JPH08114459A - Vibrating gyro - Google Patents
Vibrating gyroInfo
- Publication number
- JPH08114459A JPH08114459A JP6276122A JP27612294A JPH08114459A JP H08114459 A JPH08114459 A JP H08114459A JP 6276122 A JP6276122 A JP 6276122A JP 27612294 A JP27612294 A JP 27612294A JP H08114459 A JPH08114459 A JP H08114459A
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- piezoelectric element
- pattern
- printed electrode
- wiring
- 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
Landscapes
- Gyroscopes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、振動ジャイロに関し、
特に振動子に貼り付けた圧電素子への配線構造に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration gyro,
Particularly, it relates to a wiring structure to a piezoelectric element attached to a vibrator.
【０００２】[0002]
【従来の技術】振動ジャイロは、振動子を一定方向に振
動駆動し、角速度が加わった時に発生するコリオリの力
を振動子の変位として検出して角速度を検出するもので
ある。図７に従来の振動ジャイロをケースを外した状態
の斜視図で示す。２は音叉型の振動子、１はこの振動子
２の下部に貼り付けられた駆動用または検出用の圧電素
子である。前記圧電素子１に配線を接続する必要がある
が、従来は、細い金線等のリード線６を用い、このリー
ド線６の先端を圧電素子１の下部の半田箇所５に半田接
合し、このリード線６を圧電素子１のすぐ下の部分８に
おいて振動子２の表面に底辺部まで接着固定し、その
後、外部の棒状端子７へ空中引き回しにより導き、半田
接合していた。2. Description of the Related Art A vibrating gyroscope vibrates an oscillator in a fixed direction and detects the angular velocity by detecting the Coriolis force generated when an angular velocity is applied as displacement of the oscillator. FIG. 7 is a perspective view showing a conventional vibration gyro with the case removed. Reference numeral 2 is a tuning fork type vibrator, and 1 is a driving or detecting piezoelectric element attached to the lower portion of the vibrator 2. Although it is necessary to connect wiring to the piezoelectric element 1, conventionally, a lead wire 6 such as a thin gold wire is used, and the tip of the lead wire 6 is soldered to a soldering point 5 below the piezoelectric element 1, The lead wire 6 was adhesively fixed to the surface of the vibrator 2 at the portion 8 immediately below the piezoelectric element 1 to the bottom portion, and then led to the external rod-shaped terminal 7 by air drawing and soldered.
【０００３】[0003]
【発明が解決しようとする課題】上記のように、細いリ
ード線６を圧電素子１に半田接合し、振動子２の表面に
接着固定し、振動子２から棒状端子７まで空中引き回し
で導く従来の配線方法では、配線作業がきわめて煩雑で
工数がかかるという問題がある。また、細いリード線６
の空中引き回し部分が長く、断線のおそれもある。As described above, the thin lead wire 6 is soldered to the piezoelectric element 1 and fixed to the surface of the vibrator 2 by adhesive bonding, and the lead wire 6 is guided from the vibrator 2 to the rod-shaped terminal 7 in the air. The above wiring method has a problem that the wiring work is extremely complicated and requires a lot of man-hours. Also, thin lead wire 6
There is a risk of wire breakage due to the long length of the air route.
【０００４】本発明は上記従来の欠点を解消するために
なされたもので、圧電素子への配線作業が容易でその工
数を削減することができ、また、断線のおそれのない振
動ジャイロを提供することを目的とする。The present invention has been made in order to solve the above-mentioned conventional drawbacks, and provides a vibrating gyro which can easily perform wiring work to a piezoelectric element, reduce the number of steps, and can prevent disconnection. The purpose is to
【０００５】[0005]
【課題を解決するための手段】上記課題を解決する請求
項１の振動ジャイロは、振動子に貼り付けた圧電素子上
の導体接続部にパターン印刷電極の先端の接続部を直接
接続したことを特徴とする。The vibrating gyroscope according to claim 1 which solves the above-mentioned problems is characterized in that the connecting portion at the tip of the pattern printed electrode is directly connected to the conductor connecting portion on the piezoelectric element attached to the vibrator. Characterize.
【０００６】請求項２の振動ジャイロは、振動子に貼り
付けた圧電素子の近傍における振動子表面にパターン印
刷電極の先端部を接着し、このパターン印刷電極の先端
の接続部と圧電素子上の導体接続部とを短いリード線を
介して接続したことを特徴とする。In the vibrating gyroscope according to a second aspect of the invention, the tip of the pattern printed electrode is adhered to the surface of the vibrator in the vicinity of the piezoelectric element attached to the vibrator, and the connection portion at the tip of the pattern printed electrode and the piezoelectric element are provided. It is characterized in that the conductor connecting portion is connected through a short lead wire.
【０００７】請求項３は、振動子に貼り付けた複数の圧
電素子にそれぞれ接続される複数のパターン印刷電極
を、振動子の周方向に延びて各パターン印刷電極間をつ
なぐ帯状基板部と一体に形成し、前記帯状基板部を振動
子の表面に接着したことを特徴とする。なお、この場合
の圧電素子とパターン印刷電極との接続手段は、請求項
１のように直接接続する手段、または請求項２のように
短いリード線を介して接続する手段のいずれでもよい。According to a third aspect of the present invention, a plurality of pattern printed electrodes, which are respectively connected to a plurality of piezoelectric elements attached to the vibrator, are integrated with a strip-shaped substrate portion that extends in the circumferential direction of the vibrator and connects the pattern printed electrodes. And the strip-shaped substrate portion is adhered to the surface of the vibrator. In this case, the connecting means between the piezoelectric element and the pattern printed electrode may be either a direct connecting means as in claim 1 or a connecting means via a short lead wire as in claim 2.
【０００８】[0008]
【作用】請求項１または２の振動ジャイロにおいて、パ
ターン印刷電極を圧電素子に直接または間接に接続する
際、空中引き回し作業を必要としない。したがって、圧
電素子への配線作業は容易である。In the vibrating gyroscope according to the first or second aspect of the present invention, when the pattern printed electrode is directly or indirectly connected to the piezoelectric element, there is no need to carry out work in the air. Therefore, the wiring work to the piezoelectric element is easy.
【０００９】請求項３の振動ジャイロにおいて、複数の
圧電素子への配線がまとめて行われる。したがって、配
線作業が一層容易であるとともに、複数の圧電素子への
配線の態様のバラツキは少なくなる。In the vibrating gyroscope according to the third aspect, wiring to a plurality of piezoelectric elements is collectively performed. Therefore, the wiring work is further facilitated, and the variation in the mode of wiring to the plurality of piezoelectric elements is reduced.
【００１０】[0010]
【実施例】図１に請求項１の振動ジャイロ１１の一実施
例をケースを外した状態の斜視図で示し、図２にその要
部を拡大して示す。同図において、２は音叉型の振動
子、１はこの振動子２の下部に貼り付けられた駆動用ま
たは検出用の圧電素子であり、圧電素子１の下部に半田
箇所（導体接続部）５が配置されている。本発明では、
圧電素子１への配線として、導体パターン３ａを樹脂の
基板３ｂの表面に印刷してなるパターン印刷電極３を用
いる。この実施例では、パターン印刷電極３の先端部近
傍が振動子２にも圧電素子１にも密着するように先端部
近傍をほぼ圧電素子１の厚み分だけ段付け折曲し、そし
て先端部に半田箇所（接続部：この場合は導体パターン
部分３ａにあけた穴）４を配置し、このパターン印刷電
極３を半田箇所４にて圧電素子１の前記半田箇所５に半
田接合している。なお、パターン印刷電極３の振動子２
に接触する部分（圧電素子１のすぐ下の部分）は接着剤
で接着するとよい。なお、図示例のパターン印刷電極３
は振動ジャイロ１１のベース（図示略）から直接立ち上
げている。ただし、側方に存在する棒状端子に接続して
もよい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing an embodiment of a vibrating gyroscope 11 according to claim 1 with a case removed, and FIG. In the figure, 2 is a tuning-fork type vibrator, 1 is a driving or detecting piezoelectric element attached to the lower part of the vibrator 2, and a soldering part (conductor connection part) 5 is provided under the piezoelectric element 1. Are arranged. In the present invention,
As the wiring to the piezoelectric element 1, the pattern printed electrode 3 formed by printing the conductor pattern 3a on the surface of the resin substrate 3b is used. In this embodiment, the vicinity of the tip of the pattern-printed electrode 3 is stepped and bent by approximately the thickness of the piezoelectric element 1 so that the vicinity of the tip is in close contact with both the vibrator 2 and the piezoelectric element 1. Solder portions (connection portions: holes formed in the conductor pattern portion 3a in this case) 4 are arranged, and the pattern printed electrodes 3 are soldered to the solder portions 5 of the piezoelectric element 1 at the solder portions 4. The vibrator 2 of the pattern printed electrode 3
It is advisable to adhere the portion (the portion immediately below the piezoelectric element 1) that comes into contact with the adhesive with an adhesive. The pattern printed electrode 3 in the illustrated example
Stands up directly from the base (not shown) of the vibrating gyro 11. However, you may connect to the rod-shaped terminal which exists in the side.
【００１１】上記の振動ジャイロ１１によれば、パター
ン印刷電極３を用いたことにより、図７の従来例のよう
な細いリード線６を半田接合し空中を引き回す作業が不
要となり、圧電素子１への配線作業がきわめて容易にな
る。また、空中引き回しのリード線のように、配線（パ
ターン印刷電極３）が振動子２の振動により大きく振動
することは少ない。また、外部からの不要な振動を振動
子２に伝搬させることも少ない。また、断線のおそれも
少ない。According to the vibrating gyroscope 11 described above, since the pattern printed electrode 3 is used, it is not necessary to solder the thin lead wire 6 as in the conventional example shown in FIG. Wiring work is extremely easy. Further, unlike a lead wire that is routed in the air, the wiring (pattern printed electrode 3) is unlikely to vibrate significantly due to the vibration of the vibrator 2. Further, it is rare that unnecessary vibration from the outside is propagated to the vibrator 2. Also, there is little risk of disconnection.
【００１２】図３に請求項２の振動ジャイロ２１の一実
施例をケースを外した状態の斜視図で示し、図４にその
要部を拡大して示す。この振動ジャイロ２１は、パター
ン印刷電極３の先端部を振動子２の表面の圧電素子１の
すぐ下の部分に接着し、このパターン印刷電極３の先端
の半田箇所（接続部：この場合は導体パターン３ａ自
体）４と圧電素子１の半田箇所５との間をそれぞれに半
田接合される短いリード線９を介して接続している。こ
の振動ジャイロ２１においても、上述の振動ジャイロ１
１と同様な効果が得られる。FIG. 3 is a perspective view showing a vibrating gyroscope 21 according to a second embodiment of the present invention with the case removed, and FIG. The vibrating gyroscope 21 adheres the tip of the pattern printed electrode 3 to a portion of the surface of the vibrator 2 immediately below the piezoelectric element 1, and solders the tip of the pattern printed electrode 3 (connecting portion: conductor in this case). The pattern 3a itself) 4 and the solder portion 5 of the piezoelectric element 1 are connected via short lead wires 9 which are soldered to each other. In this vibrating gyro 21, the vibrating gyro 1 described above is also used.
The same effect as 1 can be obtained.
【００１３】図５に請求項３の振動ジャイロ３１の一実
施例をケースを外した状態の斜視図で示し、図６にその
要部を拡大して示す。この振動ジャイロ３１は、振動子
２に貼り付けた４つの圧電素子１にそれぞれ接続される
４本のパターン印刷電極３を、振動子２の周方向に延び
て各パターン印刷電極３間をつなぐ帯状基板部３ｃと一
体に形成し、前記帯状基板部３ｃを振動子２の表面に接
着したものである。図示例では、帯状基板部３ｃが振動
子２の周方向全体を囲む環状をなしているが、途中で切
り離されて両端末のあるものでもよい。また、図示例で
は、パターン印刷電極３の先端の半田箇所４を圧電素子
１の半田箇所５に直接半田接合しているが、図３、図４
のように、パターン印刷電極３の先端の半田箇所４と圧
電素子１の半田箇所５とを短いリード線９を介して接続
することも可能である。また、帯状基板部３ｃはその全
体でなく一部を振動子２に接着することも可能である。FIG. 5 is a perspective view showing an embodiment of the vibrating gyroscope 31 according to claim 3 with the case removed, and FIG. 6 shows an enlarged main part thereof. This vibrating gyroscope 31 is a strip-shaped pattern that connects four pattern printed electrodes 3 connected to four piezoelectric elements 1 attached to the vibrator 2 to each other by extending in the circumferential direction of the vibrator 2 and connecting the pattern printed electrodes 3 to each other. It is formed integrally with the substrate portion 3c, and the strip-shaped substrate portion 3c is bonded to the surface of the vibrator 2. In the illustrated example, the strip-shaped substrate portion 3c has an annular shape that surrounds the entire circumference of the vibrator 2, but it may be separated in the middle to have both terminals. Further, in the illustrated example, the solder portion 4 at the tip of the pattern printed electrode 3 is directly soldered to the solder portion 5 of the piezoelectric element 1, but FIGS.
