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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top view of a conventional rectangular flat
loudspeaker, FIG. 2 is a cross sectional view thereof, and FIG. 3 is a perspective view of a two-way
loudspeaker box using the same rectangular flat loudspeaker. FIG. 5 is a sound pressure
frequency characteristic diagram of the same speaker box, and FIG. 5 is a top view showing one
embodiment of the rectangular flat loudspeaker of the present invention. 1 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 и и и и и и и и и и и и и и и и и и 4 и Magnetic gap, 7, 9 и и и и и и Voice coil, 10. 11 и и и и и и и и и и и и и и и и и и и 2
rectangular flat speakers, 13 и и и и и и и high pitch speaker 14 ...... speaker box, 15 ...... mounting
holes, D2. ????????????
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rectangular flat
speaker which drives two points of a first resonance point and a second resonance point which
occur in the major axis direction, and is characteristic when silking into a speaker box as two
ways. It is an object of the present invention to provide a product that enables stable silk-in.
Recently, as shown in FIG. 1 and FIG. 2, a rectangular magnetic surface 1n bar / ? ? dead 2 p
force has been developed and utilized. Ie, the first magnetic field within the rectangular frame 1
The circuit 2 and the second magnetic circuit 3 are attached, and a rectangular wedge vibration
wedge 5 is attached to the peripheral portion of the frame 10 via the edge 4 and the first
resonance point portion of the lower surface of the rectangular half draw frequency 5 is
attached. The voice coil 7 which fits into the magnetic gap 6 of the first magnetic circuit 2 is
coupled. The voice coil 9 which is embedded in the second magnetic flux gap 8 of the second
magnetic path is coupled to the second resonance point portion, and both voice coils 7.9 are held
by the da / pars 10 ? and 11. ing. In the rectangular flat speaker according to this configuration,
since the amplitudes of the portions in both the major axis direction of the rectangular + wedge
vibration treatment 5 are different, the first resonance, +4. A difference occurs in the peak level
of high-frequency resonance on the i drive side and the second large vibration point drive ?
Therefore, such a rectangular flat speaker 12 as shown in FIG. In the cross frequency with the
high-tone speaker 13 and the sound I + dead J-wave number f [in the section of FIG. There is a
drawback that a large heater is produced as a genius, and the characteristic as a sbi can stem is
largely disturbed per 3 KHz, and flat characteristics can not be obtained, as shown in FIG. 1 in the
prior art. Two mounting holes 16 at the side of 1 Because it was installed in the installation
direction can be incorrectly incorporated ++-0 high friend. The present invention eliminates the
above-mentioned conventional defects, and incorporates a speaker box with a very simple
structure into a multi-chaise pigeon, and / or a stem having a flat sound pressure frequency
several percent as a stem. An embodiment of the present invention will be described with
reference to FIG. The specific configuration of the rectangular flat loudspeaker is 11i1-, which is
substantially negative to the conventional one shown in FIG. 1 and FIG. 6) mounting holes 15 in
the frame 1 will be described 10'i 54, that is, the first resonance point driving side of the
mounting holes 15 provided on the long sides of both the l1111 of the VC frame 1 as shown in
FIG. The pitch D2 is wide, and the pitch D3 on the secondary resonance point drive side is
narrow to give directionality to silk-screening of a rectangular flat speaker. Note that the pitch
D2 and D3 is ten J и like D2> It may be D3 or D2 <D3.
With this configuration, the direction of incorporation at the time of incorporation into the ?
Heka Bonox 14 as shown in FIG. It is squeezed by the screw hole of D3 being provided. Thus, as
the built-in direction of the rectangular flat speaker becomes constant, the t's11: +,-] i teacher's I
in the vicinity of the cross frequency with the high + Bladder 11 speaker 13 is also large as
referred to by a solid line. There is no peak, and overall + fence can be made \ t1. As described
below, since the rectangular half-speaker of the present invention is configured, when
constructing the multi-way speaker box), the direction of incorporation into the box is always
10'-65, and the entire system sound J) Flattening of jl & l's special feature in total i) enables high
fidelity reproduction, and the above mentioned fruiting is obtained only by changing the height
of the mounting hole. Of the practical value f1th.
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description, jps57100396
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