CN201267016Y - Vehicle-mounted Bluetooth acoustic enclosure - Google Patents
Vehicle-mounted Bluetooth acoustic enclosure Download PDFInfo
- Publication number
- CN201267016Y CN201267016Y CNU2008200725862U CN200820072586U CN201267016Y CN 201267016 Y CN201267016 Y CN 201267016Y CN U2008200725862 U CNU2008200725862 U CN U2008200725862U CN 200820072586 U CN200820072586 U CN 200820072586U CN 201267016 Y CN201267016 Y CN 201267016Y
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- CN
- China
- Prior art keywords
- sound box
- power
- vehicle
- digital
- antijamming capability
- 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 disclose wireless audio equipment, namely, a vehicle-mounted Bluetooth sound box, comprising a Bluetooth module, a digital power amplifier, a microprocessor, a loudspeaker, a press key and an indicating lamp. The sound box is characterized in that: a choking coil of 40-80 mu H is arranged at a power position to carry out wave filtering; a transient voltage suppressors diode (TVS DIODE) for suppressing the voltage jump effect of the supplied power in vehicles is arranged at the front of the choking coil; and the diameter of a power cord is 3-5mm so as to improve the antijamming capability thereof. The sound box has the advantages that: the restrict of connecting wires between the sound box and a digital product is avoided so as to lead a user to be not limited by environment and the sound box have strong antijamming capability; the digital power amplifier is adopted, thus having high efficiency, small infidelity, low heat generation and low power consumption; in addition, an aluminum alloy box body is adopted, thus having shielding effect, being capable of suppressing electromagnetic interference and ensuring tonal quality; the sound box is suitable to various fields, has very high popularizing and applying value and broad market prospects; and therefore, the development of the sound box has extremely good economic and social benefits.
Description
Technical field
The utility model relates to a kind of wireless acoustics equipment.
Background technology
All kinds of audio amplifiers have been widely used in places such as sound equipment, TV, computer, owing to take wired connection, break easily, change the installation site if desired, also have line or device damage; In recent years, there are many companies to release the audio amplifier of band Bluetooth transmission function, can be subjected to the restriction of connecting line or transmission line, use flexible, convenient.Yet, the operational environment of automobile is generally abominable, be different from indoorly, jolt dust storm, the environmental impact that the temperature difference is big, have the vehicle power supply voltage fluctuation big, unfavorable factors such as electromagnetic interference exist, therefore, general Baffle Box of Bluetooth be used for vehicle-mounted in, often occur to crash, degradation problem under the sound quality.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of common sound equipment and existing Baffle Box of Bluetooth, and a kind of on-vehicle Bluetooth audio amplifier is provided.
This audio amplifier has blue teeth wireless transmitting-receiving module, digital power amplifier, microprocessor, loud speaker, button, indicator light equally, it is characterized in that the power supply position is provided with the choking-winding of 40～80 μ H, carries out filtering; Be provided with Transient Suppression Diode (tvs) before the choking-winding, the power supply mutation voltage influence that provides in the automobile is provided; Power line is directly got 3～5mm, to improve its antijamming capability.
Advantage of the present utility model:
1, exempted the constraint of connecting line between audio amplifier and the digital product, made the user can not be subjected to environmental limitations, arbitrarily put this product, antijamming capability is strong;
2, adopt digital power amplifier, efficient height, distortion are little, heating less, low in energy consumption;
3, adopt the above standard chips of technical grade, element, the utility model can adapt to automobile well and work under rugged environment;
4, adopt elements such as good bluetooth module, microprocessor, can well suppress electromagnetic interference, guarantee tonequality.
The utility model is fit to multiple place, has highly application value, and has extensive market prospects, and this Products Development has good economic benefits and social benefit.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the rearview of Fig. 1.
Fig. 4 is the utility model circuit block diagram.
Fig. 5 is the power unit line map.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is made detailed description further.
As shown in the figure, the utlity model has tetragonal partially casing 1, positive central authorities are provided with operation keyboard 2, both sides are provided with loud speaker 3, operation keyboard 2 is provided with that volume increasing-and-decreasing key 4 and song raise, downward modulation options button 5, closing of the circuit, hang up switch 6, is provided with indicator light 7, earphone interface 9, microphone 10 in the upper side of casing 1, and the back side of casing 1 is provided with communication interface 8, casing 1 can adopt the aluminium alloy manufacturing, has the effect that shielding electromagnetic wave is interfered.Be provided with bluetooth module, microprocessor, power amplifier, supply unit in the casing 1.Microprocessor carries out communication by serial port and bluetooth module; assign instruction; the bluetooth module is according to instruction works; people transmit sound by microphone and give the other side; the bluetooth module is used for carrying out wireless data communication with the equipment that meets Bluetooth protocol; can export the audio signal of demodulation then; this signal is through behind the digital power amplifier; drive loud speaker 3 sounding; power unit is by lithium battery power supply, and charging and protective circuit are arranged, and communication interface 8 also can be used to charging; after being full of electricity, charge protector work.Communication interface 8 links to each other with external computer, carries out communication, can upload or file in download, and file is stored in the memory of bluetooth module, and computer also can read the file of Baffle Box of Bluetooth and upload.The used power supply of the utility model by 40～80 μ H choking-winding carry out filtering, can play good anti-interference effect, in order to prevent the sudden change high voltage influence in the automobile power supply, adopt Transient Suppression Diode tvs, also can play inhibitory action well; In the design of circuit board,, improve its antijamming capability with power line footpath overstriking to 3～5mm; The incoming line keeping parallelism of audio signal left and right acoustic channels and isometric guarantees the input audio signal balance, and casing 1 adopts the aluminium alloy manufacturing, guarantees the good earth of circuit, can have good electrostatic discharge (ESD) protection, removes and disturbs.
Claims (1)
1, a kind of on-vehicle Bluetooth audio amplifier, comprise bluetooth module, digital power amplifier, microprocessor, loud speaker, button, indicator light, it is characterized in that the power supply position is provided with the choking-winding of 40～80 μ H, be provided with Transient Suppression Diode before the choking-winding, power line is directly got 3～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200725862U CN201267016Y (en) | 2008-10-10 | 2008-10-10 | Vehicle-mounted Bluetooth acoustic enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200725862U CN201267016Y (en) | 2008-10-10 | 2008-10-10 | Vehicle-mounted Bluetooth acoustic enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201267016Y true CN201267016Y (en) | 2009-07-01 |
Family
ID=40833385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200725862U Expired - Fee Related CN201267016Y (en) | 2008-10-10 | 2008-10-10 | Vehicle-mounted Bluetooth acoustic enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201267016Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158773A (en) * | 2011-01-07 | 2011-08-17 | 文创太阳能(福建)科技有限公司 | Bluetooth telephone speaker for solar car |
| CN103605305A (en) * | 2013-11-12 | 2014-02-26 | 吉林市航盛宏宇电子有限公司 | Pedestrian sound prompting apparatus for new energy vehicle |
| CN109274148A (en) * | 2018-09-30 | 2019-01-25 | 朱石雄 | The power supply system and electronic equipment of voicefrequency circuit |
-
2008
- 2008-10-10 CN CNU2008200725862U patent/CN201267016Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158773A (en) * | 2011-01-07 | 2011-08-17 | 文创太阳能(福建)科技有限公司 | Bluetooth telephone speaker for solar car |
| CN103605305A (en) * | 2013-11-12 | 2014-02-26 | 吉林市航盛宏宇电子有限公司 | Pedestrian sound prompting apparatus for new energy vehicle |
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20131010 |