CN207184780U - A kind of subwoofer sound with damping hush pipe - Google Patents
A kind of subwoofer sound with damping hush pipe Download PDFInfo
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- CN207184780U CN207184780U CN201721117367.7U CN201721117367U CN207184780U CN 207184780 U CN207184780 U CN 207184780U CN 201721117367 U CN201721117367 U CN 201721117367U CN 207184780 U CN207184780 U CN 207184780U
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- Prior art keywords
- hush pipe
- audio amplifier
- pipe
- phase
- chamber
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Abstract
It the utility model is related to sound equipment, especially a kind of subwoofer sound with damping hush pipe, including audio amplifier, the audio amplifier is separated into the first chamber and the second chamber by dividing plate, the embedded loudspeaker in center of the dividing plate, sounding position the second chamber of direction of the loudspeaker, the side of second chamber is provided with phase-reversing tube, the outer end connection audio amplifier side wall of the phase-reversing tube, the inner of the phase-reversing tube is communicated with hush pipe, the hush pipe is a circular glass asbestos pipe, and the overall structure of audio amplifier first uses low pass filtered waves, and advantage is that bass is purer；Then phase-reversing tube is directly connected using hush pipe so that the powerful air of impact first passes around the damping noise reduction of hush pipe in audio amplifier；Because damping noise reduction only reduces the intensity of gas shock without throughput is greatly reduced, therefore it can effectively reduce influence of the subwoofer gas shock for power amplifier circuit board and fin fixed screw.
Description
Technical field
It the utility model is related to sound equipment, especially a kind of subwoofer sound with damping hush pipe.
Background technology
Many friends, it can be seen that the audio amplifier of oneself after using the quite a while, subwoofer will send " more
It is remaining " sound, that is, " resonance voice ".
In general, two cavitys are had in subwoofer, woofer is positioned in one of cavity, and bass is raised
The air of inside is acted when sound device works so that the low-frequency minimum of loudspeaker is raised.Then by internal one
Root phase-reversing tube will be sent into another cavity after sound paraphase, and the phase-reversing tube then communicated with the external world is again by after the sound paraphase of inside
It is sent to outside casing.
Under the impact of air-flow, vibration is inevitable.And vibrate the screw that will make to fix control panel and casing
Loosen, cause occur space between panel and casing.Under the impact of air-flow, it can make to produce resonance (resonance voice between the two
One of source).Due to space, a part of windage loss (gas leak phenomenon) is also resulted in, so as to cause the intensity of bass
Decline.Now we only need to tighten screw again, carry out sealing, so that it may solve this problem.The spiral shell of casing is tightened for those
After silk, the subwoofer of resonance voice still, we just need notice to be transferred to inside subwoofer.It is well known that with control
What panel was connected is one piece of power amplifier circuit board, because the caloric value of power amplifier chips is quite big, is often installed additional in its behind during design
One piece of large-scale fin carrys out auxiliary heat dissipation, and both is fixed by screw.But the gas shock in casing is very big, has
It may loosen these fixed screws, at this moment we just should tighten them again, and at the same time the author suggests making
Fixed with glass cement, further reduce the generation of resonance.
It is conventional art to seal fixation, scope be not discussed herein.It is intended to and is reduced by improving gas shock mode
Influence of the subwoofer gas shock for power amplifier circuit board and fin fixed screw.
The content of the invention
In view of the shortcomings of the prior art, the utility model provides a kind of subwoofer for effectively reducing resonance voice.
The technical solution of the utility model is：
A kind of subwoofer sound with damping hush pipe, including audio amplifier, it is characterised in that：The audio amplifier passes through dividing plate point
It is divided into the first chamber and the second chamber, the embedded loudspeaker in center of the dividing plate, sounding position the second chamber of direction of the loudspeaker, institute
The side for stating the second chamber is provided with phase-reversing tube, the outer end connection audio amplifier side wall of the phase-reversing tube, the inner connection of the phase-reversing tube
There is hush pipe, the hush pipe is a circular glass asbestos pipe, and hush pipe one end connection phase-reversing tube other end then passes through
Glue, which is pasted, to be provided with a sound insulation plectane in audio amplifier inwall, the hush pipe hush pipe is separated into front and rear two sections, before described
Section hush pipe side wall is provided with multiple first air-vents, and horizontal on the sound insulation plectane to insert several damper tubes, the damper tube is painting
The stainless steel tube of damping-constraining coating is covered with, one end end that the damper tube is located at leading portion hush pipe is sealed and managed by plastic cement
Wall is provided with multiple second air-vents, and the back segment hush pipe is provided with blast pipe, and described blast pipe one end end face is pasted by glue
Sound insulation plectane end face, the blast pipe other end end face connect hush pipe distal end faces, and the blast pipe is close to sound insulation plectane
The side wall of one end is provided with multiple 3rd air-vents.
The audio amplifier is made of wood materials, and the gap of the audio amplifier is using glass cement filling sealing.
First intracavitary of the audio amplifier is filled into the cavity that a vertical view state is in ingot shape, the cavity by silencing cotton
Smaller one end connects loudspeaker.
The sound insulation plectane is that abrasive rubber is (specifically a kind of resistance to disclosed in Jiangyin Haida Rubber And Plastic Co., Ltd
Rubber milling, China Patent No. ZL201410476902.2), its thickness is ten to ten five centimetres.
Operation principle of the present utility model：
Using low pass filtered waves audio amplifier, only a phase-reversing tube, reduce multi-pipeline and loosen the possibility for producing noise in itself；
Phase-reversing tube is connected using hush pipe, caused air-impingement enters from the first air-vent of hush pipe first in audio amplifier, due to every
The iris action of sound plectane, air-impingement can only disperse and roundabout the second air-vent from damper tube enters damper tube, damping
Pipe coats Constraint Damping coating in itself, and air-impingement is reduced by damping vibration during air-impingement passes through damper tube
Entrained energy, so as to reduce influence of the subwoofer gas shock for power amplifier circuit board and fin fixed screw, and then
Reduce resonance voice；At the same time, hush pipe does not reduce the throughput of air disengaging excessively, therefore volume loss is little.
The beneficial effects of the utility model are：The overall structure of audio amplifier uses low pass filtered waves first, and advantage is bass ratio
It is purer；Then phase-reversing tube is directly connected using hush pipe so that the powerful air of impact first passes around hush pipe in audio amplifier
Damp noise reduction；Because damping noise reduction only reduces the intensity of gas shock without throughput is greatly reduced, therefore can effectively drop
Influence of the low subwoofer gas shock for power amplifier circuit board and fin fixed screw.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is hush pipe structural representation of the present utility model.
In figure, 1, audio amplifier；2nd, dividing plate；3rd, the first chamber；4th, the second chamber；5th, loudspeaker；6th, silencing cotton；7th, hush pipe；8th, paraphase
Pipe；71st, the first air-vent；72nd, sound insulation plectane；73rd, damper tube；74th, the second air-vent；75th, blast pipe；76th, the 3rd air-vent.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, 2, a kind of subwoofer sound with damping hush pipe, including audio amplifier 1, the audio amplifier 1 by every
Plate 2 is separated into the first chamber 3 and the second chamber 4, the embedded loudspeaker 5 in center of the dividing plate 2, the sounding position court of the loudspeaker 5
To the second chamber 4, the side of second chamber 4 is provided with phase-reversing tube 8, and the outer end connection side wall of audio amplifier 1 of the phase-reversing tube 8 is described
The inner of phase-reversing tube 8 is communicated with hush pipe 7, and the hush pipe 7 is a circular glass asbestos pipe, and described one end of hush pipe 7 connects
Connect the other end of phase-reversing tube 8 and then pasted by glue and a sound insulation plectane 72 is provided with the inwall of audio amplifier 1, the hush pipe 7 will disappear
Sound tube 7 is separated into front and rear two sections, and the side wall of leading portion hush pipe 7 is provided with multiple first air-vents 71, on the sound insulation plectane 72
It is horizontal insert several damper tubes 73, the damper tube 73 for coating Constraint Damping coating stainless steel tube, the damper tube 73
Sealed in one end end of leading portion hush pipe 7 by plastic cement and tube wall is provided with multiple second air-vents 74, the back segment hush pipe 7
Provided with blast pipe 75, the end face of sound insulation plectane 72 is pasted in one end end face of blast pipe 75 by glue, and the blast pipe 75 is another
The end face connection distal end faces of hush pipe 7 are held, side wall of the blast pipe 75 close to one end of sound insulation plectane 72 is provided with multiple the
Three air-vents 76.
The audio amplifier 1 is made of wood materials, and the gap of the audio amplifier 1 is using glass cement filling sealing.
The cavity that a vertical view state is in ingot shape is filled into by silencing cotton 6 in first chamber 3 of the audio amplifier 1, it is described
The smaller one end connection loudspeaker 5 of cavity.
The sound insulation plectane 72 is abrasive rubber, and its thickness is ten to ten five centimetres.
Simply illustrate principle of the present utility model and most preferred embodiment described in above-described embodiment and specification, do not taking off
On the premise of the spirit and scope of the utility model, the utility model also has various changes and modifications, these changes and improvements
Both fall within claimed the scope of the utility model.
Claims (4)
1. a kind of subwoofer sound with damping hush pipe, including audio amplifier, it is characterised in that：The audio amplifier is separated by dividing plate
Into the first chamber and the second chamber, the center of the dividing plate is embedded in a loudspeaker, and the sounding position of the loudspeaker is described towards the second chamber
The side of second chamber is provided with phase-reversing tube, and the outer end connection audio amplifier side wall of the phase-reversing tube, the inner of the phase-reversing tube is communicated with
Hush pipe, the hush pipe are a circular glass asbestos pipe, and hush pipe one end connection phase-reversing tube other end then passes through glue
Water, which is pasted, to be provided with a sound insulation plectane in audio amplifier inwall, the hush pipe hush pipe is separated into front and rear two sections, the leading portion
Hush pipe side wall is provided with multiple first air-vents, and horizontal on the sound insulation plectane to insert several damper tubes, the damper tube is coating
The stainless steel tube of Constraint Damping coating, one end end that the damper tube is located at leading portion hush pipe pass through plastic cement sealing and tube wall
Provided with multiple second air-vents, the back segment hush pipe is provided with blast pipe, described blast pipe one end end face by glue paste every
Sound plectane end face, the blast pipe other end end face connect hush pipe distal end faces, the blast pipe close to sound insulation plectane one
The side wall at end is provided with multiple 3rd air-vents.
2. the subwoofer sound according to claim 1 with damping hush pipe, it is characterised in that：The audio amplifier is using wood
Material is made, and the gap of the audio amplifier is using glass cement filling sealing.
3. the subwoofer sound according to claim 2 with damping hush pipe, it is characterised in that：The first of the audio amplifier
Intracavitary is filled into the cavity that a vertical view state is in ingot shape, the smaller one end connection loudspeaker of cavity by silencing cotton.
4. the subwoofer sound according to claim 3 with damping hush pipe, it is characterised in that：The sound insulation plectane is
Abrasive rubber, its thickness are ten to ten five centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721117367.7U CN207184780U (en) | 2017-09-01 | 2017-09-01 | A kind of subwoofer sound with damping hush pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721117367.7U CN207184780U (en) | 2017-09-01 | 2017-09-01 | A kind of subwoofer sound with damping hush pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184780U true CN207184780U (en) | 2018-04-03 |
Family
ID=61742483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721117367.7U Expired - Fee Related CN207184780U (en) | 2017-09-01 | 2017-09-01 | A kind of subwoofer sound with damping hush pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207184780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267156A (en) * | 2019-06-28 | 2019-09-20 | 百度在线网络技术（北京）有限公司 | Intelligent sound speaker |
-
2017
- 2017-09-01 CN CN201721117367.7U patent/CN207184780U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267156A (en) * | 2019-06-28 | 2019-09-20 | 百度在线网络技术（北京）有限公司 | Intelligent sound speaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20190901 |