CN204046788U - High-fidelity portable loudspeaker box - Google Patents
High-fidelity portable loudspeaker box Download PDFInfo
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- CN204046788U CN204046788U CN201420502256.8U CN201420502256U CN204046788U CN 204046788 U CN204046788 U CN 204046788U CN 201420502256 U CN201420502256 U CN 201420502256U CN 204046788 U CN204046788 U CN 204046788U
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- audio amplifier
- tube connector
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Abstract
The utility model relates to audio amplifier and manufactures field; in particular to a kind of high-fidelity portable loudspeaker box; comprise audio amplifier body, echo protection tube, handle pipe, lower tube connector and upper tube connector; described echo protection tube is four; two echo protection tube tops are connected by described upper tube connector; described upper tube connector is placed in the top of described audio amplifier body; the middle part of two upper tube connectors is connected with the two ends of described handle pipe respectively; the bottom of two echo protection tubes is connected by described lower tube connector, and described lower tube connector is connected with described audio amplifier body by retainer ring.These pipelines can form protection to audio amplifier on the one hand; prevent outer bound pair audio amplifier from carrying out the shock faced directly; thus effectively protect audio amplifier; on the other hand; these pipelines all communicate with each other when connecting; can ensure that the voice signal of low frequency frequency range to certain wavelength strengthens, prevent the acoustic signals of diaphragm of loudspeaker obverse and reverse from directly forming loop, and reduce atmospheric pressure further to the impact of sound-reducing.
Description
Technical field
The utility model relates to audio amplifier and manufactures field, particularly a kind of high-fidelity portable loudspeaker box.
Background technology
Audio amplifier is the terminal of whole sound system, and its effect is that audio frequency electric energy is converted to corresponding acoustic energy, and it is radiated space.It is the extremely important part of sound system, the signal of telecommunication is transformed into acoustical signal directly listens to so mission critical because which is responsible for the ear of people, it is wanted directly and the sense of hearing of people is come into contacts with, and the sense of hearing of people is very sensitive, and to the tone color of complex sound, there is very strong resolving ability.Along with the development of communication electronics, have higher requirement to portable loudspeaker box, in prior art, portable loudspeaker box is formed, with battery or electricity jack in casing primarily of loud speaker and casing.The audio input end that player is inserted into audio amplifier by audio output line can be able to be play in use.In prior art there is following shortcoming in this audio amplifier, when needs tourism or to carry out time playing in open air, owing to not having protective frame, causing audio amplifier to carry very inconvenient, putting onboard because rocking of vehicle easily causes cabinet inside device failure; In addition, existing cabinet is generally all placed in the inside of cabinet due to circuit board, can hinder the transmission of voice signal, affect sound effect.
Utility model content
The technical problem that the utility model solves is to provide a kind of high-fidelity portable loudspeaker box being convenient to fixed players, while can protecting audio amplifier, has good bass effect.
For achieving the above object, the utility model provides a kind of high-fidelity portable loudspeaker box, it is characterized in that: comprise audio amplifier body, echo protection tube, handle pipe, lower tube connector and upper tube connector, described echo protection tube is four, be separately positioned on four angles place of audio amplifier body, echo protection tube is divided into two groups, often organize two, two echo protection tube tops are connected by described upper tube connector, described upper tube connector is placed in the top of described audio amplifier body, be fixedly connected with by angle bar between upper tube connector with described audio amplifier body, the middle part of two upper tube connectors is connected with the two ends of described handle pipe respectively, the bottom of two echo protection tubes is connected by described lower tube connector, described lower tube connector is connected with described audio amplifier body by retainer ring, the one side of described lower tube connector and described audio amplifier body contacts has sounding port, this sounding port is communicated with described audio amplifier body interior, the top of described audio amplifier body is provided with circuit board fixing groove, is provided with circuit board in described circuit board fixing groove.The audio amplifier of the utility model to existing structure has done significant improvement, by existing audio amplifier periphery by echo protection tube, handle pipe, lower tube connector and upper tube connector wrap up, mainly play two aspect effects, these pipelines can form protection to audio amplifier on the one hand, prevent outer bound pair audio amplifier from carrying out the shock faced directly, thus effectively protect audio amplifier, on the other hand, these pipelines all communicate with each other when connecting, finally be communicated with audio amplifier inside by lower tube connector, these pipelines communicated with each other, can ensure that the voice signal of low frequency frequency range to certain wavelength strengthens, prevent the acoustic signals of diaphragm of loudspeaker obverse and reverse from directly forming loop, and reduce atmospheric pressure further to the impact of sound-reducing.
Preferably, the top of described echo protection tube is provided with supper bass floss hole.By arranging supper bass floss hole on echo protection tube, the supper bass effect of this audio amplifier effectively can be strengthened.
Preferably, described echo protection tube, handle pipe, lower tube connector and the interconnective position of upper tube connector are for communicating with each other.
Preferably, the loudspeaker position of described audio amplifier body is provided with loud speaker protection network, is fixed on audio amplifier body around described loud speaker protection network by bearer bar.Loud speaker protection network is set and effectively can protects loud speaker, prevent loud speaker directly and extraneous contact, improve the useful life of loud speaker.
Preferably, described circuit board is printed on power amplifier, described power amplifier comprises chip TDA2822M, electric capacity C1-C5, slide resistor RP1, resistance R1, Audio input jack IN, audio frequency accessory power outlet OUT, supply socket DC, first pin of described Audio input jack IN is connected with first fixed terminal of described slide resistor RP1, second fixed terminal of slide resistor RP1 described in second pin of described Audio input jack IN connects, the slip terminal of described slide resistor RP1 is connected with the negative pole of described electric capacity C1, the positive pole of described electric capacity C1 is connected with one end of described resistance R1 and the 7th pin of chip TDA2822M respectively, the other end of described resistance R1 is connected with second fixed terminal of described Audio input jack IN, 8th pin of described chip TDA2822M is connected with the positive pole of described electric capacity C2, the negative pole of described electric capacity C2 is connected with the 5th pin of electric capacity C4 and chip TDA2822M respectively, the other end of described electric capacity C4 respectively with the other end of resistance R1 and the 6th pin of chip TDA2822M, 4th pin connects, 4th the pin ground connection of described chip TDA2822M, 2nd pin of described chip DA2822M is connected with the positive pole of described supply socket DC positive pole and electric capacity C3 respectively, the negative pole of described electric capacity C3 and the negative pole of supply socket DC ground connection respectively, described electric capacity C5 is connected with between 1st pin of described chip DA2822M and the 3rd pin, 1st pin of described chip DA2822M is connected with a terminal of described audio frequency accessory power outlet OUT, and the 3rd pin of described chip DA2822M is connected with another terminal of described audio frequency accessory power outlet OUT.Chip in the utility model in power amplifier adopts TD2822M, TDA2822M is STMicw Electronics (ST) is the binary channels monolithic power amplification circuit of portable audio playback equipment exploitation specially, has the feature of low intermodulation distortion and low quiescent current.TDA2822M also has a unique distinction to be exactly that operating voltage range is very wide, can normally work within the scope of 2V-12V.This circuit is connected into monaural bridge-type with one piece of TDA2822M power amplifier integrate circuit to amplify (BTL) mode, and little peripheral cell, need not fill radiator, playback effect is very limpid, because components and parts are less, be therefore highly suitable for open air and carry, not fragile.
Preferably, described electric capacity C1-C3 is electrochemical capacitor, and electric capacity C4 and electric capacity C5 is ceramic disc capacitor.
The beneficial effects of the utility model are: the audio amplifier of the utility model to existing structure has done significant improvement, by existing audio amplifier periphery by echo protection tube, handle pipe, lower tube connector and upper tube connector wrap up, mainly play two aspect effects, these pipelines can form protection to audio amplifier on the one hand, prevent outer bound pair audio amplifier from carrying out the shock faced directly, thus effectively protect audio amplifier, on the other hand, these pipelines all communicate with each other when connecting, finally be communicated with audio amplifier inside by lower tube connector, these pipelines communicated with each other, can ensure that the voice signal of low frequency frequency range to certain wavelength strengthens, prevent the acoustic signals of diaphragm of loudspeaker obverse and reverse from directly forming loop, and reduce atmospheric pressure further to the impact of sound-reducing.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing and preferred embodiment, as shown in Figure 1, a kind of high-fidelity portable loudspeaker box, comprise audio amplifier body 1, echo protection tube 2, handle pipe 3, lower tube connector 4 and upper tube connector 5, described echo protection tube is four, be separately positioned on four angles place of audio amplifier body, echo protection tube is divided into two groups, often organize two, two echo protection tube tops are connected by described upper tube connector, described upper tube connector is placed in the top of described audio amplifier body, be fixedly connected with by angle bar 6 between upper tube connector with described audio amplifier body, the middle part of two upper tube connectors is connected with the two ends of described handle pipe respectively, the bottom of two echo protection tubes is connected by described lower tube connector, described lower tube connector is connected with described audio amplifier body by retainer ring 7, the one side of described lower tube connector and described audio amplifier body contacts has sounding port, this sounding port is communicated with described audio amplifier body interior, the top of described audio amplifier body is provided with circuit board fixing groove 8, is provided with circuit board 9 in described circuit board fixing groove.Described echo protection tube, handle pipe, lower tube connector and the interconnective position of upper tube connector are for communicating with each other, and sound transmits in these pipelines, and bass effect is clear, good looking appearance.The audio amplifier of the utility model to existing structure has done significant improvement, by existing audio amplifier periphery by echo protection tube, handle pipe, lower tube connector and upper tube connector wrap up, mainly play two aspect effects, these pipelines can form protection to audio amplifier on the one hand, prevent outer bound pair audio amplifier from carrying out the shock faced directly, thus effectively protect audio amplifier, on the other hand, these pipelines all communicate with each other when connecting, finally be communicated with audio amplifier inside by lower tube connector, these pipelines communicated with each other, can ensure that the voice signal of low frequency frequency range to certain wavelength strengthens, prevent the acoustic signals of diaphragm of loudspeaker obverse and reverse from directly forming loop, and reduce atmospheric pressure further to the impact of sound-reducing.
