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TECHNICAL FIELD The present invention relates to an ultrasonic probe which is connected to an
ultrasonic diagnostic apparatus and used when diagnosing an object. 2. Related Art Recently,
ultrasonic diagnostic apparatuses have been required to have high resolution in order to improve
the accuracy of diagnosis. As one of the means for achieving this, it has been practiced to
increase the ultrasonic frequency for driving the electroacoustic transducer, and to increase the
gap dimension accuracy of a large number of linear arranged electroacoustic transducers.
Further, as the frequency is increased, the attenuation of the ultrasonic wave in the subject is
increased, and therefore, the drive voltage needs to be increased. Problems to be Solved by the
Invention However, if the drive voltage is increased as in this conventional ultrasonic probe, heat
generation resulting from the energy loss consumed in the electroacoustic transducer is
promoted. No means for preventing such heat generation has been employed in conventional
ultrasonic probes. Therefore, the present invention is intended to provide an ultrasonic probe
capable of reducing such heat generation and improving the accuracy of the gap size of the
electroacoustic transducer, and solving the problem. Means for Solving the Problems The
technical means of the present invention for solving the above-mentioned problems is a filling
which is filled in each gap of a large number of linearly arranged electroacoustic transducers, is
electrically conductive, and has thermal conductivity. And a heat dissipating member in contact
with at least one side of the filler. Operation According to the present invention, according to the
above-described configuration, the internal heat generation of the stain acoustic conversion
element is dissipated by the filling material filled in the gaps of the electroacoustic conversion
element and the heat dissipation member in contact therewith, thereby reducing the temperature
due to heat generation. The accuracy of the gap dimensions of the respective electroacoustic
transducers can be improved by means of a filler material. Embodiments Hereinafter, one
embodiment of the present invention will be described in detail with reference to the drawings.
The electroacoustic transducer 1 is provided with a minus electrode 3 and a plus electrode 4 on
both sides of the element 2. The large number of electroacoustic transducers 1 are linearly
arranged and supported by a support 6. A filling material 1 is filled in the gaps of the respective
electroacoustic transducers 1 and the gaps formed on the upper part of the support 6 so as to be
continuous with the gaps, and the gaps 6 between the respective electroacoustic transducer
elements 10 Is held constant. The filler 6 is electrically conductive, and a metal plate having
thermal conductivity is formed to a uniform thickness. A plate-like heat dissipation member 7 is
attached to at least one side of the support 6. The negative end surface of each filler 6 is in
contact with the member 7.
Therefore, the internal heat generation of each electroacoustic transducer 1 can be dissipated by
the heat dissipation member 7 through the filling material 6, and the temperature due to the heat
generation can be reduced. Effects of the Invention As is apparent from the above description,
according to the present invention, a gap between a plurality of linearly arranged electroacoustic
transducers is filled with an electrically conductive and thermally conductive filler, and these
fillers are filled. Since the heat dissipation member is in contact with at least one side of the
material, the heat generation generated in the electroacoustic transducer can be reduced, and the
accuracy of the gap of the electroacoustic transducer can be improved by the filler.
Brief description of the drawings
FIG. 1 is a perspective view showing an embodiment of an ultrasonic probe according to the
present invention.
1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · support
base , 6 ...... fillers, 7 ...... radiating member.
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description, jps61240157
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