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JPH09298787

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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
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DESCRIPTION JPH09298787
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker system for television, and in particular, it amplifies the bass range radiated to the rear as
well as the middle and high range radiated to the front of the speaker to improve the definition
of sound. The present invention relates to a speaker system that can be further improved.
[0002]
2. Description of the Related Art In general, a cone speaker is most frequently used as a speaker
for converting an electric signal to a sound wave signal and radiating it into free space, but such
a cone speaker is used between the central pillar and the yoke. When a strong cylindrical
magnetic field is generated from the positioned magnet, a force is applied to the voice coil
installed in the magnetic field as the current of the signal flows, and the force is a conical shape
made of paper material The vibrator's diaphragm is vibrated to emit sound waves.
[0003]
Conventionally, as shown in FIG. 1, in a television equipped with such a speaker, a pair of
speakers 3 is fixedly provided toward the front on both sides behind the cabinet 2 in which the
cathode ray tube 1 is mounted. In the inside of the cabinet 2, a sound wave passage 4 having
openings 4a for guiding the sound wave emitted from the speaker 3 to both sides of the cathode
ray tube 1 is formed.
[0004]
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1
In the conventional example shown in FIG. 2, the front portion 2a of the speaker box is provided
on both sides of the cabinet 2, and the both sides of the back cover 5 coupled to the back side of
the cabinet 2 correspond to the front portion 2a of the speaker box The back surface 5a of the
speaker box is formed, and the speaker 3 is mounted in the front surface 2a and the back surface
5a of the speaker box.
[0005]
However, such prior art techniques use the sound waves radiated from the speakers passing
through the sound wave passage installed inside the cabinet and the speakers in the front and
back of the speaker box. Not only is the sound wave radiated not only sufficiently amplified by
the phenomenon of interference, but the sharpness of the sound is significantly reduced, and in
particular the problem is that the amplification of the bass is faint and delicate sounds can not be
obtained. was there.
[0006]
The object of the present invention is to solve not only the sound waves emitted from the
speakers mounted in the cabinet to the front surface but also a part of the sound waves emitted
backward, in order to solve the problems of the prior art as described above. It is an object of the
present invention to provide a speaker system for television which can increase the efficiency of
amplification of a bass sound and obtain clearer and harmonized sound by collecting sound and
amplifying and emitting it.
[0007]
In order to achieve the above object, there is provided a support member having a partition
mounted on both sides of a cabinet to achieve the above object, a speaker having a frame fixed
within the partition of the support member, and It is characterized by comprising an
amplification horn for collecting and amplifying a part of the sound waves radiated to the frame,
and a lid fastened to the back side of the support member.
[0008]
The present invention will be described in more detail with reference to the accompanying
drawings.
FIG. 3 is an exploded perspective view of a speaker system for television according to the present
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2
invention, FIG. 4 is a partial plan view of a speaker system for television according to the present
invention, and FIG. FIG. 6 is a schematic view of a television to which the present invention is
applied.
[0009]
In the figure, a tweeter 12 is fastened and fixed on the front side to support members 10
mounted on both sides of the cabinet 2, and a speaker 14 for middle / low tone is mounted on a
partition wall 10a formed on the back side A lid 16 is fastened and fixed to the back side of the
support member 10.
At one side of the support member 10, a curved portion 10b having a curvature substantially the
same as the curvature of the tip of the cathode ray tube 1 mounted in the cabinet 2 is formed.
[0010]
Then, on the back side of the speaker 14, an amplification unit 20b having a plurality of sound
collecting units 20a whose one end is located in the opening 18a of the frame 18 and an
amplification unit 20b for amplifying the sound wave collected from the sound collecting unit
20a. The horn 20 is fixed.
The amplification horn 20 collects sound waves radiated from the multiple sound collection units
20a formed on one side to the back side of the speaker 14 and amplifies the sound waves by the
amplification unit 20b, In the sound wave, in particular the bass is amplified effectively so that a
harmonious sound can be obtained.
[0011]
When the sum of the diameters of the plurality of sound collecting units 20a formed in a large
number is formed to be the same as the minimum diameter of the amplifying unit 20b, the
interference of the collected sound waves can be prevented. Therefore, it is desirable that the
amplification unit 20b does not amplify sound waves unless the diameter is geometrically
increased gradually toward the tip.
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Also, the sound collecting unit 20a may be formed of one, two, three or the like so that a part of
the sound wave radiated to the back side of the speaker 14 can be collected. If the number of the
opening holes 18a of the frame 18 provided is four, the number of the sound collecting portions
20a is preferably two, and if the number of the opening holes 18a is six, the three are preferable.
[0012]
Therefore, the number of the sound collecting units 20a is determined according to the number
of the opening holes 18a, but preferably 1/2 of the number of the opening holes 18a.
The number of the sound collecting units 20a is not limited to one half of the number of the
opening holes 18a, as long as the sound collecting unit 20a can collect sound waves radiated to a
part of the opening holes 18a.
[0013]
Further, it goes without saying that the number of the sound collecting portions 20a and the
number of the opening holes 18a can be equal to each other so that the sound collecting portion
20a can collect the sound waves radiated from all the opening holes 18a. .
Meanwhile, the radiation horn 22 for emitting an amplified sound wave is coupled to the tip of
the amplification horn 20.
[0014]
Further, a sound absorbing material 24 is attached to the inside of the lid 16 for absorbing a part
of the sound wave not collected by the amplification horn 20 to minimize the generation of noise,
and the roughly central portion of the partition wall 10a. An echo port 26 is formed in the
housing for emitting sound waves not absorbed by the sound absorbing material 24. When the
support member 10 is attached to the cabinet 2 on both sides, a vibration-proof tool 28 is
inserted and fixed to prevent vibration caused by the sound wave emitted from the speaker 14.
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[0015]
In the speaker system for television according to the present invention, when the cone paper in
the speaker 14 vibrates to generate a sound wave by the strong cylindrical magnetic field
generated from the magnet, the sound wave is the speaker. By being emitted to the front side of
the television through the T. 14 and tweeter 12, high and medium / low sound waves can be
obtained.
[0016]
At this time, a part of the sound wave emitted to the back side of the speaker 14 is collected and
amplified through the amplification horn 20 and then emitted to the front side of the television.
That is, a part of the sound waves radiated through the aperture 18a of the frame 18 fixed on the
back side of the speaker 14 is a large number of the sound collecting portions formed at the tip
of the amplification horn 20. After being collected through 20a, it is amplified by the
amplification unit 20b and emitted through the radiation horn 22 to effectively amplify bass, in
particular, ultra-bass, and of course, treble and mid / bass. It becomes possible to obtain a more
harmonized sound by the super bass.
[0017]
Then, the sound wave not collected by the amplification horn 20 in the sound wave radiated to
the back side of the speaker 14 is emitted through the opening hole 18 a of the frame 18, and
then part of the sound wave is released in the lid 16. The sound is absorbed into the sound
absorbing material 24 to remove noise, and the remaining sound wave is radiated to the front
side of the television through the echo port 26 again.
[0018]
At this time, as the tweeter 12, the speaker 14 and the radiation horn 22 are fixed at different
positions from each other, the interference phenomenon due to the radiation of the sound wave
can be minimized to obtain a more clear and harmonized sound.
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Then, the support member 10 is fixed by interposing the anti-vibration tool 28 in the cabinet 2,
thereby minimizing the occurrence of vibrations such as shaking of the support member 10 due
to sound waves during operation of the speaker 14. In particular, the curved portion 10b having
substantially the same curvature as that of the tip of the cathode ray tube 1 is formed on one side
of the support member 10, thereby facilitating assembly as well as in a narrow mounting space.
It becomes attachable.
[0019]
Therefore, as described above, according to the present invention, only a part of the sound wave
emitted from the rear, as well as the high and medium / low tones emitted to the front side of the
speaker, is collected and amplified. There are various effects such as being able to minimize the
interference phenomenon of the sound wave in the amplification horn and to increase the
efficiency of amplification of the super bass, in particular, and to obtain a sharp and harmonious
delicate sound.
[0020]
In this embodiment, the support member in which the speaker is mounted and the amplification
horn are provided on the inside of the television cabinet, but the invention is not limited thereto.
For example, the television cabinet may protrude on both sides or up and down. The abovedescribed effect can be obtained even if it is set, and this can be changed within the technical
idea of the claims by those who have ordinary knowledge in the technical field to which the
present invention belongs.
[0021]
Brief description of the drawings
[0022]
1 is a cross-sectional view showing an example of a conventional speaker system for television.
[0023]
2 is an exploded perspective view showing another example of a conventional speaker system for
television.
[0024]
3 is an exploded perspective view showing a speaker system for a television according to an
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embodiment of the present invention.
[0025]
4 is a plan view of an essential part of a speaker system for television according to the present
invention.
[0026]
5 is a combined sectional view of a portion of a speaker system for television according to the
present invention.
[0027]
6 is a schematic diagram showing a television to which the present invention is applied.
[0028]
Explanation of sign
[0029]
DESCRIPTION OF SYMBOLS 1 cathode ray tube 2 cabinet 10 support member 10a partition 10b
curved part 12 tweeter 14 speaker 16 lid 18 frame 18a opening hole 20 amplification horn 20a
sound collecting part 20b amplification part 22 radiation horn 24 sound absorbing material 26
echo port 28 vibration isolator
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