CN1901752A - Speaker system - Google Patents
Speaker system Download PDFInfo
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- CN1901752A CN1901752A CN 200510085293 CN200510085293A CN1901752A CN 1901752 A CN1901752 A CN 1901752A CN 200510085293 CN200510085293 CN 200510085293 CN 200510085293 A CN200510085293 A CN 200510085293A CN 1901752 A CN1901752 A CN 1901752A
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- tone chamber
- phase
- speaker system
- reversing tube
- communicating pipe
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Abstract
This invention discloses a loudspeaker system including a sound box, at least two loudspeaker sets in the same performance and composed of one or more than one loudspeakers, each set is installed in the open-end of an independent sound chamber in the box, the chambers are in same shape and size, the adjacent chambers are run-through by a connection tube, and the structure of this invention is favorable to realizing resonance of the loudspeaker sets.
Description
Technical field
The present invention relates to the sound equipment field, especially relate to a kind of speaker system.
Background technology
It is little that the sound system industry is made continuous pursuit volume to speaker system, louder volume and high tone quality.But all there is inefficient problem in conventional loudspeakers system audio amplifier commonly used:
Closed audio amplifier-audio amplifier seals fully, the sound wave and the external world that diaphragm of loudspeaker rear side sends separate, though the sound wave of having stopped before and after the vibrating diaphragm disturbs, but because the air and the external world in the casing are isolated fully, air during speaker operation in the casing can increase damping to loud speaker, thereby casing must be done to such an extent that than the great talent low frequency replaying effect preferably can be arranged.
Anti-phase 180 ° of the part of the sound wave of phase inverted cabinet-set of speakers vibrating diaphragm rear side is sent makes it identical with the sound wave of vibrating diaphragm head-on radiation.And outside managing this part sound wave given off, improve the playback efficient of low-frequency range of the part of audio amplifier in casing.
A kind of audio amplifier that development is come out on the basis of dumbbell type audio amplifier-be inverted phase type and closed audio amplifier.Use two loud speakers in the dumbbell type sound box, the synthetic sound wave of these two loud speakers sends from their center during work.
Passive radiant type audio amplifier-operation principle and phase inverted cabinet are approximate, do not have the bullet basin of voice coil loudspeaker voice coil and magnetic circuit system to replace phase-reversing tube with one.
In a word, traditional audio amplifier fails fully to utilize efficiently the sound wave that the vibrating diaphragm rear side sends in the system.Also there is the space that casing standing wave that the sound wave that sent by the vibrating diaphragm rear side causes in the casing internal reflection etc. can be to be improved.
Summary of the invention
The purpose of this invention is to provide a kind of speaker system that can more make full use of the acoustic wave energy that the vibrating diaphragm rear side sends in the system.Its efficient speaker system more passing than passing speaker system height, its casing volume ratio is little, and it is melodious to take into account tonequality when strengthening efficient.
The technical solution used in the present invention is, a kind of speaker system, comprise sound box bodies, also comprise at least two set of speakers, described set of speakers performance is identical, form by one or more loud speaker, each set of speakers is installed in the openend of corresponding independent tone chamber in the sound box bodies, and each tone chamber's overall shape, measure-alike connects by communicating pipe between adjacent tone chamber.
The end face that described sound box bodies is installed loud speaker can have phase-reversing tube, the rear end of phase-reversing tube by paraphase communicating pipe the rear portion with each tone chamber communicate, caliber size and the equal in length of each paraphase communicating pipe, the center line of each tone chamber to the distance of phase-reversing tube center line equates.
The sidewall shape of described tone chamber is cylindrical shape or oval cylinder preferably.
The rear portion of described tone chamber is hemisphere or approximate hemisphere preferably, and the rear end of described phase-reversing tube communicated with each tone chamber's hemisphere or approximate hemispheric rear portion by paraphase communicating pipe.
Rear portion, described tone chamber also can be taper, the rear end of described phase-reversing tube by paraphase communicating pipe the rear end with each tone chamber's taper communicate.
Described speaker system is three or three when above when adopting phase-reversing tube and tone chamber's quantity, and each tone chamber is the center with the axis of phase-reversing tube preferably, evenly distributes along circumference.
The used set of speakers of the present invention is the identical set of speakers of performance.Each set of speakers is installed in the openend of corresponding independent tone chamber in the sound box bodies, each tone chamber's overall shape, measure-alike, connect by communicating pipe between adjacent tone chamber, these structures all help realizing the resonance of each set of speakers, can fill part and utilize the acoustic wave energy that the vibrating diaphragm rear side sends in the system, improve system effectiveness.Not only can improve tonequality but also can further improve the volume of system, bear advantage more high-power and the output higher volume so the present invention has again with less audio amplifier.
