CN206042333U - Modular directional PA -system of adjustable carrier wave - Google Patents
Modular directional PA -system of adjustable carrier wave Download PDFInfo
- Publication number
- CN206042333U CN206042333U CN201621091551.4U CN201621091551U CN206042333U CN 206042333 U CN206042333 U CN 206042333U CN 201621091551 U CN201621091551 U CN 201621091551U CN 206042333 U CN206042333 U CN 206042333U
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- module
- directional
- combination type
- carrier wave
- directional loudspeaker
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Abstract
The utility model provides a modular directional PA -system of adjustable carrier wave, includes signal pre -processing module, carrier frequency adjustment module, modulation module, drive circuit module and combination formula directional loudspeaker module. Its combination speaker module comprises directional loudspeaker array module, connected mode between the combination formula directional loudspeaker module has two kinds: one kind is that only physics connection does not have electrical connection, and the another kind is that the connection of existing physics also has electrical connection, or wherein the concatenation of accessible mounting groove is connected to physics, modes such as back frame fixes concatenation was fixed together to the joint, and electrical connection passes through the cable conductor series connection and perhaps connects in parallel together. Through regulating unit dynamic adjustment carrier frequency and speaker module combination concatenation, can effectively solve fixed immutable problem and the limited problem of power of problem, directional loudspeaker overall dimension that current acoustic frequency directional loudspeaker carrier frequency is single, can change vocal watt level in a flexible way simultaneously, improve the directionality, improve people's ear comfort level, different directional loudspeakers of matching that also can be fine.
Description
Technical field
A kind of combination type is adjustable, and carrier wave orients PA-system, belongs to electronic technology field, more particularly to electroacoustic techniquess and ginseng
Amount acoustic array technical field.
Background technology
Audio frequency directional system is a kind of new ideas sound source for producing high directivity audible sound.The proposition of parameter acoustic array is
Directional sound wave beam is produced using the nonlinear propagation effects of sound wave in air and provides theoretical foundation.Audio directional loudspeaker is again
Parametric loudspeaker is referred to as, and the direction propagation of sound is realized using the aerial non-linear interaction of ultrasound wave.Two row are super
Sound wave is propagated in atmosphere, Jing non-linear interactions produce difference frequency and and frequency, the acoustic signals of high frequency decline in atmosphere quickly
Subtract, human ear can obtain audible acoustic intelligence by difference frequency signal.
With the continuous development of audio frequency directional technology, some similar audio directional loudspeakers have been occurred in that now on the market
Product, has a powerful disperser of comparison and low power audio frequency directional sound equipment etc., and the volume of product and power are substantially into certain
Proportional relation, high-power sound wave disperser is used for bird repellent or propagandas directed to communicate at a distance, and the audio frequency directional sound equipment master of small size
If applying to museum, bank, the superfine occasion of business.The characteristics of these products have one common is its small product size and modulating frequency
All it is fixed, and the product power that we are needed in practical application scene is various, and audio frequency directional now used
The sound orientation angle of speaker product, watt level and modulating frequency are fixed and unadjustable, and this is subject to will its application
It is many to limit.
This patent proposes that a kind of adjustable carrier wave of combination type orients PA-system, and it not only can flexibly adjust carrier frequency
Rate, it is also possible to splicing is combined to the sounding panel of product by practical application request.The composability of product can meet difference
To product power or the differentiated demand of volume under application scenarios；Adjustable carrier wave not only makes the sensing of the sent sound of orientation sound equipment
Angle realizes scalable, and flexibly adjusts carrier frequency by way of software and can match compatible more acoustical generator
Part model, also can send product by regulation carrier wave and allow ear to sound more comfortable acoustic information.
The content of the invention
This utility model is not enough for the above, there is provided one kind can flexibly change orientation sound arraying bread board
The combination type orientation PA-system of area, power and modulating frequency.This patent solves above-mentioned technical problem by using following skill
Art scheme is realized：A kind of knockdown adjustable carrier wave orients PA-system, including：Signal pre-processing module, carrier frequency
Adjusting module, modulation module, drive circuit module and combination type directional loudspeaker module.Wherein Signal Pretreatment, at modulation
Reason and drive circuit module, carry out corresponding pretreatment, modulation and power amplification for the audio signal to being input into；Carrier frequency
Rate adjusting module is used for adjusting the frequency range of carrier wave, makes different carrier waves have different characteristics；Combination type directional loudspeaker circuit,
It is connected with the output stage of drive circuit, and is made up of one or more directional loudspeaker modules, by the high frequency direct sound of input
Signal Jing air nonlinearity reciprocal actions are converted into human ear sonic frequency signal.
This utility model adds carrier frequency adjustment module, can change modulating frequency by adjustment unit, and general
Audio directional loudspeaker compare, this utility model changes modulating frequency and becomes very flexibly, to can be very good adaptation and be differently directed
The resonant frequency of speaker, can be very good to adapt to the auditory frequency range of different human ears, adjust audition comfort level so as to reach
Effect, while the rising directional effect with modulating frequency also increases.
