CN206196040U

CN206196040U - Asymmetry expandes horn loudspeaker system

Info

Publication number: CN206196040U
Application number: CN201620733650.1U
Authority: CN
Inventors: 王理想; 陈明; 赖福生; 王文星; 王明用
Original assignee: Guangzhou Audio Electronic Technology Co Ltd
Current assignee: Guangzhou Voice Electronic Technology Co., Ltd.
Priority date: 2016-07-12
Filing date: 2016-07-12
Publication date: 2017-05-24
Anticipated expiration: 2026-07-12

Abstract

The utility model provides an asymmetry expandes horn loudspeaker system. Include: sound source receiving arrangement, asymmetry expand horn, horn aditus laryngis, horn opening, the horn aditus laryngis is located asymmetry expandes the little open end of horn, horn open position in asymmetry expandes the end of opening one's mouth widely of horn, sound source receiving arrangement is located the horn aditus laryngis outside, the utility model discloses an asymmetry expandes the horn mode, need not to adjust horn radiation angle or the complicated acoustic lens of installation, utilizes the asymmetry of the expansion of horn, changes the sound pressure finger tropism of horn, makes the skew geometrical axis heart yearn of radiation angle, realizes the non -blind area transmission of sound.

Description

A kind of asymmetry launches horn speaker system

Technical field

The utility model is related to broadcasting equipment technical field, more particularly to a kind of asymmetry to launch horn speaker system System.

Background technology

In the prior art, horn speaker is usually level, vertical symmetry, horn be an endwall surface hardness it is uniform by The sound pipe for gradually launching, its principle is to produce the shaft core of wave surface to be radiated with horn in the horizontal development of horn, vertical symmetry, horn The cross section geometry shaft core in direction overlaps, the arbitrfary point and symmetrical in shaft core line with the point in horn radiation direction wave surface Point, to shaft core line on distance is equal, specific acoustic resistance is equal, therefore acoustical phase is all same phase, and sound wave is overlapped mutually；Work as test During the positional deviation shaft core line of point, in wave surface arbitrfary point and with the point in the symmetrical point of shaft core line, reach off-axis point away from From being unequal, phase is out of phase, and when phase difference is two points of wavelength, sound wave is anti-phase to be caused to cancel out each other, institute So that with equidistant, the sound pressure level maximum on radiation direction axis, when deviateing radiation direction axis, sound pressure level gradually decays, because This, there are the following problems for prior art：One is that geometry shaft core line of the acoustic radiating acoustic pressure of prior art in horn opening is pointed to Maximum, decays, or even there is acoustic pressure blind area step by step in other direction acoustic pressures of the geometry shaft core line of horn opening；Two is in order to more Acoustic pressure blind area is mended, the multiple horn speakers of installation are generally required, cost is increased；Three is to adjust radiation direction, it is necessary to adjust The setting angle of whole horn speaker installs acoustic lens, increased the complexity and cost of speaker system.

Utility model content

To solve the above problems, horn speaker system is launched the utility model discloses a kind of asymmetry, including：Sound Source reception device, asymmetry launch horn, horn aditus laryngis, horn opening, and the horn aditus laryngis is located at the asymmetry exhibition The small openend of horn is opened, the horn opening is located at the big opening end that the asymmetry launches horn, and the sound source is received Device is located at horn aditus laryngis outside.

Further, it is half horn shape that the asymmetry launches horn, and its bottom is planar structure, and side is half Pyramidal structure, the horn opening is semi-circular shape.

Further, the horn aditus laryngis is fixed on the small openend that the asymmetry launches horn using paste, The junction that the horn aditus laryngis launches horn with asymmetry sets rubber sheet gasket, and the horn gullet section is in semicircle Between band circular hole.

Further, the horn opening is quality of rubber materials, is located on the big opening end that the asymmetry launches horn Outer rim.

Compared with prior art, the utility model includes advantages below：

The utility model launches horn mode using asymmetry, and the sound without adjusting horn radiation angle or install complexity is saturating Mirror, using the asymmetry of the expansion of horn, changes the acoustic pressure directive property of horn, radiation angle is deviateed geometry shaft core line, realizes The non-blind area transmission of sound.

Brief description of the drawings

In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing used in description of the prior art does one and simply introduces.

Fig. 1 is the structural representation of one embodiment that asymmetry of the present utility model launches horn speaker system；

Fig. 2 is that the transfer voice of another embodiment that asymmetry of the present utility model launches horn speaker system is former Reason figure.

