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JP2005176373

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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 JP2005176373
An object of the present invention is to improve not only the sound output in the front direction
of the speaker unit but also the sound output in the front direction to the rear direction in a
forward direction that can be recognized by the user, and in particular, improve the performance
of reproducing bass. It is an object of the present invention to provide a sound output device of a
portable terminal. In a sound output device of a portable terminal according to the present
invention, a mounting unit provided in a casing of the portable terminal, to which a speaker unit
500 is mounted, and the front-rear direction of the speaker unit 500 A plurality of air ducts for
guiding the sound emitted from the speaker unit 500; and a plurality of sound emission ports
formed in the casing, the sounds guided from the air ducts being emitted to the outside,
respectively. It is characterized by including and comprising. [Selected figure] Figure 1
Sound output device of portable terminal
[0001]
The present invention relates to a portable terminal, and more specifically, to allow the user to
recognize all sounds output in the forward and backward directions of the speaker unit. More
particularly, the present invention relates to a sound output device of a portable terminal capable
of improving the performance of playing bass.
[0002]
In general, a portable terminal is a communication device that allows users to easily transmit and
receive sound to and from other parties while using it easily.
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[0003]
Recently, in addition to simple sound transmitting and receiving functions, many terminals have
been developed with functions to transmit and receive video information.
[0004]
In the first embodiment of the portable terminal, as shown in FIG. 5, a main body 100 provided
with a plurality of function buttons 110 on the entire surface, a holder 200 hinged to the main
body 100, and A display 300 provided on the front and rear surfaces of the holder 200 for
displaying characters and other images, a microphone unit 400 provided on the main body 100
side, a speaker unit 500 provided on the holder 200 side, and the main body 100 And a battery
600 provided on the side.
The unset name code 221 is a through hole.
[0005]
In the conventional portable terminal configured as described above, when the received signal is
displayed on the display 300 or echoed through the speaker unit 500 while being carried by the
user, the user can receive the signal. The holder 200 is opened to transmit / receive sound
information or video information to / from the other party.
When the transmission and reception of the sound information and the video information is
completed, the holder 200 is superimposed on the main body 100 and closed.
[0006]
Meanwhile, the portable terminal may have various forms such as sliding the holder 200 up and
down and rotating the holder 200, as well as the holder 200 coupled to a hinge.
[0007]
The conventional portable terminal configured as described above is not only miniaturized
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because it can be easily carried by the user, but is also researched and developed to be
configured in Compaq because various functions are added. Is in progress.
Also, research and development is underway so that the other party's tone can be received more
clearly, or the notification veil can be more unique and clearly output.
[0008]
In the first embodiment of the conventional portable terminal sound output device, as shown in
FIG. 6, a plurality of through holes 221 formed through one side of the inner case 220
constituting the holder casing 210 and A mounting portion 222 is formed on one side of the
inner case 220 so as to be extended and attached, the mounting portion 222 to which the
speaker unit 500 is mounted, the speaker unit 500 fixedly coupled to the mounting portion 222,
and the inner case 220 The rear case 230 is formed to have a predetermined area and depth, and
includes a rear surface coupling groove 231 to which the rear surface portion of the speaker unit
is coupled.
Further, the inner case and the outer case constitute a holder casing.
[0009]
In addition, the outer shape of the speaker unit 500 is formed in an annular shape. Also, the
mounting portion 222 is formed in a circular shape so as to correspond to the outer shape of the
speaker unit 500. In addition, the rear surface coupling groove 231 is formed in a circular
groove so as to cover the speaker unit 500 mounted on the mounting portion 222 on one surface
of the outer case 230.
[0010]
In addition, since the speaker unit 500 is limited in size in order to miniaturize the size of the
portable terminal, the speaker unit 500 having a relatively small size is used. The small speaker
unit 500 is inserted into and fixed to the mounting portion 222 of the inner case, and is
adhesively fixed by an adhesive in a state where the speaker unit 500 is inserted into the
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mounting portion 222 as the case may be. Then, the outer case 230 is coupled to the inner case
220, whereby the rear surface portion of the speaker unit 500 is inserted into and fixed to the
rear surface coupling groove 231 of the outer case.
[0011]
In the sound output device of the conventional portable terminal configured as described above,
when a sound is output from the speaker unit 500, the output sound may be a plurality of the
sounds formed in front of the speaker unit. It is discharged to the outside through the through
hole 221. The high and low tones emitted through the through holes 221 are transmitted to the
user's ear.
