JPS63180299A - Inner-magnetic type magnetic circuit for dynamic type speaker - Google Patents
Inner-magnetic type magnetic circuit for dynamic type speakerInfo
- Publication number
- JPS63180299A JPS63180299A JP1179187A JP1179187A JPS63180299A JP S63180299 A JPS63180299 A JP S63180299A JP 1179187 A JP1179187 A JP 1179187A JP 1179187 A JP1179187 A JP 1179187A JP S63180299 A JPS63180299 A JP S63180299A
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- magnetic circuit
- magnetic
- type
- magnet
- 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
- 230000005520 electrodynamics Effects 0.000 claims description 4
- 230000002542 deteriorative effect Effects 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、各種動電型スピーカ用内磁型磁気回路に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an internal magnetic circuit for various electrodynamic speakers.
従来の技術
従来の動電型スピーカ用内磁型磁気回路は、第２図に示
すように構成されていた。すなわち、ヨーク１の底部上
面にマグネット２を接合、その上部にポールピース３を
接合し、ヨーク１とポールピース３で磁気ギャップ４を
構成するというものである。この時、ヨーク厚みｔ。と
ヨークのポールピースとの対向部分高さｔ、は等しい。2. Description of the Related Art A conventional internal magnetic circuit for an electrodynamic speaker was constructed as shown in FIG. That is, the magnet 2 is bonded to the bottom upper surface of the yoke 1, the pole piece 3 is bonded to the top of the magnet 2, and the yoke 1 and the pole piece 3 form a magnetic gap 4. At this time, the yoke thickness is t. and the height t of the portion of the yoke facing the pole piece are equal.
発明が解決しようとする問題点
上記のような構成においては、磁気回路の薄型化を図る
ためにはヨーク１の厚みｔｏを薄くすると、ヨーク１の
ポールピース３との対向部分高さｔ、も低くなるので、
磁気ギャップ部の磁気抵抗が増し、磁気ギャップ部を通
る磁束の総和が減少するという現象が起こる。すなわち
従来の磁気回路の構成では、磁気回路の薄型化を図るた
め、ヨーク厚みを薄くすると、磁気回路の性能が劣化す
るという問題があった。本発明はこの問題点を解決出来
る動電型スピーカ用内磁型磁気回路を提供せんとするも
のである。Problems to be Solved by the Invention In the above configuration, if the thickness to of the yoke 1 is reduced in order to reduce the thickness of the magnetic circuit, the height t of the portion of the yoke 1 facing the pole piece 3 will also decrease. Because it becomes lower,
A phenomenon occurs in which the magnetic resistance of the magnetic gap increases and the total magnetic flux passing through the magnetic gap decreases. That is, in the conventional magnetic circuit configuration, when the yoke thickness is reduced in order to make the magnetic circuit thinner, there is a problem in that the performance of the magnetic circuit deteriorates. The present invention aims to provide an internal magnetic circuit for an electrodynamic speaker that can solve this problem.
問題点を解決するだめの手段
上記の問題を解決するために、本発明は、ヨークのポー
ルピースに対向している部分を他の部分より厚くしたも
のである。Means for Solving the Problems In order to solve the above problems, the present invention is such that the portion of the yoke facing the pole piece is made thicker than the other portions.
作用
上記の構成をすると、ポールピースに対向している部分
の高さを変更しないで、ヨークの厚みを薄くする事がで
きる。これによって、磁気ギャップ部の磁気抵抗を一定
に保つ事ができるので、磁気回路の性能劣化をまねくこ
となく、ヨークの厚みを薄く、すなわち磁気回路の薄型
化を図ることができる。Effect: With the above configuration, the thickness of the yoke can be reduced without changing the height of the portion facing the pole piece. As a result, the magnetic resistance of the magnetic gap portion can be kept constant, so the thickness of the yoke, that is, the thickness of the magnetic circuit can be reduced without deteriorating the performance of the magnetic circuit.
実施例 以下、本発明の実施例を図面を用いて説明する。Example Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例であり、ヨーク６の底部上面
にマグネット６を接合さらにマグネットの上面にポール
ピース７を接合している。この例では、ヨーク６にあら
かじめ、小さな孔を加工しておき、その後この小さな孔
部分を折り曲げ、ヨーク７と対向する部分の高さを得る
というものである。この時、ヨーク厚みｔ。′とヨーク
のポールピースとの対向部分高さｔ、はｔ、＞ｔ０’で
ある。尚、同図で８は磁気ギャップである。FIG. 1 shows an embodiment of the present invention, in which a magnet 6 is bonded to the top surface of the bottom of a yoke 6, and a pole piece 7 is bonded to the top surface of the magnet. In this example, a small hole is formed in the yoke 6 in advance, and then this small hole is bent to obtain the height of the portion facing the yoke 7. At this time, the yoke thickness is t. The height t of the opposing portion of the yoke and the pole piece is t>t0'. In addition, 8 in the figure is a magnetic gap.
