CN203590421U - Dual opposite sound wave fusion sound box - Google Patents
Dual opposite sound wave fusion sound box Download PDFInfo
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- CN203590421U CN203590421U CN201320529992.8U CN201320529992U CN203590421U CN 203590421 U CN203590421 U CN 203590421U CN 201320529992 U CN201320529992 U CN 201320529992U CN 203590421 U CN203590421 U CN 203590421U
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Abstract
The utility model relates to a sound box, and specifically refers to a dual opposite sound wave fusion sound box employing electroacoustic transition to generate sound; the sound box comprises two independent box bodies nested in an internal and external manner; each sound box is provided with a sound guide pipe and two sound outlets both connected with environment air and used for conducting sound air flow between the environment air and each sound box body; the second box body is positioned in the first sound box and provided with two loudspeaker sets electrically connected with an audio frequency power amplifier; the two loudspeaker sets are symmetrically arranged in opposite, i.e., vibration films are arranged face to face, or magnets are arranged face to face. Vibration films of two opposite loudspeaker sets are driven by the audio frequency power amplifier so as to generate vibrations, and two opposite sound wave flows are generated and form a uniformed sound wave fused in a whole through the two box bodies; low frequency sound waves are sent out from the two sound guide pipes and two sound outlets, so the low frequency sound waves are greatly reinforced, thereby reducing the size and weight of the sound box.
Description
Technical field
The utility model relates to sound equipment audio amplifier, and the dual relative sound wave that specifically a kind of electroacoustic conversion is sounded merges audio amplifier.
Background technology
As everyone knows, in modern sound equipment frequency spectrum, bass is most important part.Make sound equipment reproduced sound well, bass must be reset out well, otherwise be just difficult to the playback of realizing ideal.
At present, be all single casing and two casing woofer or subwoofer substantially, in order to reach good broadcasting bass effect, it has to adopt the loudspeaker unit of large-size (as 8 cun～15 cun); Large, the quality weight of the volume of woofer like this, cost is high simultaneously, and bass effect is bad.
In the advanced > > of < < speaker system design and fabrication publishing in February, 2013, multi-loudspeaker system audio amplifier (78-92 page), woofer system (93-110 page) are disclosed in People's Telecon Publishing House.In National Defense Industry Press in the practical loudspeaker techniques handbook of the < < > > publishing in June, 2006, closed low frequency audio amplifier (244-247 page) is disclosed, 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), closed low frequency audio amplifier wherein, 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 atmosphere, be conducive to send out middle pitch and high pitch, and bass is owing to there is no the enhancing of audio amplifier, concerning bass, slatterned.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.
Utility model content
The purpose of this utility model is to provide a kind of volume little, and bass is simple and honest, mellow and full, shock, and distortion is little, and the dual relative sound wave that bass effect is good merges audio amplifier.This audio amplifier is comprised of one large, little two casings, and each casing is provided with outlet sound mouth separately; This audio amplifier is comprised of two groups of woofers, and these two groups of woofers adopt relatively to be installed, and two groups of relative sound waves that these two groups of loud speakers sent by two casings and phonocatheter thereof merge, and send lower, the simpler and more honest bass of distortion.
The purpose of this utility model is achieved through the following technical solutions:
Audio amplifier of the present utility model by inside and outside nested two separately independently casing form, the inside of each casing be all provided with ambient air be connected, at the phonocatheter of conducted acoustic waves air-flow between casing and ambient air separately, wherein the second casing is positioned at the first casing, and two groups of set of speakers that are electrically connected to audio-frequency power amplifier are installed on the second casing; Wherein two groups of set of speakers are arranged on respectively on two boxboards that described the second casing is relative, loudspeaker unit in every group is one or more, and the quantity of the loudspeaker unit in every group is identical, each loudspeaker unit in every group respectively with another group in a loudspeaker unit be symmetrical arranged.
