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JP2001231088

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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 JP2001231088
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
audio generating apparatus such as a portable terminal, a speaker unit, an audio apparatus
including a television, etc. In particular, the holder for mounting a sound source derives the
sound from other than the diaphragm setting side of the sound source The present invention
relates to a voice generation device having a sub-sound hole that emits derived voice to the
outside of a case.
[0002]
2. Description of the Related Art Heretofore, as a sound generating apparatus having a structure
in which this kind of sound hole has been devised, for example, there has been one disclosed in
Japanese Utility Model Laid-Open No. 61-168793 and shown in FIG. . This conventional sound
generating device has a grid-like sound hole 26 obliquely opened in the cabinet 25 so that sound
from the sound source 27 can pass through. As described above, by providing the sound holes
26 provided in the cabinet 25 of the television obliquely, the sound source 27 is provided on the
side surface, but the sound according to the structure provided with the sound source on the
front surface The sound image, directivity and sound pressure can be secured.
[0003]
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However, such a conventional sound generating device has a problem that sufficient sound
pressure can not be obtained when the front of the diaphragm of the sound source is blocked by
a wall or a figurine or any obstacle. was there. Also, conventionally, in general, the sound emitted
from the sound hole is only from the front side of the diaphragm of the sound source, so the
sound pressure may be insufficient only with the sound obtained from the front side of the
diaphragm of the sound source In such cases, it has been a common practice to change the sound
source to a higher output or to increase the voltage supplied to the sound source. However, there
has been a problem that changing to a high output sound source or increasing the voltage
supplied to the sound source causes a wasteful increase in power consumption.
[0004]
The present invention has been made to solve the above-mentioned conventional problems, and
it is possible to efficiently use the sound derived from the diaphragm without increasing the
power consumption of the sound source or increasing the voltage supplied to the sound source.
The present invention provides a voice generation device that is released to the outside to
increase the sound pressure of the released voice.
[0005]
A voice generating apparatus according to the present invention comprises a sound source for
producing a voice, a main sound hole formed in a casing in the direction of a sound main
generating surface of the sound source, and the sound source for storing the sound source. A
sub-voice comprising: mounting means for deriving a voice generated from another surface other
than the main voice generation surface of the voice; and one or more sub-sound holes provided
in the casing for delivering the voice derived to the outside of the casing And a lead-out structure,
wherein the sound generated from the main sound generation surface of the sound source and
the other surface is emitted to the outside from the main sound hole and the auxiliary sound
hole, respectively.
With this configuration, without increasing the power consumption of the sound source or
raising the voltage supplied to the sound source, the sound derived from the surface other than
the front of the diaphragm can be efficiently released to the outside of the housing and released.
The sound pressure of the voice can be increased.
[0006]
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The sound generation apparatus according to the present invention has a configuration in which
the one or more sub-sound holes are provided in a case opposite to the sound main generation
surface of the sound source. With this configuration, the sound from the back of the diaphragm
is emitted from the sub-sound hole on the back of the case in addition to the main sound, and the
sound obtained from the sound source is given multiple directivity, for example, Even if the
sound hole of the sound is interrupted by some obstacle, the attenuation of the main sound can
be compensated by the sub sound from the back sound hole.
[0007]
The sound generation apparatus according to the present invention has a configuration in which
the one or more sub-sound holes are provided in a housing on the side of the main sound
generation surface of the sound source. With this configuration, the sound from the back of the
diaphragm is emitted from the sub-sound hole on the side of the casing in addition to the main
sound, and the sound obtained from the sound source is given multiple directivity, for example,
Even if the sound hole of the sound is interrupted by some obstacle, the attenuation of the main
sound can be compensated by the sub sound from the back sound hole.
[0008]
The sound generation apparatus according to the present invention has a configuration in which
the one or more sub-sound holes are provided in a case on the front side of the main sound
generation surface of the sound source. With this configuration, in addition to the main sound,
the sound from the back of the diaphragm is emitted from the sub-sound hole on the front side of
the diaphragm, and the sound from the back of the diaphragm is added to the main sound from
the main sound hole. The sound pressure obtained can be enhanced by adding as an auxiliary
sound from the hole.
