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JP2006303578

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP2006303578
The present invention provides a speaker device having a wiring structure capable of shortening
a time for attaching a wiring and preventing generation of an abnormal sound due to a collision
between the wiring and a housing. A speaker box includes a second casing having a plurality of
ribs, and a first casing having a pressing rib attached to the second casing and formed in a mesh
shape or the like. Each rib has a recess for fixing each wire, and is formed to project at a
predetermined position on the inner surface of the second housing. Each wire is disposed in the
recess of each rib, and fixed to each rib in a state of being floated from the inner surface of the
second housing by a predetermined height. A cushion member is attached at a position covering
each rib and each wire. Furthermore, in the state where the first housing is attached to the
second housing, the cushion member is pressed to each rib side by the pressing rib provided on
the inner surface of the first housing. [Selected figure] Figure 7
Speaker device
[0001]
The present invention relates to a wiring structure in a speaker device.
[0002]
2. Description of the Related Art Conventionally, a speaker device that has a vibration system
such as a voice coil, a diaphragm, and a frame and a magnetic circuit and is accommodated in an
enclosure (casing) is known.
01-05-2019
1
In such a speaker device, at a predetermined position of the enclosure or the speaker device,
each lead of the voice coil is electrically connected to the wiring drawn from the amplifier side.
As a result, signals and power are input from the amplifier side.
[0003]
In such a speaker device, various wiring structures capable of preventing the disconnection and
the like of the wiring have been proposed.
[0004]
For example, a guide groove for guiding a speaker cord is provided at a predetermined position
of the enclosure, the speaker cord is fitted in the guide groove, and the speaker cord is fixed by a
plurality of ribs provided in the guide groove. A structure has been proposed (see, for example,
Patent Document 1).
Also, a stopper having a locking portion for temporarily locking the speaker cord, and a fitting
portion into which the stopper is fitted, the stopper locking the speaker cord is fitted into the
fitting portion, and the stopper is rotated A wiring structure has been proposed in which a
speaker cord is fixed to a speaker body (see, for example, Patent Document 1). Thereby, the
workability at the time of fixing the speaker cord is improved.
[0005]
In addition, in order to prevent abnormal noise generation due to contact between the cord of the
speaker system and other parts, a cord support is provided in the speaker cabinet, and the cord
support is used to support the cord. A wiring structure of cords has been proposed (see, for
example, Patent Document 2).
[0006]
In addition, the vehicle-mounted speaker apparatus attached in the recessed part of a spare tire
is known (for example, refer patent document 3).
01-05-2019
2
In this in-vehicle speaker device, the speaker unit is accommodated in the speaker box, and the
cord drawn from the speaker unit is routed around the floor of the trunk room through the space
in the speaker box. There is also known a headphone having a structure with high reliability of a
cord connecting between the speaker housings (see, for example, Patent Document 4). In this
headphone, such a cord is accommodated in the groove-like guide portion at a position
corresponding to the middle portion of the connection portion inside the headband, and a
plurality of bosses are provided at the position corresponding to the vicinity of the connection
member. Is held by
[0007]
JP-A-6-284487 JP-A-11-55775 JP-A-7-137581 JP-A-2001-245377
[0008]
An object of the present invention is to provide a speaker device having a wiring structure which
can shorten the attachment time of the wiring and can prevent the generation of an abnormal
sound due to a collision between the wiring and the casing.
[0009]
The invention according to claim 1 is a speaker device, which is provided in a speaker unit
having a voice coil, a wire electrically connected to the voice coil, and a position facing the wire,
and fixes the wire. A housing having a plurality of ribs, each of the ribs being provided at a
position corresponding to a predetermined position of the wiring in the housing, and the wiring
is in a state of being floated from the housing It is characterized in that it is fixed to each of the
ribs.
[0010]
In one embodiment of the present invention, the speaker device is provided at a position facing
the wire, a speaker unit having a voice coil, a wire electrically connected to the voice coil, and a
rib for fixing the wire. A housing having a plurality of housings, each of the ribs being provided
at a position corresponding to a predetermined location of the wiring in the housing, and the
wiring being in a state of being floated from the housing It is fixed to each of.
[0011]
The above speaker device includes a speaker unit having a voice coil, a wire electrically
connected to the voice coil, and a housing provided at a position facing the wire and having a
plurality of ribs for fixing the wire. It comprises and is constituted.
01-05-2019
3
[0012]
In particular, in this speaker device, each of the ribs is provided at a predetermined position of
the wiring, for example, at a position corresponding to each predetermined interval of the wiring
in the housing, and the wiring is in a state of floating from the housing It is fixed to each.
Thereby, when the speaker device is driven, the movement of the wiring to the housing side is
restricted, and the collision of the housing and the wiring can be prevented.
Therefore, it is possible to prevent the generation of abnormal noise such as chattering noise
(flickering noise), and to prevent the sound quality from being degraded.
[0013]
In this speaker device, in order to reinforce the fixing of the wire to each rib, the adhesive is not
applied on the wire.
Therefore, when an adhesive is applied on the wiring in the assembly process of the speaker
device, it is not necessary to provide a waiting time for drying the adhesive, and accordingly, the
time for attaching the wiring is shortened, and thus the speaker The assembly time of the device
can be shortened.
[0014]
In one aspect of the above speaker device, each of the ribs has a recess for fixing the wiring, and
a bottom surface of the recess is located on the same surface of the rib as a lower end portion of
the rib. It is provided at a position corresponding to a predetermined height from the inner
surface of the housing, and the portion of the wiring is disposed on the bottom surface.
[0015]
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4
In this aspect, each of the ribs has a recess for fixing the wiring.
The bottom surface of the recess is provided in the rib at a position corresponding to a
predetermined height from the inner surface of the housing located on the same surface as the
lower end of the rib, and the wiring portion is on the bottom surface of the recess Is located in
In a preferred example, according to various aspects of the speaker device, it is preferable that
the predetermined height be a height at which the wiring and the housing do not collide when
driven.
As a result, when the speaker device is driven, a collision between the housing and the wire can
be reliably prevented, and an abnormal noise can be reliably prevented.
[0016]
In another aspect of the above speaker device, it has a cushion member including an adhesive
surface, the cushion member is attached on each of the ribs via the adhesive surface, and the
wiring is covered by the cushion member. ing.
[0017]
In this aspect, it has a cushion member including an adhesive surface to which an adhesive is
applied or a double-sided tape is attached.
In a preferred example, the cushion member is preferably made of a member having an elastic
function such as sponge or urethane. And the cushion member is attached on each of the ribs via
the adhesive surface. This can prevent the wiring from being detached from the rib when the
speaker device is driven. In addition, since the wiring is covered by the cushion member, the
movement of the wiring to the upper side of the housing is restricted when the speaker device is
driven.
[0018]
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5
In another aspect of the above speaker device, the portion of the wiring disposed on the bottom
surface of the recess is sandwiched by the side wall of the recess and the bottom surface and the
cushion member. As a result, the portion of the wiring disposed on the bottom of the recess of
each rib can be reliably fixed by each rib and the cushion member.
[0019]
In another aspect of the above speaker device, the speaker device further includes another
housing attached to the housing, and the other housing attaches the cushion member in a state
where the other housing is attached to the housing. It has the other rib which holds down to the
said rib side and the said wiring side.
[0020]
In this aspect, it has another housing attached to the housing.
The other case has another rib for pressing the cushion member to the rib side and the wiring
side when the other case is attached to the case. In a preferred example, the other ribs can be
formed in a mesh, grid or flat shape. Thereby, when the speaker device is driven, movement of
the wiring to not only the housing side but also to the other housing side is restricted, and
collision of the housing and the other housing with the wiring can be prevented. Therefore, it is
possible to prevent the generation of abnormal noise such as chattering noise (flickering noise),
and to prevent the sound quality from being degraded.
[0021]
Hereinafter, preferred embodiments of the present invention will be described with reference to
the drawings.
[0022]
[Speaker Device Configuration] The speaker device 100 according to the embodiment of the
present invention is a phase-reversal (bass reflex) speaker device that emits sound waves from
both the front side and the back side of the diaphragm, and is a subwoofer. Type speaker device.
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6
The speaker device 100 can be suitably used as a vehicle-mounted speaker device. As shown in
FIG. 1, for example, when the speaker device 100 is applied to a wagon-type vehicle 300, the
speaker device 100 is installed at a predetermined position in a luggage compartment 300b
provided at the rear of the rear seat. In wagon type vehicle 300, the space corresponding to
cargo room 300b and the space provided with a seat on which a passenger is seated are
connected. Therefore, in the following, those spaces are collectively called vehicle room 300a.
[0023]
First, the configuration and the like of the speaker device 100 according to the present invention
will be described with reference to FIGS.
[0024]
FIG. 2 shows a perspective view when the speaker device 100 is observed from the front side.
FIG. 3 shows a perspective view when the speaker device 100 is observed from the back side.
FIG. 4 is a perspective view corresponding to FIG. 2 and a partial cross-sectional view showing a
part of the speaker device 100. As shown in FIG. FIG. 5 is a component of the speaker device
100, and is a half sectional view when the speaker unit 80 which is a sound generation source is
cut along a plane passing through the central axis L1. FIG. 6 is a perspective view when the
speaker device 100 is observed from the front side, and is a perspective view showing an internal
configuration of the speaker device 100. As shown in FIG. FIG. 7 is a cross-sectional view taken
along the line A-A 'in FIG. 1 and shows a state where the speaker device 100 is attached to a
predetermined position in the loading space 300b.
[0025]
The speaker device 100 includes a speaker unit 80 and a speaker box 55 as a housing that
accommodates the speaker unit 80.
[0026]
First, the configuration of the speaker box 55 will be described.
[0027]
The speaker box 55 includes a first housing 50 and a second housing 51.
01-05-2019
7
[0028]
The first housing 50 is attached to the second housing 51 and has a function as an upper lid that
covers an inner portion of the second housing 51.
The first housing 50 has one upper wall 50a and a plurality of side walls 50b integrally formed
with the upper wall 50a, and has a substantially box-like shape.
A plurality of attachment portions 50d (see FIG. 6) at positions corresponding to the plurality of
attachment portions 51d (see FIG. 6) provided inside the upper wall 50a and inside the second
housing 51 described later. 9) are provided.
A bass reflex port 50c as an opening is formed on one of the side walls 50b. The bass reflex port
50c plays a role of radiating the sound wave emitted from the back side of the diaphragm 10
which is an element of the speaker unit 80 in the direction of the arrow Y3 as described later.
Further, when the side wall 50b on which the bass reflex port 50c is formed is viewed from the
front, hinges 61 are provided at the left and right positions of the bass reflex port 50c.
Furthermore, a plurality of fixing screws 60 are provided on the upper wall 50a and in the
vicinity of the corner of the side wall 50b opposite to the side wall 50b on which the plurality of
hinges 61 are provided. The fixing screw 60 and the hinge 61 are, as shown in FIG. 7, the tire
house in the cargo compartment 300 b of the wagon type vehicle 300 in a state where the
speaker device 100 is opposed to the spare tire 201 with a fixed gap 250. It has a function of
fixing to the portion 300c.
[0029]
The second housing 51 includes a first portion 51a having a substantially cup shape, a second
portion 51b formed to extend outward from an outer peripheral end of the first portion 51a, and
a second portion 51b. And a third portion 51c formed to extend outward from the outer
peripheral end side of the portion 51b. Hereinafter, the portion combining the first portion 51a,
the second portion 51b, and the third portion 51c will be generically referred to as "sound
emitting shape portion".
01-05-2019
8
[0030]
The first portion 51 a is responsible for housing and supporting the speaker unit 80. The bottom
portion 51ab of the first portion 51a has flatness, and a grille 51ac formed in a mesh shape or a
lattice shape is formed on the bottom portion 51ab. The grille 51 ac has a function of
transmitting a sound wave emitted from the front side of the diaphragm 10 (see FIG. 5), which is
an element of the speaker unit 80, in the direction of the arrow Y1 outside the first portion 51a.
As shown in FIG. 7, the second portion 51b, which is a feature of the present invention, has a
curved shape with respect to the radiation direction (traveling direction) of the sound wave
emitted from the speaker unit 80. Further, the second portion 51b is formed in a substantially
annular shape in a plan view, and further, as shown in FIG. 7, is formed to have a curved shape
substantially the same as the shape of the side portion 201a of the spare tire 201 There is.
Therefore, the length (width) d1 along the curved surface of the second portion 51b in the radial
direction of the spare tire 201 is the side surface portion 201a of the spare tire 201 in the radial
direction of the spare tire 201, as shown in FIG. The length along the curved surface of is set to
substantially the same value. The third portion 51 c has flatness, and its outer shape is formed in
a substantially rectangular shape. In addition, a plurality of attachment portions 51d are
provided inside the second housing 51 and at appropriate positions on the first portion 51a, the
second portion 51b, and the third portion 51c. There is. Each attachment portion 51 d is fitted
with a plurality of attachment portions 50 d (see FIG. 9) provided inside the above-described
second casing 50, and the first casing 50 is engaged with the second casing 51. Have the
function of fixing to
[0031]
Next, the configuration and the like of the speaker unit 80 will be described.
[0032]
The speaker unit 80 is comprised by the magnetic circuit 20, the vibration system 21, and other
members, as shown in FIG.
[0033]
The magnetic circuit 20 has a yoke 1, a magnet 2 and a plate 3 and is configured as an external
magnet type magnetic circuit.
01-05-2019
9
The yoke 1 has a columnar pole portion 1a and a flange portion 1b extending outward from the
lower end portion of the outer peripheral wall of the pole portion 1a.
The magnet 2 has an annular shape and is mounted on the flange portion 1 b. The plate 3 has a
substantially annular shape and is mounted on the magnet 2. An air gap (magnetic gap 17) is
formed between the outer peripheral wall of the pole portion 1a which is an element of the yoke
1 and the inner peripheral wall of the plate 3 and the like.
[0034]
The vibration system 21 has a frame 6, a voice coil bobbin 7, a voice coil 8, a damper 9, a
diaphragm 10, an edge 11 and a cap 12.
[0035]
The frame 6 has a substantially cup-like shape and has a function of supporting various elements
constituting the speaker unit 80.
[0036]
The voice coil bobbin 7 has a substantially cylindrical shape, and is provided at a position
covering the vicinity of the upper end portion of the pole portion 1 a which is an element of the
yoke 1.
[0037]
The voice coil 8 is wound in the vicinity of the lower end portion of the outer peripheral wall of
the voice coil bobbin 7 and has two plus and minus lead wires (not shown).
Each positive lead is an input wiring of an L (or R) channel signal, and each negative lead is an
input wiring of a ground (GND: ground) signal.
The two plus and minus lead wires are respectively connected to the terminal portions 14a and
14b provided on the frame 1 (see also FIG. 8).
01-05-2019
10
The terminal portion 14a and the terminal portion 14b are provided at substantially the center
portion of the frame 6 and at opposing positions, and one end sides of the wires 15a and 15b are
connected to the terminal portions 14a and 14b via connectors or the like. ing. On the other
hand, the other ends of the wires 15a and 15b are connected to the wires on the output side of
the amplifier (not shown) via connectors or the like at predetermined positions of the third
portion 51c in the second housing 51. . The wires 15a and 15b are configured to have a pair of
plus and minus wires, respectively. As a result, signals and power for two channels are input to
the voice coil 8 from the amplifier side via the wires 15a and 15b, the terminal portions 14a and
14b, and the two plus and minus lead wires. In the following, “wiring 15” is simply referred to
as “wiring 15 a” and “wiring 15 b”, and “terminal 14” if “terminal 14 a” and
“terminal 14 b” are not particularly distinguished. write.
[0038]
The damper 9 has an annular shape, and the damper 9 is formed with a plurality of concentric
wave shapes (corrugations). The inner peripheral edge portion of the damper 9 is attached in the
vicinity of the upper end portion of the outer peripheral wall of the voice coil bobbin 7, while the
outer peripheral edge portion of the damper 9 is attached at a position corresponding to a
substantially central portion of the frame 1.
[0039]
The diaphragm 10 has a cone shape. The inner peripheral edge portion of the diaphragm 10 is
attached to the upper end portion of the outer peripheral wall of the voice coil bobbin 7.
[0040]
The edge 11 has an annular shape. The inner peripheral edge of the edge 11 is attached to the
outer peripheral edge of the diaphragm 10, while the outer peripheral edge of the edge 11 is
attached to the upper end of the frame 1.
[0041]
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11
The cap 12 has a dome shape and is provided at a position where the upper end of the voice coil
bobbin 7 is closed. The cap 12 has a function of preventing dust, moisture, and the like from
intruding into the inside of the speaker unit 80.
[0042]
As other members, in addition to the above-mentioned terminal part 14 and wiring 15, buffer
member 13 is mentioned. The buffer member 13 has a rod-like shape originally, and is attached
to the upper surface of the outer peripheral edge of the edge 11 in a state of being deformed into
a circular shape. As the buffer member 13, for example, a member having elasticity such as
sponge or urethane is suitable.
[0043]
In the speaker unit 80 having such a configuration, a signal or power output from the amplifier
side is input to the voice coil 8 through each wire 15, each terminal portion 14 and two negative
and positive lead wires. . As a result, a driving force is generated in the voice coil 8 in the
magnetic gap 17 to vibrate the diaphragm 10 and the like in the direction of the central axis L1
of the speaker unit 80. Thus, the speaker unit 80 emits sound waves in the direction of the arrow
Y1 on the front side of the diaphragm 10 and in the direction of the arrow Y2 on the back side of
the diaphragm 10.
[0044]
The speaker unit 80 described above is housed in the speaker box 55 including the first housing
50 and the second housing 51. Thus, the speaker device 100 is configured.
[0045]
Specifically, as particularly shown in FIG. 4, the speaker 13 as an element of the speaker unit 80
and the bottom 51 ab of the first portion 51 a of the second housing 51 are in contact with each
other, and The speaker unit 80 is accommodated and fixed in the first portion 51 a such that the
01-05-2019
12
yoke 1 which is an element of the unit 80 and the upper wall 50 a of the first housing 50 are in
contact with each other. Therefore, the front surface side of the diaphragm 10 which is an
element of the speaker unit 80 is disposed on the side facing the grille 51 ab of the second
housing 51. Further, as shown in FIGS. 6 and 9 etc., the first case 50 is an element of the first
case 50, and is an element of the plurality of attachment parts 50d and the second case 51. It is
attached to the 2nd case 51 in the state where multiple attachment parts 51d fitted. Thus, the
speaker device 100 is configured.
[0046]
In the speaker device 100, when the speaker unit 80 is driven, a sound wave emitted from the
front side of the diaphragm 10 is emitted in the direction of the arrow Y1 through the grill 51ac,
and also emitted from the back side of the diaphragm 10 The generated sound waves are emitted
in the direction of arrow Y3 through the space between the first housing 50 and the second
housing 51 and the bass reflex port 50c.
[0047]
(Method of Attaching Speaker Device to Vehicle) Next, with reference to FIG. 7 and the like, a
method of attaching the speaker device 100 to a predetermined position in the luggage
compartment 300b of the wagon-type vehicle 300 will be described.
[0048]
As shown in FIG. 7, a tire house portion 300c as a structure of the wagon type vehicle 300 is
formed below the floor surface 300e having a function of placing a load in the luggage
compartment 300b.
The tire house portion 300 c has a space 300 d for accommodating the spare tire 201 including
the wheel 202.
The spare tire 201 is placed in the space 300 d, and the speaker device 100 is disposed above
the spare tire 201 and in the space 300 d with a predetermined gap 250. Thus, the speaker
device 100 can be mounted on the wagon-type vehicle 300 without impairing the necessary
space in the passenger compartment 300a. In addition, the speaker device 100 is fixed to the tire
house portion 300 c through the fixing screw 60 and the hinge 61 provided in the first housing
50. Therefore, by removing the fixing screw 60 and lifting the fixing screw 60 side of the speaker
01-05-2019
13
device 100 to rotate the speaker device 100 about the hinge 61 to expose the spare tire 201, the
spare tire 201 can be a wagon-type vehicle 300. Can be taken out of the
[0049]
In such a state, the sound emitting portion or the like faces the spare tire 201 with a certain gap
250. Specifically, the first portion 51 a of the second housing 51 is accommodated inside the
wheel 202 and is opposed to the wheel 202 with a predetermined gap 250. Further, the second
portion 51 b of the second housing 51 is opposed to the side surface portion 201 a of the spare
tire 201 formed in a curved shape with a certain gap 250. The third portion 51c of the second
housing 51, the side wall of the second housing 51, and the side wall 50b of the first housing 50
face the tire house 300c with a gap 250 therebetween. Further, a gap 250 between the first
portion 51a and the wheel 202, a gap 250 between the second portion 51b and the side surface
portion 201a of the spare tire 201, and a gap 250 between the third portion 51c and the tire
house portion 300c. And the space 250 between the side wall of the second housing 51 and the
side wall 50b of the first housing 50 and the tire house portion 300c are mutually connected,
and the space 250 is a speaker unit as described later. It functions as an acoustic passage for
guiding the sound waves emitted from 80 into the passenger compartment 300a.
[0050]
That is, in the speaker device 100, when the speaker unit 80 is driven, as shown in FIGS. 5, 6 and
7, the sound wave radiated from the front side of the diaphragm 10 passes through the grille
51ac of the second housing 51. Sound waves radiated from the back side of the diaphragm 10 in
the direction of the arrow Y1 are emitted in the direction of the arrow Y3 through the bass reflex
port 50c and the like.
[0051]
Then, as shown in FIG. 1, FIG. 6, and FIG. 7 etc., the sound wave radiated in the direction of the
arrow Y1 is an arrow in the figure between the space 250 between the first portion 51ab of the
second casing 51 and the wheel 202 Travel in the direction of the arrow in the figure between
the second portion 51b of the second housing 51 and the side surface portion 201a of the spare
tire 201, and then the third housing 51 of the second housing 51. The space 250 between the
portion 51c and the tire house portion 300c travels in the direction of the arrow in the figure,
and then the side wall of the second housing 51 and the side wall 50b of the first housing 50 and
the tire house portion 300c The air gap 250 travels in the direction of the arrow in the figure,
01-05-2019
14
and is further emitted into the passenger compartment 300a where the passenger is present as
shown in the direction of the arrow Y4.
Although not shown, the sound wave radiated in the direction of the arrow Y3 through the bass
reflex port 50c also travels through the above-mentioned air gap 250 and is then radiated into
the passenger compartment 300a.
[0052]
[Mounting Structure of Wiring] Next, referring to FIGS. 8 to 11, the mounting structure of the
wiring, which is a feature of the present invention, will be described.
[0053]
FIG. 8 is a perspective view showing an inner portion of the second housing 51 accommodating
the speaker unit 80. As shown in FIG.
FIG. 9 is a perspective view when the speaker device 100 is observed from the front side, and a
transparent view showing an inner part of the second housing 51 in a transparent manner. FIG.
10 shows a cross-sectional view along the cutting line B-B 'in FIG. FIG. 11 shows a partial crosssectional view when a portion of the broken line area E5 in FIG. 10 is observed from the direction
of the arrow Y15.
[0054]
The second housing 51 has a plurality of projecting ribs 51e on the inner surface (bottom
surface) in addition to the above-described elements. The ribs 51e are spaced apart from each
other on the inner surface of the second housing 51, specifically, on the outer peripheral edge of
the first portion 51a, and on the inner surfaces of the second portion 51b and the third portion
51c. It is formed. Each rib 51 e has a function of fixing each wiring 15 connected to each
terminal portion 14 of the speaker unit 80. That is, as shown in an enlarged manner in the
broken line area in FIG. 8, a recess 51 f is formed on the upper surface side of each rib 51 e, and
each wiring 15 is disposed in the recess 51 f. Further, the bottom surface 51 g of each recess 51
f is set to have a height d 30 higher than that on the inner surface (bottom surface) of the second
casing 51. The height d30 is set to a height such that the respective wires 15 do not collide with
01-05-2019
15
the first casing 50 and the second casing 51 when the speaker device 100 is driven, according to
various aspects of the speaker device 100. preferable.
[0055]
Among the plurality of wires 15, the wire 15a is pulled from the terminal portion 14a to the
fixing portion 51h provided near the corner position on the inner surface of the third portion 51c
via the first portion 51a and the second portion 51b. It is rotated and fixed in the recess 51 f of
each rib 51 e provided on the inner surface of the second portion 51 b and the third portion 51
c. On the other hand, the wiring 15b is drawn from the terminal portion 14b along the outer
peripheral edge of the first portion 51a to the vicinity of the outer peripheral edge of the first
portion 51a in the vicinity of the terminal portion 14a. Each rib 51e is routed through a portion
51b to a fixed portion 51h provided on the inner surface of the third portion 51c, and provided
on the inner surfaces of the first portion 51a, the second portion 51b, and the third portion 51c.
It is being fixed in the recessed part 51f of.
[0056]
Further, in addition to the above-described elements, the speaker device 100 has a rod-like
cushion member 150 made of a member having an elastic function such as sponge or urethane.
An adhesive is applied to one surface of the cushion member 150, or a double-sided tape is
attached. The cushion member 150 is fixed to the upper surface of each rib 51 e via the adhesive
surface so as to cover the upper surface side of each wire 15 after fixing each wire 15 in the
recess 51 f of each rib 51 e. Thus, the wires 15 are fixed in a state of being sandwiched by the
side wall and the bottom surface 51 g of each recess 51 f and the cushion member 150.
However, the wiring 15a located between the outer peripheral edge of the first portion 51a and
the terminal portion 14a, and the wiring 15b located between the outer peripheral edge of the
first portion 51a and the terminal portion 14b are respectively the first It exists in the space
above the portion 51 a and is not covered by the cushion member 150.
[0057]
In addition to the above-described elements, the first housing 50 has a pressing rib 50f formed in
a mesh or grid shape. The pressing rib 50 f is formed to protrude from the inner surface of the
first housing 50. The pressing rib 50 f functions so as to press the cushion member 150 to the
01-05-2019
16
side of each rib 51 e and the side of each wire 15 in a state where the first case 50 is attached to
the second case 51. Thereby, the cushion member 150 can be prevented from rising to the first
housing 50 side. Further, in order to maximize such a function, the pressing rib 50f corresponds
to each rib 51e via at least the cushion member 150 in a state where the first case 50 is attached
to the second case 51. Preferably, it is formed in the following position. FIGS. 9 to 11 show that
the pressing rib 50f presses the cushion member 150 toward the respective ribs 51e.
[0058]
Next, with reference to FIG. 8 to FIG. 11 and the like, a method of attaching the wires 15 and the
like will be described.
[0059]
First, the speaker unit 80 is accommodated and fixed in the first portion 51 a of the second
housing 51.
Then, while fixing each wiring 15 connected to each terminal 14 of the speaker unit 80 in the
recess 51 f of each rib 51 e provided on the inner surface of the second housing 51, each wiring
15 is fixed. The respective terminal portions 14 are drawn to the fixing portion 51 h provided on
the inner surface of the second casing 51 described above. Next, the cushion member 150 is
deformed to a shape as shown in FIG. 8, and the cushion member 150 is attached to the upper
surface of each rib 51 e while making the bonding surface of the cushion member 150 face each
rib 51 e and each wire 15. As a result, each wire 15 is fixed in a state of being sandwiched by the
side wall of the recess 51 f of each rib 51 e and the bottom surface 51 g and the cushion
member 150, and the upper surface side of each wire 15 is covered by the cushion member 150
. Next, the first housing 50 is attached to the second housing by fitting the mounting portions 50
d of the first housing 50 to the mounting portions 51 d of the second housing 51. Thereby, the
cushion member 150 is pressed to the second housing 51 side by the mesh-like or lattice-like
pressing rib 50 f provided on the inner surface of the first housing 50.
[0060]
Next, specific effects and advantages of the present invention will be described in comparison
with the comparative example.
[0061]
01-05-2019
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FIG. 12 shows a wiring attachment structure according to a comparative example.
In the description of the comparative example, the same components as those of the present
invention are denoted by the same reference numerals, and the description thereof is omitted or
simplified.
[0062]
The comparative example has a housing 170 corresponding to the second housing 51 of the
present invention, and a plurality of projecting ribs 170e are provided at appropriate positions
on the inner surface (bottom surface) 170a of the housing 170. Is provided. Each rib 170e has a
recess 170f, and each wire 15 is fixed in each recess 170f. In particular, in the comparative
example, the bottom surface 170g of each recess on which the wires 15 are placed and the inner
surface 170a of the housing 170 are located on the same plane. Further, an adhesive 180 is
applied on each wiring 15 fixed in the recess 170f of each rib 170e for reinforcement, and each
wiring 15 is fixed to each rib 170f.
[0063]
The comparative example having such a wiring structure has the following problems.
[0064]
In the comparative example, each wire 15 is fixed to each rib 170 e using an adhesive 180.
Therefore, in the assembly process of the speaker device, it is necessary to provide a waiting time
for drying the adhesive 180, and there is a problem that the assembly time of the speaker device
is increased accordingly. Further, in the comparative example, since the bottom surface 170g of
each recess 170f and the inner surface 170a of the housing 170 are located on the same surface,
the application state of the adhesive 180 to each wire 15 fixed to each rib 170e In the case
where the speaker device is driven, the wires 15 rise from the bottom surface 170g of the ribs
170e and the wires 15 collide with the inner surface 170a of the housing 170, etc. There is a
problem that the abnormal sound occurs and the sound quality is degraded.
01-05-2019
18
[0065]
On the other hand, in the present invention, on the inner surface (bottom surface) of the second
housing 51, protruding ribs 51e including concave portions 51f for fixing the respective wirings
15 are provided at regular intervals. The bottom surface 51g of each recess 51f on which the
wires 15 are placed is set to a height d30 higher than that on the inner surface (bottom surface)
of the second housing 51. Further, each wire 15 is fixed to each recess 51 f. The upper surface of
each wire 15 opposed to the first housing 50 is covered by a cushion member 150 with an
adhesive element such as an adhesive, and the cushion member 150 is attached to the upper
surface of each rib 51 f. Therefore, each wiring 15 is fixed at the position of each rib 51e in a
state of being sandwiched by the side wall and the bottom surface 51g of the recess 51f and the
cushion member 150. Furthermore, in the state where the first case 50 is attached to the second
case 51, the cushion member 150 is provided by the mesh-like or grid-like pressing rib 50f
provided on the inner surface of the first case 50. Each rib 51e is held down.
[0066]
In the present invention having such a wiring structure, the wirings 15 are fixed by the ribs 51 e
in a state of floating by a predetermined height d 30 from the inner surface (bottom surface) of
the second housing 51. Thereby, when the speaker device 100 is driven, the movement of the
wires 15 to the second housing 51 side is restricted, and the collision between the second
housing 51 and the wires 15 can be prevented.
[0067]
Further, the cushion member 150 is attached on each rib 51 f via the adhesive surface. Thereby,
when the speaker device 100 is driven, the wires 15 can be prevented from being separated from
the ribs 51 f.
[0068]
Further, the upper surface side of each wire 15 is covered by the cushion member 150, and in
01-05-2019
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the state where the first case 50 is attached to the second case 51, the cushion member 150 is
the first case It is pressed down to each rib 51 e side by the mesh shaped or grid shaped pressing
rib 50 f provided on the inner surface of 50. Thereby, when the speaker device 100 is driven, the
movement of the wires 15 toward the first housing 50 is restricted, and the collision between the
first housing 51 and the wires 15 can be prevented.
[0069]
As described above, according to the wiring structure of the present invention, the movement of
each wiring 15 toward the first housing 50 and the second housing 51 is restricted when the
speaker device 100 is driven, and the first housing A collision between the body 50 and the
second casing 51 and the wires 15 can be reliably prevented. Therefore, it is possible to prevent
the generation of abnormal noise such as chattering noise (flickering noise), and to prevent the
sound quality from being degraded.
[0070]
Further, in the present invention, as in the comparative example, after fixing each wire 15 to each
rib 51 f, there is no process for applying an adhesive on each wire 15 for reinforcement.
Therefore, there is no need to provide a waiting time for drying the adhesive in the assembly
process of the speaker device 100, and accordingly, the attachment time of the wiring 15 etc. is
shortened compared to the comparative example, and thus the speaker device 100 is assembled.
The time can be shortened.
[0071]
[Modification] In the above embodiment, the pressing rib 50f provided on the inner surface of
the first housing 50 is formed in a mesh shape or a lattice shape, and the first housing 50 is
formed as the second housing 51. In a state where the cushion rib 150f is attached, each portion
of the cushion member 150 is pressed down by each portion of the pressing rib 50f. However, in
the present invention, in order to hold down the cushion member 150 more stably, the pressing
rib 50 f is formed in a flat plate shape, for example, and the first casing 50 is attached to the
second casing 51. In such a case, the pressing rib 150 may be configured to press the entire
cushion member 150.
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[0072]
Further, in the above embodiment, the speaker device 100 is applied to the wagon type vehicle
300, the speaker device 100 is installed in the luggage compartment 300b, and the sound wave
is directly emitted into the vehicle compartment 300a through the speaker device 100. So
configured.
[0073]
Not limited to this, in the present invention, as shown in FIG. 13, it is also possible to apply the
speaker device 100 to the sedan type vehicle 301.
In this case, the speaker device 100 is installed in the trunk room 301b, and a duct 300f is
provided between the speaker device 100 and the passenger compartment 300a. Therefore, the
sound wave emitted from the speaker device 100 is emitted into the passenger compartment
300a through the duct 300f.
[0074]
BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic plan view which shows the state which
mounted the speaker apparatus based on the Example of this invention in the predetermined
position in the trunk room of a vehicle. It is a perspective view when the speaker apparatus of a
present Example is observed from the front side. It is a perspective view when the speaker
apparatus of a present Example is observed from the back side. The fragmentary sectional view
etc. which cut the part of the speaker apparatus corresponding to FIG. 2 are shown. It is a half
sectional view when the speaker unit of a present Example is cut | disconnected by the plane
which passes along the central axis. The perspective view etc. which show the internal structure
of the speaker apparatus of a present Example are shown. FIG. 2 is a cross-sectional view
including the speaker device along a cutting line A-A ′ in FIG. 1. It is a perspective view which
shows the structure of the inner part of the 2nd housing | casing of a present Example. The
perspective view etc. of a pressing rib etc. which were provided in the inner part of the 1st
housing | casing of a present Example are shown. FIG. 10 shows a cross-sectional view along a
cutting line B-B ′ in FIG. 9. FIG. 2 shows a partial cross-sectional view of a wiring structure
according to the present invention. The fragmentary sectional view of the wiring structure
concerning a comparative example is shown. It is a schematic plan view which shows the state
which mounted the speaker apparatus which concerns on a present Example in the
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predetermined position in the trunk room of a sedan type vehicle.
Explanation of sign
[0075]
14a, 14b Terminal portion 15a, 15b Wiring 20 Magnetic circuit 21 Vibration system 50 First
case 50f Retaining rib 51 Second case 51e Rib 51f Recess 51g Bottom surface 55 Speaker box
80 Speaker unit 100 Speaker device 150 Cushion member
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