Multifunctional charging device supporting bidirectional blind plugging

Abstract

The invention provides a multifunctional charging device supporting bidirectional blind plugging. The multifunctional charging device comprises a plurality of bidirectional wired ports, a plurality of plugging detection units, a plurality of switch units, a voltage control unit, a wireless charging unit and a fast charging protocol control unit. Wherein each bidirectional wired port is electrically connected with the voltage control unit through a controlled end of the corresponding switch unit, a control end of the switch unit is electrically connected with the fast charging protocol control unit, and the fast charging protocol control unit is further electrically connected with the corresponding bidirectional wired port through the insertion detection unit. The voltage control unit is electrically connected with the fast charging protocol control unit and the wireless charging unit; the charging device can support a wired charging mode and a wireless charging mode as well as a bidirectional blind plugging function, and is compatible with various quick charging protocols and interface types, so that the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and in particular to a multifunctional charging device that supports bidirectional blind plugging. Background Art

[0002] With the continuous advancement of electronic technology, various mobile electronic products have emerged in an endless stream. In particular, with the maturity and popularization of wireless charging technology, charging methods and charging interfaces have become increasingly diverse. Therefore, technicians in this field have developed chargers that integrate wireless charging and wired charging functions so as to be compatible with both wired charging and wireless charging methods. These chargers are often equipped with a wired power input port, a wired power output port, and a wireless charging coil. However, since the appearance of the wired power input port and the output port are very similar, it is difficult for users to quickly distinguish between the wired power input port and the output port. During actual use, it is possible to connect the output port of an external power supply to the wired power output port of the charger, or to connect the input port of an electronic product to be charged to the wired power input port of the charger, which may cause damage to the external power supply, the charger, or the electronic product. Therefore, a multifunctional charging device that supports bidirectional blind plugging is needed. Users do not need to distinguish whether the wired port is input or output. The same port is automatically recognized as a wired power input port when connected to a power supply, and is automatically recognized as a wired power output port when connected to a power receiving terminal. Summary of the Invention

[0003] The embodiments of the present application provide a multifunctional charging device that supports bidirectional blind plugging to solve the problems existing in the above-mentioned prior art.

[0004] The embodiment of the present application provides a multifunctional charging device that supports bidirectional blind plugging, which includes: multiple bidirectional wired ports, multiple insertion detection units, multiple switch units, a voltage control unit, a wireless charging unit, and a fast charging protocol control unit;

[0005] Wherein, each of the bidirectional wired ports is electrically connected to the voltage control unit via a corresponding controlled end of the switch unit, the control end of the switch unit is electrically connected to the fast charging protocol control unit, the fast charging protocol control unit is also electrically connected to the corresponding bidirectional wired port via the insertion detection unit, and the voltage control unit is electrically connected to the fast charging protocol control unit and the wireless charging unit;

[0006] Among them, the fast charging protocol control unit detects the insertion status of the bidirectional wired port through the insertion detection unit, and outputs a control signal to the control end of the switch unit to control the connection and disconnection of the corresponding bidirectional wired port, and the voltage control unit is used to provide power for the fast charging protocol control unit and the wireless charging unit.

[0007] In some possible embodiments, the voltage control unit includes a voltage conversion circuit and a voltage step-down circuit.

[0008] In some possible embodiments, the wireless charging unit includes a plurality of wireless charging positions.

[0009] In some possible embodiments, the voltage control unit includes one or more of the following voltage conversion circuits: Buck, Boost, Buck-Boost, and LDO.

[0010] In some possible embodiments, the charging device further includes a plurality of wired power supply output interfaces, which are communicatively connected to the fast charging protocol control unit and electrically connected to the voltage control unit.

[0011] In some possible embodiments, the wired power output interface includes one or more of the following interfaces: USB, DC Out, Lightning, and MagSafe.

[0012] In some possible embodiments, the charging device further includes a data exchange unit, which is communicatively connected to the bidirectional wired port and electrically connected to the voltage control unit.

[0013] In some possible embodiments, the data exchange unit includes several data interfaces.

[0014] In some possible embodiments, the data exchange unit further includes a plurality of protocol conversion circuits, which are respectively communicatively connected to the bidirectional wired port and the corresponding data interface.

[0015] In some possible embodiments, the data interface includes one or more of the following interfaces: USB, SD-Card, MicroSD Card, HDMI, Lightning, and RJ45.

