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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view and a plan view showing
a configuration example of a conventional ultrasonic transducer. 2 and 3 are a cross-sectional
view and a plan view showing a configuration example of an ultrasonic transducer according to
the present invention. 1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · resistance protection layer, 5 · · · Hydrophobic coating film.
[Detailed description of the invention] This article is about ultrasonic waves for the improvement
of the firstborn. In particular, the present invention relates to an ultrasonic transducer suitable
for an ultrasonic humidifier. In health care, sonostatic humidification is widely used to adjust the
moisture K in the presentation. That is, the ultrasonic humidifier using the electrostrictive
vibrator has a quiet sound and is electrically safe, and is a rounding that a fine spray can be
obtained by weight without raising the water temperature. A conventional ultrasonic transducer
is configured as shown in cross section in FIG. That is, one 1jf K of one of the nine electrostrictive
vibrators fl) made of a piezoelectric material is a circular electrode @ 121. On the other side of
11 9 10 000 are l1ilQ integrated cells (3). Further, on the surface of the 4IiQ embedded
electrode 13) above, a meridian shell (1)-and a sulfur-free-1 teshono protective layer (as a glass
thin film as 41). A titanium foil is provided. However, when the 趨 f wave f & movement element
such as Earth O O was driven in water for a long time, the cavi-gug-on protection 1I 11 floor was
placed and lih became a factor of life reduction. In the case of using a nickel layer etc. as a layer
during the previous play, the water becomes weakly acidic due to water dust, dust in the air, etc.
by driving for a long time, and the cathete 7 Young's holding layer is oxidized. 寿 v v v v. As
described above, it can not be superior to the ultrasonic transducer that can endure the long time
drive that is conventionally submerged in water V and nine. Address to the book = a The purpose
of the flower is to provide a cushy sound transducer that can stably and prolong the life of a
piece of Toi. This invention is! The ultrasonic transducer is a ultrasonic transducer in which a
water-repellent coating film is provided on at least an electrode surface in contact with water of a
pair of electrodes provided on the strain and connector via a welding or a caviar resistance layera John retention layer. In other words, the water resistant coated 1IIIIllI is provided on the
immediate resistance Yabitainon holding sui, and the cavity resistance holding layer is prevented
from being directly affected by underwater driving for a long time. The following description will
be made with reference to FIG. 112 and FIG. One surface vL of the electrostrictive vibrator (1)
made of cedar by a piezoelectric material, is a Japanese cedar electric turtle 2), and a 1 蝙 9
incense turtle 131 is installed in a row of nine hundred thousand In addition, the upper 1 〇 込
み + 3 + O * di + キ ャ ヒ 14 + キ ャ + 14 ニ ッ ケ ル ニ ッ ケ ル 妓 ニ ッ ケ ル 層 4 恢 9 9 発 嶺
発 発 9 as a water film 15 (Silico / h't 'sv ˜ 820) km ff-ryw, in the 1 o'clock 300C s 1-concluded 1
o'clock inhabitant 9 min. ).
Thirdly, a hydrophobic temporary transverse membrane is provided directly to 蒐 嘱 i3 +. +, I
performed atomization-like, law drive acceleration trial about the ultrasonic wave 子 子 禾 of 4
membrane 禾 禾 禾. OW # 朱. -There was no difference in the point of Chemical formula 1, but
when driven by an acidic turtle shell of PH 5mK, the comparative example showed caries of Mt.
In the example, no abnormality was found in the nickel layer even after 30 minutes, 31 glass,
titanium crane, etc. were used as cavitation resistant materials, and in the case of nine cases, a
fist was provided with four water repellent coating layers. did it. In the above embodiment, the
same effect can be obtained even if the rubber such as rubber is used as silicone rubber t * which
has water repellency other than silicone rubber as hydrophobicity conversion. As described
above, in the ultrasonic transducer according to the present invention, it is possible to suspend to
change the service life to a large wheel without being affected by oxidation and the like almost at
the contact with water.