JPS6219036Y2 - - Google Patents
Info
- Publication number
- JPS6219036Y2 JPS6219036Y2 JP610881U JP610881U JPS6219036Y2 JP S6219036 Y2 JPS6219036 Y2 JP S6219036Y2 JP 610881 U JP610881 U JP 610881U JP 610881 U JP610881 U JP 610881U JP S6219036 Y2 JPS6219036 Y2 JP S6219036Y2
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- diaphragm
- plate
- magnetic fluid
- voice coil
- 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.)
- Expired
Links
- 239000011553 magnetic fluid Substances 0.000 claims description 21
- 230000008859 change Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP610881U JPS6219036Y2 (en]) | 1981-01-20 | 1981-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP610881U JPS6219036Y2 (en]) | 1981-01-20 | 1981-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57119990U JPS57119990U (en]) | 1982-07-26 |
| JPS6219036Y2 true JPS6219036Y2 (en]) | 1987-05-15 |
Family
ID=29804436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP610881U Expired JPS6219036Y2 (en]) | 1981-01-20 | 1981-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6219036Y2 (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7729504B2 (en) * | 2006-02-14 | 2010-06-01 | Ferrotec Corporation | Ferrofluid centered voice coil speaker |
-
1981
- 1981-01-20 JP JP610881U patent/JPS6219036Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57119990U (en]) | 1982-07-26 |
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