CN209861096U

CN209861096U - Multi-functional plug-in card bluetooth karaoke stereo set PCBA board

Info

Publication number: CN209861096U
Application number: CN201921090577.0U
Authority: CN
Inventors: 赵天福
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2019-12-27
Anticipated expiration: 2029-07-12

Abstract

A PCBA board of a multifunctional card-inserting Bluetooth karaoke sound box relates to the technical field of sound boxes. The device comprises a support panel shell, a wireless microphone antenna interface, a 5V power input interface, a left sound channel loudspeaker interface, a right sound channel loudspeaker interface, a microphone volume and reverberation effect adjusting interface, a wireless microphone receiving frequency adjuster, an FM antenna, an external remote control signal input interface, an infrared receiving head, a TF card seat, a Bluetooth call microphone, a USB interface, an AUX IN audio input socket, a PCBA board, a left sound channel power amplifier, a right sound channel power amplifier, a wireless microphone audio operational amplifier, a wireless microphone receiving module, a microphone frequency control program storage unit, a Bluetooth antenna, a reverberation module, a Bluetooth module, an LED indicator lamp, a mode key, a next music/volume "+" key, a play pause key, a previous music/volume "-" key and an audio transmitting interface. The utility model has the advantages that: its reasonable in design has simple circuit, the function is many, small and the assembly process is simple, advantage such as with low costs.

Description

Multi-functional plug-in card bluetooth karaoke stereo set PCBA board

Technical Field

The utility model relates to a stereo set technical field, concretely relates to multi-functional plug-in card bluetooth karaoke stereo set PCBA board.

Background

The Bluetooth sound box is a built-in Bluetooth chip, replaces the sound box connected with a traditional audio wire in a Bluetooth connection mode, and is connected with Bluetooth playing equipment such as a mobile phone, a computer, an intelligent television, a tablet computer and the like to achieve the purpose of wirelessly transmitting music. The current Bluetooth sound technology is widely applied by virtue of the characteristics of convenience and practicability. The quartzy magic ball lamp stereo set of bluetooth on the market at present only has the function of broadcast music, does not have the function of singing karaoke, does not have wireless audio emission function, and the professional stereo set that present KTV used realizes wireless singing, needs wireless microphone to receive host computer, reverberation effector, power amplifier and audio amplifier etc. and constitutes, and is bulky, and the wire rod of connection is too many, and the circuit board also comprises a lot of blocks, and the circuit is complicated, need insert commercial power AC220V power supply, can't install in small-size bluetooth stereo set the inside.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a multi-functional plug-in card bluetooth karaoke stereo set PCBA board, its reasonable in design can install on the quartzy magic ball lamp stereo set of bluetooth and on miniature various bluetooth stereo sets can realize carrying out the function of karaoke with wireless microphone, effectively solve current quartzy magic ball lamp stereo set of bluetooth and small-size bluetooth stereo set function singleness, can not sing with wireless microphone and can not eliminate former singing (conversion vocal accompaniment/former singing), do not have wireless audio frequency transmitting function, can not realize the problem of wireless public address through other receivers or stereo sets with wireless mode, the utility model discloses it is simple to have function multicircuit simultaneously, advantages such as small and equipment simple process, greatly reduced the cost of realizing singing with wireless microphone.

In order to achieve the above purpose, the utility model adopts the following technical scheme: it comprises a support panel shell 1, a wireless microphone antenna interface 11, a 5V power input interface 12, a left sound channel speaker interface 13, a right sound channel speaker interface 14, a microphone volume and reverberation effect adjusting interface 15, a wireless microphone receiving frequency adjuster 16, an FM antenna 17, an external remote control signal input interface 18, an infrared receiving head 19, a TF card seat 191, a Bluetooth communication microphone 192, a USB interface 193, an AUX IN audio input socket 194, a PCBA board 2, a right sound channel power amplifier 21, a left sound channel power amplifier 22, a wireless microphone audio operational amplifier 23, a wireless microphone receiving module 24, a microphone frequency control program storage unit 25, a Bluetooth antenna 26, a reverberation module 27, a Bluetooth module 28, an LED indicator lamp 29, a mode key 30, a next music/volume "+" key 31, a play pause key 32, a previous music/volume "-" key 33, an audio emission interface 4, the bracket panel shell 1 is fixedly connected below a PCBA board 2, the bottom of the PCBA board 2 is provided with a wireless microphone antenna interface 11, the right side of the wireless microphone antenna interface 11 is provided with a 5V power input interface 12, a left sound channel horn interface 13, a right sound channel horn interface 14, a microphone volume and reverberation effect adjusting interface 15 is arranged below the left sound channel horn interface 13, the lower side of a wireless microphone receiving frequency adjuster 16 is fixedly connected with an FM radio antenna 17, the lower side of an external remote control signal input interface 18 is provided with an infrared receiving head 19, a Bluetooth communication microphone 192 is arranged between a TF card seat 191 and a USB interface 193, the right side of the USB interface 193 is provided with an AUX IN audio input socket 194, the PCBA board 2 is provided with a right sound channel power amplifier 21, the right side of the left sound channel 22 is connected with a wireless microphone audio operational amplifier 23 IN a soldering mode, a wireless microphone receiving module 24 is arranged above a microphone, the right side of the microphone frequency control program storage unit 25 is provided with a Bluetooth antenna 26, the left side of the Bluetooth module 28 is provided with a reverberation module 27, the right side of the LED indicator light 29 is provided with a mode key 30, the left side of the play pause key 32 is provided with a next music/volume "+" key 31, the right side of the play pause key 32 is provided with a previous music/volume "-" key 33, and the audio emission interface 4 is arranged on the right side of the microphone volume and reverberation effect adjusting interface 15.

