A charger and its control method

Abstract

The present invention discloses a charger and a control method thereof. The charger includes: a control module, a wired charging module, and a wireless charging module; the wired charging module includes a transformer, and the wireless charging module includes a wireless charging coil; wherein, the wireless charging coil is located on the surface of the magnetic core of the transformer, and the magnetic core of the transformer serves as the magnetic material of the wireless charging coil, and the magnetic material is configured to gather magnetic flux or / and isolate magnetic flux; the control module is electrically connected to the wired charging module, and the control module is electrically connected to the wireless charging module, and the control module is used to control the working modes and working states of the wired charging module and the wireless charging module. The present invention achieves the effect of reducing the volume of the charger.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of chargers, and in particular, to a charger and a control method thereof. Background Art

[0002] At present, the mobile device market is becoming increasingly mature, with an increasing variety of mobile devices and a growing diversity of power supply methods for mobile devices. To improve the applicability of chargers, more and more chargers integrate wireless charging and wired charging.

[0003] A charger integrating wireless and wired charging includes a wireless charging circuit and a wired charging circuit, making the charger relatively large in size and inconvenient to carry. Summary of the Invention

[0004] The present invention provides a charger and a control method thereof to reduce the size of the charger.

[0005] In a first aspect, embodiments of the present invention provide a charger, which includes: a control module, a wired charging module, and a wireless charging module;

[0006] The wired charging module includes a transformer, and the wireless charging module includes a wireless charging coil; wherein, the wireless charging coil is located on the surface of the magnetic core of the transformer, and the magnetic core of the transformer serves as the magnetic material for the wireless charging coil, and the magnetic material is configured to concentrate or / and isolate magnetic fields;

[0007] The control module is electrically connected to the wired charging module and the control module is electrically connected to the wireless charging module, and the control module is configured to control the working modes and working states of the transformer and the wireless charging coil.

[0008] Optionally, the transformer includes a planar transformer, and the planar transformer includes a magnetic core and a first PCB board, and the first PCB board penetrates through the middle of the magnetic core; the wireless charging coil is located on the first surface of the planar transformer, where the first surface is a surface parallel to the first PCB board.

[0009] Optionally, the wireless charging module further includes a housing; a second PCB board is provided inside the housing, and the wireless charging module, the wired charging module, and the control module are electrically connected through the second PCB board, the transformer is disposed on the second PCB board, the wireless charging coil is disposed on a side of the transformer facing away from the second PCB board, and the control module is disposed on the second PCB board and on a side of the transformer; a charging output port and a charging input component for electrically connecting the second PCB board are formed on the housing.

[0010] Optionally, the charger further includes an input rectification module and an output rectification module;

[0011] The input end of the input rectification module is connected to a power signal;

[0012] The input end of the wired charging module is electrically connected to the output end of the input rectification module, the output end of the wired charging module is connected to an output port through the output rectification module, and the wired charging module outputs a first charging signal through the output rectification module;

[0013] The wireless charging module is electrically connected to the output end of the input rectification module, and the wireless charging module is used to output a second charging signal;

[0014] The control module is electrically connected to the output rectification module, and the control module is further electrically connected to the wireless charging coil. The control module controls the working modes and working states of the wired charging module and the wireless charging module according to the first working information of the output rectification module and the second working information of the wireless charging coil collected.

[0015] Optionally, the wireless charging module further includes a first driving unit, a resonant capacitor, and a first control unit;

[0016] The first end of the first control unit is electrically connected to the control module, the second end of the first control unit is electrically connected to the output end of the input rectification module, and the first control unit is used to output a first sub-control signal according to the control signal of the control module;

[0017] The control end of the first driving unit is electrically connected to the third end of the first control unit, the input end of the first driving unit is electrically connected to the output end of the input rectification module, and the output end of the first driving unit is electrically connected to the wireless charging coil through the resonant capacitor. The first driving unit is used to output a first alternating current signal according to the first sub-control signal.

[0018] Optionally, the wired charging module further includes a second control unit, a second driving unit, and a resonant inductor;

[0019] The first end of the second control unit is electrically connected to the output end of the input rectification module, the second end of the second control unit is electrically connected to the control module, and the second control unit is used to output a second sub-control signal according to the control signal output by the control module;

[0020] The control terminal of the second driving unit is electrically connected to the third terminal of the second control unit. The input terminal of the second driving unit is electrically connected to the output terminal of the input rectification module. The output terminal of the second driving unit is electrically connected to the input terminal of the transformer through the resonant inductor. The second driving unit is configured to output a second alternating current signal according to the second sub-control signal.

