A kind of total-reflection type multi-channel loudspeaker deviceTechnical field
The utility model relates to a kind of loud speaker, and more particularly, it relates to a kind of total-reflection type multi-channel loudspeaker device.
Background technology
In people's live and work, amusement, its main task or final goal are with sound (sound field) reduction to loud speaker, allow the audience experience the sound field sense of reality at " getting back to " or " coming to personally " " scene " in extensive popularization and application in last century.But tradition is common, acoustic phase is changed higher to better and efficient, with awl basin shape, ball face shape or planar shaped loudspeaker unit are the speaker system of master driver, be typically designed to the direct audition object in the narrower listening area of loudspeaker unit sounding vibrating diaphragm, such design since directly arrive audition to the acoustic wave energy of elephant ear than from reflection, the refraction mode will exceed much from the acoustic wave energy of other direction arrival audition to elephant ear, so on sense of hearing, easily cause acoustic image thin, sharp keen and ear-piercing, situation when the illusion of sound field level shortcoming, this and sound collection (recording) is usually far apart.Need very high also quite complicated and will improve its cost and technology.Problem also has, when adopting a plurality of loudspeaker while sounding with the increase acoustic pressure, when improving tonequality, because of the original volume of these loudspeaker need be distributed in before the loudspeaker box on the baffle in large area, so just will cause the phase place intervention when sounding between them, promptly produce so-called phase distortion, cause some band energy stack or decay, this is just against the broadcast original intention.Therefore there is the designer to improve above-mentioned traditional design, can avoids or reduce serial problem or its degree that above-mentioned designing institute produces with hope.Solution comprise with the loudspeaker unit vibrating diaphragm by be substantially level towards transferring to down or up design, then it is aimed at a taper reflection that newly adds, refraction constructing apparatus, the mode that reflects, reflects by (repeatedly) makes sound wave compare the ear that is delivered to the audition object equably with a plurality of angles (direction) successively, indirectly.Like this, though sense of hearing make moderate progress since ignored loud speaker to its ambient air and ceiling, the producible influence in floor and in addition fully, reasonable use, effect is limited.Especially when the audio frequency apparatus of resetting as the cooperation image, be confined under the limited area condition of average family, sense naturally, broad degree that sound field is built require to be difficult to satisfy.
The utility model content
The technical problems to be solved in the utility model is the above-mentioned difference at prior art, provides that a kind of audition is non-directional, sound is penetrating more naturally, and sound field is broader, level more enriches full total-reflection type multi-channel loudspeaker device.
The technical solution of the utility model is such: a kind of total-reflection type multi-channel loudspeaker device, comprise casing, the medium and low frequency loudspeaker that make progress transaudient are installed at the casing top, wherein said medium and low frequency loudspeaker top is provided with the taper reflector that sound wave is spread towards periphery, at the top of taper reflector the transaudient loudspeaker that makes progress is installed.
Further, in above-mentioned a kind of total-reflection type multi-channel loudspeaker device, the top of described loudspeaker is provided with the second taper reflector that sound wave is spread towards periphery, and the second transaudient loudspeaker that makes progress is installed at the top of the second taper reflector.
In above-mentioned a kind of total-reflection type multi-channel loudspeaker device, the lower surface of the described taper reflector and the second taper reflector is an arc.
In above-mentioned a kind of total-reflection type multi-channel loudspeaker device, the upper surface of the described taper reflector and the second taper reflector is an arc.
Further, in above-mentioned a kind of total-reflection type multi-channel loudspeaker device, the described taper reflector and the second taper reflector periphery are distributed with many cramp bars, and the taper reflector is fixedlyed connected with cramp bar with the second taper reflector edge, fixedly connected with casing in the cramp bar lower end.
After the utility model adopts said structure, reflect towards periphery by the sound of taper reflector loudspeaker, can utilize environmental goods such as indoor wall body, smallpox, furniture, ornaments even ground, near air to carry out acoustic reflection especially fully, effectively improve the improvement of sound sense of hearing, as making sound penetrating more naturally, sound field is broader, level more enriches full.The comprehensive reflection of other 360 degree diffusion makes the phase place unanimity of loudspeaker unit more to help audition, makes each indoor position hearing effect consistency better.
Description of drawings
Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but does not constitute any restriction of the present utility model.
Fig. 1 is the structural representation of a kind of specific embodiment of the utility model.
Among the figure: casing 1, medium and low frequency loudspeaker 2, taper reflector 3, loudspeaker 4, the second taper reflector 5, second loudspeaker 6, cramp bar 7.
Embodiment
Consult shown in Figure 1, a kind of total-reflection type multi-channel loudspeaker device of the present utility model, comprise casing 1, at casing 1 top the medium and low frequency loudspeaker 2 that make progress transaudient are installed, above medium and low frequency loudspeaker 2, be provided with the taper reflector 3 that sound wave is spread towards periphery, the transaudient loudspeaker 4 that makes progress be installed at the top of taper reflector 3; Above loudspeaker 4, be provided with the second taper reflector 5 that sound wave is spread towards periphery, the second transaudient loudspeaker 6 that makes progress is installed at the top of the second taper reflector 5; The utility model also is distributed with three cramp bars 7 at taper reflector 3 and the second taper reflector, 5 peripheries, is used for supporting the taper reflector 3 and the second taper reflector 5; Be that taper reflector 3 is fixedlyed connected with cramp bar 7 with the second taper reflector, 5 edges during installation, get final product being fixedlyed connected with casing 1 in cramp bar 7 lower ends.The taper reflector 3 in the present embodiment and the lower surface of the second taper reflector 5 are arc, can make acoustic reflection become level to transmission; The taper reflector 3 in the present embodiment and the upper surface of the second taper reflector 5 are arc, can cooperate the reflection to sound wave of taper reflector 3 and the second taper reflector, 5 lower surfaces.
The total-reflection type loadspeaker structure that the utility model adopts, can utilize environmental goods such as indoor wall body, smallpox, furniture, ornaments even ground, near air to carry out acoustic reflection especially fully, thereby realize improvement to the sound sense of hearing, as making sound penetrating more naturally, sound field is broader, level more enriches full.More because the utility model has adopted the comprehensive reflection diffusion of level 360 degree, make the phase place unanimity of loudspeaker unit; The directive property of this loud speaker voice directions is 360 degree, what is called " best LisPos " can be ignored easily, and make a plurality of hearing effects of indoor formation near consistent location, so just is more suitable for the broadcast requirement of home theater or title audio-visual equipment.Utilize the utility model just can build the acoustics of what is called near cinema " the on-the-spot replay ", and it is little to take up room, and installation easily is set in family.