JPS6425228U

JPS6425228U -

Info

Publication number: JPS6425228U
Application number: JP11953387U
Authority: JP
Priority date: 1987-08-03
Filing date: 1987-08-03
Publication date: 1989-02-13

Description

[Brief explanation of the drawing]

第１図は本考案のコンデンサ内蔵形圧電共振子
の一実施例の斜視図、第２図はコンデンサ内蔵形
圧電共振子の側面図、第３図はコンデンサ内蔵形
圧電共振子の平面図、第４図は第２図の切断面線
〜から見た断面図、第５図は第２図の切断面
線〜から見た断面図、第６図は圧電共振子１
０の組立方法を説明するための図、第７図は他の
実施例の外囲部材１６ａの斜視図、第８図は外囲
部材１６ａをケース１３に固定する方法を説明す
るための図、第９図はコンデンサ内蔵形圧電共振
子の回路図、第１０図は従来のコンデンサ内蔵形
圧電共振子の製造工程を説明するための図である
。１０……コンデンサ内蔵形圧電共振子、１３…
…角筒状ケース、１３ａ……筒孔、１４，１５…
…金属性キヤツプ、１６，１６ａ……外囲部材、
２０……共振子エレメント、２１……圧電セラミ
ツク基板、２１ａ，２１ｂ……圧電セラミツク基
板２１の主表面、２２，２３……電極、２６……
コンデンサ基板、２６ａ，２６ｂ……コンデンサ
基板の主表面、３１，３２……コンデンサ電極の
うちのホツト側電極、３０……コンデンサ電極の
うちのアース側電極、Ｃ１，Ｃ２……コンデンサ
、Ｅ……共振子エレメント。 Fig. 1 is a perspective view of an embodiment of the piezoelectric resonator with a built-in capacitor according to the present invention, Fig. 2 is a side view of the piezoelectric resonator with a built-in capacitor, and Fig. 3 is a plan view of the piezoelectric resonator with a built-in capacitor. Figure 4 is a sectional view taken from the cutting plane line ~ in Figure 2, Figure 5 is a sectional view taken from the cutting plane line ~ in Figure 2, and Figure 6 shows the piezoelectric resonator 1.
7 is a perspective view of an outer enclosure member 16a of another embodiment, and FIG. 8 is an illustration for explaining a method of fixing the outer enclosure member 16a to the case 13. FIG. 9 is a circuit diagram of a piezoelectric resonator with a built-in capacitor, and FIG. 10 is a diagram for explaining the manufacturing process of a conventional piezoelectric resonator with a built-in capacitor. 10... Piezoelectric resonator with built-in capacitor, 13...
... Square tubular case, 13a... Cylindrical hole, 14, 15...
...metallic cap, 16, 16a...envelope member,
20... Resonator element, 21... Piezoelectric ceramic substrate, 21a, 21b... Main surface of piezoelectric ceramic substrate 21, 22, 23... Electrode, 26...
Capacitor board, 26a, 26b...Main surface of capacitor board, 31, 32...Hot side electrode of the capacitor electrodes, 30...Ground side electrode of the capacitor electrodes, C1, C2...Capacitor, E... resonator element.

Claims

[Scope of utility model registration request]

Metal caps are attached to the openings at both ends of the rectangular cylindrical case, and an annular metal enclosure member is attached to cover the outer periphery of the case near the axial center of the case. An energy-confining piezoelectric resonator element is housed, one electrode of the piezoelectric resonator element is connected to one metal cap, the other electrode is connected to the other metal cap, and the other electrode of the piezoelectric resonator element is connected to the other metal cap. There are two on the top surface to form a capacitor.
A capacitor substrate with capacitor electrodes formed on two main surfaces is attached, the hot side electrode of the capacitor electrode is connected to a metal cap, and the ground side electrode of the capacitor electrode is connected to a metal surrounding member. A piezoelectric resonator with a built-in capacitor.