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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional
electrodynamic speaker, FIG. 2 is a cross-sectional view of an electrodynamic speaker according
to an embodiment of the present invention, and FIGS. FIG. 5 is a cross-sectional view of an
essential part of another embodiment of the present invention, and FIG. 5 is a cross-sectional
view of another embodiment 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 и и и и и и и и и и и и и и и и и и 10 и magnetic fluid flow, 11 и и и ... Liquid for heat transfer.
DETAILED DESCRIPTION OF THE INVENTION The Invention 1 Hoist Coil O Prevents temperature
rise. It is an object of the present invention to provide an electrodynamic speaker which is
capable of alleviating human resistance and eliminating output sound pressure non-linearity. The
present inventors have already proposed @ -electric type loudspeakers that can prevent the
temperature rise of the Heus coil. 2, 1 and the following 0 i JJJ electric type speaker will be
described with reference to FIG. 1 and i) Cabinet. "-"-4 pieces 2 pieces 1 Fig. 1 is a yaw, and a
hifter pole 2 is integrally sentenced on one side of the yoke 1). 3: An annular magnet defined in
1st row 1 and a grooved plate 4 to 4 with an outer surface 3d and an outer circumferential
surface of the o-flat 4 and the above-mentioned hyphen pole. 27) An annular D-air canop is
formed on the outer peripheral surface and 0 curve, 6 и is an rw 7) 7 V-m fixed to the plate 4 and
the outer peripheral portion of 6 diaphragms is inscribed in the frame 5 L The end is 6
diaphragms. 81 'i ? ? ? ? ? ? ? ? ? ? ? ? ? 7 7 D D ? ? D coil hobin 8 Heus coil 9 is
wound around ?)). It is a magnetic fluid filled in a 10 i magnetic cap. This O-Magnetic Fluid 10
has a diameter of about 3 O j or less, a Ferei l), a modified surface, coated with olei 'acid, etc. and
a surfactant, and is colloidally dispersed in a solvent. . In addition, melt, as high-grade fatty acid
ester with little steaminess, as fluorocarbons, fluorocarbons, oil per unit pressure oil, etc.) and so
on)) D matrix fluid 1 o) magnetic in the inside of the canopy / L 'X. ? ? ? Xvkit + D strong
space 0 suction cut down ? Magnetic ultrafine powder "same addition 3) aggregation: d does
not occur. Magnetic fluid 10 or Hois coil 9. Even if it moves, it is stably held in the magnetic gap
L stably. Here, the conductivity of the La-like fluid is determined by the thermal conductivity of
the solvent, and the thermal conductivity of the magnetic fluid is about 0-151 / m-sec.0. , Air Dm
conduction $ 7) In the mouth Fig. 1 which is about 6 to 6 people, heat l or di injection 3) body
10i through the plate generated through the Heus coil 9. The heat is transmitted to the center
ball 2 to prevent the temperature rise of the Heus coil 90, and the human resistance is the same.
The present invention provides a dynamic speaker which can lower the temperature rise of the
conventional example D whistling coil 7: 1 temperature by the above-mentioned prior art D. One
embodiment will be described with reference to FIG. In the second four, 8 'is a coil hohino made
of gold plated foil, and this coil Hohino 8' 0 length 11 is longer than the conventional example,
and the tip of this coil Hoof 78 '(O space between the magnet 3 and the center ball 2 It extends
to the vicinity of the portion O yoke 2.
?????????? ????????? Heat transfer liquid contained in the space enclosed
by Yoke to 9/12 4) 41 and B-to 4 and using Noricon oil, water, alcohol, ester oil, etc. The space
97 is a space D to absorb the heat transfer liquid 127) flow due to the coil 97: 1 distribution, and
to absorb the heat expansion liquid 117) thermal expansion. In addition, the tissue coil 9 which is
overturned with enamel etc. и и и и, the above-mentioned gold-clad foil coil is carried by each coil
Hobin ? '? ? ? ?)) by cleaning rLri, conventional example shown in Figure 1 and 1 Similarly,
41 generated by the Heus coil 9 is a plate 4 via the magnetic fluid 10 '. While being transmitted
to the center pole 2, the heat transfer liquid 11 is filled with a heat transfer liquid 11 via a coil
hobin 8 ? made of gold 14 ? ? i. Center pole diameter = 25?, thickness t 60 ?m aluminum
coil hohin (thermal image 4J2aaJ7m-w и 0K), magnetic cap length = 1mm, water as heat transfer
liquid (thermal conductivity 0, 582J7m-x0i) If the heat resistance of the conventional case shown
in FIG. "" "Also use Norikon oil (heat conductivity 1" heat loss ", L) 60.1 complete 1 / m, plexus .0
8) as a heat transfer liquid, heat J to 1 box The resistance is above conventional example 7) Pl.
31. Fig. 4 (Dama's invention Da'7) implementation ? is shown An annular D block 13 made of a
nonmagnetic material such as aluminum having a good thermal ratio is internally defined in a
series of magnets 37) shown in the third column. In the embodiment shown in FIG. 4, the
projections 14 are formed on the inner peripheral surface of the 13 blocks, and the D block 13 is
brought close to the coil hoshino 8 '. In the embodiment shown in FIG. 5, the liquid 11 is
circulated for heat transfer. In FIG. 6, 16. It is a vibrator formed in the yoke 1 and inserted into
the holes 16, 165 ', and a pop 17 is provided in the middle of the D pipe 150, and the heat
transfer 11 is transferred by the operation of the pop 17'7). Reflux. The heavy metal chillers 1
and 3 are attached to a portion of the 16 pipes, and the heat transfer liquid 11 'd electronic cold
sheet machine 18 which flows back is n, it is D. 19iit child 7 heat sink attached to the reed / ?
18, 20 is the electronic theory '? = 1a: oik = xi source. -\-'I 6 61'] It shows the implementation
applied to the inner magnet type D speaker. However, the above 6 days' 1 '' heat transfer to the
space communicating with the $ air gap Put the liquid for the earth, and fill the magnetic gap
with the fd-like fluid, but this O-clad IL force is.
Saturation flux reservoir 201) Gauss?, 3 ? fluid, magnetic cap H11m, flux density ft 14000
Gauss?-air gear knob filled with rp, 130 cc silicone oil can be enclosed in the air passage. The
present invention has a construction as described in O above, and according to the present
invention, it is possible to quickly dissipate heat generated by the Heus coil and prevent the
temperature rise of the voice coil 7). Loudspeaker 7) 11 can improve the power of the human
power, the advantage can not improve the imprisonment @ homes.
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description, jps55109995
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