JPS6320185Y2 - - Google Patents
Info
- Publication number
- JPS6320185Y2 JPS6320185Y2 JP18943080U JP18943080U JPS6320185Y2 JP S6320185 Y2 JPS6320185 Y2 JP S6320185Y2 JP 18943080 U JP18943080 U JP 18943080U JP 18943080 U JP18943080 U JP 18943080U JP S6320185 Y2 JPS6320185 Y2 JP S6320185Y2
- Authority
- JP
- Japan
- Prior art keywords
- insulating plate
- crystal
- vibrating piece
- crystal vibrating
- piece
- 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 36
- 125000006850 spacer group Chemical group 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000035939 shock Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
【考案の詳細な説明】
本考案は、絶縁板と平行に水晶片を設けた構成
の水晶振動子における温度特性を改良した構造に
関する。[Detailed Description of the Invention] The present invention relates to a structure in which the temperature characteristics of a crystal resonator having a structure in which a crystal piece is provided in parallel with an insulating plate are improved.
水晶振動子は発振器、フイルタ等に広く利用さ
れ、その用途は拡大の一途にある。 Crystal resonators are widely used in oscillators, filters, etc., and their applications are continuing to expand.
一般に、水晶振動子は第１図に示す如く、絶縁
ベース３に設けられる一対のリード４，４に対
し、接続ワイヤ５，５を設け、ワイヤ５，５の先
端で、水晶振動片１を保持する構造が採用されて
いる。このワイヤ５，５は又、水晶振動片１の一
対の両面電極２，２とリード４，４との電気的接
続のためにも利用される。 Generally, as shown in FIG. 1, in a crystal resonator, connecting wires 5, 5 are provided for a pair of leads 4, 4 provided on an insulating base 3, and the crystal resonator piece 1 is held at the tips of the wires 5, 5. A structure is adopted. The wires 5, 5 are also used for electrical connection between the pair of double-sided electrodes 2, 2 of the crystal vibrating piece 1 and the leads 4, 4.
このような構成においては、水晶振動片１はワ
イヤ５のクリツプ状先端に支持されている関係
上、このクリツプへのはさみ込み作業に注意を要
し、自動化工程の導入を困難としていた。又、ワ
イヤ５の弾性力によつて保持されているので、外
部の振動や衝撃に弱く、水晶片が破損し易いとい
う欠点も有していた。更に近年要求される水晶振
動子の小型化にも不向きであつた。 In this configuration, since the crystal vibrating piece 1 is supported by the clip-shaped tip of the wire 5, care must be taken when inserting it into the clip, making it difficult to introduce an automated process. Furthermore, since it is held by the elastic force of the wire 5, it is vulnerable to external vibrations and shocks, and the crystal piece has the disadvantage of being easily damaged. Furthermore, it was not suitable for the miniaturization of crystal resonators that has been required in recent years.
このため、水晶振動片を絶縁基板に平行に設け
る構成のものが知られているが、温度特性が良好
でないという欠点があつた。 For this reason, a structure in which a crystal vibrating piece is provided in parallel to an insulating substrate is known, but it has the disadvantage that the temperature characteristics are not good.
本考案は、衝撃等の外力に強く、自動化が容易
で、小型化が可能でしかも温度特性の優れた新規
な水晶振動子を提供することを目的とする。 The object of the present invention is to provide a new crystal resonator that is resistant to external forces such as shocks, can be easily automated, can be miniaturized, and has excellent temperature characteristics.
以下、本考案を図面によつて詳細に説明する。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
第２図及び第３図は本考案の一実施例構成図で
あり、第２図はその断面図、第３図はその上面図
である。 2 and 3 are configuration diagrams of one embodiment of the present invention, with FIG. 2 being a sectional view thereof and FIG. 3 being a top view thereof.
図中、第１図と同一のものは同一の記号で示し
てあり、６は絶縁板であり、ほぼ円形をなしてい
るが、角形でもよい。７はスペーサーであり、絶
縁、導電いずれの材料でもよく、図では、丸棒状
をなしている、三角柱、四角柱等の多角柱で構成
しても良い。 In the figure, the same parts as in FIG. 1 are indicated by the same symbols, and 6 is an insulating plate, which is approximately circular, but may be square. Reference numeral 7 denotes a spacer, which may be made of either an insulating or a conductive material, and may be formed of a polygonal prism such as a triangular prism or a square prism, which has a round bar shape in the figure.
絶縁板６には、スペーサー７，７が固定され、
更にスペーサー７，７上に水晶振動片１が設けら
れる。従つて、水晶振動片１は絶縁板６に保持さ
れることになる。 Spacers 7, 7 are fixed to the insulating plate 6,
Further, a crystal vibrating piece 1 is provided on the spacers 7, 7. Therefore, the crystal vibrating piece 1 is held by the insulating plate 6.
水晶振動片１の上面、絶縁板６と対向しない面
には、水晶振動片１の励振用の一方の電極２はス
ペーサー７（第３図右側のもの）上の半田層を介
し、絶縁板６の周縁に設けられた外部との接続用
導体パターンと電気的に接続される。この半田接
続によつて、絶縁板６とスペーサー７、スペーサ
ー７と水晶振動片１とが機械的にも接続される。
左側のスペーサー７も同様にして半田付けで機械
接続してもよいが、この場合電気的接続は行なわ
ない。 One electrode 2 for excitation of the crystal vibrating piece 1 is connected to the upper surface of the crystal vibrating piece 1, the surface not facing the insulating plate 6, through the solder layer on the spacer 7 (the one on the right side of FIG. 3), and the insulating plate 6 It is electrically connected to a conductor pattern for connection with the outside provided around the periphery. This solder connection also mechanically connects the insulating plate 6 and the spacer 7, and the spacer 7 and the crystal vibrating piece 1.
The left spacer 7 may also be mechanically connected by soldering in the same manner, but in this case no electrical connection is made.
逆に、一方の電極２に直接外部リード線を接続
してもよい。この場合、前述の機械的接続は、接
着剤によつて行なうと良い。 Conversely, an external lead wire may be directly connected to one electrode 2. In this case, the above-mentioned mechanical connection is preferably made with an adhesive.
絶縁板６の下面、水晶振動片１に対向しない面
に励振用の他方の電極２′を設ける。 The other electrode 2' for excitation is provided on the lower surface of the insulating plate 6, the surface not facing the crystal vibrating piece 1.
水晶振動片の一方の電極２は直接設けられてい
るが、他方の電極２′はスペーサー７による空隙
及び絶縁板６を介し間接的に設けられていること
になる。このことは、電気的に見ると、水晶振動
片１に対し直列に、空隙及び絶縁板６による容量
成分、コンデンサ、を接続したことになる。この
場合、絶縁板６の誘電率が大きく、従つて殆んど
絶縁板６の容量成分に依存することになる。絶縁
板６は周囲温度の変化により、その厚みが変化す
る。即ち、容量変化を生ぜしめる。このため、水
晶振動片１が周囲温度の変化によつて発振周波数
がずれても、この変化を補償するように絶縁板６
の容量が変化する。たとえば、容量が小さくなれ
ば、水晶振動子の発振周波数を高めることがで
き、温度特性を改善することができる。 One electrode 2 of the crystal vibrating piece is directly provided, while the other electrode 2' is provided indirectly through the gap formed by the spacer 7 and the insulating plate 6. From an electrical point of view, this means that a capacitance component and a capacitor formed by the air gap and the insulating plate 6 are connected in series to the crystal vibrating piece 1. In this case, the dielectric constant of the insulating plate 6 is large, and therefore it depends almost on the capacitance component of the insulating plate 6. The thickness of the insulating plate 6 changes with changes in ambient temperature. That is, it causes a change in capacitance. Therefore, even if the oscillation frequency of the crystal vibrating piece 1 shifts due to changes in ambient temperature, the insulating plate 6
The capacitance changes. For example, if the capacitance is reduced, the oscillation frequency of the crystal resonator can be increased and the temperature characteristics can be improved.
第４図は、本考案の効果を説明する図であり、
実線が従来の構成による温度対周波数ずれ
（Δ／）特性、点線が本考案の構成による特性
であり、本考案の特性が温度変化による周波数ず
れの少ないことを実証している。 FIG. 4 is a diagram explaining the effect of the present invention,
The solid line shows the temperature vs. frequency deviation (Δ/) characteristic of the conventional configuration, and the dotted line shows the characteristic of the configuration of the present invention, which proves that the characteristics of the present invention have less frequency deviation due to temperature changes.
このような作用を行う絶縁板６として、水晶片
を用いると更に良好な結果を示す。 Even better results are obtained when a crystal piece is used as the insulating plate 6 that performs such an action.
即ち、水晶振動片１の軸X1Z1と絶縁板６の水
晶片の軸X2Z2との間の角度をθとする。 That is, the angle between the axis X 1 Z 1 of the crystal vibrating piece 1 and the axis X 2 Z 2 of the crystal piece of the insulating plate 6 is defined as θ.
第５図はその角度の相違による温度対周波数ず
れ特性図である。 FIG. 5 is a temperature vs. frequency deviation characteristic diagram due to the difference in angle.
絶縁板６にも水晶を用いると、水晶振動片１と
絶縁板６とが等しい膨張、収縮を呈するため、歪
がかからない。このため、安定な振動子を得るこ
とができる。この場合、第５図に示す様に、θ＝
0゜、即ち絶縁板６と水晶振動片１の軸方向が揃
う、の場合最も温度特性が良好となることがわか
る。 If quartz is also used for the insulating plate 6, the crystal vibrating piece 1 and the insulating plate 6 exhibit equal expansion and contraction, so that no distortion occurs. Therefore, a stable vibrator can be obtained. In this case, as shown in Figure 5, θ=
It can be seen that the temperature characteristics are the best when the angle is 0°, that is, when the axes of the insulating plate 6 and the crystal vibrating piece 1 are aligned.
以上の様に、本考案によれば、絶縁板に対し水
晶振動片を空隙を介し直接保持固定しているた
め、外部からの衝撃等に強い構成となり、又電極
がいずれも外側に設けられているため、周波数調
整のためトリミング等もやり易く、更にクリツプ
構造でないので自動化に好適であり、しかも温度
特性の改善された優れた水晶振動子を得ることが
可能となる。 As described above, according to the present invention, since the crystal vibrating piece is directly held and fixed to the insulating plate through the gap, the structure is strong against external shocks, etc., and the electrodes are both provided on the outside. Therefore, it is easy to perform trimming for frequency adjustment, and since it does not have a clip structure, it is suitable for automation, and it is possible to obtain an excellent crystal resonator with improved temperature characteristics.
第１図は、従来の水晶振動子構成図、第２図及
び第３図は本考案の一実施例構成図、第４図は本
考案による温度対周波数ずれ特性図、第５図は本
考案の実施例として水晶を用いた場合の温度対周
波数ずれ特性図を示す。
１……水晶振動片、２……電極、３……絶縁ベ
ース、４……リード、５……接続ワイヤ、６……
絶縁板、７……スペーサー。
Figure 1 is a diagram of a conventional crystal oscillator configuration, Figures 2 and 3 are diagrams of an embodiment of the present invention, Figure 4 is a temperature vs. frequency deviation characteristic diagram of the present invention, and Figure 5 is a diagram of the present invention. A temperature vs. frequency shift characteristic diagram when using a crystal as an example of the present invention is shown. 1... Crystal vibrating piece, 2... Electrode, 3... Insulating base, 4... Lead, 5... Connection wire, 6...
Insulating plate, 7...spacer.
Claims (1)
なる水晶振動子において、前記水晶片の一面に一
方の電極を、前記絶縁板の水晶片と対向しない面
に他方の電極を設けたことを特徴とする水晶振動
子。 In a crystal resonator formed by holding a crystal piece on an insulating plate with a predetermined gap, one electrode is provided on one surface of the crystal piece, and the other electrode is provided on a surface of the insulating plate that does not face the crystal piece. A crystal oscillator featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18943080U JPS6320185Y2 (en) | 1980-12-30 | 1980-12-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18943080U JPS6320185Y2 (en) | 1980-12-30 | 1980-12-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57113528U JPS57113528U (en) | 1982-07-14 |
| JPS6320185Y2 true JPS6320185Y2 (en) | 1988-06-06 |
Family
ID=29993530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18943080U Expired JPS6320185Y2 (en) | 1980-12-30 | 1980-12-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6320185Y2 (en) |
-
1980
- 1980-12-30 JP JP18943080U patent/JPS6320185Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57113528U (en) | 1982-07-14 |
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