JPS581035Y2 - electroacoustic transducer - Google Patents
electroacoustic transducerInfo
- Publication number
- JPS581035Y2 JPS581035Y2 JP1978002550U JP255078U JPS581035Y2 JP S581035 Y2 JPS581035 Y2 JP S581035Y2 JP 1978002550 U JP1978002550 U JP 1978002550U JP 255078 U JP255078 U JP 255078U JP S581035 Y2 JPS581035 Y2 JP S581035Y2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- electroacoustic transducer
- magnet
- disc
- voice coil
- 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
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
【考案の詳細な説明】
本考案は電気音響変換器に関し、特に複数のボイスコイ
ルを有する平面型電気音響変換器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electroacoustic transducer, and more particularly to a planar electroacoustic transducer having multiple voice coils.
通常、平面型スピーカは平面振動板にボイスコイルを巻
装したコイルボビンを設けたものが＝般的である。Generally, a flat speaker has a coil bobbin around which a voice coil is wound around a flat diaphragm.
そのようなスピーカの場合主に低音用として使用できる
のみで、全帯域用スピーカとしても使用することは困難
であった。In the case of such a speaker, it can only be used mainly for bass sounds, and it is difficult to use it as a full-band speaker.
本考案は上記欠点を解決するためになされた。The present invention has been made to solve the above drawbacks.
すなわち、本考案の第１の目的は全帯域平面型電気音響
変換器を提供することにある。That is, the first object of the present invention is to provide a full-band planar electroacoustic transducer.
また、本考案の第２の目的はボイスコイルを直接振動板
に設は振動板の質量を軽減した全帯域平面型電気音響変
換器を提供することにある。A second object of the present invention is to provide a full-band planar electroacoustic transducer in which the voice coil is directly mounted on the diaphragm, thereby reducing the mass of the diaphragm.
以下、本考案を実施例に従い詳細に説明する。Hereinafter, the present invention will be explained in detail according to examples.
１は、磁気回路を形成する円盤状プレートで、その上面
中心に円柱状の第１マグネツト２、その第１マグネツト
を中心として同心円上に円環状の第２マグネツト３及び
４を載置し、しかも隣り合うマグネットの磁極が互いに
上下逆になるようにして所定の環状の磁気空隙５を形成
するよう適宜な間隔にて位置し、磁気回路を構成する。Reference numeral 1 denotes a disc-shaped plate forming a magnetic circuit, on which a cylindrical first magnet 2 is placed at the center of its upper surface, and annular second magnets 3 and 4 are placed concentrically around the first magnet. The magnetic poles of adjacent magnets are positioned upside down to form a predetermined annular magnetic gap 5 at appropriate intervals to form a magnetic circuit.
その磁気回路の外周部には非磁性材料からなるモールド
部が形成され、そのモールド部６には円盤状の振動板Ｉ
を支持するダンパー８の一端部を固定する段部９が設げ
られている。A molded part made of a non-magnetic material is formed on the outer periphery of the magnetic circuit, and the molded part 6 has a disc-shaped diaphragm I.
A step 9 is provided to fix one end of the damper 8 that supports the damper 8.
振動板Ｉは円状の複数のコルゲーションが形成さ瓜それ
ぞれのコルゲーションの下端部７１には互いに独立した
ボイスコイル１０が設げられており、ボイスコイル１０
は磁気空隙５に位置している。The diaphragm I has a plurality of circular corrugations formed therein. A voice coil 10 independent from each other is provided at the lower end 71 of each corrugation.
is located in the magnetic gap 5.
また振動板７の中心コルゲーションの内側にはダンパー
１１が設けられ、振動板１を支持している。Further, a damper 11 is provided inside the center corrugation of the diaphragm 7 to support the diaphragm 1.
このように構成されたスピーカのボイスコイルに対し、
広域の信号は主として中心部のボイスコイル１０に、中
域の信号は中心部のボイスコイルに、また低域の信号は
周辺部のボイスコイルに信号が印加されると、振動板７
の中心部は広域を、また中心部及びその周辺部は中域を
、振動板の全面は低域として駆動する。For the voice coil of a speaker configured in this way,
When a wide range signal is mainly applied to the central voice coil 10, a midrange signal is applied to the central voice coil, and a low range signal is applied to the peripheral voice coil, the diaphragm 7
The center of the diaphragm drives the wide range, the center and its surroundings drive the mid range, and the entire surface of the diaphragm drives the low range.
以上の如く本考案は、第１に１つの円盤上振動板にて低
音、中音、高音の全帯域をカバーできると共に、第２に
振動板自体の質量が軽くなる等の実用上類る大なる効果
を有している。As described above, the present invention has the following advantages: firstly, it is possible to cover the entire range of bass, midrange, and treble with a single disc-shaped diaphragm, and secondly, the mass of the diaphragm itself is lighter, which is similar in practical terms. It has the following effect.
図は本考案の一実施例である音響変換器の断面図である
。
１・・・・・・プレート、２，３．４・・・・・・マグ
ネット、７・・・・・・振動板、
１０−・・・・・ボイスコイル。The figure is a sectional view of an acoustic transducer that is an embodiment of the present invention. 1... Plate, 2, 3.4... Magnet, 7... Vibration plate, 10-... Voice coil.
Claims (1)
を配し、この第１のマグネットを中心として同心円上に
複数の円環状マグネットを配設し、隣接するマグネット
による磁極が互いに上下逆になるように形成して複数の
環状磁気空隙を形成するとともに、同心円上の複数のコ
ルゲーションが形成された円盤状振動板の前記コルゲー
ションの下端部にそれぞれ独立したボイスコイルを固着
し、このボイスコイルを前記環状磁気空隙内に位置させ
たことを特徴とする電気音響変換器。A cylindrical first magnet is placed at the center of the top surface of the disc-shaped plate, and a plurality of annular magnets are placed concentrically around this first magnet, so that the magnetic poles of adjacent magnets are upside down. A disc-shaped diaphragm is formed to form a plurality of annular magnetic gaps, and a plurality of concentric corrugations are formed. Independent voice coils are fixed to the lower ends of the corrugations, respectively. An electroacoustic transducer characterized in that it is located within an annular magnetic gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978002550U JPS581035Y2 (en) | 1978-01-13 | 1978-01-13 | electroacoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978002550U JPS581035Y2 (en) | 1978-01-13 | 1978-01-13 | electroacoustic transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54107326U JPS54107326U (en) | 1979-07-28 |
| JPS581035Y2 true JPS581035Y2 (en) | 1983-01-08 |
Family
ID=28805716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978002550U Expired JPS581035Y2 (en) | 1978-01-13 | 1978-01-13 | electroacoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581035Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4652882B2 (en) * | 2005-03-29 | 2011-03-16 | 古河電気工業株式会社 | Thin speaker |
| JP2013219642A (en) * | 2012-04-11 | 2013-10-24 | Foster Electric Co Ltd | Thin type speaker |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5057424A (en) * | 1973-09-14 | 1975-05-19 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022711Y2 (en) * | 1975-12-29 | 1985-07-05 | 澤藤 正 | Electrical-acoustic transducer |
-
1978
- 1978-01-13 JP JP1978002550U patent/JPS581035Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5057424A (en) * | 1973-09-14 | 1975-05-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54107326U (en) | 1979-07-28 |
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