A dual charging mode charger

Abstract

The application discloses a dual charging mode charger, which comprises a charging wire, a mode switching circuit, a wireless charging module and a power supply module; the charging wire comprises a charging wire body and a charging wire outer end; the charging wire body comprises a positive wire and a negative wire; the mode switching circuit comprises a mode switching interface; the charger comprises two working modes; in the first working mode, the charging wire outer end is electrically connected with a device to be charged, the mode switching circuit connects the power supply module and the charging wire, and disconnects the wireless charging module and the inner end of the positive wire, so that the device to be charged is charged in a wired mode; in the second working mode, the charging wire outer end is electrically connected with the mode switching interface, the mode switching circuit disconnects the power supply module and the charging wire, and connects the wireless charging module and the inner end of the positive wire, the outer end of the positive wire is connected with the wireless charging module through the mode switching interface, the positive wire is wound into a coil, and the device to be charged is charged in a wireless mode. The embodiment of the application enhances the functionality and convenience of the charger.

Description

Technical Field

[0001] This invention relates to the field of electronic device technology, and in particular to a charger with dual charging modes. Background Technology

[0002] With social progress and technological development, mobile phones and other electronic products are being used more and more frequently in people's daily lives, and these electronic products inevitably face the problem of needing to be charged during use.

[0003] Currently, most electronic products use either wired or wireless charging. Wired charging involves a power cord and adapter, which raises concerns about portability. Furthermore, users need to use two different chargers for wired or wireless charging, which also adds to the inconvenience of daily use. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a charger with dual charging modes, which has two different operating modes, enhancing the functionality and convenience of the charger.

[0005] In a first aspect, embodiments of the present invention provide a charger with dual charging modes, including a charging cable, a mode switching circuit, a wireless charging module, and a power supply module;

[0006] The charging cable includes a charging cable body and an outer end of the charging cable; the charging cable body includes a positive wire and a negative wire; the positive wire includes an inner end of the positive wire and an outer end of the positive wire.

[0007] The mode switching circuit includes a mode switching interface;

[0008] The charger includes a first operating mode and a second operating mode;

[0009] In the first working mode, the outer end of the charging cable is electrically connected to the device to be charged, the mode switching circuit connects the power supply module and the charging cable, and disconnects the inner end of the wireless charging module and the positive wire, and the power supply module performs wired charging for the device to be charged through the charging cable.

[0010] In the second working mode, the outer end of the charging cable is electrically connected to the mode switching interface. The mode switching circuit disconnects the power supply module and the charging cable, and connects the inner end of the wireless charging module and the positive wire. The outer end of the positive wire is connected to the wireless charging module through the mode switching interface. The positive wire is wound into a coil, and the wireless charging module wirelessly charges the device to be charged through the coil.

[0011] Optionally, the mode switching circuit includes a first switch control unit and a second switch control unit;

[0012] In the first working mode, the first switch control unit is turned on, the second switch control unit is turned off, the negative wire is electrically connected to the power supply module, the positive wire is electrically connected to the power supply module through the first switch control unit, and the power supply module performs wired charging for the device to be charged through the first switch control unit.

[0013] In the second operating mode, the first switch control unit is disconnected, the second switch control unit is turned on, the positive line is electrically connected to the wireless charging module through the second switch control unit, and the wireless charging module wirelessly charges the device to be charged through the second switch control unit.

[0014] Optionally, the first switch control unit includes a first switch element, a second switch element, and a third switch element;

[0015] The first switching element includes a first input terminal, a first output terminal, and a first control terminal; the second switching element includes a second input terminal, a second output terminal, and a second control terminal; and the third switching element includes a third input terminal, a third output terminal, and a third control terminal.

[0016] The mode switching circuit also includes a first control branch and a grounding branch;

[0017] The first control terminal is electrically connected to the first control branch, and the first control branch is electrically connected to the positive output terminal of the power supply module; the first input terminal is grounded, and the first output terminal is electrically connected to the second control terminal and the third control terminal respectively; the second input terminal, the second output terminal, the third input terminal, and the third output terminal are connected in series between the positive line and the positive output terminal of the power supply module.

[0018] The grounding branch is connected in series between the first control branch and the negative port of the mode switching interface.

[0019] Optionally, the first switching element includes an N-type transistor, and the second and third switching elements include P-type transistors;

[0020] The input terminal of the first control branch is electrically connected to the second input terminal, and the output terminal of the first control branch is electrically connected to the first control terminal; the output terminal of the first control branch is configured to control the second switch control unit to turn on or off.

[0021] Optionally, the second switch control unit includes a fourth switch element and a relay;

[0022] The fourth switching element includes a fourth input terminal, a fourth output terminal, and a fourth control terminal; the relay includes a relay power supply terminal and a normally open contact.

[0023] The mode switching circuit also includes a second control branch;

[0024] The fourth control terminal is electrically connected to the second control branch, the second control branch is electrically connected to the output terminal of the first control branch, the fourth input terminal is electrically connected to the first input signal, the fourth output terminal is electrically connected to the relay power supply terminal, and the normally open contact is connected in series between the inner end of the positive line and the wireless charging module.

[0025] The output of the first control branch is connected to the second control branch to control the second switch control unit to turn on or off.

[0026] Optionally, the fourth switching element includes a P-type transistor, and in the second operating mode, the voltage difference between the input signal of the second control branch and the first input signal is less than the threshold voltage of the fourth switching element.

[0027] Optionally, the wireless charging module, the power supply module, and the mode switching circuit are integrated on a single main control circuit board.

[0028] Optionally, the charger further includes a charging cable storage box, through which the charging cable is electrically connected to the power output terminal of the main control circuit board;

[0029] The charging cable storage box also includes a winding device;

[0030] In the first working mode, the charging cable rotates and extends out of the charging cable storage box together with the winding device;

[0031] In the second working mode, the charging cable rotates together with the winding device and is stored back in the charging cable storage box.

[0032] Optionally, the charger also includes a charger housing;

[0033] The outer casing includes an upper outer casing and a lower outer casing;

[0034] The wireless charging module, the mode switching circuit, and the power supply module are located inside the charger housing, on the side of the charging cable storage box near the lower housing.

[0035] The mode switching interface is located at the edge of the lower outer shell.

[0036] Optionally, the charger may also include an adapter;

[0037] The adapter is housed inside the outer casing and located on the side of the storage box. The adapter is electrically connected to the power supply module, and the power supply module is electrically connected to the wireless charging module.

[0038] This invention provides a charger with dual charging modes, including a first operating mode and a second operating mode. In the first operating mode, the outer end of the charging cable is electrically connected to the device to be charged. A mode switching circuit controls the power supply module and the charging cable to be connected, and controls the wireless charging module and the inner end of the positive wire to be disconnected. The power supply module provides wired charging to the device through the charging cable. In the second operating mode, the outer end of the charging cable is electrically connected to a mode switching interface. The mode switching circuit controls the power supply module and the charging cable to be disconnected, and controls the wireless charging module and the inner end of the positive wire to be connected. The outer end of the positive wire is connected to the wireless charging module through the mode switching interface, and the positive wire is wound into a coil. The wireless charging module provides wireless charging to the device through the coil. This dual-charging-mode charger achieves two different charging operating modes, enhancing the charger's functionality and convenience. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of exemplary embodiments of the present invention, the accompanying drawings used in describing the embodiments are briefly introduced below. Obviously, the accompanying drawings described are only a portion of the drawings of the embodiments to be described in this invention, and not all of the drawings. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0040] Figure 1 A schematic diagram illustrating the working principle of a charger provided in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram illustrating the working principle of another charger provided in an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the structure of a charger provided in an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of another charger provided in an embodiment of the present invention;

[0044] Figure label:

[0045] 10: Charging; 20: Device to be charged;

[0046] 100: Charging cable; 120: Charging cable body; 110: Outer end of charging cable; 121: Positive wire; 122: Negative wire; 130A: Inner end of positive wire; 130B: Outer end of positive wire;

[0047] 200: Mode switching circuit; 210: Mode switching interface; 221: First switch control unit; 221A: First switch element; 221A1: First input terminal; 221A2: First output terminal; 221A3: First control terminal; 221B: Second switch element; 221B1: Second input terminal; 221B2: Second output terminal; 221B3: Second control terminal; 221C: Third switch element; 221C1: Third input terminal; 221C2: Third output terminal; 221C3: Third control terminal ; 230: First control branch; 230A: Input terminal of the first control branch; 230B: Output terminal of the first control branch; 222: Second switch control unit; 222A: Fourth switch element; 222A1: Fourth input terminal; 222A2: Fourth output terminal; 222A3: Fourth control terminal; 223: Relay; 223A1: Relay power supply terminal; 223A2: Normally open contact; 240: Second control branch; 250: Grounding branch; 210B: Negative terminal; 260: First input signal;

[0048] 300: Power supply module; 300A: Positive output terminal;

[0049] 400: Wireless charging module;

[0050] 500: Appliance storage box;

[0051] 600: Charger casing; 610: Upper casing; 620: Lower casing;

[0052] 700: Main control circuit board. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be fully described below with reference to the accompanying drawings in the embodiments of this invention, through specific implementation methods. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort fall within the protection scope of this invention.

[0054] Figure 1 This is a schematic diagram illustrating the working principle of a charger according to an embodiment of the present invention. Figure 2 This is a schematic diagram illustrating the working principle of another charger provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of a charger provided in an embodiment of the present invention, with reference to... Figures 1 to 3As shown, the dual-charging-mode charger 10 provided in this embodiment of the invention includes a charging cable 100, a mode switching circuit 200, a wireless charging module 400, and a power supply module 300. The charging cable 100 includes a charging cable body 120 and an outer charging cable end 110. The charging cable body 120 includes a positive wire 121 and a negative wire 122. The positive wire 121 includes an inner positive wire 130A and an outer positive wire 130B. The mode switching circuit 200 includes a mode switching interface 210. The charger 10 includes a first working mode and a second working mode. In the first working mode, the outer charging cable end 110 is electrically connected to the device to be charged 20, and the mode switching circuit 200 is connected to the power supply module 300. In the first working mode, the power supply module 300 and the charging cable 100 are connected, and the wireless charging module 400 and the inner end 130A of the positive wire are disconnected. The power supply module 300 performs wired charging for the device 20 to be charged through the charging cable 100. In the second working mode, the outer end 110 of the charging cable is electrically connected to the mode switching interface 210. The mode switching circuit 200 disconnects the power supply module 300 and the charging cable 100, and connects the wireless charging module 400 and the inner end 130A of the positive wire. The outer end 130B of the positive wire is connected to the wireless charging module 400 through the mode switching interface 210. The positive wire 121 is wound into a coil, and the wireless charging module 400 performs wireless charging for the device 20 to be charged through the coil.

[0055] In other words, in the first working mode, the outer end 110 of the charging cable is electrically connected to the device 20 to be charged. The mode switching circuit 200 controls the power supply module 300 to connect with the positive wire 121 and the negative wire 122, and controls the wireless charging module 400 to disconnect from the inner end 130A of the positive wire. The power supply module 300 provides wired charging for the device 20 to be charged through the charging cable 100. In the second working mode, the outer end 110 of the charging cable is electrically connected to the mode switching interface 210. The mode switching circuit 200 controls the power supply module 300 to disconnect from the positive wire 121 and the negative wire 122, and controls the wireless charging module 400 to connect with the inner end 130A of the positive wire, while the negative wire 122 is grounded. The outer end 130B of the positive wire is connected to the wireless charging module 400 through the mode switching interface 210, and the positive wire 121 forms a coil. The wireless charging module 400 provides wireless charging for the device 20 to be charged through the coil.

[0056] The charger 10 includes two operating modes: a first operating mode and a second operating mode. These two modes ensure the functionality and convenience of the charger 10. Specifically, the charger 10 includes a charging cable 100, a mode switching circuit 200, a wireless charging module 400, and a power supply module 300. The mode switching circuit 200 controls the connection between the charging cable 100, the wireless charging module 400, and the power supply module 300, thereby adjusting the charger 10 to the two operating modes to charge the device 20. For example, the device 20 to be charged can be a mobile phone, computer, or tablet computer, etc. This embodiment of the invention does not impose specific limitations.

[0057] Specifically, the charging cable 100 includes a charging cable body 120 and a charging cable outer end 110. In the first working mode, the charging cable body 120 is used to transmit electrical energy, and the charging cable outer end 110 is directly electrically connected to the device 20 to be charged. In the first working mode, the mode switching circuit 200 controls the power supply module 300 and the charging cable 100 to be connected, and the power supply module 300 can provide wired charging for the device 20 to be charged through the charging cable 100. In the second working mode, the charging cable outer end 110 is electrically connected to the mode switching interface 210. The charging cable 100, the wireless charging module 400, and the mode switching circuit 200 in the charger 10 form a coil, which can provide wireless charging for the device 20 to be charged.

[0058] For example, refer to Figure 1 As shown, the charger 10 performs wired charging in the first operating mode. The outer end 110 of the charging cable is electrically connected to the device 20 to be charged. The mode switching circuit 300 controls the power supply module 300 and the charging cable 100 to be connected. The charging cable body 120 includes a positive wire 121 and a negative wire 122. Through the conduction of the positive wire 121 and the negative wire 122, the power supply module 300 performs wired charging for the device 20 to be charged through the charging cable 100. In the first operating mode, the mode switching circuit 200 controls the wireless charging module 400 to be disconnected from the inner end 130A of the positive wire, and the wireless charging module 400 does not wirelessly charge the device 20 to be charged through the positive wire 121.

[0059] For example, refer to Figure 2As shown, the charger 10 performs wireless charging in the second operating mode. The outer end 110 of the charging cable is electrically connected to the mode switching interface 210. The mode switching circuit 200 controls the wireless charging module 400 and the inner end 130A of the positive wire to be connected. That is, the positive wire 121 forms a coil through the outer end 130B of the positive wire, the mode switching module 200, and the wireless charging module 400. The negative wire 122 is grounded. The wireless charging module 400 wirelessly charges the device 20 to be charged through the coil. For example, the wireless charging module 400 can be powered by its own power supply or electrically connected to the power supply module 300 to provide power to the device 20 to be charged. In the second operating mode, the mode switching circuit 300 controls the power supply module 300 to disconnect from the charging cable 100, and the power supply module 300 does not perform wired charging of the device 20 to be charged through the charging cable 100.

[0060] In summary, the charger with dual charging modes provided by this invention has the following characteristics: In the first operating mode, the outer end of the charging cable is electrically connected to the device to be charged. The mode switching circuit controls the power supply module and the charging cable to be connected, and controls the wireless charging module and the inner end of the positive wire to be disconnected. The power supply module provides wired charging for the device to be charged through the charging cable. In the second operating mode, the outer end of the charging cable is electrically connected to the mode switching interface. The mode switching circuit controls the power supply module and the charging cable to be disconnected, and controls the wireless charging module and the inner end of the positive wire to be connected. The outer end of the positive wire is connected to the wireless charging module through the mode switching interface, and the positive wire is wound into a coil. The wireless charging module provides wireless charging for the device to be charged through the coil. This dual-charging-mode charger achieves two different charging operating modes, enhancing the functionality and convenience of the charger.

[0061] Continue to refer to Figure 1 and Figure 2 As shown, the mode switching circuit 200 includes a first switch control unit 221 and a second switch control unit 222. In the first working mode, the first switch control unit 221 is turned on, the second switch control unit 222 is turned off, the negative wire 122 is electrically connected to the power supply module 300, and the positive wire 121 is electrically connected to the power supply module 300 through the first switch control unit 221. The power supply module 300 performs wired charging for the device 20 to be charged through the first switch control unit 221. In the second working mode, the first switch control unit 221 is turned off, the second switch control unit 222 is turned on, the positive wire 121 is electrically connected to the wireless charging module 400 through the second switch control unit 222, and the wireless charging module 400 performs wireless charging for the device 20 to be charged through the second switch control unit 222.

[0062] When the charging cable end 110 is electrically connected to the device to be charged 20, or when the charging cable end 110 is electrically connected to the mode switching interface 210, the mode switching circuit 220 controls the first switch control unit 221 or the second switch control unit 222 to turn on or off, thereby realizing the conversion and adjustment of the two working modes.

[0063] Specifically, such as Figure 1 As shown, in the first working mode, the mode switching circuit 220 controls the first switch control unit 221 to be turned on. The power supply module 300 can be electrically connected to the device to be charged 20 through the positive wire 121, while the negative wire 122 is electrically connected to both the power supply module 300 and the device to be charged 20. The power supply module 300 performs wired charging for the device to be charged 20 through the charging cable 100. Furthermore, in the first working mode, the mode switching circuit 220 controls the second switch control unit 222 to be turned off, the wireless charging module 400 is not connected to the positive wire 121, and the second working mode, i.e., the wireless charging mode, does not operate.

[0064] For details, please refer to Figure 2 As shown, in the second operating mode, the outer end 110 of the charging cable is electrically connected to the mode switching interface 210, that is, the positive wire 121 is electrically connected to the mode switching interface 210 through its outer end 130B. Furthermore, the mode switching circuit 220 controls the second switch control unit 222 to conduct, and the positive wire 121 is electrically connected to the wireless charging module 400. The outer end 130B of the positive wire is connected to the wireless charging module 400 through the mode switching interface 210, and the positive wire 121 forms a coil, realizing wireless charging in the second operating mode. That is, the second switch control unit 222 controls the positive wire 121 to be electrically connected to the wireless charging module 400, and the wireless charging module 400 wirelessly charges the device 20 to be charged.

[0065] Continue to refer to Figure 1 and Figure 2As shown, the first switch control unit 221 includes a first switch element 221A, a second switch element 221B, and a third switch element 221C; the first switch element 221A includes a first input terminal 221A1, a first output terminal 221A2, and a first control terminal 221A3; the second switch element 221B includes a second input terminal 221B1, a second output terminal 221B2, and a second control terminal 221B3; the third switch element 221C includes a third input terminal 221C1, a third output terminal 221C2, and a third control terminal 221C3; the mode switching circuit 200 also includes a first control branch 230 and a ground branch 250; the first control... Terminal 221A3 is electrically connected to the first control branch 230, and the first control branch 230 is electrically connected to the positive output terminal 300A of the power supply module 300; the first input terminal 221A1 is grounded, and the first output terminal 221A2 is electrically connected to the second control terminal 221B3 and the third control terminal 221C3 respectively; the second input terminal 221B1, the second output terminal 221B2, the third input terminal 221C1 and the third output terminal 221C2 are connected in series between the positive line 121 and the positive output terminal 300A of the power supply module 300; the grounding branch 250 is connected in series between the first control branch 230 and the negative port 210B of the mode switching interface 210.

[0066] In other words, the positive output terminal 300A of the power supply module 300 is electrically connected to the first control terminal 221A3 based on the first control branch 230, the first input terminal 221A1 is grounded, the first output terminal 221A2 is electrically connected to the second control terminal 221B3 and the third control terminal 221C3 respectively, and the second input terminal 221B1, the second output terminal 221B2, the third input terminal 221C1 and the third output terminal 221C2 are connected in series between the positive output terminal 121A and the positive line 121.

[0067] The first switch control unit 221 includes a first switch element 221A, a second switch element 221B, and a third switch element 221C. The first switch element 221A is disposed on the first control branch 230, and the second switch element 221B and the third switch element 221C are disposed between the power supply module 300 and the positive line 121. By controlling the on and off states of the first switch element 221A, the second switch element 221B, and the third switch element 221C, the connection and disconnection between the positive line 121 and the power supply module 300 are ensured, thereby realizing the switching between two operating modes.

[0068] Specifically, the first control branch 230 is electrically connected to the first control terminal 221A3. Voltage divider resistors R1 and R2 are also provided on the first control branch 230. This embodiment of the invention does not specifically limit the voltage divider devices in the entire circuit. When the first control terminal 221A3 of the first switching element 221A is turned on, the first output terminal 221A2 controls the second switching element 221B and the third switching element 221C, which are connected in series, to be turned on, ensuring the connection between the positive line 121 and the power supply module 300, thus realizing the first operating mode. Similarly, when the first control terminal 221A3 of the first switching element 221A is turned off, the first output terminal 221A2 controls the second switching element 221B and the third switching element 221C, which are connected in series, to be turned off, ensuring the disconnection between the positive line 121 and the power supply module 300, and preventing charging of the device 20 in the first operating mode.

[0069] Furthermore, in the first operating mode, the first switching element 221A, the second switching element 221B, and the third switching element 221C are all turned on, and the positive line 121 is electrically connected to the power supply module 300. In the second operating mode, the first switching element 221A, the second switching element 221B, and the third switching element 221C are all turned off, and the positive line 121 is disconnected from the power supply module 300.

[0070] Further reference Figure 1 and Figure 2 As shown, a unidirectional diode D is also provided on the grounding branch 250. By adding a unidirectional diode D, the unidirectional flow of current can be limited, making the direction of the induced magnetic field generated on the grounding branch 250 constant, thus ensuring that the dual-charging mode charger 10 can stably perform wireless charging in the second working mode. At the same time, a capacitor C is also added to the grounding terminal of the grounding branch 250 to ensure the stable operation of the dual-charging mode charger 10. Exemplarily, related devices can be adaptively added to the drawings provided in this invention to ensure the stable operation of the dual-charging mode charger 10; this embodiment of the invention does not impose specific limitations on this.

[0071] Optional, continue to refer to Figure 1 and Figure 2 As shown, the first switching element 221A includes an N-type transistor, and the second switching element 221B and the third switching element 221C include P-type transistors; the input terminal 230A of the first control branch is electrically connected to the second input terminal 221B1, and the output terminal 230B of the first control branch is electrically connected to the first control terminal 221A3. The output terminal 230B of the first control branch is configured to control the second switch control unit 222 to be turned on or off.

[0072] Specifically, in the first switch control unit 221, the first switch element 221A includes an N-type transistor, and the second switch element 221B and the third switch element 221C include P-type transistors. An N-type transistor is a transistor that conducts when the voltage between its gate and source is greater than a threshold voltage. A P-type transistor is a transistor that conducts when the voltage between its gate and source is less than a threshold voltage. By placing N-type and P-type transistors between the first control branch 230 and the positive line 121 and the power supply module 300, the accuracy of the charger 10's operating mode switching is ensured.

[0073] Specifically, in the first operating mode, the outer end 110 of the charging cable is electrically connected to the device to be charged 20, and the mode switching circuit 300 controls the power supply module 300 and the charging cable 100 to be connected. Specifically, the first control terminal 221A3 of the first switching element 221A is electrically connected to the output terminal 230B of the first control branch, and obtains the voltage after voltage division by the first control branch 230. At this time, the voltage between the gate and the source is greater than the threshold voltage, and the first switching element 221A is turned on. The first switching element 221A is turned on, and through its first output terminal 221A2, it controls the voltage between the gate and the source of the second switching element 221B and the third switching element 221C to be less than the threshold voltage, that is, the second switching element 221B and the third switching element 221C are turned on. The output terminal 230B of the first control branch is electrically connected to the first control terminal 221A3 to realize the connection between the power supply module 300 and the positive line 121, ensuring the operation of the first working mode. At the same time, the output terminal 230B of the first control branch is also used to control the conduction or cutoff of the second switch control unit 222 to realize the switching of the second working mode. That is, when the first working mode is working, the second working mode is automatically cut off to avoid mutual interference between the two working modes. Moreover, the two working modes are automatically switched through a set of circuits without the need for additional control circuits.

[0074] Continue to refer to Figure 1 and Figure 2As shown, the second switch control unit 222 includes a fourth switch element 222A and a relay 223; the fourth switch element 222A includes a fourth input terminal 222A1, a fourth output terminal 222A2 and a fourth control terminal 222A3, and the relay 223 includes a relay power supply terminal 223A1 and a normally open contact 223A2; the mode switching circuit 200 also includes a second control branch 240; the fourth control terminal 222A3 is electrically connected to the second control branch 240, the second control branch 240 is electrically connected to the output terminal 230B of the first control branch, the fourth input terminal 222A1 is electrically connected to the first input signal 260, the fourth output terminal 222A2 is electrically connected to the relay power supply terminal 223A1, and the normally open contact 223A2 is connected in series between the inner end 130A of the positive line and the wireless charging module 400; the output terminal 230B of the first control branch is connected to the second control branch 240 to control the second switch control unit 222 to turn on or off.

[0075] In other words, the output terminal 230B of the first control branch is electrically connected to the negative port 210B of the mode switching interface 210 via the grounding branch 250; and the output terminal 230B of the first control branch is electrically connected to the second control branch 240, ensuring the switching between the two charging modes of the charger 10 with dual charging modes. Specifically, the fourth control terminal 222A3 is electrically connected to the second control branch 240, the fourth input terminal 222A1 is electrically connected to the first input signal 260, the fourth output terminal 222A2 is electrically connected to the relay power supply terminal 223A1, and the normally open contact 223A2 is connected in series between the positive line 121 and the wireless charging module 400; in the first working mode, the fourth switching element 222A is turned off, and the normally open contact 223A2 is opened; in the second working mode, the fourth switching element 222A is turned on, and the normally open contact 223A2 is closed.

[0076] The second switch control unit 222 includes a fourth switch element 222A and a relay 223. The fourth switch element 222A is disposed on the second control branch 240, and the relay 223 is disposed between the positive line 121 and the wireless charging module 400. By controlling the fourth switch element 222A to conduct, the relay 223 is activated, ensuring that the positive line 121 and the wireless charging module 400 are connected, thus achieving the second operating mode. By controlling the fourth switch element 222A to deactivate, the relay 223 is deactivated, ensuring that the positive line 121 and the wireless charging module 400 are disconnected, thus achieving the switching to the first operating mode.

[0077] Specifically, the second control branch 240 is electrically connected to the fourth control terminal 222A3. When the fourth control terminal 222A3 of the fourth switching element 222A is turned on, it controls whether the fourth switching element 222A is turned on, in conjunction with the first input signal 260 connected to the fourth input terminal 222A1. That is, when the voltage signal obtained by the fourth input terminal 222A1 is greater than the voltage signal obtained by the fourth control terminal 222A3, the fourth switching element 222A is turned on, and the fourth output terminal 222A2 controls the relay 223 to be powered on through the relay power supply terminal 223A1. The normally open contact 223A2 closes to realize the connection between the positive line 121 and the wireless charging module 400. When the voltage signal acquired by the fourth input terminal 221A1 is less than the voltage signal acquired by the fourth control terminal 222A3, the fourth switching element 222A is turned off, and the fourth output terminal 222A2 does not send an electrical signal to cause the relay 223 to be powered down. The normally open contact 223A2 is opened, thus disconnecting the positive line 121 from the wireless charging module 400.

[0078] Furthermore, in the second operating mode, the fourth switching element 222A is turned on, the relay 223 is energized, and the normally open contact 223A2 is closed. The positive line 121 is electrically connected to the wireless charging module 400, and the negative line 122 is electrically connected to the negative port 210B. The negative line 122 is grounded, and the charger 10 performs wireless charging in the second operating mode. In the first operating mode, the fourth switching element 222A is turned off, the relay 223 is de-energized, and the normally open contact 223A2 is open. The positive line 121 and the wireless charging module 400 are not connected, and the charger 10 performs wired charging in the first operating mode.

[0079] Furthermore, a resistor R can be added between the grounding terminal connected to the first input signal 260 and the grounding terminal connected to the fourth output terminal 222A to avoid dangerous situations such as short circuits. This embodiment of the invention does not impose specific limitations on this aspect.

[0080] Optional, continue to refer to Figure 1 and Figure 2 As shown, the fourth switching element 222A includes a P-type transistor. In the second operating mode, the voltage difference between the input signal of the second control branch 240 and the first input signal 260 is less than the threshold voltage of the fourth switching element 222A.

[0081] The fourth switching element 222A in the second switch control unit 222 includes a P-type transistor, which is a transistor that conducts when the voltage between its gate and source is less than a threshold voltage. Specifically, the fourth control terminal 222A3 is electrically connected to the output terminal 230B of the first control branch, and the fourth control terminal 222A3 acquires the input signal output from the output terminal 230B of the first control branch. The fourth input terminal 222A1 is electrically connected to the first input signal 260, and the fourth input terminal 222A1 acquires the voltage provided by the first input signal 260. In the second operating mode, the voltage difference between the input signal of the second control branch 240 and the first input signal 260 is less than the threshold voltage of the fourth switching element 222A, and the fourth switching element 222A conducts. The fourth output terminal 222A2 is electrically connected to the relay power supply terminal 223A1, controlling the relay 223 to power on, closing the normally open contact 223A2, connecting the positive line 121 and the wireless charging module 400, and completing the wireless charging in the second operating mode. In this way, the voltage output by the power supply module goes directly to ground through the mode switching interface, preventing the first switching element from conducting and thus cutting off the output channel of the power supply module. Since the fourth control terminal 222A3 receives the input signal from the output terminal 230B of the first control branch, the fourth switching element 222A conducts, the relay is energized, and the normally open terminal closes, thus closing both ends of the wireless charging channel. This, combined with the mode switching interface, forms a closed loop for the wireless charging coil. This achieves the function of automatically switching on the second working mode when the first working mode is disconnected and the charging cable's outer end 110 is electrically connected to the mode switching interface 210. Specifically, in the second working mode, the charging cable's outer end 110 is electrically connected to the mode switching interface 210, and the mode switching circuit 300 controls the wireless charging module 400 and the positive line 121 to conduct. At this time, the negative line 122 is grounded through an electrical connection to the negative port 210B. By controlling the conduction of the fourth switching element 222A, the relay 223 is powered on to ensure the connection between the positive line 121 and the wireless charging module 400, so that the positive line 121 forms a coil to wirelessly charge the device 20 to be charged.

[0082] Figure 4 This is a schematic diagram of another charger provided in an embodiment of the present invention, with reference to... Figure 3 and Figure 4 As shown, the wireless charging module 400, the mode switching circuit 200, and the power supply module 300 are integrated on a main control circuit board 700.

[0083] The charger 10 may also include a main control circuit board 700, on which a wireless charging module 400, a mode switching circuit 200, and a power supply module 300 can be integrated. Integrating multiple functional modules on the main control circuit board 700 can save space in the charger 10, ensuring that the charger 10 is small in size, and making it easy to change the electrical connection relationship between them to achieve two different working modes.

[0084] Continue to refer to Figure 3 and Figure 4 As shown, the charger 10 also includes a charging cable storage box 500, through which the charging cable 100 is electrically connected to the power output terminal of the main control circuit board 700; the charging cable storage box 500 also includes a winding device (not shown in the figure); in the first working mode, the charging cable 100 rotates and extends out of the charging cable storage box 500 together with the winding device; in the second working mode, the charging cable 100 rotates and is stored back in the charging cable storage box 500 together with the winding device.

[0085] The charger 10 also includes a charging cable storage box 500, which stores the charging cable 100. The charging cable storage box 500 has two states in two different operating modes. Specifically, in the first operating mode, the charging cable 100 extends out of the charging cable storage box 500 by rotating with the winding device. The charging cable 100 is electrically connected to the power output terminal of the main control circuit board 700 through the charging cable storage box 500 for wired charging of the device 20. In the second operating mode, the charging cable 100 is stored in the charging cable storage box 500 by rotating with the winding device. The charging cable 100 is electrically connected to the power output terminal of the main control circuit board 700 through the charging cable storage box 500 for wireless charging of the device 20. The winding device prevents the charging cable 100 from tangling or knotting during its extension or retraction into the charging cable storage box 500.

[0086] Continue to refer to Figure 3 and Figure 4 As shown, the charger 10 also includes a charger housing 600; the charger housing 600 includes an upper housing 610 and a lower housing 620; the wireless charging module 400, the mode switching circuit 200 and the power supply module 300 are placed inside the charger housing 600 on the side of the charging cable storage box (500) near the lower housing 620; the mode switching interface 210 is located at the edge of the lower housing 620.

[0087] The charger 10 also includes a charger housing 600. The upper housing 610 and lower housing 620 of the charger housing 600 form a storage and control mechanism for the charger 10, providing space for the wireless charging module 400, mode switching circuit 200, and power supply module 300 (i.e., the charging cable storage box 500). Specifically, the wireless charging module 400, mode switching circuit 200, and power supply module 300 are placed inside the charger housing 600 and near the lower housing 620. The mode switching interface 210 is located at the edge of the lower housing 620, facilitating the connection between the charging cable end 110 and the mode switching interface 210, and enabling switching between two charging modes.

[0088] Continue to refer to Figure 3 and Figure 4 As shown, the charger 10 also includes an adapter (not shown in the figure); the adapter is disposed inside the housing 600 and located on the side of the storage box 500; the adapter is electrically connected to the power supply module 300, and the power supply module (300) is electrically connected to the wireless charging module (400).

[0089] The charger 10 also includes an adapter, which is electrically connected to an external power source to provide the necessary power to the device 20 to be charged. The charger 10 has space reserved for the adapter, facilitating its electrical connection to the power supply module 300. Simultaneously, while providing wired power in the first operating mode, the power supply module also supplies power to the wireless charging module 400 in the second operating mode based on its electrical connection with the wireless charging module 400.

[0090] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A charger (10) with dual charging modes, characterized in that, It includes a charging cable (100), a mode switching circuit (200), a wireless charging module (400), and a power supply module (300). The charging cable (100) includes a charging cable body (120) and a charging cable outer end (110); the charging cable body (120) includes a positive wire (121) and a negative wire (122); the positive wire (121) includes an inner end (130A) and an outer end (130B). The mode switching circuit (200) includes a mode switching interface (210); The charger (10) includes a first operating mode and a second operating mode; In the first working mode, the outer end (110) of the charging cable is electrically connected to the device to be charged (20), the mode switching circuit (200) connects the power supply module (300) and the charging cable (100), and disconnects the wireless charging module (400) and the inner end (130A) of the positive wire, and the power supply module (300) performs wired charging for the device to be charged (20) through the charging cable (100); In the second working mode, the outer end (110) of the charging cable is electrically connected to the mode switching interface (210), the mode switching circuit (200) disconnects the power supply module (300) and the charging cable (100), and connects the wireless charging module (400) and the inner end (130A) of the positive wire. The outer end (130B) of the positive wire is connected to the wireless charging module (400) through the mode switching interface (210). The positive wire (121) is wound into a coil, and the wireless charging module (400) wirelessly charges the device to be charged (20) through the coil. The mode switching circuit (200) includes a first switch control unit (221) and a second switch control unit (222); In the first working mode, the first switch control unit (221) is turned on, the second switch control unit (222) is turned off, the negative line (122) is electrically connected to the power supply module (300), the positive line (121) is electrically connected to the power supply module (300) through the first switch control unit (221), and the power supply module (300) performs wired charging for the device to be charged (20) through the first switch control unit (221); In the second working mode, the first switch control unit (221) is disconnected and the second switch control unit (222) is turned on. The positive line (121) is electrically connected to the wireless charging module (400) through the second switch control unit (222). The wireless charging module (400) wirelessly charges the device to be charged (20) through the second switch control unit (222).

2. The charger according to claim 1, characterized in that, The first switch control unit (221) includes a first switch element (221A), a second switch element (221B), and a third switch element (221C). The first switching element (221A) includes a first input terminal (221A1), a first output terminal (221A2), and a first control terminal (221A3); the second switching element (221B) includes a second input terminal (221B1), a second output terminal (221B2), and a second control terminal (221B3); and the third switching element (221C) includes a third input terminal (221C1), a third output terminal (221C2), and a third control terminal (221C3). The mode switching circuit (200) further includes a first control branch (230) and a grounding branch (250); The first control terminal (221A3) is electrically connected to the first control branch (230), and the first control branch (230) is electrically connected to the positive output terminal (300A) of the power supply module (300); the first input terminal (221A1) is grounded, and the first output terminal (221A2) is electrically connected to the second control terminal (221B3) and the third control terminal (221C3) respectively. The second input terminal (221B1), the second output terminal (221B2), the third input terminal (221C1), and the third output terminal (221C2) are connected in series between the positive line (121) and the positive output terminal (300A) of the power supply module (300). The grounding branch (250) is connected in series between the first control branch (230) and the negative port (210B) of the mode switching interface (210).

3. The charger according to claim 2, characterized in that, The first switching element (221A) includes an N-type transistor, and the second switching element (221B) and the third switching element (221C) include P-type transistors; The input terminal (230A) of the first control branch is electrically connected to the second input terminal (221B1), and the output terminal (230B) of the first control branch is electrically connected to the first control terminal (221A3); the output terminal (230B) of the first control branch is configured to control the second switch control unit (222) to be turned on or off.

4. The charger according to claim 3, characterized in that, The second switch control unit (222) includes a fourth switch element (222A) and a relay (223); The fourth switching element (222A) includes a fourth input terminal (222A1), a fourth output terminal (222A2) and a fourth control terminal (222A3), and the relay (223) includes a relay power supply terminal (223A1) and a normally open contact (223A2). The mode switching circuit (200) also includes a second control branch (240); The fourth control terminal (222A3) is electrically connected to the second control branch (240), the second control branch (240) is electrically connected to the output terminal (230B) of the first control branch, the fourth input terminal (222A1) is electrically connected to the first input signal (260), the fourth output terminal (222A2) is electrically connected to the relay power supply terminal (223A1), and the normally open contact (223A2) is connected in series between the inner end (130A) of the positive line and the wireless charging module (400). The output terminal (230B) of the first control branch is connected to the second control branch (240) to control the second switch control unit (222) to turn on or off.

5. The charger according to claim 4, characterized in that, The fourth switching element (222A) includes a P-type transistor, and in the second operating mode, the voltage difference between the input signal of the second control branch (240) and the first input signal (260) is less than the threshold voltage of the fourth switching element (222A).

6. The charger according to claim 1, characterized in that, The wireless charging module (400), the power supply module (300), and the mode switching circuit (200) are integrated on a main control circuit board (700).

7. The charger according to claim 1, characterized in that, The charger (10) also includes a charging cable storage box (500), and the charging cable (100) is electrically connected to the power output terminal of the main control circuit board (700) through the charging cable storage box (500). The charging cable storage box (500) also includes a winding device; In the first working mode, the charging cable (100) rotates and extends out of the charging cable storage box (500) together with the winding device. In the second working mode, the charging cable (100) is rotated together with the winding device and stored back in the charging cable storage box (500).

8. The charger according to claim 7, characterized in that, The charger (10) also includes a charger housing (600). The outer casing (600) includes an upper outer casing (610) and a lower outer casing (620). The wireless charging module (400), the mode switching circuit (200), and the power supply module (300) are located inside the charger housing (600) on the side of the charging cable storage box (500) near the lower housing (620). The mode switching interface (210) is located at the edge of the lower housing (620).

9. The charger according to claim 8, characterized in that, The charger also includes an adapter; The adapter is disposed inside the housing and located on the side of the storage box. The adapter is electrically connected to the power supply module (300), and the power supply module is electrically connected to the wireless charging module.

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