CN108632720A - A kind of single-chamber body sandwich style automobile subwoofer - Google Patents
A kind of single-chamber body sandwich style automobile subwoofer Download PDFInfo
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- CN108632720A CN108632720A CN201710177227.7A CN201710177227A CN108632720A CN 108632720 A CN108632720 A CN 108632720A CN 201710177227 A CN201710177227 A CN 201710177227A CN 108632720 A CN108632720 A CN 108632720A
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- bass
- babinet
- woofer
- vibrating diaphragm
- chamber body
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- 238000009434 installation Methods 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 4
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- 230000000644 propagated effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000003993 interaction Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 239000010410 layer Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 230000036632 reaction speed Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The present invention relates to a kind of single-chamber body sandwich style automobile subwoofers, including a bass babinet and the woofer being separately mounted in bass box body and bass radiator group, woofer is at least one, on the tank wall of bass babinet, bass radiator group is at least one set of, every group of two bass radiator elements, the setting of two bass radiator elements correspondences is separately mounted on the tank wall of bass babinet, and the mounting plane of two bass radiator elements is coplanar with the mounting plane of woofer, parallel, vertical or be obliquely installed.The interaction that the present invention passes through woofer and bass radiator group, electroacoustic conversion is completed in single bass box body jointly, the volume of subwoofer is set to reduce 90%, it is light-weight, shock, bass thick and heavy, high resilience is purer can be generated again, it solves the problems, such as that subwoofer is very large to be not easy to install and use, is applicable to that cube is small, thin, bass is installed and used in good auto-loading, rear dress etc. again.
Description
Technical field
The present invention relates to car audio system speaker, specifically a kind of single-chamber body sandwich style automobile subwoofer.
Background technology
With the progress of science and technology, people require the sound quality of automobile audio higher and higher.In Fujian, science and technology goes out
Version society publishes in July, 2008《Loud speaker and speaker design manual》In, disclose closed speaker (page 60~67), opening
Formula speaker (page 67~77), passive radiation speaker (page 77~78).The automobile subwoofer that these public technologies make is following four
Kind structure：
1. integrated car subwoofer, i.e. woofer are arranged on bass babinet, 20~30 liters of bass babinet is utilized
Tank-volumes generate bass.
2. bodywork-type automobile subwoofer, i.e. woofer are mounted on the babinet for the certain space that car body is formed,
20~30 liters are formed using vehicle body to make bass babinet.
3. woofer, is arranged in compartment the rear window being isolated with standby luggage compartment by standby luggage compartment automobile subwoofer
On platform, using the volume of 500 liters or so of standby luggage compartment come the babinet as subwoofer.
4. woofer is mounted in car door, is formed using the outer wall and inner wall of car door by car door bass box
Interlayer space make bass babinet.
To get on the car, subwoofer will use 6.5 cun~12 cun of heavy caliber woofer, largely also need to it is ultra-thin,
Special processes are needed to manufacture, cost is very high；Car door and standby luggage compartment can not seal, and gas leakage cannot form real bass
Case, and it is exactly too small that volume, which is not excessive, cannot meet subwoofer requirement, therefore, bass effect is very poor；And valuable car body can
It is very limited using come bass box, it is necessary to vehicle car body be redesigned, volume is difficult to meet the requirements, and seal work
Skill is complicated difficult；In this way, the automobile subwoofer of prior art is formed, volume is big, and car installation sealing technology is complicated difficult,
It is of high cost, the drawback of bass effect difference.
Invention content
In order to solve the above problem existing for existing automobile subwoofer, the purpose of the present invention is to provide a kind of new physics
The single-chamber body sandwich style automobile subwoofer of acoustic construction.The automobile subwoofer of the present invention, can be advantageously applied to various automobiles
In.
The purpose of the present invention is achieved through the following technical solutions：
The present invention includes a bass babinet and the woofer being separately mounted in the bass box body and bass radiation
Device group, medium and low spectrum loudspeaker are at least one, on the tank wall of the bass babinet, and the bass radiator group is extremely
Few one group, every group of two bass radiator elements, two bass radiator elements correspondence settings are separately mounted to bass
On the tank wall of babinet, the mounting planes of two bass radiator elements is coplanar with the mounting plane of woofer, it is parallel,
Vertically or it is obliquely installed；
Wherein：The single-chamber body sandwich style automobile subwoofer is equipped with the air gap for forming aeroacoustics air cushion, low
Speech wave propagates to listening volume by the air gap；On the outside of the vibrating diaphragm of the woofer and in the bass radiator group
It is respectively equipped with the vibrating diaphragm cover board being connect with bass babinet on the outside of the vibrating diaphragm of each bass radiator elements, the vibrating diaphragm cover board and institute
It states and is respectively formed the air gap between the vibrating diaphragm of each bass radiator elements between the vibrating diaphragm of woofer；The single-chamber
Body sandwich style automobile subwoofer outermost is equipped with bass outer case cover, and it is low that the vibrating diaphragm cover board with bass babinet is placed in this
In sound outer case cover, the bass outlet that oriented listening volume propagates bass sound wave is opened up on the bass outer case cover；It is described to shake
The vibrating diaphragm of the vibrating diaphragm of woofer, each bass radiator elements is completely covered membrane cover plate, which corresponds to bass and raise
The position of sound device vibrating diaphragm and corresponding each bass radiator elements shake the position touched respectively with woofer vibrating diaphragm, each bass spoke
The emitter unit shape touched of shaking is identical, and forms the air gap of same shape；
The outside of the bass babinet is equipped with bass outer case cover, which is mounted on the bass babinet
On, and there are the air gaps for forming aeroacoustics air cushion, bass sound wave to be propagated to by the air gap between bass babinet
Listening volume；
The woofer is symmetrical arranged by identical woofer unit and is formed, all woofer units
It is installed on the same tank wall of the bass babinet, and is that electroacoustic is same and is connected；
All bass radiator elements all sames in each bass radiator group, and all bass radiator elements are pacified
The tank wall of the bass babinet of dress is parallel or coplanar, and two bass radiator elements in every group of bass radiator group are symmetrically mounted on
On two tank walls of the bass babinet being mutually parallel；
The bass of the peak and bass radiator group of the vibration component of the woofer unit of the woofer
The peak of the vibration component of radiator elements is in the same plane；
The minimum volume of the bass babinet changes, the best appearance of the bass babinet with the vibrating diaphragm area of woofer
Product linearly changes with the quantity of the woofer unit of woofer, i.e. R=C × N, wherein R are the bass babinet
Best volume, C are the best volume of the bass babinet of a woofer unit, and N is that the bass of the woofer is raised
The number of elements of sound device unit.
Advantages of the present invention is with good effect：
1. present invention employs the bass babinets of single cavity, and are provided at least one bass loudspeaker in bass box body
Device and at least one set of bass radiator group, they complete electroacoustic by the interaction of sound wave and convert jointly, and required babinet is made to hold
Product significantly reduces, and 20~30 liters are kept to less than 3 liters, and weight is greatly reduced, thinner, solve traditional technology subwoofer
It is very large to be not easy to install and use problem in automobile；The present invention can easily be placed under the seat of positive and negative driver or compartment
The place of door or other interior very little, dress improves sound with vehicle in use has been purchased before being advantageously applied to assembly plant
The rear dress of matter.
2. the present invention is provided with vibrating diaphragm cover board, not only effective protection woofer vibrating diaphragm and bass radiator elements are shaken
Film, and the air gap is formd, the air gap that bass sound wave can only be from different directions blazes abroad from window, thus shape
At acoustics air cushion, bass effect is made further to get a promotion.
3. the present invention overcomes the vibrating diaphragms of the woofer of traditional technology subwoofer directly facing listening volume, can radiate
It goes out unwanted disagreeable middle pitch noise, reduces the bass purity of subwoofer；The present invention is provided with vibrating diaphragm cover board, and middle pitch is not
It can be directly radiated listening volume, in this way, just making the bass of subwoofer purer.
4. present invention employs more woofers, electro-acoustic conversion efficiency is improved, subwoofer is also substantially increased
Power；Meanwhile the power that every woofer is born reduces, the voice coil displacement of woofer reduces, and reduces subwoofer
Electroacoustic slewing distortion.
5. present invention employs bass radiator group, every group of bass radiator group is by a pair of of bass radiators
At this pair of of bass radiator elements is one in front and one in back front and back arranged symmetrically, they are vibrated simultaneously, and direction of vibration is on the contrary, vibration
Amplitude is equal, and vibration force is offset, and drastically reduces the mechanical oscillation of electroacoustic conversion, and while making bass boost, vibration is miscellaneous
Sound reduces, and bass delay reduces, inverted phase type opening subwoofer of the bass reaction speed better than traditional technology.
6. the present invention overcomes the subwoofer of traditional technology in small volume, bass effect drastically declines the drawbacks of, in small sound
Bass reduction is still very good when amount, realizes the big volume of bass and the bass reduction balance of small volume well.
7. the present invention is small, and is equipped with vibrating diaphragm cover board, more conducively ID designs.
8. small-bore common woofer of the invention, such as especially low with 3.5 cun of common 10 cun of woofers replacements
Sound loud speaker, overall materials are few, at low cost, are readily produced manufacture.
9. the present invention installs in the car, the speaker size of each car door can be made to be greatly lowered, such as raised one's voice from 6.5 cun
Device changes into 2 cun of loud speakers, greatly reduces the space for occupying car door, reduces car door weight.
10. present invention application in the car when, reduce the electroacoustic conversion vibrations of car door, improving car door service life and vehicle can
By property.
11. subwoofer of the present invention overcomes the drawbacks of cannot being covered above the vibrating diaphragm of traditional technology subwoofer, it is not afraid of screening
Lid, it is easier to put and install and use in the car.
12. this invention removes the wind that the phase-reversing tube of traditional technology subwoofer and its outlet sound mouth generate to make an uproar, bass information stream
The elimination of transmitted noise keeps the bass of broadcasting purer.
Description of the drawings
Figure 1A is the structure sectional view of the embodiment of the present invention one；
Figure 1B is the left view of Figure 1A；
Fig. 2A is the structure sectional view of the embodiment of the present invention two；
Fig. 2 B are the upward view of Fig. 2A；
Fig. 3 A are the structure sectional view of the embodiment of the present invention three；
Fig. 3 B are the upward view of Fig. 3 A；
Fig. 4 A are the structure sectional view of the embodiment of the present invention four；
Fig. 4 B are the left view of Fig. 4 A；
Fig. 5 A are the structure sectional view of the embodiment of the present invention five；
Fig. 5 B are the upward view of Fig. 5 A；
Fig. 6 A are the structure sectional view of the embodiment of the present invention six；
Fig. 6 B are the left view of Fig. 6 A；
Fig. 7 A are the structure sectional view of the embodiment of the present invention seven；
Fig. 7 B are the left view of Fig. 7 A；
Fig. 8 A are the structural schematic diagram of the embodiment of the present invention eight；
Fig. 8 B are the right side view of Fig. 8 A；
Fig. 9 A are the structure sectional view of the embodiment of the present invention nine；
Fig. 9 B are the right view of Fig. 9 A；
Figure 10 A are the structure sectional view of the embodiment of the present invention ten；
Figure 10 B are the vertical view of Figure 10 A；
Wherein：1 is bass babinet, and 2 be woofer, and 3 be bass radiator group, and 4 be vibrating diaphragm cover board, and 5 between air
Gap, 6 be connecting pole, and 7 be bass outer case cover, and 8 export for bass.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
The present invention includes a bass babinet 1 and is separately mounted to the woofer 2 in the bass babinet 1 and bass spoke
Emitter group 3, medium and low spectrum loudspeaker 2 are at least one (can be one~eight), on the tank wall of bass babinet 1, bass
Radiator group 3 is at least one set of (can be one~eight group), every group of two bass radiator elements, two bass radiator elements
Correspondence setting is separately mounted on the tank wall of bass babinet 1, and mounting plane and the bass of two bass radiator elements are raised
The mounting plane of sound device 2 is coplanar, parallel, vertical or be obliquely installed.Woofer 2 is by identical woofer unit group
At these woofer units are symmetrical arranged；All woofer units are installed in the same tank wall of bass babinet 1
On, and be that electroacoustic is same and be connected.
All bass radiator elements all sames in each bass radiator group 3, and all bass radiator elements are installed
Bass babinet 1 tank wall it is parallel or coplanar, two bass radiator elements in every group of bass radiator group 3 are symmetrically mounted on
On two tank walls of the bass babinet 1 being mutually parallel.When woofer 2 and bass radiator group 3 are arranged, woofer 2
The peak and bass of the vibration component [such as vibrating diaphragm or ring (also known as Cushions, foam side)] of woofer unit radiate
The peak of the vibration component [such as vibrating diaphragm or ring (also known as Cushions, foam side)] of the bass radiator elements of device group 3 exists
On same plane.The minimum volume of bass babinet 1 is different with the vibrating diaphragm area of woofer 2 and changes, such as a diameter
Minimum volume needed for 92mm 3.5 inches of woofer units of cone is 1.1 liters, and best volume is 1.3 liters, because 1.3
It is further added by volume bass effect after rising and is not further added by, bass effect can drastically decline when reduction, and a conical bass is raised
Minimum volume is needed for sound device unit：2 inches for 0.1 liter, 2.5 inches be 0.2 liter, 3 inches be 0.4 liter, 3.5 inches be 1 liter,
4 inches are 4 liters for 2 liters, 4.5 inches.The required minimum volume of single only oval woofer unit is joined by its vibrating diaphragm area
According to the similar conical woofer unit of vibrating diaphragm area.The best volume of bass babinet 1 is raised with the bass of woofer 2
The quantity of sound device unit linearly changes, i.e. R=C × N, wherein R are the best volume of bass babinet 1, and C is a woofer
The best volume of the bass babinet 1 of unit, N are the number of elements of the woofer unit of woofer 2.
The single-chamber body sandwich style automobile subwoofer of the present invention is equipped with the air gap 5 for forming aeroacoustics air cushion, low
Speech wave propagates to listening volume by the air gap 5.
In the vibrating diaphragm outside of woofer 2 and bass radiator group 3 on the outside of the vibrating diaphragm of each bass radiator elements respectively
Equipped with the vibrating diaphragm cover board 4 being connect with bass babinet 1, which is connected to by multiple connecting poles 6 on bass babinet 1, with
Between the vibrating diaphragm of woofer 2 the air gap 5 is respectively formed between the vibrating diaphragm of each bass radiator elements.In single-chamber body Sanming City
It controls formula automobile subwoofer outermost and is also equipped with bass outer case cover 7, which is installed by multiple connecting poles 6
On bass babinet 1, vibrating diaphragm cover board 4 is placed in bass babinet 1 in the bass outer case cover 7, is opened on bass outer case cover 7
Equipped with the bass outlet 8 for propagating bass sound wave to listening volume.Vibrating diaphragm cover board 4 radiates the vibrating diaphragm of woofer 2, each bass
The vibrating diaphragm of device unit is completely covered, which corresponds to the position of 2 vibrating diaphragm of woofer and corresponding each bass radiator
The unit position the touched shape touched of shaking respectively with 2 vibrating diaphragm of woofer, each bass radiator elements of shaking is identical, and is formed same
The air gap 5 of shape.
Alternatively, the outside of bass babinet 1 is equipped with bass outer case cover 7, which passes through multiple connecting poles 6
On bass babinet 1, and between bass babinet 1 there are formed aeroacoustics air cushion the air gap 5, bass sound wave by
The air gap 5 propagates to listening volume.
The present invention vibrating diaphragm cover board 4 can be substituted by the installation environment side wall of bass babinet 1, such as utilize car body, car door it is interior
Outer carriage wall etc. substitutes vibrating diaphragm cover board 4.
Embodiment one
As shown in Figure 1A, Figure 1B, only there are one the bass babinet 1 of single-chamber body, the bass babinets 1 for the subwoofer of the present embodiment
In rectangular shape, there are four woofers 2, one group of both to be respectively symmetrically mounted on low for setting in bass babinet 1
On the preceding tank wall of sound box bodies 1；Woofer 2 can be made of a woofer unit, can also be more, each low
Sound loudspeaker unit can be circular, can also be ellipse.The present embodiment is to be mounted with one in each woofer 2
The round woofer unit of diameter 92mm.Two groups of bass radiator groups 3 are additionally provided in bass babinet 1, every group low
Sound radiator 3 is made of a pair of (2) bass radiator elements, is corresponded before and after a pair of of bass radiator elements in every group
Setting.Bass radiator is also known as passive passive low frequency radiation device, also known as empty loudspeaker, does not have a magnet and voice coil, only vibrating diaphragm and
Its support device.It can be circular, can also be ellipse or it is rectangular, shape can be that tablet can also be
It is conical.Two groups of identical bass radiator groups 3 of the present embodiment, every group of bass radiator group 3 is by two identical length
Rectangular bass radiator elements are constituted, and size is 90mm × 125mm.This two groups of bass radiator groups 3 are pacified mutually symmetrical withly
Mounted in the middle part of bass babinet 1, wherein two bass radiator elements are mounted on and the 2 same bass babinet 1 of woofer
Preceding tank wall on, in addition 2 bass radiator elements are mounted on rear box wall corresponding with tank wall before above-mentioned bass babinet 1.
In 1 outside of bass babinet, above the vibrating diaphragm of woofer 2 and the vibrating diaphragm of bass radiator group 3, it is respectively arranged with
Vibrating diaphragm cover board 4, between 2 vibrating diaphragm of vibrating diaphragm cover board 4 and woofer and between 3 vibrating diaphragm of vibrating diaphragm cover board 4 and bass radiator group point
Not Xing Cheng the air gap 5, which is formed aeroacoustics air cushion.The vibrating diaphragm cover board 4 of the present embodiment is tablet.It is empty
The size in gas gap 5 is 2mm~50mm, the present embodiment 10mm.It is solid with connecting pole 6 between bass babinet 1 and vibrating diaphragm cover board 4
Fixed connection, needs with multiple connecting poles 6, it is therefore an objective to prevent vibrating diaphragm cover board 4 from vibrating, generate vibratory murmur and influence acoustics air cushion
Effect.The thickness of vibrating diaphragm cover board 4 is 1mm~5mm, the present embodiment 3mm.The material of vibrating diaphragm cover board 4 can be that plastics can also
It is timber or metal etc., and is cannot have any hole and the bottom plate in gap；The present embodiment is plastics.In this way, can
With two layers of vibrating diaphragm cover board 4 of front and back formation, the alliteration air cushion of two layers the air gap 5, two layers of vibrating diaphragm and one layer of bass babinet seven
The subwoofer of layer sandwiched type structure.
Bass babinet 1 can use the making such as plastics, metal and timber, can also be manufactured with plank, or can use die sinking note
The method of modeling manufactures；The bass babinet 1 of the present embodiment is manufactured using die sinking injection moulding process, and size is：330mm×280mm×
65mm.It is otherwise noted that all electroacoustic of woofer unit are same to be connected.
The single-chamber body sandwich style automobile subwoofer of the present invention can be also mounted in addition to mounted on existing vehicle speaker position
Vehicle right and left car door or the inferior position of positive assistant driver seat.
Embodiment two
As shown in Fig. 2A, Fig. 2 B, the difference between this embodiment and the first embodiment lies in：The woofer 2 of the present embodiment is
Two, bass radiator group 3 is two groups of four bass radiator elements, and these bass radiator elements are identical circle
Bass radiator elements.Remaining is identical as embodiment one.
Embodiment three
As shown in Fig. 3 A, Fig. 3 B, the difference between the present embodiment and the second embodiment lies in that：The woofer 2 of the present embodiment is
One, bass radiator group 3 is one group of two bass radiator elements.Remaining is identical as embodiment two.
Example IV
As shown in Fig. 4 A, Fig. 4 B, the difference between the present embodiment and the second embodiment lies in that：The woofer 2 four of the present embodiment
A, bass radiator group 3 is four groups of eight bass radiator elements；Four woofers 2, which are divided to arrange for four rows two, to be arranged, eight
Bass radiator elements have four be only installed at on 2 same tank wall of woofer, this four bass radiator elements with four
The matrix of four rows two row is collectively formed in woofer 2, i.e., the woofer 2 in each column replaces cloth with bass radiator elements
It sets, and each woofer 2 is in same a line with a bass radiator elements.Other four bass radiator elements with
Above-mentioned four bass radiator elements correspond, and corresponding two bass radiator elements are arranged parallel to.This reality
It applies example and vibrating diaphragm cover board 4 is not set.Remaining is identical as embodiment two.
Embodiment five
As shown in Fig. 5 A, Fig. 5 B, the difference between the present embodiment and the second embodiment lies in that：The woofer 2 of the present embodiment is
Two, bass radiator group 3 is two groups of four bass radiator elements；Wherein two bass radiator elements are raised with two basses
Sound device 2 is changed to longitudinal arrangement by the transversely arranged of embodiment two, forms a line and is alternately arranged；Other two bass radiators
Unit and above-mentioned two bass radiator elements correspond, and corresponding two bass radiator elements are mutually parallel cloth
It sets.Remaining is identical as embodiment two.
Embodiment six
As shown in Fig. 6 A, Fig. 6 B, the difference between this embodiment and the first embodiment lies in：The woofer 2 of the present embodiment is
Two, for setting direction on the contrary, the i.e. one preceding tank wall for being mounted on bass babinet 1, another is mounted on the rear box wall of bass babinet 1
On.The bass radiator group 3 of the present embodiment is one group of two bass radiator elements, is located at the centre of two woofers 2,
One of bass radiator elements and a 2 coplanar installation of woofer, another bass radiator elements and another
2 coplanar installation of woofer.Remaining is identical as embodiment one.
Embodiment seven
As shown in Figure 7 A, 7 B, the present embodiment and embodiment six difference lies in：Two woofers of the present embodiment
2 coplanar installations are installed on the same tank wall of bass babinet 1；In addition, the vibrating diaphragm lid on the outside of 2 vibrating diaphragm of woofer
The shape of plate 4 and the vibrating diaphragm shape phase of woofer 2.Remaining is and embodiment six is identical.
Embodiment eight
As shown in Fig. 8 A, 8B, the present embodiment and embodiment three difference lies in：1 shape of bass babinet of the present embodiment is
Cylinder, that is, subwoofer of the invention is in practical applications, can install object according to installation environment, such as car body or car door
Being contoured to for the bass babinet that reason structural environment is different and adapts to is variously-shaped.The vibrating diaphragm cover board 4 of the present embodiment is tablet
Shape, both ends are arc.Remaining is and embodiment three is identical.
Embodiment nine
As shown in Fig. 9 A, 9B, the difference between this embodiment and the first embodiment lies in：The present embodiment eliminate vibrating diaphragm cover board 4 and
Bass outer case cover 7 is added in 1 periphery of bass babinet, bass outer case cover 7 is fixed on bass babinet by multiple connecting poles 6
On 1, it is provided with bass outlet 8 on bass outer case cover 7, is provided between air between bass outer case cover 7 and bass babinet 1
Gap 5, that is, in actual use, vibrating diaphragm cover board 4 can use bass outer case cover 7 to substitute.This bass outer case cover 7 is exactly
It is realized using the installation environment of subwoofer of the present invention, such as in the car in application, the front and back of vehicle body or car door can be utilized
Wall etc. comes as vibrating diaphragm cover board 4, to have the function that be formed the air gap 5.Remaining is and embodiment one is identical.
Embodiment ten
As shown in Figure 10 A, 10B, the present embodiment and embodiment nine difference lies in：The woofer 2 of the present embodiment is
Two, bass radiator group 3 is one group two, and the present embodiment does not cancel original vibrating diaphragm cover board 4 in embodiment one, but
The outside of bass babinet 1 with vibrating diaphragm cover board 4 increases a bass outer case cover 7 again, and outside bass babinet 1 and bass
Another the air gap 5 is provided between babinet cover 7.Remaining is and embodiment nine is identical.
The operation principle of the present invention is that：
When low frequency audio power is applied to each woofer 2, the vibrating diaphragm of woofer 2 generates vibrations, realizes
Electroacoustic is converted.Since the bass babinet 1 where woofer 2 is single cavity, when the vibrating diaphragm of woofer 2 is to bass box
When direction is shaken in body 1, the air in bass babinet 1 is just had compressed, spring effect is at this moment just will produce, is made in bass babinet 1
Atmospheric pressure be more than atmospheric pressure, to drive bass radiator group 3 mutual corresponding bass radiator elements vibrating diaphragm
It is shaken simultaneously to outside bass babinet 1.When the vibrating diaphragm of woofer 2 is shaken to outside bass babinet 1 simultaneously by bass power drive
When dynamic, the air spring release in compressed bass babinet 1, the vibrating diaphragm of the restoring force boosting woofer 2 generated makes
Pressure in bass babinet 1 further decreases, and makes the pressure in bass babinet 1 further below atmospheric pressure, to make bass spoke
The vibrating diaphragm of emitter unit shakes into bass babinet 1 simultaneously, has not only increased considerably tweeters diaphragmse area in this way and (has increased about 2
Times or so), while vibrating diaphragm amplitude being made to increase, tank-volumes are not depended on while so that the bass sound wave of generation is obtained enhancing again and (are passed
The tank-volumes of the subwoofer of system technology are generally 20 liters~50 liters).It shakes in addition, being provided with above the vibrating diaphragm of bass babinet 1
Membrane cover plate 4, to form the air gap 5, and bass sound wave cannot directly be radiate as traditional technology, this information stream
It to be flowed in the air gap 5, material is thus formed aeroacoustics air cushions, and bass is made to further enhance.So just with small box
Bass can be shaken, thick and heavy, flexible.In addition, since single-chamber body bass babinet is a closed babinet,
The air spring reaction force generated in this bass babinet 1 makes each woofer voice coil displacement reduce, and is raised by more basses
Sound device unit shares audio power, and voice coil displacement is made to be further reduced, and electroacoustic is reduced while increasing subwoofer power and is turned
Change the distortion factor.Simultaneously because a pair of of bass radiator elements of every group of bass radiator group 3 correspond setting, low frequency is being realized
When electroacoustic is converted, symmetric vibration, Oscillation Amplitude is equal, and direction of vibration is on the contrary, vibration force counteracting, greatly eliminates subwoofer
Vibration and displacement.
The present invention considerably reduces the 90% of bass box volume, and light-weight, small-bore common low with 3 cun or so
Band loudspeaker and small box can obtain the effect of 8 cun or more traditional technology subwoofers, bass made to greatly enhance；And more
Thick and heavy, shock, dive be deeper, distortion smaller, and cost is lower, and manufacture is easier, volume smaller, thinner.
Claims (10)
1. a kind of single-chamber body sandwich style automobile subwoofer, it is characterised in that：Including a bass babinet (1) and it is separately mounted to
Woofer (2) in the bass babinet (1) and bass radiator group (3), medium and low spectrum loudspeaker (2) be it is at least one,
On the tank wall of the bass babinet (1), the bass radiator group (3) is at least one set of, every group of two basses radiation
Device unit, two bass radiator elements correspondence settings are separately mounted on the tank wall of bass babinet (1), described two
The mounting planes of bass radiator elements is coplanar with the mounting plane of woofer (2), parallel, vertical or be obliquely installed.
2. single-chamber body sandwich style automobile subwoofer according to claim 1, it is characterised in that：The single-chamber body sandwich
Formula automobile subwoofer is equipped with the air gap (5) for forming aeroacoustics air cushion, and bass sound wave is propagated to by the air gap (5)
Listening volume.
3. single-chamber body sandwich style automobile subwoofer according to claim 2, it is characterised in that：The woofer
(2) be respectively equipped on the outside of the vibrating diaphragm of each bass radiator elements on the outside of vibrating diaphragm and in the bass radiator group (3) with
The vibrating diaphragm cover board (4) of bass babinet (1) connection, between the vibrating diaphragm cover board (4) and the vibrating diaphragm of the woofer (2) and each institute
It states and is respectively formed the air gap (5) between the vibrating diaphragm of bass radiator elements.
4. single-chamber body sandwich style automobile subwoofer according to claim 3, it is characterised in that：The single-chamber body sandwich
Formula automobile subwoofer outermost is equipped with bass outer case cover (7), and the vibrating diaphragm cover board (4) is placed in this with bass babinet (1)
In bass outer case cover (7), the bass outlet that oriented listening volume propagates bass sound wave is opened up on the bass outer case cover (7)
(8)。
5. single-chamber body sandwich style automobile subwoofer according to claim 3 or 4, it is characterised in that：The vibrating diaphragm cover board
(4) vibrating diaphragm of the vibrating diaphragm of woofer (2), each bass radiator elements is completely covered, which corresponds to bass
The position of loud speaker (2) vibrating diaphragm and corresponding each bass radiator elements shake the position touched respectively with woofer (2) vibrating diaphragm,
Each bass radiator elements shape touched of shaking is identical, and forms the air gap (5) of same shape.
6. single-chamber body sandwich style automobile subwoofer according to claim 2, it is characterised in that：The bass babinet (1)
Outside be equipped with bass outer case cover (7), which is mounted on the bass babinet (1), and and bass box
There are the air gaps (5) for forming aeroacoustics air cushion, bass sound wave to propagate to audition by the air gap (5) between body (1)
Space.
7. single-chamber body sandwich style automobile subwoofer according to claim 1 or 2, it is characterised in that：The bass loudspeaker
Device (2) is symmetrical arranged by identical woofer unit and is formed, and all woofer units are installed in the bass
On the same tank wall of babinet (1), and it is that electroacoustic is same and is connected.
8. single-chamber body sandwich style automobile subwoofer according to claim 1 or 2, it is characterised in that：Each bass spoke
All bass radiator elements all sames in emitter group (3), and the bass babinet (1) of all bass radiator elements installation
Tank wall is parallel or coplanar, and two bass radiator elements in every group of bass radiator group (3), which are symmetrically mounted on, to be mutually parallel
On two tank walls of bass babinet (1).
9. single-chamber body sandwich style automobile subwoofer according to claim 1 or 2, it is characterised in that：The bass loudspeaker
The peak of the vibration component of the woofer unit of device (2) shakes with the bass radiator elements of bass radiator group (3)
The peak of dynamic component is in the same plane.
10. single-chamber body sandwich style automobile subwoofer according to claim 1 or 2, it is characterised in that：The bass babinet
(1) minimum volume changes with the vibrating diaphragm area of woofer (2), and the best volume of the bass babinet (1) is raised with bass
The quantity of the woofer unit of sound device (2) linearly changes, i.e. R=C × N, wherein R are the best of the bass babinet (1)
Volume, C are the best volume of the bass babinet (1) of a woofer unit, and N is the bass of the woofer (2)
The number of elements of loudspeaker unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177227.7A CN108632720B (en) | 2017-03-23 | 2017-03-23 | Single-cavity sandwich type automobile subwoofer |
| PCT/CN2018/078500 WO2018171440A1 (en) | 2017-03-23 | 2018-03-09 | Single-cavity sandwich-type automobile subwoofer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177227.7A CN108632720B (en) | 2017-03-23 | 2017-03-23 | Single-cavity sandwich type automobile subwoofer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108632720A true CN108632720A (en) | 2018-10-09 |
| CN108632720B CN108632720B (en) | 2024-01-09 |
Family
ID=63585019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710177227.7A Active CN108632720B (en) | 2017-03-23 | 2017-03-23 | Single-cavity sandwich type automobile subwoofer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108632720B (en) |
| WO (1) | WO2018171440A1 (en) |
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| CN111327992A (en) * | 2018-12-14 | 2020-06-23 | 深圳纽斯声学系统有限公司 | Automobile door subwoofer |
| CN111385708A (en) * | 2018-12-31 | 2020-07-07 | 深圳纽斯声学系统有限公司 | Car sound system based on smart mobile phone |
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| CN113596641A (en) * | 2021-07-30 | 2021-11-02 | 安徽江淮汽车集团股份有限公司 | Bass loudspeaker for automobile |
| CN113938802A (en) * | 2021-09-07 | 2022-01-14 | 联想(北京)有限公司 | Loudspeaker assembly and electronic equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018171440A1 (en) | 2018-09-27 |
| CN108632720B (en) | 2024-01-09 |
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