CN112737063B - Charging head and wireless charging method - Google Patents
Charging head and wireless charging method Download PDFInfo
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- CN112737063B CN112737063B CN202110106658.0A CN202110106658A CN112737063B CN 112737063 B CN112737063 B CN 112737063B CN 202110106658 A CN202110106658 A CN 202110106658A CN 112737063 B CN112737063 B CN 112737063B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The application discloses a charging head and a wireless charging method, belongs to the field of wireless charging, and is used for solving the problem of an electronic equipment configuration dedicated wireless charging base. The method comprises the following steps: a voltage conversion module; the state detection module is connected with the voltage conversion module and used for detecting a charging mode of the charging head, wherein the charging mode comprises a wired charging mode and a wireless charging mode; the switch module is connected with the state detection module or integrated with the state detection module into a whole and is used for switching the connection state between the voltage conversion module and at least two charging interfaces according to the charging mode; and the at least two charging interfaces are connected with the switch module and are used for supplying power to the load.
Description
Technical Field
The application belongs to the field of wireless charging, and particularly relates to a charging head and a wireless charging method.
Background
The wireless charging function of the terminal equipment enables a user to not need to repeatedly plug and pull the charging wire connector, and great convenience is provided for the user.
However, in the current wireless charging scheme, a special wireless charging base needs to be configured for the electronic device, and the wireless charging base needs to be purchased independently by a user, is high in cost, is inconvenient to carry when the user goes out for use, brings inconvenience to the charging process, and influences the user experience.
Disclosure of Invention
The embodiment of the application aims to provide a charging head and a wireless charging method, which can solve the problem of configuring a special wireless charging base for electronic equipment.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, embodiments of the present application provide a charging head, the charging head comprising: a voltage conversion module; the state detection module is connected with the voltage conversion module and used for detecting a charging mode of the charging head, wherein the charging mode comprises a wired charging mode and a wireless charging mode; the switch module is connected with the state detection module or integrated with the state detection module into a whole and is used for switching the connection state between the voltage conversion module and at least two charging interfaces according to the charging mode; and the at least two charging interfaces are connected with the switch module and are used for supplying power to the load.
In a second aspect, embodiments of the present application provide a method for wireless charging, the method including: connecting two interfaces of the exciting coil with a first end of a first charging interface of the charging head and a first end of a second charging interface of the charging head respectively; placing an electronic device having an induction coil over the excitation coil to charge a battery of the electronic device; wherein the charging head is a charging head as described in any one or more of the herein.
The technical scheme that this application adopted can reach following beneficial effect:
the embodiment of the application discloses a charging head and a wireless charging method, wherein the charging head and the wireless charging method are characterized by comprising a voltage conversion module; the state detection module is connected with the voltage conversion module and used for detecting a charging mode of the charging head, wherein the charging mode comprises a wired charging mode and a wireless charging mode; the switch module is connected with the state detection module or integrated with the state detection module into a whole and is used for switching the connection state between the voltage conversion module and at least two charging interfaces according to the charging mode; and the at least two charging interfaces are connected with the switch module and are used for supplying power to the load, so that the electronic equipment can be wirelessly charged without configuring a special wireless charging base.
Drawings
Fig. 1 shows a schematic diagram of an intelligent charging circuit of a charging head according to an embodiment of the present application;
fig. 2 shows a schematic diagram of another intelligent charging circuit of the charging head disclosed in the embodiment of the present application;
fig. 3 is a schematic diagram of a wired charging circuit of the charging head according to an embodiment of the present application;
fig. 4 is a schematic diagram of a wireless charging circuit of a charging head according to an embodiment of the present disclosure;
FIGS. 5a-5b are schematic diagrams illustrating wireless charging current circuit configurations of a charging head disclosed in embodiments of the present application;
fig. 6 shows a flowchart of a method of wireless charging provided by an embodiment of the present application;
fig. 7 shows a schematic diagram of a wireless charging operation of the charging head disclosed in the embodiment of the present application;
fig. 8 shows a flowchart of a method of wireless charging provided in an embodiment of the present application;
fig. 9a-9b are schematic diagrams illustrating states of a method for wireless charging according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The charging head provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.
Fig. 1 illustrates a schematic diagram of an intelligent charging circuit of a charging head according to an embodiment of the present application, and as shown in fig. 1, the charging head 10 may include a voltage conversion module 11, a state detection module 12, a switch module 13, and at least two charging head interfaces, such as a first charging interface 141 and a second charging interface 142.
In this embodiment of the present application, the state detection module 12 is connected to the voltage conversion module 11, where the voltage conversion module 11 may be a DC-DC converter (Direct current-Direct current converter), and the DC-DC converter is a voltage converter that effectively outputs a fixed voltage after converting an input voltage, and the state detection module 12 is configured to detect a charging mode of the charging head 10, where the charging mode of the charging head 10 includes a wired charging mode and a wireless charging mode. For example, it may be determined, according to the detection value of the state detection module 12, whether the charging lines 20 inserted into the plurality of charging interfaces of the charging head 10 are the same or each charging interface is inserted with one charging line, so as to determine the charging mode of the charging head 10, specifically, when at least two charging interfaces of the plurality of charging interfaces of the charging head 10 are connected to the same charging line 20 with two ends being communicated, for example, the charging line 20 with two ends being communicated, where the first charging interface 141 and the second charging interface 142 are connected, the charging mode of the charging head 10 is a wireless charging mode; when each charging interface of the charging head 10 is connected to one end of one charging wire 20, the charging mode of the charging head 10 is a wired charging mode.
The switch module 13 is connected with the state detection module 12 or integrated with the state detection module 12, and is used for switching connection states between the voltage conversion module 11 and the plurality of charging interfaces according to the charging mode detected by the state detection module 12. For example, according to the detection value of the state detection module 12, it is determined that the plurality of charging interfaces of the charging head 10 are respectively connected to one end of each charging wire 20, and the other end of the charging wire 20 is connected to an interface of an electronic device, for example, the first electronic device 30 or the second electronic device 40, that is, in the case that the charging mode detected by the state detection module 12 is the wired charging, the switch module 13 may switch the connection state between the plurality of charging interfaces to a state of complete isolation between the plurality of charging interfaces, where the charging state of the charging head 10 is the wired charging mode; in the case where the charging mode detected by the state detection module 12 is wireless charging, that is, when the state detection module 12 detects that at least two charging heads of the plurality of charging interfaces are connected to the charging line 20 with two ends being communicated, the switch module 13 may switch the circuit connection relationship between the plurality of charging interfaces, so that the charging head 10 and the charging line 20 inserted into the charging interface form a closed loop as an exciting coil, and the exciting coil and an induction current generated by a wireless charging coil (induction coil 31) in the electronic device are utilized to wirelessly charge the first electronic device 30 or the second electronic device 40, and at this time, the charging state of the charging head 10 is in the wireless charging mode, where the type of the first electronic device 30 and the type of the second electronic device 40 may be different, the type of the electronic device is not particularly limited in the embodiment of the present application.
The plurality of charging interfaces are each connected to the switch module 13 for supplying power to the electronic device. For example, two charging interfaces of the plurality of charging interfaces of the charging head 10 are connected with the same charging wire 20 with two ends communicated, a closed loop is formed, and the first electronic device 30 or the second electronic device 40 is placed on the charging wire 20 to charge the same.
Specifically, when the plurality of charging interfaces of the charging head 10 are respectively connected with the plurality of different charging wires 20, the current detection value of the state detection module 12 is used to determine that the charging mode of the charging head 10 is the wired charging mode, at this time, the state detection module 12 indicates the charging mode of the charging head 10 to the switch module 13, for example, the state detection module 12 indicates the charging mode of the charging head 10 to the charging control module, and the connection relationship between the voltage conversion module 11 and the plurality of charging interfaces is switched by the switch module 13, so that the plurality of charging interfaces are disconnected, and the current directions of the plurality of charging interfaces are controlled to flow to the electronic device through the charging wires 20 by the charging interfaces, so as to charge the plurality of electronic devices simultaneously.
When two charging interfaces of the plurality of charging interfaces of the charging head 10 are connected with a charging wire 20 with two ends communicated, for example, one end of the charging wire 20 is inserted into a first charging interface 141 of the charging head 10, and the other end is inserted into a second charging interface 142 of the charging head 10, the charging mode of the charging head 10 at this time is judged to be a wireless charging mode according to the current detection value of the state detection module 12, and at this time, the switch module 13 switches the connection relationship between the voltage conversion module 11 and the plurality of charging interfaces, so that the two charging interfaces of the plurality of charging interfaces of the charging head 10 are connected, and the current direction on the charging head 10 is controlled to flow into a second charging interface 142 from the first charging interface 141 through the charging wire 20, so as to form a closed loop, which can play a role of a wireless charging base, and further charge different types of electronic devices respectively.
In this embodiment, the voltage conversion modules 11 are adapted to the charging interfaces one by one, and the number of the voltage conversion modules 11 and the number of the charging interfaces are at least two.
In one implementation, the state detection module 12 may be at least one of an impedance detection module, a voltage detection module, a current detection module.
Further, fig. 2 shows a schematic diagram of another intelligent charging circuit structure of the charging head disclosed in the embodiment of the present application, as shown in fig. 2, the charging head 10 may further include a voltage transformation rectifying module 15 and a charging control module 16, where the voltage transformation rectifying module 15 is connected with the voltage conversion module 11, the voltage transformation rectifying module 15 is composed of two units of a voltage transformation circuit and a rectifying circuit, and is used for converting a power supply voltage of a power grid used in life, for example, 220V alternating current, into a low-voltage direct current required by the charging head 10 through voltage reduction of the voltage transformation circuit and rectification of the rectifying circuit, and the charging control module 16 is respectively connected with the voltage conversion module 11, the state detection module 12 and the switching module 13, and controls the switching module 13 through the charging control module 16, so as to control current directions of a plurality of charging interfaces.
In this embodiment of the present application, through setting up state detection module 12, switch module 13 and charge control module 16 inside charging head 10, when state detection module 12 detects that at least two charging interfaces of charging head 10 insert the charging wire 20 of same root intercommunication, charge control module 16 controls switch module 13 to switch the relation of connection between voltage conversion module 11 and at least two charging interfaces, make the current direction on charging head 10 flow into another charging interface from a charging interface via charging wire 20, and then make charging wire 20 form a closed loop and regard as the exciting coil, utilize the induced current that this exciting coil and the wireless charging coil (induction coil 31) in the electronic equipment produced to charge for different types of electronic equipment, thereby solve the electronic equipment and need dispose dedicated wireless charging base's problem when wireless charging.
In one possible implementation, fig. 3 shows a schematic diagram of a wired charging circuit of the charging head disclosed in the embodiment of the present application, fig. 4 shows a schematic diagram of a wireless charging circuit of the charging head disclosed in the embodiment of the present application, and as shown in fig. 3 or fig. 4, the state detection module 12 may be an impedance detection element, and may intelligently determine the working state of the charging head 10 according to the state detection module 12 and the charging control module 16. Specifically, the charging control module 16 may measure the impedance values between all the charging interfaces on the charging head 10, and when the detected value of the impedance detecting element is greater than the first threshold, the charging mode of the charging head 10 is a wired charging mode, and at this time, the plurality of charging interfaces of the charging head 10 may output currents to charge a plurality of electronic devices simultaneously. A first threshold, such as 1 megaohm; when the detection value of the impedance detection element is smaller than the second threshold, the charging mode of the charging head 10 is a wireless charging mode, and at this time, two charging interfaces of the plurality of charging interfaces of the charging head 10 are respectively connected with a charging line 20 with two ends communicated with each other to form a closed loop, so as to charge one electronic device. The second threshold is for example less than 5 ohms and the first threshold is greater or substantially greater than the second threshold.
The state detection module 12 is not limited to be an impedance detection element, but may be a plurality of detection elements such as a voltage detection element and a current detection element, and is not limited in the embodiment of the present application.
In one possible implementation manner, the voltage conversion module 11 may include a first voltage conversion module and a second voltage conversion module, where a first loop 17 is connected between the first voltage conversion module and two charging interfaces of the plurality of charging interfaces, a second loop 18 is connected between the second voltage conversion module and two charging interfaces of the plurality of charging interfaces, and the switch module 13 is configured to control the first loop 17 and the second loop 18 to be turned on when the charging mode detected by the state detection module 12 is a wireless charging mode, and current directions in the first loop 17 and the second loop 18 are consistent.
In this embodiment, fig. 5a-5b show schematic diagrams of wireless charging current circuit structures of the charging head disclosed in the embodiment of the present application, and as shown in fig. 5a-5b, the current directions of the first loop 17 and the second loop 18 in the charging head 10 are the same.
Specifically, when the current directions of the first loop 17 and the second loop 18 of the charging head 10 are as shown in fig. 5a, the first loop 17 is a loop formed by sequentially connecting the first output end of the first voltage conversion module, the first end of the first charging interface 141 of the two charging interfaces of the plurality of charging interfaces, the first end of the second charging interface 142 of the two charging interfaces of the plurality of charging interfaces, and the first ground end of the first voltage conversion module. The second circuit 18 is a circuit formed by sequentially connecting a first output terminal of the second voltage conversion module, a ground terminal of the first charging interface 141, a ground terminal of the second charging interface 142, and a second ground terminal of the second voltage conversion module. The current direction of the first loop 17 and the second loop 18 is clockwise, and flows from the first end of the first charging interface 141 to the first end of the second charging interface 142.
When the current directions of the first loop 17 and the second loop 18 of the charging head 10 are as shown in fig. 5b, the first loop is a loop formed by sequentially connecting the first output end of the first voltage conversion module 17, the ground end of the second charging interface 142 of the two charging interfaces of the plurality of charging interfaces, the ground end of the first charging interface 141 of the two charging interfaces of the plurality of charging interfaces, and the first ground end of the first voltage conversion module; the second circuit 18 is a circuit formed by sequentially connecting a first output end of the second voltage conversion module, a first end of the second charging interface 142, a first end of the first charging interface 141, and a second ground end of the second voltage conversion module. The current direction of the first loop 17 and the second loop 18 is counter-clockwise, and flows from the first end of the second charging interface 142 to the first end of the second charging interface 141.
In this embodiment, the connection relationship of the internal circuit of the charging head 10 is mainly utilized, so that the charging head 10 can perform wireless charging on electronic devices, and the current directions of different paths in the coil are required to be consistent during wireless charging.
In one possible implementation manner, the voltage conversion module 11 may further include a first voltage conversion module and a second voltage conversion module, where a third loop is connected between the first voltage conversion module and the first charging interface 141 of the two charging interfaces of the plurality of charging interfaces, and the third loop is a first output end of the first voltage conversion module, a first end of the first charging interface 141, the charging line 20, and the electronic device, and a direction of the current flows to the electronic device through the first output end of the first voltage conversion module. In this case, the state detection module 12 detects that the charging mode of the charging head 10 is a wired charging mode, and the switch module 13 controls the third loop to be turned on, so as to charge the electronic device.
A fourth loop is connected between the second voltage conversion module and the second charging interface 142 of the two charging interfaces of the plurality of charging interfaces, the fourth loop is a first output end of the second voltage conversion module, a second end of the second charging interface 142, the charging line 20 and the electronic device, and the current flows to the electronic device through the first output end of the second voltage conversion module. In this case, the state detection module 12 detects that the charging mode of the charging head 10 is the wired charging mode, and the switch module 13 controls the fourth loop to be turned on, so as to charge the electronic device.
In this embodiment, it may be determined whether the charging mode of the charging head 10 is the wired charging mode or the wireless charging mode according to the detection value of the state detection module 12, and when the state detection module 12 detects that the charging mode of the charging head 10 is the wired charging mode, the charging control module 16 controls the switching module to switch the connection relationship between the voltage conversion module 11 and the plurality of charging interfaces so that the plurality of charging interfaces are completely separated, and the current flowing into the charging head 10 flows into the charging line 20 connected to the charging interface through the charging interface, and charges the electronic device connected to the charging line 20. Of course, the charging head 10 in the present embodiment can perform wireless charging on the electronic device when in the wireless charging mode, and the specific switching manner of the charging head 10 is as described above, which is not described in detail herein. Through this possible implementation manner, the user can selectively switch the charging mode of the charging head 10 according to his actual requirement, so as to improve the use experience of the user.
Embodiments of the present application also provide a method of wireless charging, which is applicable to the charging head 10 in any one embodiment or at least two embodiments described above.
Fig. 6 shows a flowchart 600 of a method for wireless charging according to an embodiment of the present application, and as shown in fig. 6, the method for wireless charging mainly includes the following steps.
S610: and the two interfaces of the exciting coil are respectively connected with the first end of the first charging interface of the charging head and the first end of the second charging interface of the charging head.
In a specific application, step S610 may be described according to a wireless charging operation schematic diagram of the charging head disclosed in the embodiment of the present application shown in fig. 7, specifically, first, two interfaces of the exciting coil, for example, the charging wire 20, are inserted into two charging interfaces of the plurality of charging interfaces of the charging head 10 described in the embodiment of the present application, and then, the plug portion of the charging head 10 is connected to the plug board. Of course, step S610 may also be performed by the circuit connection relationship shown in fig. 5a and 5b, and the specific implementation may be referred to the description of the charging head embodiment, which is not repeated herein.
S620: placing an electronic device having an induction coil over the excitation coil to charge a battery of the electronic device;
in a specific application, step S620 can be described with reference to fig. 7, specifically, when two interfaces of the exciting coil are connected to the charging interface of the charging head 10 and a current flows through the interfaces, the exciting coil generates an exciting magnetic field, and the electronic device with the induction coil 31 is placed above the exciting coil, so that an induced current with a direction opposite to that of the current in the exciting coil can be generated in the induction coil 31. It is to be understood here that the current direction in the excitation coil is always opposite to the current direction of the induced current generated in the induction coil 31.
Wherein the charging head mentioned in the flowchart 600 is the charging head described in at least one embodiment of fig. 1 to 5b described above.
Therefore, in the wireless charging method provided by the embodiment of the application, the two interfaces of the exciting coil are respectively connected with the first end of the first charging interface 141 of the charging head 10 and the first end of the second charging interface 142 of the charging head 10; the electronic device with the induction coil 31 is placed above the exciting coil to charge the battery of the electronic device, and the electronic device with the induction coil 31 may be placed on the charging head 10 with the exciting coil to charge the electronic device. Therefore, by adopting the scheme provided by the embodiment of the application, the problem that the electronic equipment needs to be provided with a special wireless charging base during wireless charging can be solved, and further, the wireless charging mode of the charging head 10 is utilized to charge different kinds of electronic equipment.
Fig. 8 shows a flowchart of a method of wireless charging according to an embodiment of the present application, and as shown in fig. 8, the method of wireless charging mainly includes the following steps.
S810: and the two interfaces of the exciting coil are respectively connected with the first end of the first charging interface of the charging head and the first end of the second charging interface of the charging head.
Step S810 may employ the description of step S610, which is not described herein.
S820: and switching the connection state between the voltage conversion module in the charging head and at least two charging interfaces through the switch module in the charging head so as to generate alternating current in the exciting coil.
In a specific application, step S820 may be described with reference to fig. 9a or 9b, specifically, when two interfaces of the exciting coil are connected to the charging interface of the charging head 10 and a current flows through the interfaces, the exciting coil generates an exciting magnetic field, an electronic device with an induction coil 31 is placed above the exciting coil, an induced current with a direction opposite to that of the exciting coil is generated in the induction coil 31, and when the charging control module 16 controls the switching frequency set in the switching module 13, the current directions of the first circuit and the second circuit of the charging head 10 are controlled, so that the current directions in the exciting coil are reciprocally switched at a specific frequency, and thus an alternating current can be generated in the exciting coil, and accordingly, the current directions in the induction coil 31 are also switched according to the switching frequency of the current directions in the exciting coil. For example, when the switching frequency of the switching module 13 is 10KHz, at this time, the current directions in the exciting coil and the induction coil 31 are each changed at a frequency of 10 KHz.
S830: an alternating magnetic field is generated by the alternating current to charge a battery of the electronic device.
In a specific application, step S830 may be described according to fig. 9a or fig. 9b, where the alternating current generates an alternating magnetic field through the exciting coil, and when the user places the electronic device on the exciting coil, an induced current occurs in the induction coil 31 of the electronic device, and the induced current can charge the battery of the electronic device through the charging control module 16, the charging system 32 and the battery module 33 of the rear end of the collecting electronic device.
In addition, the steps S820 to S830 may also adopt the related description of the step S620 in the embodiment of fig. 6, which is not repeated here.
Therefore, in the wireless charging method provided by the embodiment of the invention, the two interfaces of the exciting coil are respectively connected with the first end of the first charging interface 141 of the charging head 10 and the first end of the second charging interface 142 of the charging head; switching the connection state between the voltage conversion module 11 and at least two charging interfaces in the charging head 10 by means of the switching module 13 in the charging head 10 to generate an alternating current in the excitation coil; the alternating current is used for generating an alternating magnetic field to charge the battery of the electronic equipment, so that the problem that a special wireless charging base is required to be configured when the electronic equipment is wirelessly charged can be solved.
In the above possible wireless charging method, the exciting coil may be a coil-shaped charging wire 20 having two connected charging wire ends, the larger the diameter of the coil of the charging wire 20, the slower the charging speed is when the charging head 10 charges the electronic device, the smaller the diameter of the coil of the charging wire 20, and the faster the charging speed is when the charging head 10 charges the electronic device, that is, the diameter of the exciting coil is inversely related to the charging speed of the charging head 10, and it should be noted here that the two connected charging wire ends are located outside the exciting coil to ensure that the charging head 10 can charge the electronic device normally.
It should be understood that the charging head 10 provided in the embodiment of the present application not only can charge smart terminal products such as mobile phones, bluetooth headsets, glasses, watches, etc., but also can charge electronic devices (charging devices, remote controllers, etc.) having the induction coil 31.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (10)
1. A charging head, comprising:
a voltage conversion module;
the state detection module is connected with the voltage conversion module and used for detecting a charging mode of the charging head, wherein the charging mode comprises a wired charging mode and a wireless charging mode;
the switch module is connected with the state detection module or integrated with the state detection module into a whole and is used for switching the connection state between the voltage conversion module and at least two charging interfaces according to the charging mode;
the at least two charging interfaces are connected with the switch module and used for supplying power to a load;
the switching module switches the connection state between the voltage conversion module and at least two charging interfaces according to the charging mode, and the switching module comprises:
under the condition that the charging mode detected by the state detection module is wired charging, switching the connection state between the at least two charging interfaces into a state of complete isolation among a plurality of charging interfaces;
and under the condition that the charging mode detected by the state detection module is wireless charging, switching the circuit connection relation between the at least two charging interfaces, so that the charging head and a charging wire inserted into the charging interfaces form a closed loop to serve as an exciting coil.
2. The charging head according to claim 1, wherein a charging mode of the charging head is the wired charging mode in a case where a detection value of the state detection module is greater than a first threshold value;
and under the condition that the detection value of the state detection module is smaller than a second threshold value, the charging mode of the charging head is the wireless charging mode, and the first threshold value is larger than the second threshold value.
3. The charging head of claim 1, wherein the voltage conversion module comprises:
the first voltage conversion module is connected with a first loop between the first voltage conversion module and the at least two charging interfaces;
the second voltage conversion module is connected with a second loop between the second voltage conversion module and the at least two charging interfaces;
the switch module is used for controlling the first loop and the second loop to be conducted under the condition that the charging mode detected by the state detection module is a wireless charging mode, and the current directions in the first loop and the second loop are consistent.
4. A charging head according to claim 3, wherein the first circuit is: the first output end of the first voltage conversion module, the first end of a first charging interface of the at least two charging interfaces, the first end of a second charging interface of the at least two charging interfaces and the first grounding end of the first voltage conversion module are sequentially connected to form a loop;
the second loop is as follows: the first output end of the second voltage conversion module, the grounding end of the first charging interface, the grounding end of the second charging interface and the second grounding end of the second voltage conversion module are sequentially connected to form a loop.
5. A charging head according to claim 3, wherein the first circuit is: the first output end of the first voltage conversion module, the grounding end of the second charging interface of the at least two charging interfaces, the grounding end of the first charging interface of the at least two charging interfaces and the first grounding end of the first voltage conversion module are sequentially connected to form a loop;
the second loop is as follows: the first output end of the second voltage conversion module, the first end of the second charging interface, the first end of the first charging interface and the second grounding end of the second voltage conversion module are sequentially connected to form a loop.
6. The charging head of claim 1, wherein the voltage conversion module comprises:
the first voltage conversion module is connected with a third loop between the first voltage conversion module and a first charging interface of the at least two charging interfaces;
the second voltage conversion module is connected with a fourth loop with a second charging interface in the at least two charging interfaces;
the switch module is used for controlling the third loop and/or the fourth loop to be conducted under the condition that the charging mode detected by the state detection module is a wired charging mode.
7. The charging head of claim 1, wherein the status detection module is at least one of an impedance detection module, a voltage detection module, and a current detection module.
8. A method of wireless charging, comprising:
connecting two interfaces of the exciting coil with a first end of a first charging interface of the charging head and a first end of a second charging interface of the charging head respectively;
placing an electronic device having an induction coil over the excitation coil to charge a battery of the electronic device;
wherein the charging head is a charging head according to any one or more of claims 1 to 7.
9. The method of claim 8, wherein the placing an electronic device having an induction coil over the excitation coil to charge a battery of the electronic device comprises:
switching, by the in-charging-head switch module, a connection state between the in-charging-head voltage conversion module and at least two charging interfaces to generate an alternating current in the excitation coil;
an alternating magnetic field is generated by the alternating current to charge a battery of the electronic device.
10. The method of claim 8, wherein the excitation coil is a coil-like charging wire having two communicating charging stubs, the two communicating charging stubs being located outside the excitation coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110106658.0A CN112737063B (en) | 2021-01-26 | 2021-01-26 | Charging head and wireless charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110106658.0A CN112737063B (en) | 2021-01-26 | 2021-01-26 | Charging head and wireless charging method |
Publications (2)
| Publication Number | Publication Date |
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| CN112737063A CN112737063A (en) | 2021-04-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019105361A1 (en) * | 2017-12-01 | 2019-06-06 | 珠海市魅族科技有限公司 | Wireless charging circuit, system and method, and terminal device |
| CN110365070A (en) * | 2019-04-29 | 2019-10-22 | 珠海市魅族科技有限公司 | A kind of charging circuit, electronic equipment and charging method |
| WO2020169010A1 (en) * | 2019-02-23 | 2020-08-27 | 华为技术有限公司 | Charging system and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109066882A (en) * | 2018-09-03 | 2018-12-21 | Oppo广东移动通信有限公司 | Charging circuit and electronic equipment |
| CN109066884A (en) * | 2018-09-03 | 2018-12-21 | Oppo广东移动通信有限公司 | Charging circuit and electronic equipment |
| CN111725858A (en) * | 2019-05-19 | 2020-09-29 | 华乙半导体(深圳)有限公司 | Power adapter and charging method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019105361A1 (en) * | 2017-12-01 | 2019-06-06 | 珠海市魅族科技有限公司 | Wireless charging circuit, system and method, and terminal device |
| WO2020169010A1 (en) * | 2019-02-23 | 2020-08-27 | 华为技术有限公司 | Charging system and electronic device |
| CN110365070A (en) * | 2019-04-29 | 2019-10-22 | 珠海市魅族科技有限公司 | A kind of charging circuit, electronic equipment and charging method |
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