[0012]
However, in the sound output device of the conventional portable terminal configured as
described above, since the size of the portable terminal is limited, the speaker unit 500 having a
relatively large size is used. The use of the speaker unit 500 which is relatively small in size is
disadvantageous in that the output of sound is lowered and the reproduction of the bass sound is
bad and the sound quality is lowered.
[0013]
Also, the sound output from the speaker unit 500 is radiated in the forward and backward
directions of the speaker unit 500, but the sound emitted in the backward direction is in the rear
surface coupling groove 231 of the outer case and the inside of the holder casing 210. Of the
speaker unit 500, because only the sound radiated in the forward direction of the speaker unit
500 is emitted to the outside through the through holes 221. There is a disadvantage that the
sound radiated in the backward direction can not be used.
[0014]
The present invention has been made in view of the above problems, and it is possible to output
not only the sound output in the front direction and the rear direction of the speaker unit in the
front direction that can be recognized by the user. In particular, it is an object of the present
invention to provide a sound output device of a portable terminal capable of improving the
performance of reproducing bass.
[0015]
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In order to achieve the above object, in a sound output device of a portable terminal, a mounting
unit provided in a casing of the portable terminal and to which a speaker unit is mounted, and
from the speaker unit in the front-rear direction of the speaker unit A plurality of air ducts for
guiding emitted sound, and a plurality of sound emission ports formed in the casing and from
which the sound guided from each air duct is emitted to the outside, respectively. It is
characterized by being.
[0016]
Accordingly, the present invention provides the following:
Formed in a casing of a portable terminal, mounting means to which a speaker unit is mounted, a
plurality of air ducts for guiding sound emitted from the speaker unit in the front-rear direction
of the speaker unit, and the casing A sound output device of a portable terminal including a
plurality of sound emitting ports through which sounds guided from the air ducts are
respectively emitted to the outside.
2.
The sound output device of the portable terminal according to item 1, wherein the mounting
means is formed on a holder casing of the portable terminal.
3. The mounting means includes a cylindrical sleeve projecting cylindrically so as to have a
predetermined thickness and height on one surface of the casing, and a cylindrical sleeve on one
surface of the casing so as to be positioned inside the cylindrical sleeve. A sound output device
for a portable terminal according to claim 1, comprising: a circular groove formed to be stepped.
4. The plurality of air ducts include a first air duct for guiding a sound emitted forward of the
speaker unit, and a second air duct for guiding a sound emitted backward of the speaker unit
Item 1. The sound output device of the portable terminal according to item 1, which is
configured. 5. The sound outlet is a first sound outlet from which a sound emitted forward of
the speaker unit is emitted to the outside, and a second sound from which a sound emitted
backward from the speaker unit is emitted to the outside The sound output device of the portable
terminal according to claim 1, comprising an outlet. 6. The sound output device of the portable
terminal according to claim 5, wherein the first sound outlet and the second sound outlet are
respectively formed on the same surface of a casing. 7. The sound output device of the
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portable terminal according to claim 5, wherein the first sound outlet is formed in one or more
through holes. 8. The sound output device of the portable terminal according to claim 5,
wherein the first sound outlet is located inside the attachment means. 9. The sound output
device of the portable terminal according to claim 5, wherein the second sound outlet is formed
in one or more through holes. 10. The sound output device of the portable terminal according
to Item 4, wherein the second air duct is formed in a curved shape so as to diffract the traveling
of the sound wave output from the rear direction of the speaker unit. 11. The sound output
device of the portable terminal according to item 4, wherein the cross section of the second air
duct is not constant. 12. The sound output device of the portable terminal according to claim
11, wherein the second air duct is formed in three regions different in cross-sectional area, and
the cross-sectional area located in the middle region is the smallest. . 13. The second air duct
is formed to have a predetermined shape on one surface of an inner case constituting a holder
casing of the portable terminal and a predetermined shape on a surface of an outer case
constituting the holder casing. 5. The sound output device of the portable terminal of claim 4,
wherein the leaves are interconnected.
14. 14. The sound output device of the portable terminal according to claim 13, wherein a
sealing member for preventing leakage of a sound wave is coupled between the leaves of the
inner case forming the second air duct and the leaves of the outer case.
[0017]
In the terminal sound output device according to the present invention, not only the front sound
and the rear sound output from the speaker unit 500 are output to the outside so that the user
can recognize all sounds, but also after the speaker unit 500. By filtering out the sound output in
the direction and outputting the bass, it is possible not only to reinforce the bass in the existing
output sound to improve the quality of the output sound but also to improve the overall output
sound pressure It has the effect of being able to
[0018]
Hereinafter, the sound output device of the terminal according to the present invention will be
described in detail with reference to the attached drawings The portable terminal according to
the first embodiment of the sound output device of the terminal according to the present
invention As shown in FIGS. 1 and 2, a main body 100 having a plurality of function buttons on
the entire surface, a holder 200 hinged to the main body 100, and front and rear surfaces of the
holder 200 , A display 300 on which characters and other images are displayed, a microphone
unit 400 provided on the body 100, a sound output device provided on the holder 200, and a
battery 600 provided on the body 100. And be configured.
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[0019]
In addition, the main body 100, the display 300, the microphone unit 400, and the battery 600
are general techniques and will not be described in detail.
[0020]
The holder casing 210 forming the appearance of the holder 200 includes an inner case 240
which is in contact with the main body 100 when the holder 200 is closed, and an outer case
250 which is coupled to the inner case 240. And be configured.
[0021]
In addition, the sound output device is provided in the holder casing 210, and a plurality of
attachment means to which the speaker unit 500 is attached, and a plurality of guides for sound
emitted from the speaker unit 500 in the front-rear direction of the speaker unit 500. The
plurality of air ducts, and the plurality of sound outlets formed in the holder casing 210, the
sounds guided from the respective air ducts are respectively emitted to the outside.
[0022]
Further, the mounting means includes a cylindrical rib 243 cylindrically extended so as to have a
predetermined thickness and height on one surface of the inner case 240 constituting the holder
casing 210, and the cylindrical rib 243. And a circular groove 244 formed to be cylindrically
stepped on one surface of the inner case 240 so as to be positioned.
[0023]
The plurality of air ducts may be a first air duct 800 guiding a sound emitted forward of the
speaker unit 500 and a second air duct 700 guiding a sound emitted backward of the speaker
unit 500. And is comprised.
The sound outlets are in communication with the first sound outlet 241 formed in the holder
casing 210 so as to be in communication with the first air duct 800 and with the second air duct
700. And a second sound outlet 242 formed in the holder casing 210.
[0024]
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Also, the first sound outlet 241 and the second sound outlet 242 are respectively formed on one
surface of the inner case 240 of the holder casing.
Preferably, the first sound outlet 241 is formed in the inside of the circular groove 244 which is
the mounting means.
Also, the first sound outlet 241 may be formed in a plurality of through holes.
In addition, as another modification of the first sound outlet 241, it is formed in one through
hole.
Also, the second sound outlet 242 is formed in the inner case 240 of the holder casing at a
predetermined distance from the first sound outlet 241.
Also, the second sound outlet 242 may be formed in a plurality of through holes. Also, as another
modification of the second sound outlet 242, it is formed in one through hole.
[0025]
Also, the speaker unit 500 is mounted inside the cylindrical rib 243 of the mounting means so
that a part of the cylindrical rib 243 forms the first air duct 800. In addition, the speaker unit
500 is mounted such that its front portion is located on the first sound outlet 241 side.
[0026]
Also, the speaker unit 500 may be inserted into and fixed to the inside of the cylindrical rib 243,
and may be attached and fixed by an adhesive.
[0027]
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In addition, the second air duct 700 is formed in a curved shape having a predetermined length
so that the cross-sectional area thereof is not constant.
In addition, the second air duct 700 may be extended and bent into a first pipe portion 710
having a cross-sectional area larger than the outer diameter of the speaker unit 500 and a certain
length, and the first air pipe portion 710. A second pipe section 720 having a smaller cross
sectional area than that of the first pipe section 710; and a third pipe section 730 which is bent
by extension to the second pipe section 720 and has a larger cross sectional area than the
second pipe section 720; It is formed. Also, the cross-sectional area of the first pipe portion 710
and the cross-sectional area of the third pipe portion 730 may be the same as or different from
each other. In addition, the first and third pipe portions 710 and 730 have a circular cross
section. In addition, as a modification of the first and third pipe parts 710 and 730, the first and
third pipe parts 710 and 730 may be formed in various shapes such as a square or an oval.
[0028]
Further, in the second air duct 700, the first pipe portion 710 is inserted and coupled to the
cylindrical rib 243 of the mounting means, and the third pipe portion 730 is fixed and coupled to
the second sound outlet 242 side. . In addition, the first pipe portion 710 is preferably inserted
into the cylindrical reed 243. In addition, the rear surface portion of the speaker unit 500 is
positioned inside the first tube portion 710. In addition, a coupling portion 245 is formed on the
inner case 240 of the holder casing, and the third pipe portion 730 of the air duct is fixedly
coupled to the coupling portion 245. In addition, the connecting portion 245 is formed into a
cylindrical rib having a predetermined height, and the third pipe portion 730 is inserted and
fixed to the inside of the cylindrical rib of the connecting portion 245, and the second sound
outlet is formed. 242 is located inside the cylindrical leaf of the joint 245.
[0029]
As described above, the second air duct 700 may be formed in a single tubular shape, and may
be protruded in a predetermined shape on one surface of the inner case 240 constituting the
holder casing 210 as shown in FIG. It is also possible to form a left leaf 246 and a left leaf 256
projecting in a predetermined shape on one surface of the outer case 250 constituting the holder
casing 210, and by connecting the two leaves 246 and 256. it can. In addition, it is preferable
that a sealing member 260 is coupled between the two leaves 246 and 256 to prevent sound
leakage.
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[0030]
Also, as another modified embodiment of the air duct, the air duct is formed in two or more
inside the holder casing 210, and the sound emission ports correspond to the number of the air
ducts. Two or more are formed in the casing 210.
[0031]
The terminal sound output device according to the present invention may be installed at various
positions of the main body 100 other than the holder 200, and a plurality may be installed on
the holder 200 or the main body 100 of the portable terminal. .
[0032]
Hereinafter, the operation of the terminal sound output apparatus according to the present
invention will be described.
[0033]
The first air duct 800 guides the sound output in the forward direction of the speaker unit 500
that outputs a sound from the speaker unit 500 according to a signal received from the main
body 100 of the mobile phone terminal. The sound emitted to the outside through the sound
emission port 241 and output in the backward direction of the speaker unit 500 is guided
through the second air duct 700 and communicated with the second air duct 700. The sound is
emitted to the outside through the sound outlet 242.
Also, the sound emitted from the first and second sound outlets 241 and 242 is transmitted to
the user's ear.
[0034]
In the process, the sound emitted through the first sound outlet 241 comes out as it is with the
high sound and the low sound outputted to the front of the speaker, and is emitted through the
second sound outlet 242 As for the sound to be generated, the low frequency fielded by the
second air duct 700 is mainly emitted.
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That is, as shown in FIG. 4, the high-pitched sound and the low-pitched sound emitted to the rear
of the speaker unit 500 are advanced through the second air duct 700 in the curved form, and
the low-pitched low-pitched sound is strong against diffraction. It travels through the second air
duct 700 and is discharged through the second sound outlet 242.
On the other hand, high sound with a relatively short wavelength is weak to diffraction, so the
output weakens as it travels through the second air duct 700. Accordingly, since the sound
output through the second sound outlet 242 is mainly a bass, the bass reproduction performance
is improved.
[0035]
As mentioned above, although the present invention is illustrated using a preferred embodiment
of the present invention, the present invention should not be construed as being limited to this
embodiment. It is understood that the scope of the present invention should be interpreted only
by the claims. It is understood that those skilled in the art can implement the equivalent scope
based on the description of the present invention and common technical knowledge, from the
description of the specific preferred embodiments of the present invention. Patents, patent
applications and documents cited in the present specification should be incorporated by
reference to the present specification as the content itself is specifically described in the present
specification. Be understood.
[0036]
FIG. 1 is a perspective view of a portable terminal provided with a first embodiment of a sound
output device of a terminal according to the present invention. 1 is a cross-sectional view of a
terminal sound output apparatus according to the present invention. And FIG. 6 is a crosssectional view of another embodiment of the terminal sound output apparatus according to the
present invention. FIG. 6 is a cross-sectional view showing an operating state of the terminal
sound output apparatus according to the present invention. FIG. 7 is a perspective view of a
conventional portable terminal. 1 is a cross-sectional view of a sound output device of a
conventional portable terminal.
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Explanation of sign
[0037]
240: inner case 241: first sound outlet 242: second sound outlet 243: cylindrical leave 244:
circular groove 246, 256: leave 250: outer case 260: sealing member 500: speaker unit 700: air
duct 800: 1st air duct
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