CN108200513A - A kind of nature circular horn formula paraphase structure mini speaker - Google Patents
A kind of nature circular horn formula paraphase structure mini speaker Download PDFInfo
- Publication number
- CN108200513A CN108200513A CN201810149898.7A CN201810149898A CN108200513A CN 108200513 A CN108200513 A CN 108200513A CN 201810149898 A CN201810149898 A CN 201810149898A CN 108200513 A CN108200513 A CN 108200513A
- Authority
- CN
- China
- Prior art keywords
- circular horn
- horn formula
- speaker
- nature
- reversing tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001427 coherent effect Effects 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001503991 Consolida Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The present invention is a kind of natural circular horn formula paraphase structure mini speaker, including babinet, tank of raising one's voice is equipped in the babinet, is set in tank of raising one's voice and is equipped with loud speaker, and loud speaker is just facing towards outside babinet；The nature circular horn formula paraphase structure mini speaker is internally provided with nature circular horn formula phase-reversing tube, the nature circular horn formula phase-reversing tube is the hollow tube of plane thread shape, center one end of natural circular horn formula phase-reversing tube is led to outside babinet, and passive vibrating diaphragm is equipped at the center of natural circular horn formula phase-reversing tube；The nature circular horn formula phase-reversing tube other end is connected with tank of raising one's voice.The structure of the present invention can obtain very high sound quality on miniature speaker, achieve unexpected technique effect.
Description
Technical field
The present invention relates to sound technique fields, and in particular to a kind of nature circular horn formula paraphase structure mini speaker.
Background technology
It is well known that phonation unit is bigger, the volume of speaker is bigger, and sound timbre is better, but this just at present it is portable
The social current for changing mobile produces contradiction, in today that mobile phone is all increasingly lightening, social demand is smaller, it is portable,
The better speaker of sound quality, will especially develop portable ambiophonic system, and the voice unit (VU) using miniaturization is that technology is realized
Key, in the inside of small-size sound box, to fully consider that material, audio cavity structure and manufacture craft influence sound quality.
The vibrating diaphragm of all loud speakers is forward and backward all to generate sound wave, but its opposite in phase, if being not added with partition, because of front and rear pressure
Power is offset, and output is practically negligible；Babinet is exactly for separating forward and backward sound wave.Paraphase babinet is that the sound wave in a direction exists
Phase turns over turnback, is allowed to and in addition in the same direction all the way, is overlapped mutually and improves acoustic pressure.What theoretically phase inverting box was brought is good
Place, including：1st, volume, which improves promotion volume maximum, five decibels.2nd, higher efficiency can promote low frequency response.3rd, lower section
Only frequency can at most reduce by 30 percent.Phase inverting box be can be made smaller under conditions of performance is consistent.Generally,
Generally according to EBP criterions, index definition is for the design of speaker：The resonant frequency f of loud speaker and the ratio of circuit part q values,
The resonant frequency for being wherein loudspeaker unit is the circuit part Q values of loud speaker, and the unit of EBP is Hz.Loudspeaker unit
EBP can also be designed in the range of 50-100 hertz with phase inverting box with fully sheathed case, and EBP, which is more than 100Hz, should be designed as paraphase
Case, EBP are then designed as fully sheathed case less than 50Hz.
In view of this, it is special to propose the present invention.
Invention content
To solve the problems, such as that miniature loudspeaker box sound quality is poor, the present invention proposes a kind of natural circular horn formula paraphase structure mini sound
Case.
Circular horn can vibrate the lip of very little sends out very big volume and graceful sound by the pressurization and amplification of tube body
Color, number two circle of pipe dish rotation of the natural circular horn of the 17th century France, it is stated that required for can blowing out ferocious hunt with different overtone pipes at that time
31 kinds of different signals, seen animal species, size, the color of even animal can be described with specific bugle call.
Simplest nature circular horn is that elongated conical number pipe (pipe range is generally between 2~5.5 meters) is coiled into 1~3 circle, most
Very big horn mouth is extended to the outside into afterwards.Lip is withstood on smaller funnel-form mouth when playing wind instruments, lip plays reed
Breath is sent into a number pipe by effect, the air-column vibration in the number of making pipe and pronounce, wherein treble has abundant overtone, tone color
With loud and clear, brilliant makings.
