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Description 1, title of the invention
Headphone device
Detailed Description of the Invention The present invention FiJ11 A self-contained outer shell
that continuously cuts the ambient sound. With regard to the glossy closed type headphone
device, the purpose is to provide a cylinder with a liquid and its vapor '2 inserted into the inside
of the outer shell, and a saturating bag closed with a seal, and #Jb of the outer shell! It is an
object of the present invention to provide a headphone device capable of giving a hearing sound
close to a sense of listening like a speaker listening. Sound kt-When recording with a
microphone, the monitor of the recording material is a headphone device that cuts off the sound
of the sound S, that is, a headphone device of a fine # 1 type or a landscape. However, the
conventional closed head type headphone / 1 fc 11 is different from the listening condition of
the high point because the light, the closed surface surrounding the headphone shell and the
tympanic membrane are exactly the same. That is, in the low frequency range, it is listened to in
EndPage: 1 for elasticity control, but in the case of natural reception, it is heard by speed control.
According to the elastic control 1, not only the large tatami mat is received depending on the
individual difference of the eardrum impedance of the listener, but the effect supply of the
auricle in the middle range characteristic is different from the natural listening etc. There was a
gap. The present invention solves the 1% I'1 subject point 3, and an embodiment thereof will be
described below with reference to the drawings. The first (1) (1) is a headphone shell that cuts
off ambient sound. (The drive unit 1 is driven by a drive unit) + 21 [drive 1 film 131 is driven to
produce a sound. +41.161 is a polyethylene sealed bag in which ether and its vapor are enclosed.
The drive 11 unit (2), the diaphragm (3), and the sealed bag + 41 (61 are provided inside the
headphone shell (1). When an input signal is applied to the headphone device configured as
described above and worn by the listener, the two parts of the vibration 1 [L 131 side and the
outer shell + 11 side are completely bordering on the vibrating membrane (3) If they are
separated, the sound pressure rises in opposite phase. Here, since the boiling point of ether is
close to a normal temperature, the rise of the sound pressure causes the vapor of the ether
enclosed in the sealed bag t4 +, ..., +6+ to be liquefied under pressure. Such an action
corresponds to a significant increase in each closed shaft when viewed from the drive unit (2),
and can be realized as the presence of an ideal sound absorbing material. With this effect, one
ear of the headphone shell (1) is removed, and it is thought that there is no shell I'll at all, and the
speaker has a busy listening feeling l! It can be given to a deceit.
FIGS. 2 to 6 show other embodiments, and the same parts in FIG. 1 have the same reference
numerals. In FIG. 2, (1) is a headphone shell, which is made of metal in this case. Inside the outer
shell (1) is provided with a warm-closed bag 41, and further inside, a diaphragm 1 (a noise metal
plate 16 for separating the outside and the inside of 31), and the noise insulation metal A sealed
bag (5) is provided in contact with the inside of the tank plate (6). The sealed bag + 41.16) is
made of polyethylene, and a liquid having a boiling point around 36 ° C., which is the human
body temperature, and its vapor are enclosed inside. The end of the sealed bag 14), (6) is
provided with a metal plate 17), (8) in contact with the skin of the listener, and the metal plate +
71 ij shell + i'l, nine metal plates 18) Is also thermally coupled to the sound insulating metal plate
rj +. 9 (9) is an air hole for preventing the vibration and the membrane (the air pressure between
the inner side and the outer side being largely different Now, according to the headphone device
of the above configuration, the body temperature of the listener is transferred to the metal plate
(the closed bag 14 through the shell 71 and the outer shell i1'l), the metal plate (8) and the rich
metal plate (6) Since the pressure is transferred to the closed bag (61, i closed 14), the
temperature in + iIl is kept approximately constant □. Therefore, when the listener sees the
headphone device, the inside of the sealed bag 41; (6) can keep a certain constant baby boy. The
same effect can be obtained even if a thermostatic device is provided instead of using the body
temperature of the listener first. Fig. 3 shows another embodiment. In FIGS. 3 to 5, only the
headphone shell (1) is shown, and the diaphragm 131 and the like are omitted and returned. In
FIG. 3, +1 1 is a headphone shell, which is metallic in this case. A heat dissipating fin 101 is
provided in contact with the outer side of the outer shell, and a heat insulating material (II) is
provided beside the outer shell (1) and the heat dissipating fin +101. The heat radiation fin +101
may be provided inside the outer shell 111. According to the headphone device of the above
configuration, the temperature rise inside the pressure change (heat energy generated when
converting ff into energy of evaporation) is caused by the outer shell (1) and the heat radiation
Using the [01] to prevent the heat from being released to the outside air prevents K from
misbehaving. Also, if the temperature inside the outer shell is too low, heat insulation hto) for the
outer shell and the radiation fin (surface M covering 1o1! The ink that is used to make a change.
′。 Another embodiment is shown in FIG. In FIG. 4, (l) is a headphone shell, and in addition to
M, liquid and its vapor, lint α2 is enclosed in the inside of a sealed bag 141 provided in contact
with the inside of the outer & 11). There is.
In the present embodiment, although the lint α2 is used, any porous or non-porous material
having a pro-rice property can be used as the liquid in the inside of 閉 3 瞥 bag + 4'l. □ If the
headphone device of the above configuration is busy, the liquid in the sealed bag + 41 wets the
lint (I2 and increases the contact area between the mosquito liquid and its vapor, so liquid and
air bubbles due to transformation may occur. tighten easily performed by a closed EndPage: 2 is
to obtain a more sensible 11KL the increasing effect of each axis. Fig. 5 shows another
embodiment. In FIG. 6, +11 is a headphone shell, and a sound absorbing material (1 m, for
example, soft fluff) is attached to the exposed surface of the sealed bag +41 in contact with the
inside of the shell 111. According to the headphone device of the above configuration, the sound
in the high sound range is absorbed by the sound absorbing material 1, and the reflection of the
sound by the closed bag 141 can be prevented. As described above, according to the uninvented
headphone device, since the airtightness @ closed bag in which the liquid and its vapor are sealed
is provided inside the headphone outer shell, the speaker even though it is a reception by the
closed type headphone The listener can be given a natural sound quality close to that of the
4. Brief Description of the Drawings FIG. 1 is an explanatory view of a headphone device showing
a superior example of the present invention, and FIGS. 2 to 5 are explanatory views of a
headphone device showing an embodiment of $ 't. . 11 + ... headphone shell, 14'1, 151 ... sealed
bag, (]), (8) ... metal plate, (10 I ... radiation fin, Q 21 ... lint, α J · · · Sound absorbing material Fig.
1? Figure EndPage: 3
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