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JP2001069589

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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 JP2001069589
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
microphone holder, and more specifically, in a state in which the microphone is held inside the
main body, the microphone is provided so as to be electrically conductive with external members
through connection terminals. Related to the microphone holder.
[0002]
2. Description of the Related Art Heretofore, for example, a microphone has been provided in a
case such as a cellular phone or transceiver, and a microphone holder for holding the
microphone in a predetermined position has been used. Due to the nature of this microphone
holder, it must reliably maintain the conduction between the microphone and an external
member such as a printed circuit board and hold the microphone firmly. Then, the microphone
holder 50 which received a microphone inside and was able to electrically supply the said
microphone and an external member is proposed (for example, Unexamined-Japanese-Patent No.
10-178285).
[0003]
As shown in FIG. 4, the microphone holder 50 has a rubber holder 52 having an inner peripheral
shape substantially the same as the outer peripheral shape of the microphone 51, and an annular
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portion 54 provided so as to be able to receive the rubber holder 52. A plurality of support plate
portions 55 provided on the lower end side of the annular portion 54 in the drawing, and a pair
of leg portions 57 extending downward from the lower end side of the annular portion 54 and
engageable with the external member 56. And is configured. At the lower end side of the rubber
holder 52 in the drawing, engaging protrusions 59 engageable with the holes 55A provided in
the support plate portions 55 are provided. In mounting the microphone 51 on the microphone
holder 50, after the microphone 51 is stored in the rubber holder 52 and then the engagement
protrusions 59 are respectively engaged with the holes 55A, the upper surface of the rubber
holder 52 is a rib 61 of the front case 60. It is performed by pressing.
[0004]
However, in such a microphone holder 50, not only the structure of the microphone holder 50
becomes complicated, but also a plurality of members for holding the microphone 51 are
combined. It has the disadvantage of having to match. In addition, since electrical connection
between the microphone 51 and the external member 56 is performed, connection work such as
soldering is inevitably required, which brings about a disadvantage that the work becomes
extremely complicated. Furthermore, since the rubber holder 52 and the annular portion 54 are
provided in a shape penetrating in the axial direction, the sound input from the upper surface
side in the drawing of the microphone 51 leaks in the downward direction on the opposite side.
There is also the disadvantage of being in a state.
[0005]
SUMMARY OF THE INVENTION The present invention was devised focusing on such
inconveniences, and the object thereof is to maintain the current-carrying state between the
microphone and a predetermined external member in a good condition while maintaining the
inside of the main body. It is an object of the present invention to provide a microphone holder
capable of securely holding the microphone located at the position of (1) and easily performing
the holding operation.
[0006]
SUMMARY OF THE INVENTION In order to achieve the above object, according to the present
invention, there is provided a main body portion provided with an opening portion into which a
microphone can be inserted at one end, and a main body portion supported by the main body
portion A microphone holder provided with a microphone in the main body and a connection
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terminal provided in an electrically conductive manner with respect to the external member, the
main body is provided with a microphone dropout prevention portion, and the microphone
dropout prevention portion is provided in the main body A configuration is adopted in which the
microphone is provided so as to be electrically conductive to the connection terminal while the
microphone is held.
According to such a configuration, the microphone inserted into the main body can be firmly
held while maintaining the current conduction between the microphone and the external
member, and the possibility of the microphone falling off from the main body is effectively
eliminated. can do.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, the
inward end side of the connection terminal located in the main body portion is integrally molded
with the main body portion with the posture separated from the inner surface of the main body
portion as the initial posture. Configurations can also be employed. With such a configuration, for
example, when the initial attitude of the inward end of the connection terminal is at a position in
contact with the electrode surface of the inserted microphone, the contact terminal and the
microphone are energized simply by inserting the microphone into the main body. As a result,
the connection work for energizing the external member and the microphone as shown in the
conventional example can be omitted, and the manufacturing cost can be reduced.
[0008]
Also, a configuration may be adopted in which the sound leakage prevention portion is integrally
formed on the other end side of the main body portion. According to this, it is possible to
eliminate the possibility that the sound input to the microphone from one end side of the main
body portion may be missed at the other end side of the main body portion and the sound quality
of the input sound may be impaired.
[0009]
Furthermore, it is preferable that the sound leakage preventing portion be provided with a
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resilient backup portion along the connection terminal. According to such a configuration, it is
possible to suppress the decrease in elasticity of the connection terminal with time.
[0010]
In the present specification, unless stated otherwise, the terms "upper", "upper" or "upper end"
are used for the upper side in FIG. 2 of the microphone holder, and "lower", "lower" or "lower
end" "Is used on the other side. Moreover, the left-right direction in this specification shall use
FIG. 3 as a reference, unless clearly indicated.
[0011]
Embodiments of the present invention will now be described with reference to the drawings.
[0012]
FIG. 1 shows a schematic plan view of the microphone holder according to the present
embodiment, and FIG. 2 shows a front sectional view of the microphone holder in a state in
which the microphone is received.
In these drawings, the microphone holder 10 is not particularly limited, but in the present
embodiment, it is disposed in a case (not shown) such as a cellular phone or a transceiver. The
microphone holder 10 includes a bottomed container type main body 13 having an opening 12
at one end side, that is, an upper end side into which the microphone 11 can be inserted, and two
connection terminals 15 supported by the main body 13 It is configured.
[0013]
As shown in FIG. 2, the microphone 11 is formed in a substantially cylindrical shape, and has an
upper surface side as a sound receiving surface 17 and a lower surface side as an electrode
surface 18. Further, on the lower surface side of the microphone 11, a closed loop-like
protruding portion 19 is provided along the outer periphery of the microphone 11.
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[0014]
In the present embodiment, the main body portion 13 is integrally formed of a resin material
having elasticity capable of slightly expanding the diameter of the opening 12 by applying an
intentional external force. The main body portion 13 includes a peripheral wall 20 having an
inner peripheral shape substantially the same as the outer peripheral shape of the microphone
11, and a bottom wall 21 as a sound leakage prevention portion connected to the lower end side
of the peripheral wall 20. It is configured as twelve. Further, an undercut portion 24 as a
microphone dropout preventing portion projecting to the center side in FIG. 1 of the peripheral
wall 20 is provided at a circumferential direction substantially 180 degree interval position on
the upper end side of the peripheral wall 20. Thus, the upward movement of the microphone 11
is restricted. Further, a thin elastic backup portion 26 is provided in a central region of the
bottom wall 21 in FIG. 3, and the elastic backup portion 26 is provided in a mountain shape
projecting upward along the connection terminal 15. It is done.
[0015]
In the present embodiment, each of the connection terminals 15 is formed by bending a single
piece of metal by press processing, and is integrally formed with the main body 13 by insert
molding. Each connection terminal 15 is located on the upper surface side of the bottom wall 21
as shown in FIG. 1 and FIG. 3, and has a horizontal surface portion 28 having a region projecting
outward through the peripheral wall 20, and this horizontal surface portion The inner end
portion 29 which is continued to the left end side in FIG. 3 of FIG. 3 and whose front end is
directed obliquely to the upper left direction and is attached to the elastic backup portion 26, and
stands from the right end side in FIG. A rising surface portion 30 embedded in the peripheral
wall 20, an arc-shaped portion 32 connected to the upper end side of the rising surface portion
30, and an outer end 33 connected to the arc-shaped portion 32 and projecting outward ing.
[0016]
Each of the inner end portions 29 has an attitude (see FIG. 3) slightly separated from the surface
of the elastic backup portion 26 as an initial attitude, and has a cantilever plate spring structure
in the main body portion 13. It is provided so as to exert a spring force for pressing the electrode
surface 18 of the microphone 11 received upward. In each inward end portion 29, the left
inward end portion 29 in FIG. 1 presses the center position of the electrode surface 18, and the
inward end portion 29 on the right side in FIG. Provided in Further, each outer end portion 33 is
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elastically deformable in the direction of arrow A in FIG. 3 by being abutted against a
predetermined external member (not shown), and is retractable. Therefore, by pressing the outer
end portion 33 to bring the outer end portion into contact with the outer end portion 33, a good
electrification state with the outer end member is maintained.
[0017]
In the above configuration, the operation of receiving the microphone 11 in the microphone
holder 10 is performed by forcibly pushing the microphone 11 through the opening 12. At this
time, the diameter of the opening 12 is slightly expanded to allow the insertion of the
microphone 11, and the undercut portion 24 engages with the upper end edge of the
microphone 11 in the insertion completed state. When the microphone 11 is received, the
undercut portion 24 and the inward end 29 of the connection terminal 15 sandwich the
microphone 11 in the vertical direction. As a result, the microphone 11 is reliably held from the
axial direction and the radial direction in combination with the tightening action of the peripheral
wall 20, and the inward end 29 presses the electrode surface 18 so that the contact state thereof
is good. It is possible to maintain
[0018]
Therefore, according to such an embodiment, the bottom wall 21 as the sound leakage
preventing portion is integrally formed with the main body portion 13, and the peripheral wall
20 is in close contact with the outer peripheral surface of the microphone 11. The sound applied
to the sound receiving surface 17 of 11 can be reliably prevented from leaking to the lower side
of the main body portion 13 through the inside of the main body portion 13.
[0019]
In the above embodiment, the inward end 29 of the contact terminal 15 has a spring property to
press the electrode surface 18 of the microphone 11, but the present invention is not limited to
this. The height of the elastic backup portion 26 may be made higher than the position shown in
FIG. 3 to press the electrode surface 18 together with the inward end portion 29.
According to this, even if the contact terminal which does not have the spring property is used,
the electrical conduction can always be ensured.
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[0020]
The shape of the main body portion 13 is a bottomed container type similar to a cylindrical
shape, but is not limited thereto. For example, a rectangular parallelepiped shape having an
opening 12 along the shape of the microphone 11 may be used. Good. Furthermore, although the
undercut portion 24 as the microphone dropout prevention portion is provided at an interval
position in the circumferential direction 180 degrees on the upper end side of the peripheral wall
20 in the illustrated configuration example, it is not limited thereto. It may be provided at an
interval of 90 degrees or 120 degrees, or may be provided in the central region in the vertical
direction of the circumferential wall 20 or the like. In short, any structure that can be reliably
engaged so as to prevent the microphone 11 received in the main body 13 from falling off is
sufficient.
[0021]
As described above, according to the present invention, since the undercut portion is provided in
the main body portion capable of receiving the microphone, the microphone can be simply
inserted into the opening portion. It is possible to energize the microphone and the connection
terminal, and to obtain an excellent effect that the microphone is reliably held in the main body.
[0022]
Also, since the inward end of the connection terminal is separated from the inner surface of the
main body portion in the initial posture, the microphone electrode surface and the connection
terminal can be reliably energized simply by receiving the microphone in the main body portion.
It is possible to improve productivity by eliminating the conventional connection process.
Furthermore, it becomes possible to act together with the undercut portion to hold the
microphone, which also stabilizes the holding posture of the microphone.
[0023]
Further, when the sound leakage prevention portion is integrally formed in the main body
portion, it is possible to effectively eliminate the possibility that the sound input to the
microphone leaks through the main body portion.
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[0024]
Furthermore, since the sound backup unit is provided with the elastic backup unit, the
microphone inserted in the main unit can be always disposed at a fixed position, and a spring at
the inward end of the connection terminal is provided. It also becomes possible to compensate
for the decrease in power.
[0025]
Brief description of the drawings
[0026]
1 is a schematic plan view of the microphone holder according to the present embodiment.
[0027]
FIG. 2 is a cross-sectional view taken along the line A-A of FIG. 1 with the microphone holder
holding the microphone.
[0028]
3 is a cross-sectional view taken along the line B-B in FIG.
[0029]
4 is a schematic cross-sectional view showing a conventional microphone holder.
[0030]
Explanation of sign
[0031]
DESCRIPTION OF SYMBOLS 10 ... Microphone holder 11, 11 ... Microphone, 12 ... Opening part,
13 ... Body part, 15 ... Connection terminal, 21 ... Bottom wall (sound omission prevention part)
24 ...・ Undercut part (microphone falling out prevention part), 26 ... Elastic backup part, 29 ...
inner end
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