JPH0749857Y2 - Ceramic oscillator capacitor mounting structure - Google Patents
Ceramic oscillator capacitor mounting structureInfo
- Publication number
- JPH0749857Y2 JPH0749857Y2 JP1989150469U JP15046989U JPH0749857Y2 JP H0749857 Y2 JPH0749857 Y2 JP H0749857Y2 JP 1989150469 U JP1989150469 U JP 1989150469U JP 15046989 U JP15046989 U JP 15046989U JP H0749857 Y2 JPH0749857 Y2 JP H0749857Y2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- terminals
- electrodes
- ceramic oscillator
- main surface
- 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 - Fee Related
Links
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、各種のデジタルシステムにおいてクロック信
号発生回路などに使用されるコンデンサ内蔵型のセラミ
ック発振子に係り、特にそのコンデンサの取付構造に関
するものである。[Detailed Description of the Invention] [Industrial application] The present invention relates to a ceramic oscillator with a built-in capacitor, which is used for a clock signal generation circuit in various digital systems, and more particularly to a structure for mounting the capacitor. Is.
クロック信号発生回路は、一般に第８図のようにインバ
ータ２と圧電振動子10と２個のコンデンサC1・C2とで構
成される。そして、組み込みの容易さや実装密度の向上
を図るために、圧電振動子10とコンデンサC1・C2を一つ
の回路素子に組み込んだコンデンサ内蔵型のセラミック
発振子が用いられている。The clock signal generating circuit is generally composed of an inverter 2, a piezoelectric vibrator 10 and two capacitors C 1 and C 2 as shown in FIG. A ceramic oscillator with a built-in capacitor is used in which the piezoelectric vibrator 10 and the capacitors C 1 and C 2 are incorporated into one circuit element in order to facilitate the incorporation and improve the packaging density.
第10図は、コンデンサ内蔵型のセラミック発振子に組み
込まれる従来のチップ状のコンデンサ20を示すものであ
る。コンデンサ20は、誘電体板25の主表面に中央部で分
離された二つの電極21・22を有し、他方の主表面全体に
は電極21・22と対向する共通電極23が設けられている。FIG. 10 shows a conventional chip-shaped capacitor 20 incorporated in a ceramic oscillator with a built-in capacitor. The capacitor 20 has two electrodes 21 and 22 separated at the central portion on the main surface of the dielectric plate 25, and a common electrode 23 facing the electrodes 21 and 22 is provided on the entire other main surface. .
このようなコンデンサ20は、例えば第９図のようにセラ
ミック発振子に組み込まれていた。Such a capacitor 20 is incorporated in a ceramic oscillator as shown in FIG. 9, for example.
10は短冊状のエネルギー閉じ込み型圧電振動子であり、
その上下面には、一部が圧電板15を介して対向し一端が
それぞれ圧電板15の異なる端部まで導出された電極11・
12が設けられている。圧電振動子10は、その電極11・12
がそれぞれ異なる端子33・31に半田付けされている。ま
た、コンデンサ20は、その主表面を端子31・32・33の長
手方向に平行にして、電極21・22がそれぞれ端子31・33
に半田付けされ、共通電極が端子32に半田付けされてい
る。そして圧電振動子10の振動部周囲に空隙を残して外
装樹脂４が本体を覆っている。なお、その符号６は半田
を示している。10 is a strip-shaped energy confinement type piezoelectric vibrator,
On the upper and lower surfaces thereof, electrodes 11 that are partially opposed to each other through the piezoelectric plate 15 and one ends of which are led to different end portions of the piezoelectric plate 15, respectively.
Twelve are provided. The piezoelectric vibrator 10 has its electrodes 11 and 12
Are soldered to different terminals 33, 31 respectively. Further, the capacitor 20 has its main surface parallel to the longitudinal direction of the terminals 31, 32, 33, and the electrodes 21, 22 are respectively connected to the terminals 31, 33.
, And the common electrode is soldered to the terminal 32. The exterior resin 4 covers the main body while leaving a space around the vibrating portion of the piezoelectric vibrator 10. The reference numeral 6 indicates solder.
従来のセラミック発振子の構成は、コンデンサ20の裏表
に端子31・32・33を接合する構造なので組立作業性が悪
いばかりでなく、コンデンサ20の主表面が端子31・32・
33の長手方向に平行であるため製品全体の高さが大きく
なってしまう欠点があった。また、端子の素材としてリ
ードフレーム30を用いるためコスト高になる問題があっ
た。The structure of the conventional ceramic oscillator has a structure in which the terminals 31, 32, and 33 are joined to the front and back of the capacitor 20, so that not only the assembly workability is poor, but the main surface of the capacitor 20 has the terminals 31, 32, and 33.
Since it is parallel to the longitudinal direction of 33, there is a drawback that the height of the whole product becomes large. Further, since the lead frame 30 is used as the material of the terminal, there is a problem that the cost becomes high.
本考案は、誘電体板の一方の主表面に中央部で分離され
た第１、第２の電極が形成され、誘電体板の他方の主表
面の両端部を除く部分に第１、第２の電極と対向する共
通電極が設けられてなるコンデンサと、互いに平行で側
面の一部が同一平面上に位置する３本の直線状の端子を
備え、３本の端子の同一平面上にある側の側面に、誘電
体板の一側面を対向させ、共通電極を中央の端子に電気
的に接続固定し、第１、第２の電極をそれぞれ両端の端
子に電気的に接続固定したセラミック発振子用コンデン
サの取付構造を特徴とする。According to the present invention, the first and second electrodes separated at the central portion are formed on one main surface of the dielectric plate, and the first and second electrodes are formed on the other main surface of the dielectric plate except both ends. And a capacitor provided with a common electrode that faces the electrode of, and three linear terminals that are parallel to each other and have part of their side surfaces located on the same plane. The side of the three terminals that are on the same plane. A ceramic oscillator in which one side surface of the dielectric plate is opposed to the side surface of the substrate, the common electrode is electrically connected and fixed to the central terminal, and the first and second electrodes are electrically connected and fixed to the terminals at both ends. It is characterized by the mounting structure of the capacitor for use.
第１図は本考案におけるコンデンサ60の一実施例を示す
ものである。コンデンサ60は、誘電体板65の主表面に中
央部で分離された二つの電極61・62を有し、両端部を除
く他方の主表面と対向する共通電極63が設けられてい
る。FIG. 1 shows an embodiment of the capacitor 60 according to the present invention. The capacitor 60 has two electrodes 61 and 62 separated at the central portion on the main surface of a dielectric plate 65, and a common electrode 63 facing the other main surface except both ends is provided.
第２図〜第６図はこのコンデンサ60の一使用例を示すも
ので、前述の従来例と共通な部分には、これらの図にお
いても同一符号を付してある。2 to 6 show an example of use of the capacitor 60, and portions common to the above-described conventional example are designated by the same reference numerals in these figures.
第２図はコンデンサ60を組み込んだセラミック発振子の
正面図、第３図はその背面図である。３本の端子51、5
2、53を互いに平行に植設した絶縁材からなるベース40
の正面側には、これらの端子51、52、53の一部を内部に
露出させた溝41が形成してある。一方、ベース40の背面
側の上端には、第３図に示すように端子51、52、53の一
部を内部に露出させた細長い切欠部42が形成してある。
３本の端子51、52、53は共に丸棒状の線材で構成してあ
り、中央の端子52は両端の端子51、53よりも直径を小さ
く選んである。また、３本の端子51、52、53は、第４図
から明らかなように側面の一部すなわち切欠部42内に露
出した側が同一平面上に位置するようにしてベース40を
貫通させてある。FIG. 2 is a front view of the ceramic oscillator incorporating the capacitor 60, and FIG. 3 is a rear view thereof. 3 terminals 51, 5
Base 40 made of insulating material in which 2 and 53 are planted in parallel with each other
A groove 41 exposing a part of the terminals 51, 52, 53 inside is formed on the front side of the. On the other hand, at the upper end on the back side of the base 40, as shown in FIG. 3, an elongated notch 42 is formed in which some of the terminals 51, 52, 53 are exposed inside.
The three terminals 51, 52, 53 are all made of round rod-shaped wire, and the central terminal 52 is selected to have a smaller diameter than the terminals 51, 53 at both ends. Further, as is apparent from FIG. 4, the three terminals 51, 52 and 53 are penetrated through the base 40 so that a part of the side surface, that is, the side exposed in the notch 42 is located on the same plane. .
切欠部42の内部には、第１図のようなチップ状のコンデ
ンサ60を、主表面が上または下を向いた方向、すなわ
ち、側面が端子51、52、53に対向する向きに取付けてあ
る。第３図から明らかなように、切欠部42の両端にはコ
ンデンサ60の厚みよりも僅かに大きい凹部42aが形成し
てあり、これらの凹部42aにコンデンサ60の両端をそれ
ぞれ嵌め込んである。コンデンサ60の電極61、62、63
は、それぞれ端子51、53、52の同一平面上にある側の側
面に、図示しない半田または導電性接着剤等で導通をと
った状態に固定してある。コンデンサ60の中央と両端部
においては、いずれか一つの電極61、62、63しか存在し
ない構造なので、他の電極に半田が付着することなく、
コンデンサ60の一方の面での接続が行える。Inside the notch 42, a chip-shaped capacitor 60 as shown in FIG. 1 is mounted in a direction in which the main surface faces upward or downward, that is, the side surface faces the terminals 51, 52, 53. . As is apparent from FIG. 3, recesses 42a slightly larger than the thickness of the capacitor 60 are formed at both ends of the notch 42, and both ends of the capacitor 60 are fitted into these recesses 42a. Electrodes 61, 62, 63 of capacitor 60
Are fixed to the side surfaces of the terminals 51, 53, and 52 on the same plane by means of solder, a conductive adhesive, or the like (not shown) in a conductive state. At the center and both ends of the capacitor 60, since only one of the electrodes 61, 62, 63 exists, solder does not adhere to other electrodes,
Connection can be made on one side of the capacitor 60.
一方、溝41の内部には圧電振動子10が取付けてある。圧
電振動子10もコンデンサ60と同じく主表面が上または下
を向いた方向、すなわち、側面が端子51、52、53に対向
する向きに取付けてある。そして、電極11、12が、溝41
の幅広部41aにおいて図示しない半田等で電気的な接続
をとりながら両端の端子53、51にそれぞれ固定されてい
る。第５図に示すように、径寸法の小さい中央の端子52
と圧電振動子10との間には、圧電振動子10の振動を妨げ
ないだけの間隙が形成してある。On the other hand, the piezoelectric vibrator 10 is attached inside the groove 41. Similarly to the capacitor 60, the piezoelectric vibrator 10 is also mounted such that the main surface thereof faces upward or downward, that is, the side surface faces the terminals 51, 52, 53. Then, the electrodes 11 and 12 are
The wide portion 41a is fixed to the terminals 53 and 51 at both ends while making electrical connection with solder or the like (not shown). As shown in FIG. 5, the central terminal 52 having a small diameter dimension
A space is formed between the piezoelectric vibrator 10 and the piezoelectric vibrator 10 so as not to interfere with the vibration of the piezoelectric vibrator 10.
そして、圧電振動子10の中央付近の振動部周囲に空隙を
残して、エポキシ樹脂等の外装樹脂70が本体を覆ってい
る。An exterior resin 70 such as an epoxy resin covers the main body, leaving a space around the vibrating portion near the center of the piezoelectric vibrator 10.
第６図は本実施例における端子51・52・53と圧電振動子
10およびコンデンサ60の互いの位置関係を示すものであ
る。FIG. 6 shows the terminals 51, 52, 53 and the piezoelectric vibrator in this embodiment.
10 shows the positional relationship between 10 and the capacitor 60 with respect to each other.
丸棒状の線材からなる端子は、板状の端子に比べてはる
かに安価であるばかりでなく、自由な方向に曲げること
ができ、プリント基板に装着してからの切断も容易であ
る等の利点がある。本考案によるコンデンサを用いたセ
ラミック発振子は、同一平面上に並んだ３本の端子にコ
ンデンサの側面を接合できる構造なので、このような丸
棒状の端子を用いた構成とすることができる。すなわち
第７図のように長い端子用線材51′・52′・53′に、ベ
ース40を所定の間隔でモールド成形する方法によって、
端子51・52・53とベース40を簡単に組み立てることがで
きる。Terminals made of round bar wire are not only much cheaper than plate terminals, but they can be bent in any direction and are easy to cut after mounting them on the printed circuit board. There is. Since the ceramic oscillator using the capacitor according to the present invention has a structure in which the side surface of the capacitor can be joined to three terminals arranged on the same plane, such a round bar terminal can be used. That is, as shown in FIG. 7, by the method of molding the base 40 on the long terminal wire 51 ', 52', 53 'at a predetermined interval,
The terminals 51, 52, 53 and the base 40 can be easily assembled.
なお、端子は丸棒状に限らす、角棒状や板状であっても
よい。The terminal is not limited to the round bar shape, and may be a rectangular bar shape or a plate shape.
本考案によれば、コンデンサの一側面も端子に接続でき
るので、組立工数が少なくなるうえ、接続状態の検査確
認も容易となる。また、セラミック発振子全体の低背化
を実現できるのに加え、リードフレームの代わりに安価
な棒状材料で端子を構成できる効果もある。According to the present invention, since one side of the capacitor can be connected to the terminal, the number of assembling steps can be reduced and the connection state can be easily checked and confirmed. Further, in addition to the fact that the height of the whole ceramic resonator can be reduced, there is an effect that the terminal can be constituted by an inexpensive rod-shaped material instead of the lead frame.
第１図は本考案におけるコンデンサの一実施例を示す拡
大斜視図、第２図は同コンデンサを組み込んだセラミッ
ク発振子の一実施例を示す正面図、第３図はその背面
図、第４図は平面図、第５図は第２図のＡ−Ａ線断面
図、第６図は端子と圧電振動子とコンデンサの位置関係
を示す平面図、第７図は端子とベースの組立工程の説明
図、第８図はクロック信号発生回路の回路図、第９図は
従来のセラミック発振子の正面図、第10図は従来のコン
デンサの拡大斜視図である。 10……圧電振動子 51・52・53……端子 60……コンデンサ 61・62・63……電極 65……誘電体板FIG. 1 is an enlarged perspective view showing an embodiment of the capacitor according to the present invention, FIG. 2 is a front view showing an embodiment of a ceramic oscillator incorporating the same capacitor, FIG. 3 is a rear view thereof, and FIG. Is a plan view, FIG. 5 is a cross-sectional view taken along the line AA of FIG. 2, FIG. 6 is a plan view showing the positional relationship between terminals, piezoelectric vibrators and capacitors, and FIG. 7 is an explanation of the assembly process of terminals and bases. FIG. 8 is a circuit diagram of a clock signal generating circuit, FIG. 9 is a front view of a conventional ceramic oscillator, and FIG. 10 is an enlarged perspective view of a conventional capacitor. 10 …… Piezoelectric vibrator 51 ・ 52 ・ 53 …… Terminal 60 …… Capacitor 61 ・ 62 ・ 63 …… Electrode 65 …… Dielectric plate
Claims (1)
れた第１、第２の電極が形成され、誘電体板の他方の主
表面の両端部を除く部分に該第１、第２の電極と対向す
る共通電極が設けられてなるコンデンサと、互いに平行
で側面の一部が同一平面上に位置する３本の直線状の端
子を備え、３本の端子の同一平面上にある側の側面に、
誘電体板の一側面を対向させ、共通電極を中央の端子に
電気的に接続固定し、第１、第２の電極をそれぞれ両端
の端子に電気的に接続固定したことを特徴とするセラミ
ック発振子用コンデンサの取付構造。1. A first and second electrodes separated at a central portion are formed on one main surface of a dielectric plate, and the first and second electrodes are formed on a portion of the other main surface of the dielectric plate excluding both ends. A capacitor provided with a common electrode facing the second electrode, and three linear terminals parallel to each other and having part of their side surfaces located on the same plane are provided on the same plane of the three terminals. On one side,
Ceramic oscillation characterized in that one side surface of the dielectric plate is opposed, the common electrode is electrically connected and fixed to the central terminal, and the first and second electrodes are electrically connected and fixed to the terminals at both ends. Mounting structure for the child capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989150469U JPH0749857Y2 (en) | 1989-12-27 | 1989-12-27 | Ceramic oscillator capacitor mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989150469U JPH0749857Y2 (en) | 1989-12-27 | 1989-12-27 | Ceramic oscillator capacitor mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0390122U JPH0390122U (en) | 1991-09-13 |
| JPH0749857Y2 true JPH0749857Y2 (en) | 1995-11-13 |
Family
ID=31696816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989150469U Expired - Fee Related JPH0749857Y2 (en) | 1989-12-27 | 1989-12-27 | Ceramic oscillator capacitor mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749857Y2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6156503A (en) * | 1984-08-27 | 1986-03-22 | Murata Mfg Co Ltd | Composite element |
| JPS62241415A (en) * | 1986-04-14 | 1987-10-22 | Matsushita Electric Ind Co Ltd | Piezoelectric vibrator |
| JPH0174625U (en) * | 1987-11-09 | 1989-05-19 | ||
| JPH01119213U (en) * | 1988-02-05 | 1989-08-11 | ||
| JPH0290523U (en) * | 1988-12-28 | 1990-07-18 |
-
1989
- 1989-12-27 JP JP1989150469U patent/JPH0749857Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0390122U (en) | 1991-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |