Control circuit with karaoke and education dual modes and sound box

Abstract

The utility model discloses a control circuit with karaoke and education dual modes and a sound box. The control circuit comprises a first transmitting module, a second transmitting module, a control module, a playing module electrically connected with the control module, and a switching circuit electrically connected with the control module. The first transmitting module is suitable for transmitting a first audio signal to the control module in real time; the second transmitting module is suitable for transmitting a second audio signal to the control module in real time; the control module is suitable for receiving a first audio signal of the first transmitting module and transmitting the first audio signal to the playing module to play the first audio signal; the control module is also suitable for receiving a second audio signal of the second transmitting module and transmitting the second audio signal to the playing module to play the second audio signal; the switching circuit is also suitable for switching the playing sound effect of the playing module. According to the utility model, the two modes of karaoke and education can be freely switched to adapt to different use scenes, thereby facilitating selective use of a user.

Description

Technical field:

[0001] The utility model relates to the technical field of audio and wireless communication, in particular to a control circuit and a speaker with karaoke and education dual modes. Background technology:

[0002] A speaker refers to a device that can convert audio signals into sound. In layman's terms, it refers to a speaker main box or a subwoofer box with a power amplifier. The audio signal is amplified and then played back by the speaker itself to make the sound louder. The speaker is the terminal of the entire audio system. Its function is to convert audio electrical energy into corresponding sound energy and radiate it into space. It is an extremely important component of the audio system and is responsible for converting electrical signals into sound signals for direct human hearing. The speaker is an important component for converting audio signals into sound, and is also an essential component for creating various sound effects.

[0003] Speakers come in various shapes and sizes, from the original large vertical speakers to bookshelf speakers, floor-standing speakers, the popular small portable speakers and bone conduction speakers. Speakers can be divided into floor-standing, wall-mounted and built-in types according to their placement. The design of speakers is also gradually developing towards diversification and personalization. Modern speakers not only focus on sound performance, but also attach great importance to functionality.

[0004] In schools, training institutions and other scenarios, speakers are often needed for teaching and lecturing. During major festivals and events, speakers are also required to have entertainment attributes and be able to sing karaoke, watch movies and other functions. However, the common speakers currently available generally have karaoke functions but not educational functions, or have educational functions but not karaoke functions. The functions are relatively simple and cannot achieve "two uses in one box".

[0005] For example, the Chinese utility model patent application with patent announcement number CN213813581353U discloses a classroom speaker, which includes: a speaker body, a cabinet for storing the speaker body, and a lecture table fixedly connected to the cabinet, one side of the cabinet is fixedly connected to the lecture table, a cavity is provided inside the cabinet, and the cavity is provided with at least three groups; the three groups of cavities are provided with a power supply, a motor, a movable plate, a push rod, a threaded rod, a fixed plate and a speaker body, the bottom end of the speaker body is fixedly connected to the upper end surface of the fixed plate; a cover plate is inlaid on the top of the cabinet; a drawer and a movable door are provided at one end of the lecture table near the cabinet door, and a storage cavity for placing the cover plate is provided on the lecture table at the position of the movable door, and a switch for controlling the motor is installed at the position of the storage cavity on one side of the cabinet. The classroom speaker can meet the use needs of teachers.

[0006] However, this existing classroom speaker has the following shortcomings due to its own structural design characteristics:

[0007] 1. The microphone is connected to the chassis via wired connection. Not only is the moving distance of the wired microphone quite limited, but there is also the problem of wire entanglement. At the same time, the microphone needs to be held in hand for a long time during class, which will limit the user's hand movement and cause hand soreness, causing many inconveniences during use.

[0008] 2. It only has the function of educational amplification, with a single sound effect and a single function. It can meet the needs of teachers, but does not support karaoke and education dual modes.

[0009] In view of this, the inventor proposes the following technical solution. Utility model content:

[0010] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a control circuit and a speaker with karaoke and education dual modes.

[0011] In order to solve the above technical problems, the utility model adopts the following technical solutions: a control circuit and a speaker with karaoke and education dual modes, comprising: a first transmitting module, a second transmitting module, a control module, a playing module electrically connected to the control module, and a switching circuit electrically connected to the control module;

[0012] The first transmitting module is adapted to transmit a first audio signal to the control module in real time;

[0013] The second transmitting module is adapted to transmit a second audio signal to the control module in real time;

[0014] The control module is adapted to receive the first audio signal from the first transmitting module and transmit the first audio signal to the playing module to play the first audio signal;

[0015] The control module is also adapted to receive the second audio signal from the second transmitting module and transmit the second audio signal to the playing module to play the second audio signal;

[0016] The switching circuit is suitable for switching the control module to receive the first audio signal or the second audio signal, and the switching circuit is also suitable for switching the playing sound effect of the playing module;

[0017] The first transmitting module, the second transmitting module, the control module, the playing module and the switching circuit are all integrated in the sound box.

[0018] Furthermore, in the above technical solution, the control module is provided with a first receiving module and a second receiving module respectively, the first receiving module is suitable for receiving and converting a first audio signal, and the second receiving module is suitable for receiving and converting a second audio signal.

[0019] Furthermore, in the above technical solution, the switching circuit includes a first switching button for switching the playback mode and a second switching button for switching the playback sound effect.

[0020] Furthermore, in the above technical solution, the playback module includes an audio power amplifier chip, a first speaker and a second speaker, and an input end of the audio power amplifier chip is electrically connected to the control module.

[0021] Furthermore, in the above technical solution, the control circuit with dual modes of karaoke and education also includes a power module, the power module is electrically connected to the switching circuit, and the power module is suitable for powering the control circuit with dual modes of karaoke and education.

[0022] Furthermore, in the above technical solution, the frequency band of the first audio signal is 2.4G; the frequency band of the second audio signal is U band.

[0023] A speaker, characterized in that it comprises the control circuit with karaoke and education dual modes in the above scheme.

[0024] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: in the utility model, the first transmitting device and the second transmitting device are equipped, and the control module can wirelessly receive the first audio signal transmitted by the first transmitting device and the second audio signal transmitted by the second transmitting device in real time. On the basis of the existing classroom speakers, the wire body entanglement and other problems of the wired microphone are solved, and there are two modes: in one mode, the control module receives the second audio signal transmitted by the second transmitting device, that is, the U-segment handheld wireless microphone mode, the handheld wireless microphone has thick low and medium frequencies, and this mode is more suitable for singing entertainment; in another mode, the control module receives the first audio signal transmitted by the first transmitting device, the 2.4G head-mounted wireless microphone mode, the head-mounted wireless microphone has bright high and medium frequencies, and this mode can free both hands for teaching. They are adapted to different usage scenarios respectively, which is convenient for users to use selectively. Description of the drawings:

[0025] Figure 1 This is a principle block diagram of a control circuit with karaoke and education dual modes provided by the utility model;

[0026] Figure 2 It is a hardware structure diagram of a control circuit with karaoke and education dual modes provided by the utility model. Specific implementation method:

[0027] The utility model is further described below in conjunction with specific embodiments and drawings.

[0028] See Figure 1 to Figure 2As shown, a control circuit and a speaker with karaoke and education dual modes include: a first transmitting module 10, a second transmitting module 20, a control module 30, a playback module 40 electrically connected to the control module 30, and a switching circuit 50 electrically connected to the control module 30;

[0029] The first transmitting module 10 is adapted to transmit a first audio signal to the control module 30 in real time;

[0030] The second transmitting module 20 is adapted to transmit a second audio signal to the control module 30 in real time;

[0031] The control module 30 is adapted to receive the first audio signal of the first transmitting module 10 and transmit the first audio signal to the playing module 40 to play the first audio signal;

[0032] The control module 30 is also adapted to receive the second audio signal from the second transmitting module 20 and transmit the second audio signal to the playing module 40 to play the second audio signal;

[0033] The switching circuit 50 is adapted to switch the control module 30 to receive the first audio signal or the second audio signal, and the switching circuit 50 is also adapted to switch the playing sound effect of the playing module 40;

[0034] The first transmitting module 10, the second transmitting module 20, the control module 30, the playing module 40 and the switching circuit 50 are all integrated in the sound box.

[0035] In one embodiment of the utility model, the first transmitting device 10 is a 2.4G head-mounted wireless microphone, and the first receiving module 310 is a 2.4G head-mounted wireless microphone receiving module, which can support hands-free operation and meet the needs of education and teaching. The 2.4G head-mounted wireless microphone has a bright high frequency and is more suitable for educational lectures. In another embodiment of the utility model, the second transmitting device 20 is a U-segment handheld microphone, and the second receiving module 320 is a U-segment handheld microphone receiving module. The frequency band of the U-segment handheld microphone is medium and low frequency, and the thick medium and low frequency is more suitable for singing and entertainment.

[0036] In the utility model, a first transmitting device 10 and a second transmitting device 20 are equipped, and a control module 30 can wirelessly receive the first audio signal transmitted by the first transmitting device 10 and the second audio signal transmitted by the second transmitting device 20 in real time. On the basis of the existing classroom speakers, the wired microphone wire entanglement and other problems are solved, and there are two modes: in one mode, the control module 30 receives the second audio signal transmitted by the second transmitting device 20, that is, the U-segment handheld wireless microphone mode, the handheld wireless microphone has thick low and medium frequencies, and this mode is more suitable for singing entertainment; in another mode, the control module 30 receives the first audio signal transmitted by the first transmitting device 10, the 2.4G head-mounted wireless microphone mode, the head-mounted wireless microphone has bright high and medium frequencies, and this mode can free both hands for teaching. It is suitable for different usage scenarios respectively. It is convenient for users to use selectively.

[0037] The control module 30 is provided with a first receiving module 310 and a second receiving module 320 , respectively. The first receiving module 310 is adapted to receive and convert a first audio signal, and the second receiving module 320 is adapted to receive and convert a second audio signal.

[0038] The switching circuit 50 includes a first switching button 510 for switching the play mode and a second switching button 520 for switching the play sound effect.

[0039] The playing module 40 includes an audio power amplifier chip 430 , a first speaker 410 and a second speaker 420 . The input end of the audio power amplifier chip 430 is electrically connected to the control module 30 .

[0040] The control circuit with dual modes of karaoke and education also includes a power module 60, which is electrically connected to the switching circuit 50. The power module 60 is suitable for supplying power to the control circuit with dual modes of karaoke and education.

[0041] The frequency band of the first audio signal is 2.4G; the frequency band of the second audio signal is U band.

[0042] A sound box, characterized in that the sound box comprises the control circuit with karaoke and education dual modes as described in the above scheme.

[0043] In summary, the utility model is equipped with a first transmitting device 10 and a second transmitting device 20, and the control module 30 can wirelessly receive the first audio signal transmitted by the first transmitting device 10 and the second audio signal transmitted by the second transmitting device 20 in real time. On the basis of the existing classroom speakers, the wired microphone's line winding and other problems are solved, and there are two modes: in one mode, the control module 30 receives the second audio signal transmitted by the second transmitting device 20, that is, the U-segment handheld wireless microphone mode, the handheld wireless microphone has a thick low-frequency, and this mode is more suitable for singing entertainment; in another mode, the control module 30 receives the first audio signal transmitted by the first transmitting device 10, the 2.4G head-mounted wireless microphone mode, the head-mounted wireless microphone has a bright high-frequency, and this mode can free both hands for teaching. Adapt to different usage scenarios respectively. Convenient for users to use selectively.

[0044] The use method and working principle of the utility model are as follows: a U-segment wireless microphone receiving module and a 2.4G wireless microphone receiving module are respectively arranged in the speaker, and a U-segment handheld wireless microphone and a 2.4G head-mounted wireless microphone are arranged outside the speaker. After the speaker is turned on, the U-segment wireless microphone receiving module and the 2.4G wireless microphone receiving module can be cyclically selected to be turned on or off by short pressing the first switching button 510 once. After turning on, the default is to turn on the 2.4G wireless microphone receiving module and turn off the U-segment wireless microphone receiving module. At this time, short press the first switching button 510 to turn off the 2.4G wireless microphone receiving module and turn on the U-segment wireless microphone receiving module; further, short press the first switching button 510 again to turn off the 2.4G wireless microphone receiving module and the U-segment wireless microphone receiving module; short press the first switching button 510 for the third time to turn on the 2.4G wireless microphone receiving module and the U-segment wireless microphone receiving module at the same time. When in the U-segment handheld wireless microphone mode, there are four sound effects, namely music sound effects, educational sound effects, karaoke sound effects and movie sound effects. By short pressing the second switch button 520, you can cycle through different sound effect scenes. When in the 2.4G head-mounted wireless microphone mode, you can free your hands. This mode is also equipped with four sound effects, namely music sound effects, educational sound effects, karaoke sound effects and movie sound effects. By short pressing the second switch button 520, you can cycle through different sound effect scenes. When working, the 2.4G wireless microphone receiving module and the U-segment wireless microphone receiving module receive the corresponding wireless signals respectively, and after decoding, send them to the audio power amplifier chip 430 for amplification and then drive the first speaker 410 or the second speaker 420 to play.

[0045] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A control circuit with karaoke and education dual modes, characterized in that: include: A first transmitting module (10), a second transmitting module (20), a control module (30), a playback module (40) electrically connected to the control module (30), and a switching circuit (50) electrically connected to the control module (30); The first transmitting module (10) is suitable for transmitting a first audio signal to the control module (30) in real time; The second transmitting module (20) is suitable for transmitting a second audio signal to the control module (30) in real time; The control module (30) is adapted to receive the first audio signal from the first transmitting module (10) and transmit the first audio signal to the playing module (40) to play the first audio signal; The control module (30) is also suitable for receiving the second audio signal from the second transmitting module (20) and transmitting the second audio signal to the playing module (40) for playing the second audio signal; The switching circuit (50) is suitable for switching the control module (30) to receive the first audio signal or the second audio signal, and the switching circuit (50) is also suitable for switching the playback sound effect of the playback module (40); The first transmitting module (10), the second transmitting module (20), the control module (30), the playing module (40) and the switching circuit (50) are all integrated in the sound box.

2. A control circuit with karaoke and education dual modes according to claim 1, characterized in that: The control module (30) is provided with a first receiving module (310) and a second receiving module (320), respectively; the first receiving module (310) is suitable for receiving and converting a first audio signal, and the second receiving module (320) is suitable for receiving and converting a second audio signal.

3. A control circuit with karaoke and education dual modes according to claim 1, characterized in that: The switching circuit (50) comprises a first switching button (510) for switching the play mode and a second switching button (520) for switching the play sound effect.

4. A control circuit with karaoke and education dual modes according to claim 1, characterized in that: The playback module (40) comprises an audio power amplifier chip (430), a first speaker (410) and a second speaker (420), and an input end of the audio power amplifier chip (430) is electrically connected to the control module (30).

5. A control circuit with karaoke and education dual modes according to claim 1, characterized in that: The control circuit with dual modes of karaoke and education also includes a power module (60), the power module (60) is electrically connected to the switching circuit (50), and the power module (60) is suitable for supplying power to the control circuit with dual modes of karaoke and education.

6. A control circuit with karaoke and education dual modes according to claim 1, characterized in that: The frequency band of the first audio signal is 2.4G; the frequency band of the second audio signal is U band.

7. A sound box, characterized in that: The speaker includes the control circuit with karaoke and education dual modes as described in any one of claims 1-6.

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