[0016] In some possible embodiments, the fast charging protocol control unit includes a microprocessor, a first communication port of the microprocessor is connected to the first data pin of the first bidirectional wired port through a first bus, and the second communication port of the microprocessor is connected to the second data pin of the second bidirectional wired port through a second bus; the first insertion detection unit includes a first resistor and a second resistor, the first resistor and the second resistor are connected in series between the first power pin and the ground of the first bidirectional wired port, and the common end of the first resistor and the second resistor is connected to the first voltage acquisition port of the microprocessor, and the second insertion detection unit includes a third resistor and a fourth resistor, the third resistor and the fourth resistor are connected in series between the second power pin and the ground of the second bidirectional wired port, and the common end of the third resistor and the fourth resistor is connected to the second voltage acquisition port of the microprocessor.

[0017] In some possible embodiments, the first switch unit includes a first transistor, a second transistor, a fifth resistor, a sixth resistor, and a seventh resistor, and the second switch unit includes a third transistor, a fourth transistor, an eighth resistor, a ninth resistor, and a tenth resistor; wherein the first transistor and the third transistor are enhancement-mode P-channel MOSFETs, and the second transistor and the fourth transistor are enhancement-mode N-channel MOSFETs; the gate of the first transistor is connected to the source of the second transistor through the sixth resistor, the drain of the first transistor is connected to the drain of the third transistor, and the source of the first transistor is connected to the first bidirectional wired terminal. The first power pin of the second bidirectional wired port is connected to the first power pin of the second bidirectional wired port, the source of the third transistor is connected to the second power pin of the second bidirectional wired port, the fifth resistor is connected between the gate and the drain of the first transistor, the eighth resistor is connected between the gate and the drain of the third transistor, the seventh resistor is connected between the gate and the ground of the second transistor, the drain of the second transistor is grounded, the tenth resistor is connected between the gate and the ground of the fourth transistor, the drain of the fourth transistor is grounded, the gate of the second transistor is connected to the first output port of the microprocessor, and the gate of the fourth transistor is connected to the second output port of the microprocessor.

[0018] It can be seen that the embodiment of the present application can provide a multifunctional charging device that supports bidirectional blind plugging. The fast charging protocol control unit detects the insertion status of the bidirectional wired port through the insertion detection unit, and outputs a control signal to the control end of the switch unit to control the connection and disconnection of the corresponding bidirectional wired port. The voltage control unit is used to provide power for the fast charging protocol control unit and the wireless charging unit, so that the charging device supports both wired and wireless charging methods while supporting the function of bidirectional blind plugging, and is compatible with various fast charging protocols and interface types, thereby facilitating user use and improving safety, avoiding the problem of circuit damage caused by incorrect insertion of input and output interfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a circuit structure diagram of a multifunctional charging device supporting bidirectional blind plugging provided in Example 1 of the present application;

[0021] Figure 2 This is a partial circuit diagram of a multifunctional charging device supporting bidirectional blind plugging provided in Example 1 of the present application;

[0022] Figure 3 yes Figure 1 Schematic diagram of the circuit structure of the voltage control unit in FIG.

[0023] Figure 4 This is a circuit structure diagram of a multifunctional charging device supporting bidirectional blind plugging provided in Example 2 of the present application;

[0024] Figure 5 This is a structural diagram of a multifunctional charging device supporting bidirectional blind plugging provided in Example 3 of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] Example 1

[0028] First, see Figure 1 , Figure 1 This is a circuit structure diagram of a multifunctional charging device supporting bidirectional blind plugging provided in Example 1 of the present application.

[0029] like Figure 1 As shown, the multifunctional charging device 100 supporting bidirectional blind plugging of an embodiment of the present application includes: a first bidirectional wired port 111, a second bidirectional wired port 112, a first insertion detection unit 131, a second insertion detection unit 132, a first switch unit 141, a second switch unit 142, a voltage control unit 150, a wireless charging unit 160 and a fast charging protocol control unit 120.

[0030] Among them, the first bidirectional wired port 111 is electrically connected to the voltage control unit 150 via the controlled end of the first switch unit 141, and the second bidirectional wired port 112 is electrically connected to the voltage control unit 150 via the controlled end of the second switch unit 142. The control end of the first switch unit 141 is electrically connected to the fast charging protocol control unit 120, and the control end of the second switch unit 142 is electrically connected to the fast charging protocol control unit 120. The fast charging protocol control unit 120 is also electrically connected to the first bidirectional wired port 111 via the first insertion detection unit 131, and the fast charging protocol control unit 120 is also electrically connected to the second bidirectional wired port 112 via the second insertion detection unit 132. The voltage control unit 150 is electrically connected to the fast charging protocol control unit 120 and the wireless charging unit 160.

[0031] The fast charging protocol control unit 120 detects the insertion status of the first bidirectional wired port 111 through the first insertion detection unit 131, and detects the insertion status of the second bidirectional wired port 112 through the second insertion detection unit 132. In addition, the fast charging protocol control unit 120 outputs a control signal to the control end of the first switch unit 141 to control the access and disconnection of the first bidirectional wired port 111. The fast charging protocol control unit 120 outputs a control signal to the control end of the second switch unit 142 to control the access and disconnection of the second bidirectional wired port 112. The voltage control unit 150 can provide power for the fast charging protocol control unit 120 and the wireless charging unit 160. The fast charging protocol control unit can be implemented by a single-chip microcomputer, a programmable logic device, etc. The first and second bidirectional wired ports can be interfaces such as USB-A and USB-C. It should be noted that although only the first and second bidirectional wired ports are shown in the figure, it is easy to know that those skilled in the art can configure three or more bidirectional wired ports and a corresponding number of switch units and insertion detection units as needed. The first and second insertion detection units can be implemented by diodes, transistors, pull-down resistors, pull-up resistors, etc. to identify the type of external device inserted into the first and second bidirectional wired ports as a power supply device or a device to be charged, and transmit the detection signal to the fast charging protocol control unit. The first and second switching units can be transistors, thyristors, field-effect transistors or relays. The voltage control unit can include one or more of the following voltage conversion circuits: Buck, Boost, Buck-Boost and LDO.

[0032] In some embodiments, the charging device 100 further includes a first wired power output interface 191 and a second wired power output interface 192, and the first wired power output interface 191 and the second wired power output interface 192 are communicatively connected to the fast charge protocol control unit 120 and electrically connected to the voltage control unit 150. The charging device 100 can supply power to the device to be charged through the first wired power output interface 191 and the second wired power output interface 192. In some possible embodiments, the first wired power output interface 191 and the second wired power output interface 192 can be one or more of the following interfaces: USB, DC Out, Lightning, and MagSafe.

[0033] Figure 2 This is a partial circuit diagram of a multifunctional charging device supporting bidirectional blind plugging provided in the first embodiment of the present application. Figure 2As shown, the fast charging protocol control unit 120 includes a microprocessor U1, and the first communication port of the microprocessor U1 is connected to the first data pin (for example, CC1 and CC2 pins) of the first bidirectional wired port 111 through the first bus 113. The second communication port of the microprocessor U1 is connected to the second data pin (for example, CC1 and CC2 pins) of the second bidirectional wired port 112 through the second bus 114. The microprocessor U1 can communicate with the connected power supply device and the device to be charged through the first bus 113 and the second bus 114 to negotiate the fast charging protocol, obtain the charging voltage, current, and power combination supported by the power supply device and the device to be charged, and select the charging voltage and charging current that are compatible with the power supply device and the device to be charged according to the obtained charging voltage, current, and power combination supported by the power supply device and the device to be charged, so that the power supply device and the charging device are charged at a safe charging voltage, thereby completing the negotiation of the fast charging protocol. The microprocessor can be implemented using various types of single-chip microcomputers.

[0034] The first insertion detection unit 131 includes a first resistor R1 and a second resistor R2, and the first resistor R1 and the second resistor R2 are connected in series between the first power pin (for example, the Vbus pin) and the ground of the first bidirectional wired port 111, and the common end of the first resistor R1 and the second resistor R2 is connected to the first voltage acquisition port of the microprocessor U1 (fast charge protocol control unit). The second insertion detection unit 132 includes a third resistor R3 and a fourth resistor R4, and the third resistor R3 and the fourth resistor R4 are connected in series between the second power pin (for example, the Vbus pin) and the ground of the second bidirectional wired port 112, and the common end of the third resistor R3 and the fourth resistor R4 is connected to the second voltage acquisition port of the microprocessor U1 (fast charge protocol control unit). When an external power supply device is connected to the first or second bidirectional wired port, the output voltage of the power supply device will generate a signal in the first or second insertion detection unit accordingly. For example, when a power supply device is connected to the first bidirectional wired port 111, the first power pin of the first bidirectional wired port 111 generates a high level, which will generate a high level at the common end of the first resistor R1 and the second resistor R2 of the first insertion detection unit 131. After the microprocessor U1 detects the high level at the first voltage acquisition port, it can be determined that a power supply device is connected to the first bidirectional wired port 111.

[0035] The first switch unit 141 includes a first transistor Q1, a second transistor Q2, a fifth resistor R5, a sixth resistor R6, and a seventh resistor R7. The second switch unit 142 includes a third transistor Q3, a fourth transistor Q4, an eighth resistor R8, a ninth resistor R9, and a tenth resistor R10. The first transistor Q1 and the third transistor Q3 are enhancement-mode P-channel MOSFETs, while the second transistor Q2 and the fourth transistor Q4 are enhancement-mode N-channel MOSFETs. The gate of the first transistor Q1 is connected to the source of the second transistor Q2 via a sixth resistor R6. The drain of the first transistor Q1 is connected to the drain of the third transistor Q3. The source of the first transistor Q1 is connected to the first power pin of the first bidirectional wired port 111, and the source of the third transistor Q3 is connected to the second power pin of the second bidirectional wired port 112. A fifth resistor R5 is connected between the gate and drain of the first transistor Q1. An eighth resistor R8 is connected between the gate and drain of the third transistor Q3. A seventh resistor R7 is connected between the gate of the second transistor Q2 and ground. The drain of the second transistor Q2 is grounded. A tenth resistor R10 is connected between the gate of the fourth transistor Q4 and ground. The drain of the fourth transistor Q4 is grounded. The gate of the second transistor Q2 is connected to the first output port of the microprocessor U1, and the gate of the fourth transistor Q4 is connected to the second output port of the microprocessor U1. In the initial state, the first transistor Q1 and the third transistor Q3 are in the cut-off state, so that the first switch unit 141 and the second switch unit 142 are in the closed state. When the microprocessor U1 (fast charging protocol control unit) detects that the corresponding bidirectional wired port is connected to the power supply device through the first insertion detection unit 131 or the second insertion detection unit 132, the microprocessor U1 outputs a control signal through the first output port or the second output port to control the first switch unit 141 or the second switch unit 142 to be turned on, so that the external device supplies power to the external device through the turned-on switch unit. For example, when the power supply device is connected to the first bidirectional wired port 111, the microprocessor U1 sends a control signal to the gate of the second transistor Q3 of the first switch unit 141 through the first output port, so that the second transistor Q2 is turned on. After the second transistor Q2 is turned on, the gate of the first transistor Q1 is grounded, so that the first transistor Q1 is turned on. It is easy to understand that in the initial state, the first switch unit and the second switch unit can be in the closed state, thereby effectively isolating the external devices connected to the first and second bidirectional wired ports, avoiding damage to the equipment due to voltage mismatch between the power supply equipment and the charging equipment.

[0036] Also refer to Figure 3 , Figure 3 yes Figure 1Schematic diagram of the circuit structure of the voltage control unit in the figure. As shown in the figure, the voltage control unit 1 includes a voltage conversion circuit 151 and a step-down circuit 152. The voltage conversion circuit 151 is electrically connected to the wireless charging unit 160, the first bidirectional wired port 111 or the second bidirectional wired port 112, and obtains electrical energy from the first bidirectional wired port 111 or the second bidirectional wired port 112, and converts it into a suitable voltage to charge the device to be charged connected to the charging device 100. For example, when the first bidirectional wired port 111 is connected to a power supply device (such as a charger), and the second bidirectional wired port 112 and the wireless charging unit 160 are connected to a smartphone, the voltage conversion circuit 151 obtains the electrical energy provided by the charger from the first bidirectional wired port 111 and converts it into a voltage suitable for charging the smartphone, thereby charging the smartphone. The voltage conversion circuit 151 may include various voltage conversion circuits, such as Buck, Boost, Buck-Boost and LDO. The step-down circuit 152 obtains electrical energy from the voltage conversion circuit 151 and converts it into a voltage suitable for powering the fast charging protocol control unit 120. The step-down circuit 152 may be a Buck circuit or an LDO circuit.

