JP2613372B2 - Electromagnetic type electric / acoustic transducer - Google Patents
Electromagnetic type electric / acoustic transducerInfo
- Publication number
- JP2613372B2 JP2613372B2 JP61046353A JP4635386A JP2613372B2 JP 2613372 B2 JP2613372 B2 JP 2613372B2 JP 61046353 A JP61046353 A JP 61046353A JP 4635386 A JP4635386 A JP 4635386A JP 2613372 B2 JP2613372 B2 JP 2613372B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- coil
- electromagnetic type
- acoustic transducer
- type electric
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は各種電子機器に用いる電磁型電気・音響変換
器に関するものである。Description: TECHNICAL FIELD The present invention relates to an electromagnetic type electro-acoustic converter used for various electronic devices.
（従来の技術） 第２図は従来の電磁型電気・音響変換器の全体断面図
である。同図において、１は防水膜、２は共鳴ケース、
３は振動板、４はマグネット、５はコイル、６はプレー
ト、７はターミナル板であり、８はシーリングである。(Prior Art) FIG. 2 is an overall sectional view of a conventional electromagnetic electric / acoustic converter. In the figure, 1 is a waterproof membrane, 2 is a resonance case,
Reference numeral 3 denotes a vibration plate, 4 denotes a magnet, 5 denotes a coil, 6 denotes a plate, 7 denotes a terminal plate, and 8 denotes a ceiling.
第３図は従来の電磁型電気・音響変換器界磁部の組立
断面図である。同図において、センターポールを有する
プレート６に空心コイル５を接着、例えばゴム系接着剤
5aにより結合し、さらにプレート６の背面にはターミナ
ル板７を接着する。一定の乾燥時間ののちにコイル５の
リード線を引き廻わしターミナル板７に配線する。次に
マグネット４を装着して磁気回路を構成していた。FIG. 3 is an assembly sectional view of a conventional electromagnetic type electric / acoustic transducer field section. In the figure, an air-core coil 5 is bonded to a plate 6 having a center pole, for example, a rubber-based adhesive.
5a, and a terminal plate 7 is adhered to the back of the plate 6. After a certain drying time, the lead wire of the coil 5 is routed and wired to the terminal plate 7. Next, the magnet 4 was mounted to form a magnetic circuit.
（発明が解決しようとする問題点） 前記の磁気回路の構成では、プレートとコイルの結合
工程および接着剤の塗布工程があり、原価高になってい
た。さらにマグネット結合部へ接着剤がはみ出した場合
は、マグネットとプレート間に隙間や傾斜が発生し、そ
れにより能率の低下や共振周波数の変動が発生する欠点
があり、また接着剤の塗布量および乾燥時間のバラツキ
によるコイルの脱落が発生する欠点があった。(Problems to be Solved by the Invention) In the configuration of the magnetic circuit described above, there is a step of connecting the plate and the coil and a step of applying an adhesive, resulting in an increase in cost. Furthermore, if the adhesive protrudes into the magnet joint, there is a gap or inclination between the magnet and the plate, resulting in a decrease in efficiency and a change in resonance frequency. There is a disadvantage that the coil may fall off due to a variation in time.
本発明の目的は、従来の欠点を解消し、原価の低減、
品質の向上を図ることのできる電磁型電気・音響変換器
を提供することである。An object of the present invention is to solve the conventional disadvantages, reduce costs,
An object of the present invention is to provide an electromagnetic type electro-acoustic transducer capable of improving quality.
（問題点を解決するための手段） 本発明の電磁型電気・音響変換器は、側面を凹状にし
たセンターポールを有するプレートに励磁用コイルを直
接巻きつけて結合させたものである。(Means for Solving the Problems) The electromagnetic type electro-acoustic converter of the present invention is obtained by directly winding and coupling an exciting coil to a plate having a center pole having a concave side surface.
（作 用） 本発明の構成は、プレートのセンターポールの側面を
切削あるいは横プレスにより凹状にし、そのセンターポ
ールに自己融着型被覆銅線を直接巻きつけ、コイルを形
成するものであるが、このセンターポールの凹形状は切
削あるいはプレス等の手段によって容易に実現できる。(Operation) According to the configuration of the present invention, the side face of the center pole of the plate is formed into a concave shape by cutting or horizontal pressing, and a self-fusion type coated copper wire is directly wound around the center pole to form a coil. The concave shape of the center pole can be easily realized by means such as cutting or pressing.
（実施例） 本発明の一実施例を第１図に基づいて説明する。第１
図は本発明の製造法を示す断面図である。同図におい
て、第２図および第３図に示した従来例と同一部分につ
いては同じ符号を付しその説明を省略する。Embodiment An embodiment of the present invention will be described with reference to FIG. First
The figure is a sectional view showing the manufacturing method of the present invention. In this figure, the same parts as those of the conventional example shown in FIGS. 2 and 3 are denoted by the same reference numerals, and the description thereof will be omitted.
同図において、プレート６のセンターポール6aに切削
あるいはプレスにより凹状部6bを形成し、そのセンター
ポールの側面に自動巻線機により励磁用のコイル５を直
接巻付ける。このように接着剤を使用することなく、プ
レート６とコイル５を結合することができる。In the figure, a concave portion 6b is formed on a center pole 6a of a plate 6 by cutting or pressing, and an exciting coil 5 is directly wound on a side surface of the center pole by an automatic winding machine. As described above, the plate 6 and the coil 5 can be connected without using an adhesive.
（発明の効果） 本発明によれば、接着剤塗布工程、コイル挿入工程お
よび接着剤乾燥工程が削減できるため原価を低減させる
ことができ、さらに接着剤を使用しないためはみ出した
接着剤の除去による能率低下、共振周波数の変動あるい
はコイルの脱落などを防止でき実用上の効果は大なるも
のがある。(Effects of the Invention) According to the present invention, the cost can be reduced because the adhesive application step, the coil insertion step, and the adhesive drying step can be reduced, and furthermore, the adhesive that has not been used can be removed to remove the protruding adhesive. It can prevent a decrease in efficiency, a change in the resonance frequency, a drop of the coil, and the like, so that there are some practical effects.
第１図は本発明の製造法を示すプレートおよびコイルの
断面図、第２図は従来の電磁型電気・音響変換器の断面
図、第３図は同電磁型電気・音響変換器界磁部組立工程
を示す断面図である。 １……防水膜、２……共鳴ケース、３……振動板、４…
…マグネット、５……コイル、６……プレート、6a……
センターポール、6b……凹状部、７……ターミナル板、
８……シーリング。FIG. 1 is a sectional view of a plate and a coil showing a manufacturing method of the present invention, FIG. 2 is a sectional view of a conventional electromagnetic electric-acoustic transducer, and FIG. It is sectional drawing which shows an assembly process. 1 ... waterproof membrane, 2 ... resonance case, 3 ... diaphragm, 4 ...
... magnet, 5 ... coil, 6 ... plate, 6a ...
Center pole, 6b ... concave part, 7 ... terminal board,
8. Sealing.
Claims (1)
プレートに励磁用コイルを直接巻きつけて結合させたこ
とを特徴とする電磁型電気・音響変換器。1. An electromagnetic electro-acoustic converter characterized in that an exciting coil is directly wound and coupled to a plate having a center pole having a concave side surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61046353A JP2613372B2 (en) | 1986-03-05 | 1986-03-05 | Electromagnetic type electric / acoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61046353A JP2613372B2 (en) | 1986-03-05 | 1986-03-05 | Electromagnetic type electric / acoustic transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62204700A JPS62204700A (en) | 1987-09-09 |
| JP2613372B2 true JP2613372B2 (en) | 1997-05-28 |
Family
ID=12744780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61046353A Expired - Lifetime JP2613372B2 (en) | 1986-03-05 | 1986-03-05 | Electromagnetic type electric / acoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2613372B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0790752A4 (en) * | 1995-09-04 | 2004-10-06 | Matsushita Electric Ind Co Ltd | Sounder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567998B2 (en) * | 1972-04-27 | 1981-02-20 | ||
| JPS578072U (en) * | 1980-06-03 | 1982-01-16 | ||
| JPS5832397A (en) * | 1981-08-20 | 1983-02-25 | 松下電工株式会社 | Device for firing discharge lamp |
| JPS6025109U (en) * | 1983-07-26 | 1985-02-20 | 富士通株式会社 | wire bobbin |
| JPS6025110U (en) * | 1983-07-26 | 1985-02-20 | 三菱電機株式会社 | voltage coil winding frame |
| JPS6044880A (en) * | 1983-08-23 | 1985-03-11 | Yokogawa Medical Syst Ltd | Nuclear magnetic resonance imaging apparatus using chirp tracking system |
| JPS60127899A (en) * | 1983-12-14 | 1985-07-08 | Totoku Electric Co Ltd | Manufacture of voice coil |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55116398U (en) * | 1979-02-13 | 1980-08-16 | ||
| JPS567998U (en) * | 1979-06-29 | 1981-01-23 | ||
| JPS5779900U (en) * | 1980-11-04 | 1982-05-17 |
-
1986
- 1986-03-05 JP JP61046353A patent/JP2613372B2/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567998B2 (en) * | 1972-04-27 | 1981-02-20 | ||
| JPS578072U (en) * | 1980-06-03 | 1982-01-16 | ||
| JPS5832397A (en) * | 1981-08-20 | 1983-02-25 | 松下電工株式会社 | Device for firing discharge lamp |
| JPS6025109U (en) * | 1983-07-26 | 1985-02-20 | 富士通株式会社 | wire bobbin |
| JPS6025110U (en) * | 1983-07-26 | 1985-02-20 | 三菱電機株式会社 | voltage coil winding frame |
| JPS6044880A (en) * | 1983-08-23 | 1985-03-11 | Yokogawa Medical Syst Ltd | Nuclear magnetic resonance imaging apparatus using chirp tracking system |
| JPS60127899A (en) * | 1983-12-14 | 1985-07-08 | Totoku Electric Co Ltd | Manufacture of voice coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62204700A (en) | 1987-09-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |