JPS6214795Y2 - - Google Patents
Info
- Publication number
- JPS6214795Y2 JPS6214795Y2 JP376879U JP376879U JPS6214795Y2 JP S6214795 Y2 JPS6214795 Y2 JP S6214795Y2 JP 376879 U JP376879 U JP 376879U JP 376879 U JP376879 U JP 376879U JP S6214795 Y2 JPS6214795 Y2 JP S6214795Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- voice coil
- upper plate
- speaker
- magnetic gap
- 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 12
- 230000002093 peripheral effect Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- ZDWGXBPVPXVXMQ-UHFFFAOYSA-N bis(2-ethylhexyl) nonanedioate Chemical compound CCCCC(CC)COC(=O)CCCCCCCC(=O)OCC(CC)CCCC ZDWGXBPVPXVXMQ-UHFFFAOYSA-N 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP376879U JPS6214795Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-01-16 | 1979-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP376879U JPS6214795Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-01-16 | 1979-01-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55104894U JPS55104894U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-07-22 |
| JPS6214795Y2 true JPS6214795Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-04-15 |
Family
ID=28808057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP376879U Expired JPS6214795Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-01-16 | 1979-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6214795Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7729504B2 (en) * | 2006-02-14 | 2010-06-01 | Ferrotec Corporation | Ferrofluid centered voice coil speaker |
| US9288580B2 (en) * | 2012-12-20 | 2016-03-15 | Panasonic Intellectual Property Management Co., Ltd. | Speaker device, audio visual equipment, mobile information processing apparatus, vehicle, and earphone |
-
1979
- 1979-01-16 JP JP376879U patent/JPS6214795Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55104894U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-07-22 |
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