A multifunctional integrated desktop device

Abstract

This utility model provides a multifunctional integrated desktop device, relating to the field of computer equipment expansion technology. The multifunctional integrated desktop device includes a device housing and a circuit board disposed within the device housing; an external power interface and multiple external function interfaces disposed on the device housing and electrically connected to the circuit board; the circuit board integrates a power management circuit, a data exchange and distribution circuit, an audio processing amplifier circuit, and functional circuits; the input terminal of the power management circuit is connected to the external power interface, and the output terminal of the power management circuit is used to supply power to the data exchange and distribution circuit, the audio processing amplifier circuit, and the functional circuits; the data terminal of the data exchange and distribution circuit is connected to the external function interfaces; the signal input terminal of the audio processing amplifier circuit is connected to the audio data output terminal of the data exchange and distribution circuit, and the amplification output terminal of the audio processing amplifier circuit is used to connect to a speaker.

Description

Technical Field

[0001] This utility model relates to the field of computer equipment extension technology, specifically to a multi-functional integrated desktop device. Background Technology

[0002] With the rapid development of information technology, the functional requirements of desktop electronic devices are becoming increasingly diversified. Office and home desktops typically need to accommodate multiple functional devices simultaneously, such as speakers, cameras, USB hubs, charging modules, and video interfaces. The traditional approach is to use multiple independent devices to perform these functions, resulting in complex connections between devices, messy cables, and large space occupation. This not only affects the tidiness and aesthetics of the desktop but also brings inconvenience to users and daily management. In addition, the separate power supply and signal transmission of multiple devices also lead to high energy consumption and poor coordination.

[0003] While some devices on the market integrate single or a few functions, such as speakers with USB ports or docking stations with integrated charging capabilities, their functional coverage is limited. They struggle to achieve truly multifunctional integrated collaboration, encompassing audio / video processing, data exchange, multi-device charging, and video output. Therefore, current technology lacks an integrated device that can highly integrate various commonly used desktop functions, providing unified power management and signal distribution, thus failing to meet users' demands for a simple and efficient office environment. Utility Model Content

[0004] In view of the above problems, this utility model provides a multi-functional integrated desktop device, which includes a device housing and further includes:

[0005] Circuit board disposed within the housing of the device;

[0006] An external power interface and multiple external function interfaces are disposed on the device housing and electrically connected to the circuit board;

[0007] The circuit board integrates a power management circuit, a data exchange and distribution circuit, an audio processing power amplifier circuit, and functional circuits.

[0008] The input terminal of the power management circuit is connected to the external power interface, and the output terminal of the power management circuit is used to supply power to the data exchange and distribution circuit, the audio processing power amplifier circuit and the functional circuit.

[0009] The data terminal of the data exchange and distribution circuit is connected to the external functional interface;

[0010] The signal input terminal of the audio processing power amplifier circuit is connected to the audio data output terminal of the data exchange and distribution circuit, and the amplification output terminal of the audio processing power amplifier circuit is used to connect to a speaker.

[0011] In one possible implementation, the power management circuit includes:

[0012] A multi-channel power switching control unit, wherein the input terminal of the multi-channel power switching control unit is connected to the external power interface;

[0013] A fast charging protocol negotiation module, which is connected to the control terminal of the multi-power switching control unit;

[0014] A multi-channel buck regulator circuit, wherein the input terminal of the multi-channel buck regulator circuit is connected to the output terminal of the multi-channel power switching control unit;

[0015] A fast full-compatibility management chip is provided, the input of which is connected to the output of the multi-channel buck regulator circuit, and the output of which is connected to the external functional interface for charging.

[0016] In one possible implementation, the multi-functional all-in-one desktop device further includes:

[0017] A gear selection switch is disposed on the device housing, and the signal output terminal of the gear selection switch is electrically connected to the gear control pin of the fast charging protocol negotiation module.

[0018] In one possible implementation, the data exchange and allocation circuit includes:

[0019] A hub controller chip, wherein the upstream data port of the hub controller chip is used to connect to the host;

[0020] USB interface expansion chip, wherein the input end of the USB interface expansion chip is connected to the downstream data port of the hub controller chip;

[0021] A high-speed signal switch chip, wherein the input terminal of the high-speed signal switch chip is connected to the high-speed data port of the hub controller chip, and the output terminal of the high-speed signal switch chip is connected to different external functional interfaces.

[0022] In one possible implementation, the audio processing power amplifier circuit includes:

[0023] An audio decoding chip, wherein the data port of the audio decoding chip is connected to the data exchange and distribution circuit;

[0024] An audio power amplifier chip, wherein the input terminal of the audio power amplifier chip is connected to the analog audio output terminal of the audio decoding chip;

[0025] An audio signal switching chip is provided, wherein the input terminals of the audio signal switching chip are respectively connected to the output terminal of the audio decoding chip and an external audio input source, and the output terminal of the audio signal switching chip is connected to the input terminal of the audio power amplifier chip.

[0026] In one possible implementation, the functional circuit includes a video-audio circuit, which comprises:

[0027] A camera module, wherein the camera module is connected to the data exchange and distribution circuit via its USB interface;

[0028] A microphone, the signal output terminal of which is connected to the data exchange and distribution circuit or the audio processing power amplifier circuit.

[0029] In one possible implementation, the functional circuitry includes a Bluetooth module, the Bluetooth module comprising:

[0030] A Bluetooth audio SOC chip, wherein the analog audio output terminal of the Bluetooth audio SOC chip is connected to the input terminal of the audio signal switching switch chip of the audio processing power amplifier circuit.

[0031] In one possible implementation, the functional circuit includes a switch control circuit, which comprises:

[0032] Function buttons and status indicator lights are located on the device housing;

[0033] The microcontroller has its signal input terminal connected to the function button, and its control output terminal connected to the control terminals of the status indicator, power management circuit, and audio signal switching chip, respectively.

[0034] In one possible implementation, the external functional interface includes a USB data interface and a memory card slot interface supported by the data exchange and distribution circuit, and a USB charging interface supported by the fast full-distribution management chip.

[0035] In one possible implementation, the external functional interface further includes an HDMI video output interface, the signal input terminal of which is electrically connected to the high-speed data port of the data exchange and distribution circuit.

[0036] The above-described one or more technical solutions in the embodiments of this application have at least one or more of the following technical effects:

[0037] This utility model provides a multi-functional integrated desktop device that highly integrates power management circuits, data exchange and distribution circuits, audio processing amplifier circuits, and functional circuits onto a circuit board. It also features an external power interface and multiple functional interfaces, effectively solving problems such as complex connections, large space occupation, high energy consumption, and poor coordination caused by traditional independent setups of multiple devices. Specifically, the integrated design and compact layout of the internal functional modules significantly reduce the number of desktop devices. Combined with a unified external power interface and internal power management circuit, it avoids the clutter of cables from multiple devices being powered separately, greatly saving desktop space and improving tidiness. The data exchange and distribution circuit, as the core hub, realizes centralized signal distribution and interaction between external functional interfaces and modules such as the audio processing amplifier circuit. This simplifies signal transmission paths and improves the collaborative efficiency of audio and video processing, data exchange, and multi-device charging. The integrated audio processing amplifier circuit directly supports speaker connection. Combined with extended video interfaces and other functional modules, it covers common desktop needs such as audio and video output, multi-device charging, and data interaction, truly achieving one-stop multi-functional collaborative work and effectively meeting users' urgent needs for a simple and efficient office environment.

[0038] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0039] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the overall circuit module in an embodiment of this utility model;

[0041] Figure 2 This is a schematic diagram of the internal circuit module of the power management circuit in an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the internal modules of the data exchange and distribution circuit in an embodiment of this utility model;

[0043] Figure 4 This is a schematic diagram of the internal modules of the audio processing power amplifier circuit in an embodiment of this utility model;

[0044] Figure 5 This is a schematic diagram of the internal circuit modules of the functional circuit in the embodiment of this utility model;

[0045] Figure 6 This is a schematic diagram of the external functional interface circuit module in an embodiment of the present utility model;

[0046] Figure 7 This is a schematic diagram of the multi-power switching control unit circuit in an embodiment of the present invention;

[0047] Figure 8 This is a schematic diagram of the PD protocol controller circuit in an embodiment of the present invention;

[0048] Figure 9 This is a schematic diagram of the protocol identification chip circuit in an embodiment of the present invention;

[0049] Figure 10 This is a schematic diagram of the circuit principle of the step-down voltage regulator chip U1 in this embodiment of the present invention;

[0050] Figure 11 This is a schematic diagram of the circuit principle of the step-down voltage regulator chip U4 in this embodiment of the present invention;

[0051] Figure 12 This is a schematic diagram of the circuit principle of the step-down voltage regulator chip U5 in this embodiment of the present utility model;

[0052] Figure 13 This is a circuit diagram of the step-down regulator chip U16 in this embodiment of the present invention;

[0053] Figure 14 This is a schematic diagram of the buck regulator chip U17 in this embodiment of the present invention;

[0054] Figure 15 This is a circuit schematic diagram of the fast full-matching management chip in this embodiment of the present invention;

[0055] Figure 16 This is a schematic diagram of the gear selection switch circuit in an embodiment of the present utility model;

[0056] Figure 17 This is a schematic diagram of the circuit principle of the inter-board connector JP3 in this embodiment of the present utility model;

[0057] Figure 18 This is a schematic diagram of the hub controller chip circuit in an embodiment of the present utility model;

[0058] Figure 19 This is a schematic diagram of the USB interface expansion chip circuit in an embodiment of the present invention.

[0059] Figure 20This is a schematic diagram of the high-speed signal switch chip circuit in an embodiment of the present invention;

[0060] Figure 21 This is a schematic diagram of the external high-speed interface circuit in an embodiment of this utility model;

[0061] Figure 22 This is a schematic diagram of the memory card bridging controller chip circuit in an embodiment of the present invention;

[0062] Figure 23 This is a schematic diagram of the TF card slot circuit in an embodiment of the present invention;

[0063] Figure 24 This is a schematic diagram of the SD card slot circuit in an embodiment of the present invention;

[0064] Figure 25 This is a schematic diagram of the audio decoding chip circuit in an embodiment of the present invention;

[0065] Figure 26 This is a schematic diagram of the audio power amplifier chip circuit in an embodiment of the present invention;

[0066] Figure 27 This is a schematic diagram of the audio signal switching chip circuit in an embodiment of the present invention.

[0067] Figure 28 This is a schematic diagram of the Bluetooth audio SOC chip circuit in an embodiment of this utility model.

[0068] Figure 29 This is a three-dimensional schematic diagram of the first side of the overall structure in an embodiment of this utility model;

[0069] Figure 30 This is a two-dimensional perspective view of the overall structure in an embodiment of the present utility model;

[0070] Figure 31 This is a schematic diagram of the internal structure in an embodiment of the present utility model.

[0071] Explanation of reference numerals in the attached diagram: 10. Device housing; 20. Circuit board; 100. Power management circuit; 110. Multi-channel power switching control unit; 120. Fast charging protocol negotiation module; 130. Multi-channel buck regulator circuit; 140. Fast charging distribution management chip; 150. Speed ​​selection switch; 200. Data exchange and distribution circuit; 210. Hub controller chip; 220. USB interface expansion chip; 230. High-speed signal switch chip; 300. Audio processing power amplifier circuit; 310. Audio decoding chip; 320. Audio power amplifier chip; 33. 0. Audio signal switching chip; 400. Functional circuit; 410. Video and audio circuit; 411. Camera module; 412. Microphone; 420. Bluetooth module; 421. Bluetooth audio SOC chip; 430. Switch control circuit; 431. Function button; 432. Status indicator light; 433. Microcontroller; 500. External power interface; 600. External function interface; 610. USB data interface; 620. USB charging interface; 630. HDMI video output interface; 640. Memory card slot interface; 700. Speaker. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0073] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0074] The overall concept of the technical solution provided by this utility model is as follows:

[0075] Please see Figures 1 to 6 , Figures 29 to 31 The multi-functional all-in-one desktop device includes a device housing 10, and also includes:

[0076] The circuit board 20 is disposed inside the device housing 10; the device housing 10 is the main structure and external encapsulation of the entire device. In this embodiment, the device housing 10 can adopt a combination structure of upper and lower covers, which are tightly fixed by screws or buckles. The material of the device housing 10 is preferably aluminum alloy, which not only ensures good heat dissipation performance, but also provides sufficient structural strength and metallic texture. Of course, in other embodiments, engineering plastics (such as ABS, PC) can also be used to reduce costs, or a combination of metal and plastic can be used.

[0077] The device housing 10 is typically designed as a cuboid, cylinder, or streamlined elliptical cylinder suitable for desktop placement. Inside the device housing 10, one or more circuit boards 20 are installed. The circuit boards 20 are fixed to the inside of the housing by screw posts or positioning slots to ensure their stability and prevent wobbling. The circuit boards 20 adopt a high-density integration and multi-layer board design, concentrating all functional circuits 400 on a single board.

[0078] An external power interface 500 and multiple external function interfaces 600 are provided on the device housing 10 and electrically connected to the circuit board 20. Several holes are provided on the device housing 10 for installing various interfaces. These interfaces are directly soldered or plugged into the circuit board 20 through their pins or connecting wires, thereby realizing electrical connection with the internal circuit.

[0079] These interfaces can be divided into external power interface 500 and external function interface 600. External power interface 500 is the main power input port of the device. In this embodiment, the interface can be a traditional DC-in round hole interface, which is an adapter power input. Its advantages are simple structure and low cost. External function interface 600 is a bridge connecting the device with external devices and is responsible for realizing functions such as data transmission, audio and video transmission, and device charging.

[0080] The circuit board 20 integrates a power management circuit 100, a data exchange and distribution circuit 200, an audio processing power amplifier circuit 300, and a functional circuit 400.

[0081] The input terminal of the power management circuit 100 is connected to the external power interface 500, and the output terminal of the power management circuit 100 is used to power the data exchange and distribution circuit 200, the audio processing power amplifier circuit 300, and the functional circuit 400. The power management circuit 100 is responsible for providing a stable and reliable power supply to all other functional modules. The input terminal of the power management circuit 100 is directly connected to the external power interface 500 of the device, receives power input from the external power source, and performs voltage conversion, current regulation, and power distribution according to the needs of the device.

[0082] The data terminal of the data exchange and distribution circuit 200 is connected to the external functional interface 600. The data exchange and distribution circuit 200 is electrically connected to various external functional interfaces 600 through its data terminal and is responsible for receiving, distributing and transmitting data.

[0083] The signal input terminal of the audio processing power amplifier circuit 300 is connected to the audio data output terminal of the data exchange and distribution circuit 200, and the amplification output terminal of the audio processing power amplifier circuit 300 is used to connect to the speaker 700. The audio processing power amplifier circuit 300 obtains audio data signals from the data exchange and distribution circuit 200, and after signal processing and power amplification, drives the speaker 700 to work through its amplification output terminal.

[0084] By highly integrating the power management circuit 100, data exchange and distribution circuit 200, audio processing power amplifier circuit 300 and functional circuit 400 onto the circuit board 20, and configuring an external power interface 500 and multiple functional interfaces, the problems of complex connection, large space occupation, high energy consumption and poor coordination caused by the traditional independent setting of multiple devices are effectively solved. Specifically, the integrated design and compact layout of the internal functional modules significantly reduce the number of desktop devices. Combined with a unified external power interface 500 and internal power management circuit 100, it avoids the clutter of cables from multiple devices being powered separately, greatly saving desktop space and improving tidiness. The data exchange and distribution circuit 200, as the core hub, centralizes signal distribution and interaction between the external functional interface 600 and modules such as the audio processing amplifier circuit 300. This simplifies signal transmission paths and improves the collaborative efficiency of audio and video processing, data exchange, and multi-device charging. The integrated audio processing amplifier circuit 300 directly supports speaker 700 connection. Combined with extended video interfaces and other functional modules, it covers common desktop needs such as audio and video output, multi-device charging, and data interaction, truly achieving one-stop multi-functional collaborative work and effectively meeting users' urgent need for a simple and efficient office environment.

[0085] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. 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.

[0086] In the exemplary embodiments, please refer to Figure 2 The power management circuit 100 includes:

[0087] A multi-source power switching control unit 110 has its input terminal connected to an external power interface 500. The multi-source power switching control unit 110 is the entry point of the power management circuit 100, responsible for managing power input from different external power sources and performing intelligent switching. In one embodiment, please refer to... Figure 7The multi-channel power switching control unit 110 consists of a MOSFET array and corresponding control circuitry. Specifically, the MOSFET array includes multiple P-channel MOSFETs acting as electronic switches, such as U6, U7, U8, U9, and U10 (model AGM30P10AP). The drains of these MOSFETs are connected to different potential input power paths, while their sources are connected to a common point, namely the output of the unit, ready to supply power to the subsequent buck regulator circuit. The control circuitry consists of multiple N-channel enhancement-mode small-signal field-effect transistors, such as Q2, Q3, Q4, and Q5 (model 2N7002). The gates of these transistors receive control signals from the fast charging protocol negotiation module 120, and their drains are connected to the gates of the aforementioned P-channel MOSFETs, used to precisely control the on / off state of each MOSFET.

[0088] The fast charging protocol negotiation module 120 is connected to the control terminal of the multi-power switching control unit 110. The main function of the fast charging protocol negotiation module 120 is to communicate with the external power source, negotiate and determine the optimal charging protocol and parameters to ensure the device can charge safely at the fastest speed. For more details, please refer to... Figure 8 and Figure 9 The fast charging protocol negotiation module 120 includes an IF8699 protocol identification chip U11 and an SC8014 PD protocol controller U14. U11 is a high-performance, highly integrated fast charging protocol identification chip that supports multiple mainstream fast charging protocols, including QC2.0 / 3.0 / 4.0+, PD2.0 / 3.0, PPS, AFC, FCP, SCP, and VOOC. U11's data communication pins are connected to the corresponding pins of the external power interface 500 or external function interface 600, enabling communication with the upstream power adapter. Its core function is to comprehensively detect and identify the type of the connected adapter and its supported fast charging modes, and it also possesses a certain power negotiation capability. U14, as the PD protocol controller, hands with the upstream Type-C power supply to negotiate the required input voltage and controls the aforementioned multi-power switching control unit 110 to achieve automatic voltage input switching, while also providing overvoltage, overcurrent, and short-circuit protection functions.

[0089] A multi-channel buck regulator circuit 130 has its input connected to the output of a multi-channel power switching control unit 110. The main function of the multi-channel buck regulator circuit 130 is to convert the high-voltage input from the multi-channel power switching control unit 110 into multiple stable low-voltage outputs to meet the power requirements of different functional modules within the device. (See also...) Figures 10 to 14The multi-channel buck regulator circuit 130 includes buck regulator chips such as U1, U4, U5, U16, and U17, which output voltages of 1.1V, 3.3V, and 5V respectively, providing a stable power supply for each functional circuit 400.

[0090] The fast-full power distribution management chip 140 has its input connected to the output of the multi-channel buck regulator circuit 130, and its output connected to the external functional interface 600 for charging. The fast-full power distribution management chip 140 is responsible for receiving the internally converted power and safely, efficiently, and intelligently distributing it to the various external interfaces used for charging. Please refer to [link to relevant documentation]. Figure 15 The fast and efficient distribution management chip 140 can use the U12 chip with model number IP6565. The U12 is an intelligent distribution chip designed for multi-port charging scenarios. Its core responsibility is to take over and intelligently manage the power from the internal 5V bus and distribute it to one or more downstream charging ports to charge external devices quickly, safely and efficiently.

[0091] For further details, please refer to Figure 30 Multifunctional all-in-one desktop devices also include:

[0092] A power level selection switch 150 is mounted on the device housing 10. The signal output terminal of the power level selection switch 150 is electrically connected to the power level control pin of the fast charging protocol negotiation module 120. The power level selection switch 150 is a mechanical switch, such as a single-pole double-throw (SPDT) toggle switch or rotary switch. It is physically mounted and fixed to the side wall or front panel of the device housing 10, with its knob or lever portion exposed outside the housing for easy manual operation by the user. The power level selection switch 150 is a user interaction component used to manually select different charging modes or voltage levels to meet the charging needs of different devices or optimize charging efficiency. For details, please refer to [link to relevant documentation]. Figure 16 The speed selection switch 150 includes switch SW1. The signal output terminal of switch SW1, i.e., its moving contact or intermediate pin, is electrically connected to the speed control pin of the fast charging protocol negotiation module 120 via a wire or circuit board 20. In this embodiment, the fast charging protocol negotiation module 120 is the protocol identification chip U11 mentioned above. The other two fixed contacts of switch SW1 are respectively connected to reference voltages representing different speeds. For example, one is connected to a high level (3.3V) to represent the "100W" speed, and the other is connected to ground (GND) to represent the "65W" speed.

[0093] In the exemplary embodiments, please refer to Figure 3 The data exchange and distribution circuit 200 includes:

[0094] Hub controller chip 210, its upstream data port is used to connect to the host; as the central hub for data distribution, hub controller chip 210 is responsible for receiving data signals from the host and distributing them to multiple downstream ports. For more details, please refer to... Figure 17 and Figure 18 The hub controller chip 210 uses the SG8652 U6 chip, a high-performance USB 3.0 hub controller chip 210, which serves as the core hub of the entire data exchange and distribution circuit 200. The upstream data port of the U6 connects to the host (such as a laptop) via an inter-board connector JP3, receiving all data signals from the host. This design facilitates internal modular connection and assembly. The U6 expands the upstream high-speed USB 3.0 data channel into multiple independent downstream data ports. These ports include both USB 3.0 high-speed data channels for connecting high-speed peripherals and USB 2.0 data channels, providing a foundation for connecting internal functional modules and external interfaces with different speed requirements. The chip also manages the power distribution and enumeration process of the downstream ports.

[0095] USB interface expansion chip 220, the input terminal of which is connected to the downstream data port of hub controller chip 210; USB interface expansion chip 220 is used to expand the number of USB interfaces to support more downstream devices. For more details, please refer to... Figure 19 To meet the USB 2.0 channel requirements of multiple internal functional modules (such as audio chips, network chips, card reader / writer controllers, etc.), this invention adds a USB interface expansion chip U3. The input of this chip is connected to a downstream data port of the hub controller chip U6, and its output expands this USB 2.0 signal into four independent USB 2.0 channels, which are then distributed to each internal functional circuit 400. This design greatly increases the connectivity of the USB 2.0 interface without occupying valuable high-speed channels, thus achieving optimized configuration of interface resources.

[0096] The high-speed signal switch chip 230 has its input terminal connected to the high-speed data port of the hub controller chip 210, and its output terminal connected to various external functional interfaces 600. The high-speed signal switch chip 230 is used for switching and distributing high-speed data signals, ensuring the stability and efficiency of high-speed data transmission. For more details, please refer to [link to relevant documentation]. Figure 20 and Figure 21To achieve dynamic and flexible allocation of limited high-speed channels, this invention employs a high-speed signal switch chip 230U7. The input of this chip is connected to a downstream high-speed data port of the hub controller chip U6, while its output is a switchable output channel capable of selectively routing the USB 3.0 signal to one of two different external functional interfaces 600, for example, switching between two Type-C interfaces or providing alternate mode support for one interface. In this embodiment, one of its outputs is supplied to the external high-speed interface J1, ensuring that this interface can obtain native high-speed data transmission capabilities.

[0097] In one embodiment, as an important extension of the data exchange and allocation function, this invention also integrates TF / SD card read / write functionality. Please refer to... Figures 22 to 24 This part consists of a dedicated memory card bridge controller chip U1 and corresponding card slots, where CON1 is an SD card slot and CON2 is a TF card slot. Chip U1 is connected to an expansion port provided by the aforementioned USB interface expansion chip U3 via its upstream interface through a pin header connection or other means. Thus, the card reader function is integrated into the entire hub system as a standard USB device, enabling high-speed reading and writing of memory cards.

[0098] In the exemplary embodiments, please refer to Figure 4 The audio processing power amplifier circuit 300 includes:

[0099] Audio decoding chip 310, whose data port is connected to data exchange and distribution circuit 200; audio decoding chip 310 is responsible for decoding digital audio signals into analog audio signals; for details, please refer to Figure 25 The data port of the audio decoding chip U9 serves as the signal input, directly connected to the hub controller chip U6 in the data exchange and distribution circuit 200, receiving digital audio data streams from the host. The integrated digital-to-analog converter within chip U9 decodes the received digital audio signal, converting it into an analog audio signal, and outputting it from its analog audio output terminals (left channel DACL and right channel DAR). Furthermore, chip U9 is externally equipped with a bias network and detection circuitry, and its analog output can be directly led out to an external audio input / output interface to realize the headphone output or line-out function of this device.

[0100] Audio power amplifier chip 320, the input terminal of which is connected to the analog audio output terminal of audio decoding chip 310; audio power amplifier chip 320 amplifies the decoded analog audio signal to drive speaker 700 to produce sound; for details, please refer to Figure 26The audio power amplifier chip U10 uses a Class-D dual-channel audio power amplifier. Class-D amplifiers have the advantages of high efficiency and low heat generation, making them particularly suitable for use in integrated devices. The input of U10 receives analog audio signals from the preamplifier. The amplified output of U10 (left channel output POW_L and right channel output POW_R) outputs the amplified audio signal. This output signal passes through an LC filter circuit composed of inductors and capacitors to filter out high-frequency switching noise and restore a clean audio waveform. Finally, it directly drives the device's built-in left and right speakers 700, providing sufficient loudness and fidelity.

[0101] An audio signal switching chip 330 has its input terminals connected to the output terminal of an audio decoding chip 310 and an external audio input source, respectively. Its output terminal is connected to the input terminal of an audio power amplifier chip 320. The audio signal switching chip 330 is used to switch audio signal sources and supports the connection of external audio input sources; for details, please refer to [link to relevant documentation]. Figure 27 To support multiple audio source inputs and achieve seamless switching, this invention adds an audio signal switching chip U13, which is a dual-channel SPDT (single-pole double-throw) analog switch chip. The first channel of U13 connects to the analog output of the audio decoding chip U9, representing the USB wired audio signal from the host computer. The second channel of U13 connects to an external audio input source; in this embodiment, this input source is from the analog audio output of the Bluetooth module 420, representing the wireless audio signal. The output of U13 is then connected to the input of the audio power amplifier chip U10. By controlling the switching selection pin of U13, users can select between the USB audio and Bluetooth audio analog signals and send the selected signal to the power amplifier U10. This achieves seamless hardware-level switching between wired and wireless audio, allowing users to freely choose the audio source as needed without requiring cumbersome software settings on a computer.

[0102] In the exemplary embodiments, please refer to Figure 5 , Figure 29 and Figure 31 The functional circuit 400 includes a video and audio circuit 410, which includes:

[0103] The camera module 411 is connected to the data exchange and distribution circuit 200 via its USB interface. The camera module 411 is a high-definition camera assembly integrating an image sensor, lens, control chip, and USB interface. Its USB interface serves as both a data and power channel, directly connecting to the hub controller chip U6 in the data exchange and distribution circuit 200. The USB control chip inside the camera module 411 digitizes and encodes the analog video signals acquired by the image sensor, packaging them into a standard USB video data stream. This data stream is then uploaded to the host computer via the high-speed USB channel and the data exchange and distribution circuit 200. This allows the device to be recognized by the system as a standard video input device without requiring additional driver installation, thereby enabling functions such as video calls, online conferencing, live streaming, and monitoring.

[0104] Microphone 412 has its signal output terminal connected to data exchange and distribution circuit 200 or audio processing power amplifier circuit 300. Microphone 412 contains one or more microphone 412 units for picking up speech and audio signals from the environment. The microphone 412 module itself integrates an analog-to-digital converter, which can directly convert the acquired analog speech signals into digital audio streams, and then connects to the hub controller chip U6 via its USB interface and reports to the host.

[0105] In the exemplary embodiments, please refer to Figure 5 The functional circuit 400 includes a Bluetooth module 420, which enables the present invention to have wireless audio reception and playback functions, greatly expanding the application scenarios and convenience of the device; the Bluetooth module 420 includes:

[0106] The Bluetooth audio SOC chip 421 has its analog audio output connected to the input of the audio signal switching chip 330 in the audio processing power amplifier circuit 300. For details, please refer to... Figure 28The Bluetooth module 420 uses a highly integrated Bluetooth audio system-on-a-chip (SoC) U11. Its peripheral circuitry includes a 24MHz crystal oscillator to provide a precise system clock for the chip, ensuring stable RF frequency. The RF output of U11 is connected to the onboard antenna through an RF matching network composed of inductors and capacitors to optimize signal transmission efficiency and achieve reliable Bluetooth wireless communication. U11 is responsible for complete Bluetooth protocol stack processing and audio decoding. It receives digital audio signal streams transmitted from Bluetooth terminal devices such as mobile phones and tablets, decodes them internally, and converts them into analog audio signals through a built-in digital-to-analog converter (DAC). Its analog audio output is directly connected to the input of the audio signal switching chip U13 in the audio processing power amplifier circuit 300. This signal serves as an external audio input source, parallel to the analog output signal from the USB audio decoding chip U9, for selection by the switching switch.

[0107] Users can control the state of the audio signal switching chip U13 via the function button 431 on the device. When switching to the Bluetooth channel, the analog audio signal output by the Bluetooth chip U11 will be routed to the audio power amplifier chip U10 and finally played by the built-in speaker 700.

[0108] In the exemplary embodiments, please refer to Figure 5 and Figure 29 The functional circuit 400 includes a switch control circuit 430, which includes:

[0109] Function buttons 431 and status indicator lights 432 are located on the device housing 10. Function buttons 431 are conveniently located on the device housing 10 for user operation. In this embodiment, function buttons 431 mainly include a main power switch and an audio source switching button. The main power switch is a touch button used to control the power on and off of the device. The audio source switching button is another touch button used to cycle between different operating modes such as Bluetooth audio and USB audio input. Status indicator lights 432 are also located on the panel of the device housing 10 to provide users with intuitive feedback on the current device status.

[0110] The microcontroller 433 has its signal input terminals connected to the function button 431, and its control output terminals connected to the status indicator light 432, the power management circuit 100, and the control terminal of the audio signal switching chip 330. The microcontroller 433 is the core logic processing unit of the switch control circuit 430, and a low-cost, low-power microcontroller 433 with built-in flash memory and multiple peripheral interfaces can be selected. Its multiple signal input terminals are connected to the aforementioned function buttons 431 (power button, audio source switching button) and toggle switch SW1 via onboard circuitry, respectively, to detect the user's operating intentions in real time; its multiple control output terminals are connected to the status indicator 432, the control terminal of the power management circuit 100201, and the control terminal of the audio signal switching chip U13 in the audio processing power amplifier circuit 300, respectively, thereby achieving: driving LEDs to display corresponding colors and statuses; sending on or off enable signals to the power management chip according to the power button's command, thereby realizing software control of power supply to the entire device; and outputting high and low level signals according to the audio source switching button's command to control the channel selection of U13, realizing the switching of audio input sources.

[0111] In the exemplary embodiments, please refer to Figure 6 , Figure 29 and Figure 30 The external functional interface 600 includes a USB data interface 610 and a memory card slot interface 640 supported by the data exchange and distribution circuit 200, and a USB charging interface 620 supported by the fast full-distribution management chip 140. The USB data interface 610 includes multiple USB-A ports and at least one USB-C port. The data pins of these interfaces are directly connected to the downstream ports of the hub controller chip U6 in the data exchange and distribution circuit 200, and are used to connect external devices such as USB flash drives, external hard drives, keyboards, and mice to achieve high-speed data exchange. The memory card slot interface 640 refers to the aforementioned SD card slot CON1 and TF card slot CON2, which are connected to the data exchange and distribution circuit 200 through a dedicated memory card bridging controller chip U1 to enable direct read and write functionality to the memory card.

[0112] The USB charging port 620 can be a dedicated USB-A or USB-C port, and the power output of its power pins is not controlled and distributed by the fast full-compatibility management chip U12. The fast full-compatibility management chip U12 supports fast charging protocols such as QC and PD, can intelligently identify the type of device being charged, and provide it with optimized charging power of up to 100W, specifically designed for fast charging of devices such as mobile phones, tablets, and laptops.

[0113] For example, this invention uses a dedicated Type-C interface as an external power interface 500 to connect to the upstream power adapter. This interface connects to the PD protocol controller chip U14. U14 automatically performs a USB Power Delivery (PD) protocol handshake with the power adapter based on the power level set by the user via the toggle switch SW1, such as 65W or 100W, requesting the corresponding voltage and current input on behalf of the device. After successful negotiation, the power adapter provides the corresponding high-voltage DC power to the Type-C interface; subsequently, the power is sent to the fast power distribution management chip U12. U12 is the core of power distribution, integrating a high-efficiency step-down converter and complex digital control logic. U12 converts the input high voltage into various voltages required by the system (e.g., 5V, 9V, 12V, etc.), one important output being a stable 5V system bus, powering the device's own operation (e.g., data exchange distribution circuit 200, audio processing power amplifier circuit 300, etc.) and the standard USB interface. Chip U12 has multi-output control capabilities, enabling independent management and monitoring of the power output of multiple downstream ports. For USB charging ports 620 that require fast charging (such as specific USB-A ports), the corresponding port of U12 will use its integrated D+ and D- port detection and driving functions to conduct secondary protocol communication with the connected powered device (such as a mobile phone). Once the handshake is successful, U12 will intelligently boost the output voltage of the USB port from 5V to the highest fast charging voltage supported by the device (such as 9V or 12V), thereby achieving fast charging of the device. At the same time, the USB data ports 610 that also have data functions are powered by the 5V system bus provided by U12, and with the support of the hub of the data exchange and distribution circuit 200, data transmission and power supply are carried out simultaneously.

[0114] For further details, please refer to Figure 30 The external functional interface 600 also includes an HDMI video output interface 630. The signal input terminal of the HDMI video output interface 630 is electrically connected to the hub controller chip U6 of the data exchange and distribution circuit 200. The HDMI video output interface 630 is used to obtain the display signal output from the hub controller chip U6, connect and transmit it to an external display or projector.

[0115] Although preferred embodiments of the present invention 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 present invention.

[0116] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this utility model without departing from the spirit and scope of the embodiments of this utility model. Therefore, if these modifications and variations to the embodiments of this utility model fall within the scope of the claims of this utility model and their equivalents, then this utility model also intends to include these modifications and variations.

Claims

1. A multi-functional integrated desktop device comprising a device housing, characterized by, Also includes: Circuit board disposed within the housing of the device; An external power interface and multiple external function interfaces are disposed on the device housing and electrically connected to the circuit board; The circuit board integrates a power management circuit, a data exchange and distribution circuit, an audio processing power amplifier circuit, and functional circuits. The input terminal of the power management circuit is connected to the external power interface, and the output terminal of the power management circuit is used to supply power to the data exchange and distribution circuit, the audio processing power amplifier circuit and the functional circuit. The data terminal of the data exchange and distribution circuit is connected to the external functional interface; The signal input terminal of the audio processing power amplifier circuit is connected to the audio data output terminal of the data exchange and distribution circuit, and the amplification output terminal of the audio processing power amplifier circuit is used to connect to a speaker.

2. The multi-functional integrated desktop device of claim 1, wherein, The power management circuit includes: A multi-channel power switching control unit, wherein the input terminal of the multi-channel power switching control unit is connected to the external power interface; A fast charging protocol negotiation module, which is connected to the control terminal of the multi-power switching control unit; A multi-channel buck regulator circuit, wherein the input terminal of the multi-channel buck regulator circuit is connected to the output terminal of the multi-channel power switching control unit; A fast full-compatibility management chip is provided, the input of which is connected to the output of the multi-channel buck regulator circuit, and the output of which is connected to the external functional interface for charging.

3. The multi-functional integrated desktop device of claim 2, wherein, Also includes: A gear selection switch is disposed on the device housing, and the signal output terminal of the gear selection switch is electrically connected to the gear control pin of the fast charging protocol negotiation module.

4. The multi-functional integrated desktop device of claim 1, wherein, The data exchange and distribution circuit includes: A hub controller chip, wherein the upstream data port of the hub controller chip is used to connect to the host; USB interface expansion chip, wherein the input end of the USB interface expansion chip is connected to the downstream data port of the hub controller chip; A high-speed signal switch chip, wherein the input terminal of the high-speed signal switch chip is connected to the high-speed data port of the hub controller chip, and the output terminal of the high-speed signal switch chip is connected to different external functional interfaces.

5. The multi-functional integrated desktop device of claim 1, wherein, The audio processing power amplifier circuit includes: An audio decoding chip, wherein the data port of the audio decoding chip is connected to the data exchange and distribution circuit; An audio power amplifier chip, wherein the input terminal of the audio power amplifier chip is connected to the analog audio output terminal of the audio decoding chip; An audio signal switching chip is provided, wherein the input terminals of the audio signal switching chip are respectively connected to the output terminal of the audio decoding chip and an external audio input source, and the output terminal of the audio signal switching chip is connected to the input terminal of the audio power amplifier chip.

6. The multi-functional integrated desktop device of claim 1, wherein, The functional circuit includes a video and audio circuit, which includes: A camera module, wherein the camera module is connected to the data exchange and distribution circuit via its USB interface; A microphone, the signal output terminal of which is connected to the data exchange and distribution circuit or the audio processing power amplifier circuit.

7. The multi-functional integrated desktop device of claim 1, wherein, The functional circuit includes a Bluetooth module, which comprises: A Bluetooth audio SOC chip, wherein the analog audio output terminal of the Bluetooth audio SOC chip is connected to the input terminal of the audio signal switching switch chip of the audio processing power amplifier circuit.

8. The multi-functional integrated desktop device of claim 1, wherein, The functional circuit includes a switch control circuit, which includes: Function buttons and status indicator lights are located on the device housing; The microcontroller has its signal input terminal connected to the function button, and its control output terminal connected to the control terminals of the status indicator, power management circuit, and audio signal switching chip, respectively.

9. The multi-functional integrated desktop device of claim 2, wherein, The external functional interfaces include a USB data interface and a memory card slot interface supported by the data exchange and distribution circuit, and a USB charging interface supported by the fast full distribution management chip.

10. The multi-functional integrated desktop device of claim 1, wherein, The external functional interface also includes an HDMI video output interface, the signal input terminal of which is electrically connected to the high-speed data port of the data exchange and distribution circuit.

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