This utility model increased a kind of combination type directional loudspeaker module connected mode that conveniently can be extended, Duo Geding
May be mounted in mounting groove to speaker module, be screwed or fixed by snap, it is also possible to by back
The mode of frame connects.Can be by cable serial or parallel connection together between speaker module, this connected mode is consolidated with general
Fixed number amount directional loudspeaker is compared, and this utility model sends sound size, sends sound area in control audio directional loudspeaker
And in terms of power, become eased flexible, while all lifted in terms of human ear comfort level and directional effect is improved, while
Also preferably can adapt to be differently directed the resonant frequency of speaker.
Description of the drawings
Fig. 1 is the system architecture diagram that the adjustable carrier wave of combination type orients PA-system.
Fig. 2 is one embodiment of single combination type directional loudspeaker module.
Fig. 3 is one embodiment of multiple combination type directional loudspeaker modules.
Fig. 4 is the one embodiment at multiple combination type directional loudspeaker module backs.
Specific embodiment
This utility model is intended to the adjustable carrier wave of one combination type of design and orients PA-system, and combines accompanying drawing embodiment is entered
Detailed description is gone, simply to illustrate that the technical scheme, patent includes that thus scope is not restricted to the embodiment.
Fig. 1 is the system architecture diagram that the adjustable carrier wave of combination type orients PA-system.Change carrier frequency mainly to pass through
Adjustment unit selects different frequency gears, so as to simply neatly realize the function of changing carrier frequency.
Fig. 2 is one embodiment of single combination type directional loudspeaker module.Wherein be screw hole position 1 be for fixing
To on specific structure, electrode 2 is used for connecting various combination formula directional loudspeaker module combination type directional loudspeaker module,
Transducer 3 is the elementary cell that can send directional audio signal.
Fig. 3 is one embodiment of multiple combination type directional loudspeaker modules.Electrical appliance connecting wire 4 is multiple for connecting
Speaker module, its objective is multiple directional loudspeaker modules are together in series or parallel, and these connections can be physical connection,
Can be electrically connected.Mounting groove 5 is used for placing and fixing multiple combination type directional loudspeaker modules, sliceable as needed multiple to raise
Sound device module.
Fig. 4 is that multiple combination type directional loudspeaker modules install fixed one embodiment.Fixing hole 6 is hung for product
Formula is installed, and mounting bracket 7 is used for multiple combination type directional loudspeaker modules that are connected.
Claims (5)
1. a kind of adjustable carrier wave of combination type orients PA-system, and device includes：
Signal Pretreatment, modulation treatment and drive circuit module, for be input into audio signal carry out corresponding pretreatment,
Modulation and power amplification；Carrier frequency adjustment module, for adjusting the frequency range of carrier wave, makes different carrier waves have different spies
Property；Combination type directional loudspeaker module, is connected with the output stage of drive circuit, and by one or more directional loudspeaker module structures
Into the high frequency directional sound signal of input is converted into human ear sub-audible sound by Jing air nonlinearities reciprocal action.
2. the adjustable carrier wave of combination type orients PA-system according to claim 1, it is characterised in that carrier frequency can pass through
Adjustment unit is carried out, and this makes system signal modulation module have controlling attribute.
3. the adjustable carrier wave of combination type orients PA-system according to claim 1, it is characterised in that carrier frequency is by adjusting
Unit may be selected the frequencies such as corresponding 25KHZ, 40KHZ, 80KHZ, 105KHZ.
4. the adjustable carrier wave of combination type orients PA-system according to claim 1, it is characterised in that the directional loudspeaker mould
Group is the array being made up of several little directional transducer parts.
5. the adjustable carrier wave of combination type orients PA-system according to claim 1, it is characterised in that the combination type orientation is raised
Sound device is to be fastened on one by one or more directional loudspeaker modules by modes such as mounting groove, clamping or back bracket
Rise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091551.4U CN206042333U (en) | 2016-09-29 | 2016-09-29 | Modular directional PA -system of adjustable carrier wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091551.4U CN206042333U (en) | 2016-09-29 | 2016-09-29 | Modular directional PA -system of adjustable carrier wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206042333U true CN206042333U (en) | 2017-03-22 |
Family
ID=58297166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621091551.4U Expired - Fee Related CN206042333U (en) | 2016-09-29 | 2016-09-29 | Modular directional PA -system of adjustable carrier wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206042333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107155152A (en) * | 2017-07-17 | 2017-09-12 | 王金锁 | One kind orientation plays sound equipment |
| CN107420848A (en) * | 2017-08-28 | 2017-12-01 | 深圳传音通讯有限公司 | The method that music lighting lamp and music lighting lamp orientation play music |
-
2016
- 2016-09-29 CN CN201621091551.4U patent/CN206042333U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107155152A (en) * | 2017-07-17 | 2017-09-12 | 王金锁 | One kind orientation plays sound equipment |
| CN107420848A (en) * | 2017-08-28 | 2017-12-01 | 深圳传音通讯有限公司 | The method that music lighting lamp and music lighting lamp orientation play music |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20180929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |