A wireless smart speaker

Abstract

This utility model relates to the field of speaker equipment technology, specifically to a wireless smart speaker. This speaker wirelessly connects to a mobile device and includes a speaker housing. It integrates multiple functional modules such as a Bluetooth audio module, a rotary adjustment circuit, a wireless media transmission system, a button circuit, an AUX IN interface, and an LCM display module. It establishes a wireless communication connection with the mobile device through the Bluetooth audio module board, allowing users to play and control audio content without a physical connection. Simultaneously, the integrated wireless media transmission system (supporting AirPlay or other protocols) further expands the speaker's compatibility with various wireless audio protocols, improving the flexibility and stability of audio transmission and meeting the needs of different user groups. The rotary adjustment circuit allows for fine adjustment of the sound signal level or volume at different frequencies, enabling users to personalize the sound effects according to their preferences or environmental characteristics, significantly improving the subjective listening experience.

Description

Technical Field

[0001] This utility model relates to the field of speaker equipment technology, specifically to a wireless smart speaker. Background Technology

[0002] With the rapid development of mobile internet and smart terminal devices, portable audio devices have become an indispensable part of people's daily lives. In the current market, Bluetooth speakers dominate due to their convenient wireless connectivity. However, against the backdrop of continuously evolving user experiences, existing Bluetooth speaker products are gradually revealing many limitations in terms of technical performance and interaction design, urgently requiring breakthroughs through technological innovation and product iteration.

[0003] Firstly, from the perspective of audio transmission, the limitations of the Bluetooth protocol in terms of bandwidth and encoding efficiency have become key bottlenecks restricting the improvement of sound quality. Currently, mainstream Bluetooth audio transmission standards such as SBC, AAC, and aptX have compression rates and data rates that are insufficient to support stable transmission of Hi-Res Audio (high-resolution audio) or lossless audio quality. This results in the loss of audio details and limited dynamic range, affecting the user experience for users who have high requirements for sound quality.

[0004] Secondly, the conflict between portability and battery life is becoming increasingly prominent. To achieve a lightweight and portable design, many Bluetooth speakers have excessively reduced battery capacity, leading to frequent charging during outdoor or extended use, thus decreasing the device's practicality and user satisfaction. Especially in outdoor gatherings, travel, and camping, battery life becomes one of the core factors affecting user experience.

[0005] Furthermore, current portable speakers on the market generally suffer from a "one-size-fits-all" design, lacking the ability to adapt to different usage scenarios and user groups. For example, users have significantly different needs for audio performance characteristics such as volume, frequency response, and spatial perception for different scenarios such as home entertainment, outdoor activities, and professional performances. Existing products often cannot flexibly adjust these through hardware structure or software algorithms, limiting the breadth and depth of their applications.

[0006] Furthermore, in terms of human-computer interaction, most portable speakers still rely on traditional physical power buttons, lacking intelligent and multimodal interaction methods. With the development of technologies such as artificial intelligence, voice recognition, and touch interaction, users have higher demands for the intelligent responsiveness and user-friendliness of devices. The lack of voice control, gesture recognition, and remote control via apps in existing products results in a relatively lagging interactive experience, failing to meet modern users' expectations for intelligent audio devices. Utility Model Content

[0007] This invention addresses the shortcomings and deficiencies of existing technologies by providing a wireless smart speaker that solves the problem of unstable transmission of lossless or high-resolution audio.

[0008] To achieve the above objectives, the present invention provides a wireless smart speaker that wirelessly connects to a mobile device. The speaker includes a speaker housing, within which are installed a Bluetooth audio module board, a rotary adjustment circuit for adjusting the level or volume of sound signals at different frequencies, a wireless media transmission system for wireless audio transmission between devices, and a button circuit for mode switching. The Bluetooth audio module board has a control circuit, and the speaker housing has an AUX IN interface and an LCM display module electrically connected to the control circuit. The control circuit is wirelessly connected to the mobile device via Bluetooth, and the control circuit, button circuit, and rotary adjustment circuit are all connected via GPIO interfaces. The wireless media transmission system is connected via I... 2 The C protocol is connected to the control circuit for communication, and an antenna is installed on the control circuit.

[0009] Furthermore, the control circuit includes a Bluetooth audio chip; the 28th pin of the Bluetooth audio chip is electrically connected to the button circuit, and the 31st, 32nd, and 35th pins of the Bluetooth audio chip are all electrically connected to the rotation adjustment circuit; the 24th pin of the Bluetooth audio chip is connected to a 3.8V power supply voltage, and the 34th, 38th, 65th, 67th, and 73rd pins of the Bluetooth audio chip are all electrically connected to the LCM display module.

[0010] Further, the rotation adjustment circuit includes a knob encoder, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first transient suppression diode, a second transient suppression diode, a third transient suppression diode, a first capacitor, a second capacitor, and a third capacitor; one end of the first capacitor is grounded, and the other end is electrically connected to the thirty-first pin of the Bluetooth audio chip; one end of the second capacitor is grounded, and the other end is electrically connected to the thirty-second pin of the Bluetooth audio chip; one end of the first resistor is electrically connected to the second capacitor, and the other end is electrically connected to the second pin of the knob encoder; one end of the second resistor is electrically connected to the first capacitor, and the other end is electrically connected to the first pin of the knob encoder; the third, fourth, sixth, and seventh pins of the knob encoder are all grounded. The first transient suppression diode, the third resistor, and the fourth resistor are connected in series, with one end electrically connected to the first pin of the rotary encoder and the other end grounded. The common terminal of the third resistor and the fourth resistor is connected to a 3.3V power supply voltage, and the common terminal of the third resistor and the first transient suppression diode is electrically connected to the first resistor. One end of the second transient suppression diode is grounded, and the other end is electrically connected to the second resistor. The fifth resistor and the third capacitor are connected in series, with one end electrically connected to the fifth pin of the rotary encoder and the other end grounded. The third transient suppression diode and the sixth resistor are connected in series, with one end connected to a 3.3V power supply voltage and the other end electrically connected to the fifth pin of the rotary encoder. The common terminal of the third transient suppression diode and the sixth resistor is electrically connected to the fifth resistor.

[0011] Further; the button circuit includes a first switch button, a second switch button, a third switch button, a fourth switch button, a fourth transient suppression diode, a fifth transient suppression diode, a sixth transient suppression diode, a seventh transient suppression diode, an eighth transient suppression diode, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, and a fourth capacitor; the first switch button, the second switch button, the seventh resistor, and the eighth resistor are connected in series, one end of which is electrically connected to the twenty-eighth pin of the Bluetooth audio chip, and the other end is grounded; the third switch button, the fourth switch button, the ninth resistor, and the tenth resistor are connected in series, one end of which is electrically connected to the eighth resistor, and the other end of which is electrically connected to the second switch button; the eleventh resistor and the tenth... Two resistors are connected in series, one end grounded and the other end connected to a 1.8V power supply. The common terminal of the eleventh and twelfth resistors is electrically connected to the twenty-eighth pin of the Bluetooth audio chip. One end of the fourth capacitor is grounded and the other end is electrically connected to the twenty-eighth pin of the Bluetooth audio chip. One end of the fourth transient suppression diode is grounded and the other end is connected to the fourth capacitor. One end of the fifth transient suppression diode is grounded and the other end is electrically connected to the fourth switch button. One end of the sixth transient suppression diode is grounded and the other end is electrically connected to the third switch button. One end of the seventh transient suppression diode is grounded and the other end is electrically connected to the second switch button. One end of the eighth transient suppression diode is grounded and the other end is electrically connected to the first switch button.

[0012] Further, the LCM display module includes a display interface, a ninth transient suppression diode, a tenth transient suppression diode, an eleventh transient suppression diode, a twelfth transient suppression diode, a thirteenth transient suppression diode, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, and a seventeenth resistor; an LCD screen is mounted on the display interface; one end of the ninth transient suppression diode is grounded, and the other end is electrically connected to the thirty-eighth pin of the Bluetooth audio chip; one end of the tenth transient suppression diode is grounded, and the other end is electrically connected to the thirty-fourth pin of the Bluetooth audio chip; one end of the eleventh transient suppression diode is grounded, and the other end is electrically connected to the sixty-fifth pin of the Bluetooth audio chip; one end of the twelfth transient suppression diode is grounded, and the other end is electrically connected to the sixty-seventh pin of the Bluetooth audio chip. The device has seventeen electrical connections; one end of the thirteenth transient suppression diode is grounded, and the other end is electrically connected to the seventy-third pin of the Bluetooth audio chip; one end of the thirteenth resistor is electrically connected to the sixty-seventh pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the fourteenth resistor is electrically connected to the sixty-fifth pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the fifteenth resistor is electrically connected to the seventy-third pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the sixteenth resistor is electrically connected to the thirty-eighth pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the seventeenth resistor is electrically connected to the thirty-fourth pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface.

[0013] Furthermore, the wireless smart speaker also includes a power amplifier circuit for adjusting the amplitude of sound signals at different frequencies; the Bluetooth audio chip uses I... 2 The C protocol is connected to the power amplifier circuit for communication, and the power amplifier circuit is powered on and connected to a speaker.

[0014] Furthermore, the wireless smart speaker also includes a power switch button circuit, which includes a fifth switch button, an eighteenth resistor, a nineteenth resistor, a fifth capacitor, a sixth capacitor, and a fourteenth transient suppression diode. The eighteenth resistor and the fifth capacitor are connected in series, with one end grounded and the other end electrically connected to the sixty-ninth pin of the Bluetooth audio chip. One end of the fourteenth transient suppression diode is grounded and the other end is electrically connected to the eighteenth resistor. The fifth switch button and the sixth capacitor are connected in series, with one end grounded and the other end electrically connected to the fourteenth transient suppression diode. One end of the nineteenth resistor is electrically connected to the sixth capacitor, and the other end is connected to a 3.8V power supply voltage.

[0015] Furthermore, the wireless smart speaker also includes a power management circuit; the power management circuit includes an input power supply, a charging management circuit, a rechargeable battery, and a power supply, the output terminal of the input power supply is electrically connected to the input terminal of the charging management circuit, and the output terminal of the charging management circuit is electrically connected to the rechargeable battery and the power supply.

[0016] The beneficial effects of this utility model are:

[0017] This invention provides a wireless smart speaker that integrates multiple functional modules, including a Bluetooth audio module, a rotary adjustment circuit, a wireless media transmission system, a button circuit, an AUX IN interface, and an LCM display module. It establishes a wireless communication connection with a mobile device via the Bluetooth audio module board, allowing users to play and control audio content without a physical connection. The integrated wireless media transmission system (supporting AirPlay or other protocols) further expands the speaker's compatibility with various wireless audio protocols, improving the flexibility and stability of audio transmission and meeting the needs of different user groups. The rotary adjustment circuit allows for fine-tuning of the sound signal level or volume at different frequencies, enabling users to personalize sound effects according to their preferences or environmental characteristics, significantly enhancing the subjective listening experience. The LCM display module on the speaker casing displays real-time information such as the current playback status, volume, EQ settings, and connected devices, improving the visibility of user operations. Combined with the physical rotary adjustment circuit and button circuit design, it achieves an intuitive and convenient human-computer interaction method, especially suitable for scenarios where touchscreen or voice control is not feasible. With its AUX IN interface, the speaker supports not only wireless Bluetooth connectivity but also wired audio input, meeting the access needs of various devices. Simultaneously, the button circuitry allows for quick switching between different operating modes (such as Bluetooth mode, AUX input mode, and wireless media transmission mode), enhancing the device's adaptability and practicality. This application introduces advanced features such as wireless connectivity, intelligent interaction, and multi-protocol support into traditional portable speakers, driving the development of speaker products towards intelligence and multi-functionality, and meeting users' high-quality audio needs in various scenarios such as home, office, and outdoor settings. This speaker is not only simple in structure and low in cost but also easy to implement and promote. Attached Figure Description

[0018] Figure 1 This is a structural block diagram of a wireless smart speaker according to the present invention;

[0019] Figure 2 This is a circuit diagram of a wireless smart speaker according to the present invention;

[0020] Figure 3 This is another structural block diagram of a wireless smart speaker according to the present invention;

[0021] Figure 4 This is a structural schematic diagram of a wireless smart speaker according to the present invention. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] This utility model proposes a wireless smart speaker.

[0026] In the embodiments of this utility model, such as Figure 1-4 As shown, a wireless smart speaker is wirelessly connected to a mobile device. It includes a speaker housing 1, within which are installed a Bluetooth audio module board, a rotary adjustment circuit for adjusting the level or volume of sound signals at different frequencies, a wireless media transmission system for wireless audio transmission between devices, and a button circuit for mode switching. The Bluetooth audio module board has a control circuit. The speaker housing 1 has an AUX IN interface and an LCM display module, both electrically connected to the control circuit. The control circuit is wirelessly connected to the mobile device via Bluetooth. The control circuit, button circuit, and rotary adjustment circuit are all connected via GPIO interfaces. The wireless media transmission system is connected via I... 2 The C protocol is connected to the control circuit for communication, and an antenna is installed on the control circuit.

[0027] In this embodiment, the control circuit includes a Bluetooth audio chip; the 28th pin of the Bluetooth audio chip is electrically connected to the button circuit, and the 31st, 32nd, and 35th pins of the Bluetooth audio chip are all electrically connected to the rotation adjustment circuit; the 24th pin of the Bluetooth audio chip is connected to a 3.8V power supply voltage, and the 34th, 38th, 65th, 67th, and 73rd pins of the Bluetooth audio chip are all electrically connected to the LCM display module.

[0028] In this embodiment, the rotation adjustment circuit includes a knob encoder, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first transient suppression diode, a second transient suppression diode, a third transient suppression diode, a first capacitor, a second capacitor, and a third capacitor; one end of the first capacitor is grounded, and the other end is electrically connected to the thirty-first pin of the Bluetooth audio chip; one end of the second capacitor is grounded, and the other end is electrically connected to the thirty-second pin of the Bluetooth audio chip; one end of the first resistor is electrically connected to the second capacitor, and the other end is electrically connected to the second pin of the knob encoder; one end of the second resistor is electrically connected to the first capacitor, and the other end is electrically connected to the first pin of the knob encoder; the third, fourth, sixth, and seventh pins of the knob encoder are all connected to... The first transient suppression diode, the third resistor, and the fourth resistor are connected in series, with one end electrically connected to the first pin of the rotary encoder and the other end grounded. The common terminal of the third resistor and the fourth resistor is connected to a 3.3V power supply voltage. The common terminal of the third resistor and the first transient suppression diode is electrically connected to the first resistor. One end of the second transient suppression diode is grounded and the other end is electrically connected to the second resistor. The fifth resistor and the third capacitor are connected in series, with one end electrically connected to the fifth pin of the rotary encoder and the other end grounded. The third transient suppression diode and the sixth resistor are connected in series, with one end connected to a 3.3V power supply voltage and the other end electrically connected to the fifth pin of the rotary encoder. The common terminal of the third transient suppression diode and the sixth resistor is electrically connected to the fifth resistor.

[0029] In this embodiment, the button circuit includes a first switch button, a second switch button, a third switch button, a fourth switch button, a fourth transient suppression diode, a fifth transient suppression diode, a sixth transient suppression diode, a seventh transient suppression diode, an eighth transient suppression diode, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, and a fourth capacitor; the first switch button, the second switch button, the seventh resistor, and the eighth resistor are connected in series, with one end electrically connected to the twenty-eighth pin of the Bluetooth audio chip, and the other end grounded; the third switch button, the fourth switch button, the ninth resistor, and the tenth resistor are connected in series, with one end electrically connected to the eighth resistor, and the other end electrically connected to the second switch button; the eleventh resistor and the... The eleventh and twelfth resistors are connected in series, with one end grounded and the other end connected to a 1.8V power supply. The common terminal of the eleventh and twelfth resistors is electrically connected to the twenty-eighth pin of the Bluetooth audio chip. The fourth capacitor has one end grounded and the other end electrically connected to the twenty-eighth pin of the Bluetooth audio chip. The fourth transient suppression diode has one end grounded and the other end connected to the fourth capacitor. The fifth transient suppression diode has one end grounded and the other end electrically connected to the fourth switch button. The sixth transient suppression diode has one end grounded and the other end electrically connected to the third switch button. The seventh transient suppression diode has one end grounded and the other end electrically connected to the second switch button. The eighth transient suppression diode has one end grounded and the other end electrically connected to the first switch button.

[0030] In this embodiment, the LCM display module includes a display interface, a ninth transient suppression diode, a tenth transient suppression diode, an eleventh transient suppression diode, a twelfth transient suppression diode, a thirteenth transient suppression diode, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, and a seventeenth resistor. An LCD screen is mounted on the display interface. One end of the ninth transient suppression diode is grounded, and the other end is electrically connected to the thirty-eighth pin of the Bluetooth audio chip. One end of the tenth transient suppression diode is grounded, and the other end is electrically connected to the thirty-fourth pin of the Bluetooth audio chip. One end of the eleventh transient suppression diode is grounded, and the other end is electrically connected to the sixty-fifth pin of the Bluetooth audio chip. One end of the twelfth transient suppression diode is grounded, and the other end is electrically connected to the thirty-seventh pin of the Bluetooth audio chip. The 67th pin is electrically connected; one end of the 13th transient suppression diode is grounded, and the other end is electrically connected to the 73rd pin of the Bluetooth audio chip; one end of the 13th resistor is electrically connected to the 67th pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the 14th resistor is electrically connected to the 65th pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the 15th resistor is electrically connected to the 73rd pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the 16th resistor is electrically connected to the 38th pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the 17th resistor is electrically connected to the 34th pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface.

[0031] In this embodiment, the wireless smart speaker further includes a power amplifier circuit for adjusting the amplitude of sound signals at different frequencies; the Bluetooth audio chip uses I... 2 The C protocol is connected to the power amplifier circuit for communication, and the power amplifier circuit is powered on and connected to a speaker.

[0032] In this embodiment, the wireless smart speaker further includes a power switch button circuit, which includes a fifth switch button, an eighteenth resistor, a nineteenth resistor, a fifth capacitor, a sixth capacitor, and a fourteenth transient suppression diode. The eighteenth resistor and the fifth capacitor are connected in series, with one end grounded and the other end electrically connected to the sixty-ninth pin of the Bluetooth audio chip. One end of the fourteenth transient suppression diode is grounded and the other end is electrically connected to the eighteenth resistor. The fifth switch button and the sixth capacitor are connected in series, with one end grounded and the other end electrically connected to the fourteenth transient suppression diode. One end of the nineteenth resistor is electrically connected to the sixth capacitor, and the other end is connected to a 3.8V power supply voltage.

[0033] In this embodiment, the wireless smart speaker further includes a power management circuit; the power management circuit includes an input power supply, a charging management circuit, a rechargeable battery, and a power supply, the output terminal of the input power supply is electrically connected to the input terminal of the charging management circuit, and the output terminal of the charging management circuit is electrically connected to the rechargeable battery and the power supply.

[0034] Specifically, this application integrates multiple functional circuits, including a Bluetooth audio module, a rotation adjustment circuit, a wireless media transmission system, a button circuit, an AUX IN interface, and an LCM display module. A control circuit provides unified and coordinated control of these circuits. A wireless communication connection is established between the Bluetooth audio module board and the mobile device, allowing users to play and control audio content without a physical connection. Furthermore, the integrated wireless media transmission system (supporting AirPlay or other protocols) further expands the speaker's compatibility with various wireless audio protocols, enhancing the flexibility and stability of audio transmission and meeting the needs of different user groups.

[0035] The rotary adjustment circuit allows for fine adjustment of the sound signal level or volume at different frequencies, enabling users to personalize the sound effects according to their preferences or environmental characteristics, significantly improving the subjective listening experience of audio playback.

[0036] The speaker's outer casing features an LCM display module that can display real-time information such as current playback status, volume, EQ settings, and connected devices, enhancing the visibility of user operations. Combined with a physical rotary adjuster and button circuitry, this design achieves an intuitive and convenient human-computer interaction method, making it particularly suitable for scenarios where touchscreen or voice control is not feasible.

[0037] With its AUX IN interface, the speaker supports not only wireless Bluetooth connectivity but also wired audio input, meeting the connection needs of various devices. Meanwhile, the button circuitry allows for quick switching between different operating modes (such as Bluetooth mode, AUX input mode, and wireless media transmission mode), enhancing the device's adaptability and practicality.

[0038] The control circuit communicates with the button circuit and the rotation adjustment circuit through the GPIO interface, and through I 2 The C protocol communicates with the wireless media transmission system, and the various functional modules are connected through standardized interfaces, which facilitates system integration, function expansion and later maintenance, and improves the product's upgradeability and compatibility.

[0039] This application introduces advanced features such as wireless connectivity, intelligent interaction, and multi-protocol support into traditional portable speakers, promoting the development of speaker products towards intelligence and multi-functionality, and meeting users' high-quality audio needs in various scenarios such as home, office, and outdoors.

[0040] The wireless smart speaker supports four audio input modes: WiFi, Bluetooth, UAC sound card, and AUX, and offers five sound effect modes to meet diverse user needs in different usage scenarios. Simultaneously, the speaker features a built-in 5100mAh high-capacity battery and an intelligent power management system, significantly improving the device's battery life. Furthermore, this application introduces WeChat mini-program control functionality, further enhancing the convenience and intelligence of device operation.

[0041] Bluetooth BT mode: Users can connect to the speaker via Bluetooth on their mobile phones or other devices to achieve wireless audio playback;

[0042] WiFi mode: After the user configures the speaker for network, the speaker can be remotely controlled to play audio via mobile phone in the same local area network environment;

[0043] AUX mode: Connect to a playback device with AUX output function via the AUX audio interface to achieve wired audio playback;

[0044] UAC mode: Connect the speakers to the computer and use them as an external sound card to achieve high-quality audio playback.

[0045] This wireless smart speaker offers five preset sound effect modes, each suitable for different scenarios and listening preferences.

[0046] Premium Sound Reproduction Mode: Faithfully reproduces the original sound source, suitable for high-fidelity audio playback; Live Mode: Enhances the sense of space and presence, simulating the atmosphere of a live performance; Clear Vocal Mode: Highlights vocal details, suitable for podcasts, voice chat, and other scenarios; Gentle and Soft Mode: Soft tone, suitable for listening before bed or in a relaxing atmosphere; Silver Care Mode: Optimizes voice clarity and low-frequency response for middle-aged and elderly users, improving listening comfort.

[0047] To meet the need for rapid switching between input sources and sound effect modes, this application supports multi-level menu operations via physical buttons and rotary encoders:

[0048] After the speaker is powered on, it will enter the main volume control page by default. You can adjust the volume by rotating the knob.

[0049] On the main page, press the Mode button briefly to enter the mode selection page. You can switch the input source by using the Mode button and the knob. After confirming, press the knob or if there is no operation within 5 seconds, you will return to the main page.

[0050] Press the knob on the main page to enter the EQ selection page. You can switch sound effect modes by pressing the knob. After confirming, press the knob again or if there is no operation within 5 seconds, return to the main page.

[0051] The button circuit is connected to the KEYSENSE pin of the Bluetooth audio chip to achieve efficient recognition and response to button events.

