JPS5899994U - Magnetic circuit in electroacoustic transducer - Google Patents
Magnetic circuit in electroacoustic transducerInfo
- Publication number
- JPS5899994U JPS5899994U JP19843881U JP19843881U JPS5899994U JP S5899994 U JPS5899994 U JP S5899994U JP 19843881 U JP19843881 U JP 19843881U JP 19843881 U JP19843881 U JP 19843881U JP S5899994 U JPS5899994 U JP S5899994U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic circuit
- electroacoustic transducer
- ferromagnetic material
- utility
- model registration
- 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
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は電気音響変換器の磁気回路の縦断面図、第２図
はその平面図、第３図は各熱処理条件と飽和磁束密度と
の関係を示す図、第４図は各熱処理条件と保磁力との関
係を示す図、第５図は従来のものの磁化曲線の図、第６
図はこの考案のものの磁化曲線の図、第７図は各熱処理
条件と硬度との関係を示す図である。
１・・・・・・永久磁石、２・・・・・・トップヨーク
プレート、３・・・・・・ボトムヨークプレート、４・
・・・・・ポールピース、５・・・・・・ボイスコイル
。Figure 1 is a longitudinal cross-sectional view of the magnetic circuit of the electroacoustic transducer, Figure 2 is its plan view, Figure 3 is a diagram showing the relationship between each heat treatment condition and saturation magnetic flux density, and Figure 4 is a diagram showing the relationship between each heat treatment condition and saturation magnetic flux density. A diagram showing the relationship with coercive force, Figure 5 is a diagram of the conventional magnetization curve, and Figure 6 is a diagram showing the relationship with coercive force.
The figure is a diagram of the magnetization curve of this invention, and FIG. 7 is a diagram showing the relationship between each heat treatment condition and hardness. 1...Permanent magnet, 2...Top yoke plate, 3...Bottom yoke plate, 4...
...Pole piece, 5...Voice coil.
Claims (2)
一部に磁気ギャップを有する磁気回路を構成してなり、
前記部材に熱処理を行った強磁性体を用いたことを特徴
とする電気音響変換器における磁気回路。(1) A magnetic circuit having a magnetic gap in part is configured by a member made of ferromagnetic material and a permanent magnet,
A magnetic circuit in an electroacoustic transducer, characterized in that the member is made of a heat-treated ferromagnetic material.
融点の１〜０．６倍とし、かつ加熱後炉冷を行ったこと
を特徴とする実用新案登録請求の範囲第１項記載の電気
音響変換器における磁気回路。(2) Utility model registration claim 1, characterized in that the heating temperature of the heat treatment is 1 to 0.6 times the melting point expressed in absolute temperature of the ferromagnetic material, and the furnace cooling is performed after heating. magnetic circuit in an electroacoustic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19843881U JPS5899994U (en) | 1981-12-25 | 1981-12-25 | Magnetic circuit in electroacoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19843881U JPS5899994U (en) | 1981-12-25 | 1981-12-25 | Magnetic circuit in electroacoustic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5899994U true JPS5899994U (en) | 1983-07-07 |
Family
ID=30111629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19843881U Pending JPS5899994U (en) | 1981-12-25 | 1981-12-25 | Magnetic circuit in electroacoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5899994U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155822A (en) * | 1978-05-30 | 1979-12-08 | Mitsubishi Electric Corp | Speaker |
| JPS5585195A (en) * | 1978-12-21 | 1980-06-26 | Mitsubishi Electric Corp | Speaker |
| JPS56158596A (en) * | 1980-05-13 | 1981-12-07 | Pioneer Electronic Corp | Magnetic circuit for speaker |
-
1981
- 1981-12-25 JP JP19843881U patent/JPS5899994U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155822A (en) * | 1978-05-30 | 1979-12-08 | Mitsubishi Electric Corp | Speaker |
| JPS5585195A (en) * | 1978-12-21 | 1980-06-26 | Mitsubishi Electric Corp | Speaker |
| JPS56158596A (en) * | 1980-05-13 | 1981-12-07 | Pioneer Electronic Corp | Magnetic circuit for speaker |
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