Due to portable needs, the volume of speaker will be small, and the volume of generating unit is naturally small, and amplitude is inevitable also small, very
Small lip vibration can become the tone color of loud and clear grace by the natural circular horn of France, then similary, the sounding list of smaller amplitude
Member cooperation is similar to the paraphase structure of the natural circular horn of France, it is possible to obtain better sound effect.Therefore our research and development group
Team is inspired by French natural circular horn, is spiral by the paraphase structure design of speaker.
The present invention is achieved through the following technical solutions：
A kind of nature circular horn formula paraphase structure mini speaker, including babinet, is equipped with tank of raising one's voice, loud speaker in the babinet
It is set in slot and loud speaker is installed, loud speaker is just facing towards outside babinet；
The nature circular horn formula paraphase structure mini speaker is internally provided with nature circular horn formula phase-reversing tube, the nature circular horn formula
Phase-reversing tube is the hollow tube of plane thread shape, and center one end of natural circular horn formula phase-reversing tube is led to outside babinet, natural circular horn formula
Passive vibrating diaphragm is equipped at the center of phase-reversing tube；The nature circular horn formula phase-reversing tube other end is connected with tank of raising one's voice.
Further to improve, the babinet is made of wooden unit, and the nature circular horn formula phase-reversing tube is processes inside wooden unit
The coherent hole of the plane thread shape gone out is formed.
Further to improve, the nature circular horn formula phase-reversing tube is the plane thread shape of 2 circles.
Further to improve, the nature circular horn formula phase-reversing tube is connected by curved conduit with tank of raising one's voice.
Compared with prior art, the present invention has the following advantages：
Miniature speaker has been made using unique natural circular horn formula paraphase structure in the present invention.It can make sound in speaker
Pressurization, phase-reversing tube has been elongated in smaller volume, is pushed passive vibrating diaphragm in the lower end of speaker, is released stress, forms shake
Dynamic --- paraphase --- pressurization --- process of release.Using compact full loudspeaker unit and using this creative structure
Design, portable speaker can further reduce volume under the premise of tone color is ensured.It is obtained very on miniature speaker
High sound quality achieves unexpected technique effect.
Description of the drawings
Fig. 1：1 side sectional view of embodiment；
Fig. 2：The A-A direction views of Fig. 1.
In figure：1- babinets；2- raises one's voice tank；3- loud speakers；4- nature circular horn formula phase-reversing tubes；The passive vibrating diaphragms of 5-.
Specific embodiment
Below by embodiment, the present invention is further illustrated, but the present invention is not limited only to these embodiments.
Embodiment 1
A kind of natural circular horn formula paraphase structure mini speaker as depicted in figs. 1 and 2.Including babinet 1, babinet 1 is wooden unit
It is made, one is offered on babinet 1 and is raised one's voice tank 2, is set in tank 2 of raising one's voice and loud speaker 3 is installed, loud speaker 3 is just facing towards outside body 1
Portion；
The nature circular horn formula paraphase structure mini speaker is internally provided with nature circular horn formula phase-reversing tube 4, and natural circular horn formula is fallen
The coherent hole of plane thread shape of the phase pipe 4 to be processed inside wooden unit is formed (as shown in Figure 2), the nature circular horn formula
Phase-reversing tube 4 is the plane thread shape of 2 circles of spiraling, and center one end of natural circular horn formula phase-reversing tube 4 is led to outside babinet, naturally circle
Passive vibrating diaphragm 5 is equipped at the center of number formula phase-reversing tube 4；4 other end of nature circular horn formula phase-reversing tube passes through curved conduit
Tank 2 connects with raising one's voice.
The size of loudspeaker monomer has absolute relationship, the low frequency performance of small size monomer with its lowest resonance frequency
It can not make comparisons with large-sized, how further do the size of speaker small, while not influence sound quality again, passive vibrating diaphragm
Design can help the extension of small size monomer low frequency performance.Therefore the design speaker lower end spiral phase-reversing tube opening
Passive vibrating diaphragm is installed, to promote low frequency performance.Spiral lead of the natural circular horn of the similar France of the also creative use of team is mutually tied
Structure can make sound pressurize in speaker, and guide pipe has been elongated in smaller volume, and passive vibrating diaphragm is pushed in the lower end of speaker,
It releases stress, forming vibrations, --- paraphase --- pressurization --- process of release uses this using compact full loudspeaker unit
One creative structure design, portable speaker can further reduce volume under the premise of tone color is ensured.When input one
When a sine wave signal is to loud speaker, the signal of positive half period can be received first and makes vibrating diaphragm that can move out, such movement
It can expand the air in closed speaker, the pressure in cavity is caused to become smaller, and cause passive radiator toward speaker internal direction
Movement；When sine wave signal is converted to negative half-cycle, the vibrating diaphragm of loud speaker inwardly moves so that and air is compressed in cavity,
The pressure in cavity is caused to rise, and passive radiator can be caused to be moved toward speaker outside direction.
