CN102143418A - Air convection type phase reversal sound box - Google Patents
Air convection type phase reversal sound box Download PDFInfo
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- CN102143418A CN102143418A CN2011100404637A CN201110040463A CN102143418A CN 102143418 A CN102143418 A CN 102143418A CN 2011100404637 A CN2011100404637 A CN 2011100404637A CN 201110040463 A CN201110040463 A CN 201110040463A CN 102143418 A CN102143418 A CN 102143418A
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- reversing tube
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Abstract
The invention relates to the field of sounds, in particular to an air convection type phase reversal sound box which achieves a remarkable heat dissipation effect by air flowing. The air convection type phase reversal sound box is characterized in that: two cone-frustum-shaped phase reversal pipes are arranged inside a box body and installed oppositely. When a loudspeaker works, air in an internal space and air in an external space flow through the phase reversal pipes; due to the phenomenon that the air inside and outside the box body of the sound box keeps flowing in one direction, the heat dissipation speed and the heat dissipation efficiency are high, the simple structure can be realized easily and the service life of the sound box is prolonged, so the phase reversal sound box has the advantages of good heat dissipation effect through the air convection, high efficiency, high performance and low carbon.
Description
Technical field
The present invention relates to the sound equipment field, refer to a kind of cross-ventilation formula reflex cabinet that can reach remarkable radiating effect especially by air flows.
Background technology
Phase inverted cabinet generally is made up of sound box, the loudspeaker and the phase-reversing tube that are fixed on the sound box.Its notable feature communicates box house by phase-reversing tube exactly with extraneous space, that outlet that communicates with the external world is exactly a paraphase hole, and loud speaker is when work, and what vibrating diaphragm will not stop seesaws, and promotes air, makes the people hear sound; The effect of phase-reversing tube is the air with the vibration of box house, with the sound wave homophase of loudspeaker forward radiation, increases sound pressure level.
Yet the phase-reversing tube of all phase inverted cabinets employings all is the pipe of straight barrel type at present, and when audio amplifier was worked, the air of box house did not almost have pressure differential, air flows can not take place, and the mode of heat radiation can only all be to be undertaken by heat loss through conduction or heat loss through radiation mode.
Summary of the invention
For addressing the above problem, the invention provides a kind of phase-reversing tube of truncated cone, utilize air to continue to flow and reach the fast purpose of radiating rate.
For achieving the above object, the technical solution used in the present invention is: a kind of cross-ventilation formula reflex cabinet, sound box is the cuboid body, the casing front has a loudspeaker installing hole, box back surface has two paraphase holes, it is characterized in that: described paraphase hole two ends area differs in size, and described phase-reversing tube one end extends box house, an other end is fixed and is connected with the extraneous space of casing, makes the air in inner space air and extraneous space produce mobile.
Wherein, the hole area that described phase-reversing tube 2 communicates with extraneous space equals the hole area that phase-reversing tube 3 communicates with the box house space, and the hole area that phase-reversing tube 2 communicates with the box house space equals the hole area that phase-reversing tube 3 communicates with extraneous space.
Wherein, the hole area that communicates with extraneous space of described phase-reversing tube 2 is more than the twice of the hole area that communicates with extraneous space of phase-reversing tube 3.
Wherein, described phase-reversing tube is installed on sound box inside.
Beneficial effect of the present invention is: because the technical scheme that invention is adopted is a kind of special phase-reversing tube, sound box is the cuboid body, the casing front has a loudspeaker installing hole, box back surface has two paraphase holes, the area of described two paraphase holes differs in size, make the air in inner space air and extraneous space produce mobile, what the present invention adopted is the phase-reversing tube of truncated cone-shaped, by utilizing the pressure that the vibrating diaphragm vibration produces in the speaker operation process to produce pressure differential through the phase-reversing tube that 2 aperture areas do not wait, make the extraneous effect that reaches heat radiation with lasting the flowing of air generation of inside of audio amplifier, the fast efficient height of radiating rate, improved the useful life of audio amplifier, phase inverted cabinet has been led to brand-new passing through new era that cross-ventilation reaches the efficient high energy of great heat radiation effect.
Description of drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is the present invention's A-A sectional view in Fig. 2.
Fig. 4 is the present invention's B-B sectional view in Fig. 2.
Fig. 5 is a rearview of the present invention.
Drawing reference numeral explanation: 1-casing; The 2-phase-reversing tube; The 3-phase-reversing tube; 4-loudspeaker installing hole; 5-external terminal plate hole.
Embodiment
Below, in conjunction with the accompanying drawings, introduce the specific embodiment of the present invention.
Shown in Fig. 1-5, cross-ventilation formula reflex cabinet, sound box 1 is the cuboid body, can have loudspeaker installing hole 4 in casing 1 positive or any one side, casing 1 back side has two paraphase holes, described loudspeaker installing hole 4 area sizes cover the part of two phase-reversing tubes respectively, locate as about 1/3; The area in hole, described two phase-reversing tube two differs in size, the hole area that phase-reversing tube 2 communicates with extraneous space equals the hole area that phase-reversing tube 3 communicates with casing 1 inner space, the hole area that phase-reversing tube 2 communicates with casing 1 inner space equals the hole area that phase-reversing tube 3 communicates with extraneous space, phase-reversing tube 2 does not limit to an extraneous end diameter D=85mm(who communicates), an end diameter D=60mm(who communicates with inside does not limit to); Phase-reversing tube 3 does not limit to an extraneous end diameter D=60mm(who communicates), an end diameter D=85mm(who communicates with inside does not limit to); Described phase-reversing tube one end extends in casing 1 inside, and an other end is fixing by paraphase hole and casing 1; The hole area that phase-reversing tube 2 communicates with extraneous space is more than the twice of the hole area that communicates with extraneous space of phase-reversing tube 3, makes the air in inner space air and extraneous space produce convection current; There is certain distance an end and front panel inside that described phase-reversing tube is connected with the inner space; Audio amplifier is provided with the hole 5 of external connection end daughter board.
Draw from above embodiment, the stomidium area that phase-reversing tube 2 communicates with the external world is more than or equal to the twice of phase-reversing tube 3 with the inner stomidium area that communicates, and when audio amplifier was worked, casing 1 inner with extraneous air can take place flow phenomenon.
Check the present invention takes place inner as follows to the mode of flow phenomenon with outside air: stick paper slip at first respectively on the hole of two phase-reversing tubes and extraneous spatial communication, when starting the work of audio amplifier low frequency, vibrating diaphragm generation porpoise, casing 1 inner with extraneous air produces pressure differential, forces casing 1 interior air to take place to flow; When vibrating diaphragm vibrates toward casing 1 internal direction, air in the casing 1 is pressed inward, air will be moving toward extraneous spatial flow by phase-reversing tube, because the area in the hole of phase-reversing tube and internal communication varies in size, the pressure that is produced is also different, the moving air of the phase guide tube that hole area is big in the past can be than little many of hole area, the space is moving toward extraneous spatial flow internally so greater than the phase-reversing tube with extraneous spatial communication hole area air can take place with inner space intercommunicating pore area, so the paper that is attached on phase-reversing tube 2 holes has the phenomenon of being blown outward; When vibrating diaphragm vibrates toward casing 1 extraneous direction, the past external pressure of the air outside the casing 1, air will be moving toward extraneous spatial flow by phase-reversing tube, because the area in the hole of phase-reversing tube and internal communication varies in size, the pressure that is produced is also different, the moving air of the conduit that hole area is big in the past can be than little many of hole area, flow from extraneous space toward the inner space so greater than phase-reversing tube air can take place, so the paper that is attached on phase-reversing tube 3 holes has the phenomenon of being adsorbed inward with inner space intercommunicating pore area with extraneous spatial communication hole area; And vibrating diaphragm is in continuous porpoise, so air is in continuous convection current, so 2 continuous being blown and are adsorbed of paper, can illustrate that cross-ventilation formula reflex cabinet of the present invention is to produce the cross-ventilation phenomenon, and inner with the extraneous air of casing 1 convection current constantly takes place is to reach a kind of better heat radiating effect; The method of check can change paper slip into smog, and smog can take place to advance from a small size hole, during from phenomenon that the large-area hole of another one goes out.Can illustrate that the present invention can realize that casing 1 inner with extraneous air takes place can reach better heat radiating effect to flow phenomenon.
In sum, cross-ventilation formula loudspeaker box structure of the present invention is because the use of the phase-reversing tube of truncated cone, audio amplifier can produce significantly inner when low frequency operation and outside air takes place flow phenomenon, be issued to a kind of good radiating effect that produces because of cross-ventilation in the prerequisite that does not influence tonequality, not only radiating rate is fast, and can improve the useful life of audio amplifier.
The above only is preferred embodiment of the present invention, is not that technical scope of the present invention is imposed any restrictions.The technical staff of the industry, under the inspiration of the technical program, can make some distortion and revise, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention above any modification, equivalent variations and modification that embodiment did.
Claims (4)
1. cross-ventilation formula reflex cabinet, sound box is the cuboid body, the casing front has a loudspeaker installing hole, box back surface has two paraphase holes, it is characterized in that: described paraphase hole two ends area differs in size, described phase-reversing tube one end extends box house, and an other end is fixed and is connected with the extraneous space of casing, makes the air in inner space air and extraneous space produce mobile.
2. cross-ventilation formula reflex cabinet according to claim 1, it is characterized in that: the hole area that described phase-reversing tube 2 communicates with extraneous space equals the hole area that phase-reversing tube 3 communicates with the box house space, and the hole area that phase-reversing tube 2 communicates with the box house space equals the hole area that phase-reversing tube 3 communicates with extraneous space.
3. cross-ventilation formula reflex cabinet according to claim 1 and 2 is characterized in that: the hole area that described phase-reversing tube 2 communicates with extraneous space is more than the twice of the hole area that communicates with extraneous space of phase-reversing tube 3.
4. cross-ventilation formula reflex cabinet according to claim 1 and 2, it is characterized in that: described phase-reversing tube is installed on sound box inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110040463.7A CN102143418B (en) | 2011-02-18 | 2011-02-18 | Air convection type phase reversal sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110040463.7A CN102143418B (en) | 2011-02-18 | 2011-02-18 | Air convection type phase reversal sound box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102143418A true CN102143418A (en) | 2011-08-03 |
| CN102143418B CN102143418B (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110040463.7A Expired - Fee Related CN102143418B (en) | 2011-02-18 | 2011-02-18 | Air convection type phase reversal sound box |
Country Status (1)
| Country | Link |
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| CN (1) | CN102143418B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686483A (en) * | 2012-09-20 | 2014-03-26 | 深圳市得辉达科技有限公司 | Convection type phase-inverted type sound box |
| CN106918985A (en) * | 2017-04-17 | 2017-07-04 | 苏州佳世达光电有限公司 | Projection arrangement |
| CN112672250A (en) * | 2020-12-24 | 2021-04-16 | 美特科技(苏州)有限公司 | Phase inversion tube and phase inversion type sound box using same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0612194A1 (en) * | 1993-02-19 | 1994-08-24 | Sony Corporation | Speaker system |
| US5497428A (en) * | 1994-11-01 | 1996-03-05 | Rojas; Omar E. | Self-cooled magnetic structure for loudspeakers |
| CN2301821Y (en) * | 1996-10-03 | 1998-12-23 | 何东升 | Balanced phase reversal second loudspeaker box |
| CN2521857Y (en) * | 2001-10-09 | 2002-11-20 | 王兴旺 | Phase-reversing tube type acoustics |
| CN1617629A (en) * | 2003-10-31 | 2005-05-18 | 伯斯有限公司 | Porting |
| CN1674717A (en) * | 2004-03-23 | 2005-09-28 | 索尼株式会社 | Electronic apparatus having speaker unit incorporated therein |
-
2011
- 2011-02-18 CN CN201110040463.7A patent/CN102143418B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0612194A1 (en) * | 1993-02-19 | 1994-08-24 | Sony Corporation | Speaker system |
| US5497428A (en) * | 1994-11-01 | 1996-03-05 | Rojas; Omar E. | Self-cooled magnetic structure for loudspeakers |
| CN2301821Y (en) * | 1996-10-03 | 1998-12-23 | 何东升 | Balanced phase reversal second loudspeaker box |
| CN2521857Y (en) * | 2001-10-09 | 2002-11-20 | 王兴旺 | Phase-reversing tube type acoustics |
| CN1617629A (en) * | 2003-10-31 | 2005-05-18 | 伯斯有限公司 | Porting |
| CN1674717A (en) * | 2004-03-23 | 2005-09-28 | 索尼株式会社 | Electronic apparatus having speaker unit incorporated therein |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686483A (en) * | 2012-09-20 | 2014-03-26 | 深圳市得辉达科技有限公司 | Convection type phase-inverted type sound box |
| CN106918985A (en) * | 2017-04-17 | 2017-07-04 | 苏州佳世达光电有限公司 | Projection arrangement |
| CN112672250A (en) * | 2020-12-24 | 2021-04-16 | 美特科技(苏州)有限公司 | Phase inversion tube and phase inversion type sound box using same |
| CN112672250B (en) * | 2020-12-24 | 2022-05-20 | 美特科技(苏州)有限公司 | Phase inversion tube and phase inversion type sound box using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102143418B (en) | 2014-11-05 |
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Granted publication date: 20141105 Termination date: 20200218 |