JPS63158090U - - Google Patents
Info
- Publication number
- JPS63158090U JPS63158090U JP5013087U JP5013087U JPS63158090U JP S63158090 U JPS63158090 U JP S63158090U JP 5013087 U JP5013087 U JP 5013087U JP 5013087 U JP5013087 U JP 5013087U JP S63158090 U JPS63158090 U JP S63158090U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic circuit
- outer diameter
- rare earth
- utility
- micro speaker
- 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
- 229910052761 rare earth metal Inorganic materials 0.000 claims 1
- 150000002910 rare earth metals Chemical class 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Description
第１図、第２図は本考案マイクロスピーカーの
断面図、第３図は従来法マイクロスピーカーの断
面図、第４図は本考案のマイクロスピーカー用磁
石の外観図。第５図は従来法のマイクロスピーカ
ー用磁石の外観図。
１……永久磁石、２……コイル、３……可動鉄
片、４……振動板、５……ヨーク、６……押えリ
ング、７……ギヤツプ、８……底板。
FIGS. 1 and 2 are cross-sectional views of the microspeaker of the present invention, FIG. 3 is a cross-sectional view of a conventional microspeaker, and FIG. 4 is an external view of the microspeaker magnet of the present invention. Figure 5 is an external view of a conventional micro speaker magnet. 1... Permanent magnet, 2... Coil, 3... Movable iron piece, 4... Vibration plate, 5... Yoke, 6... Presser ring, 7... Gap, 8... Bottom plate.
Claims (1)
、磁気回路の一部にラジアル異方性リング状希土
類磁石を用いたことを特徴とするマイクロスピー
カの磁気回路。 A magnetic circuit for a micro speaker having an outer diameter of 20 mm or less, characterized in that a radially anisotropic ring-shaped rare earth magnet is used in a part of the magnetic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5013087U JPS63158090U (en) | 1987-04-02 | 1987-04-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5013087U JPS63158090U (en) | 1987-04-02 | 1987-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63158090U true JPS63158090U (en) | 1988-10-17 |
Family
ID=30873202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5013087U Pending JPS63158090U (en) | 1987-04-02 | 1987-04-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63158090U (en) |
-
1987
- 1987-04-02 JP JP5013087U patent/JPS63158090U/ja active Pending
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