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JP2012222770

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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 JP2012222770
An object of the present invention is to develop a thin speaker module which can be mounted on
a thin video apparatus such as a plasma television or a liquid crystal television in a speaker
module for video equipment. SOLUTION: A rear panel, a speaker arranged and installed in a row
of two or more on the rear panel, and a wiring means for connecting these speakers are
provided, and the two or more speakers are linearly formed. The rear panel is provided with
wiring means, and the speaker terminals are provided in the form of projections in the direction
opposite to the sound radiation direction of the speaker, and the rear panel is provided with
holes to allow the speaker terminals to be By configuring the speaker module by inserting and
fixing the connector, it is possible to realize size reduction, thickness reduction and space saving.
[Selected figure] Figure 1
Speaker module, electronic device using the same, mobile device
[0001]
The present invention relates to a speaker module used for various video devices and audio
devices.
[0002]
In recent years, in the video industry, in television receivers (hereinafter referred to as television),
as represented by plasma televisions and liquid crystal televisions, thinning of these video
devices and space saving are required.
[0003]
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1
In the past, when CRTs with large depth dimensions were mainstream, even if a CRT is placed on
the front of the TV, a large space can be secured on the back of the CRT, and this large space can
be used as a speaker It was possible to mount the system.
[0004]
That is, in the case of a speaker system mounted on a CRT, if the area of the front of the
television can be reduced, the depth dimension of the back of the CRT, which is formed to be
narrowed as it goes to the rear, is used. It was possible to mount a large volume speaker system.
[0005]
Therefore, as long as the shape of the front portion is a slim type speaker system, there is no
problem in mounting even if the depth dimension is large.
[0006]
However, in the case of a plasma television or a liquid crystal television, not only the shape of the
display module itself is thin, but there is no need to provide an extra space on the back surface,
so the volume in the depth direction can be increased when mounting the speaker system. It has
become very difficult to utilize
[0007]
These requirements ensure that the area of the plasma panel unit and the liquid crystal panel
unit that display the image is as large as possible to enhance the visibility as a video device such
as a television, and reduce the area and volume of other parts as much as possible. Another
reason is the improvement of the product value by increasing the size, thickness and space
saving.
[0008]
Accordingly, the market demand for downsizing and thinning of the speaker systems mounted on
these video devices is inevitable at present.
[0009]
On the other hand, the performance requirements for the speaker system installed in these video
equipments have been further enhanced so that these audio signals can be reproduced without
waste as the performance of the audio signals is enhanced such as digitization of the input
source. In addition to performance, high input resistance, high quality, and high reliability have
04-05-2019
2
been required.
[0010]
Furthermore, with the intensification of the global price competition of imaging devices such as
plasma TVs and liquid crystal televisions, severe market requirements have been made for cost
reduction.
[0011]
From the above background, it is necessary to satisfy the market demand for downsizing and
thinning, and the high performance, high input resistance, high quality and high reliability of the
speaker system, and also for satisfying the cost demand. There is an urgent need to develop a
speaker system that can
[0012]
Hereinafter, a video apparatus which is a conventional electronic apparatus and a speaker system
mounted on the video apparatus will be described with reference to the drawings.
[0013]
FIG. 7 is an external view of a video apparatus which is a conventional electronic apparatus, and
FIG. 8 is a cross-sectional view of the speaker system.
[0014]
As shown in FIG. 7, in a conventional speaker system centered on video equipment such as a
plasma television and a liquid crystal television, the speaker system 37 is vertically disposed with
the front direction facing the both side surfaces of the plasma panel and the liquid crystal panel.
The configuration was heavily used.
[0015]
In this case, in accordance with the shape of the vertically long speaker system, a cone-shaped
slim-shaped speaker 35 which is a vertically long speaker is often used inside the speaker system
37.
[0016]
FIG. 8 is a longitudinal sectional view of a conventional speaker system, and a cone-shaped slim-
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3
shaped speaker 35 is provided from the inside to the front panel 31 of the enclosure 34
composed of the front panel 31, the back panel 32, and the side panel. A speaker cord is
connected to the terminal, and the speaker cord is internally routed by an air wiring to construct
a speaker system 37.
[0017]
The shape of the speaker system 37 is formed in a vertically long shape so that the video
equipment such as plasma television and liquid crystal television can be miniaturized even if the
speaker system 37 is disposed on both sides of the plasma panel and liquid crystal panel with the
front direction facing. In order to be adapted to the vertically elongated shape of the speaker
system 37, a cone-shaped slim-shaped speaker 35, which is a vertically elongated speaker, is
used as the speaker.