[0037] At the same time, the voltage conversion circuit 151 can also be electrically connected to the fast charging protocol control unit 120, and the fast charging protocol control unit 120 controls the output voltage of the voltage conversion circuit 151, thereby generating a corresponding output voltage according to the fast charging protocol supported by the device to be charged.

[0038] In this embodiment, the fast charging protocol control unit can detect whether an external electronic device is connected to the first or second bidirectional wired port through the first and second insertion detection units, and whether the connected external electronic device is a device to be charged or a power supply device, and then control the first or second switch unit to be turned on or off to select the corresponding external device as the power supply to supply power to the circuit. The user can arbitrarily insert the power supply device and the device to be charged into the first or second bidirectional wired port, and the charging device can simultaneously or separately supply power to the device to be charged connected to the first or second bidirectional wired port, the wireless charging unit, and the first and second wired power output interfaces. For example, the user can insert the power supply device into the first bidirectional wired port and simultaneously connect multiple devices to be charged to the wireless charging unit, the second bidirectional wired port, and the first and second wired power output interfaces, thereby charging multiple devices to be charged at the same time. The fast charging protocol control unit negotiates the input power with the power supply device and the output power with the output device through the fast charging protocol, so that when the power supply device and the device to be charged are arbitrarily inserted into the first and second bidirectional wired ports, the charging device can normally achieve the effects of fast charging and wireless charging, thereby supporting the functions of bidirectional blind plugging and fast charging while supporting wired and wireless charging.

[0039] Example 2

[0040] Figure 4 This is a circuit structure diagram of another multifunctional charging device supporting bidirectional blind plugging provided in Example 2 of the present application;

[0041] like Figure 4 As shown, the multifunctional charging device 200 supporting bidirectional blind plugging of an embodiment of the present application includes: a first bidirectional wired port 211, a second bidirectional wired port 212, a first insertion detection unit 231, a second insertion detection unit 232, a first switch unit 231, a second switch unit 232, a voltage control unit 250, a fast charging protocol control unit 220, a wireless charging unit 260 and a data exchange unit 270.

[0042] Among them, the first bidirectional wired port 211 is electrically connected to the voltage control unit 250 via the controlled end of the first switch unit 231, and the second bidirectional wired port 212 is electrically connected to the voltage control unit 250 via the controlled end of the second switch unit 232. The control end of the first switch unit 241 is electrically connected to the fast charging protocol control unit 220, and the control end of the second switch unit 242 is electrically connected to the fast charging protocol control unit 220. The fast charging protocol control unit 220 is also electrically connected to the first bidirectional wired port 211 via the first insertion detection unit 231, and the fast charging protocol control unit 220 is also electrically connected to the second bidirectional wired port 212 via the second insertion detection unit 232. The voltage control unit 250 is electrically connected to the fast charging protocol control unit 220 and the wireless charging unit 260 (not shown in the figure).

[0043] The fast charging protocol control unit 220 detects the insertion status of the first bidirectional wired port 211 through the first insertion detection unit 231, and detects the insertion status of the second bidirectional wired port 212 through the second insertion detection unit 232. In addition, the fast charging protocol control unit 220 outputs a control signal to the control end of the first switch unit 241 to control the access and disconnection of the first bidirectional wired port 211. The fast charging protocol control unit 220 outputs a control signal to the control end of the second switch unit 242 to control the access and disconnection of the second bidirectional wired port 212. The voltage control unit 250 can provide power for the fast charging protocol control unit 220 and the wireless charging unit 260. The first and second bidirectional wired ports can be USB-A, USB-C and other interfaces. It should be noted that although only the first and second bidirectional wired ports are shown in the figure, it is easy to know that those skilled in the art can configure three or more bidirectional wired ports and a corresponding number of switch units and insertion detection units as needed. The fast charging protocol control unit can be implemented by a single-chip microcomputer, a programmable logic device, etc. The first and second insertion detection units can be implemented by diodes, transistors, pull-down resistors, pull-up resistors, etc. to identify the type of external device inserted into the first and second bidirectional wired ports as a power supply device or a device to be charged, and transmit the detection signal to the fast charging protocol control unit. The first and second switching units can be transistors, thyristors, field-effect transistors or relays. The voltage control unit can include one or more of the following voltage conversion circuits: Buck, Boost, Buck-Boost and LDO.