As further improvement of the utility model, the top of described echo protection tube is provided with supper bass floss hole 10.By arranging supper bass floss hole on echo protection tube, the supper bass effect of this audio amplifier effectively can be strengthened.
The loudspeaker position of described audio amplifier body is provided with loud speaker protection network 11, is fixed on audio amplifier body around described loud speaker protection network by bearer bar 12.Loud speaker protection network is set and effectively can protects loud speaker, prevent loud speaker directly and extraneous contact, improve the useful life of loud speaker.
As shown in Figure 2, because the utility model will be used as outdoor use, therefore, must ensure that the element on circuit board is few as much as possible, such probability of damage that could reduce audio amplifier, simultaneously also can power saving, thus the power amplifier in the utility model adopts special power amplifier, specific as follows, described power amplifier comprises chip TDA2822M, electric capacity C1-C5, slide resistor RP1, resistance R1, Audio input jack IN, audio frequency accessory power outlet OUT, supply socket DC, first pin of described Audio input jack IN is connected with first fixed terminal of described slide resistor RP1, second fixed terminal of slide resistor RP1 described in second pin of described Audio input jack IN connects, the slip terminal of described slide resistor RP1 is connected with the negative pole of described electric capacity C1, the positive pole of described electric capacity C1 is connected with one end of described resistance R1 and the 7th pin of chip TDA2822M respectively, the other end of described resistance R1 is connected with second fixed terminal of described Audio input jack IN, 8th pin of described chip TDA2822M is connected with the positive pole of described electric capacity C2, the negative pole of described electric capacity C2 is connected with the 5th pin of electric capacity C4 and chip TDA2822M respectively, the other end of described electric capacity C4 respectively with the other end of resistance R1 and the 6th pin of chip TDA2822M, 4th pin connects, 4th the pin ground connection of described chip TDA2822M, 2nd pin of described chip DA2822M is connected with the positive pole of described supply socket DC positive pole and electric capacity C3 respectively, the negative pole of described electric capacity C3 and the negative pole of supply socket DC ground connection respectively, described electric capacity C5 is connected with between 1st pin of described chip DA2822M and the 3rd pin, 1st pin of described chip DA2822M is connected with a terminal of described audio frequency accessory power outlet OUT, and the 3rd pin of described chip DA2822M is connected with another terminal of described audio frequency accessory power outlet OUT.Chip in the utility model in power amplifier adopts TD2822M, TDA2822M is STMicw Electronics (ST) is the binary channels monolithic power amplification circuit of portable audio playback equipment exploitation specially, has the feature of low intermodulation distortion and low quiescent current.TDA2822M also has a unique distinction to be exactly that operating voltage range is very wide, can normally work within the scope of 2V-12V.This circuit is connected into monaural bridge-type with one piece of TDA2822M power amplifier integrate circuit to amplify (BTL) mode, and little peripheral cell, need not fill radiator, playback effect is very limpid, because components and parts are less, be therefore highly suitable for open air and carry, not fragile.Described electric capacity C1-C3 is electrochemical capacitor, and electric capacity C4 and electric capacity C5 is ceramic disc capacitor.
