CN110381414A - High fidelity speaker with high acoustic resistance cabinet and inductance capacitance buffer circuit - Google Patents
High fidelity speaker with high acoustic resistance cabinet and inductance capacitance buffer circuit Download PDFInfo
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- CN110381414A CN110381414A CN201910737385.2A CN201910737385A CN110381414A CN 110381414 A CN110381414 A CN 110381414A CN 201910737385 A CN201910737385 A CN 201910737385A CN 110381414 A CN110381414 A CN 110381414A
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- speaker
- acoustic resistance
- cabinet
- loudspeaker
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- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention relates to production high fidelity speakers, different from the high fidelity speaker of traditional sound technique, the present invention has abandoned bass used in traditional technology, middle bass and high pitch loudspeaker, the full frequency speaker provided using two by patent 201910306267.6 and an electromagnetic damping braking pure woofer of the high acoustic resistance in multithread hole provided by patent ZL201610835543.4, take the mounting means that liquidates, furthermore, the present invention has abandoned the frequency divider in traditional technology, and is replaced with inductance capacitance buffer circuit.Another innovation of the invention is to increase the acoustic resistance of sound box to the maximum extent.
Description
Technical field
The present invention relates to seriations to make high-grade (Hi Fi and Hi End) speaker, and non-mass is general common
Speaker.The electric property of objective determination speaker and the auditory effect of subjective assessment speaker.
The range of sounds of human ear audible is 20HZ-20KHZ.It is generally divided into bass two sections: 20HZ-40HZ, 40HZ-80HZ；In
Sound three sections: 80HZ-160HZ, 160HZ-1.2KHZ, 1.2KHZ-2.5KHZ；High pitch two sections: 2.5KHZ-5KHZ, 5KHZ-20KHZ。
The electric property of speaker is by two curve determinations: 1) frequency response curve；2) high, in and low frequency total harmonic distortion
Curve.
The frequency response curve of common speaker is subject to -3db lower-frequency limit f0Generally in 50HZMore than, front end is in 10KHZ
Hereinafter, and in 2.5KHZ-20KHZBetween have apparent peaks and troughs；
The lower-frequency limit f of Hi Fi grade speaker0Generally in 40HZLeft and right, front end is in 20KHZLeft and right, and
2.5KHZ-20KHZBetween without apparent peaks and troughs；
The lower-frequency limit f of Hi End speaker020H can be arrivedZ, front end can arrive 300KHZ, and in 2.5KHZ-20KHZBetween
Smooth transition；
The total harmonic distortion of common speaker, it is high, in and low frequency all it is obvious that the most serious with low frequency end and front end.
Hi Fi speaker is distorted smaller, low frequency end and front end low distortion in Mid Frequency；
Hi End speaker can be disregarded in Mid Frequency distortion, and low frequency end is distorted very little and front end low distortion.
The subjective assessment of speaker has diversity, but generally speaking also some something in commons.
The requirement most basic to Hi Fi grade speaker be it is high, in and bass balance, in short, high pitch sweet tea, middle accuracy in pitch, low
Sound strength, which is also that the round and smooth thin girl of high pitch is penetrating, middle pitch completely has thickness, and bass is powerful thick and solid has extension to change.It is most suitable for Gu
Allusion quotation music can show the cultural connotation of classical music, this is the feature of English, moral and Northern Europe Hi Fi speaker, the Hi Fi sound in the U.S.
Case low frequency impact power is strong, there is the imposing manner being packed, but it is not so right for playing classical music.
Hi End speaker requires voice completely to protrude, and low frequency dive is good, restores bass change procedure；Intermediate frequency is clear, retains
Sound details abundant, super musical instrument details abundant, the musical instrument separation of superelevation and true knot picture and telepresenc and grand sound
?.
Background technique
Speaker is made of three parts: loudspeaker unit, each loudspeaker of connection electronic component circuit, cabinet.?
The high-grade speaker that seriation is made in traditional sound technique has specific requirement, loudspeaker point to these three component parts
Unit two (middle bass, high pitch) and Unit three (bass, middle pitch, high pitch).No matter Unit two or Unit three, require every loudspeaking
Device is the loudspeaker of Hi Fi grade, is also, the Precision Machining production for selecting rare, expensive advanced material and equipment complicated
Loudspeaker, for example, warm magnet, holohedral symmetry magnetic circuit, the superior pure iron column of high-quality magnetic conduction T-type, glass grain in special focusing magnet ring, superelevation
Sub-folder layer vibration basin, extended pattern centring disk, high loss fatigue-resisting rubber hang side etc..It is not difficult to find out, high-grade loudspeaker unit
It also is high cost loudspeaker.The electronic component circuit of each loudspeaker is connected frequency divider, connects crying for two unit speakers
Two divided-frequency, three unit speakers of connection are three frequency division；Cabinet is another important component for making high-grade speaker, case
Body has closed, inverted phase type and horn-type three categories other, and the quality of Hi Fi speaker is heavily dependent on bass (middle bass)
The cooperation of loudspeaker and cabinet, the bass of Hi Fi grade do not require nothing more than the bore of woofer not less than 6.5 inches, and
It is required that cabinet is the very large and thick and heavy console mode cabinet of scale, the scale of cabinet is very large space can have it is sufficiently low with it is corresponding
The standing wave of resonant frequency, the thick and heavy sound dye and box house that can exclude cabinet of cabinet that woofer matches.So energy
Enough deserving to be called Fi grades of Hi of speaker and determining most of is console mode, only a small number of famous-object bookshelf-type speakers can calculate low side Hi Fi or
Entry level Hi Fi.
The high-grade speaker of seriation of the present invention is also made of three parts: loudspeaker unit connects loudspeaker
Electronic component circuit and cabinet, with the speaker of traditional sound technique except that loudspeaker unit only has three loudspeakers, two
Branch full frequency speaker, the coaxial full-range loudspeaker in this not traditional sound technique applied by me, application No. is
The novel full frequency loudspeaker that 201910306267.6 patent of invention provides, in addition it is more to be known as electromagnetic damping braking for a loudspeaker
The pure woofer of the high acoustic resistance of discharge orifice, and I applies, the patent of invention of ZL201610865543.4 that has authorized provides
Extraordinary loudspeaker, connects the divider circuit of the not traditional sound technique of electronic component circuit of loudspeaker, and the present invention mentions
The inductance capacitance buffer circuit of confession；Part III cabinet is also not the very large thick and heavy console of traditional sound technique mesoscale
Body, but high acoustic resistance cabinet provided by the invention.According to the patent No. 201910306267.6 provide the mounting technique that liquidates, two
Full frequency speaker liquidates respectively is mounted on left side and right side and the matched modeling of length that will support two loudspeaker magnetic heads of cabinet
Skeleton of the expects pipe as inductance coil.The front lower section installation electromagnetic damping of cabinet brakes the pure bass loudspeaker of the high acoustic resistance in multithread hole
Device, this is the extraordinary loudspeaker that a full frequency speaker back side sound stream by the installation that liquidates pushes.
Hi Fi in high fidelity speaker and traditional sound technique with high acoustic resistance cabinet and inductance capacitance buffer circuit
Speaker compares, it is seen that speaker of the invention has following innovation:
1, replace traditional bass, middle bass and high pitch loudspeaker with full frequency speaker, although using patent
Bass and medium and low spectrum loudspeaker can be transform as full frequency speaker by 201910306267.6 technologies provided, but traditional height
Sound loudspeaker is then abandoned completely；
2, installation electromagnetic damping in cabinet front lower section brakes the pure woofer of the high acoustic resistance in multithread hole, enhances under bass
Limit and bass quality, this loudspeaker pushed with box house sound stream is that do not have in traditional sound technique；
3, the cabinet of the speaker of Hi Fi grade must be the very large thick and heavy landing case of volume in traditional sound technique, this
The speaker of invention using liquidating due to installing and having used electromagnetic damping to brake the pure woofer of the high acoustic resistance in multithread hole, Hi Fi
The cabinet of grade speaker can drop to bookshelf-type, and entry level Hi Fi can be down to Table top type；
4, replace divider circuit with inductance capacitance buffer circuit.The frequency divider to discard tradition in sound technique, from however
Many shortcomings of frequency divider technology are so abandoned, this is innovation of the invention；
5, high acoustic resistance cabinet is also another innovation of the invention
What is high acoustic resistance cabinet? why not same have with the cabinet of traditional sound technique?,
It is initially noted that having sealed, inverted phase type and horn-type in traditional sound technique, Hi Fi grade speaker is most absolutely
Number is that inverted phase type lands case, and special occasions also has a bugle case, and inverted phase type cabinet has a phase-reversing tube and paraphase hole, loudspeaker (bass or
Middle bass) vibration when, loudspeaker front vibration basin do not have resistant free vibration, the back side of speaker cones is the interior of cabinet
Portion, since box house cavity is very large and is provided with venthole (paraphase pore), it is also free that loudspeaker vibrates backward, though
Right cabinet has one piece of acoustical cotton and phase-reversing tube also to fill acoustical cotton, this helps out, and does not have shadow to free vibration backward
It rings.In other words, loudspeaker is not have resistant with vibration backward forward in the conventional technology, and the sound air-flow of generation does not have yet
Have by resistance, be also, traditional cabinet is not no acoustic resistance, sound stream can forward, Free propagation backward.
