Lightweight double-diaphragm wireless interconnection sound box

Abstract

The utility model discloses a lightweight double-diaphragm wireless interconnection sound box, which can ensure that audio streams can be efficiently and stably transmitted in a complex environment through a wireless communication unit, delay and lagging are reduced, user experience is improved, an audio processing unit accurately restores high and low frequency components of audio signals, tone quality is optimized, and sound quality is improved. And the main control unit generates a double-diaphragm driving control signal according to the decoded audio signal, realizes dynamic frequency division driving and enhances the tone quality layering sense by accurately controlling the vibration of the high-frequency and low-frequency diaphragms, and is also responsible for dynamically adjusting the output voltage of the power supply unit, optimizing the energy consumption and prolonging the endurance time according to the load demand. The double-diaphragm driving unit adopts a high-frequency and low-frequency diaphragm separation design, interference is avoided, high-fidelity audio restoration is realized, and the power supply unit outputs stable voltage to a double-diaphragm load according to an instruction of the main control unit, so that stable performance of the sound box is ensured.

Description

Technical Field

[0001] This utility model relates to the field of speaker technology, and in particular to a lightweight dual-diaphragm wireless interconnection speaker. Background Technology

[0002] With the rapid development of smart homes and portable audio devices, users have put forward higher requirements for the sound quality, portability and interconnectivity of wireless speakers. Traditional wireless speakers mostly adopt single diaphragm or fixed crossover design, resulting in the following defects: (1) Fixed crossover cannot adapt to different volumes or audio content, resulting in blurred high-frequency details or insufficient low-frequency extension; (2) Lack of dynamic voltage adjustment mechanism, resulting in high power consumption and short battery life. Utility Model Content

[0003] In view of this, this utility model proposes a lightweight dual-diaphragm wireless interconnected speaker, which can solve the defects of existing technologies such as blurred high-frequency details or insufficient low-frequency extension, as well as high power consumption and short battery life.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A lightweight dual-diaphragm wireless interconnected speaker includes:

[0006] A wireless communication unit is used to transmit audio streams;

[0007] The audio processing unit is used to decode audio.

[0008] The main control unit is used to generate control signals for dual-diaphragm drive and voltage adjustment control signals;

[0009] A dual-diaphragm drive unit is used to achieve dynamic frequency division drive of the high-frequency diaphragm and the low-frequency diaphragm;

[0010] The power supply unit is used to output the operating voltage to the dual-diaphragm load.

[0011] As a further optional solution for the lightweight dual-diaphragm wireless interconnected speaker, the wireless communication unit is equipped with a dual-band switching circuit to achieve concurrent transmission of 2.4GHz / 5GHz dual bands.

[0012] As a further optional solution for the lightweight dual-diaphragm wireless interconnected speaker, the audio processing unit and the main control unit transmit data via a TDM digital audio interface.

[0013] As a further optional solution for the lightweight dual-diaphragm wireless interconnected speaker, the main control unit includes:

[0014] The floating-point arithmetic module is used to calculate the optimal operating voltage based on audio data;

[0015] The ARM processor is used to generate control signals for dual-diaphragm drive based on audio data, and to generate voltage adjustment control signals based on the optimal operating voltage.

[0016] As a further optional solution for the aforementioned lightweight dual-diaphragm wireless interconnected speaker, the dual-diaphragm driver unit:

[0017] Digital frequency divider circuits are used to divide audio signals into high-frequency and low-frequency components according to dynamic frequency division points;

[0018] The power amplifier circuit is used to amplify the dynamically divided audio signal to a sufficient power to drive the diaphragm to generate sound pressure.

[0019] As a further optional feature of the lightweight dual-diaphragm wireless interconnected speaker, the power supply unit includes:

[0020] A DC-DC converter circuit is used to convert the input voltage to the voltage required by the load.

[0021] Output filter circuit, used to filter out high-frequency switching noise at the output of DC-DC converter.

[0022] Protection circuitry is used to protect the power supply unit from overvoltage, overcurrent, and short circuit.

[0023] The beneficial effects of this utility model are as follows: The wireless communication unit adopts advanced wireless communication technology, which can achieve efficient and stable transmission of audio streams. In complex environments, the wireless communication unit can still maintain good connection stability, reduce audio transmission delay and stuttering, and improve user experience. The audio processing unit can accurately reproduce the high-frequency and low-frequency components in the audio signal, improving sound quality. The main control unit generates a dual-diaphragm drive control signal based on the audio signal decoded by the audio processing unit. By precisely controlling the vibration of the high-frequency diaphragm and the low-frequency diaphragm, dynamic frequency division drive of the audio signal is achieved, improving the layering of sound quality. The main control unit is also responsible for generating a voltage adjustment control signal, which dynamically adjusts the output voltage of the power supply unit according to the needs of the dual-diaphragm load. By optimizing the voltage adjustment strategy, energy consumption is reduced and the speaker's battery life is extended. The dual-diaphragm drive unit adopts a design that separates the high-frequency diaphragm and the low-frequency diaphragm, which can effectively avoid interference between the two. By precisely controlling the vibration of the high-frequency diaphragm and the low-frequency diaphragm, high-fidelity reproduction of the audio signal is achieved. The power supply unit can output a stable working voltage to the dual-diaphragm load according to the voltage adjustment control signal of the main control unit. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram illustrating the composition of a lightweight dual-diaphragm wireless interconnected speaker according to this utility model.

[0026] Figure 2 This is a circuit diagram of the wireless communication unit in this utility model;

[0027] Figure 3 This is a circuit diagram of the floating-point arithmetic module in this utility model;

[0028] Figure 4 This is a circuit diagram of the ARM processor in this utility model;

[0029] Figure 5 This is a circuit diagram of the digital frequency divider circuit in this utility model;

[0030] Figure 6 This is a circuit diagram of the power amplifier circuit in this utility model. Detailed Implementation

[0031] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] refer to Figures 1 to 6 A lightweight dual-diaphragm wireless interconnected speaker, comprising:

[0033] A wireless communication unit is used to transmit audio streams;

[0034] The audio processing unit is used to decode audio.

[0035] The main control unit is used to generate control signals for dual-diaphragm drive and voltage adjustment control signals;

[0036] A dual-diaphragm drive unit is used to achieve dynamic frequency division drive of the high-frequency diaphragm and the low-frequency diaphragm;

[0037] The power supply unit is used to output the operating voltage to the dual-diaphragm load.

[0038] In this embodiment, the wireless communication unit adopts advanced wireless communication technology, enabling efficient and stable transmission of audio streams. Even in complex environments, the wireless communication unit maintains good connection stability, reducing audio transmission latency and stuttering, and improving user experience. The audio processing unit accurately reproduces the high-frequency and low-frequency components in the audio signal, improving sound quality. The main control unit generates control signals for dual-diaphragm drive based on the audio signal decoded by the audio processing unit. By precisely controlling the vibration of the high-frequency and low-frequency diaphragms, dynamic frequency division driving of the audio signal is achieved, enhancing the layering of sound quality. The main control unit is also responsible for generating voltage adjustment control signals, dynamically adjusting the output voltage of the power supply unit according to the needs of the dual-diaphragm load. By optimizing the voltage adjustment strategy, energy consumption is reduced, and the speaker's battery life is extended. The dual-diaphragm drive unit adopts a separate design for the high-frequency and low-frequency diaphragms, effectively avoiding interference between them. By precisely controlling the vibration of the high-frequency and low-frequency diaphragms, high-fidelity reproduction of the audio signal is achieved. The power supply unit can output a stable operating voltage to the dual-diaphragm load according to the voltage adjustment control signal of the main control unit.

[0039] Specifically, when the speaker receives an audio stream from a wireless signal, the wireless communication unit transmits it to the audio processing unit. The audio processing unit decodes the received audio stream, and the main control unit generates control signals for the dual-diaphragm drive based on the decoded audio signal. These control signals precisely indicate the vibration mode and amplitude of the high-frequency and low-frequency diaphragms. Simultaneously, the main control unit monitors the load requirements of the dual diaphragms and generates voltage adjustment control signals accordingly. These signals are sent to the power supply unit to adjust the output voltage, ensuring the dual-diaphragm drive unit operates at its optimal state. Based on the control signals generated by the main control unit, the high-frequency and low-frequency diaphragms respond to the audio signal with different vibration modes and amplitudes, producing clear and separated high-frequency and low-frequency sounds. The power supply unit outputs a stable operating voltage to the dual-diaphragm load based on the voltage adjustment control signals from the main control unit, ensuring the dual-diaphragm drive unit operates in a stable voltage environment, which helps improve the speaker's sound quality and stability.

[0040] Preferably, the wireless communication unit is equipped with a dual-band switching circuit to achieve concurrent transmission of 2.4GHz / 5GHz dual-band.

[0041] In this embodiment, dual-band concurrent transmission means that the wireless communication unit can simultaneously utilize both the 2.4GHz and 5GHz frequency bands for data transmission, thereby optimizing the utilization of spectrum resources. This helps alleviate the problem of spectrum resource scarcity and improves the capacity and efficiency of the wireless network. The dual-band switching circuit can intelligently select the optimal frequency band for connection based on the current network environment and device requirements. For example, in situations with weak signal strength or significant interference, the wireless communication unit can automatically switch to the 5GHz frequency band to obtain better connection quality. This intelligent switching function enhances the speaker's network adaptability, enabling it to maintain stable connection and transmission in different network environments. Stable wireless connection and high-speed data transmission significantly improve the user experience. Users can enjoy high-definition sound quality without worrying about connection interruptions or sound quality degradation. Furthermore, dual-band concurrent transmission technology can support more devices connecting to the speaker simultaneously, meeting the needs of multiple users in homes or offices.

[0042] Preferably, the audio processing unit and the main control unit transmit data via a TDM digital audio interface.

[0043] In this embodiment, the TDM interface can support the transmission of up to dozens or even hundreds of audio channels, enabling the speaker to handle more complex audio signals. In a lightweight dual-diaphragm wireless interconnected speaker, multi-channel audio transmission is crucial for achieving dynamic crossover driving of the dual diaphragms. Through the TDM interface, the audio processing unit can efficiently transmit the decoded audio signal to the main control unit, thereby controlling the vibration of the dual diaphragms and achieving fine separation and enhancement of high-frequency and low-frequency components. TDM technology ensures accurate transmission of multi-channel data through a precise clock synchronization mechanism. When transmitting data between the audio processing unit and the main control unit, the TDM interface can maintain the synchronization of the audio signal and avoid data misalignment or delay between different channels. This is crucial for maintaining high-fidelity sound reproduction, especially when processing high-frequency and low-frequency components, ensuring the accuracy and integrity of the audio signal.

[0044] Preferably, the main control unit includes:

[0045] The floating-point arithmetic module is used to calculate the optimal operating voltage based on audio data;

[0046] The ARM processor is used to generate control signals for dual-diaphragm drive based on audio data, and to generate voltage adjustment control signals based on the optimal operating voltage.

[0047] In this embodiment, the floating-point arithmetic module can quickly and accurately calculate the optimal operating voltage required for dual-diaphragm driving based on real-time changes in audio data. This precise calculation helps ensure that the dual diaphragms achieve the best vibration effect with minimal energy consumption during driving, thereby improving the speaker's sound quality and energy efficiency. By analyzing audio data in real time, the floating-point arithmetic module can dynamically adjust the operating voltage to adapt to the needs of different audio signals. This dynamic adjustment helps reduce energy consumption while ensuring that the speaker maintains stable sound quality performance in various audio scenarios. The ARM processor can quickly generate control signals for dual-diaphragm driving based on audio data. These control signals can precisely control the vibration of the high-frequency and low-frequency diaphragms, realizing the audio signal... Dynamic crossover drive enhances the speaker's sound quality and layering. The ARM processor not only generates control signals for the dual-diaphragm drive but also generates voltage adjustment control signals based on the optimal operating voltage calculated by the floating-point arithmetic module. These signals precisely adjust the output voltage of the power supply unit, ensuring a stable power supply for the dual diaphragms during drive, further improving the speaker's sound quality and stability. Through the collaborative work of the floating-point arithmetic module and the ARM processor, the main control unit can accurately calculate and adjust the operating voltage and control signals of the dual diaphragms, thereby improving the speaker's sound performance. Dynamically adjusting the operating voltage and precisely controlling the vibration of the dual diaphragms helps reduce the speaker's energy consumption, which not only extends the speaker's battery life but also reduces energy waste.

[0048] Preferably, the dual-diaphragm drive unit:

[0049] Digital frequency divider circuits are used to divide audio signals into high-frequency and low-frequency components according to dynamic frequency division points;

[0050] The power amplifier circuit is used to amplify the dynamically divided audio signal to a sufficient power to drive the diaphragm to generate sound pressure.

[0051] In this embodiment, the digital crossover circuit can dynamically determine the crossover point based on the real-time changes in the audio signal, accurately dividing the audio signal into high-frequency and low-frequency components. Compared with the traditional fixed crossover point method, this dynamic crossover method can more accurately match the vibration characteristics of the dual diaphragms, allowing the high-frequency and low-frequency diaphragms to receive the most suitable audio signals for themselves, thereby improving the speaker's sound quality. Through the digital crossover circuit, the audio signal can be more effectively managed and optimized during transmission, with high-frequency and low-frequency components processed separately, avoiding interference and crosstalk between signals, thus improving the transmission efficiency and accuracy of the audio signal. The high-frequency and low-frequency components after dynamic crossover can be received and responded to by the high-frequency diaphragm and low-frequency diaphragm in the dual-diaphragm driver unit, respectively. Since these two diaphragms have different vibration characteristics, they can generate high-frequency and low-frequency sound pressure levels, thereby enhancing the sound quality layering of the speaker. Users can experience clearer and more separated high-frequency and low-frequency sounds when listening to music. The coordinated work of the digital crossover circuit and the power amplifier circuit enables the dual-diaphragm driver unit to receive and process audio signals more accurately, thereby producing clearer, more separated, and richer sounds. The efficient power amplifier circuit reduces energy consumption and extends the speaker's battery life.

[0052] Preferably, the power supply unit includes:

[0053] A DC-DC converter circuit is used to convert the input voltage to the voltage required by the load.

[0054] Output filter circuit, used to filter out high-frequency switching noise at the output of DC-DC converter.

[0055] Protection circuitry is used to protect the power supply unit from overvoltage, overcurrent, and short circuit.

[0056] In this embodiment, the DC-DC conversion circuit can efficiently convert the input voltage into the voltage required by the load. In a lightweight dual-diaphragm wireless interconnected speaker, this means that the power supply unit can provide a stable voltage output according to different load requirements (such as dual-diaphragm drive unit, main control unit, etc.), ensuring the normal operation of the speaker. The DC-DC conversion circuit generates high-frequency switching noise during operation. If this noise is not filtered out, it will interfere with the normal operation of the speaker system. The output filtering circuit can effectively filter out this high-frequency noise, ensuring the purity of the power output. Filtering out high-frequency switching noise helps reduce noise interference in the speaker system, thereby improving sound quality. When the power supply voltage exceeds the set value, the protection circuit will automatically cut off the power supply or reduce the voltage to prevent overvoltage from damaging the speaker system. This helps protect the load device and the power supply unit itself from overvoltage damage. When the current exceeds the rated value of the load device, the protection circuit will quickly cut off the power supply to prevent equipment damage or fire caused by overcurrent. When a short circuit occurs in the power supply unit or load device, the protection circuit can quickly respond and cut off the power supply to prevent excessive current and equipment damage caused by the short circuit.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightweight dual-diaphragm wireless interconnected speaker, characterized in that, include: A wireless communication unit is used to transmit audio streams; The audio processing unit is used to decode audio. The main control unit is used to generate control signals for dual-diaphragm drive and voltage adjustment control signals; A dual-diaphragm drive unit is used to achieve dynamic frequency division drive of the high-frequency diaphragm and the low-frequency diaphragm; The power supply unit is used to output the operating voltage to the dual-diaphragm load.

2. The lightweight dual-diaphragm wireless interconnected speaker according to claim 1, characterized in that, The wireless communication unit is equipped with a dual-band switching circuit to achieve concurrent transmission of 2.4GHz / 5GHz dual-band signals.

3. A lightweight dual-diaphragm wireless interconnected speaker according to claim 2, characterized in that, The audio processing unit and the main control unit transmit data via a TDM digital audio interface.

4. A lightweight dual-diaphragm wireless interconnected speaker according to claim 3, characterized in that, The main control unit includes: The floating-point arithmetic module is used to calculate the optimal operating voltage based on audio data; The ARM processor is used to generate control signals for dual-diaphragm drive based on audio data, and to generate voltage adjustment control signals based on the optimal operating voltage.

5. A lightweight dual-diaphragm wireless interconnected speaker according to claim 4, characterized in that, The dual-diaphragm drive unit: Digital frequency divider circuits are used to divide audio signals into high-frequency and low-frequency components according to dynamic frequency division points; The power amplifier circuit is used to amplify the dynamically divided audio signal to a sufficient power to drive the diaphragm to generate sound pressure.

6. A lightweight dual-diaphragm wireless interconnected speaker according to claim 5, characterized in that, The power supply unit includes: A DC-DC converter circuit is used to convert the input voltage to the voltage required by the load. Output filtering circuit, used to filter out high-frequency switching noise from the DC-DC converter output; protection circuit, used to provide overvoltage, overcurrent and short-circuit protection for the power supply unit.

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