The 5V power input interface 12 is a DC5V power input interface.

The 5V power input interface 12, the left channel speaker interface 13 and the right channel speaker interface 14 form an interface module 141.

The right channel power amplifier 21 and the left channel power amplifier 22 form a dual channel stereo power amplifier module 221.

The mode key 30, the next music/volume "+" key 31, the play pause key 32, and the previous music/volume "-" key 33 constitute a key module 331.

The utility model discloses a theory of operation: the bracket panel shell fixes the PCBA together through two screws with caps, 2 holes are formed IN the front panel and used for screwing screws to be fixed on the sound, a Bluetooth chip is arranged IN a Bluetooth module on the PCBA, the Bluetooth chip can receive Bluetooth audio signals of equipment such as a mobile phone, a television, a computer, a tablet computer and the like, the Bluetooth module has an FM radio function, a Bluetooth communication function, a TF card and a USB flash disk decoding function, and an AUX IN audio input function, and accompanying music can be played IN one mode. The receiving circuit with the wireless microphone is used for receiving the sound signal of the wireless microphone, the frequency selection and adjustment of a recorded frequency control program are carried out through a frequency adjuster by a wireless microphone receiving module and a storage unit, the frequency of the wireless microphone is matched with the frequency of the wireless microphone, the receiving module circuit receives a high-frequency radio signal transmitted by the wireless microphone in a pilot frequency mode, the high-frequency radio signal is decoded and restored through the receiving module to simulate an audio signal, the sound signal is amplified through an operational amplifier, the sound signal is transmitted to a reverberation module for sound effect processing, the high-frequency radio signal is connected to a left sound channel power amplifier and a right sound channel power amplifier to amplify the singing voice and accompanying music in a mixing way, the music and singing voice are sent out through a connected loudspeaker, the original singing (converting the accompanying singing/original singing) can be eliminated by one key for 1.5 seconds by pressing the mode key, so that, the original sound can be recovered by pressing the mode key for 1.5 seconds, the next song/volume plus key can be switched by pressing the song/volume plus key for a short time, the volume can be increased by pressing the song/volume plus key for a long time, the previous song/volume minus key can be switched to be pressed for a short time, and the volume can be reduced by pressing the previous song/volume minus key for a long time. The external audio transmitting module can transmit music or singing sound played by the main machine in a radio mode, as long as other receivers or sound devices with the same frequency in a transmitting signal receiving range can synchronously receive the sound played by the main machine, the main machine can play the music or singing, the auxiliary machines (namely the receivers or receiving sound devices with the same frequency) can synchronously play the same sound, wiring is avoided between the main machine sound device and the auxiliary machine sound devices, the multiple sound devices can synchronously send the same sound to achieve the sound amplification effect of multiple loudspeakers, each independent auxiliary machine sound device can send the sound through sound amplification after the sound is decoded and restored through the frequency matching of the receiving module in a mode of receiving radio signals, no electric wire is required to be connected between the main machine sound device and the auxiliary machine sound devices, and no electric wire is required to be connected between the auxiliary machine sound devices and the auxiliary machine sound devices, and the multiple auxiliary machines and the main machine can be connected to send the same sound. And the number of the auxiliary machines is not limited, so long as the frequency of the receiving module of the auxiliary machine sound is the same as the frequency transmitted by the main machine in the signal receiving range, the sound can be received.

