Multifunctional extension socket

Abstract

The utility model relates to the technical field of adapters, in particular to a multifunctional extension socket. Comprising a commercial power input end, an AC socket module, a rectification filtering module, a flyback control module, a synchronous rectification control module, a DC output module, a first charging module, a second charging module and a wireless charging module, the AC socket module and the rectification filtering module are connected with the commercial power input end, and the flyback control module is connected with the rectification filtering module and the synchronous rectification control module. The input end of the DC output module is connected with the synchronous rectification control module, and the output end of the DC output module is connected with the first charging module, the second charging module and the wireless charging module; the wireless charging module comprises a wireless charging Buck control and PD protocol control unit and a wireless charging control unit. The wireless charging Buck control and PD protocol control unit is connected with the DC output module and the wireless charging control unit. According to the scheme, the wireless charging module is arranged, so that 25W wireless quick charging of the iPhone mobile phone is realized, and an iPhone user has faster wireless charging experience.

Description

Technical Field

[0001] This utility model relates to the field of adapter technology, and in particular to a multifunctional power strip. Background Technology

[0002] As a basic power extension device, power strips have gradually evolved from traditional single power supply functions to multi-functional products integrating USB charging, smart control, and other functions. In recent years, with the popularization of wireless charging technology, power strips have begun to integrate Qi standard wireless charging modules to improve user convenience. Although existing multi-functional power strips provide wireless charging functions, they usually only support 15W charging for iPhones, making it difficult to achieve a faster wireless charging experience.

[0003] Therefore, designing a multi-functional power strip with a faster wireless charging experience is of great importance to those skilled in the art. Utility Model Content

[0004] This utility model provides a multi-functional power strip with a faster wireless charging experience to solve the problem that the prior art can only support 15W charging.

[0005] This utility model discloses a multifunctional power strip, comprising: an AC power input terminal, an AC socket module, a rectifier and filter module, a flyback control module, a synchronous rectification control module, a DC output module, a first charging module, a second charging module, and a wireless charging module. The input terminals of the AC socket module and the rectifier and filter module are both connected to the AC power input terminal. The output terminal of the rectifier and filter module is connected to the input terminal of the flyback control module. The output terminal of the flyback control module is connected to the input terminal of the synchronous rectification control module. The output terminal of the synchronous rectification control module is connected to the DC output module. The DC output module is connected to the first charging module, the second charging module, and the wireless charging module. The wireless charging module includes a wireless charging Buck control and PD protocol control unit and a wireless charging control unit. The input terminal of the wireless charging Buck control and PD protocol control unit is connected to the DC output module, and the output terminal of the wireless charging Buck control and PD protocol control unit is connected to the wireless charging control unit, for charging external electronic devices.

[0006] Optionally, the wireless charging Buck control and PD protocol control unit includes a wireless charging Buck control circuit and a third PD protocol control circuit. The input terminal of the wireless charging Buck control circuit is connected to the DC output module, the output terminal of the wireless charging Buck control circuit is connected to the wireless charging control unit, and the CC pin of the wireless charging control unit is connected to the CC pin of the third PD protocol control circuit.

[0007] Optionally, the first charging module includes a first Buck control and PD protocol control unit, a swivel telescopic cable, and a charging interface. The input terminal of the first Buck control and PD protocol control unit is connected to the DC output module, and the output terminal of the first Buck control and PD protocol control unit is connected to the charging interface through the swivel telescopic cable.

[0008] Optionally, the first Buck control and PD protocol control unit includes a first Buck control circuit and a first PD protocol control circuit. The input terminal of the first Buck control circuit is connected to the DC output module, the output terminal of the first Buck control circuit is connected to the charging interface, and the CC pin of the rotating shaft telescopic cable is connected to the CC pin of the first PD protocol control circuit.

[0009] Optionally, the second charging module includes a second Buck control and PD protocol control unit, a first female connector, and a second female connector. The input terminal of the second Buck control and PD protocol control unit is connected to the DC output module, and the output terminal of the Buck control and PD protocol control unit is connected to the first female connector and the second female connector, respectively.

[0010] Optionally, the second Buck control and PD protocol control unit includes a second Buck control circuit and a second PD protocol control circuit. The input terminal of the second Buck control circuit is connected to the DC output module, and the output terminal of the second Buck control circuit is connected to the first female connector and the second female connector respectively. The CC pin of the first female connector is connected to the CC pin of the second PD protocol control circuit, and the DP DM pin of the second female connector is connected to the DP DM pin of the second PD protocol control circuit.

