CN113964953A - Wireless charging transmitter, wireless charging method, wireless charging device, wireless charging medium and electronic product - Google Patents
Wireless charging transmitter, wireless charging method, wireless charging device, wireless charging medium and electronic product Download PDFInfo
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
- H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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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
Abstract
The application discloses wireless transmitter that charges relates to the wireless field of charging, the wireless transmitter that charges that this application provided, microcontroller accessible control the switch that corresponds the group according to the parameter of the equipment of waiting to charge switch on or break off, change the coil number of access circuit, select suitable coil number for waiting to charge equipment, the wireless transmitter that charges that this application provided can charge for different equipment of waiting to charge through selecting suitable coil number, consequently the different wireless charging equipment of adaptation. In addition, the application also provides a wireless charging method which is applied to the wireless charging transmitter. The application also provides a device and a computer readable storage medium, which correspond to the method and have the same effects. The application also provides a wireless electronic product that charges, including above-mentioned wireless transmitter that charges, the effect is the same as above.
Description
Technical Field
The present disclosure relates to wireless charging, and more particularly, to a wireless charging transmitter, a wireless charging method, a wireless charging device, a wireless charging medium, and an electronic product.
Background
The wireless charging transmitter is more and more widely used for portable electronic equipment such as mobile terminals, MP3, digital cameras and notebook computers, and compared with the traditional cable connection type charging mode which is easy to damage due to frequent plugging, the wireless charging transmitter has the remarkable advantages of being convenient to carry, capable of moving freely, free of wiring connection and the like. Currently, a wireless charging transmitter can charge different kinds of devices.
Although a wireless charging transmitter can charge different types of devices, because the wireless charging coils of various devices tend to be diversified, in order to make the wireless charging transmitter and the wireless charging device have good adaptability when charging, a wireless charging device needs to be equipped with a wireless charging transmitter.
Therefore, how to adapt the wireless charging transmitter to different wireless charging devices is a technical problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
An object of the present application is to provide an apparatus for adapting a wireless charging transmitter to different wireless charging devices.
In order to solve the above technical problem, the present application provides a wireless charging transmitter, including:
the microcontroller, at least two groups of coils, at least one group of switches; the group of switches at least correspond to the group of coils, each group of coils comprises a positive coil and a negative coil, each group of switches comprises a positive switch and a negative switch, the positive switches are connected with the corresponding positive coils, and the negative switches are connected with the corresponding negative coils;
the microcontroller is connected with the switches and used for controlling the on-off of the switches of the corresponding group according to the parameters of the equipment to be charged so as to change the number of coils connected into the circuit.
Preferably, the wireless charging transmitter further comprises: and the power supply connecting device is used for connecting an external power supply and supplying power to the wireless charging transmitter.
Preferably, the wireless transmitter that charges, external power supply is direct current external power supply, still includes: the wireless charging transmitting device is connected with the power supply connecting device and is used for converting direct current into alternating current; the wireless charging transmitting device is connected with the coil and used for transmitting the alternating current to the coil; the wireless charging transmitting device is connected with the microcontroller and used for realizing conversion of a wireless charging protocol.
Preferably, the wireless charging transmitter further comprises: the current monitoring device is connected with the power supply connecting device and is used for measuring the current supplied by the power supply connecting device to the wireless charging transmitting device; the current monitoring device is connected with the microcontroller and is used for transmitting the measured current data to the microcontroller.
Preferably, the wireless charging transmitter further comprises: and the communication upgrading device is connected with the microcontroller and is used for receiving the information of the wireless charging equipment and upgrading the wireless charging transmitter.
Preferably, the wireless charging transmitter, at least one set of the switches is in the conducting state.
The application also provides a wireless charging method, which is applied to the wireless charging transmitter,
the wireless charging transmitter includes: the microcontroller, at least two groups of coils, at least one group of switches; the group of switches at least correspond to the group of coils, each group of coils comprises a positive coil and a negative coil, each group of switches comprises a positive switch and a negative switch, the positive switches are connected with the corresponding positive coils, and the negative switches are connected with the corresponding negative coils; the microcontroller is connected with the switch;
the method comprises the following steps:
judging whether the equipment to be charged is accessed;
if so, acquiring parameters of the equipment to be charged;
and controlling the on or off of the switches of the corresponding group according to the parameters of the equipment to be charged so as to change the number of coils connected into the circuit.
The application also provides a wireless charging device, is applied to the wireless transmitter that charges, the wireless transmitter that charges includes: the microcontroller, at least two groups of coils, at least one group of switches; the group of switches at least correspond to the group of coils, each group of coils comprises a positive coil and a negative coil, each group of switches comprises a positive switch and a negative switch, the positive switches are connected with the corresponding positive coils, and the negative switches are connected with the corresponding negative coils; the microcontroller is connected with the switch; the device comprises:
the judging module is used for judging whether the equipment to be charged is accessed, and if so, the obtaining module is triggered;
the acquisition module is used for acquiring parameters of the equipment to be charged and triggering the control module;
and the control module is used for controlling the on/off of the switches of the corresponding group according to the parameters of the equipment to be charged so as to change the number of coils connected into the circuit.
