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JP2014093555

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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 JP2014093555
Abstract: To provide a speaker that contributes to making it easy to hear voice from a speaker
mounted in a housing of an electronic device despite the simple structure, and an electronic
device equipped with the speaker. A speaker (1) mounted in a housing (11) of an electronic
device (10), wherein the hard key (12) disposed on the surface side of the housing (11) is used as
a diaphragm. [Selected figure] Figure 2
Speaker and electronic device equipped with the same
[0001]
The present invention relates to a speaker and an electronic device provided with the same.
[0002]
In recent years, while the size and weight of electronic devices such as mobile phones and tablets
have been reduced, the screen size of liquid crystal screens mounted on the front of electronic
devices has been increasing.
For this reason, there is no space for mounting a speaker on the surface side of the electronic
device, and as shown in FIG. 4, there are many cases where the speaker 31 is mounted on the
back side of the electronic device 40.
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[0003]
FIG. 5 is a view for explaining the structure of the speaker according to an example of the
conventional example shown in FIG. 4 and the electronic device provided with the speaker.
Referring to FIG. 5, the speaker 31 is mounted on the back side of the housing 41 of the
electronic device 40 by the double-sided tape 44. An LCD (liquid crystal display screen) 43 is
mounted on the surface side of the housing 41. A sound hole 45 is formed in the rear wall of the
housing 41. The first diaphragm 34 is disposed on the front side of the speaker 31 itself. A rear
air chamber 35 is disposed on the back side of the speaker 31 itself (an example in which the
speaker 31 is separated from the sound hole). By the operation of the speaker 31, the first
diaphragm 34 vibrates, and sound is output from the back side of the electronic device 40
through the sound hole 45.
[0004]
Further, Patent Document 1 proposes a speaker device for television in which a secondary
diaphragm is provided on the front side of the television, that is, on the display screen side.
[0005]
In Patent Document 2, speakers are mounted on the front side of the television, that is, on the
display screen side, and the cabinet capacity of the speaker is adjusted by the vibration of the
diaphragms arranged at various places, A speaker device for television has been proposed which
improves the bass characteristic of the sound transmitted from the front side of John.
[0006]
Patent Document 1: Japanese Patent Application Laid-Open No. 4-192795 Patent Application
Publication No. WO 2005-101896
[0007]
The following analysis is given by the present invention.
[0008]
However, according to the conventional example as shown in FIGS. 4 and 5, audio is output from
the back side of the electronic device.
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Usually, the user operates the electronic device while viewing the liquid crystal display screen on
the front side of the electronic device, so the sound output from the back side sounds small.
[0009]
Patent Document 1 does not disclose a speaker configuration that uses an existing member
having a function other than the diaphragm as the diaphragm.
[0010]
Although the structure which arranges a speaker in the back side of an electronic device is not
disclosed by patent document 2, and the speaker composition which newly provides various
diaphragms and partition plates is proposed, it is except a diaphragm. The structure which
utilizes the existing member which has a function as a diaphragm is not disclosed.
[0011]
Thus, despite the simple structure, it is desirable to implement a speaker and an electronic device
including the same that contribute to making it easy to hear the sound from the speaker mounted
in the housing of the electronic device.
[0012]
The present invention provides, in a first aspect, a speaker mounted in a housing of an electronic
device, and using a hard key arranged on the front surface side of the housing as a diaphragm.
The hard key is for causing the electronic device to execute a predetermined function in response
to a pressing or pressing release operation by the user, and is, for example, a ten key, a cursor or
a command button.
[0013]
According to a second aspect of the present invention, there is provided an electronic device in
which a speaker is mounted in a housing of the electronic device and the electronic device or a
predetermined member disposed on the surface side of the housing is used as a diaphragm.
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[0014]
The present invention can contribute to the following effects in the first and second aspects.
The speaker uses a hard key on the front surface side of the housing or the electronic device as a
diaphragm to output sound from the front surface side facing the user. It becomes easy to hear.
In addition, by utilizing the hard key as the diaphragm, the voice listening performance is
improved with a simple structure.
[0015]
It is a figure for demonstrating the principle of the dynamic type speaker which can be utilized as
a speaker which concerns on one Embodiment.
It is a figure explaining the structure of the speaker concerning one embodiment, and an
electronic device provided with the same.
It is a figure explaining the structure which concerns on the speaker which concerns on other
embodiment, and an electronic device provided with the same.
It is a figure explaining the utilization condition of the speaker which concerns on an example of
a prior art example, and an electronic device provided with the same.
It is a figure explaining the structure of the speaker based on an example of a prior art example
shown in FIG. 4, and an electronic device provided with the same.
[0016]
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An outline of an embodiment of the present invention will be described with reference to the
drawings. The reference numerals of the drawings appended to this summary are added for
convenience to the respective elements as an example for aiding understanding, and the present
invention is not intended to be limited to the illustrated embodiments.
[0017]
FIG. 1 is a view for explaining the principle of a dynamic type loudspeaker that can be used as a
loudspeaker according to a preferred embodiment. Referring to FIG. 1, the speaker 1 includes a
permanent magnet 2, a cylindrical voice coil 3 disposed around the permanent magnet, and a
first diaphragm 4 disposed on the front side of the speaker 1. ing. When a current flows in the
voice coil 3, the voice coil 3 vibrates by receiving a force corresponding to the change in current,
and this vibration is transmitted to the first diaphragm 4 and the front side of the speaker 1 (the
rear surface of the housing Audio is output from the The vibration is also transmitted to the back
side of the speaker 1 (the front side of the housing) through the back air chamber 5. In the
present embodiment, the vibration transmitted through the back air chamber 5 is used.
[0018]
Referring to FIG. 2, the speaker 1 according to the embodiment is mounted on the back side of
the housing 11 of the electronic device 10. The speaker 1 uses a predetermined member,
preferably the hard key 12, disposed on the surface side of the housing 11 as a diaphragm. As
the hard key 12 vibrates in response to the above-described vibration from the back side of the
speaker 1 with the operation of the speaker 1, sound is output from the front side of the
electronic device 10 pointing to the user, For example, a user who is viewing the screen on the
front side can easily hear voice.
[0019]
According to a preferred embodiment, the speaker 1 to the electronic device 10 may further
include a first diaphragm 4 on the front side of the speaker 1, that is, on the back side of the
electronic device 10, and the above-described hard key 12 is used as a second diaphragm 12.
According to this aspect, it is possible to further increase the sound pressure output from the
speaker 1.
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[0020]
Subsequently, an embodiment of the present invention will be described in detail with reference
to the drawings. In the following description, many specifics are made to aid the understanding
of the present invention for the purpose of explanation.
[0021]
FIG. 2 is a view for explaining the structure of a loudspeaker and an electronic device equipped
with the loudspeaker according to one embodiment. Referring to FIG. 2, the speaker 1 is attached
to the back surface side (the inner surface on the back surface side) of the housing 11 of the
electronic device 10 by a double-sided tape 14. An LCD (Liquid Crystal Display Screen) 13 and a
hard key 12 are mounted on the front side of the housing 11. A sound hole 15 is further formed
on the back side (rear wall) of the housing 11.
[0022]
A first diaphragm 4 is disposed on the front side of the speaker 1 and on the rear side of the
electronic devices 10 to 11. The speaker 1 is provided with a back air chamber 5 in a portion on
the front side of the electronic device 10 to the housing 11. The back surface of the hard key 12
which is on the front surface side of the electronic device 10 and which is on the back surface
side of the speaker 1 faces the back air chamber 5. The hard key 12 is used as the second
diaphragm 12.
[0023]
The audio functions of the speaker 1 and the electronic device 10 described above will be
described. When the speaker 1 operates, the first diaphragm 4 on the front side of the speaker 1
(the back side of the electronic device 10 to the housing 11) vibrates, and the sound is
transmitted from the sound hole 15 on the back side of the electronic device 10 It is sent out. At
the same time, the vibration of the speaker 1 is caused by the vibration of the hard key (second
diaphragm) 12 on the back side of the speaker 1 (the surface side of the electronic device 10 to
the housing 11) through the rear air chamber 5. Audio is also output from the front side of the
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electronic device 10. Thus, the sound pressure level is improved by outputting sound from both
sides of the electronic device 10, and a user who is looking at the LCD 13 on the front surface
side of the electronic device 10 can hear a larger sound.
[0024]
This improvement can be realized with a simple configuration using an existing member, that is,
the hard key 12, and the electronic device 10 does not have to be equipped with a new acoustic
device.
[0025]
In the embodiment, an example in which the speaker 1 is mounted on the back side of the
housing 11 to the electronic device 10 has been described with reference to FIG.
Next, as another embodiment, an example in which the speaker 1 is mounted on the front side of
the housing 11 to the electronic device 10 will be described with reference to FIG. In addition,
the speaker 1 etc. which concern on this other embodiment shall be able to refer to the said
embodiment suitably about the point which has a structure similarly to the said embodiment, and
in this embodiment, the said implementation is mainly performed. The differences with the form
will be described.
[0026]
Referring to FIG. 3, the speaker 1 is mounted on the front side in the housing 11 to the electronic
device 10. As a result, the distance between the surface hard key 12 and the speaker 1 is
shortened. The speaker 1 can be attached to the inside of the housing 11 by the double-sided
tape 14 or may be attached by other methods.
[0027]
As mentioned above, although one Embodiment of this invention was described, this invention is
not limited to one Embodiment mentioned above, The range which does not deviate from the
basic technical idea of this invention is the further deformation | transformation * substitution.
Adjustments can be made.
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[0028]
The disclosures of the above-mentioned patent documents are incorporated herein by reference.
Within the scope of the entire disclosure of the present invention (including the scope of the
claims), modifications and adjustments of the embodiments or examples are possible based on
the basic technical concept of the invention. In addition, various combinations or selections of
various disclosed elements (including the respective elements of the respective claims, the
respective elements of the respective embodiments and the examples, the respective elements of
the respective drawings, and the like) within the scope of the claims of the present invention Is
possible. That is, the present invention of course includes the entire disclosure including the
scope of the claims, and various modifications and alterations that can be made by those skilled
in the art according to the technical concept.
[0029]
REFERENCE SIGNS LIST 1 speaker 2 permanent magnet 3 voice coil 4 first diaphragm 5 back air
chamber 10 electronic device 11 housing 12 hard key, second diaphragm 13 LCD (liquid crystal
display screen) 14 double-sided tape 15 sound hole
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