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JPS5796595

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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
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DESCRIPTION JPS5796595
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a half sectional view showing a conventional
speaker, FIG. 2 is a half sectional view showing one embodiment of the speaker of the present
invention, and FIG. 3 is a processing of voice coil used for the same speaker. FIG. 4 is a
perspective view after processing and FIG. 5 is a half sectional view of FIG. 15 ииииии Magnetic
circuit, 2 d иии иии Frame и и и и и и и и и и и и и и и и и и и и и и и и и dust cap, 23 и и и и и и и и diaphragm и 24 и и и
иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии
ииииииииииииииииииииииииииииииииииииииииииииииииииииии иии V-shaped bonding portion 30, ииииииииииииииииииииииииииииииииииииииии Magnetic gap.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker using a
diaphragm integrally formed with a dust cap, and an attempt is made to improve the voice coil
connected to the diaphragm to improve the characteristics and quality. is there. First and second,
this type of conventional speaker. ??? ?????????? ?? In other words, a plate 2
having a center pole 1 and a ring-shaped magnet 3. Similarly, a frame 6 is connected to a
magnetic circuit 5 constituted by the ring-shaped L-part plate 4. A gasket 7 is attached to the
periphery of the frame 60, and a dust cap 8 is integrated on the inner peripheral surface of the
gasket 7 The peripheral portion of the cone type diaphragm 9 formed in the above is
incorporated using the edge paint 1o, the voice coil 11 is coupled to the boundary portion
between the dust cap 8 and the diaphragm 9, and the middle portion of the voice coil 11 is a
damper 12 and embedded in the magnetic gap 13 of the magnetic circuit 5. The speaker using
the diaphragm 9 integrally formed with the dust cap 8 has one bonding point smaller than that
of the speaker separately formed with the dust cap and the diaphragm, thereby achieving weight
reduction, stability of performance, In particular, the variation is small, and the compliance with
the adhesive does not intervene, so that the high frequency band is extended, and the cost is low
due to the integral molding. Since the cylindrical portion at the upper end of the voice coil 11 is
simply adhered to the rising portion of the dust cap 8, the vibration of the voice coil 11 is
sufficiently transmitted to the dust cap 8 side, but the vibration outside the bobbin of the voice
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coil 11 The high frequency vibration was transmitted to the plate 9 and it was crazy. This is
because the horizontal portion 14 is a high cut filter because there is the horizontal portion 14
between the dust cap 8 and the diaphragm 9. In addition, since the voice coil 11 adheres to
places of the horizontal portion 14 when adhering it, there is a disadvantage that the
characteristics are not stable. As described above, the conventional speaker has a drawback that
high frequency vibration from the voice coil 11 is not transmitted to the diaphragm 9 due to
structural problems, so that high frequency is attenuated and performance is not stable. The
present invention eliminates the above-mentioned conventional drawbacks. Below, an
embodiment of the present invention will be described with reference to FIGS. 416 is a magnetic
circuit, and the magnetic circuit 15 has a plate 17. Ring-shaped magnet
It is also constituted by a ring-shaped upper plate 19. A frame 2 o is coupled to the magnetic
circuit 15, a gasket 21 is coupled to a peripheral portion of the frame 200, and a peripheral
portion of a cone-shaped diaphragm 23 integrally formed with a dust cap 22 at an inner
peripheral edge of the gasket 21. Are bonded through the edge paint 24. A voice coil 26 is
bonded to the boundary between the dust cap 22 and the diaphragm 23 by adhesion. The voice
coil 25 has a coil 27 wound around the lower periphery of a bobbin 26 as shown in FIG. 4 and 6
shown in FIG. 6 and FIG. 6 are alternately bent inward and outward to form a V-shaped bonding
portion 29). The bonding portion 29 is bonded to the boundary between the ?T 6 dust cap 22
and the diaphragm 23 by bonding. The intermediate portion of the voice coil 26 is held by the
damper 30, and the coil portion 27 of the voice coil 26 is fitted into the magnetic gap 31 of the
magnetic circuit 16 without eccentricity. By configuring in this way, the speaker of the present
invention reliably transmits the vibration of the voice coil to both the dust cap and the
diaphragm, without the high frequency band being trapped, and the high frequency band
extended characteristics and In addition, it is possible to make the most of the effect that weight
reduction, stability of performance, and cost reduction can be realized by the configuration in
which the dust cap and the diaphragm are integrated, and slits are alternately formed in the
bobbin. Because it is simply bent, it has the advantage of being easy to process, etc., and becomes
a dog of practical value.
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