According to Principles of Acoustics, it is presently believed that reduce the non-linear distortion of loudspeaker, realize it is high, in and low frequency balance
Optimum method is that loudspeaker is allowed to encounter very big resistance in communication process with sound stream backward forward, and this point is traditional sound equipment skill
Nobody recognizes in art！It also is that traditional sound technique is ignorant.
How the high acoustic resistance of cabinet is realized? present invention contemplates that thering is a loudspeaker to have in three loudspeakers used
There is high acoustic resistance, therefore other two full frequency speakers for not having high acoustic resistance must transform the loudspeaker with high acoustic resistance as,
Method is 1) to fill acoustical cotton at the back side of full frequency speaker vibration basin and the gap of bracket；2) take a diameter slightly larger than outside loudspeaker
The plastic hoop of diameter and dome shape with sieve pore are shaken basin, and the outer ring of dome shape vibration basin is sticked on ring, then in loudspeaker outer layer
Acoustical cotton is filled between vibration basin and new spherical surface vibration basin with sieve pore and covers loudspeaker ring is fixed on outside cabinet with screw.
Although electromagnetic damping brakes the pure woofer of the high acoustic resistance in multithread hole and carries acoustic resistance, practice have shown that its acoustic resistance must also
It is promoted, therefore, above-mentioned the same reinforcement acoustic resistance measure is also taken it finally to use to maximumlly increase the acoustic resistance of cabinet
Acoustical cotton, which fills up box house remaining space to tamp, does not stay some gaps.During in addition, the spherical surface dress with sieve pore shakes, basin be can be
The common material of woofer is also possible to sheet metal.
The medium and low spectrum loudspeaker using same domestic power amplifier and domestic mean quality is imagined, when using traditional sound equipment skill
Art, then being that sound is not clean enough first when one group of music signal reaches listener, the sound stream that followed by traditional speaker generates does not have
Having by resistance, the note of each frequency band reaches simultaneously, for most human ears, the sound that cannot differentiate while reach
Details, sound is unintelligible, obscures, but if using high acoustic resistance speaker of the invention, sound is not completely sound news first
Number jagged, the digit pulse signal being widely present from modern society.But these pass through loudly with jagged sound stream
When hindering cabinet, the whole story, these burrs can be polished by filling up the acoustical cotton tamped, thus sound becomes completely, secondly, by
In the sound absorption cotton of vibration basin and filling of the multilayer with sieve pore therebetween, sound stream is repeatedly divided and along the gap for making sound-absorbing cotton fiber
It propagates, so different frequency, when the note of varying strength reaches listener, there is small difference in the time, that is, after having before having, therefore,
The all distinguishable sound details of most human ears, in other words, under equal conditions, high acoustic resistance speaker of the invention is better than traditional sound
Case.
When strong air flow is sprayed from sieve pore, if undesirable noise can be generated?
There are two groups for sound equipment circle: the recording engineer of recording studio work, this professional colony number is seldom, but has very greatly
Language power, another group are the numerous music-lovers and enthusiast of number, the former criterion is sound genuineness, are pursued without mistake
Genuine effect；The latter with pleasing to the ear for principle, no longer be distorted whether！What the conflict of two groups was most concentrated shows to gallbladder machine function
The evaluation put, the former says that the distortion of gallbladder machine is serious, and the latter thinks that gallbladder machine sound is dulect and fanatic chases after stick！
According to acoustic theory, fundamental tone carries most energy of sound, and overtone (the sum of all higher hamonic waves) is only
Carry the fraction energy in sound.The fundamental tone for the sound that can be appreciated concentrates on 20HZ-2.5KHZThis section of range, and overtone then divides
Cloth is in 2.5KHZ-20KHZThis section vast range, and the energy of overtone is very faint.Since frequency band is wide, amplitude very little, even if
It is that HiFi high pitch loudspeaker is also difficult genuinely to restore this section of overtone, gallbladder machine power amplifier is slight this section of overtone domain
Distortion compensates for this shortcoming, produces abundant harmonic wave, this is therefore the reason of gallbladder machine is chased after stick by enthusiast is artificially pursued
In 2.5KHZ-20KHZThe low distortion of range is the wuwa of the interesting to listen to HiFi audio of manufacture.
In speaker of the present invention, when strong sound stream is spouting from the sieve pore of sheet metal vibration basin, cause
2.5KHZ-20KHZThe low distortion of this section of range produces overtone extremely abundant.
Another innovation of the invention is inductance capacitance buffer circuit, due to the middle bass and tweeter of the speaker that discards tradition
Device, the novel full frequency loudspeaker provided using patent of invention 201910306267.6, frequency range f0-20KHZ, f0?
20HZ-40HZBetween, therefore, speaker of the invention does not need frequency divider, in view of two full frequency speakers are in parallel and the installation that liquidates,
Thus there is biggish counter electromotive force, in order to improve the braking effect of amplifier, the present invention is in loudspeaker in parallel and amplification
Device output end has installed additional by the buffer circuit of inductance capacitance parallel connection, it is therefore an objective to make the back-emf of amplifier brake voltage and loudspeaker
In inductance capacitance circuit and.
Summary of the invention
One, inductance capacitance buffer circuit
To support the plastic tube of two-loudspeaker magnetic head as the skeleton of coiling inductance coil in the installation that liquidates, sub-thread non-oxidation
Big capacity electrolyte capacitor and high-quality dielectric capacitance in parallel can be used in copper wire, the high-quality fine enamelled wire of multiply (less than 6), capacitor.Electricity
Feel the power of the line footpath and length and the size of capacitance of coil copper wire depending on speaker.
The inductance and capacitor being fixed between two loudspeaker magnetic heads compose in parallel buffer circuit.
The buffer circuit of shunt inductance, capacitor is connected with two full frequency speakers in parallel.
Two, high acoustic resistance cabinet
Acoustical cotton is filled first between the vibration basin back side and bracket of two full frequency speakers and is liquidated is mounted on cabinet,
Inductance capacitance installation and wiring are completed, box house remaining space is filled up with acoustical cotton and is tamped.Then it is braked in electromagnetic damping
Acoustical cotton is filled between the vibration basin back side and bracket of the pure woofer of the high acoustic resistance in multithread hole and is fixed on cabinet；
Three diameters are finally taken to glue three top dome shape vibration basins with sieve pore respectively slightly larger than the plastic ring of loudspeaker outer diameter
On plastic ring, and after three loudspeaker outer layers and with acoustical cotton is filled between sieve pore vibration basin, loudspeaker is covered respectively and uses spiral shell
Nail is fixed on outside cabinet.
The vibration basin material for covering full frequency speaker can be low speaker cones material in general, be also possible to metal foil
Piece, the vibration basin for covering the pure woofer of the high acoustic resistance in multithread hole do not have to sheet metal.Portion covers the vibration basin of loudspeaker outside the enclosure
Number is no more than two layers.
Specific embodiment
Online shopping is second-hand to tear the preferable 4 cun of automobile full frequency speakers of vehicle quality open, after removing small high pitch, bracket and frequency dividing capacitor,
Novel full frequency loudspeaker needed for the invention of its improvement cost is separately taken one by the method that patent 201910306267.6 provides
It is high to transform electromagnetic damping braking multithread hole as by the method that patent of invention ZL201610835543.4 is provided for common 4 cun of loudspeakers
The pure woofer of acoustic resistance；
4 gangs of 0.2mm of inductance coil, the enameled wire coiling of long 10M, 470 microfarad of electrolytic capacitor and a 10 microfarad media
Compositions inductance capacitance buffer circuit in parallel with inductance coil again after capacitor is in parallel, after two full frequency speakers parallel connections with inductance capacitance
Buffer circuit series connection, then connect with the positive and negative binding post of speaker respectively.
Acoustical cotton is filled between the vibration basin back side and bracket of three loudspeakers and is incited somebody to action after box house fills up and tamps acoustical cotton
Three loudspeakers are mounted on cabinet.
Three dome shape papery vibration basins with sieve pore are bonded respectively on the plastic hoop of diameter 12cm, after filling acoustical cotton, point
Three loudspeakers are not covered and are fixed on outside cabinet.
20 centimetres X13 centimetres X25 centimetres of cabinet, belong to entry level Hi Fi speaker.
Claims (2)
1. a kind of high acoustic resistance cabinet, it is characterised in that: fill acoustical cotton to the maximum extent to box house and portion is pacified outside the enclosure
The vibration basin cover of high acoustic resistance, sieve pore is filled, the specific practice is as follows:
(1) at the vibration basin back side and bracket of two full frequency speakers and the electromagnetic damping braking pure woofer of the high acoustic resistance in multithread hole
Between fill acoustical cotton；
(2) it is filled up with acoustical cotton and tamps box house remaining space；
(3) the vibration basin and acoustical cotton with diameter greater than the top dome shape type with sieve pore of loudspeaker outer cover three loudspeakers respectively
And it is fixed on the outside of cabinet, most two layers；
(4) material with sieve pore top dome shape type vibration basin for covering full frequency speaker can be traditional low basin and be also possible to metal foil
Piece vibration basin, but covering the electromagnetic damping braking pure woofer of the high acoustic resistance in multithread hole can only be traditional cone.
2. a kind of inductance capacitance buffer circuit, the tool practice is as follows:
(1) non-oxidation copper single cord or the high-quality enameled wire coiling inductance of multiply are used, the skeleton of inductance coil is to support the installation that liquidates
The plastic tube of the magnetic head of two loudspeakers；
(2) power decision is born by speaker in the length of line and section, and the number of share of stock of multiply enameled wire is not more than 6；
(3) capacitor is in parallel with electrolytic capacitor by dielectric capacitance；
(4) then inductance composition buffer circuit in parallel with capacitor is connected with two full frequency speakers in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737385.2A CN110381414A (en) | 2019-08-09 | 2019-08-09 | High fidelity speaker with high acoustic resistance cabinet and inductance capacitance buffer circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737385.2A CN110381414A (en) | 2019-08-09 | 2019-08-09 | High fidelity speaker with high acoustic resistance cabinet and inductance capacitance buffer circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110381414A true CN110381414A (en) | 2019-10-25 |
Family
ID=68258895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910737385.2A Pending CN110381414A (en) | 2019-08-09 | 2019-08-09 | High fidelity speaker with high acoustic resistance cabinet and inductance capacitance buffer circuit |
Country Status (1)
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Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB512610A (en) * | 1938-03-03 | 1939-09-21 | William West | Improvements in or relating to loud speakers |
| GB1479477A (en) * | 1973-08-04 | 1977-07-13 | Tsukamoto K | High-fidelity moving-coil loudspeaker |
| JPH08228393A (en) * | 1995-02-22 | 1996-09-03 | Matsushita Electric Ind Co Ltd | Double cone speaker |
| JPH09284893A (en) * | 1996-04-19 | 1997-10-31 | Sony Corp | Speaker equipment |
| US20020018576A1 (en) * | 2000-08-10 | 2002-02-14 | Yoshiharu Shima | Structure around a speaker unit and applied electric or electronic apparatus thereof |
| CN2539372Y (en) * | 2002-04-27 | 2003-03-05 | 蓬莱市华泰电器厂 | High-pitch loudspeaker |
| JP2005197849A (en) * | 2003-12-27 | 2005-07-21 | Yoshio Kaneko | Speaker unit |
| CN101677424A (en) * | 2008-09-16 | 2010-03-24 | 陈国富 | High and low frequency end compensating high-fidelity sound box without frequency divider |
