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JPS55172892

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DESCRIPTION JPS55172892
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross sectional view showing one
embodiment of a conventional buzzer structure, and FIG. 2 is a cross sectional view showing one
embodiment of a buzzer structure of the present invention. FIG. 3 shows the stepped screw ring
of the present invention. 1 ииииииииииииииииииииииииииииииии Buzzer cover, 3 иии Glass, 4 ииииииии Buzzer holding pipe, 5
ииииииииииииииииииииииииииииииииииииииииииииииииииииии ииииииииииииииии Buzzer frame 7, ииииии First diaphragm, 8 иии Second diaphragm,
9 ииииии Relay, 10 иии Magnet и 11, иии
иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Screw link, 16
иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Buzzer frame , 17 ... 1st diaphragm,
18 ... 2nd diaphragm, 19 ... stator.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an
electromagnetic buzzer structure for an electronic watch. An electromagnetic buzzer constructed
as a unit 0 shown in FIG. 1 showing an embodiment of a part of a conventional buzzer structure
has a waterproof batting 5 attached to a buzzer holding vibrator 4 integrally formed with the
outer case 1 by brazing or the like. It is held in the inserted form. (1) In the case of this structure,
however, the outer diameter of the diaphragm 7, 8 or the magnet 10 is the maximum outside of
the part of the buzzer considering both the thickness of the holding pipe and the buzzer frame 6.
It will be smaller than the diameter (holding pipe outer diameter). The sound pressure is
proportional to the square of the diaphragm radius, and considering that the excitation force is
larger as the magnet is stronger, this structure is not necessarily efficient in space. In the present
invention, in order to eliminate such a defect, a part of the outer case is also used as a buzzer
frame, and the buzzer is not formed as a unit but includes the outer case, and the diaphragm
outer diameter in the part of the washer. The purpose is to increase the space efficiency of the
magnet outer diameter, and thus to increase the volume of the buzzer, or to realize the thinness
and miniaturization. The present invention will be explained based on the following
embodiments. Fig. 2 shows an embodiment of the buzzer structure of the present invention. и 16
03-05-2019
1
is a holding pipe which is a part of the exterior case and which has a buzzer rate, The inner
diameter is threaded. The diaphragm 17 is attached via the waterproof pad 14 (2) an X thread
ring 15 (an enlarged view is shown in FIG. 5). ) K is fixed to the frame 16 to form a waterproof
structure. In addition, the diaphragm 18 is in the form of throwing in the stepped screw ring, and
attraction of the magnet is held by force only. A 9 joint iron, 10 is a magnet, 11 is a coil, 12 is a
magnetic core, 19 is a stator and fixed to the frame 16 by caulking or screwing. By using the
structure of the present invention, the diaphragms 17, 18 and the magnet 10 can be made much
larger than those of the conventional unit structure even if the volume of the puffers is the same.
Thin and compact. As described above, the present invention is sufficiently significant for
increasing the volume of the electromagnetic buzzer, making it thin and compact.
03-05-2019
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