SE456299B - Hornhogtalare med reducerat magnetiskt leckflode - Google Patents
Hornhogtalare med reducerat magnetiskt leckflodeInfo
- Publication number
- SE456299B SE456299B SE8400063A SE8400063A SE456299B SE 456299 B SE456299 B SE 456299B SE 8400063 A SE8400063 A SE 8400063A SE 8400063 A SE8400063 A SE 8400063A SE 456299 B SE456299 B SE 456299B
- Authority
- SE
- Sweden
- Prior art keywords
- magnet
- main
- yoke
- primary
- gap
- Prior art date
Links
- 239000011553 magnetic fluid Substances 0.000 title 1
- 230000004907 flux Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
-
- 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
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Traffic Control Systems (AREA)
- Road Signs Or Road Markings (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58012679A JPS59139794A (ja) | 1983-01-31 | 1983-01-31 | 漏洩磁場を打消したホ−ンスピ−カ− |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8400063D0 SE8400063D0 (sv) | 1984-01-09 |
| SE8400063L SE8400063L (sv) | 1984-08-01 |
| SE456299B true SE456299B (sv) | 1988-09-19 |
Family
ID=11812060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8400063A SE456299B (sv) | 1983-01-31 | 1984-01-09 | Hornhogtalare med reducerat magnetiskt leckflode |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4492827A (fr) |
| JP (1) | JPS59139794A (fr) |
| DE (1) | DE3322021A1 (fr) |
| FR (1) | FR2540326B1 (fr) |
| GB (1) | GB2134747B (fr) |
| NL (1) | NL189943C (fr) |
| NO (1) | NO163350C (fr) |
| SE (1) | SE456299B (fr) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6175696U (fr) * | 1984-10-23 | 1986-05-21 | ||
| ATE51994T1 (de) * | 1985-07-17 | 1990-04-15 | Studer Willi Ag | Magnetsystem fuer einen dynamischen lautsprecher. |
| US5070530A (en) * | 1987-04-01 | 1991-12-03 | Grodinsky Robert M | Electroacoustic transducers with increased magnetic stability for distortion reduction |
| US5197104A (en) * | 1991-04-18 | 1993-03-23 | Josef Lakatos | Electrodynamic loudspeaker with electromagnetic impedance sensor coil |
| JPH0560087U (ja) * | 1992-01-16 | 1993-08-06 | オンキヨー株式会社 | ホーンスピーカ |
| US5199005A (en) * | 1992-08-14 | 1993-03-30 | Argotec, Inc. | Electromagnetic drive assembly for under water sonar transducer |
| US5461677A (en) * | 1993-09-16 | 1995-10-24 | Ferrofluidics Corporation | Loudspeaker |
| CA2147684C (fr) * | 1994-04-25 | 1998-12-08 | Akihiro Furuta | Haut-parleur |
| DE29512102U1 (de) * | 1995-07-27 | 1995-10-05 | Nokia (Deutschland) Gmbh, 75175 Pforzheim | Magnetsystem |
| DE19729082A1 (de) * | 1997-07-08 | 1999-01-14 | Nokia Deutschland Gmbh | Abgeschirmtes Magnetsystem |
| WO2002017676A1 (fr) * | 2000-08-24 | 2002-02-28 | Matsushita Electric Industrial Co., Ltd. | Haut-parleur et circuit magnetique correspondant utilise |
| US6940992B2 (en) * | 2002-11-05 | 2005-09-06 | Step Technologies Inc. | Push-push multiple magnetic air gap transducer |
| US9661420B2 (en) * | 2014-08-19 | 2017-05-23 | Apple Inc. | Moving coil motor arrangement with a sound outlet for reducing magnetic particle ingress in transducers |
| US11184712B2 (en) | 2015-05-19 | 2021-11-23 | Bose Corporation | Dual-field single-voice-coil transducer |
| US10499158B2 (en) * | 2015-05-19 | 2019-12-03 | Bose Corporation | Electro-acoustic transducer with radiating acoustic seal and stacked magnetic circuit assembly |
| NL2025207B1 (en) * | 2020-03-25 | 2021-10-20 | Lorentz Audio B V | Electroacoustic transducer and loudspeaker, microphone and electronic device comprising said electroacoustic transducer |
| GB2622042A (en) * | 2022-08-31 | 2024-03-06 | Tethr Ltd | Improved linear actuator |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE556726A (fr) * | 1956-04-18 | |||
| AT213983B (de) * | 1959-04-25 | 1961-03-10 | Philips Nv | Permanentmagnetischer Lautsprecher mit innerhalb des Korbes angeordnetem Magnetsystem |
| GB935747A (en) * | 1959-04-25 | 1963-09-04 | Philips Electrical Ind Ltd | Improvements in or relating to loudspeakers |
| US3134057A (en) * | 1960-07-11 | 1964-05-19 | Sumitomo Metal Ind | Magnetic circuit for the deflection of flux leakage |
| NL6700284A (fr) * | 1967-01-07 | 1968-07-08 | ||
| NL6700283A (fr) * | 1967-01-07 | 1968-07-08 | ||
| DE1907969A1 (de) * | 1968-03-01 | 1969-09-25 | Philips Nv | Magnetsystem mit einem ringfoermigen permanenten Hauptmagnet mit einer Weicheisenober- und -unterplatte und einem Kern mit Hilfsmagnet |
| JPS5511829A (en) * | 1978-07-11 | 1980-01-28 | Fuji Photo Film Co Ltd | Ink jet recording sheet |
| JPS57136897A (en) * | 1981-02-18 | 1982-08-24 | Ibuki Kogyo Kk | Horn speaker |
| DE3150041A1 (de) * | 1981-12-17 | 1983-06-23 | Magnetfabrik Bonn Gmbh Vorm. Gewerkschaft Windhorst, 5300 Bonn | Streuarmes topfmagnetsystem fuer dynamische lautsprecher |
-
1983
- 1983-01-31 JP JP58012679A patent/JPS59139794A/ja active Pending
- 1983-06-18 DE DE19833322021 patent/DE3322021A1/de active Granted
- 1983-06-23 GB GB08317123A patent/GB2134747B/en not_active Expired
- 1983-06-27 US US06/508,248 patent/US4492827A/en not_active Expired - Fee Related
- 1983-07-27 NL NLAANVRAGE8302673,A patent/NL189943C/xx not_active IP Right Cessation
- 1983-11-22 FR FR8318694A patent/FR2540326B1/fr not_active Expired
-
1984
- 1984-01-09 SE SE8400063A patent/SE456299B/sv not_active IP Right Cessation
- 1984-01-30 NO NO840344A patent/NO163350C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3322021A1 (de) | 1984-08-09 |
| NO840344L (no) | 1984-08-01 |
| US4492827A (en) | 1985-01-08 |
| SE8400063D0 (sv) | 1984-01-09 |
| GB2134747A (en) | 1984-08-15 |
| NL189943B (nl) | 1993-04-01 |
| NL189943C (nl) | 1993-09-01 |
| NL8302673A (nl) | 1984-08-16 |
| NO163350B (no) | 1990-01-29 |
| FR2540326A1 (fr) | 1984-08-03 |
| GB2134747B (en) | 1986-10-01 |
| FR2540326B1 (fr) | 1988-08-26 |
| GB8317123D0 (en) | 1983-07-27 |
| SE8400063L (sv) | 1984-08-01 |
| DE3322021C2 (fr) | 1987-08-06 |
| NO163350C (no) | 1990-05-09 |
| JPS59139794A (ja) | 1984-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
Ref document number: 8400063-7 Effective date: 19940810 Format of ref document f/p: F |