CN103024637B - Annular phase plug of forward radiation type compression driver - Google Patents
Annular phase plug of forward radiation type compression driver Download PDFInfo
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- CN103024637B CN103024637B CN201210562068.XA CN201210562068A CN103024637B CN 103024637 B CN103024637 B CN 103024637B CN 201210562068 A CN201210562068 A CN 201210562068A CN 103024637 B CN103024637 B CN 103024637B
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- phase plug
- plug body
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Abstract
The invention relates to an annular phase plug of a forward radiation type compression driver. A third phase plug body, a second phase plug body and a first phase plug body are sequentially arranged from top to bottom inside a cavity of a loudspeaker casing, one end of a pin penetrates through a pin hole of the loudspeaker casing, a pin hole of the third phase plug body and a pin hole of second phase plug body sequentially and is arranged inside a blind hole of the first phase plug body to be closely fit with the blind hole, and gaps are arranged between the loudspeaker casing and the third phase plug body, between the third phase plug body and the second phase plug body and between the second phase plug body and the first phase plug body. The annular phase plug has the advantages that a diversion channel for acoustic wave transmission adopts the smooth flow design to reduce the acoustic energy loss during transmission; the interference effect and resonance can be restrained in a good mode; modal excitation and noises in cavities between a vibrating diaphragm and phase plug bodies can be avoided, so that the straight intermediate frequency and the high sensitivity can be obtained; and the area of the acoustic wave transmission channel adopts the approximate exponential type growth pattern, so that the good acoustic impedance can be obtained, and the high acoustoelectric conversion efficiency can be obtained.
Description
Technical field
The present invention relates to a kind of strong sound broadcasting system technologies field, refer in particular to the annular phase plug of the forward radiation formula compressed drive relating to a kind of forward radiation medium-high frequency compression driver.
Background technology
The phase plug of traditional forward radiation medium-high frequency compression driver is isolated by the sound wave in vibrating diaphragm centre position, by very long distance, sound wave is directed to aditus laryngis.Such defect one, the acoustic radiation loss of acoustic transmission channel is large.Its two, easily make the cavity between vibrating diaphragm and phase plug easily occur modal excitation effect.Its three, the phase difference that sound wave that vibrating diaphragm different parts sends produces is larger.The inconsistency of phase place likely causes cancelling out each other between phase place, affects the high frequency characteristics of driver element.Its four, sound wave incidence end to sound wave transmitting terminal between cavity easily formed resonance and standing wave.
Summary of the invention
In view of the deficiency that prior art exists, the present invention relates to and provides a kind of sound wave water conservancy diversion efficiency, the annular phase plug that improves phase characteristic, reduce the acoustical energy losses of sound wave in transmission channel, reduce modal excitation, avoid the forward radiation formula compressed drive producing standing wave and resonance that can improve transmission channel.
The present invention for achieving the above object, the technical scheme adopted is: a kind of annular phase plug of forward radiation formula compressed drive, comprise speaker housings (4), it is characterized in that: also comprise first phase plug (1), second phase plug (2), third phase plug (3), pin (5), described speaker housings (4) is cone-shaped cavity, a circle lug (4-1) is provided with along cavity upper port outer, the boss being provided with a circle hollow along cavity lower port outer rises (4-2), and on the face of speaker housings (4) cone-shaped cavity, level is provided with pin-and-hole; Described first phase plug (1) is bullet-shaped entity, and on bullet-shaped entity, level is provided with blind hole; The annular solid that described second phase plug (2), third phase plug (3) they are hollow, and on the anchor ring of annular solid, level is provided with pin-and-hole respectively; In the chamber of described speaker housings (4), be provided with third phase plug (3), second phase plug (2) and first phase plug (1) from top to bottom successively, one end of described pin (5), pin-and-hole successively through speaker housings (4), third phase plug (3), second phase plug (2) is placed in the blind hole tight fit of first phase plug (1), is equipped with gap (6) between speaker housings (4) and third phase plug (3), between third phase plug (3) and second phase plug (2), between second phase plug (2) and first phase plug (1); First phase plug (1), second phase plug (2), third phase plug (3) receive the input of sound wave, and it comprises an input face, and this input face comprises three annulars input gap (6), and input face is the circular arc spherical parallel with vibrating diaphragm face; The acoustic transmission channel arriving aditus laryngis (9) from three annulars input gap (6) adopts fluid design, the sound wave input of each transmission channel is approximately equal to the distance of sound wave output, and what arrive that the acoustic transmission channel areas of aditus laryngis (9) adopt from three annulars input gap (6) is approximate exponential type growth pattern.
[0005]feature of the present invention is, the flow-guiding channel of sonic transmissions adopts round and smooth fluid design, reduces the acoustical energy losses in transmitting procedure.And sound wave can be made consistent to the phase approximation of output from each input channel, interference effect and resonance can be suppressed preferably.According to wave equation, three annular input gap positions and area are chosen, avoid the modal excitation between vibrating diaphragm and phase plug in cavity and noise appearance, and then obtain straight intermediate frequency and higher sensitivity.Acoustic transmission channel area adopts approximate exponential type growth pattern, can obtain better acoustic impedance like this, and then obtain higher acoustic-electric conversion efficiency.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is that the present invention digs view;
Fig. 3 is top view of the present invention.
Embodiment
As shown in Figure 1, 2, 3, the annular phase plug of forward radiation formula compressed drive, comprise speaker housings 4, also comprise first phase plug 1, second phase plug 2, third phase plug 3, pin 5, speaker housings 4 is cone-shaped cavity, be provided with a circle lug 4-1 along cavity upper port outer, the boss being provided with a circle hollow along cavity lower port outer plays 4-2, and on the face of speaker housings 4 cone-shaped cavity, level is provided with pin-and-hole; First phase plug 1 is bullet-shaped entity, and on bullet-shaped entity, level is provided with blind hole; Second phase plug 2, third phase plug 3 are the annular solid of hollow, and on the anchor ring of annular solid, level is provided with pin-and-hole respectively; In the chamber of speaker housings 4, be provided with third phase plug 3, second phase plug 2 and first phase plug 1 from top to bottom successively, one end of pin 5, pin-and-hole successively through speaker housings 4, third phase plug 3, second phase plug 2 is placed in the blind hole tight fit of first phase plug 1, is equipped with gap 6 between speaker housings 4 and third phase plug 3, between third phase plug 3 and second phase plug 2, between second phase plug 2 and first phase plug 1.
First phase plug 1, second phase plug 2, third phase plug 3 receive sound wave input, it comprises an input face, this input face comprises three annular input gaps 6, and input face is the circular arc spherical parallel with vibrating diaphragm face.The position of three annuluss 6 and the determination of area are according to acoustic wave equation theory deduction out.
The design feature of acoustic transmission channel is, transmission channel adopts fluid design, and the sound wave input of each transmission channel is approximately equal to the distance of sound wave output, and each transmission channel is the design of approximate exponential type.
The sound wave entered from the gap 6 between third phase plug 3 and second phase plug 2 and between speaker housings 4 and third phase plug 3 is approximately equalised to the distance of third phase plug 3 lower position 7.From gap 6 between second phase plug 2 and first phase plug 1 and between third phase plug 3 and second phase plug 2, the sound wave that enters is approximately equalised to the distance of second phase plug 2 lower position 8.Such design can make the sound wave of different passage arrive the phase approximation at aditus laryngis place unanimously, reduces the impact of sound wave interference.
What the transmission channel area arriving aditus laryngis 9 from three annular input gaps 6 adopted is approximate exponential type growth pattern.Such design can obtain better acoustic impedance, and then obtains higher acoustic-electric conversion efficiency.
Three annular input positions in gap 6 and the design of area can eliminate the modal excitation between vibrating diaphragm and phase plug in cavity, avoid noise to occur, and then obtain straight intermediate frequency and higher sensitivity.
Claims (1)
1. the annular phase plug of a forward radiation formula compressed drive, comprise speaker housings (4), it is characterized in that: also comprise first phase plug (1), second phase plug (2), third phase plug (3), pin (5), described speaker housings (4) is cone-shaped cavity, a circle lug (4-1) is provided with along cavity upper port outer, the boss being provided with a circle hollow along cavity lower port outer rises (4-2), and on the face of speaker housings (4) cone-shaped cavity, level is provided with pin-and-hole; Described first phase plug (1) is bullet-shaped entity, and on bullet-shaped entity, level is provided with blind hole; The annular solid that described second phase plug (2), third phase plug (3) they are hollow, and on the anchor ring of annular solid, level is provided with pin-and-hole respectively; In the chamber of described speaker housings (4), be provided with third phase plug (3), second phase plug (2) and first phase plug (1) from top to bottom successively, one end of described pin (5), pin-and-hole successively through speaker housings (4), third phase plug (3), second phase plug (2) is placed in the blind hole tight fit of first phase plug (1), is equipped with gap (6) between speaker housings (4) and third phase plug (3), between third phase plug (3) and second phase plug (2), between second phase plug (2) and first phase plug (1); First phase plug (1), second phase plug (2), third phase plug (3) receive the input of sound wave, and it comprises an input face, and this input face comprises three annulars input gap (6), and input face is the circular arc spherical parallel with vibrating diaphragm face; The acoustic transmission channel arriving aditus laryngis (9) from three annulars input gap (6) adopts fluid design, the sound wave input of each transmission channel is approximately equal to the distance of sound wave output, and what arrive that the acoustic transmission channel areas of aditus laryngis (9) adopt from three annulars input gap (6) is approximate exponential type growth pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210562068.XA CN103024637B (en) | 2012-12-23 | 2012-12-23 | Annular phase plug of forward radiation type compression driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210562068.XA CN103024637B (en) | 2012-12-23 | 2012-12-23 | Annular phase plug of forward radiation type compression driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103024637A CN103024637A (en) | 2013-04-03 |
| CN103024637B true CN103024637B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210562068.XA Expired - Fee Related CN103024637B (en) | 2012-12-23 | 2012-12-23 | Annular phase plug of forward radiation type compression driver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023033953A1 (en) * | 2021-08-30 | 2023-03-09 | Klipsch Group, Inc. | Phasing plug adaptor |
| US11902738B2 (en) | 2021-08-30 | 2024-02-13 | Klipsch Group, Inc. | Phasing plug adaptor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286881B (en) * | 2017-07-21 | 2023-08-25 | 惠州迪芬尼声学科技股份有限公司 | Combined phase plug and application thereof in compression driver and loudspeaker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989004581A1 (en) * | 1987-11-12 | 1989-05-18 | Robert Michael Grunberg | Electro-acoustic transducers |
| US6026928A (en) * | 1999-04-06 | 2000-02-22 | Maharaj; Ashok A. | Apparatus and method for reduced distortion loudspeakers |
| GB2445597A (en) * | 2007-01-09 | 2008-07-16 | William Wood | Magnetostrictive compression type loudspeaker with phasing plug |
| EP2011365A1 (en) * | 2006-04-13 | 2009-01-07 | GP Acoustics (UK) Limited | Phase plug |
| US7639830B2 (en) * | 2006-03-02 | 2009-12-29 | Cogent True-To-Life Loudspeakers, Incorporated | Apparatus for acoustic loading of a diaphragm |
| CN202014364U (en) * | 2010-12-31 | 2011-10-19 | 张祥奎 | Intermediate frequency implanted phase plug used for sound amplification |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001280958A1 (en) * | 2000-07-31 | 2002-02-13 | Harman International Industries Inc. | Two-stage phasing plug system in a compression driver |
| US20080192972A1 (en) * | 2007-02-13 | 2008-08-14 | Vernon Lewallen | Phasing plug for acoustic compression drivers |
-
2012
- 2012-12-23 CN CN201210562068.XA patent/CN103024637B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989004581A1 (en) * | 1987-11-12 | 1989-05-18 | Robert Michael Grunberg | Electro-acoustic transducers |
| US6026928A (en) * | 1999-04-06 | 2000-02-22 | Maharaj; Ashok A. | Apparatus and method for reduced distortion loudspeakers |
| US7639830B2 (en) * | 2006-03-02 | 2009-12-29 | Cogent True-To-Life Loudspeakers, Incorporated | Apparatus for acoustic loading of a diaphragm |
| EP2011365A1 (en) * | 2006-04-13 | 2009-01-07 | GP Acoustics (UK) Limited | Phase plug |
| GB2445597A (en) * | 2007-01-09 | 2008-07-16 | William Wood | Magnetostrictive compression type loudspeaker with phasing plug |
| CN202014364U (en) * | 2010-12-31 | 2011-10-19 | 张祥奎 | Intermediate frequency implanted phase plug used for sound amplification |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023033953A1 (en) * | 2021-08-30 | 2023-03-09 | Klipsch Group, Inc. | Phasing plug adaptor |
| US11902738B2 (en) | 2021-08-30 | 2024-02-13 | Klipsch Group, Inc. | Phasing plug adaptor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103024637A (en) | 2013-04-03 |
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