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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