CN104602158A - Quadruple-wave fused low-pitch speaker box - Google Patents

Quadruple-wave fused low-pitch speaker box Download PDF

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Publication number
CN104602158A
CN104602158A CN201310534062.6A CN201310534062A CN104602158A CN 104602158 A CN104602158 A CN 104602158A CN 201310534062 A CN201310534062 A CN 201310534062A CN 104602158 A CN104602158 A CN 104602158A
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China
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casing
speakers
boxboard
phonocatheter
box
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CN201310534062.6A
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CN104602158B (en
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郑全录
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SHENZHEN NIUSI ACOUSTICS SYSTEM Co Ltd
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SHENZHEN NIUSI ACOUSTICS SYSTEM Co Ltd
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Abstract

The invention relates to sound speaker boxes, particularly to an electro-acoustic transformation quadruple-wave fused low-pitch speaker box. The quadruple-wave fused low-pitch speaker box comprises two box bodies, which are nested from inside to outside and are independent from each other; each box body is provided with a sound guide pipe and a sound outlet, which are communicated with the ambient atmosphere and conduct sound airflows between the ambient atmosphere and the box body; the second box body is arranged inside the first box body, the four box plates of the second box body are provided with four groups of loudspeakers electrically connected with an audio frequency amplifier, the loudspeakers produce sound in the same phase; the loudspeakers on the opposite box plates are symmetrically arranged. According to the quadruple-wave fused low-pitch speaker box, driven by the audio frequency amplifier, the vibrating diaphragms of the four groups of opposite loudspeakers vibrate to produce four groups of opposite acoustic wave airflows; the four groups of opposite acoustic wave airflows are fused through the two box bodies to form unified acoustic waves, the two sound guide pipes and the two sound outlets issue low-frequency acoustic waves, so that the low-frequency acoustic waves can be strengthened substantially, and the size and the weight of the speaker box can be reduced.

Description

A kind of quadruple sound wave merges bass box
Technical field
The present invention relates to sound equipment audio amplifier, the quadruple sound wave that specifically conversion of a kind of electroacoustic is sounded merges bass box.
Background technology
As everyone knows, in Modern sound frequency spectrum, bass is most important part.Make sound equipment reproduced sound well, bass must be reset out well, otherwise be just difficult to playback of realizing ideal.
At present, being all single casing and two casing woofer or subwoofer substantially, playing bass effect preferably to reach, it has to adopt the loudspeaker unit of large-size (as 8 cun ~ 15 cun); The volume of such woofer is large, quality weight, and cost is high simultaneously, and bass effect is bad.
In People's Telecon Publishing House in " speaker system design and fabrication is advanced " published in February, 2013, disclose multi-loudspeaker system audio amplifier (78-92 page), woofer system (93-110 page).In National Defense Industry Press in " the practical loudspeaker techniques handbook " published in June, 2006, disclose closed low frequency audio amplifier (244-247 page), open type low frequency audio amplifier (248-255 page), transmission line low frequency audio amplifier (259-261 page) and band general formula low frequency audio amplifier (247 pages), wherein closed low frequency audio amplifier, open type low frequency audio amplifier and transmission line low frequency audio amplifier are single casing audio amplifier, before the diaphragm of loudspeaker of these audio amplifiers be exposed in an atmosphere, be conducive to sending out middle pitch and high pitch, and bass is not owing to having the enhancing of audio amplifier, then slattern concerning bass.But band general formula low frequency audio amplifier only has an outlet sound mouth, and just single channel bass strengthens, and bass effect is also undesirable.
Summary of the invention
The object of the present invention is to provide a kind of volume little, bass be simple and honest, mellow and full, shock, distortion is little, and the quadruple sound wave that bass effect is good merges bass box.This audio amplifier is made up of one large, little two casings, and each casing is provided with a respective outlet sound mouth, and whole audio amplifier has two outlet sound mouths; This audio amplifier is made up of four groups of woofers, these four groups of woofers are arranged on four boxboards of small box respectively, symmetrical between two, and these four groups of loud speakers are all homophase sounding, four groups that are sent by these four groups of loud speakers by two casings and phonocatheter thereof relative sound waves merge, and send the bass that distortion is lower, simpler and more honest.
The object of the invention is to be achieved through the following technical solutions:
Bass box of the present invention is made up of inside and outside two nested respective independently casings, i.e. the first casing and the second casing, each casing is respectively equipped with outlet sound mouth, be all provided with in the inside of each casing be connected with ambient air by respective outlet sound mouth, the phonocatheter of conducted acoustic waves air-flow between respective casing and ambient air; Described second casing is positioned at the first casing, the upper boxboard of the second casing, lower boxboard, left boxboard and right boxboard are provided with four groups of set of speakers be electrically connected with audio-frequency power amplifier, each set of speakers homophase sounding, set of speakers on relative boxboard is symmetrical arranged, loudspeaker unit often in group is one or more, and the quantity of loudspeaker unit often in group is identical.
Wherein: described four groups of set of speakers are respectively the first set of speakers, the second set of speakers, three loudspeakers group and the 4th set of speakers, and this first set of speakers, the second set of speakers, three loudspeakers group and the 4th set of speakers are arranged on the upper boxboard of described second casing, lower boxboard, left boxboard and right boxboard respectively; Described first set of speakers and the second set of speakers symmetry are installed, and the loudspeaker unit corresponding with the second set of speakers of the loudspeaker unit namely in the first set of speakers is that vibrating diaphragm is installed vibrating diaphragm or magnet is installed magnet type; Three loudspeakers group and the 4th set of speakers symmetry are installed, and the loudspeaker unit in the loudspeaker unit in three loudspeakers group and the 4th set of speakers is that vibrating diaphragm is installed magnet type vibrating diaphragm or magnet; Loudspeaker unit in described first set of speakers, the second set of speakers, three loudspeakers group and the 4th set of speakers is the loud speaker of same model, and quantity is identical; Described first set of speakers, the second set of speakers, three loudspeakers group and the 4th set of speakers are all that audio frequency sounding homophase is arranged, and namely vibrate to the second casing direction during four groups of loudspeaker unit vibrating diaphragm sounding simultaneously, or simultaneously to the first casing direction vibration; Loudspeaker unit in described first set of speakers, the second set of speakers, three loudspeakers group and the 4th set of speakers is all positioned at outside the second casing, or the loudspeaker unit in two groups of symmetrically arranged set of speakers is all arranged in, and the second casing is outer, the loudspeaker unit of another two groups of symmetrically arranged set of speakers is all positioned at the second casing;
Described first casing and the second casing are respectively equipped with the first outlet sound mouth and the second outlet sound mouth, in the first casing, are provided with the first phonocatheter be connected with described first outlet sound mouth, in the second casing, be provided with the second phonocatheter be connected with described second outlet sound mouth; The sectional area of described first outlet sound mouth is more than or equal to the sectional area of the second outlet sound mouth, and the shape of first and second outlet sound mouth is quadrangle or circle, and the sectional area of the first phonocatheter is more than or equal to the sectional area of the second phonocatheter.The length of the first phonocatheter is greater than the length of the second phonocatheter; First and second phonocatheter described center line is along its length parallel to each other in the projection of vertical plane, vertical or tilt, first and second phonocatheter is quadrangle or circle along the cross sectional shape of short transverse, wherein the first phonocatheter is corresponding with the shape of described first outlet sound mouth along the cross sectional shape of short transverse, and the second phonocatheter is corresponding with the shape of described second outlet sound mouth along the cross sectional shape of short transverse; On the front boxboard that described second outlet sound mouth is positioned at the first casing or rearing-box plate, described first outlet sound mouth is positioned on arbitrary boxboard of the first casing except lower boxboard and upper boxboard; The volume of described first casing is greater than the volume of the second casing, and described second casing length is less than or equal to the length of the first casing, namely the front boxboard of the second casing and rearing-box plate have at least one with the front boxboard of the first casing or rearing-box plate coplanar; The width of described second casing is less than the width of the first casing.
Advantage of the present invention and good effect are:
1. casing nested structure sized by audio amplifier of the present invention, two casings have a respective independently outlet sound mouth respectively, and each outlet sound mouth connects corresponding phonocatheter, and namely overall audio amplifier has two outlet sound mouths and two phonocatheters.
2. loudspeaker unit of the present invention is four groups, four groups of loudspeaker unit relative symmetry are installed, and are all homophase sounding, thus produce four groups of relative sound wave air-flows, these four groups of air-flows are fused into one unified sound wave by two casings and corresponding phonocatheter, make low-frequency sound wave obtain very large enhancing.
3. the first tank-volumes of the present invention is greater than the second tank-volumes, and the first tank-volumes is comparatively large, and its resonance frequency is lower, and the volume of the second casing is less, and its resonance frequency is higher; So just in whole low frequency frequency range, form bimodal curve structure, make low frequency well to downward-extension.
4. present invention uses four groups of loud speakers, often organize loud speaker and be made up of 1 ~ 4 identical loudspeaker again, improve sounding sensitivity, reduce the distortion factor, improve audio amplifier power.
5. outlet sound mouth of the present invention has two, and is all connected to corresponding phonocatheter separately, and the first phonocatheter length is greater than the second phonocatheter length.When low-frequency sound wave is by two phonocatheters, bass is enhanced.
6. the present invention takes full advantage of the bass sound wave on two sides before and after the diaphragm of loudspeaker, achieves the object that volume is little, lightweight, bass effect is good.
Accompanying drawing explanation
Fig. 1 is the structural front view of the embodiment of the present invention one;
Fig. 2 is A-A cutaway view of Fig. 1;
Fig. 3 is the structural front view of this practical example two;
Fig. 4 is B-B cutaway view of Fig. 3;
Fig. 5 is the structural front view of the embodiment of the present invention three;
Fig. 6 is C-C cutaway view of Fig. 5;
Fig. 7 be the present invention often group have the connection diagram of the loud speaker of a loud speaker and a kind of connected mode of audio-frequency power amplifier;
Fig. 8 be the present invention often group have the connection diagram of the loud speaker of a loud speaker and the another kind of connected mode of audio-frequency power amplifier;
Fig. 9 be the present invention often group have the loud speaker of a loud speaker and the connection diagram of another connected mode of audio-frequency power amplifier;
Figure 10 be the present invention often group have the loud speaker of a loud speaker and the connection diagram of another connected mode of audio-frequency power amplifier;
Figure 11 be the present invention often group have the connection diagram of the loud speaker of two loud speakers and a kind of connected mode of audio-frequency power amplifier;
Figure 12 be the present invention often group have the connection diagram of the loud speaker of two loud speakers and the another kind of connected mode of audio-frequency power amplifier;
Figure 13 be the present invention often group have the loud speaker of two loud speakers and the connection diagram of another connected mode of audio-frequency power amplifier;
Wherein: 1 is the first casing, 2 is the second casing, and 3 is the first phonocatheter, 4 is the second phonocatheter, and 5 is the first outlet sound mouth, and 6 is the second outlet sound mouth, 7 is the first set of speakers, and 8 is upper boxboard, and 9 is the second set of speakers, 10 is lower boxboard, and 11 is audio-frequency power amplifier, and 12 is front boxboard, 13 is left boxboard, and 14 is right boxboard, and 15 is rearing-box plate, 16 is three loudspeakers group, and 17 is the 4th set of speakers.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment one
As shown in Figure 1 and Figure 2, quadruple sound wave of the present invention merges bass box can use wood materials (as medium-density plate or high-density plate) to make, and also can be shaped with plastic pressure injection makes, and the present embodiment adopts wood materials to make; Audio amplifier comprises inside and outside two nested respective independently casings, i.e. the first casing 1 and the second casing 2, wherein the first casing 1 is provided with the first outlet sound mouth 5, in the inside of the first casing 1, first phonocatheter 3 is installed, one end of this first phonocatheter 3 is connected with this first outlet sound mouth 5, and the other end is free end, is arranged in the first casing 1; Second casing 2 is positioned at the first casing 1, form box structure in the case of the little case of large housing-case, second casing 2 is provided with the second outlet sound mouth 6, in the inside of the second casing 2, second phonocatheter 4 is installed, one end of this second phonocatheter 4 is connected with this second outlet sound mouth 6, and the other end is free end, is arranged in the second casing 2; First phonocatheter 3 is connected with ambient air by the first outlet sound mouth 5, acoustic conductivity air-flow between ambient air and the first casing 1, and the second phonocatheter 4 is connected with ambient air by the second outlet sound mouth 6, acoustic conductivity air-flow between ambient air and the second casing 2.
The volume (or volume) of the first casing 1 is greater than the volume (or volume) of the second casing 2, volume V1=1:3 ~ 6 of volume V2: the first casing 1 of the second casing 2 in the present embodiment.The front boxboard of described second casing 2 and the front boxboard 12 of rearing-box plate and the first casing and rearing-box plate 15 coplanar, namely the length of first and second casing 1,2 is equal, and the width of the second casing 2 is less than the width of the first casing 1.On the front boxboard that second outlet sound mouth 6 is positioned at the second casing 2 or rearing-box plate, the present embodiment is arranged on the front boxboard of the second casing 2.Described first outlet sound mouth 5 is positioned on the either side boxboard except the lower boxboard of the first casing 1 and upper boxboard, and first outlet sound mouth 5 of the present embodiment is positioned on front boxboard 12.The sectional area of the first outlet sound mouth 5 is more than or equal to the sectional area (sectional area of first and second outlet sound mouth of the present embodiment is equal) of the second outlet sound mouth 6, and the shape of first and second outlet sound mouth 5,6 is quadrangle or circle.First, two phonocatheters 3, 4 center lines are along its length parallel to each other, first, two phonocatheters 3, 4 sectional areas along its length can be that unequal section amasss, also can be that uiform section amasss, first phonocatheter 3 sectional area is along its length more than or equal to the second phonocatheter 4 sectional area along its length, first, two phonocatheters 3, 4 is quadrangle or circle along the cross sectional shape of short transverse, wherein the first phonocatheter 3 is corresponding with the shape of described first outlet sound mouth 5 along the cross sectional shape of short transverse, second phonocatheter 4 is corresponding with the shape of described second outlet sound mouth 6 along the cross sectional shape of short transverse.
The upper boxboard 8 of the second casing 2 is provided with the first set of speakers 7, the lower boxboard 10 relative with upper boxboard 8 is provided with the second set of speakers 9; The left boxboard 13 of the second casing is provided with three loudspeakers group 16, the right boxboard 14 relative with left boxboard 13 is provided with the 4th set of speakers 17.This first set of speakers 7, second set of speakers 9, three loudspeakers group 16 and the 4th set of speakers 17 are electrically connected with audio-frequency power amplifier 11 respectively; These four set of speakers include 1 ~ 4 four loudspeaker unit composition, are respectively made up of the woofer unit of three ~ eight cun of same model in these four set of speakers, the present embodiment be 5 cun of woofers of four same model; Four loudspeaker units between two symmetrical, vibrating diaphragm are arranged vibrating diaphragm, and four loudspeaker units to lay respectively at the second casing 2 outer and in the first casing 1.These four set of speakers are all homophase sounding, namely four loudspeaker unit vibrating diaphragms are simultaneously to the second casing 2 direction vibration, these four loudspeaker units connection in series-parallel can connect (as shown in Figure 7), first set of speakers 7 is connected with the second set of speakers 9, three loudspeakers group 16 is connected with the 4th set of speakers 17, and each set of speakers after series connection is parallel with one another to be again electrically connected with audio-frequency power amplifier 11; Also can be connected in series (as shown in Figure 8), first, second, third and fourth set of speakers 7,9,16,17 is connected successively, then is electrically connected with audio-frequency power amplifier 11; Can also be connected in parallel (as shown in Figure 9), be electrically connected with audio-frequency power amplifier 11 again after first, second, third and fourth set of speakers 7,9,16,17 parallel connection.
The installation of these four set of speakers also can be installed magnet by magnet, at this moment, reach the object of homophase sounding, and its connection is installed identical with the above-mentioned vibrating diaphragm of the present embodiment to vibrating diaphragm.
The tank material of the present embodiment can change plastics into, with the method manufacture of plastics (as ABS resin) injection-compression molding, specifically press the structure fabrication mould described in the present embodiment, rear injection molding machine of plastic machine-shaping made by mould, then first, second, third and fourth set of speakers 7,9,16,17 is arranged on plastic box, finally with screw, plastic box is tightened together.
Embodiment two
As shown in Figure 3, Figure 4, the difference of the present embodiment and embodiment one is: in first, second, third and fourth set of speakers 7,9,16,17, each set of speakers is made up of two loudspeaker units.At this moment, the connected mode of eight loudspeaker units can as shown in figure 11, two loudspeaker unit series connection in each set of speakers, and each set of speakers after series connection is parallel with one another to be again electrically connected with audio-frequency power amplifier 11; Also can as shown in figure 12, two loudspeaker unit parallel connections in each set of speakers, each set of speakers after parallel connection is parallel with one another to be again electrically connected with audio-frequency power amplifier 11; Or as shown in figure 13, two loudspeaker unit series connection in each set of speakers, each set of speakers after series connection is mutually connected and is electrically connected with audio-frequency power amplifier 11.In a word, as long as these connections reach sounding homophase.
Embodiment three
As shown in Figure 5, Figure 6, this example is with the difference of embodiment one: first and second set of speakers 7,9 symmetry is arranged on the relative upper boxboard 8 of the second casing 2 and lower boxboard 10, first and second set of speakers 7,9 is arranged vibrating diaphragm for vibrating diaphragm, namely first and second set of speakers 7,9 is positioned at outside the second casing 2, and the 3rd, on the left boxboard 13 that four set of speakers 16,17 symmetries are arranged on the second casing 2 and right boxboard 14, for magnet is arranged magnet, namely third and fourth set of speakers is within the second casing 2.At this moment the object of homophase sounding will be reached, its connection can be as shown in Figure 10, namely first and second set of speakers 7,9 series connection, third and fourth set of speakers 16,17 is connected, each set of speakers after series connection is parallel with one another to be again electrically connected with audio-frequency power amplifier 11, but first and second set of speakers 7,9 will set of speakers 16,17 be anti-phase is each other connected with third and fourth.Equally, the setting of four set of speakers of the present embodiment also can be that first and second set of speakers 7,9 is arranged magnet for magnet, and third and fourth set of speakers 16,17 is arranged vibrating diaphragm for vibrating diaphragm; At this moment, first and second set of speakers 7,9 also will set of speakers 16,17 be anti-phase is each other connected with third and fourth, could realize homophase sounding like this.
Operation principle of the present invention is:
The output audio power of audio-frequency power amplifier 11 puts on first, second, third and fourth set of speakers 7,9,16,17 simultaneously, and the vibrating diaphragm of the loudspeaker unit in four groups of set of speakers produces simultaneously and seesaws, and vibrate air, sounds.
When audio-frequency power amplifier 11 exports as "+", the vibrating diaphragm of the loudspeaker unit in the first set of speakers 7 vibrates forward (namely to the second casing 2 direction vibration), the vibrating diaphragm of the loudspeaker unit simultaneously in the second set of speakers 9 also vibrates forward (equally also to the second casing 2 direction vibration), the vibrating diaphragm of the loudspeaker unit of third and fourth set of speakers 16,17 is also to the second casing 2 direction vibration, this creates the terminal four groups of relative sound waves, these four groups of sound waves complete sound wave and merge in the second casing 2 and in the first casing 1, then are transmitted to ambient air through the second phonocatheter 4; Meanwhile, ambient air air-flow is transferred in the first casing 1 through the first phonocatheter 5.
When audio-frequency power amplifier 11 exports as "-", the vibrating diaphragm of the loudspeaker unit in the first set of speakers 7 is to after vibration (namely to the first casing 1 direction vibration), the vibrating diaphragm of the loudspeaker unit simultaneously in the second loud speaker 9 is also to after vibration (equally also to the first casing 1 direction vibration), and the vibrating diaphragm of the loudspeaker unit of third and fourth set of speakers 16,17 is also all to the first casing 1 direction vibration simultaneously.So just create four groups of relative sound waves again, these four groups of sound waves merge in the first casing 1 He in the second casing 2, form unified sound wave air-flow and are transmitted to ambient air through the first phonocatheter 3; Meanwhile, ambient air air-flow is transferred in the second casing 2 through the second phonocatheter 4.Like this by the fusion of the relative information stream of first and second casing 1,2, and through the transmission of first and second phonocatheter 3,4, form more powerful bass sound wave, namely woofer of the present invention has large case little case bass fusion enhancing, make bass distortion less, simpler and more honest, plentiful, dive is darker, and bass is more soft and graceful and not stiff.Meanwhile, audio amplifier volume is little, lightweight, and successfully with undersized woofer, (3 ~ 6.5 ") and little audio amplifier reach the bass effect of large scale woofer (8 " ~ 15 ") and large audio amplifier.
The present invention is after audio-frequency power amplifier 11 drives loud speaker, four groups of diaphragms of loudspeaker produce vibration simultaneously, and homophase sounding, form four groups of relative sound wave air-flows, complete sound wave by first and second casing 1,2 again to merge, send low-frequency sound wave through respective phonocatheter from two outlet sound mouths, thus bass sound wave is significantly strengthened, reach four supper bass multiplication effect.Four set of speakers that the present invention adopts, quadruple sound wave merges, audio amplifier sensitivity is improved, distortion of resetting reduce, the low-frequency sound wave sent before and after the diaphragm of loudspeaker is all played one's part to the full, reach make that woofer is highly sensitive, distortion is little, volume is little, lightweight, the object that bass effect is simple and honest.

Claims (10)

1. a quadruple sound wave merges bass box, it is characterized in that: this audio amplifier is made up of inside and outside two nested respective independently casings, i.e. the first casing (1) and the second casing (2), each casing is respectively equipped with outlet sound mouth, be all provided with in the inside of each casing be connected with ambient air by respective outlet sound mouth, the phonocatheter of conducted acoustic waves air-flow between respective casing and ambient air; Described second casing (2) is positioned at the first casing (1), the upper boxboard (8) of the second casing (2), lower boxboard (10), left boxboard (13) and right boxboard (14) are provided with four groups of set of speakers be electrically connected with audio-frequency power amplifier (11), each set of speakers homophase sounding, set of speakers on relative boxboard is symmetrical arranged, loudspeaker unit often in group is one or more, and the quantity of loudspeaker unit often in group is identical.
2. merge bass box by quadruple sound wave according to claim 1, it is characterized in that: described four groups of set of speakers are respectively the first set of speakers (7), the second set of speakers (9), three loudspeakers group (16) and the 4th set of speakers (17), this first set of speakers (7), the second set of speakers (9), three loudspeakers group (16) and the 4th set of speakers (17) are arranged on the upper boxboard (8) of described second casing (2), lower boxboard (10), left boxboard (13) and right boxboard (14) respectively.
3. merge bass box by quadruple sound wave according to claim 2, it is characterized in that: described first set of speakers (7) and the second set of speakers (9) symmetry is installed, the loudspeaker unit corresponding with the second set of speakers (9) of the loudspeaker unit namely in the first set of speakers (7) is that vibrating diaphragm is installed vibrating diaphragm or magnet is installed magnet type; Three loudspeakers group (16) is installed with the 4th set of speakers (17) symmetry, and the loudspeaker unit in the loudspeaker unit in three loudspeakers group (16) and the 4th set of speakers (17) is that vibrating diaphragm is installed magnet type vibrating diaphragm or magnet.
4. merge bass box by the quadruple sound wave described in Claims 2 or 3, it is characterized in that: the loudspeaker unit in described first set of speakers (7), the second set of speakers (9), three loudspeakers group (16) and the 4th set of speakers (17) is the loud speaker of same model, and quantity is identical; Described first set of speakers (7), the second set of speakers (9), three loudspeakers group (16) and the 4th set of speakers (17) are all that audio frequency sounding homophase is arranged, namely vibrate to the second casing (2) direction during four groups of loudspeaker unit vibrating diaphragm sounding simultaneously, or vibrate to the first casing (1) direction simultaneously.
5. merge bass box by the quadruple sound wave described in Claims 2 or 3, it is characterized in that: the loudspeaker unit in described first set of speakers (7), the second set of speakers (9), three loudspeakers group (16) and the 4th set of speakers (17) is all positioned at the second casing (2) outward, or the loudspeaker unit in two groups of symmetrically arranged set of speakers be all arranged in the second casing (2) outward, the loudspeaker unit of another two groups of symmetrically arranged set of speakers is all positioned at the second casing (2).
6. merge bass box by quadruple sound wave according to claim 1, it is characterized in that: described first casing (1) and the second casing (2) are respectively equipped with the first outlet sound mouth (5) and the second outlet sound mouth (6), in the first casing (1), be provided with the first phonocatheter (3) be connected with described first outlet sound mouth (5), in the second casing (2), be provided with the second phonocatheter (4) be connected with described second outlet sound mouth (6).
7. merge bass box by quadruple sound wave according to claim 6, it is characterized in that: the sectional area of described first outlet sound mouth (5) is more than or equal to the sectional area of the second outlet sound mouth (6), the shape of first and second outlet sound mouth (5,6) is quadrangle or circle, and the sectional area of the first phonocatheter (3) is more than or equal to the sectional area of the second phonocatheter (4).The length of the first phonocatheter (3) is greater than the length of the second phonocatheter (4).
8. merge bass box by the quadruple sound wave described in claim 6 or 7, it is characterized in that: first and second phonocatheter described (3,4) center line is along its length parallel to each other in the projection of vertical plane, vertical or tilt, first and second phonocatheter (3,4) is quadrangle or circle along the cross sectional shape of short transverse, wherein the first phonocatheter (3) is corresponding with the shape of described first outlet sound mouth (5) along the cross sectional shape of short transverse, and the second phonocatheter (4) is corresponding with the shape of described second outlet sound mouth (6) along the cross sectional shape of short transverse.
9. merge bass box by the quadruple sound wave described in claim 6 or 7, it is characterized in that: on the front boxboard (12) that described second outlet sound mouth (6) is positioned at the first casing (1) or rearing-box plate (15), described first outlet sound mouth (5) is positioned on arbitrary boxboard of the first casing (1) except lower boxboard and upper boxboard.
10. merge bass box by the quadruple sound wave described in claim 6 or 7, it is characterized in that: the volume of described first casing (1) is greater than the volume of the second casing (2), described second casing (2) length is less than or equal to the length of the first casing (1), namely the front boxboard of the second casing (2) and rearing-box plate have at least one with the front boxboard (12) of the first casing (1) or rearing-box plate (15) coplanar; The width of described second casing (2) is less than the width of the first casing (1).
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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN106470377A (en) * 2015-08-18 2017-03-01 三星电子株式会社 Speaker
CN109151678A (en) * 2017-06-28 2019-01-04 北京太和开元科技有限公司 Sounding device
CN109714688A (en) * 2019-02-19 2019-05-03 苏州上声电子股份有限公司 A kind of speaker system
CN110300201A (en) * 2019-07-29 2019-10-01 Oppo广东移动通信有限公司 Terminal device
CN112218208A (en) * 2020-10-26 2021-01-12 河北绿影电子科技有限公司 Novel sounder

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