The present invention has phase-reversing tube as the end face that set of speakers is installed in sound box bodies, the rear end of phase-reversing tube by paraphase communicating pipe the rear portion with each tone chamber communicate, caliber size and the equal in length of each paraphase communicating pipe, the center line of each tone chamber to the distance of phase-reversing tube center line equates, then can further eliminate the cushioning effect of audio amplifier, thereby promote the output sound press and the medium and low frequency acoustic frequency response of speaker system, just can obtain low frequency and bright alt effect preferably with less set of speakers and audio amplifier.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the front view of the embodiment of the invention 1 sound box bodies.
Fig. 2 is the structural principle schematic diagram of the embodiment of the invention 1 audio amplifier.
Fig. 3 is the front view of the embodiment of the invention 2 sound box bodies.
Fig. 4 is the structural principle schematic diagram of the embodiment of the invention 2 audio amplifiers.
Fig. 5 is the structural representation of the embodiment of the invention 3 sound box bodies.
Fig. 6 is the structural representation of the embodiment of the invention 4 sound box bodies.
Fig. 7 is the structural representation of the embodiment of the invention 5 audio amplifiers.
Embodiment
In the sound box bodies 1 of Fig. 1, speaker system embodiment of the present invention 1 shown in Figure 2,2 loud speaker 3a and 3b that performance is identical have been installed, two-loudspeaker just connects by polarity.Each loud speaker is installed in the openend of corresponding independently tone chamber 12 in the sound box bodies, and the installation of loud speaker is held in the hole 11.The shape of two 12a of tone chamber, 12b, measure-alike.The sidewall shape of the 12a of tone chamber, 12b is a cylindrical shape, and rear portion, tone chamber 13 is a hemisphere.Two tone chambers are by connect mutually communicating pipe 16.The binding post of loud speaker is installed by installing hole 17, and the fabrication hole of communicating pipe 16 is with stopping up 2 shutoff.
In Fig. 3, speaker system embodiment of the present invention 2 shown in Figure 4, the end face that sound box bodies 1 is installed loudspeaker unit also has phase-reversing tube 14, the rear end of phase-reversing tube 14 by paraphase communicating pipe 15 the hemisphere rear end 13 with each tone chamber communicate.The center line of each tone chamber to the distance of phase-reversing tube 14 center lines equates.Simultaneously, two tone chambers are by connect mutually 2 communicating pipe 16.The fabrication hole of paraphase communicating pipe 15 and communicating pipe 16 is with stopping up 2 shutoff.
In speaker system embodiment of the present invention shown in Figure 53 sound box bodies 1, the sidewall shape of tone chamber 12 is a cylindrical shape.Rear portion, tone chamber 13 is taper, the rear end of phase-reversing tube 14 by paraphase communicating pipe 15 the taper rear end 13 with each tone chamber communicate.
In the embodiment of the invention shown in Figure 64 sound box bodies 1, axis with phase-reversing tube 14 is the center, hold hole and 3 tone chambers along the even installation that distributes 3 loud speakers of circumference, the center line of each tone chamber to the distance of phase-reversing tube 14 center lines equates that all the rear end of phase-reversing tube 14 communicated with each rear end, tone chamber 13 by paraphase communicating pipe 15.Each tone chamber connected with adjacent tone chamber by communicating pipe 16.
In the sound box bodies 1 of speaker system embodiment of the present invention 5 shown in Figure 7,2 groups of set of speakers that performance is identical have been installed, form by two loud speakers for every group.Each loud speaker is embedded into earlier and is installed in front panel 18, then the openend of fixed front panel oval tone chamber 12 in sound box bodies.
Below, operating principle of the present invention is described.
At first, in embodiment 1, each loud speaker polarity is connected to same electric signal source in the same manner, and loud speaker 3a and loud speaker 3b are applied in electric signal, set of speakers becomes transform electric the mechanical oscillation of vibrating diaphragm separately, and the air that promotes before and after the vibrating diaphragm forms sound wave A, B and sound wave a, b.
The sound wave of constant phase difference is by the radiation simultaneously of vibrating diaphragm front and back, sound wave A, the B spatial transmission outside audio amplifier in vibrating diaphragm front, sound wave a, the b radiation in the tone chamber at the vibrating diaphragm back side.
When vibrating diaphragm back side sound wave a, the b of biography in the tone chamber arrives rear portion 13, tone chamber, acoustic wave segment is by being radiated side neighbour's rear portion, tone chamber communicating pipe, reflex to the front end of the adjacent tone chamber of side again from rear portion, the adjacent tone chamber of side, this moment, the direction of propagation of the sound wave in the adjacent tone chamber of side was reverse with former direction.
The physical dimension of adjusting sound box bodies can change the effect to the sound wave time-delay, phase place homophase when radiative acoustic wave and side neighbour's vibrating diaphragm is met, and the direction of propagation of sound wave is identical with side neighbour's vibrating diaphragm direction of vibration.Vibration frequency, phase place, the direction of vibration that radiative acoustic wave homonymy neighbour's vibrating diaphragm is driven by electric signal is identical and produce resonance.The resonance superposition makes the vibrating diaphragm amplitude increase, thereby the vibrating diaphragm of the acoustic wave energy that effectively each diaphragm of loudspeaker rear side in the system is sent by the adjacent loud speaker of side gives off outside the sound box.
The embodiment of the invention 2 is to add phase-reversing tube 14 on the basis of the embodiment of the invention 1.Sound wave a in the tone chamber and sound wave b part are through guiding the phase-reversing tube 14 that exposes to casing paraphase communicating pipe 15 into, eliminated the cushioning effect of audio amplifier, and form identical, the synchronous sound wave C in front sound wave A, the B direction of propagation with each set of speakers vibrating diaphragm, improve the playback low frequency characteristic of audio amplifier.
The side, tone chamber of above embodiment is all adopted columnar structured, its rear end is a hemisphere, the mixing composition is whole not to have the tone chamber on plane that tone chamber's standing wave is reduced to minimum substantially, help further improving the sound press of system, so present embodiment is compared with prior art, have again and can bear more high-power and export the advantage of higher sound press.
The a plurality of set of speakers of the present invention are as being that axis is arranged along the equally distributed mode of circumference with the phase-reversing tube, just can arrange maximum set of speakers and the tone chambers of quantity in equal space.Because set of speakers and tone chamber's number are more than the speaker system of equal volume, the present invention has with smaller volume, bears more high-power, as to export higher sound press, improvement tonequality under specified sound press output situation special benefits.
Claims (7)
1. speaker system, comprise sound box bodies, it is characterized in that also comprising at least two set of speakers, described set of speakers performance is identical, form by one or more loud speaker, each set of speakers is installed in the openend of corresponding independent tone chamber in the sound box bodies, each tone chamber's overall shape, measure-alike connects by communicating pipe between adjacent tone chamber.
2. speaker system according to claim 1, it is characterized in that, the end face that sound box bodies is installed loud speaker has phase-reversing tube, the rear end of phase-reversing tube by paraphase communicating pipe the rear portion with each tone chamber communicate, caliber size and the equal in length of each paraphase communicating pipe, the center line of each tone chamber to the distance of phase-reversing tube center line equates.
3. speaker system according to claim 1 and 2 is characterized in that, the sidewall shape of described tone chamber is cylindrical shape or oval cylinder.
4. speaker system according to claim 3 is characterized in that, the rear portion of described tone chamber is hemisphere or approximate hemisphere, and the rear end of described phase-reversing tube communicated with each tone chamber's hemisphere or approximate hemispheric rear portion by paraphase communicating pipe.
5. speaker system according to claim 3 is characterized in that, rear portion, described tone chamber is taper, the rear end of described phase-reversing tube by paraphase communicating pipe the rear end with each tone chamber's taper communicate.
6. speaker system according to claim 2 is characterized in that, each tone chamber is the center with the axis of phase-reversing tube, evenly distributes along circumference.
7. speaker system according to claim 5 is characterized in that, described set of speakers is 3-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510085293 CN1901752A (en) | 2005-07-22 | 2005-07-22 | Speaker system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510085293 CN1901752A (en) | 2005-07-22 | 2005-07-22 | Speaker system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1901752A true CN1901752A (en) | 2007-01-24 |
Family
ID=37657442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510085293 Pending CN1901752A (en) | 2005-07-22 | 2005-07-22 | Speaker system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1901752A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957495A (en) * | 2014-04-30 | 2014-07-30 | 郑润柏 | Loudspeaker structure based on ring shaft phase-reversing tube application |
| CN107613426A (en) * | 2016-07-11 | 2018-01-19 | 宏碁股份有限公司 | Loudspeaker for generating mixed overtone and electronic device using same |
| CN110944273A (en) * | 2019-12-26 | 2020-03-31 | 中国华录集团有限公司 | Penetrating type phase-reversing tube and audio box |
-
2005
- 2005-07-22 CN CN 200510085293 patent/CN1901752A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957495A (en) * | 2014-04-30 | 2014-07-30 | 郑润柏 | Loudspeaker structure based on ring shaft phase-reversing tube application |
| CN107613426A (en) * | 2016-07-11 | 2018-01-19 | 宏碁股份有限公司 | Loudspeaker for generating mixed overtone and electronic device using same |
| CN110944273A (en) * | 2019-12-26 | 2020-03-31 | 中国华录集团有限公司 | Penetrating type phase-reversing tube and audio box |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |