CN109040914A - A kind of car audio system based on symmetrical balance bass box - Google Patents
A kind of car audio system based on symmetrical balance bass box Download PDFInfo
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- CN109040914A CN109040914A CN201710428011.3A CN201710428011A CN109040914A CN 109040914 A CN109040914 A CN 109040914A CN 201710428011 A CN201710428011 A CN 201710428011A CN 109040914 A CN109040914 A CN 109040914A
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- woofer
- symmetrical balance
- bass box
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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
- H04R5/00—Stereophonic arrangements
- H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads
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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
- H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
- H04R2205/024—Positioning of loudspeaker enclosures for spatial sound reproduction
Abstract
The present invention relates to car audio systems, specifically a kind of car audio system based on symmetrical balance bass box, including the symmetrical balance bass box being separately mounted in automobile and medium and high pitch loudspeaker, symmetrical balance bass box is at least one, each symmetrical balance bass box includes at least one woofer and at least one bass radiator, woofer and bass radiator are built in respectively on the tank wall of symmetrical balance bass box, woofer and the mutually symmetrical balance of bass radiator are arranged, the mounting plane of bass radiator and the mounting plane of woofer are coplanar or parallel；Medium and high pitch loudspeaker is at least one, and 1~2 loudspeaker unit is arranged in each medium and high pitch loudspeaker.The present invention completes the conversion of the electroacoustic in automobile by symmetrical balance bass box and medium and high pitch loudspeaker jointly, the sound quality of high-end car audio system is reached and exceeded with the cost lower than least significant end car audio system, and vehicle production technology simplifies, cost reduces.
Description
Technical field
The present invention relates to car audio system, specifically a kind of automobile audio system based on symmetrical balance bass box
System.
Background technique
With the progress of science and technology, people require the sound quality of automobile audio higher and higher；And to currently, published
Car audio system solution is traditional technology bass box+medium and high pitch loudspeaker.In Fujian, science tech publishing house is in 2008
In " loudspeaker and the speaker design manual " published July in year, closed speaker (page 60~67), open type speaker (67 are disclosed
Page~77), passive radiation speaker (page 77~78).The automobile bass box of these disclosed traditional technology production is following four object
Manage structure:
1. integrated car bass box, i.e. woofer are arranged on independent bass cabinet, independent bass is utilized
The tank-volumes that 20~30 liters of cabinet generate bass.
2. bodywork-type automobile bass box, i.e. woofer are mounted on the cabinet of the certain space of car body formation,
Bass cabinet is made using 20~30 liter capacities that vehicle body cabinet is formed.
3. standby luggage van bass box, woofer is arranged in compartment after being isolated with standby luggage compartment
On window platform, using 500 liters of standby luggage compartment or so of volume come as bass cabinet.
4. car door bass box, woofer is mounted in car door, formed using the outer wall and inner wall of car door
Interlayer space make bass cabinet.
The above orthodox car bass box will use 6.5 inches~12 inches of heavy caliber woofer, largely also need
It wants ultra-thin, special processes is needed to manufacture, cost is very high, and setting is difficult；In addition, car door and back in-support carriage can not seal, gas leakage,
Real bass box cannot be formed, and that not to be excessive be exactly volume is too small, is not able to satisfy bass box volume requirement；Therefore, bass
Poor effect.And valuable car body can utilize to do the local very limited of bass box, it is necessary to be set again to vehicle car body
Meter, volume are difficult to meet the requirements, and sealing technology is complicated difficult.The automobile bass box of traditional technology existing in this way is formed body
Product is big, and car installation sealing technology is complicated difficult, at high cost, the drawback of bass effect difference.And automobile audio system traditional in this way
System solution has been continued to use 50 years or more.
Summary of the invention
In order to solve the above problem existing for conventional car stereo, the purpose of the present invention is to provide one kind based on symmetrical flat
The car audio system of weighing apparatus bass box.The car audio system reaches home theater with automobile mounted sound system is realized with a low cost
Effect.
The purpose of the present invention is achieved through the following technical solutions:
The present invention includes the symmetrical balance bass box and medium and high pitch loudspeaker being separately mounted in automobile, wherein symmetrical balance
Bass box is at least one, and each symmetrical balance bass box includes at least one woofer and at least one bass spoke
Emitter, the woofer and bass radiator are built in respectively on the tank wall of the symmetrical balance bass box, and the bass is raised
Sound device and the mutually symmetrical balance of bass radiator are arranged, the mounting plane of the bass radiator and the mounting plane of woofer
It is coplanar or parallel；The medium and high pitch loudspeaker is at least one, and 1~2 loudspeaker is arranged in each medium and high pitch loudspeaker
Unit, when 1 loudspeaker unit is arranged in medium and high pitch loudspeaker, which is full frequency speaker unit, high in the middle
In sound loudspeaker when 2 loudspeaker units of setting, a loudspeaker unit is full frequency speaker unit, another is tweeter
Device unit；
Wherein: the symmetrical balance bass box be installed on the position in automobile be located in front left car door, front right car door
In upper, rear left car door, in rear right car door, on rear window platform, in back in-support carriage, under skipper's under-seat or assistant driver seat
In side one at or one at more than；
The medium and high pitch loudspeaker be installed on the position in automobile be located at the top of front left car door, front right car door it is upper
Portion, the top of rear left car door, the top of rear right car door, on left A column, on right A column, on rear window platform or instrument desk in one
More than at place or one；
The medium and high pitch loudspeaker is mounted in Hi-Mid speaker, which is installed on the inside of the automobile；
The Hi-Mid speaker is closed box or is opening cabinet, is mounted in the cabinet of symmetrical balance bass box；
The woofer of the symmetrical balance bass box is identical as bass radiator quantity, each woofer with it is each low
Sound radiator corresponds, and the front and back of the woofer and bass radiator is symmetrical arranged；
The woofer and bass radiator of the symmetrical balance bass box are two, woofer and bass spoke
Emitter is arranged in mutually symmetrically on the preceding tank wall or rear box wall of the symmetrical balance bass box；
The bass radiator of the symmetrical balance bass box is one, and woofer is two, the two bass loudspeakers
Device is symmetry axis around the central axis of bass radiator, is symmetricly set on the two sides of bass radiator；
The woofer of the symmetrical balance bass box is one, and bass radiator is two, the radiation of the two basses
Device is symmetry axis around the central axis of woofer vibrating diaphragm, is symmetricly set on the two sides of woofer；
The vibrating diaphragm of the woofer is reciprocally coplanar or parallel with the vibrating diaphragm plane of the bass radiator；
The symmetrical balance bass box passes through the independent subwoofer function all the way for the car audio player being mounted in automobile
Rate output driving, the car audio player be " 2.1 ", " 4.1 ", " 5.1 " or " 7.1 " system, wherein " 2 ", " 4 ", " 5 " and
Each road full range power output of " 7 " is separately connected corresponding each medium and high pitch loudspeaker, and " .1 " bass power output connects institute
State symmetrical balance bass box；
The car audio system further includes car audio player, and four road function of automobile is equipped in the car audio player
Integrated circuit is put, when four road power amplifier integrated circuit of automobile is four road BTL power amplifier, the two-way in the input of four tunnel audio signals is still
Keep former full range audio signal input constant, the output of this two-way full range audio power is separately connected the medium and high pitch loudspeaker；Separately
Two-way full range audio input signal first inputs low-pass filter, and the low-frequency audio signal of synthesis all the way of low-pass filter output is defeated again
Enter and inputs the input terminal to link together, this two-way low frequency power output difference to the another two-way of four road power amplifier integrated circuit of automobile
Connect the different woofers in different the symmetrical balance bass box or the same symmetrical balance bass box.
Advantages of the present invention and good effect are as follows:
1. present invention employs symmetrical balance bass box+medium and high pitch loudspeaker system scheme, make that vehicle is low, Hi-Mid
It can obtain playing sound quality well.
2. present invention employs symmetrical balance bass boxes, and are provided with multiple woofer units and bass in cabinet
Radiator, they complete electroacoustic conversion by the interaction of sound wave jointly.Reduce required tank-volumes significantly, from 20~
30 liters are kept to less than 2.6 liters, and weight is greatly reduced, thinner, solve traditional technology bass box it is very large in automobile not
It is easy to install to use problem, it can easily be placed under the seat of car door and driver and copilot or rear window platform, back in-support carriage
Or the place of other interior very little.
3. improving electro-acoustic conversion efficiency present invention employs more woofer units, also substantially increasing bass
The power of case；Meanwhile the power that every woofer unit is born reduces, the voice coil of woofer unit, which is displaced, to be reduced,
Reduce the electroacoustic slewing distortion of bass box.
4. the mechanics for realizing woofer and bass radiator is symmetrical present invention employs symmetrical balance physical structure
Balance drastically reduces the mechanical twisting of electroacoustic conversion in this way, while making bass boost, greatly reduces bass box case
The vibration of body, and reduce vibratory murmur.
5. the present invention overcomes conventional bass case in small volume, bass effect sharply declines the drawbacks of, the present invention is in small sound
Bass reduction is still very good when amount, realizes the bass reduction balance of the big volume of bass and small volume well.
6. The present invention reduces the 90% of bass box volume, and light-weight, more conducively ID design.
7. small-bore common woofer of the invention, such as with 3.5 cun of common woofer substitutions 6.5 inches~10
Inch is specifically designed and the ultra-thin woofer of specialized processes, and materials are few, at low cost, is readily produced manufacture.
8. present invention reduces the conversions of the electroacoustic of car door to shake, car door service life and automobile reliability are improved.
9. symmetrical balance bass box of the invention is independent closed cabinet, the low of the opening bass box of traditional technology is avoided
Sound delay, improves audio response speed, bass effect is more preferably.
10. this invention removes the wind that the phase-reversing tube of tradition opening bass box and its outlet sound mouth generate to make an uproar, bass information stream
The elimination of transmitted noise keeps the bass played purer.
11. present invention uses small-bore woofers and small size bass cabinet, and oneself itself do not depend on automobile
Car body, the complete independent bass box of self-contained are easier vehicle complete vehicle design, conveniently.It can reduce vehicle body cost, reduce zero
Number of packages amount simplifies and manufactures mounting process, reduces the cost of automobile itself.
12. the present invention is light-weight, car weight is reduced, oil consumption is reduced, keeps vehicle more environmentally protective.
13. the position top of car door is arranged in medium and high pitch loudspeaker of the invention, can obtain better Sound image localization and
Better Hi-Mid sound quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention two；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention three；
Fig. 4 is the structural schematic diagram of the embodiment of the present invention four；
Fig. 5 is the structural schematic diagram of the embodiment of the present invention five；
Fig. 6 is the structural schematic diagram of the embodiment of the present invention six；
Fig. 7 is the structural schematic diagram of the embodiment of the present invention seven；
Fig. 8 is the structural schematic diagram of the embodiment of the present invention eight；
Fig. 9 is the structural schematic diagram of the embodiment of the present invention nine；
Figure 10 A is the schematic diagram of internal structure of symmetrical balance bass box in the embodiment of the present invention one；
Figure 10 B is the bottom view of Figure 10 A；
Figure 11 A is the schematic diagram of internal structure of medium and high pitch loudspeaker in the embodiment of the present invention two；
Figure 11 B is the bottom view of Figure 11 A；
Figure 12 A is the schematic diagram of internal structure of symmetrical balance bass box in the embodiment of the present invention four；
Figure 12 B is the left view of Figure 12 A；
Figure 13 A is the schematic diagram of internal structure of symmetrical balance bass box in the embodiment of the present invention three；
Figure 13 B is the right side view of Figure 13 A；
Figure 14 A is the schematic diagram of internal structure of symmetrical balance bass box in the embodiment of the present invention nine；
Figure 14 B is the left view of Figure 14 A；
Figure 15 is the structural schematic diagram of the embodiment of the present invention ten；
Figure 16 A is the schematic diagram of internal structure of symmetrical balance bass box in the embodiment of the present invention two；
Figure 16 B is the left view of Figure 16 A；
Figure 17 A is the schematic diagram of internal structure of symmetrical balance bass box in the embodiment of the present invention ten；
Figure 17 B is the right view of Figure 17 A；
Figure 18 is the four road power amplifier schematic diagram of automobile of car audio player of the present invention；
Wherein: 1 is automobile, and 2 be symmetrical balance bass box, and 3 be medium and high pitch loudspeaker, and 4 be woofer, and 5 be bass
Radiator, 6 be Hi-Mid speaker, and 7 be interior space, and 8 be front left car door, and 9 be front right car door, and 10 be left A column, and 11 be the right side
A column, 12 be rear left car door, and 13 be rear right car door, and 14 be rear auto window platform, and 15 be back in-support carriage, and 16 are positive driver seat,
17 be assistant driver seat, and 18 be instrument desk, and 19 be car audio player, and 20 be four road power amplifier integrated circuit of automobile, and 21 be low
Bandpass filter.
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
It include being separately mounted to interior space 7 in automobile 1 the present invention is based on the car audio system of symmetrical balance bass box
In symmetrical balance bass box 2 and medium and high pitch loudspeaker 3, wherein symmetrical balance bass box 2 be at least one (can be 1~6),
Medium and high pitch loudspeaker 3 is at least one (can be 2~20), and each medium and high pitch loudspeaker 3 can be by 1~2 Hi-Mid loudspeaking
Device unit composition is full frequency speaker unit when if it is 1, and when if it is 2, one is full frequency speaker unit, another
It is only high pitch loudspeaker unit.
Each symmetrical balance bass box 2 includes at least one woofer 4 and at least one bass radiator 5, this is low
Sound loudspeaker 4 and bass radiator 5 are built in respectively on the tank wall of symmetrical balance bass box 2.The unit bore of woofer 4
It is 3 inches~4.5 inches, including an at least woofer unit (can be 1~4)；Bass radiator 5 can be 1~4
It is a, it is separately mounted on the tank wall of symmetrical balance bass cabinet 2, the mounting plane of bass radiator 5 and the peace of woofer 4
Fill co-planar or parallel.Woofer 4 is made of identical woofer unit, these woofer units are symmetrical
Setting；All woofer units are installed on the same tank wall of symmetrical balance bass box 2, and are electroacoustic with connected
It connects.
The minimum volume of symmetrical balance bass box 2 is different with the vibrating diaphragm area of woofer 4 and changes, such as one straight
Minimum volume needed for diameter 92mm, conical 3.5 inches of woofer units is 1 liter, 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 sharply decline when reduction, and bass conical for one is raised
Minimum volume needed for sound device unit is: it be 2 liters, 4.5 inches is 4 liters that 3 inches, which are 1 liter, 4 inches for 0.4 liter, 3.5 inches,.Single
The required minimum volume of oval woofer unit is raised by its vibrating diaphragm area referring to the similar conical bass of vibrating diaphragm area
Sound device unit.The best volume of symmetrical balance bass box 2 linearly changes with the quantity of the woofer unit of woofer 4
Become, i.e. R=C × N, wherein R is the best volume of symmetrical balance bass box 2, and C is the symmetrical balance of a woofer unit
The best volume of bass box 2, N are the number of elements of the woofer unit of woofer 4.
It (can be 1~4 that the woofer unit of woofer 4 in each symmetrical balance bass box 2, which is at least one,
Only), it can be conical woofer unit, be also possible to the woofer unit of ellipse.Conical bass loudspeaker
The bore of device unit is 3 inches~4.5 inches, and the too big not only bass box volume of bore is too big, is not easy to be arranged in the car, and bass
Effect is also bad, also increase cost；Too small woofer element number will increase, not only increased costs, bass effect
Bad, manufacturing process also can be complicated.Wherein using the circular cone woofer unit of 3.5 inch diameter 92mm as optimal selection.?
It can be a woofer 4 and a bass radiator 5, at this moment, woofer 4 and low in symmetrical balance bass box 2
Sound radiator 5 will be one in front and one in back symmetricly set on the front and back tank wall of symmetrical balance bass box 2；When in symmetrical balance bass box 2
When being made of a bass radiator 5 and two woofers 4 it is necessary to the vibrating diaphragm central axis of bass radiator 5 be pair
Claim axis, two woofers 4 is symmetricly set on to the two sides of bass radiator 5, the mounting plane of two woofers 4 can
With coplanar with the mounting plane of bass radiator 5, it is flat that two woofers 4 can also be mounted on to the installation of bass radiator 5
On the tank wall of aspectant symmetrical balance bass box 2；When low by a woofer 4 and two in symmetrical balance bass box 2
It is necessary to the vibrating diaphragm central axis using woofer 4 as symmetry axis when sound radiator 5 forms, two bass radiators 5 are symmetrically set
It sets in the two sides of this central axis, the mounting plane of two bass radiators 5 can be total with the mounting plane of woofer 4
The case of the symmetrical balance bass box 2 on 4 mounting plane opposite of woofer can also be arranged in two bass radiators 5 by face
On wall.
In this way, symmetrical balance bass box 2 just has a style of one's own, becomes the ultra-thin bass box of ultra-small volume, volume only has tradition
/ 10th of bass box.Symmetrical balance bass box 2 is just easily arranged in automobile 1, can be set in automobile 1
Position be located in front left car door 8, in front right car door 9, in rear left car door 12, in rear right car door 13, rear window platform
On 14, in back in-support carriage 15, in 17 lower part of 16 lower part of skipper's seat or assistant driver seat one at or one at more than it is any can
With the place of placement.Corresponding film group bass box 2 can be one, be also possible to multiple, while can also mix and set in automobile 1
Set, such as it is some setting just, under assistant driver seat 16,17, other be arranged on rear window platform 14；Or there is some be arranged four
In a car door, other settings just, under assistant driver seat 16,17 or other settings are on rear window platform 14 or another
In a little setting back in-support carriages 15.
Medium and high pitch loudspeaker 3 can be directly installed on each corresponding position in automobile 1, such as be installed on the position in automobile 1
Positioned at the top of front left car door 8, the top of front right car door 9, the top of rear left car door 12, rear right car door 13 it is upper
In portion, left A column 10, on right A column 11, on rear window platform 14 or instrument desk 18 in one at or one at more than.It can also be by middle height
The medium and high pitch loudspeaker unit of sound loudspeaker 3 is first mounted in Hi-Mid speaker 6, then Hi-Mid speaker 6 is arranged in automobile 1
Corresponding position.Hi-Mid speaker 6 can be fully sheathed case, be also possible to opening box (i.e. cabinet is equipped with opening).Hi-Mid is raised
Sound device 3 can be set on the top of front left and right car door 8,9 and rear left and right car door 12,13, and installation site will be as close as possible to upper
Portion, such hearing effect is best, also can be set on the left and right A column 10,11 of automobile 1, also can be set in rear window platform 14
On upper or instrument desk 18, while setting can also be mixed etc..Furthermore it is possible to be arranged on the instrument desk 18 of automobile 1 high in one
Sound loudspeaker 3, as center loudspeaker and preposition left and right speakers and around left and right speakers and symmetrical balance bass box 2 in vehicle
5.1 or 7.1 household audio and video systems are formed in interior space 7.
Symmetrical balance bass box 2 passes through the independent subwoofer function all the way for the car audio player 19 being mounted in automobile 1
Rate output driving, the car audio player 19 be " 2.1 ", " 4.1 ", " 5.1 " or " 7.1 " system, wherein " 2 ", " 4 ", " 5 " and
Each road power output of " 7 " connects the corresponding medium and high pitch loudspeaker 3, and " .1 " bass power output connects the symmetrical balance
Bass box 2.
Embodiment one
As shown in Fig. 1, Figure 10 A and Figure 10 B, the symmetrical balance bass box 2 of the present embodiment is cylindrical shape, in symmetrical balance
A woofer 4 is arranged in bass box 2, is mounted on the preceding tank wall of symmetrical balance bass box 2: woofer 4 can be with
It is made of a woofer unit, is also possible to more, each woofer unit can be circular, be also possible to
Ellipse, most handy conical woofer unit, bore is 3 inches~4.5 inches；The woofer of the present embodiment
4 be the round woofer unit of a diameter 92mm.A bass radiator is additionally provided in symmetrical balance bass box 2
5, bass radiator is also known as passive passive low frequency radiation device or passive loudspeaker is also empty loudspeaker, does not have magnet and voice coil, only
There are vibrating diaphragm and its support device；It can be it is circular, be also possible to ellipse or it is rectangular, shape can be plate
It is also possible to conical.The size of the bass radiator 5 of the present embodiment is diameter 120mm.This bass radiator 5 is mounted on
On the rear box wall of the symmetrical balance bass box 2 on 4 opposite of woofer.
2 cabinet of symmetrical balance bass box can use the manufacture such as plastics, metal and timber, can use the method system of die sinking injection molding
It makes.The symmetrical balance bass box 2 of the present embodiment is manufactured with the method for die sinking injection molding, and outer dimension is diameter 165mm, thickness
72mm。
After symmetrical balance bass box 2 is made, it can be installed in automobile 1 together with medium and high pitch loudspeaker 3.The present embodiment
Symmetrical balance bass box 2 be two, medium and high pitch loudspeaker 3 be four；Before two symmetrical balance bass boxes 2 are separately positioned on
The lower part of left and right car door 8,9 is mounted on the volume space that the inside and outside compartment wall of car door is formed.Four medium and high pitch loudspeakers 3
For the full frequency speaker unit of φ 38mm~φ 77mm, be separately mounted to front left and right car door 8,9 and rear left and right car door 12,
13 top, when setting, are top as far as possible in the installation site of car door by medium and high pitch loudspeaker 3, can obtain best listen in this way
Audio fruit.Medium and high pitch loudspeaker 3 also can be set on left and right A column 10,11, or be arranged in rear window platform 14 and instrument desk 18
On, the present embodiment full frequency speaker unit of four φ 45mm is mounted on the top of four car doors.
Embodiment two
As shown in Fig. 2, Figure 11 A and Figure 11 B, Figure 16 A and 16B, the difference between this embodiment and the first embodiment lies in: this implementation
The symmetrical balance bass box 2 of example is four, and the woofer 4 of this four symmetrical balance bass boxes 2 is one, bass radiation
Device 5 is two, and two bass radiators 5 are mounted on the tank wall of the symmetrical balance bass box 2 on 4 opposite of woofer, and
Two bass radiators 5 are symmetrical arranged by symmetry axis of the central axis of woofer 4.Four symmetrical balance bass boxes 2 divide
The lower part of front left and right car door 8,9 and the lower part of rear left and right car door 12,13 are not set；In addition the Hi-Mid of the present embodiment
Loudspeaker 3 is four, they are first mounted on Hi-Mid speaker 6 respectively, then this 4 Hi-Mid speakers 6 are installed to four vehicles
The top of compartment door, the Hi-Mid speaker 6 of the present embodiment are fully sheathed case.Remaining is and embodiment one is identical.
Embodiment three
As shown in Fig. 3, Figure 13 A and Figure 13 B, the difference between this embodiment and the first embodiment lies in: the symmetrical of the present embodiment is put down
The bass box 2 that weighs is one, and the woofer 4 in the symmetrical balance bass box 2 is two woofer units, bass radiation
The bass radiator elements of device 5 are two, and two bass radiator elements are symmetrically disposed in two woofer units
Two sides, and woofer 4 and bass radiator 5 are all disposed on the tank wall of the same symmetrical balance bass box 2, two basses
Loudspeaker 4 is φ 92mm circular cone woofer, and two bass radiators 5 are rectangle, having a size of 90mm × 125mm,
The middle part of rear window platform 14 is arranged in the symmetrical balance bass box 2 of the present embodiment.Remaining is and embodiment one is identical.
Example IV
As shown in Fig. 4, Figure 12 A and Figure 12 B, the present embodiment and the difference of embodiment three are: the symmetrical of the present embodiment is put down
The bass box 2 that weighs is one or two, and the lower section of skipper's seat 16 and/or assistant driver seat 17 is arranged in.Pair of the present embodiment
The bass radiator 5 of balance bass box 2 be referred to as one, woofer 4 is two, two woofers 4 and bass radiation
Device 5 is mounted on the same tank wall of symmetrical balance bass box 2, and two woofers 4 are with the center of bass radiator 5
Axis is symmetry axis, is symmetrically disposed in the two sides up and down of bass radiator 5, and bass radiator 5 is rectangle, size are as follows:
130mm×160mm.Remaining is and embodiment three is identical.
Embodiment five
As shown in figure 5, the difference between this embodiment and the first embodiment lies in: the medium and high pitch loudspeaker 3 of the present embodiment is two,
It is separately positioned on the top of front left and right car door 8,9, remaining is and embodiment one is identical.
Embodiment six
As shown in fig. 6, the difference between the present embodiment and the second embodiment lies in that the medium and high pitch loudspeaker 3 of the present embodiment be five,
It is one of to be arranged on instrument desk 18 as center-channel speaker, 5.1 household audio and video systems are formed, remaining equal and embodiment two-phase
Together.
Embodiment seven
As shown in fig. 7, the difference between this embodiment and the first embodiment lies in: the medium and high pitch loudspeaker 3 of the present embodiment is two,
The two medium and high pitch loudspeakers 3 are separately positioned on left A column 10 and right A column 11.Remaining is and embodiment one is identical.
Embodiment eight
As shown in figure 8, the difference between this embodiment and the first embodiment lies in: rear left and right compartment is set in example 1
The medium and high pitch loudspeaker 3 of door 12,13 changes installation site, the left end that rear window platform 14 is arranged in and right end.Remaining is equal and implements
Example one is identical.
Embodiment nine
As shown in Fig. 9, Figure 14 A and Figure 14 B, the difference between this embodiment and the first embodiment lies in: the Hi-Mid of the present embodiment
Loudspeaker 3 is two, and the medium and high pitch loudspeaker 3 of the two is first separately mounted in symmetrical balance bass box 2, then the two are right
Balance bass box 2 is claimed to be arranged in front left and right car door 8,9.Remaining is and embodiment one is identical.
Embodiment ten
As shown in Figure 15, Figure 17 A and Figure 17 B, the difference of the present embodiment and example IV is: the symmetrical of the present embodiment is put down
Weighing apparatus bass box 2 is arranged in the back in-support carriage 15 of automobile 1, and the top of four car doors, symmetrical balance is arranged in medium and high pitch loudspeaker 3
Woofer 4 is two woofer units in bass box 2, and bass radiator 5 is a bass radiator elements；This two
Woofer unit is symmetricly set on one on the other on a tank wall of symmetrical balance bass box 2, and with bass spoke
The central axis of emitter 5 is symmetrical arranged for symmetry axis；The symmetrical flat of 4 opposite of woofer is arranged in one bass radiator 5
The positive middle part of weighing apparatus 2 tank wall of bass box.Remaining is identical with example IV.The present embodiment can be applied to wing-rooms on either side of a one-story house automobile or SUV vehicle.
Embodiment 11
As shown in figure 18, the four road power amplifier integrated circuit 20 of automobile of the present embodiment is built in car audio player 19,
It exports four road power amplifiers, such as TDA7388, TDA7850 for existing BTL (bridge push pull circuit).The present embodiment has been abandoned logical
The method that the four road full range audio signals of Chang Chuantong directly input, and use two-way as tradition, two-way full range audio is believed
Number it is directly inputted in two inputs of four road power amplifier integrated circuit of automobile, and another two-way full range audio signal is first input into low pass
The input of filter 21, low-pass filtered device 21 are synthesized low frequency signal after filtering all the way and input to four road power amplifier collection of automobile again
The input terminal to link together at the another two input terminal of circuit 20；The two-way full range of four road power amplifier integrated circuit 20 of automobile output
Audio power respectively drives medium and high pitch loudspeaker 3, the another two-way low frequency power output driving of four road power amplifier integrated circuit 20 of automobile
The woofer unit of the different woofers 4 of symmetrical balance bass box 2 or the same symmetrical balance bass box 2.Low pass
The cutoff frequency of filter 21 is 50~300 hertz, and the present embodiment is 120 hertz, and the four road power amplifier of automobile of the present embodiment is integrated
Circuit 20 is TDA7388.
The operation principle of the present invention is that:
When full range audio power is applied to each medium and high pitch loudspeaker 3 in automobile 1, medium and high pitch loudspeaker 3 completes electroacoustic
Conversion, by the interior space 7 of Hi-Mid acoustic radiating to automobile 1, due to its bore very little, vibrating diaphragm very little is very light, and voice coil is also very
It is small very light, thus Hi-Mid can be completed into electroacoustic conversion well, generate good, limpid middle height loud, parsing power is high
Sound；Meanwhile installation site leans on top in car door, Sound image localization is good, and space obtains the Hi-Mid sound of home theater in the car
Effect.
When low frequency audio power is applied to woofer 4, the vibrating diaphragm of woofer 4 generates vibration, realizes electroacoustic
Conversion.Since the symmetrical balance bass box 2 where woofer 4 is airtight cavity, when the vibrating diaphragm of woofer 4 is to symmetrical
When balancing direction vibration in bass box 2, the air in symmetrical balance bass box 2 is just had compressed, spring effect at this moment will be generated,
The atmospheric pressure in symmetrical balance bass box 2 is set to be greater than atmospheric pressure, to drive the bass radiator elements of bass radiator 5
Vibrating diaphragm shaken to outside symmetrical balance bass box 2.When the vibrating diaphragm of woofer 4 is put down to symmetrical simultaneously by bass power drive
When the bass cabinet 2 that weighs shakes outside, the air spring in compressed symmetrical balance bass box 2 discharges, and the restoring force generated helps
The vibrating diaphragm for pushing away woofer 4 further decreases the pressure in symmetrical balance bass box 2, makes in symmetrical balance bass box 2
Pressure is further below atmospheric pressure, thus shake the vibrating diaphragm of bass radiator elements into symmetrical balance bass box 2 simultaneously, this
Sample has not only increased considerably tweeters diaphragmse area (increasing about 2 times or so), while increases vibrating diaphragm amplitude, makes to generate low
Speech wave obtains not depending on tank-volumes again while enhancing (tank-volumes of the subwoofer of traditional technology being generally 20 liters~50
It rises).Can being shaken with small-bore common 3.5 inches of woofer and 2.6 liters of small box in this way, thick and heavy,
Flexible bass.In addition, symmetrical balance bass box 2 is a closed cabinet, generated in this symmetrical balance bass box 2
Air spring reaction force reduces each woofer voice coil displacement, and shares audio function by more woofer units
Rate is further reduced voice coil displacement, reduces electroacoustic slewing distortion degree while increasing bass box power.Simultaneously because low
Sound radiator 5 is arranged with the mutually symmetrical balance of corresponding woofer 4, eliminates vibration torsion, thus greatly reduces low
The mechanical oscillation and displacement of speaker.
Present invention reduces the 90% of bass box volume, and it is light-weight, with the small-bore common low frequency loudspeaker of 3.5 inch
Device and 2.6 liters of small box can obtain the effect of 8 cun or more woofers and big cabinet traditional technology subwoofer, make low
Sound greatly enhances, and more thick and heavy, shock, dive is deeper, distortion is smaller, and cost is lower.Meanwhile medium and high pitch loudspeaker 3
Clear, loud middle pitch and high pitch can be generated again, to make the entire basic, normal, high sound of interior space 7 that can be restored well
It plays, reaches the audio of home theater；High-end automobile audio is met or exceeded with the cost lower than least significant end car audio system
The sound quality of system, and technique is simpler, component are reduced, and manufacture is easier, and volume is smaller, thinner, are easier to design, while from automobile
Sound equipment itself and car body, which manufacture two aspects, reduces vehicle complete vehicle cost.
Claims (12)
1. a kind of car audio system based on symmetrical balance bass box, it is characterised in that: including being separately mounted in automobile (1)
Symmetrical balance bass box (2) and medium and high pitch loudspeaker (3), wherein symmetrical balance bass box (2) is at least one, each described
Symmetrical balance bass box (2) includes at least one woofer (4) and at least one bass radiator (5), the bass loudspeaker
Device (4) and bass radiator (5) are built in respectively on the tank wall of the symmetrical balance bass box (2), the woofer (4)
It is arranged with the mutually symmetrical balance of bass radiator (5), the mounting plane of the bass radiator (5) and the peace of woofer (4)
Fill co-planar or parallel；The medium and high pitch loudspeaker (3) is at least one, setting 1 in each medium and high pitch loudspeaker (3)
~2 loudspeaker units, when 1 loudspeaker unit of setting in medium and high pitch loudspeaker (3), which is full range loudspeaking
Device unit, in the medium and high pitch loudspeaker (3) when 2 loudspeaker units of setting, a loudspeaker unit be full frequency speaker unit,
Another is high pitch loudspeaker unit.
2. the car audio system according to claim 1 based on symmetrical balance bass box, it is characterised in that: described symmetrical flat
Weighing apparatus bass box (2) be installed on the position in automobile (1) be located on front left car door (8), in front right car door (9), rear left compartment
On door (12), on rear right car door (13), on rear window platform (14), in back in-support carriage (15), it is below skipper's seat (16) or secondary
In below driver seat (17) one at or one at more than.
3. the car audio system according to claim 1 based on symmetrical balance bass box, it is characterised in that: the Hi-Mid
Loudspeaker (3) be installed on the position in automobile (1) be located at the top of front left car door (8), front right car door (9) top, after
The top of left car door (12), the top of rear right car door (13), on left A column (10), on right A column (11), rear window platform (14)
On instrument desk (18) in one at or one at more than.
4. the car audio system according to claim 1 based on symmetrical balance bass box, it is characterised in that: the Hi-Mid
Loudspeaker (3) is mounted in Hi-Mid speaker (6), which is installed on the inside of the automobile (1).
5. the car audio system according to claim 4 based on symmetrical balance bass box, it is characterised in that: the Hi-Mid
Speaker (6) is closed box or is opening cabinet, is mounted in the cabinet of symmetrical balance bass box (2).
6. the car audio system according to claim 1 based on symmetrical balance bass box, it is characterised in that: described symmetrical flat
The woofer (4) of weighing apparatus bass box (2) is identical as bass radiator (5) quantity, and each woofer (4) and each bass radiate
Device (5) corresponds, and the front and back of the woofer (4) and bass radiator (5) is symmetrical arranged.
7. the car audio system according to claim 1 based on symmetrical balance bass box, it is characterised in that: described symmetrical flat
The woofer (4) and bass radiator of weighing apparatus bass box (2) are two, and woofer (4) and bass radiator (5) are mutual
To be symmetrically disposed on the preceding tank wall or rear box wall of the symmetrical balance bass box (2).
8. the car audio system according to claim 1 based on symmetrical balance bass box, it is characterised in that: described symmetrical flat
The bass radiator (5) of weighing apparatus bass box (2) is one, and woofer (4) is two, the two woofers (4) surround
Bass radiator (5) central axis be symmetry axis, be symmetricly set on the two sides of bass radiator (5).
9. the car audio system according to claim 1 based on symmetrical balance bass box, it is characterised in that: described symmetrical flat
The woofer (4) of weighing apparatus bass box (2) is one, and bass radiator (5) is two, the two bass radiators (5) surround
Woofer (4) vibrating diaphragm central axis be symmetry axis, be symmetricly set on the two sides of woofer (4).
10. according to claim 1,6,7,8 or 9 car audio system based on symmetrical balance bass box, it is characterised in that:
The vibrating diaphragm of the woofer (4) is reciprocally coplanar or parallel with the vibrating diaphragm plane of the bass radiator (5).
11. the car audio system according to claim 1 based on symmetrical balance bass box, it is characterised in that: described symmetrical
Balance bass box (2) passes through the independent subwoofer power output all the way for the car audio player (19) being mounted in automobile (1)
Driving, which is " 2.1 ", " 4.1 ", " 5.1 " or " 7.1 " system, wherein " 2 ", " 4 ", " 5 " and " 7 "
Each road full range power output be separately connected corresponding each medium and high pitch loudspeaker (3), " .1 " bass power output connects institute
State symmetrical balance bass box (2).
12. the car audio system according to claim 1 based on symmetrical balance bass box, it is characterised in that: the automobile
Sound system further includes car audio player (19), and the integrated electricity of four road power amplifier of automobile is equipped in the car audio player (19)
Road (20), when four road power amplifier integrated circuit (20) of automobile is four road BTL power amplifier, the two-way in the input of four tunnel audio signals is still
Keep former full range audio signal input constant, the output of this two-way full range audio power is separately connected the medium and high pitch loudspeaker (3)；
Another two-way full range audio input signal first inputs low-pass filter (21), the synthesis bass all the way of low-pass filter (21) output
The another two-way that frequency signal inputs to four road power amplifier integrated circuit (20) of automobile again inputs the input terminal to link together, this two-way is low
Frequency power output is separately connected in different the symmetrical balance bass box (2) or the same symmetrical balance bass box (2) not
Same woofer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428011.3A CN109040914A (en) | 2017-06-08 | 2017-06-08 | A kind of car audio system based on symmetrical balance bass box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428011.3A CN109040914A (en) | 2017-06-08 | 2017-06-08 | A kind of car audio system based on symmetrical balance bass box |
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| Publication Number | Publication Date |
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| CN109040914A true CN109040914A (en) | 2018-12-18 |
Family
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| CN201710428011.3A Pending CN109040914A (en) | 2017-06-08 | 2017-06-08 | A kind of car audio system based on symmetrical balance bass box |
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