CN2917138Y - Blue teeth sound box - Google Patents
Blue teeth sound box Download PDFInfo
- Publication number
- CN2917138Y CN2917138Y CN 200620013873 CN200620013873U CN2917138Y CN 2917138 Y CN2917138 Y CN 2917138Y CN 200620013873 CN200620013873 CN 200620013873 CN 200620013873 U CN200620013873 U CN 200620013873U CN 2917138 Y CN2917138 Y CN 2917138Y
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- CN
- China
- Prior art keywords
- bluetooth
- audio
- signal
- power amplifier
- bluetooth module
- 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
A Bluetooth sound box is provided, inside the body of which is provided with a Bluetooth module, an audio expander, a dimensional sound power amplifier, a loudspeaker and a power source. The Bluetooth module is connected and bound with other external Bluetooth equipments, demodulates and outputs dimensional sound signal to the audio expander. The audio expander expands the signal bandwidth and compensates the signal power and then outputs the signal to the dimensional sound power amplifier. Signals after the power amplification drive the loudspeaker to emit sound. The utility model can conveniently and timely fulfill wireless audio connection with digital products with Bluetooth, ensure mobility of digital products while enjoying high-fidelity sound box, and provide the function of dimensional sound power amplification.
Description
Affiliated technical field
The utility model relates to a kind of acoustics that adopts the bluetooth specification transmitting audio signal, can be connected with other equipment wireless that meets bluetooth specification, as the notebook computer of embedded with bluetooth function, mobile phone, PDA centre of the palm computer etc., and its audio signal carried out the high-fidelity public address.
Background technology
With present technology, appreciate high-quality acoustics must will have cover high-fidelity (HI-FI) sound system earlier, comprising: digital source of sound (CD or DVD), meet power amplifier and audio amplifier that high-fidelity requires.A cover system so not only volume very large take up room and put also can not be random, need to use signal cable to be connected between amplifier and the digital source of sound and just can use, owing to there is the digital source of sound of the restriction of stube cable arbitrarily to move.Progress along with science and technology, digital source of sound has been not limited to the equipment that the big inconvenience of CD, DVD equal-volume is moved, the mobile phone of increasing digital product such as MP3, built-in MP3 function, notebook computer etc. enter people's life, and they generally have portability, advantage that tonequality is good, easy-to-use.And increasing digital product built-in Bluetooth function.How easily audio amplifier, amplifier to be connected in order to the high-quality acoustics of resetting with these portable digital products, and still keep portable digital equipment movably characteristics just become the problem that needs solve.
Summary of the invention
In order to solve the problem that is connected inconvenience between existing audio amplifier, amplifier and digital product, the utility model provides a kind of Baffle Box of Bluetooth, it can make things convenient for, instant carry out ANTENN AUDIO with any digital product with Bluetooth function and be connected, the removable characteristic that when appreciating high-quality music, still keeps digital product, and this Baffle Box of Bluetooth can provide stereo public address.
The technical scheme that its technical problem that solves the utility model adopts is: Baffle Box of Bluetooth is received and dispatched module, power amplifier, power supply, loud speaker and casing by blue teeth wireless and is formed; The equipment that the bluetooth module is used for meeting with other bluetooth specification carries out wireless data communication, and the audio signal of output demodulation, and this signal amplifies rear drive loud speaker sounding via power amplifier, and power unit provides the each several part circuit required voltage.
The utlity model has following main beneficial effect:
1, can carry out wireless connections with any equipment that is built-in with Bluetooth function easily.
2, can the logarithmic code product audio signal of (as the mobile phone of embedded with bluetooth function, MP3, notebook computer, PDA centre of the palm computer etc.) output carry out wireless public address.
3, the stereo high-fidelity music center effect of resetting.
4, exempt the constraint of the electric wire between the utility model and digital product, made the user can not be subjected to environmental limitations arbitrarily to put the utility model.
5, can form the wireless speech sound reinforcement system with the wireless microphone that is built-in with Bluetooth function, satisfy the needs of meeting and teaching public address.
6, the utility model is widely used, and market prospects are wide, social and economic benefits and good.
Description of drawings
Accompanying drawing 1 is Facad structure schematic diagram of the present utility model (is example with two sound channel audio amplifiers);
Accompanying drawing 2 is the I-I cutaway view of accompanying drawing 1;
Accompanying drawing 3 is an electrical principle block diagram of the present utility model.
Now in conjunction with the accompanying drawings, embodiment of the present utility model is described further.
In Fig. 1,1. loud speaker, 2. casing, A is the L channel audio amplifier, B is the R channel audio amplifier.
In Fig. 2,3. bluetooth module, 4. audio frequency expander, 5. stereo power amplifier, 6. power supply
In casing (2) inside bluetooth module (3), audio frequency expander (4), stereo power amplifier (5), loud speaker (1), power supply (6) are installed.
After bluetooth module (3) connects and binds with outside other bluetooth equipment, demodulation is also exported stereo audio signal to audio frequency expander (4), by audio frequency expander (4) signal is carried out inputing to stereo power amplifier (5) after bandwidth expansion and the frequency compensation, audio signal is sounded through power amplification rear drive loud speaker (1), and power supply (6) provides power supply for the each several part circuit.
Claims (3)
1. Baffle Box of Bluetooth, it is characterized in that: bluetooth module, audio frequency expander, stereo power amplifier, loud speaker, power supply are installed in voice box casing inside, after bluetooth module (3) connects and binds with outside other bluetooth equipment, demodulation is also exported stereo audio signal to audio frequency expander (4), by audio frequency expander (4) signal is carried out inputing to stereo power amplifier (5) after bandwidth expansion and the frequency compensation, audio signal is sounded through power amplification rear drive loud speaker (1).
2. Baffle Box of Bluetooth according to claim 1 is characterized in that: bluetooth module and stereo power amplifier coexist on the circuit board.
3. Baffle Box of Bluetooth according to claim 1 is characterized in that: bluetooth module and stereo power amplifier are with placing audio amplifier inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620013873 CN2917138Y (en) | 2006-05-16 | 2006-05-16 | Blue teeth sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620013873 CN2917138Y (en) | 2006-05-16 | 2006-05-16 | Blue teeth sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2917138Y true CN2917138Y (en) | 2007-06-27 |
Family
ID=38188052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620013873 Expired - Fee Related CN2917138Y (en) | 2006-05-16 | 2006-05-16 | Blue teeth sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2917138Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820575A (en) * | 2010-04-09 | 2010-09-01 | 江苏贝莱尔电气有限公司 | Background sound system by using Bluetooth signal transmission |
| CN102724609A (en) * | 2012-07-05 | 2012-10-10 | 深圳市奋达科技股份有限公司 | Portable wireless combined loudspeaker box system and control method thereof |
| CN104333836A (en) * | 2013-07-22 | 2015-02-04 | 上声电子（苏州工业园区）有限公司 | High fidelity acoustic transmission sound box |
| WO2015078283A1 (en) * | 2013-11-29 | 2015-06-04 | 文杰 | Public address system for teaching based on cellphone bluetooth function |
-
2006
- 2006-05-16 CN CN 200620013873 patent/CN2917138Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820575A (en) * | 2010-04-09 | 2010-09-01 | 江苏贝莱尔电气有限公司 | Background sound system by using Bluetooth signal transmission |
| CN102724609A (en) * | 2012-07-05 | 2012-10-10 | 深圳市奋达科技股份有限公司 | Portable wireless combined loudspeaker box system and control method thereof |
| CN102724609B (en) * | 2012-07-05 | 2014-09-24 | 深圳市奋达科技股份有限公司 | Portable wireless combined loudspeaker box system and control method thereof |
| CN104333836A (en) * | 2013-07-22 | 2015-02-04 | 上声电子（苏州工业园区）有限公司 | High fidelity acoustic transmission sound box |
| WO2015078283A1 (en) * | 2013-11-29 | 2015-06-04 | 文杰 | Public address system for teaching based on cellphone bluetooth function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Liao Shuhui Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |