CN206323546U - A kind of audio amplifier for reducing noise combined type phase-reversing tube - Google Patents
A kind of audio amplifier for reducing noise combined type phase-reversing tube Download PDFInfo
- Publication number
- CN206323546U CN206323546U CN201720027273.4U CN201720027273U CN206323546U CN 206323546 U CN206323546 U CN 206323546U CN 201720027273 U CN201720027273 U CN 201720027273U CN 206323546 U CN206323546 U CN 206323546U
- Authority
- CN
- China
- Prior art keywords
- phase
- reversing tube
- mounting bracket
- audio amplifier
- combined type
- Prior art date
- 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
Links
Abstract
The utility model discloses a kind of audio amplifier for reducing noise combined type phase-reversing tube, including mounting bracket, some installation through-holes are provided with the mounting bracket, and mounting bracket is provided with the phase-reversing tube that some diameters and length are differed by installation through-hole, the phase-reversing tube includes body, and the inwall of body is provided with helicla flute, and the right-hand member of phase-reversing tube is integrally formed with import extension tube, the different phase-reversing tube of some paraphase frequencies can be combined installation by the combined type guide duct device of the utility model design by mounting bracket, and be allocated using lid according to actually used demand, and helicla flute and groove are provided with phase-reversing tube, it can effectively eliminate because of the noise that windage is produced, the import extension tube and export expansion pipe at phase-reversing tube two ends effectively can facilitate air flow using internal cambered surface, reduce gas current friction, reduce noise, therefore the device has very high practical value.
Description
Technical field
The utility model is related to sound box inverted tube design field, specially a kind of audio amplifier combination for reducing noise
Formula phase-reversing tube.
Background technology
The diaphragm of loudspeaker can produce the acoustic irradiation of two opposite in phase when vibrating before and after audio amplifier, and closed audio amplifier is general
The sound wave at rear is isolated from the outside, but because the electro-acoustic conversion efficiency of audio amplifier is natively low, not only can be further empty after isolation
The weak sound intensity and material to audio amplifier has higher requirement, therefore part audio amplifier can install phase-reversing tube by paraphase hole, by audio amplifier
Released after internal acoustic phase conversion, so that effectively improve speaker effect and reduce audio amplifier volume, but phase-reversing tube is in reality
More problem can be produced when using, the caliber and length of phase-reversing tube first can influence paraphase frequency range, install single phase-reversing tube
It is difficult to meet the demand of combined type audio amplifier, secondly guide pipe inwall meeting and windage when actually used, generation noise, if
Invention one kind can eliminate noise, and the new inverting means of suitable paraphase effect can be selected just to can solve the problem that as needed
Problems, a kind of audio amplifier for reducing noise combined type phase-reversing tube is we provided for this.
Utility model content
The purpose of this utility model is to provide a kind of audio amplifier for reducing noise combined type phase-reversing tube, above-mentioned to solve
The problem of being proposed in background technology.
To achieve the above object, the utility model provides following technical scheme：A kind of audio amplifier combination for reducing noise
Some installation through-holes are provided with formula phase-reversing tube, including mounting bracket, the mounting bracket, and mounting bracket is provided with by installation through-hole
The phase-reversing tube that some diameters and length are differed, the phase-reversing tube includes body, and the inwall of body is provided with helicla flute, and
The right-hand member of phase-reversing tube is exported integrally formed with import extension tube, the left end of the phase-reversing tube integrally formed with export expansion pipe
The inner wall even distribution of extension tube is fluted, and the mounting bracket is provided with left end integrally formed with connection side, and the left end of mounting bracket
Cover body, the right-hand member of the cover body is raised integrally formed with the clamping matched with mounting bracket, is provided with and expands with outlet on the cover body
The through hole of pipe matching is opened up, and through hole is spirally connected by screw thread and is provided with lid, integrally formed with the first knob on the lid, and cover
The center of body is integrally formed with the second knob.
It is preferred that, it is provided with lightening grooves on the mounting bracket.
It is preferred that, the acoustical cotton for being internally provided with voidage 40%-65% of the body.
It is preferred that, the lid is serum cap.
Compared with prior art, the beneficial effects of the utility model are：The combined type guide pipe dress of the utility model design
Installation can be combined by mounting bracket by the different phase-reversing tube of some paraphase frequencies by putting, and using lid according to actually used
Demand be allocated, and helicla flute and groove are provided with phase-reversing tube, can effectively eliminate what is produced by windage
Noise, the import extension tube and export expansion pipe at phase-reversing tube two ends effectively can facilitate air flow using internal cambered surface, reduce
Gas current friction, reduces noise, therefore the device has very high practical value.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the sectional view of the utility model structure；
Fig. 3 is the utility model phase-reversing tube sectional view.
In figure：1 mounting bracket, 2 cover bodies, 3 lids, 4 first knobs, 5 second knobs, 6 screw threads, 7 through holes, 8 phase-reversing tubes, 801
Export expansion pipe, 802 grooves, 803 helicla flutes, 804 bodys, 805 import extension tubes, 9 lightening grooves, 10 connection sides, 11 clampings are convex
Rise.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：
Some peaces are provided with a kind of audio amplifier for reducing noise combined type phase-reversing tube, including mounting bracket 1, mounting bracket 1
Through hole is filled, and mounting bracket 1 is provided with the phase-reversing tube 8 that some diameters and length are differed by installation through-hole, phase-reversing tube 8 includes
Body 804, and the inwall of body 804 is provided with helicla flute 803, and phase-reversing tube 8 right-hand member integrally formed with import extension tube
805, the left end of phase-reversing tube 8 is integrally formed with export expansion pipe 801, and the inner wall even distribution fluted 802 of export expansion pipe 801,
Mounting bracket 1 is in left end integrally formed with connection side 10, and the left end of mounting bracket 1 is provided with cover body 2, the right-hand member one of cover body 2 into
Type has the through hole 7 for being provided with and being matched with export expansion pipe 801 on the clamping projection 11 matched with mounting bracket 1, cover body 2, and through hole 7
Be spirally connected by screw thread 6 and lid 3 be installed, integrally formed with the first knob 4 on lid 3, and cover body 2 center integrally formed with
Lightening grooves 9, the acoustical cotton for being internally provided with voidage 40%-65% of body 804, lid are provided with second knob 5, mounting bracket 1
Body 3 is serum cap.
The different phase-reversing tube 8 of some paraphase frequencies can be combined installation by the present apparatus by mounting bracket 1, and utilize lid
Body 3 is allocated according to actually used demand, and helicla flute 803 and groove 802 are provided with phase-reversing tube 8, can be effective
The noise that is produced by windage of elimination, the import extension tube 805 and export expansion pipe 801 at the two ends of phase-reversing tube 8 can be effective
Facilitate air flow using internal cambered surface, reduce gas current friction, reduce noise, therefore the device has very high practical value.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of audio amplifier for reducing noise combined type phase-reversing tube, it is characterised in that：Including mounting bracket（1）, the mounting bracket
（1）Inside it is provided with some installation through-holes, and mounting bracket（1）Some diameters are provided with by installation through-hole and length is differed
Phase-reversing tube（8）, the phase-reversing tube（8）Including body（804）, and body（804）Inwall be provided with helicla flute（803）, and fall
Xiang Guan（8）Right-hand member integrally formed with import extension tube（805）, the phase-reversing tube（8）Left end integrally formed with export expansion
Pipe（801）, and export expansion pipe（801）Inner wall even distribution it is fluted（802）, the mounting bracket（1）Left end integrally formed with
Connect side（10）, and mounting bracket（1）Left end be provided with cover body（2）, the cover body（2）Right-hand member integrally formed with mounting bracket
（1）The clamping of matching is raised（11）, the cover body（2）On be provided with and export expansion pipe（801）The through hole of matching（7）, and it is logical
Hole（7）Pass through screw thread（6）It is spirally connected and lid is installed（3）, the lid（3）On integrally formed with the first knob（4）, and cover body
（2）Center integrally formed with the second knob（5）.
2. a kind of audio amplifier for reducing noise combined type phase-reversing tube according to claim 1, it is characterised in that：The peace
Shelve（1）On be provided with lightening grooves（9）.
3. a kind of audio amplifier for reducing noise combined type phase-reversing tube according to claim 1, it is characterised in that：The pipe
Body（804）The acoustical cotton for being internally provided with voidage 40%-65%.
4. a kind of audio amplifier for reducing noise combined type phase-reversing tube according to claim 1, it is characterised in that：The lid
Body（3）For serum cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720027273.4U CN206323546U (en) | 2017-01-11 | 2017-01-11 | A kind of audio amplifier for reducing noise combined type phase-reversing tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720027273.4U CN206323546U (en) | 2017-01-11 | 2017-01-11 | A kind of audio amplifier for reducing noise combined type phase-reversing tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206323546U true CN206323546U (en) | 2017-07-11 |
Family
ID=59261994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720027273.4U Expired - Fee Related CN206323546U (en) | 2017-01-11 | 2017-01-11 | A kind of audio amplifier for reducing noise combined type phase-reversing tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206323546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110809206A (en) * | 2019-09-27 | 2020-02-18 | 深圳市火乐科技发展有限公司 | Phase inversion type sound box and micro projector |
-
2017
- 2017-01-11 CN CN201720027273.4U patent/CN206323546U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110809206A (en) * | 2019-09-27 | 2020-02-18 | 深圳市火乐科技发展有限公司 | Phase inversion type sound box and micro projector |
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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: 20170711 Termination date: 20190111 |