CN2814866Y - Simple device for connecting vehicular audio with MP3 - Google Patents
Simple device for connecting vehicular audio with MP3 Download PDFInfo
- Publication number
- CN2814866Y CN2814866Y CN 200520006258 CN200520006258U CN2814866Y CN 2814866 Y CN2814866 Y CN 2814866Y CN 200520006258 CN200520006258 CN 200520006258 CN 200520006258 U CN200520006258 U CN 200520006258U CN 2814866 Y CN2814866 Y CN 2814866Y
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- CN
- China
- Prior art keywords
- audio
- jack
- player
- vehicle
- output interface
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- Expired - Fee Related
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Abstract
The utility model discloses a simple device for connecting a vehicle audio to an MP3 player. The utility model is provided with a stereophonic signal conversion jack (3) and a power source output interface (2) on a panel (1) of the original vehicle audio, wherein instead of connecting to an audio control system, a conducting wire of the original system is connected to the conversion jack (3) and is led to the audio control system from another two connection points of the jack (3); the interface is provided with two conducting wires to connect with a system power source, wherein one conducting wire is connected with the positive electrode of the power source, and the other conducting wire is a grounding wire; MP3 signals are inputted to the audio system through an earphone jack (6) of the MP3 player and a stereophonic signal wire (4); the power source output interface is connected to the MP3 player through a USB connecting wire (5). With the simple device for connecting the MP3 player, the ordinary vehicle audio can play high-quality audio resources stored inside the MP3 player. The device has simple structure and can charge the MP3 player, and can not be interrupted by bumping of a vehicle when playing. The device is suitable for various vehicles with audio system.
Description
Technical field
The utility model relates to vehicle audio, furthermore relates to the device that is connected with MP3.
Background technology
Common vehicle audio is many, and its source of sound is a tape based on the cassette tape playback, and it is relatively poor to play tonequality, and signal to noise ratio is low.In recent years, having developed some is the vehicle audio of source of sound with CD, VCD, DVD, play tonequality and improve, however bad when road conditions, when automobile is beated, can cause and play interruption or jump onto the tracks.Advantages such as MP3 is the digital audio-frequency player of developing in recent years, and it has, and tonequality is good, signal to noise ratio is high, antimagnetic, antidetonation, capacity audio file, music download big, that can play multiple form are easy.It is subjected to people's attention once coming out.Chinese patent application has been announced a kind of MP3 playing device for No. 01203490.8,03252717.9 number announced a kind of " automobile Flash MP3 playing controller ", 03207337.2 number announced a kind of " the multi-functional DVD player of vehicle mounted MP 3 and DVD ", 200420018579.6 number announced a kind of " the automotive electronics music storage and the playing device that have USB interface ", announced a kind of " automobile-used MP3 playing device " No. 200420059742.3.In the above-mentioned prior art, MP3 is used for vehicle audio all to be needed the data of MP3 are read by FPDP, handles by control circuit then again and plays.This just must change ripe circuit, and the technology and equipment of manufacturer is had relatively high expectations.
Summary of the invention
It is a kind of under the situation that changes original car audio system circuit hardly that the purpose of this utility model is to provide, just the jockey that MP3 can be play on vehicle audio.
For reaching this purpose, the easy device that the vehicle audio that the designer provides connects MP3 is on original vehicle audio appropriate location, install a stereo audio signal conversion jack additional, the lead reconfiguration that original system is connected with voice control system is to the conversion jack, and two other contact from jack draws back voice control system again; On original vehicle audio appropriate location, install a power output interface additional simultaneously, this interface has two leads to link to each other with system power supply, and wherein a lead links to each other with positive source, and another root lead is an earth connection; The output of MP3 audio frequency is to insert sound system by a stereophonic signal line; With a USB line commonly used power output interface is linked to each other with MP3 in addition, power to MP3.
Its operation principle is: stereo audio signal conversion jack is used for changing the source of sound of input power amplifier.When jack did not meet MP3, system's source of sound kept being communicated with by female contact; When jack inserts stereophonic signal line plug, the source of sound automatic disconnection of original system, the MP3 audio signal is sent to system's power amplifier by volume control, passes through the loudspeaker playback again after signal is amplified.Power output interface is used for providing suitable power supply to MP3.When MP3 was connected with power output interface, system power supply promptly can be MP3 power supply, charging.If the original system overtension can be provided with a simple reduction voltage circuit and carry out step-down, obtain giving MP3 by power output interface again after the suitable voltage.
If the audio signal of original system not by volume potentiometer, can directly be connected on the power amplifier input with the point of MP3 audio signal input, can utilize the sound controlled function controls playing of MP3.
Above-mentioned power output interface adopts USB port commonly used, and the wherein only power supply of connectivity port and earth point are so that be connected with MP3.
The easy device of the connection MP3 that use the utility model provides can make common vehicle audio can play the high-quality source of sound of MP3, and the music that obtains high-quality is enjoyed, and satisfies the music demand of car owner's personalization; The passenger can select to play the MP3 music that carries.This apparatus structure is simple, also can charge to MP3; Can not beat to cause to play during broadcast and interrupt because of automobile.This device is applicable to the various automobiles that have sound system.
Description of drawings
Fig. 1 is a conversion of signals jack schematic diagram, and Fig. 2 is a power supply output plughole schematic diagram, and Fig. 3 is that vehicle audio is connected the easy device schematic diagram with MP3.
Among the figure, L, R represent left and right acoustic channels respectively, and CK represents jack, and VCC represents power supply; 1 is the vehicle audio panel, and 2 is output port of power source, and 3 is the conversion of signals jack, and 4 is the stereophonic signal line, and 5 is the USB connecting line, and 6 is earphone jack, and 7 is MP3.
Embodiment
Embodiment installs stereo audio signal conversion jack 3 on the original vehicle audio of certain car appropriate location, as accompanying drawing 1 and 3, the lead reconfiguration that original system is connected with voice control system is to changing on the jack 3; Simultaneously on original vehicle audio appropriate location, install power output interface 2 additional, as accompanying drawing 2 and 3, power output interface 2 adopts USB port commonly used, the wherein only power supply of connectivity port and earth point, this interface 2 has two leads to link to each other with system power supply, and wherein a lead links to each other with positive source, and another root lead is an earth connection; The MP3 output signal inserts sound system by earphone jack 6 and a stereophonic signal line 4 of MP3, with a USB line 5 commonly used power output interface 2 is linked to each other with MP3 in addition, powers to MP3.
Claims (2)
1 one kinds of vehicle audios connect the easy device of MP3, it is characterized in that it is to go up at original vehicle audio panel (1) a stereo audio signal conversion jack (3) is installed, the lead reconfiguration that original system is connected with voice control system arrives on the conversion jack (3), and two other contact from jack (3) draws back voice control system again; Go up at this vehicle audio panel (1) simultaneously a power output interface (2) is installed, this interface has two leads to link to each other with system power supply, and wherein a lead links to each other with positive source, and another root lead is an earth connection; The output of MP3 audio frequency is that an earphone jack (6) and the stereophonic signal line (4) by MP3 inserts sound system; Also have a USB line (5) that power output interface (2) is linked to each other with MP3.
2 vehicle audios as claimed in claim 1 connect the easy device of MP3, it is characterized in that above-mentioned power output interface (2) adopts USB port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006258 CN2814866Y (en) | 2005-08-17 | 2005-08-17 | Simple device for connecting vehicular audio with MP3 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006258 CN2814866Y (en) | 2005-08-17 | 2005-08-17 | Simple device for connecting vehicular audio with MP3 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814866Y true CN2814866Y (en) | 2006-09-06 |
Family
ID=36949952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520006258 Expired - Fee Related CN2814866Y (en) | 2005-08-17 | 2005-08-17 | Simple device for connecting vehicular audio with MP3 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814866Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572632A (en) * | 2011-12-21 | 2012-07-11 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted information system device with earphone interface |
-
2005
- 2005-08-17 CN CN 200520006258 patent/CN2814866Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572632A (en) * | 2011-12-21 | 2012-07-11 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted information system device with earphone interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |