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JP2006025381

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DESCRIPTION JP2006025381
[Problem] The speaker has not been adopted for a small size, portable device, but even if it is
adopted, both the sound quality and the sound volume are not sufficient due to the limitation due
to the small size and thinness of the speaker itself and the limitation of the back space. A super
magnetostrictive actuator 2 is incorporated in an apparatus 3 or the like so that the transmission
part 1 of the magnetostrictive actuator contacts a flat plate 4 on which a portable device is
placed in use, and the flat plate 4 placed in use. By vibrating the giant magnetostrictive actuator
2 to produce sound, the volume and sound quality are secured. A small size and portability can
be achieved by not incorporating the diaphragm in the device, and the necessary volume and
sound quality can be secured by utilizing a large area of a desk, a base, etc. on which the main
body is placed at the time of use as the diaphragm. [Selected figure] Figure 1
Speaker using super magnetostrictive actuator
[0001]
The present invention relates to a device that uses a giant magnetostrictive actuator that does
not incorporate a diaphragm in the device body as a substitute for a speaker.
[0002]
The speaker attached to the conventional small and thin portable device was a small and thin
speaker.
04-05-2019
1
Or the present conditions were equipped with the ear phone terminal, without incorporating a
speaker.
[0003]
However, due to limitations due to the downsizing and thinning of the speakers themselves, and
a lack of sufficient space on the back, etc., the sound quality and the volume are not satisfactory
either, and in some cases external speakers are separately prepared. is the current situation.
Therefore, the object of the present invention is to improve sound volume and sound quality
without impairing portability and miniaturization.
[0004]
In order to solve the above problems, the giant magnetostrictive actuator is incorporated in the
portable device so that the transmission portion of the giant magnetostrictive actuator contacts
the flat plate on which the portable device is placed in use, and the flat plate placed in use is It
vibrates with a magnetostrictive actuator and makes a sound. Compactness can be achieved by
incorporating a giant magnetostrictive actuator into the device body and not incorporating a
diaphragm.
[0005]
According to the present invention, the additional space of the device requires only the volume of
the giant magnetostrictive actuator, and the compactness and portability can be minimized.
Necessary volume and sound quality can be secured by using, as a diaphragm, a large area such
as a desk and a table on which the main body is placed at the time of use.
[0006]
One embodiment of the present invention is shown in FIG. The giant magnetostrictive actuator 2
is incorporated in the portable device 3 so that the transfer tool 1 of the giant magnetostrictive
actuator contacts the flat plate 4 placed when the portable device is used, and the flat plate 4
placed during use is the giant magnetostrictive actuator It vibrates at 2 and makes a sound.
04-05-2019
2
[0007]
[Effects of the Embodiment] According to this embodiment, as long as there is only a space for
mounting the giant magnetostrictive actuator, the necessary volume and sound quality can be
secured without impairing the portability and the miniaturization, and the device with only the
ear phone terminal is flat. You can give the function of the speaker by putting it on the board.
[0008]
It is a sectional view showing one embodiment of this invention.
It is a figure of the example of use.
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3
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