CN206077674U - A kind of audio amplifier - Google Patents
A kind of audio amplifier Download PDFInfo
- Publication number
- CN206077674U CN206077674U CN201620930437.XU CN201620930437U CN206077674U CN 206077674 U CN206077674 U CN 206077674U CN 201620930437 U CN201620930437 U CN 201620930437U CN 206077674 U CN206077674 U CN 206077674U
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- audio amplifier
- horn
- casing
- outer container
- open
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Abstract
The utility model discloses a kind of audio amplifier, which includes casing and speaker and phase-reversing tube on the casing, and the casing includes outer container and the interior case in the outer container, and the interior case is made up of wood materials, the outer container is made of plastics, and speaker is suspended by audio amplifier using electric magnet.The phase-reversing tube, which includes cylinder and horn-like open in front of cylinder, and the horn-like open inner surface is placed with the pit array structure being made up of some circular hole pits.The outer container of interior case and plastics of the above-mentioned audio amplifier by setting wood materials, the tonequality of audio amplifier can both have been ensured, it is easy to again for the outward appearance of audio amplifier to be fabricated to required form, and it is less to resonate, the sound timbre for sending is preferable, in horn-like open inner surface setting pit array structure, air drag is reduced, is accelerated air-flow and is passed through, it is to avoid the noise that friction is produced, make audio amplifier that there is more preferable low frequency acoustical quality, and it is also more attractive in appearance in appearance.
Description
Technical field
This utility model is related to sound system technical field, more particularly to a kind of phase inverted cabinet.
Background technology
Audio amplifier is last in whole sound system flow process, is also a most important composition, and its playing quality is to whole
The impact of individual systematic function greatly, estimates according to professional person that contribution of the audio amplifier to whole sound system accounts for whole system
More than 30%.Audio amplifier itself includes shadow of the quality of voice box casing, speaker and frequency divider, speaker and frequency divider to tonequality
Sound accounts for 70%, and impact of the voice box casing to tonequality accounts for 30%, because impact of the speaker with frequency divider to tonequality is larger, institute
All it is to improve speaker and frequency divider with prior art most people, and few people goes to improve voice box casing.
For general phase inverted cabinet, the phase-reversing tube of audio amplifier is by changing speaker of voice box phase place, filling
Divide the principle using speaker back side radiant, so as to be effectively increased low frequency component, improve audio amplifier low frequency audio.But current city
Sound box inverted tube shape on face is single, and all there are some flaws to a certain extent：Such as there is noise, make one to feel low
Sound is stiff, and elasticity is inadequate, and also strong constriction.And Chinese utility model patent CN：201220496145 adopt
A kind of undulatory phase-reversing tube, which is provided with corrugated striated structure in phase-reversing tube, improves existing paraphase to a certain extent
The noise of pipe, bass are stiff and elastic inadequate, but bass output effect yet suffers from deficiency, while the research in acoustics is led
Domain, it is found which can produce certain damping, affect low frequency dive effect.
Utility model content
The purpose of this utility model is the deficiency for the problems referred to above, designs a kind of new audio amplifier, can reduce resonance,
Air drag is reduced, makes audio amplifier that there is more preferable low frequency acoustical quality.
In order to achieve the above object, this utility model is employed the following technical solutions：
Audio amplifier, including casing, controller and the speaker on the casing, it is characterised in that：The casing includes
Integrally formed outer container and the interior case in outer container, the interior case are made up of wood materials, and the outer container is made of plastics, institute
State interior case and outer container is brought into close contact；
The opening through outer container and interior case is offered on the casing, the interior case includes hollow cavity, the audio amplifier
Also include the phase-reversing tube on casing, described phase-reversing tube one end is exposed in the air outside casing, and the other end is stretched in cavity；
The phase-reversing tube includes cylinder and horn-like open in front of cylinder, the horn-like open interior table
Face is placed with the pit array structure being made up of some circular hole pits；
The casing includes front panel, rear board, left panel, right panel, base plate and top board, before the opening is arranged on
Panel；
The speaker is provided with dust cover and magnet, is provided with every magnetosphere between the dust cover and magnet, the magnet
It is set on magnetosphere, is equipped with the left panel, right panel, base plate and top board for adsorbing the electric magnet of magnet, often
Individual electric magnet is provided with a magnetic field sensor for induced field Strength Changes, and the electric magnet and magnetic sensors are equal
It is electrically connected with the controller, and is also fixed by flexible sealing material sealing between speaker and front panel, and on the base plate
A support for the support speaker when electric magnet does not work is provided with, the frame bottom hollow out is available for aforesaid paraphase
Pipe through.
Further, the horn-like open section is circle；Or, it is described horn-like open to be justified by rear end for one kind
Tee section forward end elliptic cross-section seamlessly transits gradually expand horn-like open.
Further, the cylinder constitutes monoblock type phase-reversing tube with horn-like open being integrally formed；Or, the cylinder
Body open connects and composes split type phase-reversing tube by easy assembling-disassembling structure with horn-like.
Further, the center of the support is provided with the magnetic flux that the magnetic force produced for the electric magnet on base plate passes through
Hole.
Further, the pedestal upper end face is provided with pressure transducer, and the pressure transducer is electrically connected with controller
Connect.
The utility model has the advantage of, the outer container of interior case and plastics of the above-mentioned audio amplifier by setting wood materials both may be used
Ensure the tonequality of audio amplifier, be easy to again for the outward appearance of audio amplifier to be fabricated to required form, integrally formed outer case is difficult gas leakage, passes through
Speaker is suspended by electric magnet, and front panel of such speaker only by flexible sealing material with voice box casing has annexation,
The vibration that i.e. speaker is produced is delivered on voice box casing without going past the part being directly connected to, and can only pass through flexible material
It is delivered on front panel, so passing to past vibration can be substantially reduced by flexible material, so will not make during speaker operation
There is resonance in voice box casing, the sound timbre that such audio amplifier sends preferably, and using magnetic sensors detecting magnetic field, so
Stability that can be when preferably controlling loudspeaker suspends so that speaker is not easy shake when suspending, and magnet with raise one's voice
It is provided between device every magnetosphere, so can effectively prevents the magnetic field that electric magnet is formed from affecting the work of speaker itself, and
And a support is set, so when not being powered, i.e., when electric magnet does not work, support can be played by support and be raised
The function of sound device, and during magnet switching electricity, the position of speaker is constant, i.e., in the unexpected power-off of electric magnet, that is, raise one's voice
Device will not cause speaker damage because there is range difference when being changed into by support holding state from suspended state.
Innovatively in horn-like open inner surface setting pit array structure, air drag is reduced, accelerate air-flow
Pass through, it is to avoid " puff titters puff and titters " noise that friction is produced, make audio amplifier that there is more preferable low frequency acoustical quality, and in appearance also more
Plus it is attractive in appearance.The pit array structure being made up of some circular hole pits is placed with to tonequality shadow using in horn-like open inner surface
Loud principle is as follows：If horn-like open inner surface is smooth cambered surface, when streaming, the evening that Transitional And Turbulent Flow occurs, with
The corresponding regular flow of turbulent flow is referred to as laminar flow, and laminar boundary layer is easier to flow separation phenomenon that (i.e. streamline leaves ball
Surface), heading on for smooth arc-shaped surface forms higher-pressure region, and the back side forms larger low-pressure area, and (pressure reduction hinders to produce very big resistance
Power).And horn-like open 12 inner surface, when being placed with circular hole pit, circular hole pit promotes Transitional And Turbulent Flow to occur, turbulence edge
Interlayer is not susceptible to flow separation phenomenon, so as to the low-pressure area of horn-like open cambered surface behind is little, reduces resistance.Turbulent flow is rubbed
Resistance is bigger than laminar flow, but compared with form drag, rises and must act on very little, and total resistance still diminishes.This utility model is set this
Meter is used on phase-reversing tube, reduces air drag, is accelerated air-flow and is passed through, it is to avoid " puff titters puff and titters " noise that friction is produced, makes
Audio amplifier has more preferable low frequency acoustical quality, and also more attractive in appearance on appearance.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the phase-reversing tube structural representation of this utility model embodiment 1；
Fig. 3 is the structural representation of the phase-reversing tube of this utility model embodiment 2；
Fig. 4 is the main view figure structure schematic representation of phase-reversing tube of the present utility model.
Have in FIG：
1 --- outer container；2 --- interior case；3 --- phase-reversing tube；301 --- cylinder；302 --- it is horn-like open；
303 --- circular hole pit；4 --- dust cover；5 --- electric magnet；6 --- support；7 --- every magnetosphere；8 --- magnet；9——
Flux bore；10 --- flexible sealing material.
Specific embodiment
It should be appreciated that specific embodiment described herein is not used to limit this only to explain this utility model
Utility model.
Embodiment 1
Audio amplifier, including casing, controller and the speaker on the casing, it is characterised in that：The casing includes
Integrally formed outer container 1 and the interior case 2 in outer container 1, the interior case 2 are made up of wood materials, and the outer container 1 is by plastics system
It is brought into close contact into, the interior case 2 and outer container 1；
The opening through outer container 1 and interior case 2 is offered on the casing, the interior case 2 includes hollow cavity, the sound
Case also includes the phase-reversing tube 3 on casing, and 3 one end of the phase-reversing tube is exposed in the air outside casing, and the other end stretches into chamber
In vivo；
The phase-reversing tube 3 includes cylinder 301 and in front of cylinder 301 horn-like open 302, described horn-like
Open 302 inner surface is placed with the pit array structure being made up of some circular hole pits 303；
The casing includes front panel, rear board, left panel, right panel, base plate and top board, before the opening is arranged on
Panel；
The speaker is provided with dust cover 4 and magnet 8, is provided with every magnetosphere 7 between the dust cover 4 and magnet 8, described
Magnet 8 is set on magnetosphere 7, is equipped with for adsorbing the electricity of magnet 8 on the left panel, right panel, base plate and top board
Magnet 5, each electric magnet 5 are provided with a magnetic field sensor for induced field Strength Changes, the electric magnet 5 and magnetic
Field induction apparatuss are electrically connected with the controller, and are also fixed by the sealing of flexible sealing material 10 between speaker and front panel, and
And the base plate is provided with a support 6 for the support speaker when electric magnet 5 does not work, 6 bottom hollow out of the support,
It is available for aforesaid phase-reversing tube 3 to pass through.
Described horn-like open 302 gradually expand for a kind of being seamlessly transitted by rear end circular cross-section forward end elliptic cross-section
Horn-like open 302.
The cylinder 301 connects and composes split type phase-reversing tube 3 by easy assembling-disassembling structure with horn-like open 302.
The center of the support 6 is provided with the flux bore 9 that the magnetic force produced for the electric magnet 5 on base plate passes through.
6 upper surface of the support is provided with pressure transducer, and the pressure transducer is electrically connected with the controller.
Embodiment 2
The cylinder 301 is integrally formed composition monoblock type phase-reversing tube 3 with horn-like open 302.
Other technical schemes of the present embodiment are essentially identical with embodiment 1.The feature not laid down a definition in the present embodiment, adopts
The explanation of embodiment 1, here are no longer repeated.
Finally it should be noted that above example is merely to illustrate the technical solution of the utility model rather than to this practicality
The restriction of novel protected scope, although being explained in detail to this utility model with reference to preferred embodiment, the common skill of this area
Art personnel should be appreciated that and the technical solution of the utility model can be modified or equivalent, without deviating from this practicality
The spirit and scope of new technique scheme.
Claims (6)
1. a kind of audio amplifier, including casing, controller and the speaker on the casing, it is characterised in that：The casing bag
Integrally formed outer container and the interior case in outer container are included, the interior case is made up of wood materials, and the outer container is made of plastics,
The interior case and outer container are brought into close contact；
The opening through outer container and interior case is offered on the casing, the interior case includes hollow cavity, and the audio amplifier is also wrapped
The phase-reversing tube on casing is included, described phase-reversing tube one end is exposed in the air outside casing, and the other end is stretched in cavity；
The phase-reversing tube includes cylinder and horn-like open in front of cylinder, the horn-like open inner surface row
It is furnished with the pit array structure being made up of some circular hole pits；
The casing includes front panel, rear board, left panel, right panel, base plate and top board, before the opening is arranged on
Plate；
The speaker is provided with dust cover and magnet, is provided with every magnetosphere between the dust cover and magnet, and the magnet is arranged
On magnetosphere, it is being equipped with the left panel, right panel, base plate and top board for adsorbing the electric magnet of magnet, each electricity
Magnet is provided with a magnetic field sensor for induced field Strength Changes, the electric magnet and magnetic sensors with control
Device electrical connection processed, and also fixed by flexible sealing material sealing between speaker and front panel, and the base plate is provided with
One support for the support speaker when electric magnet does not work, the frame bottom hollow out are available for aforesaid phase-reversing tube to wear
Cross.
2. audio amplifier according to claim 1, it is characterised in that：The horn-like open section is circle；Or, it is described
It is horn-like open for a kind of gradually expand horn-like open of being seamlessly transitted by rear end circular cross-section forward end elliptic cross-section.
3. audio amplifier according to claim 1, it is characterised in that：The cylinder with it is horn-like it is open be integrally formed composition it is whole
Body formula phase-reversing tube；Or, the cylinder open connects and composes split type phase-reversing tube by easy assembling-disassembling structure with horn-like.
4. audio amplifier according to claim 1, it is characterised in that：The center of the support is provided with one for the electromagnetism on base plate
The flux bore that the magnetic force that ferrum is produced passes through.
5. audio amplifier according to claim 1, it is characterised in that：The pedestal upper end face is provided with pressure transducer, and described
Pressure transducer is electrically connected with the controller.
6. audio amplifier according to claim 1, it is characterised in that：The cylinder is 4～8cm apart from rear board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620930437.XU CN206077674U (en) | 2016-08-24 | 2016-08-24 | A kind of audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620930437.XU CN206077674U (en) | 2016-08-24 | 2016-08-24 | A kind of audio amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206077674U true CN206077674U (en) | 2017-04-05 |
Family
ID=58431369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620930437.XU Active CN206077674U (en) | 2016-08-24 | 2016-08-24 | A kind of audio amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206077674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172529A (en) * | 2017-06-26 | 2017-09-15 | 广州威锋音响有限公司 | A kind of Novel sound box |
-
2016
- 2016-08-24 CN CN201620930437.XU patent/CN206077674U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172529A (en) * | 2017-06-26 | 2017-09-15 | 广州威锋音响有限公司 | A kind of Novel sound box |
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