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JPH1056681

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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
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DESCRIPTION JPH1056681
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
microphone built-in electronic device suitable for application to, for example, a display device or
the like.
[0002]
2. Description of the Related Art In recent years, in the field of electronic devices with built-in
microphones in the multimedia industry, television conference systems, interactive software, etc.
are actively used due to the spread of personal computers and data communication. ing.
[0003]
On the other hand, in order to make the most of the directivity of the built-in microphone, it is
necessary to arrange the microphone in an infinite space, and therefore, in the case of
incorporating the microphone in the electronic device, it is close to the above condition It is
required to be structured.
[0004]
By the way, as an example of the configuration of a conventional built-in microphone of this type,
a structure having a built-in microphone unit separately from the assembly of the electronic
device is assembled in advance, and this structure is used outside the electronic device. From the
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outside or the inside of the case, the structure itself is assembled so as to be a part of the outer
case of the electronic device.
For this reason, there is a problem that a seam, a gap or a step with the structure is generated on
the appearance of the outer casing, and the appearance design is impaired.
In addition, since the number of parts of the structure is required to be increased, the cost is
increased, and there is also a problem that the assembly, maintenance, and inspection require
time.
[0005]
The present invention has been made to solve the above-mentioned problems, and has a built-in
microphone capable of improving the appearance design and significantly reducing the number
of parts and facilitating assembly, maintenance, and inspection. The purpose is to obtain an
electronic device.
[0006]
[Means for Solving the Problems] In order to achieve the above object, an electronic device with a
built-in microphone according to the present invention comprises: a first sound collection
opening opened in the front of an outer case of the electronic device; It has a second sound
collection opening that is open on the other surface of the outer housing adjacent to the front
surface, and faces the first sound collection opening and the second sound collection opening
inside the outer housing. The microphone unit is held, and the microphone cover is removably
supported on the outer casing so as to cover the first sound collecting opening and the second
sound collecting opening together with the microphone unit.
[0007]
With this configuration, the first sound collection opening and the second sound collection
opening use the outer casing, so that no seams, gaps or steps are produced in appearance. The
appearance design can be improved.
In addition, since only the microphone cover needs to be prepared as a separate member, the
number of parts can be significantly reduced, and assemblability, maintenance, and inspection
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can be facilitated.
[0008]
In addition, the microphone unit is inserted into and attached to the microphone holder provided
in the outer housing, and the microphone unit can be stably held without using a screw by
holding the pin member protruding from the microphone cover. be able to.
[0009]
In addition, the microphone cover can be attached to and detached from the guide rib formed in
the outer casing and has a locking function, so that the microphone cover can be easily attached
and detached, and stable fixing at the time of attachment becomes possible.
[0010]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an electronic
device incorporating a microphone according to the present invention will be described below
with reference to the drawings taking an example applied to a display device.
[0011]
FIG. 1 shows an external view of a display device, in which reference numeral 1 is a front cabinet
of an outer casing, and 2 is a cabinet body.
The central portion of the front cabinet 1 is a display unit 3 composed of a CRT or the like, and 4
is a speaker unit provided on both sides of the front cabinet 1 (only one side is visible in the
figure).
[0012]
The microphone according to the present invention is built in a position biased to one of the
upper portions of the front cabinet 1.
Here, the reference numeral 5 is a first sound collecting opening (hereinafter referred to as a first
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opening) formed of a single round hole formed in the front portion of the front cabinet 1, and the
reference 6 is a first sound collecting opening. The second sound collecting opening (hereinafter
referred to as a second opening) is formed of vertical and horizontal lattice holes formed in the
upper surface portion adjacent to the cabinet front surface portion where the opening 5 is
formed.
[0013]
2 is an enlarged cross-sectional view of the support structure of the built-in microphone taken
along the line A-A of FIG. 1, FIG. 3 is a cross-sectional view taken along the line B-B of FIG. It is a
perspective view.
[0014]
On the back surface of the front cabinet 1 in which the first opening 5 is formed, a cylindrical
microphone holder 7 is integrally formed concentrically with the opening 5.
[0015]
On the back surface of the front cabinet 1 in which the second opening 6 is formed, L-shaped
guide ribs 8 and 8 are integrally formed on both sides of the opening 6.
In the embodiment, a reinforcing rib 9 is formed from one guide rib 8 to the back surface of the
front surface portion of the front cabinet 1.
[0016]
Now, the microphone unit 10 is held by the microphone holder 7 described above.
The microphone unit 10 is capable of collecting sound from both the front side and the back
side, and a cylindrical shock absorbing material 11 such as rubber is inserted into and integrated
with the microphone outer peripheral portion, and the microphone holder 7 is integrated with
the microphone holder 7 via the shock absorbing material 11. It is attached.
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Therefore, the sound collecting unit on the front side of the microphone corresponds to the first
opening 5.
[0017]
The microphone unit 10 is concealed by the microphone cover 12 supported inside the front
cabinet 1.
The microphone cover 12 has a substantially bowl-like shape having the open portions 12a and
12b on the front side and the top side, FIG. 4 is a perspective view seen from the bottom side,
and FIG. 5 is a perspective view seen from the top side .
[0018]
The microphone cover 12 is provided with horizontal flange portions 13 and 13 on the left and
right side edges of the open portion 12b on the upper surface side, and the flange portions 13
and 13 are engaged with the guide ribs 8 and 8 formed on the front cabinet 1 described above. It
can be attached in a sliding manner. The flanges 13 and 13 are formed so as to have some play
in the vertical direction with respect to the guide ribs 8 and 8.
[0019]
On the other hand, the rear end side back surface of the flanges 13, 13 is formed with a low back
inclined rattle absorbing surface 14a, 14a, and the stopper pieces 14, 14 project downward from
the rear end of the flanges 13, 13 It is provided to do. Further, on the upper surface of the rear
end portion of the microphone cover 12, a pair of convex portions 15, 15 having a locking
function are formed.
[0020]
Further, a retaining pin 15 for holding the microphone unit 10 is formed on the bottom of the
microphone cover 12 so as to protrude therefrom. Reference numeral 17 denotes a knob for
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holding the microphone cover 12 with a finger, and reference numeral 18 denotes a notch for
drawing the lead terminal 10 a of the microphone unit 10 out of the cover 12.
[0021]
In the microphone assembly procedure configured as described above, the microphone unit 10 is
first attached to the microphone holder 7, and then the grip portion 17 of the microphone cover
12 is grasped, and the flange portion 13, The microphone unit 10 can be concealed in the
microphone cover 12 by inserting the guide rib 13 in a state of being engaged with the guide
ribs 8 and 8.
[0022]
More specifically, in a state in which the microphone cover 12 is inserted with the flanges 13 and
13 engaged with the guide ribs 8 and 8, the projections 15 and 15 are in frictional contact with
the top surface and the back surface of the front cabinet 1. .
Then, immediately before the opening 12 a on the front side of the microphone cover 12 abuts
on the back of the front side of the front cabinet 1, the protrusions 15 and 15 of the cover 12
engage with the opening edge of the second opening 6 at the same time. The stopper pieces 14,
14 abut against the rear end portions of the guide ribs 8, 8 and the assembly of the microphone
cover 12 is completed.
[0023]
That is, in the assembled state of the microphone cover 12 shown in FIG. 2, the microphone unit
10 is stably held without falling off the microphone holder 7 with the retaining pins 16 erected
from above the bottom surface of the cover 12 on the back surface thereof. can do. Further, the
microphone cover 12 is prevented from moving in the removal direction by the engagement of
the convex portion 15 with the second opening 6, and the stopper piece 14 abuts on the rear end
of the guide rib 8 so as to move in the insertion direction. Is prevented. Therefore, movement of
the cover 12 in the front-rear direction can be restricted and fixed. Furthermore, the cover 12
has the rattle absorbing surface 14 a running on the guide rib 8, and the open portion 12 b on
the upper surface side of the cover 12 is in pressure contact with the upper surface of the front
cabinet 1. Can be prevented reliably.
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[0024]
Further, the microphone cover 12 is removed by pinching and pulling out the knob portion 17 so
that the convex portion 15 on the cover 12 side is disengaged from the second opening 6 and
thereafter the cover 12 is along the guide ribs 8 and 8 It can be pulled out and removed.
[0025]
Thus, the built-in microphone according to the present invention utilizes the portion of the front
cabinet 1 in which the first opening 5 and the second opening 6 are formed as a part of the
structure of the built-in microphone, and The first opening 5 and the second opening 6 are
covered with the microphone cover 12 together with the microphone unit 10 held on the front
surface side sound collecting portion of the microphone unit 10 as a first Sound can be collected
from the opening 5, and can be collected from the second opening 6 to the back side sound
collection unit.
Moreover, since the rear side of the rear side sound collection unit is provided with a sufficient
space by the microphone cover 12, sound can be collected effectively from the second opening 6,
and the directivity of the microphone is improved. Can.
[0026]
In particular, the built-in microphone according to the present invention can stably hold the
microphone unit 10 and securely fix the cover 12 simply by inserting and mounting the
microphone cover 12 from the inside of the front cabinet 1. Therefore, the appearance and
appearance of the built-in microphone according to the present invention can be seen only in the
first opening 5 and the second opening 6 in the front cabinet 1, so that the joint or gap with the
conventional microphone structure or The appearance design can be improved without the
occurrence of a level difference, and the number of parts can be greatly reduced, and assembly,
maintenance, and inspection can be easily performed.
[0027]
The present invention is not limited to the embodiments described above and shown in the
drawings, and various modifications can be made without departing from the scope of the
invention.
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[0028]
In the embodiment, the first opening 5 is shown in the case of one round hole shape, but for
example, a plurality of round holes are formed within a range that does not impair the design, or
a grid like the second opening 6 It may be shaped like a circle.
[0029]
In the embodiment, the mounting position of the built-in microphone is disposed at the upper
front of the front cabinet 1, but may be disposed at the front side or lower of the front cabinet 1.
For example, when arranged on the front side, the first opening 5 is formed in the front of the
front cabinet 1 and the second opening 6 is formed in the adjacent cabinet side.
[0030]
Further, although the case where the present invention is applied to a display device as an
electronic device has been described, the present invention can be widely applied to other
electronic devices or video camera devices compatible with multimedia.
[0031]
As described above, the electronic device with a built-in microphone according to the present
invention includes the first sound collection opening opened in the front of the outer casing of
the electronic device and the outer casing adjacent to the front of the outer casing. A second
sound collection opening opened on the other surface of the body, and the microphone unit is
held inside the outer casing facing the first sound collection opening and the second sound
collection opening; The microphone cover is removably supported on the outer casing so as to
cover the first sound collecting opening and the second sound collecting opening together with
the microphone unit, thereby the first sound collecting opening and the second sound collecting
opening The sound collection opening is formed in the outer casing, and the appearance design
can be improved without the occurrence of seams, gaps or steps in the appearance of the outer
casing.
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In addition, since it is sufficient to prepare only the microphone cover as a separate member, the
number of parts can be significantly reduced, and the assembling and maintenance and
inspection can be facilitated.
[0032]
In addition, the microphone unit is inserted into and attached to the microphone holder provided
in the outer housing, and the microphone unit is stably held without using screws by holding the
pin member protruding from the microphone cover. can do.
[0033]
In addition, the microphone cover is removable along the guide rib formed in the outer casing
and has a lock function, so that the operability of mounting and dismounting the microphone
cover becomes easy, and stable fixation at the time of attachment can be achieved. it can.
[0034]
In addition, by applying an electronic device having a microphone built-in to a display device, it is
possible to improve the appearance design and to improve the productability.
[0035]
Brief description of the drawings
[0036]
1 is a perspective view of a display device incorporating a microphone according to the present
invention.
[0037]
2 is an enlarged sectional view taken along the line AA of FIG.
[0038]
3 is a cross-sectional view taken along the line B-B of FIG.
[0039]
4 is a perspective view of the separated state of each component of the built-in microphone.
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[0040]
5 is a perspective view of the microphone cover seen from above.
[0041]
Explanation of sign
[0042]
DESCRIPTION OF SYMBOLS 1 front cabinet, 5 1st opening part, 6 2nd opening part, 7
microphone holder, 8 guide rib, 10 microphone unit, 12 microphone cover, 13 flange part, 14
stopper piece, 15 convex part, 16 securing pin, 17 knob
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