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JPS53134821

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DESCRIPTION JPS53134821
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an essential part of a
general electrodynamic speaker, FIG. 2 is a plan view showing a receiving part of a flexible lead
of the conventional speaker, and FIG. It is a top view which shows the attachment part of a
flexible lead. In the drawings, the same reference numerals indicate the same or partial box, 1
indicates a diaphragm, 2 ′ indicates a voice coil, 2 indicates a voice coil bobbin, 4 indicates a
flexible lead, 6 indicates a frame, 10 indicates an input terminal, 11 indicates an auxiliary lead,
and 13 indicates It is an auxiliary lead fixing portion.
[Detailed description of the invention] This invention relates to ■ good of @ electric type ス 、 カ
, especially derived from the voice coil to the outside-h ス 千 ス (hardness) of the lead 楡 振動 ピ
ス ト ン ピ ス ト ン 正常 ピ ス ト ン ピ ス ト ン ピ ス ト ン ピ ス ト ン ピ ス ト ン ピ ス ト ン ピ
ス ト ン ピ ス ト ンIt is also possible to eliminate echogenic negative effects that occur in the
absence of an obstruction. In general, a cone-type loudspeaker is constructed as shown in FIG.
That is, 2 in FIG. 1, (1) is a diaphragm,..., 2; is a voice coil, and (2) is a voice coil bobbin having
(1), a first name, a first name and a 1 'name. 4+ is a magnetic circuit air gap, (4) is a flexible lead
connecting the voice coil input portion and the speaker input terminal, (5) is a damper, (6) is a
frame, (7) is a magnet, (8) is pole heath, 9: e plate, 03 idxy,), aJl-t Tas) -11-yanop. This speaker is
configured as f't is a magnetic circuit air gap (3) ni.o. electromagnetic wave generated in
response to an electrical signal applied to the voice coil (d) through the flexible lead (4) It
vibrates by force. In the conventional speaker, the method of mounting the flexible lead (4) in the
conventional speaker is as shown in FIG. Therefore, care is taken to pay attention to the axis of
the hollow cylindrical part, except for the flexible pull reed. If it is difficult to determine this in
the symmetrical position 16: It is difficult to determine, and if the stiffness of the Frekin Pull
Reed (4) is 11 degrees (2) or so, the asymmetry of the fixed position causes asymmetry of the
fixed position. In the case of the vibration portion (diaphragm (1), voice coil (2), damper i 51,
dust cap I), a horizontal circle image may be produced, and as a result, a buzzing noise may be
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generated. Such a phenomenon is remarkable in the high-tone cone-shaped speaker in which the
stiffness of the flexible lead (4) is relatively large as compared with the stiffness of the vibrating
portion support system. In order to eliminate the defect, the flexible lead is regarded as a part of
the S moving part support yarn, and the asymmetry of the flexible lead with respect to @ 1 of the
air gap cylindrical part reduces the effect of this problem. One or more of four bends made of the
same material or the same stiffness as that of the flexible lead at one point are fitted in one or
more symmetrical positions, and are extended over 'Ii'. In this case, one of the auxiliary leads is
internally shouldered by the voice coil bobbin, or the west end is wound around the J4 equivalent
portion (e.g., a frame to λ).
The third and first figures show an embodiment of the present invention, which is added to the
flexible lead f412 for electrical connection (3) '. The auxiliary leads aυ are provided so as to be
symmetrical with respect to the voice coil central axis, and the fixed terminal 08 Kb! Of the frame
6 is provided. In the construction of the present invention, if the auxiliary lead 1 is not provided,
the auxiliary lead can greatly reduce the vibration caused by the flexible IJ-node for electrical
connection. This invention provides a method of eliminating the abnormal sound (bibili) defect
due to the lateral vibration of the electrodynamic speaker, which is conventionally considered
difficult, with a small amount of material and labor. In addition, although the cone type
electrodynamic speaker was described above, the same effect is acquired also with other
electrodynamic speakers, such as a dome shape.
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