JPH0255732U - - Google Patents

Info

Publication number
JPH0255732U
JPH0255732U JP13588888U JP13588888U JPH0255732U JP H0255732 U JPH0255732 U JP H0255732U JP 13588888 U JP13588888 U JP 13588888U JP 13588888 U JP13588888 U JP 13588888U JP H0255732 U JPH0255732 U JP H0255732U
Authority
JP
Japan
Prior art keywords
filter
resin layer
insulating resin
case
opening 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.)
Granted
Application number
JP13588888U
Other languages
Japanese (ja)
Other versions
JPH0619214Y2 (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 JP1988135888U priority Critical patent/JPH0619214Y2/en
Publication of JPH0255732U publication Critical patent/JPH0255732U/ja
Application granted granted Critical
Publication of JPH0619214Y2 publication Critical patent/JPH0619214Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Description

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

第１図は本考案の一実施例を示す縦断側面図、
第２図は同要部を示す縦断側面図、第３図はプリ
ント配線基板Ｐへの実装状態を示す斜視図、第４
図はラダー型圧電フイルタの等価回路図であつて
、Ａは逆Ｌ接続型、Ｂは多段接続型を示す。また
第５図は従来構成の欠点を示す一部の縦断側面図
である。 １……直列枝圧電共振子、２……並列枝圧電共
振子、３……入力端子板、３ｂ……脚部、４……
出力端子板、４ｂ……脚部、８……金属製ケース
、８ａ……開口面、８ｂ……接地脚部、９……絶
縁樹脂層。 FIG. 1 is a vertical side view showing an embodiment of the present invention;
Fig. 2 is a vertical side view showing the main parts, Fig. 3 is a perspective view showing the mounting state on the printed wiring board P, and Fig. 4 is a vertical side view showing the main parts.
The figure is an equivalent circuit diagram of a ladder type piezoelectric filter, where A shows an inverted L connection type and B shows a multistage connection type. Moreover, FIG. 5 is a partial vertical side view showing the drawbacks of the conventional structure. 1... Series branch piezoelectric resonator, 2... Parallel branch piezoelectric resonator, 3... Input terminal board, 3b... Leg, 4...
Output terminal board, 4b...leg, 8...metal case, 8a...opening surface, 8b...ground leg, 9...insulating resin layer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数の圧電共振子と、該共振子の振動節部に当
接して電気的機械的に挾持する複数の端子板と、
所定のフイルタ回路を構成するための適宜箇所に
介挿される絶縁板と、これら部品を縦列に収納す
ると共に開口面より各端子板の脚部を外部に導出
するケースと、該ケースの開口面を略面一状に封
塞する絶縁樹脂層とからなり、各端子板の脚部を
クランク状に折曲してフイルタ本体をサーフエイ
スマウント型式でプリント基板に実装されるもの
において、上記絶縁樹脂層が弾性充填材からなる
ことを特徴とするラダー型圧電フイルタ。 a plurality of piezoelectric resonators; a plurality of terminal plates that contact and electrically and mechanically clamp the vibration nodes of the resonators;
An insulating plate inserted at appropriate locations to configure a predetermined filter circuit, a case that stores these components in a vertical line and leads the legs of each terminal board to the outside from an opening surface, and an opening surface of the case. The insulating resin layer is formed of an insulating resin layer that is sealed almost flush, and the leg of each terminal board is bent into a crank shape so that the filter body is mounted on a printed circuit board in a surface mount type. A ladder type piezoelectric filter characterized in that the filter is made of an elastic filler.
JP1988135888U 1988-10-17 1988-10-17 Ladder type piezoelectric filter Expired - Lifetime JPH0619214Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988135888U JPH0619214Y2 (en) 1988-10-17 1988-10-17 Ladder type piezoelectric filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988135888U JPH0619214Y2 (en) 1988-10-17 1988-10-17 Ladder type piezoelectric filter

Publications (2)

Publication Number Publication Date
JPH0255732U true JPH0255732U (en) 1990-04-23
JPH0619214Y2 JPH0619214Y2 (en) 1994-05-18

Family

ID=31395890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988135888U Expired - Lifetime JPH0619214Y2 (en) 1988-10-17 1988-10-17 Ladder type piezoelectric filter

Country Status (1)

Country Link
JP (1) JPH0619214Y2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH054624U (en) * 1991-06-27 1993-01-22 京セラ株式会社 Ladder type filter
JPH054622U (en) * 1991-06-27 1993-01-22 京セラ株式会社 Ladder type filter
JPH054623U (en) * 1991-06-27 1993-01-22 京セラ株式会社 Ladder type filter
JPH0528124U (en) * 1991-09-21 1993-04-09 日本特殊陶業株式会社 Piezoelectric filter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548438A (en) * 1977-06-21 1979-01-22 Matsushita Electric Ind Co Ltd Electronic parts using ceramic resonator
JPS5848817U (en) * 1981-09-30 1983-04-02 松下電工株式会社 roofing material
JPS5924181U (en) * 1982-08-06 1984-02-15 株式会社安西製作所 color sorter
JPS6364116U (en) * 1986-10-15 1988-04-27

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548438A (en) * 1977-06-21 1979-01-22 Matsushita Electric Ind Co Ltd Electronic parts using ceramic resonator
JPS5848817U (en) * 1981-09-30 1983-04-02 松下電工株式会社 roofing material
JPS5924181U (en) * 1982-08-06 1984-02-15 株式会社安西製作所 color sorter
JPS6364116U (en) * 1986-10-15 1988-04-27

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH054624U (en) * 1991-06-27 1993-01-22 京セラ株式会社 Ladder type filter
JPH054622U (en) * 1991-06-27 1993-01-22 京セラ株式会社 Ladder type filter
JPH054623U (en) * 1991-06-27 1993-01-22 京セラ株式会社 Ladder type filter
JPH0528124U (en) * 1991-09-21 1993-04-09 日本特殊陶業株式会社 Piezoelectric filter

Also Published As

Publication number Publication date
JPH0619214Y2 (en) 1994-05-18

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