CN201577183U - Wine barrel-shaped bass reflex - Google Patents
Wine barrel-shaped bass reflex Download PDFInfo
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- CN201577183U CN201577183U CN2009203151262U CN200920315126U CN201577183U CN 201577183 U CN201577183 U CN 201577183U CN 2009203151262 U CN2009203151262 U CN 2009203151262U CN 200920315126 U CN200920315126 U CN 200920315126U CN 201577183 U CN201577183 U CN 201577183U
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- sound
- box body
- reversing tube
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Abstract
The utility model discloses a wine barrel-shaped bass reflex which comprises a sound box body and a sound box support, wherein the sound box body comprises a wine barrel-shaped box body, a loudspeaker arranged on the front end surface of the box body and an inverted tube arranged in the box body, wherein an inverted hole is formed on the back end surface of the box body, one end of the inverted tube is arranged at the inverted hole and vertically fixedly connected with the back end surface of the box body, the loudspeaker is electrically connected with an external sound source through a binding post of the loudspeaker, and wave-shaped sound-proof cotton is arranged on the inner wall of the box body. The wine barrel-shaped bass reflex can eliminate the harmonic distortion and the resonance of sound quality caused by the surface and edge angles of a flat plate type box body of the ordinary sound box, increase the low-frequency diving depth and reduce the non-linear distortion of sound frequency; the barrel-shaped design of the box body can change the insufficiency of poor anti-impact capability of the ordinary sound box, greatly improve the mechanical performance of the structure of the sound box, and bear greater audio power; simultaneously, the wine barrel-shaped design of the sound box is beautiful, elegant and rich in sense of art and can perfectly combine the functions with the decoration together.
Description
Technical field
The utility model relates to a kind of phase inverted cabinet, relates in particular to a kind of fat shape phase inverted cabinet.
Background technology
Existing in the market phase inverted cabinet, mostly be common long cube or regular cube profile, though such audio amplifier is made fairly simple and convenient, but its box shape is commonplace, casing is bigger to the reproduction quality influence of tonequality, be easy to generate harmful standing wave composition in the parallel casing of wall, standing wave easily concentrates on a certain frequency, vibration velocity to diffuser exerts an influence, bigger platen area, it is sharp-pointed that not only the directive property that makes the audio amplifier medium-high frequency becomes, also can make the resonance problems of panel become more outstanding, simultaneously, sound wave (especially low frequency) can motivate secondary wave on the corner angle of long cube or regular cube shape casing, cause the stack of sound wave, influence the precision of phase place, in addition because there is surface of discontinuity in the casing of long cube shaped or regular cube shape to the diffraction of sound wave, its relatively the shape of symmetry be easy to cause the peak value of response of intermediate frequency.In order to solve the deficiency that common audio amplifier exists standing wave interference and covibration easily, prior art has been done some improvement at different aspect, as China Patent No. 200520058062.4, name is called the utility model patent of compound audio amplifier, comprise casing, be located at the loud speaker and the phase-reversing tube of the different frequency on the casing wall, at the cabinet wall face and cover in the cage at the loud speaker back side, described casing is composited by the material of three layers of density, though casing is reinforced, simultaneously by increasing the phase mutual interference that cage prevents audio frequency at loud speaker back, but because the difference on different big or small sound boxes plane, having brought great inconvenience for design and making, still is not very desirable to the reduction of audio frequency.
The utility model content
The utility model mainly solves the harmonic wave harm of common audio amplifier and the technical problem of audio frequency distortion; Provide a kind of can harmonic carcellation influence and resonance, improve audio frequency phase accuracy, total harmonic distortion little, to bear audio power big, elegant in appearance again simultaneously and be rich in the fat shape phase inverted cabinet of artistic feeling.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
The utility model comprises audio amplifier body and sound box bracket, described audio amplifier body comprises fat shape casing, be located at the loud speaker of casing front end face and be located at the interior phase-reversing tube of casing, have paraphase hole on the rear end face of described casing, described paraphase hole and described phase-reversing tube match, one end of phase-reversing tube is located at the paraphase hole place and fixedlys connected with the rear end face of casing, described loud speaker is electrically connected with external sound source by the loudspeaker wiring post, audio amplifier adopts backpack paraphase principle, the outlet of phase-reversing tube is arranged on the rear end face of audio amplifier, phase-reversing tube output audio signal and loud speaker front end signal are with superimposed, make the low frequency dive darker, nonlinear distortion is little, highly sensitive, alerting ability improves, and has expanded the width of replay sound field.
As preferably, the material of described casing is a high density, the high-grade timber of high rigidity, whole box body adopts the high-grade timber sheet to be spliced into round barrel shape broad in the middle small in ends, adopt import glue seamless spliced between wood chip, the round barrel shape design of audio amplifier, changed the deficiency of common audio amplifier impact resistance difference, make the mechanical property of loudspeaker box structure obtain very big lifting, the arcuate flanks of casing is provided with some ring-type clamping bands, the casing arc of described clamping band and relevant position matches, described clamping band is provided with some bubble nails hole, clamping band is fixed with staving by the bubble nail, high density, the fat shape casing that the high-grade timber of high rigidity is made, hoop band with the tight banding of timber sheet, increased the ability of the anti-audio frequency peak value of casing, it is sharp-pointed to the reflection standing wave directive property of audio frequency to have eliminated dull and stereotyped casing, panel resonance harm distinct issues, avoided the influence that the diffuser vibration velocity is produced of concentrating of harmful standing wave, tonequality is good when big volume is exported, the tone sense foot makes audio amplifier can bear bigger audio power.
As preferably, the material of described clamping band is a metal material, and intensity is big, fastening firmly and reliable.
As preferably, described loud speaker is a full range formula foam Bian Keding cone loudspeaker, under the prerequisite that does not reduce tonequality reduction degree and tone color, the volume of audio amplifier is reduced, and makes simply, and the width of sound field increases.
As preferably, described phase-reversing tube is the straight tube of hollow, the paraphase hole of the external diameter of described phase-reversing tube and described box back face coincide, one end of phase-reversing tube is located at the paraphase hole place and fixedlys connected with the rear end face of casing, the Surface Vertical of the axis of described phase-reversing tube and box back face, the axis of phase-reversing tube and the parallel axes of loud speaker, the axis of phase-reversing tube and the axis of loud speaker be not on same straight line, the phase-reversing tube that well-designed and rear end face is installed make loud speaker after 180 ° of the ripple paraphase of shaking, and export through phase-reversing tube, the audio amplifier layout is flexible, and the tonequality of audio frequency is better, and tone color is softer and full.
As preferably, also be provided with the loudspeaker wiring post on the described box back face, described loudspeaker wiring post is located at the top of described paraphase hole, the material of described loudspeaker wiring post is copper, the surface of loudspeaker wiring post is provided with Gold plated Layer, described loud speaker is electrically connected with the loudspeaker wiring post, and copper gold-plated loudspeaker wiring post has been eliminated the audio signal decay and disturbed, and makes tone color purer.
As preferably, described cabinet wall is provided with sound-absorbing material, and described sound-absorbing material surface is provided with irregular some projectioies and shrinkage pool, the use of lenticular sound-absorbing material improves 4 times than flat sound-absorbing material acoustic absorptivity, eliminated the interference of harmonic wave to audio frequency, made audio frequency purer, reproducibility is better.
As preferably, described support comprises front supporting plate, rear carrier plate and connecting rod, described front supporting plate and rear carrier plate link into an integrated entity by described connecting rod, the top of described front and rear support plate is provided with arc-shaped groove, the arcuate flanks of described groove and described sound box matches, be provided with circular-arc space in the middle of the bottom of described front and rear support plate, described circular-arc breach makes the two ends, bottom of front and rear support plate form runners, described runners contacts with supporting surface, front and rear support plate is fixed by connecting rod, make support not only attractive in appearance but also firm, it is firm that arc-shaped groove is placed the audio amplifier body, the material that the circular-arc breach of support plate bottom has been saved support uses, and it is more stable that support is placed, and it is littler to resonate.
As preferably, the arc-shaped groove of described front and rear support plate is provided with one deck vibration absorptive material, and described audio amplifier body is placed on the sound box bracket by vibration absorptive material, and the vibration absorptive material that is provided with on the groove makes audio frequency reduce by the resonance that support causes.
The beneficial effects of the utility model are: eliminated the flat tank surface of common audio amplifier and harmonic distortion and the resonance that corner angle bring tonequality, on tonequality, promoted the soft property of sound, improved sensitivity, increased the submerged depth of low frequency, made the nonlinear distortion of audio frequency little, sound field is broad, round audio amplifier can bear bigger audio power, simultaneously, the configuration design of audio amplifier fat formula is elegant in appearance and be rich in artistic feeling, and function and decoration are perfectly combined.
