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JP2010282857

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DESCRIPTION JP2010282857
PROBLEM TO BE SOLVED: To provide a small connector substrate improved so that the
connector socket is not damaged when pulling out the connector socket of the small connector
substrate from the connector base of the main substrate, and a thin liquid crystal television in
which a speaker and the main substrate are connected using this. . A connector socket 3 into
which a contact pin 6a of a connector base 6 of a main substrate 5 is inserted from below, and a
wire holder 2 for holding a soldered end of a lead wire 1 such as a speaker. The small connector
substrate 100 is arranged and mounted on a horizontally long small printed circuit board 4 and
formed with a horizontally long long hole 8 into which the tip portion 7 of the pickup tool can be
inserted immediately above the connector socket 3. The tip end portion 7 of the pickup tool can
be inserted into the long hole 8 and pulled upward so that the connector socket 3 is not stressed,
so that damage to the connector socket 3 can be prevented. [Selected figure] Figure 1
Small connector board and thin liquid crystal television using the same
[0001]
The present invention relates to a small connector substrate for connecting a speaker or the like
of a thin liquid crystal television to a main substrate, and a thin liquid crystal television using the
same, more specifically, pulling out a mounted connector socket from a connector base of the
main substrate The present invention relates to a small connector substrate improved to prevent
breakage of a connector socket and a thin liquid crystal television in which a speaker and a main
substrate are connected using the small connector substrate.
[0002]
Conventionally, in the field of liquid crystal televisions and the like, a small connector board 101
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as shown in FIG. 3 is used to connect a speaker attached to the lower part of the front cabinet
and a main board attached to the back of the rear frame of the liquid crystal module. It is known
to use it.
[0003]
The small connector board 101 has a wire holder 2 for holding the soldered end of the lead wire
1 of the speaker and a connector socket 3 in which the contact pins of the connector base of the
main board are inserted from below. And mounted on the small printed circuit board 4A.
However, since such a small connector substrate 101 has a considerable height, as the distance
between the main substrate and the rear cabinet becomes smaller due to the thinning of the
liquid crystal television, the problem of exceeding the height restriction often occurs. It has
[0004]
Therefore, as shown in FIG. 4, the small connector board 102 in which the connector socket 3
and the wire holder 2 are arranged side by side and mounted on the horizontally long small
printed board 4B is developed.
The height of the small connector substrate 102 is reduced by the amount by which the
connector socket 3 and the wire holder 2 are arranged side by side, so that the height restriction
is cleared even in the case of a thin liquid crystal television, as shown by the phantom line. By
connecting the contact pins 6a of the connector base 6 of 5 to the connector socket 3 from
below, the speaker and the main board 5 can be connected.
[0005]
On the other hand, as a prior art related to the connection between a speaker and a substrate, it
is connected to the connector of the lead wire end of the speaker connected to the connector of
the substrate (Patent Document 1), the input terminal of the speaker, and the output terminal of
the printed substrate A connector substrate soldered to a lead wire is used, and the connector
substrate is substantially rectangular in plan view, and a cutting portion is formed at both ends in
the longitudinal direction of the connector substrate (Patent Document 2), etc. ing.
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[0006]
JP 10-178698 JP 2008-244541 JP
[0007]
However, when the connector socket 3 is removed from the connector base 6 of the main
substrate 5 in the small connector substrate 102 shown in FIG. 4, the portion of the small printed
substrate 4B to which the wire holder 2 is attached is fingered for ease of removal operation.
Although it is difficult to pull out due to the resistance of the stopper socket (not shown)
provided on the connector socket 3 and the connector base 6 when trying to pick it out, when
trying to pull it out forcibly, the small connector board 102 as shown by arrow X. The force
acting in the direction of rotating acts on the connector socket 3 and a large stress is applied to
the connector socket 3, and the contact piece 3a inside the connector socket 3 may come off, and
the connector socket 3 may be damaged.
Thus, if the connector socket 3 is broken, it is necessary to replace the connector socket 3 with a
new one, resulting in an increase in the cost of replacement parts and replacement work, so it is
desirable to improve the small connector board 102.
[0008]
The problems as described above can not be solved even by applying the speaker-substrate
connection technology disclosed in Patent Documents 1 and 2.
