CN207184785U - Low frequency expands audio amplifier - Google Patents
Low frequency expands audio amplifier Download PDFInfo
- Publication number
- CN207184785U CN207184785U CN201721270373.6U CN201721270373U CN207184785U CN 207184785 U CN207184785 U CN 207184785U CN 201721270373 U CN201721270373 U CN 201721270373U CN 207184785 U CN207184785 U CN 207184785U
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- low frequency
- audio amplifier
- loudspeaker
- casing
- frequency
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Abstract
The utility model provides low frequency and expands audio amplifier, includes casing, function button area, loudspeaker, Full-frequency trumpet and the speaker net being arranged on casing, in addition to is arranged at the guide duct Air Filter of bottom half.The utility model low frequency expands audio amplifier by the way that the sound wave of loudspeaker is filtered by cavity and conduit, so that the medium, high frequency of sound equipment residual after serpentine conduit by carrying out secondary filtering, so that the tonequality of sealing it is cleaner, without noise, and, pass through the cooperation with loudspeaker, realize that the low frequency of loudspeaker is expanded to decline, solve traditional low-frequency and expand the defects of audio amplifier frequency response curve is unsmooth, low frequency is muddy.
Description
Technical field
Audio signal processing technique field is the utility model is related to, more particularly to low frequency expands audio amplifier.
Background technology
In recent years, with the development of new material, new technology, new construction and new technology, the main development of audio amplifier becomes in the world
Gesture for miniaturization and it is superior, market proposes higher requirement to truly going back original sound field and audio, has improved constantly new sound
The production technology difficulty and development cost of case, meet the small size acoustic surrounding of people's needs.
However, the scheme for being a popular road, employing limit Design that small-size sound box production is walked, materials are with full
The basic audition requirement of foot is defined, and used tweeter quality is general, and low frequency playback is drawn mainly by the effect of audio amplifier
Stretch, whole frequency response curve owes smooth, and low frequency is muddy, and high frequency is not unobstructed enough, and sound field representation is not good enough.
Therefore, it is necessary to researched and developed, to provide a kind of technology for solving above-mentioned currently available technology existing defects
Scheme so that audio amplifier sealing tonequality is totally expanded lower frequency limit and be remarkably enhanced with energy without noise, low frequency.
Utility model content
The purpose of this utility model is that providing low frequency expands audio amplifier, passes through the irregular design of box house cavity and conduit
Serpentine design, realize loudspeaker low frequency expand decline, with solve traditional low-frequency expand audio amplifier frequency response curve it is unsmooth, low
Frequently the defects of muddy.
To achieve the above object, the utility model uses following technical scheme：
Low frequency expands audio amplifier, includes casing, be arranged at function button area on casing, loudspeaker, Full-frequency trumpet and
Speaker net；Cavity and conduit are provided with the casing, the cavity and conduit are respectively symmetrically arranged at box house；The chamber
Body designs for irregular polygon；The conduit designs for serpentine.
Further, in addition to it is arranged at the guide duct Air Filter of bottom half；The function button area is arranged at casing
Upper end middle part
Further, described speaker net has two and is symmetricly set in the left and right position of casing.
Further it is low, the loudspeaker and Full-frequency trumpet have respectively two and respectively symmetrically installation by adhering in loudspeaker
Net.
Further, the cavity uses pure solid wood material.
Compared to prior art, the utility model low frequency expands audio amplifier by the way that the sound wave of loudspeaker is passed through into cavity and conduit
Filtered so that the medium, high frequency of sound equipment residual after serpentine conduit by carrying out secondary filtering so that the tonequality of sealing is more dry
Only, without noise, also, by the cooperation with loudspeaker, realize that the low frequency of loudspeaker is expanded and decline, solve traditional low-frequency expansion
The defects of audio amplifier frequency response curve is unsmooth, low frequency is muddy.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, to those skilled in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the overall diagram that the utility model low frequency expands audio amplifier.
Fig. 2 is the upward view that the utility model low frequency expands audio amplifier.
Fig. 3 is that the utility model low frequency expands sectional view of the audio amplifier along A-A directions.
Reference
1st, casing；2nd, function button area；3rd, loudspeaker；4th, Full-frequency trumpet；5th, speaker net；6th, guide duct Air Filter；7、
Cavity；8th, conduit.
Embodiment
, below will knot to enable purpose of utility model of the present utility model, feature, advantage more obvious and understandable
The accompanying drawing in the utility model embodiment is closed, the technical scheme in the embodiment of the utility model is clearly and completely described,
Obviously, the embodiments described below are only the utility model part of the embodiment, and not all embodiments.Based on this practicality
Embodiment in new, the every other embodiment that those skilled in the art is obtained, belong to the utility model protection
Scope.
Term " first ", " second " in specification and claims of the present utility model and above-mentioned accompanying drawing etc. are to be used for
Similar object is distinguished, without for describing specific order or precedence.It should be appreciated that the term so used is suitable
It can be exchanged in the case of, this is only to describe to adopt the object of same alike result in description in embodiment of the present utility model
Differentiation mode.In addition, term " comprising " and " having " and their any deformation, it is intended that cover non-exclusive bag
Contain, so that a series of process comprising units, method, system, product or equipment are not necessarily limited to those units, but may include do not have
There are other units clearly listing or for these processes, method, product or equipment inherently.
As shown in Fig. 1~2, the utility model provides low frequency and expands audio amplifier, includes casing 1, the work(being arranged on casing 1
Energy key zone 2, loudspeaker 3, Full-frequency trumpet 4 and speaker net 5, in addition to it is arranged at the guide duct Air Filter 6 of the bottom of casing 1；
The function button area 2 is arranged at the upper end middle part of casing 1, and described speaker net 5 has two and is symmetricly set in casing 1
Left and right position, the loudspeaker 3 and Full-frequency trumpet 4 have respectively two and respectively symmetrically installation by adhering in speaker net 5.
As shown in figure 3, the utility model low frequency, which is expanded in sound box 1, is provided with cavity 7 and conduit 8, the He of cavity 7
Conduit 8 is symmetrically arranged at the inside of casing 1.
Preferably, the cavity 7 designs for irregular polygon, and the conduit 8 designs for serpentine, greatly prolongs
The length and bore of conduit 8 have been grown, has added the internal volume of cavity, after the acoustics design of optimization, loudspeaker radiates low
Frequency sound wave, radiated from conduit 8, the LF-response of whole audio amplifier can be improved, expand low-frequency range so that whole audio amplifier
Low frequency get a promotion and expand, improve subjective hearing effect.
Preferably, the cavity 7 uses pure solid wood material so that the medium, high frequency sound wave of sound equipment residual obtains preferably mistake
Filter, the tonequality of sealing is more clean, without noise.
It is above-mentioned that technology contents of the present utility model are only further illustrated with embodiment, in order to reader is easier to understand,
But embodiment of the present utility model is not represented is only limitted to this, any technology extension or recreation done according to the utility model,
By protection of the present utility model.The scope of protection of the utility model is defined by claims.
Claims (5)
1. low frequency expands audio amplifier, include casing, function button area, loudspeaker, Full-frequency trumpet and the loudspeaker being arranged on casing
Net, it is characterised in that：Cavity and conduit are provided with the casing, the cavity and conduit are respectively symmetrically arranged in casing
Portion；The cavity designs for irregular polygon；The conduit designs for serpentine.
2. low frequency according to claim 1 expands audio amplifier, it is characterised in that：Also include the guide duct for being arranged at bottom half
Air Filter；The function button area is arranged at the upper end middle part of casing.
3. low frequency according to claim 1 expands audio amplifier, it is characterised in that：Described speaker net has two and is symmetrical arranged
In the left and right position of casing.
4. low frequency according to claim 1 expands audio amplifier, it is characterised in that：The loudspeaker and Full-frequency trumpet have respectively
Two and respectively symmetrically installation by adhering in speaker net.
5. low frequency according to claim 4 expands audio amplifier, it is characterised in that：The cavity uses pure solid wood material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721270373.6U CN207184785U (en) | 2017-09-29 | 2017-09-29 | Low frequency expands audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721270373.6U CN207184785U (en) | 2017-09-29 | 2017-09-29 | Low frequency expands audio amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184785U true CN207184785U (en) | 2018-04-03 |
Family
ID=61749731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721270373.6U Active CN207184785U (en) | 2017-09-29 | 2017-09-29 | Low frequency expands audio amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207184785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429988A (en) * | 2018-04-27 | 2018-08-21 | 项晓峰 | A kind of Ultrathin speaker structure |
-
2017
- 2017-09-29 CN CN201721270373.6U patent/CN207184785U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429988A (en) * | 2018-04-27 | 2018-08-21 | 项晓峰 | A kind of Ultrathin speaker structure |
| CN108429988B (en) * | 2018-04-27 | 2020-02-14 | 项晓峰 | Ultra-thin sound box structure |
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