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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing the outline of a
conventional speaker system, and FIGS. 2 and 3 are a side view and a front view of the main part
with a portion cut away, FIGS. FIG. 5 is a perspective view and a side view of the main part of the
speaker system according to the present invention, and FIGS. 6 and 7 are perspective views of
the main part of another embodiment. DESCRIPTION OF SYMBOLS 1
···························································· Speakers 3 , 17.20 ... heat pipe.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker system
in which a heat pipe is connected between a magnetic circuit portion of a speaker and a duct
radiator. As is well known, when driving a magnetic circuit, it is recognized that high heat is
generated in the voice coil and the center pole. This is because only about 1 to 2% of the power
supplied from the amplifier to the speaker is diverted to acoustic energy, and the others are
consumed as resistive heat loss and mechanical loss. At this time, the heat generation may reach
160 ° C., and the voice coil itself has an adverse effect on the joint with (1) 7.3 juice and corn
paper, which shortens the life of the speaker. Cover up. Therefore, the allowable input must be
suppressed. In particular, in a small cabinet with a small cooling space (air volume), it has been
difficult to configure a speaker / stem for high output. On the other hand, there is provided a
cooling system in which one end of the heat pipe is coupled to the magnetic circuit portion
including the voice coil etc. and the other end is coupled to the heat pipe disposed outside the
cabinet. However, a speaker / stem having a sufficiently large allowable input can be obtained.
FIG. 1 is a schematic side view showing such a conventional speaker / stem cooling system.
Reference numeral 1 is a cabinet, 2 is a speaker, 3 is a duct radiator, and a heat as shown in FIG.
2 is provided between the magnetic circuit portion (usually upper / lower = central hole of ball)
of the speaker 2 and the duct radiator 3. Pipe 4 is connected. According to this, the heat of the
magnetic circuit portion is transmitted to the duct radiator (2) V 3 through the heat pipe 4, and
the heat is dissipated to the outside. Therefore, cooling of the magnetic circuit is performed
efficiently. By the way, the connection between the duct radiator 3 and the heat pipe 4 has to be
in close contact in order to make the heat conduction efficient, and a strong integration is made.
Therefore, conventionally, as shown in FIGS. 2 and 3, one end of the aluminum pipe 8 is inserted
into the inner rib goo attached to the outer ring 6 constituting the duct radiator 3 via the rib 6,
and this insertion is performed A jig was inserted into the rear aluminum pipe 8 to expand the
aluminum pipe 8 and perform an integration operation so as to be crimped to the inner ring-. 1.
A heat exchange medium such as freon is injected into the aluminum pipe 8 and the end of the
expanded aluminum pipe 8 is squeezed and sealed to obtain the heat pipe 4. However, in such a
conventional cooling system, it is extremely difficult to combine the dogutra / eta 3 and the
aluminum pipe 8 and, further, a cooling medium is injected into the aluminum pipe 8 before such
a coupling is carried out. In order to form 4, the operations of the injection (3 and the abovementioned drawing processing etc. were troublesome.
The present invention ameliorates the problems of the prior art, and therefore, the object of the
present invention is to interpose the completed heat rope into the mounting hook integrally
provided on the duct radiator and An object of the present invention is to provide a loudspeaker
system which is integrally connected to the duct runner by caulking and which is simple and
easy to obtain. Hereinafter, an embodiment of a speaker stem according to the present invention
will be specifically described with reference to the drawings. FIGS. 4 and 5 are a perspective view
showing one embodiment thereof and a side view with a part thereof cut away. A rectangular
duct runner 9 has four through holes 10, and a binding member 12 having a notch 11 is
integrally provided at the center of the lower surface thereof. In addition, the binding member 12
is integrally and simultaneously obtained at the time of molding such as extrusion and drawing of
the duct radiator 9. As materials for these materials, aluminum (4) and other metals having
thermal conductivity and alloys thereof are used. Reference numeral 13 denotes a heat pipe as a
finished product, one end of which is inserted into the binding member 12, and the binding
member 12 is crimped by a jig so that the heat pipe 13 closely contacts the binding member
Combined. FIG. 6 shows another embodiment, in which a substantially Y-shaped binding member
15 is integrally provided on the lower surface of a duct radiator 14 similar to the duct runner 9
described above. The binding member 16 is the holding object 16α. 15h is receded straight
down, and a fine locking ridge 16 is provided on its inner surface. One end of the heat pipe 17 is
interposed between the clamping pieces 15a and 15h from below, and the heat pipe 17 is ducted
by caulking the heat pipe 17 with the clamping pieces 15α and 16b using a predetermined jig.
Integrally coupled to the radiator 14. In this embodiment, since the contact resistance at the time
of bonding is large and the contact area is increased at the mutually intrusive portions, the
thermal conductivity between the heat pipes 17 and the duct run (5) ator 14 is further increased.
Increase. FIG. 7 shows another embodiment. This is what made the duct lager 18 circular. A
binding member 19 similar to that shown in FIG. 4 is integrally provided at the lower portion of
the duct radiator 18 and the heat vibrator 20 is coupled to the binding member 19 in the same
manner as described above. Even if it is such, it is easy to combine. Thus, as can be seen from the
embodiment shown in FIGS. 4 to 7, the heat circuit 13.17.20 with high thermal conductivity and
the magnetic circuit portion (such as a ten-ter-pole) of the speaker and duct radiators 9, 14.18.
Can directly transfer the heat generated when the voice coil or center ball operates to the duct
radiator, so that the heat dissipation efficiency of the magnetic circuit portion can be increased,
and the allowable input of the speaker can be increased. .
In addition, the duct radiators 9 and 14 ° 18 are self-cooled by the inflowing air drawn to the
internal pressure generated by the vibration of the woofer (6), and the above-mentioned heat
radiation action becomes even more effective. In summary, according to the present invention,
one end of the heat pipe is coupled to the magnetic circuit portion of the speaker, and the other
end of the heat pipe is crimped to the mounting hook integrally provided on the duct radiator.
Practical-F is more advantageous because the bonding is simple and reliable, mass production is
possible, and the heat exchange characteristics between these are as good as before b.