CN106488356B - Small-box large-sound-pressure three-frequency-division medium-high-sound coaxial sound box - Google Patents
Small-box large-sound-pressure three-frequency-division medium-high-sound coaxial sound box Download PDFInfo
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- CN106488356B CN106488356B CN201611141299.8A CN201611141299A CN106488356B CN 106488356 B CN106488356 B CN 106488356B CN 201611141299 A CN201611141299 A CN 201611141299A CN 106488356 B CN106488356 B CN 106488356B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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Abstract
The invention discloses a small-box large-sound-pressure three-frequency-division medium-high coaxial sound box, which comprises a box body, a high-pitch loudspeaker, a medium-pitch loudspeaker and a low-pitch loudspeaker, wherein the low-pitch loudspeaker is connected with the middle-pitch loudspeaker; a partition board is arranged in the box body, cavities are respectively formed in the box body and positioned on two sides of the partition board, a supporting plate is arranged in one cavity, and the supporting plate is obliquely arranged from the rear end to the front end of the box body; the other cavity of the box body is internally provided with an installation plate, a movable phase plate, a high pitch horn and a middle pitch horn; the structure of the invention can reduce the volume of the sound box, improve the sensitivity of the sound box and facilitate the control of the frequency band of the output sound.
Description
Technical Field
The invention relates to a sound box.
Background
The sound box converts the transmitted audio signal into sound to be emitted, so the design of the sound box is an important factor influencing the sound effect.
The prior sound box comprises a bass sound box, a low-high pitch sound box and a low-medium-high pitch sound box, the applicant applies a utility model patent with the name of medium-high pitch coaxial sound box application number of 201620257342.6 in 2016, and specifically discloses a sound box comprising a box body, a mesh enclosure, a tweeter and a woofer, wherein the mesh enclosure is arranged on the box body; the box body comprises a shell, wherein a middle loudspeaker fixing frame is respectively arranged on two sides of the middle part in the shell, a cavity is formed between the shell and the middle loudspeaker fixing frame, and a middle loudspeaker is arranged on the middle loudspeaker fixing frame; the high pitch horn is arranged between the middle pitch horns in the shell, the horn is arranged in the cavity, the middle pitch horn fixing frame is provided with a middle pitch outlet facing the horn, and a middle pitch sound outlet channel is formed between the middle pitch horn fixing frame and the horn. The structure can avoid interference, the sound of the sound box is more clear, but if a woofer is to be arranged, the volume of the sound box is large, and the sensitivity of the sound box is low.
Disclosure of Invention
The invention provides a small-box large-sound-pressure three-frequency-division medium-high-sound coaxial sound box, aiming at reducing the volume of the sound box, improving the sensitivity of the sound box and facilitating the control of the frequency band of the output sound.
In order to achieve the purpose, the small-box large-sound-pressure three-frequency-division medium-high-pitch coaxial sound box comprises a box body, a high-pitch loudspeaker, a medium-pitch loudspeaker and a low-pitch loudspeaker; a partition board is arranged in the box body, cavities are respectively formed in the two sides of the partition board in the box body, a supporting plate is arranged in one cavity, the supporting plate is obliquely arranged from the rear end to the front end of the box body, and the woofer is arranged on the supporting plate; the other cavity of the box body is internally provided with an installation plate, a movable phase plate, a high pitch horn and a middle pitch horn; the mounting plate is clamped between the partition plate and the box body, and a through hole is formed in the mounting plate; the middle part of the movable phase plate is provided with a high pitch through hole, and middle pitch through holes are respectively arranged at the two sides of the high pitch through hole in the movable phase plate; the basin edge of the middle-tone loudspeaker is clamped between the mounting plate and the movable phase plate, the middle part of the middle-tone loudspeaker is provided with a high-tone channel, and the high-tone channel is a loudspeaker channel; the high pitch loudspeaker is connected to the rear end face of the middle pitch loudspeaker through a connecting piece; the movable phase plate is connected with a high pitch horn which is communicated with a high pitch through hole, and a sound guide cylinder is arranged between the high pitch through hole and the high pitch channel; the middle-tone horn is arranged outside the high-tone horn and communicated with the middle-tone through hole; a woofer is mounted on the support plate.
The working principle of the sound box is as follows: the high pitch emitted by the high pitch horn enters the high pitch horn through the hole in the connecting piece, the high pitch channel and the sound guide tube, the high pitch is emitted through the high pitch horn, the middle pitch emitted by the middle pitch horn is divided into two middle pitches by the movable phase plate, the two middle pitches enter the middle pitch horn, and the middle pitch is emitted from the middle pitch horn; bass sounds from the woofer are emitted from the cabinet.
In the invention, the high pitch horn and the middle pitch horn are adopted, so that the sound paths of the middle pitch and the high pitch are the same, the aim of coaxiality of the middle pitch and the high pitch is realized, and the sound distortion of the sound box is reduced. In the structure of the invention, the middle part of the middle sound is partially blocked by the movable phase plate, and two middle sound through holes are adopted, which is equivalent to compressing one middle sound into two middle sounds, so that the sensitivity of the middle sound can be improved by 2-3 dB. The bass horn is obliquely installed, so that the volume of the box body is reduced, and the horn of the bass horn is formed by the box body, the supporting plate and the partition plate, so that the sensitivity of bass can be improved by 2-3 dB. In the invention, the diameters of the voice coils of the medium-pitch loudspeaker and the high-pitch loudspeaker are larger than the diameter of the existing voice coil, so that the power of the medium-pitch loudspeaker and the high-pitch loudspeaker is increased, the diameters of the magnets of the medium-pitch loudspeaker and the high-pitch loudspeaker are inevitably increased, and the medium-pitch loudspeaker is difficult to install in order to realize the coaxiality of medium and high tones, so the connecting piece is adopted in the invention.
Furthermore, the box body comprises a bottom plate, a top plate, a left side plate, a right side plate and a rear side plate, an included angle between the bottom plate and the top plate is an acute angle, the left side plate and the right side plate are parallel to each other, and the rear side plate is arranged on the rear end faces of the bottom plate, the top plate, the left side plate and the right side plate; the inner side of the rear side plate is provided with a clamping groove, the middle of the inner side of the bottom plate is provided with a clamping groove, the middle of the inner side of the top plate is provided with a clamping groove, and the partition plate is clamped in the clamping grooves of the rear side plate, the bottom plate and the top plate. The baffle is clamped through the clamping groove, so that the baffle can be positioned, and the baffle is firm and reliable to mount.
Furthermore, the supporting plate comprises a supporting plate body, a guide plate and a bending plate, wherein the supporting plate body inclines forwards and downwards, the guide plate extends forwards and downwards from the front end of the supporting plate body, the inclination angle of the guide plate is larger than that of the supporting plate body, and the bending plate extends downwards from the front end of the guide plate. The guide plate has a guide function on bass and the bending plate is convenient for fixing the support plate.
Furthermore, a supporting strip for supporting the supporting plate is fixed on the inner wall of the box body and the partition plate. This structure lets the fixed firm of bearing plate on the one hand, and on the other hand can reduce the vibration of bearing plate and box, improves the audio.
Furthermore, a first accommodating groove is formed in the front surface of the mounting plate, a second accommodating groove is formed in the rear surface of the movable phase plate, and the basin edge of the middle-tone loudspeaker is clamped in the first accommodating groove and the second accommodating groove. The basin edge is clamped through the first accommodating groove and the second accommodating groove, so that the middle-tone loudspeaker can be reliably fixed.
Further, the connecting piece includes connecting plate and position sleeve, and the connecting plate is connected with loudspeaker, is equipped with the hole on the connecting plate, and the position sleeve is equipped with on the front surface of connecting plate, and the position sleeve inserts in the high pitch passageway. Therefore, the medium and high-pitch horns can be reliably connected, the positioning of the medium and high-pitch horns can be more important realized, and the high pitch can be smoothly transmitted out.
Furthermore, the front end of the sound guide tube is inserted into the high-pitch through hole, the circumference of the sound guide tube is provided with a resisting step, the resisting step is in contact with the movable phase plate, and the rear end of the sound guide tube is inserted into the high-pitch channel. Therefore, the high pitch can be smoothly transmitted, the sound guide tube is convenient to mount, and the axial limiting effect can be realized by arranging the retaining step.
Furthermore, the high pitch horn comprises a high pitch bottom plate, a high pitch top plate, a sound guide piece, a high pitch left side plate and a high pitch right side plate, wherein a high pitch horn cavity is defined by the high pitch bottom plate, the high pitch top plate, the high pitch left side plate and the high pitch right side plate, the inner side surface of the high pitch bottom plate is a parabolic surface, the inner side surface of the high pitch top plate is a parabolic surface, and the high pitch left side plate and the high pitch right side plate are parallel to each other; the left side surface and the right side surface of the sound guide piece are parallel, the left side surface and the right side surface of the sound guide piece are respectively connected with the left treble side plate and the right treble side plate, the upper surface and the lower surface of the sound guide piece are intersected at the front end and the rear end, the upper surface and the lower surface of the sound guide piece are outwards cambered surfaces, and treble sound outlet channels are respectively formed between the sound guide piece and the treble bottom plate as well as between the sound guide piece and the. At the rear end of the sound guide piece, the technical problem of dressing filtering can be solved by adopting the structure.
Furthermore, the front end of the high pitch left side plate is provided with a high pitch left guide plate extending in an outward inclining mode, and the front end of the high pitch right side plate is provided with a high pitch right guide plate extending in an outward inclining mode. The range of high-pitch output is large, and high-pitch coaxiality can be better realized.
Furthermore, the middle-tone horn comprises a middle-tone left side plate and a middle-tone right side plate, the rear ends of the middle-tone left side plate and the middle-tone right side plate are respectively fixed on the movable phase plate, the lower ends of the middle-tone left side plate and the middle-tone right side plate are connected with the box body, and the upper ends of the middle-tone left side plate and the middle-tone right side plate are connected with the box body; the front ends of the middle left side plate and the middle right side plate form a horn shape. By utilizing the structure, the middle voice is divided into two parts, the coaxiality of the middle voice and the high voice can be better realized, and the sensitivity of voice output can be improved.
Drawings
Fig. 1 is a perspective view of a small-box large-sound-pressure three-frequency-division medium-high-sound coaxial sound box.
Fig. 2 is another perspective view of a small-box large-sound-pressure three-frequency-division medium-high-sound coaxial sound box.
Fig. 3 is an exploded view of a small-box large-sound-pressure three-frequency-division medium-high-sound coaxial sound box.
Fig. 4 is a perspective view of a small-box high-sound-pressure three-frequency-division medium-high-frequency coaxial sound box with a box part and a handle plate on one side removed.
Fig. 5 is another perspective view of the high-sound coaxial sound box in the three-frequency division of the small box large sound pressure with the box part and the handle plate on one side removed.
Fig. 6 is a front view of a small-box large-sound-pressure three-frequency-division medium-high-sound coaxial sound box.
Fig. 7 is a sectional view taken along line a-a of fig. 6.
Fig. 8 is a sectional view taken along line B-B in fig. 6.
Fig. 9 is a schematic view of the mounting plate, the movable phase plate, the mid-high horn and the mid-high horn.
Fig. 10 is an exploded view of the mounting plate, the movable phase plate, the midrange horn and the midrange horn.
Fig. 11 is an exploded view of another perspective of the mounting plate, the movable phase plate, the midrange horn and the midrange horn.
Fig. 12 is an exploded view of a medium and high pitch horn.
Fig. 13 is a top view of a medium and high-pitch horn.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, the small-box large-sound-pressure three-frequency-division medium-high coaxial sound box comprises a box body 1, a tweeter 2, a medium-tone horn 3, a woofer, a high-tone horn 4, a medium-tone horn 5 and a mesh cover 6.
The box body 1 comprises a bottom plate 11, a top plate 12, a left side plate 13, a right side plate 14 and a rear side plate 15, an included angle between the bottom plate 11 and the top plate 12 is an acute angle, the left side plate 13 and the right side plate 14 are parallel to each other, and the rear side plate 15 is installed on the rear end faces of the bottom plate 11, the top plate 12, the left side plate 13 and the right side plate 14.
A partition plate 101 is provided in the case 1. Be equipped with draw-in groove 151 on the medial surface of posterior lateral plate 15, be equipped with draw-in groove 111 in the middle part of the medial surface of bottom plate 11, be equipped with draw-in groove 121 in the middle part of the medial surface of roof 12, baffle 101 card is put in the draw-in groove of posterior lateral plate, bottom plate and roof, puts the baffle through the draw-in groove card, can not only fix a position the baffle, and the installation of baffle is firm, reliable moreover.
As shown in fig. 3 to 5, a middle plate 102 is fixed to the outer sides of the left side plate 13 and the right side plate 14, an inverted U-shaped groove 103 is formed in the middle plate 102, a stopper groove 104 is formed at each of the outer sides and both ends of the middle plate 102, and the front-rear length of the middle plate 102 is shorter than the front-rear length of the right and left side plates. A handle plate 105 is fixed on the outer side of the middle layer plate 102, an inverted U-shaped groove 106 is formed in the handle plate 105, and the height of the inverted U-shaped groove 106 is lower than that of the inverted U-shaped groove 104, so that a hand accommodating cavity is formed in the handle plate, fingers can conveniently stretch into the inner side of the handle plate, and the loudspeaker box can be conveniently carried. Because the front-back length of the middle layer plate 102 is shorter than the front-back length of the left side plate and the right side plate, the containing grooves are formed at the two ends of the inner side of the handle plate, the connecting blocks 107 are clamped in the containing grooves, the convex blocks 108 are arranged on the inner sides of the clamping blocks 107, and the convex blocks 108 are clamped in the limiting grooves 104, so that the connecting blocks can be prevented from moving up and down, the bolts 109 are arranged on the connecting blocks, and therefore adjacent sound boxes can be conveniently connected.
As shown in fig. 3 to 8, cavities are formed in the case 1 at both sides of the partition plate, respectively, and a support plate 70 is provided in one of the cavities. The support plate 70 includes a support plate body 701, a guide plate 702, and a bending plate 703, the support plate body 701 is tilted forward and downward, a woofer mounting hole 7011 is formed in the support plate body 701, the guide plate 702 extends forward and downward from the front end of the support plate body 701, the tilt angle of the guide plate 702 is greater than the tilt angle of the support plate body 701, the bending plate 703 extends downward from the front end of the guide plate 702, see fig. 3, a fixing seat 112 is formed in the bottom plate 11, and the bending plate 703 is fixed to the fixing seat 112 by screws. Referring to fig. 5 and 7, the inner wall of the case and the partition are fixed with the supporting bars 71 for supporting the supporting plate, specifically, the supporting bars 71 are fixed on the rear side plate 15 by screws, the supporting bars fixed on the rear side plate 15 are used for supporting the bottom surface of the rear end of the supporting plate body, the supporting bars 71 are fixed on the inner wall of the right side plate and are used for supporting the bottom surfaces of the right ends of the supporting plate body 701 and the guide plate 702, and the supporting bars 71 are fixed on the partition and are used for supporting the bottom surfaces of the left ends of the supporting plate 701 and the guide plate 702.
The woofer is installed on the woofer installation hole 7011, the woofer is also obliquely arranged because the support plate body is obliquely arranged, and the support plate 70, the partition plate 101, the right side plate 14, the top plate 12 and the rear side plate 15 form a low-tone horn when the loudspeaker box works, so that the sensitivity of bass can be improved by 2-3 dB. In addition, assuming that the frequency band of the woofer is 60-400Hz, because the woofer is arranged obliquely and the sound emitting direction of the woofer is inclined upwards, when the sound box sounds, the sound in the low frequency band will be weakened or even disappear, in this embodiment, the sound emitting frequency band of the point loudspeaker is changed into 80-400Hz, so that the sound emitting frequency band of the sound box can be easily controlled.
As shown in fig. 3 to 5 and 8, a mounting plate 8, a movable phase plate 9, a tweeter horn 4, a midrange horn 5, a midrange horn 3 and a tweeter 2 are provided in the other cavity of the cabinet 1.
The movable phase plate 9 is fixed to the mounting plate 8. The middle part of the movable phase plate 9 is provided with a through hole, a rib plate 91 is arranged in the through hole, the middle part of the rib plate 91 is provided with a high pitch through hole 92, and two sides of the rib plate 91 are respectively provided with a middle pitch through hole 93. A second accommodation groove 94 is provided on the rear surface of the movable phase plate.
As shown in fig. 8 to 11, the mediant loudspeaker 3 passes through the through hole 82 to locate the bowl rim in the first receiving groove and the second receiving groove, and the bowl rim of the mediant loudspeaker 3 is clamped by the mounting plate 8 and the movable phase plate 9. The middle loudspeaker 8 is provided with a high pitch channel 31, and the high pitch channel 31 is a 5-degree loudspeaker channel.
A sound guide tube 10 is arranged between the movable phase plate 9 and the middle loudspeaker 3, the front end of the sound guide tube 10 is inserted into the high pitch through hole 92, the circumference of the sound guide tube 10 is provided with a resisting step 1001, the resisting step 1001 is in contact with the movable phase plate 9, the rear end of the sound guide tube 10 is inserted into the high pitch channel 31 and is resisted through the step, and therefore, high pitches can be guided into the high pitch horn, and the axial positioning of the sound guide tube can be achieved. A stepped bore 32 is provided at the rear end of the mid range speaker coaxially with the treble passage.
The tweeter 2 is connected to the midrange 3 by a connector 30. The connecting piece 30 comprises a connecting plate 301 and a positioning sleeve 302, the connecting plate 301 is connected with the tweeter 2 through screws, a hole 3011 is arranged on the connecting plate 301, the positioning sleeve 302 is arranged on the front surface of the connecting plate 301, and the positioning sleeve 302 is inserted into the stepped hole 32. The middle and high-pitch loudspeaker can be reliably connected, the middle and high-pitch loudspeaker can be more importantly positioned, and meanwhile, the high pitch can be smoothly transmitted out. The sound outlet of the high pitch horn is a horn mouth, preferably a 5-degree horn hole.
As shown in fig. 8 to 13, the treble horn 4 includes a treble bottom plate 41, a treble top plate 42, a sound guide 43, a treble left side plate 44, and a treble right side plate 45.
The high pitch bottom plate 41, the high pitch top plate 42, the high pitch left side plate 44 and the high pitch right side plate 45 enclose a high pitch horn cavity, the inner side surface of the high pitch bottom plate 41 is a parabolic surface, the inner side surface of the high pitch top plate 42 is a parabolic surface, and the high pitch left side plate 44 and the high pitch right side plate 45 are parallel to each other; the left and right sides of the sound guide piece 43 are parallel, the left and right sides of the sound guide piece 43 are respectively connected with the left treble side plate and the right treble side plate, the upper surface and the lower surface of the sound guide piece 43 are intersected at the front end and the rear end, the upper surface and the lower surface of the sound guide piece are outwards cambered surfaces, and a treble sound outlet channel is respectively formed between the sound guide piece 43 and the treble bottom plate and the treble top plate. The treble left guide plate 46 extending obliquely outward is arranged at the front end of the treble left side plate 44, and the treble right guide plate 47 extending obliquely outward is arranged at the front end of the treble right side plate, so that the treble range is large, and the treble is coaxial in the better realization. The sound inlet of the high pitch horn is communicated with the high pitch through hole.
The middle-tone horn 5 comprises a middle-tone left side plate 51 and a middle-tone right side plate 52, the rear ends of the middle-tone left side plate 51 and the middle-tone right side plate 52 are provided with connecting plates which are fixed on the movable phase plate 9, the lower ends of the middle-tone left side plate 51 and the middle-tone right side plate 52 are connected with the box body, and the upper ends of the middle-tone left side plate and the middle-tone right side plate are connected with the box body; the front end of well sound left side board and well sound right side board outwards buckles step by step and forms loudspeaker form, is equipped with the fixed plate at the front end of well sound left side board and well sound right side board, and the fixed plate of well sound left side board is fixed on the terminal surface of box, and the fixed plate of well sound right side board is fixed on the preceding terminal surface of baffle, like this, can improve the fixed steadiness of well sound bugle.
The mesh enclosure 6 is arranged at the front part of the box body.
The working principle of the sound box is as follows: the high pitch emitted by the high pitch horn 2 enters the high pitch horn 4 through the hole in the connecting piece 30, the high pitch channel 31 and the sound guide tube 10, the high pitch is emitted from the upper and lower high pitch sound outlet channels in the high pitch horn 4, when the high pitch enters the high pitch horn 4, the back end is provided with a sound inlet, and the middle part forms a tip end by the sound guide piece, so the technical problem of comb-shaped filtering can be solved, simultaneously, the middle pitch emitted by the middle pitch horn 3 is divided into two middle pitches by the movable phase plate, the two middle pitches enter the middle pitch horn 5, the middle pitch is emitted from the middle pitch horn, and when the middle pitch passes through the movable phase plate, the middle pitch of the middle part is blocked; bass sounds from the woofer are emitted from the cabinet.
In the invention, the high pitch horn 4 and the middle pitch horn 5 are adopted, so that the sound paths of the middle pitch and the high pitch are the same, the aim of coaxiality of the middle pitch and the high pitch is realized, mutual interference is avoided, and the sound distortion of the sound box is reduced. In the structure of the invention, the middle part of the middle sound is partially blocked by the movable phase plate, and two middle sound through holes are adopted, so that the middle sound can be compressed into two middle sounds, and the sensitivity of the middle sound can be improved by 2-3 dB. The bass horn is obliquely installed, so that the volume of the box body is reduced, and the horn of the bass horn is formed by the box body, the supporting plate and the partition plate, so that the sensitivity of bass can be improved by 2-3 dB. In the invention, the diameters of the voice coils of the medium-pitch loudspeaker and the high-pitch loudspeaker are larger than the diameter of the existing voice coil, so that the power of the medium-pitch loudspeaker and the high-pitch loudspeaker is increased, the diameters of the magnets of the medium-pitch loudspeaker and the high-pitch loudspeaker are inevitably increased, and the medium-pitch loudspeaker is difficult to install in order to realize the coaxiality of medium and high tones, so the connecting piece is adopted in the invention.
Claims (1)
1. A small-box large-sound-pressure three-frequency-division medium-high-pitch coaxial sound box comprises a box body, a high-pitch loudspeaker, a medium-pitch loudspeaker and a low-pitch loudspeaker; the method is characterized in that: a partition board is arranged in the box body, cavities are respectively formed in the two sides of the partition board in the box body, a supporting plate is arranged in one cavity, the supporting plate is obliquely arranged from the rear end to the front end of the box body, and the woofer is arranged on the supporting plate; the other cavity of the box body is internally provided with an installation plate, a movable phase plate, a high pitch horn and a middle pitch horn; the mounting plate is clamped between the partition plate and the box body, and a through hole is formed in the mounting plate; the middle part of the movable phase plate is provided with a high pitch through hole, and middle pitch through holes are respectively arranged at the two sides of the high pitch through hole in the movable phase plate; the basin edge of the middle horn is clamped between the mounting plate and the movable phase plate, and the middle part of the middle horn is provided with a high-pitch channel; the high pitch loudspeaker is connected to the rear end face of the middle pitch loudspeaker through a connecting piece; the movable phase plate is connected with a high pitch horn which is communicated with a high pitch through hole, and a sound guide cylinder is arranged between the high pitch through hole and the high pitch channel; the middle-tone horn is arranged outside the high-tone horn and communicated with the middle-tone through hole; a bass loudspeaker is arranged on the supporting plate;
the supporting plate comprises a supporting plate body, a guide plate and a bending plate, wherein the supporting plate body inclines forwards and downwards, the guide plate extends forwards and downwards from the front end of the supporting plate body, the inclination angle of the guide plate is larger than that of the supporting plate body, and the bending plate extends downwards from the front end of the guide plate; the inner wall of the box body and the clapboard are fixed with supporting strips for supporting the supporting plate;
a first accommodating groove is formed in the front surface of the mounting plate, a second accommodating groove is formed in the rear surface of the movable phase plate, and a groove edge of the middle-tone loudspeaker is clamped in the first accommodating groove and the second accommodating groove;
the connecting piece comprises a connecting plate and a positioning sleeve, the connecting plate is connected with the tweeter, a hole is formed in the connecting plate, the positioning sleeve is arranged on the front surface of the connecting plate, and the positioning sleeve is inserted into the high-pitch channel;
the front end of the sound guide tube is inserted into the high-pitch through hole, the circumference of the sound guide tube is provided with a resisting step, the resisting step is contacted with the movable phase plate, and the rear end of the sound guide tube is inserted into the high-pitch channel;
the high pitch horn comprises a high pitch bottom plate, a high pitch top plate, a sound guide piece, a high pitch left side plate and a high pitch right side plate, wherein a high pitch horn cavity is defined by the high pitch bottom plate, the high pitch top plate, the high pitch left side plate and the high pitch right side plate; the left side surface and the right side surface of the sound guide piece are parallel, the left side surface and the right side surface of the sound guide piece are respectively connected with the high pitch left side plate and the high pitch right side plate, the front end and the rear end of the upper surface and the rear end of the lower surface of the sound guide piece are intersected, the upper surface and the lower surface of the sound guide piece are outward cambered surfaces, and high pitch sound outlet channels are respectively formed between the sound guide piece and the high pitch bottom plate as well as between the sound;
the front end of the high pitch left side plate is provided with a high pitch left guide plate extending outwards in an inclined way, and the front end of the high pitch right side plate is provided with a high pitch right guide plate extending outwards in an inclined way;
the middle-tone horn comprises a middle-tone left side plate and a middle-tone right side plate, the rear ends of the middle-tone left side plate and the middle-tone right side plate are respectively fixed on the movable phase plate, the lower ends of the middle-tone left side plate and the middle-tone right side plate are connected with the box body, and the upper ends of the middle-tone left side plate and the middle-tone right side plate are connected with the box body; the front ends of the middle-voice left side plate and the middle-voice right side plate form a horn shape;
the box body comprises a bottom plate, a top plate, a left side plate, a right side plate and a rear side plate, an included angle between the bottom plate and the top plate is an acute angle, the left side plate and the right side plate are parallel to each other, and the rear side plate is arranged on the rear end faces of the bottom plate, the top plate, the left side plate and the right side plate; the inner side surface of the rear side plate is provided with a clamping groove, the middle part of the inner side surface of the bottom plate is provided with a clamping groove, the middle part of the inner side surface of the top plate is provided with a clamping groove, and the partition plate is clamped in the clamping grooves of the rear side plate, the bottom plate and the top plate;
the sound outlet of the high pitch horn is a horn hole of 5 degrees.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141299.8A CN106488356B (en) | 2016-12-12 | 2016-12-12 | Small-box large-sound-pressure three-frequency-division medium-high-sound coaxial sound box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141299.8A CN106488356B (en) | 2016-12-12 | 2016-12-12 | Small-box large-sound-pressure three-frequency-division medium-high-sound coaxial sound box |
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| CN106488356A CN106488356A (en) | 2017-03-08 |
| CN106488356B true CN106488356B (en) | 2021-04-13 |
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| CN107172563B (en) * | 2017-05-19 | 2020-05-22 | 恩平市影响电子科技有限公司 | Method for separately installing horn and horn |
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| CN103796129A (en) * | 2012-11-05 | 2014-05-14 | 曾山 | Coaxial-line array sound box |
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| CN205510329U (en) * | 2016-03-30 | 2016-08-24 | 广州蓝爵音响设备有限公司 | Coaxial audio amplifier of high middle pitch |
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| CN2622971Y (en) * | 2002-11-26 | 2004-06-30 | 邱金国 | Improved structure of vehicle loudspeakers |
| CN2620452Y (en) * | 2003-05-17 | 2004-06-09 | 李阿玉 | Four frequency division coaxial load-speaker |
| CN204362280U (en) * | 2014-12-08 | 2015-05-27 | 胡学武 | Three frequency division is with chamber supercharging loud speaker |
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| CN106488356A (en) | 2017-03-08 |
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