CN103024637A - 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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- CN103024637A CN103024637A CN201210562068XA CN201210562068A CN103024637A CN 103024637 A CN103024637 A CN 103024637A CN 201210562068X A CN201210562068X A CN 201210562068XA CN 201210562068 A CN201210562068 A CN 201210562068A CN 103024637 A CN103024637 A CN 103024637A
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- phase plug
- phase
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- plug body
- pin
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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 broadcast system technical field, refer in particular to the annular phase plug of the forward radiation formula compressed drive that relates 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 that the sound wave in vibrating diaphragm centre position is isolated, and by very long distance sound wave is directed to aditus laryngis.Such defective one, the acoustic radiation loss of acoustic transmission channel is large.Its two, easily make the cavity between vibrating diaphragm and the phase plug be prone to the mode excitation effect.Its three, the phase difference that sound wave that the vibrating diaphragm different parts sends produces is larger.The inconsistency of phase place might cause cancelling out each other between the phase place, affects the high frequency characteristics of driver element.Its four, easily form resonance and standing wave at the incident end of sound wave to the cavity between the transmitting terminal of sound wave.
Summary of the invention
In view of the deficiency that prior art exists, the present invention relates to provides a kind of sound wave water conservancy diversion efficient that can improve transmission channel, improve phase characteristic, reduce the acoustical energy losses of sound wave in transmission channel, reduce the mode excitation, avoid producing the annular phase plug of the forward radiation formula compressed drive of standing wave and resonance.
The present invention for achieving the above object, the technical scheme that adopts is: a kind of annular phase plug of forward radiation formula compressed drive, comprise speaker housings, it is characterized in that: also comprise the first phase plug, the second phase plug, third phase position plug, pin, described speaker housings is cone-shaped cavity, be provided with a circle lug along cavity upper port outer, the boss that is provided with a circle hollow along cavity lower port outer rises, and level is provided with pin-and-hole on the face of speaker housings cone-shaped cavity; Described the first phase plug is the bullet-shaped entity, and level is provided with blind hole on the bullet-shaped entity; Described the second phase plug, third phase position plug are the annular solid of hollow, and level is provided with pin-and-hole respectively on the anchor ring of annular solid; In the chamber of described speaker housings, be provided with successively from top to bottom third phase position plug, the second phase plug and the first phase plug, one end of described pin, the pin-and-hole that passes successively speaker housings, third phase position plug, the second phase plug places the blind hole tight fit of the first phase plug, between speaker housings and the third phase position plug, between third phase position plug and the second phase plug, be equipped with the slit between the second phase plug and the first phase plug.
Characteristics of the present invention are that the flow-guiding channel of sonic transmissions adopts round and smooth fluid design, reduces the acoustical energy losses in transmission course.And can make the phase approximation of sound wave from each input channel to output consistent, can suppress preferably interference effect and resonance.According to wave equation three annular input gap positions and area are chosen, avoided the excitation of the mode in the cavity and noise appearance between vibrating diaphragm and the phase plug, and then obtained straight intermediate frequency and higher sensitivity.The 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.
Description of drawings
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 the first phase plug 1, the second phase plug 2, third phase position 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 that is provided with a circle hollow along cavity lower port outer plays 4-2, and level is provided with pin-and-hole on the face of speaker housings 4 cone-shaped cavities; The first phase plug 1 is the bullet-shaped entity, and level is provided with blind hole on the bullet-shaped entity; The second phase plug 2, third phase position plug 3 are the annular solid of hollow, and level is provided with pin-and-hole respectively on the anchor ring of annular solid; In the chamber of speaker housings 4, be provided with successively from top to bottom third phase position plug the 3, second phase plug 2 and the first phase plug 1, one end of pin 5, the pin-and-hole that passes successively speaker housings 4, third phase position plug the 3, second phase plug 2 places the blind hole tight fit of the first phase plug 1, between speaker housings 4 and the third phase position plug 3, between plug the 3 and second phase plug 2 of third phase position, be equipped with slit 6 between the second phase plug 2 and the first phase plug 1.
The first phase plug 1, the second phase plug 2, third phase position plug 3 receive sound waves input, it comprises an input face, this input face comprises three annular input slits 6, input face is the circular arc spherical parallel with the vibrating diaphragm face.The determining of the position of three annuluss 6 and area derives out according to the acoustic wave equation theory.
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 that approximate exponential type designs.
The sound wave that enters between plug the 3 and second phase plug 2 of third phase position and the slit 6 between speaker housings 4 and the third phase position plug 3 is filled in 3 lower positions 7 to the third phase position distance is approximately equalised.The sound wave that fill in slit 6 between the 3 and second phase plug 2 between the second phase plug 2 and the first phase plug 1 and third phase position, enters is approximately equalised to the distance of the second phase plug 2 lower positions 8.Can to make the sound wave of different passages arrive the phase approximation at aditus laryngis place consistent in design like this, reduces the impact of sound wave interference.
What the transmission channel area that arrives aditus laryngis 9 from three annular input slits 6 adopted is approximate exponential type growth pattern.Design can obtain better acoustic impedance like this, and then obtains higher acoustic-electric conversion efficiency.
The position in three annular input slits 6 and the design of area can be eliminated the excitation of the mode in the cavity between vibrating diaphragm and the phase plug, 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 the first phase plug (1), the second phase plug (2), third phase position plug (3), pin (5), described speaker housings (4) is cone-shaped cavity, be provided with a circle lug (4-1) along cavity upper port outer, the boss that is provided with a circle hollow along cavity lower port outer plays (4-2), and level is provided with pin-and-hole on the face of speaker housings (4) cone-shaped cavity; Described the first phase plug (1) is the bullet-shaped entity, and level is provided with blind hole on the bullet-shaped entity; Described the second phase plug (2), third phase position plug (3) are the annular solid of hollow, and level is provided with pin-and-hole respectively on the anchor ring of annular solid; In the chamber of described speaker housings (4), be provided with successively from top to bottom third phase position plug (3), the second phase plug (2) and the first phase plug (1), one end of described pin (5), the pin-and-hole that passes successively speaker housings (4), third phase position plug (3), the second phase plug (2) places the blind hole tight fit of the first phase plug (1), between speaker housings (4) and the third phase position plug (3), the third phase position fills between (3) and the second phase plug (2), be equipped with slit (6) between the second phase plug (2) and the first phase plug (1).
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 true CN103024637A (en) | 2013-04-03 |
| CN103024637B CN103024637B (en) | 2015-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210562068.XA Expired - Fee Related CN103024637B (en) | 2012-12-23 | 2012-12-23 | Annular phase plug of forward radiation type compression driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103024637B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286881A (en) * | 2017-07-21 | 2019-01-29 | 惠州超声音响有限公司 | It combined type phase plug and its applies in compressed drive and loudspeaker |
Families Citing this family (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 |
Citations (8)
| 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 |
| US20020021815A1 (en) * | 2000-07-31 | 2002-02-21 | Harman International Industries Incorporated | Two-stage phasing plug system in a compression driver |
| GB2445597A (en) * | 2007-01-09 | 2008-07-16 | William Wood | Magnetostrictive compression type loudspeaker with phasing plug |
| US20080192972A1 (en) * | 2007-02-13 | 2008-08-14 | Vernon Lewallen | Phasing plug for acoustic compression drivers |
| 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 |
-
2012
- 2012-12-23 CN CN201210562068.XA patent/CN103024637B/en not_active Expired - Fee Related
Patent Citations (8)
| 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 |
| US20020021815A1 (en) * | 2000-07-31 | 2002-02-21 | Harman International Industries Incorporated | Two-stage phasing plug system in a compression driver |
| 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 |
| US20080192972A1 (en) * | 2007-02-13 | 2008-08-14 | Vernon Lewallen | Phasing plug for acoustic compression drivers |
| 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 |
|---|---|---|---|---|
| CN109286881A (en) * | 2017-07-21 | 2019-01-29 | 惠州超声音响有限公司 | It combined type phase plug and its applies in compressed drive and loudspeaker |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103024637B (en) | 2015-05-13 |
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Granted publication date: 20150513 Termination date: 20151223 |
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| EXPY | Termination of patent right or utility model |