JP2875577B2 - Piezoelectric vibrator - Google Patents
Piezoelectric vibratorInfo
- Publication number
- JP2875577B2 JP2875577B2 JP2071665A JP7166590A JP2875577B2 JP 2875577 B2 JP2875577 B2 JP 2875577B2 JP 2071665 A JP2071665 A JP 2071665A JP 7166590 A JP7166590 A JP 7166590A JP 2875577 B2 JP2875577 B2 JP 2875577B2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric vibrator
- piezoelectric actuator
- spring
- weight
- vibrator
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Mobile Radio Communication Systems (AREA)
Description
【発明の詳細な説明】 イ．発明の目的 〔産業上の利用分野〕 本発明は携帯式の無線呼出し装置に於て、発音によら
ず、機械的な振動を人体に与えて呼出しを行う携帯式の
無線呼出し装置に使用するもので、圧電振動子の超音波
振動を用いたいわゆる圧電式バイブレータであって、特
に積層型圧電アクチュエータを用いた圧電式バイブレー
タに関する。DETAILED DESCRIPTION OF THE INVENTION OBJECT OF THE INVENTION [Industrial Application Field] The present invention relates to a portable wireless paging device which is used in a portable wireless paging device which gives a mechanical vibration to a human body without making a sound and makes a call. The present invention relates to a so-called piezoelectric vibrator using ultrasonic vibration of a piezoelectric vibrator, and more particularly to a piezoelectric vibrator using a laminated piezoelectric actuator.
第２図は従来の携帯式の無線呼出し装置を模式的に示
す図で、電磁式のバイブレータにより構成されており、
小型モータ10に連結してシャフト11が取付けられてお
り、シャフトの先端には偏心質量12を付加して構成して
いる。小型モータ10を回転すると偏心して取り付けてあ
る偏心質量は振巾が大きく回転されるため、人体に機械
的な振動を与える。第２図に示した従来の電磁式バイブ
レータに使用している小型モータは直流のモータであ
り、このため前記小型モータはブラシを使用しており寿
命が短く電磁ノイズが多くまた、電流駆動のため消費電
力が大きいという問題点があった。FIG. 2 is a diagram schematically showing a conventional portable wireless paging device, which is constituted by an electromagnetic vibrator.
A shaft 11 is attached to a small motor 10, and an eccentric mass 12 is added to the tip of the shaft. When the small motor 10 is rotated, the eccentric mass mounted eccentrically has a large amplitude, so that mechanical vibration is given to the human body. The small motor used in the conventional electromagnetic vibrator shown in FIG. 2 is a direct current motor. Therefore, the small motor uses a brush, has a short life, has a large amount of electromagnetic noise, and also has a current drive. There is a problem that power consumption is large.
本発明は、以上に示した従来の電磁式バイブレータの
欠点を除去し、構造が簡単で安価に構成でき、しかも低
い消費電力で、低電圧で駆動して大きな変位が得られる
積層型圧電アクチュエータを利用した圧電式バイブレー
タを提供することにある。The present invention eliminates the drawbacks of the conventional electromagnetic vibrator described above, has a simple structure, can be configured at a low cost, and has a low power consumption and can be driven at a low voltage to obtain a large displacement piezoelectric actuator. An object of the present invention is to provide a piezoelectric vibrator using the same.
ロ．発明の構成 〔課題を解決するための手段〕 本発明は、積層型圧電アクチュエータの変位方向の一
方の端部を支持枠に固定し、他方の端部にばねを介して
おもりを装着し、前記ばねとおもりからなる共振系を構
成し、前記積層型圧電アクチュエータによりこの共振系
の共振周波数付近で駆動することを特徴とする圧電式バ
イブレータとする。B. Configuration of the Invention [Means for Solving the Problems] The present invention is characterized in that one end of the laminated piezoelectric actuator in the displacement direction is fixed to a support frame, and a weight is attached to the other end via a spring, A piezoelectric vibrator is characterized in that a resonance system including a spring and a weight is formed, and the piezoelectric vibrator is driven by the laminated piezoelectric actuator near a resonance frequency of the resonance system.
積層型圧電アクチュェータの変位方向の一方の端部を
支持枠に固定し、他方の端部にばねを介しておもりを装
着し、ばねとおもりの共振周波数で積層型圧電アクチュ
エータを80Hz〜100Hzで駆動して人体に感する振動を得
るものである。One end of the laminated piezoelectric actuator in the displacement direction is fixed to the support frame, and a weight is attached to the other end via a spring, and the laminated piezoelectric actuator is driven at 80 Hz to 100 Hz at the resonance frequency of the spring and the weight. To obtain the vibrations felt by the human body.