As described above, it is possible to connect the solder portion 4 at the tip of the pattern printed electrode 3 and the solder portion 5 of the piezoelectric element 1 via the short lead wire 9. Further, the strip-shaped substrate portion 3c can be adhered to the vibrator 2 not entirely but partially.
【００１４】上記の振動ジャイロ３１によれば、帯状基
板部３ｃを振動子２に巻き付けて固定すると、各パター
ン印刷電極３の位置決め固定がまとめて行われるので、
パターン印刷電極３の位置決め固定作業が容易であり、
圧電素子１への配線作業がさらに容易かつ能率的にな
る。また、各圧電素子１へのパターン印刷電極３の配線
態様が均一になり、個々の配線態様のバラツキを少なく
することができるので、振動ジャイロの性能向上のため
に好ましい。According to the vibrating gyroscope 31 described above, when the strip-shaped substrate portion 3c is wound around the vibrator 2 and fixed, the pattern-printed electrodes 3 are collectively positioned and fixed.
Positioning and fixing work of the pattern printed electrode 3 is easy,
Wiring work to the piezoelectric element 1 becomes easier and more efficient. Further, the wiring pattern of the pattern-printed electrodes 3 to each piezoelectric element 1 becomes uniform, and variations in individual wiring patterns can be reduced, which is preferable for improving the performance of the vibration gyro.
【００１５】なお、上述の各実施例では、音叉型振動子
を持つ振動ジャイロについて説明したが、Ｈ型振動子や
その他の形式の振動子を持つ振動ジャイロにも適用でき
る。また、パターン印刷電極３の数は当然、実施例の４
本の場合に限定されず、振動子に設ける圧電素子の数に
応じて設ける。また、パターン印刷電極の接続部と圧電
素子の導体接続部との接続方法は、実施例の半田接合に
限らず、例えば導電性接着剤などによる接続でもよい。
さらに、短いリード線の接合の場合には、ワイヤボンデ
ィングで行ってもよい。In each of the above-described embodiments, the vibration gyro having the tuning fork type vibrator has been described, but the present invention is also applicable to the vibration gyro having the H type vibrator and other types of vibrators. Further, the number of the pattern printed electrodes 3 is naturally 4 in the embodiment.
The present invention is not limited to the case of a book, and the number of piezoelectric elements provided in the vibrator is set. Further, the method of connecting the connection portion of the pattern printed electrode and the conductor connection portion of the piezoelectric element is not limited to the solder joint of the embodiment, but may be a connection using a conductive adhesive or the like.
Furthermore, in the case of joining short lead wires, wire bonding may be used.
【００１６】[0016]
【発明の効果】本発明の振動ジャイロによれば、パター
ン印刷電極を直接または短いリード線を介して振動子上
の圧電素子に接続する構成なので、リード線を空中引き
回しする従来方法と比べて配線作業が簡略化され、製作
時の作業工数が削減される。また、空中引き回しのリー
ド線と異なり、断線のおそれは少ない。According to the vibrating gyroscope of the present invention, since the pattern printed electrode is connected to the piezoelectric element on the vibrator directly or through a short lead wire, the lead wire is wired in comparison with the conventional method. The work is simplified and the work man-hours at the time of production are reduced. Also, unlike lead wires that are routed in the air, there is little risk of disconnection.
【００１７】請求項３によれば、圧電素子への配線作業
が一層簡略化される。また、複数の圧電素子への配線の
態様のバラツキを抑えることができ、振動ジャイロの性
能向上のために好ましい。また、個々の振動ジャイロの
特性のバラツキを少なくする効果もある。According to the third aspect, the wiring work to the piezoelectric element is further simplified. In addition, it is possible to suppress variations in the form of wiring to the plurality of piezoelectric elements, which is preferable for improving the performance of the vibration gyro. In addition, there is also an effect of reducing variations in characteristics of individual vibration gyros.
【図１】請求項１の振動ジャイロの一実施例を示す斜視
図である。FIG. 1 is a perspective view showing an embodiment of a vibrating gyro according to claim 1.
【図２】図１の要部の拡大図である。FIG. 2 is an enlarged view of a main part of FIG.
【図３】請求項２の振動ジャイロの一実施例を示す斜視
図である。FIG. 3 is a perspective view showing an embodiment of the vibrating gyroscope of claim 2;
【図４】図３の要部の拡大図である。FIG. 4 is an enlarged view of a main part of FIG.
【図５】請求項３の振動ジャイロの一実施例を示す斜視
図である。FIG. 5 is a perspective view showing an embodiment of the vibrating gyroscope of claim 3;
【図６】図５の要部の拡大図である。6 is an enlarged view of a main part of FIG.
【図７】従来の振動ジャイロの斜視図である。FIG. 7 is a perspective view of a conventional vibrating gyro.
１ 圧電素子 ２ 振動子 ３ パターン印刷電極 ３ａ 導体パターン ３ｂ 基板 ３ｃ 帯状基板部 ４ パターン印刷電極の半田箇所（接続部） ５ 圧電素子の半田箇所（導体接続部） ９ リード線 DESCRIPTION OF SYMBOLS 1 Piezoelectric element 2 Vibrator 3 Pattern printed electrode 3a Conductor pattern 3b Substrate 3c Strip board part 4 Solder part (connecting part) of pattern print electrode 5 Solder part of piezoelectric element (conductor connecting part) 9 Lead wire
Claims (3)
続部にパターン印刷電極の先端の接続部を直接接続した
ことを特徴とする振動ジャイロ。1. A vibrating gyroscope characterized in that a connecting portion at a tip of a pattern printed electrode is directly connected to a conductor connecting portion on a piezoelectric element attached to a vibrator.
ける振動子表面にパターン印刷電極の先端部を接着し、
このパターン印刷電極の先端の接続部と圧電素子上の導
体接続部とを短いリード線を介して接続したことを特徴
とする振動ジャイロ。2. A tip of a pattern-printed electrode is adhered to the surface of the vibrator in the vicinity of the piezoelectric element attached to the vibrator,
A vibrating gyroscope characterized in that a connecting portion at a tip of the pattern printed electrode and a conductor connecting portion on a piezoelectric element are connected via a short lead wire.
れぞれ接続される複数のパターン印刷電極を、振動子の
周方向に延びて各パターン印刷電極間をつなぐ帯状基板
部と一体に形成し、前記帯状基板部を振動子の表面に接
着したことを特徴とする振動ジャイロ。3. A plurality of pattern-printed electrodes, which are respectively connected to a plurality of piezoelectric elements attached to a vibrator, are integrally formed with a strip-shaped substrate portion which extends in the circumferential direction of the vibrator and connects between the pattern-printed electrodes. A vibrating gyro, wherein the strip-shaped substrate portion is adhered to a surface of a vibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6276122A JPH08114459A (en) | 1994-10-14 | 1994-10-14 | Vibrating gyro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6276122A JPH08114459A (en) | 1994-10-14 | 1994-10-14 | Vibrating gyro |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08114459A true JPH08114459A (en) | 1996-05-07 |
Family
ID=17565103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6276122A Pending JPH08114459A (en) | 1994-10-14 | 1994-10-14 | Vibrating gyro |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08114459A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2371624A (en) * | 2000-09-19 | 2002-07-31 | Sagem | Sensor with a three-dimensional interconnection circuit. |
-
1994
- 1994-10-14 JP JP6276122A patent/JPH08114459A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2371624A (en) * | 2000-09-19 | 2002-07-31 | Sagem | Sensor with a three-dimensional interconnection circuit. |
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