JPS5516504A - Thin dynamic pronouncing body - Google Patents
Thin dynamic pronouncing bodyInfo
- Publication number
- JPS5516504A JPS5516504A JP8770778A JP8770778A JPS5516504A JP S5516504 A JPS5516504 A JP S5516504A JP 8770778 A JP8770778 A JP 8770778A JP 8770778 A JP8770778 A JP 8770778A JP S5516504 A JPS5516504 A JP S5516504A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- pronouncing
- voice coil
- thin
- same plane
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- 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
- H04R9/06—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
PURPOSE:To make a body miniature and thin by arranging a permanent magnet on the same plane as a voice coil. CONSTITUTION:Voice coil 8, wound around voice-coil receptacle 7, is arranged in the gap between cylindrical yoke 4 and permanent magnet 9. Permanent magnets 9 and cylindrical yoke 4 are arranged on the same plane as voice coil 8. Permanent magnet 9 consists of a fan-shaped unit magnet with identical polarity at its internal circumference and opposite oplarity at its external circumference.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8770778A JPS5516504A (en) | 1978-07-20 | 1978-07-20 | Thin dynamic pronouncing body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8770778A JPS5516504A (en) | 1978-07-20 | 1978-07-20 | Thin dynamic pronouncing body |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5516504A true JPS5516504A (en) | 1980-02-05 |
Family
ID=13922377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8770778A Pending JPS5516504A (en) | 1978-07-20 | 1978-07-20 | Thin dynamic pronouncing body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5516504A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01300696A (en) * | 1988-05-30 | 1989-12-05 | Daido Steel Co Ltd | Magnetic circuit using permanent magnet |
-
1978
- 1978-07-20 JP JP8770778A patent/JPS5516504A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01300696A (en) * | 1988-05-30 | 1989-12-05 | Daido Steel Co Ltd | Magnetic circuit using permanent magnet |
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