JPS6032969B2 - Flexible capacitor for oscillation circuit - Google Patents
Flexible capacitor for oscillation circuitInfo
- Publication number
- JPS6032969B2 JPS6032969B2 JP6333176A JP6333176A JPS6032969B2 JP S6032969 B2 JPS6032969 B2 JP S6032969B2 JP 6333176 A JP6333176 A JP 6333176A JP 6333176 A JP6333176 A JP 6333176A JP S6032969 B2 JPS6032969 B2 JP S6032969B2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- flexible
- oscillation circuit
- flexible capacitor
- base plate
- 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
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Description
【発明の詳細な説明】
本発明はフレキシブルリード線として使用できるフレキ
シブルなコンデンサに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flexible capacitor that can be used as a flexible lead wire.
近年、急速な電子技術の進歩によって電子部品が小型化
しているが、一方電子機器の組立てが非常に難しくなっ
ている。In recent years, electronic components have become smaller due to rapid advances in electronic technology, but on the other hand, it has become extremely difficult to assemble electronic devices.
しかして、組立工程を容易に軽減するために各回路部品
間、各回路部品と基板間、及び各基板間を互に接続する
ものに、第1図に示すような可榛・性を有するポリィミ
ド等の耐熱性の合成樹脂からなるフィルム状にしたベー
ス材1の一側面に所定形状の導電箔のりード線2が形成
されてなるフレキシブルリード線3が使用されている。
このようなフレキシブルリード線3を使用した一例を電
子腕時計の基準発振回路に用いた場合について説明する
と、第2図に示すような基準発振回路4を構成する水晶
振動子5と計時回路(図示せず)、ィンバータ6、帰還
抵抗7等からなる点線部で示したは18、あるいは温度
補償用コンデンサ9、周波数微調整用コンデンサ10と
の間に電気的接続をするのに用いられる。Therefore, in order to easily reduce the assembly process, polyimide having flexibility as shown in Fig. 1 is used to connect each circuit component, between each circuit component and a board, and between each board. A flexible lead wire 3 is used, in which a conductive foil lead wire 2 of a predetermined shape is formed on one side of a base material 1 made of a heat-resistant synthetic resin film.
An example of using such a flexible lead wire 3 in a reference oscillation circuit of an electronic wristwatch will be described. The reference oscillation circuit 4 shown in FIG. It is used to make an electrical connection between the dotted line portion 18 consisting of the inverter 6, the feedback resistor 7, etc., the temperature compensation capacitor 9, and the frequency fine adjustment capacitor 10.
しかして、このフレキシブルリード線3は外部から水晶
振動子に与えられる衝撃、振動等から保護するとともに
BIと水晶振動子5とを接続する組立工程を容易に行え
る。しかるに、電子腕時計の基準発振回路4を構成する
外付け部品として水晶振動子5のほかに温度補償用のコ
ンヂンサ9、周波数微調整用のコンデンサー0がある。Thus, the flexible lead wire 3 protects the crystal resonator from shocks, vibrations, etc. applied from the outside, and facilitates the assembly process for connecting the BI and the crystal resonator 5. However, in addition to the crystal oscillator 5, there are a capacitor 9 for temperature compensation and a capacitor 0 for fine frequency adjustment as external components constituting the reference oscillation circuit 4 of the electronic wristwatch.
しかし、2つの小型のコンデンサ9,10を限定された
スペースの基板上に実装することは製造工程の複雑化ひ
いては生産性の上で非常に大きな問題となるものであっ
た。本発明は上記事情に鑑みなされたもので、前述のフ
レキシブルリード線に容量を持たせることによって、夫
々のコンデンサを基板上に別個に設ける必要のない全く
新規なフレキシブルコンデンサを提供するものである。
以下図面にもとづいて本発明の−実施例を説明する。However, mounting the two small capacitors 9 and 10 on a board with limited space complicates the manufacturing process and poses a huge problem in terms of productivity. The present invention has been made in view of the above circumstances, and provides a completely new flexible capacitor that eliminates the need to separately provide each capacitor on a substrate by providing a capacitance to the flexible lead wire described above.
Embodiments of the present invention will be described below based on the drawings.
図中11はポリィミド等の耐熱性の合成樹脂からなり、
円形頭部12とこれより一体に延出された脚部13とか
らなるベース部材(以後、べース板と称す)で、このベ
ース板11は円形頭部12の中心を後述するネジ止め用
の円形の透孔14と、脚部13の先端部に後述する2本
のりード線が貫通する2つの透孔15a,15bが設け
られている。そして、ベース板11の上面には第3図a
の如く、銅等の導電部材からなる上部導電箔16が上記
の一方の透孔15aの近傍より円形頭部12に向って延
び、円形の透孔14の外周を囲み、脚部13の他方の透
孔15bの近傍まで延出形成されている。また、ベース
板11の下面には第3図Cの如く、ベース板11を介し
て、上部導電箔16に対向して一対の下部導電箔17,
18が夫々透孔15a,15bの外周を覆い且つ円形頭
部12に向って円形の透孔14の外周をほぼ半周するま
で延出されている。また、この下部導電箔17,18は
脚部13の長手方向に対して対称形をなして形成される
。従つて、上部導電箔16と下部導電箔17,18との
間にベース板11を介して2つの容量が形成されるフレ
キシブルコンヂンサとなる。すなわち、例えば前述の第
2図のコンデンサ9,10に対応する2つのコンデンサ
となり、上部導電箔16がコンデンサの共通なフレキシ
ブルリード線及び電極になり、下部導電箔17,18が
それぞれコンデンサ9,10の他方のリード線及び電極
になる。また、フレキシブルコンデンサの容量は、上部
導電箔16と下部導電箔17,18とが対向する部分の
面積及びベース板11の厚さとべ‐ス板11の誘電率で
決定され、容量値の調整は上下の導電箔16と17,1
8とが互に対向する部分の面積増減で行う。11 in the figure is made of heat-resistant synthetic resin such as polyimide,
A base member (hereinafter referred to as a base plate) consisting of a circular head 12 and a leg 13 integrally extended from the base plate. A circular through hole 14 and two through holes 15a and 15b through which two lead wires (to be described later) pass through the distal end of the leg portion 13 are provided. Then, on the top surface of the base plate 11, as shown in FIG.
An upper conductive foil 16 made of a conductive material such as copper extends toward the circular head 12 from near one of the through holes 15a, surrounds the outer periphery of the circular through hole 14, and connects the other side of the leg 13. It is formed to extend to the vicinity of the through hole 15b. Further, on the lower surface of the base plate 11, as shown in FIG.
18 cover the outer circumferences of the through holes 15a and 15b, respectively, and extend toward the circular head 12 until they extend approximately halfway around the outer circumference of the circular through hole 14. Further, the lower conductive foils 17 and 18 are formed symmetrically with respect to the longitudinal direction of the leg portion 13. Therefore, a flexible capacitor is obtained in which two capacitors are formed between the upper conductive foil 16 and the lower conductive foils 17 and 18 via the base plate 11. That is, for example, there are two capacitors corresponding to the capacitors 9 and 10 shown in FIG. This will be the other lead wire and electrode. The capacitance of the flexible capacitor is determined by the area of the opposing portion of the upper conductive foil 16 and the lower conductive foils 17 and 18, the thickness of the base plate 11, and the dielectric constant of the base plate 11, and the capacitance value can be adjusted. Upper and lower conductive foils 16 and 17,1
This is done by increasing or decreasing the area of the parts where 8 and 8 face each other.
なお、第2図に示すコンデンサ9,10のかわりとして
使用する本発明の一実施例と水晶振動子8との接続及び
ィンバータ3、帰還抵抗4を内蔵するLSI8との接続
は、透孔14,15a,15bで行われる。The connection between the embodiment of the present invention, which is used in place of the capacitors 9 and 10 shown in FIG. 15a and 15b.
第4図は第3図に示すフレキシブルコンデンサの実装状
態を示す平面図aと一部側断面図bである。FIG. 4 is a plan view a and a partial side sectional view b showing a mounting state of the flexible capacitor shown in FIG. 3.
図中、21はLSI等が装着されたガラスェポキシ、セ
ラミック等からなるプリント基板であり、切欠き部22
に水晶振動子5が押圧片23で装着され、上面には止め
ネジ用透孔24の周辺に水晶振動子5と電気的に接続す
るためのは1から引出されてリード端子25,26が形
成され、下面には透孔24の周辺に基準電位(接地)用
端子27が形成されている。そして、フレキシブルコン
デンサは下部導電箔17,18が端子25,26にそれ
ぞれ圧髪するように配置され、共にッバ部を有する導電
性の雄ネジ28雌ネジ29とで円形の透孔13がプリン
ト基板21に取着され、下部導電箔17,18が端子2
5,26‘こ密着され、導電箔16が雄ネジ28のッバ
部に密着され、下部導電箔17,18の透孔15a,1
5bは水晶振動子5のピン電極5a,5bにそれぞれハ
ンダ付けされている。なお、雌ネジ29のッバ部はプリ
ント基板21の基準電位用端子27に密着されている。
しかして、上部導電箔15は雄ネジ28、雌ネジ29を
介して基準電位用端子27に電気的に接続され、下部導
電箔17,18は水晶振動子5と端子25,26との間
のフレキシブルリード線として利用されかつ端子27と
の間のコンデンサ電極となる。In the figure, 21 is a printed circuit board made of glass epoxy, ceramic, etc. on which an LSI etc. is mounted, and a notch 22
The crystal oscillator 5 is mounted on the holder with a pressing piece 23, and lead terminals 25 and 26 are formed on the upper surface around the through hole 24 for the set screw, which are pulled out from the quartz oscillator 5 for electrical connection with the crystal oscillator 5. A reference potential (ground) terminal 27 is formed around the through hole 24 on the lower surface. The flexible capacitor is arranged so that the lower conductive foils 17 and 18 are pressed against the terminals 25 and 26, respectively, and a circular through hole 13 is printed with conductive male screws 28 and female screws 29 that have bulges. It is attached to the substrate 21, and the lower conductive foils 17 and 18 are connected to the terminals 2.
5 and 26' are closely attached, the conductive foil 16 is closely attached to the upper part of the male screw 28, and the through holes 15a and 1 of the lower conductive foils 17 and 18 are closely attached.
5b are soldered to pin electrodes 5a and 5b of the crystal resonator 5, respectively. Note that the upper part of the female screw 29 is in close contact with the reference potential terminal 27 of the printed circuit board 21.
Thus, the upper conductive foil 15 is electrically connected to the reference potential terminal 27 via the male screw 28 and the female screw 29, and the lower conductive foil 17 and 18 are connected between the crystal resonator 5 and the terminals 25 and 26. It is used as a flexible lead wire and serves as a capacitor electrode between it and the terminal 27.
そして、コンデンサの容量微調整は、下部導電箔17,
18もしくは16を削り取ることで行なわれる。なお、
コンデンサの容量値を具体的に示すと、ベース材8にポ
リィミド(比誘電率3.4)を用い、その厚さを30一
とし、上部導電箔16に対する下部導電箔17,18の
対向部分面積を1仇吻2とすると、容量はそれぞれlO
PFになり、電子腕時計の発振回路用として適切なもの
である。上記の構成において、本発明は従来のように基
準発振回路に用いられる2つの温度補償用コンデンサ9
、周波数微調整用コンデンサ10を基板上に別個に設け
る必要がない。Then, fine adjustment of the capacitance of the capacitor is performed using the lower conductive foil 17,
This is done by cutting off 18 or 16. In addition,
To specifically show the capacitance value of the capacitor, the base material 8 is made of polyimide (relative dielectric constant 3.4), its thickness is 30 mm, and the area of the opposing portion of the lower conductive foils 17 and 18 relative to the upper conductive foil 16 is If 1 x 2, the capacity is 1O
It becomes a PF and is suitable for use in the oscillation circuit of an electronic wristwatch. In the above configuration, the present invention has two temperature compensation capacitors 9 used in the reference oscillation circuit as in the conventional case.
, there is no need to separately provide the frequency fine adjustment capacitor 10 on the substrate.
即ち、部品点数が少なくてすむため余計な作業工程が省
けるという大きな利点がある。特に、水晶振動子5とプ
リント基板21の端子25,26との電気的接続をフレ
キシブルコンデンサ自体の下部導電箔17,18で行っ
ているため、フレキシブルシートによる水晶振動子5と
端子25,26との接続がそのままコンデンサの取付け
を兼ねることになり作業能率が極めて向上するために生
産性が極めて向上するばかりか機械的応力の発生が無く
なるため、製品の安全への信頼性が増すなどの効果が得
られる。なお、第5図は本発明の他の実施例で、第3図
に示すベース板1 1の上面に形成された上部導電箔3
0,31は第3図Cに示す下部導電箔17,18と対向
してほぼ同一形状にしたものである。即ち、フレキシブ
ルコンデンサを構成するベース板はどのような形状でも
よいし、ベース板を覆う導電箔もどのような形状でもよ
い。従って必要とされる容量に通した形状にすることが
できるので、コンデンサの数も2つに限らず複数個形成
することができる。要は本発明の要旨を逸脱しない範囲
で種々変形可能なことは言うまでもない。That is, there is a great advantage in that the number of parts is small and unnecessary work steps can be omitted. In particular, since the electrical connection between the crystal resonator 5 and the terminals 25, 26 of the printed circuit board 21 is made by the lower conductive foils 17, 18 of the flexible capacitor itself, the crystal resonator 5 and the terminals 25, 26 are connected by the flexible sheet. The same connection can also be used to attach the capacitor, which greatly improves work efficiency, which not only greatly improves productivity, but also eliminates the generation of mechanical stress, which increases product safety reliability. can get. 5 shows another embodiment of the present invention, in which an upper conductive foil 3 formed on the upper surface of the base plate 11 shown in FIG.
0 and 31 face the lower conductive foils 17 and 18 shown in FIG. 3C and have substantially the same shape. That is, the base plate constituting the flexible capacitor may have any shape, and the conductive foil covering the base plate may also have any shape. Therefore, since the shape can be formed to accommodate the required capacitance, the number of capacitors is not limited to two, but a plurality of capacitors can be formed. In short, it goes without saying that various modifications can be made without departing from the gist of the present invention.
以上明らかなように、本発明によるフレキシブルコンデ
ンサによれば、ベース板の両面に互いに対向する導電部
を形成させて、水晶振動子のりード電極と電子回路との
電気的接続を、これら導電部を介して行なわせたため、
回路部品間に機械的応力の発生が無いのに加えてコンデ
ンサとしての部品が不要となり、実装スペースの小型化
、製造工程の簡単化、生産性の向上がはかれると共にコ
ストの減少に役立つものである。As is clear from the above, according to the flexible capacitor of the present invention, conductive parts facing each other are formed on both sides of the base plate, and the electrical connection between the lead electrode of the crystal resonator and the electronic circuit is established through these conductive parts. Because it was done through
In addition to no mechanical stress occurring between circuit components, there is no need for any capacitor components, which reduces the mounting space, simplifies the manufacturing process, improves productivity, and helps reduce costs. .
第1図は従来のフレキシブルプリント基板の一例を示す
図、第2図は本発明によるフレキシブルコンデンサを適
用する電子回路の一例を示す図、第3図は本発明の一実
施例を示すフレキシブルコンデンサ、第4図a,bは第
3図のフレキシブルコンデンサの実装状態図、第5図は
本発明の他の実施例を示す図である。
11・・・ベース板、16,17,18・・・導電箔。
第1図第2図
第3図
第4図
第5図FIG. 1 is a diagram showing an example of a conventional flexible printed circuit board, FIG. 2 is a diagram showing an example of an electronic circuit to which a flexible capacitor according to the present invention is applied, and FIG. 3 is a diagram showing an example of a flexible capacitor according to the present invention. 4a and 4b are mounting state diagrams of the flexible capacitor of FIG. 3, and FIG. 5 is a diagram showing another embodiment of the present invention. 11... Base plate, 16, 17, 18... Conductive foil. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
ード電極と電気的接続される電子回路と、前記一対のリ
ード電極夫々に電気的接続されるコンデンサとから成る
発振回路において、前記コンデンサはフレキシブルなベ
ース部材の両面に互いに対向する導電部が設けられたフ
レキシブルコンデンサであり、前記振動子のリード電極
と前記電子回路との電気的接続は前記フレキシブルコン
デンサの前記導電部を介して行なわれていることを特徴
とする発振回路のフレキシブルコンデンサ。1. An oscillation circuit comprising a vibrator having a pair of lead electrodes, an electronic circuit electrically connected to the pair of lead electrodes, and a capacitor electrically connected to each of the pair of lead electrodes, wherein the capacitor is flexible. The flexible capacitor is provided with conductive parts facing each other on both sides of a base member, and electrical connection between the lead electrode of the vibrator and the electronic circuit is made via the conductive part of the flexible capacitor. A flexible capacitor for an oscillation circuit characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6333176A JPS6032969B2 (en) | 1976-05-31 | 1976-05-31 | Flexible capacitor for oscillation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6333176A JPS6032969B2 (en) | 1976-05-31 | 1976-05-31 | Flexible capacitor for oscillation circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52146858A JPS52146858A (en) | 1977-12-06 |
JPS6032969B2 true JPS6032969B2 (en) | 1985-07-31 |
Family
ID=13226148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6333176A Expired JPS6032969B2 (en) | 1976-05-31 | 1976-05-31 | Flexible capacitor for oscillation circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6032969B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0546725U (en) * | 1991-11-25 | 1993-06-22 | 松下電器産業株式会社 | Parts packaging |
WO2014203633A1 (en) | 2013-06-17 | 2014-12-24 | 株式会社村田製作所 | Flexible cable and electronic apparatus |
-
1976
- 1976-05-31 JP JP6333176A patent/JPS6032969B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS52146858A (en) | 1977-12-06 |
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