The audio amplifier of the utility model to existing structure has done significant improvement, by existing audio amplifier periphery by echo protection tube, handle pipe, lower tube connector and upper tube connector wrap up, mainly play two aspect effects, these pipelines can form protection to audio amplifier on the one hand, prevent outer bound pair audio amplifier from carrying out the shock faced directly, thus effectively protect audio amplifier, on the other hand, these pipelines all communicate with each other when connecting, finally be communicated with audio amplifier inside by lower tube connector, these pipelines communicated with each other, can ensure that the voice signal of low frequency frequency range to certain wavelength strengthens, prevent the acoustic signals of diaphragm of loudspeaker obverse and reverse from directly forming loop, and reduce atmospheric pressure further to the impact of sound-reducing.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. a high-fidelity portable loudspeaker box, it is characterized in that: comprise audio amplifier body, echo protection tube, handle pipe, lower tube connector and upper tube connector, described echo protection tube is four, be separately positioned on four angles place of audio amplifier body, echo protection tube is divided into two groups, often organize two, two echo protection tube tops are connected by described upper tube connector, described upper tube connector is placed in the top of described audio amplifier body, be fixedly connected with by angle bar between upper tube connector with described audio amplifier body, the middle part of two upper tube connectors is connected with the two ends of described handle pipe respectively, the bottom of two echo protection tubes is connected by described lower tube connector, described lower tube connector is connected with described audio amplifier body by retainer ring, the one side of described lower tube connector and described audio amplifier body contacts has sounding port, this sounding port is communicated with described audio amplifier body interior, the top of described audio amplifier body is provided with circuit board fixing groove, is provided with circuit board in described circuit board fixing groove.
2. high-fidelity portable loudspeaker box according to claim 1, is characterized in that: the top of described echo protection tube is provided with supper bass floss hole.
3. high-fidelity portable loudspeaker box according to claim 1 and 2, is characterized in that: described echo protection tube, handle pipe, lower tube connector and the interconnective position of upper tube connector are for communicating with each other.
4. high-fidelity portable loudspeaker box according to claim 3, is characterized in that: the loudspeaker position of described audio amplifier body is provided with loud speaker protection network, is fixed on audio amplifier body around described loud speaker protection network by bearer bar.
5. high-fidelity portable loudspeaker box according to claim 4, it is characterized in that: described circuit board is printed on power amplifier, described power amplifier comprises chip TDA2822M, electric capacity C1-C5, slide resistor RP1, resistance R1, Audio input jack IN, audio frequency accessory power outlet OUT, supply socket DC, first pin of described Audio input jack IN is connected with first fixed terminal of described slide resistor RP1, second fixed terminal of slide resistor RP1 described in second pin of described Audio input jack IN connects, the slip terminal of described slide resistor RP1 is connected with the negative pole of described electric capacity C1, the positive pole of described electric capacity C1 is connected with one end of described resistance R1 and the 7th pin of chip TDA2822M respectively, the other end of described resistance R1 is connected with second fixed terminal of described Audio input jack IN, 8th pin of described chip TDA2822M is connected with the positive pole of described electric capacity C2, the negative pole of described electric capacity C2 is connected with the 5th pin of electric capacity C4 and chip TDA2822M respectively, the other end of described electric capacity C4 respectively with the other end of resistance R1 and the 6th pin of chip TDA2822M, 4th pin connects, 4th the pin ground connection of described chip TDA2822M, 2nd pin of described chip DA2822M is connected with the positive pole of described supply socket DC positive pole and electric capacity C3 respectively, the negative pole of described electric capacity C3 and the negative pole of supply socket DC ground connection respectively, described electric capacity C5 is connected with between 1st pin of described chip DA2822M and the 3rd pin, 1st pin of described chip DA2822M is connected with a terminal of described audio frequency accessory power outlet OUT, and the 3rd pin of described chip DA2822M is connected with another terminal of described audio frequency accessory power outlet OUT.
6. high-fidelity portable loudspeaker box according to claim 5, is characterized in that: described electric capacity C1-C3 is electrochemical capacitor, and electric capacity C4 and electric capacity C5 is ceramic disc capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502256.8U CN204046788U (en) | 2014-09-02 | 2014-09-02 | High-fidelity portable loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502256.8U CN204046788U (en) | 2014-09-02 | 2014-09-02 | High-fidelity portable loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204046788U true CN204046788U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420502256.8U Expired - Fee Related CN204046788U (en) | 2014-09-02 | 2014-09-02 | High-fidelity portable loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204046788U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104902381A (en) * | 2015-04-30 | 2015-09-09 | 常州英耐尔电子有限公司 | Four-element vehicle-mounted strong-sound denial device |
| CN110913291A (en) * | 2019-12-03 | 2020-03-24 | 秦皇岛达则科技有限公司 | Intelligent regulation audio amplifier |
-
2014
- 2014-09-02 CN CN201420502256.8U patent/CN204046788U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104902381A (en) * | 2015-04-30 | 2015-09-09 | 常州英耐尔电子有限公司 | Four-element vehicle-mounted strong-sound denial device |
| CN110913291A (en) * | 2019-12-03 | 2020-03-24 | 秦皇岛达则科技有限公司 | Intelligent regulation audio amplifier |
| CN110913291B (en) * | 2019-12-03 | 2020-12-11 | 安康超美特科技股份有限公司 | A smart adjustable speaker |
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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: 20141224 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |