coil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5542485A true JPS5542485A (en) | 1980-03-25 |
JPS5738080B2 JPS5738080B2 (en) | 1982-08-13 |
Family
ID=14707977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11728678A Granted JPS5542485A (en) | 1978-09-20 | 1978-09-20 | Manufacture of voice coil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5542485A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6272254U (en) * | 1985-10-26 | 1987-05-08 | ||
JPS63125099A (en) * | 1986-11-14 | 1988-05-28 | Foster Denki Kk | Production of voice coil |
JPH02103740A (en) * | 1989-07-27 | 1990-04-16 | Alps Electric Co Ltd | Manufacture of driving coil |
-
1978
- 1978-09-20 JP JP11728678A patent/JPS5542485A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6272254U (en) * | 1985-10-26 | 1987-05-08 | ||
JPS63125099A (en) * | 1986-11-14 | 1988-05-28 | Foster Denki Kk | Production of voice coil |
JPH02103740A (en) * | 1989-07-27 | 1990-04-16 | Alps Electric Co Ltd | Manufacture of driving coil |
Also Published As
Publication number | Publication date |
---|---|
JPS5738080B2 (en) | 1982-08-13 |
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