[0009]
The sound generation apparatus according to the present invention has a configuration in which
the one or more sub-sound holes are provided in a housing in a predetermined angular direction
from the sound main generation surface of the sound source. According to this configuration, the
sound pressure of the voice in any direction can be enhanced by providing the sub-tone hole in
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any direction.
[0010]
The sound generation device in the present invention has a configuration in which a cushion is
held between the mounting means and the housing. With this configuration, the sound emitted
from the opposite side of the diaphragm of the sound source is emitted to the outside of the
housing while suppressing sound leakage by the cushion, and dust and dirt are prevented from
entering the inside of the housing from the sub sound hole can do.
[0011]
The sound generating apparatus according to the present invention has a construction in which
the mounting means is a two-color molded structure made of hard resin and soft resin, and at
least a portion facing the sound source is soft resin and is in close contact with the sound source.
There is. With this configuration, the two-color molding resin can be used as a means for
preventing sound leakage, securing a predetermined sound pressure, and securing a
predetermined sound image, and a structure for holding the two-color molding structure and a
cushion Can also be used in combination.
[0012]
The sound generation device in the present invention has a configuration in which an
electromagnetic shield is provided to the mounting means. With this configuration, since the
holder covers a part or all of the sound source, by using a material having an electromagnetic
shielding effect as the forming material, it is possible to easily provide a structure in which the
sound source is effectively electromagnetically shielded. It is possible to suppress the influence of
electromagnetic noise that the sound source exerts on and off of the voice generator.
[0013]
The voice generation apparatus according to the present invention has a configuration in which
the sub-voice derivation structure is configured in a portable terminal. With this configuration,
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for example, when the sub audio derivation structure is applied to a portable terminal, the sound
pressure emitted from the main sound hole of the receiver is compensated by the sound emitted
from the sub sound hole, for example. Even if the sound pressure from the main sound hole is
insufficient due to the insufficient capacity of the air chamber, the sound pressure shortage can
be solved.
[0014]
The voice generation device in the present invention has a configuration in which the sub-voice
derivation structure is configured as a portable terminal having a hands-free function. With this
configuration, for example, the sound pressure of the sound emitted from the main sound hole of
the handsfree speaker of the portable terminal is compensated by the sound emitted from the
sub sound hole, even if the sound pressure of the sound from the main sound hole is insufficient
The lack of sound pressure can be resolved, and even if the main sound hole is blocked by some
external failure, the sound of the sub sound hole can compensate for the deterioration of the
sound pressure of the main sound hole due to the failure.
[0015]
The voice generating device in the present invention has a configuration of configuring a buzzer
as the sound source. With this configuration, for example, the sound pressure of the sound
emitted from the main sound hole of the buzzer of the portable terminal is compensated by the
sound emitted from the sub sound hole, so that the sound pressure is sufficient even if the sound
pressure of the sound from the main sound hole is insufficient. The shortage can be resolved, and
even if the main sound hole is blocked by some external fault, the sound of the sub sound hole
can compensate for the deterioration of the sound pressure of the main sound hole due to the
failure.
[0016]
The voice generator according to the present invention has a configuration in which a ringing
tone tone generator is configured as the sound source. With this configuration, for example, the
sound pressure of the sound emitted from the main sound hole of the ring tone sound source of
the portable terminal is compensated by the sound emitted from the sub sound hole, even if the
sound pressure of the sound from the main sound hole is insufficient. Even if the sound pressure
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shortage is resolved or the main sound hole is blocked due to some external failure, the sound of
the sub sound hole can compensate for the deterioration of the sound pressure due to the failure.
[0017]
The voice generation method according to the present invention generates voice from a sound
source, generates a main voice from a main sound hole formed in a casing in the direction of the
voice main generation surface of the sound source, and generates the other voice other than the
voice main generation surface of the sound source. The method comprises the steps of: deriving
the sound generated from the surface by the mounting means for storing the sound source; and
releasing the derived sound to the outside of the case from one or more sub-sound holes
provided in the case; It has a configuration in which sounds generated from the main sound
generating surface and the other surface are emitted to the outside from the main sound hole
and the sub sound hole, respectively. With this configuration, the sound emitted from the surface
other than the front of the sound source can be efficiently emitted to the outside of the housing
without increasing the power consumption of the sound source or increasing the voltage
supplied to the sound source. Sound pressure can be increased.
[0018]
The holder in the present invention is stored so as to cover a part or all of the sound source, and
has a configuration for deriving the sound generated from the other surface than the sound main
generation surface of the sound source. With this configuration, it is possible to provide a holder
capable of providing or improving the sound image, directivity and sound pressure of a sound
source by applying the holder to a sound generation device.
[0019]
The holder in the present invention has a two-color molding structure of a soft resin and a hard
resin, and the portion facing the sound source is formed of a soft resin and has a configuration to
be in close contact with the sound source. According to this configuration, it is possible to
suppress the sound leakage of the sound derived from the surface other than the side provided
with the diaphragm of the sound source without using the cushion.
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[0020]
The holder in the present invention has a configuration in which an electromagnetic shield is
provided. With this configuration, it is possible to easily provide a structure in which the sound
source is effectively electromagnetically shielded, and it is possible to suppress the influence of
the electromagnetic noise exerted on the surroundings by the sound source.
[0021]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the
embodiments of the present invention in detail, the background and outline of the present
invention will be described first. Generally, a sound generating apparatus having a diaphragm
generates most of the sound due to the vibration of the diaphragm serving as a sound source
from the front side of the diaphragm and emits it, but the sound due to the vibration of the
diaphragm is on the back side of the diaphragm Has also been released. However, the sound
emitted to the back side of the diaphragm is blocked by the coil of the sound source and the
housing, and is not as large as the sound in the front direction of the diaphragm, but has a size
that can not be ignored.
[0022]
Therefore, by embodying the structure provided by the present invention for guiding the sound
emitted from the back of the diaphragm to the outside of the sound generating device, for
example, in the conventional sound generating device, the front side of the diaphragm is a wall or
a figurine Even if an accident occurs in which sound pressure is attenuated by being blocked by
some obstacle, the sound derived from the back of the diaphragm can compensate for the loss on
the front side of the diaphragm. Alternatively, in the conventional voice generation device, the
directivity of voice can be corrected by the voice generation device of the present invention in
which the directivity of voice is limited to one in the front direction of the diaphragm of the
sound source. Alternatively, even if the sound pressure is insufficient as in the conventional
sound generating device, the voltage applied to the sound source is not increased or the sound
source is replaced with one having a higher sound pressure. Sound pressure can be compensated
by the voice generation device of the present invention. Alternatively, the sound image,
directivity and sound pressure of the sound of the sound generation device can be adjusted by
combining a plurality of auxiliary sound deriving structures according to the embodiments of the
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present invention.
[0023]
Hereinafter, first to seventh embodiments of the present invention will be described in detail with
reference to FIGS. 1 to 18. (First Embodiment) First, the configuration of a voice generation
apparatus according to a first embodiment of the present invention will be described with
reference to FIG. In FIG. 1, the sound generation apparatus in the present embodiment has a
holder 1 as mounting means for storing and mounting the sound source 2, and the holder 1 has
the diaphragm 3 of the sound source 2 in front view There is provided a path 61 for extracting
and passing the generated voice on the back surface (other surface of the front surface) 5
opposite to the surface side. The cushion sheet 4 plays the role of preventing the sound leakage
of the sound on the side of the main sound hole 7 or the entry of dust and dirt from the outside.