[0009]
The present invention has been made under the above circumstances, and the problem to be
solved is the small connector substrate improved so that the connector socket is not damaged
when the connector socket of the small connector substrate is pulled out from the connector
base of the main substrate. Another object of the present invention is to provide a thin liquid
crystal television in which a speaker and a main substrate are connected using this.
[0010]
In order to solve the above problems, the small connector substrate of the present invention is a
small connector substrate for connecting a speaker or the like to a main substrate, and a
connector socket into which contact pins of a connector base of the main substrate are inserted
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from below; A wire holder for holding the soldered end of a lead wire such as a speaker is
disposed side by side and mounted on a horizontally long small printed circuit board, and a
pickup tool is mounted immediately above the connector socket of this small printed circuit
board It is characterized in that it is formed with a laterally long elongated hole which can be
inserted.
[0011]
Then, in the thin liquid crystal television according to the present invention, the contact pins of
the connector base of the main substrate attached to the back of the liquid crystal module are
inserted into the connector socket of the small connector substrate described above, and the
speaker attached to the front cabinet is the main substrate It is characterized in that it is
connected to
[0012]
As in the small connector substrate of the present invention, if a horizontally long elongated hole
into which the pickup tool can be inserted is formed immediately above the connector socket of
the small printed circuit board, the height of the small connector substrate is equal to the short
diameter of the elongated hole. Although the height is not as high as that of the conventional
connector substrate 101 in which the wire holders and connector sockets are vertically disposed
and mounted as shown in FIG. It can be connected to the connector base.
[0013]
When the small connector board is removed from the main board, the tip of a pick-up tool such
as a flathead screwdriver can be inserted into the above long hole and can be easily pulled up in
the upward direction, so that the removal workability is good. In addition, since a force in the
direction to rotate the small connector substrate acts in the conventional manner and no large
stress is applied to the connector socket, breakage of the connector socket can be sufficiently
prevented.
[0014]
Therefore, the thin liquid crystal television of the present invention in which the speaker of the
front cabinet is connected to the main substrate of the back of the liquid crystal module using the
small connector substrate of the present invention can suppress the extra cost increase
associated with the replacement of the damaged connector socket. .
[0015]
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It is a front view of the small connector board concerning one embodiment of the present
invention.
FIG. 1 is a schematic explanatory view of a thin liquid crystal television according to an
embodiment of the present invention.
It is a front view of the conventional small connector board which arranges and mounts a wire
holder and a connector socket up and down.
It is a front view of the small connector board which arranged and mounted the connector socket
and the wire holder side by side.
[0016]
The small connector substrate 100 shown in FIG. 1 is a small connector substrate for connecting
a speaker of a thin liquid crystal television to a main substrate, and includes a connector socket 3
which is plug-connected to the connector base 6 of the main substrate 5 and a lead of the
speaker. A wire holder 2 for holding the soldered end of the wire 1 is mounted on a small printed
circuit board 4 arranged side by side and having a small horizontal height.
[0017]
The above connector socket 3 has a plurality of pin insertion holes 3b provided with the contact
pieces 3a inside, and when this connector socket 3 is inserted into the connector base 6 of the
main substrate 5 shown by a virtual line, the connector base A plurality of contact pins 6a
erected inside of 6 are inserted into the pin insertion holes 3b to be in contact with the contact
pieces 3a to be electrically connected.
[0018]
Further, although not shown, a ridge and a concave groove for a vertical insertion guide are
formed on the outer side surface of the connector socket 3 and the inner side surface of the
connector base 6. When the plug-in is inserted and connected, the projection for the plug-in
guide slides in the groove for the plug-in guide so that the plug-in connection operation can be
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smoothly performed.
And, on the outer surface of the connector socket 3 and on the inner surface of the connector
base 6, there are also formed an engagement projection for engagement and an engagement
recess for removal, and when the connector socket 3 is inserted into the connector base 6 The
mating projections are engaged with the engaged recesses to prevent the connector socket 3
from coming off.
[0019]
On the other hand, the wire holder 2 is provided with a substantially eyeglass-like holding hole
2a for holding the end of the inserted lead wire 1, and at both ends of the wire holder 2, a plug-in
pin 2b having a tip divided into two. , 2b are formed, and the insertion pins 2b, 2b are inserted
into the pin insertion holes 1a, 1a of the small-sized printed circuit board 4 and the locking claws
(not shown) at the tip of the pins are locked to the hole edges. It is attached and fixed so as not
to.
[0020]
A large feature of this small connector substrate 100 is that a horizontally long elongated hole 8
into which the tip portion 7 of a pickup tool such as a minus driver can be inserted is formed
immediately above the connector socket 3 of the small printed circuit board 4.
[0021]
The minor diameter (upper and lower dimensions) of the elongated hole 8 is preferably the
smallest dimension that can be inserted into the tip of the pickup tool in order to minimize
increase in the height dimension of the small printed circuit board 4. In this case, it is
appropriate to set about 2 to 4 mm, especially about 3 mm.
[0022]
Although the major diameter (right and left dimensions) of the elongated hole 8 is not
particularly limited, if the major diameter of the elongated hole 8 is too large, the tip 7 of the
pickup tool inserted into the elongated hole 8 moves laterally to pull out the connector socket 3
It is preferable that the major diameter of the elongated hole 8 be slightly larger than the lateral
dimension of the tip 7 of the pick-up tool, because it becomes unstable. If the pick-up tool is a flat
screwdriver, about 8 to 12 mm, especially It is appropriate to set around 10 mm.
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[0023]
In this small connector board 100, since the long hole 8 as described above is formed at a
position immediately above the connector socket 3 of the small printed board 4, when the small
connector board 100 is removed from the main board 5, the long hole The tip 8 of a pick-up tool
such as a flathead screwdriver can be inserted into 8 and easily pulled upward as shown by the
outlined arrow.
Therefore, a force in the direction to rotate the small connector substrate 100 does not act to
apply a large stress to the connector socket 3, so that it is possible to sufficiently prevent the
damage of the connector socket 3. As compared with the case of 102, the detachment
workability is also greatly improved.
[0024]
Although the height of the small connector substrate 100 is increased by the short diameter of
the elongated hole 8 compared to the conventional small connector substrate 102 described
above, the above-described wire holder and connector socket are vertically arranged. Since the
height is not as high as that of the conventional connector substrate 101 mounted, it is possible
to clear the height restriction and connect to the connector base of the main substrate even in
the case of a thin liquid crystal television.
[0025]
The thin liquid crystal television shown in FIG. 2 is one in which the speaker and the main
substrate are connected using the above-described small connector substrate 100, and the liquid
crystal module 11 is attached to the front opening of the front cabinet 10a. The main board 5 is
attached to the back of the module 11.
A pair of left and right speakers 9 (only one of the speakers is shown in FIG. 2) is attached to the
lower part of the front cabinet 10 b, and the tip of the lead wire 1 of the speaker 9 is attached to
the small connector board 100. It is soldered and held by the wire holder 2.
The connector socket 3 of the small connector board 100 is inserted and connected to the
connector base 6 of the main board 5, whereby the speaker 9 and the main board 5 are
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electrically connected.
Since the small connector board 100 is low in height, the height restriction is cleared and the
speaker 9 and the main board 5 are connected as described above even if the distance between
the main board 5 and the rear cabinet 10b of the thin liquid crystal television is narrow. be able
to.
[0026]
Like this thin liquid crystal television, the speaker 9 of the front cabinet 10a is connected to the
main substrate 5 on the back surface of the liquid crystal module 11 using the small connector
substrate 100 in which the long hole 8 is formed immediately above the connector socket 3. As
described above, since the tip of the pickup tool can be easily inserted without damaging the
connector socket 3 by inserting the tip of the pickup tool into the long hole 8, there is no need to
replace the conventionally damaged connector socket. The extra cost increase associated with
the replacement of the connector socket can be suppressed.
[0027]
Although the present invention has been described above by taking the case of connecting the
speaker of the thin liquid crystal television to the main substrate as an example, the present
invention is not limited to this. For example, the remote control light receiving unit and the main
substrate are connected Of course, the present invention can also be applied to the case of
connecting various switches and a main board, and the case of connecting a power supply
display LED and a main board.
[0028]
1 lead wire 2 wire holder 3 connector socket 4 small printed circuit board 5 main board 6
connector base 6a contact pin 7 tip of pickup tool 8 long hole 9 speaker 10a front cabinet 11
liquid crystal module 100 small connector board
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