CN202276437U - Sound box - Google Patents
Sound box Download PDFInfo
- Publication number
- CN202276437U CN202276437U CN2011203999404U CN201120399940U CN202276437U CN 202276437 U CN202276437 U CN 202276437U CN 2011203999404 U CN2011203999404 U CN 2011203999404U CN 201120399940 U CN201120399940 U CN 201120399940U CN 202276437 U CN202276437 U CN 202276437U
- Authority
- CN
- China
- Prior art keywords
- basin
- casing
- box body
- side plate
- audio amplifier
- 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
- 238000005266 casting Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The embodiment of the utility model discloses a sound box, comprising a box body, and a loudspeaker and an elastic basin both arranged on the box body, wherein the box body, the loudspeaker and the elastic basin form a sealed box, the elastic basin is an arc concave telescoping diaphragm, the side plates and the top plate of the box body are seamlessly connected, and the side plates and the bottom plate of the box body are also seamlessly connected. The sound box, through constructing the seamlessly-connected sealed box, can enable air not to discharge, thereby not generating an air current sound; when the tapered basin of the loudspeaker vibrates, the air pressure inside the box body changes with the vibration to drive the elastic basin to correspondingly vibrate; and meanwhile, the acoustic resistance inside the box body is relatively increased, the vibration amplitude of the tapered basin of the loudspeaker is reduced, the resonance frequency is lowered, and thereby the lower limit of the low frequency extra bass play is lowered.
Description
Technical field
The utility model relates to electronic device field, is specifically related to a kind of audio amplifier.
Background technology
Present audio amplifier mainly is divided into closed audio amplifier and phase inverted cabinet two big classes.Advantages such as getting up the whole box body chalk is exactly closed audio amplifier, and it has simple in structure, and the low-frequency distortion degree is little during playback, and damping is big, but it has just stopped sound wave interference of speaker awl basin front and back, does not but make full use of the back sound wave.The phase inverted cabinet of design afterwards, basic principle is perforate and load onto circular phase-reversing tube on the panel of casing, radiates after making the sound wave anti-phase of loud speaker back side radiation; With the sound wave of speaker awl basin head-on radiation is superimposed total sound radiation pressure is strengthened; But when the signal frequency of resetting was very low, the air in the casing will gush from phase-reversing tube, thereby produced airflow noise; And the acoustic resistance of box house is reduced; The Oscillation Amplitude of speaker awl basin strengthens, thereby causes the low frequency playback lower limit of audio amplifier to promote, and the audio distortions degree increases.
The utility model content
This utility model provides a kind of audio amplifier, eliminates airflow noise and can effectively reduce the audio amplifier of low frequency playback lower limit through seal case.
The embodiment of the invention provides a kind of audio amplifier; Comprise that casing, loud speaker and bullet basin all are installed on the casing; Said casing, loud speaker and bullet basin form a closed box; Said bullet basin is the recessed and telescopic vibrating diaphragm of an arc, through seamless link, adopts seamless link between the side plate of said casing and the base plate between the side plate of said casing and the top board.
Realize seamless link through welding between the side plate of said casing and the top board, perhaps realize seamless link through welding between the side plate of said casing and the base plate.
Realize seamless link through the metal integral casting between the side plate of said casing and the top board, perhaps realize seamless link through the metal integral casting between the side plate of said casing and the base plate.
Said bullet basin is an awl basin shape vibrating diaphragm.
The dust cap that the center of said awl basin shape vibrating diaphragm has a projection spherical in shape.
Through implementing the utility model, through the closed box of structure seamless link, air can't release, and can not produce airflow noise; When the speaker awl basin vibrated, the air pressure in the casing changed thereupon, drove the bullet basin and did corresponding vibrations, and at this moment, the acoustic resistance in the casing improves relatively, and the Oscillation Amplitude of speaker awl basin reduces, and resonance frequency reduces, thereby low frequency playback lower limit reduces.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the perspective view of the audio amplifier among the utility model embodiment;
Fig. 2 is that audio amplifier A-A among the utility model embodiment is to profile.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The disclosed audio amplifier of the utility model embodiment; Comprise that mainly casing, loud speaker and bullet basin all are installed on the casing; This casing, loud speaker and bullet basin form a closed box; This bullet basin is the recessed and telescopic vibrating diaphragm of an arc, through seamless link, adopts seamless link between the side plate of this casing and the base plate between the side plate of this casing and the top board.
Concrete, Fig. 1 to Fig. 2 shows the structural representation of audio amplifier in the utility model, and the audio amplifier of the utility model comprises casing 1, loud speaker 2 and plays basin 3 that wherein, loud speaker 2 is installed on the casing 1 with bullet basin 3; The circuit of the casing of the utility model, magnetic circuit are all identical with prior art, so repeat no more at this.The casing 1 here, loud speaker 2 and bullet basin 3 form a closed box, and this bullet basin 3 is the recessed and telescopic vibrating diaphragm of an arc, through seamless link, adopts seamless link between the side plate 12 of this casing 1 and the base plate 13 between the side plate 12 of this casing 1 and the top board 11.
Need to prove, realize seamless link through welding between the side plate 12 of this casing 1 and the top board 11, perhaps realize seamless link through welding between the side plate 12 of this casing 1 and the base plate 13.Realize seamless link through the metal integral casting between the side plate 12 of this casing 1 and the top board 11, perhaps realize seamless link through the metal integral casting between the side plate 12 of this casing 1 and the base plate 13.
What further specify is, this bullet basin 3 has the recessed and telescopic vibrating diaphragm 31 of an arc, and in the present embodiment, this vibrating diaphragm 31 is set to bore basin shape, has the anti-tepetate 32 of a projection spherical in shape in the center of this vibrating diaphragm 31.
The casing 1 here, loud speaker 2 and bullet basin 3 form a closed box 4, and the air in the closed box 4 can be compressed to produce under the effect of loud speaker 2 back sides vibration and resonate, and play basin 3 vibrations and sounding thereby drive; When the resonance frequency of sound frequency and audio amplifier near or when identical; The amplitude of loud speaker 2 awl basins becomes very little, disappears owing to hinder the energy that plays basin 3 acoustic radiations, and the amplitude that at this moment plays basin 3 reaches maximum; Produce stronger homophase acoustic radiation, loud speaker 2 low frequency radiation abilities are strengthened; When sound frequency further improved, the amplitude that plays basin 3 began to weaken, and the amplitude of loud speaker 2 awl basins begins to strengthen, because both phase places are much at one, and the acoustic pressure mutual superposition.
The utility model can also use bigbore bullet basin under the condition that reduces tank-volumes hardly, the low frequency playback lower limit of audio amplifier is further expanded.
In sum, because the audio amplifier of the utility model forms a closed box, casing of loudspeaker box adopts seamless link, and air stream can't release, and can not produce airflow noise; When the speaker awl basin vibrated, the air pressure in the casing changed thereupon, drove the bullet basin and did corresponding vibrations, and at this moment, the acoustic resistance in the casing improves relatively, and the Oscillation Amplitude of speaker awl basin reduces, and resonance frequency reduces, thereby low frequency playback lower limit reduces.
Used concrete example among this paper the principle and the execution mode of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (5)
1. audio amplifier; Comprise that casing, loud speaker and bullet basin all are installed on the casing; It is characterized in that said casing, loud speaker and bullet basin form a closed box, said bullet basin is the recessed and telescopic vibrating diaphragm of an arc; Through seamless link, adopt seamless link between the side plate of said casing and the base plate between the side plate of said casing and the top board.
2. audio amplifier as claimed in claim 1 is characterized in that, realizes seamless link through welding between the side plate of said casing and the top board, perhaps realizes seamless link through welding between the side plate of said casing and the base plate.
3. audio amplifier as claimed in claim 1 is characterized in that, realizes seamless link through the metal integral casting between the side plate of said casing and the top board, perhaps realizes seamless link through the metal integral casting between the side plate of said casing and the base plate.
4. audio amplifier as claimed in claim 1 is characterized in that, said bullet basin is an awl basin shape vibrating diaphragm.
5. audio amplifier as claimed in claim 4 is characterized in that, the dust cap that the center of said awl basin shape vibrating diaphragm has a projection spherical in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203999404U CN202276437U (en) | 2011-10-19 | 2011-10-19 | Sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203999404U CN202276437U (en) | 2011-10-19 | 2011-10-19 | Sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202276437U true CN202276437U (en) | 2012-06-13 |
Family
ID=46196770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203999404U Expired - Fee Related CN202276437U (en) | 2011-10-19 | 2011-10-19 | Sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202276437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105282467A (en) * | 2014-07-22 | 2016-01-27 | 深圳纽斯声学系统有限公司 | TV set with built-in double-diaphragm resonant sound boxes |
| CN115175050A (en) * | 2020-12-24 | 2022-10-11 | 美特科技(苏州)有限公司 | Phase inversion tube and phase inversion type sound box using same |
-
2011
- 2011-10-19 CN CN2011203999404U patent/CN202276437U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105282467A (en) * | 2014-07-22 | 2016-01-27 | 深圳纽斯声学系统有限公司 | TV set with built-in double-diaphragm resonant sound boxes |
| CN115175050A (en) * | 2020-12-24 | 2022-10-11 | 美特科技(苏州)有限公司 | Phase inversion tube and phase inversion type sound box using same |
| CN115175050B (en) * | 2020-12-24 | 2025-01-21 | 美特科技(苏州)有限公司 | A phase reversal tube and phase reversal speaker using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204993827U (en) | Loudspeaker module | |
| CN103686558B (en) | Speaker unit | |
| CN103414985B (en) | The suspended structure of Microspeaker | |
| CN203984675U (en) | A kind of sonic transducer vibrating diaphragm and a kind of loud speaker | |
| CN202663534U (en) | Loudspeaker | |
| CN203289635U (en) | Spring plate and multifunctional sounder applying spring plate | |
| CN101444109B (en) | Loudspeaker with reduced rocking tendency | |
| CN107948891A (en) | Electroacoustic component, electroacoustic device and mobile terminal | |
| CN202276437U (en) | Sound box | |
| CN107809707A (en) | Electroacoustic component and mobile terminal | |
| CN201967122U (en) | Magnetic circuit system and speaker applying same | |
| CN209201314U (en) | Loudspeaker enclosure | |
| CN203574851U (en) | Loudspeaker module | |
| CN202957969U (en) | Soundbox | |
| CN205847589U (en) | A thin horn structure | |
| CN102387446B (en) | Sound equipment structure and electronic device using the same | |
| CN207926912U (en) | Loudspeaker enclosure | |
| CN203708476U (en) | Loudspeaker | |
| CN208590112U (en) | Microphone device | |
| CN203590449U (en) | Loudspeaker device | |
| CN201290173Y (en) | Multifunctional sound generator | |
| CN2641963Y (en) | Loudspeakers | |
| CN202455491U (en) | Mega bass mini loudspeaker box | |
| CN206365034U (en) | car coaxial horn | |
| CN204408620U (en) | A kind of Music centre loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20120613 Termination date: 20181019 |