CN2824484Y - Loudspeaker system - Google Patents
Loudspeaker system Download PDFInfo
- Publication number
- CN2824484Y CN2824484Y CN 200520114323 CN200520114323U CN2824484Y CN 2824484 Y CN2824484 Y CN 2824484Y CN 200520114323 CN200520114323 CN 200520114323 CN 200520114323 U CN200520114323 U CN 200520114323U CN 2824484 Y CN2824484 Y CN 2824484Y
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- CN
- China
- Prior art keywords
- tone chamber
- speakers
- phase
- communicating pipe
- reversing tube
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of speaker system, comprise sound box bodies, also comprise at least two set of speakers, described set of speakers performance is identical, is made up of 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.Structure of the present utility model helps 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, improved 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 utility model has with less audio amplifier.
Description
Technical field
The utility model relates to the sound equipment field, especially relates 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.
The utility model content
The purpose of this utility model provides 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 adopted in the utility model 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 utility model 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 utility model has again with less audio amplifier.
The utility model 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
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the front view of the utility model embodiment 1 sound box bodies.
Fig. 2 is the structural principle schematic diagram of the utility model embodiment 1 audio amplifier.
Fig. 3 is the front view of the utility model embodiment 2 sound box bodies.
Fig. 4 is the structural principle schematic diagram of the utility model embodiment 2 audio amplifiers.
Fig. 5 is the structural representation of the utility model embodiment 3 sound box bodies.
Fig. 6 is the structural representation of the utility model embodiment 4 sound box bodies.
Fig. 7 is the structural representation of the utility model embodiment 5 audio amplifiers.
Embodiment
In the sound box bodies 1 of Fig. 1, the utility model speaker system embodiment 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, the utility model speaker system embodiment 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 the utility model speaker system embodiment 3 sound box bodies 1 shown in Figure 5, 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 utility model embodiment 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 the utility model speaker system embodiment 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 utility model 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 utility model embodiment 2 adds phase-reversing tube 14 on the basis of the utility model embodiment 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 utility model 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 more than the speaker system of equal volume, the utlity model has with smaller volume, bear 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 200520114323 CN2824484Y (en) | 2005-07-22 | 2005-07-22 | Loudspeaker system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520114323 CN2824484Y (en) | 2005-07-22 | 2005-07-22 | Loudspeaker system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2824484Y true CN2824484Y (en) | 2006-10-04 |
Family
ID=37033602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520114323 Expired - Fee Related CN2824484Y (en) | 2005-07-22 | 2005-07-22 | Loudspeaker system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2824484Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110022509A (en) * | 2017-12-25 | 2019-07-16 | 雅马哈株式会社 | Loudspeaker structure |
-
2005
- 2005-07-22 CN CN 200520114323 patent/CN2824484Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110022509A (en) * | 2017-12-25 | 2019-07-16 | 雅马哈株式会社 | Loudspeaker structure |
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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: 20061004 Termination date: 20100722 |