JP2008182310

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DESCRIPTION JP2008182310
[Problem] The present invention provides a single-in-all diaphragm that matches physical voice
transmission characteristics. The present invention relates to a full-range single diaphragm that
matches physical voice transmission characteristics, and is a single diaphragm 2 structure
installed in a speaker 1, which is based on a known material of uniform material and structure of
the same strength. It is something that breaks the restriction. That is, the diaphragm 2 structure
is directed from the inner edge to the outer edge and used to change the structural strength of
the material to gradually reduce the strength from high strength to low strength, while in
between It is changing with a steady frequency range. Therefore, each different position and each
part structure of the single diaphragm 2 can sufficiently satisfy the requirements of the physical
voice transmission characteristics of high sound, medium sound and low frequency, and is most
ideal for the single diaphragm 2 Demonstrate the sound quality and characteristics of high,
medium and low tones. The idea is to eliminate the cost of complex voice distributor designs and
to avoid false noise and loss of efficiency, thus achieving the goal of improving efficiency,
reducing costs, and reproducing true original sound. [Selected figure] Figure 5
Whole range single diaphragm matched to physical voice transmission characteristics
[0001]
The full-range single-body diaphragm that conforms to the physical voice transmission
characteristics of the present invention relates to the single-body diaphragm structure in the
speaker, and in particular in the diaphragm structure, it is characterized by different material
strength at each position. ing. Therefore, we propose a "full-range single diaphragm that matches
the physical voice transmission characteristics" that meets the requirements of full-range voice
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transmission regarding the sound quality of high, medium, and low tones.
[0002]
With the advanced economic development of humanity, the quality of life has been improved,
and the demand for the quality of leisure time has become increasingly severe. In various leisure
activities, regardless of the television, the movie or the music appreciation, the increase in the
demand for watching and listening has resulted in the complete reliance on the research and
development of the products to be seen and the products to be "listened". With regard to visual
products in the vision part, the development of high resolution digital flat displays has
already progressed, and products of high resolution low emissivity also rapidly develop,
regardless of LCD TVs or plasma TVs. doing. If we look at the quality improvement and progress
of Hearing products, we can see that few manufacturers are promoting research and
development. In the search for the cause, the main cause is that the main axis of the auditory
product is the 'speaker', and the structural principle is simple and long used, so it is generally
regarded as no longer an improvement point At present, research and creation of auditory
products is mostly focused on the study of expansion circuits. However, the inventor thinks that
this kind of way to throw away the root and chase unnecessary is never right.
[0003]
Although the speaker structure includes a diaphragm, the existing diaphragms are made of a
paper diaphragm, a recent aluminum diaphragm, a plastic diaphragm, or any other material
made of high-tone, medium-tone, and bass. The sites where vibrations occur are all single
diaphragms of similar material, similar density and strength, and the defects are summarized
below. 1. Regarding the characteristics: As shown in FIG. 1, the range of the characteristic curve
is narrow, the curve is not flat, and the aliasing is large. Under the condition that the diaphragm
is of the same magnetic circuit design, the difference between top and bottom of aliasing is
always 10-15 dB, and the bandwidth is relatively narrow, around 20-25% Hz . If it is 10 KHz, it
actually only reaches 8 KHz. If it is 20 KHz it is actually only 10-13 KHz and starts to fall or
otherwise add a short ring design, add high cone (H-CONE), reduce oscillating mass, voice coil
structure and change of weight In addition, it is necessary to reduce the interval width of the
voice coil wire, to correct the form of the main body, and the like, which leads to an increase in
cost, generation of false sound that does not conform to temporary characteristics of acoustic
conditions, and the like. 2. Regarding sound quality: In the same diaphragm, it is impossible for
materials with uniformity to simultaneously emit appropriate tones of high, middle and low
tones. In the prior art, the uniform material, the diaphragm produced by the same structural
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strength is limited, which can be explained by the see-saw principle. If emphasis is placed on the
low range, the midtones will be lost and the sound will become unclear due to the turbidity. If the
emphasis is on the midrange, the bass will be lost, and the sound will be high and the sound will
not fit in the ear. Clearly this is a daunting way, and the industry has been unable to solve these
limitations for a long time. 3. About efficiency: The material, structure, and density in the same
diaphragm all match, so a single diaphragm can not express a timbre with a smooth frequency
width under various high, middle, and low range amplitudes. And, it is easy for the situation
where tone expression does not go smoothly. Therefore, the diaphragm is not efficient, and the
diaphragm can not be required to reach the boundary where the tone expression is the best. A
sound distributor is installed so that the existing sound does not cause the timbre expression of
treble, medium, and bass completely and without aliasing, but it combines separate treble
speakers, mid-tone speakers, and bass speakers. The voice distributor separates the high, middle,
and low tones of the music and corrects the characteristics and timbre, and then adds voices to
the high- and low-tone speakers corresponding to the characteristics. To obtain an appropriate
sound quality expression.
[0004]
Each tone color such as high tone, middle tone and low tone can be expressed by combining a
separate high tone speaker, medium tone speaker and low tone speaker using a voice distributor,
but it is modified, changed and transmitted using an electronic voice distributor. The voiced
sounds are not natural sounds but unnatural and expensive, and the world's sound technology
has resulted in limitations in its long history.
[0005]
The full-range single-piece diaphragm that conforms to the physical voice transmission
characteristics of the present invention is mainly intended to express the complete timbre and
sound quality of the high-tone, mid-tone, and low-tone range with a single-piece diaphragm.
The inventor should use a speaker and a hearing if it is possible to achieve a sound quality effect
such as high tone, middle tone, low tone, etc. completely expressed without aliasing under the
premise of using only a speaker without using a voice distributor. We believe that we will be able
to bring about a revolutionary revolution and development in our products. Because the
diaphragm occupies a very important position for the speaker to make sound, and the diaphragm
is an important factor in determining the sound characteristics and quality, research and
development of high quality diaphragms is very important. I have a great need. The inventor has
made an effort in testing and research on the structure and characteristics of the diaphragm, and
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has finally reached the development of the present invention. There is.
[0006]
In order to achieve the above-mentioned purpose, in the structure of the diaphragm, each
position has different characteristics of material strength, in particular, the diaphragm structure
is directed from the inner edge to the outer edge, and the strength of the material structure is
And changing the density from high intensity to gradually decrease gradually to low intensity,
and in the meanwhile, it is changed by giving a gradual smooth frequency width. Thus, different
positions and areas in the same diaphragm can fully meet the requirements of high frequency,
medium frequency and low frequency sound transmission characteristics, and a single
diaphragm is an ideal complete high tone, medium tone, It exhibits low-pitched tone, tone quality,
and voice transmission characteristics.
[0007]
According to the invention of claim 1, in the full-range single diaphragm that matches the
physical voice transmission characteristics, a speaker structure in which the diaphragm is
coupled includes a voice coil, a dustproof cap, and a coupling structure, Thereby, the diaphragm
adopts materials of various beating degrees at different positions, and the structural strength of
the material is changed in a smooth frequency width gradually from the one end edge to another
opposite end edge, and a high strength structure By gradually reducing to a low strength
structure from the above, it is made a single-range full-range diaphragm that matches the
physical voice transmission characteristics characterized by satisfying the requirement for voice
transmission in the full range. According to the invention of claim 2, in the full range single-piece
diaphragm conforming to the physical voice transmission characteristic of claim 1, the material
of the high strength structure has a high freeness and the material of the low strength structure
is a low It is a single-range diaphragm that matches the physical voice transmission
characteristics characterized by having a degree of beating. The invention according to claim 3 is
the full-range single-piece diaphragm conforming to the physical voice transmission
characteristic according to claim 1, wherein the diaphragm is integrally formed, and a highstrength fine fiber membrane is obtained by changing the structural strength of the material. The
body, medium-strength medium-fiber membrane body, low-strength coarse-fiber membrane body
is formed, and it is a full-range single-body diaphragm that conforms to the physical voice
transmission characteristics. According to the invention of claim 4, in the full range single-piece
diaphragm conforming to the physical voice transmission characteristic of claim 3, the high
strength fine fiber membrane body mainly comprises a material of high strength beating
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structure, and the beating degree is SR28. The degree of beating is increased or decreased
according to the actual material structure to match the high-strength membrane structure, and
the material is selected from hemp, flax, highly-strengthened fiber, nano-modified fiber or other
applicable materials It is a single-range diaphragm that matches the physical voice transmission
characteristics characterized by According to the invention of claim 5, in the full-range singlepiece diaphragm conforming to the physical voice transmission characteristic of claim 3, the
medium-strength medium-fiber membrane body mainly comprises a material of medium-strength
beating structure, and the beating degree is SR23. And according to the actual material structure
to increase or decrease the freeness to match the medium-strength membrane structure,
characterized in that the material is selected from sulfite solution, cowhide pulp or other material
to be applied It is a single-range full-range diaphragm that matches physical voice transmission
characteristics. In the invention of claim 6, in the full-range single-piece diaphragm conforming
to the physical voice transmission characteristic of claim 3, the low strength coarse fiber
membrane body mainly comprises a material of low strength beating structure, and the beating
degree is SR18. The degree of beating is increased or decreased according to the actual material
structure to match the low strength membrane structure, and the material is characterized in that
it is selected from wool, cotton, ballistic resistant fiber or other applicable materials. It is a singlerange full-range diaphragm that matches the physical voice transmission characteristics.
According to the invention of claim 7, in the full-range single-body diaphragm conforming to the
physical voice transmission characteristic according to claim 1, the change in the beating degree
and the material structure strength of the diaphragm is reduced stepwise in a smooth frequency
width. It is considered as a single-range full-range diaphragm that matches the physical voice
transmission characteristics characterized by the following.
[0008]
The invention of claim 8 is characterized in that, in the full-range single-body diaphragm
according to claim 3, the material of the high-strength fine fiber membrane, the medium-strength
medium fiber membrane, and the low-strength coarse fiber membrane Select the combination of
other applicable materials based on the ratio according to the demand of each range
characteristic, and the material is animal fiber, plant fiber, chemical fiber, mineral, glass chemical
fiber, carbonized fiber, chemical auxiliary material, or It is a single-range diaphragm that matches
the physical voice transmission characteristics characterized by being selected from other
applied materials. The invention as set forth in claim 9 is the whole range single diaphragm
conforming to the physical voice transmission characteristic according to claim 1, wherein the
adjustment range of the range includes a whole range and a multiple range. It is a single-range
diaphragm that matches the characteristics. The invention according to claim 10 is characterized
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in that, in the full-range single-body diaphragm conforming to the physical voice transmission
characteristic according to claim 1, the inner edge of the diaphragm and the dustproof cap are
integrally connected, The coupling structure includes an inner ring and an outer ring, and a
coupling groove is formed in the inner ring and the outer ring bottom, and the coupling groove is
for housing the voice coil and coupling the upper portion. It is a single-range diaphragm that
matches the physical voice transmission characteristics characterized by The invention according
to claim 11 is characterized in that, in the full-range single-body diaphragm conforming to the
physical voice transmission characteristic according to claim 10, the cross section of the coupling
groove is A-shaped or inverted U-shaped. It is a single-range diaphragm that matches the voice
transmission characteristics. In the invention of claim 12, in the full-range single-body diaphragm
conforming to the physical voice transmission characteristic according to claim 1, the coupling
structure is provided on the top of the voice coil, and the coupling groove of the coupling
structure is an extension structure of the diaphragm bottom end It is a single-range diaphragm
that matches the physical voice transmission characteristics characterized by combining with.
The invention according to claim 13 is characterized in that, in the full-range single-body
diaphragm conforming to the physical voice transmission characteristic according to claim 12,
the cross section of the coupling groove is V-shaped or U-shaped. It is a single-range diaphragm
that matches the transmission characteristics. The invention according to claim 14 is
characterized in that, in the full-range single-body diaphragm conforming to the physical voice
transmission characteristic according to claim 1, the diaphragm and the dustproof cap are
coupled at the upper joint portion, and the diaphragm and the voice coil are lower. It is a singlerange full-range diaphragm that matches the physical voice transmission characteristics
characterized by being coupled by a coupling unit.
[0009]
It clearly expresses the elegant sound quality of high range, medium range and low range in a
single diaphragm and also reduces the cost of many around as well as improves the response
efficiency, compared to the known technology It is a breakthrough development that will
significantly enhance the practicality and functionality of the speaker's diaphragm.
[0010]
In FIG. 2, the cross-section figure of the speaker 1 is shown.
It includes existing structures such as the diaphragm 2, the dustproof cap 3, the voice coil 4, the
iron core 5, the magnet 6, the washer 7, the damper 8, the frame 9 and the like.
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[0011]
Speaking of the sound used in combination with the speaker 1, since the sound converts
electrical energy into motive energy, as shown in FIG. 3, it is possible to form a piston type
reciprocating motion of the speaker 1 and further push out the air. Generate sound.
[0012]
FIG. 4 shows a linear movement amount corresponding curve diagram regarding the sound
frequency and the piston type reciprocating motion of the speaker 1.
In the figure, it can be understood that the stepwise movement amounts of the high, middle and
low frequencies (that is, the movement amount of the piston type movement) are different.
Among them, the amount of piston movement of the high sound frequency portion is small, the
amount of movement of the piston movement of the medium sound frequency portion is higher
than that of the high sound portion, and the amount of piston movement of the low sound
frequency portion is maximum. Based on this theory, in the single diaphragm 2 structure of the
present invention, it is necessary to have the amount of piston movement to simultaneously
satisfy different sound frequencies.
[0013]
Fig. 5 shows the features of the present invention. The diaphragm 2 structure is directed from
the inner edge to the outer edge of the central dustproof cap 3 gradually toward the outer edge,
and is also referred to as the structural strength, density, or freeness (freeness) of the material.
SR: By appropriately changing the shopper leaguer), the structural strength gradually decreases
from high strength to low strength gradually, and during that time, a change with stepwise
smooth frequency width appears. Are roughly divided into a high strength fine fiber membrane
body 21, a medium strength medium fiber membrane body 22 and a low strength coarse fiber
membrane body 23.
[0014]
The high-strength fine fiber membrane body 21 is responsible for high frequency sound
transmission, which is mainly made of high strength beating material, and the beating degree is
mainly SR28 °, as well as the beating degree based on the actual material structure. The
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material is selected from hemp, flax, highly-strengthened fiber, nano-modified fiber, or any other
applicable material.
[0015]
Medium strength medium fiber membrane body 22 is responsible for medium frequency sound
transmission, which is mainly material of medium strength beating structure, the beating degree
is mainly SR 23 °, as well as beating based on the actual material structure The material is
selected from sulfite solution, bovine hide pulp, or any other applicable material, to be matched
to the medium strength membrane structure by increasing or decreasing the degree.
[0016]
The low strength coarse fiber membrane body 23 is responsible for sound emission of low
frequency, which is mainly made of low strength beating material, and the beating degree is
mainly SR 18 °, as well as the beating degree based on the actual material structure. To match
the low strength membrane structure, and the material is selected from wool, cotton, ballistic
resistant fiber or other applicable materials.
[0017]
As the material of each diaphragm in the above-described embodiment of the present invention, a
material to be combined in another appropriate ratio is selected in accordance with the
characteristics of each diaphragm.
The material is selected from animal fibers, plant fibers, chemical fibers, minerals, glass chemical
fibers, carbonized fibers, chemical auxiliaries or other applicable materials.
[0018]
Therefore, in the cross-sectional structure of the single diaphragm 2 of the present invention, the
material composition at each position, the degree of beating, the structural strength, and the
density are all different, and in particular, the structural strength is gradually increased based on
the order from inside to outside. It is changing.
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The high strength fine fiber membrane body 21 with a degree of beating of SR 28 ° is gradually
reduced gradually to become a medium strength medium fiber membrane body 22 with a degree
of beating of SR 23 °, and further gradually reduced to a low degree of beating degree of SR 18
° It becomes the strength crude fiber membrane body 23.
It is possible to meet the requirements of various strength film structures simply by increasing or
decreasing the degree of beating of the actual material structure. In other words, from the highstrength fine fiber membrane body 21 to the low-strength coarse fiber membrane body 23, the
beating degree is gradually reduced gradually from about SR 28 ° to SR 18 ° in a stepwise
manner. In the single diaphragm 2, since the structural strength of each cross-sectional position
is different and has different piston motion characteristics, voice output of various different
frequencies of high frequency, middle frequency and low frequency in physical voice
transmission characteristics In addition, it is possible to obtain a complete sound quality that can
fully express the entire sound range such as high sound frequency, medium sound frequency,
and low sound frequency with a single diaphragm 2.
[0019]
The effects exhibited by the present invention using the invention of the diaphragm 2 structure
include the following at least. 1. In addition to exhibiting the best sound quality, the speaker itself
improves the efficiency, reduces the requirement for the magnetic field strength of the magnet,
reduces the energy consumption of the magnetic field strength, and reduces the manufacturing
cost. 2. The flat tone quality characteristic design with stepwise smooth frequency width can
reduce the design cost of the voice distributor. 3. By improving the conversion efficiency of
electrical energy and motive energy, simplification of pushing power of the amplifier and
modification design of related sound quality characteristics reduce loss of output efficiency, and
increase the practicability and functionality of the speaker unit. The above three specific effects
can reduce the cost by at least about 15 to 20% and achieve the goal of energy source saving as
compared to the prior art.
[0020]
Implementation of the proposal has the following advantages. 1. As shown in FIG. 1, the aliasing
portion of the sound quality is corrected to achieve a flat and gradual response effect. Since the
frequency response of the known diaphragm structure is reverse resonance, waveform aliasing
becomes large. The frequency correspondence diagram at the time of implementation of the
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proposal is shown in FIG. 6 of the proposal that is contrary to this. As can be seen from this
figure, the step-wise flat design has small sloped aliasing, high frequency response efficiency, and
its sound quality representation is significantly improved compared to the known one. And, the
frequency range is relatively wide, and is an expansion of about 20% as compared with the
known one. In addition, the present invention achieves the purpose of smoothing the sound
quality characteristics and preventing aliasing because the structure strength can be
appropriately adjusted for the diaphragm position corresponding to the aliasing waveform. 2.
The sound meets the needs, the best sound effect is achieved, the characteristic flatness is ± 2
dB, and the band meets the correct requirement of the whole range.
[0021]
The effects of the invention of the present invention in acoustic design are as follows. 1. For a
single speaker: The high efficiency of the present invention can lower the required magnetic field
strength value and use a relatively small magnet, thereby eliminating the need for a large,
expensive magnet. 2. Speaker Box Design: Eliminates the need for complex speaker box audio
distributor designs, reducing equipment material manufacturing costs. 3. About the amplifier:
The improved efficiency of the present scheme allows the amplifier to be of a less efficient
design, reducing circuit manufacturing costs and energy consumption.
[0022]
The connection structure of the diaphragm 2 and the voice coil 4 in the present speaker 1
structure will be described in more detail. As shown in FIG. 7, the inner edge of the diaphragm 2
and the dustproof cap 3 are integrally connected, and in the present invention, in particular, the
joint structure 31 is provided at the joint portion. The coupling structure 31 includes an inner
annular body 311 and an outer annular body 312, and a coupling groove 313 is formed at the
bottom of the inner annular body 311 and the outer annular body 312, and the cross section of
the coupling structure 31 is A-shaped or inverted U-shaped The coupling groove 313 is for
receiving the voice coil 4 and coupling the upper portion. The pistonic movement of the
diaphragm 2 thus relies entirely on the pushed movement of the voice coil 4, so that the ideal
combination of the voice coil 4 and the diaphragm 2 is of considerable importance. In the present
invention, the connecting position of the voice coil 4 is provided in the connecting groove 313 at
the bottom end of the diaphragm 2 and has a good push force and a connecting effect. Compared
with the known structure in which the voice coil is connected to the side of the diaphragm, it has
a better combination effect. The above-described structure is also applicable to the embodiment
shown in FIG. 8. The connecting structure 41 is provided on the voice coil 4 and the connecting
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groove 413 of the connecting structure 41 has a V-shaped or U-shaped cross section. Is for
accommodating and connecting the elongated structure 32 at the bottom end of the diaphragm
2.
[0023]
FIG. 9 shows an embodiment of another structure of the present speaker 1, and the difference is
in the bonding position and method of the diaphragm 2, the dust cap 3, and the voice coil 4. As
shown in FIG. The diaphragm 2 and the dustproof cap 3 are coupled by the coupling portion 33,
and the diaphragm 2 and the voice coil 4 are coupled by the coupling portion 42.
[0024]
It is a frequency corresponding ¦ compatible figure of a well-known speaker diaphragm. It is a
cross-section figure of the speaker of the present invention. It is a piston type reciprocating
motion schematic of the speaker of this invention. FIG. 6 is a curve diagram corresponding to
stepwise movement amounts of a sound frequency range and a piston type movement of a
speaker. It is a local enlargement structure figure of the speaker diaphragm of this invention. It is
a frequency corresponding ¦ compatible figure of the diaphragm of this invention. It is the
connection structure schematic of the diaphragm of this invention, and a voice coil. It is another
connection structural schematic of the diaphragm and voice coil of this invention. It is a crosssection figure of another speaker of this invention.
Explanation of sign
[0025]
1 Speaker 2 Diaphragm 3 Dustproof cap 4 Voice coil 5 Iron core 6 Magnet 7 Washer 8 Damper 9
Frame 21 High strength fine fiber membrane body 22 Medium strength medium fiber membrane
body 23 Low strength coarse fiber membrane body 31 Bonding structure 311 Inner ring body
312 outside Annular body 313 bond groove 32 stretched structure 33 bond portion 41 bond
structure 42 bond portion 413 bond groove
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