Wherein: two described set of speakers are comprised of the first set of speakers and the second set of speakers, this first set of speakers and the second set of speakers are arranged on respectively on the upper boxboard and lower boxboard of described the second casing, or on left boxboard and right boxboard; Described the first set of speakers is relative with the second set of speakers installs, and the loudspeaker unit in the first set of speakers is that vibrating diaphragm is installed vibrating diaphragm or magnet is installed magnet type with loudspeaker unit corresponding in the second set of speakers; Loudspeaker unit in described the first set of speakers and the second set of speakers is all identical; Loudspeaker unit in described the first set of speakers and the second set of speakers is all installed side by side, each loudspeaker unit in every group is that audio frequency sounding is with being in parallel or being connected in series, when in parallel, the positive pole of each loudspeaker unit in every group is connected, negative pole links together, during series connection, the both positive and negative polarity of each loudspeaker unit is respectively and is connected in series in every group; Described the first set of speakers and the second set of speakers are that audio frequency is with being in parallel or being connected in series, the first set of speakers is connected with positive pole with the positive pole of the second set of speakers, negative pole is connected with negative pole, or the positive pole of one group of set of speakers and the negative pole of another set of speakers are connected;
On described the first casing and the second casing, be respectively equipped with the first outlet sound mouth and the second outlet sound mouth, in the first casing, be provided with the first phonocatheter being connected with described the first outlet sound mouth, in the second casing, be provided with the second phonocatheter being connected with described the second outlet sound mouth; The sectional area of described the first outlet sound mouth is more than or equal to the sectional area of the second outlet sound mouth, first and second outlet sound mouth be shaped as quadrangle or circle, the sectional area of the first phonocatheter is more than or equal to the sectional area of the second phonocatheter, and the length of the first phonocatheter is greater than the length of the second phonocatheter; Described first and second phonocatheter 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 the first outlet sound mouth along the cross sectional shape of short transverse, and the second phonocatheter is corresponding with the shape of described the second outlet sound mouth along the cross sectional shape of short transverse; The volume of described the first casing is greater than the volume of the second casing, and the width of the second casing is identical with the width of the first casing, and the two sides of first and second casing are coplanar; Described the second outlet sound mouth is positioned on the front panel of the first casing, and described the first outlet sound mouth is positioned on the lower boxboard and the either side boxboard upper boxboard of the first casing; The volume of described the first casing is greater than the volume of the second casing, and the width of described the first casing is identical with the length of the second casing, and the front panel of the second casing and rear board are coplanar with the two sides of the first casing respectively; Described the second outlet sound mouth is positioned on the either side of left and right sides of the first casing, and described the first outlet sound mouth is positioned on the lower boxboard and the either side boxboard upper boxboard of the first casing.
Advantage of the present utility model and good effect are:
1. audio amplifier of the present utility model is large small box nested structure, and two casings have respectively separately independently outlet sound mouth, and each outlet sound mouth connects corresponding phonocatheter, and whole audio amplifier has two outlet sound mouths and two phonocatheters.
2. loudspeaker unit of the present utility model is two groups, and two groups of loudspeaker units are installed relatively, thereby produces two groups of relative sound wave air-flows, and these two 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 utility model is greater than the second tank-volumes, and the first tank-volumes is larger, 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. the utility model has been used two groups of loud speakers, and every group of loud speaker is comprised of 1-4 identical loudspeaker again, improved sounding sensitivity, reduced the distortion factor, improved audio amplifier power.
5. outlet sound mouth of the present utility model has two, and is all connecting separately corresponding phonocatheter, and the length of the first phonocatheter is greater than the length of the second phonocatheter, and when low-frequency sound wave passes through two phonocatheters, bass is enhanced.
6. the utility model takes full advantage of the dual sound wave of diaphragm of loudspeaker front and back, has realized the object that volume is little, lightweight, bass effect is good.
