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JPS5121332

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DESCRIPTION JPS5121332
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional one,
FIGS. 2 and 4 are cross-sectional views of the present invention, and FIGS. 3 and 5 are plan views
of FIGS. 1 is a diamond flat A, 2 is a drive coil, 3 and 4 is a magnet, 5 is a magnetic plate, 6 and 8
are acoustic radiation holes, and 7 is a magnet plate. 図 1 Fig. 2 / S "" "N" "; '4' N 3 5 5 sheep 2 ′
'芽 ・ ・ ・ 芽 芽 一 一 一 一 一 一 1−2 1−2 51- 21 32 32 2 ′ ′ 7 ′ ′ ′ ′ ′ ′ ′ ′
SNSN5NSNSN $, 5 ′ ′ 3T + p / IN ′, p ′, Sζ, o7I 酌 qQo; s: o) sp, 'N :, 9 / 奄 GN ′ ′, O: S!
O, −Neo ,U)S−98−
[Detailed description of the invention] This tea relates to the uniform drive type electrokinetic
distribution electroacoustic transducer on the whole surface, and its knees make it easy to
improve the assembling accuracy, and to improve the temperament and the acoustic habit. To
aim. No./li5 is a Kundal Thai 1t--an electric sound 変 換 converter of this kind, and l is, for
example, a polyester-diaphragm; It is returned and continuous. The 3 · μ is a ferrite) ff1 stone,
and the coils are arranged on the left and right according to the arrangement pattern of the coil
co. j is a magnet 3 · 4 ct-supporting magnetic plate and has a hole 6 through which the sound is
treated. In the above configuration, the diamond 7mm is slightly opposed to the surface of the
magnet 3 with a slight gap. The interstices require high sugars throughout. Due to irregularities
in the adhesion state of the bending deformation e magnet 3 da of the uniform i # j, etc., the face
of the magnet 3 must be lapped. It takes a lot of time and effort, so it is difficult to get high
molasses. In the case of a one-piece, one-pull type, since it is lapped on a single stone opposite to
both sides of the diaphragm l, it takes a double time. In view of this point, the present invention
alternately magnetizes the a-plexus in accordance with the arrangement pattern of the driving
coil 2 in a single magnet 1 [7], and the stone plate 7 (the acoustic radiation hole has a required
size , Shape, number 4 provided. FIG. 2 and the view are two embodiments with different shapes.
According to the present invention, since the magnetic plate j in FIG. 1 of the prior art is provided
with a heat exchange radiation hole lt in the heat plate (1) (2)-stone plate 7, II stone 70 surface ts
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writing finish. The lapping process is omitted, and the bag itself is self-retained by keeping m
uniform with the diaphragm l. Therefore, the pressure on the set M is greatly reduced, and there
is an effect that good performance can be obtained in both high and low 11 steps, both single
pass and single pass.
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