CN104378712B - The audio amplifier of low frequency dynamic resonance enhancing - Google Patents
The audio amplifier of low frequency dynamic resonance enhancing Download PDFInfo
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- CN104378712B CN104378712B CN201410735243.XA CN201410735243A CN104378712B CN 104378712 B CN104378712 B CN 104378712B CN 201410735243 A CN201410735243 A CN 201410735243A CN 104378712 B CN104378712 B CN 104378712B
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- low frequency
- audio amplifier
- loudspeaker
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Abstract
The present invention relates to a kind of audio amplifier of low frequency dynamic resonance enhancing, including casing and main loudspeaker, the main loudspeaker to be installed on the casing；Also include resonant body radiator, the resonant body radiator is installed in leading in phase gas flow loop in the casing, and the sound wave air-flow for being sent with the main loudspeaker resonates, to control the low frequency of main loudspeaker dynamic and resonant frequency.The present invention can efficiently solve causes bass distortion when low frequency is excessively heavy in the prior art, alt frequency range is by serious acoustic interference, and the cone of loudspeaker loses circle in low frequency amplitude excessive movements, cause the spoilage of loudspeaker the technological deficiency such as to increase, and make its performance in bass area it is overcast, it is simple and honest, natural, have stretching force, be particularly suitable for applications in K rooms and Hi rooms.
Description
Technical field
The present invention relates to audio amplifier field, more particularly to a kind of audio amplifier of low frequency dynamic resonance enhancing.
Background technology
Audio amplifier is the terminal of whole sound system, and its structure mainly includes casing and loudspeaker, and the structure of loudspeaker is mainly wrapped
Include cone, frame, centering piece (also known as playing ripple), voice coil loudspeaker voice coil and magnet steel.Loudspeaker can propagate acoustic wave energy in the form of a sound wave
Into space, and acoustic wave energy comes from the conversion of electric signal and electromagnetic energy, and the vibrations and motion of loudspeaker both are from just
The change of string ripple electric signal.The motion of loudspeaker is promoted to outside the audio amplifier of front during positive half-wave, and electric signal is when half-wave is born in case
Opposite direction is moved, so there is positive antiphase, malleation and negative pressure inside and outside audio amplifier, the electric signal of positive antiphase will be unified for one
Complete sinewave output must be just led mutually to complete, and what such people heard is a complete sine wave signal.
Loudspeaker are arranged on the casing of audio amplifier, and the front of loudspeaker namely the basin mouth of cone are towards outside casing, and the back side of loudspeaker
Towards box house；At work, the acoustic wave energy entrained by the radiated wave of loudspeaker behind can be surrounded by casing, could not be from case
Exhale in vivo, it is impossible to be used directly；Meanwhile these sound waves can also be influenceed by roundtrip and be made by box house environment
Use on the vibrating body of loudspeaker, wherein the acoustic pressure of anti-ripple can disturb the vibration of the vibrating body of loudspeaker, further influence loudspeaker radiation
The ability and effect of sound wave (sound), it is therefore desirable to box house negative pressure is led and mutually come out, namely is depressurized.From speaker
Front decompression be referred to as leading phase, from audio amplifier rear decompression be referred to as after lead phase.The structure of traditional amusement audio amplifier and
It is led phase situation and refers to Fig. 1 and Fig. 2, wherein, accompanying drawing mark 1 be casing, and it is loudspeaker that accompanying drawing, which identifies 2, and Fig. 1 is leading phase, Fig. 2
Phase is led for after.Phase is led in current amusement OK a karaoke club audio amplifier market after much using, because more preferable bass effect can be exported, but it can give
User brings environment and the difficulty installed, and phase distortion, bass delay be present, debugs the defects of difficult；It is and leading
Mutually lead the few phase distortions of sound and delay mutually out.
Amusement audio amplifier be developed so far, market to play Karaoka audio amplifier quality requirements more and more higher, and the requirement to system will
More and more succinct, super high power, mega bass, the acoustic audio amplifier of singing and can hi well are increasingly welcome by market.But
The audio amplifier for reaching this effect but brings certain difficulty to manufacture, entertains the index of level audio amplifier and the finger of professional audio amplifier
Mark different, performance requirement is unique, because Karaoke audio amplifier and effect are using being leading, if completely with market groups
Very big difficulty can be brought to the manufacture of loudspeaker, performance, durability etc. using it to be leading.So similar audio amplifier in general
Hardly consistent with law of conservation of energy, because what sound was particular about is balance, if too requiring that bass is excessively heavy, alt area is with regard to certain
Can be weak, full range signal is exported on same sounding body, bass is excessively heavy will to produce excessive acoustic interference relative to alt area,
Directly influence people singing effect (such as：Music signal and voice come from same vibration body, on same vibration body
Due to the different performance of frequency, the sound exported has difference).When low frequency in the case of Larger Dynamic is excessively heavy, alt will
Interfered by bass, so as to cause bass distortion, alt frequency range is shaken by serious acoustic interference, the cone of loudspeaker in low frequency
Width is moved through big-and-middle mistake circle, while can also greatly increase the spoilage of loudspeaker.
The content of the invention
For the present invention for audio amplifier of the prior art in the case of Larger Dynamic, low frequency causes bass distortion, middle height when excessively heavy
Audio section is justified by serious acoustic interference, and the cone of loudspeaker in excessive middle lose of low frequency amplitude motion, causes the damage of loudspeaker
The technological deficiencies such as rate increase, propose a kind of audio amplifier of low frequency dynamic resonance enhancing.
A kind of audio amplifier of low frequency dynamic resonance enhancing proposed by the present invention, including casing and main loudspeaker, the main loudspeaker peace
It is located on the casing；Also include resonant body radiator, the resonant body radiator is installed in the casing and leads phase air-flow
On loop, the sound wave air-flow for being sent with the main loudspeaker resonates, to control the low frequency of the main loudspeaker dynamically and humorous
Vibration frequency.
Preferably, the resonant body radiator includes frame, cone and centering piece；The cone is fixed on the frame
In, the centering piece is arranged in the frame, between the bottom of the frame and the cone.
Preferably, the casing is set for leading phase.
Preferably, the frame is cone horn basin rack, the profile of the cone and the cone horn basin rack phase
Matching.
Preferably, the bore of the cone horn basin rack is consistent with the frame bore of the main loudspeaker.
Preferably, the low frequency dynamic resonance enhancing of the audio amplifier refers to music frequency between 40 hertz to 100 hertz
The dynamic resonance enhancing of low frequency.
Preferably, the audio amplifier is amusement audio amplifier.
Beneficial effect：The audio amplifier of low frequency dynamic resonance proposed by the present invention enhancing, leading in phase gas flow loop in its casing
It is installed on resonant body radiator；During the audio amplifier work, the sound wave air-flow that the main loudspeaker are sent promotes the resonant body to radiate
The resonance of certain frequency occurs for device, and the frequency of the resonance can produce certain damping to the air-flow in case in the performance of low-frequency range and make
With having efficiently controlled the low frequency dynamic (motion amplitude) and resonant frequency of main loudspeaker, improved the clear of the sound that audio amplifier is sent
Clear degree；Simultaneously as the low-frequency resonance effect of the resonant body radiator, the clutter meeting of the alt frequency range of box house sound
Absorbed, low-frequency range can be applied, and can be produced after multiple harmonic is overlapped caused by low frequency in casing solid thick and heavy low
Sound exports.Therefore the present invention, which can efficiently solve, causes bass distortion when low frequency is excessively heavy in the prior art, alt frequency range by
Cone to serious acoustic interference, and loudspeaker loses circle in low frequency amplitude excessive movements, causes the spoilage of loudspeaker to increase etc.
Technological deficiency.
Brief description of the drawings
Fig. 1 is the structure for the amusement audio amplifier that leading phase is set and its to lead phase situation schematic diagram in the prior art.
Fig. 2 is to lead the structure of the amusement audio amplifier mutually set afterwards in the prior art and its lead phase situation schematic diagram.
Fig. 3 is a kind of audio amplifier example structure of low frequency dynamic resonance enhancing proposed by the present invention and its leads the signal of phase situation
Figure.
In Fig. 3：10- casings, the main loudspeaker of 20-, 30- resonant body radiators, the reverse acoustic pressure of the main loudspeaker of A-, the leading phase air-flows of B-
Outlet, C- resonant bodies radiator receive sound wave air-flow, and the resonance of D- resonant bodies radiator produces sound wave, and E- leads phase gas channel.
Embodiment
For the ease of it will be appreciated by those skilled in the art that being carried out below in conjunction with accompanying drawing and embodiment to the present invention further
Description.
Referring to Fig. 3, a kind of audio amplifier for low frequency dynamic resonance enhancing that the present embodiment proposes, including casing 10 and main loudspeaker
20, the main loudspeaker 20 are installed on the casing 10；Also include resonant body radiator 30, the resonant body radiator 30 is installed
Leading in phase gas flow loop in the casing 10, the sound wave air-flow for being sent with the main loudspeaker 20 resonate, with control
Make the low frequency dynamic and resonant frequency of the main loudspeaker 20.
In the present embodiment, equivalent to one active focus of main loudspeaker 20, and resonant body radiator 30 is passive equivalent to one
Vibration body, the sound wave air-flow that main loudspeaker 20 are therefrom sent promotes resonant body radiator 30 to resonate, and resonant body radiator 30
The sound wave air-flow that resonating can therefrom send to main loudspeaker 20 plays damping action, so as to control the low frequency of main loudspeaker 20 to move in turn
State (motion amplitude) and resonant frequency.
Assuming that the control action of no resonant body radiator 30, active loudspeaker 20 are special in the case where Larger Dynamic is run
It is not that its voice coil loudspeaker voice coil can do piston movement, and the main control ability of itself of loudspeaker 20 can greatly subtract in the signal work of low-frequency range
Weak, the index of sound can be reduced greatly.Because leading in casing 10 is installed on resonance in phase gas flow loop in the present embodiment
Body radiator 30, when the audio amplifier 10 works, the sound wave air-flow that the main loudspeaker 20 are sent promotes the resonant body radiator 30
The resonance of certain frequency occurs, the frequency of the resonance can produce certain damping in the performance of low-frequency range to the air-flow in casing 10
Effect, has efficiently controlled the resonant dynamic (motion amplitude) and resonant frequency of main loudspeaker 20, has improved the sound that audio amplifier is sent
Definition；Simultaneously as the low-frequency resonance effect of the resonant body radiator 30, the alt frequency range of the internal sound of casing 10
In clutter (including unnecessary harmful clutter in casing 10, noise caused by windage etc.) can be absorbed, low-frequency range can quilt
It is superimposed, multiple harmonic caused by low frequency can produce solid thick and heavy bass output in casing after being overlapped.Therefore this implementation
Example, which can efficiently solve, causes bass distortion when low frequency is excessively heavy in the prior art, alt frequency range by serious acoustic interference,
And the cone of loudspeaker loses circle in low frequency amplitude excessive movements, cause the spoilage of loudspeaker the technological deficiency such as to increase.
In order to which the purpose of the present embodiment is better achieved, the present embodiment has done excellent to the structure of the resonant body radiator 30
Change design, specifically, the resonant body radiator 30 includes frame, cone and centering piece；The cone is fixed on the frame
In, the centering piece is arranged in the frame, between the bottom of the frame and the cone.
In the present embodiment, in order to understand conveniently, resonant body radiator 30 can be understood as one and not possess voice coil loudspeaker voice coil and magnetic
Steel (is had any different) from loudspeaker with the structure of main loudspeaker 20, in the resonant body radiator 30 frame, cone and centering piece three it
Between fixed relationship may be referred to fixed relationship between frame, cone and the centering piece of main loudspeaker 20.
Moreover, in the present embodiment, low frequency dynamic resonance that the resonant body radiator 30 can strengthen as needed changes
The soft durometer of its centering piece and the thickness degree of cone, so as to the principle according to resonance, resonant body radiator 30 is by main loudspeaker
The influence of the 20 sound wave air-flows sent, it will produce the vibration of fixed frequency.Resonant body radiator 30 damps work caused by vibrating
With the motion amplitude and resonant frequency that can efficiently control main loudspeaker 20, the distortion factor of low frequency greatly reduces, in Larger Dynamic
Working condition under improve the stability of main loudspeaker 20.
In the present embodiment, the casing 10 is set for leading phase, and phase gas flow loop is led because resonant body radiator 30 is arranged on
In so that audio amplifier leads phase air-flow and exports more preferable low distortion low frequency sound signals, effectively improves the sound-generating strip of speaker
Part, so as to improve the characteristic of audio amplifier, will not be excessively heavy because of bass area bass, excessively false and interfere voice in the table of middle low frequency range
It is existing, while sensitivity, sound pressure level and the service life of audio amplifier can be also greatly improved, more meet the demand of current casino market.
Further, in the present embodiment, the frame of the resonant body radiator 30 is cone horn basin rack, the resonance
The profile of the cone of body radiator 30 matches with the cone horn basin rack.Meanwhile the bore of the cone horn basin rack
It is consistent with the frame bore of the main loudspeaker.It can so make main loudspeaker 20 with resonant body radiator 30 relative one on monnolithic case
Cause, be more beneficial for the control that resonant body radiator 30 realizes the low frequency dynamic resonance to main loudspeaker 20.
In the present embodiment, the low frequency dynamic resonance enhancing of the audio amplifier is preferably at 40 hertz to 100 for music frequency
The dynamic resonance enhancing of low frequency between hertz.Certainly, the present embodiment is not limited only to control between 40 hertz to 100 hertz
Low frequency, but the present embodiment can be just good to the control effect of the low frequency between 40 hertz to 100 hertz.
In the present embodiment, the audio amplifier is preferably to entertain audio amplifier.Control of the audio amplifier to low frequency dynamic resonance is entertained to possess more
High request, the present embodiment is for entertaining the beneficial effect of audio amplifier more preferably.
The audio amplifier for the low frequency dynamic resonance enhancing that the present embodiment proposes, its performance in bass area is overcast, it is simple and honest, natural,
There is stretching force.For example, in main 20 normal sounding of loudspeaker, when music has low frequency signal performance, with casing 10 special construction and
Resonant body radiator 30 is combined, and is allowed to produce multiple harmonic and low frequency energy superposition, then using leading phase so that audio amplifier is led
Phase air-flow exports more preferable low distortion low frequency, is effectively improved the practicality of audio amplifier.
The present embodiment can reduce the technical requirements to main loudspeaker 20, without focusing on very much the thickness of the main bass of loudspeaker 20,
As long as it has normal naturally bass performance.The present embodiment is particularly suitable for K rooms and Hi rooms mainly for closely public address,
Bass shows full, simple and honest, true nature when having low frequency signal in use, there is the taste of subwoofer.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (5)
1. a kind of audio amplifier of low frequency dynamic resonance enhancing, including casing and main loudspeaker, the main loudspeaker are installed on the casing；
Characterized in that, also including resonant body radiator, the resonant body radiator is installed in the casing and leads phase gas flow loop
On, the sound wave air-flow for being sent with the main loudspeaker resonates, to control the low frequency of main loudspeaker dynamic and resonance frequency
Rate；
The resonant body radiator includes frame, cone and centering piece；The cone is fixed in the frame, the centering piece
It is arranged in the frame, between the bottom of the frame and the cone；
The casing is set for leading phase.
2. the audio amplifier of low frequency dynamic resonance enhancing according to claim 1, it is characterised in that the frame is cone loudspeaker
Frame, the profile of the cone match with the cone horn basin rack.
3. the audio amplifier of low frequency dynamic resonance enhancing according to claim 2, it is characterised in that the cone horn basin rack
Bore it is consistent with the frame bore of the main loudspeaker.
4. the audio amplifier of low frequency dynamic resonance enhancing according to any one of claims 1 to 3, it is characterised in that the audio amplifier
The enhancing of low frequency dynamic resonance refers to the dynamic resonance enhancing of low frequency of the music frequency between 40 hertz to 100 hertz.
5. the audio amplifier of low frequency dynamic resonance enhancing according to claim 4, it is characterised in that the audio amplifier is amusement sound
Case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735243.XA CN104378712B (en) | 2014-12-04 | 2014-12-04 | The audio amplifier of low frequency dynamic resonance enhancing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735243.XA CN104378712B (en) | 2014-12-04 | 2014-12-04 | The audio amplifier of low frequency dynamic resonance enhancing |
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| Publication Number | Publication Date |
|---|---|
| CN104378712A CN104378712A (en) | 2015-02-25 |
| CN104378712B true CN104378712B (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410735243.XA Active CN104378712B (en) | 2014-12-04 | 2014-12-04 | The audio amplifier of low frequency dynamic resonance enhancing |
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| CN (1) | CN104378712B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3481087A4 (en) * | 2016-05-18 | 2020-09-09 | Tang Band Industries Co., Ltd. | Radiation device and dual suspension edge loudspeaker, loudspeaker box, and application thereof |
| CN107979787B (en) * | 2017-11-28 | 2020-01-21 | 东台鹏美电子实业有限公司 | Bass speaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228699Y (en) * | 1994-11-22 | 1996-06-05 | *** | Composite sound-coupling phase-inversion speaker cabinet |
| CN2311109Y (en) * | 1997-08-26 | 1999-03-17 | 冯卫国 | Foot stool resonant speaker system |
| CN2332136Y (en) * | 1997-08-21 | 1999-08-04 | 杨明海 | Multi-mode loudspeaker box |
| CN203504545U (en) * | 2013-08-28 | 2014-03-26 | 东莞市德生通用电器制造有限公司 | Radio with passive radiator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7207413B2 (en) * | 2003-06-02 | 2007-04-24 | Tbi Audio Systems Llc | Closed loop embedded audio transmission line technology for loudspeaker enclosures and systems |
-
2014
- 2014-12-04 CN CN201410735243.XA patent/CN104378712B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228699Y (en) * | 1994-11-22 | 1996-06-05 | *** | Composite sound-coupling phase-inversion speaker cabinet |
| CN2332136Y (en) * | 1997-08-21 | 1999-08-04 | 杨明海 | Multi-mode loudspeaker box |
| CN2311109Y (en) * | 1997-08-26 | 1999-03-17 | 冯卫国 | Foot stool resonant speaker system |
| CN203504545U (en) * | 2013-08-28 | 2014-03-26 | 东莞市德生通用电器制造有限公司 | Radio with passive radiator |
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| Publication number | Publication date |
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| CN104378712A (en) | 2015-02-25 |
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Effective date of registration: 20230719 Address after: 511400 No.3, east third lane, Hougang Industrial Park, Shayong, Dalong street, Panyu District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU NUOZUN ELECTRONIC TECHNOLOGY CO.,LTD. Address before: 410014 Room 201, Building 9, No. 04, Natural Ridge Road, Yuhua District, Changsha City, Hunan Province Patentee before: Li Jianhui |