[0011] Optionally, the charging interface is a Type-C interface.

[0012] Optionally, the first female connector is a Type-C female connector.

[0013] Optionally, the second female connector is a USB female connector.

[0014] Optionally, it also includes an overload switch, which is disposed between the AC power input terminal and the AC socket module, and between the AC power input terminal and the rectifier filter module.

[0015] Compared with the prior art, the beneficial effects of the multi-functional power strip provided by this utility model embodiment are as follows: By designing a multi-functional power strip, including an AC power input terminal, an AC socket module, a rectifier and filter module, a flyback control module, a synchronous rectification control module, a DC output module, a first charging module, a second charging module, and a wireless charging module, the input terminals of the AC socket module and the rectifier and filter module are both connected to the AC power input terminal. The output terminal of the rectifier and filter module is connected to the input terminal of the flyback control module. The output terminal of the flyback control module is connected to the input terminal of the synchronous rectification control module. The output terminal of the synchronous rectification control module is connected to the DC output module. The DC output module is connected to the first charging module, the second charging module, and the wireless charging module respectively. The wireless charging module includes a wireless charging Buck control and a PD protocol control unit and a wireless charging module. The input terminals of the wired charging control unit, the wireless charging Buck control unit, and the PD protocol control unit are connected to the DC output module, and the output terminal of the wireless charging Buck control unit is connected to the wireless charging control unit for charging external electronic devices. This solution sets up a wireless charging Buck control unit between the DC output module and the wireless charging control unit. The PD protocol control unit communicates with the wireless charging control unit via a CC handshake to request the required voltage. The wireless charging Buck control unit then converts the DC voltage to the required voltage to achieve 25W wireless fast charging. This eliminates the need for an additional USB cable to power the wireless charging module, making it more convenient and providing a faster wireless charging experience. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the multifunctional power strip provided in this embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the first charging module, the second charging module, and the wireless charging module provided in this embodiment of the utility model.

[0019] The labels for the attached figures are as follows:

[0020] 10. AC power input terminal; 20. AC socket module; 30. Rectifier and filter module; 40. Flyback control module; 50. Synchronous rectification control module; 60. DC output module; 70. First charging module; 80. Second charging module; 90. Wireless charging module; 71. First Buck control and PD protocol control unit; 72. Spindle telescopic cable; 73. Charging interface; 81. Second Buck control and PD protocol control unit; 82. First female connector; 83. Second female connector; 91. Wireless charging Buck control and PD protocol control unit; 92. Wireless charging control unit; 711. First Buck control circuit; 712. First PD protocol control circuit; 811. Second Buck control circuit; 812. Second PD protocol control circuit; 911. Wireless charging Buck control circuit; 912. Third PD protocol control circuit; 100. Button. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figure 1 and Figure 2 As shown, this utility model provides a specific embodiment of a multifunctional power strip.

[0023] A multi-functional power strip, reference Figure 1 The multi-functional power strip includes: AC power input terminal 10, AC socket module 20, rectifier and filter module 30, flyback control module 40, synchronous rectification control module 50, DC output module 60, first charging module 70, second charging module 80, and wireless charging module 90.

[0024] The AC power input terminal 10 is used to connect to external AC power. The input terminal of the AC socket module 20 is connected to the AC power input terminal 10, and the output terminal of the AC socket module 20 is used to connect to external electrical equipment. The AC socket module 20 is mainly used for the expansion of electrical equipment and can provide power to multiple household appliances (maximum power not exceeding 2500W). The input terminal of the rectifier and filter module 30 is connected to the AC power input terminal 10. The rectifier and filter module 30 is used to rectify the AC voltage input to the AC power input terminal 10 into a pulsating DC voltage, while simultaneously suppressing EMC energy. The output terminal of the rectifier and filter module 30... The output terminal is connected to the input terminal of the flyback control module 40, which converts the rectified DC voltage into a lower high-frequency pulse AC voltage. The output terminal of the flyback control module 40 is connected to the input terminal of the synchronous rectification control module 40, which rectifies the high-frequency pulse AC voltage provided by the flyback control module 40 into a 22V DC voltage. The output terminal of the synchronous rectification control module 50 is connected to the DC output module 60 to output the rectified 22V DC voltage to the DC output module 60 to power the subsequent circuits.

[0025] The DC output module 60 is connected to the first charging module 70, the second charging module 80, and the wireless charging module 90, respectively, to output 22V DC voltage to the first charging module 70, the second charging module 80, and the wireless charging module 90. The first charging module 70 is used to provide 65W PD fast charging and can be connected to devices such as laptops / tablets / mobile phones, and provides 65W PD power to these devices. The second charging module 80 is used to provide 65W PD fast charging and SCP 22.5W fast charging and can be connected to devices such as laptops / tablets / mobile phones, and provides 65W PD fast charging or SCP 22.5W fast charging to these devices.

[0026] refer to Figure 1 The wireless charging module 90 provides a maximum of 25W wireless charging for iPhones. The wireless charging module 90 includes a wireless charging Buck control and PD protocol control unit 91 and a wireless charging control unit 92. The input terminal of the wireless charging Buck control and PD protocol control unit 91 is connected to the DC output module 60, and the output terminal of the wireless charging Buck control and PD protocol control unit 91 is connected to the wireless charging control unit 92. The wireless charging Buck control and PD protocol control unit 91 converts 22V low-voltage DC power into the voltage required for wireless charging and provides it to the wireless charging control unit 92. The wireless charging control unit 92 converts the acquired voltage into a high-frequency AC signal and applies it to the coil in the wireless charging control module to achieve electromagnetic induction wireless charging.

[0027] The rectifier and filter module 30 includes an EMC filter unit and a rectifier unit. The input terminal of the EMC filter unit is connected to the mains input terminal 10, and the output terminal of the EMC filter unit is connected to the input terminal of the rectifier unit to suppress EMC energy. The rectifier unit adopts a rectifier bridge circuit, which is used to rectify the AC voltage output by the EMC filter unit into a pulsating DC voltage and supply it to the subsequent modules.

[0028] Specifically, the flyback control module 40 can be a high-frequency QR gallium nitride flyback control module 40. The high-frequency QR gallium nitride flyback control module 40 is a high-efficiency power module that combines the high-frequency characteristics of GaN power devices with quasi-resonant soft-switching technology. It integrates GaN driving, QR control and protection functions, and has high power density and high-efficiency AC-DC conversion functions.

[0029] While existing multi-functional power strips offer wireless charging capabilities, they typically only support 15W charging for iPhones, making it difficult to achieve a faster wireless charging experience.

[0030] In this embodiment, a multi-functional power strip is designed, including an AC power input terminal 10, an AC socket module 20, a rectification and filtering module 30, a flyback control module 40, a synchronous rectification control module 50, a DC output module 60, a first charging module 70, a second charging module 80, and a wireless charging module 90. The input terminals of the AC socket module 20 and the rectification and filtering module 30 are both connected to the AC power input terminal 10. The output terminal of the rectification and filtering module 30 is connected to the input terminal of the flyback control module 40. The output terminal of the flyback control module 40 is connected to the input terminal of the synchronous rectification control module 50. The output terminal of the synchronous rectification control module 50 is connected to the DC output module 60. The DC output module 60 is connected to the first charging module 70, the second charging module 80, and the wireless charging module 90. The wireless charging module 90 includes a wireless charging port. The wireless charging buck control and PD protocol control unit 91 and the wireless charging control unit 92 are configured to charge external electronic devices. The input terminal of the wireless charging buck control and PD protocol control unit 91 is connected to the DC output module 60, and the output terminal of the wireless charging buck control and PD protocol control unit 91 is connected to the wireless charging control unit 92. The solution sets up the wireless charging buck control and PD protocol control unit 91 between the DC output module 60 and the wireless charging control unit 92. The wireless charging buck control and PD protocol control unit 91 communicates with the wireless charging control unit 92 via PD protocol control to request the required voltage. The wireless charging buck control and PD protocol control unit 91 converts the DC voltage to the required voltage to achieve 25W wireless fast charging, resulting in a faster wireless charging experience.

[0031] In one embodiment, reference Figure 1 The multi-functional power strip also includes an overload switch 100, which is located between the AC power input terminal 10 and the AC socket module 20, and between the AC power input terminal 10 and the rectifier filter module 30. The overload switch 100 is mainly used for overload protection of the AC socket module 20 and switching control of the entire multi-functional power strip. Its working principle is as follows: when the AC voltage is input to the overload switch 100 and the AC socket module 20 through the AC power input terminal 10, when the overload switch 100 is closed, it can not only provide overload protection for the AC socket, but also supply power to the AC socket module 20 and the subsequent circuits.

[0032] refer to Figure 1 The AC socket module 20 includes four 5-hole AC sockets. All four 5-hole AC socket modules 20 are used for the expansion of electrical equipment and can provide power to multiple household appliances (maximum power not exceeding 2500W). They can provide power to four household appliances at the same time.

