JPS6118882B2 - - Google Patents
Info
- Publication number
- JPS6118882B2 JPS6118882B2 JP52082776A JP8277677A JPS6118882B2 JP S6118882 B2 JPS6118882 B2 JP S6118882B2 JP 52082776 A JP52082776 A JP 52082776A JP 8277677 A JP8277677 A JP 8277677A JP S6118882 B2 JPS6118882 B2 JP S6118882B2
- Authority
- JP
- Japan
- Prior art keywords
- base
- vibrator
- terminal
- electrode
- conductive band
- 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
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011104 metalized film Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Electric Clocks (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
【発明の詳細な説明】 本発明は小型化に適する圧電振動子に関する。[Detailed description of the invention] The present invention relates to a piezoelectric vibrator suitable for miniaturization.
近時小型の圧電振動子をタイムベースに用い
た、たとえば腕時計等の電子時計が知られてい
る。ところでこの種の電子時計では使用部品を小
型化することが望まれ、特に婦人用の超小型腕時
計等では圧電振動子を極力小型化する必要があ
る。第１図は従来の圧電振動子の一例を示す図
で、第１図ａはベースの斜視図、第１図ｂはベー
スに振動子を保持した状態を示す斜視図、第１図
ｃはベースの断面図である。すなわちセラミツ
ク、ガラス等の円柱の基台１の外周にメタライズ
処理、あるいは金属リング等を嵌装して導電帯２
を形成し、さらに上記基台１の中央部に一対の端
子３を平行に貫装しベースを形成する。そうして
所定の電極を形成した振動子４の所定の部位に導
入線５を接続し、この導入線５を上記一対の端子
３にそれぞれ接続し保持するようにしている。そ
うして上記端子３を介して上記振動子４を励振す
る。なお、振動子４には下端が開口する図示しな
い金属ケース等をかぶせ、開口端を基台１の外周
の導電帯２にハンダ付け等で接着して密封し、内
部を真空にしている。 BACKGROUND ART Recently, electronic timepieces, such as wristwatches, that use small piezoelectric vibrators as time bases have become known. Incidentally, it is desired that the parts used in this type of electronic watch be made smaller, and in particular, in ultra-compact ladies' watches, etc., it is necessary to make the piezoelectric vibrator as small as possible. Figure 1 is a diagram showing an example of a conventional piezoelectric vibrator, where Figure 1a is a perspective view of the base, Figure 1b is a perspective view showing the vibrator held on the base, and Figure 1c is the base. FIG. That is, a conductive band 2 is formed by metallizing the outer periphery of a cylindrical base 1 made of ceramic, glass, etc., or by fitting a metal ring, etc.
A pair of terminals 3 are inserted in parallel to the center of the base 1 to form a base. A lead-in wire 5 is connected to a predetermined portion of the vibrator 4 on which a predetermined electrode is formed, and the lead-in wire 5 is connected to and held by the pair of terminals 3, respectively. The vibrator 4 is then excited via the terminal 3. Note that the vibrator 4 is covered with a metal case (not shown) having an open bottom end, and the open end is sealed by adhering to the conductive band 2 on the outer periphery of the base 1 by soldering or the like, thereby creating a vacuum inside.
しかしながら、このようなものでは振動子４の
電極を一対の端子３を介して外部へ導出している
ためにベースの寸法に大きな規制を受けてしま
う。すなわち、絶縁性、機械的な強度等を考慮し
て最小寸法を考え、導電帯２の厚みをｔ、導電帯
２と端子３との距離をａ、端子３の径をｃ、端子
３間の距離をｂとすれば第１図ｃに示すようにベ
ースの外径の最小値Ｒnioは次の(1)式で示され
る。 However, in such a device, since the electrodes of the vibrator 4 are led out to the outside via the pair of terminals 3, the dimensions of the base are subject to large restrictions. That is, considering the minimum dimensions in consideration of insulation properties, mechanical strength, etc., the thickness of the conductive band 2 is t, the distance between the conductive band 2 and the terminal 3 is a, the diameter of the terminal 3 is c, and the distance between the terminals 3 is Assuming that the distance is b, the minimum value R nio of the outer diameter of the base is expressed by the following equation (1), as shown in FIG. 1c.
Ｒnio＝2t＋2a＋2c＋ｂ ……(1)
そして、これらの値を無視して小型化する場合
は信頼性が低い振動子しか得られないことにな
る。 R nio = 2t + 2a + 2c + b (1) If these values are ignored and the size is miniaturized, only a vibrator with low reliability will be obtained.
本発明は上記の事情に鑑みてなされたもので形
状が小型で信頼性が高く、しかもコストの安価な
圧電振動子を提供することを目的とするものであ
る。以下本発明の一実施例を第２図ａに示すベー
スの斜視図、第２図ｂに示すベースに振動子を保
持した状態を示す斜視図、第２図ｃに示すベース
の断面図、および第２図ｄに示す截断面図を参照
して説明する。図中１０１はセラミツク、ガラス
等の円柱の基台、１０２は基台１０１の外周に添
設したメタライズ処理膜、金属リング等からなる
導電帯、１０３は基台１０１の略中央に貫装した
頭部に端子板１０３ａを形成した一方の端子であ
る。なおこの端子１０３の頭部１０３ａは基台１
０１の一側平面、すなわち主面と同一平面になる
ようにしている。そして第２図ｂに示すように音
叉形の振動子１０４を上記基台１０１の主面に配
置し一対の電極の一方を下端面、他方を側壁面へ
導出し、この振動子１０４の下端面を、たとえば
導電性接着剤１０５ａによつて上記端子１０３の
端子板１０３ａに接着し保持する。また上記振動
子１０４の側壁と上記導電帯１０２との間を、た
とえば導電性接着剤１０５ｂによつて接続する。
そして上記振動子１０４に一端の開口した金属ケ
ース１０６をかぶせ、この開口端を上記導電帯１
０２にハンダ付けあるいはインジウム等の導電帯
によつて取着して密閉し内部を真空にする。そし
てケース１０６の、たとえば頂部から他方の端子
１０７を導出する。 The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a piezoelectric vibrator that is small in size, highly reliable, and inexpensive in cost. An embodiment of the present invention will be described below with a perspective view of the base shown in FIG. 2a, a perspective view showing the state in which the vibrator is held on the base shown in FIG. 2b, a sectional view of the base shown in FIG. 2c, and This will be explained with reference to the cross-sectional view shown in FIG. 2d. In the figure, 101 is a cylindrical base made of ceramic, glass, etc., 102 is a conductive band made of a metallized film, metal ring, etc. attached to the outer periphery of the base 101, and 103 is a head inserted approximately in the center of the base 101. This is one terminal on which a terminal plate 103a is formed. Note that the head 103a of this terminal 103 is connected to the base 1.
01, that is, the same plane as the main surface. Then, as shown in FIG. 2b, a tuning fork-shaped vibrator 104 is arranged on the main surface of the base 101, one of the pair of electrodes is led out to the lower end surface, the other is led out to the side wall surface, and the lower end surface of this vibrator 104 is guided. is adhered to and held on the terminal plate 103a of the terminal 103 using, for example, a conductive adhesive 105a. Further, the side wall of the vibrator 104 and the conductive band 102 are connected by, for example, a conductive adhesive 105b.
Then, the vibrator 104 is covered with a metal case 106 having an open end, and this open end is connected to the conductive band 1.
02 by soldering or using a conductive band made of indium, etc., and sealing it to create a vacuum inside. Then, the other terminal 107 is led out from, for example, the top of the case 106.
このような構成であれば絶縁性、機械的な強度
等による条件を(1)式と同一と仮定した場合、２図
ｃに示すようベースの外径を最小値ｒnioは次の
(2)式で示される。 With this configuration, assuming that the conditions such as insulation and mechanical strength are the same as in equation (1), the outer diameter of the base should be set to the minimum value r nio as shown in Figure 2c.
It is shown by equation (2).
ｒnio＝2t＋2a＋ｃ ……(2)
したがつて従来のベースの最小値Ｒnioと本発
明による上記実施例のベースの最小値ｒnioとを
比較すると次の(3)式が得られる。 r nio =2t+2a+c (2) Therefore, by comparing the minimum value R nio of the conventional base with the minimum value r nio of the base of the above embodiment according to the present invention, the following equation (3) is obtained.
Ｒnio−ｒnio＝ｃ＋ｂ ……(3)
すなわち上記実施例によれば端子３の径ｃおよ
び端子３間の距離ｂだけベースの外径を小さくす
ることができそれによつて全体の形状を小型化す
ることができる。さらに部品数が少なくしかも端
子１０３の貫装位置の許容範囲が略２倍になり製
造工程における歩どまりが向上し、高い生産性が
得られる。また形状を小型化するために極端に細
い端子、たとえば0.1mm程度を用いると端子が折
れ易い等の問題を生じるが本発明によれば端子１
０３の径を太くしてもベースの外径の増加は従来
の1/2とすることができ端子１０３の径を太くし
て信頼性を高めることができる。したがつて振動
子の信頼性を高めることができ、しかもコストも
安価である。 R nio −r nio = c + b ... (3) That is, according to the above embodiment, the outer diameter of the base can be reduced by the diameter c of the terminal 3 and the distance b between the terminals 3, thereby reducing the overall shape. can be converted into Furthermore, the number of parts is small and the permissible range of the insertion position of the terminal 103 is approximately doubled, improving the yield in the manufacturing process and achieving high productivity. Furthermore, if an extremely thin terminal, for example about 0.1 mm, is used in order to downsize the shape, problems such as the terminal easily breaking may occur, but according to the present invention, the terminal 1
Even if the diameter of the terminal 103 is increased, the increase in the outer diameter of the base can be reduced to 1/2 compared to the conventional one, and the reliability can be improved by increasing the diameter of the terminal 103. Therefore, the reliability of the vibrator can be improved, and the cost is also low.
またこのように金属ケース１０６の頂部にリー
ド線１０７を接続すれば筒状の金属ケース１０６
の両端からリード線１０３，１０７を導出するこ
とができ一般的な抵抗、コンデンサ等と外形形状
が同じになり自動作業機械等の導入を行なうこと
ができる。 Moreover, if the lead wire 107 is connected to the top of the metal case 106 in this way, the cylindrical metal case 106
Lead wires 103 and 107 can be led out from both ends of the capacitor, and the external shape is the same as that of a general resistor, capacitor, etc., and it can be installed in an automatic working machine, etc.
なお本発明は上記実施例に限定されるものでは
なく第３図ａ，ｂ乃至第６図ａ，ｂに各別のベー
スの平面図および截断面図を示すように種々変形
し得ることは勿論である。すなわち、第３図、第
４図、第６図に示すように頭部に端子板１０３ａ
のない端子１０３を用いてもよいし、第４図、第
５図に示すように導電帯１０２を基台１０１の外
周だけでなく主面にまで延出するようにしてもよ
い。また第６図に示すように導電帯１０２をベー
スの一側から主面の中心方向へ延出し、かつ端子
１０３をベースの他側へ偏心して貫装するように
してもよい。 It should be noted that the present invention is not limited to the above-mentioned embodiments, and can of course be modified in various ways, as shown in FIGS. It is. That is, as shown in FIGS. 3, 4, and 6, the terminal plate 103a is attached to the head.
Terminals 103 without a terminal may be used, or the conductive band 102 may extend not only to the outer periphery of the base 101 but also to the main surface as shown in FIGS. 4 and 5. Alternatively, as shown in FIG. 6, the conductive band 102 may extend from one side of the base toward the center of the main surface, and the terminal 103 may be eccentrically inserted through the other side of the base.
以上詳述したように本発明は振動子の一対の電
極の一方を基台に貫装した一方の端子、他方の電
極を基台の外周に形成した導電帯にそれぞれ接続
し、一端に開口を有する金属ケースの開口端を上
記導電帯に接続して上記振動子を密閉しかつこの
ケースから他方の端子を導出するようにしたもの
である。したがつて、形状が小型で生産性が高
く、コストも安価で信頼性が高く、しかも接続、
保持等も容易に行なえる圧電振動子を提供するこ
とができる。 As detailed above, the present invention connects one of the pair of electrodes of the vibrator to one terminal inserted through the base, the other electrode to a conductive band formed on the outer periphery of the base, and an opening at one end. The open end of the metal case is connected to the conductive band to seal the vibrator, and the other terminal is led out from the case. Therefore, the shape is small, productivity is high, cost is low, and reliability is high.
A piezoelectric vibrator that can be easily held can be provided.