| CN101765039A (en) * | 2009-11-19 | 2010-06-30 | 王强 | Wine bucket shaped loudspeaker box |
| CN202514062U (en) * | 2012-04-23 | 2012-10-31 | 宁波市鄞州亚威电子有限公司 | Dome sound cone |
| CN202696863U (en) * | 2012-02-13 | 2013-01-23 | 广州市嘉声音响设备有限公司 | Novel acoustic filter |
| CN203734816U (en) * | 2014-01-27 | 2014-07-23 | 胡震宇 | Electronic apparatus built-in sound box |
| CN205532784U (en) * | 2016-04-12 | 2016-08-31 | 浙江方宏空调设备有限公司 | Impedance combined type automobile muffler |
| CN205946145U (en) * | 2016-06-25 | 2017-02-08 | 季劲翔 | Collection sound formula flagship speaker |
| CN106454652A (en) * | 2016-09-19 | 2017-02-22 | 陈国富 | Electromagnetic damping braking multi-orifice pure bass loudspeaker with high acoustic resistance |
| CN206302540U (en) * | 2016-10-08 | 2017-07-04 | 厦门大家唱电子科技有限公司 | A kind of console mode Karaoke audio amplifier |
| WO2018050718A1 (en) * | 2016-09-14 | 2018-03-22 | Ask Industries Societa' Per Azioni | Loudspeaker system for vehicle. |
| CN208940204U (en) * | 2018-11-20 | 2019-06-04 | 石河子市天艺星光演出设备租赁有限公司 | A kind of speaker |
| CN109951778A (en) * | 2019-04-16 | 2019-06-28 | 陈国富 | The installation that liquidates of full frequency speaker and loudspeaker in cabinet |
-
2019
- 2019-08-09 CN CN201910737385.2A patent/CN110381414A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB512610A (en) * | 1938-03-03 | 1939-09-21 | William West | Improvements in or relating to loud speakers |
| GB1479477A (en) * | 1973-08-04 | 1977-07-13 | Tsukamoto K | High-fidelity moving-coil loudspeaker |
| JPH08228393A (en) * | 1995-02-22 | 1996-09-03 | Matsushita Electric Ind Co Ltd | Double cone speaker |
| JPH09284893A (en) * | 1996-04-19 | 1997-10-31 | Sony Corp | Speaker equipment |
| US20020018576A1 (en) * | 2000-08-10 | 2002-02-14 | Yoshiharu Shima | Structure around a speaker unit and applied electric or electronic apparatus thereof |
| CN2539372Y (en) * | 2002-04-27 | 2003-03-05 | 蓬莱市华泰电器厂 | High-pitch loudspeaker |
| JP2005197849A (en) * | 2003-12-27 | 2005-07-21 | Yoshio Kaneko | Speaker unit |
| CN101677424A (en) * | 2008-09-16 | 2010-03-24 | 陈国富 | High and low frequency end compensating high-fidelity sound box without frequency divider |
| CN101765039A (en) * | 2009-11-19 | 2010-06-30 | 王强 | Wine bucket shaped loudspeaker box |
| CN202696863U (en) * | 2012-02-13 | 2013-01-23 | 广州市嘉声音响设备有限公司 | Novel acoustic filter |
| CN202514062U (en) * | 2012-04-23 | 2012-10-31 | 宁波市鄞州亚威电子有限公司 | Dome sound cone |
| CN203734816U (en) * | 2014-01-27 | 2014-07-23 | 胡震宇 | Electronic apparatus built-in sound box |
| CN205532784U (en) * | 2016-04-12 | 2016-08-31 | 浙江方宏空调设备有限公司 | Impedance combined type automobile muffler |
| CN205946145U (en) * | 2016-06-25 | 2017-02-08 | 季劲翔 | Collection sound formula flagship speaker |
| WO2018050718A1 (en) * | 2016-09-14 | 2018-03-22 | Ask Industries Societa' Per Azioni | Loudspeaker system for vehicle. |
| CN106454652A (en) * | 2016-09-19 | 2017-02-22 | 陈国富 | Electromagnetic damping braking multi-orifice pure bass loudspeaker with high acoustic resistance |
| CN206302540U (en) * | 2016-10-08 | 2017-07-04 | 厦门大家唱电子科技有限公司 | A kind of console mode Karaoke audio amplifier |
| CN208940204U (en) * | 2018-11-20 | 2019-06-04 | 石河子市天艺星光演出设备租赁有限公司 | A kind of speaker |
| CN109951778A (en) * | 2019-04-16 | 2019-06-28 | 陈国富 | The installation that liquidates of full frequency speaker and loudspeaker in cabinet |
Non-Patent Citations (5)
| Title |
|---|
| 张达: ""箱体内部吸音的处理和对特性的影响"", 《实用影音技术》 * |
| 成辞: ""制作混叠式的声阻音箱"", 《电子制作》 * |
| 释又麟: "《家用音箱器材与调音技巧》", 31 May 1998 * |
| 陈俊林: "《音箱设计》", 31 March 1980 * |
| 陈锦龙: "一款音箱的设计与制作", 《家庭电子》 * |
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Application publication date: 20191025 |
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| WD01 | Invention patent application deemed withdrawn after publication |