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JPS5564198

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DESCRIPTION JPS5564198
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional view of the inventive
speaker. 1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
magnetic circuit.
DETAILED DESCRIPTION OF THE INVENTION This invention is a speaker that facilitates heat
dissipation of the voice coil. In the case of a speaker with a large input, the calorific value of the
voice coil due to Joule's heat of voice Ichihara is extremely large, and its heat amount is fast (two
diverging-keeping the temperature of the voice coil for one generation, the speaker's allowance It
is a requirement to use human resources. Thus, the heat of the voice coil is 1 in the air ≦ 2 by 1
or from the tip of the nantapole 7 forming the magnetic wall ボ イ ス 2 close to the voice coil,
and from the vicinity of the upper plate hole j 1 Air 1: through the inside of the center pole,
through the inside of the center plate, and inside the top plate, and dissipated from the outside
surface being touched into the air. Among them, a part of the heat entering the upper plate-22
part plate passes through the magnet in contact, and bends the exposed part of the magnet and
the contact part with the F part plate to air from the exposed part of the lower plate It is
dissipated during. However, since the center pole and the upper and lower plates are '@ iron, the
thermal conductivity is 0.147 because the thermal conductivity is lower than that of the magnet
(ferrite) 0.009, and the unit time is C]. The heat dissipation sensitivity is extremely low, and once
generated, heat is generated in the voice coil and there is no escape because it is not dissipated,
and it is accumulated, so the warmth of the voice coil is high while the input is slightly increased
to make voice When the current is increased, the adhesion of the voice coil is broken, and there
is a defect that the wire is burnt (+). This invention is a large-diameter waste beaker which
eliminates such a drawback, and will be described below with reference to two figures. Since the
upper plate (1) has a relatively large surface area, for example, the heat dissipation device 2 with
a large cooling area such as copper or aluminum, etc., and the outer surface feeling of the lower
plate 1 can be obtained. When heat is applied, copper or 3 has a high thermal conductivity such
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as aluminum (1.928, aluminum 0.4871), so the heat conducted to the plate 1 is 二 2 or more.
Since the temperature rise of the voice coil 3 can be kept extremely low in the air (two out of
order) due to ≦ two, the allowable input of the speaker can be remarkably large and small. 4、
[! li (7 '1 brief' theory 1-,, the figure is this old idea speaker figure 4 letter flight A1 the lower
plate 2 the heat dissipation device 4 the magnetic circuit O3 ','. ・ "," Leather / g4198
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