CN103826183B - A kind of band general formula woofer and its method of adjustment - Google Patents
A kind of band general formula woofer and its method of adjustment Download PDFInfo
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- CN103826183B CN103826183B CN201410061605.1A CN201410061605A CN103826183B CN 103826183 B CN103826183 B CN 103826183B CN 201410061605 A CN201410061605 A CN 201410061605A CN 103826183 B CN103826183 B CN 103826183B
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Abstract
The present invention relates to electroacoustic techniques fields, more particularly to a kind of band general formula woofer and its method of adjustment, it includes woofer, there is at least one horizontally disposed partition in the woofer, the partition is equipped at least one woofer, above the partition and the woofer tank wall of lower section is equipped with low-frequency resonator, and the woofer is divided into the low frequency bass speaker of top and lower section；The woofer is equipped with pressure regulating chamber, and the low-frequency resonator outer cross section connects into an acoustic resonance access with the pressure regulating chamber respectively, and pressure regulating chamber is equipped with damping hole, is equipped with acoustic(al)absorbent in pressure regulating chamber；Wherein, can according to acoustic characteristic needs, increase woofer by and combinations thereof in a manner of；By adjusting damping hole and the gross area of acoustic(al)absorbent, the damping value and Q value of speaker are adjusted separately.The present invention improves the accuracy and flexibility ratio that acoustical behavior and its quality are handled with general formula woofer low frequency, and speaker volume is smaller, escapable cost.
Description
Technical field
The present invention relates to electroacoustic techniques field more particularly to a kind of band general formula woofer and its methods of adjustment.
Background technique
From sound box acoustic construction, nineteen twenty-four occur back chamber open type speaker so far, current speaker acoustics
Structure application mainly has closed and open type two major classes, and closed speaker type is less, mainly there is air-cushion type and push-pull type two
Kind.Open type speaker type is more, such as inverted phase type, two-stage inverted phase type, empty cone formula, labyrinth type, band general formula, duct type, rear number
Cartridge type, 1/4 wavelength loaded type, transmission wire type, Cole are paused formula etc..
The common feature of open type speaker, exactly by being that driving makes case cavity space gas and resonator (commonly referred to as with loudspeaker
For phase-reversing tube) resonance coupling, speaker drive energy is become into case chamber resonant energy to the maximum extent, to improve low-frequency sound pressure
And widen low frequency response.Since case chamber resonant energy increases the load of the diaphragm of loudspeaker, to its vibrating diaphragm resonance band (also referred to as
Resonant frequency) substantially vibration generate inhibition, to reduce loudspeaker induced potential, make distortion reduction, also therefore can be improved
The power of woofer bears volume.
It wherein, is a kind of speaker of special disposal frequency acoustic technology with general formula speaker, the mode of this speaker variation is greatly
There are three types of on body: one is loudspeaker to be placed among the connected closed speaker of approximation and phase inverted cabinet, making loudspeaking
One face of device vibrating diaphragm is moved according to closed speaker rule, another face of the diaphragm of loudspeaker is moved according to phase inverted cabinet rule,
Only one opening chamber of this band general formula speaker；Second is that loudspeaker is placed in two connected approximate phase inverted cabinets
Centre, there are two the chamber that is open, the phase inverted cabinet chamber of one of approximation upper frequency utilizes the front of the diaphragm of loudspeaker
The phase inverted cabinet chamber of (or back side) driving, another approximate lower frequency is driven using the back side (or front) of the diaphragm of loudspeaker
It is dynamic, after two chambers generate different resonance frequency superpositions through resonator, band logical of the low frequency response width compared with first way
Speaker wants wide, and also wider than the frequency response width that inverted loudspeaker box and labyrinth type speaker low frequency are handled, BOES company, the U.S. is sent out
Bright air mass streaming speaker just belongs to this band general formula speaker；The third is that there are three the band general formula speakers of opening chamber for tool, i.e.,
In above-mentioned tool there are two an opening chamber is superimposed again among opening chamber, except that being in this three opening chambers
The identical loudspeaker of the opening chamber at both ends one electric property of each device, the acoustic characteristic of two chambers must be consistent, and two
There are two certain one sides of the corresponding diaphragm of loudspeaker of chamber loudspeaker inside chamber among chamber, and utilize driving both ends case
The one face sounding of the diaphragm of loudspeaker of room, on cabinet baffle with the useful resonance in low-frequency resonance of one sampling device of both ends chamber
Device, for this band general formula speaker since loudspeaker doubles, the resonance space for handling low-frequency resonant increases one third, so,
Low frequency efficiency and responsive bandwidth are higher than aforementioned two kinds of bands general formula speaker, also above closed speaker and phase inverted cabinet etc.,
The disadvantage is that needing biggish tank-volumes.
Although current band general formula speaker comprehensive advantage on low frequency processing technique is the most obvious, its acoustic construction is still deposited
In some defects: first, from acoustic construction, current band general formula speaker can be regarded as one by case chamber resonance space,
The sounding body that three spaces such as lumen (resonator) resonance space and free harmonic vibration space (any space outside cabinet) are coupled, i.e.,
Be atmospheric density under the same conditions, due to free space (such as room, open air) volume in three spaces be can not people
For setting, cause case cavity space volume that must calculate according to certain set formula, as a result, tank-volumes size that is, case chamber
Space size variation is inflexible, significantly limits the application range with general formula speaker, such as closely listens desktop currently popular
Recording that speaker and special occasions use, production monitor speaker are difficult to the biggish band general formula speaker of current volume bringing up to table
Face；Second, because it must calculate case chamber volume according to certain set formula, the hand of adjustment variation is lacked to the processing of low frequency tone color
Section, so that it be made to be restricted the satisfaction of speaker low frequency tone color diversified demand；Third is exactly in the tank-volumes scale of construction
There is also that smaller cannot limit to, this there is also some problems the saving of human resource；4th, due to free space air pressure
It is uncontrollable, also result in case chamber and resonator cavity space pressure control be limited, how to make the diaphragm of loudspeaker case chamber, lumen, from
By more fully vibrating in the air pressure coupling of resonance space, still lack corresponding solution.
Summary of the invention
The problem to be solved in the present invention is that existing band general formula woofer tank-volumes are bigger than normal, and cabinet air velocity is not
Controllably, it is difficult to which the defects of meeting bass box tone color and its acoustical power diversified demand provides a kind of band general formula woofer, no
The accuracy and flexibility ratio of speaker low frequency processing acoustical behavior and its quality are improved only, and speaker volume can reduce, it can
Save cost and resource.
The method with general formula woofer is adjusted the present invention also provides a kind of.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of band general formula woofer comprising bass sound
Case, the woofer is interior to have at least one horizontally disposed partition, and the partition is equipped at least one woofer,
Above the partition and the woofer tank wall of lower section is equipped with low-frequency resonator, by the woofer be divided into top with
And the low frequency bass speaker of lower section；The woofer be equipped with pressure regulating chamber, the low-frequency resonator outer cross section respectively with the tune
Pressure storehouse connects into an acoustic resonance access.
Further improvement to above-mentioned technical proposal is that the woofer tank wall above the partition is equipped with compared with low-and high-frequency
Resonator, the woofer cabinet below partition are equipped with lower low-frequency resonator, and the woofer is divided into top
Compared with low-and high-frequency woofer and the lower low frequency bass speaker of lower section.
Further improvement to above-mentioned technical proposal is that acoustic(al)absorbent is equipped in the pressure regulating chamber, and the pressure regulating chamber is equipped with
Damping hole.
Preferably, the damping hole has multiple, and horizontal symmetrical is arranged on the pressure regulating chamber.
Preferably, the partition quantity is one, and a woofer, compositing monomer formula band logical is arranged on the partition
Woofer.
Preferably, the partition quantity is one, equidirectional on the partition that at least two woofers are set side by side,
Form complex formula band logical woofer.
Preferably, the partition quantity is one, and the low frequency that a symmetrical reverse parallel connection is respectively arranged in the partition up and down is raised
Sound device forms push-pull type band logical woofer.
Preferably, the partition quantity is one, the partition at least two pairs of reverse parallel connections symmetrical above and below setting up and down
Woofer forms complex push-pull type band logical woofer.
Preferably, in the woofer equipped with horizontal first partition and below first partition second every
Plate is equipped with lower low frequency bass speaker, sets on the tank wall of lower low frequency bass speaker between the first partition and second partition
There is more range low frequency resonator, the first partition top is each provided with symmetrical above and below one or more with the second partition bottom
Woofer forms march-past band logical woofer.
A method of adjust it is described with general formula woofer damp size, be by adjusting the damping on the pressure regulating chamber
The size of hole total open area realizes that damping hole total open area is bigger, the damping of entire acoustic path is smaller, air flowing
Viscosity it is fewer；Damping hole total open area is smaller, and the damping of entire acoustic path is bigger, and the viscosity of air flowing is got over
It is more.
A method of it adjusts described with general formula woofer Q value size, is by adjusting acoustic(al)absorbent in the pressure regulating chamber
Volume size realize that acoustic(al)absorbent volume is bigger, the Q value of speaker is higher, the viscosity of air flowing is bigger；Acoustic(al)absorbent volume
Smaller, the Q value of speaker is lower, and the viscosity of air flowing is smaller.
It is mutually coordinated with Q value by damping, the air stream kinematic viscosity optimization of the entire acoustic path of speaker may be implemented.
Band general formula woofer of the present invention, beneficial effect compared with prior art is:
The present invention mainly loads a multi-functional acoustics pressure regulating chamber in band general formula woofer opening, sets in pressure regulating chamber
There are several damping holes or device there are several sound-absorbing materials, forms non-fully enclosure space, be equivalent in speaker resonator and cabinet
It is provided with the spatial transition or medium-space of the interaction of an air between outer free space, and utilizes its transition or the ground of intermediary
Position, integrated by carrying out variation or the adjustment of damping characteristic or Q value characteristic to self space case chamber, lumen and free space it
Between sound coupled characteristic constitute the difference with itself acoustic characteristic to form a kind of novel bass box acoustic construction
In the bass box of current band-pass speaker.
On the one hand it is answered from the application of mixing function, filter function, voltage regulation function and loudspeaker monomer mode, push-pull mode
With the application of, complex mode, divide the variations such as column mode application, speaker low frequency is not only handled to the accuracy of acoustical behavior and its quality
It increases with flexibility ratio, and makes low frequency processing and control means with more flexibility under different designs requirement, especially
On compared with the processing of small box low frequency, more current speaker improves the application advantage of smaller volume with more sensitivity；Another aspect because
It can neatly adjust its space air pressure, can save when the smaller speaker of design volume under same low frequency behavior standard
Material utilization amount further saves production cost and social resources.Therefore, the present invention has speaker frequency acoustic technical treatment
The promote meaning of practical value and electroacoustic techniques development.
Detailed description of the invention
Attached drawing 1 is basic structure schematic diagram of the embodiment of the present invention with general formula woofer；
Attached drawing 2 is the side structure schematic diagram of 1 monomer-type band logical woofer of the embodiment of the present invention；
Attached drawing 3 is the side structure schematic diagram of 2 push-pull type band logical woofer of the embodiment of the present invention；
Attached drawing 4 is the side structure schematic diagram of 3 complex formula band logical woofer of the embodiment of the present invention；
Attached drawing 5 is the side structure schematic diagram of 4 complex push-pull type band logical woofer of the embodiment of the present invention；
Attached drawing 6 is the side structure schematic diagram of 5 march-past band logical woofer of the embodiment of the present invention；
Attached drawing 7 is the side structure schematic diagram of 6 march-past complex band logical woofer of the embodiment of the present invention；
Attached drawing 8 is mixing effect diagram of 1 monomer-type of the embodiment of the present invention with general formula woofer；
Attached drawing 9 is filter effect schematic diagram of 1 monomer-type of the embodiment of the present invention with general formula woofer.
Wherein:
1, pressure regulating chamber；11, damping hole；12, acoustic(al)absorbent；2, woofer；21, partition；22, woofer；23, higher
Low-frequency resonator；24, lower low-frequency resonator；25, compared with low-and high-frequency woofer；26, lower low frequency bass speaker；27, it doubles
Woofer；28, first partition；29, second partition；30, more range low frequency resonator；31, lower low frequency bass speaker.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
Referring to Fig.1, band general formula woofer of the present invention is added on the outside of the section that resonator is arranged in woofer 2
The formation of pressure regulating chamber 1 is carried, woofer 2 is equipped at least one horizontally disposed partition 21, and partition 21 is equipped at least one
A woofer 22, the tank wall of 21 top of partition are equipped with compared with low-and high-frequency resonator 23, and the tank wall of 21 lower section of partition is equipped with
Lower low-frequency resonator 24, so that at least woofer 2 is divided into compared with low-and high-frequency woofer 25 and lower low frequency bass
Damping hole 11 is arranged on pressure regulating chamber 1, acoustic(al)absorbent 12 is arranged in pressure regulating chamber 1, the damping and Q value of speaker are adjusted with this for speaker 26
Size, and from mixing function, filter function, voltage regulation function and loudspeaker monomer mode application, push-pull mode application, complex mould
Formula application, the application of complex push-pull mode divide the variations such as the application of column mode, the application of march-past complex mode, to band logical bass box
Acoustical behavior is adjusted, and increases the flexibility of band logical bass box sound quality variation adjustment.
Wherein, the combination of loudspeaker can also be adjusted, said combination is not limited to according to other needs.Compared with low-and high-frequency
Woofer 25 be relative to lower low frequency bass speaker 26 frequency it is higher, thus be known as compared with low-and high-frequency woofer.It is higher
Low-frequency resonator 23 be relative to lower low-frequency resonator 24 frequency it is higher, thus be known as compared with low-and high-frequency resonator.On but
It is all low-frequency for stating four.
Embodiment 1:
Referring to Fig.1,2, band general formula woofer of the present invention is monomer-type band logical woofer, i.e. present invention variation
The basic structure of application a comprising woofer 2, woofer 2 is interior to be equipped with horizontal partition 21, and partition 21 is equipped with low frequency
Woofer 2 is divided into upper box and lower box by loudspeaker 22, partition 21, is equipped on the side wall of upper box humorous compared with low-and high-frequency
Shake device 23, and the corresponding side wall of lower box is equipped with lower low-frequency resonator 24, compared with low-and high-frequency resonator 23 and lower low-frequency resonant
Device 24 is located on same longitudinal axis, so that woofer 2 is divided into higher-frequency woofer 25 and compared with low frequency bass by partition 21
Speaker 26.
It is equipped on the outside of the section compared with low-and high-frequency resonator 23 and lower low-frequency resonator 24 in woofer 2 and connects pressure regulating chamber
1, so that it is humorous to connect into an acoustics with pressure regulating chamber 1 respectively compared with low-and high-frequency resonator 23 and 24 outer cross section of lower low-frequency resonator
Shake access.Resistance is respectively equipped in pressure regulating chamber 1 and the two side walls adjacent with lower low-frequency resonator 24 compared with low-and high-frequency resonator 23
Buddhist nun hole 11, has on damping hole 11 multiple, and two sides are symmetrical arranged.Acoustic(al)absorbent 12, acoustic(al)absorbent 12 are additionally provided in pressure regulating chamber 1
It is attached to 1 cavity wall of pressure regulating chamber corresponding with resonator.
The present embodiment is one woofer of device, 22 institute on partition 21 under the basic acoustic construction described in Fig. 1
The monomer-type of composition loads band logical woofer.
Embodiment 2:
Referring to Fig. 3, band general formula woofer of the present invention is Fig. 1,2 lifes with the variation of general formula woofer
Push-pull type band logical woofer a comprising woofer 2, woofer 2 is interior to be equipped with horizontal partition 21, and partition 21 is set above
There is a woofer 22,21 bottom of partition is equipped with that electric property is identical with woofer 22 but effect for what is be pressurized doubles low frequency
Woofer 2 is divided into upper box and lower box by loudspeaker 27, partition 21, is equipped on the side wall of upper box humorous compared with low-and high-frequency
Shake device 23, and the corresponding side wall of lower box is equipped with lower low-frequency resonator 24, compared with low-and high-frequency resonator 23 and lower low-frequency resonant
Device 24 is located on same longitudinal axis, so that woofer 2 is divided into higher-frequency woofer 25 and compared with low frequency bass by partition 21
Speaker 26.
It is equipped on the outside of the section compared with low-and high-frequency resonator 23 and lower low-frequency resonator 24 in woofer 2 and connects pressure regulating chamber
1, so that it is humorous to connect into an acoustics with pressure regulating chamber 1 respectively compared with low-and high-frequency resonator 23 and 24 outer cross section of lower low-frequency resonator
Shake access.Resistance is respectively equipped in pressure regulating chamber 1 and the two side walls adjacent with lower low-frequency resonator 24 compared with low-and high-frequency resonator 23
Buddhist nun hole 11, has on damping hole 11 multiple, and two sides are symmetrical arranged.Acoustic(al)absorbent 12, acoustic(al)absorbent 12 are additionally provided in pressure regulating chamber 1
It is attached to 1 cavity wall of pressure regulating chamber corresponding with resonator.
Under the premise of the present embodiment is the basic acoustic construction described in embodiment 1, in 21 down devices woofer of partition
22 with double the woofers of woofer 27 etc. two reverse parallel connections, so that two loudspeakers is formed push-pull types and move, by
This makes oscillating mass double, and then make speaker drive energy multiplication, promotes class under the premise of vibration area is identical with monomer
Like case cavity space acoustic voiume demultiplication under the premise of performance is identical of structure, thus achieve the purpose that reduce bass box volume,
Constitute push-pull type band logical woofer.
Embodiment 3:
Referring to Fig. 4, band general formula woofer of the present invention is Fig. 1,2 basic structures from embodiment 1 be monomer-type
The variation of loaded ribbon general formula woofer and raw complex formula band logical woofer comprising a woofer 2, in woofer 2
Equipped with horizontal partition 21, partition 21 is equipped at least two above, can be more woofers 22 arranged side by side, and partition 21 will
Woofer 2 is divided into upper box and lower box, is equipped on the side wall of upper box compared with low-and high-frequency resonator 23, lower box is corresponding
Side wall be equipped with lower low-frequency resonator 24, be located on same longitudinal axis compared with low-and high-frequency resonator 23 and low-frequency resonator 24,
To which woofer 2 is divided into higher-frequency woofer 25 and compared with low frequency woofer 26 by partition 21.
It is equipped on the outside of the section compared with low-and high-frequency resonator 23 and lower low-frequency resonator 24 in woofer 2 and connects pressure regulating chamber
1, so that it is humorous to connect into an acoustics with pressure regulating chamber 1 respectively compared with low-and high-frequency resonator 23 and 24 outer cross section of lower low-frequency resonator
Shake access.Resistance is respectively equipped in pressure regulating chamber 1 and the two side walls adjacent with lower low-frequency resonator 24 compared with low-and high-frequency resonator 23
Buddhist nun hole 11, has on damping hole 11 multiple, and two sides are symmetrical arranged.Acoustic(al)absorbent 12, acoustic(al)absorbent 12 are additionally provided in pressure regulating chamber 1
It is attached to 1 cavity wall of pressure regulating chamber corresponding with resonator.
The present embodiment is change application on that basis of example 1, i.e., the more low frequency loudspeakers of parallel connection in the same direction on partition 21
Device 22 makes it vibrate area and doubles compared with monomer-type, while speaker volume being doubled, and expands bass box volume raising sound to reach
Pressure is that the purpose of sensitivity is formed by the complex formula band logical woofer of more loudspeakers while movement.
Embodiment 4:
Reference Fig. 5, band general formula woofer of the present invention, based on Fig. 1, the 2 band general formula woofer structures,
Change and raw complex push-pull type band logical woofer from embodiment 2 comprising a woofer 2, woofer 2 is interior to be equipped with water
Flat partition 21, partition 21 are equipped at least two above, can be more woofers 22 arranged side by side, 21 upper bottom portion of partition is set
There are at least two, can be more and the reverse parallel connection symmetrical above and below of woofer 22 and quantity is identical doubles woofer
27, but effect identical as 22 electric property of woofer is pressurization.
Woofer 2 is divided into upper box and lower box by partition 21, is equipped on the side wall of upper box humorous compared with low-and high-frequency
Shake device 23, and the corresponding side wall of lower box is equipped with lower low-frequency resonator 24, compared with low-and high-frequency resonator 23 and low-frequency resonator 24
On same longitudinal axis, so that woofer 2 is divided into higher-frequency woofer 25 and compared with low frequency woofer by partition 21
26。
It is equipped on the outside of the section compared with low-and high-frequency resonator 23 and lower low-frequency resonator 24 in woofer 2 and connects pressure regulating chamber
1, so that it is humorous to connect into an acoustics with pressure regulating chamber 1 respectively compared with low-and high-frequency resonator 23 and 24 outer cross section of lower low-frequency resonator
Shake access.Resistance is respectively equipped in pressure regulating chamber 1 and the two side walls adjacent with lower low-frequency resonator 24 compared with low-and high-frequency resonator 23
Buddhist nun hole 11, has on damping hole 11 multiple, and two sides are symmetrical arranged.Acoustic(al)absorbent 12, acoustic(al)absorbent 12 are additionally provided in pressure regulating chamber 1
It is attached to 1 cavity wall of pressure regulating chamber corresponding with resonator.
Based on the basic acoustic construction of embodiment 1, from a kind of mode of 2 change application of embodiment, i.e., the present embodiment is
Low frequency is doubled more than 21 down devices of partition two (including two) above woofers 22 and two (including two) to raise
The woofer 22 of the more symmetrical reverse parallel connections such as sound device 27 makes about 21 more, partition symmetrical loudspeakers be formed simultaneously the same sex
The push-pull type of matter moves, and thus under the premise of vibration area is identical with monomer, makes oscillating mass with the variation times of loudspeaker plural number
Increase, and then change speaker drive energy also by loudspeaker plural number and double, constitutes complex push-pull type band logical woofer.
Embodiment 5:
Referring to Fig. 6, band general formula woofer of the present invention is still with embodiment 1 for basic acoustic construction, and with this
A kind of march-past band logical woofer of life for basic change application a comprising woofer 2 is equipped in woofer 2
Horizontal first partition 28 and second partition 29, first partition 28 is set to the top of second partition 29, thus by woofer 2
It is divided into three spaces i.e. upper box, lower box and middle cabinet, 28 top of first partition and 29 bottom of second partition are respectively set
There is the symmetrical woofer 22 of about one two-phase, it is humorous that frequency of fighting it out is respectively provided on the side wall of upper box and lower box
Shake device 23, and the middle corresponding side wall of cabinet is equipped with more range low frequency resonator 30, and compared with low-and high-frequency resonator 23 and more low frequency is humorous
Vibration device 30 is located on same longitudinal axis, first partition 28 and second partition 29 by woofer 2 be divided into two it is low compared with low-and high-frequency
Sound box with sound 25 and a lower low frequency bass speaker 31.Wherein, more range low frequency resonator 30 is relative to compared with low-and high-frequency resonator
23 and the lower low-frequency resonator 24 of embodiment 1,2,3,4 frequency band resonance it is lower, thus be known as more range low frequency resonator；Together
Sample, lower low frequency bass speaker 31 are relative to compared with low-and high-frequency woofer 25 and the lower low frequency bass sound of embodiment 1,2,3,4
The frequency band resonance of case 26 is lower, thus is known as lower low frequency bass speaker.
It is equipped in woofer 2 compared with connecting pressure regulation on the outside of the section of low-and high-frequency resonator 23 and more range low frequency resonator 30
Storehouse 1, so that compared with low-and high-frequency resonator 23 and more 30 outer cross section of range low frequency resonator connects into an acoustics with pressure regulating chamber 1 respectively
Resonance access.It is respectively equipped in pressure regulating chamber 1 and the two side walls adjacent with more range low frequency resonator 30 compared with low-and high-frequency resonator 23
Damping hole 11, has on damping hole 11 multiple, and two sides are symmetrical arranged.Acoustic(al)absorbent 12, acoustic(al)absorbent are additionally provided in pressure regulating chamber 1
12 are attached to 1 cavity wall of pressure regulating chamber corresponding with resonator.
The present embodiment is the integrated embodiment 2 in 1 structure basis of embodiment, makees to increase a lower low frequency bass speaker
31 change application mode makees reverse parallel connection using the woofer 22 of down devices, is allowed to form push-pull type movement, and it
Between plus set a speaker by middle position and lower low frequency bass speaker 31 that more range low frequency resonator 30 forms, make its loudspeaking
The two sides of device vibrating diaphragm generates air driving effect, so, it to be higher by 1 times or more compared with its air of embodiment 2 driving area, compared with
The efficiency of embodiment 2 also improves 1 times or more；Since it is located in the middle speaker space by upper and lower two speaker drives, more in fact
Big 1 times of air driving energy or more for applying example 2, the low-frequency minimum design for just giving more range low frequency resonator 30 provide downwards
The condition of bigger displacement, so that having the present embodiment extends lower performance compared with 2 low frequency of embodiment.
The present embodiment is by the identical low frequency bass speaker difference array of two performances in the upper of lower low frequency bass speaker 31
Lower both ends, and the function of pressure regulating chamber 1 is shared, constitute march-past band logical woofer.
Embodiment 6:
Referring to Fig. 7, based on the structure of embodiment 5, under the premise of its structure is basically unchanged, by first partition 28 and
The woofer 22 of device makees multiple increase processing on second partition 29, can applying embodiment 5 on low frequency efficiency
It significantly improves, march-past complex loaded ribbon general formula woofer is also constituted with this.
Band general formula speaker sounding is mainly resonatron, and the frequency of resonator is exactly speaker frequency.
Wherein, described in aforementioned four embodiment:
The lowest resonance frequency of woofer 22 are as follows: 30Hz ~ 70Hz
Compared with the frequency range of low-and high-frequency resonator 23 are as follows: 80Hz ~ 150Hz
The frequency range of lower low-frequency resonator 24 are as follows: 30Hz ~ 80Hz
The more frequency range of range low frequency resonator 30 are as follows: 10Hz ~ 30Hz
Mixing enlarging function of the invention is demonstrated, wherein low frequency by taking monomer-type band general formula woofer as an example referring to Fig. 8
The acoustic wave segment that loudspeaker 22 vibrates enters via high-frequency resonator 23 with the generation of range low frequency resonator 24 resonance or conduction more
Function pressure regulating chamber 1 generated again with the Air Coupling of the pressure regulating chamber 1 again resonance with amplify after vibrational energy by damping hole 11 to
External radiation.
Filter function of the invention is demonstrated, wherein low frequency loudspeaker by taking monomer-type band general formula woofer as an example referring to Fig. 9
The component frequency especially frequency of 150Hz or more that device 22 vibrates is filtered through high-frequency bass box 25 and low frequency bass box 26
Afterwards, there are also component frequency responses leaks into Multifunction pressure storehouse 1 by upper frequency resonator 23 and lower frequency resonator 24, and
The sound wave for leaking into 1 part of Multifunction pressure storehouse is filtered again by pressure regulating chamber, to make the more existing band general formula of low-frequency component ratio
Speaker is bigger.
Band general formula woofer in above embodiments, all of above embodiment can be by adjusting damping hole 11
Total area or volume by adjusting acoustic(al)absorbent 12, to adjust the damping and Q value of speaker of the present invention.Wherein, damping hole 11
Total area is bigger, and the damping value of speaker is smaller, and the viscosity of air flowing is fewer, and impulse response transient state is faster；Conversely, damping
Value is bigger, and the viscosity of air flowing is more, and impulse response transient state is slower；The volume of acoustic(al)absorbent 12 is bigger, and the Q value of speaker is got over
Greatly, the viscosity of air flowing is bigger, stronger to loudspeaker counter power；Conversely, Q value is smaller, the viscosity of air flowing is smaller,
It is weaker to loudspeaker counter power；Present invention damping and Q value adjustable physical condition are made full use of, can be matched damping with Q value
Than being arranged to an optimized integrated value, it can so make entire low frequency channel, including loudspeaker, resonator, speaker etc. can
Abundant resonance is beneficial to the performance and quality that improve bass box.
The present invention mainly loads a multi-functional acoustics tune in band general formula woofer opening (resonator outer cross section)
Storehouse is pressed, pressure regulating chamber is equipped with several damping holes or device has acoustic(al)absorbent, forms non-fully enclosure space, is equivalent to humorous in speaker low frequency
It is provided with cushion space or medium-space that an air interacts between vibration device and the free space outside cabinet, and utilizes its buffering
Or the air hydrodynamics special status of intermediary, the variation by carrying out damping characteristic or Q value characteristic to self space adjust come
The sound coupled relation between case chamber, lumen and free space is integrated, to form a kind of novel adjustable band of bass tones
General formula woofer acoustic construction constitutes the low frequency speaker being different from currently with general formula woofer with itself acoustic characteristic
Processing technique.
The basic principle of application of the invention:
1, it is one compared with low-and high-frequency speaker and lower low frequency speaker (including low frequency speaker) to be combined into one and (or even close three
For woofer one)；
2, the identical loudspeaking of electric property is used compared with low-and high-frequency speaker and lower low frequency speaker (including low frequency speaker)
Device is as resonant drive；
3, for the speaker unit of resonant drive will be compared with low-and high-frequency speaker and lower low frequency speaker (including lower low frequency
Speaker) on the partition that separates；
4, compared with low-and high-frequency speaker and the different resonant frequency ranges of lower low frequency speaker (including low frequency speaker) be by
Respectively different resonant frequency point value and tank-volumes and the difference of resonator catheter length (including diameter) ratio are constituted
's；
5, compared with low-and high-frequency speaker by resonatron couple with pressure regulating chamber the relatively high one section frequency response of sending with it is lower low
Frequency speaker (including low frequency speaker) couples the relatively low one section frequency response issued with pressure regulating chamber in pressure regulation by resonatron
Storehouse is mixed into one section compared with other broader low frequency response of acoustic construction speaker low-frequency range；
6, partition can be with one woofer unit of device, two woofer units, 3 woofer lists
Or even member, 4 ... N woofer units；
7, when all device even numbered loudspeaker units, it is necessary to carry out reverse parallel connection processing, keep the direction of motion of vibrating diaphragm consistent；
8, when all device odd numbered loudspeaker units, it is necessary to carry out positive parallel processing, the news for vibrating loudspeaker unit
Number time difference is consistent.
The key of the technology of the present invention is that loaded pressure regulating chamber carries out damping adjustment and the adjustment of Q value:
Firstly, between the resonator (also referred to as phase-reversing tube, sound guide tube, conduit) and loudspeaker of speaker, there are air-flow antagonisms
Vibration relationship.The diaphragm of loudspeaker movement air push outward or inwardly inspiration air-flow when necessary narrow resonator be open, when
When the air flow pressure of its push or inspiration reaches some intensity, narrow resonator opening is limited because of itself scale of construction, it is suppressed that gas
The smooth push or inspiration of stream, cause the certain frequency vibration wave air-flows of loudspeaker in the delay of resonator opening, when this
(as the air-flow of loudspeaker push simultaneously is outside when delay just causes loudspeaker vibration airflow direction opposite with resonator airflow direction
It is inwards or opposite with resonator inspiration air-flow), the air column of resonator will be excited vibration sounding, and resonator opening area is got over
Longer its of small diameter tube is pushed to loudspeaker vibration or the air damping of inspiration is bigger, and the reversed Frequency point of produced air-flow is got over
Low, the frequency for the vibration sounding that is excited is also lower.In general, with the speaker other than general formula bass box such as inverted phase type, labyrinth type, pipe
Only one Frequency point such as road formula occurs air-flow antagonism and vibrates relationship, that is, the lowest resonance frequency of loudspeaker, because in class
Like in acoustic construction speaker, loudspeaker only has this frequency to generate peak swing, causes biggish atmospheric pressure, forces resonator
Air column is because of air-flow reversal of vibrations sounding.So all speakers that resonator sounding is forced using loudspeaker lowest resonance frequency,
The air acting in opposition of resonator can inhibit peak swing when loudspeaker lowest resonance frequency, be conducive to loudspeaker change in resistance
Buffering；And the special construction with general formula bass box makes it possess several Frequency points rather than the vibration of the air-flow antagonism of some Frequency point
Dynamic relationship almost all generates this air-flow antagonism vibration in a lower frequency to all Frequency points between a upper frequency
Dynamic relationship can also say that band general formula bass box almost allows resonator sounding by this relationship completely.Other speakers are a Frequency points
Resonance is the resonance of a frequency band with general formula speaker.In this principle, a multi-functional acoustics pressure regulating chamber is loaded, pressure regulation is worked as
When storehouse itself increases damping, the damping of resonator will be aggravated or increase the Q value of entire acoustic path, while also increased entire
The air viscosity of acoustic path forces resonator to generate the reversed Frequency point of air-flow and shifts downwards, and the application of this principle makes
The present invention is lower compared with the frequency response of normal tape general formula woofer；Since the Multifunction pressure storehouse is also a resonance space,
Its low-frequency resonant entire area be greater than normal tape general formula woofer low-frequency resonant area, so its bass processing efficiency compared with
Normal tape general formula woofer wants high；Filter action again is played outside resonator due to pressure regulating chamber again, so its bass
Matter is purer compared with normal tape general formula woofer.
Secondly, one aspect of the present invention from mixing function, filter function, voltage regulation function and loudspeaker monomer mode apply,
Push-pull mode application, the application of complex push-pull mode, divides the variations such as column mode application at the application of complex mode, not only by speaker low frequency
Processing acoustical behavior and its accuracy of quality increase with flexibility ratio, and make under different designs requirement low frequency processing with
Control means have more flexibility, and especially on compared with the processing of small box low frequency, relatively current band general formula woofer is with more low
Audio rate improves or the application advantage of smaller volume；On the other hand because it can neatly adjust its air pressure and flow velocity, same
The smaller speaker of design volume under equal low frequency behaviors standard, can save material utilization amount, further save production cost and society
It can resource.Therefore, the promote meaning that the present invention there is practical value and electroacoustic techniques to develop speaker frequency acoustic technical treatment.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (3)
1. a kind of band general formula woofer, it is characterised in that: including woofer (2), have at least in the woofer (2)
One horizontally disposed partition (21), the partition (21) are equipped at least one woofer (22), the partition (21)
Woofer (2) tank wall of top and lower section be equipped with low-frequency resonator, by the woofer (2) be divided into top and
The low frequency bass speaker of lower section；The woofer (2) be equipped with pressure regulating chamber (1), the low-frequency resonator outer cross section respectively with institute
It states pressure regulating chamber (1) and connects into an acoustic resonance access；Woofer (2) tank wall above the partition (21) is equipped with higher
Low-frequency resonator (23), woofer (2) cabinet below partition (21) are equipped with lower low-frequency resonator (24), will be described low
Sound box with sound (2) is divided into the relatively low-and high-frequency woofer (25) of top and the lower low frequency bass speaker (26) of lower section；It is described
Acoustic(al)absorbent (12) are equipped in pressure regulating chamber (1), the pressure regulating chamber (1) is equipped with damping hole (11)；It is equipped in the woofer (2)
Horizontal first partition (28) and the second partition (29) being located at below first partition (28), the first partition (28) and the
Lower low frequency bass speaker (31) is equipped between two partitions (29), the tank wall of lower low frequency bass speaker (31) is equipped with more low frequency
Rate resonator (30), first partition (28) top are each provided with symmetrical above and below one with the second partition (29) bottom
Or more woofers (22), form march-past band logical woofer.
2. band general formula woofer according to claim 1, it is characterised in that: the damping hole (11) has multiple, level
It is symmetricly set on the pressure regulating chamber (1).
3. a kind of method with general formula woofer described in adjustment claim 1, it is characterised in that: by adjusting the pressure regulating chamber
(1) size of damping hole (11) total open area on, or by adjusting in the pressure regulating chamber volume of acoustic(al)absorbent (12) it is big
It is small, the damping size or Q value size of the speaker can be adjusted；Wherein, damping hole (11) total open area is bigger, speaker resistance
Buddhist nun is smaller, and air movement flow velocity viscosity reduces；The volume of acoustic(al)absorbent (12) is bigger in pressure regulating chamber, and speaker Q value is bigger, air
Flow velocity viscosity increases.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106034270A (en) * | 2015-03-19 | 2016-10-19 | 深圳纽斯声学系统有限公司 | closed multiple-cavity type low-pitch sound box and television set with the built-in low-pitch sound box |
| CN106028238B (en) * | 2016-07-07 | 2021-05-18 | 歌尔股份有限公司 | Double-monomer loudspeaker module, design method thereof and electronic equipment |
| CN106303808B (en) * | 2016-10-19 | 2018-10-02 | 李齐车 | A kind of resonatron superposition woofer and coaxial bugle three frequency division are superimposed speaker |
| CN107948868A (en) * | 2018-01-09 | 2018-04-20 | 张晓冬 | Intelligent high in the clouds car audio system |
| KR102581285B1 (en) * | 2019-01-03 | 2023-09-22 | 삼성전자주식회사 | Electronic apparatus |
| CN112116901B (en) * | 2020-09-18 | 2024-03-05 | 北京市燃气集团有限责任公司 | Method for improving acoustic subjective evaluation index of medium-low pressure gas pressure regulating tank |
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