[0052] To address the issue of insufficient battery life in traditional portable speakers, this application employs a 5100mAh high-capacity battery combined with an intelligent power management algorithm. The system dynamically adjusts the output power based on the current battery voltage and charging status, extending device usage time while ensuring sound quality, thus meeting the needs of extended outdoor or mobile use. The power management circuit utilizes a known, existing circuit structure.

[0053] To optimize the human-computer interaction experience, this patent introduces a WeChat mini-program remote control function. After binding the speaker device to the mini-program, users can conveniently perform the following:

[0054] Operations include mode switching, EQ sound effect switching, and Bluetooth name configuration. Control commands are encrypted before being sent, and decrypted and parsed upon receipt by the device, ensuring the security and stability of the communication process and further enhancing the device's intelligence and operability.

[0055] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wireless intelligent sound box, which is wirelessly connected with a mobile terminal, comprising a sound box outer shell (1), characterized in that, The speaker housing (1) houses a Bluetooth audio module board, a rotary adjustment circuit for adjusting the level or volume of sound signals at different frequencies, a wireless media transmission system for wireless audio transmission between devices, and a button circuit for mode switching. The Bluetooth audio module board has a control circuit, and the speaker housing (1) has an AUX IN interface and an LCM display module, which are electrically connected to the control circuit. The control circuit is wirelessly connected to the mobile terminal via Bluetooth. The control circuit, button circuit, and rotary adjustment circuit are all connected via GPIO interfaces. The wireless media transmission system is connected via I... 2 The C protocol is connected to the control circuit for communication, and an antenna is installed on the control circuit.

2. The wireless smart speaker of claim 1, wherein, The control circuit includes a Bluetooth audio chip; the 28th pin of the Bluetooth audio chip is electrically connected to the button circuit, and the 31st, 32nd, and 35th pins of the Bluetooth audio chip are all electrically connected to the rotation adjustment circuit; the 24th pin of the Bluetooth audio chip is connected to a 3.8V power supply voltage, and the 34th, 38th, 65th, 67th, and 73rd pins of the Bluetooth audio chip are all electrically connected to the LCM display module.

3. The wireless smart speaker of claim 2, wherein, The rotation adjustment circuit includes a knob encoder, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first transient suppression diode, a second transient suppression diode, a third transient suppression diode, a first capacitor, a second capacitor, and a third capacitor; one end of the first capacitor is grounded, and the other end is electrically connected to the thirty-first pin of the Bluetooth audio chip; one end of the second capacitor is grounded, and the other end is electrically connected to the thirty-second pin of the Bluetooth audio chip; one end of the first resistor is electrically connected to the second capacitor, and the other end is electrically connected to the second pin of the knob encoder; one end of the second resistor is electrically connected to the first capacitor, and the other end is electrically connected to the first pin of the knob encoder; the third, fourth, sixth, and seventh pins of the knob encoder are all grounded. The first transient suppression diode, the third resistor, and the fourth resistor are connected in series, with one end electrically connected to the first pin of the rotary encoder and the other end grounded. The common terminal of the third resistor and the fourth resistor is connected to a 3.3V power supply voltage. The common terminal of the third resistor and the first transient suppression diode is electrically connected to the first resistor. One end of the second transient suppression diode is grounded and the other end is electrically connected to the second resistor. The fifth resistor and the third capacitor are connected in series, with one end electrically connected to the fifth pin of the rotary encoder and the other end grounded. The third transient suppression diode and the sixth resistor are connected in series, with one end connected to a 3.3V power supply voltage and the other end electrically connected to the fifth pin of the rotary encoder. The common terminal of the third transient suppression diode and the sixth resistor is electrically connected to the fifth resistor.

4. The wireless smart speaker of claim 3, wherein, The button circuit includes a first switch button, a second switch button, a third switch button, a fourth switch button, a fourth transient suppression diode, a fifth transient suppression diode, a sixth transient suppression diode, a seventh transient suppression diode, an eighth transient suppression diode, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, and a fourth capacitor; the first switch button, the second switch button, the seventh resistor, and the eighth resistor are connected in series, with one end electrically connected to the twenty-eighth pin of the Bluetooth audio chip, and the other end grounded; the third switch button, the fourth switch button, the ninth resistor, and the tenth resistor... The four resistors are connected in series, with one end electrically connected to the eighth resistor and the other end electrically connected to the second switch button; the eleventh and twelfth resistors are connected in series, with one end grounded and the other end connected to a 1.8V power supply voltage, and the common terminal of the eleventh and twelfth resistors is electrically connected to the twenty-eighth pin of the Bluetooth audio chip; the fourth capacitor has one end grounded and the other end electrically connected to the twenty-eighth pin of the Bluetooth audio chip; the fourth transient suppression diode has one end grounded and the other end connected to the fourth capacitor; the fifth transient suppression diode has one end grounded and the other end electrically connected to the fourth switch button. One end of the sixth transient suppression diode is grounded, and the other end is electrically connected to the third switch button. One end of the seventh transient suppression diode is grounded, and the other end is electrically connected to the second switch button. One end of the eighth transient suppression diode is grounded, and the other end is electrically connected to the first switch button.

5. The wireless smart speaker of claim 4, wherein, The LCM display module includes a display interface, a ninth transient suppression diode, a tenth transient suppression diode, an eleventh transient suppression diode, a twelfth transient suppression diode, a thirteenth transient suppression diode, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, and a seventeenth resistor. An LCD screen is mounted on the display interface. One end of the ninth transient suppression diode is grounded, and the other end is electrically connected to the thirty-eighth pin of the Bluetooth audio chip. One end of the tenth transient suppression diode is grounded, and the other end is electrically connected to the thirty-fourth pin of the Bluetooth audio chip. One end of the eleventh transient suppression diode is grounded, and the other end is electrically connected to the sixty-fifth pin of the Bluetooth audio chip. One end of the twelfth transient suppression diode is grounded, and the other end is electrically connected to the sixty-seventh pin of the Bluetooth audio chip. The device has seven electrical connections; one end of the thirteenth transient suppression diode is grounded, and the other end is electrically connected to the seventy-third pin of the Bluetooth audio chip; one end of the thirteenth resistor is electrically connected to the sixty-seventh pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the fourteenth resistor is electrically connected to the sixty-fifth pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the fifteenth resistor is electrically connected to the seventy-third pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the sixteenth resistor is electrically connected to the thirty-eighth pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface; one end of the seventeenth resistor is electrically connected to the thirty-fourth pin of the Bluetooth audio chip, and the other end is electrically connected to the display interface.

6. The wireless smart speaker of claim 1, wherein, The wireless intelligent sound box further comprises a power amplification circuit for adjusting the amplitude of sound signals of different frequencies; a Bluetooth audio chip is connected to the power amplification circuit through I 2 A C protocol is in communication connection with the power amplification circuit, and a loudspeaker is electrically connected to the power amplification circuit.

7. The wireless smart speaker of claim 1, wherein, The wireless smart speaker also includes a power switch button circuit, which includes a fifth switch button, an eighteenth resistor, a nineteenth resistor, a fifth capacitor, a sixth capacitor, and a fourteenth transient suppression diode. The eighteenth resistor and the fifth capacitor are connected in series, with one end grounded and the other end electrically connected to the sixty-ninth pin of the Bluetooth audio chip. One end of the fourteenth transient suppression diode is grounded and the other end is electrically connected to the eighteenth resistor. The fifth switch button and the sixth capacitor are connected in series, with one end grounded and the other end electrically connected to the fourteenth transient suppression diode. One end of the nineteenth resistor is electrically connected to the sixth capacitor, and the other end is connected to a 3.8V power supply voltage.

8. The wireless smart speaker of claim 1, wherein, The wireless smart speaker also includes a power management circuit; the power management circuit includes an input power supply, a charging management circuit, a rechargeable battery, and a power supply. The output terminal of the input power supply is electrically connected to the input terminal of the charging management circuit, and the output terminal of the charging management circuit is electrically connected to the rechargeable battery and the power supply.

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