After the technical scheme is adopted, the utility model discloses beneficial effect does: its reasonable in design can install on the quartzy magic ball lamp stereo set of bluetooth and on miniature various bluetooth sound can realize carrying out the function of karaoke with wireless microphone, effectively solve current quartzy magic ball lamp stereo set of bluetooth and small-size bluetooth sound function singleness, can not sing with wireless microphone and can not eliminate the former song (conversion vocal accompaniment/former song), do not have wireless audio frequency emission function, can not realize the problem of wireless public address with wireless mode through other receivers or stereo sets, the utility model discloses it is simple to have function multicircuit simultaneously, advantages such as small and assembly process are simple, greatly reduced realize with the cost that wireless microphone sings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the top of a PCBA board 2 according to the present invention;

FIG. 2 is a schematic view of the bottom of the PCBA board 2 of the present invention;

fig. 3 is a schematic structural diagram of the connection between the middle bracket panel shell 1 and the PCBA board 2 of the present invention.

Description of reference numerals: a support panel shell 1, a wireless microphone antenna interface 11, a 5V power input interface 12, a left sound channel horn interface 13, a right sound channel horn interface 14, an interface module 141, a microphone volume and reverberation effect adjusting interface 15, a wireless microphone receiving frequency adjuster 16, an FM antenna 17, an external remote control signal input interface 18, an infrared receiving head 19, a TF card seat 191, a Bluetooth communication microphone 192, a USB interface 193, an AUX IN audio input socket 194, a PCBA board 2, a right sound channel power amplifier 21, a left sound channel power amplifier 22, a dual-sound channel stereo module 221, a wireless microphone audio operational amplifier 23, a wireless microphone receiving module 24, a microphone frequency control program storage unit 25, a Bluetooth antenna 26, a reverberation module 27, a Bluetooth module 28, an LED indicator lamp 29, a mode key 30, a next music/volume "+" key 31, a play pause key 32, a previous music/volume "-" key 33, A key module 331 and an audio transmitting interface 4.

Detailed Description

Referring to fig. 1 to fig. 3, the technical solution adopted by the present embodiment is: it is composed of a support panel shell 1, a wireless microphone antenna interface 11, a 5V power input interface 12, a left sound channel speaker interface 13, a right sound channel speaker interface 14, a microphone volume and reverberation effect adjusting interface 15, a wireless microphone receiving frequency adjuster 16, an FM antenna 17, an external remote control signal input interface 18, an infrared receiving head 19, a TF card seat 191, a Bluetooth communication microphone 192, a USB interface 193, an AUX IN audio input socket 194, a PCBA board 2, a right sound channel power amplifier 21, a left sound channel power amplifier 22, a wireless microphone audio operational amplifier 23, a wireless microphone receiving module 24, a microphone frequency control program storage unit 25, a Bluetooth antenna 26, a reverberation module 27, a Bluetooth module 28, an LED indicator lamp 29, a mode key 30, a next music/volume "+" key 31, a play pause key 32, a previous music/volume "-" key 33 and an audio emission interface 4, the bracket panel shell 1 is fixedly connected below a PCBA board 2, the bottom of the PCBA board 2 is provided with a wireless microphone antenna interface 11, the right side of a 5V power supply input interface 12 is provided with a left sound channel horn interface 13, a right sound channel horn interface 14, a microphone volume and reverberation effect adjusting interface 15 is arranged below the left sound channel horn interface 13, the bottom of a wireless microphone receiving frequency adjuster 16 is fixedly connected with an FM antenna 17, the lower part of an external remote control signal input interface 18 is provided with an infrared receiving head 19, the right side of the infrared receiving head 19 is provided with a TF card seat 191, a Bluetooth communication microphone 192 is arranged between the TF card seat 191 and a USB interface 193, the right side of the USB interface 193 is provided with an AUX IN audio input socket 194, the AUXIN audio input socket 194 can be changed into a wire microphone interface, the PCBA board 2 is connected with a right sound channel power amplifier 21 and a left sound channel power amplifier 22, the right side of a, a microphone frequency control program storage unit 25 is soldered below the wireless microphone receiving module 24, a Bluetooth antenna 26 is arranged at the right side of the microphone frequency control program storage unit 25, a reverberation module 27 is arranged at the left side of a Bluetooth module 28, a mode key 30 is fixedly connected at the right side of an LED indicator light 29, the original sound can be eliminated after long pressing for 1.5 seconds, the original sound can be recovered after long pressing for 1.5 seconds again, a next music/volume "+" key 31 is arranged at the right side of the mode key 30, the next music/volume can be switched to the previous one after short pressing, the volume can be increased by long pressing, a play pause key 32 is arranged at the right side of the next music/volume "+" key 31, a music/volume "-" key 33 is arranged at the right side of the play pause key 32, the short pressing can be switched to the previous one, the volume can be reduced by long pressing, an audio transmitting interface 4 is arranged at the right side of a microphone volume and reverberation effect adjusting interface 15, and the sound of the played music or singing machine can be transmitted in, as long as other receivers with the same frequency in the transmitting signal receiving range can synchronously receive the sound played by the main machine, the main machine can play music or sing, the auxiliary machines (namely the receivers with the same frequency or the receiving sound machines) can synchronously play the same sound, the main machine and the auxiliary machine can synchronously send the same sound to achieve the sound amplification effect of multiple loudspeakers without wiring between the main machine sound and the auxiliary machine sound machines, each independent auxiliary machine sound machine is used for receiving radio signals, decoding and restoring the sound through the frequency matching of the receiving module and then sending the sound through sound amplification, any wire connection is not needed between the main machine sound machine and the auxiliary machine sound machine, and the auxiliary machine and the main machine can be connected to send the same sound without any wire connection between the auxiliary machine sound machine and the auxiliary machine sound machine. And the number of the auxiliary machines is not limited, so long as the frequency of the receiving module of the auxiliary machine sound is the same as the frequency transmitted by the main machine in the signal receiving range, the sound can be received. (the audio transmitting module connected with the audio transmitting interface of the host is a small-sized transmitting station, and the receiver or the sound of the auxiliary set is equivalent to a plurality of radios without quantity limitation in receiving sound signals), it has the advantages of realizing the wireless transmission of audio and the function of wireless sound amplification, and the transmitting frequency can be set between 160 and 960MHZ through a burning control program. The method has the advantages that the sound is not delayed, the interference is less in the frequency range of 470-960MHz in the UHF band, and the sound quality of the transmitted audio is very good.

The 5V power input interface 12 is a DC5V power input interface.

The 5V power input interface 12, the left channel speaker interface 13 and the right channel speaker interface 14 are arranged together to form an interface module 141.

The right channel power amplifier 21 and the left channel power amplifier 22 are arranged to form a dual channel stereo power amplifier module 221.

The settings of the mode key 30, the next music/volume "+" key 31, the play pause key 32, and the previous music/volume "-" key 33 constitute a key module 331.

The audio transmitting interface (4) and an external transmitting module form an audio transmitting module.

The AUX IN audio input socket (194) is an external audio input interface.

The utility model discloses a theory of operation: the PCBA is fixed together through two cap screws by a bracket panel shell, 2 holes are formed IN the panel and used for fixing screws on a sound box, a Bluetooth chip is arranged IN a Bluetooth module on the PCBA, the Bluetooth chip can receive Bluetooth audio signals of equipment such as a mobile phone, a television, a computer and a tablet personal computer, the Bluetooth module has an FM radio function, a Bluetooth communication function, a TF card and a U disk decoding function, and an AUX IN audio input function, and accompanying music can be played IN one mode. The receiving circuit with the wireless microphone is used for receiving the sound signal of the wireless microphone, the frequency selection and adjustment of a recorded frequency control program are carried out through a frequency adjuster by a wireless microphone receiving module and a storage unit, the frequency of the wireless microphone is matched with the frequency of the wireless microphone, the receiving module circuit receives a high-frequency radio signal transmitted by the wireless microphone in a pilot frequency mode, the high-frequency radio signal is decoded and restored through the receiving module to simulate an audio signal, the sound signal is amplified through an operational amplifier, the sound signal is transmitted to a reverberation module for sound effect processing, the high-frequency radio signal is connected to a left sound channel power amplifier and a right sound channel power amplifier to amplify the singing voice and accompanying music in a mixing way, the music and singing voice are sent out through a connected loudspeaker, the original singing (converting the accompanying singing/original singing) can be eliminated by one key for 1.5 seconds by pressing the mode key, so that, the original singing sound can be recovered by pressing the mode key for 1.5 seconds, the next song/volume plus key can be switched by pressing the song/volume plus key for a short time, the volume can be increased by pressing the song/volume plus key for a long time, the previous song/volume minus key can be switched to be switched by pressing the previous song/volume minus key for a short time, and the volume can be reduced by pressing the previous song/volume minus key for a long time. The external audio transmitting module can transmit music or singing sound played by the local machine in a radio mode, so long as other receivers with the same frequency in a transmitting signal receiving range can synchronously receive the sound played by the local machine, the main machine can play the music or singing, the auxiliary machines (receivers with the same frequency or receiving sound) can synchronously play the same sound, wiring-free between the main machine sound and the auxiliary machine sound can also achieve the effect that a plurality of sound machines synchronously send the same sound to achieve the sound amplification effect of a plurality of loudspeakers, each independent auxiliary machine sound machine is in a radio signal receiving mode, the sound is decoded and restored through the frequency matching of the receiving module and then sent through sound amplification, no electric wire connection is needed between the main machine sound machine and the auxiliary machine sound machine, and no electric wire connection is needed between the auxiliary machine sound machine and the auxiliary machine sound machine to connect the plurality of auxiliary machines and the main machine to send the same sound. And the number of the auxiliary machines is not limited, so long as the frequency of the receiving module of the auxiliary machine sound is the same as the frequency transmitted by the main machine in the signal receiving range, the sound can be received.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a multi-functional plug-in card bluetooth karaoke stereo set PCBA board which characterized in that: the microphone comprises a support panel shell (1), a wireless microphone antenna interface (11), a DC5V power input interface (12), a left sound channel horn interface (13), a right sound channel horn interface (14), a microphone volume and reverberation effect adjusting interface (15), a wireless microphone receiving frequency adjuster (16), an FM radio antenna (17), an external remote control signal input interface (18), an infrared receiving head (19), a TF card seat (191), a Bluetooth call microphone (192), a USB interface (193), an AUX IN audio input socket (194), a PCBA board (2), a right sound channel power amplifier (21), a left sound channel power amplifier (22), a wireless microphone audio operational amplifier (23), a wireless microphone receiving module (24), a microphone frequency control program storage unit (25), a Bluetooth antenna (26), a reverberation module (27), a Bluetooth module (28), an LED indicator lamp (29), A mode key (30), a next bend/volume '+' key (31), a play pause key (32), a previous bend/volume '-' key (33) and an audio emission interface (4), wherein a support panel shell (1) is fixedly connected below a PCBA board (2), the bottom of the PCBA board (2) is provided with a wireless microphone antenna interface (11), the right side of the wireless microphone antenna interface (11) is provided with a 5V power input interface (12), a left sound channel horn interface (13) and a right sound channel horn interface (14), a microphone volume and reverberation effect adjusting interface (15) is arranged below the left sound channel horn interface (13), an FM antenna (17) is fixedly connected below a wireless microphone receiving frequency regulator (16), an infrared receiving head (19) is arranged below an external remote control signal input interface (18), and a Bluetooth communication microphone (192) is arranged between a TF card seat (191) and a USB interface (193), the right side of the USB interface (193) is provided with an AUX IN audio input socket (194), the top of the PCBA board (2) is provided with a right channel power amplifier (21), the right side of the left channel power amplifier (22) is connected with a wireless microphone audio operational amplifier (23) IN a soldering way, a wireless microphone receiving module (24) is arranged above a microphone frequency control program storage unit (25), and the right side of the microphone frequency control program storage unit (25) is provided with a Bluetooth antenna (26), the left side of the Bluetooth module (28) is provided with a reverberation module (27), the right side of the LED indicator light (29) is provided with a mode key (30), the left side of the play pause key (32) is provided with a next music/volume "+" key (31), the right side of the play pause key (32) is provided with a previous music/volume "-" key (33), and the audio emission interface (4) is arranged on the right side of the microphone volume and reverberation effect adjusting interface (15).

2. The PCBA board of the multifunctional card-inserting Bluetooth karaoke sound box of claim 1, wherein: the 5V power input interface (12) is a DC5V power input interface.

3. The PCBA board of the multifunctional card-inserting Bluetooth karaoke sound box of claim 1, wherein: the 5V power input interface (12), the left sound channel loudspeaker interface (13) and the right sound channel loudspeaker interface (14) form an interface module (141).

4. The PCBA board of the multifunctional card-inserting Bluetooth karaoke sound box of claim 1, wherein: the right sound channel power amplifier (21) and the left sound channel power amplifier (22) form a dual-sound-channel stereo power amplifier module (221).

5. The PCBA board of the multifunctional card-inserting Bluetooth karaoke sound box of claim 1, wherein: the mode key (30), the next music/volume '+' key (31), the play pause key (32) and the previous music/volume '-' key (33) form a key module (331).

6. The PCBA board of the multifunctional card-inserting Bluetooth karaoke sound box of claim 1, wherein: the audio transmitting interface (4) and an external transmitting module form an audio transmitting module.

7. The PCBA board of the multifunctional card-inserting Bluetooth karaoke sound box of claim 1, wherein: the AUX IN audio input socket (194) is an external audio input interface.