CN103796129A - Coaxial-line array sound box - Google Patents
Coaxial-line array sound box Download PDFInfo
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- CN103796129A CN103796129A CN201210435903.3A CN201210435903A CN103796129A CN 103796129 A CN103796129 A CN 103796129A CN 201210435903 A CN201210435903 A CN 201210435903A CN 103796129 A CN103796129 A CN 103796129A
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Abstract
The invention discloses a coaxial-line array sound box which includes a box body. A mediant unit and two high-pitch units are arranged in the box body, wherein the mediant unit is arranged at the rear ends of the two high-pitch units and the median unit and the high-pitch units are arranged coaxially in the box body. Two low-pitch units are also arranged in the box body. The two low-pitch units are arrayed symmetrically in a V-shaped mode at the two sides of an axis which the mediant unit and the high-pitch units are at. The coaxial-line array sound box is simple in structure, convenient to use and easy to install in touring.
Description
Technical field
The present invention relates to technology for loudspeaker box field, relate in particular to a kind of coaxial line array audio amplifier.
Background technology
At present, in existing audio amplifier, sensitivity and the power of its compression voice unit and moving-coil bass unit are to have certain limitation; And its body is large, relatively heavy; Can only support the use one to one, increase the quantity of supporting power amplifier; Its space utilization rate is little, and the inconvenience such as installation and transportation.
In view of this, provide the coaxial line array audio amplifier of a kind of built-in function optimization, external body improvement to necessitate.
Summary of the invention
The object of this invention is to provide the coaxial line array audio amplifier of a kind of built-in function optimization, external body improvement.
To achieve these goals, a kind of coaxial line array audio amplifier provided by the invention, it comprises casing, in described casing, be provided with an alto units and two voice units, wherein said alto units is arranged on the rear end of described two voice units, and described alto units and described voice unit are coaxially arranged on described box house; In described casing, be also provided with two bass units, the both sides of the V-shaped axle that is arranged in symmetrically described alto units and described voice unit place of described two bass units.
Further, the acoustic centres spacing between described two bass units is 0.64M.
Further, be also provided with inverted trapezoidal groove in described audio amplifier, on described bass unit, be provided with phase-reversing tube, the opening of described phase-reversing tube is arranged on described inverted trapezoidal groove.
Further, the opening of described phase-reversing tube is triangular in shape.
Further, the impedance of described voice unit is 8 Ω, and the work that is in series of two described voice units; The impedance of described alto units is 16 Ω; The impedance of described bass unit is 6 ohm, and the work that is in series of two described bass units.
A kind of coaxial line array audio amplifier provided by the invention has just been considered the system support of this audio amplifier in design audio amplifier, more leaves for from user's angle the design of considering whole sound box system.By by V-shaped two bass units coaxial both sides that are arranged in voice unit and alto units, and the acoustic centres spacing of two bass units is 0.64M, according to being limited to 240HZ on the available frequency division of the known bass of calculating, the trouble free service lower-frequency limit of 10 cun of middle pitches can arrive 200HZ, so two bass units can drive with the power amplifier of a passage, without separately frequency range work.By V-shaped two bass units coaxial both sides that are arranged in voice unit and alto units, the overall dimension of audio amplifier can be dwindled as far as possible, the arrangement of bass is that V-arrangement is put, because the operating frequency of bass is below 250HZ, the mode that therefore V-type is put can't cause the variation of bass operating frequency response.Because audio amplifier can be realized maximum 3 parallel connections, minimum impedance is not less than 4 Europe, and this unit can obtain 2 times of above driving powers.The concrete impedance of each concrete unit is that voice unit impedance is 16 Europe, the work that is in series of 28 Europe voice units, and alto units impedance is 16 Europe, bass unit impedance is 12 Europe, the work that is in series of 26 Europe bass units.In the time that 3 audio amplifiers are in parallel, minimum impedance is bass, is operated in 4 Europe states, the rated power of a bass is 400W, when 3 audio amplifiers are in parallel, bass gross power is 2400W, and supporting bass power amplifier is 8 Europe 2400W, 4 Europe 4800W just 2 times to the power of bass unit.Voice unit and alto units power amplifier are 8 Europe 1300W, and when 2 of audio amplifiers are in parallel, voice unit part is 8 Europe 320W, reach 4 times of power amplifiers to the power of high pitch, and alto units part is 8 Europe 700W, and power amplifier also approaches 2 times of bass unit power.Finally realize 2 power amplifiers (wherein is 4*1300W, and another is 2*2400w) and can promote the LA212 of 63 frequency divisions, and there is no built-in frequency divider, greatly reduced the quantity of supporting power amplifier.As can be seen here, a kind of coaxial line array loudspeaker box structure provided by the invention simple, easy to use and be easy to flow performance install.
Accompanying drawing explanation
Fig. 1 is a kind of coaxial line array audio amplifier front view provided by the invention;
Fig. 2 is that a kind of coaxial line array audio amplifier shown in Fig. 1 is along A-A to cutaway view.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing, it illustrates principle of the present invention as the part of this specification by embodiment, other aspects of the present invention, and feature and advantage thereof will become very clear by this detailed description.
As shown in Figure 1-2, a kind of coaxial line array audio amplifier provided by the invention, it comprises casing 1, in described casing 1, be provided with an alto units 4 and two voice units 3, wherein said alto units 4 is arranged on the rear end of described two voice units 3, and described alto units 4 is coaxially arranged on described casing 1 inside with described voice unit 3; In described casing 1, be also provided with two bass units 2, the both sides of the V-shaped axle that is arranged in symmetrically described alto units 4 and described voice unit 3 places of described two bass units 2.
By by V-shaped two bass units 2 coaxial both sides that are arranged in voice unit 3 and alto units 4, and the acoustic centres spacing between two bass units 2 is 0.64M, according to being limited to 240HZ on the available frequency division of the known bass unit 2 of calculating, and the trouble free service lower-frequency limit of 10 cun of alto units 4 can arrive 200HZ, so two bass units 2 can drive with the power amplifier of a passage, without separately frequency range work.By V-shaped two bass units 2 coaxial both sides that are arranged in voice unit 3 and alto units 4, the overall dimension of audio amplifier can be dwindled as far as possible, the arrangement of bass is that V-arrangement is put, because the operating frequency of bass is below 250HZ, the mode that therefore V-type is put can't cause the variation of bass operating frequency response.
In this audio amplifier 1, be also provided with inverted trapezoidal groove, on described bass unit 2, be provided with phase-reversing tube, the opening of described phase-reversing tube is arranged on described inverted trapezoidal groove.And this phase-reversing tube opening is triangular in shape.
In order to dwindle to greatest extent the width of audio amplifier, phase-reversing tube opening on bass unit 2 is moved on to both sides, casing rear portion, thus, in the time that many audio amplifiers form curved arrays out of doors, audio amplifier opening is below upward, is easy to cause rainwater to enter box house.The present invention further provides an inverted ladder type groove, and phase-reversing tube opening is arranged on the side of inverted ladder type groove, thereby has solved the problems referred to above dexterously.So design, can be by casing width reduction to 1M, the weight of casing 1 itself is light than the audio amplifier of 1.2M money, and element number only has 5, and whole uses is neodymium magnetic cell, reduced equally the total weight of casing, the weight of LA212 reality is 65KG, thereby greatly reduces the operation easier of installation personnel.
The impedance of described voice unit 3 is 8 Ω, and the work that is in series of two described voice units 3; The impedance of described alto units 4 is 16 Ω; The impedance of described bass unit 2 is 6 ohm, and the work that is in series of two described bass units 2.Because audio amplifier can be realized maximum 3 parallel connections, minimum impedance is not less than 4 Europe, and this unit can obtain 2 times of above driving powers.The concrete impedance of each concrete unit is that voice unit 3 impedances are 16 Europe, the work that is in series of 28 Europe voice units 3, and the impedance of alto units 4 is 16 Europe, the impedance of bass unit 2 is 12 Europe, the work that is in series of 26 Europe bass units 2.In the time that 3 audio amplifiers are connected in parallel, minimum impedance is bass unit 2, is operated in 4 Europe states, the rated power of a bass is 400W, when 3 audio amplifiers are in parallel, bass gross power is 2400W, and supporting bass power amplifier is 8 Europe 2400W, 4 Europe 4800W just 2 times to the power of bass unit.Voice unit 3 and alto units 4 power amplifiers are 8 Europe 1300W, and when two of audio amplifiers are in parallel, voice unit 3 parts are 8 Europe 320W, reach 4 times of power amplifiers to the power of voice unit 3, and alto units 4 parts are 8 Europe 700W, and power amplifier also approaches 2 times of bass unit 2 power.Finally realize 2 power amplifiers (wherein is 4*1300W, and another is 2*2400w) and can promote the LA212 of 63 frequency divisions, and there is no built-in frequency divider, greatly reduced the quantity of supporting power amplifier.As can be seen here, a kind of coaxial line array loudspeaker box structure provided by the invention simple, easy to use and be easy to flow performance install.
For the sound equipment taxi company of the performance of flowing, it is crucial significantly cutting operating costs, the main running cost of sound equipment taxi company is godown rent, cost of transportation, 3 of human costs, a kind of coaxial line array audio amplifier provided by the invention can significantly reduce the expense of storage and transportation, because it has enough little volume.Can greatly reduce human cost, because it is not only enough little, also very light and handy, and also installing/dismounting is very fast, no matter transports, and installs and has all saved a large amount of time and manpower.By using a metal wheel daughter board transportation, 4 audio amplifiers are stacked into one group, the crashproof canvas shroud of outer surface cover one deck, in the time that system is installed, open canvas shroud, shift onto under suspension bracket, once hang 4 audio amplifiers, when dismounting, equally once dismantle 4 audio amplifiers, without by only dismounting, installation and removal institute's time spent has been saved 3 times.And when stacking on lorry, use the transportation of wheel daughter board than using aviation case to save a large amount of spaces, can greatly reduce or use the quantity of lorry.
By doing a power amplifier rack, also possess the suspender member the same with LA212, using this rack as sound box hanging wherein to the top of speaker array simultaneously.2 4*1300W are housed in this rack, the power amplifier of 2 2*2400W, 2 number of units word processor, 1 interface assignment device, interface assignment device is by the input of processor and power amplifier, output is all concentrated and is connected with power supply, only need to be linked into the cable of 1 three-phase 32A the input power joint of interface assignment device when use, can be to the armamentarium power supply in rack.And the audio amplifier cable of audio amplifier line use-Gen 24 cores, an audio amplifier rack can promote maximum 12 LA212 linear array audio amplifiers simultaneously.Wiring and arrangement can complete on ground before array is gone up.Audio amplifier line length can be controlled at 5M left and right, without joining in addition many electric hoist hanging racks, also there is no a large amount of power lines and audio amplifier line, and set-up time and human cost reduce greatly.
As can be seen here, a kind of coaxial line array loudspeaker box structure provided by the invention simple, easy to use and be easy to flow performance install.
Disclosed above is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (5)
1. a coaxial line array audio amplifier, it is characterized in that: it comprises casing, in described casing, be provided with an alto units and two voice units, wherein said alto units is arranged on the rear end of described two voice units, and described alto units and described voice unit are coaxially arranged on described box house;
In described casing, be also provided with two bass units, the both sides of the V-shaped axle that is arranged in symmetrically described alto units and described voice unit place of described two bass units.
2. a kind of coaxial line array audio amplifier according to claim 1, is characterized in that: the acoustic centres spacing between described two bass units is 0.64M.
3. a kind of coaxial line array audio amplifier according to claim 2, is characterized in that: in described audio amplifier, be also provided with inverted trapezoidal groove, on described bass unit, be provided with phase-reversing tube, the opening of described phase-reversing tube is arranged on described inverted trapezoidal groove.
4. a kind of coaxial line array audio amplifier according to claim 3, is characterized in that: the opening of described phase-reversing tube is triangular in shape.
5. a kind of coaxial line array audio amplifier according to claim 4, is characterized in that: the impedance of described voice unit is 8 Ω, and the work that is in series of two described voice units; The impedance of described alto units is 16 Ω; The impedance of described bass unit is 6 ohm, and the work that is in series of two described bass units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435903.3A CN103796129A (en) | 2012-11-05 | 2012-11-05 | Coaxial-line array sound box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435903.3A CN103796129A (en) | 2012-11-05 | 2012-11-05 | Coaxial-line array sound box |
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| CN103796129A true CN103796129A (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210435903.3A Pending CN103796129A (en) | 2012-11-05 | 2012-11-05 | Coaxial-line array sound box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113800A (en) * | 2014-07-25 | 2014-10-22 | 无锡杰夫电声有限公司 | Dumbbell reverse-phase sound box with high pitch compensation |
| CN106488356A (en) * | 2016-12-12 | 2017-03-08 | 广州蓝爵音响设备有限公司 | A kind of small box big acoustic pressure three frequency division alt coaxial sound box |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1500199A (en) * | 1974-03-01 | 1978-02-08 | Allison Acoustics Inc | Direct radiator loudspeaker systems |
| CN201138860Y (en) * | 2008-01-09 | 2008-10-22 | 深圳市三诺电子有限公司 | Multifunctional integrated household video-audio playing system |
| CN201479331U (en) * | 2009-08-28 | 2010-05-19 | 四川湖山电器有限责任公司 | Coaxial sound source structure loudspeaker with alt and alto units |
| CN202340304U (en) * | 2011-10-04 | 2012-07-18 | 苗延明 | High sound pressure mouth-opening-crocodile-shaped linear array sound box |
| CN102655614A (en) * | 2012-03-28 | 2012-09-05 | 广州惠威电器有限公司 | Novel wireless-surrounded sound box |
| CN202841472U (en) * | 2012-07-27 | 2013-03-27 | 曾山 | Coaxial line array-based loudspeaker box |
-
2012
- 2012-11-05 CN CN201210435903.3A patent/CN103796129A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1500199A (en) * | 1974-03-01 | 1978-02-08 | Allison Acoustics Inc | Direct radiator loudspeaker systems |
| CN201138860Y (en) * | 2008-01-09 | 2008-10-22 | 深圳市三诺电子有限公司 | Multifunctional integrated household video-audio playing system |
| CN201479331U (en) * | 2009-08-28 | 2010-05-19 | 四川湖山电器有限责任公司 | Coaxial sound source structure loudspeaker with alt and alto units |
| CN202340304U (en) * | 2011-10-04 | 2012-07-18 | 苗延明 | High sound pressure mouth-opening-crocodile-shaped linear array sound box |
| CN102655614A (en) * | 2012-03-28 | 2012-09-05 | 广州惠威电器有限公司 | Novel wireless-surrounded sound box |
| CN202841472U (en) * | 2012-07-27 | 2013-03-27 | 曾山 | Coaxial line array-based loudspeaker box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113800A (en) * | 2014-07-25 | 2014-10-22 | 无锡杰夫电声有限公司 | Dumbbell reverse-phase sound box with high pitch compensation |
| CN106488356A (en) * | 2016-12-12 | 2017-03-08 | 广州蓝爵音响设备有限公司 | A kind of small box big acoustic pressure three frequency division alt coaxial sound box |
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Application publication date: 20140514 |