[0024]
Further, the main sound hole 7 is a hole for leading the sound generated on the front surface of
the diaphragm 3 of the sound source 2 from the case 8 to the outside. The auxiliary sound hole
91 is a hole for leading the sound generated on the back surface 5 of the diaphragm 3 of the
sound source 2 from the cover 10 to the outside through the path 61. In this example, the sub
sound hole 91 is provided in the cover 10 which forms a case on the back side of the diaphragm
3. The channel 61 is formed by part of the holder 1. In addition, the holder 1 having the path 61
and the sub sound hole 91 constitute a sub sound extraction structure.
[0025]
Next, referring to FIGS. 2 to 4, the holder 1 of the voice generating apparatus according to the
first embodiment of the present invention is used as a mounting means of a handsfree sound
source of a mobile phone having a handsfree function, for example. The operation will be
described. First, as shown in FIG. 2, if the hands-free function is used while the mobile phone is
standing on its own, the sound of the sub sound hole 91 is added to the sound of the main sound
hole 7, and hands free sound of higher sound pressure is obtained. Be In addition, when the user
hears hands-free voice from the position on the cover 10 side, voice can be recognized with
higher sound pressure as compared with the conventional portable telephone without the sub
sound hole 91.
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[0026]
Next, as shown in FIG. 3, the mobile phone as the voice generating device according to the first
embodiment of the present invention is in a state where the main sound hole 7 side is facing
down with the case 8 down and the cover 10 up. The operation will be described with respect to,
for example, the case of placing on a tabletop or on the ground. In this case, since the voice on
the side of the main sound hole 7 is attenuated but the voice on the side of the sub sound hole
91 is directed to the user, the handsfree voice attenuates the sound of the main sound hole 7 as
the voice of the sub sound hole 91 It can be supplemented by
[0027]
Also, as shown in FIG. 4, when the mobile phone is placed on a table, for example, with the case 8
facing up and the cover 10 facing down and the sub sound hole 91 side facing down, the sub
sound is used as handsfree voice. It can be understood that although the sound emitted from the
hole 91 is attenuated, the sound from the main sound hole 7 side is emitted toward the user side,
so that the attenuation of the sound is covered.
[0028]
Second Embodiment Referring to FIG. 5, the structure of a voice generation apparatus according
to a second embodiment of the present invention will be described.
In FIG. 5, the sound generation apparatus in the present embodiment has a holder 1 as a
mounting means for storing and mounting the sound source 2, and the holder 1 includes the
diaphragm 3 of the sound source 2 There is provided a path 62 for extracting and passing the
generated voice on the back surface (other surface of the front surface) 5 opposite to the surface
side. The cushion sheet 4 plays the role of preventing the sound leakage of the sound on the side
of the main sound hole 7 or the entry of dust, etc. from the outside. The main sound hole 7 is a
hole for leading the sound generated in the front of the diaphragm 3 of the sound source 2 from
the case 8 to the outside.
[0029]
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Further, the auxiliary sound hole 92 is a hole for leading the sound generated on the back
surface 5 of the diaphragm 3 of the sound source 2 from the case 8 to the outside through the
path 62. In this example, the sub sound hole 92 is provided in the case 8 which forms a part of
the casing on the side of the diaphragm 3. The cover 10 is engaged with the case 8 to form a
housing. Further, the holder 1 having the path 62 and the sub sound hole 92 constitute a sub
sound extraction structure.
[0030]
Next, referring to FIGS. 6 to 9, the holder 1 of the voice generating apparatus according to the
second embodiment of the present invention is used, for example, as a mounting means of a
handsfree sound source of a portable telephone having a handsfree function. The operation will
be described. As shown in FIG. 6, if the handsfree function is used in a state where the cellular
phone is made to stand on its own, the sound of the sub sound hole 92 is added to the sound of
the main sound hole 7, and hands free sound of higher sound pressure can be obtained. Also, as
shown in FIG. 7, when the mobile phone is placed on the desktop, for example, with the main
sound hole 7 side facing down, the hands-free voice in the main sound hole 7 side is attenuated
but the sub sound hole 92 Since the sound on the side is not blocked, the attenuation of the
sound on the main sound hole 7 side can be compensated by the sound on the sub sound hole 92
side. Also, as shown in FIG. 8, when the mobile phone is placed on the desktop with the main
sound hole 7 facing upward, for example, the hands-free voice also emits the sound emitted from
the main sound hole 7 from the sub sound hole 92 It can be seen that the voice is not attenuated
since the voiced voice is not blocked either.
[0031]
In the second embodiment of the present invention, the sub sound hole 92 is blocked even when
the mobile phone is put down so as to close the main sound hole 7 and placed, for example, on
the desktop or when it is put down so as to be opened. I have not. Further, as shown in FIG. 9, it
goes without saying that, for example, the case where the sub sound hole 92-1 is provided on the
top surface of the casing and the sub sound hole 92-2 is provided on the side is also included in
the scope of the present embodiment. Yes.
[0032]
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Third Embodiment Next, with reference to FIG. 10, the structure of a voice generation apparatus
according to a third embodiment of the present invention will be described. In FIG. 10, the voice
generating device in the present embodiment has a holder 1 as mounting means for storing and
mounting the sound source 2, and the holder 1 has the diaphragm 3 of the sound source 2 in
front view There is provided a path 63 for extracting and passing the generated voice on the
back surface (the other surface of the front surface) 5 opposite to the surface side. The path 63
formed by the holder 1 extends in the front side direction of the diaphragm 3. The cushion sheet
4 plays the role of preventing the sound leakage of the sound on the side of the main sound hole
7 or the entry of dust, etc. from the outside.
[0033]
The main sound hole 7 is a hole for leading the sound generated in the front of the diaphragm 3
of the sound source 2 from the case 8 to the outside. The auxiliary sound hole 93 is a hole for
leading the sound generated on the back surface 5 of the diaphragm 3 of the sound source 2
from the case 8 to the outside through the path 63. In this example, the sub sound hole 93 is
provided on the surface on the same side as the main sound hole 7 with respect to the
diaphragm 3, that is, on the front surface of the case 8 forming a part of the housing. The cover
10 is engaged with the case 8 to form a housing. Further, the holder 1 having the path 63 and
the sub sound hole 93 constitute a sub sound extraction structure.
[0034]
Next, with reference to FIG. 11, the case where the holder 1 of the voice generating apparatus in
the third embodiment of the present invention is used as a mounting means of a handsfree sound
source of a mobile phone having a handsfree function, for example . As shown in FIG. 11, if the
handsfree function is utilized in a state in which the mobile phone is made to stand on its own,
the sound of the sub sound hole 93 is added to the sound of the main sound hole 7 and both
have the same directivity. In addition to the fact that hands-free sound with a higher sound
pressure can be obtained, even when compared to the mobile phones of the first and second
embodiments, when the sound is heard from the main sound hole 7, Sound pressure higher than
that of the mobile phones of the first and second embodiments can be obtained.
[0035]
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11
Fourth Embodiment Next, the configuration of a voice generation apparatus according to a fourth
embodiment of the present invention will be described with reference to FIG. In FIG. 12, the
sound generation apparatus in the present embodiment has a holder 1 as a mounting means for
storing and mounting the sound source 2, and the holder 1 has the diaphragm 3 of the sound
source 2 in front view There is provided a path 64 for extracting and passing the generated voice
on the back surface (the other surface of the front surface) 5 opposite to the surface side. The
path 64 formed by the holder 1 is provided obliquely to the corner formed between the same
side as the main sound hole 7 (that is, the front side of the case 8 on the case 8 side) and the
upper surface side of the case 8 An auxiliary sound hole 94 is provided at the corner of the case
8 at the outlet. The cushion sheet 4 plays the role of preventing the sound leakage of the sound
on the side of the main sound hole 7 or the entry of dust, etc. from the outside.
[0036]
Further, the main sound hole 7 is a hole for leading the sound generated on the front surface of
the diaphragm 3 of the sound source 2 from the case 8 to the outside. The auxiliary sound hole
94 is a hole for leading the sound generated on the back surface 5 of the diaphragm 3 of the
sound source 2 from the case 8 to the outside through the path 64. The cover 10 is engaged with
the case 8 to form a housing. In addition, the holder 1 having the path 64 and the sub sound hole
94 constitute a sub sound extraction structure.
[0037]
In the portable terminal according to the fourth embodiment of the present invention, as
described in the description of the second embodiment and the third embodiment, the sub sound
hole is not necessarily perpendicular to the main sound hole, and the back surface It can be
understood that even if it is not provided in the direction or the front direction, it may be
provided at an arbitrary angle. Even with such a configuration, it is possible to compromise the
second embodiment and the third embodiment described above so as to have an effect having
both effects.
[0038]
(Fifth Embodiment) Next, with reference to FIG. 13, the structure of a voice generation apparatus
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according to a fifth embodiment of the present invention will be described. In FIG. 13, the voice
generating device in the present embodiment has a holder 1 as mounting means for storing and
mounting the sound source 2, and the holder 1 has the diaphragm 3 of the sound source 2 in
front view A path for leading and passing the generated sound is provided on the back surface
(the other surface of the front surface) 5 opposite to the surface) side, and a sub sound hole 95
for emitting the sound is provided on the cover 10 beyond that.
[0039]
Further, the sound generation device in the present embodiment holds the cushion 11 between
the sound source 2 and the holder 1 and also holds the cushion 12 between the holder 1 and the
cover 10. Conventionally, a structure in which a cushion is held between the side of the sound
source 2 on which the diaphragm 3 is provided and the housing is general. However, the purpose
of the cushion in that case was to suppress sound leakage around the front of the diaphragm and
to prevent the entry of dust and dirt. In the present embodiment, as a feature of the present
invention, the cushion 11 and the cushion 12 are provided on the side of the sub sound hole 95
as one of the measures to prevent and effectively utilize the sound leakage of the sound from the
sub sound hole 95. It is It is needless to say that the cushion 11 and the cushion 12 can also
serve as an intrusion preventing effect of dust and dirt from the sub sound hole 95. Further, the
cushions do not necessarily have to be provided for both the cushion 11 and the cushion 12, and
only one of them may be provided if the performance is sufficient. The other configuration is the
same as that shown in FIG. 1, and the holder 1 and the sub sound hole 95 constitute a sub audio
derivation structure.
[0040]
In the fifth embodiment of the present invention shown in FIG. 13, the shape of the holder 1 is
formed according to the first embodiment shown above, and the sub sound hole 95 is on the
back side of the diaphragm 3 of the sound source 2. However, the present invention is not
limited to this position and arrangement, and the present embodiment has been described as an
example of the embodiment for setting the cushion also on the side of the sub sound hole.
[0041]
Sixth Embodiment Next, referring to FIG. 14, a voice generation apparatus according to a sixth
embodiment of the present invention will be described.
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In FIG. 14, the holder 1 as mounting means for storing and mounting the sound source 2 of the
voice generating device in the present embodiment is formed of a two-color molding structure of
hard resin 13 and soft resin 14. The soft resin 14 of the holder 1 improves the adhesion between
the holder 1 and the sound source 2 or the holder 1 and the cover 10, similarly to the sound
leakage preventing effect of the cushion 11 or 12 described in the fifth embodiment. The effect
of
[0042]
Thus, for example, the structure without the cushion 11 or the cushion 12 shown in the fifth
embodiment can be realized to reduce the number of parts, and the combined structure of the
cushion 11 or the cushion 12 and the soft resin 14 makes Effects such as high sound leakage
prevention measures, predetermined sound pressure securing, and predetermined sound image
securing can also be obtained. Further, the other configuration is the same as that shown in FIG.
1, and the sound hole, the sound guide tube 125 and the sub sound hole 195 constitute an audio
deriving structure. The other configuration is the same as that shown in FIG. 1, and the holder 1
and the sub sound hole 95 constitute a sub audio derivation structure.