Description of drawings
Fig. 1 is a left view before a kind of three-dimensional profile of the present utility model.
Fig. 2 is a right view after a kind of three-dimensional profile of the present utility model.
Fig. 3 is a kind of casing generalized section of the present utility model.
Fig. 4 is a kind of sound box bracket stereogram of the present utility model.
1. fat shape casings among the figure, 2. loud speaker, 3. phase-reversing tube, 4. paraphase hole, 5. loudspeaker wiring post, 6. clamping band, 7. front supporting plate, 8. rear carrier plate, 9. connecting rod, 10. arc-shaped groove, 11. circular-arc breach, 12. vibration absorptive materials, 13. runners.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the inverted phase type Wine bucket shaped loudspeaker box of present embodiment, as shown in Figure 1, Figure 2, Figure 3 and Figure 4, comprise audio amplifier body and sound box bracket, the audio amplifier body comprises fat shape casing 1, be installed in the full range formula loud speaker 2 of casing 1 front end face and be installed in phase-reversing tube 3 in the casing 1, have paraphase hole 4 on the rear end face of casing 1, paraphase hole 4 matches with phase-reversing tube 3, and an end of phase-reversing tube 3 is placed on paraphase hole 4 places and is connected with the rear end face vertical fixing of casing 1.Audio amplifier adopts backpack paraphase principle, and the rear portion at casing is opened in the outlet of phase-reversing tube 3, after the caliber d of phase-reversing tube 3 determines, and the length L of phase-reversing tube 3=2.25 * 10
3* d
2÷ f
B 2V
B-1.15d, simultaneously, L＜D-2d
1, (in the formula: L-phase-reversing tube length (m), D-cabinet depth (m), d
1Be footpath (m) in the opening of phase-reversing tube, f
B-tuned frequency, V
B-tank-volumes, d-phase-reversing tube interior diameter).The parallel axes of phase-reversing tube 3 is in the axis of loud speaker 2 but both are not on same straight line, shake behind the loud speaker 2 ripple by means of anti-phase 180 ° of the rear end face backboard of casing 1 after, discharge through phase-reversing tube 3, and with loud speaker 2 before shake sound wave with superimposed, penetrate thereby increased the total width of cloth of low frequency, make the low frequency dive of sound darker, nonlinear distortion reduces, sensitivity improves, and alerting ability promotes, and has expanded the width of replay sound field.The casing 1 of audio amplifier adopts high density, the high-grade rubber wood timber of high rigidity is made, whole box body 1 adopts the rubber wood chip to be spliced into round barrel shape broad in the middle small in ends, the casing internal volume is 3L, the vertical height of audio amplifier is 255mm, the drum mid diameter is 185mm, the diameter of two ends bore is φ 155mm, the timber sheet calculates in strict accordance with the radian of casing, and through numerically controlled lathe fine finishining, adopt import glue seamless spliced between wood chip, the design of round barrel shape audio amplifier has changed the deficiency of common audio amplifier impact resistance difference, make the mechanical property of loudspeaker box structure obtain very big lifting, eliminated the second harmonic that sound wave (especially low frequency) motivates on casing flat board and corner angle; Axis along sound box 1 is equipped with four annular metal clamping bands 6 on the arc-shaped outer surface of casing 1, clamping band 6 is tightly waled casing 1, have some bubble nails hole on the clamping band 6, clamping band 6 is closely fixing by bubble nail and casing 1, the fat shape casing 1 that the rubber wood timber of high density and high rigidity is made, hoop with 6 lock ring effect, promoted the ability of casing 1 opposing audio peak wave impact, make audio amplifier can bear bigger audio power, it is sharp-pointed to the directive property of acoustic reflections standing wave to have eliminated dull and stereotyped casing, panel resonance harm distinct issues, the influence of having avoided harmful standing wave that the cone vibration velocity of loud speaker 2 is produced, tonequality is good when big volume output, the tone sense foot.Loud speaker 2 is 4 cun foam Bian Keding cone full range formula loud speakers of D103-S8, impedance is 4 Ω, sensitivity is 45HZ-20KHZ, power output is 30W, signal to noise ratio 〉=50db, full range formula loud speaker reduce the volume of audio amplifier under the prerequisite that does not reduce audio frequency reduction degree and tone color, make simply, the width of sound field increases.The phase-reversing tube 3 of audio amplifier is the straight tube of hollow, phase-reversing tube is of a size of 30mm * 150mm, the phase-reversing tube wall thickness is 5mm, the paraphase hole 4 of the external diameter of phase-reversing tube 3 and casing 1 rear end face coincide, one end of phase-reversing tube 3 is located at paraphase hole 4 places and fixedlys connected with the rear end face of casing 1, the other end is near loud speaker and from the distance from bottom 20mm≤S≤100mm of loud speaker 2, because phase-reversing tube 3 is equivalent to an inductance element in audio amplifier, it will produce very big induction reactance when medium-high frequency, be equivalent to open circuit, so can not produce short-circuiting effect, and well-designed and back phase-reversing tube 3 to installation makes the bass part tonequality of audio frequency better, and tone color is softer and full.Also be provided with copper loudspeaker wiring post 5 on casing 1 rear end face, the surface of binding post 5 is coated with one deck proof gold coating, 5 designs of loudspeaker wiring post are above paraphase hole 4, loud speaker 2 is electrically connected with loudspeaker wiring post 5, the use of copper gold-plated loudspeaker wiring post 5, reduced the decay and the interference of audio signal, made sound purer and soft and graceful.Post the thick wave acoustical cotton of 40mm on the inwall of sound box 1 and phase-reversing tube 3 tube walls, the wave acoustical cotton increases 4 times than general dull and stereotyped sound-absorbing material acoustic absorptivity, the wave acoustical cotton has been eliminated the interference of reflected harmonics to audio frequency, makes audio frequency purer, and reproducibility is better.Sound box bracket comprises front supporting plate 7, rear carrier plate 8 and connecting rod 9, front supporting plate 7 and rear carrier plate 8 link into an integrated entity by two connecting rods 9, front and rear support plate 7,8 is trapezoidal plate, front and rear support plate 7,8 top middle portion has arc-shaped groove 10, arc-shaped groove 10 coincide with the arcuate flanks of sound box 1, front and rear support plate 7, be covered with one deck vibration absorptive material 12 on 8 the top arc-shaped groove 10, sound box 1 is placed on the arc-shaped groove 10 steadily by vibration absorptive material 12, front and rear support plate 7, have circular-arc breach 11 between 8 the footing, attractive in appearance and save material, circular-arc breach 11 makes front and rear support plate 7,8 two ends, bottom form runners 13, runners 13 contacts with bearing-surface, vibration absorptive material of laying on the support circular groove 10 12 and less support runners 13 make audio frequency reduce by the resonance that support causes, the reproducibility and the pure property of audio frequency have been guaranteed, inverted phase type Wine bucket shaped loudspeaker box of the present utility model, the flat tank surface of common audio amplifier and harmonic distortion and the resonance that corner angle bring tonequality have been eliminated, on tonequality, promoted the soft property of sound, sensitivity, increased the submerged depth of low frequency, make the nonlinear distortion of audio frequency little, sound field is broad, audio amplifier can bear bigger audio power, simultaneously, the fat formula configuration design of audio amplifier was both elegant in appearance and be rich in artistic feeling, do not reduce the result of use of audio amplifier again, reach the perfect adaptation of function and decoration, opened up the scope of application of audio amplifier.
More than explanation is not that the utility model has been done restriction; the utility model also is not limited only to giving an example of above-mentioned explanation; the variation that those skilled in the art have done in essential scope of the present utility model, retrofit, increase or replace, all should be considered as protection range of the present utility model.
Claims (9)
1. fat shape phase inverted cabinet, it is characterized in that: the sound box bracket that comprises audio amplifier body and support audio amplifier body, described audio amplifier body comprises fat shape casing (1), be located at the loud speaker (2) on casing (1) front end face and be located at the interior phase-reversing tube (3) of casing (1), the front end face of described casing (1) is provided with speaker hole, described loud speaker (2) passes described speaker hole and casing (1) front end face is fixed, have paraphase hole (4) on the rear end face of described casing (1), described paraphase hole (4) matches with described phase-reversing tube (3), one end of phase-reversing tube (3) is located at that paraphase hole (4) is located and fixedlys connected with the rear end face of casing (1), and described loud speaker (2) is electrically connected with external sound source by loudspeaker wiring post (5).
2. fat shape phase inverted cabinet according to claim 1, it is characterized in that: the material of described casing (1) is the high-grade timber of high density, high rigidity, whole box body (1) adopts the high-grade timber sheet to be spliced into round barrel shape broad in the middle small in ends, adopt import glue seamless spliced between wood chip, the side of casing (1) is provided with some ring-type clamping bands (6), described clamping band (6) matches with casing (1) size of relevant position, described clamping band (6) is provided with some bubble nails hole, and clamping band (6) is fixing by bubble nail and casing (1).
3. fat shape phase inverted cabinet according to claim 2 is characterized in that: the material of described clamping band (6) is a metal material.
4. fat shape phase inverted cabinet according to claim 1 is characterized in that: described loud speaker (2) is a full range formula foam Bian Keding cone loudspeaker.
5. fat shape phase inverted cabinet according to claim 1, it is characterized in that: described phase-reversing tube (3) is the straight tube of hollow, phase-reversing tube (3) is the high-grade timber integral manufacturing of high density and high rigidity, the paraphase hole (4) of the external diameter of described phase-reversing tube (3) and described casing (1) rear end face coincide, one end of phase-reversing tube (3) is located at that paraphase hole (4) is located and fixedlys connected with the rear end face of casing (1), the Surface Vertical of the axis of described phase-reversing tube (3) and casing (1) rear end face, the parallel axes of the axis of phase-reversing tube (3) and loud speaker (2), the axis of the axis of phase-reversing tube (3) and loud speaker (2) is not on same straight line.
6. according to claim 1 or 4 described fat shape phase inverted cabinets, it is characterized in that: described casing (1) rear end face is provided with loudspeaker wiring post (5), described loudspeaker wiring post (5) is located at the top of described paraphase hole (4), the material of described loudspeaker wiring post (5) is copper, the surface of described loudspeaker wiring post (5) is provided with Gold plated Layer, and described loud speaker (2) is electrically connected with loudspeaker wiring post (5).
7. fat shape phase inverted cabinet according to claim 1 and 2 is characterized in that: described casing (1) inwall is provided with sound-absorbing porous material, and described sound-absorbing porous material surface is provided with irregular some projectioies and shrinkage pool
8. fat shape phase inverted cabinet according to claim 1, it is characterized in that: described sound box bracket comprises front supporting plate (7), rear carrier plate (8) and connecting rod (9), described front supporting plate (7) and rear carrier plate (8) link into an integrated entity by described connecting rod (9), described front and rear support plate (7,8) be trapezoidal plate, front and rear support plate (7,8) be provided with arc-shaped groove (10) in the middle of the top, described arc-shaped groove (10) matches with the arcuate flanks of described sound box (1), described front and rear support plate (7,8) be provided with circular-arc breach (11) in the middle of the bottom, described circular-arc breach (11) is at front and rear support plate (7,8) two ends, bottom form runners (13), and described runners (13) contacts with supporting surface.
9. fat shape phase inverted cabinet according to claim 8 is characterized in that: the arc-shaped groove (10) of described front and rear support plate (7,8) is provided with one deck vibration absorptive material (12), and described audio amplifier body is placed on the sound box bracket by vibration absorptive material (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203151262U CN201577183U (en) | 2009-11-19 | 2009-11-19 | Wine barrel-shaped bass reflex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203151262U CN201577183U (en) | 2009-11-19 | 2009-11-19 | Wine barrel-shaped bass reflex |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201577183U true CN201577183U (en) | 2010-09-08 |
Family
ID=42697053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203151262U Expired - Fee Related CN201577183U (en) | 2009-11-19 | 2009-11-19 | Wine barrel-shaped bass reflex |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201577183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI513331B (en) * | 2013-02-18 | 2015-12-11 | ||
| CN110267156A (en) * | 2019-06-28 | 2019-09-20 | 百度在线网络技术（北京）有限公司 | Intelligent sound speaker |
-
2009
- 2009-11-19 CN CN2009203151262U patent/CN201577183U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI513331B (en) * | 2013-02-18 | 2015-12-11 | ||
| CN110267156A (en) * | 2019-06-28 | 2019-09-20 | 百度在线网络技术（北京）有限公司 | Intelligent sound speaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20131119 |