[0018]
Here, the aspect ratio, which is the aspect ratio of the cone-shaped slim-shaped speaker 35, is
about 4 or less, and about 5 even if the aspect ratio is high.
[0019]
The configuration of the cone-shaped slim-shaped speaker 35 is such that an inner-magnet-type
magnetic circuit 44 configured by sandwiching the magnetized magnet 41 by the upper plate 42
and the yoke 43 is coupled to the lower portion of the vertically-long slim-shaped frame 46 A
cone-shaped slim-shaped diaphragm 47 is bonded to the peripheral portion of the slim-shaped
frame 46, and the voice coil 48 for driving the cone-shaped slim-shaped diaphragm 47 is coupled
to the voice coil 48. The damper 49 holds the center of the damper 49 so as to be fitted into the
magnetic gap 45 of the magnetic circuit 44, and the dust cap 50 is bonded to the front surface of
the cone-shaped slim-shaped diaphragm 47.
[0020]
In addition, as a configuration of another vertically-long speaker system, there is also a tone zone
type speaker system in which a speaker system is configured using a large number of circular
speakers without using a slim speaker.
[0021]
Furthermore, for the purpose of achieving thinning and simultaneously achieving high input
resistance, there are also loudspeaker systems that use a large number of loudspeakers that use a
thinned diaphragm instead of a cone-shaped diaphragm. Was.
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4
[0022]
In addition, as prior art document information regarding the invention of this application, for
example, Patent Document 1, Patent Document 2 and Patent Document 3 are known.
[0023]
JP-A-8-223678 JP-A-8-251686 JP-A-2005-79809
[0024]
However, the conventional speaker system is configured to realize size reduction, thickness
reduction, and space saving, which are market requirements to a certain extent, but further size
reduction and thickness reduction to improve product value. The conventional speaker system
has already reached its limit when space saving is required.
[0025]
The cause of this will be described below.
[0026]
The speaker system is formed in a vertically long shape for space saving, and the shape of the
speaker is a vertically long cone-shaped slim shape according to this shape, but this speaker is a
slim-shaped cone-shaped diaphragm The center is driven by a voice coil.
[0027]
However, in recent years when high-inch television is becoming mainstream as the size of the
display module, the viewer's viewing position is often viewed far from the television, and even in
this case, the volume is sufficient for the viewer It is necessary to secure the
[0028]
Therefore, as the size of the display module increases, the speaker system needs a large service
area to secure a sufficient volume for the viewer, and a large input is required for the speaker
system to secure a large sound pressure. Become.
[0029]
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5
As described above, there is a need to secure a certain strength of the diaphragm because there
is a demand on the market as a large demand for input resistance. Therefore, in order to ensure
the strength of the diaphragm, the diaphragm needs to have a somewhat large overall height It
becomes.
[0030]
The reason for this is that only the central portion of the elongated slim-shaped cone-shaped
diaphragm is driven by the voice coil, and the buckling strength of the diaphragm is improved,
and in addition, both ends in the lengthwise direction of the diaphragm The phase in the
amplitude of the diaphragm is also in phase with that of the voice coil to prevent the occurrence
of distortion and to ensure stable sound pressure frequency characteristics.
[0031]
As described above, in order to ensure the strength of the diaphragm, there is a constraint that
the overall height dimension of the diaphragm can not be lowered, which makes it impossible to
meet the market demand for a thinner speaker system. It had a problem.
[0032]
In addition, even if it is not possible to satisfy the market requirement of thinning in the
conventional speaker system, if it is attempted to lower the full height dimension of the
diaphragm, the strength of the diaphragm will be insufficient. The phase at both ends and the
phase of the voice coil do not become the same phase, which induces the occurrence of
distortion, deterioration of the sound pressure frequency characteristic, and the occurrence of
the quality danger of the occurrence of buckling of the diaphragm.
[0033]
The present invention solves the above-mentioned problems, and it is a speaker system that
realizes market requirements such as downsizing, thinning and space saving, while achieving
both high input resistance, high quality and high reliability, and further cost. It is an object of the
present invention to provide a speaker system which can satisfy even the dynamic requirements.
[0034]
In order to solve the above-mentioned problems, the speaker module of the present invention
comprises a back panel, a speaker arranged and attached in a row two or more on the back
panel, and a wiring means for connecting these speakers The two or more speakers are arranged
in a straight line, the wiring means is provided on the back panel, the terminal of the speaker is
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6
provided in a protruding direction opposite to the sound radiation direction of the speakers, and
the hole is provided on the back panel The speaker terminal is configured by inserting and fixing
the terminal of the speaker in the hole of the back panel.
[0035]
With such a configuration, the front panel is eliminated, and by arranging the small speakers in a
straight line, it is possible to obtain a speaker module having a slim shape and realizing
downsizing and thinning.
[0036]
And, by providing the wiring means in the back panel, it is possible to eliminate the air wiring in
the speaker module, to prevent the generation of abnormal noise such as flicker, and to carry out
the wiring easily and surely. Therefore, high input resistance, high quality, high reliability and
low price can be realized.
[0037]
Furthermore, by using a number of small speakers whose price is low due to the configuration in
which the front panel is eliminated and the mass production effect, it is possible to provide a
speaker module that can satisfy cost requirements.
[0038]
With the above configuration, the speaker module of the present invention has a slim shape,
which is a market demand for compactness, and although it is a speaker module that realizes
miniaturization and thinning, it is a market demand for high performance. It is possible to
provide a speaker module capable of achieving both high input resistance, high quality, high
reliability, and further satisfying cost requirements.
[0039]
The perspective view which looked at the speaker module of the present invention from the front
direction. The top view which looked at the speaker module of the present invention from the
back side. The perspective view seen from the front direction in another embodiment of the
speaker module of the present invention. External cross-sectional view of the electronic device of
the present invention Cross-sectional view of the mobile device of the present invention
appearance of the conventional electronic device Cross-sectional view of the conventional
speaker system
04-05-2019
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[0040]
Hereinafter, embodiments of the present invention will be described using the drawings.
[0041]
First Embodiment Hereinafter, the present invention will be described using a first embodiment.
[0042]
The present invention is a speaker module in which the longitudinal direction is disposed in the
longitudinal direction on both sides of a display module of a plasma television or a liquid crystal
television which is an image device, and eight speakers are arranged as a quantity of speakers
attached to the speaker module. Will be explained.
[0043]
FIG. 1 is a perspective view of the speaker module 7 of the present invention as viewed from the
front, FIG. 2 is a plan view of the speaker module 7 of the present invention from the back, and
FIG. 3 is a speaker module 7 of the present invention. FIG. 18 shows a perspective view of the
front view of the second embodiment of the present invention.
[0044]
Further, FIG. 4 shows an enlarged cross-sectional view of the main part of the speaker module 7
of the present invention, and FIG. 5 shows the speaker module 7 of the present invention as a
display module of a plasma television or liquid crystal television which is a recent thin video
device. It is the external view which arrange | positions and mounts the longitudinal direction in
the longitudinally long direction on the both sides | surfaces of.
[0045]
As shown in FIG. 1 to FIG. 5, the speaker module 7 is configured by arranging and attaching eight
speakers 5 on the back panel 2 in order to connect these speakers 5 to the back panel 2. Wiring
means 6 are provided.
[0046]
Here, in the speaker module 7, eight speakers 5 are arranged in a straight line, and printed
wiring is provided as wiring means 6 on the back panel.
04-05-2019
8
[0047]
With such a configuration, by arranging the small-sized speakers 5 in a straight line, it is possible
to realize the speaker module 7 that realizes size reduction and thickness reduction.
[0048]
And by providing the wiring means 6 in the back panel 2, the aerial wiring in the speaker module
7 can be eliminated, and the generation of abnormal noise such as a flicker can be prevented,
and the wiring can be carried out easily and surely. Therefore, high input resistance, high quality,
high reliability and low price can be realized.
[0049]
In particular, by using printed wiring, it is possible to wire with a very small thickness, and it is
possible to eliminate the presence of the speaker cord as compared to the conventional air wiring
in which the speaker cord is present. Thinning can be achieved.
[0050]
The front panel of the speaker module 7 according to the present invention is configured to
share the front panel of video equipment such as a plasma television and a liquid crystal
television, so compared to the conventional one using the front panel as a speaker system, By
eliminating the front panel, the thickness of the front panel can be reduced.
[0051]
Furthermore, in addition to eliminating the front panel, by using a large number of small
speakers 5 that are inexpensive due to mass production effects, it is possible to provide a speaker
module that can satisfy cost requirements.
[0052]
The frequency band that can be reproduced by the speaker module 7 is mainly middle to high,
and if low is required, a speaker system exclusively for low-frequency reproduction is separately
provided, and a plasma television or liquid crystal television as video equipment is provided. By
incorporating it, it becomes possible to reproduce the entire frequency band sufficiently.
[0053]
The speaker system dedicated to low-frequency reproduction does not have to be provided on
04-05-2019
9
the front of the video equipment as in the speaker module 7 dedicated to middle-high frequency
reproduction, by utilizing the wide directivity of the low frequency, and the empty space inside
the video equipment By making effective use of and mounting it, the effects can be fully
exhibited, and in particular, there is no hindrance to downsizing of the video equipment.
[0054]
Of course, in low-inch video equipment and the like, it is also possible to use without providing a
speaker system exclusively for low-frequency reproduction.
[0055]
Here, the details will be described below.
[0056]
As the speakers 5 attached to the back panel 2, small-sized micro-speakers generally used in
mobile phones and the like are used.
[0057]
Since a large number of speakers 5 of this type called microspeakers are produced by a
dedicated automated mass-production facility for use in mobile phones, the cost per unit is
extremely high compared to conventional video speakers due to the mass-production effect. The
cost of the speaker system can be reduced even if it is used in large numbers.
[0058]
Next, the configuration of the speaker 5 which is the micro speaker will be described.
[0059]
As shown in FIG. 4, a magnetic circuit 24 configured by sandwiching a magnetized magnet 21 by
an upper plate 22 and a yoke 23 is combined with a frame 26 made of resin, and a peripheral
portion of the frame 26 is flat. The diaphragm 27 is bonded, and the voice coil 28 for driving the
flat diaphragm 27 is coupled to the vicinity of the outer periphery of the flat diaphragm 27, and
the voice coil 28 is a magnetic gap of the magnetic circuit 24. It is combined and configured to fit
into 25.
[0060]
04-05-2019
10
The configuration of the speaker 5, which is a microspeaker, can reduce the total height size
because there is no damper, as compared with the conventional image speaker, and additionally,
the diaphragm is not a cone but a flat diaphragm. Therefore, the overall height can be further
reduced.
[0061]
Since the speakers 5 which are microspeakers are smaller in shape and smaller in overall height
than conventional speakers for video, a large number of speakers 5 can be realized because they
can realize only a small input resistance. The required input withstand is realized by using.
[0062]
Further, by setting the size of the voice coil 28 as large as possible and coupling it in the vicinity
of the outer peripheral portion of the diaphragm 27, the required heat resistance is realized by
making the heat dissipation of the voice coil 28 excellent.
[0063]
Then, by connecting the voice coil 28 in the vicinity of the outer peripheral portion of the
diaphragm 27, the phases at the amplitudes of both end portions in the longitudinal direction of
the diaphragm 27 can be made the same phase as the voice coil 28, thereby generating
distortion. Sound pressure frequency characteristics can be realized.
[0064]
Further, since the edge for supporting the diaphragm 27 on the peripheral portion of the frame
26 is integrally formed by inserting the diaphragm 27 with a material having high flexibility
different from that of the diaphragm 27, the input resistance is enhanced. It is possible to realize
wide band regeneration in the direction of expanding the low band.
[0065]
Here, the case where eight speakers are arranged in a row as the number of speakers 5 attached
to the back panel 2 has been described, but the present invention is not limited to this, and two,
four, six, ten, twelve, sixteen It is possible to freely set one, twenty, thirty, and so on.
[0066]
The minimum number of units to be arranged and arranged linearly may be at least two.
04-05-2019
11
[0067]
The number of speakers 5 attached to the back panel 2 includes the allowable dimensions of the
mounted television, the input resistance required for the speaker module, and the number
capable of securing the sound pressure level for satisfying the required volume. You can set it.
[0068]
By arranging the speakers 5 linearly arranged, it is possible to realize dimensions that can be
easily mounted on both sides of a plasma or liquid crystal display module of a television as a
speaker module.
[0069]
Here, although the external shape of the speaker 5 is a rectangular speaker, it may be round or
square.
[0070]
The external shape of the speaker 5 which can easily be mounted on both sides of the display
module is not limited to a rectangular shape, but may be a track shape or an elliptical shape, and
these external shape speakers are connected in the longitudinal direction of the speaker By
arranging them, it is possible to realize slimming more, to improve the space factor and save the
space of the speaker module.
[0071]
The small microspeakers used in the speaker module 7 are also rectangular, track, or oval
because of the conventional circular and square shapes at present with the miniaturization and
miniaturization of information communication terminals such as mobile phones. Since the shape
is becoming mainstream, the cost aspect of microspeakers of these shapes can also be obtained
inexpensively due to the mass production effect.
[0072]
As described above, as the type of the speaker 5 used in the speaker module 7, the case of using
a small-sized electrodynamic micro-speaker has been described, but the invention is not limited
thereto. And any type of speaker may be used as long as it is thin, and the same effect can be
obtained.
04-05-2019
12
[0073]
Next, the configuration of the back panel 2 will be described.
[0074]
The back panel 2 is provided with a hole for inserting and fixing the terminal 29 of the speaker
5, and this hole is a through hole and penetrates from the mounting surface of the speaker 5 of
the back panel 2 to the opposite side .
[0075]
Then, two terminals 29 of plus and minus poles provided in the form of a protrusion in the
direction opposite to the sound radiation direction of the speaker 5 are inserted into this hole to
fix the speaker 5 simultaneously with positioning.
[0076]
A wiring pattern 6 is provided on the side opposite to the side where the speaker 5 of the back
panel 2 is coupled, and the wiring pattern and the pin-shaped terminal 29 of the speaker 5
penetrating from the back panel 2 are soldered or the like It is connected by means.
[0077]
Of course, the wire connection means is not limited to soldering, and any wire connection means
such as welding, crimping, caulking, wire wrapping, etc. may be used. The electrical connection
can also be obtained by simply pressing the terminal 29 of the above into the through hole of the
back panel 2 in which the conductive portion is provided in advance.
[0078]
As described above, the eight speakers 5 are inserted into the holes provided in the back panel 2
by positioning the terminals 29 of the respective speakers 5 to be fixed, and then connected by
soldering or the like. By connecting to the back panel 2 in which the wiring pattern 6 is provided
in advance, the impedance of the eight speakers 5 can be matched to the output part of the video
equipment.
[0079]
Here, in order to improve the bonding strength between the back panel 2 and each of the
speakers 5, the bonding strength between the back panel 2 and each of the speakers 5 can be
obtained by fixing the back of the speakers 5 and the back panel 2 with an adhesive. The quality
04-05-2019
13
can be further improved, and the quality and reliability can be improved.
[0080]
Also, by using an adhesive with a high degree of flexibility as an adhesive for bonding the back
surface of the speaker 5 to the back panel 2, a flicker noise generated between the back surface
of the speaker 5 and the back panel 2 or An abnormal sound or the like due to resonance can be
prevented, and good sound reproduction with less distortion can be realized.
[0081]
Furthermore, it is also possible to bond using a double-sided tape or an adhesive instead of an
adhesive. In this case, a double-sided tape may be attached in advance to the bonding surface of
the back panel 2 with the rear part of the speaker 5 or an adhesive Since the speaker 5 can be
easily coupled by applying the above, productivity can be improved.
[0082]
These small-sized microspeakers are not attached to the speaker system by screwing in which
about four attachment holes are provided in each of the speakers, as in the conventional video
speakers.
[0083]
These small micro-speakers are usually attached by pressing the speaker 5 against the front
panel of the video equipment such as a plasma television or liquid crystal television and applying
pressure from the back side to press it as a mounting method. .
[0084]
For this reason, the positioning of the speaker 5 with respect to the front panel of video
equipment such as plasma television and liquid crystal television is important, and the back panel
2 is extended to the side to constitute the side panel 3. The production efficiency can be
improved by integrating the same material with the same material and using the side panel 3 as a
guide for the speaker 5.
[0085]
That is, as shown in FIG. 3, the outer dimensions of the frame of the speaker 5 and the inner
diameters of the two side panels 3 are set to be substantially the same size and fit, without
rattling. It realizes high precision positioning.
04-05-2019
14
[0086]
With this configuration, the back panel 2 and the two side panels 3 are simultaneously integrated
with the same material and configured by injection molding, so that the back panel 2 and the two
side panels 3 are instantaneously highly accurate. It can be assembled, and the improvement of
production efficiency and the reduction of price can be realized.
[0087]
And, even when eight speakers 5 are positioned on the assembly of the back panel 2 and the two
side panels 3, positioning can be performed efficiently by the effect of the guide, and even when
the speakers 5 are attached It is possible to realize the improvement of efficiency and the
reduction of price.
[0088]
In addition, since the back panel 2 and the two side panels 3 are integrated, the quality such as
occurrence of flicker between the back panel 2 and the two side panels 3, air leakage, and further
disassembly etc. Defects do not occur, and high strength and stable quality and reliability can be
realized.
[0089]
In addition, if the back panel 2 is configured by a printed wiring board, a so-called printed board,
the printed circuit board on which the wiring pattern of the speaker is printed can be easily
produced and obtained. It is possible to further improve productivity and lower prices.
[0090]
Further, by fixing the speaker module 7 from the inside to the front panel of video equipment
such as a plasma television and a liquid crystal television, it is possible to realize further
improvement in productivity and cost reduction.
[0091]
Here, with regard to the coupling means between the front panel of the video equipment and the
speaker module 7, from the shape of the slim speaker module 7, mounting holes and notches are
provided at two places on both ends of the back panel 2 Stable fixation can be realized.
04-05-2019
15
[0092]
In addition, for the purpose of improvement of productivity, it may be one place in the central
part, and on the other hand, in particular, in order to enhance the stability, a total of three places
may be provided at both ends and the central part.
[0093]
It is also possible to reduce screws and improve productivity by eliminating screwing and
providing a lock mechanism to make it press-fit for the purpose of further improving
productivity.
[0094]
As described above, the speaker module 7 according to the present invention can reduce the
number of screws for mounting the speaker compared to the conventional speaker system, and
can also reduce the number of production steps by screw tightening, so that the large price A
drop can be realized.
[0095]
As described above, the speaker 5 is sandwiched between the front panel of the video apparatus
and the back panel 2 provided with the printed wiring, and the speaker 5 is fixed and at the same
time, the terminal of the back of the speaker 5 is electrically connected. Thus, further
improvement in productivity and price reduction can be realized.
[0096]
In addition, although a front panel may be further provided in the speaker module 7, in this case
it is somewhat disadvantageous in terms of thickness reduction and price, but by improving the
positioning accuracy of the speaker 5 in the speaker module 7, the assembly accuracy is
improved. High quality and high reliability can be realized, and the strength of the entire speaker
module 7 can also be improved.
[0097]
Next, the external shape and dimensions of the speaker 5 and the speaker module 7 will be
described.
[0098]
The external shape of the speaker module 7 is preferably in the shape of a long and thin
04-05-2019
16
rectangle on the premise that the speaker module 7 is disposed on both sides of a display module
of a plasma television or a liquid crystal television as an image device.
[0099]
And, a small-sized micro-speaker called a small-sized micro-speaker that is currently used widely
for mobile phones etc. has a horizontal dimension of about 9 mm and a vertical dimension of
about 16 mm when the outer shape is a rectangular shape. A micro speaker having a direction,
that is, a total height dimension of about 3 mm is mainstream.
[0100]
As described above, if the external dimensions in the lateral direction which is the lateral
direction of the external dimensions of the speaker 5 are 12 mm or less and the external
dimensions in the longitudinal direction which is the longitudinal direction are 13 mm or more, It
is convenient to construct an elongated rectangular speaker module.
[0101]
When the speaker module 7 is configured by using this general-purpose micro speaker 5, when
eight speakers 5 are arranged in a straight line in the longitudinal direction, one of the external
dimensions of the speaker module 7 is arranged. The outer dimension in the lateral direction,
which is the lateral direction, is about 9 mm to about 12 mm, and can be 15 mm or less.
[0102]
This is because the lateral dimension in the lateral direction of the speaker module 7 is 1 to 1.25
times the lateral dimension in the lateral direction of the speaker 5 and is 1.5 or less. it can.
[0103]
The external dimensions in the longitudinal direction, which is the longitudinal direction, are
about 180 mm including holes and notches that are attachment means to the set, and a speaker
module of 150 mm or more can be obtained.
[0104]
On the other hand, the external dimensions in the thickness direction of the external dimensions
of the speaker module 7, that is, the overall height, can be about 5 mm, including the back panel,
and can be 8 mm or less.
04-05-2019
17
[0105]
With the above configuration, the aspect ratio of the external dimension in the longitudinal
direction which is the longitudinal direction of the external dimensions of the speaker module 7
to the external dimension in the lateral direction which is the lateral direction can be 10 or more.
It is possible to realize a speaker module capable of thinning with a high aspect ratio which has
not been achieved conventionally.
[0106]
As described above, the speaker module 7 in which eight small micro-speakers 5 are arranged in
a straight line in the longitudinal direction is substantially all plasma televisions and liquid crystal
televisions from the low inch size to the high inch size. And so on. The external dimensions of the
speaker module 7 can be optimized in terms of the mounting surface, the physical distribution
surface, the workability, and the like.
[0107]
Further, since the video module such as a plasma television and a liquid crystal television
equipped with the speaker module 7 has a thinner thickness, the speaker module 7 can achieve
thinner thickness, smaller size, and space saving than ever before.
[0108]
Further, since the speaker module 7 is configured by connecting a large number of small
speakers 5, it is possible to realize a sound quality with a high degree of clarity in the middle to
high frequency and a small distortion in sound quality.
[0109]
Furthermore, by separately incorporating a speaker system exclusively for low frequency
reproduction into the video apparatus, it becomes possible to satisfactorily reproduce low
frequency.
[0110]
And, by arranging wiring means such as printed wiring on the back panel, it is possible to
eliminate aerial wiring in the speaker module 7, to prevent generation of abnormal noise such as
flicker, etc. Further, wiring is easy and reliable. Thus, high input resistance, high quality, and high
reliability can be realized at low cost.
04-05-2019
18
[0111]
Furthermore, by using a large number of small microspeakers 5 that are inexpensive due to mass
production effects, it is possible to provide a speaker module 7 that can satisfy cost
requirements.
[0112]
Then, for high-inch video equipment, the speaker module 7 is used not only as a pair on the left
and right, but a large number of them are arranged in the vertical direction with this as the
minimum unit, and the required input resistance and sound pressure It is good also as a
mounting method which aims at adjustment.
[0113]
The above description has been made as the elongated rectangular speaker module on the
premise that it is disposed on both sides of the display module of a plasma television or a liquid
crystal television that is a video device. However, other usage methods than those described
below may be used.
[0114]
The following is based on the premise that it will be installed on a personal computer, a game
machine, an information communication device, etc. that is smaller than the above-mentioned
video equipment, such as a plasma television or a liquid crystal television. It is correspondence
when it is difficult to mount.
[0115]
When two or three speakers are used and arranged in a straight line in the longitudinal direction,
the outer dimension in the lateral direction, which is the short side of the outer dimensions of the
speaker module, is about 12 mm and 15 mm or less can do.
[0116]
The external dimensions in the longitudinal direction, which is the longitudinal direction, are
about 75 mm, including the attachment means to the set, and the speaker module is 50 mm or
more.
[0117]
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With the above configuration, the aspect ratio of the external dimension in the longitudinal
direction, which is the longitudinal direction of the external dimensions of the speaker module, to
the external dimension in the lateral direction, which is the lateral direction, can be 6 or more.
Thus, it is possible to realize a speaker module that can be thinned with a high aspect ratio.
[0118]
And, as described above, the speaker module arranged in a line in the longitudinal direction
using two or three small microspeakers should be mounted on a small personal computer, a
game machine, an information communication apparatus, etc. The external dimensions of the
speaker module can be optimized in terms of the mounting surface, the physical distribution
surface, the workability, and the like.
[0119]
Further, in the small personal computer, game machine, information communication apparatus,
and the like in which the speaker module is mounted, since the speaker module is thinned, it is
possible to realize thinning, downsizing, and space saving which are not conventionally made.
[0120]
Furthermore, with regard to these small electronic devices, not only mounting with the mounting
angle of the speaker module in the same direction as that of the display module, but also
mounting with an angle toward the outward direction, that is, the back direction, It may be
mounted at right angle.
[0121]
With such a configuration, it is possible to further reduce the external dimensions of the small
electronic device as viewed from the front, and to improve the spread of sound, which is a defect
unique to the small electronic device, and to achieve a sufficient stereo feeling. Can be used to
[0122]
As described above, the electronic device having the video display unit such as a television
receiver, a personal computer, a game machine, an information communication device, the
speaker module of the present invention, and the left and right both sides of the outer frame
portion of the video display unit. By arranging and mounting the longitudinal direction of the
speaker module in the horizontal direction in the horizontal portion, it is possible to realize
downsizing and thinning which are market requirements for compactness.
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20
[0123]
In addition, the longitudinal direction of the speaker module may be disposed laterally in the
upper and lower portions of the outer frame portion of the high-inch image display unit, and in
this case, a pair of each vertically By installing it, stereo reproduction becomes possible.
[0124]
However, only one pair may be mounted on one of the upper and lower sides of the outer
peripheral frame portion of the video display unit.
[0125]
In addition, if necessary, it may be mounted on both the left and right lateral parts and the upper
and lower parts of the outer peripheral frame part of the video display part. With such a
configuration, high input resistance and high sound pressure can be achieved. Leveling can be
realized.
[0126]
And, by providing the wiring means in the back panel, it is possible to eliminate the air wiring in
the speaker module, to prevent the generation of abnormal noise such as flicker, and to carry out
the wiring easily and surely. Therefore, high input resistance, high quality, high reliability and
low price can be realized.
[0127]
Furthermore, by using a large number of small-sized speakers whose cost is low due to mass
production effects, it is possible to provide a speaker module that can satisfy cost requirements.
[0128]
With the above configuration, the speaker module of the present invention is a speaker module
that realizes the miniaturization and thinning that are market requirements for compactness, but
the high input resistance that is a market requirement for high performance. It is possible to
provide a speaker module capable of achieving both high quality, high reliability, and also
satisfying cost requirements.
[0129]
Second Embodiment Hereinafter, the present invention will be described using a second
04-05-2019
21
embodiment.
[0130]
FIG. 6 shows a cross-sectional view of an automobile 60 which is a mobile device according to an
embodiment of the present invention, and the speaker module 7 of the present invention can be
used as a ceiling, an instrument panel, a sun visor, a seat, a rear tray, etc. , And used as part of a
car audio system and a car navigation system.
[0131]
With regard to the position where the speaker module of the present invention is mounted, any
position or part other than the above can be used such as headrest, armrest, cockpit, mirror,
meter, steering, pillar, door etc. It may be a position or a part.
[0132]
With this configuration, it is possible to realize downsizing and weight reduction of a mobile
device such as an automobile equipped with the speaker module by the effects of downsizing,
thinning and downsizing of the speaker module 7.
[0133]
Also, in terms of sound quality, the clarity of the middle to high range is high, and the sound
quality with less distortion can be realized, and if a separate low-pass reproduction speaker
system is separately provided, good reproduction on the low range is also possible. Become.
[0134]
Furthermore, by providing the wiring means in the back panel, the air wiring in the speaker
module 7 is eliminated, wiring is facilitated, abnormal noise such as flicker is prevented, high
input resistance, high quality, high reliability Due to the effect that the rigidity and the low price
can be realized, it is possible to realize the high quality, the high reliability and the low price of
the mobile device such as a car equipped with the speaker module 7.
[0135]
In particular, as an advantage when mounted on a mobile device such as an automobile, there is
a problem with conventional wireless wiring, that is, between the floating wire generated by
vibration when moving the mobile device and the inner wall of the enclosure of the speaker
system. It is possible to exert a great effect of being able to eliminate an abnormal sound such as
04-05-2019
22
a flicker due to contact.
[0136]
Therefore, it is possible to achieve a great effect that the improvement of the fuel consumption
and the improvement of the sound quality of the mobile device such as a car and the like, and the
price reduction, the high quality and the high reliability can be realized.
[0137]
Although the case where the speaker module 7 of the present invention is installed in a car as an
example of the mobile device has been described above, the mobile device such as a bicycle, a
motorcycle, a bus, a train, a ship, or an airplane is not limited thereto. So long as it is any device,
it can be mounted.
[0138]
And, it is possible to achieve a great effect that the improvement of the fuel consumption and the
improvement of the sound quality of the mobile device equipped with the speaker module 7 and
the price reduction, the high quality and the high reliability can be realized.
[0139]
The speaker module according to the present invention can be applied to a speaker module that
needs to be miniaturized or thinned.
[0140]
Reference Signs List 2 back panel 3 side panel 5 speaker 6 wiring means 7 speaker module 21
magnet 22 upper plate 23 yoke 24 magnetic circuit 25 magnetic gap 26 frame 27 diaphragm 28
voice coil 29 terminal 31 front panel 32 rear panel 34 enclosure 35 speaker 37 speaker system
41 magnet 42 upper plate 43 yoke 44 magnetic circuit 45 magnetic gap 46 frame 47 diaphragm
48 voice coil 49 damper 50 dust cap 60 automobile
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