CN201967099U - Hi-Fi miniature sound box - Google Patents
Hi-Fi miniature sound box Download PDFInfo
- Publication number
- CN201967099U CN201967099U CN2011200202931U CN201120020293U CN201967099U CN 201967099 U CN201967099 U CN 201967099U CN 2011200202931 U CN2011200202931 U CN 2011200202931U CN 201120020293 U CN201120020293 U CN 201120020293U CN 201967099 U CN201967099 U CN 201967099U
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- CN
- China
- Prior art keywords
- audio amplifier
- fidelity
- casing
- protecgulum
- cover body
- 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
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Abstract
The utility model discloses a Hi-Fi (High Fidelity) miniature sound box and aims to provide a small sound box which has attractive appearance and high fidelity. The Hi-Fi miniature sound box comprises a loudspeaker and a box body, wherein, the box body comprises a front cover and a back cover, a color ring is arranged at the periphery of the loudspeaker on the front cover, two phase inversion pipes are arranged in the box body, the outlets of the two phase inversion pipes are arranged on the front cover, the lower bottom of the back cover body is a plane, both the upper bottom and the back of the back cover body are curved surfaces, left side surface and right side surface are not parallel, and strengthening ribs are arranged on the corners of the back cover body.
Description
Technical field
The utility model relates to a kind of audio amplifier, relates in particular to a kind of mini audio amplifier mobile and that carry of being convenient to.
Background technology
Along with the variation of people's aesthetic standards with to the raising of music quality, exquisite, small and exquisite mini audio amplifier is come into many families gradually.Exquisite outward appearance, the volume of miniaturization can be put on the shelf, also can moreover also have music-lover quite a lot to select its conduct equipment of music appreciating whenever and wherever possible on the lowboy in bedroom.Though it is powerful that mini audio amplifier is not pursued power, but little with volume, handsome in appearance, ornaments are convenient, the numerous users of attraction simple to operate.But wish that mini audio amplifier was not only attractive in appearance but also distortion is low, replaying effect is not to use well the person to pursue, existing most mini audio amplifier tonequality are bad, and the music playback distortion is big.
Standing wave interference and covibration appear easily for solving common audio amplifier, prior art is improved in some respects, as the day for announcing is that the patent documentation of on October 29th, 1997, notification number CN2266242Y discloses and a kind ofly box house is isolated into some prismatics space with dividing plate constitutes some grades of paraphase chambers, each paraphase chamber communicates in twos by phase-reversing tube, the final stage phase-reversing tube is opened on the cabinet panel, can improve the replaying effect of audio amplifier effectively.But this technology is to be difficult to realize on little audio amplifier, because the inner space of little audio amplifier is too little, promptly limits frequency-division section loud speaker is installed, and has also limited effectively cutting apart of space; And for example open day be that the patent documentation that August 25, publication number in 2010 are 201563211U discloses a kind of portable mini audio amplifier, it comprises that a housing monnolithic case is a mushroom, top is the umbrella holder for pester canopy and bottom, the middle part is provided with a loud speaker and a control circuit, be provided with light-emitting component in its underpart, profile is light and handy, attractive in appearance, is convenient for carrying use.But its shortcoming is not consider the play sound effect design of casing, disturbs processing and casing shock-absorbing to handle or the like such as anti-standing wave design and standing wave, and therefore, acoustics can be a greater impact.
Summary of the invention
The utility model purpose is to provide a kind of good looking appearance, the higher mini audio amplifier of reproducing signals fidelity.
The utility model is mainly solved by following technical proposals at the prior art problem, the mini audio amplifier of a kind of high-fidelity, comprise loud speaker, casing, casing is made up of protecgulum and rear cover body, is equipped with colour circle in the loud speaker outer periphery of protecgulum, be provided with two phase-reversing tubes in the casing, the outlet of two phase-reversing tubes is arranged on the protecgulum, and the bottom surface of rear cover body is that plane, upper bottom surface and the back side are that curved surface, left surface and right flank are the planes that is not parallel to each other, and is provided with reinforcement at the rear cover body edge.
