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DESCRIPTION JP2017092937

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DESCRIPTION JP2017092937
Abstract: A long-stroke loudspeaker is bi-directionally sounding that saves space and reduces
costs. A casing, a first vibration system (12) connected to the casing, and a second vibration
system (13) connected to the casing. The accommodation space 110 includes a first acoustic
cavity 114 and a second acoustic cavity 115 in communication with each other. A magnetic
circuit system 14 is incorporated in at least one of the first acoustic cavity and the second
acoustic cavity. Driving the second vibration system to vibrate so that the volume of air in the
second vibration system of the second acoustic cavity changes when the vibration of the first
vibration system of the first acoustic cavity sounds , Make the second acoustic cavity sound.
[Selected figure] Figure 3
Long stroke type speaker
[0001]
The present invention relates to the field of acoustic devices, and in particular to long stroke
speakers.
[0002]
In recent years, with the evolution of technology, especially with the rapid evolution of mobile
communication technology, more and more mobile communication devices such as smartphones,
tablet PCs, laptops, multimedia players etc. have appeared in people's daily lives, It has become
an essential item for people.
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Of these mobile communication devices, the audio playback device is an integral part of it, and
the high quality of the voice directly affects the user experience when using these mobile
electronic devices .
[0003]
As a long stroke speaker, as an audio player, the design of its configuration directly affects the
quality of the audio playback. Long-stroke speakers in the prior art can only sound in a single
direction, so they need to have a constant volume cavity to meet performance requirements.
[0004]
When using a long stroke type speaker, if it is necessary to simultaneously pronounce in another
direction, it is necessary to separately mount another normal speaker, and a certain volume of
back cavity is required. Occupied space is large, increasing costs.
[0005]
SUMMARY OF THE INVENTION In order to solve the above technical problems, the present
invention provides a bi-directionally sounding long-stroke loudspeaker which saves space and
reduces costs.
[0006]
A long-stroke speaker provided by the present invention includes a casing having a housing
space, a first vibration system connected to the casing, and a second vibration system connected
to the casing, the housing space being A magnetic circuit system is included in at least one of the
first acoustic cavity and the second acoustic cavity, the first acoustic cavity and the second
acoustic cavity communicating with each other; The first vibration system has a first vibration
direction, the second vibration system has a second vibration direction, and the first vibration
direction intersects the second vibration direction. Do.
[0007]
In one preferred embodiment of a long-stroke loudspeaker provided by the present invention, the
casing includes a first side wall, a second side wall disposed opposite to the first side wall, and
the first side wall. And a plurality of third side walls connected to the side wall and the second
side wall, wherein the first side wall, the second side wall, and the third side wall surround
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together to form the accommodation space The third side wall is provided with a first
accommodating portion for accommodating the first vibration system, and the first side wall or
the second side wall is provided with the second vibration system. A second receptacle is
provided for receiving.
[0008]
In one preferred embodiment of the long stroke speaker provided by the present invention, the
third side wall is vertically connected to the first side wall and the second side wall, and the first
vibration direction is It intersects perpendicularly with the second vibration direction.
[0009]
In one preferred embodiment of the long stroke speaker provided by the present invention, the
magnetic circuit system is provided in the first acoustic cavity, and the magnetic circuit system is
provided with the first side wall and the first side wall, respectively. A pair of magnetic steel
modules connected to a second side wall, the first vibration system comprising a first diaphragm,
a coil provided between the pair of magnetic steel modules, and the first vibration system And a
holder for supporting the coil.
[0010]
In one preferred embodiment of the long stroke speaker provided by the present invention, the
holder is housed in the first housing portion, and a first support portion connected to the third
side wall A second support portion extending from the first support portion along the first
vibration direction, and a partition portion connected to the second support portion, the first
diaphragm being The coil is connected to the first support, the coil is provided to the second
support, and both ends of the partition are respectively connected to the first side wall and the
second side wall. The storage space is divided into the first acoustic cavity and the second
acoustic cavity in communication with each other.
[0011]
In one preferred embodiment of the long stroke speaker provided by the present invention, the
magnetic steel module includes a pole plate and magnetic steel connected to the pole plate, the
first side wall and the second side wall. A through hole is formed in the side wall of the housing
for receiving the pole plate.
[0012]
In one preferred embodiment of the long stroke speaker provided by the present invention, the
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magnetic circuit system is provided in the second acoustic cavity, and the magnetic circuit
system is fixed to the second side wall. A second housing portion is provided on the first side
wall, and the second vibration system is provided in a second housing portion, the second
housing portion comprising a steel and a pole core connected to the magnetic steel; And a voice
coil connected to the second diaphragm.
[0013]
In one preferred embodiment of the long stroke speaker provided by the present invention, the
second side wall is at least partially made of a magnetically conductive material, and the
magnetic steel is made of the magnetically conductive material. It is connected to the side wall.
[0014]
In one preferred embodiment of the long stroke speaker provided by the present invention, the
magnetic circuit system comprises: a first magnetic circuit system provided in the first acoustic
cavity; and the second acoustic cavity. And a second magnetic circuit system provided in the
second magnetic circuit, the first magnetic circuit system including a pair of magnetic steel
modules respectively connected to the first side wall and the second side wall; The magnetic
circuit system includes a magnetic steel provided on the second side wall and a pole core
connected to the magnetic steel, and the first vibration system includes a first diaphragm and a
pair of the magnetic members. A coil provided between the steel modules and a holder for
supporting the first diaphragm and the coil, wherein the second vibration system is housed in the
second housing portion It includes a second diaphragm, a voice coil connected to the second
diaphragm.
[0015]
Compared to the prior art, the long-stroke loudspeaker provided by the present invention
comprises air within the second vibration system of the second acoustic cavity when the first
vibration system of the first acoustic cavity sounds by vibration. The second vibration system is
driven to vibrate so that the second acoustic cavity is pronounced as the volume of the
That is, one magnetic circuit system can simultaneously realize bi-directional sounding of the
first acoustic cavity and the second acoustic cavity, and there is no need to add another normal
speaker separately. Can save you a lot of money and reduce costs.
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[0016]
1 is an exploded perspective view of one embodiment of a long stroke speaker provided by the
present invention. FIG.
It is a perspective view of the long stroke type | mold speaker shown in FIG.
It is the sectional view on the AA line of the long stroke type speaker shown in FIG.
FIG. 6 is a cross-sectional view of another embodiment of a long stroke speaker provided by the
present invention.
FIG. 7 is a cross-sectional view of yet another embodiment of the long stroke loudspeaker
provided by the present invention;
[0017]
Hereinafter, one of the embodiments of the present invention will be clearly and completely
described with reference to the drawings of the embodiments of the present invention.
Of course, the described embodiments are only some embodiments of the present invention and
not all.
Based on the embodiments of the present invention, all the other embodiments obtained are
included in the protection scope of the present invention unless a person skilled in the art
requires creative effort.
[0018]
1 to 3, FIG. 1 is an exploded view of an embodiment of a long stroke speaker provided by the
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present invention, and FIG. 2 is a perspective view of the long stroke speaker shown in FIG. FIG. 3
is a cross-sectional view of the long stroke speaker shown in FIG.
The long-stroke speaker 1 includes a casing 11 having a housing space 110, a first vibration
system 12 connected to the casing 11, a second vibration system 13 connected to the casing 11,
and a sounding ring 19. including.
The accommodation space 110 includes a first acoustic cavity 114 and a second acoustic cavity
115 in communication with each other.
The first vibration system 12 has a first vibration direction X, and the second vibration system
13 has a second vibration direction Y.
The first vibration direction X intersects the second vibration direction Y. A magnetic circuit
system 14 is embedded in at least one of the first acoustic cavity 114 and the second acoustic
cavity 115.
[0019]
The casing 11 has a first side wall 111, a second side wall 112 installed opposite to the first side
wall 111, and a plurality of third side walls connected to the first side wall 111 and the second
side wall 112. And the first side wall 111, the second side wall 112, and the third side wall 113
form together a housing space 110. A first accommodating portion 121 for accommodating the
first vibration system 12 is opened in the third side wall 113, and the second vibration is formed
in the first side wall 111 or the second side wall 112. A second housing 131 is provided for
housing the system 13.
[0020]
In the present embodiment, the third side wall 113 is vertically connected to the first side wall
111 and the second side wall 112. The first vibration direction X intersects the second vibration
direction Y perpendicularly.
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[0021]
Further, the magnetic circuit system 14 is provided in the first acoustic cavity 114, and the
magnetic circuit system 14 includes a pair of magnetic steel modules 141 connected to the first
side wall 111 and the second side wall 112 respectively.
[0022]
The first vibration system 12 includes a first diaphragm 122, a coil 123 provided between the
pair of magnetic steel modules 141, and a holder 124 for supporting the first diaphragm 122
and the coil 123. including.
[0023]
The holder 124 is housed in the first housing portion 121, and extends along the first vibration
direction X from the first support portion 1241 connected to the third side wall 113 and the first
support portion 1241. And a partition portion 1243 connected to the second support portion
1242.
The first diaphragm 122 is connected to the first support 1241.
The coil 123 is provided to the second support portion 1242. Both ends of the partition portion
1243 are connected to the first side wall 111 and the second side wall 112 respectively, whereby
the accommodation space 110 is connected to the first acoustic cavity 114 and the second
acoustic cavity 115 which communicate with each other. Partition.
[0024]
The magnetic steel module 141 includes a pole plate 1411 and a magnetic steel 1412 connected
to the pole plate 1411. Through holes 1413 for receiving the pole plate 1411 are opened in the
first side wall 111 and the second side wall 112.
[0025]
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The magnetic steel 1412 includes a first magnetic body portion 1414 and a second magnetic
body portion 1415. Each of the first magnetic body portion 1414 and the second magnetic body
portion 1415 includes a main magnetic steel and a sub magnetic steel provided so as to be
sandwiched between the main magnetic steels. Specifically, the first magnetic body portion 1414
includes two first main magnetic steels 14141 and one first sub magnetic steel 14142. The first
sub magnetic steel 14142 is provided so as to be sandwiched between the two first main
magnetic steels 14141. The second magnetic body portion 1415 includes two second main
magnetic steels 14151 and one second sub magnetic steel 14152. The second sub-magnetic steel
14152 is provided so as to be sandwiched between the two second main magnetic steels 14151.
[0026]
The second vibration system 13 includes a second diaphragm 132 and a hollow cover 133. The
second diaphragm 132 and the hollow cover 133 are provided side by side in the second
housing portion 131.
[0027]
Each of the first diaphragm 122 and the second diaphragm 132 includes a ridge and a flat
portion (not shown). The ridge portion is provided in a ring shape at the flat portion. The
buttocks can correspond to larger amplitudes. Furthermore, a first dome 161 affixed to the first
diaphragm 122 and a second dome 162 affixed to the second diaphragm 132 are also included.
[0028]
The sounding ring 19 is provided so as to surround the first diaphragm 122 to form a sounding
cavity of the first diaphragm 122 so that the long-stroke speaker 1 has a better sounding effect.
[0029]
Referring to FIG. 4, this FIG. 4 is a cross-sectional view of another embodiment of the long stroke
speaker provided by the present invention, and in the present embodiment, the magnetic circuit
system 24 is in the second acoustic cavity 215. Provided in
[0030]
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The magnetic circuit system 24 includes a magnetic steel 241 fixed to the second side wall 212
and a pole core 242 connected to the magnetic steel 241.
[0031]
The second accommodation portion 231 is provided on the first side wall 211.
The second vibration system 25 includes a second diaphragm 251 housed in the second housing
portion 231 and a voice coil 252 connected to the second diaphragm 251.
[0032]
The second side wall 212 is at least partially made of a magnetically conductive material.
The magnetic steel 241 is connected to the second side wall 212 made of a magnetic conductive
material.
[0033]
Referring to FIG. 5, this FIG. 5 is a cross-sectional view of yet another embodiment of the long
stroke loudspeaker provided by the present invention, wherein the magnetic circuit system 34 is
provided in the first acoustic cavity 314. And a second magnetic circuit system 342 provided in
the second acoustic cavity 315.
[0034]
The first magnetic circuit system 341 includes a pair of magnetic steel modules 3411 connected
to the first side wall 311 and the second side wall 312, respectively.
The second magnetic circuit system 342 includes a magnetic steel 3421 provided on the second
side wall 312 and a pole core 3422 connected to the magnetic steel 3421.
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The first vibration system 32 includes a first diaphragm 321, a coil 322 provided between a pair
of magnetic steel modules 3411, and a holder 323 for supporting the first diaphragm 321 and
the coil 322. Including. The second vibration system 33 includes a second diaphragm 331
housed in the second housing and a voice coil 332 connected to the second diaphragm 331.
[0035]
In the long-stroke speaker provided by the present invention, when the first vibration system of
the first acoustic cavity generates sounds by vibration, the volume of air in the second vibration
system of the second acoustic cavity changes. Thus, the second vibration system is driven to
vibrate, and the second acoustic cavity is realized to sound. That is, one magnetic circuit system
can simultaneously realize bi-directional sounding of the first acoustic cavity and the second
acoustic cavity, and there is no need to add another normal speaker separately. Can save you a
lot of money and reduce costs.
[0036]
What has been described above is only an embodiment of the present invention and does not
limit the scope of the present invention. All equivalent constructions or equivalent flow
transformations obtained on the basis of the description of the invention and the drawings, or
any direct or indirect application to other relevant technical fields, are all included in the claims
of the invention for the same reasons.
[0037]
DESCRIPTION OF SYMBOLS 1 long stroke type speaker 11 casing 110 accommodation space
111 1st side wall 112 2nd side wall 113 3rd side wall 114 1st acoustic cavity 115 2nd acoustic
cavity 12 1st vibration system 121 1st accommodating part 122 First diaphragm 123 Coil 124
Holder 1241 First support portion 1242 Second support portion 1243 Partition portion 13
Second vibration system 131 Second accommodation portion 132 Second diaphragm 133 Cover
14 Magnetic circuit system 141 Magnetism Steel module 1411 pole plate 1412 magnetic steel
1413 through hole 1414 first magnetic body portion 1415 second magnetic body portion
14141 first main magnetic steel 14142 first sub magnetic steel 14151 second main magnetic
steel 14152 second Sub-magnetic steel 161 first dome 162 second dome 9 sounding ring 211
first side wall 212 second side wall 215 second acoustic cavity 231 second accommodation
portion 24 magnetic circuit system 241 magnetic steel 242 pole core 25 second vibration
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system 251 second diaphragm 252 voice coil 311 First side wall 312 second side wall 314 first
acoustic cavity 315 second acoustic cavity 32 first vibration system 321 first diaphragm 322 coil
323 holder 33 second vibration system 331 second diaphragm 332 Voice coil 34 Magnetic
circuit system 341 First magnetic circuit system 342 Second magnetic circuit system 3411
Magnetic steel module 3421 Magnetic steel 3422 Pole core
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