CN217985376U - Vehicle-mounted audio equipment - Google Patents
Vehicle-mounted audio equipment Download PDFInfo
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- CN217985376U CN217985376U CN202221854200.XU CN202221854200U CN217985376U CN 217985376 U CN217985376 U CN 217985376U CN 202221854200 U CN202221854200 U CN 202221854200U CN 217985376 U CN217985376 U CN 217985376U
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Abstract
The application discloses vehicle-mounted audio equipment which comprises a power supply module, an audio module, a control module and a voltage stabilizing module, wherein the power supply module is used for supplying power, the audio module comprises an audio input component used for receiving input of an audio file and an audio output component used for outputting an audio signal, the control module is connected with the audio module, and the control module is used for analyzing the audio file into the audio signal and outputting the audio signal to the audio output component; voltage stabilizing module one end is connected with control module, and the other end is connected with power module, according to the technical scheme of this application, is provided with voltage stabilizing module in order to adjust the voltage between power module and the control module to can reduce the influence of circuit to on-vehicle audio equipment, thereby reach the purpose that improves on-vehicle audio equipment's stability.
Description
Technical Field
The application relates to the technical field of audio equipment, in particular to vehicle-mounted audio equipment.
Background
Currently, a car audio device is commonly provided in an automobile. The vehicle-mounted audio equipment is configured in a standard automobile and has the function of playing back audio and video media such as radio, CD, DVD and the like. The vehicle-mounted audio equipment can reduce the fatigue of passengers and drivers in the vehicle, improve the driving feeling and entertainment, and meanwhile, the sound receiving function on the sound equipment can hear timely broadcast notice and the like, so that timely information and information are provided for the passengers. However, since the vehicle-mounted voltage is likely to change during the driving state, the operating state of the vehicle-mounted audio apparatus is unstable, and the vehicle-mounted audio apparatus is severely disturbed by the circuit voltage.
SUMMERY OF THE UTILITY MODEL
An object of the application is to solve one of the technical problem that exists among the prior art at least, provide a vehicle audio equipment, can improve vehicle audio equipment's stability.
In a first aspect, an embodiment of the present application provides an in-vehicle audio device, including:
the power supply module is used for supplying power;
an audio module including an audio input part for receiving an audio file input and an audio output part for outputting an audio signal;
the control module is connected with the audio module and is used for analyzing the audio file into the audio signal and outputting the audio signal to the audio output component;
and the voltage stabilizing module is used for stabilizing voltage, one end of the voltage stabilizing module is connected with the control module, and the other end of the voltage stabilizing module is connected with the power supply module.
According to the vehicle-mounted audio equipment of the embodiment of the application, at least the following beneficial effects are achieved: the vehicle-mounted audio equipment comprises a power supply module, an audio module, a control module and a voltage stabilizing module, wherein the power supply module is used for supplying power, the audio module comprises an audio input component for receiving input of an audio file and an audio output component for outputting an audio signal, the control module is connected with the audio module, and the control module is used for analyzing the audio file into the audio signal and outputting the audio signal to the audio output component; according to the technical scheme of the application, the voltage stabilizing module is arranged to adjust the voltage between the power supply module and the control module, so that the influence of a circuit on the vehicle-mounted audio equipment can be reduced, and the aim of improving the stability of the vehicle-mounted audio equipment is fulfilled.
According to some embodiments of the application, the audio module further comprises a stereo component connected at one end to the control module and at the other end to the audio output component.
According to some embodiments of the application, the audio module further comprises a frequency modulation component, one end of the frequency modulation component being connected with the control module and the other end being connected with the stereo component.
According to some embodiments of the application, the audio module further comprises an audio power amplifier, one end of the audio power amplifier being connected to the stereo component and the other end being connected to the audio output component.
According to some embodiments of the application, the power supply module comprises a regulated power supply, one end of the regulated power supply is connected with the audio power amplifier, and the other end of the regulated power supply is connected with the control module.
According to some embodiments of the present application, the audio power amplifier is connected with the control module to receive a volume control signal of the control module.
According to some embodiments of the application, the audio input component comprises a bluetooth receiver for receiving the audio file via bluetooth.
According to some embodiments of the present application, further comprising a display module, the display module being connected with the control module.
According to some embodiments of the application, further comprising a socket part through which the control module is connected with the power supply module.
According to some embodiments of the application, the control module is an AU7840 chip.
Drawings
The accompanying drawings are included to provide a further understanding of the technical solutions of the present invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the present invention for explaining the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.
FIG. 1 is a schematic structural diagram of a car audio device according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a stereo component of a car audio device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a frequency modulation component of a vehicle-mounted audio device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an audio power amplifier of a vehicle-mounted audio device according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a Bluetooth receiver of a car audio device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an audio power amplifier of a car audio device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the present embodiments of the present application, preferred embodiments of which are illustrated in the accompanying drawings, wherein the description is provided for the purpose of visually supplementing the description and enabling the understanding of each and every feature and every aspect of the present application, and not for the purpose of limiting the scope of the present application.
In the description of the present application, if there are first and second descriptions for distinguishing technical features, the description should not be interpreted as indicating or implying any relative importance or implying any number of indicated technical features or implying any precedence over indicated by the indicated technical features.
In the description of the present application, unless otherwise specifically limited, terms such as set, installed, connected and the like should be understood broadly, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific contents of the technical solutions.
The embodiment of the application provides vehicle-mounted audio equipment which comprises a power supply module, an audio module, a control module and a voltage stabilizing module, wherein the power supply module is used for supplying power, the audio module comprises an audio input component used for receiving input of an audio file and an audio output component used for outputting an audio signal, the control module is connected with the audio module, and the control module is used for analyzing the audio file into the audio signal and outputting the audio signal to the audio output component; voltage stabilizing module one end is connected with control module, and the other end is connected with power module, according to the technical scheme of this application, is provided with voltage stabilizing module in order to adjust the voltage between power module and the control module to can reduce the influence of circuit to on-vehicle audio equipment, thereby reach the purpose that improves on-vehicle audio equipment's stability.
The embodiments of the present application will be further explained with reference to the drawings.
Referring to fig. 1, an embodiment of the present application provides a vehicle-mounted audio device, including a power supply module, an audio module, a control module, and a voltage stabilizing module, where the power supply module is configured to supply power, the audio module includes an audio input component configured to receive an input of an audio file and an audio output component configured to output an audio signal, the control module is connected to the audio module, and the control module is configured to parse the audio file into an audio signal and output the audio signal to the audio output component; one end of the voltage stabilizing module is connected with the control module, and the other end of the voltage stabilizing module is connected with the power supply module.
It can be understood that the control module is connected with the audio module, when the automobile is in a music playing state, the audio input component in the audio module obtains an audio file and transmits the audio file to the control module, the control module analyzes the audio file to obtain an audio signal, and the control module transmits the audio signal to the audio output component, so that the purpose of playing the audio file can be achieved. Voltage stabilizing module one end is connected with control module, and the other end is connected with power module, that is to say, is provided with voltage stabilizing module between power module and control module, accelerates suddenly or slows down suddenly when the car, and power module's voltage changes, owing to be provided with voltage stabilizing module, can reduce power module's voltage variation to control module's operating voltage's influence to can reach the purpose that improves vehicle audio equipment's stability.
It should be noted that the power supply module refers to any power supply module inside an automobile in the related art, the audio input component may be a component using any transmission method in the related art, for example, transmission is performed through bluetooth, WIFI or wired transmission, and the like, which is not specifically limited herein, the audio output component may be any sounding component, i.e., a speaker, and the voltage stabilizing module may be a linear regulator, for example, an AS1117 low dropout regulator, an HT7533 three-terminal low-power consumption high-voltage regulator, an RT9166 linear regulator, a 78L05 three-terminal integrated regulator, and the like.
It should be further noted that the control module may be any control module in the related art, as long as the control module can perform an action of parsing the audio file to obtain the audio signal, so as to transmit the audio signal to the audio output component for playing, and the control module is not specifically limited herein.
Referring to fig. 2, in one embodiment, the audio module further includes a stereo component, one end of which is connected to the control module and the other end of which is connected to the audio output component.
It is understood that stereo refers to sounds having a stereoscopic effect, the stereo component may be a TDA7313 component, circuits of the stereo component are shown in fig. 2, the stereo component is connected to the control module, the circuits of stereo receive the output audio signal MP3_ R and the output audio signal MP3_ L from the control module, and the output audio signals are FL, FR, RR and RL respectively, FL represents a front left channel audio signal, FR represents a front right channel audio signal, RR represents a rear right channel audio signal, and RL represents a rear left channel audio signal, in a vehicle having the vehicle audio device, audio output components may be respectively disposed in four directions of the vehicle to respectively receive the audio signals output by the stereo component, so that the vehicle-mounted device can emit a stereo effect.
In the resistance member shown in fig. 2, R86, R6, R1, R2, R3, and R4 have the same resistance value, and R5 and R9 have the same resistance value and are larger than the resistance value of R86.
Referring to fig. 3, in one embodiment, the audio module further includes a frequency modulation component, one end of which is connected to the control module and the other end of which is connected to the stereo component.
It is to be understood that the frequency modulation component refers to a circuit component for frequency modulation in the related art, and is not limited in detail herein, and a circuit of the frequency modulation component is shown in fig. 3. One end of the frequency modulation component is connected with the control module, the other end of the frequency modulation component is connected with the stereo component, in the audio playing state, a signal of the control module is transmitted to the frequency modulation component, a left audio signal RADIO _ L and a right audio signal RADIO _ R are obtained through the frequency modulation component and then input into a circuit corresponding to the stereo component, and the frequency can be unified, so that the effect of improving the tone quality is achieved.
In one embodiment, the audio module further comprises an audio power amplifier, one end of the audio power amplifier is connected with the stereo component, and the other end of the audio power amplifier is connected with the audio output component.
It can be understood that the audio power amplifier refers to any power amplifier in the related art, such as YD1028 power amplifier, TDA7388 power amplifier, TDA7377 power amplifier, and the like, where one end of the audio power amplifier is connected to the stereo component, and the other end of the audio power amplifier is connected to the audio output component, that is, a stereo signal output by the stereo component passes through the audio power amplifier and then is output by the audio output component, so as to achieve the effect of amplifying audio.
It should be noted that, when the audio signal input to the stereo component is obtained after frequency modulation, the audio power amplifier can reduce audio distortion of the audio signal obtained after amplification, thereby achieving the purpose of improving audio quality.
In one embodiment, the power supply module comprises a regulated power supply, one end of the regulated power supply is connected with the audio power amplifier, and the other end of the regulated power supply is connected with the control module.
It can be understood that the regulated power supply refers to any regulated power supply in the related art, when the voltage or the load at the power supply fluctuates instantaneously, the regulated power supply compensates the voltage amplitude at a response speed of 10-30ms, so that the voltage is stabilized within ± 2% of the original voltage, one end of the regulated power supply is connected with the audio power amplifier, and the other end of the regulated power supply is connected with the control module, that is, the regulated power supply respectively supplies power to the audio power amplifier and the control module, and the purpose of improving the stability of the vehicle-mounted audio equipment can be achieved.
It should be noted that, in the voltage stabilizing module, a voltage stabilizer may be further provided to be connected to the voltage stabilizing power supply, so that the voltage can be adjusted in a wider range, and the purpose of improving the stability of the vehicle-mounted audio device can be achieved.
In one embodiment, the audio power amplifier is connected to the control module to receive a volume control signal from the control module.
It can be understood that the control module controls the volume of the audio through a volume control signal, and specifically, the control module is connected to the audio power amplifier, the audio power amplifier amplifies the audio power, the audio power amplifier is connected to the audio output component, and the control module can transmit the volume control signal to the audio power amplifier to control the volume of the music played by the audio output component.
In an alternative embodiment, referring to fig. 4, the audio power amplifier is a TDA7377 power amplifier, and the audio ground of the audio power amplifier is as close as possible to an IC (Integrated Circuit Chip) Chip. The audio power amplifier receives the volume control signal MUTE-B2 transmitted from the control module, receives the stereo signals transmitted from the stereo component, and respectively outputs the stereo signals FL, FR, RL and RR to the audio output components SPEAKER corresponding to OUT1 to OUT4, so that the aim of adjusting the audio volume of the vehicle-mounted audio equipment according to the control module can be achieved.
In one embodiment, the audio input component includes a bluetooth receiver for receiving audio files via bluetooth.
It can be understood that the bluetooth receiver refers to any bluetooth receiver in the related art, and when the audio input component is in a receiving state, the bluetooth receiver receives the audio file in a wireless bluetooth manner, so that the purpose of improving the convenience of receiving the audio file can be achieved.
In another embodiment of the present application, a bluetooth connection is established and an audio file is sent to a vehicle-mounted audio device through a mobile phone or other communication devices with bluetooth transmission function, where the audio file may be an audio file in MP3 format, and the vehicle-mounted audio device receives the audio file through the bluetooth function of a bluetooth receiver.
Referring to fig. 6, in an embodiment, the apparatus further includes a display module, and the display module is connected to the control module.
It can be understood that the circuit structure of the control chip of the display module may be an HT1621 chip as shown in fig. 6, where the resistance of R612 is greater than the resistance of R611, the resistance of R614 is greater than the resistance of R616, the display module is connected to the control module, and the control module may set the light-emitting time of the display module to achieve the effect of a breathing lamp, so as to improve the ambience when playing audio, thereby making the vehicle-mounted audio device more humanized.
In another embodiment of the application, the display module is connected with the control module, and the control module analyzes the received audio file, so that the display module is controlled according to the audio file to be used as an atmosphere lamp during audio playing, and the vehicle-mounted audio equipment can be more humanized.
In another embodiment of the present application, the display module may be disposed at any position of the vehicle, and is not limited in particular. The display module can also select a TM75823 chip as a driving control chip of the display module.
In one embodiment, the power supply module further comprises a socket component, and the control module is connected with the power supply module through the socket component.
It can be understood that the socket component refers to any socket in the related art, the connection mode between the circuit of the control module and the circuit of the power supply module may be through the socket, that is, the control module is provided with a plug corresponding to the socket, so that the purpose of improving the convenience of connection can be achieved, and the modularized design can separate the vehicle-mounted audio device from the vehicle, so as to facilitate subsequent operations such as maintenance of the vehicle-mounted audio device.
In one embodiment, the control module is an AU7840 chip.
It can be understood that, because the voltage stabilizing module is arranged to balance the voltage value between the vehicle-mounted audio equipment and the vehicle-mounted audio equipment, the control module can be an AU7840 chip, thereby reducing the cost, reducing the signal interference and improving the stability of the control module.
Note that the Audio Ground (AGND) and the Digital Ground (DGND) in the AU7840 chip are to be separated independently.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. An in-vehicle audio apparatus characterized by comprising:
the power supply module is used for supplying power;
an audio module including an audio input part for receiving an audio file input and an audio output part for outputting an audio signal;
the control module is connected with the audio module and is used for analyzing the audio file into the audio signal and outputting the audio signal to the audio output component;
and one end of the voltage stabilizing module is connected with the control module, and the other end of the voltage stabilizing module is connected with the power supply module.
2. The in-vehicle audio device of claim 1, wherein the audio module further comprises a stereo component, the stereo component being connected to the control module at one end and to the audio output component at another end.
3. The car audio device of claim 2, wherein the audio module further comprises a frequency modulation component, one end of the frequency modulation component being connected to the control module and the other end of the frequency modulation component being connected to the stereo component.
4. The car audio device of claim 2, wherein the audio module further comprises an audio power amplifier, the audio power amplifier being connected to the stereo component at one end and to the audio output component at another end.
5. The vehicle audio equipment according to claim 4, wherein the power supply module comprises a regulated power supply, one end of the regulated power supply is connected with the audio power amplifier, and the other end of the regulated power supply is connected with the control module.
6. The car audio device of claim 4, wherein the audio power amplifier is connected to the control module to receive a volume control signal of the control module.
7. The in-vehicle audio apparatus according to claim 1, wherein the audio input means includes a bluetooth receiver for receiving the audio file by bluetooth.
8. The car audio device of claim 1, further comprising a display module, wherein the display module is connected to the control module.
9. The car audio apparatus according to claim 1, further comprising a socket part through which the control module is connected with the power supply module.
10. The car audio device of claim 1, wherein the control module is an AU7840 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221854200.XU CN217985376U (en) | 2022-07-18 | 2022-07-18 | Vehicle-mounted audio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221854200.XU CN217985376U (en) | 2022-07-18 | 2022-07-18 | Vehicle-mounted audio equipment |
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| CN217985376U true CN217985376U (en) | 2022-12-06 |
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| CN202221854200.XU Active CN217985376U (en) | 2022-07-18 | 2022-07-18 | Vehicle-mounted audio equipment |
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