JPS633412A - Ceramic capacitor - Google Patents

Ceramic capacitor

Info

Publication number
JPS633412A
JPS633412A JP14753086A JP14753086A JPS633412A JP S633412 A JPS633412 A JP S633412A JP 14753086 A JP14753086 A JP 14753086A JP 14753086 A JP14753086 A JP 14753086A JP S633412 A JPS633412 A JP S633412A
Authority
JP
Japan
Prior art keywords
dielectric
metal cap
protrusions
fitted
ceramic capacitor
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.)
Pending
Application number
JP14753086A
Other languages
Japanese (ja)
Inventor
新田 晃一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP14753086A priority Critical patent/JPS633412A/en
Publication of JPS633412A publication Critical patent/JPS633412A/en
Pending legal-status Critical Current

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  • Ceramic Capacitors (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はセラミックコンデンサ、特に角形誘電体の両端
に嵌着される金属キャンプの形状に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to ceramic capacitors, and more particularly to the shape of metal camps fitted at both ends of a rectangular dielectric.

従来の技術   − 従来、積層コンデンサ等の角形コンデンサにおいては、
その両端に丸形金属キャップを嵌着することによって、
見掛は上丸形コンデンサとし、パイプフィーデング方式
の自動機における製品供給中に詰まりが生じることを回
避し、所定のプリント基板上に一括供給するようにして
いる。
Conventional technology − Conventionally, in rectangular capacitors such as multilayer capacitors,
By fitting round metal caps on both ends,
The capacitor is apparently a top round capacitor, which avoids clogging during product feeding in an automatic pipe-feeding machine, and feeds the product all at once onto a predetermined printed circuit board.

本 明が解決しようとする問題点 ところで、角形コンデンサに丸形金属キャップを嵌着さ
せる場合、嵌合強度を向上させ、かつ、圧入の際にユニ
ットに加わる圧力を吸収させる必要がある。この方策と
して、第4図に示すように、金属キャップaの内周面に
一条の突起部すを設けることが考えられるが、この場合
、誘電体に対して該金属キャップが圧入時に斜めに入り
易く、また嵌着後に外力によって容易に斜めに傾いたり
、また上記突起部すがつぶれ、該金属キャップaが誘電
体から抜は易くなるという問題点が新たに生じる虞があ
る。
Problems to be Solved by the Present Invention When fitting a round metal cap to a rectangular capacitor, it is necessary to improve the fitting strength and absorb the pressure applied to the unit during press-fitting. As a measure against this, it is conceivable to provide a single protrusion on the inner circumferential surface of the metal cap a, as shown in Fig. 4, but in this case, the metal cap enters diagonally into the dielectric when it is press-fitted. In addition, there is a possibility that new problems may occur, such as the metal cap a being easily tilted diagonally by external force after fitting, and the protrusion being crushed, making it easy to remove the metal cap a from the dielectric.

さらに、第5図に示すように、角形の誘電体Cは、金属
キャップaの圧入を容易にするために、通常その角部d
がアール状に形成されており、このアールを大きくとれ
ばとるほどキャップ嵌合時に誘電体Cに加わる衝撃が少
なくなるが、第5図に示すようにアール状の角部dに突
起部すがかかり矢印X方向の回転力が該金属キャップa
に作用した場合、該金属キャップaは誘電体dから容易
に外れるという問題点も生じる虞がある。
Furthermore, as shown in FIG.
is formed in a rounded shape, and the larger the radius is, the less impact is applied to the dielectric C when the cap is fitted. The applied rotational force in the direction of arrow X is applied to the metal cap a.
If this occurs, there is a risk that the metal cap a may easily come off from the dielectric d.

本発明は従来のこのような問題点を解決して、簡単な改
良でもうて、誘電体に安定して嵌合させることのできる
金属キャップを備えたセラミックコンデンサを提供する
ことを目的とする。
SUMMARY OF THE INVENTION An object of the present invention is to solve these conventional problems and provide a ceramic capacitor equipped with a metal cap that can be stably fitted to a dielectric material with simple improvements.

間 点を解決するための手段 上記目的を達成するために、本発明は角形誘電体の両端
に丸形金属キャンプが嵌着されたセラミックコンデンサ
において、上記金属キャップの内周面に複数条の突起部
が形成されている。
Means for Solving the Problems In order to achieve the above object, the present invention provides a ceramic capacitor in which round metal camps are fitted at both ends of a rectangular dielectric, in which a plurality of protrusions are provided on the inner peripheral surface of the metal cap. A section is formed.

作     用 上記構成によれば、金属キャップの内周面に複数条の突
起部が形成されたので、嵌合時において、突起部が誘電
体に確実に圧接し複数条の突起部のために回転方向の力
が加わっても外れにく(、嵌合強度の優れたセラミック
コンデンサを得ることができる。
Effect According to the above structure, since the plurality of protrusions are formed on the inner circumferential surface of the metal cap, the protrusions are securely pressed against the dielectric material during fitting, and rotation is prevented due to the plurality of protrusions. It is possible to obtain a ceramic capacitor that does not come off even when force is applied in the direction (and has excellent fitting strength).

実  施  例 以下、図示の実施例に基づき本発明を詳説する。Example Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

第2図及び第3図は本発明の一実施例としてのセラミッ
クコンデンサであって、角形誘電体1と、該角形誘電体
の両端に嵌着される左右1対の丸形金属キャップ2.2
とからなる。
2 and 3 show a ceramic capacitor as an embodiment of the present invention, which includes a rectangular dielectric 1 and a pair of left and right round metal caps 2 and 2 fitted to both ends of the rectangular dielectric.
It consists of.

上記角形誘電体1は、この実施例では、公知の積層コン
デンサを使用しており、上記誘電体1の両端には外部電
極3,3が付与されている。さらに、該誘電体1は、金
属キャップの嵌着時において、容易に所望の嵌合状態を
得ることができるように角形誘電体1の両端角部4.4
がアール状に形成されてなる。
In this embodiment, a known multilayer capacitor is used as the rectangular dielectric 1, and external electrodes 3, 3 are provided at both ends of the dielectric 1. Further, the dielectric body 1 has corner portions 4 and 4 at both ends of the rectangular dielectric body 1 so that a desired fitted state can be easily obtained when a metal cap is fitted.
is formed in a rounded shape.

しかして、上記丸形金属キャンプ2,2は誘電体1の両
端に形成された上記外部電極3.3に電気的に接続され
るものであり、第1図に示す如く、その内周面に二条の
突起部5,5が形成されている。
The round metal camps 2, 2 are electrically connected to the external electrodes 3.3 formed at both ends of the dielectric 1, and as shown in FIG. Two protrusions 5, 5 are formed.

このように形成された丸形金属キャップ2,2は、第3
図に示す如く、上記二条の突起部5.5によって確実に
水平状に固定され、斜めに嵌着されることがない。又、
二条の突起のため金属キャップ2,2奥側の突起部5が
誘電体1のアール形状の角部4に位置したとしても二条
の突起が有るためキャップに回転方向の力が加わっても
外れにくい。またこの実施例において、上記誘電体1の
角部4,4のアール形状に対応するように丸形金属キャ
ップ2,2の突起部5,5の内接円の径を適宜変化させ
て形成すれば、誘電体1への圧入がスムーズに行えると
ともに、誘電体1にかかる応力を小さくできて、クラッ
ク等の発生率をより低下させることができるものとなる
。つまり、例えば底部側の突起部の内接円径を、開口端
例の突起部の内接円径よりも小さくし、底部側の突起部
がgN体のアール面に当接されるようにしておくがごと
きである。
The round metal caps 2, 2 formed in this way are
As shown in the figure, the two protrusions 5.5 ensure that it is fixed horizontally and will not be fitted diagonally. or,
Due to the two-striped protrusions, even if the protrusion 5 on the back side of the metal caps 2 and 2 is located at the rounded corner 4 of the dielectric 1, it will not come off easily even if a rotational force is applied to the cap. . Further, in this embodiment, the diameter of the inscribed circle of the protrusions 5, 5 of the round metal caps 2, 2 is appropriately changed to correspond to the rounded shape of the corners 4, 4 of the dielectric 1. For example, press-fitting into the dielectric 1 can be performed smoothly, the stress applied to the dielectric 1 can be reduced, and the incidence of cracks and the like can be further reduced. That is, for example, the diameter of the inscribed circle of the protrusion on the bottom side is made smaller than the diameter of the inscribed circle of the protrusion on the open end example, so that the protrusion on the bottom side comes into contact with the rounded surface of the gN body. It's like a long time ago.

尚、本発明は上記実施例に限定されるものでなく、要旨
を逸脱しない範囲において設計変更可能なことは勿論で
ある。誘電体は積層コンデンサに限ることはなく、また
金属キャップの突起部は、二条以上であれば三条、四条
・・・等いくらでもよく多数条にすればそれだけ嵌合時
の安定性が向上する。又、リード線を有したアキシアル
形セラミックコンデンサにも通用出来る。
It should be noted that the present invention is not limited to the above-mentioned embodiments, and it goes without saying that the design can be changed within the scope of the invention. The dielectric material is not limited to a laminated capacitor, and the protrusions of the metal cap can be formed into any number of protrusions, such as three or four protrusions, as long as they are two or more, and the stability during fitting will be improved accordingly. It can also be used for axial type ceramic capacitors with lead wires.

見qos工 以上詳述したように、角形誘電体の両端に丸形金属キャ
ンプが嵌着されたセラミックコンデンサにおいて、本発
明は上記金属キャップの内周面に複数条の突起部を形成
したので、丸形金属キャップが角形誘電体に斜めに嵌合
されることもなく、また嵌合強度も太き(でき、嵌合状
態が)】めて安定する。さらに外力に対しても機械的に
強固になり、電気的性能を損なうことのないセラミック
コンデンサを得ることができる。
As detailed above, in a ceramic capacitor in which round metal camps are fitted to both ends of a rectangular dielectric, the present invention forms a plurality of protrusions on the inner circumferential surface of the metal cap. The round metal cap is not fitted diagonally to the rectangular dielectric body, and the fitting strength is strong (and the fitted state) is stable. Furthermore, it is possible to obtain a ceramic capacitor which is mechanically strong against external forces and whose electrical performance is not impaired.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明に用いる金属キャップの一実施例を示す
拡大断面図、第2図は本発明全体断面図、第3図は第2
図の要部拡大断面図、第4図は金属キャップの従来例を
示す断面図、第5図は従来の問題点の一例を示す要部断
面図である。 1・・・誘電体、2・・・金属キャップ、5・・・突起
部。
FIG. 1 is an enlarged cross-sectional view showing one embodiment of the metal cap used in the present invention, FIG. 2 is a cross-sectional view of the entire present invention, and FIG.
FIG. 4 is a sectional view showing a conventional example of a metal cap, and FIG. 5 is a sectional view showing an example of a conventional problem. DESCRIPTION OF SYMBOLS 1... Dielectric material, 2... Metal cap, 5... Projection part.

Claims (1)

【特許請求の範囲】[Claims] (1)角形誘電体の両端に丸形金属キャップが嵌着され
たセラミックコンデンサにおいて、 上記金属キャップの内周面に複数条の突起部が形成され
たことを特徴とするセラミックコンデンサ。
(1) A ceramic capacitor in which round metal caps are fitted to both ends of a rectangular dielectric, characterized in that a plurality of protrusions are formed on the inner peripheral surface of the metal cap.
JP14753086A 1986-06-24 1986-06-24 Ceramic capacitor Pending JPS633412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14753086A JPS633412A (en) 1986-06-24 1986-06-24 Ceramic capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14753086A JPS633412A (en) 1986-06-24 1986-06-24 Ceramic capacitor

Publications (1)

Publication Number Publication Date
JPS633412A true JPS633412A (en) 1988-01-08

Family

ID=15432394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14753086A Pending JPS633412A (en) 1986-06-24 1986-06-24 Ceramic capacitor

Country Status (1)

Country Link
JP (1) JPS633412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6782775B2 (en) 2000-12-22 2004-08-31 Toyoda Iron Works Co., Ltd. Vehicle pedal device wherein non-operated position of operating portion is adjustable in longitudinal direction of vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6782775B2 (en) 2000-12-22 2004-08-31 Toyoda Iron Works Co., Ltd. Vehicle pedal device wherein non-operated position of operating portion is adjustable in longitudinal direction of vehicle
US7047837B2 (en) 2000-12-22 2006-05-23 Toyoda Iron Works Co., Ltd. Vehicle pedal device wherein non-operated position of operating portion is adjustable in longitudinal direction of vehicle

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