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JP2007027923

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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
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2007027923
An object of the present invention is to secure waterproofness inside a housing. A mounting
structure of an exciter for a panel type speaker and an exciter for a panel type receiver is such
that a panel which is a diaphragm of a speaker or a receiver is supported by a housing through
an elastic suspension, The gap between the sub frame and the panel was sealed using a thin film
such as a waterproof film to make the inside of the device a waterproof area, and the suspension
and the exciter were housed in the waterproof area. Moreover, the housing | casing or said panel
which protected this film were provided on thin films, such as said waterproof film. Furthermore,
the housing to be protected is a subframe provided separately from the housing of the device.
Furthermore, the fastening member which is a base material sandwiching the elastic material of
the suspension is also used as the thin film such as the waterproof film. [Selected figure] Figure 1
Mounting structure for exciter for panel type speaker and exciter for panel type receiver
[0001]
The present invention relates to a mounting structure for a panel type speaker exciter or a panel
type receiver exciter, and more particularly to a waterproof mounting structure for a small
portable device such as a mobile phone.
[0002]
In recent small mobile devices such as mobile phones, many panel speakers or panel receivers
use a transparent panel provided for protecting a display device such as a liquid crystal device as
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a panel that is a diaphragm of a speaker or receiver. It has been used.
With regard to devices using such panel type speakers or panel type receivers, the focus has
been on measures against impact. In order to avoid destruction of the exciter (consistent with the
actuator) due to impact, a proposal has been made such that an impact absorbing material is
disposed on both plate surfaces of the piezoelectric diaphragm (see, for example, Patent
Document 1).
[0003]
However, in a device using a panel type speaker or a panel type receiver, in addition to such an
impact problem, it is difficult to satisfy both the sound pressure and waterproof characteristics
depending on the mounting structure of the exciter. was there. This problem will be described
with reference to FIGS. FIG. 5 is a view of a mobile phone using a panel type speaker or a panel
type receiver, and FIG. 5 (a) is a plan view of the mobile phone 30 using a panel type speaker or
a panel type receiver. There is provided a panel 20 which doubles as a diaphragm of a speaker or
panel receiver. The panel 20 is made of, for example, a transparent material such as an acrylic
material so that the liquid crystal display device 32 provided at the rear of the panel can be seen
through, and the exciter 22 is a liquid crystal display at the rear of the panel Mounted above the
device 32.
[0004]
5 (b) is a cross-sectional view taken along the line A-A 'of FIG. 5 (a). The panel 20 is supported by
the casing 18 by the suspension 36 as a support member, and the liquid crystal display 32 is a
panel with a gasket 34 such as urethane foam. It is supported by 20. Further, an exciter 22 is
attached to the panel 20 to vibrate the panel 20 to generate a sound. The problem is the
suspension 36. This problem will be described with reference to FIG. 6 which is a conventional
example of the enlarged view of a portion B in FIG. 5 (b). In the following drawings, similar
members are denoted by the same reference numerals.
[0005]
In FIG. 6, a suspension 36 is composed of a continuous foam 26, a substrate 24 such as PET
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sandwiching the continuous foam 26, and an adhesive 12 or 16 such as acrylic. If the suspension
36 is made of a relatively hard material such as an independent foam or silicone rubber, the
panel 20 is rigidly supported by the housing 18, and the vibration of the panel 20 is inhibited to
lower the sound pressure. That is, if a rubber ring used in a waterproof structure of a watch is
used as a suspension to realize a waterproof structure, the sound pressure drops and the speaker
function is lost. Therefore, it is desirable to make the suspension 36 a soft material such as a
continuous foam which does not inhibit the vibration of the panel 20. However, since the
continuous foam has a structure in which a series of cells are connected, water enters through
the cells and the structure is not waterproof. Therefore, the moisture shown by the line 28 in FIG.
6 passes through the continuous foam body 26 from the gap between the case 18 and the panel
20 and enters the inside of the case. Moisture entering through the side surfaces of the
suspension 36 may cause water droplets or fog on the internal liquid crystal display or panel,
and may adversely affect other electronic components such as an exciter. As described above, in
the conventional mounting structure of the panel-type speaker exciter and the panel-type
receiver exciter, there is a problem that if the sound pressure is increased, the waterproofness of
the device can not be maintained.
[0006]
Japanese Patent Application Publication No. 2004-104327
[0007]
The problem to be solved is that, in an apparatus using a panel type speaker and a panel type
receiver, when trying to increase the sound pressure, the waterproofness of the apparatus can
not be maintained.
[0008]
The mounting structure of the exciter for a panel type speaker and the exciter for a panel type
receiver according to the present invention is such that the panel which is the diaphragm of the
speaker or receiver is supported by the housing through an elastic suspension, A gap between
the sub-frame and the panel is sealed using a thin film such as a waterproof film to make the
inside of the device a waterproof area, and the suspension and the exciter are accommodated in
the waterproof area. .
[0009]
Further, the mounting structure of the exciter for a panel type speaker and the exciter for a panel
type receiver according to the present invention is characterized in that a casing for protecting
the film or the panel is provided on a thin film such as the waterproof film.
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[0010]
Further, the mounting structure of the exciter for a panel type speaker and the exciter for a panel
type receiver according to the present invention is characterized in that a fastening member
which is a base material sandwiching an elastic material of the suspension is also used as a thin
film such as the waterproof film.
[0011]
The mounting structure of the exciter for a panel type speaker and the exciter for a panel type
receiver according to the present invention is characterized in that a continuous foam is used as
the elastic material for the suspension.
[0012]
The mounting structure of the exciter for a panel type speaker and the exciter for a panel type
receiver according to the present invention is that a casing for protecting a thin film such as the
waterproof film is a sub-frame provided separately from the casing of the device. It is
characterized by
[0013]
According to the present invention, since the support of the panel itself is made of a soft material
such as a conventional continuous foam, there is no deterioration in acoustic characteristics, and
the waterproofness inside the housing is achieved by the film material or the substrate disposed
between the housing and the panel. Can be secured.
In addition, by protecting the waterproof film material or the substrate with a housing or a panel
so that the waterproof film material or the substrate is not exposed to the surface of the device,
mechanical damage to the waterproof film material or the substrate can be prevented.
Furthermore, a panel-type speaker exciter and panel-type having a waterproof structure can be
inexpensively arranged because the portion of the fastening member by the PET-based substrate
attached to apply the acrylic adhesive to the upper and lower sides of the continuous foam
material is arranged for waterproofing. The mounting structure of the receiver exciter can be
realized.
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[0014]
The mounting structure of the exciter for a panel type speaker and the exciter for a panel type
receiver according to the present invention is such that the panel which is the diaphragm of the
speaker or receiver is supported by the housing via an elastic suspension, The gap between the
frame and the panel is sealed with a thin film such as a waterproof film to make the inside of the
device a waterproof area, and the suspension and the exciter are housed in the waterproof area.
Moreover, the housing | casing or said panel which protected this film were provided on thin
films, such as said waterproof film.
Furthermore, the housing to be protected is a subframe provided separately from the housing of
the device.
Furthermore, the fastening member which is a base material sandwiching the elastic material of
the suspension is also used as the thin film such as the waterproof film.
[0015]
FIG. 1 is a partial sectional view of a first embodiment of a mounting structure for a panel type
speaker exciter and a panel type receiver according to the present invention, and FIG. 1 is a panel
type speaker shown in FIG. It is an enlarged view of B section of a mobile telephone using a panel
type receiver.
In FIG. 1, a panel 20 is supported by a housing 18 by a suspension 36 comprising a continuous
foam 26, a base 24 such as PET sandwiching the continuous foam 26, and an adhesive 16 such
as acrylic. ing.
Here, the base material 24 such as PET is a fastening member. An exciter 22 is attached to the
panel 20 to vibrate the panel 20 to generate a sound. Further, the gap between the housing 18 of
the device and the panel 20 is sealed by a thin film 14 such as a waterproof film having adhesive
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members 12 and 15 provided on both sides. A thin film 14 such as a waterproof film is provided
so as to cover all four sides of the panel 20. Further, in order to protect the film on a thin film 14
such as a waterproof film, a panel 20 is extended to cover the thin film 14 such as the
waterproof film (left side in FIG. 1). The mechanical damage of the thin film 14 is prevented.
[0016]
Thus, in the mounting structure of the present invention, the gap between the housing 18 of the
device and the panel 20 is sealed by the thin film 14 such as a waterproof film, and the inside of
the housing 18 of the device is a waterproof region. The exciter 22 is housed in the waterproof
area. Therefore, the moisture shown by the line 28 in FIG. 1 tries to enter from the gap between
the housing 18 of the device and the panel 20 but is not blocked by the thin film 14 such as a
waterproof film and does not enter the inside of the housing 18 , Waterproof structure has been
realized. On the other hand, since the panel 20 uses the continuous foam body 26 as an elastic
material as in the prior art, the sound pressure as a speaker and receiver does not become small.
