JPH0370419U

JPH0370419U -

Info

Publication number: JPH0370419U
Application number: JP13198589U
Authority: JP
Priority date: 1989-11-13
Filing date: 1989-11-13
Publication date: 1991-07-15

Description

[Brief explanation of drawings]

第１図は、この考案の一実施例に係る複合圧電
部品を示す横断面図である。第２図は、第１図の
複合型圧電部品の製造工程の一例を示すものであ
り、Ａは圧電発振素子の平面図、Ｂはその側面図
、Ｃはコンデンサの平面図、Ｄはその側面図、Ｅ
は圧電発振素子とコンデンサを貼り合わせた図、
Ｆは外装樹脂をモールドする前の図である。第３
図および第４図は、それぞれ、従来の複合型圧電
部品の例を示す斜視図である。第５図は、第１図
、第３図および第４図の複合型圧電部品の等価回
路図である。１２……圧電発振素子（圧電素子）、１２１…
…圧電基板、１２２，１２３……電極、１３……
コンデンサ、１３１……誘電体基板、１３２〜１
３４……電極、１４〜１６……端子、１７……導
電性接着剤、２０……外装樹脂。 FIG. 1 is a cross-sectional view showing a composite piezoelectric component according to an embodiment of this invention. Fig. 2 shows an example of the manufacturing process of the composite piezoelectric component shown in Fig. 1, where A is a plan view of the piezoelectric oscillation element, B is a side view thereof, C is a plan view of the capacitor, and D is a side view thereof. Figure, E
is a diagram of a piezoelectric oscillation element and a capacitor bonded together,
F is a diagram before molding the exterior resin. Third
FIG. 4 is a perspective view showing an example of a conventional composite piezoelectric component. FIG. 5 is an equivalent circuit diagram of the composite piezoelectric component shown in FIGS. 1, 3, and 4. 12...Piezoelectric oscillation element (piezoelectric element), 121...
...Piezoelectric substrate, 122, 123... Electrode, 13...
Capacitor, 131...Dielectric substrate, 132-1
34... Electrode, 14-16... Terminal, 17... Conductive adhesive, 20... Exterior resin.

Claims

[Scope of utility model registration request]

a piezoelectric element in which electrodes are formed on both main surfaces of a piezoelectric substrate, facing each other near the center and folded back to near the end of the opposite main surface;
A capacitor in which electrodes are formed near both ends of one main surface of a dielectric substrate and at least near the center of the other main surface is provided with a gap between the two, and electrodes are formed near both ends of the capacitor. First and second terminals are conductively bonded to both ends of the electrodes bonded together with a conductive adhesive at opposite electrode portions with the formed main surface side facing the piezoelectric element, and the center of the capacitor is conductively bonding a third terminal to an electrode near the section, and further leaving a space around at least the vibrating section of the piezoelectric element around the tip of the piezoelectric element, the capacitor, and the first to third terminals, A composite piezoelectric component characterized by being covered with an insulating exterior resin.