JPH0311944Y2 - - Google Patents

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Publication number
JPH0311944Y2
JPH0311944Y2 JP6336184U JP6336184U JPH0311944Y2 JP H0311944 Y2 JPH0311944 Y2 JP H0311944Y2 JP 6336184 U JP6336184 U JP 6336184U JP 6336184 U JP6336184 U JP 6336184U JP H0311944 Y2 JPH0311944 Y2 JP H0311944Y2
Authority
JP
Japan
Prior art keywords
terminal
terminals
conductive rubber
base
ladder
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
Application number
JP6336184U
Other languages
Japanese (ja)
Other versions
JPS60174324U (en
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 filed Critical
Priority to JP6336184U priority Critical patent/JPS60174324U/en
Publication of JPS60174324U publication Critical patent/JPS60174324U/en
Application granted granted Critical
Publication of JPH0311944Y2 publication Critical patent/JPH0311944Y2/ja
Granted legal-status Critical Current

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  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Description

【考案の詳細な説明】 この考案はラダー形圧電フイルタ、更に詳しく
は、離れた位置にある二つの圧電エレメントを電
気的に接続するための構造に特徴のあるラダー形
圧電フイルタに関するものである。
[Detailed Description of the Invention] This invention relates to a ladder-type piezoelectric filter, and more specifically, to a ladder-type piezoelectric filter characterized by a structure for electrically connecting two piezoelectric elements located at separate positions.

ラダー形圧電フイルタは第1図の等価回路で示
すように2端子形共振子を梯子形に組み合わすこ
とによつて構成されている。
A ladder-type piezoelectric filter is constructed by combining two-terminal resonators in a ladder shape, as shown in the equivalent circuit of FIG.

第2図は上記ラダー形圧電フイルタの具体的な
組立構造を示しており、入力端子1と内部接続端
子の一種である中間端子2、アース端子3、出力
端子4、内部接続端子の一種である端部端子5の
各々の間にセラミツク基板の両面に電極を設けた
圧電エレメント6を介在させ、これらを順次重ね
合せた状態でケース7内に収納し、ばね端子8で
各端子と圧電エレメント6を圧着さ、ケース7の
開口部をベース9で閉鎖した後、溶融合成樹脂を
用いたシール材10で封口して形成されている。
Figure 2 shows the specific assembly structure of the ladder type piezoelectric filter, which includes an input terminal 1, an intermediate terminal 2 which is a type of internal connection terminal, a ground terminal 3, an output terminal 4, and a type of internal connection terminal. A piezoelectric element 6 having electrodes provided on both sides of a ceramic substrate is interposed between each of the end terminals 5, and these are stored in a case 7 in a stacked state, and each terminal is connected to the piezoelectric element 6 by a spring terminal 8. After the opening of the case 7 is closed with the base 9, the opening of the case 7 is sealed with a sealing material 10 made of molten synthetic resin.

上記ラダー形圧電フイルタは、中間端子6と端
部端子5を電気的に接続し、直列圧電エレメント
相互及び並列圧電エレメントを導通させている。
In the ladder type piezoelectric filter, the intermediate terminal 6 and the end terminal 5 are electrically connected, and the series piezoelectric elements and the parallel piezoelectric elements are electrically connected to each other.

従来、中間端子2と端部端子5の接続構造は、
第2図と第3図に示すように、中継部11を介し
て中間端子2と端部端子5を連成し、中継部11
の両端を折曲げたコ字状端子に形成していた。
Conventionally, the connection structure between the intermediate terminal 2 and the end terminal 5 is as follows.
As shown in FIGS. 2 and 3, the intermediate terminal 2 and the end terminal 5 are connected via the relay section 11, and
It was formed into a U-shaped terminal with both ends bent.

ところで、中間端子2と端部端子5の間に組込
む圧電エレメント6や他の端子の板厚及び枚数
を、フイルタ性能に応じて種々変更させたい場合
がある。
Incidentally, there are cases where it is desired to change the plate thickness and number of the piezoelectric element 6 and other terminals incorporated between the intermediate terminal 2 and the end terminal 5 depending on the filter performance.

しかし、従来のように、中間端子2と端部端子
5を中継部11で一体化したコ字形構造では、中
間端子2と端部端子5の対応面間の間隔Lが一定
化する。
However, in the conventional U-shaped structure in which the intermediate terminal 2 and the end terminal 5 are integrated at the relay part 11, the distance L between the corresponding surfaces of the intermediate terminal 2 and the end terminal 5 is constant.

このため、圧電エレメントの板厚や枚数の変化
に対応することができず、間隔Lの異なる種々の
コ字形端子を製作しなければならないという不都
合がある。
For this reason, it is not possible to respond to changes in the plate thickness or number of piezoelectric elements, and there is a disadvantage that various U-shaped terminals with different spacings L must be manufactured.

この考案は、上記のような不都合を解消するた
めになされたものであり、端子の間隔に自由度が
あり、圧電エレメントや他の端子の条件が変更さ
れてもこれに対応することができるラダー形圧電
フイルタを提供することを目的とする。
This idea was made to solve the above-mentioned problems, and it is a ladder that has a degree of freedom in the spacing of the terminals and can accommodate changes in the conditions of the piezoelectric element and other terminals. The purpose of the present invention is to provide a shaped piezoelectric filter.

この考案の構成は、中間端子及び端部端子を分
離独立させて各々に好ましくは先鋭突起を設け、
ケースの開口部に嵌合するベースに突起の貫通す
る透孔と、この透孔を覆うように貼付けた導電性
ゴムとを設け、中間端子及び端部端子を導電性ゴ
ムに突起を突き差すことによつて電気的に接続す
るようにしたものである。
The configuration of this invention is such that the intermediate terminal and the end terminal are separated and independent, each preferably provided with a sharp protrusion,
A base that fits into the opening of the case is provided with a through hole through which the protrusion passes, and a conductive rubber pasted to cover the through hole, and the intermediate terminal and end terminal are inserted into the conductive rubber with the protrusion. The electrical connection is made by

以下、この考案の一実施例を添付図面の第4図
ないし第6図にもとづいて説明する。
An embodiment of this invention will be described below with reference to FIGS. 4 to 6 of the accompanying drawings.

ラダー形圧電フイルタの基本的な構造は、第2
図で述べた通りであり、第2図と同一部分は同一
符号を付してその説明を省略する。
The basic structure of a ladder-type piezoelectric filter is
This is as described in the figures, and the same parts as in FIG. 2 are given the same reference numerals and their explanation will be omitted.

この考案の圧電フイルタは、中間端子2aと端
部端子5aを第5図のように分離独立させると共
に、両端子2a,5aの上縁に先鋭突起12が
各々突設されている。
In the piezoelectric filter of this invention, an intermediate terminal 2a and an end terminal 5a are separated and independent as shown in FIG. 5, and sharp projections 12 are provided protruding from the upper edges of both terminals 2a and 5a, respectively.

ケース7の口部に嵌合するベース9は硬質の絶
縁性プレートを用いて形成され、中間端子2aの
先鋭突起12と対応する位置及び端部端子5aの
突起12と対応する位置に各々透孔13,14が
設けられている。
The base 9 that fits into the mouth of the case 7 is formed using a hard insulating plate, and has through holes at positions corresponding to the sharp projections 12 of the intermediate terminal 2a and positions corresponding to the projections 12 of the end terminals 5a. 13 and 14 are provided.

この透孔13,14は第6図のように、各端子
と圧電エレメントの重なり方向に沿つて長く形成
され、中間端子2aと端部端子5aの間隔変更を
許容している。
As shown in FIG. 6, the through holes 13 and 14 are formed long along the overlapping direction of each terminal and the piezoelectric element, allowing the interval between the intermediate terminal 2a and the end terminal 5a to be changed.

上記ベース9の表面には両端が両透孔13,1
4を覆う長さ及び幅の導電性ゴム15が貼付けら
れ、中間端子2a及び端部端子5aの突起12,
12を導電性ゴム15に突き差すことにより両端
子の電気的な接続が行なえるようになつている。
The surface of the base 9 has both through holes 13 and 1 at both ends.
A conductive rubber 15 having a length and width that covers 4 is attached, and the protrusions 12 of the intermediate terminal 2a and the end terminal 5a,
By pushing 12 into conductive rubber 15, electrical connection between both terminals can be established.

なお、ベース9には第6図に示すように、入力
端子1のリード端子引出孔16と、出力端子3の
リード端子引出孔17及びアース端子4のリード
端子引出孔18が設けられている。
As shown in FIG. 6, the base 9 is provided with a lead terminal hole 16 for the input terminal 1, a lead terminal hole 17 for the output terminal 3, and a lead terminal hole 18 for the ground terminal 4.

この考案の圧電フイルタは上記のような構成で
あり、ケース7の内部に各端子1,2a,3,
4,5aと、各端子間に介在させる圧電エレメン
ト6及びばね端子8とを組込む。
The piezoelectric filter of this invention has the above-mentioned structure, and each terminal 1, 2a, 3,
4, 5a, and a piezoelectric element 6 and a spring terminal 8 interposed between the respective terminals.

このとき、中間端子2aと端部端子5aは上縁
に設けた先鋭突起12,12が上向きに起立して
いる。
At this time, the intermediate terminal 2a and the end terminal 5a have sharp protrusions 12, 12 provided on the upper edges thereof standing upward.

次に、ケース7の口部内にベース9を嵌挿し、
透孔13,14から導電性ゴム15に先鋭突起1
2,12を各々突差し、この後口部のベース上に
溶融樹脂を用いたシール材10を充填して封口す
れば組立が完了し、中間端子2aと端部端子5a
は導電性ゴム15を介して電気的に接続されるこ
とになる。
Next, insert the base 9 into the mouth of the case 7,
A sharp protrusion 1 is formed from the through holes 13 and 14 to the conductive rubber 15.
2 and 12 respectively, and fill the base of the rear opening part with a sealing material 10 made of molten resin to seal it, the assembly is completed, and the intermediate terminal 2a and the end terminal 5a
are electrically connected via the conductive rubber 15.

なお図示のラダー形圧電フイルタは4エレメン
ト構造を示したがコ字状端子を使用した多数エレ
メントのラダー形圧電フイルタにも適用できる。
Although the illustrated ladder-type piezoelectric filter has a four-element structure, it can also be applied to a multi-element ladder-type piezoelectric filter using U-shaped terminals.

以上のように、この考案によると中間端子と端
部端子を分離独立させて各々に突起を設け、ベー
スには突起の貫通する透孔と、透孔を覆うよう貼
合せた導電性ゴムとを設け、突起を導電性ゴムに
突き差すことによつて両端子の電気的な接続を行
なうようにしたので、両端子の間隔を自由に設定
することができ、部品条件の変更にも端子構造を
変更することなく対応できるようになる。
As described above, according to this invention, the intermediate terminal and the end terminal are separated and independent, and a protrusion is provided on each, and the base has a through hole through which the protrusion passes, and a conductive rubber bonded to cover the through hole. Since the electrical connection between both terminals is made by inserting a protrusion into the conductive rubber, the spacing between both terminals can be set freely, and the terminal structure can be changed even when changing component conditions. This can be done without any changes.

またケースの内部に対する端子の組込みが容易
になり、圧電フイルタの自動組立が実現できる。
In addition, the terminals can be easily assembled into the case, and the piezoelectric filter can be automatically assembled.

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

第1図はラダー形圧電フイルタの等価回路図、
第2図は従来の圧電フイルタを示す縦断面図、第
3図は同上に用いている中間端子と端部端子の構
造を示す斜視図、第4図はこの考案に係る圧電フ
イルタの縦断面図、第5図は同上に用いる中間端
子と端部端子の斜視図、第6図は同じく同上に用
いるベースの斜視図である。 2a……中間端子、5a……端部端子、6……
圧電エレメント、7……ケース、8……ばね端
子、9……ベース、10……シール材、12……
先鋭突起、13,14……透孔、15……導電性
ゴム。
Figure 1 is an equivalent circuit diagram of a ladder type piezoelectric filter.
Fig. 2 is a longitudinal sectional view showing a conventional piezoelectric filter, Fig. 3 is a perspective view showing the structure of the intermediate terminal and end terminal used in the same, and Fig. 4 is a longitudinal sectional view of the piezoelectric filter according to this invention. , FIG. 5 is a perspective view of an intermediate terminal and an end terminal used in the same, and FIG. 6 is a perspective view of a base used in the same. 2a...middle terminal, 5a...end terminal, 6...
Piezoelectric element, 7... Case, 8... Spring terminal, 9... Base, 10... Sealing material, 12...
Sharp projections, 13, 14... Through holes, 15... Conductive rubber.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 少なくとも入力端子、アース端子、出力端子一
対の内部接続端子および圧電エレメントをケース
内に収納し、ケースの開口部をベースで覆つたラ
ダー形圧電フイルタにおいて、一対の内部接続端
子を分離独立させて各々に突起を設け、ケース内
に嵌挿したベースにおいて、内部接続端子と対応
する位置に突起の貫通する透孔を設け、前記ベー
スの表面に両透孔を覆う長さの導電性ゴムを貼付
け、内部接続端子の突起を透孔から導電性ゴムに
突き差し、導電性ゴムを介して両端子を電気的に
接続したことを特徴とするラダー形圧電フイル
タ。
In a ladder-type piezoelectric filter, in which at least an input terminal, a ground terminal, a pair of output terminals, internal connection terminals, and a piezoelectric element are housed in a case, and the opening of the case is covered with a base, the pair of internal connection terminals are separated and independent. a base fitted into the case, a through hole through which the projection passes through at a position corresponding to the internal connection terminal, and conductive rubber of a length covering both through holes is pasted on the surface of the base; A ladder-type piezoelectric filter characterized in that a protrusion of an internal connection terminal is inserted into a conductive rubber through a through hole, and both terminals are electrically connected via the conductive rubber.
JP6336184U 1984-04-27 1984-04-27 Ladder type piezoelectric filter Granted JPS60174324U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6336184U JPS60174324U (en) 1984-04-27 1984-04-27 Ladder type piezoelectric filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6336184U JPS60174324U (en) 1984-04-27 1984-04-27 Ladder type piezoelectric filter

Publications (2)

Publication Number Publication Date
JPS60174324U JPS60174324U (en) 1985-11-19
JPH0311944Y2 true JPH0311944Y2 (en) 1991-03-22

Family

ID=30593430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6336184U Granted JPS60174324U (en) 1984-04-27 1984-04-27 Ladder type piezoelectric filter

Country Status (1)

Country Link
JP (1) JPS60174324U (en)

Also Published As

Publication number Publication date
JPS60174324U (en) 1985-11-19

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