POE-to-Type-C docking station with wireless charging function

Abstract

The utility model discloses a POE-to-Type-C docking station with a wireless charging function, and the docking station comprises an RJ45 interface which is connected with front-end PSE equipment through a network cable, and is used for receiving data and electric power of the PSE equipment at the same time, and achieving the network connection and power supply; the power supply management unit is used for adjusting and distributing a power supply received by the RJ45 interface, one part of the power supply is used for wireless power supply, and the other part of the power supply is used for Type-C interface power supply; and the data transmission unit is used for processing and transmitting the network data of the RJ45 interface and transmitting the network data to connected equipment through the Type-C interface. According to the invention, the received power and data are shunted, efficient energy utilization and data transmission are ensured, a user can realize network data transmission and intelligent power supply only through one network cable, an additional power adapter or charging line is not needed, and a comprehensive, efficient and safe solution is provided for the user.

Description

Technical Field

[0001] The utility model relates to the technical field of docking stations, in particular to a POE to Type-C docking station with a wireless charging function. Background Art

[0002] With the rapid development of technology, electronic devices play an increasingly important role in people's daily life and work. Especially mobile devices such as laptops, tablets, and smartphones, which not only require stable and high-speed network connections but also often demand convenient power supply and flexible data expansion capabilities.

[0003] In the existing technology, although there are already some solutions for power supply and network connection of mobile devices. For example, PoE (Power over Ethernet) technology can provide power and network signals for devices through network cables at the same time. However, such solutions are usually only applicable to fixed or specific types of devices and are difficult to meet the requirements of wireless charging, high-speed data transmission, and multi-interface expansion at the same time. Although some docking stations on the market currently support the PD (Power Delivery) protocol and theoretically can provide charging functions for connected computers, in actual applications, these docking stations often still need to be additionally connected to a charger to effectively supply power to the computer, which undoubtedly increases the complexity and inconvenience of use. Secondly, for the demand of charging mobile devices such as mobile phones through a computer, existing docking stations often have problems such as slow charging speed and the need for additional wire connections. This not only limits the convenience of charging but may also affect the user experience due to the mess of wires.

[0004] In addition, with the popularization of Type-C interfaces, users have higher requirements for the unity and versatility of interfaces. However, existing docking stations on the market still have certain limitations in interface expansion and power transmission and are difficult to meet the user's requirements for efficient, convenient, and integrated use.

[0005] In view of the above situation, the utility model aims to provide a new solution to solve this problem. Summary of the Utility Model

[0006] In view of the above situation, to overcome the defects of the existing technology, the purpose of the utility model is to provide a POE to Type-C docking station with a wireless charging function.

[0007] The technical solution it adopts is: A POE to Type-C docking station with a wireless charging function, comprising:

[0008] An RJ45 interface, connected to a front-end PSE device through a network cable, for simultaneously receiving data and power from the PSE device to achieve network connection and power supply;

[0009] A power supply management unit, configured to adjust and distribute the power received by the RJ45 interface, with a part for wireless power supply and another part for Type-C interface power supply; and

[0010] A data transmission unit, configured to process and transmit the network data of the RJ45 interface, and transmit the network data to the connected device through the Type-C interface.

[0011] Preferably, the power supply management unit includes:

[0012] A power module, configured to convert the power received from the RJ45 interface into direct current and perform step-down processing to meet the working voltage requirements of subsequent modules;

[0013] A wireless charging module, electrically connected to the power module, configured to provide wireless charging for external devices;

[0014] A PD charging management module, electrically connected to the power module, configured to achieve intelligent power distribution and fast charging through the Type-C interface.

[0015] Preferably, the power module includes:

[0016] A rectifier circuit, including a network transformer and a rectifier, with the input end of the network transformer connected to the RJ45 interface and the output end of the network transformer connected to the input end of the rectifier;

[0017] A step-down circuit, including a power management chip and a first step-down chip, with the input end of the power management chip connected to the output end of the rectifier, the output end of the power management chip connected to the input end of the first step-down chip, and the output end of the first step-down chip connected to the power supply ends of the wireless charging module and the PD charging management module.

[0018] Preferably, a common mode inductor is further provided between the power management chip and the first step-down chip.

[0019] Preferably, the wireless charging module uses a wireless charging transmitter chip of CWT1541 / CWT2043.

[0020] Preferably, the PD charging management module includes an electronic switch, a PD fast charging management chip, and a second step-down chip. The input end of the electronic switch is connected to the power supply output end of the power supply module through a first resistor and grounded through a first capacitor. The output end of the electronic switch is connected to the input end of the second step-down chip and grounded through a second capacitor. The control end of the electronic switch is connected to the PD fast charging management chip. The second step-down chip is used to convert the output voltage of the power supply module into a stable +5V power supply output.

[0021] Preferably, the electronic switch is composed of two MOS tubes arranged in parallel.

[0022] Preferably, the data transmission unit includes:

[0023] An Ethernet-to-USB module for converting the Ethernet network data received through an RJ45 interface into a data format recognizable by a USB interface;

[0024] A USB HUB module for data transmission with the Ethernet-to-USB module, and is used to expand and manage the connection and data transmission of multiple USB interfaces through a Type-C interface.

[0025] Preferably, the Ethernet-to-USB module selects an RTL8153_QFN48 chip.

[0026] Preferably, the USB HUB module selects a GL3510 chip. The GL3510 chip is connected to the Type-C interface and expanded into multiple USB interfaces.

[0027] Through the above technical solutions, the beneficial effects of the present utility model are as follows: In this application, the received power and data are shunted and processed, ensuring efficient energy utilization and data transmission. Users can realize network data transmission and intelligent power supply only through one network cable, without the need for additional power adapters or charging cables. Both power management and charging management adopt high-efficiency chips and circuit designs. Through multi-stage step-down and intelligent control, the efficiency of the power conversion and charging processes is ensured. And during the data transmission process, through the Ethernet-to-USB module and the USB HUB module, efficient data conversion and expansion from the network to the USB interface are realized, supporting the connection and data transmission of multiple USB devices, meeting the requirements of modern office and entertainment for high-speed data transmission, and providing users with a comprehensive, efficient, and secure solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a system module structure block diagram of the present utility model.

[0029] Figure 2 It is a system module structure block diagram in an embodiment of the present utility model.

[0030] Figure 3 This is the schematic diagram of the rectifier circuit in the embodiment of the present utility model.

[0031] Figure 4 This is the schematic diagram of the buck circuit in the embodiment of the present utility model.

[0032] Figure 5 This is the schematic diagram of the circuit of the wireless charging module in the embodiment of the present utility model.

[0033] Figure 6 This is the schematic diagram of the external wiring of the PD fast charging management chip in the embodiment of the present utility model.

[0034] Figure 7 This is the schematic diagram of the circuit of the electronic switch in the embodiment of the present utility model.

[0035] Figure 8 This is the schematic diagram of the circuit of the second buck chip in the embodiment of the present utility model.

[0036] Figure 9 This is the schematic diagram of the circuit of the Ethernet to USB module in the embodiment of the present utility model.

[0037] Figure 10 This is the schematic diagram of the circuit of the USB HUB module in the embodiment of the present utility model. Detailed implementation manners

[0038] Regarding the foregoing and other technical contents, features and effects of the present utility model, they will be clearly presented in the following detailed description of the embodiments in conjunction with Figure 1 to Figure 10 The structural contents mentioned in the following embodiments are all with reference to the accompanying drawings of the specification.

[0039] The following will describe various exemplary embodiments of the present utility model with reference to the drawings.

[0040] As Figure 1 shown, a POE to Type-C docking station with wireless charging function includes:

[0041] An RJ45 interface, connected to the front-end PSE device through a network cable, for simultaneously receiving data and power from the PSE device to achieve network connection and power supply;

[0042] A power supply management unit, for adjusting and distributing the power received by the RJ45 interface, part of which is used for wireless power supply and the other part is used for power supply of the Type-C interface; and

[0043] A data transmission unit, for processing and transmitting the network data of the RJ45 interface, and transmitting the network data to the connected device through the Type-C interface.

[0044] In the above, as Figure 2 shown, the power supply management unit includes:

[0045] A power module, which is used to convert the power received from the RJ45 interface into direct current and perform step-down processing to meet the working voltage requirements of subsequent modules;

[0046] A wireless charging module, electrically connected to the power module, which is used to provide wireless charging for external devices;

[0047] A PD charging management module, electrically connected to the power module, which is used to realize intelligent power distribution and fast charging through the Type-C interface.

[0048] Among them, the power module includes:

[0049] A rectifier circuit, including a network transformer and a rectifier. The input end of the network transformer is connected to the RJ45 interface, and the output end of the network transformer is connected to the input end of the rectifier;

[0050] A step-down circuit, including a power management chip and a first step-down chip. The input end of the power management chip is connected to the output end of the rectifier, the output end of the power management chip is connected to the input end of the first step-down chip, and the output end of the first step-down chip is connected to the power supply terminals of the wireless charging module and the PD charging management module.

[0051] In the specific implementation process, as Figure 3 and Figure 4 shown, when POE power supply is connected to the RJ45 interface through a network cable, the current first enters the network transformer. Specifically, the TF5040 chip can be selected, whose main functions are signal isolation and impedance matching. At the same time, it also has a certain filtering function to ensure the stability and safety of the input current. Then the current is sent to the rectifier for full-wave rectification to become direct current. The direct current processed by the rectifier circuit enters the step-down circuit. Among them, the MP8020 chip is selected as the power management chip, which has multiple protection functions (such as overvoltage protection, overcurrent protection, etc.) and can ensure the stability and safety during the power conversion process. The LM5088 step-down controller is selected as the first step-down chip, which can accurately adjust the input voltage according to the set output voltage value, so as to provide power for the wireless charging module and the PD charging management module. A common-mode inductor LA1 is also arranged between the power management chip and the first step-down chip to suppress common-mode interference and ensure the stability and reliability of the power supply.

[0052] In the above, the wireless charging module adopts the wireless charging transmitter chips of CWT1541 / CWT2043, as Figure 5As shown, these two chips are designed specifically for wireless charging applications, featuring high integration, high efficiency, and broad compatibility. The maximum output power can reach 15W, and they support 5W BPP and 15W EPP protocols. The CWT1541 / CWT2043 chips can support the Qi standard and other mainstream wireless charging protocols, ensuring compatibility with most wireless charging devices on the market. In the docking station, the CWT1541 / CWT2043 chips are electrically connected to the power module, receiving direct current after rectification and buck conversion, and converting the electrical energy into high-frequency alternating current suitable for wireless charging through the internal power conversion circuit, and then transmitting it to external devices through the wireless charging coil. At the same time, the CWT1541 / CWT2043 chips can intelligently identify the charging requirements of the receiving device, dynamically adjust the output power, and achieve a fast and safe charging process.

[0053] On the other hand, the PD charging management module specifically includes an electronic switch, a PD fast charging management chip, and a second buck chip. The input end of the electronic switch is connected to the power output end of the power module through a first resistor and grounded through a first capacitor. The output end of the electronic switch is connected to the input end of the second buck chip and grounded through a second capacitor. The control end of the electronic switch is connected to the PD fast charging management chip. The second buck chip is used to convert the output voltage of the power module into a stable +5V power output.

[0054] As Figures 6 - 8 shown, among them, the PD fast charging management chip selects the IP2712 chip, which is used to monitor status information such as current and voltage during the charging process to ensure the safety and efficiency of the charging process. The electronic switch consists of two MOS tubes connected in parallel. This design aims to reduce the internal resistance, improve the fault tolerance ability, and ensure the stability and reliability during high-power transmission. During the PD fast charging process, the PD fast charging management chip controls the on and off of the circuit by controlling its gate voltage. When the IP2712 sends a control signal to the control end of the electronic switch, the MOS tubes will quickly switch states according to the signal, thereby controlling the direction and magnitude of the current flow. The second buck chip selects the XL2009 chip, which is used to directly connect the bucked +5V stable power output to the Type-C interface to provide power for the connected device. In the specific working process, since the IP2712 chip integrates multiple protocols such as the USB TYPE-C output protocol, the USB Power Delivery (PD3.0) output protocol, and the QC3.0 / 2.0 output fast charging protocol, when it recognizes the load to be charged, the chip can automatically adjust to the appropriate charging mode and optimize the output power to match the load requirements, not only ensuring the charging efficiency but also reducing the device heat generation by optimizing the power distribution, achieving intelligent and safe charging management.

[0055] In the above, the data transmission unit includes:

[0056] An Ethernet to USB module, which is used to convert the Ethernet network data received by the RJ45 interface into a data format recognizable by the USB interface;

[0057] A USB HUB module, which conducts data transmission with the Ethernet to USB module and is used to expand and manage the connection and data transmission of multiple USB interfaces through the Type-C interface.

[0058] During specific settings, as Figure 9 shown, the RTL8153_QFN48 chip is selected for the Ethernet to USB module. This chip is a highly integrated network conversion chip launched by Realtek. It supports converting the Ethernet network data from the RJ45 interface into a data format recognizable by the USB interface, thereby realizing communication between network data and USB devices.

[0059] As Figure 10 shown, the GL3510 chip is selected for the USB HUB module. This chip is from Genesys Logic. It is a low-power HUB controller that supports USB 3.0 and is backward compatible with USB 2.0. It can be connected to the Type-C interface and expanded into multiple USB interfaces, facilitating users to connect multiple USB devices simultaneously.

[0060] During the specific working process of the data transmission unit, when the Ethernet data packets arrive at the RJ45 interface through the network cable, the RTL8153_QFN48 chip first receives and parses these data packets. The parsed data packets are sent to the USB controller inside the chip for processing, converted into the format required by the USB protocol, and prepared to be transmitted through the USB interface. The GL3510 chip, as the USB HUB controller, is connected to the RTL8153_QFN48 chip through the USB interface and is responsible for distributing the USB data packets from the RTL8153_QFN48 chip to the multiple expanded USB interfaces.

[0061] The POE to Type-C docking station with wireless charging function proposed by the present utility model integrates functions such as network connection, power transmission, wireless charging, PD fast charging, and data transmission in one device, improving the practicality and portability of the device. During specific operation, it is connected to the front-end PSE device through its RJ45 interface, realizing the simultaneous reception of data and power. The installation is simple and fast, and it can be used without complex configuration. In terms of the design concept, the present utility model cleverly shunts the received power and data, ensuring efficient energy utilization and data transmission. Users only need an Ethernet cable to achieve network data transmission and intelligent power supply, without the need for an additional power adapter or charging cable. Both power management and charging management adopt high-efficiency chips and circuit designs. Through multi-stage bucking and intelligent control, the efficiency of the power conversion and charging process is ensured. And during the data transmission process, through the Ethernet to USB module and the USB HUB module, efficient data conversion and expansion from the network to the USB interface are realized, supporting the connection and data transmission of multiple USB devices, meeting the requirements for high-speed data transmission in modern office and entertainment.

[0062] In summary, the POE to Type-C docking station with wireless charging function of the present utility model performs excellently in terms of integration, wireless charging efficiency, PD fast charging intelligence, power management stability, data transmission efficiency, and installation and maintenance convenience, providing users with a comprehensive, efficient, and safe solution.

[0063] The above is a further detailed description of the present utility model in combination with specific embodiments, and it cannot be determined that the specific implementation of the present utility model is only limited to this; for those skilled in the art of the present utility model and related technical fields, based on the premise of the technical solution idea of the present utility model, the expansions made, as well as the operation methods and data replacements, should fall within the protection scope of the present utility model.

Claims

1. POE to Type-C docking station with wireless charging function, characterized by: include: RJ45 interface, connected to the front-end PSE device through a network cable, used to simultaneously receive data and power from the PSE device to achieve network connection and power supply; A power management unit, used to adjust and distribute the power received by the RJ45 interface, with one part used for wireless power supply and the other part used for Type-C interface power supply; as well as The data transmission unit is used to process and transmit the network data of the RJ45 interface, and transmit the network data to the connected device through the Type-C interface.

2. The POE to Type-C docking station with wireless charging function according to claim 1, characterized in that: The power supply management unit comprises: A power module, used to convert the power received from the RJ45 interface into direct current and perform voltage reduction processing to meet the working voltage requirements of subsequent modules; A wireless charging module, electrically connected to the power module, for providing wireless charging for external devices; The PD charging management module is electrically connected to the power module and is used to realize intelligent distribution and fast charging of power through the Type-C interface.

3. The POE to Type-C docking station with wireless charging function according to claim 2, characterized in that: The power module comprises: A rectifier circuit, comprising a network transformer and a rectifier, wherein the input end of the network transformer is connected to the RJ45 interface, and the output end of the network transformer is connected to the input end of the rectifier; The step-down circuit includes a power management chip and a first step-down chip, wherein the input end of the power management chip is connected to the output end of the rectifier, the output end of the power management chip is connected to the input end of the first step-down chip, and the output end of the first step-down chip is connected to the power supply end of the wireless charging module and the PD charging management module.

4. The POE to Type-C docking station with wireless charging function according to claim 3, characterized in that: A common mode inductor is also arranged between the power management chip and the first buck chip.

5. The POE to Type-C docking station with wireless charging function according to claim 4, characterized in that: The wireless charging module adopts the CWT1541 / CWT2043 wireless charging transmitter chip.

6. The POE to Type-C docking station with wireless charging function according to claim 4, characterized in that: The PD charging management module includes an electronic switch, a PD fast charging management chip and a second step-down chip. The input end of the electronic switch is connected to the power supply output end of the power module through a first resistor and is grounded through a first capacitor. The output end of the electronic switch is connected to the input end of the second step-down chip and is grounded through a second capacitor. The control end of the electronic switch is connected to the PD fast charging management chip. The second step-down chip is used to convert the output voltage of the power module into a stable +5V power output.

7. The POE to Type-C docking station with wireless charging function according to claim 6, characterized in that: The electronic switch is composed of two MOS tubes connected in parallel.

8. The POE to Type-C docking station with wireless charging function according to claim 1, characterized in that: The data transmission unit comprises: Ethernet to USB module, used to convert Ethernet network data received by the RJ45 interface into a data format recognizable by the USB interface; The USB HUB module performs data transmission with the Ethernet to USB module and is used to expand and manage the connection and data transmission of multiple USB interfaces through the Type-C interface.

9. The POE to Type-C docking station with wireless charging function according to claim 8, characterized in that: The Ethernet to USB module uses the RTL8153_QFN48 chip.

10. The POE to Type-C docking station with wireless charging function according to claim 9, characterized in that: The USB HUB module uses a GL3510 chip, which is connected to the Type-C interface and expanded into multiple USB interfaces.

Images