JPS6025117Y2 - sound device - Google Patents
sound deviceInfo
- Publication number
- JPS6025117Y2 JPS6025117Y2 JP6604579U JP6604579U JPS6025117Y2 JP S6025117 Y2 JPS6025117 Y2 JP S6025117Y2 JP 6604579 U JP6604579 U JP 6604579U JP 6604579 U JP6604579 U JP 6604579U JP S6025117 Y2 JPS6025117 Y2 JP S6025117Y2
- Authority
- JP
- Japan
- Prior art keywords
- horn
- coil
- sound device
- nozzle plate
- diaphragm
- 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
- Electromechanical Clocks (AREA)
Description
【考案の詳細な説明】
本考案は目覚時計のブザーなどとして使用される発音装
置に関するものである。[Detailed Description of the Invention] The present invention relates to a sounding device used as a buzzer for an alarm clock, etc.
従来よりブザーのホーンには、その上面中央部に通気孔
が穿設されており、振動板をコイルの励磁によって振動
させ、ホーンの空洞効果によって音が増幅して発音する
ようになっている。Conventionally, the horn of a buzzer has a ventilation hole drilled in the center of its upper surface, and a diaphragm is vibrated by excitation of a coil, and the sound is amplified and produced by the hollow effect of the horn.
ところが励磁コイルに入るある特定の共振周波数に対し
てはホーンはよく共鳴するが、このコイルに入る信号の
周波数が変わると急にホーンの共振先鋭度が低下して出
力が悪くなる欠点がある。However, although the horn resonates well at a certain resonant frequency that enters the excitation coil, if the frequency of the signal that enters the coil changes, the sharpness of the resonance of the horn suddenly decreases, resulting in poor output.
そこで本考案は広い周波数帯に対しても、一定のレベル
以上の共振先鋭度を保ち得るようにして広い応答帯域を
得ることを目的とするものである。Therefore, the present invention aims to obtain a wide response band by maintaining resonance sharpness above a certain level even in a wide frequency band.
図面を参照して本考案の実施例を説明すると、ホーン１
の下端開口部内にはヨーク２が圧入してあり、このヨー
クの上面にはコイル３を巻回したボビン４が嵌合してお
り、このボビンの中心中空部には調整ネジ５がヨークに
上下動可能に螺入している。An embodiment of the present invention will be described with reference to the drawings.
A yoke 2 is press-fitted into the lower end opening, and a bobbin 4 on which a coil 3 is wound is fitted onto the upper surface of this yoke.An adjustment screw 5 is installed in the center hollow part of this bobbin to adjust the yoke up and down. It is screwed in so that it can move.
そしてコイル３の引出し端子は回転基板６の所定場所に
連結している。The lead terminal of the coil 3 is connected to a predetermined location on the rotating board 6.
そしてコイル３の外周側方には磁石７が位置し、この磁
石上面には振動板８が取付けてあり、この振動板の上面
中央部には質量９が熔接しである。A magnet 7 is located on the outer circumferential side of the coil 3, a diaphragm 8 is attached to the upper surface of the magnet, and a mass 9 is welded to the center of the upper surface of the diaphragm.
ホーン１の上端開口部には、ポリエステルフィルム、紙
などの弾性材のノズル板１０が嵌合している。A nozzle plate 10 made of an elastic material such as polyester film or paper is fitted into the upper opening of the horn 1 .
ノズル板１０は強度的には断面３角形のリング状のもの
が望ましい。In terms of strength, the nozzle plate 10 is preferably ring-shaped with a triangular cross section.
なおホーン１の外周中央部には取付孔１１，１１が設け
である。Note that mounting holes 11, 11 are provided at the center of the outer circumference of the horn 1.
以上の構成を有する本考案は、コイルの共振周板数によ
って振動板は励磁され、ホーンによって増幅されて発音
されるが、このコイルに入れる信号の共振周波数が変動
しても、ノズル板によってホーンの共振先鋭度が急激に
低下することなく、追従性の範囲が広い。In the present invention having the above configuration, the diaphragm is excited by the number of resonance plates of the coil, and is amplified by the horn to produce sound. The resonance sharpness does not suddenly decrease, and the followability range is wide.
そのためコイルに供給する入力の電気的信号の周波数変
動が大きいものや、好みに応じて低い周波数から高い周
波数まで幅広く出したいものに、それぞれの条件に応じ
て適用できると共に、ソフトな音質を得ることができる
効果を有するものである。Therefore, it can be applied according to each condition, such as when the frequency fluctuation of the input electrical signal supplied to the coil is large, or when you want to output a wide range of frequencies from low to high according to your preference, and you can obtain a soft sound quality. This has the effect of making it possible.
図面は本考案の実施例を示す断面図である。 １・・・・・・ホーン、１０・・・・・・ノズル板。 The drawing is a sectional view showing an embodiment of the present invention. 1... Horn, 10... Nozzle plate.
Claims (1)
、上記ホーンの開口部を音圧によって弾性的に変形可能
なノズル板にて猛威したことを特徴とする発音装置。A sounding device equipped with a Helmholtz resonance horn, characterized in that the opening of the horn is formed by a nozzle plate that can be elastically deformed by sound pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6604579U JPS6025117Y2 (en) | 1979-05-17 | 1979-05-17 | sound device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6604579U JPS6025117Y2 (en) | 1979-05-17 | 1979-05-17 | sound device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55167299U JPS55167299U (en) | 1980-12-01 |
| JPS6025117Y2 true JPS6025117Y2 (en) | 1985-07-27 |
Family
ID=29300023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6604579U Expired JPS6025117Y2 (en) | 1979-05-17 | 1979-05-17 | sound device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6025117Y2 (en) |
-
1979
- 1979-05-17 JP JP6604579U patent/JPS6025117Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55167299U (en) | 1980-12-01 |
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