Multifunctional extension socket

Abstract

The utility model relates to the technical field of extension sockets, in particular to a multifunctional extension socket. Comprising a commercial power input end, a switch module, a socket module, and a first rectification filtering module, an AC-DC control module, a second rectification filtering module and a DC output module which are sequentially connected along a current transmission direction, and further comprises a PD control output module, a HUB control output module, an HDMI output module and a USB output module which are connected with an output end of the DC output module, the commercial power input end is connected with the input end of the switch module. The output end of the switch module is connected with the input ends of the socket module and the first rectification filtering module. The multifunctional extension socket in the embodiment integrates the AC extension socket, the PD fast charging power supply, HUB data transmission and HDMI data conversion functions, not only meets the fast charging requirement of an access device, but also provides an uplink port for data transmission and video transmission for the access device. The problems that sockets are not enough, jacks are not enough when multiple devices are charged, and data interfaces or HDMI interfaces of access devices are not enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power strips, in particular to a multifunctional power strip. Background Art

[0002] Currently, most products on the market are single-function products, such as a separate AC power strip, a separate PD fast charging power supply, a separate HUB data transmission / HDMI data conversion, etc., which are inconvenient to use. Placing multiple products on the desktop will make the desktop messy. The numerous electronic products are also likely to cause more electronic waste, which is not conducive to environmental protection and energy conservation.

[0003] Therefore, it is crucial for those skilled in the art to design a multifunctional power strip with AC power strip, multi-port fast charging power supply, HUB data transmission and HDMI data conversion functions. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a multifunctional power strip with AC power strip, multi-port fast charging power supply, HUB data transmission and HDMI data conversion functions, so as to solve the problem of single power strip function and inconvenience in use in the prior art.

[0005] The utility model discloses a multifunctional power strip, which includes: a mains input end, a switch module, a socket module, a first rectifier and filter module, an AC-DC control module, a second rectifier and filter module, a DC output module, a PD control and output module, a HUB control and output module, an HDMI output module, and a USB output module. The mains input end is connected to the input end of the switch module, the output end of the switch module is respectively connected to the socket module and the input end of the first rectifier and filter module, the output end of the first rectifier and filter module is connected to the input end of the AC-DC control module, the output end of the AC-DC control module is connected to the input end of the second rectifier and filter module, the output end of the second rectifier and filter module is connected to the input end of the DC output module, and the output end of the DC output module is respectively connected to the PD control and output module, the HUB control and output module, the HDMI output module, and the USB output module for supplying power to connected devices or transmitting data.

[0006] Optionally, the PD control output module includes a first PD protocol control circuit and a first female socket, the input end of the first PD protocol control circuit is connected to the output end of the DC output module, and the output end of the first PD protocol control circuit is connected to the first female socket.

[0007] Optionally, the HUB control output module includes a second PD protocol control circuit, a HUB and HDMI control circuit and a second female socket, the input end of the second PD protocol control circuit is connected to the output end of the DC output module, the output end of the second PD protocol control circuit is connected to the input end of the HUB and HDMI control circuit, and the first output end of the HUB and HDMI control circuit is connected to the second female socket.

[0008] Optionally, a data conversion circuit is further arranged between the HUB and HDMI control circuit and the second female socket, the input end of the data conversion circuit is connected to the second output end of the HUB and HDMI control circuit, and the first output end of the data conversion circuit is connected to the second female socket.

[0009] Optionally, the HDMI output module includes a third female socket, and the third female socket is connected to the HUB and the third output end of the HDMI control circuit.

[0010] Optionally, the USB output module includes a USB charging control circuit and a fourth socket, the input end of the USB charging control circuit is connected to the output end of the DC output module, the output end of the USB charging control circuit is connected to the first input end of the fourth socket, and the second input end of the fourth socket is connected to the second output end of the data conversion circuit.

[0011] Optionally, the USB output module also includes a dedicated protocol control circuit and an electronic switching switch, the input end of the dedicated protocol control circuit is connected to the output end of the USB charging control circuit, the output end of the dedicated protocol control circuit is connected to the first input end of the electronic switching switch, the second input end of the electronic switching switch is connected to the third output end of the data conversion circuit, and the output end of the electronic switching switch is connected to the third input end of the fourth female socket.

[0012] Optionally, the dedicated protocol control circuit includes one or more of the SCP protocol, QC3.0 protocol, Apple protocol and Samsung protocol.

[0013] Optionally, the first rectifier and filter module includes an EMC filter circuit, a rectifier circuit and a CLC filter circuit, the input end of the EMC filter circuit is connected to the output end of the switch module, the output end of the EMC filter circuit is connected to the input end of the rectifier circuit, the output end of the rectifier circuit is connected to the input end of the CLC filter circuit, and the output end of the CLC filter circuit is connected to the input end of the AC-DC control module.

[0014] Optionally, the second rectification and filtering module includes a synchronous rectification control circuit and a capacitor filtering circuit, the input end of the synchronous rectification control circuit is connected to the output end of the AC-DC control module, the output end of the synchronous rectification control circuit is connected to the input end of the capacitor filtering circuit, and the output end of the capacitor filtering circuit is connected to the input end of the DC output module.

[0015] Compared with the prior art, the beneficial effect of the multi-function power strip provided by the embodiment of the present invention is that: by designing a multi-function power strip, including a mains input terminal, a switch module, a socket module, a first rectifier and filter module, an AC-DC control module, a second rectifier and filter module, a DC output module, a PD control output module, a HUB control output module, an HDMI output module and a USB output module; the multi-function power strip integrates the functions of an AC power strip, a PD fast charging power supply, a HUB data transmission and an HDMI data conversion function in one, which not only meets the fast charging requirements of the connected device, but also provides an uplink port for data transmission and video transmission for the connected device, which not only effectively solves the problem of insufficient AC sockets when the user needs to power multiple devices, but also solves the defect of insufficient sockets when multiple devices are charging, and also solves the problem of insufficient data interface or HDMI interface of the laptop. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 This is a module frame of a multifunctional power strip provided by the embodiment of the utility model Figure 1 ;

[0018] Figure 2 This is a module frame of a multifunctional power strip provided by the embodiment of the utility model Figure 2 ;

[0019] Figure 3 This is a circuit diagram of a PD control output module provided by an embodiment of the present utility model;

[0020] Figure 4 This is a circuit diagram of a HUB control output module provided by an embodiment of the present utility model;

[0021] Figure 5 This is a module frame of a multifunctional power strip provided by the embodiment of the utility model Figure 3 . DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.

[0023] like Figures 1 to 5 As shown, the utility model provides a specific embodiment of a multifunctional power strip.

[0024] A multifunctional socket, reference Figure 1 The multi-function power strip includes: a mains input terminal 110, a switch module 120, a socket module 130, a first rectifier and filter module 210, an AC-DC control module 220, a second rectifier and filter module 230, a DC output module 240, a PD control output module 310, a HUB control output module 320, an HDMI output module 330, and a USB output module 340.

[0025] Among them, reference Figure 1 The AC power input terminal 110 is connected to the input terminal of the switch module 120, the output terminal of the switch module 120 is respectively connected to the input terminals of the socket module 130 and the first rectifier and filter module 210, the output terminal of the first rectifier and filter module 210 is connected to the input terminal of the AC-DC control module 220, the output terminal of the AC-DC control module 220 is connected to the input terminal of the second rectifier and filter module 230, the output terminal of the second rectifier and filter module 230 is connected to the input terminal of the DC output module 240, and the output terminal of the DC output module 240 is respectively connected to the PD control output module 310, the HUB control output module 320, the HDMI output module 330 and the USB output module 340 for powering the connected device or transmitting data.

[0026] Specifically, refer to Figure 1 The AC input terminal 110 is used to connect to the external power grid to obtain electrical energy; the socket module 130 is connected to the AC input terminal 110 to obtain electrical energy and power the connected devices. The input terminal of the switch module 120 is connected to the AC input terminal 110, and the output terminal of the switch module 120 is connected to the socket module 130 for power on and off control of the power supply; the socket module 130 specifically includes at least two 5-hole AC sockets and at least one 2-hole AC socket.

[0027] Further, refer to Figure 1 The input end of the first rectifying and filtering module 210 is connected to the output end of the switching module 120 to filter the input current and rectify the AC voltage at the input end into a pulsating DC voltage.

[0028] Further, refer to Figure 1The input end of the AC-DC control module 220 is connected to the output end of the first rectifier and filter module 210, and the output end of the AC-DC control module 220 is connected to the input end of the second rectifier and filter module 230, so as to control the second rectifier and filter module 230 to convert the rectified and filtered high-frequency pulsed AC voltage into a lower DC voltage, and filter the DC voltage into a smoother DC voltage through the second rectifier and filter module 230 for powering the subsequent circuit.

[0029] Further, refer to Figure 1 The input end of the DC output module 240 is connected to the output end of the second rectifier and filter module 230, and the output end of the DC output module 240 is respectively connected to the PD control output module 310, the HUB control output module 320, the HDMI output module 330 and the USB output module 340; it is used to output the smoothed DC voltage output by the second rectifier and filter module 230 to the PD control output module 310, the HUB control output module 320, the HDMI output module 330 and the USB output module 340, and to power the electronic devices connected to the PD control output module 310, the HUB control output module 320, the HDMI output module 330 or the USB output module 340.

[0030] Further, refer to Figure 1 The input end of the PD control output module 310 is connected to the output end of the DC output module 240, and the output end of the PD control output module 310 is used to connect to an external power-consuming device. The PD control output module 310 is used to perform 65W PD fast charging for the connected device; the input end of the HUB control module is connected to the output end of the DC output module 240, and the output end of the HUB control module is used to connect to an external device to perform 65W PD fast charging for the connected device, and at the same time provide a data transmission uplink port for the connected device.

[0031] Further, refer to Figure 1 The input end of the HDMI output module 330 is connected to the output end of the DC output module 240, and the output end of the HDMI output module 330 is used to connect to an external power-consuming device to realize the 4K 60HZ video signal output of the HDMI interface.

[0032] Further, refer to Figure 1 The input end of the USB output module 340 is connected to the output end of the DC output module 240, and the output end of the USB output module 340 is used to connect to an external power device to implement the HUB 3.0 5Gbps data transmission function.

[0033] In the prior art, the functions of power strips are relatively single, generally including a separate AC power strip, a separate PD fast charging power source, a separate HUB data transmission / HDMI data conversion, etc. As the types of electronic devices used increase, a single power strip product has many inconveniences in use, so that in daily use, multiple single power strip products need to be equipped to meet the charging or data transmission needs of different electronic devices. Placing multiple power strip products on the desktop will make the desktop messy, and the wide variety of power strip products will easily cause more electronic waste, which is not conducive to environmental protection and energy saving.

[0034] In this embodiment, a multifunctional power strip is designed, including a mains power input terminal 110, a switch module 120, a socket module 130, a first rectifier and filter module 210, an AC-DC control module 220, a second rectifier and filter module 230, a DC output module 240, a PD control output module 310, a HUB control output module 320, an HDMI output module 330 and a USB output module 340; the multifunctional power strip integrates the functions of an AC power strip, a PD fast charging power supply, a HUB data transmission and an HDMI data conversion function, which not only meets the fast charging requirements of the connected device, but also provides an uplink port for data transmission and video transmission for the connected device, which not only effectively solves the problem of insufficient AC sockets when the user needs to power multiple devices, but also solves the defect of insufficient sockets when charging multiple devices, and also solves the problem of insufficient data interface or HDMI interface of the laptop.

[0035] In one embodiment, reference Figure 2 The PD control output module 310 includes a first PD protocol control circuit 311 and a first female socket 312. The input end of the first PD protocol control circuit 311 is connected to the output end of the DC output module 240, and the output end of the first PD protocol control circuit 311 is connected to the first female socket 312.

[0036] Specifically, refer to Figure 3 The first PD protocol control circuit 311 is used for charging control, PD protocol control, and intelligent power distribution control. The first PD protocol control circuit 311 includes a C+C dual-port SOC that integrates a 7A buck controller and multiple fast charging protocols such as PD3.0. The SW pin of the C+C dual-port SOC serves as its voltage output pin and is connected to the first mother socket 312. An inductor L2 and MOS transistors M2 and M4 for controlling the voltage reduction of the inductor L2 are arranged between the SW pin of the C+C dual-port SOC and the first mother socket 312.

[0037] Further, refer to Figure 3The first female socket 312 includes a USB-C1 interface, and the CC1 pin and CC2 pin of the USB-C1 interface are connected to the CC1(1) pin and CC2(1) pin of the C+C dual-port SOC as its protocol pins for protocol communication; the VBUS pin of the USB-C1 interface is connected to the output end of the inductor L2 as its voltage input end, and a switch MOS tube M3 is also provided between the voltage input end of the first female socket 312 and the inductor L2.

[0038] In this embodiment, reference Figure 3 The first PD protocol control circuit 311 is mainly used to convert 21.6V low-voltage DC power into a Type-c fast charging interface circuit with PD fast charging function and provide it to charging devices such as laptops / tablets / mobile phones. The USB-C1 interface supports a maximum PD3.0 65W fast charging protocol output.

[0039] In one embodiment, reference Figure 2 The HUB control output module 320 includes a second PD protocol control circuit 321, a HUB and HDMI control circuit 322 and a second female socket 323. The input end of the second PD protocol control circuit 321 is connected to the output end of the DC output module 240, the output end of the second PD protocol control circuit 321 is connected to the input end of the HUB and HDMI control circuit 322, and the first output end of the HUB and HDMI control circuit 322 is connected to the second female socket 323.

[0040] Specifically, refer to Figure 4 The second PD protocol control circuit 321 includes a multi-fast charging protocol dual-port charging chip, which supports fast charging output of any port A+C and supports independent current limiting of the two ports; the SW pin of the multi-fast charging protocol dual-port charging chip serves as its voltage output pin and is connected to the second female socket 323, and an inductor L3 and a MOS tube M5 and a MOS tube M9 for controlling the voltage reduction of the inductor L3 are arranged between the SW pin of the multi-fast charging protocol dual-port charging chip and the second female socket 323.

[0041] Further, refer to Figure 4 The second female socket 323 includes a USB-C2 interface. The CC1 pin and CC2 pin of the USB-C2 interface are connected to the CC1 pin and CC2 pin of the multi-fast charging protocol dual-port charging chip as its protocol pins for protocol communication; the VBUS pin of the USB-C2 interface is connected to the output end of the inductor L3 as its voltage input end, and a switch MOS tube M6 is also provided between the voltage input end of the second female socket 323 and the inductor L3.

[0042] In this embodiment, the second PD protocol control circuit 321, HUB and HDMI control circuit 322 are mainly used to convert 21.6V low-voltage DC power into a Type-c fast charging interface circuit with PD fast charging function and provide it to charging devices such as laptops / tablets / mobile phones; and at the same time serve as a computer uplink port to realize data transmission function.

[0043] In one embodiment, reference Figure 2 The HDMI output module 330 includes a third female socket 331 , which is connected to the HUB and the third output end of the HDMI control circuit 322 .

[0044] Specifically, refer to Figure 2 The third female socket 331 is an HDMI female socket. The HDMI port is a fully digital video and sound transmission interface used to connect high-definition TVs, monitors, projectors, video players, game consoles and other devices. In this embodiment, the HDMI data conversion function is formed by the HUB and HDMI control circuit 322 and the HDMI female socket, which can realize the 4K60HZ video signal output of the HDMI interface.

[0045] In one embodiment, reference Figure 2 A data conversion circuit 324 is also provided between the HUB and HDMI control circuit 322 and the second female socket 323. The input end of the data conversion circuit 324 is connected to the second output end of the HUB and HDMI control circuit 322, and the first output end of the data conversion circuit 324 is connected to the second female socket 323.

[0046] Specifically, refer to Figure 2 The first output end of the data conversion circuit 324 is connected to the second female socket 323, and the second output end of the data conversion module is connected to the USB output module 340. The data conversion circuit 324 is mainly used for data conversion of HUB3.0.

[0047] In one embodiment, reference Figure 2 The USB output module 340 includes a USB charging control circuit 341 and a fourth female socket 342. The input end of the USB charging control circuit 341 is connected to the output end of the DC output module 240, the output end of the USB charging control circuit 341 is connected to the first input end of the fourth female socket 342, and the second input end of the fourth female socket 342 is connected to the second output end of the data conversion circuit 324.

[0048] Specifically, refer to Figure 2The output end of the USB charging control circuit 341 is connected to the first input end of the fourth female socket 342 to provide voltage to the fourth female socket 342. The fourth female socket 342 is a USB 3.0 female socket. The second output end of the conversion circuit is connected to the second input end of the USB 3.0 female socket to constitute a HUB 3.0 data conversion function to realize the HUB 3.0 5Gbps data transmission function.

[0049] In one embodiment, reference Figure 2 The USB output module 340 also includes a dedicated protocol control circuit 343 and an electronic switching switch 344. The input end of the dedicated protocol control circuit 343 is connected to the output end of the USB charging control circuit 341, the output end of the dedicated protocol control circuit 343 is connected to the first input end of the electronic switching switch 344, the second input end of the electronic switching switch 344 is connected to the third output end of the data conversion circuit 324, and the output end of the electronic switching switch 344 is connected to the third input end of the fourth female socket 342.

[0050] Specifically, refer to Figure 2 The dedicated protocol control circuit 343 includes one or more fast charging protocols such as SCP protocol, QC3.0 protocol, Apple protocol and Samsung protocol. The input end of the dedicated protocol control circuit 343 is connected to the output end of the USB charging control circuit 341 to obtain electrical energy. The dedicated protocol control circuit 343 cooperates with the USB charging control circuit 341 and the electronic switching switch 344 to provide fast charging function for the USB 3.0 socket.

[0051] Further, refer to Figure 2 , the first input end of the electronic switching switch 344 is connected to the output end of the dedicated protocol control circuit 343, the second input end of the electronic switching switch 344 is connected to the third output end of the data conversion circuit 324, and the output end of the electronic switching switch 344 is connected to the third input end of the fourth female socket 342; when the electronic switching switch 344 switches the USB 3.0 female socket to the dedicated protocol control circuit 343, fast charging can be achieved for the connected device. When the electronic switching switch 344 switches the dedicated protocol control circuit 343 to the data conversion circuit 324, HUB3.0 5Gbps data conversion can be achieved for the connected device, so that the USB 3.0 female socket can not only realize HUB 3.0 5Gbps data transmission but also realize fast charging protocols such as SCP and QC3.0 to realize fast charging function for mobile devices.

[0052] In this embodiment, reference Figure 2The 65W PD fast charging function is composed of the first PD protocol control circuit 311 and the first female socket 312. This part supports the maximum PD3.0 65W fast charging protocol output, which is used to convert 21.6V low-voltage DC power into Type-c fast charging voltage with PD fast charging function and provide it to laptops / tablets / mobile phones and other devices for charging.

[0053] In this embodiment, reference Figure 2 The second PD protocol control circuit 321, HUB and HDMI control circuit 322 and the second female socket 323 constitute a 65W PD fast charging function and data transmission upstream port, which is used to convert 21.6V low-voltage DC power into Type-c fast charging voltage with PD fast charging function and provide it to charging devices such as laptops / tablets / mobile phones, and at the same time it can also serve as the computer upstream port.

[0054] In this embodiment, reference Figure 2 The HUB and HDMI control circuit 322 and the third female socket 331 constitute the HDMI data conversion function to realize the 4K 60HZ video signal output of the HDMI interface; the USB charging control circuit 341 provides the required voltage to the USB3.0 female socket, and the data conversion circuit 324 and the USB 3.0 female socket constitute the HUB 3.0 data conversion function; the dedicated protocol control circuit 343 (SCP, QC3.0 and other fast charging protocols) and the electronic switching switch 344 cooperate to constitute the fast charging function of the USB3.0 female socket.

[0055] Among them, reference Figure 2 When the upstream end of the second female socket 323 is connected to a laptop computer through a full-function Type-C line interface, the laptop can read or write data transmission of USB devices (including keyboard, mouse, 2.4G wireless receiving head, U disk, solid-state hard disk, etc.) connected to the USB 3.0 female socket through the data conversion circuit 324 while charging; at the same time, the video signal in the laptop computer can be projected to other displays through the HDMI interface through the HUB and the HDMI control part in the HDMI control circuit 322.

[0056] Among them, the USB 3.0 female socket can not only realize HUB 3.0 5Gbps data transmission but also realize fast charging protocols such as SCP and QC3.0 to realize fast charging function for mobile devices. The specific switching method is as follows:

[0057] The first PD protocol control circuit 311 can detect the current flowing through the USB 3.0 socket. When the current is detected to be greater than 500mA, it is determined that the device inserted into the USB 3.0 socket is a mobile phone device. The first PD protocol control circuit 311 outputs a high level (i.e., a switching control signal) to the electronic switching switch 344. The DP and DM signal pins of the USB 3.0 socket are switched by the electronic switching switch 344 to be connected to the dedicated protocol control circuit 343 (SCP, QC3.0 and other fast charging protocols), so that the connected mobile phone device can achieve the fast charging function.

[0058] Further, refer to Figure 2 When the current is detected to be less than 500mA, it is determined that the device inserted into the USB 3.0 female socket is a USB device (including a keyboard, mouse, 2.4G wireless receiver head, U disk, solid-state hard disk, etc.); the first PD protocol control circuit 311 does not output a high-level signal, and the electronic switching switch 344 defaults to connecting the DP DM of the USB 3.0 female socket to the DP and DM signal pins of the data conversion circuit 324. The HUB data transmission function is successfully activated, thereby realizing the USB 2.0 data function (USB 3.0 must be backward compatible with USB 2.0) and the laptop connected to the multi-function socket can charge while also performing USB2.0 data transmission for the USB devices (including keyboard, mouse, 2.4G wireless receiver head, U disk, solid-state hard disk, etc.) connected to the multi-function socket.

[0059] In one embodiment, reference Figure 5 The first rectifier and filter module 210 includes an EMC filter circuit 211, a rectifier circuit 212, and a CLC filter circuit 213. The input end of the EMC filter circuit 211 is connected to the output end of the switch module 120, the output end of the EMC filter circuit 211 is connected to the input end of the rectifier circuit 212, the output end of the rectifier circuit 212 is connected to the input end of the CLC filter circuit 213, and the output end of the CLC filter circuit 213 is connected to the input end of the AC-DC control module 220.

[0060] Specifically, refer to Figure 5 The voltage input end of the EMC filter circuit 211 is connected to the voltage output end of the switch module 120 to suppress the electromagnetic interference (EMC) energy generated by itself and resist external electromagnetic interference (EMC) energy; the voltage input end of the rectifier circuit 212 is connected to the voltage output end of the EMC filter circuit 211 to rectify the input AC voltage into a pulsating DC voltage; the voltage input end of the CLC filter circuit 213 is connected to the voltage output end of the rectifier circuit 212 to filter out the differential mode interference generated by the circuit and smooth the pulsating DC voltage after rectification.

[0061] Further, refer to Figure 5 The voltage input end of the AC-DC control module 220 is connected to the voltage output end of the CLC filter circuit 213 to convert the DC voltage filtered by the CLC filter circuit 213 into a lower high-frequency pulse AC voltage and provide it to the second rectifier and filter module 230.

[0062] In one embodiment, reference Figure 5 The second rectification and filtering module 230 includes a synchronous rectification control circuit 231 and a capacitor filtering circuit 232. The input end of the synchronous rectification control circuit 231 is connected to the output end of the AC-DC control module 220, the output end of the synchronous rectification control circuit 231 is connected to the input end of the capacitor filtering circuit 232, and the output end of the capacitor filtering circuit 232 is connected to the input end of the DC output module 240.

[0063] Specifically, refer to Figure 5 The voltage input end of the synchronous rectification control circuit 231 is connected to the voltage output end of the AC-DC control module 220 to rectify the high-frequency pulse AC voltage provided by the AC-DC control circuit into a lower DC voltage; the voltage input end of the capacitor filter circuit 232 is connected to the voltage output end of the synchronous rectification control circuit 231 to convert the synchronous rectification voltage into a smoother DC voltage to power the subsequent circuit.

[0064] Among them, reference Figure 5 The working principle of the first rectifier and filter module 210 and the second rectifier and filter module 230 is as follows: after the switch module 120SW1 is turned on, the mains voltage input from the mains input terminal 110 is supplied to the socket module 130 and powers the electrical equipment connected to the socket module 130. At the same time, the AC voltage input from the mains input terminal 110 is loaded onto the EMC filter circuit 211 for filtering and then supplied to the rectifier circuit 212. The rectifier circuit 212 rectifies the input AC voltage into a pulsating DC voltage of 1.414 times the AC voltage and supplies it to the AC-DC control module 220 through the CLC filter circuit 213. The C-DC control module 220 converts the AC voltage output by the CLC filter circuit 213 into a DC voltage of 1.414 times the AC voltage through its internal switching MOS tube and high-frequency transformer, and provides it to the synchronous rectification control circuit 231; the synchronous rectification control circuit 231 converts the high-frequency pulse AC voltage into a 21.6V DC voltage through its internal rectification MOS tube and capacitor filter circuit 232, and provides it to the PD control output module 310, HUB control output module 320, HDMI output module 330 and USB output module 340 through the DC output module 240.

[0065] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multifunctional power strip, characterized in that: include: A mains input end, a switch module, a socket module, a first rectifier and filter module, an AC-DC control module, a second rectifier and filter module, a DC output module, a PD control output module, a HUB control output module, an HDMI output module and a USB output module, wherein the mains input end is connected to the input end of the switch module, the output end of the switch module is respectively connected to the socket module and the input end of the first rectifier and filter module, the output end of the first rectifier and filter module is connected to the input end of the AC-DC control module, the output end of the AC-DC control module is connected to the input end of the second rectifier and filter module, the output end of the second rectifier and filter module is connected to the input end of the DC output module, and the output end of the DC output module is respectively connected to the PD control output module, the HUB control output module, the HDMI output module and the USB output module for powering the access device or transmitting data.

2. The multifunctional power strip according to claim 1, characterized in that: The PD control output module includes a first PD protocol control circuit and a first female socket. The input end of the first PD protocol control circuit is connected to the output end of the DC output module, and the output end of the first PD protocol control circuit is connected to the first female socket.

3. The multifunctional power strip according to claim 1, characterized in that: The HUB control output module includes a second PD protocol control circuit, a HUB and HDMI control circuit and a second female socket. The input end of the second PD protocol control circuit is connected to the output end of the DC output module, the output end of the second PD protocol control circuit is connected to the input end of the HUB and HDMI control circuit, and the first output end of the HUB and HDMI control circuit is connected to the second female socket.

4. The multifunctional power strip according to claim 3, characterized in that: A data conversion circuit is also provided between the HUB and HDMI control circuit and the second female socket. The input end of the data conversion circuit is connected to the second output end of the HUB and HDMI control circuit, and the first output end of the data conversion circuit is connected to the second female socket.

5. The multifunctional power strip according to claim 3, characterized in that: The HDMI output module includes a third female socket, and the third female socket is connected to the HUB and the third output end of the HDMI control circuit.

6. The multifunctional power strip according to claim 4, characterized in that: The USB output module includes a USB charging control circuit and a fourth socket. The input end of the USB charging control circuit is connected to the output end of the DC output module, the output end of the USB charging control circuit is connected to the first input end of the fourth socket, and the second input end of the fourth socket is connected to the second output end of the data conversion circuit.

7. The multifunctional power strip according to claim 6, characterized in that: The USB output module also includes a dedicated protocol control circuit and an electronic switching switch. The input end of the dedicated protocol control circuit is connected to the output end of the USB charging control circuit, the output end of the dedicated protocol control circuit is connected to the first input end of the electronic switching switch, the second input end of the electronic switching switch is connected to the third output end of the data conversion circuit, and the output end of the electronic switching switch is connected to the third input end of the fourth female socket.

8. The multifunctional power strip according to claim 7, characterized in that: The dedicated protocol control circuit includes one or more of the SCP protocol, QC3.0 protocol, Apple protocol and Samsung protocol.

9. The multifunctional power strip according to claim 1, characterized in that: The first rectifier and filter module includes an EMC filter circuit, a rectifier circuit, and a CLC filter circuit. The input end of the EMC filter circuit is connected to the output end of the switch module, the output end of the EMC filter circuit is connected to the input end of the rectifier circuit, the output end of the rectifier circuit is connected to the input end of the CLC filter circuit, and the output end of the CLC filter circuit is connected to the input end of the AC-DC control module.

10. The multifunctional power strip according to claim 1, characterized in that: The second rectification and filtering module includes a synchronous rectification control circuit and a capacitor filtering circuit. The input end of the synchronous rectification control circuit is connected to the output end of the AC-DC control module, the output end of the synchronous rectification control circuit is connected to the input end of the capacitor filtering circuit, and the output end of the capacitor filtering circuit is connected to the input end of the DC output module.

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