第１図ａ，ｂ，ｃは従来の圧電振動子の一例を
示す図でａはベースの斜視図、ｂは振動子を保持
したベースを示す斜視図、ｃはベースの截断面
図、第２図ａ，ｂ，ｃ，ｄは本発明の一実施例を
示す図でａはベースの斜視図、ｂは振動子を保持
したベースを示す斜視図、ｃはベースの截断面
図、ｄは截断面図、第３図ａ，ｂ乃至第６図ａ，
ｂは本発明の各別の他の実施例のベースの平面図
および截断面図である。
１０１……基台、１０２……導電帯、１０３，
１０７……端子、１０４……振動子、１０６……
金属ケース。
Figures 1 a, b, and c show an example of a conventional piezoelectric vibrator, in which a is a perspective view of the base, b is a perspective view of the base holding the vibrator, c is a cross-sectional view of the base, and Figures a, b, c, and d show an embodiment of the present invention, in which a is a perspective view of the base, b is a perspective view of the base holding the vibrator, c is a cross-sectional view of the base, and d is a cross-sectional view of the base. Top views, Figures 3a, b to 6a,
b is a plan view and a cutaway view of the base of each other embodiment of the present invention. 101... Base, 102... Conductive band, 103,
107... terminal, 104... vibrator, 106...
metal case.
Claims (1)
端子と、一対の電極を有し一方の電極を下端面に
導出し他方の電極を側壁面に導出するとともに下
端面を上記基台の一側板面に接着して上記一方の
電極を上記一方の端子に接続した音叉形の振動子
と、上記基台の外周に形成され上記振動子の他方
の電極を接続した導電帯と、内部に上記振動子を
収納し開口端を上記基台の導電帯に取着して密封
した金属ケースと、この金属ケースの頂部に接続
して上記一方の端子に対して反対方向へ延出され
上記振動子の他方の電極を外部へ導出する他方の
端子とを具備する圧電振動子。1 A cylindrical base, one terminal inserted through this base, and a pair of electrodes, one electrode being led out to the lower end face and the other electrode being led out to the side wall face, and the lower end face is connected to the above base. a tuning fork-shaped vibrator that is adhered to one side plate surface of the base and has one electrode connected to the one terminal; a conductive band that is formed on the outer periphery of the base and connects the other electrode of the vibrator; A metal case that houses the vibrator and is sealed by attaching the open end to the conductive band of the base, and a metal case that is connected to the top of the metal case and extends in the opposite direction to the one terminal. A piezoelectric vibrator comprising a second terminal that leads the other electrode of the vibrator to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8277677A JPS5418294A (en) | 1977-07-11 | 1977-07-11 | Piezooelectric vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8277677A JPS5418294A (en) | 1977-07-11 | 1977-07-11 | Piezooelectric vibrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5418294A JPS5418294A (en) | 1979-02-10 |
| JPS6118882B2 true JPS6118882B2 (en) | 1986-05-14 |
Family
ID=13783820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8277677A Granted JPS5418294A (en) | 1977-07-11 | 1977-07-11 | Piezooelectric vibrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5418294A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0586576U (en) * | 1992-05-01 | 1993-11-22 | 日新工機株式会社 | Ball-point pen with ink-out notice function |
| WO2020017255A1 (en) | 2018-07-19 | 2020-01-23 | 株式会社フジクラ | Optical connector and optical connector replacement component unit |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985123A (en) * | 1982-11-05 | 1984-05-17 | Kinseki Kk | Air-tight base for piezoelectric oscillator |
| JPS5985122A (en) * | 1982-11-05 | 1984-05-17 | Kinseki Kk | Piezoelectric oscillator |
| JP2007116622A (en) * | 2005-10-24 | 2007-05-10 | Seiko Instruments Inc | Piezoelectric vibrator and method of manufacturing the same, surface-mounted piezoelectric vibrator and method of manufacturing the same, oscillator, electronic equipment and radio wave clock |
-
1977
- 1977-07-11 JP JP8277677A patent/JPS5418294A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0586576U (en) * | 1992-05-01 | 1993-11-22 | 日新工機株式会社 | Ball-point pen with ink-out notice function |
| WO2020017255A1 (en) | 2018-07-19 | 2020-01-23 | 株式会社フジクラ | Optical connector and optical connector replacement component unit |
| US11435532B2 (en) | 2018-07-19 | 2022-09-06 | Fujikura Ltd. | Optical connector and optical connector replacement component unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5418294A (en) | 1979-02-10 |
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