Multifunctional sound box

Abstract

The utility model provides a multifunctional sound box, which comprises a sound box main body, the side surface of the sound box main body is provided with a control key, the sound box main body is internally provided with a main control unit, and the main control unit is electrically connected with at least one loudspeaker through a power amplifier unit; the sound box main body is provided with a playing port corresponding to the loudspeaker, and one side of the playing port is provided with a foldable mobile terminal support; the pedometer is arranged in the sound box main body; and the pedometer is electrically connected to the main control unit. Through the design of the foldable mobile terminal support, the sound box is physically bound with equipment such as a mobile phone and a tablet computer, the integrated control capability of a user on audio and video contents is improved, the functional attribute of the sound box serving as a mobile terminal sound field extension medium is expanded, and the practicability is improved.

Description

Technical Field

[0001] This application relates to the field of audio equipment technology, and in particular to a multi-functional speaker. Background Technology

[0002] A speaker is a device that converts audio signals into sound. In simpler terms, it refers to a speaker enclosure or subwoofer enclosure that has a built-in power amplifier that amplifies the audio signal before the speaker itself reproduces the sound, making it louder.

[0003] 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, responsible for converting electrical signals into sound signals for direct listening by the human ear.

[0004] Existing speaker devices have limited functionality and can no longer meet consumer needs. Especially with the widespread adoption of mobile devices (such as smartphones and tablets), existing speakers fail to attract consumer attention, significantly reducing consumer loyalty. Therefore, this invention proposes a multi-functional speaker to at least partially address the problems inherent in the existing technology. Utility Model Content

[0005] In view of the aforementioned problems, this application is made in order to provide a multi-functional speaker that overcomes or at least partially solves the aforementioned problems.

[0006] One embodiment of this application discloses a multi-functional speaker, including: a speaker body with control buttons on its side and a main control unit inside it, wherein the main control unit is electrically connected to at least one speaker through a power amplifier unit;

[0007] The speaker body is provided with a playback port corresponding to the speaker, and a foldable mobile terminal bracket is provided on one side of the playback port;

[0008] It also includes a pedometer installed inside the speaker body; the pedometer is electrically connected to the main control unit.

[0009] Optionally, the mobile terminal support includes: a base integrally formed with the speaker body;

[0010] The support arm has one end rotatably connected to the base and the other end rotatably connected to a magnetic chuck.

[0011] Optionally, the upper end of the base is provided with a fixing plate;

[0012] A rotating disk that is rotatably embedded in the fixed disk;

[0013] The rotating disk is connected to a first connector on its side; and a second connector is connected to a magnetic chuck.

[0014] The support arm has its two ends connected to the first connector and the second connector respectively by screws.

[0015] Optionally, the outer periphery of the surface of the magnetic chuck is provided with a ring of magnets.

[0016] Optionally, a support plate is also included, on which the magnetic chuck is attached or embedded.

[0017] Optionally, it also includes a crossover unit, wherein the loudspeaker includes a low-frequency loudspeaker, a mid-frequency loudspeaker, and a high-frequency loudspeaker;

[0018] The low-frequency speaker, mid-frequency speaker, and high-frequency speaker are electrically connected to the power amplifier unit through the crossover unit.

[0019] Optionally, the main control unit further includes a processor module and an audio processing module;

[0020] The processor module and the audio processing module are electrically connected;

[0021] The audio processing module is electrically connected to the power supply unit, audio input unit, LED display unit, human-computer interaction unit, and power amplifier unit.

[0022] The audio input unit is electrically connected to a Bluetooth module.

[0023] Optionally, the crossover unit and the power amplifier unit, the low-frequency speaker, the intermediate-frequency speaker and the high-frequency speaker form a low-frequency circuit, an intermediate-frequency circuit and a high-frequency circuit;

[0024] The high-frequency circuit includes: a high-frequency loudspeaker, the first end of which is electrically connected in sequence to a first frequency divider capacitor and a first frequency divider resistor, and the second end of which is electrically connected to the power amplifier unit along with the first frequency divider resistor;

[0025] The intermediate frequency circuit includes: an intermediate frequency loudspeaker, the first end of which is electrically connected in sequence to a second crossover capacitor, a first crossover inductor, and a second crossover resistor, and the second end of which and the second crossover resistor are electrically connected to the power amplifier unit;

[0026] The low-frequency circuit includes: a low-frequency speaker, the first end of which is electrically connected to the power amplifier unit through a first crossover inductor, and the second end of which is electrically connected to the power amplifier unit, and a third crossover capacitor is electrically connected between the first end and the second end.

[0027] Optionally, the pedometer includes a smart motion module;

[0028] The processor module is electrically connected to the intelligent motion module and is used to receive the three-dimensional acceleration information of the human body collected by the pedometer, convert it into an audio signal and output it to the speaker.

[0029] This application has the following advantages:

[0030] In the embodiments of this application, a speaker body is provided with control buttons on its side and a main control unit is provided inside. The main control unit is electrically connected to at least one speaker through a power amplifier unit. The speaker body is provided with a playback port corresponding to the speaker, and a foldable mobile terminal bracket is provided on one side of the playback port. It also includes a pedometer disposed inside the speaker body. The pedometer is electrically connected to the main control unit. Through the foldable mobile terminal bracket design, the speaker is physically bound to devices such as mobile phones and tablets, improving the user's integrated control over audio and video content. By integrating the pedometer inside the speaker, it can be used as a sports speaker, automatically counting steps when exercising outdoors. It can have multiple functions, including sports step counting, mobile terminal bracket, and speaker. This not only expands the speaker's functional attributes as a sound field extension medium for mobile terminals and enhances user stickiness in various scenarios, but also further enriches the application scenarios. Attached Figure Description

[0031] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of a multifunctional speaker provided in one embodiment of this application;

[0033] Figure 2 This is a three-dimensional structural schematic diagram of another multifunctional speaker provided in an embodiment of this application;

[0034] Figure 3 This is a first-view structural schematic diagram of a multifunctional speaker provided in an embodiment of this application;

[0035] Figure 4 This is a second-view structural diagram of a multifunctional speaker provided in one embodiment of this application;

[0036] Figure 5 This is a schematic diagram of the folded structure of a mobile terminal bracket for a multifunctional speaker provided in one embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the external structure of a multi-speaker speaker provided in an embodiment of this application;

[0038] Figure 7 This is a schematic diagram of the internal circuit structure module of a multi-functional speaker provided in one embodiment of this application;

[0039] Figure 8 This is a schematic diagram of the circuit structure of a multi-functional speaker including a crossover unit, according to an embodiment of this application.

[0040] Figure 9 This is a circuit diagram of an intelligent motion module for a multifunctional speaker provided in one embodiment of this application;

[0041] Figure 10 This is a circuit diagram of a processor module for a multi-functional speaker provided in one embodiment of this application. Detailed Implementation

[0042] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0043] Reference Figures 1 to 6 This illustration shows a multi-functional speaker according to an embodiment of this application, comprising: a speaker body 101, with control buttons 103 on its side and a main control unit 300 inside, the main control unit 300 being electrically connected to at least one speaker 332 via a power amplifier unit 331; a playback port 102 corresponding to the speaker on the speaker body 101, and a foldable mobile terminal bracket on one side of the playback port 102; wherein the mobile terminal bracket includes: a base 201 integrally formed with the speaker body 101; a support arm 202, one end of which is rotatably connected to the base 201, and the other end of which is rotatably connected to a magnetic chuck 203, the bracket being rotatably adjustable in direction via the rotatable base 201; and a pedometer disposed inside the speaker body 101; the pedometer being electrically connected to the main control unit 300.

[0044] In this application, a foldable mobile terminal stand physically binds the speaker to devices such as mobile phones and tablets, enhancing users' integrated control over audio and video content, expanding the speaker's functional attributes as a sound field extension medium for mobile terminals, and strengthening user engagement in various scenarios. Through the linkage design between the side control button 103 and the main control unit 300, users can directly adjust core functions such as volume and switch modes without operating the mobile terminal, reducing the jarring feeling of frequent switching between devices and meeting the needs of instant interaction. The foldable stand adopts a mechanical storage structure, achieving stable support for the terminal device without increasing its size. The foldability of the stand is directly related to space saving and portability, thereby enhancing product appeal. The aforementioned magnetic suction cup 203 enables magnetic connection to the mobile phone, facilitating device removal and placement. By integrating a pedometer inside the speaker, it can be used as a sports speaker, automatically counting steps during outdoor activities, thus combining multiple functions as a pedometer, mobile terminal stand, and speaker, further enriching its application scenarios.

[0045] It should be noted that the magnetic chuck 203 can be used in conjunction with a metal sheet, for example, by attaching the metal sheet to the back of a mobile phone or tablet with double-sided tape; for some mobile devices that can be wirelessly charged, since they have magnetic components inside, it is not necessary to attach a metal sheet to the back of the device, and they can be used directly.

[0046] The following will further describe a multi-functional speaker in various exemplary embodiments of this application.

[0047] In the embodiments of this application, in the above-mentioned multifunctional speaker, the upper end of the base 201 is provided with a fixed plate 206; a rotating plate 207 is rotatably embedded in the fixed plate 206; a first connecting member 204 is connected to the side of the rotating plate 207; a second connecting member 205 is connected to a magnetic suction cup 203; the support arm 202 has its two ends connected to the first connecting member 204 and the second connecting member 205 respectively by screws. Figure 4 and Figure 5 As shown, when the mobile terminal bracket is not in use, it can be folded to reduce its space occupation. In this application, the base 201 can also be embedded into the multi-functional speaker, so that when folded, the mobile terminal bracket can be exposed outside the speaker body 101 as little as possible or not at all. The support arm 202 is provided with a recessed structure, so that when folded, the fixed plate 206 and the rotating plate 207 can be in the recessed position, which can further save space when folded. In addition, the rotating plate 207 and the fixed plate 206 are connected by a rotating structure, so that the mobile terminal bracket can be adjusted in direction.

[0048] In the embodiments of this application, a magnet array ring 209 is arranged on the outer periphery of the surface of the magnetic chuck 203; as Figure 2As shown, the system also includes a support plate 208, with the magnetic chuck 203 attached to or embedded in the support plate 208. An electromagnetic coil for wireless charging can also be installed within the magnetic chuck, electrically connected to a power unit 301 within the speaker body 101. This structure allows the speaker to function as both a support and a wireless charging device. Furthermore, the support plate 208 prevents insufficient magnetic force from causing the magnetic chuck to adhere properly.

[0049] In the embodiments of this application, such as Figure 7 and Figure 8 As shown, the main control unit also includes a processor module and an audio processing module; the processor module and the audio processing module are electrically connected; the audio processing module is electrically connected to the power supply unit 301, the audio input unit 302, the LED display unit 304, the human-computer interaction unit 305, and the power amplifier unit 331; wherein, the audio input unit 302 is electrically connected to a Bluetooth module, so that in addition to having a normal wired connection, it can also be used as a wireless Bluetooth speaker.

[0050] Furthermore, it also includes a crossover unit, and the speaker 332 includes a low-frequency speaker, a mid-frequency speaker and a high-frequency speaker; the low-frequency speaker, the mid-frequency speaker and the high-frequency speaker are electrically connected to the power amplifier unit 331 through the crossover unit.

[0051] As an example, such as Figure 7 As shown, the LED display unit 304 includes an LED light, which is electrically connected to an LED driver. The LED driver is electrically connected to the main control unit 300. The audio processing module of the main control unit 300 is mainly composed of an audio processing chip, preferably the AB5301 chip from Zhongke Lanxun. The LED display unit 304 may also include an LED digital tube. The audio input unit 302 may include a flash memory module for storing audio files; an SD interface for accessing audio via an SD memory card; and interfaces such as HDMI. The human-computer interaction unit 305 includes an infrared module, a microphone module, and control buttons 103. The audio output unit may also include a line output, for example, for connecting headphones or other external speakers. The power supply unit 301 provides power to the various components. For example, it includes overvoltage and overcurrent protection to prevent excessive voltage or current when connected to an external power source or during charging, ensuring the safety of the device. It also includes charging management, a lithium battery, and boost and buck modules.

[0052] It should be noted that since lithium batteries are generally powered by 3.7V, while audio components may operate between 3.3V and 12V, and may require multiple voltages, such as 3.3V and 5V, it is necessary to boost the 3.7V supplied by the battery and then buck-regulate it to ensure a stable power supply.

[0053] In this application, by using an upper crossover unit and low-frequency, mid-frequency, and high-frequency speakers, the speaker can perform well at full-range output, solving the problem that existing speakers have limited operating frequency bands, poor performance outside their suitable frequency bands, and are prone to audio distortion. For example, when playing music, there may be bass (such as bass drum and bass sound) and treble (such as soprano sound). If only a low-frequency speaker is used in the speaker, the treble part may be distorted, which may result in a poor user experience. However, in this application, by using low-frequency, mid-frequency, and high-frequency speakers, the speaker can perform well in treble, mid-range, and bass frequencies.

[0054] Furthermore, the crossover unit and the power amplifier unit, the low-frequency speaker, the mid-frequency speaker, and the high-frequency speaker form a low-frequency circuit, a mid-frequency circuit, and a high-frequency circuit. The high-frequency circuit includes: a high-frequency speaker, whose first end is sequentially electrically connected to a first crossover capacitor C81 and a first crossover resistor R81, and whose second end and the first crossover resistor R81 are electrically connected to the power amplifier unit 331. The mid-frequency circuit includes: a mid-frequency speaker, whose first end is sequentially electrically connected to a second crossover capacitor C82, a first crossover inductor L81, and a second crossover resistor R82, and whose second end and the second crossover resistor R82 are electrically connected to the power amplifier unit 331. The low-frequency circuit includes: a low-frequency speaker, whose first end is electrically connected to the power amplifier unit 331 through a first crossover inductor L81, and whose second end is electrically connected to the power amplifier unit 331, with a third crossover capacitor C83 electrically connected between its first end and its second end.

[0055] In this application, the first frequency divider resistor R81 is preferably 2.2Ω, the second frequency divider resistor R82 is preferably 1Ω, the first frequency divider capacitor C81 is preferably 0.2μF, the second frequency divider capacitor C82 is preferably 4.6μF, the third frequency divider capacitor C83 is preferably 10μF, the first frequency divider inductor L81 is preferably 0.2mH, and the second frequency divider inductor L82 is preferably 1.5mH. In the low-frequency speaker, the 1.5mH second frequency divider inductor L82 first passes through, which has the characteristic of passing low frequencies and blocking high frequencies (here, the 1.5mH inductor is chosen to have a certain effect on the mid-frequency). There is a certain degree of obstruction. The third crossover capacitor C83 has the characteristic of passing high frequencies (and also mid-frequency frequencies here) and blocking low frequencies. This allows the mid-frequency frequencies to be filtered out by the third crossover capacitor C83 and the second crossover inductor L82, preventing them from entering the low-frequency speaker. In the mid-frequency speaker, because the resistor has the characteristic of blocking low frequencies, the mid-frequency and high-frequency frequencies can pass through. Then, the high-frequency frequencies are blocked and filtered by the first crossover inductor L81, allowing the mid-frequency frequencies to be coupled to the mid-frequency speaker through the second crossover capacitor C82. The high-frequency frequencies of the high-frequency speaker follow the same principle and will not be described further.

[0056] It should be noted that in an audio system, low frequencies are also called bass, mid frequencies are called mid-range frequencies, and high frequencies are called treble frequencies. That is, the low frequency range is 20Hz to 160Hz (3rd harmonic); the mid frequency range is 160Hz to 2500Hz (4th harmonic); and the high frequency range is 2500Hz to 20000Hz (3rd harmonic). It should also be noted that due to the principle of the structure of the loudspeaker itself, a single loudspeaker cannot operate in full-range mode. For example, a mid-range loudspeaker, which operates in a low-frequency or high-frequency environment (with a low-frequency or high-frequency input signal), can produce sound, but its sound performance is not good enough, and its sound distortion is too high, which affects the audiovisual experience.

[0057] In embodiments of this application, a pedometer (not shown in the figure) is also included, disposed inside the speaker body; the pedometer includes an intelligent motion module; the main control unit further includes a processor module and an audio processing module; the processor module is electrically connected to the audio processing module; the processor module is electrically connected to the intelligent motion module, and is used to receive human three-dimensional acceleration information collected by the pedometer, convert it into an audio signal, and output it to the speaker. Figure 9As shown, the intelligent motion module includes an accelerometer and an analog-to-digital converter (ADC). The preferred accelerometer chip is MS3029, and the preferred ADC chip is MC6C227 or MC6C228. Of course, the accelerometer and ADC can be replaced with chips or analog-to-digital circuits with similar functions. The MS3029 chip is connected to the MC6C227 chip, and the MC6C227 chip is electrically connected to the processor module. The MS3029 chip sends human motion information to pin 5 of the MC6C227 chip via the SDI port of pin 2, and sends a clock signal to pin 6 of the MC6C227 chip via the SCLK port of pin 12. The MC6C227 chip receives the human motion information and clock signal from the MS3029 chip, and performs data analysis and processing through its internal processor. It converts the human motion information and clock signal into digital signals with high and low levels, and connects to the processor module via I2C_SCL (pin 2), STED_OUT (pin 3), and I2C_SDA (pin 7).

[0058] Furthermore, the accelerometer is either a three-dimensional accelerometer capable of simultaneously acquiring three-dimensional acceleration information of the human body in three orthogonal directions, or a combination of several one-dimensional accelerometers capable of acquiring acceleration information in a single direction. This pedometer allows the speaker to function as a portable sports speaker, enabling step counting while exercising; for example, it can play music and count steps simultaneously while running or walking.

[0059] The aforementioned processors, such as Figure 10 As shown, the processor module mainly consists of an MCU chip, preferably an AK-7797, but can be replaced by a similar chip or analog-to-digital circuit. The AK-7797 chip has a minimum operating system. The AK-7797 chip controls various functional modules in the audio system through its pins and exchanges data with these modules via these pins. For example, the AK-7797 chip connects to the MC6C227 chip through pin 35 (I2C_SCL), pin 63 (STED_OUT), and pin 34 (I2C_SDA). These pins are used for data exchange. The AK-7797 chip can also control the MC6C227 chip through some of its pins. The AK-7797 chip connects to a memory via pins 28 (ALN) and VDDTO. This memory can be flash memory, an SD card, or a TF card. The control buttons 103 include a motion mode button, a power / power / mode switching button, a call answer / play / pause button, a previous track button, a next track button, and an SOS emergency call button, all located on the side of the speaker body 101.

[0060] In this application, the aforementioned multifunctional speaker includes conventional structural components such as a speaker cabinet, speaker assembly, audio processing module, and TF card slot. It may also include a network module, such as a Wi-Fi module, for internet connectivity. Control software, for example, allows users to control the speaker's playback via a mobile app, adjusting effects, playback speed, equalization, etc. The app also provides music categorization capabilities, classifying music from TF cards or online playback into 13 categories, such as: walking music, Tai Chi, classic oldies, opera selections, square dance music, historical stories, relaxation music, children's music, pop music, folk songs, popular online songs, crosstalk / storytelling, and user-selected music. Users can switch between different music types using specially designed buttons. For example, during a walking activity, pressing the corresponding button to select the walking music type will allow the speaker to play music suitable for the walking rhythm. This categorized playback function allows users to quickly find the music they want based on different activities or moods.

[0061] When a user double-clicks the button, the speaker automatically switches to the next music genre. This design makes switching music genres more convenient and efficient, eliminating the need to manually search for each genre.

[0062] Based on the features of this speaker's sports speaker, the music can be categorized as follows: Walking music: Its rhythm typically has a stable beat and moderate speed, matching the walker's stride and making the walk more rhythmic, increasing the enjoyment and motivation of the exercise. Tai Chi music: This type of music has a soothing melody and steady rhythm, helping practitioners better regulate their breathing and relax their mind and body during Tai Chi practice. It echoes the slow and continuous movements of Tai Chi, enhancing the overall Tai Chi experience. Classic old songs: Carrying cultural memories from different eras, classic old songs can evoke emotional resonance for listeners of all ages, providing a familiar and warm musical experience. Selected operas: Satisfying the needs of opera enthusiasts for different opera genres, whether it's the grandeur of Peking Opera, the gentle beauty of Yue Opera, or the fresh simplicity of Huangmei Opera, all can be found in this category, making it convenient for opera lovers to enjoy at any time. Square dance music: With a strong sense of rhythm and cheerful melodies, it is very suitable for square dancing activities. Different styles of square dance music can satisfy the preferences of different square dance groups, making square dancing more vibrant. Historical Stories: Presented in audio format, this section narrates historical events and biographies, allowing users to learn about history and broaden their cultural horizons while listening to music – an entertaining and educational approach. Relaxing Music: Its gentle melodies and soothing rhythms help relieve tension and reduce stress, creating a tranquil and relaxing auditory environment suitable for rest and meditation. Children's Music: Includes a large selection of music suitable for children, with simple, cheerful melodies and educational lyrics, contributing to children's intellectual development, language learning, and aesthetic cultivation. Popular Music: Keeps up with fashion trends, reflecting current social culture and popular tastes, satisfying young users' pursuit of trendy music and providing them with musical topics to share with their peers. Fresh Folk Songs: Characterized by simple lyrics and natural melodies, these songs convey a love for life and nature, offering a fresh and pure auditory experience, perfect for relaxing during leisure time. Popular Online Songs: Timely inclusion of currently popular online songs, allowing users to quickly access trending music resources and keep up with popular culture. Crosstalk and Storytelling: This category provides a convenient listening platform for crosstalk and storytelling enthusiasts. Whether it's classic traditional routines or modern creations, you can find them all, enriching users' entertainment options. Custom Music: This category grants users a high degree of personalization. Users can add their favorite music that doesn't belong to the above categories to their custom music selection, making it easy to play according to their preferences at any time.

[0063] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0064] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0065] The above provides a detailed description of a multifunctional speaker provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A multi-functional sound box, characterized in that, include: The speaker body has control buttons on its side and a main control unit inside. The main control unit is electrically connected to at least one speaker through a power amplifier unit. The speaker body is provided with a playback port corresponding to the speaker, and a foldable mobile terminal bracket is provided on one side of the playback port; It also includes a pedometer installed inside the speaker body; the pedometer is electrically connected to the main control unit.

2. The multi-functional sound box of claim 1, wherein, The mobile terminal support includes: a base integrally formed with the speaker body; The support arm has one end rotatably connected to the base and the other end rotatably connected to a magnetic chuck.

3. The multi-functional sound box of claim 2, wherein, The base is provided with a fixing plate at its upper end; A rotating disk that is rotatably embedded in the fixed disk; The rotating disk is connected to a first connector on its side; and a second connector is connected to a magnetic chuck. The support arm has its two ends connected to the first connector and the second connector respectively by screws.

4. The multi-functional sound box of claim 3, wherein, The magnetic chuck has a ring of magnets arranged around its outer periphery.

5. The multi-functional sound box of claim 3, wherein, It also includes a support plate, to which the magnetic chuck is attached or embedded.

6. The multi-functional sound box of claim 1, wherein, It also includes a frequency division unit, and the loudspeaker includes a low-frequency loudspeaker, a mid-frequency loudspeaker, and a high-frequency loudspeaker; The low-frequency speaker, mid-frequency speaker, and high-frequency speaker are electrically connected to the power amplifier unit through the crossover unit.

7. The multi-functional sound box of claim 6, wherein, The main control unit also includes a processor module and an audio processing module; The processor module and the audio processing module are electrically connected; The audio processing module is electrically connected to the power supply unit, audio input unit, LED display unit, human-computer interaction unit, and power amplifier unit. The audio input unit is electrically connected to a Bluetooth module.

8. The multi-functional sound box of claim 6, wherein, The frequency division unit and the power amplifier unit, the low-frequency speaker, the intermediate-frequency speaker and the high-frequency speaker form a low-frequency circuit, an intermediate-frequency circuit and a high-frequency circuit; The high-frequency circuit includes: a high-frequency loudspeaker, the first end of which is electrically connected in sequence to a first frequency divider capacitor and a first frequency divider resistor, and the second end of which is electrically connected to the power amplifier unit along with the first frequency divider resistor; The intermediate frequency circuit includes: an intermediate frequency loudspeaker, the first end of which is electrically connected in sequence to a second crossover capacitor, a first crossover inductor, and a second crossover resistor, and the second end of which and the second crossover resistor are electrically connected to the power amplifier unit; The low-frequency circuit includes: a low-frequency speaker, the first end of which is electrically connected to the power amplifier unit through a first crossover inductor, and the second end of which is electrically connected to the power amplifier unit, and a third crossover capacitor is electrically connected between the first end and the second end.

9. The multifunctional speaker according to claim 7, characterized in that, The pedometer includes an intelligent motion module; The processor module is electrically connected to the intelligent motion module and is used to receive the three-dimensional acceleration information of the human body collected by the pedometer, convert it into an audio signal and output it to the speaker.

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