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JPS5525265

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DESCRIPTION JPS5525265
Description 11 Title of Invention
Multiple moving coil speaker
3. Detailed Description of the Invention The present invention relates to a moving coil type
speaker. Conventionally, in a car stereo speaker apparatus and a stereo mini-speaker apparatus
using a moving coil type speaker, the speaker box is miniaturized, so that the reproduced sound
with the bass region extremely suppressed is mainly composed of middle and high pitched
sounds. The sound was narrow in the dynamic range. Still, in a general speaker system, a multiway system in which a woofer speaker and a guitar speaker are separately provided can
reproduce sound with excellent quality, but the frequency in the low frequency range (200 Hz or
less) It is an object of the present invention to provide a speaker device compensated for a
narrow range and a moving coil type speaker used to obtain an economical speaker device
capable of obtaining high-quality reproduced sound. Hereinafter, the present invention will be
described based on one illustrated embodiment. FIG. 1 is a longitudinal sectional view of the
speaker 1. 2 is a frame, 3 is a cone paper, 4 is a cap, 5 is a damper, 6 is a coil bobbin, 7 is a yoke,
8 is a permanent magnet, and 9 is a center pole. The voice coil 10 and the coil 1 are wound
tightly around the coil bobbin 6 by double winding. The winding start and end points of the coil
10 and the unity are drawn out as child terminals and one terminal, respectively. FIG. 2 is a
connection diagram of a car stereo speaker apparatus using this speaker 1. A speaker 2 is a left
speaker and a 14H right speaker. Each amplifier output is input. The voice coil 10 of the speaker
1 is connected in parallel to the left speaker 2 via the low pass filter 15, and the voice coil uni is
connected to the right speaker 14 via the low pass filter A filter .DELTA.9.5mH inductor,
7.17EndPage: 1 to 6 pf @ + capacitor unit 8 is used to shut off 200 Hz or more. Loudspeaker
12.14 has a diameter of 8 CHM, and a speaker 12.14 has an aperture of 6 Cnl to 3 ocyn. The
12-05-2019
1
impedance is 8 ?. The speaker box for the speaker 2 and 4 has an internal volume of o, 51. The
speaker box for the speaker 1 has an internal volume of 54 or more. The speaker box (the
speaker housed in the speaker box is housed in the rear 4 trunks of the car, etc. Such a
configuration compensates for the extremely low-pitched bass and provides a perfect stereo
feeling. FIG. 3 is a connection diagram of the speaker apparatus using this Sveve Kayu, voice coil
10 / "i direct amplifier output is input, used as full band type, voice coil) paralleled to voice coil
10 via V111d low pass filter 19 It is connected to and used as a low frequency woofer.
The low-pass filter 196 ? ? i comprises an inductance 20 of 9.5 mH and a capacitor 21 of 66
?F to shut off 20 oHz or more. This speaker is of a diameter of ? cm to 2 o ? and has an
impedance of 8 ?. With this configuration, it is economical to obtain the same reproduced sound
as a speaker device in which the woofer and the tweeter are separately configured with one
speaker. FIG. 4 is a connection diagram of a large speaker apparatus using this speaker 1. The
amplifier output is inputted through the voice coil 10 and crossover network 22 and is used as a
woofer. The voice coil unit receives an amplifier input through the low pass filter 19 and is used
as a low pass woofer. The amplifier output is inputted through the speaker 23, the attenuator 24
and the crossover network 22 and is used as a tweeter. Nupikayu has an aperture of 25 GI to
4511 and has an impedance of 8 ?, and the speaker 23 has an impedance of 8 ?. The low-pass
filters 19fi 9 are each composed of an inductance 21 и of 5 mH and a capacitor 20 of 66 ?F. The
crossover network 22 comprises 0.32 m) of an inductor: / 7.25.4.7 ?F (Dml '/ tensor 26) and
the interference frequency is 4000 Hz. The impedance of the attenuator 24 is 8?. This
configuration is economical because the same reproduced sound as that of the speaker device in
which the speaker box is made larger using two woofers can be obtained, and the low-range
dynamic range can be compensated even for the small to medium-sized speaker device.
According to the speaker, since the voice coil unit 0.11 is wound around the coil bobbin 6, as
shown in FIG. 2 and FIG. 3, it can be used for a speaker device that can be used to compensate
for the narrow dynamic range, good quality The reproduced sound can be obtained and an
economical speaker device can be obtained. In the above embodiment, two voice coils 10, J1
wound around the coil bobbin 6 are shown, but three voice coils are wound, two of which are
connected in parallel and connected in parallel. And one of the remainder may also be used as
shown in FIGS.
4. Brief Description of the Drawings FIG. 1 is a longitudinal sectional view of a multiple movable
coil type speaker according to the present invention, and FIGS. 2 to 4 are connection diagrams of
a speaker apparatus using the same speaker. 1 иии Multiple moving coil type speaker, 6 и и и Coil
bobbin, 1011 u и и и voice coil. Patent applicant Shigeru Kobayashi Akira Shimizu et al. 2 others
EndPage: 2 years 1 figure 2 years 2 figure 40337-EndPage: ?
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