JPS58186624U

JPS58186624U - Ladder-shaped ceramic filter

Info

Publication number: JPS58186624U
Application number: JP8559782U
Authority: JP
Inventors: 後藤　節夫
Original assignee: 松下電器産業株式会社
Priority date: 1982-06-08
Filing date: 1982-06-08
Publication date: 1983-12-12

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

[Brief explanation of drawings]

第１図は従来の梯子形セラミックフィルタの断面図、第
２図は同結線図、第３図は従来の電極板を示す斜視図、
第４図ａ、　　ｂはそれぞれ従来の緩衝板を示す斜視図
、第５図は本考案に係る梯子形゛セラミックフィルタの
一実施例を示す断面図、第６図は同セラミックフィルタ
を構成する電極板の一実施例を示す斜視図、第７図は同
分解斜視図、第８図は本考案の電極板の他の実施例を示
す斜視図、第９図は同分解斜視図である。１．２・・・・・・圧電磁器共振子、３・・・・・・電
極板、４・・・・・・絶縁板、５・・・・・・緩衝板、
６・・・・・・ケース、７゜８・・・・・・縦列両端の
電極板、７ａ−ｇａ、　　７ｂ・８ｂ・・・・・・バネ
用金属板（メス形板バネ、オス形板バネ）。Fig. 1 is a cross-sectional view of a conventional ladder-shaped ceramic filter, Fig. 2 is a wiring diagram thereof, and Fig. 3 is a perspective view showing a conventional electrode plate.
4a and 4b are perspective views showing conventional buffer plates, FIG. 5 is a cross-sectional view showing one embodiment of the ladder-shaped ceramic filter according to the present invention, and FIG. 6 is a diagram showing the electrodes constituting the ceramic filter. FIG. 7 is an exploded perspective view of one embodiment of the plate, FIG. 8 is a perspective view of another embodiment of the electrode plate of the present invention, and FIG. 9 is an exploded perspective view of the same. 1.2... Piezoelectric ceramic resonator, 3... Electrode plate, 4... Insulating plate, 5... Buffer plate,
6...Case, 7゜8...Electrode plates at both ends of the column, 7a-ga, 7b, 8b...Metal plates for springs (female plate spring, male plate Spring).

Claims

[Scope of utility model registration request]

A plurality of piezoelectric ceramic resonators, electrode plates having protrusions for holding the resonators, insulating plates arranged at appropriate locations, and buffer plates are housed in a column in a case, and the electrode plates at both ends of the column are arranged in parallel. A ladder-shaped ceramic filter characterized by having a leaf spring structure made of two spring metal plates.