CN2319983Y - 360 degree omnidirectional unit independent reflective loudspeaker box - Google Patents

Abstract

The utility model relates to a unit independence type loudspeaker box which can send sounds with the angle of 360 DEG in all directions. The positions of the positive direction, the reverse direction or the positive direction and the reverse direction of an existing loudspeaker are added with a sound collecting decide and a sound separating device. The utility model is composed of a sound collecting bucket, a sound separating cone and a horn sounding partition plate with 360 DEG in a shape of a circular ring. After sound waves sent from the positive direction and the reverse direction of the loudspeaker pass through the sound collecting bucket, the sounds can be sent toward the direction of 360 DEG under the influence of the bevel of the sound separating cone and the sloped edge of the outer side of the sound collecting bucket.

Description

360 ° of comprehensive unit stand alone type reflection audio amplifiers

The utility model relates to a kind of audio amplifier, particularly 360 ° of comprehensive unit stand alone type reflection audio amplifiers.

There are many shortcomings in present phase inverted cabinet: 1. unidirectional promptly can only pronounce to 120 ° of directions, and can not when making 360 ° of directions pronunciations as need, need a plurality of loud speakers or special loud speaker just can realize to 360 ° of directions pronunciations.2. equilateral triangle must be pressed in pendulum position, could produce a convergent point (promptly being commonly called as stereo) and forms stereosonic illusion.3. strict to environment (except the outer sound interference) and the connection power amplifier put, could produce good space sound field.4. high, medium and low likeness of the deceased easily produces cross-talk (or audio mixing) and causes distortion.5. improve tonequality and make high, medium and low cent bright, true, need utilize the cost of high-tech technology and several times.6. the different required frequency dividers with the speaker unit position of different outward appearances also need different.7. under the horizontal situation of identical manufacture craft, the volume of case and complex structural designs, different composite design tonequality differ greatly.8. under identical loud speaker and frequency divider condition, the outward appearance of case and volume design are very big to the influence of tonequality.

The purpose of this utility model is exactly in order to overcome above shortcoming, and provides a kind of high tone quality, low cost, outward appearance diversification and 360 ° of constant comprehensive unit stand alone type audio amplifiers of tonequality to people.

The purpose of this utility model can reach by following measure: it includes loud speaker, the device that has collection sound bucket and partial awl in the setting of the anti-phase or positive and negative two-phase sound mouth of the positive of loud speaker, the heavy caliber opening of described collection sound bucket links to each other with the loud speaker sound mouth, small-bore opening is relative with the tap web of described partial awl, and this device also is divided into the tone channel that of some identical equal portions with dividing plate at the collection sound bucket and the periphery of partial awl.Special character of the present utility model is the positive or an anti-phase collection sound bucket and a collection of the partial awl composition sound and branch tone chamber of utilizing of loud speaker, utilize collection sound bucket and partial awl outside hypotenuse to form one the 360 ° round horns of ring, utilize upper and lower cover plate to connect again, go out tone channel thereby form 360 ° of circular horns of ring with this horn.

The utility model can be described further in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a front view of the present utility model.

Fig. 2 is a upward view of the present utility model.

Fig. 3 is a vertical view of the present utility model.

Fig. 4 is preceding, a left and right view of the present utility model.

Fig. 5 is a rearview of the present utility model.

Fig. 6 is that 360 ° of circular horns of ring of the present utility model and 360 ° of annular horns go out tone channel profile (partial tapered segment).

Fig. 7 is that 360 ° of circular horns of ring of the present utility model and 360 ° of annular horns go out tone channel profile (collection sound circle bucket part).

Fig. 8 is anechoic chamber of the present utility model and anti-phase cylinder profile.

As shown in Figure 1: the 1st, loudspeaker unit, the 2nd, collection sound circle bucket (upper and lower two altogether), its axis of great circle is the same with the diffuser diameter, and axis of small circle is 30% of an axis of great circle, highly is 25% of axis of great circle; The 3rd, collection sound and branch tone chamber.The 4th, partial circular cone (solid, upper and lower two altogether), its end circular diameter is the same with the diffuser diameter, highly is 25% of end circular diameter.The 5th, top cover plate.6 is that 360 ° of annular horns go out tone channel (upper and lower two altogether).The 7th, the loud speaker positive goes out the sound round mouth.8 is that 360 ° of circular horns of ring go out tone channel and hold top lath (referring to Fig. 6, shown in Fig. 7 8), the 9th, cover plate above the anechoic chamber, going out sound round mouth 7 with the loud speaker positive is an integral body (shown in 9 in Fig. 7), the 10th, anechoic chamber's outer panel, the 11st, anechoic chamber's reinforcement, the 12nd, sound-absorbing and diffusing sound material, the 13rd, cover plate below the anechoic chamber, anti-phase to go out sound round mouth 14 are an integral body (shown in 13 in Fig. 7) with loud speaker, (annotate: from 9,10,11,12,13,21 end, be combined into the anechoic chamber), the 14th, loud speaker is anti-phase to go out the sound round mouth, diameter is the same with loud speaker 1 cone diameter, the 15th, audio amplifier holds son, the 16th, following cover plate, 17 is that 360 ° of circular horns of ring go out the tone channel dividing plate, 18 is that 360 ° of circular horns of ring are (altogether, following two), the 19th, collection sound circle struggles against out the sound round mouth (altogether, following two) (shown in 19 in Fig. 7), the 20th, anti-phase defeated sound cylinder spreading grooves sound-absorbing material, the 21st, anti-phase defeated sound cylinder outside plate, the 22nd, the letter of anti-phase defeated sound circle, the same by diameter of a circle with loud speaker 1 overall diameter size, 70% the hollow cylinder that highly is loud speaker 1 cone diameter is formed (shown in 22 in Fig. 8).

In Fig. 8, the 24th, input terminal, the 25th, frequency divider, the 26th, the tie of frequency divider 25 and loud speaker 1, the 27th, anti-phase spreading grooves bar, by length with anti-phase defeated sound cylinder 22 length identical uneven bar shaped form.

In Fig. 1, high, medium and low loudspeaker unit is arranged respectively, the casing of respectively doing for oneself, 31 is high sound box with sound, and 32 is middle sound box with sound, and 33 is woofer, its structural principle is identical, so a unit only has been described just, high, medium and low audio amplifier wherein can be overlapping removable, also can be overlapping solid forever.

In Fig. 1, the overlap mode of high, medium and low sound box with sound has: a. ladder overlapping (as Fig. 1), and the b. turriform is overlapping, c. 3 kinds of forms of the overlapping grade of vertical parallel, in addition, can also the split stand alone type use, coaxial loudspeaker or full-range speaker only need to use separately in this way.

As 1 among Fig. 1,2,3,4,7,14,18,19,20,21,22 etc. is internal structure, constant, it is the pronunciation critical piece, remaining the 5,6,8,9,10,11,12,13,16, the 17th, external structure, variable, it or not the critical piece of pronunciation, so, the outward appearance of stand alone type reflection audio amplifiers in 360 ° of comprehensive unit of the present utility model has: the outward appearance of multiple builds such as square (as Fig. 1), cuboid, cylinder, oval cylinder, triangle hexahedron, turriform body, and do not influence the tonequality of internal structure.

Hold son 15 as audio amplifier among Fig. 2, have four, be fixed on the following cover plate 16.

In Fig. 3, above cover plate 5 top middle or small square is arranged, sound box with sound and high sound box with sound upper cover plate in the representative respectively respectively.

In Fig. 6, the end of partial circular cone 4 circle and loud speaker be just anti-phase, and to go out sound round mouth 7,14 big or small identical, 360 ° of circular horns of ring go out tone channel dividing plate 17, and 360 ° of circular horns 3 of ring are divided into identical some equal portions (can be 4 parts, 6 parts, 8 parts etc., this figure is 4 equal portions), and make 360 ° of circular horns of ring have the omnibearing sound function that send.

In Fig. 7, the axis of great circle of collection sound circle bucket 2 and loud speaker be just anti-phase, and to go out sound round mouth 7,14 identical, and the 19th, collect the sound circle sound round mouth that struggles against out, shape is a hollow circle, the size of diameter is 30% of an axis of great circle.

In Fig. 8, input stroma 23, input terminal 24, frequency divider 25, frequency divider and loud speaker tie 26, the 27th, anti-phase spreading grooves, the size of groove can be that promptly 1: 1: 1 etc. also can be uneven uniformly, promptly 2: 1: 3 etc., that is to say: length is identical, and the degree of depth can be identical with width, also can be inequality.

The audio signal electricity of power amplifier output frequently, through tie, input terminal 24, frequency divider 25, loud speaker tie 23, arrived behind the loud speaker 1, its solenoid is under the effect of magnetic force, utilize the vibrations of shake film, the signal electricity is converted into sound wave frequently, be that loud speaker 1 is sounded, because during the loud speaker pronunciation is to produce the obverse and reverse sound wave simultaneously, be called positive and anti-phase sound wave, this positive and anti-phase sound wave must be kept apart fully, otherwise can cause acoustic short circuit, and especially low frequency wave is more obvious, so collection sound circle bucket is divided into positive (top) and anti-phase (following) collection sound circle bucket 2, now describe earlier sound wave from loud speaker 1 enter collection sound circle bucket 2 (above), and not to around scatter, rushed at partial circular cone 4 (top) by the concentrated area toward collecting the sound circle sound round mouth 19 (top) that struggles against out, because the partial circular cone 4 most advanced and sophisticated collection sound circle bucket sound mouths 19 of aiming at, therefore, sound wave is on the effect and the partial circular cone inclined-plane of acoustic pressure, under the influence on the outer inclined-plane of collection sound circle bucket, scatter to 360 ° of directions.Because it is to be divided into equal some parts round 360 ° of circular horns 18 of ring that 360 ° of circular horns of ring go out tone channel dividing plate 17, every part of tone channel just equals a unidirectional horn outlet, so each tone channel all has directivity.So, 360 ° of circular horns of ring go out tone channel 6 be directive sound wave from 360 ° of circular horns 18 of ring send outside the audio amplifier 360 ° comprehensive around, thereby realized directive 360 ° of comprehensive raising one's voice.Anti-phase part for loud speaker 1, when loud speaker 1 anti-phase sound wave sends, arrive anti-phase defeated sound cylinder 22 earlier, because 22 effects of anti-phase defeated sound cylinder, the positive sound wave of loud speaker 1 and anti-phase sound wave are kept apart fully, so anti-phase sound wave can not disturb the positive sound wave.In anti-phase defeated sound cylinder 22 inboards some anti-phase spreading grooves 27 is arranged, anti-phase defeated sound cylinder spreading grooves sound-absorbing material 20 is arranged in the groove, the outside has by 9,10,11,12,13,21 anechoic chambers that form, the harmonic wave that after sound wave sends, is produced, clutter, refracted wave, reflected wave etc., some is sponged by the anechoic chamber, when another partly passes through anti-phase defeated sound cylinder 22, or absorbed by quieter material, or be subjected to the diffusion of anti-phase spreading grooves 27, thereby guaranteed the true and purity of normal sound wave by the back tonequality that is kept, on the other hand, the anechoic chamber is last, following 360 ° of circular horns of ring go out in the middle of tone channel 6 and anti-phase defeated sound cylinder 22 threes, this more the favorable for absorption sound wave by the time clutter that produced, harmonic wave, improve the true and purity of tonequality, when anti-phase sound wave enters collection sound circle bucket 2, process is with above-mentioned identical, so just, anti-phase sound wave sends in different spaces simultaneously, and can not cause the acoustic short circuit phenomenon, this has improved the phonation efficiency of loud speaker 1 greatly, whole at this point voiced process finishes, and is high like this, in, woofer can adopt simultaneously and produce sounding simultaneously.

Other embodiment: collection sound bucket of the present utility model and partial awl except that adopt round, also can correspondingly adopt round, ellipse, square and multiangular etc.

The utility model is compared with existing technology, and has following advantage:

1, realizes 360 ° of comprehensive sounding, overcome the shortcoming of prior art one direction sounding.

2, realize the outward appearance diversification and guaranteed that tonequality is constant, overcome the different outward appearances of prior art Cause tonequality that shortcoming than big difference is arranged.

3, the pendulum position is simpler, and can produce a plurality of convergent points (stereo position), and having overcome prior art must only produce the shortcoming of a convergent point (stereo) by equilateral triangle pendulum position.

4, high, medium and low sound cross-talk not, clearly demarcated, true, overcome the easy cross-talk of prior art, the shortcoming that audio mixing is unclear.

5, realize the high tone quality low cost.

6, device such as loud speaker and frequency divider and outward appearance are irrelevant, have overcome different its loud speakers of outward appearance of prior art and the also differentiated shortcoming of frequency divider.

7, structure is easily unitized, overcomes prior art and is difficult to unified shortcoming.

8, on outward appearance and tonequality, satisfy people's psychological requirement easily, overcome the more inappeasable shortcoming of prior art.

Claims (2)

1, a kind of 360 ° of comprehensive unit stand alone type reflection audio amplifiers, include loud speaker, it is characterized in that: sound mouth setting anti-phase at the positive of loud speaker or positive and negative two-phase has the device of collection sound bucket and partial awl, the heavy caliber opening of described collection sound bucket links to each other with the loud speaker sound mouth, small-bore opening is relative with the tap web of described partial awl, and this device also is divided into the tone channel that of some identical equal portions at the collection sound bucket and the periphery of partial awl.

2,360 ° of comprehensive unit stand alone type reflection audio amplifiers according to claim 1, it is characterized in that: described collection sound bucket can be circle bucket, oval bucket, Fang Dou, polygonal bucket, described partial awl can be corresponding circular cone, elliptic cone, side's awl and polygonal awl.

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