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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of the electro-acoustic
transducer which has already been proposed, and FIG. 2 is a cross-sectional view and a plan view
of an electro-acoustic transducer which can be used for such an electro-acoustic transducer. FIG.
3 is a sectional view and a plan view of a second embodiment of the present invention, and FIG. 4
is a sectional view of another embodiment. 5... An adhesive for bonding the piezoelectric element
1 to the vibration plate 4, 6... An annular seal provided on the piezoelectric element 1. Fig.29Fig.29 Opened 4865214 (2) paste "Fig. 4" one by one. f 4-30 one
[Detailed description of the invention] As a simple and small electroacoustic transducer capable
of generating a sufficiently high sound with a small amount of power consumption, as shown in
FIG. Mechanically coupled to the electrode with a co-elongated electrode 3t-equipped with fc
Senden atmosphere 1 板 plate 4 as a sounding body, from mm ト ラ ン to 48 48-6524-02 dister
'rr, t-passing low By deforming the body by imprinting the electrons on the pair of IIr poles 2.4
on the front and back sides of the chip element 1 as the impedance times # t'll, the abovementioned pair of electrodes 2 .4 another transistor whose conduction is controlled by the
electrons generated between the other pair of electrodes 2'3 on the both sides of the field
element 1 by the deformation of the above-mentioned speaker jr, k through the thing that was
made to discharge, patent 1946! No. 11 664,97, this invention relates to a sound generator or
electro-acoustic transducer used in such a device. In FIG. 1, horses ˜ R, resistance, CI ˜ 0.
Indicates a capacitor, D # i rectifier, and S indicates a switch. A split electrode W that can be used
for such an electric sound-conversion element! As shown in FIG. 2, the circular electric cochlear
element 1 is provided with a circular central electrode 2 and an annular electrode 2 'surrounding
the same on the back surface, and a single electrode 3t-on the back surface. It is conceivable that
when the electroacoustic transducer is formed by adhering to the sheet IF 'plate 4 with this
Taden element 1t-adhesive 5, the electrode 2.48-65214-032 of 8-'R1 element 1 If an electron is
applied so that the electrode 2 $ 1 becomes positive between the series 3, and if the electrode
portion with the electrode 2 extends in the radial direction as shown by the arrow δ, the
diaphragm 4 # ′ Since the curvature is in the direction of the arrow i and integrated with the
electric field diaphragm 1 and the diaphragm 4, the peripheral portion with the annular electrode
2 'is also subjected to a radially extending force, and as a result Electrons are generated, and
since the electrons of the electrodes 2 and 2 'have mutually opposite polarities and [□], both
electrodes are used if the insulation between the two electrodes is not good. The resulting
current, decreases the output electrons of the electrodes 2 · s] transistor Tr in the 1 v, the
conduction period of the viper Kakunashi, vibration of the electro-acoustic transducer becomes
weak. Therefore, if the distance between the electrodes 2.2 'is increased to improve the insulation
between the electrodes, the area of the electrode 2.2' decreases and the vibration strength of the
conversion wheel decreases. This device is intended to obtain an electroacoustic transducer
having a good gestational age between bifurcated electrodes on the surface and a wide area of
both electrodes with excellent vibration strength due to a simple and easy structure. The
following is an example of interviewing the figure.
FIG. 5 is a cross-sectional view of one embodiment of the present invention and a plan view 4B65224-04, and it is held between the center electrode 2 and the annular electrode 2 'provided on
the surface of the disc-shaped conductive element 10. The creeping distance t-between the two
divided electrodes 2 '2' is increased by removing the annular EF conductor portion from the
surface to the back surface to a suitable depth and providing the groove 6. In such a structure,
the area between the two split city poles 2.2 'provided on the surface of the Senichi device 10 is
not reduced, and the isolation IP between both electrodes is improved to vibrate the
electroacoustic transducer. While the strength can be increased, a uniform single electrode is
provided on the j5i surface of the field element 1 in the manufacture thereof, and one of the
electrodes is bonded to the vibration analysis 4 by the bonding side 5 and 7? Since the ringshaped annular groove 6 can be formed by scraping off the electrode 2,000 collector on the
surface of the IIIF element 10 from the surface of the electrode toward the collector, l-Conductivity forming an electrode as in the case of providing the center electrode 2 and the
annular electrode 2 ′ by printing, brushing or the like on the surface of the element 1. There is
no need to widen the distance between V-electrodes 2.2 'to prevent the occurrence of a short
circuit between the electrodes due to negative immersion, and reluctant to polish the short l #
of% pole 1h: The distance between the 48-85214-05 pole 2.2 'is narrowed to increase the area of
both electrodes, and the vibration of the electric f4Ig conversion atmosphere can be
strengthened by the pressure IIf element of the same radius, It also becomes easy to
manufacture. FIG. 4 is a cross-sectional view of another embodiment of the present invention, in
which the groove 6 provided in the device 1 of the embodiment shown in FIG. Also, the creepage
distance of the electrode 2.2 'cabinet provided on the surface th of the 1111' zero child 1 is
removed in a cyclic manner. As described above, the electric sound conversion element according
to the present invention has a simple structure that is easy to manufacture, and the insulation I #
between the electrodes on both sides of the surface is excellent. There is an effect that the area of
the both electrodes can be increased to increase the vibration string #. 1. 8