In addition, it is well known that the portable panel type speaker using the exciter can be applied
to the panel type receiver with the same structure by performing electrical processing, and the
exciter described in this specification is also applicable to the panel type speaker It is premised
that it can also be applied to panel type receivers. In addition, although the thin film 14 such as a
waterproof film may be exposed to the outside when configured in this way, the panel 20 covers
the thin film 14 such as a waterproof film by stretching the panel 20 beyond the position of the
suspension. Protection from mechanical damage. The thin film 14 such as a waterproof film may
be waterproof, and is not limited to general materials such as PI, PET, and PC.
[0017]
FIG. 2 is a partial cross-sectional view of a second embodiment of a mounting structure for a
panel type speaker exciter and a panel type receiver according to the present invention, and FIG.
2 is a panel type speaker shown in FIG. It is an enlarged view of B section of a mobile telephone
using a panel type receiver. 2 differs from FIG. 1 in that mechanical protection of the thin film 14
such as a waterproof film is achieved by extending the casing 18 of the device in the direction in
which it overlaps the panel 20, and that the panel 20 is suspended It is a point supported by the
sub-frame 40 by 36. Here, in general, the housing of the device is constituted of a plurality of
housing parts, and the part called "sub-frame" in the present invention is manufactured
separately from "the housing of the device". There is no problem even if "" is expressed as "case".
In the present specification, “sub-frame” and “housing” are expressed using different
expressions because of the problems of die cutting and incorporation in manufacturing of the
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housing. In the second embodiment shown in FIG. 2, since the panel 20 is supported by the subframe 40, it is easy to demold the casing 18 of the device, and there is an effect that the
incorporation of the device is good.
[0018]
FIG. 3 is a partial cross-sectional view of a third embodiment of a mounting structure for a panel
type speaker exciter and a panel type receiver according to the present invention, and FIG. 3 is
the panel type speaker shown in FIG. It is an enlarged view of B section of a mobile telephone
using a panel type receiver. FIG. 3 differs from FIG. 1 in that the mechanical protection of the
thin film 14 such as a waterproof film is provided with a sub-frame 42 provided separately from
the housing of the device, projecting in a direction overlapping with the panel 20. It is a point
that has been made. Also in the third embodiment of FIG. 3, since the thin film 14 such as a
waterproof film is protected by the sub-frame 42, the die 18 of the device case 18 can be easily
removed and the device can be easily incorporated. It has the same effect.
[0019]
FIG. 4 is a partial cross-sectional view of a fourth embodiment of a mounting structure for a
panel type speaker exciter and a panel type receiver according to the present invention, and FIG.
4 is a panel type speaker shown in FIG. It is an enlarged view of B section of a mobile telephone
using a panel type receiver. FIG. 4 is similar to FIG. 2 except that a wide suspension 36 is used,
and a fastening member 24 which is a base material sandwiching the elastic material of the
suspension 36 serves as a thin film such as a waterproof film. It is a point that is shared. In the
fourth embodiment shown in FIG. 4, by using a waterproof film or a base material for the
fastening member 24, it is possible to omit a thin film such as a waterproof film, and in the
conventional process, It is possible to realize waterproofness at low cost without damaging the
characteristics of the In addition, the same effects can be obtained as it is easy to die-cut the
housing 18 of the device and that the incorporation of the device is good.
[0020]
As described above, according to the mounting structure of the exciter for a panel type speaker
and the exciter for a panel type receiver of the present invention, it is possible to ensure
waterproofness inside the housing without deterioration of acoustic characteristics. Also,
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mechanical damage to the waterproof film material or substrate can be prevented. Furthermore,
since the fastening member of the continuous foam material is disposed for waterproofing, a
waterproof structure can be realized at low cost. Furthermore, since the sub-frame is used, there
is also an effect that the mold 18 of the device can be easily removed and the device can be
easily incorporated.
[0021]
It is a fragmentary sectional view of the 1st example of the mounting structure of the exciter for
panel type speakers according to the present invention and the exciter for panel type receiver. It
is a fragmentary sectional view of the 2nd example of the mounting structure of the exciter for
panel type speakers and the exciter for panel type receivers by this invention. It is a fragmentary
sectional view of a 3rd example of mounting structure of an exciter for panel type speakers and
an exciter for panel type receivers by the present invention. It is a fragmentary sectional view of
the 4th example of the mounting structure of the exciter for panel type speakers and the exciter
for panel type receivers by this invention. FIG. 1 is a diagram of a mobile phone using a panel
type speaker or a panel type receiver. It is a prior art example of the B section enlarged view of
FIG.5 (b).
Explanation of sign
[0022]
30 Equipment using panel type speaker or panel type receiver 20 Panel 36 Suspension 18 Case
14 Thin film such as waterproof film 24 Fastening member 26 Continuous foam 40, 42, 44 Subframe 22 Exciter
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