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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional skier,
and FIG. 3 is a cross-sectional view of an embodiment of a loudspeaker according to the present
invention. 14 ······ Electro-acoustic conversion element, 21 ········ Incompressible fluid, 22.24 ······
Elastic sheet. Fig. 1 Fig. 2 \ 1 93 開 49-134139 (2) Fig. 3 Fig. 1 θ-94-
DETAILED DESCRIPTION OF THE INVENTION The present discussion is a book related to
acoustic emission using an electromechanical transducer and an incompressible fluid. In general,
a diaphragm is connected to a voice coil disposed in the magnetic gap of the field section, and an
electric signal is applied to the voice coil to piston the voice film to drive the diaphragm to
generate sound. It is configured to radiate. As another example, there is a book like the one
shown in No. 1-1, No. 2. The four shown in FIG. 1 and FIG. 2 are electroacoustic transducers
which usually obtain ultrasonic waves. 2 · Do not bite, the first one shown in Fig. 1 is a ringshaped piezoelectric actuator 2 in a Fenicalli 7 retarder 1 with a presser plate 4 and a screw bar
through an elastic body 3 such as rubber. is there. 9 and 2m are provided with a skin 6 and a
disk-like no-no-Imorph oscillator · mounted on the front terminal plate T via an elastic member 8,
The additional resonator 10 vr is attached to and the case 11 is entirely covered. As described
above, in the case of the imaginary configuration Lk, as shown in FIG. 1, the radiation sound from
the piezoelectric vibrator 2 is reflected by the slope IcfEi of the j nicard reflex 1 and radiated in
the central axis direction. Therefore, depending on the vertical length of the inclined surface of
the conical relief 1, the radiation surface can not be made into a voluminous crystal, or it can not
be stably performed by the piezoelectric m moving element 2, and the performance as a mepika
Even if it was a problem, it would be unreasonable. 1 Also, this radiation l was on the top of the
case 11 and w 11 w w i w i w n w w w i w i w w w i w i w i w i w i w i w i w i w i w i w i w i w i w
i w 3--7 The present invention eliminates the above-mentioned conventional drawbacks.
Hereinafter, the present invention will be described according to one embodiment of the present
invention. An electric-acoustic transducer 14 such as a piezoelectric vibrator is disposed on the
substrate 12 via a 5141 member 13, and the electro-acoustic transducer 14 is disposed on the
substrate 12. A presser plate 16 is disposed on the conversion element 14 via the 4 elastic
member 13. The presser 4116 is tightened by a screw rod 17 fitted in the mounting hole 16 of
the substrate 12 to make the electric blue tatami conversion element 14! It is held in III. In the
outer layer surface and the inside am of the electroacoustic transducer 14, a ninth lead l111S for
supplying a turtle air angle is connected to the H mourning turtle. Among the lead wires 18, the
lead wires connected to the circumferential drawing of the electroacoustic transducer 14 are
drawn out through the substrate 120 through holes 9, and the through holes 1 are made of the
sealing material 20. It is squeezed out V).
And this substrate 12. The incompressible fluid 21 consisting of water, oil, or any other liquid is
injected so that the mechanical displacement m8c of the electroacoustic transducer 14 is in
contact with the container portion configured by the turtle gas sound pressure transducer
transducer 14 ° IILlWs. It is done. A dome-shaped elastic sheet 22 such as a metal foil 1
synthetic IIh film or a rubber thin film is placed on the sound and radiation surface of the
incompressible fluid 21, and the periphery thereof is clamped between the elastic member 13
and the holding plate 16. ing. The elastic sheet 22 may be a turtle which prevents the fluid 21
from flowing out and does not inhibit the vibration of the fluid 21. The book shown in FIG. 4 uses
a funnel-shaped book as the pushing JL plate 16, and a spherical elastic sheet 24 is provided on
the thin tube portion Q1m at its tip, and from the thin tube 92m to the spherical elastic sheet 24.
Also, the fluid 21 is injected to form nine configurations. In such a configuration, when an
electrical signal is applied to the electroacoustic transducer 14 through the lead weir 18,
mechanical vibration is generated in one direction of the cylinder. This vibration is transmitted to
the incompressible fluid 21, and the elastic sheet 2 or 24 is also emitted. As described above, in
the speaker of the present invention, the vibration of the electroacoustic transducing element is
disposed on the self-vibrating surface of the non-compressible 6τ-type fluid through the
incompressible fluid and is emitted from the nine elastic sheets. By changing the shape of the
elastic sheet, it is possible to freely glance at the guidance characteristics. In particular, as shown
in No. 41 [11], spherical blur will be obtained from a perfect-directed Sveka. The transmission
efficiency is changed by one kind of fluid, and it is possible to use different characteristics, and it
is a turtle that can be used in the opposite direction or in the side, and has great utility value.