Accompanying drawing explanation
Fig. 1 is the structural front view of the utility model embodiment mono-;
Fig. 2 is C-C cutaway view of Fig. 1;
Fig. 3 is the structural front view of the utility model embodiment bis-;
Fig. 4 is A-A cutaway view of Fig. 3;
Fig. 5 is the structural front view of the utility model embodiment tri-;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the structural front view of the utility model embodiment tetra-;
Fig. 8 is B-B cutaway view of Fig. 7;
Fig. 9 is that every group of the utility model has the loud speaker of two loud speakers and the connection diagram of a kind of connected mode of audio-frequency power amplifier;
Figure 10 is that every group of the utility model has the loud speaker of two loud speakers and the connection diagram of the another kind of connected mode of audio-frequency power amplifier;
Figure 11 is that every group of the utility model has the loud speaker of two loud speakers and the connection diagram of another connected mode of audio-frequency power amplifier;
Figure 12 is that every group of the utility model has the loud speaker of a loud speaker and the connection diagram of a kind of connected mode of audio-frequency power amplifier;
Figure 13 is that every group of the utility model has the loud speaker of a loud speaker and the connection diagram of the another kind of connected mode of audio-frequency power amplifier;
Figure 14 is that every group of the utility model has the loud speaker of a loud speaker 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, 11 is audio-frequency power amplifier, and 12 is front panel, and 13 is left boxboard, 14 is right boxboard, and 15 is rear board.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment mono-
As shown in Figure 1 and Figure 2, dual relative sound wave of the present utility model merges audio amplifier can use wood materials (as medium-density plate or high-density plate) to make, and also can be shaped and make with plastic pressure injection, and the present embodiment adopts wood materials to make; Audio amplifier comprises inside and outside nested two casings independently separately, 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, the first phonocatheter 3 is installed in the inside of the first casing 1, one end of this first phonocatheter 3 is connected with this first outlet sound mouth 5, and the other end is free end, be arranged in the first casing 1; The second casing 2 is positioned at the first casing 1, form box structure in the case of the little case of large housing-case, the second casing 2 is provided with the second outlet sound mouth 6, the second phonocatheter 4 is installed in the inside of the second casing 2, one end of this second phonocatheter 4 is connected with this second outlet sound mouth 6, and the other end is free end, be arranged in the second casing 2; The first phonocatheter 3 is connected with ambient air, acoustic conductivity air-flow between ambient air and the first casing 1, and the second phonocatheter 4 is connected with ambient air, acoustic conductivity air-flow between ambient air and the second casing 2.
The volume of the first casing 1 (or volume) is greater than the volume (or volume) of the second casing 2, the volume V2 of the second casing 2 in the present embodiment: volume V1=1:3～6 of the first casing 1.The width of described the second casing 2 is identical with the width of the first casing 1, the two sides that are first and second casing 1,2 are coplanar, the front panel 12 of described the first casing 1 and the second casing 2 is coplanar, the second outlet sound mouth 6 is positioned on the front panel 12 of the first casing 1, described the first outlet sound mouth 5 is positioned on the lower boxboard and the either side boxboard upper boxboard of the first casing 1, and first outlet sound mouth 5 of the present embodiment is positioned on front panel 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 (equate) of the second outlet sound mouth 6, first and second outlet sound mouth 5,6 be shaped as 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 is long-pending, also can be that uiform section is long-pending, the 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 cross sectional shapes along short transverse are quadrangle or circle, wherein the first phonocatheter 3 is corresponding with the shape of described the first outlet sound mouth 5 along the cross sectional shape of short transverse, the second phonocatheter 4 is corresponding with the shape of described the second outlet sound mouth 6 along the cross sectional shape of short transverse.The length of the first phonocatheter 3 is greater than the length of the second phonocatheter 4.
The first set of speakers 7 is installed on the upper boxboard 8 of the second casing 2, on the lower boxboard 10 relative with upper boxboard 8, the second set of speakers 9 is installed, this first set of speakers 7 and the second set of speakers 9 are electrically connected to audio-frequency power amplifier 11 respectively; These two set of speakers include one～tetra-loudspeaker unit and form, the first set of speakers 7 and second set of speakers 9 of the present embodiment are comprised of the woofer unit of two three～eight cun of same model respectively, and what the present embodiment was used is 5 cun of woofers of four same model; Four loudspeaker units between two symmetrical, vibrating diaphragm to vibrating diaphragm setting, and totally four loudspeaker units in first and second set of speakers 7,9 to lay respectively at the second casing 2 outer and in the first casing 1.
Between the first set of speakers 7 and the second set of speakers 9, for same polarity is connected, can be connected in parallel, also can be connected in series.
Be connected in parallel as shown in FIG. 9 and 10, the positive pole of the first set of speakers 7 connects the positive pole of the second set of speakers 9, and the negative pole of the first set of speakers 7 connects the negative pole of the second loud speaker 9, and the both positive and negative polarity of two-loudspeaker group is electrically connected to audio-frequency power amplifier 11.Two loudspeaker units in same set of speakers are installed side by side, can adopt audio frequency sounding with being in parallel or being connected in series, and are connected in parallel as shown in figure 10, and the positive pole of two-loudspeaker unit links together, negative pole links together, and is connected in series as shown in Figure 9; When if loudspeaker unit is more, the negative pole of first loudspeaker unit is connected with the positive pole of second loudspeaker unit, and the negative pole of second loudspeaker unit is connected with the positive pole of the 3rd loudspeaker unit, by that analogy.
Be connected in series as shown in figure 11, the negative pole of the first set of speakers 7 connects the positive pole of the second set of speakers 9, the negative electricity of the positive pole of the first set of speakers 7 and the second set of speakers 9 is connected audio-frequency power amplifier 11, or the positive pole of the first set of speakers 7 connects the negative pole of the second set of speakers 9, the positive pole electrical connection audio-frequency power amplifier 11 of the negative pole of the first set of speakers 7 and the second set of speakers 9.The lower boxboard 10 of the second casing 2 leaves space apart between the lower boxboard of the first casing 1.
The tank material of the present embodiment can change plastics into, method manufacture with plastics (as ABS resin) injection-compression molding, specifically press the structure fabrication mould described in the present embodiment, mould is made the rear injection molding machine of plastic machine-shaping of using, then first and second set of speakers 7,9 is arranged on plastic box, finally with screw, plastic box is tightened together.
Embodiment bis-
As shown in Figure 3, Figure 4, the difference of the present embodiment and embodiment mono-is: in second set of speakers 9 of installing on first set of speakers 7 of installing on the upper boxboard 8 of the second casing 2 and lower boxboard 10, only have respectively a loudspeaker unit, two loudspeaker unit symmetries in two groups, vibrating diaphragm are to vibrating diaphragm setting.Between the first set of speakers 7 and the second set of speakers 9, for same polarity is connected, can be connected in parallel, also can be connected in series; Be connected in parallel as shown in figure 12, the positive pole of the first set of speakers 7 connects the positive pole of the second set of speakers 9, and the negative pole of the first set of speakers 7 connects the negative pole of 9 groups of the second loud speakers, and the both positive and negative polarity of two-loudspeaker group is electrically connected to audio-frequency power amplifier 11; Be connected in series as shown in Figure 13, Figure 14, the negative pole of the first set of speakers 7 connects the positive pole of the second set of speakers 9, the negative electricity of the positive pole of the first set of speakers 7 and the second set of speakers 9 is connected audio-frequency power amplifier 11, or the positive pole of the first set of speakers 7 connects the negative pole of the second set of speakers 9, the positive pole electrical connection audio-frequency power amplifier 11 of the negative pole of the first set of speakers 7 and the second set of speakers 9.
Embodiment tri-
As shown in Figure 5, Figure 6, this example is with the difference of embodiment bis-: the length of the width of the first casing 1 and the second casing 2 is identical, and the front panel of the second casing 2 and rear board are coplanar with the two sides of the first casing 1 respectively; Described the second outlet sound mouth 6 is positioned on the either side of left and right sides of the first casing 1, and described the first outlet sound mouth 5 is positioned on the lower boxboard and the either side boxboard upper boxboard of the first casing 1.First and second phonocatheter 3,4 center line is along its length arranged to mutually vertical.First and second set of speakers 7,9 symmetries are arranged on the left box body 13 and right boxboard 14 that the second casing 2 is relative, and the vibrating diaphragm of first and second set of speakers 7,9 is to vibrating diaphragm setting, and first and second set of speakers 7,9 is positioned at outside the second casing 2 and at the first casing 1.The lower boxboard of the lower boxboard 10 of the second casing 2 and the first casing 1 is coplanar.
Embodiment tetra-
As shown in Figure 7, Figure 8, the present embodiment is with the difference of embodiment bis-: first and second set of speakers 7,9 symmetries are arranged on the upper boxboard 8 and lower boxboard 10 that the second casing 2 is relative, the magnet of first and second set of speakers 7,9 is to magnet setting, and first and second set of speakers 7,9 is positioned at the second casing 2.
Operation principle of the present utility model is:
The vibrating diaphragm that the output audio power of audio-frequency power amplifier 11 puts on the loudspeaker unit in 7,9, two groups of set of speakers of first and second set of speakers simultaneously produces and seesaws simultaneously, and vibrate air, sounds.
When audio-frequency power amplifier 11 is output as "+", the vibrating diaphragm of the loudspeaker unit in the first set of speakers 7 vibrates forward (to the second casing 2 direction vibrations), also vibration forward of the vibrating diaphragm of the loudspeaker unit in the second set of speakers 9 simultaneously (equally also to the second casing 2 direction vibrations), two groups of relative sound waves have so just been produced, these two groups of sound waves complete sound wave and merge in the first casing 1 and in the second casing 2, then are transmitted to ambient air through the second phonocatheter 4; Meanwhile, ambient air air-flow is in the first phonocatheter 5 is transferred to the first casing 1.
When audio-frequency power amplifier 11 is output as "-", the vibrating diaphragm of the loudspeaker unit in the first set of speakers 7 is to after vibration (to the first casing 1 direction vibration), the vibrating diaphragm of the loudspeaker unit in the second loud speaker 9 is also to after vibration (equally also to the first casing 1 direction vibration) simultaneously, two groups of relative sound waves have so just been produced again, these two 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 5; Meanwhile, ambient air air-flow is in the second phonocatheter 6 is transferred to the second casing 2.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, be that woofer of the present utility model has the little case bass fusion of large case 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, successfully uses undersized woofer (4 "～6.5 ") and little audio amplifier, reaches the bass effect of large scale woofer (8 "～15 ") and large audio amplifier.
The utility model drives after loud speaker at audio-frequency power amplifier 11, two groups of diaphragms of loudspeaker produce vibration, form two groups of relative sound wave air-flows, sound wave by first and second casing 1,2 merges again, through phonocatheter separately, from two outlet sound mouths, send low-frequency sound wave, thereby bass sound wave is significantly strengthened, reach dual bass multiplication effect.The twin loudspeaker group that the utility model adopts, dual sound wave merges, make audio amplifier sensitivity be improved, reset distortion reduction, the effect of the low-frequency sound wave that two set of speakers send is given full play to, reach make that woofer is highly sensitive, distortion is little, volume is little, lightweight, the object that bass effect is simple and honest.
Claims (7)
1. a dual relative sound wave merges audio amplifier, it is characterized in that: this audio amplifier by inside and outside nested two separately independently casing form, the inside of each casing be all provided with ambient air be connected, at the phonocatheter of conducted acoustic waves air-flow between casing and ambient air separately, wherein the second casing (2) is positioned at the first casing (1), and two groups of set of speakers that are electrically connected to audio-frequency power amplifier (11) are installed on the second casing (2); Wherein two groups of set of speakers are arranged on respectively on two boxboards that described the second casing (2) is relative, loudspeaker unit in every group is one or more, and the quantity of the loudspeaker unit in every group is identical, each loudspeaker unit in every group respectively with another group in a loudspeaker unit be symmetrical arranged;
Two described set of speakers are comprised of the first set of speakers (7) and the second set of speakers (9), this first set of speakers (7) is upper with upper boxboard (8) and lower boxboard (10) that the second set of speakers (9) is arranged on respectively described the second casing (2), or on left boxboard (13) and right boxboard (14);
Described the first set of speakers (7) installation relative to the second set of speakers (9), the loudspeaker unit in the first set of speakers (7) is that vibrating diaphragm is installed vibrating diaphragm or magnet is installed magnet type with loudspeaker unit corresponding in the second set of speakers (9); Loudspeaker unit in described the first set of speakers (7) and the second set of speakers (9) is all identical;
Loudspeaker unit in described the first set of speakers (7) and the second set of speakers (9) is all installed side by side, each loudspeaker unit in every group is that audio frequency sounding is with being in parallel or being connected in series, when in parallel, the positive pole of each loudspeaker unit in every group is connected, negative pole links together, during series connection, the both positive and negative polarity of each loudspeaker unit is respectively and is connected in series in every group.
2. by dual relative sound wave claimed in claim 1, merge audio amplifier, it is characterized in that: described the first set of speakers (7) is in parallel or is connected in series for audio frequency is same with the second set of speakers (9), the first set of speakers (7) is connected with positive pole with the positive pole of the second set of speakers (9), negative pole is connected with negative pole, or the positive pole of one group of set of speakers and the negative pole of another set of speakers are connected.
3. by dual relative sound wave claimed in claim 1, merge audio amplifier, it is characterized in that: on described the first casing (1) and the second casing (2), be 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) being connected with described the first outlet sound mouth (5), in the second casing (2), be provided with the second phonocatheter (4) being connected with described the second outlet sound mouth (6).
4. by dual relative sound wave claimed in claim 3, merge audio amplifier, it is characterized in that: the sectional area of described the first outlet sound mouth (5) is more than or equal to the sectional area of the second outlet sound mouth (6), first and second outlet sound mouth (5,6) be shaped as quadrangle or circle, the sectional area of the first phonocatheter (3) is more than or equal to the sectional area of the second phonocatheter (4), and the length of the first phonocatheter (3) is greater than the length of the second phonocatheter (4).
5. by the dual relative sound wave described in claim 3 or 4, merge audio amplifier, it is characterized in that: described first and second phonocatheter (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 the 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 the second outlet sound mouth (6) along the cross sectional shape of short transverse.
6. by the dual relative sound wave described in claim 3 or 4, merge audio amplifier, it is characterized in that: the volume of described the first casing (1) is greater than the volume of the second casing (2), the width of the second casing (2) is identical with the width of the first casing (1), and the two sides of first and second casing (1,2) are coplanar; Described the second outlet sound mouth (6) is positioned on the front panel (12) of the first casing (1), and described the first outlet sound mouth (5) is positioned on the lower boxboard and the either side boxboard upper boxboard of the first casing (1).
7. by the dual relative sound wave described in claim 3 or 4, merge audio amplifier, it is characterized in that: the volume of described the first casing (1) is greater than the volume of the second casing (2), the width of described the first casing (1) is identical with the length of the second casing (2), and the front panel (12) of the second casing (12) and rear board (13) are coplanar with the two sides of the first casing (1) respectively; Described the second outlet sound mouth (6) is positioned on the either side of left and right sides of the first casing (1), and described the first outlet sound mouth (5) is positioned on the lower boxboard and the either side boxboard upper boxboard of the first casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320529992.8U CN203590421U (en) | 2013-08-28 | 2013-08-28 | Dual opposite sound wave fusion sound box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320529992.8U CN203590421U (en) | 2013-08-28 | 2013-08-28 | Dual opposite sound wave fusion sound box |
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| CN203590421U true CN203590421U (en) | 2014-05-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105812988A (en) * | 2014-12-30 | 2016-07-27 | 深圳纽斯声学***有限公司 | Dual-box subwoofer and television set internally provided with same |
| CN106331939A (en) * | 2015-06-19 | 2017-01-11 | 深圳纽斯声学***有限公司 | Integrated bar-type sound box |
| CN110300201A (en) * | 2019-07-29 | 2019-10-01 | Oppo广东移动通信有限公司 | Terminal device |
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2013
- 2013-08-28 CN CN201320529992.8U patent/CN203590421U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105812988A (en) * | 2014-12-30 | 2016-07-27 | 深圳纽斯声学***有限公司 | Dual-box subwoofer and television set internally provided with same |
| CN106331939A (en) * | 2015-06-19 | 2017-01-11 | 深圳纽斯声学***有限公司 | Integrated bar-type sound box |
| CN110300201A (en) * | 2019-07-29 | 2019-10-01 | Oppo广东移动通信有限公司 | Terminal device |
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