[0044] In this embodiment, the fast charging protocol control unit can detect whether an external electronic device is connected to the first or second bidirectional wired port through the first and second insertion detection units, and whether the connected external electronic device is a device to be charged or a power supply device, and then control the first or second switch unit to be turned on or off to select the corresponding external device as the power supply to supply power to the circuit. The user can arbitrarily insert the power supply device and the device to be charged into the first or second bidirectional wired port, and the charging device can simultaneously or separately supply power to the device to be charged connected to the first or second bidirectional wired port, the wireless charging unit, and the first and second wired power output interfaces. For example, the user can insert the power supply device into the first bidirectional wired port and simultaneously connect multiple devices to be charged to the wireless charging unit, the second bidirectional wired port, and the first and second wired power output interfaces, thereby charging multiple devices to be charged at the same time. The fast charging protocol control unit negotiates the input power with the power supply device and the output power with the output device through the fast charging protocol, so that when the power supply device and the device to be charged are arbitrarily inserted into the first and second bidirectional wired ports, the charging device can normally achieve the effects of fast charging and wireless charging, thereby supporting the functions of bidirectional blind plugging and fast charging while supporting wired and wireless charging. In some possible embodiments, the data exchange unit 270 is communicatively connected to the first bidirectional wired port 211 and the second bidirectional wired port 212 , and is electrically connected to the voltage control unit 220 .

[0045] In some possible embodiments, the data exchange unit 270 includes a first data interface 281 and a second data interface 282. In some possible embodiments, the first data interface and the second data interface can be USB, SD-Card, MicroSDCard, HDMI, Lightning or RJ45, which are not limited here. The number of data interfaces is not limited to two, and can also be three or more. The data exchange unit can forward data between multiple data interfaces, thereby realizing data communication between different data interfaces. In some possible embodiments, the data exchange unit may also include a number of protocol conversion circuits, which are respectively connected to the bidirectional wired port and the corresponding data interface for communication, thereby realizing data conversion between different types of data interfaces.

[0046] In some embodiments, the charging device 200 further includes a first wired power output interface 291 and a second wired power output interface 292, which are communicatively connected to the fast charge protocol control unit 220 and electrically connected to the voltage control unit 250. The charging device 200 can supply power to the device to be charged through the first wired power output interface 291 and the second wired power output interface 292.

[0047] In some possible embodiments, the first wired power output interface 291 and the second wired power output interface 292 may be one or more of the following interfaces: USB, DC Out, Lightning, and MagSafe.

[0048] Example 3

[0049] Figure 5 This is a structural diagram of a multifunctional charging device supporting bidirectional blind plugging provided in Example 3 of the present application.

[0050] like Figure 5 As shown, the multifunctional charging device 300 supporting bidirectional blind plugging provided in this embodiment includes a housing 301, a first bidirectional wired port 311, a second bidirectional wired port 312, a first data interface 381, a second data interface 382, ​​a third data interface 383, a first wireless charging station 361, a second wireless charging station 362, and a third wireless charging station 363. The first bidirectional wired port 311, the second bidirectional wired port 312, the first data interface 381, the second data interface 382, ​​and the third data interface 383 are located on the side walls of the housing 301, while the first wireless charging station 361, the second wireless charging station 362, and the third wireless charging station 363 are located on the top of the housing 301. The first data interface 381 can be an SD Card interface, the second data interface 382 and the third data interface 383 can be USB interfaces, and the first bidirectional wired port 311 and the second bidirectional wired port 312 can be Type-C interfaces. Each wireless charging station can have an independent charging coil, allowing for simultaneous charging of multiple wireless charging devices. In some possible embodiments, the charging device further includes a plurality of wired power output interfaces, which are communicatively connected to the fast charge protocol control unit and electrically connected to the voltage control unit. In some possible embodiments, the wired power output interfaces include one or more of the following interfaces: USB, DC Out, Lightning, and MagSafe.

[0051] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or can be electrical, mechanical or other forms of connection.

[0052] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0053] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0054] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or partly contributed to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0055] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A multifunctional charging device supporting bidirectional blind plugging, characterized in that: It includes: Multiple bidirectional wired ports, multiple insertion detection units, multiple switch units, voltage control unit, wireless charging unit and fast charging protocol control unit; Wherein, each of the bidirectional wired ports is electrically connected to the voltage control unit via a corresponding controlled end of the switch unit, the control end of the switch unit is electrically connected to the fast charging protocol control unit, the fast charging protocol control unit is also electrically connected to the corresponding bidirectional wired port via the insertion detection unit, and the voltage control unit is electrically connected to the fast charging protocol control unit and the wireless charging unit; Among them, the fast charging protocol control unit detects the insertion status of the bidirectional wired port through the insertion detection unit, and outputs a control signal to the control end of the switch unit to control the connection and disconnection of the corresponding bidirectional wired port, and the voltage control unit is used to provide power for the fast charging protocol control unit and the wireless charging unit.

2. The multifunctional charging device supporting bidirectional blind plugging according to claim 1, characterized in that: The voltage control unit includes a voltage conversion circuit and a voltage step-down circuit.

3. The multifunctional charging device supporting bidirectional blind plugging according to claim 1, characterized in that: The wireless charging unit includes a plurality of wireless charging positions.

4. The multifunctional charging device supporting bidirectional blind plugging according to claim 1, characterized in that: The voltage control unit includes one or more of the following voltage conversion circuits: Buck, Boost, Buck-Boost and LDO.

5. The multifunctional charging device supporting bidirectional blind plugging according to claim 1, characterized in that: It also includes several wired power supply output interfaces, which are communicatively connected to the fast charging protocol control unit and electrically connected to the voltage control unit.

6. The multifunctional charging device supporting bidirectional blind plugging according to claim 1, characterized in that: The charging device further includes a data exchange unit, which is communicatively connected to the bidirectional wired port and electrically connected to the voltage control unit.

7. The multifunctional charging device supporting bidirectional blind plugging according to claim 6, characterized in that: The data exchange unit includes several data interfaces.

8. The multifunctional charging device supporting bidirectional blind plugging according to claim 6, characterized in that: The data exchange unit further comprises a plurality of protocol conversion circuits, which are respectively communicatively connected to the bidirectional wired ports and corresponding data interfaces.

9. The multifunctional charging device supporting bidirectional blind plugging according to any one of claims 1 to 8, characterized in that: The fast charging protocol control unit includes a microprocessor, a first communication port of the microprocessor is connected to the first data pin of the first bidirectional wired port through a first bus, and the second communication port of the microprocessor is connected to the second data pin of the second bidirectional wired port through a second bus; the first insertion detection unit includes a first resistor and a second resistor, the first resistor and the second resistor are connected in series between the first power pin and the ground of the first bidirectional wired port, and the common end of the first resistor and the second resistor is connected to the first voltage acquisition port of the microprocessor, and the second insertion detection unit includes a third resistor and a fourth resistor, the third resistor and the fourth resistor are connected in series between the second power pin and the ground of the second bidirectional wired port, and the common end of the third resistor and the fourth resistor is connected to the second voltage acquisition port of the microprocessor.

10. The multifunctional charging device supporting bidirectional blind plugging according to claim 9, characterized in that: The first switch unit includes a first transistor, a second transistor, a fifth resistor, a sixth resistor, and a seventh resistor, and the second switch unit includes a third transistor, a fourth transistor, an eighth resistor, a ninth resistor, and a tenth resistor; wherein the first transistor and the third transistor are enhancement-type P-channel MOSFETs, and the second transistor and the fourth transistor are enhancement-type N-channel MOSFETs; the gate of the first transistor is connected to the source of the second transistor through the sixth resistor, the drain of the first transistor is connected to the drain of the third transistor, and the source of the first transistor is connected to the first terminal of the first bidirectional wired port. The power pin is connected, the source of the third transistor is connected to the second power pin of the second bidirectional wired port, the fifth resistor is connected between the gate and the drain of the first transistor, the eighth resistor is connected between the gate and the drain of the third transistor, the seventh resistor is connected between the gate and the ground of the second transistor, the drain of the second transistor is grounded, the tenth resistor is connected between the gate and the ground of the fourth transistor, the drain of the fourth transistor is grounded, the gate of the second transistor is connected to the first output port of the microprocessor, and the gate of the fourth transistor is connected to the second output port of the microprocessor.

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