[0033] In one embodiment, reference Figure 2 The wireless charging Buck control and PD protocol control unit 91 includes a wireless charging Buck control circuit 911 and a third PD protocol control circuit 912. The input terminal of the wireless charging Buck control circuit 911 is connected to the DC output module 60, and the output terminal of the wireless charging Buck control circuit 911 is connected to the wireless charging control unit 92. The CC pin of the wireless charging control unit 92 is connected to the CC pin of the third PD protocol control circuit 912.

[0034] Specifically, refer to Figure 2 The wireless charging Buck control and PD protocol control unit 91 is used to provide the required voltage to the wireless charging control unit 92. The wireless charging control unit 92 is used to provide a maximum of 25W wireless charging function for Apple mobile phones. Its working principle is as follows: The protocol IC in the wireless charging control unit 92 communicates with the CC pin of the control IC of the third PD protocol control circuit 912 through the CC pin and requests the voltage required for wireless charging. When the control IC of the third PD protocol control circuit 912 receives the request information, the wireless charging Buck control circuit 911 converts the 22V low-voltage DC power into the voltage required for wireless charging and provides it to the wireless charging control unit 92. The wireless charging control unit 92 starts to work. The wireless charging control unit 92 converts the required voltage into a high-frequency AC signal and applies it to the coil in the wireless charging control unit 92 to realize the electromagnetic induction wireless charging function.

[0035] In one embodiment, reference Figure 1 and Figure 2The first charging module 70 includes a first Buck control and PD protocol control unit 71, a rotating telescopic cable 72, and a charging interface 73. The input terminal of the first Buck control and PD protocol control unit 71 is connected to the DC output module 60, and the output terminal of the first Buck control and PD protocol control unit 71 is connected to the output charging via the rotating telescopic cable 72.

[0036] Specifically, refer to Figure 2 The charging port 73 can be a Type-C interface. The first Buck control and PD protocol control unit 71 is used to convert 22V low-voltage DC power into 65W PD fast charging energy and provide it to the hinge telescopic cable 72. The hinge telescopic cable 72 connects to devices such as laptops / tablets / mobile phones through its built-in Type-C interface and provides 65W PD fast charging for laptops / tablets / mobile phones.

[0037] refer to Figure 2 The first Buck control and PD protocol control unit 71 includes a first Buck control circuit 711 and a first PD protocol control circuit 712. The input terminal of the first Buck control circuit 711 is connected to the DC output module 60 to obtain a 22V low-voltage DC voltage. The CC pin of the charging interface 73 is connected to the CC pin of the first PD protocol control circuit 712. The output terminal of the first Buck control circuit 711 is connected to the charging interface 73. The CC pin of the charging interface 73 and the CC pin of the first PD protocol control circuit 712 handshake to request the charging voltage required by the charging interface 73. After the first PD protocol control circuit 712 obtains the charging voltage required by the charging interface 73, the first Buck control circuit 711 converts the 22V low-voltage DC voltage into the voltage required by the charging interface 73 and outputs it to the connected device.

[0038] The retractable hinge cable 72 eliminates the need for an additional data cable for charging, making it more convenient to use. Furthermore, the retractable hinge cable 72 can be extended and retracted to be stored in the multi-functional power strip when not in use, resulting in a neater appearance.

[0039] In one embodiment, reference Figure 1 and Figure 2 The second charging module 80 includes a second Buck control and PD protocol control unit 81, a first female connector 82 and a second female connector 83. The input terminal of the second Buck control and PD protocol control unit 81 is connected to the DC output module 60, and the output terminal of the Buck control and PD protocol control unit is connected to the first female connector 82 and the second female connector 83 respectively.

[0040] Specifically, refer to Figure 2The first female connector 82 can be a Type-C female connector, and the second female connector 83 can be a USB female connector. The second Buck control and PD protocol control unit 81 is used to convert 22V low-voltage DC power into 65W PD fast charging energy and SCP 22.5W fast charging energy, and provide them to the Type-C female connector and the USB female connector respectively, thereby providing fast charging function for connected laptops / tablets / mobile phones and other devices. The second Buck control and PD protocol control unit 81 has intelligent control function to realize intelligent output control of the Type-C female connector and the USB female connector. When only the Type-C female connector is outputting, it can output 65W PD fast charging energy. When only the USB female connector is outputting, it can output SCP 22.5W fast charging energy. When devices are plugged into the Type-C female connector and the USB female connector at the same time and are outputting power, both the Type-C female connector and the USB female connector reduce to the basic 5V output.

[0041] Among them, reference Figure 2 The second Buck control and PD protocol control unit 81 includes a second Buck control circuit 811 and a second PD protocol control circuit 812. The input terminal of the second Buck control circuit 811 is connected to the DC output module 60 to obtain a 22V low-voltage DC voltage. The CC pin of the Type-C female connector is connected to the CC pin of the second PD protocol control circuit 812, and the DP / DM pin of the USB female connector is connected to the DP / DM pin of the second PD protocol control circuit 812. The output terminal of the second Buck control circuit 811 is connected to the Type-C female connector and the USB female connector respectively. The CC / DP / DM pin of the Type-C female connector or the USB female connector hands with the CC / DP / DM pin of the second PD protocol control circuit 812 to request the required charging voltage. After the second PD protocol control circuit 812 obtains the required charging voltage from the Type-C female connector or the USB female connector, the second Buck control circuit 811 converts the 22V low-voltage DC voltage into the required charging voltage from the Type-C female connector or the USB female connector and outputs it to the connected device.

[0042] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A multi-functional power strip, characterized in that, include: The system comprises an AC power input terminal, an AC socket module, a rectifier and filter module, a flyback control module, a synchronous rectification control module, a DC output module, a first charging module, a second charging module, and a wireless charging module. The input terminals of the AC socket module and the rectifier and filter module are both connected to the AC power input terminal. The output terminal of the rectifier and filter module is connected to the input terminal of the flyback control module. The output terminal of the flyback control module is connected to the input terminal of the synchronous rectification control module. The output terminal of the synchronous rectification control module is connected to the DC output module. The DC output module is connected to the first charging module, the second charging module, and the wireless charging module. The wireless charging module includes a wireless charging Buck control and PD protocol control unit and a wireless charging control unit. The input terminal of the wireless charging Buck control and PD protocol control unit is connected to the DC output module, and the output terminal of the wireless charging Buck control and PD protocol control unit is connected to the wireless charging control unit, for charging external electronic devices.

2. The multi-functional power strip according to claim 1, characterized in that, The wireless charging Buck control and PD protocol control unit includes a wireless charging Buck control circuit and a third PD protocol control circuit. The input terminal of the wireless charging Buck control circuit is connected to the DC output module, the output terminal of the wireless charging Buck control circuit is connected to the wireless charging control unit, and the CC pin of the wireless charging control unit is connected to the CC pin of the third PD protocol control circuit.

3. The multi-functional power strip according to claim 1, characterized in that, The first charging module includes a first Buck control and PD protocol control unit, a swivel telescopic cable, and a charging interface. The input terminal of the first Buck control and PD protocol control unit is connected to the DC output module, and the output terminal of the first Buck control and PD protocol control unit is connected to the charging interface through the swivel telescopic cable.

4. The multifunctional power strip according to claim 3, characterized in that, The first Buck control and PD protocol control unit includes a first Buck control circuit and a first PD protocol control circuit. The input terminal of the first Buck control circuit is connected to the DC output module, the output terminal of the first Buck control circuit is connected to the charging interface, and the CC pin of the rotating shaft telescopic cable is connected to the CC pin of the first PD protocol control circuit.

5. The multi-functional power strip according to claim 1, characterized in that, The second charging module includes a second Buck control and PD protocol control unit, a first female connector and a second female connector. The input terminal of the second Buck control and PD protocol control unit is connected to the DC output module, and the output terminal of the Buck control and PD protocol control unit is connected to the first female connector and the second female connector, respectively.

6. The multi-functional power strip according to claim 5, characterized in that, The second Buck control and PD protocol control unit includes a second Buck control circuit and a second PD protocol control circuit. The input terminal of the second Buck control circuit is connected to the DC output module, and the output terminal of the second Buck control circuit is connected to the first female connector and the second female connector respectively. The CC pin of the first female connector is connected to the CC pin of the second PD protocol control circuit, and the DPDM pin of the second female connector is connected to the DPDM pin of the second PD protocol control circuit.

7. The multifunctional power strip according to claim 3, characterized in that, The charging interface is a Type-C interface.

8. The multi-functional power strip according to claim 5, characterized in that, The first female connector is a Type-C female connector.

9. The multi-functional power strip according to claim 5, characterized in that, The second female connector is a USB female connector.

10. The multifunctional power strip according to claim 1, characterized in that, It also includes an overload switch, which is disposed between the AC power input terminal and the AC socket module, and between the AC power input terminal and the rectifier filter module.

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