There is the phenomenon that resonance in many of natural place such as：The acoustic resonance of musical instrument, some Jovian planets of the solar system are defended
The resonance of basilar memebrane, resonance of circuit etc. in orbit resonance, animal ear between star.In resonant tank, radio in stringed musical instrument
Electric resonance etc., exactly make system frequency identical with the frequency of driving force.One physical system is under specific frequency, than other
Frequency does the situation vibrated with the amplitude of bigger；These specific frequencies are referred to as resonant frequency.Under resonant frequency, the week of very little
Phase vibration can generate very big vibration, because system stores kinetic energy.When resistance very little, resonant frequency about with system from
Right frequency or intrinsic frequency are equal, frequency when the latter is free oscillation.Therefore in the selection of material, with high density reality
Wooden to make casing of loudspeaker box, in addition to appearance is mellow and full, feel is fine and smooth outer, and the density of material of casing of loudspeaker box is bigger, babinet when making a sound
Generated resonance is just smaller, and such sound can be restored more really." wooden " material of adequate thickness is used in this way
Material can have well that the seal of better effect and timber is also very outstanding than other materials such as plastics as babinet, such sound
Sound signal can be showed effectively by the air vibration in babinet, and the good wood of finished product is with the year used
Month and by sound in air to its continuous friction and cavity generates subtle flow inside it, become the change for being more suitable for sound
Change, sound quality is more fine and smooth.The density of timber is more much larger than plastics, wooden absorption resonance harmonic wave more better than plastics energy, will not
There is too many noise.
The speaker of the present embodiment invites 50 professional persons to carry out subjective assessment：
Subjective tone color evaluation table
Test not tested in by the recording studio environment of external interference in closing, using identical playback equipment and mutually in unison
Sound test material, the volume size of this miniature loudspeaker box is 70*35*20mm, it is contemplated that its usage scenario, LisPos are apart from hearer
Ears each side 25cm, stereo audition material.
In 50 parts of evaluation tables, first 5 almost all-round excellent, and only " richness " has 2 parts of evaluation table indexs to be good, in loudness one
50 parts of grade forms, it is excellent to have 42 parts of indexs, and 5 parts of indexs are good, during 3 parts are.Since volume is limited, the power of loud speaker only has
2W since auditor has pervious audition experience, is inevitably compared, therefore with powerful loud speaker in loudness
It can feel in loudness " sometimes less sufficient ", but as a miniature loudspeaker box using paraphase special construction, can have such
Tone color shows or the well beyond expection of tester.It is evaluated by the system subjectivity tone color of 50 professional persons, this sound
Case tone color in the speaker of equal volume size is outstanding.Achieve unexpected technique effect.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of nature circular horn formula paraphase structure mini speaker, including babinet, which is characterized in that be equipped with loud speaker in the babinet
Slot sets in tank of raising one's voice and is equipped with loud speaker, and loud speaker is just facing towards outside babinet；
The nature circular horn formula paraphase structure mini speaker is internally provided with nature circular horn formula phase-reversing tube, the nature circular horn formula paraphase
The hollow tube for plane thread shape is managed, center one end of natural circular horn formula phase-reversing tube is led to outside babinet, natural circular horn formula paraphase
Passive vibrating diaphragm is equipped at the center of pipe；The nature circular horn formula phase-reversing tube other end is connected with tank of raising one's voice.
2. a kind of natural circular horn formula paraphase structure mini speaker as described in claim 1, which is characterized in that the babinet is wood
Block is made, and the coherent hole of plane thread shape of the nature circular horn formula phase-reversing tube to be processed inside wooden unit is formed.
A kind of 3. natural circular horn formula paraphase structure mini speaker as described in claim 1, which is characterized in that the nature circular horn
Formula phase-reversing tube is the plane thread shape of 2 circles.
A kind of 4. natural circular horn formula paraphase structure mini speaker as described in claim 1, which is characterized in that the nature circular horn
Formula phase-reversing tube is connected by curved conduit with tank of raising one's voice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810149898.7A CN108200513A (en) | 2018-02-13 | 2018-02-13 | A kind of nature circular horn formula paraphase structure mini speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810149898.7A CN108200513A (en) | 2018-02-13 | 2018-02-13 | A kind of nature circular horn formula paraphase structure mini speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108200513A true CN108200513A (en) | 2018-06-22 |
Family
ID=62593485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810149898.7A Pending CN108200513A (en) | 2018-02-13 | 2018-02-13 | A kind of nature circular horn formula paraphase structure mini speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108200513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784786A (en) * | 2019-09-27 | 2020-02-11 | 深圳市火乐科技发展有限公司 | Common-wall phase-reversal sound box and micro projector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08307984A (en) * | 1995-05-01 | 1996-11-22 | Yuji Kamijo | Linkage phase reverse type and spiral driving type speaker |
| CN2857386Y (en) * | 2005-11-22 | 2007-01-10 | 深圳创维－Rgb电子有限公司 | Super-thin Bass-reflex cabinet |
| CN101765039A (en) * | 2009-11-19 | 2010-06-30 | 王强 | Wine bucket shaped loudspeaker box |
| CN105245983A (en) * | 2015-10-21 | 2016-01-13 | 山东共达电声股份有限公司 | Miniature bass reflex type loudspeaker system and terminal device |
| CN205195944U (en) * | 2015-12-01 | 2016-04-27 | 安克科技有限公司 | Inverted tube and phase inverted cabinet |
| CN206585739U (en) * | 2017-03-20 | 2017-10-24 | 微鲸科技有限公司 | A kind of bass boosting sound box |
-
2018
- 2018-02-13 CN CN201810149898.7A patent/CN108200513A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08307984A (en) * | 1995-05-01 | 1996-11-22 | Yuji Kamijo | Linkage phase reverse type and spiral driving type speaker |
| CN2857386Y (en) * | 2005-11-22 | 2007-01-10 | 深圳创维－Rgb电子有限公司 | Super-thin Bass-reflex cabinet |
| CN101765039A (en) * | 2009-11-19 | 2010-06-30 | 王强 | Wine bucket shaped loudspeaker box |
| CN105245983A (en) * | 2015-10-21 | 2016-01-13 | 山东共达电声股份有限公司 | Miniature bass reflex type loudspeaker system and terminal device |
| CN205195944U (en) * | 2015-12-01 | 2016-04-27 | 安克科技有限公司 | Inverted tube and phase inverted cabinet |
| CN206585739U (en) * | 2017-03-20 | 2017-10-24 | 微鲸科技有限公司 | A kind of bass boosting sound box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784786A (en) * | 2019-09-27 | 2020-02-11 | 深圳市火乐科技发展有限公司 | Common-wall phase-reversal sound box and micro projector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7218747B2 (en) | Externally ported loudspeaker enclosure | |
| CN202652498U (en) | Miniature telescoping tube sound box of enhancing passive diaphragm vibration | |
| CN205847524U (en) | Loudspeaker enclosure | |
| CN110972041A (en) | Single-magnetic double-sound-path coaxial loudspeaker | |
| US11381905B2 (en) | Passive acoustic meta material audio amplifier and the method to make the same | |
| CN206585698U (en) | Loudspeaker enclosure | |
| CN108462929A (en) | Loud speaker module and electronic equipment | |
| US10616679B2 (en) | Passive acoustic meta material audio amplifier and the method to make the same | |
| CN208112944U (en) | Loudspeaker mould group and electronic equipment | |
| US20140256218A1 (en) | Kazoo devices producing a pleasing musical sound | |
| CN208836355U (en) | A kind of hand microphone speaker | |
| CN108200513A (en) | A kind of nature circular horn formula paraphase structure mini speaker | |
| CN208940169U (en) | Earphone and headphone unit | |
| CN207235111U (en) | A kind of annular speaker | |
| JP5354295B2 (en) | Sound collector | |
| CN206136245U (en) | Inverse -phase type voice box | |
| CN109151643A (en) | Earphone and headphone unit | |
| CN107613437A (en) | A kind of annular speaker | |
| CN109951778A (en) | The installation that liquidates of full frequency speaker and loudspeaker in cabinet | |
| CN208015988U (en) | Electronic equipment | |
| CN209930504U (en) | Annular dust collector for loudspeaker outer diaphragm | |
| CN208094785U (en) | A kind of all-metal earphone horn | |
| CN214901277U (en) | Portable sound production device | |
| US9288560B2 (en) | Branched acoustic device | |
| CN101951543A (en) | Phone sound speaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |