Three-in-one intelligent converter for routing, switching and charging
By integrating charging and routing switching modules and combining them with high-performance chips, the problems of charging interface compatibility and complex network connections in IoT devices are solved, enabling efficient and secure multi-device collaborative work and adapting to harsh environmental requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BOZHEN TECH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-15
AI Technical Summary
In IoT devices, charging interface compatibility is insufficient, network connection configuration is complex, and data transmission efficiency is low. Especially in industrial scenarios, it is difficult to meet the harsh environmental requirements. Traditional discrete solutions result in cumbersome hardware stacking, messy cables, and high compatibility risks.
The system adopts an integrated design of charging module, routing and switching module, control module and power input module, combined with MAX77958, RTL8153B-VC-CG and MT7621AT chips to achieve precise voltage and current control of Type-C port, network speed adaptation, multi-tasking processing and network security protection.
It improves charging efficiency, compatibility, and safety, ensures the stability of 1000M high-speed data transmission, provides intuitive network status feedback, optimizes system resource allocation, reduces the difficulty of troubleshooting and maintenance costs, and builds a multi-layered network security protection system to adapt to various network architectures and application needs.
Smart Images

Figure CN224249717U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of Internet of Things (IoT) technology, specifically to a three-in-one smart converter for routing, switching, and charging. Background Technology
[0002] With the rapid development of the Internet of Things (IoT) and smart devices, multi-device collaborative work scenarios are becoming increasingly common, such as smart home central control, industrial monitoring terminals, and commercial display equipment. In these scenarios, devices typically face problems such as insufficient charging interface compatibility, complex network connection configurations, and low data transmission efficiency. Traditional technical approaches employ a discrete combination model, configuring charging, network, and data modules independently. This approach not only results in cumbersome hardware stacking and messy cabling but also introduces compatibility risks due to differences in communication protocols among modules. Especially in industrial scenarios, production line equipment has high requirements for protection levels and wide-temperature operation, while traditional discrete solutions, due to their complex design, struggle to meet the demands of harsh environments, becoming a technical bottleneck restricting the integrated development of smart devices. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a three-in-one intelligent converter for routing, switching, and charging, which solves the problems mentioned in the background art.
[0004] The solution to the above-mentioned technical problems provided by this utility model is as follows:
[0005] A 3-in-1 smart converter for routing, switching, and charging, including:
[0006] The charging module includes four Type-C ports, each equipped with an independent charging chip, compatible with USB Type-C version 1.3 and PD 3.0 protocols;
[0007] The routing and switching module includes one RJ-45 network interface and four Type-C ports, each of which is equipped with an independent network chip.
[0008] The control module is used to switch between gateway and bridging modes and to automatically upload data.
[0009] A power input module, wherein the input of the power input module is DC19V / 3.42A;
[0010] The indicator module includes a PWR indicator, a LINK / ACT indicator, and a charging adapter indicator.
[0011] Based on the above technical solution, the present invention can be further improved as follows.
[0012] Furthermore, the charging chip uses the MAX77958 chip, and the output of each Type-C port is 5V / 3A.
[0013] The beneficial effects of adopting the above-mentioned further solutions are:
[0014] As an independent charging management chip, the MAX77958 chip can achieve precise voltage and current control for each Type-C port. Through CC detection and PD protocol handshake mechanism, it can quickly identify the charging protocol standard supported by the connected device. While ensuring a stable 5V / 3A output, the built-in overvoltage protection circuit can limit the output voltage within a safe threshold. The overcurrent protection module can monitor current changes in real time and cut off the circuit in case of abnormality. The humidity detection function can prevent circuit failure caused by excessive ambient humidity, thereby significantly improving charging efficiency, compatibility and safety, and effectively protecting the connected device and the converter itself from electrical damage.
[0015] Furthermore, the network chip uses the RTL8153B-VC-CG chip, which supports adaptive speeds of 10M / 100M / 1G, and the RJ-45 network interface supports a speed of 1000M, indicated by a green indicator light.
[0016] The beneficial effects of adopting the above-mentioned further solutions are:
[0017] The RTL8153B-VC-CG chip's high-speed adaptive capability allows each Type-C port and RJ-45 interface to automatically match the optimal transmission rate based on the network capabilities of the connected device. Support for the IEEE 802.3ab standard ensures the stability of 1000M high-speed data transmission. A green indicator light is connected to the network chip's status pin via an optocoupler; it illuminates when a 1000M connection rate is detected, providing users with intuitive network status feedback. This design not only meets the network speed requirements of different devices but also enhances user perception of network connection quality through visual identification, reducing the difficulty of troubleshooting.
[0018] Furthermore, the control module uses the MT7621AT chip as the main control chip and is equipped with 8MB SPI Flash and 128MB DDR3 memory.
[0019] The beneficial effects of adopting the above-mentioned further solutions are:
[0020] The MT7621AT chip's dual-core architecture provides powerful multitasking capabilities, enabling simultaneous management of complex functions such as charging control, network routing, and data uploading. 8MB of SPI Flash stores complete firmware programs and configuration parameters, supporting online upgrades and power-off data protection. 128MB of DDR3 memory provides ample operating space for real-time tasks such as DHCP service, firewall rule execution, and system monitoring, ensuring stable performance even when multiple devices are connected simultaneously. This hardware configuration optimizes system resource allocation, improves overall response speed and reliability, and extends device lifespan and functional scalability.
[0021] Furthermore, the converter also includes a Reset button for resetting the device.
[0022] The beneficial effects of adopting the above-mentioned further solutions are:
[0023] The Reset button is connected to the main control chip via an independent reset circuit. When the button is pressed, the generated low-level signal triggers the chip's internal reset logic, restoring the system to its initial configuration. This hardware-level reset mechanism bypasses potentially faulty software processes, quickly resolving functional abnormalities caused by system crashes, configuration errors, or other issues. It provides a direct and effective recovery method when users cannot operate through the software interface, significantly improving device maintainability and user experience, and reducing repair costs due to temporary malfunctions.
[0024] Furthermore, the control module also includes firewall functionality, which includes MAC / IP port filtering, remote management, port forwarding, and DMZ settings.
[0025] The beneficial effects of adopting the above-mentioned further solutions are:
[0026] MAC / IP port filtering prevents network intrusion by blocking unauthorized device connections through access control lists. Remote management allows administrators to adjust configurations via secure channels, improving operational efficiency. Port forwarding directs external access requests to specific internal devices, exposing services. DMZ settings create an isolation zone between the public and internal networks, protecting core equipment. These features combine to form a multi-layered network security protection system, effectively resisting threats such as ARP spoofing, port scanning, and DDoS attacks, ensuring data transmission security and stable device operation, especially suitable for applications with high network security requirements.
[0027] Furthermore, the control module also includes system configuration functions, which include device information settings, IP address settings, user management, NTP settings, and DDNS settings.
[0028] The beneficial effects of adopting the above-mentioned further solutions are:
[0029] Device information settings allow for customized device identifiers, facilitating centralized management. IP address settings support static / dynamic configuration to adapt to different network environments. User management functions ensure system operation security through hierarchical permission control. NTP settings synchronize the system clock with standard time, ensuring the time accuracy of log recording and data transmission. DDNS settings maintain device accessibility in dynamic IP environments, facilitating remote monitoring and management. These configuration options build a complete device management system, enabling the converter to flexibly adapt to various network architectures and application requirements, improving device versatility and manageability, and reducing deployment and maintenance complexity.
[0030] This utility model provides a three-in-one intelligent converter for routing, switching, and charging. It has the following beneficial effects:
[0031] All four Type-C ports support fast charging and are compatible with USB Type-C version 1.3 and PD 3.0 protocols, adapting to the charging needs of different brands of devices. Each port is equipped with an independent charging chip, which automatically identifies the device's charging protocol through USB Type-C CC detection and PD protocol to achieve 5V / 3A output; it also integrates overvoltage and overcurrent protection mechanisms and humidity detection functions to prevent device damage.
[0032] It integrates routing and switching functions, supports automatic IP address allocation via DHCP, and can switch between gateway / bridge modes to adapt to different network scenarios. The RJ-45 network interface and Type-C port achieve adaptive speeds of 10M / 100M / 1G through an independent network chip; the control module assigns IPs to port devices via DHCP service, acts as a network access point for routing data in gateway mode, and enables multi-segment data forwarding in bridge mode.
[0033] During charging, data is automatically uploaded to the cloud platform, supporting multiple upgrade methods including local storage, Web UI, and TFTP. The control module synchronizes device data, such as charging status and network parameters, to the cloud platform in real time via network connection. During firmware upgrades, users can transfer upgrade packages via local storage, Web interface, or TFTP protocol, and the main control chip will complete the program refresh.
[0034] It features firewall functions such as MAC / IP port filtering, remote management, port forwarding, and DMZ, offering flexible system configuration. The control module implements security policies at the software level, filtering unauthorized MAC / IP access and setting remote management permissions; it also supports NTP time synchronization and DDNS dynamic domain name resolution, facilitating network management and device monitoring. Attached Figure Description
[0035] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0036] In the attached diagram:
[0037] Figure 1 This is a schematic diagram of the structural connection of this utility model;
[0038] Figure 2 This is a schematic diagram of the control PCB structure of this utility model. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0040] Please see Figures 1 to 2 As shown, the embodiments provided by this utility model are as follows:
[0041] Example 1
[0042] A 3-in-1 smart converter for routing, switching, and charging, including:
[0043] The charging module includes four Type-C ports, each with its own independent charging chip, compatible with USB Type-C version 1.3 and PD 3.0 protocols.
[0044] The routing and switching module includes one RJ-45 network interface and four Type-C ports, each of which is equipped with an independent network chip.
[0045] The control module is used to switch between gateway and bridge modes and to automatically upload data.
[0046] The power input module has an input of DC19V / 3.42A.
[0047] The indicator module includes a PWR indicator, a LINK / ACT indicator, and a charging adapter indicator.
[0048] Example 2
[0049] To improve charging efficiency, compatibility, and safety, for example, such as Figures 1 to 2 As shown, this utility model also includes: a charging chip using the MAX77958 chip, with each Type-C port outputting 5V / 3A. As an independent charging management chip, the MAX77958 chip can achieve precise voltage and current control for each Type-C port. Through CC detection and PD protocol handshake mechanism, it can quickly identify the charging protocol standard supported by the connected device. While ensuring a stable 5V / 3A output, the built-in overvoltage protection circuit can limit the output voltage within a safe threshold. The overcurrent protection module can monitor current changes in real time and cut off the circuit in case of abnormality. The humidity detection function can prevent circuit failure caused by excessive ambient humidity, thereby significantly improving charging efficiency, compatibility and safety, and effectively protecting the connected device and the converter itself from electrical damage.
[0050] Example 3
[0051] To meet the network speed requirements of different devices and improve users' perception of network connection quality, for example, such as Figures 1 to 2 As shown, this utility model also includes: a network chip using the RTL8153B-VC-CG chip, supporting 10M / 100M / 1G adaptive speeds, and an RJ-45 network interface supporting 1000M speeds, indicated by a green indicator light. The high-speed adaptive capability of the RTL8153B-VC-CG chip allows each Type-C port and RJ-45 interface to automatically match the optimal transmission rate according to the network capabilities of the connected device. The IEEE 802.3ab standard ensures the stability of 1000M high-speed data transmission. The green indicator light is connected to the status pin of the network chip via an optocoupler. When a 1000M connection speed is detected, a high-level light is triggered, providing users with intuitive network status feedback. This design not only meets the network speed requirements of different devices but also enhances users' perception of network connection quality through visual identification, reducing the difficulty of troubleshooting.
[0052] Example 4
[0053] To improve the multitasking capabilities, response speed, and reliability of the device, for example, such as Figures 1 to 2As shown, this utility model also includes: a control module using the MT7621AT chip as the main control chip, configured with 8MB SPI Flash and 128MB DDR3 memory. The dual-core architecture of the MT7621AT chip provides powerful multi-tasking capabilities, enabling simultaneous management of complex functions such as charging control, network routing, and data uploading. The 8MB SPI Flash can store complete firmware programs and configuration parameters, supporting online upgrades and power-off data protection. The 128MB DDR3 memory provides ample operating space for real-time tasks such as DHCP service, firewall rule execution, and system monitoring, ensuring stable performance even when multiple devices are connected simultaneously. This hardware configuration optimizes system resource allocation, improves overall response speed and reliability, and extends the device's lifespan and functional expandability.
[0054] Example 5
[0055] To improve the maintainability and user experience of the equipment, for example, such as Figures 1 to 2 As shown, this utility model also includes a Reset button for resetting the device. The Reset button is connected to the main control chip via an independent reset circuit. When the button is pressed, the generated low-level signal triggers the chip's internal reset logic, restoring the system state to its initial configuration. This hardware-level reset mechanism bypasses potentially faulty software processes, quickly resolving functional abnormalities caused by system crashes, configuration errors, etc. It provides a direct and effective recovery method when users cannot operate through the software interface, significantly improving device maintainability and user experience, and reducing maintenance costs due to temporary malfunctions.
[0056] Example 6
[0057] To build a multi-layered network security protection system, for example, such as Figures 1 to 2 As shown, this utility model also includes: the control module further includes firewall functionality, which includes MAC / IP port filtering, remote management, port forwarding, and DMZ settings. MAC / IP port filtering prevents unauthorized device connections and network intrusion by establishing access control lists. The remote management function allows administrators to make configuration adjustments through a secure channel, improving operational efficiency. The port forwarding mechanism directs external access requests to specific internal devices, enabling service exposure. The DMZ setting creates an isolation zone between the public network and the internal network, protecting the security of core devices. These functions combined form a multi-layered network security protection system, effectively resisting threats such as ARP spoofing, port scanning, and DDoS attacks, ensuring data transmission security and stable device operation, and is particularly suitable for application scenarios with high network security requirements.
[0058] Example 7
[0059] To improve the versatility and manageability of devices and reduce deployment and maintenance complexity, for example, such as Figures 1 to 2 As shown, this utility model also includes: the control module further includes system configuration functions, including device information settings, IP address settings, user management, NTP settings, and DDNS settings. Device information settings allow for customized device identifiers, facilitating centralized management. IP address settings support static / dynamic configuration to adapt to different network environments. The user management function ensures system operation security through hierarchical permission control. NTP settings synchronize the system clock with standard time, ensuring the time accuracy of log recording and data transmission. DDNS settings maintain device accessibility in dynamic IP environments, facilitating remote monitoring and management. These configuration options construct a complete device management system, enabling the converter to flexibly adapt to various network architectures and application requirements, improving the device's versatility and manageability, and reducing deployment and maintenance complexity.
[0060] Working principle:
[0061] When a DC19V / 3.42A power input is connected, the power input module supplies power to the entire converter, and the PWR indicator light in the indicator module lights up, indicating that the device is powered on normally.
[0062] In terms of charging, the four Type-C ports use their own independent charging chips to detect connected devices and identify the charging protocol standards supported by the devices through USB Type-C CC detection and PD protocol, so as to realize 5V / 3A fast charging function, while protecting the devices from overvoltage and overcurrent.
[0063] In terms of network connectivity, one RJ-45 network interface and four Type-C ports are connected via independent network chips, conforming to relevant standards such as IEEE 802.3, and supporting adaptive speeds of 10M / 100M / 1G. The control module uses the MT7621AT as the main control chip, configured with 8MB SPI Flash and 128MB DDR3 memory, and can implement DHCP to assign IP addresses, enabling each device connected to the Type-C port to obtain an IP address.
[0064] The control module can also switch between gateway and bridging modes as needed. In gateway mode, the converter acts as a network access point, enabling routing between different networks; in bridging mode, multiple network segments can be connected to forward data.
[0065] During data transmission, while charging, the control module automatically connects to the network and transmits the current data to the cloud platform through the routing and switching module, thus achieving automatic upload functionality.
[0066] In addition, the control module supports local upgrades, WebUI upgrades, and TFTP upgrades, facilitating firmware updates. System configuration functions allow for settings of device information, IP address, user management, NTP, DDNS, etc. Firewall functions include MAC / IP port filtering, remote management, port forwarding, and DMZ settings, ensuring device and network security. The device can be reset using the Reset button.
[0067] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0068] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A three-in-one intelligent converter for routing, switching, and charging, characterized in that: include: The charging module includes four Type-C ports, each equipped with an independent charging chip, compatible with USB Type-C version 1.3 and PD 3.0 protocols; The routing and switching module includes one RJ-45 network interface and four Type-C ports, each of which is equipped with an independent network chip. The control module is used to switch between gateway and bridging modes and to automatically upload data. A power input module, wherein the input of the power input module is DC19V / 3.42A; The indicator module includes a PWR indicator, a LINK / ACT indicator, and a charging adapter indicator.
2. The intelligent converter for routing, switching, and charging (three-in-one) according to claim 1, characterized in that: The charging chip uses the MAX77958 chip, and the output of each Type-C port is 5V / 3A.
3. The intelligent converter for routing, switching, and charging (three-in-one) according to claim 1, characterized in that: The network chip uses the RTL8153B-VC-CG chip, which supports adaptive speeds of 10M / 100M / 1G, and the RJ-45 network interface supports a speed of 1000M, indicated by a green indicator light.
4. The intelligent converter for routing, switching, and charging (three-in-one) according to claim 1, characterized in that: The control module uses the MT7621AT chip as the main control chip and is equipped with 8MB SPI Flash and 128MB DDR3 memory.
5. The intelligent converter for routing, switching, and charging (three-in-one) according to claim 1, characterized in that: The converter also includes a Reset button for resetting the device.
6. The intelligent converter for routing, switching, and charging (three-in-one) according to claim 1, characterized in that: The control module also includes firewall functionality, which includes MAC / IP port filtering, remote management, port forwarding, and DMZ settings.
7. The intelligent converter for routing, switching, and charging (three-in-one) according to claim 1, characterized in that: The control module also includes system configuration functions, which include device information settings, IP address settings, user management, NTP settings, and DDNS settings.