JPS5586288A - Electroacoustic converter - Google Patents
Electroacoustic converterInfo
- Publication number
- JPS5586288A JPS5586288A JP16249678A JP16249678A JPS5586288A JP S5586288 A JPS5586288 A JP S5586288A JP 16249678 A JP16249678 A JP 16249678A JP 16249678 A JP16249678 A JP 16249678A JP S5586288 A JPS5586288 A JP S5586288A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- spaces
- voice coil
- bobbin
- input
- 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
- H04R9/022—Cooling arrangements
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 obtain a high-efficiency speaker with improved resistance to input, by continuously cooling heat produced by a voice coil by a filling fluid. CONSTITUTION:Two internal and external spaces 17a and 17b formed of yoke members 11, and 14-16 of a magnetic material, center pole 1, voice coil bobbin 5, and plate 3 are filled with cooling fluid 18. Here, movable bobbin 5 is sealed by magnetic liquid 13 obtained by dispersing iron into oil which never mixes with fluid 18 in spaces of members 14 and 16 and bobbin 5, and voice coil 4 is positioned in space 17b without meeting members 15 and 16. As a result, coil 4 is driven in fluid 18 in spaces 17a and 17b; and a large input of heat is cooled by fluid 18 and cooling effect is maintained by the convection of the fluid. Consequently, a high-e-ficiency speaker with high resistance to input can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16249678A JPS5586288A (en) | 1978-12-22 | 1978-12-22 | Electroacoustic converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16249678A JPS5586288A (en) | 1978-12-22 | 1978-12-22 | Electroacoustic converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5586288A true JPS5586288A (en) | 1980-06-28 |
JPS6113679B2 JPS6113679B2 (en) | 1986-04-15 |
Family
ID=15755717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16249678A Granted JPS5586288A (en) | 1978-12-22 | 1978-12-22 | Electroacoustic converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5586288A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2315074A1 (en) * | 2006-01-24 | 2009-03-16 | Acustica Beyma, S.A. | Loudspeaker with active autorefrigeration. (Machine-translation by Google Translate, not legally binding) |
WO2020161669A1 (en) | 2019-02-06 | 2020-08-13 | OLTRAMARE, Michel | System for cooling the stationary winding of an induction motor |
WO2021205295A1 (en) | 2020-04-08 | 2021-10-14 | OLTRAMARE, Michel | Dual axial magnetic flux induction speaker |
-
1978
- 1978-12-22 JP JP16249678A patent/JPS5586288A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2315074A1 (en) * | 2006-01-24 | 2009-03-16 | Acustica Beyma, S.A. | Loudspeaker with active autorefrigeration. (Machine-translation by Google Translate, not legally binding) |
WO2020161669A1 (en) | 2019-02-06 | 2020-08-13 | OLTRAMARE, Michel | System for cooling the stationary winding of an induction motor |
US11930340B2 (en) | 2019-02-06 | 2024-03-12 | Michel OLTRAMARE | System for cooling the stationary winding of an induction motor |
WO2021205295A1 (en) | 2020-04-08 | 2021-10-14 | OLTRAMARE, Michel | Dual axial magnetic flux induction speaker |
Also Published As
Publication number | Publication date |
---|---|
JPS6113679B2 (en) | 1986-04-15 |
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