[0043]
In the sixth embodiment of the present invention shown in FIG. 14, the shape of the holder 1 is
shown according to the holder 1 of the first embodiment, and the sub sound hole 96 is a back
surface of the diaphragm 3 of the sound source 2. Although provided on the side, it is described
as an example of the embodiment when setting the two-color molding structure according to the
present embodiment, and it is not particularly limited to this position and arrangement.
[0044]
Seventh Embodiment Next, with reference to FIG. 15, a voice generation apparatus according to a
seventh embodiment of the present invention will be described.
In FIG. 15, a holder 17 as mounting means for storing and mounting the sound source 2 of the
sound generating device in the present embodiment has a structure having an electromagnetic
shielding effect. The means for providing an electromagnetic shielding effect may be a method of
metal deposition on the holder 17, a method of metal coating, or a holder itself made of metal,
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and the means is not particularly limited. As described above, the holder in each embodiment of
the present invention has a structure that covers part or all of the functional sound source, so by
using the present embodiment, the auxiliary sound is derived while the sound source is
simultaneously electromagnetic A structure for shielding can be easily provided, and the
influence of electromagnetic noise exerted by the sound source on the inside and the outside of
the sound generator can be suppressed.
[0045]
In FIG. 15, the shape of the holder 17 and the sub sound hole 97 are provided on the back side of
the diaphragm 3 of the sound source 2 taking the first embodiment as an example, but it is not
particularly limited to this arrangement. The other configuration is the same as that shown in
FIG. 1, and the holder 1 and the sub sound hole 97 constitute a sub audio derivation structure.
[0046]
As mentioned above, although each embodiment of this invention was mentioned as a hands-free
sound source of a mobile telephone, it is not limited only to the hands-free sound source of such
a mobile telephone.
[0047]
For example, each embodiment of the present invention can be used for a PHS, hands-free sound
source of a household telephone and a wireless device, or a buzzer sound source, or a ringing
tone sound source.
In addition to the PHS, the wireless device, and the home telephone, for example, as shown in
FIG.
Further, for example, as shown in FIG. 17, a sub sound hole 9 may be provided in addition to the
hands-free main sound hole 7 in the on-vehicle hands-free unit.
[0048]
In addition, as an example of using the structure of the present invention as a sound source of a
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television, the speaker device exemplified in the description of "the prior art" assumes that a
main sound hole cut obliquely to the side of the television is provided. However, if there is a wall
or a figure or any obstacle in front of the tonic hole, the sound emitted from the tow hole will be
attenuated. Therefore, as shown in FIG. 18, by providing the sub sound hole 9 in each
embodiment of the present invention to the front of the cabinet of the television having the main
sound hole 7 on the side, the attenuation of the sound of the main sound hole 7 is compensated.
Can.
[0049]
The example described above is only an example of the embodiment of the present invention,
and can be applied to any sound generating apparatus. FIGS. 16, 17, and 18 are views showing
only the appearance of the voice generation device, but all of them include the structure capable
of emitting the voice from the sub-sound hole described in each embodiment of the present
invention. Is as described above.
[0050]
In each of these embodiments, a structure to which a cushion is added for measures against
sound leakage from the sub sound hole and sound pressure securing, or a structure for molding
a holder in two colors, or for reducing electromagnetic noise generated by a sound source You
may combine the structure etc. which add an electromagnetic shielding effect with respect to a
holder. Further, it goes without saying that one or more sub sound holes may be used to emit sub
sound by the holder. When a plurality of sub sound holes are provided, the directions in which
the sub sound holes are provided may be a combination of different directions such as a back
surface, a side surface, and an oblique direction.
[0051]
The sound generation apparatus according to the present invention is configured as described
above, and in particular, the sound emitted from the surface other than the front of the
diaphragm of the sound source, for example, the back, etc. By being configured to be released to
the outside of the case, the sound image, directivity, and sound pressure of the obtained sound
can be further improved with flexibility, and at the same time, electromagnetic noise generated
from the sound source can be suppressed. An excellent voice generator can be provided.
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[0052]
Brief description of the drawings
[0053]
1 is a cross-sectional view showing a configuration of a voice generation device according to a
first embodiment of the present invention,
[0054]
2 is a cross-sectional view showing a state in which the voice generation device in the first
embodiment of the present invention is embodied by using the mounting means of the handsfree sound source of the mobile phone, and the mobile phone is placed independently.
[0055]
Fig. 3 The voice generation apparatus according to the first embodiment of the present invention
is embodied by using the mounting means of the hands-free sound source of the mobile phone,
and the sound hole of the hands-free sound source of the mobile phone is turned down and
turned down. Sectional view showing the placed condition,
[0056]
Fig. 4 The voice generation apparatus according to the first embodiment of the present invention
is embodied by using the mounting means of the hands-free sound source of the mobile phone,
and the sound hole of the hands-free sound source of the mobile phone is turned upward and
placed A sectional view showing the condition
[0057]
5 is a cross-sectional view showing a configuration of a voice generation device according to a
second embodiment of the present invention,
[0058]
6 is a cross-sectional view showing the voice generating device according to the second
embodiment of the present invention embodied using the hands-free sound source attachment
means of the mobile phone, and the mobile phone being placed in a self-supporting manner;
[0059]
03-05-2019
17
Fig. 7 The voice generation apparatus according to the second embodiment of the present
invention is embodied by using the mounting means of the hands-free sound source of the
mobile phone, and the sound hole of the hands-free sound source of the mobile phone is turned
down and turned down. Sectional view showing the placed condition,
[0060]
The voice generating device in the second embodiment of the present invention is embodied by
using the mounting means of the hands-free sound source of the mobile phone, and the sound
hole of the hands-free sound source of the mobile phone is turned upward and placed A sectional
view showing the condition
[0061]
FIG. 9 is a perspective view showing the voice generating apparatus according to the second
embodiment of the present invention embodied by using the mounting means of the hands-free
sound source of the mobile phone and providing the sub sound holes on the top and side
surfaces Figure,
[0062]
10 is a cross-sectional view showing a sound generation device according to a third embodiment
of the present invention,
[0063]
11 is a cross-sectional view showing a state in which the voice generation device in the third
embodiment of the present invention is embodied by using the mounting means of the handsfree sound source of the mobile phone, and the mobile phone is placed independently.
[0064]
12 is a cross-sectional view showing a sound generation device according to a fourth
embodiment of the present invention,
[0065]
13 is a cross-sectional view showing a sound generation apparatus according to the fifth
embodiment of the present invention,
03-05-2019
18
[0066]
14 is a cross-sectional view showing a sound generation device according to the sixth
embodiment of the present invention,
[0067]
15 is a cross-sectional view showing a sound generation apparatus according to a seventh
embodiment of the present invention,
[0068]
16 is a perspective view showing an example in which the sound generation device in each
embodiment of the present invention is applied to a stationary speaker.
[0069]
17 is a perspective view showing an example in which the voice generation device in each
embodiment of the present invention is applied to a speaker of a hands-free unit for vehicle use.
[0070]
18 is a perspective view showing a television in a state in which the speaker provided with the
sound generation device in each embodiment of the present invention is attached to the side.
[0071]
19 is a cross-sectional view showing an example of a conventional voice generation device.
[0072]
Explanation of sign
[0073]
Reference Signs List 1 holder 2 sound source 3 diaphragm 4 cushion sheet 5 on the main sound
hole side 5 back 7 main sound hole 8 case 10 cover 11 cushion on the side of the auxiliary sound
hole (holder, between sound sources) 12 cushion on the side of the auxiliary sound hole 13 Hard
resin 14 Soft resin 17 Holder 25 having electromagnetic shielding effect Cabinet 26 in the
embodiment of the conventional sound generation method Sound hole 27 in the embodiment of
the conventional sound generation method Sound source 61 in the embodiment of the
conventional sound generation method, 62, 63, 64, 65 Path 91, 92, 92-1, 92-2 Side hole 93, 94
03-05-2019
19
95, 96, 97 Side hole
03-05-2019
20
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