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JPS5851696

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DESCRIPTION JPS5851696
[0001]
The present invention relates to a method of fixing a diaphragm of an electrodynamic speaker
and a method of taking out a lead. Conventionally, the basic structure of the electrodynamic
speaker is as shown in FIG. ボール2. The voice coil 4 installed in the magnetic gap of the
magnetic circuit formed by the yoke 3 is bonded to the diaphragm 5, and the vibration @ 5 is
bonded or welded to the frame 6. Here, as shown in FIG. 1, the voice coil adhesive 7 is drawn out
from the hole formed in the frame to the lead group II 8 on the lower surface of the frame or
after bonding the leads to the diaphragm edge portion, through the notch of the frame It is
processed by the method of withdrawing to the board | substrate of the frame side or lower
surface. When assembling a speaker having such a structure, in many cases, after bonding the
voice coil to the diaphragm, the diaphragm edge S is adhered to the frame and the friends are
welded, and at the same time the lead terminals are passed through the holes in the frame To the
side of the frame or drawn out through the notch to the side of the frame, and similarly to
welding and brazing to the substrate. According to this assembly method, the lead must be
processed simultaneously with the fixation of the diaphragm, and in particular, the work of
connecting the lead 1 to the lead group must rely on the manual work of skilled human beings,
mass production It also contributes to rising costs, as it is a bottleneck in the process. Also, fixing
the area around the diaphragm by bonding itself is not easy to work with and is not a preferable
work process. An object of the present invention is to provide a new structure of an
electrodynamic speaker which can eliminate the above-mentioned drawbacks, can be easily
operated, and can realize an automatic assembly with a simple structure. Hereinafter, it will be
described in detail according to the drawings. FIG. 2 shows a part called a diaphragm unit, and
the diaphragm 9. ボイスコイル10. リード11. Diaphragm receiving frame 12. Lead
substrate 13. It comprises a lead pattern 14. To assemble the diaphragm unit, (1) Take up the
voice coil, bond it to the diaphragm, pull out the lead, and bond it to the wL work plate. (2) The
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1
diaphragm is temporarily bonded to the diaphragm receiving frame, and the lead terminal is
welded to the lead pattern. It is done in the order of. At this time, the diaphragm receiving frame
and the lead substrate do not have to be separate bodies, and for example, the diaphragm
receiving frame of plastic is used. Next, FIG. 5 shows the diaphragm unit and the frame 15.
shown in FIG. Magnet 16. ボール17. It is a figure which combines the magnetic core unit
comprised by yoke 1B, and is assembled next. FIG. 4 is a view of the same as viewed from below,
and 19 is a lead pattern, 20 Fi lead ladder.
FIG. 5 is a perspective view of only the frame. As shown in FIG. 5, the periphery of the diaphragm
is clamped and fixed by the diaphragm unit of FIG. 2 and the frame of FIG. At this time, processes
such as adhesion and bathing are not required, and it is conceivable to inject a substance to the
fixing part which at best compares to the role of a buffer to prevent chattering. Since the
processing of the leads has already been completed at the time of the diaphragm unit
configuration, no manual process such as through holes or drawing out on the 1I11 surface is
required at all. The frame and the diaphragm support can be fixed by welding if both are made of
plastic material. This is a simple and advantageous fixing method in which the processing time is
shorter than adhesion or canno. As described above, according to the present invention, since the
diaphragm unit is treated in advance with the lead terminals, it is possible to eliminate the
difficult task of drawing the lead through the holes and notches of the frame simultaneously with
the diaphragm being fixed and treating it. In addition, since the diaphragm can be fixed by simple
sandwiching, bonding, dissolving and subsequent steps are not required, automatic assembly can
be realized with a simple structure, and cost can be reduced. is there.
[0002]
Brief description of the drawings
[0003]
The $ 1 figure shows an example of a conventional electrodynamic speaker.
FIG. 2 shows a diaphragm unit of an electrodynamic speaker according to the present invention.
FIG. 3 is an assembly view of the electrodynamic speaker of the present invention, and FIG. 4 is a
simplified plan view thereof. FIG. 5 shows an example of a frame. 5.9 ...... diaphragm 7 11 20 ......
read 14.19 ...... lead pattern a, 15 ...... lead board 12 ...... diaphragm receiving frame 615 ...... frame
or Attorney outermost upper Tsutomudai 1 FIG. 113 Fig. @ 4 Figure
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