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JP2017055437

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP2017055437
Abstract: The present invention provides a speaker device capable of achieving high strength in
connection between an outer edge area of an edge and a mounting portion of a frame while
achieving downsizing without sacrificing the width of a diaphragm or an edge. A diaphragm for
emitting sound, an edge (12) provided on the outer periphery of the diaphragm, and an annular
attachment portion (13a) provided on the outer periphery of the edge (12) to which an outer
edge region (12b) of the edge is connected The frame 13 and the connecting member 17
sandwiched between the outer edge area 12b and the attaching portion 13a and bonded to both
are provided, and the inner diameter of the attaching portion 13a is smaller than the inner
diameter of the outer edge area 12b. [Selected figure] Figure 3
Speaker device
[0001]
The present invention relates to a speaker device.
[0002]
Conventionally, a speaker device mounted on an audio device such as a headphone, for example,
is known (see, for example, Patent Document 1).
Most of the speaker devices have a diaphragm that emits sound, an edge provided on the outer
periphery of the diaphragm, and a frame provided on the outer periphery of the edge.
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[0003]
FIG. 1 is a view showing an example of a conventional speaker device.
[0004]
In the speaker device 50 shown in FIG. 1, the outer edge area 51a of the diaphragm 51 is
attached to the inner edge area 52a of the edge 52, and the outer edge area 52b of the edge 52
is connected to the mounting portion 53a provided on the frame 53. There is.
A flexible portion 52c is provided between the outer edge area 52b and the inner edge area 52c
of the edge 52. Due to the flexibility of the flexible portion 52c, the diaphragm 51 is vibratably
coupled to the frame 53 via the edge 52.
[0005]
Here, the edge 52 is often formed of a relatively soft resin, a rubber-based member, or the like so
that good flexibility can be obtained in the flexible portion 52c. On the other hand, the frame 53
is often formed of a relatively hard resin, metal or the like in order to support, for example, a
container such as a magnetic circuit. Thus, the material of the edge 52 and the frame 53 is often
different.
[0006]
Adhesive bonding is often employed to connect the outer edge area 52b of the edge 52 to the
mounting portion 53a of the frame 53. At this time, depending on the combination of the
material of the edge 52 and the frame 53, for example, even if it is intended to directly bond the
outer edge area 52b of the edge 52 to the mounting portion 53a of the frame 53, desired
adhesive strength may not be obtained.
[0007]
Therefore, as shown in FIG. 1, a connecting member 54 made of, for example, paper, resin, or the
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like, which can provide good adhesive strength to both of the outer edge region 52b of the edge
52 and the attachment portion 53a. Bonding has been proposed (see, for example, Patent
Document 2).
[0008]
By the way, in recent years, there has been an increasing demand for downsizing of the speaker
device.
On the other hand, there is a demand that the width of the diaphragm and the width of the edge
be as wide as possible in terms of sound quality.
[0009]
In response to these requirements, for example, when the speaker device 50 shown in FIG. 1 is
miniaturized without sacrificing the width of the diaphragm 51 and the edge 52, the outer edge
region 52b of the edge 52 and the attachment portion 53a are attached The width of the margin
may be, for example, less than 1 mm. In such a case, the width of the connection member 54 is
also often less than 1 mm in accordance with the width of the bonding margin.
[0010]
JP-A-62-98396 JP-A-2001-36987
[0011]
However, the work of bonding the outer edge area of the edge to the mounting portion of the
frame with a thin connecting member having a width of less than 1 mm, for example, is often
difficult in the manufacturing process.
[0012]
For this reason, in the speaker device as shown in FIG. 1, when the size is reduced without
sacrificing the width of the diaphragm or the edge, the desired strength is obtained for the
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connection between the outer edge region of the edge and the mounting portion of the frame.
The problem that it may not be obtained is mentioned as an example.
In addition, although the thing of width less than 1 mm was illustrated as an example of a thin
connection member, the dimension of less than 1 mm is only an example, and even if the width
of the connection member is 1 mm or more, the above Problems can occur.
[0013]
Therefore, the present invention is to provide a speaker device capable of obtaining high strength
in connection between the outer edge area of the edge and the attachment portion of the frame
while downsizing can be achieved without sacrificing the width of the diaphragm or the edge. As
an issue.
[0014]
In order to solve the above-mentioned subject, the invention indicated in Claim 1 is provided in
the diaphragm which radiates sound, the edge provided in the perimeter of the diaphragm, and
the perimeter of the edge, and the outer edge of the edge The frame includes an annular
mounting portion to which the region is connected, and a connecting member sandwiched
between the outer peripheral region and the mounting portion and adhered to both, and the
inner diameter of the mounting portion is the outer peripheral region. It is a speaker device
characterized by being smaller than an inside diameter.
[0015]
It is a figure which shows an example of the conventional speaker apparatus.
It is a figure which shows the speaker apparatus of 1st Example side by side with the
conventional speaker apparatus of FIG.
It is an enlarged view of the adhesion part of an edge and a flame | frame in the speaker
apparatus of 1st Example.
It is a figure which shows the speaker apparatus of 2nd Example side by side with the
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conventional speaker apparatus of FIG. It is a figure which shows the speaker apparatus of 3rd
Example paying attention to the adhesion part of an edge and a flame | frame.
[0016]
Hereinafter, a speaker device according to an embodiment of the present invention will be
described. A speaker device according to an embodiment of the present invention includes a
diaphragm that emits sound, and an edge provided on an outer periphery of the diaphragm.
Furthermore, this speaker device is provided on an outer periphery of the edge, and has a frame
provided with an annular attachment portion to which the outer edge region of the edge is
connected, and a gap between the outer edge region and the attachment portion And a
connecting member. And in this speaker apparatus, the internal diameter of the said attachment
part is smaller than the internal diameter of the said outer edge area | region. Preferably, the
connecting member has a width greater than that of the outer edge area and an inner diameter
smaller than that of the outer edge area. Preferably, the connecting member is annular.
[0017]
Preferably, the connecting member has a width greater than that of the mounting portion and an
inner diameter smaller than that of the mounting portion. As a result, the degree of difficulty in
the manufacturing process is reduced also for the adhesion between the connection member and
the mounting portion of the frame. As a result, the connection between the outer edge area of the
edge and the attachment of the frame is further reduced in the manufacturing process and a
higher strength is obtained for this connection.
[0018]
It is also preferable that the outer diameter of the connecting member be approximately equal to
the outer diameter of the edge. Thereby, for example, the positioning accuracy of the edge with
respect to the frame can be enhanced as compared with the case where the outer edge of the
connecting member and the outer edge of the edge are largely deviated.
[0019]
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Moreover, it is also preferable that the outer diameter of the connection member is substantially
equal to the outer diameter of the attachment portion. Thereby, for example, compared with the
case where the outer edge of the connecting member and the outer edge of the mounting portion
are largely deviated, the positioning accuracy of the edge with respect to the frame at the time of
manufacturing can be enhanced.
[0020]
Further, the connecting member may be bonded to the surface on the sound emitting side of the
mounting portion, and may be bonded to the surface on the side opposite to the sound emitting
side in the outer edge area of the edge. As a result, the worker can perform the bonding
operation from an access direction that is easy for the worker to perform, for example, placing
the outer edge region of the edge to which the connecting member is bonded onto the mounting
portion of the frame from above.
[0021]
Further, the speaker device has a magnetic circuit and a voice coil which receives an audio signal
and vibrates the diaphragm under the action of the magnetic circuit in the frame, and further in
the following mode. It may be. That is, the frame has a surface opposite to the sound radiation
side, an outer surface of the voice coil, and a vent for passing air between the space surrounded
by the inner surface of the frame and the outside of the frame. It may be in the form of being
provided. By providing such a vent in the frame, air permeability of the air in the space with the
outside of the space is secured when the diaphragm vibrates, and the temperature rise of the
magnetic circuit can be suppressed. Here, by using the wide connection member as described
above, the degree of difficulty in the manufacturing process is reduced for the adhesion between
the outer edge area of the edge and the attachment portion of the frame. For this reason, it is
possible to widen the space in the frame by, for example, narrowing the width of the mounting
portion slightly in anticipation of such a reduction in the degree of difficulty. As a result, the air
vents can be formed large to improve the air permeability of the air in the space to the outside of
the space.
[0022]
A speaker device 10 according to a first embodiment of the present invention will be described
with reference to FIG. 2 and FIG.
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[0023]
Part (A) of FIG. 2 shows a conventional speaker device 50 shown in FIG. 1 for comparison with
the speaker device 10 according to the first embodiment.
And the speaker apparatus 10 which concerns on 1st Example is shown by part (B) of FIG. FIG. 3
shows an enlarged view of the connection portion between the edge 12 and the frame 13 in the
speaker device 10 shown in part (B) of FIG.
[0024]
Incidentally, in the part (A) of FIG. 2, components equivalent to the components of the speaker
device 10 of the first embodiment shown in the part (B) of FIG. 2 such as the magnetic circuit etc.
The same reference numerals as in. Hereinafter, these equivalent components will be described
only in the description of the speaker device 10 of the first embodiment, and the description of
the conventional speaker device 50 will be omitted.
[0025]
As shown in FIG. 2, the speaker device 10 includes a diaphragm 11, an edge 12, a frame 13, a
magnetic circuit 14, a voice coil bobbin 15, and a voice coil 16.
[0026]
The speaker device 10 is a so-called dome-shaped speaker device in which a diaphragm 11 that
emits a sound has a dome shape.
The edge 12 is provided on the outer periphery of the diaphragm 11, and the frame 13 is
provided on the outer periphery of the edge 12.
[0027]
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In the speaker device 10, the outer edge area 11a of the diaphragm 11 is overlapped and bonded
to the surface of the inner edge area 12a of the edge 12 opposite to the sound radiation side.
Further, the outer edge area 12 b of the edge 12 is connected to the sound radiation side of the
mounting portion 13 a provided on the frame 13. The attachment portion 13 a is an annular
recess provided on the inner side at the sound radiation side end of the frame 13. The outer edge
area 12b of the edge 12 is fitted in this attachment 13a. Between the outer edge area 12 b and
the inner edge area 12 c of the edge 12, a flexible portion 12 c which is convexly curved toward
the sound radiation side is provided. Due to the flexibility of the flexible portion 12 c, the
diaphragm 11 is vibratably coupled to the frame 13 via the edge 12. In the present embodiment,
the edge 12 is an up-roll type edge in which the flexible portion 12 c is convexly curved toward
the sound radiation side as described above.
[0028]
The magnetic circuit 14 includes a magnet 14a, a yoke 14b through which the magnetism from
the magnet 14a passes, and a plate 14d. The outer periphery of the yoke 14 b is fixed to the
inner wall of the frame 13. An annular magnetic gap 14c is provided between the yoke 14b and
the plate 14d. The voice coil 16 wound around the voice coil bobbin 15 is accommodated in the
magnetic gap 14 c. The surface of the outer edge area 11 a of the diaphragm 11 opposite to the
sound radiation side is fixed to the end of the voice coil bobbin 15 on the sound radiation side.
[0029]
When a voice signal is supplied to the voice coil 16, Lorentz force by magnetism from the
magnetic circuit 14 acts on the voice coil 16 according to the voice signal. As a result, the voice
coil 16 vibrates, and the vibration is transmitted to the diaphragm 11 through the voice coil
bobbin 15. Then, the diaphragm 11 emits a sound by the vibration.
[0030]
The diaphragm 11 shown in part (B) of FIG. 2 corresponds to an example of the diaphragm
according to the present invention, the edge 12 corresponds to an example of the edge according
to the present invention, and the frame 13 is a frame according to the present invention
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Corresponds to one example. The magnetic circuit 14 corresponds to an example of the magnetic
circuit according to the present invention, the voice coil 16 corresponds to an example of the
voice coil according to the present invention, and the frame 13 corresponds to an example of the
frame according to the present invention. .
[0031]
Also, the air vent 13 b for passing air back and forth between the space surrounded by the
surface of the edge 12 opposite to the sound radiation side, the outer surface of the voice coil 16,
and the inner surface of the frame 13 and the outside of the frame 13 Is provided. Air
permeability of the air in the space with the outside of the space can be secured by the air holes
13 b when the diaphragm 12 vibrates, and the temperature rise of the magnetic circuit 14 can be
suppressed. In FIG. 2, a part of the vent 13 b which is not hidden by the voice coil bobbin 15 or
the voice coil 16 is illustrated.
[0032]
Here, the edge 12 is formed of a relatively soft resin, a rubber-based member or the like so as to
obtain good flexibility in the flexible portion 12c. On the other hand, the frame 13 is formed of
relatively hard resin, metal or the like to support the magnetic circuit 14. The connecting
member 17 is sandwiched between the outer edge area 12 b of the edge 12 and the mounting
portion 13 a of the frame 13. The connecting member 17 is annularly formed of, for example,
paper, resin, or the like which can obtain good adhesive strength to both the outer edge area 12b
of the edge 12 and the attachment portion 13a. The connecting member 17 is bonded to the
surface on the sound emitting side of the mounting portion 13 a and is bonded to the surface on
the side opposite to the sound emitting side of the outer edge area 12 b of the edge 12.
[0033]
The manufacturing process in this example is described. First, the outer edge area 11 a of the
diaphragm 11 is bonded to the inner edge area 12 a of the edge 12. Further, the connecting
member 17 is bonded to the surface of the outer edge area 12 b of the edge 12 opposite to the
sound emitting side. Thereafter, the edge 12 with the connecting member 17 is placed on the
surface on the sound radiation side of the mounting portion 13a of the frame 13 and bonded to
the surface. In the speaker device 10 of the present embodiment, the connection to the
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attachment portion 13a of the outer edge area 12b of the edge 12 is performed by the bonding
operation from the access direction that is easy for the operator to perform.
[0034]
In the present embodiment, as shown in FIG. 3, the width A1 of the connection member 17 is
wider than the width A2 of the outer edge area 12b of the edge 12, and protrudes to the inner
peripheral side of the outer edge area 12b. Further, the width A1 of the connecting member 17 is
wider than the width A3 of the mounting portion 13a of the frame 13, and also protrudes to the
inner peripheral side of the mounting portion 13a.
[0035]
Furthermore, the outer diameter of the connecting member 17 is formed to be equal to the outer
diameter of the edge 12. As a result, the outer edge of the connection member 17 is substantially
aligned with the outer edge of the edge. Further, the outer diameter of the connecting member
17 is substantially equal to the outer diameter of the mounting portion 13a, leaving a gap with
the inner wall of the frame 13 necessary when the edge 12 with the connecting member 17 is
placed on the mounting portion 13a. It is formed. Therefore, the outer edge of the connecting
member 17 is substantially aligned with the outer edge of the mounting portion 13a.
[0036]
Here, although the conventional speaker device 50 shown in part (A) of FIG. 2 is miniaturized, the
diaphragm 51 and the flexible portion 52c of the edge 52 are narrowed in the miniaturization. As
a result, narrowing of the bonding margin between the outer edge area 52b of the edge 52 and
the mounting portion 53a of the frame 53 is avoided. Further, in the conventional speaker device
50, the width of the bonding member 54 is substantially equal to the width of the outer edge
area 52b of the edge 52, and the width of the attaching portion 53a.
[0037]
On the other hand, the speaker device 10 according to the present embodiment shown in part (B)
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of FIG. 2 has the diaphragm 11 having the same size as the diaphragm 51 of the conventional
speaker device 50, The flexible portion 12c is downsized while securing a desired size. Therefore,
the width of the outer edge area 12 b of the edge 12 is narrower than the width of the outer edge
area 52 b of the edge 52 in the conventional speaker device 50. Further, the width of the
mounting portion 13a of the frame 13 is also narrower than the width of the mounting portion
53a of the frame 53 in the conventional speaker device 50. On the other hand, the width of the
connection member 17 remains as wide as about the width of the connection member 54 in the
conventional speaker device 50.
[0038]
In the conventional speaker device 50, as described above, the width of the bonding member 54
is substantially equal to the width of the outer edge area 12b of the edge 52 and the width of the
attachment portion 53a. For this reason, as in the speaker device 10 of the present embodiment,
when miniaturization is performed without sacrificing the width of the flexible portion 52c of the
edge 52, the width of the connecting member 54 corresponds to the above-described outer edge
region 52b. And the width of the mounting portion 53a. When the speaker device 50 is
miniaturized without sacrificing the width of the diaphragm 51 and the flexible portion 52c of
the edge 52, the width of the connection member 54 may be less than 1 mm. The work of
connecting the outer edge area 52b of the edge 52 to the mounting portion 53a of the frame 53
with the thin connection member 54 having a width of less than 1 mm interposed therebetween
is often difficult in the manufacturing process. In addition, when the width of the connection
member 54 is narrow, there may occur a problem that high strength can not be obtained in
connection between the outer edge area 52 b of the edge 52 and the attachment portion 53 a of
the frame 53. In addition, although the thing whose width is less than 1 mm was illustrated here
as an example of a thin connection member, the dimension of less than 1 mm is only an example,
and even if the width of the connection member is 1 mm or more Depending on the conditions,
the above problems may occur. In the conventional speaker device 50, in order to avoid such a
problem, the width of the flexible portion 52c of the edge 52 is narrowed as described above,
whereby the narrowing of the width of the connection member 54 is avoided.
[0039]
On the other hand, in the speaker device 10 of the present embodiment shown in part (B) of FIG.
2, the width of the connecting member 17 is the same as that of the related art, while achieving
downsizing while sacrificing the width of the flexible portion 12 c of the edge 12. The connecting
member 54 of the speaker device 50 has a width as large as that of the connecting member 54.
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Thereby, in the speaker device 10 of the present embodiment, the connecting member 17 is
wider than the width of the outer edge area 12 b of the edge 12 and protrudes to the inner
peripheral side of the outer edge area 12 b. In the speaker device 10, by using the connecting
member 17 having such a wide width, the degree of difficulty in the manufacturing process for
bonding the outer edge area 12b of the edge 12 to the connecting member 17 is first reduced. As
a result, the connection between the outer edge area 12b of the edge 12 and the attachment
portion 13a of the frame 13 is less difficult in the manufacturing process. As a result, in the
present embodiment, high strength is achieved for the connection between the outer edge area
12 b of the edge 12 and the mounting portion 13 a of the frame 13 while achieving downsizing
without sacrificing the width of the flexible portion 12 c of the edge 12. It is supposed to be
obtained.
[0040]
Further, in the speaker device 10 of the present embodiment, the connecting member 17 has a
width greater than the width of the mounting portion 13a, and also protrudes to the inner
peripheral side of the mounting portion 13a. As a result, in the speaker device 10, the degree of
difficulty in the manufacturing process of the bonding between the connection member 17 and
the attachment portion 13a of the frame 13 is also reduced. As a result, the connection between
the outer edge region 12b of the edge 12 and the mounting portion 13a is further reduced in the
manufacturing process, and a higher strength can be obtained for this connection.
[0041]
Further, in the speaker device 10 according to the present embodiment, as described above, the
outer diameter of the connection member 17 is formed to be equal to the outer diameter of the
edge 12. As a result, the outer edge of the edge 12 and the outer edge of the connection member
17 are substantially aligned. As a result, in the speaker device 10 of the present embodiment, for
example, the positioning accuracy of the edge 17 with respect to the frame 13 at the time of
manufacture is enhanced compared to the case where the outer edge of the edge 12 and the
outer edge of the connection member 17 are largely deviated. There is.
[0042]
Further, in the speaker device 10 of the present embodiment, as described above, the outer
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diameter of the connection member 17 is formed to be substantially equal to the outer diameter
of the mounting portion 13a. As a result, the outer edge of the mounting portion 13a and the
outer edge of the connecting member 17 are substantially aligned. As a result, in the speaker
device 10 of the present embodiment, for example, the positioning accuracy of the edge 12 with
respect to the frame 13 at the time of manufacture is enhanced compared to the case where the
outer edge of the mounting portion 13a and the outer edge of the connecting member 17 are
largely deviated. ing.
[0043]
Further, in the speaker device 10 of the present embodiment, the air travels between the space
enclosed by the surface on the side opposite to the sound radiation side of the edge 12, the outer
surface of the voice coil 16, and the inner surface of the frame 13 and the outside of the frame
13. The vent holes 13b are provided to suppress the temperature rise of the magnetic circuit 14.
[0044]
A similar air vent 53b is also provided in the frame 53 of the conventional speaker device 50
shown in part (A) of FIG.
However, in the present embodiment, the width of the mounting portion 13 a of the frame 13 is
narrowed in accordance with the width of the outer edge area 12 b of the edge 12. As a result, in
the present embodiment, the space in which the air flowing back and forth through the air vents
13 b is accumulated is wider than the similar space in the conventional speaker device 50. In this
embodiment, the vent 13b is formed larger than the vent 53b in the conventional speaker device
50. Thus, in the present embodiment, the air permeability of the air in the space is improved with
respect to the conventional speaker device 50, and the temperature rise of the magnetic circuit
14 is suppressed.
[0045]
This is the end of the description of the speaker device 10 according to the first embodiment, and
next, the speaker device according to the second embodiment will be described with reference to
FIG.
[0046]
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Part (A) of FIG. 4 shows the conventional speaker device 50 shown in FIG. 1 for comparison with
the speaker device 20 according to the second embodiment.
And the speaker apparatus 20 which concerns on 2nd Example is shown by part (B) of FIG.
[0047]
The speaker device 20 of the second embodiment differs from the speaker device 10 of the first
embodiment in the shapes of the diaphragm 21 and the edge 22. Hereinafter, the speaker device
20 according to the second embodiment will be described focusing on differences from the
speaker device 10 according to the first embodiment. In the part (B) of FIG. 4, the same
components as those of the speaker device 10 of the first embodiment shown in the part (B) of
FIG. 2 are designated by the same reference numerals as the part (B) of FIG. It is done. In the
following, duplicate explanations of these equivalent components will be omitted.
[0048]
The speaker device 20 according to the second embodiment secures a desired size of the
diaphragm 21 while keeping the flexible portion 22c of the edge 22 as wide as the flexible
portion 52c of the conventional speaker device 50. At the same time, miniaturization has been
achieved. Therefore, the position of the outer edge area 21 a of the diaphragm 21 is shifted to
the frame 13 side more than the position of the outer edge area 51 a of the diaphragm 51 of the
conventional speaker device 50. In accordance with this, in the present embodiment, the position
of the flexible portion 22c is shifted to the frame 13 side more than the position of the flexible
portion 52c of the conventional speaker device 50. As a result, the width of the outer edge area
22 b of the edge 22 is narrower than the width of the outer edge area 52 b of the edge 52 in the
conventional speaker device 50.
[0049]
Then, the connection of the narrow outer edge region 22b to the mounting portion 13a of the
frame 13 is performed via the wide connecting member 17 as in the first embodiment. As a
result, the degree of difficulty in the manufacturing process is reduced for connection via the
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connection member 17 to the mounting portion 13 a of the outer edge region 22 b of the edge
22. As a result, in the present embodiment, high strength is obtained for the connection between
the outer edge area 22 b of the edge 22 and the mounting portion 13 a of the frame 13 while
achieving downsizing without sacrificing the size of the diaphragm 21. It has become.
[0050]
This is the end of the description of the speaker device 20 according to the second embodiment,
and next, the speaker device 30 according to the third embodiment will be described with
reference to FIG.
[0051]
The speaker device 30 of the third embodiment differs from the speaker device 10 of the first
embodiment in the shapes of the edge 32 and the attachment portion 33 a of the frame 33.
Hereinafter, the speaker device 20 according to the third embodiment will be described focusing
on differences from the speaker device 10 according to the first embodiment.
[0052]
FIG. 5 shows an enlarged view of the bonding portion between the edge 32 and the frame 33 in
the speaker device 30 of the third embodiment. In FIG. 5, the connecting member which is one of
the components equivalent to the component of the speaker device 10 of the first embodiment
shown in part (B) of FIG. 2 is the same as part (B) of FIG. It is shown with a sign. In the following,
redundant description of the components equivalent to the components of the speaker device 10
of the first embodiment including the connection member 17 will be omitted.
[0053]
As shown in FIG. 5, in the third embodiment, the edge 32 is a down roll type edge in which the
flexible portion 32 c is convexly curved on the side opposite to the sound radiation side. An
annular attachment portion 33 a to which the outer edge region 32 b of the edge 32 is attached
protrudes from the inner wall of the frame 33. The outer edge region 32b of the edge 32 is
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connected to the surface of the mounting portion 33a on the side opposite to the sound radiation
side via the connecting member 17.
[0054]
In the speaker device 30 according to the third embodiment as well, the connection between the
outer edge region 32b of the edge 32 and the attachment portion 32b is achieved by using the
connecting member 17 having the same width as the first embodiment as in the first
embodiment. It goes without saying that high strength is obtained for.
[0055]
In each of the above-mentioned embodiments, although "annular" was not specified, "annular"
referred to here includes "annular" such as annular, elliptical, track shape, rectangular annular,
etc. Such shapes are also included.
[0056]
Further, in each of the above-described embodiments, the dome type is exemplified as the type of
the speaker device.
However, the speaker device is not limited to this, and may be another type of speaker device
such as a cone type, for example.
[0057]
In each of the above-described embodiments, the adhesion between the outer edge area of the
diaphragm and the inner edge area of the edge is performed on the sound emission side of the
outer edge area of the diaphragm and the sound emission side of the inner edge area of the edge.
The form in which the surface is adhered is illustrated.
However, the adhesion between the outer edge area of the diaphragm and the inner edge area of
the edge is not limited to this form, for example, the surface of the outer edge area of the
diaphragm opposite to the sound radiation side and the sound emission of the inner edge area of
the edge It may be in a form in which the side surface is adhered.
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[0058]
Further, in each of the above-described embodiments, the speaker device is exemplified in which
the voice coil bobbin around which the voice coil is wound is fixed to the diaphragm. However,
the speaker device is not limited to this. For example, the voice coil may be directly fixed to the
diaphragm. Further, the speaker device may be, for example, one in which a voice coil or a voice
coil bobbin is fixed to an edge.
[0059]
Further, in each of the above-described embodiments, a speaker device whose size is reduced
without sacrificing the width of either the diaphragm or the edge is illustrated. However, the
speaker device is not limited to this, and may be miniaturized without sacrificing the width of
both the diaphragm and the edge.
[0060]
The above-described embodiment only shows a typical form of the present invention, and the
present invention is not limited to the embodiment. That is, those skilled in the art can carry out
various modifications without departing from the gist of the present invention in accordance with
conventionally known findings. As long as the configuration of the speaker apparatus of the
present invention is provided even by such a modification, it is of course included in the scope of
the present invention.
[0061]
10, 20, 30, 50 Speaker devices 11, 21, 21, 51 Diaphragm 11a, 21a, 51a Outer edge regions 12,
22, 32, 52 52 edges 12a, 22a, 52a inner edge regions 12b, 22b, 32b, 52b outer edge regions
12c, 22c , 32c, 52c Flexible parts 13, 33, 53 Frames 13b, 53b Vents 13a, 33a, 53a Mounting
part 14 Magnetic circuit 15 Voice coil bobbin 16 Voice coil 17, 54 Connection member
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