At polychromy ring of the peripheral installation of the loud speaker of casing protecgulum, make audio amplifier specious, beautiful, dynamic strong.
For improving the casing acoustics, theory and practice proves, the collimation of destroying casing is the key that prevents that standing wave from producing, simultaneously, too much sharp excessively corner angle can produce diffraction and interference, therefore, body structure are designed to not have the not parallel curved surface of corner angle, promptly casing is carried out asymmetric design, eliminate the generation condition of standing wave as far as possible.Casing is formed by plastics casting, because the not enough casing resonance that produces of rigidity causes sound to dye, locates to be provided with reinforcement in the corner of casing etc., in order to increase casing rigidity and quality for remedying plastic box.
For increasing the bass effect of casing, in casing, be provided with phase-reversing tube, the utility model has adopted two phase-reversing tube structures for increasing the bass diffusion effect.The sectional area summation of two phase-reversing tubes equals equivalent single phase-reversing tube sectional area, and length is also identical with the single phase-reversing tube of equivalence.
As preferably, be provided with angle between the reinforcement greater than zero degree, promptly place in the mode of being parallel to each other not between the reinforcement, further avoid standing wave to produce.
As preferably, the outlet of two phase-reversing tubes is positioned at the both sides of protecgulum, and the one, it is attractive in appearance to be beneficial to audio amplifier, and the 2nd, be beneficial to the bass diffusion.
As preferably, colour circle is provided with buckle, and colour circle is connected on the front panel.Colour circle has multiple color, and the user can be replaced by the color of being liked at any time according to hobby.
As preferably, also comprise power amplification circuit, power circuit, volume control key, audio signal input end mouth, the audio signal input end mouth is arranged on the rear cover body, and volume control key is arranged on the protecgulum.Power amplification circuit, power circuit be placed on constitute active audio amplifier in the casing, to make things convenient for the broadcast of weak signal source of sound.
As preferably, power amplification circuit, power circuit also are provided with electro-magnetic shielding cover, the electromagnetic interference minimum that loud speaker is subjected to.
As preferably, casing is provided with the damping foot pad.The damping foot pad is made such as rubber by flexible material, further reduces the casing vibration, improves tonequality.
The beneficial effect that the utility model brings is, the audio amplifier volume is small and exquisite, attractive in appearance, and the reproducing signals fidelity is higher, and low cost of manufacture is convenient to move, carry.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is a kind of cutaway view of the present utility model.
Among the figure: the 1st, protecgulum, the 2nd, rear cover body, the 3rd, colour circle, the 4th, loud speaker, the 5th, phase-reversing tube, the 6th, reinforcement, the 7th, electro-magnetic shielding cover, the 8th, damping foot pad, the 9th, volume adjustment knob, the 10th, audio frequency input socket, the 11st, supply socket.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment: as shown in Figure 1 and Figure 2, the mini audio amplifier of a kind of high-fidelity, comprise loud speaker 4, casing, casing is made up of protecgulum 1 and rear cover body 2, at the colored annulus 3 of loud speaker 4 peripheral installations of protecgulum 1, two phase-reversing tubes 5 are installed in the casing, the outlet of two phase-reversing tubes 5 is in the both sides of protecgulum 1 and near the lower end, and the bottom surface of rear cover body 2 is that plane, upper bottom surface and the back side are that curved surface, left surface and right flank are the planes that is not parallel to each other, and is provided with reinforcement 6 at the edge of rear cover body 2.
The protecgulum 1 of casing and rear cover body 2, two phase-reversing tube 5, reinforcement 6 are structure as a whole, and are formed by the disposable casting of plastics.
Rosette 3 is the colored plastic annulus, such as sea blue look annulus, is connected on the front panel 1 by buckle.
Power amplification circuit, power circuit are placed on copper sheet radome 7 the insides, and audio frequency input socket 10, power input socket 11 are installed on the rear cover body 2.
Damping foot pad 8 is rubber blankets, is bonded in by seccotine on the bottom surface of rear cover body 2.
Audio signal is connected to socket 10, electric power connecting at supply socket 11 and connection switch, can enjoys interesting to listen to music by regulating volume adjustment knob 9.
Features such as so the utlity model has good looking appearance, small and exquisite, fidelity is higher, and is simple for structure, and cost is low.
Claims (7)
1. mini audio amplifier of high-fidelity, comprise loud speaker, casing, it is characterized in that: described casing is made up of protecgulum and rear cover body, loud speaker outer periphery at described protecgulum is equipped with colour circle, is provided with two phase-reversing tubes in the casing, and the outlet of two phase-reversing tubes is arranged on the protecgulum, the bottom surface of described rear cover body is that plane, upper bottom surface and the back side are that curved surface, left surface and right flank are the planes that is not parallel to each other, and is provided with reinforcement at the rear cover body edge.
2. according to the mini audio amplifier of the described a kind of high-fidelity of claim 1, it is characterized in that: be provided with angle between the described reinforcement greater than zero degree.
3. according to the mini audio amplifier of the described a kind of high-fidelity of claim 1, it is characterized in that: the outlet of described pair of phase-reversing tube is positioned at the both sides of protecgulum.
4. according to the mini audio amplifier of the described a kind of high-fidelity of claim 1, it is characterized in that: described colour circle is provided with buckle, and described colour circle is connected on the front panel.
5. according to the mini audio amplifier of the described a kind of high-fidelity of claim 1, it is characterized in that: also comprise power amplification circuit, power circuit, volume control key, audio signal input end mouth, described audio signal input end mouth is arranged on the rear cover body, and described volume control key is arranged on the protecgulum.
6. according to the mini audio amplifier of the described a kind of high-fidelity of claim 5, it is characterized in that: described power amplification circuit, power circuit also are provided with electro-magnetic shielding cover.
7. according to the mini audio amplifier of the described a kind of high-fidelity of claim 1, it is characterized in that: described casing is provided with the damping foot pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200202931U CN201967099U (en) | 2011-01-21 | 2011-01-21 | Hi-Fi miniature sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200202931U CN201967099U (en) | 2011-01-21 | 2011-01-21 | Hi-Fi miniature sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201967099U true CN201967099U (en) | 2011-09-07 |
Family
ID=44529652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200202931U Expired - Fee Related CN201967099U (en) | 2011-01-21 | 2011-01-21 | Hi-Fi miniature sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201967099U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535035A (en) * | 2017-01-10 | 2017-03-22 | 广东欧珀移动通信有限公司 | Wireless intelligent sound box |
| CN108810731A (en) * | 2018-09-04 | 2018-11-13 | 东莞市艺速电子科技有限公司 | Hi-Fi active audio amplifiers |
| CN109274148A (en) * | 2018-09-30 | 2019-01-25 | 朱石雄 | The power supply system and electronic equipment of voicefrequency circuit |
-
2011
- 2011-01-21 CN CN2011200202931U patent/CN201967099U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535035A (en) * | 2017-01-10 | 2017-03-22 | 广东欧珀移动通信有限公司 | Wireless intelligent sound box |
| CN106535035B (en) * | 2017-01-10 | 2019-04-12 | Oppo广东移动通信有限公司 | Intelligent wireless speaker |
| CN108810731A (en) * | 2018-09-04 | 2018-11-13 | 东莞市艺速电子科技有限公司 | Hi-Fi active audio amplifiers |
| CN109274148A (en) * | 2018-09-30 | 2019-01-25 | 朱石雄 | The power supply system and electronic equipment of voicefrequency circuit |
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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 |
Granted publication date: 20110907 Termination date: 20180121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |