JPS6258175B2 - - Google Patents
Info
- Publication number
- JPS6258175B2 JPS6258175B2 JP14299379A JP14299379A JPS6258175B2 JP S6258175 B2 JPS6258175 B2 JP S6258175B2 JP 14299379 A JP14299379 A JP 14299379A JP 14299379 A JP14299379 A JP 14299379A JP S6258175 B2 JPS6258175 B2 JP S6258175B2
- Authority
- JP
- Japan
- Prior art keywords
- tuning fork
- crystal resonator
- shaped support
- type crystal
- fork type
- 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
- 239000013078 crystal Substances 0.000 claims description 46
- 238000006073 displacement reaction Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/21—Crystal tuning forks
- H03H9/215—Crystal tuning forks consisting of quartz
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
【発明の詳細な説明】
本発明は音叉型水晶振動子、特に結合音叉型水
晶振動子に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tuning fork type crystal resonator, and particularly to a coupled tuning fork type crystal resonator.
結合音叉型水晶振動子とは、音叉型水晶振動子
に存在する２つの異なる振動モードを結合させる
ことにより、前記２つの振動モードのうち一方の
振動モードの共振周波数温度特性を改善、即ち、
温度変化による共振周波数変化を少なくしたもの
である。 A coupled tuning fork type crystal resonator improves the resonant frequency temperature characteristics of one of the two vibration modes by combining two different vibration modes existing in the tuning fork type crystal resonator, that is,
This reduces changes in resonance frequency due to temperature changes.
結合音叉型水晶振動子とは、音叉型水晶振動子
に存在する２つの異なる振動モードを結合させる
ことにより、前記２つの振動モードのうち一方の
振動モードの共振周波数温度特性を改善、即ち、
温度変化による共振周波数変化を少なくしたもの
である。 A coupled tuning fork type crystal resonator improves the resonant frequency temperature characteristics of one of the two vibration modes by combining two different vibration modes existing in the tuning fork type crystal resonator, that is,
This reduces changes in resonance frequency due to temperature changes.
結合させる２つの振動モードとしては、幾つか
あるが、本発明に係わる結合音叉型水晶振動子で
は、屈曲振動と捩り振動を用いる。この２つの振
動モードを結合させたとき屈曲振動の共振周波数
温度特性が改善される。この振動子を電子時計に
用いることにより時間精度を大幅に向上させるこ
とができる。屈曲振動と捩り振動の結合を用いた
結合音叉型水晶振動子については、特願昭53−
23903、特願昭53−149499号、特願昭53−149500
号に詳しく述べてある。 Although there are several vibration modes to be combined, the combined tuning fork type crystal resonator according to the present invention uses bending vibration and torsional vibration. When these two vibration modes are combined, the resonance frequency temperature characteristics of bending vibration are improved. By using this vibrator in an electronic watch, time accuracy can be greatly improved. Regarding a coupled tuning fork type crystal oscillator using the combination of bending vibration and torsional vibration, a patent application filed in 1973-
23903, Patent Application No. 1983-149499, Patent Application No. 1983-149500
Details are given in the issue.
屈曲振動として基本振動を用いる場合と、高調
波を用いる場合があるが、電子時計の時間精度向
上という点からは、高調波を用いる方がよい。こ
れは、基本振動よりも高調波の方が振動のＱ値が
一般的には高いため、共振周波数の経時変化が少
ないからである。また、重力方向に対する音叉型
水晶振動子の向きにより、共振周波数が僅かにず
れる（これを以下、姿勢差と呼ぶ）が、基本振動
よりも高調波の方が、この量が少ないからであ
る。 There are cases where a fundamental vibration is used as the bending vibration, and there are cases where a harmonic wave is used, but it is better to use a harmonic wave from the point of view of improving the time accuracy of an electronic watch. This is because harmonics generally have a higher vibration Q value than fundamental vibrations, and therefore the resonant frequency changes less over time. Further, depending on the orientation of the tuning fork type crystal resonator with respect to the direction of gravity, the resonant frequency is slightly shifted (hereinafter referred to as a posture difference), but this is because this amount is smaller for harmonics than for fundamental vibrations.
高調波は、このような２つの利点を有するが、
共振周波数が高くなるため、高調波の中でも最低
次の高調波（以下、第一高調波と呼ぶ）を用いる
ことが多い。これは電子時計に結合音叉型水晶振
動子を用いるとき、消費エネルギーの大幅な増大
を避けるためである。以下、第一高調波と捩り振
動の結合を用いた結合音叉型水晶振動子について
述べる。 Harmonics have these two advantages, but
Since the resonant frequency becomes high, the lowest harmonic (hereinafter referred to as the first harmonic) is often used among the harmonics. This is to avoid a significant increase in energy consumption when using a coupled tuning fork type crystal oscillator in an electronic watch. A coupled tuning fork type crystal resonator using coupling of the first harmonic and torsional vibration will be described below.
第１図は、従来の結合音叉型水晶振動子の外観
図である。１は結合音叉型水晶振動子本体、２は
結合音叉型水晶振動子１を支持し、電極と導通を
とるためのリード、３は半田、４はプラグであ
る。また、本図に付されたＸ軸、Y′軸、Z′軸は、
それぞれ水晶原石の電気軸、電気軸まわりに回転
された機械軸、電気軸まわりに回転された光軸を
表わし、結合音叉型水晶振動子１が水晶原石から
切断されるときの方向を示している。 FIG. 1 is an external view of a conventional coupled tuning fork type crystal resonator. 1 is a coupled tuning fork type crystal resonator main body, 2 is a lead for supporting the coupled tuning fork type crystal resonator 1 and establishing electrical conduction with the electrodes, 3 is solder, and 4 is a plug. In addition, the X-axis, Y'-axis, and Z'-axis attached to this figure are
They respectively represent the electric axis of the raw crystal, the mechanical axis rotated around the electric axis, and the optical axis rotated around the electric axis, and indicate the direction in which the coupled tuning fork type crystal resonator 1 is cut from the raw crystal. .
一般に屈曲振動の第一高調波のＱ値は、基本振
動のＱ値よりも高いのであるが、結合音叉型水晶
振動子においては基部の変位が複雑であるため、
第１図の如き支持方法では、第一高調波本来の高
いＱ値を得ることが困難であつた。その結果、共
振周波数の経時変化が少ないという第一高調波本
来の利点を得ることが困難であつた。この主な原
因は、結合音叉型水晶振動子の基部変位が大きい
ことによる。基部におけるＸ軸方向、Y′軸方
向、Z′軸方向の変位をそれぞれ、ＵX，ＵY′，Ｕ
Z′とする。結合音叉型水晶振動子では、特にＵ
Y′ＵZ′，が大きく、ＵXよりも２桁〜３桁も大き
い値を持つている。このＵY′，ＵZ′の大きな基部
の部分を第１図の如き２本のリード２で広い面積
に渡つて支持するため、振動のエネルギーがその
部分で損失し、Ｑ値が上がらないのである。 Generally, the Q value of the first harmonic of bending vibration is higher than the Q value of the fundamental vibration, but in a coupled tuning fork type crystal resonator, the displacement of the base is complicated, so
With the support method shown in FIG. 1, it is difficult to obtain the high Q value inherent to the first harmonic. As a result, it has been difficult to obtain the inherent advantage of the first harmonic, which is that the resonance frequency changes little over time. The main reason for this is that the base displacement of the coupled tuning fork crystal resonator is large. The displacements in the X-axis direction, Y'-axis direction, and Z'-axis direction at the base are respectively U X , U Y ', U
Let it be Z ′. In coupled tuning fork type crystal resonators, especially U
Y ′U Z ′, is large and has a value that is two to three orders of magnitude larger than U X . Since the large base portions of U Y ′ and U Z ′ are supported over a wide area by two leads 2 as shown in Figure 1, the vibration energy is lost in those parts and the Q value does not increase. be.
また、結合音叉型水晶振動子本体１の底部から
プラグ４までの距離が短いため、振動子の振動が
減衰せず、そのままプラグに達するため、プラグ
で振動エネルギーが損失して、Ｑ値が上がらない
のである。 In addition, because the distance from the bottom of the coupled tuning fork type crystal resonator body 1 to the plug 4 is short, the vibration of the resonator is not attenuated and reaches the plug as it is, so vibration energy is lost at the plug and the Q value increases. There isn't.
本発明はかかる欠点を除去したもので、結合音
叉型水晶振動子のＱ値を向上させることが目的で
ある。 The present invention eliminates such drawbacks and aims to improve the Q value of a coupled tuning fork type crystal resonator.
第２図は、本発明の一実施例の斜視図である。
５は結合音叉型水晶振動子本体、６は前記結合音
叉型水晶振動子５を支持するためのＵ字形支持材
６である。このＵ字形支持材６はリード１８と一
体に形成されている。７はＵ字形支持材６を接着
し、導通をとるための半田である。 FIG. 2 is a perspective view of one embodiment of the invention.
5 is a coupled tuning fork type crystal resonator main body, and 6 is a U-shaped support member 6 for supporting the coupled tuning fork type crystal resonator 5. This U-shaped support member 6 is formed integrally with the lead 18. 7 is solder for bonding the U-shaped support member 6 and establishing electrical conductivity.
支持構造について詳述すると、Ｕ字形支持材６
はマウント部１０から伸長して、前記結合音叉型
水晶振動子５の前記基部１７面と平行で且つ前記
結合音叉型水晶振動子５の長手方向と直角方向に
湾曲されている。６ａはＵ字状湾曲部である。前
記Ｕ字形支持材６の他他から伸長した植設部６ｂ
がプラグ４に植設されている。 To explain the support structure in detail, the U-shaped support member 6
extends from the mount portion 10 and is curved parallel to the base 17 surface of the coupled tuning fork crystal resonator 5 and perpendicular to the longitudinal direction of the coupled tuning fork crystal resonator 5 . 6a is a U-shaped curved portion. A planting part 6b extending from the other part of the U-shaped support member 6
is installed in plug 4.
さらに、前記Ｕ字状湾曲部６ａは前記結合音叉
型水晶振動子５の底部と前記プラグ４間の空間に
配置されている。これは前記Ｕ字状湾曲部６ａが
前記結合音叉型水晶振動子５の底部等に触れてし
まうと、振動エネルギーが損失し、安定した振動
を得ることができない。 Furthermore, the U-shaped curved portion 6a is arranged in a space between the bottom of the coupled tuning fork type crystal resonator 5 and the plug 4. This is because if the U-shaped curved portion 6a touches the bottom of the coupled tuning fork crystal resonator 5, vibration energy is lost and stable vibration cannot be obtained.
以下、本発明の原理を図を用いて説明する。 Hereinafter, the principle of the present invention will be explained using figures.
第３図は第２図の結合音叉型水晶振動子本体５
の外形を示し、本図内の太線で描かれた部分の変
位ＵX，ＵY′，ＵZ′を第４図、第５図、第６図に
示す。第３図の太線の左端位置を−１、中央位置
を０、右端位置を１とする。 Figure 3 shows the coupled tuning fork type crystal resonator main body 5 of Figure 2.
The displacements U X , U Y ', and U Z ' of the portions drawn with thick lines in this figure are shown in FIGS. 4, 5, and 6. Assume that the left end position of the thick line in FIG. 3 is -1, the center position is 0, and the right end position is 1.
第４図、第５図、第６図の横軸は第３図の太線
に対応し、−１，０，１の意味は第３図の意味と
同様である。また、第４図、第５図、第６図の縦
軸は、−１〜１の部分におけるＵX，ＵY′，ＵZ′で
ある。破線は負の値、実線は正の値である。縦軸
の数値は音叉腕先端の最大変位を＋１としたとき
の値を示している。 The horizontal axes in FIGS. 4, 5, and 6 correspond to the thick lines in FIG. 3, and the meanings of -1, 0, and 1 are the same as in FIG. 3. Further, the vertical axes in FIGS. 4, 5, and 6 are U.sub.X , U.sub.Y ', and U.sub.Z ' in the range from -1 to 1. Dashed lines are negative values and solid lines are positive values. The numerical value on the vertical axis indicates the value when the maximum displacement of the tip of the tuning fork arm is +1.
第４図、第５図、第６図に示す如く、−１〜１
の部分におけるＵXは10-5の桁であるが、ＵY′，
ＵZ′はＵX′に比べて、２桁も大きい。従つて、第
３図の如き形状を有する結合音叉型水晶振動子を
第１図に示す如き支持方法で支持すると、基部に
おけるＵY′，ＵZ′が大きいため、エネルギーが損
失し、Ｑ値が向上しない。この基部における変位
ＵY′，ＵZ′による振動エネルギーの損失を最小に
するため第２図に示す如く、Ｕ字形支持材６で振
動子を支持するのである。 As shown in Figures 4, 5, and 6, -1 to 1
U X in the part is 10 -5 digit, but U Y ′,
U Z ′ is two orders of magnitude larger than U X ′. Therefore, if a coupled tuning fork type crystal resonator having a shape as shown in FIG . 3 is supported by the support method shown in FIG. does not improve. In order to minimize the loss of vibration energy due to the displacements U Y ' and U Z ' at the base, the vibrator is supported by a U-shaped support member 6, as shown in FIG.
第７図はＵ字形支持材のやや詳細な図である。 FIG. 7 is a slightly more detailed view of the U-shaped support.
８はＵ字形支持材、９はＵ字形支持材の固定
端、破線で丸く囲んだ部分１０は振動子を接着す
るマウント部分である。 8 is a U-shaped supporting member, 9 is a fixed end of the U-shaped supporting member, and a portion 10 surrounded by a broken line is a mount portion to which a vibrator is bonded.
第８図は、マウント部分１０に＋Y′方向の変
位を与えたときのＵ字形支持材の変形の様子を極
端に描いたものである。破線で描いた１１は変形
前のＵ字形支持材、実線で描いた１２は変形後の
Ｕ字形支持材である。点Ａ，点Ｂは変形前のＵ字
形支持材上の点で、点A′，点B′は点Ａ，点Ｂの
変形後の点の位置を示す。ＵA，ＵBは点Ａ，点Ｂ
の変形に判う変位である。本図よりマウント部分
１０に＋Y′方向の変位を与える、Ｕ字形支持材
の固定端９に近づくにつれ、Ｕ字形支持材の
Y′方向変位は小さくなることがわかる。なぜな
ら、
ＵA＞ＵB となつていることからわかる。逆
に、マウント部分１０に−Y′方向の変位を与え
ても同様である。また、Ｕ字形支持材のマウント
部分１０から固定端９までのＵ字形支持材の全長
が長いため、Y′方向の変位の減衰は滑かであ
る。 FIG. 8 is an extreme depiction of the deformation of the U-shaped support member when the mount portion 10 is displaced in the +Y' direction. 11 drawn with a broken line is the U-shaped supporting member before deformation, and 12 drawn with a solid line is the U-shaped supporting member after deformation. Point A and point B are points on the U-shaped support before deformation, and point A' and point B' indicate the positions of point A and point B after deformation. U A and U B are point A and point B
This is the displacement determined by the deformation of . From this figure, as we approach the fixed end 9 of the U-shaped support, which gives the mount part 10 a displacement in the +Y′ direction, the U-shaped support
It can be seen that the displacement in the Y′ direction becomes smaller. This can be seen from the fact that U A > U B. Conversely, the same effect can be obtained even if the mount portion 10 is displaced in the -Y' direction. Further, since the entire length of the U-shaped support from the mounting portion 10 to the fixed end 9 of the U-shaped support is long, the displacement in the Y' direction is smoothly attenuated.
従つて、Ｕ字形支持材で第３図の如き形状を有
する振動子の基部の下方中央を第２図の如く支持
すると振動子の基部がY′方向に大きく変位して
もその変位はＵ字形支持材で滑かに減衰し、振動
エネルギーは損失しない。そこで20万以上の高い
Ｑ値が得られる。尚、基部の下方中央を支持する
理由はＸ方向変位の最も小さい部分だからであ
る。 Therefore, if the lower center of the base of a vibrator having a shape as shown in FIG. 3 is supported by a U-shaped support member as shown in FIG. It is smoothly damped by the supporting material, and no vibration energy is lost. Therefore, a high Q value of over 200,000 can be obtained. Note that the reason why the lower center of the base is supported is because it is the part that undergoes the smallest displacement in the X direction.
第９図は、マウント部分１０に＋Z′方向の変位
を与えたときのＵ字形支持材の変形の様子を極端
に描いたものである。破線で描いた１３は変形前
のＵ字形支持材、実線で描いた１４は変形後のＵ
字形支持材、斜線部１５は固定端、破線で丸く囲
んだ部分１６はマウント部分である。本図より
U2＞U1
となつており、Ｕ字形支持材の全長が長いことか
ら、＋Z′方向の変位が滑かに減衰することがわか
る。マウント部分に−Z′方向の変位を与えた場合
も同様である。 FIG. 9 is an extreme depiction of the deformation of the U-shaped support when the mount portion 10 is displaced in the +Z' direction. 13 drawn with a broken line is the U-shaped support before deformation, and 14 drawn with a solid line is the U-shaped support after deformation.
The shaded part 15 of the letter-shaped support member is a fixed end, and the part 16 circled by a broken line is a mount part. From this figure, it can be seen that U 2 > U 1 and since the overall length of the U-shaped support is long, the displacement in the +Z′ direction is smoothly attenuated. The same holds true when the mount portion is displaced in the −Z′ direction.
従つて、Ｕ字形支持材で第３図の如き形状を有
する振動子の基部がZ′方向に大きく変位しても、
その変位はＵ字形支持材で滑かに減衰し、Z′方向
の振動エネルギーは損失しない。 Therefore, even if the base of the vibrator, which has a U-shaped support and has a shape as shown in Fig. 3, is largely displaced in the Z' direction,
The displacement is smoothly damped by the U-shaped support, and no vibration energy is lost in the Z′ direction.
そこで、第３図の如き形状を有する振動子の基
部の下方中央をＵ字形支持材で支持すれば、振動
子基部のY′，Z′方向変位が大きくても振動エネル
ギーが損失せず、20万以上という高いＱ値が得ら
れる。 Therefore, if the lower center of the base of the vibrator having the shape as shown in Fig. 3 is supported by a U-shaped support member, vibration energy will not be lost even if the displacement of the vibrator base in the Y' and Z' directions is large. A high Q value of over 1,000,000 can be obtained.
本発明になる結合音叉型水晶振動子は20万以上
なる高いＱ値が得られるため、共振周波数の経時
変化が少ないという利点を有する。また、Ｑ値が
高いことから、クリスタル・インピーダンスが小
さく、電子時計に用いた時、従来の結合音叉型水
晶振動子よりも、消費エネルギーが減少するとい
う利点を有する。 Since the coupled tuning fork type crystal resonator according to the present invention can obtain a high Q value of 200,000 or more, it has the advantage that there is little change in resonance frequency over time. Furthermore, since the Q value is high, the crystal impedance is small, and when used in an electronic watch, it has the advantage of reducing energy consumption compared to a conventional coupled tuning fork type crystal resonator.
本発明により、共振周波数の経時変化が少なく
クリスタル・インピーダンスの小さい結合音叉型
水晶振動子が得られる。この結合音叉型水晶振動
子を電子時計に用いることにより、高精度を実現
できる。 According to the present invention, it is possible to obtain a coupled tuning fork type crystal resonator with a small change in resonant frequency over time and a low crystal impedance. By using this coupled tuning fork type crystal resonator in electronic watches, high precision can be achieved.
尚、本発明は結合音叉型水晶振動子に限らず、
広く、音叉型振動子に適用できることと、第３図
に示された形状以外の形状の音叉型振型振動子に
も適用できることは明らかである。 Note that the present invention is not limited to coupled tuning fork type crystal resonators;
It is clear that the present invention can be broadly applied to tuning fork vibrators, and can also be applied to tuning fork vibrator vibrators having shapes other than those shown in FIG.
第１図は、従来の結合音叉型水晶振動子の外観
を示す。第２図は、本発明の一具体例の外観を示
す。第３図は、第２図の振動子の外形形状を示
す。第４図は、−１〜１の部分におけるＸ軸方向
変位を示す。第５図は、−１〜１の部分における
Y′軸方向変位を示す。第６図は、−１〜１の部分
におけるZ′軸方向変位を示す。第７図は、Ｕ字形
支持材の詳細図。第８図は、Ｕ字形支持材のマウ
ント部分に＋Y′方向の変位を与えたときの変形
前後の形状を示す。第９図は、Ｕ字形支持材のマ
ウント部分に＋Z′方向の変位を与えたときの変形
前後の形状を示す。
１……従来の結合音叉型水晶振動子、２……リ
ード、３……半田、４……プラグ、５……結合音
叉型水晶振動子、６……Ｕ字形支持材、６ａ……
Ｕ字状湾曲部、６ｂ……植設部、７……半田、８
…Ｕ字形支持材、９……Ｕ字形支持材の固定端、
１０……Ｕ字形支持材のマウント部、１１……変
形前のＵ字形支持材、１２……変形後のＵ字形支
持材、１３……変形前のＵ字形支持材、１４……
変形後のＵ字形支持材、１５……Ｕ字形支持材の
固定端、１６……Ｕ字形支持材のマウント部分、
１７……基部、１８……リード。
FIG. 1 shows the appearance of a conventional coupled tuning fork type crystal resonator. FIG. 2 shows the appearance of one embodiment of the present invention. FIG. 3 shows the external shape of the vibrator shown in FIG. 2. FIG. FIG. 4 shows the displacement in the X-axis direction in the range from -1 to 1. Figure 5 shows the area between -1 and 1.
It shows the displacement in the Y′ axis direction. FIG. 6 shows the displacement in the Z'-axis direction in the range -1 to 1. FIG. 7 is a detailed view of the U-shaped support. FIG. 8 shows the shape before and after deformation when the mount portion of the U-shaped support member is displaced in the +Y' direction. FIG. 9 shows the shape before and after deformation when the mount portion of the U-shaped support member is displaced in the +Z' direction. DESCRIPTION OF SYMBOLS 1... Conventional coupled tuning fork type crystal resonator, 2... Lead, 3... Solder, 4... Plug, 5... Coupled tuning fork type crystal resonator, 6... U-shaped support material, 6a...
U-shaped curved part, 6b... Planting part, 7... Solder, 8
... U-shaped support, 9... fixed end of U-shaped support,
DESCRIPTION OF SYMBOLS 10...Mount part of U-shaped support material, 11...U-shaped support material before deformation, 12...U-shaped support material after deformation, 13...U-shaped support material before deformation, 14...
U-shaped support after deformation, 15...Fixed end of U-shaped support, 16...Mount part of U-shaped support,
17...Base, 18...Lead.
Claims (1)
水晶振動子５の基部１７と一端が接着されたＵ字
形支持材６と前記Ｕ字形支持材６の他端が植設さ
れたプラグ４とからなり、前記Ｕ字形支持材６
は、一端が前記結合音叉型水晶振動子５の前記基
部１７の下方中央部で接着されてなるマウント部
１０と、該マウント部１０から伸長し前記結合音
叉型水晶振動子５の前記基部１７面と平行で且つ
前記結合音叉型水晶振動子５の長手方向と直角方
向に湾曲されてなるＵ字状湾曲部６ａと、前記Ｕ
字形支持材６の他端から伸長し前記プラグ４に植
設される植設部６ｂとを一体に形成したリード１
８からなり、更に前記Ｕ字状湾曲部６ａは前記結
合音叉型水晶振動子５の底部と前記プラグ４間の
空間に配置されたことを特徴とする結合音叉型水
晶振動子。1 A coupled tuning fork type crystal resonator 5, a U-shaped support member 6 having one end glued to the base 17 of the combined tuning fork type crystal resonator 5, and a plug 4 having the other end of the U-shaped support member 6 implanted. The U-shaped support member 6
includes a mount portion 10 whose one end is bonded to the lower central portion of the base 17 of the coupled tuning fork crystal resonator 5; and a surface of the base 17 of the coupled tuning fork crystal resonator 5 extending from the mount portion 10. a U-shaped curved portion 6a that is parallel to and curved in a direction perpendicular to the longitudinal direction of the coupled tuning fork crystal resonator 5;
A lead 1 is integrally formed with a planting portion 6b extending from the other end of the letter-shaped support member 6 and being planted in the plug 4.
8, and further characterized in that the U-shaped curved portion 6a is disposed in a space between the bottom of the coupled tuning fork crystal resonator 5 and the plug 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14299379A JPS5666923A (en) | 1979-11-05 | 1979-11-05 | Quartz oscillator of tuning fork type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14299379A JPS5666923A (en) | 1979-11-05 | 1979-11-05 | Quartz oscillator of tuning fork type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5666923A JPS5666923A (en) | 1981-06-05 |
| JPS6258175B2 true JPS6258175B2 (en) | 1987-12-04 |
Family
ID=15328439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14299379A Granted JPS5666923A (en) | 1979-11-05 | 1979-11-05 | Quartz oscillator of tuning fork type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5666923A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3430558B2 (en) * | 1993-06-18 | 2003-07-28 | 松下電器産業株式会社 | Electric motor |
-
1979
- 1979-11-05 JP JP14299379A patent/JPS5666923A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5666923A (en) | 1981-06-05 |
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