Four-in-one multimedia wireless WiFi device
The four-in-one multimedia wireless WiFi device integrates Bluetooth audio, fast charging and WiFi functions, which solves the problem of functional separation in the existing technology, realizes multi-functional integration and convenience, and meets the diverse needs of users in a limited space.
Patent Information
- Application Number
- CN202422896152.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-27
AI Technical Summary
In the prior art, WiFi routers, Bluetooth speakers, and fast charging devices are usually separate products, resulting in a lack of functional integration within a limited space, causing inconvenience to users, especially in the pursuit of a simple life scenario.
A four-in-one multimedia wireless WiFi device was designed, integrating Bluetooth audio, 120W wired fast charging for mobile phones, 15W wireless charging, and WiFi functions. The MCU main control circuit coordinated the operation of each module, and a specific chip combination was used to achieve communication and data exchange between modules. The circuit structure was optimized to reduce interference and improve security.
It achieves multi-functional integration in a limited space, meets the diverse needs of users, provides stable high-speed network connection, Bluetooth audio function and fast charging service, and supports multiple audio format playback and device charging, which is practical and convenient.
Smart Images
Figure CN223428577U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electronic information, and particularly relates to a realization circuit of a four-in-one multimedia wireless WiFi device. Background Art
[0002] With the advancement of technology and the diversification of lifestyle needs, consumers have higher expectations for the functional integration and convenience of electronic products. Currently, the WiFi routers, Bluetooth speakers, and fast-charging devices on the market are all separate devices that only provide WiFi routing, Bluetooth speaker functions, or charging functions. Relatively few products integrate these functions into a single device, which brings inconvenience to users, especially in scenarios with limited space or those pursuing a simpler lifestyle. Utility Model Content
[0003] The following is a brief overview of embodiments of the present invention to provide a basic understanding of certain aspects of the invention. It should be understood that the following summary is not an exhaustive overview of the invention. It is not intended to identify key or important aspects of the invention, nor is it intended to limit the scope of the invention. Its purpose is simply to present certain concepts in a simplified form as a prelude to the more detailed description discussed later.
[0004] In order to solve the above technical problems, this application provides a four-in-one multimedia wireless WiFi device that integrates Bluetooth speakers, 120W wired fast charging for mobile phones, 15W wireless charging and WiFi functions to meet users' needs for multi-functional integration in limited space.
[0005] Specifically, the present application provides a four-in-one multimedia wireless WiFi device, including a housing and a control circuit board arranged inside the housing, wherein the control circuit board is provided with a power module, a WiFi module, a Bluetooth module, a wireless charging module, a wired charging module, an interface circuit and an MCU main control circuit, wherein the power module, the WiFi module, the Bluetooth module, the wireless charging module, the wired charging module and the interface circuit are all electrically connected to the MCU main control circuit; wherein the MCU main control circuit is implemented by a combination of an MT7976C communication chip and an MT7981 wireless chip; the power module is responsible for providing power to the control circuit board; the WiFi module is connected to the MCU main control circuit. The CU main control circuit realizes communication through the SPI interface and the UART interface; the wireless charging module is connected to the power module, including a wireless charging management circuit module, a wireless charging coil and a rectifier and voltage stabilization circuit, and receives the electric energy of the wireless charging management circuit module and the power module through the wireless charging coil, and converts it into power available to the device through the rectifier and voltage stabilization circuit; the wired charging module is connected to the power module, including a charging interface circuit and a power management circuit, and the charging interface circuit includes a USB charging interface and a USB discharge interface. The connected device is charged through the USB charging interface and the USB discharge interface, and supports charging through USB or other wired interfaces.
[0006] The MCU main control circuit serves as the control center of the entire system, communicating and exchanging data with each module through specific interfaces and protocols, and is responsible for coordinating the work of each module. As an implementation solution, the MCU main control circuit includes an interconnected MT7976C communication chip and an MT7981 wireless chip.
[0007] The power module is responsible for providing stable power to other modules on the entire circuit board, including step-down and voltage-stabilizing circuits, to ensure that different modules receive the required voltage and current. As an implementation solution, the power module is fixed to the control circuit board via a partition, and the power module and the MCU main control circuit are located on opposite sides of the control circuit board to reduce electromagnetic and thermal interference, enhance safety, and optimize the layout, facilitate signal transmission and routing, and facilitate subsequent upgrades and maintenance.
[0008] The WiFi module provides wireless network connectivity and supports common WiFi standards (such as 802.11n / ac / ax). The WiFi module generally includes an antenna and associated radio frequency circuitry. As an implementation, the WiFi module is implemented using an RTL8821 B WiFi wireless communication chip. This application utilizes an existing WiFi integration solution, which will not be detailed here.
[0009] The Bluetooth module is used to implement Bluetooth wireless communication and supports Bluetooth Low Energy (BLE) technology. As an implementation solution, the Bluetooth module is implemented using the AB5605E Bluetooth audio chip and its follower circuit. This application adopts an existing Bluetooth integration solution, which will not be detailed here.
[0010] As an implementation solution, the wireless charging module is implemented using a wireless charging control chip model IP6808_QFN32 and its follower circuit. The wireless charging module provides wireless charging function and supports wireless charging standards such as Qi.
[0011] As an implementation solution, the wired charging module is connected to the power module and includes a charging interface circuit and a power management circuit. The charging interface circuit includes a USB charging interface and a USB discharge interface. The connected device is charged through the USB charging interface and the USB discharge interface, and supports charging through USB or other wired interfaces. As an implementation solution, the wired charging module includes a 120W wired fast charging circuit.
[0012] As a further implementation scheme, the power management circuit includes a rectifier circuit, a PFC (Power Factor Correction) control circuit, a PWM control circuit, and a synchronous rectification control circuit, which are connected in sequence. The rectifier circuit is implemented using a TBM810 surface mount rectifier bridge chip and its follower circuit, the PFC control circuit is implemented using an LD7597A power factor correction controller and its follower circuit, the PWM control circuit includes a WT7162RH power adapter and its follower circuit, and the synchronous rectification control circuit is implemented using a WT7131A synchronous rectification controller and its follower circuit. The TBM810, as a surface mount rectifier bridge, performs a rectification function in the fast charging circuit; the LD7597A, as a PFC controller, helps improve the circuit's power factor and reduce harmonic distortion; and the WT7162RH and WT7131A, respectively, act as a PWM controller and synchronous rectification controller to control and regulate the circuit.
[0013] As an implementation solution, the interface circuit includes an SPI interface, a UART interface, a USB interface, an HDMI interface, and an audio interface, which is responsible for signal conversion and level matching to ensure compatibility and communication quality between different devices.
[0014] As an implementation solution, the housing has a base so that it can be placed on a desktop.
[0015] Through the above solution, this application realizes an integrated solution of 2.4G Bluetooth power amplifier (Bluetooth module), AX3000WiFi solution (WiFi module), wired fast charging 120W full protocol QC4.0 and PD4.0 (wired charging module), and 15W wireless charging solution (wireless charging module), which supports Bluetooth connection within 10 meters and supports power amplifier function. AX3000WiFi supports 2.5G signal and 5G signal channel transmission, which is faster and more convenient. Wired fast charging 120W full protocol supports fast charging of mobile phones such as Huawei, OPPO, VIVO, and Xiaomi. Wireless charging provides a maximum charging power of 15W.
[0016] Compared to the existing technology, this application provides a four-in-one multimedia wireless WiFi device that integrates WiFi routing, Bluetooth audio, 120W fast wired mobile phone charging, and 15W wireless charging. This device meets the user's need for multi-functional integration within a limited space. For example, a user can use their phone to watch a movie while connected to Bluetooth audio, charging, and connecting to WiFi. It can also be used as a mobile phone holder, demonstrating its excellent practicality. Furthermore, by optimizing the circuit structure of each module, the overall performance is optimized while minimizing the size of the overall control circuit board. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention can be better understood by referring to the following description in conjunction with the accompanying drawings, wherein the same or similar reference numerals are used throughout the drawings to represent the same or similar components. The accompanying drawings, together with the following detailed description, are incorporated into and form a part of this specification and are used to further illustrate the preferred embodiments of the present invention and to explain the principles and advantages of the present invention. In the drawings:
[0018] Figure 1 This is a functional block diagram of a four-in-one multimedia wireless WiFi device according to an embodiment of the present invention;
[0019] Figure 2 This is a schematic diagram of the MCU main control circuit of the four-in-one multimedia wireless WiFi device according to an embodiment of the present invention;
[0020] Figure 3 This is a circuit diagram of a four-in-one multimedia wireless WiFi device according to an embodiment of the present invention;
[0021] Figure 4 This is a schematic diagram of the WiFi module of the four-in-one multimedia wireless WiFi device according to an embodiment of the present invention;
[0022] Figure 5 This is a schematic diagram of the Bluetooth module of the four-in-one multimedia wireless WiFi device according to an embodiment of the present invention;
[0023] Figure 6 This is a schematic diagram of the wireless charging module of the four-in-one multimedia wireless WiFi device according to an embodiment of the present invention;
[0024] Figure 7 This is a schematic diagram of the wired charging module of the four-in-one multimedia wireless WiFi device according to an embodiment of the present invention. DETAILED DESCRIPTION
[0025] The following describes embodiments of the present invention with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that for the sake of clarity, the drawings and descriptions omit the representation and description of components and processes that are not relevant to the present invention and are known to those of ordinary skill in the art.
[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0027] With the development of science and technology and the diversification of life needs, consumers have higher requirements for the functional integration and convenience of electronic products. Although there are separate WiFi routers, Bluetooth speakers and fast charging devices on the market, there are relatively few products that integrate these functions into one device, which brings inconvenience to users, especially in scenarios with limited space or the pursuit of a simple lifestyle. To meet this demand, the present application provides a four-in-one multimedia wireless WiFi device with wireless WiFi + 120W fast charging + Bluetooth speakers + wireless charging.
[0028] As a specific embodiment, the four-in-one multimedia wireless WiFi device of the present invention includes a housing and a control circuit board disposed inside the housing. Figure 1 The control circuit board is equipped with a power module, WiFi module, Bluetooth module, wireless charging module, wired charging module, interface circuit and MCU main control circuit. The power module, WiFi module, Bluetooth module, wireless charging module, wired charging module and interface circuit are all electrically connected to the MCU main control circuit.
[0029] See also Figure 2 and Figure 3The MCU main control circuit is implemented using a combination of the MT7976C communication chip and the MT7981 wireless chip. As the control center of the entire system, the MCU main control circuit communicates and exchanges data with each module through specific interfaces and protocols, and is responsible for coordinating the work of each module.
[0030] The power module is responsible for providing stable power to other modules on the entire circuit board. This includes step-down and voltage-stabilizing circuits, ensuring that each module receives the required voltage and current. In this embodiment, the power module is secured to the control circuit board via a partition. The power module and the MCU main control circuit are located on opposite sides of the control circuit board to reduce electromagnetic and thermal interference, enhance safety, and optimize the layout, facilitating signal transmission and routing, and facilitating subsequent upgrades and maintenance.
[0031] The WiFi module communicates with the MCU main control circuit through the SPI interface and UART interface. The WiFi module provides wireless network connection function and supports common WiFi standards (such as 802.11n / ac / ax, etc.). The WiFi module generally includes an antenna and related RF circuits. Figure 4 In this embodiment, the WiFi module is implemented using a WiFi wireless communication chip model RTL8821 B.
[0032] The Bluetooth module is used to implement Bluetooth wireless communication and supports Bluetooth Low Energy (BLE) technology. Figure 5 In this embodiment, the Bluetooth module is implemented using an AB5605E Bluetooth audio chip and its follower circuit.
[0033] The wireless charging module is connected to the power module and includes a wireless charging management circuit module, a wireless charging coil, and a rectifier and voltage regulator circuit. The wireless charging coil receives power from the wireless charging management circuit module and the power module, and converts it into power that can be used by the device through the rectifier and voltage regulator circuit. Figure 6 In this embodiment, the wireless charging module is implemented using a wireless charging control chip model IP6808_QFN32 and its follower circuit. The wireless charging module provides wireless charging functionality and supports wireless charging standards such as Qi.
[0034] The wired charging module is connected to the power module, including a charging interface circuit and a power management circuit. The charging interface circuit includes a USB charging interface and a USB discharge interface. The connected device is charged through the USB charging interface and the USB discharge interface, and supports charging through USB or other wired interfaces.
[0035] The wired charging module of this embodiment is a 120W wired fast charging circuit. Figure 7The power management circuit comprises a rectifier circuit, a PFC (Power Factor Correction) control circuit, a PWM control circuit and a synchronous rectification control circuit connected in sequence, the rectifier circuit is realized by using a patch rectifier bridge chip of model TBM810 and a following circuit thereof, the PFC control circuit is realized by using a power factor correction controller of model LD7597A and a following circuit thereof, the PWM control circuit comprises a power adapter of model WT7162RH and a following circuit thereof, and the synchronous rectification control circuit is realized by using a synchronous rectification controller of model WT7131A and a following circuit thereof. The TBM810 serves as a patch rectifier bridge and plays a role of rectification in the fast charging circuit; the LD7597A serves as a PFC controller and helps to improve the power factor of the circuit and reduce harmonic distortion; and the WT7162RH and the WT7131A serve as a PWM controller and a synchronous rectification controller respectively and control and adjust the circuit.
[0036] The interface circuit comprises an SPI interface, a UART interface, a USB interface, an HDMI interface and an audio interface, is responsible for signal conversion and level matching, and ensures the compatibility and communication quality between different devices.
[0037] In addition, the shell has a base, so that it can be placed on a desktop. The shell can also be designed as a phone stand structure.
[0038] The WiFi device integrated with the high-performance WiFi router, the Bluetooth audio playback and the fast charging function (wireless and wired) can not only provide stable and high-speed network connection, but also be used as a Bluetooth sound box, support the playback of multiple audio formats, and provide fast charging service for mobile phones, tablets and other devices through the USB port or the wireless charging plate. Meanwhile, the modular design is adopted, so that the individualized needs of different user groups can be met, and different functional modules (such as a WiFi module, a Bluetooth sound box module and a fast charging module) can be selected and combined according to the scene or the requirement.
[0039] Through the design of the specific circuit, the Bluetooth connection within 10 meters is supported, and the power amplifier function is also supported. The AX3000 WiFi supports 2.5G signal and 5G signal channel transmission, which is faster and more convenient. The wired fast charging of 120W supports the fast charging of mobile phones of Huawei, OPPO, VIVO, Xiaomi and the like. The wireless charging provides a maximum charging power of 15W. The user can watch a movie on a mobile phone while connecting a Bluetooth sound box, charging and connecting WiFi, and the WiFi device can also be used as a mobile phone stand.
[0040] It should be emphasized that the term "comprises / comprising" is used herein to mean that a feature, element, step or component is present, but does not preclude the presence or addition of one or more other features, elements, steps or components.
[0041] Although the present invention has been disclosed above through the description of specific embodiments of the present invention, it should be understood that all the above embodiments and examples are illustrative rather than restrictive. Those skilled in the art may design various modifications, improvements, or equivalents of the present invention within the spirit and scope of the appended claims. Such modifications, improvements, or equivalents should also be considered to be included within the scope of protection of the present invention.
Claims
1. A four-in-one multimedia wireless WiFi device, characterized by: The device comprises a housing and a control circuit board disposed inside the housing, wherein the control circuit board is provided with a power module, a WiFi module, a Bluetooth module, a wireless charging module, a wired charging module, an interface circuit, and an MCU main control circuit, wherein the power module, the WiFi module, the Bluetooth module, the wireless charging module, the wired charging module, and the interface circuit are all electrically connected to the MCU main control circuit; Among them, the MCU main control circuit is implemented by combining the MT7976C communication chip and the MT7981 wireless chip; the power module provides power for the control circuit board; the WiFi module communicates with the MCU main control circuit through the SPI interface and the UART interface; the wireless charging module and the wired charging module are both connected to the power module.
2. The four-in-one multimedia wireless WiFi device according to claim 1, characterized in that: The MCU main control circuit includes an MT7976C communication chip and an MT7981 wireless chip connected to each other.
3. The four-in-one multimedia wireless WiFi device according to claim 1, wherein: The power module is fixed on the control circuit board through a partition, and the power module and the MCU main control circuit are respectively arranged on both sides of the control circuit board.
4. The four-in-one multimedia wireless WiFi device according to claim 1, wherein: The WiFi module is implemented using a WiFi wireless communication chip model RTL8821 B.
5. The four-in-one multimedia wireless WiFi device according to claim 1, wherein: The Bluetooth module is implemented using an AB5605E Bluetooth audio chip and its follower circuit.
6. The four-in-one multimedia wireless WiFi device according to claim 1, wherein: The wireless charging module is implemented using a wireless charging control chip model IP6808_QFN32 and its follower circuit.
7. The four-in-one multimedia wireless WiFi device according to claim 1, wherein: The wired charging module includes a charging interface circuit and a power management circuit. The charging interface circuit includes a USB charging interface and a USB discharge interface. The connected device is charged through the USB charging interface and the USB discharge interface, and supports charging through USB or other wired interfaces.
8. The four-in-one multimedia wireless WiFi device according to claim 7, characterized in that: The wired charging module includes a 120W wired fast charging circuit; the power management circuit includes a rectifier circuit, a PFC control circuit, a PWM control circuit and a synchronous rectification control circuit connected in sequence.
9. The four-in-one multimedia wireless WiFi device according to claim 8, characterized in that: The rectifier circuit is implemented using a TBM810 patch rectifier bridge chip and its follower circuit, the PFC control circuit is implemented using a LD7597A power factor correction controller and its follower circuit, the PWM control circuit includes a WT7162RH power adapter and its follower circuit, and the synchronous rectification control circuit is implemented using a WT7131A synchronous rectification controller and its follower circuit.
10. The four-in-one multimedia wireless WiFi device according to claim 1, wherein: The interface circuit includes an SPI interface, a UART interface, a USB interface, an HDMI interface and an audio interface.