JPH0392822U

JPH0392822U -

Info

Publication number: JPH0392822U
Application number: JP9028190U
Authority: JP
Priority date: 1989-10-13
Filing date: 1990-08-28
Publication date: 1991-09-20
Anticipated expiration: 2005-08-28
Also published as: JPH084736Y2

Description

[Brief explanation of the drawing]

第１図は、この考案の一実施例に係る複合型圧
電部品を示す斜視図である。第２図Ａは第１図中
のコンデンサの一方の主面側の平面図であり、同
図Ｂは他方の主面側の平面図である。第３図は、
立体的に広がつた先端部を有する端子の他の例を
示す斜視図である。第４図および第５図は、それ
ぞれ、この考案の他の実施例に係る複合型圧電部
品のコンデンサ周りを示す正面図である。第６図
は、この考案の更に他の実施例に係る複合型圧電
部品を示す平面図である。第７図および第８図は
、それぞれ、この考案に係る複合型圧電部品に用
いられるコンデンサの例を示す斜視図である。第
９図は、従来の複合型圧電部品の一例を示す斜視
図である。第１０図Ａは第９図中のコンデンサの
一方の主面側の平面図であり、同図Ｂは他方の主
面側の平面図である。第１１図は、複合型圧電部
品の等価回路図である。２……圧電発振素子（圧電素子）、２１……圧
電基板、２２，２３……電極、３，４，５ａ……
端子、６ａ……コンデンサ、６１……誘電体基板
、６２ａ，６２ｂ，６３ａ，６３ｂ……電極。 FIG. 1 is a perspective view showing a composite piezoelectric component according to an embodiment of this invention. 2A is a plan view of one main surface side of the capacitor in FIG. 1, and FIG. 2B is a plan view of the other main surface side. Figure 3 shows
FIG. 7 is a perspective view showing another example of a terminal having a three-dimensionally expanded tip. FIGS. 4 and 5 are front views showing the vicinity of a capacitor of a composite piezoelectric component according to another embodiment of the invention, respectively. FIG. 6 is a plan view showing a composite piezoelectric component according to still another embodiment of the invention. 7 and 8 are perspective views respectively showing examples of capacitors used in the composite piezoelectric component according to the invention. FIG. 9 is a perspective view showing an example of a conventional composite piezoelectric component. 10A is a plan view of one main surface side of the capacitor in FIG. 9, and FIG. 10B is a plan view of the other main surface side. FIG. 11 is an equivalent circuit diagram of the composite piezoelectric component. 2... Piezoelectric oscillation element (piezoelectric element), 21... Piezoelectric substrate, 22, 23... Electrode, 3, 4, 5a...
Terminal, 6a... Capacitor, 61... Dielectric substrate, 62a, 62b, 63a, 63b... Electrode.

Claims

[Claims for Utility Model Registration] (1) First and second terminals each having a three-dimensionally expanded tip end at both ends of a piezoelectric element in which electrodes are formed on both the front and back principal surfaces of a piezoelectric substrate. A capacitor is connected conductively to both ends of the dielectric substrate, and electrodes are formed on both the front and back principal surfaces of the dielectric substrate, each divided at the center. A flat surface is conductively bonded to both tips of the first and second terminals with a gap between them and the piezoelectric element, and further extends between the divided electrodes on the other main surface side of the capacitor. 1. A composite piezoelectric component, characterized in that the tip of a third terminal having a widened tip is conductively joined. (2) Both ends of the piezoelectric element, which has electrodes formed on both the front and back principal surfaces of the piezoelectric substrate, are conductively bonded to both ends of the first and second terminals, each having a three-dimensionally expanded end. In addition, a capacitor having electrodes divided at the center on both the front and back principal surfaces of a dielectric substrate is provided, and a gap is provided between the electrode portion on one principal surface side and the piezoelectric element. The capacitor has a tip portion separated into two parts, which are electrically conductively bonded to both tip portions of the first and second terminals, and further extend between the divided electrodes on the other main surface side of the capacitor. A composite piezoelectric component characterized in that the tip of the third terminal is conductively bonded. (3) Both ends of the piezoelectric element, which has electrodes formed on both the front and back main surfaces of the piezoelectric substrate, are conductively bonded to both ends of the first and second terminals, each having a three-dimensionally expanded end. In addition, a capacitor having electrodes divided at the center on both the front and back principal surfaces of a dielectric substrate is provided, and a gap is provided between the electrode portion on one principal surface side and the piezoelectric element. The first and second terminals are electrically conductively bonded to both ends of the first and second terminals, respectively, with a gap larger than the gap between the electrodes of the capacitor so as to span between the divided electrodes on the other main surface side of the capacitor. A composite piezoelectric component characterized in that the tip of a third terminal having a wide tip is conductively bonded.