close

Вход

Забыли?

вход по аккаунту

JPS59139792

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPS59139792
[0001]
In the present invention, the outer diameter side portion is formed of carbon fiber reinforced
olefin, the inner diameter side portion on the side to be fitted to the voice coil bobbin is made of
an insulator such as cloth-containing Bakelite or thermosetting resin, A speaker provided with a
cone-shaped diaphragm. The structure of the speaker will be described with reference to FIG. 1
showing a front sectional view of a conventional speaker and FIG. 2 showing a plan view of a
cone-shaped diaphragm of the speaker. The voice coil 4 is held in a state of being wound around
a voice coil bobbin by the magnetic gap of the magnetic circuit configured by the magnet 21 and
the plate 3 with the pole piece. Further, the voice coil bobbin 6 is fitted and held in a central hole
bored in the central portion of the damper 6. The neck portion of the cone-shaped diaphragm 7
is joined to a point coil bobbin 6 around which the voice coil 4 is wound, and the outer diameter
side is fixed to the frame 10 by means of a screw 8 as well. . Reference numeral 11 denotes a
terminal plate attached to the frame, from which an external lead wire 12 (hereinafter referred to
as the entire system wire 12) made of a gold wire or the like is provided on the cone-shaped
diaphragm 7 for relaying -It is combined with Tome 13. On the other hand, both ends of the read
wire 15 of the voice coil 4 are pulled upward along the voice coil bobbin 5 and guided from the
neck portion of the cone-shaped diaphragm 7 to the upper surface of the cone-shaped diaphragm
7, It is electrically connected to the gold thread 12 by the eyelet 13. In order to prevent dust
from invading the inside of the speaker, a duster 14 is provided at the center of the cone-shaped
diaphragm 7. Such conventional loudspeakers often use paper pulp as the material of the coneshaped diaphragm 7. However, in loudspeakers used for outdoor concerts and the like, the coneshaped diaphragm, which is more than paper pulp, is destroyed due to rain water when it rains,
and this has the disadvantage of causing trouble all over the country. Therefore, a cone-shaped
diaphragm 7 made of a carbon fiber reinforced olefin, which is very excellent in waterproofness,
has recently been used. In this cone-shaped diaphragm 7, since a certain amount of carbon fiber
11-05-2019
1
is mixed so as to enhance the rigidity and improve the speaker characteristics, the cone-shaped
diaphragm 7 has conductivity. However, as shown in FIG. 1 and FIG. 2, when using a cone-shaped
diaphragm 7 consisting only of a carbon-reinforced olefin plate, in the relay eyelet 13, the
distance between the voice coil leads 15 is 7 and the voice coil Current does not flow to 4 and
there is a risk of causing amplifier trouble.
In order to prevent this, it is necessary to electrically insulate the lead wire 16 of the voice coil 4
and the gold wire 12 from the cone-shaped diaphragm 7 in the relay eyelet 13 and the assembly
method. There is a drawback that the cost of the speaker is high due to the complexity. The
present invention eliminates the above-mentioned drawbacks, provides a relay eyelet on a coneshaped diaphragm, and even if a gold wire is fixed to this relay eyelet, no insulation failure
occurs and a cone-shaped diaphragm excellent in water resistance FIG. 3 is a front sectional view
of the loudspeaker according to an embodiment of the present invention, and FIG. 4 is a plan
view and a partially cutaway perspective view of a cone-shaped diaphragm which is a feature of
the loudspeaker in FIGS. Indicates In these figures, the same reference numerals as in FIGS. 1 and
2 showing the conventional speaker are attached to the same parts. The following description
will be given focusing on the cone diaphragm, which is a percentage of the present invention.
The cone-shaped diaphragm 16 shown in FIGS. 3 and 4a and 4b comprises an outer diameter
side portion 18 made of carbon fiber reinforced olefin having conductivity, and an insulating
material such as a cloth-in-baked I bamboo resin thermosetting resin or the like. An inner
diameter side portion 17 is formed. Then, the relay eyelet 19 for relaying the gold wire 12 to the
inner diameter side portion 17 is narrowed. On the other hand, the outer diameter of the coneshaped diaphragm 16 to which the edge 8 is to be bonded (1111 part 18-dicarbon fiber
reinforced olefin is formed of a material, and is conductive but waterproof. The outer diameter
side portion 18 made of the carbon fiber reinforced olefin is formed into a cone by
thermoforming a sheet-like carbon fiber reinforced olefin by a die. At the inner end of the coneshaped outer diameter portion 18, a plurality of sheet layers are formed, and then the outer end
20 of the inner diameter portion 17 is sandwiched between layers of the sheet and heated. By
molding, the outer diameter side portion 18 and the inner diameter side portion 17 are
mechanically coupled to form a complete cone-shaped diaphragm 16. The gold wire 12 and the
end lead wire of the voice coil 4 are soldered to the relay 19 provided on the inner diameter side
portion 17 of the cone-shaped diaphragm 16 formed in this way, and the inner diameter side
portion 17 is By sticking a dustproof 21 made of a carbon fiber reinforced olefin so as to cover
the above, a speaker with excellent waterproofness can be obtained. According to the above
configuration, even if the gold wire 12 is relayed by the relay eyelet 19 on the cone-shaped
diaphragm 16, the insulation defect is not required, the assembling method can be easily
performed, and the speaker manufacturing cost is reduced. It is possible to realize a highly
waterproof input speaker with excellent resistance.
11-05-2019
2
As described above, the speaker according to the present invention has a simple configuration
and an excellent effect, and is an arrow of practical value.
[0002]
Brief description of the drawings
[0003]
1 is a cross-sectional front view of a conventional speaker, FIG. 2 is a plan view of an essential
part of a cone-shaped diaphragm of the same speaker, and FIG. 3 is a cross-sectional front view
of a speaker according to an embodiment of the present invention; And b are a plan view and a
partially cutaway perspective view of a cone-shaped diaphragm which is a feature of the same
speaker.
1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·Frame 11, 11. · · · Terminal plate, 12 · · ·-Gold wire, 15 · · · Lead wire, 16 · · · Cone-shaped
diaphragm, 17 · · · · · Inner diameter side portion 18 · · · · · · · · · · · · · · · relay eyelet. Name of Agent
Attorney Nakao Toshio and one other person $ 1 Figure 2 Figure 2
11-05-2019
3
1/--страниц
Пожаловаться на содержимое документа