[0021] Optionally, the wired charging module further includes a voltage acquisition unit;

[0022] The first terminal of the voltage acquisition unit is electrically connected to the output terminal of the output rectification module. The second terminal of the voltage acquisition unit is electrically connected to the second control unit. The voltage acquisition unit is configured to acquire the voltage information output by the output rectification module and send the voltage information to the second control unit.

[0023] In a second aspect, an embodiment of the present invention further provides a control method for a charger. The control method for the charger is used to control the charger according to any one of the first aspects. The control method for the charger includes:

[0024] Set that the wired charging module and the wireless charging module have overlapping operating frequency bands;

[0025] Acquire the first operating information of the wired charging module and the second operating information of the wireless charging module;

[0026] Regulate the operating modes and operating states of the wired charging module and the wireless charging module according to the first operating information and the second operating information.

[0027] Optionally, regulating the operating modes and operating states of the wired charging module and the wireless charging module according to the first operating information and the second operating information includes:

[0028] Judge whether the operating state of the wireless charging module and the operating state of the wired charging module are standby;

[0029] When one of the operating states of the wireless charging module and the wired charging module is standby and the other is working, the operating mode is executed according to the currently working module;

[0030] When the operating states of the wireless charging module and the wired charging module are both working and there is a sequence of work, the operating mode is executed according to the module that works first, and the operating mode of the module that works later is adjusted to be the same as that of the module that works first;

[0031] When the working states of both the wireless charging module and the wired charging module are working and they work simultaneously, the working mode is executed according to the preset priority. The working mode of the charging module with a lower priority is adjusted to be the same as that of the charging module with a higher priority.

[0032] The fact that the working mode of the wireless charging module is the same as that of the wired charging module means that their working frequencies are the same and the directions of the magnetic lines of force generated by them in the magnetic core are the same.

[0033] Optionally, both the first working information and the second working information are current information.

[0034] In the present invention, the charger integrates a wired charging module and a wireless charging module, enabling the charger to implement two functions of wired charging and wireless charging. The wireless charging coil is located on the surface of the magnetic core of the transformer, and the magnetic core of the transformer can be used as the magnetic material of the wireless charging coil. The wireless charging coil does not require an additional magnetic material, thereby reducing the volume of the charger and enhancing its portability. Moreover, the control module can control the working mode and working state of the transformer and the wireless charging coil, making the direction of the magnetic lines of force inside the magnetic core of the transformer the same as that of the wireless charging coil, thus realizing the integrated design of the transformer and the wireless charging coil. While saving space, the transformer and the wireless charging coil can work properly. The present invention solves the problem that the charger integrating wireless and wired charging is relatively large in volume and not convenient to carry, achieving the effect of reducing the volume of the charger. Description of the Drawings

[0035] Figure 1 is a schematic structural diagram of a charger provided by an embodiment of the present invention;

[0036] Figure 2 is a schematic block diagram of a charger provided by an embodiment of the present invention;

[0037] Figure 3 is another schematic structural diagram of a charger provided by an embodiment of the present invention;

[0038] Figure 4 is another schematic structural diagram of a charger provided by an embodiment of the present invention;

[0039] Figure 5 is another schematic block diagram of a charger provided by an embodiment of the present invention;

[0040] Figure 6 is a flowchart of a control method for a charger provided by an embodiment of the present invention;

[0041] Figure 7 is a flowchart of another control method for a charger provided by an embodiment of the present invention. Detailed Embodiments

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0043] Figure 1 FIG. is a schematic structural diagram of a charger provided by an embodiment of the present invention. Figure 2 FIG. is a schematic block diagram of the principle of a charger provided by an embodiment of the present invention. Refer to Figure 1 and Figure 2 . The charger includes: a control module 110, a wired charging module 120, and a wireless charging module 130; the wired charging module 120 includes a transformer 121, and the wireless charging module 130 includes a wireless charging coil 131; wherein, the wireless charging coil 131 is located on the surface of the magnetic core 122 of the transformer 121, and the magnetic core 122 of the transformer 121 serves as the magnetic material of the wireless charging coil 131, and the magnetic material is configured to concentrate magnetic field or / and isolate magnetic field; the control module 110 is electrically connected to the wired charging module 120, and the control module 110 is electrically connected to the wireless charging module 130. The control module 110 is used to control the working modes and working states of the wired charging module 120 and the wireless charging module 130.

[0044] Specifically, the charger integrates the wired charging module 120 and the wireless charging module 130. The wired charging module 120 includes a transformer 121, and the transformer 121 can convert the power signal, so that the wired charging module 120 can output a first charging signal to perform wired charging on the device to be charged. The wireless charging module 130 includes a wireless charging coil 131, and the wireless charging coil 131 can convert the power signal into a magnetic field signal and emit it, so that the wireless charging module 130 can output a second charging signal to perform wireless charging on the device to be charged. It should be particularly noted that both the above-mentioned wireless charging module 130 and the wired charging module 120 are primary power sources, as opposed to the wireless charging module in the prior art being a secondary power source output, which reduces the loss of wireless charging, thereby improving the overall efficiency. And due to the reduction of power loss, the heat dissipation problems of the transformer and the power supply board can be effectively reduced.

[0045] As Figure 1As shown, the wireless charging coil 131 is located on the surface of the magnetic core 122 of the transformer 121. The magnetic core of the transformer 121 serves as the magnetic material for the wireless charging coil 131. The magnetic material can achieve the effects of magnetic focusing and / or magnetic isolation. The wireless charging coil 131 does not require an additional magnetic material, thereby reducing the volume of the charger and enhancing the portability of the charger. Preferably, the thickness of the magnetic core is not less than 2 mm to meet the requirements of sharing the magnetic core between the transformer and the wireless charging coil and avoid the phenomenon of magnetic saturation in the shared magnetic core. Moreover, the control module 110 can control the working modes and working states of the wired charging module 120 and the wireless charging module 130. For example, it can control the working frequencies of the wired charging module 120 and the wireless charging module 130 to be the same, and can control the directions of the magnetic force lines generated by each, so that the directions of the magnetic force lines of the transformer 121 and the wireless charging coil 131 at the magnetic core 122 are the same, thus solving the problem that the internal magnetic force lines repel each other due to sharing the magnetic core, resulting in mutual interference in the operation of the wired charging module 120 and the wireless charging module 130; that is, through the design of the control method, the drive signals of the wireless charging coil and the transformer can be in the same direction or work independently to avoid the phenomenon of magnetic force line repulsion, thereby realizing the integrated design of the transformer 121 and the wireless charging coil 131. While saving space, the transformer 121 and the wireless charging coil 131 can work normally.

[0046] In addition, the magnetic material can achieve the effects of magnetic focusing and / or magnetic isolation, which can cause the magnetic force lines of the wireless charging coil 131 to diverge in the opposite direction of the transformer 121, so that the circuit of the transformer 121 will not be affected by the magnetic field of the wireless charging coil 131, thus meeting the isolation requirements between the wireless charging coil 131 and the transformer 121. And / or, the magnetic material can cause the magnetic force lines generated by the wireless charging coil 131 to form a short and closed loop, reducing the magnetic force lines dissipated in space, which is beneficial to improving the energy transfer efficiency. The magnetic focusing effect of the magnetic force lines can enhance the inductance of the wireless charging coil 131, effectively improve the coupling coefficient, and increase the charging power.

[0047] Exemplarily, the control module 110 can collect the first current information of the wired charging module 120 and the second current information of the wireless charging module 130. Based on the first current information, the control module 110 can determine whether the wired charging module 120 is working or on standby, and can obtain the current working mode of the wired charging module 120 when it is working. The working mode includes, for example, the working frequency and the current direction. Similarly, based on the second current information, the control module 110 can determine whether the wireless charging module 130 is working or on standby, and can obtain the working frequency of the wireless charging module 130 when it is in the working state. When one of the wired charging module 120 and the wireless charging module 130 is on standby and the other is working, the working mode can be executed according to the currently working module without the need for regulation. When both the wired charging module 120 and the wireless charging module 130 are working and start working simultaneously, the working mode is executed according to the pre-set priority. The working mode of the charging module with a lower priority is adjusted to be the same as that of the charging module with a higher priority. When both the wired charging module 120 and the wireless charging module 130 are working and there is a sequence of working, the working mode is executed according to the module that works first, and the working mode of the module that works later is adjusted to be the same as that of the module that works first. Thus, the working frequencies of the wired charging module 120 and the wireless charging module 130 can be controlled to be the same, and the directions of the magnetic lines of force generated by each can be controlled, so that the directions of the magnetic lines of force of the transformer 121 and the wireless charging coil 131 at the magnetic core 122 are the same, thereby realizing the integrated design of the transformer 121 and the wireless charging coil 131.

[0048] In the technical solution of this embodiment, the charger integrates a wired charging module and a wireless charging module, enabling the charger to achieve two functions of wired charging and wireless charging. The wireless charging coil is located on the surface of the magnetic core of the transformer. The magnetic core of the transformer can be used as the magnetic material of the wireless charging coil, and there is no need to additionally set magnetic materials for the wireless charging coil, thereby reducing the volume of the charger and enhancing the portability of the charger. Moreover, the control module can control the working modes and working states of the transformer and the wireless charging coil, so that the direction of the magnetic lines of force inside the magnetic core of the transformer is the same as that of the magnetic lines of force of the wireless charging coil, thereby realizing the integrated design of the transformer and the wireless charging coil. While saving space, the transformer and the wireless charging coil can work properly. The technical solution of this embodiment solves the problem that the charger integrating wireless and wired charging is large in volume and inconvenient to carry, and achieves the effect of reducing the volume of the charger.

[0049] Optionally, continuing to refer to Figure 1 , the transformer 121 includes a planar transformer. The planar transformer includes a magnetic core 122 and a first PCB board 123. The first PCB board 123 penetrates through the middle of the magnetic core 122. The wireless charging coil 131 is located on the first surface of the planar transformer, where the first surface is the surface parallel to the first PCB board 123.

[0050] Specifically, the transformer 121 is, for example, a planar transformer. A planar transformer is a transformer with characteristics such as high frequency, low profile, very small height, and very high operating frequency. Using a planar transformer can further reduce the volume of the charger. Moreover, the magnetic core 122 of the planar transformer is located outside, and the first PCB board 123 passes through the middle of the magnetic core 122. The first PCB board 123 is provided with windings of the transformer 121. By placing the wireless charging coil 131 on the first surface of the planar transformer, where the first surface is the surface parallel to the first PCB board 123, that is, the wireless charging coil 131 is placed on the surface of the magnetic core 122 with a larger area, the magnetic core of the transformer 121 can be used as the magnetic material of the wireless charging coil 131, and it is placed on the surface with a larger area, so that it can be placed when the size of the wireless charging coil 131 is large, and thus wireless charging coils 131 of various sizes can be placed.

[0051] Figure 3 It is a schematic structural diagram of another charger provided by an embodiment of the present invention. Figure 4 It is a schematic structural diagram of another charger provided by an embodiment of the present invention. Optionally, referring to Figure 3 and Figure 4 the wireless charging module 130 further includes a housing 132; a second PCB board 1321 is provided inside the housing 132. The wireless charging module 130, the wired charging module 120, and the control module 110 are electrically connected through the second PCB board 1321. The transformer 121 is disposed on the second PCB board 1321, the wireless charging coil 131 is disposed on the side of the transformer 121 facing away from the second PCB board 1321, and the control module 110 is disposed on the second PCB board 1321 and on one side of the transformer 121; a charging output port 1322 and a charging input component 1323 for electrically connecting to the second PCB board 1321 are formed on the housing 132.

[0052] Specifically, the housing 132 is, for example, an insulating housing. The wireless charging module 130, the wired charging module 120, and the control module 110 are located inside the housing 132, and the wireless charging coil 131 is disposed on the side of the transformer 121 facing away from the second PCB board 1321, and the control module 110 is disposed on the second PCB board 1321 and on one side of the transformer 121, which can save the space inside the housing 132 and achieve the effect of reducing the size of the charger. When using the charger, the charging input component 1323 can be connected to a power source, and wired charging can be performed by connecting a wired device to be charged to the charging output port 1322, and wireless charging can be performed by placing a wireless device to be charged at the corresponding position of the wireless charging coil 131, so that wired charging and wireless charging can be performed simultaneously.

[0053] Figure 5It is a schematic block diagram of another charger provided by an embodiment of the present invention. Optionally, refer to Figure 5 , the charger further includes an input rectification module 140 and an output rectification module 150; the input end of the input rectification module 140 is connected to a power signal V1; the input end of the wired charging module 120 is electrically connected to the output end of the input rectification module 140, and the output end of the wired charging module 120 is connected to the output port through the output rectification module 150. The wired charging module 120 outputs a first charging signal through the output rectification module 150; the wireless charging module 130 is electrically connected to the output end of the input rectification module 140, and the wireless charging module 130 is used to output a second charging signal; the control module 110 is electrically connected to the output rectification module 150, and the control module 110 is further electrically connected to the wireless charging coil 131. The control module 110 controls the working modes and working states of the wired charging module 120 and the wireless charging module 130 according to the first working information of the output rectification module 150 and the second working information of the wireless charging coil 131 collected.

[0054] Specifically, the power signal is, for example, commercial power. The input rectification module 140 can rectify the power signal V1 to convert the power signal into a direct current signal. The transformer 121 can convert the alternating current signal corresponding to the direct current signal, so as to convert the high-voltage signal into a low-voltage signal. The output rectification module 150 converts the low-voltage alternating current signal output by the transformer 121 into a low-voltage direct current signal, thereby outputting a first charging signal for wired charging of the device to be charged. The wireless charging coil 131 can convert the alternating current signal corresponding to the direct current signal into a magnetic field signal, thereby outputting a second charging signal for wireless charging of the device to be charged.