以下本発明の圧電式バイブレータについて図面を用い
て説明する。Hereinafter, the piezoelectric vibrator of the present invention will be described with reference to the drawings.
第１図は本発明の圧電式バイブレータである。本発明
の圧電式バイブレータは低い電圧の駆動によっても変位
の大きい積層型圧電アクチュエータを用いるもので、積
層型圧電アクチュエータ20の変位方向の一方の端部を支
持枠21に固定し、他方の端部にばね22を介しておもり23
を装着し、前記ばねとおもりからなる共振系を80Hz〜10
0Hzで共振する様に構成し、前記積層型圧電アクチュエ
ータをこの共振周波数付近で駆動する。FIG. 1 shows a piezoelectric vibrator of the present invention. The piezoelectric vibrator of the present invention uses a laminated piezoelectric actuator having a large displacement even when driven at a low voltage. One end of the laminated piezoelectric actuator 20 in the displacement direction is fixed to the support frame 21 and the other end is fixed. Weight 23 via spring 22
With the resonance system consisting of the spring and the weight 80 Hz to 10
It is configured to resonate at 0 Hz, and the multilayer piezoelectric actuator is driven near this resonance frequency.
ハ．発明の効果 〔発明の効果〕 以上示したように本発明によれば、圧電式バイブレー
タ用振動子として一般的に適用されている積層技術によ
り容易に製造することが可能な積層型圧電アクチュエー
タを用いて圧電式バイブレータを構成し、単に積層型圧
電アクチュエータにばねとおもりを張り付けただけなの
で構造が簡単で、寿命の心配のないバイブレータが得ら
れ、実用的な効果が大きい。C. Effect of the Invention [Effect of the Invention] As described above, according to the present invention, a laminated piezoelectric actuator that can be easily manufactured by a laminated technique generally applied as a vibrator for a piezoelectric vibrator is used. Since a piezoelectric vibrator is formed and a spring and a weight are simply attached to the laminated piezoelectric actuator, a vibrator having a simple structure and a long life can be obtained, which has a large practical effect.
第１図は本発明の積層型圧電アクチュエータを用いた圧
電式バイブレータの一実施例を示す正面図。 第２図は従来の電磁式バイブレータの構成例を示す正面
図。 10……小型モータ、11……シャフト、12……偏心質量、
20……積層型圧電アクチュエータ、21……支持枠、22…
…ばね、23……おもり。FIG. 1 is a front view showing one embodiment of a piezoelectric vibrator using a laminated piezoelectric actuator of the present invention. FIG. 2 is a front view showing a configuration example of a conventional electromagnetic vibrator. 10 ... Small motor, 11 ... Shaft, 12 ... Eccentric mass,
20 …… Laminated piezoelectric actuator, 21… Support frame, 22…
... spring, 23 ... weight.
Claims (1)
方の端部を支持枠に固定し、他方の端部にばねを介して
おもりを装着して前記ばねとおもりからなる共振系を構
成し、前記積層型圧電アクチュエータをばねとおもりと
からなる共振系の共振周波数で駆動することを特徴とす
る圧電式バイブレータ。1. A resonance system comprising a spring and a weight, wherein one end of the laminated piezoelectric actuator in the displacement direction is fixed to a support frame, and a weight is mounted on the other end via a spring. A piezoelectric vibrator, wherein the multilayer piezoelectric actuator is driven at a resonance frequency of a resonance system including a spring and a weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2071665A JP2875577B2 (en) | 1990-03-19 | 1990-03-19 | Piezoelectric vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2071665A JP2875577B2 (en) | 1990-03-19 | 1990-03-19 | Piezoelectric vibrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03270770A JPH03270770A (en) | 1991-12-02 |
| JP2875577B2 true JP2875577B2 (en) | 1999-03-31 |
Family
ID=13467126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2071665A Expired - Fee Related JP2875577B2 (en) | 1990-03-19 | 1990-03-19 | Piezoelectric vibrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2875577B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019127152A (en) * | 2018-01-24 | 2019-08-01 | Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社 | Steering wheel and vibration device |
-
1990
- 1990-03-19 JP JP2071665A patent/JP2875577B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03270770A (en) | 1991-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |