JPH0485918U

JPH0485918U -

Info

Publication number: JPH0485918U
Application number: JP12701390U
Authority: JP
Priority date: 1990-11-29
Filing date: 1990-11-29
Publication date: 1992-07-27

Description

[Brief explanation of drawings]

第１図は本考案によるセラミツクフイルタの一
実施例を示す分解斜視図、第２図はその一部を切
欠した正面図、第３図は組立工程における端子の
斜視図、第４図は蓋を取り除いたセラミツクフイ
ルタの平面図、第５図はケースの平面図、第６図
〜第８図は本考案の要部の別な実施例を示すもの
で、第６図は正面図、第７図は第６図のＡ−Ａ断
面図、第８図は側面図、第９図は従来のセラミツ
クフイルタ要部の拡大正面図、第１０図は同フイ
ルタの正面図、第１１図は面付け型の構成例を示
す側面図である。１０……圧電基板、１２……振動部、６０，６
５……ベース、６２，６７……開口部、７１，７
２，７３……端子、７６，７７，７８……端子、
８０……ケース、８２……貫通孔、９０……接着
剤。 Fig. 1 is an exploded perspective view showing one embodiment of the ceramic filter according to the present invention, Fig. 2 is a partially cutaway front view, Fig. 3 is a perspective view of the terminal in the assembly process, and Fig. 4 shows the lid removed. FIG. 5 is a plan view of the removed ceramic filter, FIG. 5 is a plan view of the case, and FIGS. 6 to 8 show other embodiments of the main parts of the present invention, FIG. 6 is a front view, and FIG. 7 is a plan view of the removed ceramic filter. is a sectional view taken along line A-A in Fig. 6, Fig. 8 is a side view, Fig. 9 is an enlarged front view of the main parts of a conventional ceramic filter, Fig. 10 is a front view of the same filter, and Fig. 11 is a surface-mounted type. FIG. 2 is a side view showing an example of the configuration. 10... Piezoelectric substrate, 12... Vibrating part, 60, 6
5... Base, 62, 67... Opening, 71, 7
2, 73... terminal, 76, 77, 78... terminal,
80...Case, 82...Through hole, 90...Adhesive.

Claims

[Scope of utility model registration request]

insert-molding a plurality of terminals in a base made of an insulating material having an opening, at least a portion of each terminal being exposed on the outer surface of the base and within the opening;
Inserting a piezoelectric substrate into the opening, connecting and fixing an electrode on the piezoelectric substrate to the portion exposed in the opening of the terminal, and covering the piezoelectric substrate with an insulating case having a through hole into which the piezoelectric substrate can be inserted; A ceramic filter characterized in that the gap between the piezoelectric substrate and the case, excluding the vibrating part of the piezoelectric substrate, is filled with an adhesive.