Audio playing module and sound equipment

Abstract

The utility model discloses an audio playing module and sound equipment, the module comprises a substrate, a control board and a first tweeter, the control board and the first tweeter are arranged on the substrate, and a first woofer, a second tweeter and a second woofer are all arranged on the substrate. The control panel is used for decoding an input audio signal to form a left channel audio signal and a right channel audio signal; the left channel audio signals are respectively transmitted to the first tweeter and the first woofer after being subjected to frequency division processing and amplification, and the right channel audio signals are respectively transmitted to the second tweeter and the second woofer after being subjected to frequency division processing and amplification, so that the effect of playing stereophonic sound by one sound box is realized; and the substrate can be directly mounted on the wall, so that the influence of the bulkiness of the whole box body on embedded mounting is prevented, and the problems that the existing traditional sound equipment cannot be embedded into the wall for use and the stereo sound cannot be realized by one sound equipment are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of audio, and in particular to an audio playback module and a audio. Background Art

[0002] Traditional speakers are typically placed outside of a wall, either directly on the floor, on a table, or mounted on a wall. However, these speakers often protrude from the wall, failing to meet user needs for embedded speakers. Furthermore, existing speakers on the market cannot produce stereo sound, failing to meet user needs. Utility Model Content

[0003] The main purpose of the utility model is to provide an audio playback module and a speaker, which are used to solve the problem that the existing traditional speakers cannot be embedded in the wall for use and the problem that one speaker cannot achieve stereo sound.

[0004] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0005] An audio playback module includes a substrate, a first audio playback unit, a second audio playback unit, a control board, and an audio interface. The first audio playback unit and the second audio playback unit are symmetrically arranged. The first audio playback unit includes a first tweeter and a first woofer electrically connected to the control board. The second audio playback unit includes a second tweeter corresponding to the position of the first tweeter and a second woofer symmetrically positioned to the first woofer. The second tweeter, the second woofer, and the audio interface are all electrically connected to the control board. The first tweeter, the first woofer, the second tweeter, and the second woofer are all arranged on the substrate.

[0006] The audio interface is used for external devices; the control board is used to decode the audio signal input from the external device by the audio interface to form a left-channel audio signal and a right-channel audio signal, and to perform frequency division processing and amplification on the left-channel audio signal and transmit it to the first tweeter and the first woofer respectively; and to perform frequency division processing and amplification on the right-channel audio signal and transmit it to the second tweeter and the second woofer respectively.

[0007] Furthermore, the audio interface is an audio coaxial interface.

[0008] Furthermore, the control board is integrated with a first audio decoder electrically connected to the audio interface, a first electronic frequency division unit electrically connected to the first audio decoder, a first power amplifier electrically connected to the first electronic frequency division unit, and a first analog frequency division unit electrically connected to the first power amplifier. The number of the first analog frequency division units is four, and each of the first analog frequency division units is electrically connected to the first tweeter, the first woofer, the second tweeter, and the second woofer.

[0009] The first audio decoder is used to decode the audio signal transmitted by the audio interface to form a left-channel audio signal and a right-channel audio signal, and transmit the left-channel audio signal and the right-channel audio signal to the first electronic frequency division unit; the first electronic frequency division unit is used to electronically divide the left-channel audio signal to form a left-channel treble audio signal and a left-channel bass audio signal, and pass the left-channel treble audio signal and the left-channel bass audio signal through the first power amplifier and the first analog frequency division unit in sequence and play them through the first tweeter and the first woofer respectively; the first electronic frequency division unit is used to electronically divide the right-channel audio signal to form a right-channel treble audio signal and a right-channel bass audio signal, and pass the right-channel treble audio signal and the right-channel bass audio signal through the first power amplifier and the first analog frequency division unit in sequence and play them through the second tweeter and the second woofer respectively.

[0010] Furthermore, the control board is integrated with a second audio decoder electrically connected to the audio interface, a second electronic frequency division unit electrically connected to the second audio decoder, and a second power amplifier electrically connected to the second electronic frequency division unit, and the second power amplifier is electrically connected to the first tweeter, the first woofer, the second tweeter, and the second woofer respectively;

[0011] The second audio decoder is used to decode the audio signal transmitted by the audio interface to form a left-channel audio signal and a right-channel audio signal, and transmit the left-channel audio signal and the right-channel audio signal to the second electronic frequency division unit; the second electronic frequency division unit is used to electronically divide the left-channel audio signal to form a left-channel treble audio signal and a left-channel bass audio signal, and play the left-channel treble audio signal and the left-channel bass audio signal through the first tweeter and the first woofer respectively after passing through the second power amplifier; the second electronic frequency division unit is used to electronically divide the right-channel audio signal to form a right-channel treble audio signal and a right-channel bass audio signal, and play the right-channel treble audio signal and the right-channel bass audio signal through the second power amplifier respectively through the second tweeter and the second woofer.

[0012] Furthermore, the control board is further integrated with an inverter, and the audio interface is electrically connected to the first audio decoder via the inverter;

[0013] The inverter is used to enhance the audio signal inputted by the audio interface and transmit the enhanced audio signal to the first audio decoder.

[0014] Furthermore, the control board is integrated with a third audio decoder electrically connected to the audio interface, a third power amplifier electrically connected to the third audio decoder, and a third analog frequency division unit electrically connected to the third power amplifier. There are four third analog frequency division units, each of which is electrically connected to the first tweeter, the first woofer, the second tweeter, and the second woofer.

[0015] The third audio decoder is used to decode the audio signal transmitted by the audio interface to form a left-channel audio signal and a right-channel audio signal, which are then amplified by a third power amplifier and transmitted to the third analog frequency division unit. The third analog frequency division unit is used to perform analog frequency division on the left-channel audio signal to form a left-channel treble audio signal and a left-channel bass audio signal, and then play them through the first tweeter and the first woofer respectively; the third analog frequency division unit is used to perform electronic frequency division on the right-channel audio signal to form a right-channel treble audio signal and a right-channel bass audio signal, and then play them through the second tweeter and the second woofer respectively.

[0016] Furthermore, a first passive basin is provided on the substrate, and the first passive basin is located between the first tweeter and the second tweeter.

[0017] The utility model also provides a speaker, comprising a hollow box and the audio playback module as described above; an opening communicating with the interior is provided on one side surface of the box, the substrate is arranged at the opening of the box, the audio interface is arranged on the box, and the control board is arranged on the substrate.

[0018] Furthermore, a plurality of second passive basins are provided on the box body.

[0019] Furthermore, the base plate is provided with a plurality of limit columns on one side close to the inside of the box body, the limit columns are provided with a accommodating cavity, and the limit columns are provided with a limit guide port connected to the accommodating cavity; a locking member and a screw are provided on the base plate, the locking member includes a movable block movably arranged in the accommodating cavity and a limit block connected to the movable block, the limit block is at least partially located on the outside of the limit column, and the screw is connected to the movable block after passing through the base plate.

[0020] The present invention has the following beneficial effects: Compared to the prior art, the present invention configures a first tweeter, a first woofer, a second tweeter, and a second woofer on a substrate, and improves the configuration of a corresponding control board, so that the first audio playback module and the second audio playback module can play the left channel audio and the right channel audio respectively, thereby achieving a stereo effect of a single speaker. The first audio playback module and the second audio playback module are symmetrically positioned, the first tweeter and the second tweeter are symmetrically positioned, and the first woofer and the second woofer are symmetrically positioned, so that the played left channel audio and the right channel audio can be separated, and the stereo effect perceived by the user is improved. In addition, the substrate of this embodiment can be directly mounted on the wall, that is, a cavity can be opened in the wall to accommodate the audio playback module of this embodiment, so that the first tweeter, the first woofer, the second tweeter, and the second woofer can play better sound effects. The control board can be placed in the cavity or on the substrate to prevent the bulk of the entire cabinet from affecting embedded installation, thereby solving the problem that conventional speakers cannot be embedded in the wall and the problem that a single speaker cannot achieve stereo sound. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 It is a stereogram of the utility model speaker.

[0023] Figure 2 This is a three-dimensional diagram of the speaker from another perspective.

[0024] Figure 3 This is a partial exploded view of the speaker of the present invention.

[0025] Figure 4 It is a three-dimensional diagram of the audio playback module of the present invention.

[0026] Figure 5 This is a partial exploded view of the audio playback module of the present invention.

[0027] Figure 6 This is a circuit principle block diagram of the audio playback module of the utility model.

[0028] Figure 7 This is a partial circuit principle block diagram of another embodiment of the audio playback module of the present invention.

[0029] Figure 8 This is a partial circuit principle block diagram of another embodiment of the audio playback module of the present invention.

[0030] Figure 9 This is a circuit diagram of the electrical connection between the audio interface and the inverter of the utility model.

[0031] Figure 10 This is a circuit diagram of the first audio decoder of the present invention.

[0032] Figure 11 This is a circuit diagram of the first electronic frequency division unit of the present utility model.

[0033] Figure 12 This is a circuit diagram of the first power amplifier and the first analog frequency division unit of the utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Refer to the attached Figure 1-12 , an audio playback module 1 in an embodiment of the present utility model.

[0036] The audio playback module 1 includes a substrate 11, a first audio playback unit, a second audio playback unit, a control board 17 and an audio interface 23. The positions of the first audio playback unit and the second audio playback unit are symmetrical. The first audio playback unit includes a first tweeter 13 and a first woofer 12 electrically connected to the control board 17. The second audio playback unit includes a second tweeter 15 corresponding to the position of the first tweeter 13 and a second woofer 16 symmetrical to the position of the first woofer 12. The second tweeter 15, the second woofer 16 and the audio interface 23 are all electrically connected to the control board 17. The first tweeter 13, the first woofer 12, the second tweeter 15 and the second woofer 16 are all arranged on the substrate 11. The audio interface 23 is used for external devices; the control board 17 is used to decode the audio signal input from the external device by the audio interface 23 to form a left-channel audio signal and a right-channel audio signal, and to perform frequency division processing and amplification on the left-channel audio signal and transmit it to the first tweeter 13 and the first woofer 12 respectively, and to perform frequency division processing and amplification on the right-channel audio signal and transmit it to the second tweeter 15 and the second woofer 16 respectively.

[0037] The present invention configures a first tweeter 13, a first woofer 12, a second tweeter 15, and a second woofer 16 on a substrate 11 and further configures a corresponding control board 17, so that the first audio playback module 1 and the second audio playback module 1 respectively play left-channel audio and right-channel audio, thereby achieving a stereo effect of one speaker. The positions of the first audio playback module 1 and the second audio playback module 1 are symmetrical, the positions of the first tweeter 13 and the second tweeter 15 are symmetrical, and the positions of the first woofer 12 and the second woofer 16 are symmetrical, so that the played left-channel audio and right-channel audio can be separated, and the stereo effect felt by the user can be better. In addition, the substrate 11 of this embodiment can be directly mounted on the wall, that is, a cavity can be opened on the wall to cooperate with the audio playback module 1 of this embodiment, so that the first tweeter 13, the first woofer 12, the second tweeter 15 and the second woofer 16 can play better sound effects. The control board 17 can be set in the cavity or on the substrate 11 to prevent the bulkiness of the entire box 2 from affecting the embedded installation, so as to solve the problem that the existing traditional speakers cannot be embedded in the wall for use and the problem that one speaker cannot achieve stereo sound.

[0038] The present invention also uses the control board 17 to decode, divide and amplify the audio input from the external device via the audio interface 23, and then play it through the first tweeter 13, the first woofer 12, the second tweeter 15, and the second woofer 16. The audio playback module 1 of the present invention can be directly connected to the audio of the TV, computer, etc. for use without the need for an external audio decoder, power amplifier, frequency division unit or DSP digital processor, which is convenient for users to use.

[0039] Specifically, the base plate 11 can be fixed on the wall by screws and / or glue, and the external device can be a television, a computer, etc.

[0040] In one embodiment, the audio interface 23 is a coaxial audio interface. The coaxial audio interface 23 can be used to directly output the audio of the TV. Furthermore, the coaxial interface can be used with a converter to convert the coaxial audio interface 23 to an HDMI interface, an optical fiber interface, or the like, so that users can use the audio playback module 1 of the present invention in a wide range of applications.

[0041] In one embodiment, the control board 17 is integrated with a first audio decoder 171 electrically connected to the audio interface 23, a first electronic frequency division unit 172 electrically connected to the first audio decoder 171, a first power amplifier 173 electrically connected to the first electronic frequency division unit 172, and a first analog frequency division unit 174 electrically connected to the first power amplifier 173. There are four first analog frequency division units 174, and each of them is electrically connected to the first tweeter 13, the first woofer 12, the second tweeter 15, and the second woofer 16.

[0042] The first audio decoder 171 is configured to decode the audio signal transmitted from the audio interface 23 to form left and right channel audio signals, and transmit the left and right channel audio signals to the first electronic frequency division unit 172. The first electronic frequency division unit 172 is configured to electronically divide the left channel audio signal to form a left channel treble audio signal and a left channel woofer audio signal. The left channel treble audio signal and the left channel woofer audio signal are amplified by the first power amplifier 173, and then analog-divided by a first analog frequency division unit 174 before being played through the first tweeter 13 and the first woofer 12, respectively. The first electronic frequency division unit 172 is configured to electronically divide the right channel audio signal to form a right channel treble audio signal and a right channel woofer audio signal. The right channel treble audio signal and the right channel woofer audio signal are amplified by the first power amplifier 173, and then analog-divided by a first analog frequency division unit 174 before being played through the second tweeter 15 and the second woofer 16, respectively.

[0043] In the prior art, general audio frequency division only adopts one audio method, that is, either electronic frequency division or analog frequency division. Among them, the use of electronic frequency division for audio frequency division can achieve precise frequency division, making the audio played out later more flat, which leads to poor audio softness and signal smoothness. The use of analog frequency division for audio frequency division can improve the audio softness and signal smoothness after frequency division, and the sound played out is softer and smoother, but the frequency division accuracy is not enough for electronic frequency division. To this end, in this embodiment, the audio playback module 1 is configured with a first electronic frequency division unit and a first analog frequency division module to achieve precise frequency division while making the audio played out by the first tweeter 13, the first woofer 12, the second tweeter 15 and the second woofer 16 relatively soft, so as to better preserve the original sound effect, so as to solve the problem that the audio obtained by the existing audio system using electronic frequency division or analog frequency division cannot simultaneously meet the requirements of precise frequency division and better audio softness.

[0044] In one embodiment, the control board 17 also integrates an inverter 175, through which the audio interface 23 is electrically connected to the first audio decoder 171. The inverter 175 is used to amplify the audio signal input from the audio interface 23 and transmit the amplified audio signal to the first audio decoder 171. Because audio signals are attenuated during transmission through the audio line through the audio interface 23, the inverter 175 inverts the audio signal input from the audio input port twice, thereby amplifying the audio signal and restoring the audio signal input from the external device.

[0045] Specifically, the inverter 175 can use chips of models such as 74HC04D and 74LS04, the first decoder and the second decoder can both use chips of models such as AC6966B and AC6956, and the first electronic frequency division unit and the second electronic frequency division unit can use chips of models such as JL7018 and JL7012. The chip models of the first decoder, the second decoder, the first electronic frequency division unit and the second electronic frequency division unit are not limited here.

[0046] The audio interface 23 and the inverter 175 can be referred to as Figure 9 The circuit diagram of the first audio decoder 171 can be referred to P1 and U9 in FIG. Figure 10 U5, the first electronic frequency division unit can be referred to Figure 11 In U3, the first power amplifier 173 reference Figure 12 The first analog frequency division module in U2 can refer to Figure 12 The dotted box part (the right part of U2).

[0047] Of course, in other embodiments, the audio playback module 1 of the present invention may only use electronic frequency division to divide the audio signal. The specific structure is as follows:

[0048] The control board 17 integrates a second audio decoder 171a electrically connected to the audio interface 23, a second electronic crossover unit 172a electrically connected to the second audio decoder 171a, and a second power amplifier 173a electrically connected to the second electronic crossover unit 172a. The second power amplifier 173a is electrically connected to the first tweeter 13, the first woofer 12, the second tweeter 15, and the second woofer 16, respectively. The second audio decoder 171a decodes the audio signal transmitted from the audio interface 23 to generate left and right channel audio signals, and transmits these signals to the second electronic crossover unit 172a. The second electronic crossover unit 172a electronically divides the left channel audio signal to generate a left channel treble audio signal and a left channel woofer audio signal. The left channel treble audio signal and the left channel woofer audio signal are then played through the first tweeter 13 and the first woofer 12, respectively, after passing through the second power amplifier 173a. The second electronic frequency division unit 172a is used to electronically divide the right channel audio signal to form a right channel treble audio signal and a right channel bass audio signal, and play the right channel treble audio signal and the right channel bass audio signal through the second tweeter 15 and the second woofer 16 respectively after passing through the second power amplifier 173a.

[0049] In other embodiments, the audio playback module 1 of the present invention may only use analog frequency division to divide the audio signal. The specific structure is as follows:

[0050] The control board 17 integrates a third audio decoder 171b electrically connected to the audio interface 23, a third power amplifier 172b electrically connected to the third audio decoder 171b, and a third analog frequency divider 173b electrically connected to the third power amplifier 172b. There are four third analog frequency dividers 173b, each electrically connected to the first tweeter 13, the first woofer 12, the second tweeter 15, and the second woofer 16. The third audio decoder 171b decodes the audio signal transmitted from the audio interface 23 to generate left and right channel audio signals, which are then amplified by the third power amplifier 172b and transmitted to the third analog frequency divider 173b. The third analog frequency divider 173b then performs analog frequency division on the left channel audio signal to generate left channel treble audio signals and left channel woofer audio signals, which are then played through the first tweeter 13 and the first woofer 12, respectively. The third analog frequency division unit 173b is used to electronically divide the right channel audio signal to form a right channel treble audio signal and a right channel bass audio signal, and then play them through the second tweeter 15 and the second woofer 16 respectively.

[0051] In one embodiment, a first passive basin 14 is further provided on the substrate 11 . The first passive basin 14 is located between the first tweeter 13 and the second tweeter 15 . The first passive basin 14 can enhance the low-frequency effect and improve the sound quality.

[0052] Based on the audio playback module 1 of any of the above embodiments, the present invention further provides a speaker.

[0053] Specifically, the speaker comprises a hollow housing 2 and an audio playback module 1 as described in any of the above embodiments. An opening 22 is provided on one side of the housing 2, communicating with the interior. A substrate 11 is disposed at the opening 22 of the housing 2. An audio interface 23 is disposed on the housing 2, and a control board 17 is disposed on the substrate 11. In this embodiment, mounting the audio playback module 1 on the housing 2 creates a standalone speaker that can be easily moved around.

[0054] The first audio decoder 171, the first electronic frequency divider 172, the first power amplifier 173, the first analog frequency divider 174, and the inverter 175 can all be located on the same circuit board, i.e., the control board 17 is a single circuit board. Of course, in other embodiments, the first audio decoder 171, the first electronic frequency divider 172, the first power amplifier 173, the first analog frequency divider 174, and the inverter 175 can be located on two separate circuit boards, i.e., the control board 17 is comprised of two circuit boards. The housing 2 is also provided with a power interface 24 electrically connected to the control board 17. After receiving a power source, the power interface 24 converts the input power into a suitable voltage via a power module to power the inverter 175, the first audio decoder 171, the first electronic frequency divider, and the first power amplifier 173.

[0055] In one embodiment, a plurality of second passive basins 21 are provided on the box body 2. The second passive basins 21 can be used to further increase the space for movement. When the first tweeter 13, the first woofer 12, the second tweeter 15 and the second woofer 16 are in use, the low-frequency effect can be further enhanced and the sound quality can be improved.

[0056] In one embodiment, the substrate 11 is provided with a plurality of limiting posts 18 on one side close to the interior of the box body 2. The limiting posts 18 are provided with a receiving cavity 181, and the limiting posts 18 are provided with a limiting guide opening 182 connected to the receiving cavity 181. A locking member and a screw 10 are provided on the substrate 11. The locking member includes a movable block 19 movably provided in the receiving cavity 181 and a limiting block 191 connected to the movable block 19. The limiting block 191 is at least partially located on the outside of the limiting post 18. The screw passes through the substrate 11 and is connected to the movable block 19. The opening 22 of the limiting guide opening 182 is oriented toward a position away from the center of the opening 22. When the substrate 11 is assembled to the box body 2, the limiting block 191 abuts against the peripheral side of the opening 22 of the box body 2 to fix the substrate 11 on the box body 2. When the user needs to remove the substrate 11 from the box body 2, by tightening the screw, the limit block 191 cannot rotate under the action of the limit guide opening 182, that is, in the process of tightening the screw, the limit block 191 and the movable block 19 will move along the length direction of the limit guide opening 182 and move in the direction away from the substrate 11, so that the box body 2 and the substrate 11 are loosened. When the limit block 191 is placed outside the limit guide opening 182, continue to tighten the screw to allow the limit block 191 to rotate with the screw, thereby allowing the limit block 191 to move away from the peripheral side of the opening 22 of the box body 2, that is, the limit block 191 is not opposite to the peripheral side of the opening 22 of the box body 2. At this time, the substrate 11 can be removed from the box body 2, conversely, the substrate 11 can be installed on the box body 2.

[0057] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0058] In addition, the descriptions of "first", "second", etc. in this utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An audio playback module, characterized in that: The device comprises a substrate, a first audio playback unit, a second audio playback unit, a control board, and an audio interface. The first audio playback unit and the second audio playback unit are symmetrically arranged. The first audio playback unit includes a first tweeter and a first woofer electrically connected to the control board. The second audio playback unit includes a second tweeter corresponding to the position of the first tweeter and a second woofer symmetrical to the position of the first woofer. The second tweeter, the second woofer, and the audio interface are all electrically connected to the control board. The first tweeter, the first woofer, the second tweeter, and the second woofer are all arranged on the substrate. The audio interface is used for external devices; the control board is used to decode the audio signal input from the external device by the audio interface to form a left-channel audio signal and a right-channel audio signal, and to perform frequency division processing and amplification on the left-channel audio signal and transmit it to the first tweeter and the first woofer respectively; and to perform frequency division processing and amplification on the right-channel audio signal and transmit it to the second tweeter and the second woofer respectively.

2. The audio playback module according to claim 1, characterized in that The audio interface is an audio coaxial interface.

3. The audio playback module according to claim 1, characterized in that The control board is integrated with a first audio decoder electrically connected to the audio interface, a first electronic frequency division unit electrically connected to the first audio decoder, a first power amplifier electrically connected to the first electronic frequency division unit, and a first analog frequency division unit electrically connected to the first power amplifier. There are four first analog frequency division units, each of which is electrically connected to the first tweeter, the first woofer, the second tweeter, and the second woofer. The first audio decoder is used to decode the audio signal transmitted by the audio interface to form a left-channel audio signal and a right-channel audio signal, and transmit the left-channel audio signal and the right-channel audio signal to the first electronic frequency division unit; the first electronic frequency division unit is used to electronically divide the left-channel audio signal to form a left-channel treble audio signal and a left-channel bass audio signal, and pass the left-channel treble audio signal and the left-channel bass audio signal through the first power amplifier and the first analog frequency division unit in sequence and play them through the first tweeter and the first woofer respectively; the first electronic frequency division unit is used to electronically divide the right-channel audio signal to form a right-channel treble audio signal and a right-channel bass audio signal, and pass the right-channel treble audio signal and the right-channel bass audio signal through the first power amplifier and the first analog frequency division unit in sequence and play them through the second tweeter and the second woofer respectively.

4. The audio playback module according to claim 3, characterized in that: The control board is further integrated with an inverter, and the audio interface is electrically connected to the first audio decoder via the inverter; The inverter is used to enhance the audio signal inputted by the audio interface and transmit the enhanced audio signal to the first audio decoder.

5. The audio playback module according to claim 1, characterized in that: The control board is integrated with a second audio decoder electrically connected to the audio interface, a second electronic frequency division unit electrically connected to the second audio decoder, and a second power amplifier electrically connected to the second electronic frequency division unit, wherein the second power amplifier is electrically connected to the first tweeter, the first woofer, the second tweeter, and the second woofer respectively; The second audio decoder is used to decode the audio signal transmitted by the audio interface to form a left-channel audio signal and a right-channel audio signal, and transmit the left-channel audio signal and the right-channel audio signal to the second electronic frequency division unit; the second electronic frequency division unit is used to electronically divide the left-channel audio signal to form a left-channel treble audio signal and a left-channel bass audio signal, and play the left-channel treble audio signal and the left-channel bass audio signal through the first tweeter and the first woofer respectively after passing through the second power amplifier; the second electronic frequency division unit is used to electronically divide the right-channel audio signal to form a right-channel treble audio signal and a right-channel bass audio signal, and play the right-channel treble audio signal and the right-channel bass audio signal through the second power amplifier respectively through the second tweeter and the second woofer.

6. The audio playback module according to claim 1, characterized in that: The control board is integrated with a third audio decoder electrically connected to the audio interface, a third power amplifier electrically connected to the third audio decoder, and a third analog frequency division unit electrically connected to the third power amplifier. There are four third analog frequency division units, each of which is electrically connected to the first tweeter, the first woofer, the second tweeter, and the second woofer. The third audio decoder is used to decode the audio signal transmitted by the audio interface to form a left-channel audio signal and a right-channel audio signal, which are then amplified by a third power amplifier and transmitted to a third analog frequency division unit. The third analog frequency division unit is used to perform analog frequency division on the left-channel audio signal to form a left-channel treble audio signal and a left-channel woofer audio signal, which are then played through the first tweeter and the first woofer respectively. The third analog frequency division unit is used to electronically divide the right channel audio signal to form a right channel treble audio signal and a right channel bass audio signal, and then play them through the second tweeter and the second woofer respectively.

7. The audio playback module according to claim 1, characterized in that: A first passive basin is further provided on the substrate, and the first passive basin is located between the first tweeter and the second tweeter.

8. A sound system, characterized in that: It comprises a hollow box and an audio playback module as described in any one of claims 1 to 7; an opening communicating with the interior is provided on one side surface of the box, the substrate is arranged at the opening of the box, the audio interface is arranged on the box, and the control board is arranged on the substrate.

9. The sound system according to claim 8, characterized in that A plurality of second passive basins are arranged on the box body.

10. The sound system according to claim 8, characterized in that The base plate is provided with a plurality of limit posts on one side close to the interior of the box body, the limit posts are provided with an accommodating cavity, and the limit posts are provided with a limit guide port connected to the accommodating cavity; a locking member and a screw are provided on the base plate, the locking member includes a movable block movably arranged in the accommodating cavity and a limit block connected to the movable block, the limit block is at least partially located on the outside of the limit post, and the screw is connected to the movable block after passing through the base plate.

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