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JP2002118892

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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 JP2002118892
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
connector for a vibration component which accommodates a vibration component such as a
microphone, a speaker and a buzzer and which is electrically connected to a printed wiring
board.
[0002]
2. Description of the Related Art In communication devices such as portable telephones, vibrating
parts such as microphones and speakers are used for transmission of incoming calls and calls.
These vibration parts, which are attached to the housing of the device, are electrically connected
to the conductive pattern of the printed circuit board on the communication device side in order
to supply power to the vibration parts and output a sound collection signal. There is a need.
[0003]
However, since the vibrating part itself vibrates, the terminal can not be directly electrically
connected to the conductive pattern by soldering or the like, and both ends are connected using
the lead wire soldered to the terminal and the conductive pattern. The connection work using
this lead wire requires a solder connection work, which is not only extremely troublesome, but
also has a risk of incorrect connection, and additionally, it has been a cause of environmental
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destruction due to the use of solder.
[0004]
Therefore, a vibratory component connector 100 has been proposed in which the vibratory
component and the conductive clip spring in elastic contact with the printed wiring board are
used to connect them without using solder.
[0005]
FIGS. 7 to 9 show this conventional connector for vibration parts 100. The vibration parts
connector 100 will be described in more detail with reference to these figures. The connector for
vibration parts 100 is made of hard synthetic resin. It comprises an insulating case 101, a
conductive clip spring piece 102, and an elastic cover 103 formed of synthetic rubber.
[0006]
The insulating case 101 is composed of a disk-shaped support plate 101 a and a cylindrical
frame 101 b provided integrally from the periphery thereof, and the housing surrounded by the
cylindrical frame 101 b is a housing for accommodating the columnar vibration component 110.
It is a room 106.
[0007]
The clip spring piece 102 is formed by folding a strip-shaped metal piece into a substantially U
shape, and the folded back side 102a is a support that forms the top surface of the storage
chamber 106, leaving the terminal contact portion 104 at the tip. It is integrally molded and
fixed in the plate 101b.
[0008]
As shown in FIG. 7, in a state where one side 102a of the clip spring piece 102 is fixed, the
terminal contact portion 104 faces the inside of the storage chamber 106 at the inner top
surface of the storage chamber 106, and the U-shaped other side 102b. Is supported at one side
102a in a cantilever manner, and is inserted through the notch 101c of the support plate 101a,
and the substrate contact portion 105 formed at the free end thereof protrudes above the
support plate 101a.
[0009]
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As shown in FIG. 8, the elastic cover 103 is formed in a cylindrical shape with a bottom so as to
cover the whole of the accommodation chamber 106 of the insulating case 101 in which the
vibration component 110 is accommodated. In the state of covering the ring, the ring-shaped
flange portion 103a at the inner edge of the opening is attached so as to cover the periphery of
the support plate 101a.
The accommodated vibrating component 110 is urged toward the support plate 101a by the
elasticity of the expanded elastic cover 103, and resiliently contacts the terminal contact portion
104 where the terminal (not shown) of the vibrating component 110 faces the support plate
101a. Do.
[0010]
Thus, as shown in FIG. 9, the vibration component connector 100 accommodating the vibration
component 110 is fixed by being held between the housing 131 of the communication device
and the printed wiring board 120, and a clip spring When the other side 102b of the piece 102 is
bent, the substrate contact portion 105 at the free end elastically contacts the conductive pattern
(not shown) of the printed wiring board 120, and the vibrating component 110 is printed via the
clip spring piece 102. The wiring board 120 is electrically connected.
[0011]
According to the conventional connector 100 for vibration parts, there is no solder connection
step, and the vibration parts 110 can be electrically connected to the printed wiring board 120,
and the whole is covered with the elastic rubber 103. Also, since the clip spring piece 102 and
the conductive pattern of the printed wiring board 120 make elastic contact, the electrical
connection between the vibrating component 110 and the printed wiring board 120 is unlikely
to be interrupted even if the communication device receives an impact due to dropping or the
like. It becomes a thing.
[0012]
However, since the terminal of the vibrating part 110 is in contact with the terminal contact
portion 104 fixed to the rigid support plate 101a with the elasticity of the elastic rubber 103, the
vibration of the vibrating part 110 causes the contact between the two to blink. There was a fear
that he would refuse.
[0013]
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Further, the substrate contact portion 105 is brought into elastic contact with the printed wiring
board 120 by causing the other side 102b of the clip spring piece 102 to act as an elastic spring
piece, but in order to cause the spring action, the other side 102b is fixed. It is necessary to
secure a length (spring span) and a constant deflection space for elastic deformation of the
insulating case 101.
For example, in the vibration component connector 100, the support plate 101a is provided with
a relief groove 107 for preventing interference with the bent clip spring piece 102.
[0014]
For this reason, the support plate 101a and the ring-shaped flange portion 103a of the elastic
cover 103 must have a predetermined thickness, and the height of the connector 100 for
vibrating parts is increased, which is required for the communication device containing the
vibrating parts 110. Miniaturization was to be restricted.
[0015]
Furthermore, since the insulating case 101 and the elastic cover 103 are separately
manufactured and integrated, not only extra labor is required, but also a gap is generated
between the integrated two, so that the sealing performance is impaired, and the vibrating
component has directivity. In the case of a microphone or the like, sound leakage and ambient
noise are included to affect the sound collection characteristics.
[0016]
The present invention has been made in view of the above problems, and an object of the present
invention is to provide a connector for a vibration component, which does not have a solder
connection step and reliably connects with a printed wiring board even if the vibration
component itself vibrates.
[0017]
Another object of the present invention is to provide a connector for a vibration component
which can be reduced in height as a whole.
[0018]
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Another object of the present invention is to provide a connector for vibration parts, which
reduces the number of parts and improves the sealing property of the vibration parts to improve
the operation characteristics of the contained vibration parts.
[0019]
SUMMARY OF THE INVENTION In view of the above-mentioned object, a connector for a
vibration part according to claim 1 is disposed between a housing and a printed wiring board,
and a storage chamber for surrounding and containing the vibration part is formed. An elastic
housing, and a conductive terminal piece fixed by integral molding to a peripheral wall around
the housing of the elastic housing and having a first contact facing the housing and a second
contact facing the printed wiring board; By holding the elastic housing accommodating the
vibration component between the housing and the printed wiring board and attaching it, the first
contact portion of the conductive terminal strip is brought into elastic contact with the terminal
of the vibration component accommodated in the accommodation chamber, The second contact
portion is brought into elastic contact with the conductive pattern of the printed wiring board to
electrically connect the vibrating component to the printed wiring board.
[0020]
When the elastic housing is held between the housing and the printed wiring board, the entire
elastic housing is compressed and positioned and fixed on the printed wiring board.
At the same time, the peripheral wall portion into which the conductive terminal strip is
integrally formed is also compressed, and the first contact portion and the second contact
portion elastically contact the terminal of the vibrating component and the conductive pattern of
the printed wiring board.
[0021]
Since the first contact portion and the second contact portion are brought into elastic contact by
the elasticity of the peripheral wall portion itself fixing the conductive terminal piece, there is no
need to provide a deflection space of a spring, and the entire height can be reduced. .
[0022]
Since the vibrating part is surrounded by the accommodation chamber of the elastic housing, the
expansion and contraction of the accommodation room vibrates freely, and even if the vibrating
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part vibrates, the first contact portion and the terminal of the vibrating part are elastic. Because it
contacts, there is no momentary interruption.
[0023]
In addition, since the conductive terminal piece is integrally formed with the elastic housing that
accommodates the vibrating component, the number of components is reduced, and the sealing
performance of the vibrating component is enhanced.
[0024]
The connector for a vibration part according to claim 2 is characterized in that the strip-like
metal piece is folded in a substantially U shape along the longitudinal direction to form a
conductive terminal piece, and the first contact portion and the first formed on both sides of the
substantially U shape (2) The first contact portion and the second contact portion are exposed on
both surfaces of the peripheral wall portion by insert molding in the peripheral wall portion
except for the contact portion.
[0025]
Since the conductive terminal piece folded back into a substantially U shape is insert-molded in
the peripheral wall portion, the first contact portion and the second contact portion are
accurately positioned across the peripheral wall portion and exposed on both surfaces thereof.
The first contact portion and the second contact portion elastically contact the terminal of the
vibrating component and the conductive pattern of the printed wiring board, respectively, by
expansion and contraction of the peripheral wall portion.
[0026]
The connector for a vibrating part according to claim 3 is characterized in that at least one of the
first contact portion and the second contact portion is formed to be curved outward of the
peripheral wall portion on one side of the substantially U shape.
[0027]
Since at least one of the first contact portion and the second contact portion is curved outward of
the peripheral wall portion, it reliably contacts the terminal of the vibrating component or the
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conductive pattern of the printed wiring board without surface contact.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION A vibration component connector 1 according
to an embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 is a longitudinal sectional view showing the vibratory component connector 1 and the
vibratory component 110, FIG. 2 is a longitudinal sectional view showing a state in which the
vibratory component connector 1 is mounted, and FIGS. A plan view, a side view and a bottom
view of the connector 1 and FIG. 6 are perspective views of the terminal piece 3.
[0029]
The vibrating component 110 exemplified in the present embodiment is a microphone having
sound collecting directivity at the lower side in FIG. 1 and is surrounded by a cylindrical
insulating cover whose plane side opens in a circle, and becomes one of input / output terminals.
A terminal is circular at the center of this circular opening, and the other terminal is ring-shaped,
insulated from said terminal (none shown).
[0030]
The vibrating component connector 1 includes an elastic housing 2 for housing the vibrating
component 110 and a pair of terminal pieces 3 and 3 integrally attached to the elastic housing 2.
[0031]
The elastic housing 2 is formed of an insulating elastomer such as silicone rubber, and the
cylindrical portion 6 is integrally provided from the periphery of the disc-like top plate 5.
The top plate portion 5 and the cylindrical portion 6 form a hollow cylindrical storage chamber 4
that encloses and accommodates the vibrating component 110.
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The lower end of the cylindrical portion 6 is a flange portion 6 a inclined toward the center
thereof, and the inner diameter thereof is slightly smaller than the outer diameter of the
columnar vibrating component 110.
Therefore, the vibrating component 110 is accommodated in the hollow accommodation
chamber 4 while expanding the diameter of the collar 6a, and after being accommodated, the
elastic component 110 does not come out due to the elasticity of the cylindrical portion 6.
[0032]
The terminal pieces 3 and 3 are formed by punching a conductive metal plate such as an
adjacent bronze in a band shape and folding it into a substantially U shape along its longitudinal
direction as shown in FIG. The inner contact portion 3b and the outer contact portion 3c are
connected to both ends of the connection portion 3a.
[0033]
The internal contact portion 3b acts as a first contact portion resiliently contacting the terminal
of the vibrating component 110 as described later, and the external contact portion 3c acts as a
second contact portion resiliently contacting the conductive pattern of the printed wiring board
120 It is a thing.
In order to make the electrical connection by these elastic contacts more reliable, the inner
contact portion 3b and the outer contact portion 3c are respectively curved outward in an arc,
and the contact rib 9 is on the back side along the center of the arc. It is punched out of the
These contact surfaces may be further subjected to surface treatment such as gold plating in
order to maintain contact reliability.
[0034]
Also, in order to position the terminal piece 3 during insert molding to be described later, a
circular relief hole 3d is bored in the connecting portion 3a on the external contact portion 3c
side, and on the tip end side of the external contact portion 3c, positioning Plates 3e are provided
in series (see FIG. 6).
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[0035]
The pair of terminal pieces 3 and 3 are formed in the same shape, and as shown in FIG. 1 and
FIG. 3, respectively, the top plate portion 5 which becomes the peripheral wall portion around
the accommodation chamber 4 except the internal contact portion 3b and the external contact
portion 3c. , Insert molding.
[0036]
That is, at the time of molding of the elastic housing 2, the pair of terminal pieces 3, 3 are
separated and positioned and supported at the site of molding the top plate 5 in the mold, and
the insulating elastomer to be melted is made to flow and insert molded .
The positioning of the terminal piece 3 at the time of molding is performed by sandwiching the
connecting portion 3a on the side of the internal contact portion 3b between the core pin and the
cavity of the mold inserted in the clearance hole 3d and positioning between other core pins and
the cavity The plate portion 3e is held and fixed in the mold.
[0037]
Therefore, in the top plate portion 5 after insert molding, the holes 7, 7 · · · by these dies are
formed.
The terminal piece 3 insert-molded in the top plate portion 5 has a printed wiring board and an
inner top surface on which both the outer contact portion 3b and the outer contact portion 3c
curved outward face the both sides of the top plate portion 5, that is, the storage chamber 4. It is
exposed in the plane opposite to 120.
[0038]
At this time, as shown in FIGS. 3 and 5, the internal contact portion 3b and the external contact
portion 3c of one of the terminal pieces 3 are exposed at the centers of the inner top surface and
the plane, and the internal contact of the other terminal piece 3 is The portion 3 b and the
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external contact portion 3 c are exposed at a position deviated from the center.
Further, an insulating elastomer is filled between the inner contact portion 3 b and the outer
contact portion 3 c.
[0039]
When the cylindrical part 6 of the vibration component connector 1 configured as described
above is opened and the vibrating part 110 is inserted into the storage chamber 4 with the
exposed surface of the terminal facing upward, as described above, the flange 6a is of the
vibrating part 110 The vibration component 110 is positioned and accommodated in the
accommodation chamber 4 by covering the bottom peripheral edge and holding it between the
top plate portions 5.
[0040]
The pair of terminals of the vibrating component 110 housed in the housing chamber 4 is
arranged concentrically, and therefore the internal contacts 3b and 3b of the pair of terminal
pieces 3 and 3 are accommodated regardless of which rotational position they are housed in
opposite.
[0041]
As shown in FIG. 2, the vibrating component connector 1 accommodating the vibrating
component 110 is disposed on the housing 131 of the electronic device in which the vibrating
component 110 is used, and is clamped and fixed to the printed wiring board 120.
[0042]
Similar to the terminal of the vibrating part 10, the other conductive pattern is concentrically
formed on the periphery of one of the circular conductive patterns on the surface of the printed
wiring board 120 facing the vibrating part 110 (shown in FIG. ).
[0043]
The vibrating component 110 is held between the housing 131 and the printed wiring board 120
so that the external contact portion 3c exposed at the center of the outer surface of the top plate
portion 5 faces the circular conductive pattern, thereby a pair of terminals The external contacts
3 c and 3 c of the pieces 3 and 3 respectively face the pair of conductive patterns of the printed
wiring board 120.
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[0044]
The relative positioning with the printed wiring board 120 may be performed by forming
asperities between the elastic housing 2 and the printed wiring board 120 and engaging each
other.
[0045]
By sandwiching the vibration component connector 1 between the housing 131 and the printed
wiring board 120, the whole of the elastic housing 2 and the storage chamber 4 is compressed.
As a result, the terminal of the vibrating component 110 is resilient to the rib 9 of the opposing
internal contact portion 3b, and the ribs 9 of the external contact portions 3c and 3c are resilient
to the conductive pattern of the printed wiring board 120 opposing each other at a
predetermined contact pressure. Contact is made, and the pair of terminals of the vibrating
component 110 is electrically connected to the pair of conductive patterns of the corresponding
printed wiring board 120 without solder connection via the pair of terminal pieces 3.
[0046]
In addition, since the vibration component 110 is completely surrounded by the elastic housing 2
except the lower part of the microphone having the sound collecting directivity, there is no sound
leakage or noise from the outside, and the operating characteristic of the microphone Improve.
[0047]
In addition, since the vibration component 110 is entirely covered with the elastic housing even
if it is positioned and fixed, the vibration is not restrained and vibrates freely.
[0048]
In addition, since the terminal housing 3 is filled with the elastic housing 2 of insulating
elastomer while being substantially U-shaped, the vibration electric component 110 is provided
with a predetermined contact pressure without providing a predetermined spring span on the
terminal housing 3 itself. And the printed wiring board 120 can be elastically contacted.
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In addition to this, the terminal also vibrates due to the vibration of the vibrating part 110, but
the internal contact portion 3b of the terminal piece 3 is biased by the insulating elastomer on
the back side and follows the vibration of the terminal, so the elastic contact is not interrupted. .
[0049]
The present invention is not limited to the above-described embodiment. For example, the side of
the elastic housing 2 may be opened, and the vibrating component 110 may be accommodated in
the accommodation chamber 4 from the side.
[0050]
Furthermore, the terminal piece 3 does not necessarily have to be folded in a substantially Ushape, and may be integrally molded with the cylindrical portion 6 which is another peripheral
wall portion.
In this case, the cylindrical portion 6 is sandwiched between the vibrating component 110 and
the printed wiring board 120.
[0051]
Further, although the elastic housing 2 is pressed by the housing 131, the vibrating component
110 accommodated in the storage chamber 4 is directly pressed by the casing 131, and the
vibrating component connector 1 is held between the printed wiring board 120 You may
[0052]
As described above, according to the present invention, there is no solder connection step, and
the terminal of the vibrating component is moved to the conductive pattern of the printed wiring
board while vibrating the vibrating component freely with only two types of components. It can
be electrically connected.
[0053]
In addition, since the terminal pieces are attached by integral molding at the time of molding of
the elastic housing, they can be attached without the trouble of assembly.
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[0054]
Furthermore, since the vibrating part is surrounded by the integral elastic housing, noise can not
enter from the outside or there is no sound leakage, and the operating characteristics of the
accommodated vibrating part can be improved.
[0055]
Furthermore, since the first contact portion is urged by the elastic housing to follow the vibration
of the vibrating component, even if the vibrating component itself vibrates, a momentary
disconnection between the terminal and the first contact portion does not occur.
[0056]
Further, according to the invention of claim 2, in addition to this, since the peripheral wall of the
elastic housing is interposed between the first contact portion and the second contact portion of
the attached terminal strip, it is biased by the peripheral wall. It is not necessary to provide a
predetermined spring span on the conductive terminal piece or to secure its bending space, and
the height of the connector for vibrating parts can be reduced.
[0057]
Further, according to the invention of claim 3, in addition to this, the first contact portion or the
second contact portion is bent outward, so that the contact reliability is improved without surface
contact with the other.
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