close

Вход

Забыли?

вход по аккаунту

?

DESCRIPTION JPS5337411

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
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
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPS5337411
Description 1, title of the invention
Heat-dissipation type speaker 2, range of claim 49 (1) A heat-dissipation type speaker
characterized in that a good conductor of heat is attached to a voice coil driving yoke.
3. Detailed Description of the Invention The present invention relates to a heat dissipating
speaker), and more particularly to a heat dissipating speaker having a high voice coil cooling
effect. A speaker for high power such as a speaker for electric guitars conventionally used is, as
shown in FIG. 1, a cone 4 having a voice coil 1 and supported by a damper 2 at 7 frames 3, a
yoke 5 and a magnet 6, composed of a pole piece 7 and a heat dissipation valve / 8, when voice
current from the amplifier flows to the voice coil 1, the voice coil 1 causes axial motion due to
the influence of the strong magnetic gap. Further, the cone 4 directly connected to the voice coil
1 is moved to emit a sound. When the above-mentioned speaker is operated without being
inserted into the cabinet 9 shown in FIG. The heat generated is transmitted to the yoke 5 and the
magnet 6 ball bead 7 and dissipated to the surroundings through the radiation fin 8 attached to
the yoke 5. In over, especially Futoshiki damage occurs heat of the voice coil 1, depending on the
mounting of the radiating fin 8, it is impossible to perform sufficient cooling of the voice coil 1.
For example, in a speaker with an ambient air temperature of 30 ° C. and a human power of
200 W, the surface temperature of the radiation fin 80 reaches 65 ° C., and the temperature of
the voice coil 1 reaches 145 ° C. Further, as shown in FIG. 1, when the above-mentioned
speaker is installed and operated in the cabinet 9, the heat generated in the voice coil 1 passes
through the yoke 5, the magnet 6, the pole piece 7, the radiation fin 8 and the surroundings.
After the heat is dissipated, as shown by the dotted arrow X in FIG. 1, through the sound
absorbing material 10 in the cabinet 9, EndPage: 1 reaches the inner surface of the cabinet 9 and
is further conducted in the cabinet 9, a solid line It is released to the outside as indicated by the
12-04-2019
1
arrow Y. In this case, the sound absorbing material 10F in the heat radiation path! Since it is
generally known that the heat conductivity is small, the heat transfer by the sound absorbing
material 10 is bad, and the temperature rise of the voice coil 1 becomes even more intense. For
example, in the case of a speaker with an ambient air temperature of 30 ° C. and an input of
200 W, the ambient temperature of the radiation fin 8 reaches 77 ° C., the surface temperature
of the radiation fin 8 115 ° C., and the temperature of the voice coil 1 reaches 195 ° C. As
described above, in the conventional speaker, the voice coil is heated to a high temperature by its
operation, so that the adhesive bonding the voice and the coil is softened or burnt, and further,
the voice coil is broken, etc. Has the disadvantage of The present invention has been made to
solve the above-mentioned conventional problems, and it is an object of the present invention to
provide a heat dissipation type speaker having a high voice coil cooling effect, particularly to a
high power speaker.
A non-inventive heat dissipating type speaker is one that is worn and worn as a voice coil.
Hereinafter, the embodiment of the present invention will be described with reference to FIG. 1
but the same or identical members as in the conventional example of FIG. 1 will not be described
by giving the same reference numerals. FIG. 2 shows an embodiment of the present invention, in
which a heat pipe 11 is attached to the yokes 5 of two speakers to connect them. 3 and 4 are
cross sectional views showing the mounting portion of the heat pipe 11 shown in FIG. The heat
pipe 11 is filled with a heat pipe container 12 formed as a closed container by a hollow metal
rod, a wick 13 of a capillary structure lined on the inner wall of the heat pipe container 12, and
the heat pipe container 12. Water, freon, etc., and a working fluid that easily evaporates near
room temperature. In the present embodiment, the heat generated by the voice coil 1 is
transmitted to the yoke 5, the pole piece 7 and the magnet 6, and the heat is absorbed in the heat
absorbing portion A where the yoke 5 and the heat pipe 11 are in close contact. The working
fluid that has filled the wick 13 is evaporated. Due to this evaporation, the vapor pressure of the
evaporation section rises, and the vapor flows in the direction of lower vapor pressure, ie, the
heat dissipation section B as shown by the dotted arrow P in FIG. The working fluid condensed in
the 0 heat radiating portion B to be discharged flows into the heat absorbing portion A in the
wick 13 as shown by a solid arrow Q in FIG. 4 by the capillary action of the wick 13. Heat is
transported from the heat absorption portion A to the heat dissipation portion B by such an
operation. The work direction temperature difference of the heat pipe 11 is only the minute
temperature difference generated when the working fluid evaporates and the acid 6 and
therefore the yoke 5 and the heat radiation portion B have almost the same temperature. The
heat released in the heat radiating portion B is dissipated to the outside air from the cabinet 9
through the sound absorbing material 10, but by appropriately selecting the shape and size of
the heat radiating fins of the heat pipe 11 in the heat radiating portion B The temperature and
hence the temperature of the yoke 5 can be kept low, which in turn makes it possible to keep the
temperature of the voice coil 1 low. Further, in the non-embodiments, since the yokes 5 of the
plurality of speakers are connected by the heat pipe 11, the heat of the higher temperature yoke
12-04-2019
2
5 (including the heat generated by the temporary excessive input) is a temperature By flowing
into the other speaker having a low heat capacity and a heat radiation area, the heat radiation
effect is enhanced, and the damage to the voice coil 1 is reduced. Of course, the heat pipe 11 may
be attached to the yoke 5 of a single speaker, which is also effective for reducing the temperature
of the voice coil 1.
Furthermore, in the above embodiment, although the case of using the heat pipe 11 is described,
it is sufficient that the heat conductor is substantially a good conductor. Therefore, the same
effect can be obtained by using a metal rod or the like. The present invention, as described above,
mounts a heat good conductor such as a heat pipe to the yoke of the speaker, thereby increasing
the heat radiation effect in the cabinet, and in particular, increasing the temperature of the voice
coil and thus heating the voice coil. It has the effect of being able to prevent deformation or
faults.
4, Brief description of the drawings EndPage: 2 Figure 1 shows the main part of a conventional
high-power speaker unit-4-a cross-sectional view, Figure 2 is a cross-sectional view showing an
embodiment of the present invention ', 3rd Fig. 4 is a cross-sectional view showing the main part
of Fig. 2 and the circulating state of the working fluid. In each drawing V, the same reference
numerals indicate the same or corresponding parts, 1 is a voice coil, 5 is a yoke, 61d magnet, 7 is
a pole piece, 11 is a heat pipe, 12 is a heat pipe container, and 13 is a wick. Agent Tono Nobu(One other person) EndPage: 3
12-04-2019
3
Документ
Категория
Без категории
Просмотров
0
Размер файла
11 Кб
Теги
description, jps5337411
1/--страниц
Пожаловаться на содержимое документа