発明の効果
以上のように、本発明の磁気回路は、磁気回路の性能を
劣化させることなく薄型化が図れる画期的なものである
。さらに、材料節減による磁気回回路の軽量化、コスト
ダウンを可能にするものでアシ、軽薄短小、高いコスト
ハフォーマンスという市場のニーズに対応した工業的価
値の犬なるものである。Effects of the Invention As described above, the magnetic circuit of the present invention is an epoch-making device that can be made thinner without deteriorating the performance of the magnetic circuit. Furthermore, it makes it possible to reduce the weight and cost of magnetic circuits by saving materials, making it an industrial value dog that meets the market needs of light, thin, short, and high cost performance.
第１図は本発明の一実施例を示す半断面図、第２図は従
来の内磁型磁気回路を示す半断面図である。
６・・・・・・ヨーク、６・・・・・・マグネット、７
・・・・・・ポールピース
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
区
＝埼。
一１
５− ヨーク
６− マグネット
７− ポールピース
８− 磁気ギャップ
」
１＋ ン尤Ｏ′
ビ
ｔｏ婁１゜FIG. 1 is a half-sectional view showing an embodiment of the present invention, and FIG. 2 is a half-sectional view showing a conventional internal magnet type magnetic circuit. 6... Yoke, 6... Magnet, 7
・・・・・・Name of Paul Peace agent Patent attorney Toshio Nakao and 1 other person 1st
Ward = Sai. 1 5- Yoke 6- Magnet 7- Pole piece 8- Magnetic gap 1+ O' Bito 1°
Claims (1)
分が他の部分より厚い事を特徴とする動電型スピーカ用
内磁型磁気回路。An internal magnet type magnetic circuit for an electrodynamic speaker, characterized in that the part that faces the pole piece and forms the magnetic gap is thicker than the other part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1179187A JPS63180299A (en) | 1987-01-21 | 1987-01-21 | Inner-magnetic type magnetic circuit for dynamic type speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1179187A JPS63180299A (en) | 1987-01-21 | 1987-01-21 | Inner-magnetic type magnetic circuit for dynamic type speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63180299A true JPS63180299A (en) | 1988-07-25 |
Family
ID=11787737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1179187A Pending JPS63180299A (en) | 1987-01-21 | 1987-01-21 | Inner-magnetic type magnetic circuit for dynamic type speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63180299A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015149597A (en) * | 2014-02-06 | 2015-08-20 | オンキヨー＆パイオニアテクノロジー株式会社 | Magnetic circuit of electrodynamic speaker and electrodynamic speaker |
| JP2017521951A (en) * | 2014-07-15 | 2017-08-03 | ノキア テクノロジーズ オーユー | Sound transducer |
-
1987
- 1987-01-21 JP JP1179187A patent/JPS63180299A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015149597A (en) * | 2014-02-06 | 2015-08-20 | オンキヨー＆パイオニアテクノロジー株式会社 | Magnetic circuit of electrodynamic speaker and electrodynamic speaker |
| JP2017521951A (en) * | 2014-07-15 | 2017-08-03 | ノキア テクノロジーズ オーユー | Sound transducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63180299A (en) | Inner-magnetic type magnetic circuit for dynamic type speaker | |
| JPS63146691A (en) | Dynamic loudspeaker | |
| JP2571136Y2 (en) | Speaker unit | |
| JPS5880999A (en) | Loud speaker | |
| JPS635348Y2 (en) | ||
| JPS6329358Y2 (en) | ||
| JPS63224592A (en) | Speaker | |
| JPS5825440Y2 (en) | Buzzer | |
| JPS583695U (en) | electrodynamic speaker | |
| JPS6040191U (en) | ribbon type speaker | |
| JPH01135896U (en) | ||
| JPS60111198U (en) | speaker | |
| JPS63215295A (en) | Electrodynamic speaker | |
| JPS58141691U (en) | Electrodynamic speaker magnetic circuit | |
| JPS6043092U (en) | flat speaker | |
| JPS63146688A (en) | Dynamic loud speaker | |
| JPS61186099A (en) | Directivity dynamic microphone unit | |
| JPS6022091U (en) | electrodynamic speaker | |
| JPS6045591U (en) | speaker | |
| JPS58176493U (en) | speaker | |
| JPH09154193A (en) | Magnetic shield type speaker | |
| JPS58104092U (en) | speaker | |
| JPS58125493U (en) | speaker | |
| JPS5876294U (en) | Low leakage magnetic flux speaker | |
| JPH01124797U (en) |