[0055] Preferably, both the first working information and the second working information are current information, but not limited thereto. In other embodiments, they can also be voltage information, etc. The control module 110 can obtain the first current information of the output rectification module 150, thereby obtaining the first current information of the wired charging module 120. According to the first current information, it can be determined whether the wired charging module 120 is working or on standby. For example, when the current value corresponding to the first current information is zero, it indicates that the wired charging module 120 is on standby; when the current value corresponding to the first current information is not zero, it indicates that the wired charging module 120 is working. The control module 110 can determine the working frequency of the wired charging module 120 according to the first current information. The control module 110 can also obtain the second current information of the wireless charging coil 131. When the current value corresponding to the second current information is zero, it indicates that the wireless charging module 130 is on standby; when the current value corresponding to the second current information is not zero, it indicates that the wireless charging module 130 is working. The control module 110 can determine the working state of the wireless charging module 130 according to the first current information, so as to control the working modes and working states of the wired charging module 120 and the wireless charging module 130.

[0056] Optionally, refer to Figure 4 Figure 4 , the wireless charging module 130 further includes a first driving unit 133, a resonant capacitor 134, and a first control unit 135; a first end of the first control unit 135 is electrically connected to the control module 110, a second end of the first control unit 135 is electrically connected to an output end of the input rectification module 140, and the first control unit 135 is configured to output a first sub-control signal according to a control signal of the control module 110; a control end of the first driving unit 133 is electrically connected to a third end of the first control unit 135, an input end of the first driving unit 133 is electrically connected to an output end of the input rectification module 140, and an output end of the first driving unit 133 is electrically connected to the wireless charging coil 131 through the resonant capacitor 134, and the first driving unit 133 is configured to output a first alternating current signal according to the first sub-control signal.

[0057] Specifically, the first driving unit 133 can convert the direct current signal output by the input rectification module 140 into a first alternating current signal, and can change the power and frequency of the direct current signal output by the input rectification module 140. The first control unit 135 can control the frequency of the first alternating current signal output by the first driving unit 133. The resonant capacitor 134 and the wireless charging coil 131 can form resonance to convert the first alternating current signal into a magnetic field signal for output, and can charge the wireless charging device.

[0058] Exemplarily, the control module 110 can output a control signal according to the first current information of the wired charging module 120 and the second current information of the wireless charging module 130. For example, when the frequencies of the first current information and the second current information are different, and the transformer 121 and the wireless charging coil 131 start working simultaneously, the control module 110 sends a control signal for adjusting the working frequency of the wireless charging coil 131 to the first control unit 135, and the first control unit 135 will adjust the output first sub-control signal according to the control signal, so as to adjust the frequency of the first alternating current signal output by the first driving unit 133, so that the frequency of the second current information of the wireless charging coil 131 is the same as the frequency of the first current information of the transformer 121. At the same time, the direction of the current signal can also be regulated so that the magnetic force line directions of the transformer 121 and the wireless charging coil 131 at the magnetic core 122 are the same.

[0059] Optionally, refer to Figure 5, the wired charging module 120 further includes a second control unit 125, a second driving unit 126, and a resonant inductor 127; the input end of the second control unit 125 is electrically connected to the output end of the input rectification module 140, the control end of the second control unit 125 is electrically connected to the control module 110, and the second control unit 125 is configured to output a second driving signal according to the control signal output by the control module 110; the control end of the second driving unit 126 is electrically connected to the output end of the second control unit 125, the input end of the second driving unit 126 is electrically connected to the output end of the input rectification module 140, and the output end of the second driving unit 126 is electrically connected to the input end of the transformer 121 through the resonant inductor 127. The second driving unit 126 is configured to output a second alternating current signal according to the second driving signal.

[0060] Specifically, the control module 110 can output a control signal according to the first current information of the wired charging module 120 and the second current information of the wireless charging module 130. For example, when the frequencies of the first current information and the second current information are different and the wireless charging module 130 starts to work first, that is, the wireless charging coil 131 starts to work first, the frequency of the wired charging module will be adjusted according to the frequency of the wireless charging module 130. The control module 110 will output a control signal for adjusting the frequency of the wired charging module 120 to the second control unit 125, and the second control unit 125 will adjust the output second sub-control signal according to the control signal, so that the frequency of the second alternating current signal output by the second driving unit 126 changes, thereby adjusting the frequency of the first current information of the transformer 121. At the same time, the direction of the current signal can also be regulated so that the magnetic force lines of the transformer 121 and the wireless charging coil 131 at the magnetic core 122 are in the same direction.

[0061] Optionally, refer to Figure 5 , the wired charging module 120 further includes a voltage acquisition unit 128; the first end of the voltage acquisition unit 128 is electrically connected to the output end of the output rectification module 150, and the second end of the voltage acquisition unit 128 is electrically connected to the second control unit 125. The voltage acquisition unit 128 is configured to acquire the voltage information output by the output rectification module 150 and send the voltage information to the second control unit 125.

[0062] Specifically, the voltage acquisition unit 128 can acquire the voltage information output by the output rectification module 150 and send the voltage information to the second control unit 125, and the second control unit 125 can adjust the output driving signal according to the feedback voltage information, so that the voltage information output by the transformer 121 and the output rectification module 150 meets the requirements. Optionally, the voltage acquisition unit 128 includes, for example, an optocoupler.

[0063] Optionally, refer to Figure 5, the charger further includes an output interface unit 129 and an output port P1. The wired charging module 120 is connected to the output interface unit 129 through an output rectification module 150. The output interface unit 129 is connected to the output port. The output rectification module 150 outputs a low-voltage DC signal to the output interface unit 129, and the output interface unit 129 outputs a second charging signal through the output port P1.

[0064] In the technical solution of this embodiment, the control module is respectively connected to the output rectification module and the wireless charging coil, and can obtain the first current information of the wired charging module and the second current information of the wireless charging module. According to the first current information and the second current information, corresponding control signals can be output to adjust the first sub-control signal output by the first control unit and the second sub-control signal output by the second control unit, so as to adjust the first AC signal output by the first driving unit and the second AC signal output by the second driving unit, and realize the adjustment of the working modes of the transformer and the wireless charging coil, so that the magnetic field lines at the magnetic core of the transformer and the wireless charging coil have the same direction.

[0065] This embodiment also provides a control method for a charger. The control method for the charger is used to control the charger described in any of the above embodiments; Figure 6 is a flowchart of a control method for a charger provided by an embodiment of the present invention. Refer to Figure 6 , the control method for the charger is executed by the control module. The control method for the charger includes:

[0066] S510. Set that the wired charging module and the wireless charging module have overlapping working frequency bands.

[0067] Specifically, the working frequency band of the overlapping part of the wired charging module 120 and the wireless charging module 130 can be set first, so that the wired charging module 120 and the wireless charging module 130 work in the overlapping working frequency band, which is convenient for adjusting the working frequencies of the wired charging module 120 and the wireless charging module 130 and for controlling the working frequencies of the wired charging module 120 and the wireless charging module 130 to be the same.

[0068] S520. Collect the first working information of the wired charging module and the second working information of the wireless charging module.

[0069] Specifically, the control module 110 can collect the first working information of the wired charging module 120 and the second working information of the wireless charging module 130, so as to know the working modes and working states of the wired charging module 120 and the wireless charging module 130 in real time according to the first working information and the second working information.

[0070] S530. Regulate the working modes and working states of the wired charging module and the wireless charging module according to the first working information and the second working information.

[0071] Specifically, the control module 110 can determine whether the transformer 121 is working or on standby according to the first working information, and can obtain the current working mode of the transformer 121 when it is working. The working mode includes, for example, the working frequency. Similarly, the control module 110 can determine whether the wireless charging coil 131 is working or on standby according to the second working information, and can obtain the working frequency of the wireless charging coil 131 when it is working. The control module 110 can adjust the working modes and working states of the transformer 121 and the wireless charging coil 131 according to the current working mode of the transformer 121 and the current working mode of the wireless charging coil 131, so that the directions of the magnetic lines of force of the transformer 121 and the wireless charging coil 131 at the magnetic core 122 are the same.

[0072] Preferably, both the first working information and the second working information are current information.

[0073] The control module 110 can collect the first current information and the second current information of the wired charging module 120 and the wireless charging module 130, and can regulate the working modes and working states of the wired charging module 120 and the wireless charging module 130 according to the first current information and the second current information. In some other embodiments, the first working information and the second working information can also be voltage information.

[0074] In the technical solution of this embodiment, the wireless charging coil is located on the surface of the magnetic core of the transformer. The control module can obtain the first working information of the wired charging module and the second working information of the wireless charging module, and the control module can adjust the working modes and working states of the wired charging module and the wireless charging module according to the first working information and the second working information, so that the directions of the magnetic lines of force of the transformer and the wireless charging coil at the magnetic core are the same, and the phenomenon of magnetic saturation of the magnetic core is avoided, thereby realizing the integrated design of the transformer and the wireless charging coil. While saving space, the transformer and the wireless charging coil can work normally.

[0075] Figure 7 It is a flowchart of another control method for a charger provided by an embodiment of the present invention. Optionally, refer to Figure 7 , the control method of the charger includes:

[0076] S610. Set the working frequency bands of the wired charging module and the wireless charging module to overlap with each other.

[0077] S620. Collect the first working information of the wired charging module and the second working information of the wireless charging module.

[0078] S630. Determine whether the working state of the wireless charging module and the working state of the wired charging module are on standby.

[0079] Specifically, based on the first working information and the second working information, it can be determined whether the working states of the wired charging module 120 and the wireless charging module are standby or working. For example, when the current value corresponding to the first working information is not zero, it can be determined that the wired charging module 120 is working; when the current value corresponding to the first working information is zero, it can be determined that the wired charging module 120 is in standby. When the current value corresponding to the second working information is not zero, it can be determined that the wireless charging module 130 is working; when the current value corresponding to the second working information is zero, it can be determined that the wireless charging module 130 is in standby.

[0080] S640. When one of the wireless charging module and the wired charging module is in standby and the other is working, the working mode is executed according to the currently working module.

[0081] Specifically, when one of the wireless charging module 130 and the wired charging module 120 is in standby and the other is working, there will be no interference and conflict between the two charging modules. The working mode is executed according to the currently working charging module, and there is no need to adjust the working modes of the wired charging module 120 and the wireless charging module 130.

[0082] S650. When the working states of both the wireless charging module and the wired charging module are working and there is a sequence of work, the working mode is executed according to the module that starts working first, and the working mode of the module that starts working later is adjusted to be the same as that of the module that starts working first.

[0083] Specifically, when the working states of both the wireless charging module 130 and the wired charging module 120 are working and there is a sequence of work, if the wired charging module 120 starts working first and the wireless charging module 130 starts working later, the working mode of the wireless charging module 130 is adjusted to be the same as that of the wired charging module 120. If the wireless charging module 130 starts working first and the wired charging module 120 starts working later, the working mode of the wired charging module 120 is adjusted to be the same as that of the wireless charging module 130, so that the magnetic field lines of the transformer 121 and the wireless charging coil 131 at the magnetic core 122 are in the same direction.

[0084] S660. When the working states of both the wireless charging module and the wired charging module are working and they work simultaneously, the working mode is executed according to the pre-set priority. The working mode of the charging module with a lower priority is adjusted to be the same as that of the charging module with a higher priority.

[0085] Among them, the working modes of the wireless charging module and the wired charging module being the same means that their working frequencies are the same and the magnetic field lines generated by them in the magnetic core are in the same direction.

[0086] Specifically, when the working states of both the wireless charging module 130 and the wired charging module 120 are working and they start working simultaneously, the working mode of the charging module with a lower priority is adjusted to be the same as that of the charging module with a higher priority, so that the magnetic field line directions of the transformer 121 and the wireless charging coil 131 at the magnetic core 122 are the same, facilitating the integrated design of the wired charging module 120 and the wireless charging module 130. For example, the wired charging module 120 has a higher priority and the wireless charging module 130 has a lower priority; or the wireless charging module 130 has a higher priority and the wired charging module 120 has a lower priority. The specific setting of the priority can be determined according to specific circumstances and is not limited herein.

[0087] In the technical solution of this embodiment, the control module determines whether the working states of the wireless charging module and the wired charging module are standby according to the first working information and the second working information. When one of the wireless charging module and the wired charging module is in the standby state and the other is in the working state, the working mode is executed according to the currently working module without adjustment; when the working states of both the wireless charging module and the wired charging module are working and there is a sequence in their working, if the wired charging module starts working first and the wireless charging module starts working later, the working mode of the wireless charging module is adjusted to be the same as that of the wired charging module; if the wireless charging module starts working first and the wired charging module starts working later, the working mode of the wired charging module is adjusted to be the same as that of the wireless charging module; when the working states of both the wireless charging module and the wired charging module are working and they start working simultaneously, the working mode of the charging module with a lower priority is adjusted to be the same as that of the charging module with a higher priority, so that the magnetic field line directions of the transformer and the wireless charging coil at the magnetic core are the same, thereby realizing the integrated design of the transformer and the wireless charging coil. While saving space, the transformer and the wireless charging coil can work properly.

[0088] Note that the above is only a preferred embodiment of the present invention and the applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope 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. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A charger, characterized in that, Comprising: A control module, a wired charging module, and a wireless charging module; The wired charging module includes a transformer, and the wireless charging module includes a wireless charging coil; wherein, the wireless charging coil is located on the surface of the magnetic core of the transformer, and the magnetic core of the transformer serves as the magnetic material for the wireless charging coil. The magnetic material is configured to concentrate magnetic flux or / and isolate magnetic flux, so that the magnetic lines of force of the wireless charging coil diverge in opposite directions towards the transformer, and / or so that the magnetic lines of force of the wireless charging coil form a closed loop; the wireless charging coil is used to convert a power signal into a magnetic field signal and transmit it; The control module is electrically connected to the wired charging module, and the control module is also electrically connected to the wireless charging module. The control module is used to control the working modes and working states of the wired charging module and the wireless charging module, so that the working modes are the same when both the wired charging module and the wireless charging module are working. Among them, the same working mode of the wireless charging module and the wired charging module means that their working frequencies are the same, and the directions of the magnetic lines of force generated by them in the magnetic core are the same.

2. The charger according to claim 1, characterized in that, The transformer includes a planar transformer, and the planar transformer includes a magnetic core and a first PCB board. The first PCB board penetrates through the middle of the magnetic core; the wireless charging coil is located on the first surface of the planar transformer, where the first surface is the surface parallel to the first PCB board.

3. The charger according to claim 1, wherein It further includes a housing; a second PCB board is provided inside the housing. The wireless charging module, the wired charging module, and the control module are electrically connected through the second PCB board. The transformer is disposed on the second PCB board, the wireless charging coil is disposed on the side of the transformer facing away from the second PCB board, and the control module is disposed on the second PCB board and on one side of the transformer; a charging output port and a charging input component for electrically connecting the second PCB board are formed on the housing.

4. The charger according to claim 1, wherein It further includes an input rectification module and an output rectification module; The input end of the input rectification module is connected to a power signal; The input end of the wired charging module is electrically connected to the output end of the input rectification module, and the output end of the wired charging module is connected to the charging output port through the output rectification module. The wired charging module outputs a first charging signal through the output rectification module and the charging output port; The wireless charging module is electrically connected to the output end of the input rectification module, and the wireless charging module is used to output a second charging signal; The control module is electrically connected to the output rectification module, and the control module is also electrically connected to the wireless charging coil. The control module controls the working modes and working states of the wired charging module and the wireless charging module according to the first working information of the output rectification module and the second working information of the wireless charging coil collected.

5. The charger according to claim 4, characterized in that, The wireless charging module further includes a first driving unit, a resonant capacitor, and a first control unit; The first end of the first control unit is electrically connected to the control module, the second end of the first control unit is electrically connected to the output end of the input rectification module, and the first control unit is configured to output a first sub-control signal according to the control signal of the control module; The control end of the first driving unit is electrically connected to the third end of the first control unit, the input end of the first driving unit is electrically connected to the output end of the input rectification module, and the output end of the first driving unit is electrically connected to the wireless charging coil through the resonant capacitor. The first driving unit is configured to output a first alternating current signal according to the first sub-control signal.

6. The charger according to claim 4, characterized in that, The wired charging module further includes a second control unit, a second driving unit and a resonant inductor; The first end of the second control unit is electrically connected to the output end of the input rectification module, the second end of the second control unit is electrically connected to the control module, and the second control unit is configured to output a second sub-control signal according to the control signal output by the control module; The control end of the second driving unit is electrically connected to the third end of the second control unit, the input end of the second driving unit is electrically connected to the output end of the input rectification module, and the output end of the second driving unit is electrically connected to the input end of the transformer through the resonant inductor. The second driving unit is configured to output a second alternating current signal according to the second sub-control signal.

7. The charger according to claim 6, wherein The wired charging module further includes a voltage acquisition unit; The first end of the voltage acquisition unit is electrically connected to the output end of the output rectification module, the second end of the voltage acquisition unit is electrically connected to the second control unit, and the voltage acquisition unit is configured to acquire the voltage information output by the output rectification module and send the voltage information to the second control unit.

8. A control method for a charger, characterized in that, The control method of the charger is used to control the charger according to any one of claims 1-7; The control method of the charger is executed by the control module and includes: Setting that the wired charging module and the wireless charging module have overlapping operating frequency bands; Acquiring the first operating information of the wired charging module and the second operating information of the wireless charging module; Adjusting the operating modes and operating states of the wired charging module and the wireless charging module according to the first operating information and the second operating information, so that the operating modes are the same when both the wired charging module and the wireless charging module are operating. Wherein, the operating mode of the wireless charging module being the same as that of the wired charging module means that their operating frequencies are the same and the directions of the magnetic lines of force generated in the magnetic core are the same.

9. The control method of the charger according to claim 8, characterized in that, Adjusting the operating modes and operating states of the wired charging module and the wireless charging module according to the first operating information and the second operating information includes: Judging whether the operating state of the wireless charging module and the operating state of the wired charging module are standby; When one of the wireless charging module and the wired charging module is in the standby state and the other is in the operating state, the operating mode is executed according to the currently operating module; When the working states of both the wireless charging module and the wired charging module are working and there is a sequence of operation, the working mode follows the module that starts working first, and the working mode of the module that starts working later is adjusted to be the same as that of the module that starts working first. When the working states of both the wireless charging module and the wired charging module are working and they work simultaneously, the working mode follows the preset priority. The working mode of the charging module with a lower priority is adjusted to be the same as that of the charging module with a higher priority.

10. The control method of the charger according to claim 9, characterized in that, Both the first working information and the second working information are current information.

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