In figure：1 sound source reception device, 2 asymmetry launch horn, 3 horn aditus laryngis, 4 horn openings.

Specific embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment The embodiment stated only a part of embodiment of the utility model, rather than whole embodiments.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

Horn speaker system is launched to a kind of asymmetry that the utility model is provided with reference to the accompanying drawings and examples Illustrated in greater detail with method.

For the problem for overcoming prior art to exist, the utility model embodiment provides following solution：

Fig. 1 is the structural representation of one embodiment that asymmetry of the present utility model launches horn speaker system, As shown in figure 1, the utility model discloses a kind of asymmetry launches horn speaker system, including：It is sound source reception device 1, non- Symmetry launches horn 2, horn aditus laryngis 3, horn opening 4, and the horn aditus laryngis 3 is located at the asymmetry and launches horn 2 Small openend, the horn opening 4 is located at the big opening end that the asymmetry launches horn 2, the sound source reception device 1 In the outside of the horn aditus laryngis 3.

It is half horn shape that the asymmetry launches horn 2, and its bottom is planar structure, and side is half-cone knot Structure, the horn opening is semi-circular shape.

The horn aditus laryngis 3 is fixed on the small openend that the asymmetry launches horn 2, the horn using paste The junction that aditus laryngis 3 launches horn 2 with asymmetry sets rubber sheet gasket, and the section of horn aditus laryngis 3 is semicircle Intermediate Gray Circular hole.

The horn opening 4 is quality of rubber materials, is located on the big opening end outer rim that the asymmetry launches horn 2.

Fig. 2 is that the transfer voice of another embodiment that asymmetry of the present utility model launches horn speaker system is former Reason figure, as shown in Fig. 2 when sound source reception device 1 receives audio signal after, changes into audio signal sound wave and passes through number Cylinder aditus laryngis 3 transmit to asymmetry launch horn 2, sound wave asymmetry launch horn 2 in after overcoupling, sound wave from number Cylinder opening 4 exports.

After sonic transmissions to horn aditus laryngis 3, because asymmetry launches on the cross section of horn 2 each point to horn The distance of geometry shaft core line is unequal, namely the phase that reaches on the cross section of horn opening 4 of the sound wave of horn aditus laryngis 3 is not phase Deng, as axis of reference, then sound wave is fast along the propagation that asymmetry launches the side of horn 2 for the geometry shaft core line with horn opening 4, Propagation path is more long in horn, and acoustic resistance is larger, delayed phase；And sound wave is slow along the propagation that asymmetry launches the bottom surface of horn 2, The propagation time is short in horn, and acoustic resistance is smaller, and phase is advanced, and geometric reference axle, realization number are deviateed from the radiation direction of horn is made The sensing deflection of cylinder, it is arc in horn that it radiates and points to axis, and the radiation direction in horn opening is radiation sensing axis Tangent line at horn opening.

Launch horn speaker system to a kind of asymmetry provided by the utility model above to be described in detail, Specific case used herein is set forth to principle of the present utility model and implementation method, and the explanation of above example is only It is to be used to help understand method of the present utility model and its core concept；Simultaneously for those of ordinary skill in the art, foundation Thought of the present utility model, will change in specific embodiments and applications, in sum, in this specification Appearance should not be construed as to limitation of the present utility model.

Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this is not limited to Utility model, although being described in detail to the utility model with reference to the foregoing embodiments, for those skilled in the art For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic Equivalent is carried out, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements made etc., Should be included within protection domain of the present utility model.

Claims

1. a kind of asymmetry launches horn speaker system, it is characterised in that including：Sound source reception device, asymmetry exhibition Horn, horn aditus laryngis, horn opening are opened, the horn aditus laryngis is located at the small openend that the asymmetry launches horn, described Horn opening is located at the big opening end that the asymmetry launches horn, and the sound source reception device is located at outside the horn aditus laryngis Side.

2. asymmetry according to claim 1 launches horn speaker system, it is characterised in that the asymmetry exhibition Horn is opened for half horn shape, its bottom is planar structure, side is half-cone structure, and the horn opening is semicircular ring Shape.

3. asymmetry according to claim 1 launches horn speaker system, it is characterised in that the horn aditus laryngis makes The small openend that the asymmetry launches horn is fixed on paste, the horn aditus laryngis launches horn with asymmetry Junction sets rubber sheet gasket, and the horn gullet section is semicircle Intermediate Gray circular hole.

4. asymmetry according to claim 1 launches horn speaker system, it is characterised in that the horn opening is Quality of rubber materials, is located on the big opening end outer rim that the asymmetry launches horn.