CN203968338U - Acoustics - Google Patents
Acoustics Download PDFInfo
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- CN203968338U CN203968338U CN201420226577.XU CN201420226577U CN203968338U CN 203968338 U CN203968338 U CN 203968338U CN 201420226577 U CN201420226577 U CN 201420226577U CN 203968338 U CN203968338 U CN 203968338U
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- phase
- reversing tube
- air inlet
- gas outlet
- reversing
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- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model discloses a kind of acoustics, comprise casing, phonation unit, and be located in casing and for the sounding chamber of accommodating phonation unit, in casing, be provided with the first phase-reversing tube and the second phase-reversing tube, the first phase-reversing tube and the second phase-reversing tube are curved, the first phase-reversing tube and the second phase-reversing tube are located at the periphery in sounding chamber, and the air inlet of the air inlet of the first phase-reversing tube and the second phase-reversing tube is communicated with sounding chamber, and the gas outlet of the gas outlet of the first phase-reversing tube and the second phase-reversing tube is located on casing respectively.The utility model has been simplified the structure of sound equipment, has improved the low-frequency effect of sound equipment.
Description
Technical field
The utility model relates to sound equipment field, particularly a kind of acoustics.
Background technology
Along with the development of acoustic product, the volume of acoustic product is done less and less, but but more and more higher to the requirement of sound, especially requires little sound equipment also will send good bass.But sound equipment can produce gas compression phenomenon when playing bass in sound equipment, if discharge and will produce low-frequency noise not in time, and then affect the low frequency tonequality of sound equipment.
At present, for improving the low frequency characteristic of little sound equipment, common way is that phase-reversing tube is set on loud speaker, by phase-reversing tube by acoustic irradiation to audio amplifier outside, and the sound wave of the same frequency sending with sound equipment phonation unit stack, thereby strengthen the low-frequency effect of sound equipment, and the area of sound wave air-flow by phase-reversing tube radiation is more, low-frequency effect is better.But consider the volume relationship of sound equipment, it is too large, oversize that phase-reversing tube can not be done, and is typically provided to straight tube.When sound equipment is play bass, the sound wave air-flow producing in sound equipment is through the promotion of loudspeaker, entering to phase-reversing tube discharges, it is too fast that but the phase-reversing tube air-flow that adopts straight pipe type discharges, easily form turbulent flow, so that sound wave air-flow is at the lower noise of the outlet forming frequency of inverted image pipe, and therefore, effect is also barely satisfactory.
Utility model content
Main purpose of the present utility model, for a kind of acoustics is provided, is intended to improve the low-frequency effect of sound equipment.
To achieve these goals, the utility model proposes a kind of acoustics, this acoustics comprises casing, phonation unit, and be located in described casing and for the sounding chamber of accommodating described phonation unit, in described casing, be provided with the first phase-reversing tube and the second phase-reversing tube, described the first phase-reversing tube and the second phase-reversing tube are curved, described the first phase-reversing tube and the second phase-reversing tube are located at the periphery in described sounding chamber, the air inlet of the air inlet of described the first phase-reversing tube and described the second phase-reversing tube is communicated with described sounding chamber, the gas outlet of the gas outlet of described the first phase-reversing tube and described the second phase-reversing tube is located at respectively on described casing.
Preferably, described the first phase-reversing tube and the second phase-reversing tube are circular arc, and radian is greater than 90 degree, are less than 180 degree.
Preferably, described casing comprises inwall and the outer wall that is respectively annular, and described inwall and outer wall are coaxial; The cavity area that described inwall surrounds forms described sounding chamber, and described inwall and outer wall are bonded with each other by the extended fastener of the end face by described inwall and outer wall, forms an airtight cannelure; In described cannelure, be provided with the dividing plate that it is evenly separated into described the first phase-reversing tube and described the second phase-reversing tube; The air inlet of the air inlet of described the first phase-reversing tube and described the second phase-reversing tube is located at respectively on described inwall; The gas outlet of the gas outlet of described the first phase-reversing tube and described the second phase-reversing tube is located at respectively on described outer wall.
Preferably, line between described the first phase-reversing tube and the air inlet of the second phase-reversing tube is divided into by described inwall the Symmetrical Circular Arc that two radians are 180 degree, and the line between described the first phase-reversing tube and the gas outlet of the second phase-reversing tube is divided into by described outer wall the Symmetrical Circular Arc that two radians are 180 degree.
Preferably, the two ends of described the first phase-reversing tube are located at respectively in the air inlet of described the first phase-reversing tube and gas outlet, and the two ends of described the second phase-reversing tube are located at respectively in the air inlet of described the second phase-reversing tube and gas outlet.
Preferably, the shape of the air inlet of described the first phase-reversing tube and the second phase-reversing tube is identical with the shape of the gas outlet of described the first phase-reversing tube and the second phase-reversing tube.
Preferably, the air inlet of described the first phase-reversing tube and described the second phase-reversing tube is horn-like, and the cross section of described air inlet reduces gradually along inner side to the outside of described inwall; And/or the gas outlet of described the first phase-reversing tube and described the second phase-reversing tube is horn-like, and the cross section of described air inlet increases gradually along inner side to the outside of described outer wall.
Preferably, the inwall of described the first phase-reversing tube and described the second phase-reversing tube is smooth surface.
Preferably, the sidewall of described casing is provided with for the mounting groove of binding post is installed, and on the upper surface of described casing, is concaved with wiring groove, and one end of described wiring groove is communicated with described box house, and the other end is communicated with described mounting groove.
The utility model, by the periphery in sounding chamber, the first phase-reversing tube is set and the second phase-reversing tube is evenly divided into two strands by the air-flow in sounding chamber, the flow area of sound wave air-flow is increased, again due to the first phase-reversing tube and the second phase-reversing tube curved, it is more steady when sound wave air-flow is flowed in the first phase-reversing tube and the second phase-reversing tube, can not produce noise, thereby improve the low-frequency effect of sound equipment.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model acoustics;
Fig. 2 is the assembling exploded view of Fig. 1;
Fig. 3 is the distribution schematic diagram of the first phase-reversing tube and the second phase-reversing tube in acoustics shown in Fig. 1;
Fig. 4 is a cross-sectional view of the utility model acoustics.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model proposes a kind of acoustics, referring to figs. 1 through Fig. 4, in one embodiment, this acoustics comprises casing 10, phonation unit (figure does not indicate), and is located in described casing 10 and for the sounding chamber 20 of accommodating described phonation unit.Wherein, the shape of casing 10 is not limit, and phonation unit can be loud speaker.
In the present embodiment, for realizing the flow area that increases sound wave air-flow, to improve sound equipment low-frequency effect, in described casing 10, be also provided with the first phase-reversing tube 31 and the second phase-reversing tube 32, described the first phase-reversing tube 31 and the second phase-reversing tube 32 are curved, certainly, in order to realize the integrally-built rational deployment of sound equipment, loudspeaker box structure is simplified more, described the first phase-reversing tube 31 and the second phase-reversing tube 32 can further be arranged to be circular arc, and radian is greater than 90 degree, be less than 180 degree.Wherein, the first phase-reversing tube 31 and second phase-reversing tube 32 of curved setting comprise arc convex and arc-shaped concave, described the first phase-reversing tube 31 and the second phase-reversing tube 32 are located at the periphery in described sounding chamber 20, and the arc-shaped concave of described the first phase-reversing tube 31 and the second phase-reversing tube 32 is towards described sounding chamber 20.
In the present embodiment, on the first phase-reversing tube 31 and the second phase-reversing tube 32, be provided with air inlet and gas outlet, particularly, the air inlet 31a of described the first phase-reversing tube 31 and gas outlet 31b are arranged on the pipe shaft of the first phase-reversing tube 31, the air inlet 32a of described the second phase-reversing tube 32 and gas outlet 32b are arranged on the pipe shaft of described the second phase-reversing tube 32, or, the air inlet 31a of described the first phase-reversing tube 31 and gas outlet 31b are located at respectively the two ends of described the first phase-reversing tube 31, the air inlet 32a of described the second phase-reversing tube 32 and gas outlet 32b are located at respectively the two ends of described the second phase-reversing tube 32.And air inlet and gas outlet are while being located at the two ends of the first phase-reversing tube 31 and the second phase-reversing tube 32, can increase the flow area of sound wave air-flow.
And, in the present embodiment, the air inlet 32a of the air inlet 31a of described the first phase-reversing tube 31 and described the second phase-reversing tube 32 is communicated with described sounding chamber 20, and the gas outlet 31a of the gas outlet 31b of described the first phase-reversing tube 31 and described the second phase-reversing tube 32 is located at respectively on described casing 10.
The acoustics the utility model proposes, by the periphery in sounding chamber 20, the first phase-reversing tube 31 is set and the second phase-reversing tube 32 is evenly divided into two strands by the air-flow in sounding chamber 20, the flow area of sound wave air-flow is increased, again due to the first phase-reversing tube 31 and the second phase-reversing tube 32 curved, make sound wave air-flow interior more steady when mobile at the first phase-reversing tube 31 and the second phase-reversing tube 32, can not produce noise, thereby improve the low-frequency effect of sound equipment.
Based on above-described embodiment, further, with reference to Fig. 1 and Fig. 3, in order to simplify Sound design, make sound equipment volume less, described casing 10 comprises inwall 11 and the outer wall 12 that is respectively annular, described inwall 11 and outer wall 12 are coaxial; The cavity area that described inwall 11 surrounds forms described sounding chamber 20, described inwall 11 can mutually combine by fastener with outer wall 12, form an airtight cannelure, or described inwall 11 by being bonded with each other by described inwall 11 and the extended fastener of end face of outer wall 12, forms an airtight cannelure with outer wall 12; In described cannelure, be provided with the dividing plate 13 that it is evenly separated into described the first phase-reversing tube 31 and described the second phase-reversing tube 32, the quantity of this dividing plate 13 is not limit; The air inlet 32a of the air inlet 31a of described the first phase-reversing tube 31 and described the second phase-reversing tube 32 is located at respectively on described inwall 11; The gas outlet 32b of the gas outlet 31b of described the first phase-reversing tube 31 and described the second phase-reversing tube 32 is located at respectively on described outer wall 12.Understandable, because the first phase-reversing tube 31 and described the second phase-reversing tube 32 are formed by 10 body structures of casing, therefore, can reduce the volume of whole sound equipment, thereby can make that the volume of sound equipment does less.
Further, with reference to Fig. 1 and Fig. 3, in order to realize all directions of audio amplifier, all there is bass effect preferably, line between described the first phase-reversing tube 31 and the air inlet of the second phase-reversing tube 32 is divided into by described inwall 11 Symmetrical Circular Arc that two radians are 180 degree, and the line between described the first phase-reversing tube 31 and the gas outlet of the second phase-reversing tube 32 is divided into by described outer wall 12 Symmetrical Circular Arc that two radians are 180 degree.In the present embodiment, during sound equipment sounding, can be so that the sound wave air-flow giving off through the first phase-reversing tube 31 and the second phase-reversing tube 32, to the surrounding of sound enclosure 10, evenly spread, thereby can realize sound equipment 360 degree, all there is good bass effect.
Further, with reference to Fig. 1 and Fig. 3, disorderly in order to prevent the sound wave air current flow in the first phase-reversing tube 31 and the second phase-reversing tube 32, the shape of the air inlet of described the first phase-reversing tube 31 and the second phase-reversing tube 32 is identical with shape, the size of the gas outlet of described the first phase-reversing tube 31 and the second phase-reversing tube 32.Be understandable that, when the air-flow of air inlet is identical with the air flow rate of gas outlet, not only can guarantee that charge air flow is consistent with the amount that goes out entraining air stream, and can make air-flow interior steadily mobile at the first phase-reversing tube 31 and the second phase-reversing tube 32.
Further, with reference to Fig. 1 and Fig. 3, described the first phase-reversing tube 31 is horn-like with the air inlet of described the second phase-reversing tube 32, and the cross section of described air inlet reduces gradually along inner side to the outside of described inwall 11; And/or described the first phase-reversing tube 31 is horn-like with the gas outlet of described the second phase-reversing tube 32, and the cross section of described air inlet increases gradually along inner side to the outside of described outer wall 12.In the present embodiment, the air inlet of the first phase-reversing tube 31 and the second phase-reversing tube 32 is arranged to horn-like, can guarantee entering in the first phase-reversing tube 31 and the second phase-reversing tube 32 from sounding chamber 20 of airflow smooth, described the first phase-reversing tube 31 is horn-like with the gas outlet of described the second phase-reversing tube 32, can guarantee that the air-flow in the first phase-reversing tube 31 and the second phase-reversing tube 32 can discharge smoothly.
Further, with reference to Fig. 1 and Fig. 3, when preventing that sound wave air-flow from flowing through in the first phase-reversing tube 31 and the second phase-reversing tube 32, the inwall 11 of air-flow and the first phase-reversing tube 31 and the second phase-reversing tube 32 rubs and sends noise, and described the first phase-reversing tube 31 is smooth surface with the inwall 11 of described the second phase-reversing tube 32.
In addition, with reference to Fig. 1, Fig. 2 and Fig. 3, for convenience of wiring, the sidewall of described casing 10 is provided with for the mounting groove 41 of binding post 40 is installed, on the upper surface s of described casing 10, be concaved with wiring groove 42, one end of described wiring groove 42 is communicated with described casing 10 inside, and the other end is communicated with described mounting groove 41.Particularly, on the sidewall of described casing 10, be provided with two described mounting grooves 41, and the line between two described mounting grooves 41 is divided into by described outer wall 12 Symmetrical Circular Arc that two radians are 180 degree.Wherein, binding post 40 can be power access end or audio output.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. an acoustics, comprise casing, phonation unit, and be located in described casing and for the sounding chamber of accommodating described phonation unit, it is characterized in that, in described casing, be provided with the first phase-reversing tube and the second phase-reversing tube, described the first phase-reversing tube and the second phase-reversing tube are curved, described the first phase-reversing tube and the second phase-reversing tube are located at the periphery in described sounding chamber, the air inlet of the air inlet of described the first phase-reversing tube and described the second phase-reversing tube is communicated with described sounding chamber, and the gas outlet of the gas outlet of described the first phase-reversing tube and described the second phase-reversing tube is located at respectively on described casing.
2. acoustics as claimed in claim 1, is characterized in that, described the first phase-reversing tube and the second phase-reversing tube are circular arc, and radian is greater than 90 degree, is less than 180 degree.
3. acoustics as claimed in claim 2, is characterized in that, described casing comprises inwall and the outer wall that is respectively annular, and described inwall and outer wall are coaxial; The cavity area that described inwall surrounds forms described sounding chamber, and described inwall and outer wall are bonded with each other by the extended fastener of the end face by described inwall and outer wall, forms an airtight cannelure; In described cannelure, be provided with the dividing plate that it is evenly separated into described the first phase-reversing tube and described the second phase-reversing tube; The air inlet of the air inlet of described the first phase-reversing tube and described the second phase-reversing tube is located at respectively on described inwall; The gas outlet of the gas outlet of described the first phase-reversing tube and described the second phase-reversing tube is located at respectively on described outer wall.
4. acoustics as claimed in claim 3, it is characterized in that, line between described the first phase-reversing tube and the air inlet of the second phase-reversing tube is divided into by described inwall the Symmetrical Circular Arc that two radians are 180 degree, and the line between described the first phase-reversing tube and the gas outlet of the second phase-reversing tube is divided into by described outer wall the Symmetrical Circular Arc that two radians are 180 degree.
5. the acoustics as described in claim 3 or 4, it is characterized in that, the two ends of described the first phase-reversing tube are located at respectively in the air inlet of described the first phase-reversing tube and gas outlet, and the two ends of described the second phase-reversing tube are located at respectively in the air inlet of described the second phase-reversing tube and gas outlet.
6. acoustics as claimed in claim 5, is characterized in that, the shape of the air inlet of described the first phase-reversing tube and the second phase-reversing tube is identical with the shape of the gas outlet of described the first phase-reversing tube and the second phase-reversing tube.
7. acoustics as claimed in claim 6, is characterized in that, the air inlet of described the first phase-reversing tube and described the second phase-reversing tube is horn-like, and the cross section of described air inlet reduces gradually along inner side to the outside of described inwall; And/or the gas outlet of described the first phase-reversing tube and described the second phase-reversing tube is horn-like, and the cross section of described air inlet increases gradually along inner side to the outside of described outer wall.
8. acoustics as claimed in claim 7, is characterized in that, the inwall of described the first phase-reversing tube and described the second phase-reversing tube is smooth surface.
9. acoustics as claimed in claim 8, it is characterized in that, the sidewall of described casing is provided with for the mounting groove of binding post is installed, and on the upper surface of described casing, is concaved with wiring groove, one end of described wiring groove is communicated with described box house, and the other end is communicated with described mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226577.XU CN203968338U (en) | 2014-05-05 | 2014-05-05 | Acoustics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226577.XU CN203968338U (en) | 2014-05-05 | 2014-05-05 | Acoustics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203968338U true CN203968338U (en) | 2014-11-26 |
Family
ID=51928875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420226577.XU Expired - Lifetime CN203968338U (en) | 2014-05-05 | 2014-05-05 | Acoustics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203968338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113873365A (en) * | 2021-10-11 | 2021-12-31 | 歌尔科技有限公司 | Sound box |
-
2014
- 2014-05-05 CN CN201420226577.XU patent/CN203968338U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113873365A (en) * | 2021-10-11 | 2021-12-31 | 歌尔科技有限公司 | Sound box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141126 |
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| CX01 | Expiry of patent term |