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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of a conventional
piezoelectric transducer, FIG. 2 is an exploded perspective view of this embodiment, FIG. 3 is an
assembly view of FIG. 2, and FIG. FIG. 5 is a perspective view of the resin-made vibration body of
the shape of FIG. 5, FIG. 5 is a frequency characteristic view of a present Example. DESCRIPTION
OF SYMBOLS 1 ... Supporting base, 2 ... Square plate type bimorph, 3 ... Resin-made vibrator, 4 ...
Mesh, 5 ... Protective case, 6 ... Shield plate. あlH? 2 concave 1 E σ 4 to K; figure-165-real
open plate 51-60 774 (2) η 4 layer 99 900 t 5 E 4 θ X 紋 Cie H, 165 165-
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a piezoelectric
type ← wave receiver using a IIIIIW fluorocarbon moving body. H7,as、
h ′″″I j[II&L
kK*fi、7″′″m60′。 The piezoelectric
transducer of the 91 · 1 lure 6.00 has a complicated structure, is unreliable, and has an
effective frequency band. The present invention wFi is an improvement of the disadvantages of
such a conventional electric transducer, in which a trapezoidal resin vibrator is adhered and
provided at the center of a square plate bimorph, so that the number of fFl An object of the
present invention is to provide a t-piezoelectric transducer having a wide band, a simple
structure, a high reliability, and an excellent transmission / reception sensitivity. The following is
an example of this invention according to the Yr drawing. In FIG. 2 (in the case of the l holding
stand, the basic base 1a is provided with the bimorph # 1 lb and the terminal bin 10). 2 is a
square hole type bimorph, and one lead * 42a is provided from both sides. It is a three-in-asquare-shaped rooster-shaped oscillating body. 4 is Meshus, 5 is a rumor case, and 6 # 'i shields.
As shown in FIG. 3, the parts are assembled as shown in FIG. That is, the shield plate 6 is placed
on the holding table 10 only, and the holding plate 10 is placed on the a nozzle 1b of the holding
plate 1), Place the square plate bimorph 2 and connect the lead # IJ2a to the wheeze chip pin IC
respectively. Glue on the center of square plate bimorph 2. Take a picture 3) Then, the holding
case 1 and the shield plate 6 are fixed to 11 as the holding case 1 in which the mesh 4 is scolded.
In addition to the shape t + t4 of the resin pregnancy caster and the square pyramidal frustum
shape of the pit 2, as shown in the brush 41 sentence, a round table, a table on a circle, a bowllike table, a sphere, a hemisphere Things etc. are considered. The present practice shown in the
second and 31st chapters (1 wave of 91, feature (2) is a book as shown in the fifth). As described
above, according to the present invention, since the trapezoidal tree-like vibration body is
attached to the central part of the square plate bimorph, the frequency 'Ik band is wide, and the
structure is simplified and the reliability is improved. Itching, and the beading 1'V temperature is