The present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described wireless charging method.
The application also provides a wireless electronic product that charges, including above-mentioned wireless transmitter that charges.
The wireless transmitter that charges that this application provided, microcontroller accessible come control to correspond the group according to the parameter of the equipment of waiting to charge switch on or break off of switch, change the coil number of access circuit, select suitable coil number to charge for the equipment of waiting to charge, the wireless transmitter that charges that this application provided can be through selecting suitable coil number to charge for the different equipment of waiting to charge, consequently the different wireless charging equipment of adaptation.
In addition, the application also provides a wireless charging method, which is applied to the wireless charging transmitter, and the parameters of the equipment to be charged are obtained by judging whether the equipment to be charged is accessed, and the on/off of the corresponding group of switches is controlled according to the parameters of the equipment to be charged so as to change the number of coils accessed to a circuit. Different devices to be charged can be charged by selecting the appropriate number of coils, thus adapting to different wireless charging devices.
In addition, the application also provides a device and a computer readable storage medium, which correspond to the method and have the same effects.
In addition, this application still provides a wireless electronic product who charges, including above-mentioned wireless transmitter that charges, the effect is the same as above.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic diagram of a wireless charging transmitter provided herein;
FIG. 2 is a schematic diagram of the connection of the coil and the switch provided in the present application;
fig. 3 is a schematic diagram of another coil and switch connection provided in the present application.
Fig. 4 is a flowchart of a wireless charging method provided in the present application;
fig. 5 is a schematic diagram of a wireless charging device provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide a wireless charging transmitter capable of adapting to different wireless charging devices.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a wireless charging transmitter provided in the present application.
The embodiment of the application provides a wireless transmitter that charges, includes:
a microcontroller 11, at least two sets of coils 12, at least one set of switches 13; the group of switches 13 at least correspond to the group of coils 12, the group of coils 12 comprises a positive electrode coil and a negative electrode coil, the group of switches 13 comprises a positive electrode switch and a negative electrode switch, the positive electrode switch is connected with the corresponding positive electrode coil, and the negative electrode switch is connected with the corresponding negative electrode coil;
the microcontroller 11 is connected to the switches 13, and is configured to control the switches 13 of the corresponding group to be turned on or off according to parameters of the device to be charged, so as to change the number of coils 12 connected to the circuit.
The wireless charging technology mainly adopts an electromagnetic induction principle, energy is transmitted by coupling of energy through coils, corresponding coils are used for transmitting and receiving induced alternating current signals respectively at a transmitting end of a wireless charging transmitter and a receiving end of equipment to be charged, so that a technology for charging is realized, when electric energy is input into the coil of the transmitting end, a magnetic field is generated, the changed magnetic field can generate a changed electric field, the changed electric field can generate a changed magnetic field, the magnetic field induces the coil of the receiving end, so that current is generated, the magnetic field changing inside the coil of the receiving end generates induced voltage, and the charging process is completed. When the wireless charging transmitter is used, the efficiency of wireless charging is higher and higher when the coil shape tends to be approximate between the wireless charging transmitter and the receiving device.
The wireless charging transmitter provided by the embodiment is used for adapting to different wireless charging devices by changing the number of the coils 12 connected to the charging circuit when the wireless charging transmitter performs wireless charging.
It should be noted that, in the coil 12 mentioned in this embodiment, specifically, a group of coils 12 may be a circle of energizable wire, or may be multiple circles of energizable wires, and this embodiment is not particularly limited. The switches 13 mentioned in this embodiment are present in groups, and a group of switches 13 includes a positive switch and a negative switch, the positive switch is connected to the corresponding positive coil, the negative switch is connected to the corresponding negative coil, the positive switch and the negative switch are turned off at the same time, the group of coils 12 corresponding to the group of switches 13 is turned off, the positive switch and the negative switch are turned on at the same time, and the group of coils 12 corresponding to the group of switches 13 is turned on.
In addition, the fact that the set of switches 13 corresponds to at least one set of coils 12 means that, in practical design, one set of switches 13 corresponds to one set of coils 12, and one set of switches 13 corresponds to multiple sets of coils 12, for example, one set of switches 13 corresponds to two sets of coils 12, when the set of switches 13 are simultaneously turned on, the corresponding two sets of coils 12 are turned on, and when the set of switches 13 are simultaneously turned off, the corresponding two sets of coils 12 are turned off.
In the embodiment, the number of the coils 12 is at least two, the number of the switches 13 is at least one, specifically, when the number of the coils 12 is two, and the number of the switches 13 is one, the switches 13 control one of the coils 12, when the switches 13 are on, the two coils 12 are all connected, and when the switches 13 are off, only the other coil 12 is connected, so as to change the number of the coils 12 connected to the charging circuit.
The coil 12 and the switch 13 mentioned in this embodiment may be soldered on the PCB, or may be a non-soldered coil assembly. The material, thickness and number of the coils 12 are not limited in this embodiment, and the coil 12 may be designed according to actual circumstances. The present embodiment is not limited to the type, number, mounting position, initial state, and the like of the switches 13, and may be designed according to actual needs.
Fig. 2 is a schematic diagram of a connection between a coil and a switch provided in the present application, and fig. 3 is a schematic diagram of a connection between another coil and a switch provided in the present application. As shown in FIG. 2, VCHG + and VCHG + are current input terminals, S1+, S2+ … Sn + are positive switches, S1-, S2- … Sn-are negative switches, L1+, L2+ … Ln + are positive coils, and L1-, L2- … Ln-are negative coils. Specifically, when the switch S1+, the switch S1 "are turned on and the other switches are turned off, the coil L1+, the coil L1" are turned on, that is, the coil 12 of the first turn is connected to the circuit.
In addition, the present embodiment does not limit the specific type and model of the microcontroller 11, as long as the switch 13 of the corresponding group is controlled to be turned on or off according to the parameters of the device to be charged, so as to change the number of the coils 12 connected to the circuit.
In this embodiment, it is not limited whether the external power source of the wireless charging transmitter is direct current or alternating current, and since only alternating current can generate a changing magnetic field in the coil to generate an electromagnetic induction phenomenon, the current input into the coil 12 of the wireless charging transmitter should be alternating current. The wireless charging transmitter can be directly connected with an external alternating current power supply, and can also be connected with an external direct current power supply, and direct current power is required to be converted into alternating current power and then transmitted to the coil 12.
The microcontroller 11 mentioned in this embodiment is connected to the switch 13, and is configured to control the on and off of the switch 13, and indirectly control the number of the coil 12 sets connected to the charging circuit. The microcontroller 11 selects an appropriate number of coil 12 sets connected to the charging circuit according to the parameters of the device to be charged, and the embodiment does not limit the concrete expression form of the parameters of the device to be charged.
Specifically, this embodiment provides a method, where ID information of different devices to be charged and data of corresponding wireless charging access coil parameters are stored in advance in a database of the microcontroller 11, and when a device to be charged is accessed, the microcontroller 11 calls the corresponding wireless charging access coil parameter data according to the ID of the device to be charged, and controls the switch 13 to be turned off and on according to the parameter, so that the number of coils 12 accessed to the charging circuit meets the parameter requirement. In addition, the microcontroller 11 may identify the ID data of the device to be charged by transmitting a pulse signal and receiving an identification packet signal returned by the device to be charged, or may obtain the ID data of the device to be charged by directly inputting the identification information of the device to be charged by the user. The present embodiment does not limit whether the initial state of the switch 13 is on, and the switch may be designed according to actual needs.
Specifically, the present embodiment further provides another method, known from the electromagnetic induction principle, that the current magnitude of the coil 12 in the wireless charging transmitter is affected by the current magnitude of the coil in the device to be charged, when the device to be charged is connected, the microcontroller 11 may obtain the current magnitude of the coil 12 in the wireless charging transmitter, change the number of the coils 12 connected to the charging circuit by changing the state of the switch 13, and find the best matching charging parameter to charge the device to be charged by detecting the change in the current magnitude. In addition, the initial state of the coil 12 is not limited in this embodiment, that is, the initial state of the coil 12 may be a conducting state, and the current data may be directly obtained after the device to be charged is connected, or the default parameter control switch 13 may be selected to be conducting after the device to be charged is detected to be connected, and then the current data detection is performed. The embodiment also does not limit how the microcontroller 11 detects whether the device to be charged is connected, for example, a pressure sensor is provided, and when a pressure signal is detected, it indicates that the device to be charged is connected; or the user sends an instruction, and the instruction represents the access of the equipment to be charged; the initial state of the coil 12 may be a conducting state, and when the current generated in the coil 12 is detected, it indicates that the device to be charged is connected. In addition, the current in the detection coil 12 mentioned in the present embodiment may be the current magnitude in the direct detection coil 12; the magnitude of the current input to the coil 12, the magnitude of the alternating current before input to the coil 12, or the magnitude of the direct current converted into the alternating current may be detected.
In addition, this embodiment also provides a preferable scheme, after the wireless charging transmitter adjusts to the appropriate coil 12 parameter to charge the device to be charged, the coil 12 parameter is matched and stored with the ID data of the device to be charged, and the following wireless charging can be directly invoked, so as to improve the charging efficiency.
The wireless transmitter that charges that this application provided, microcontroller 11 accessible control according to the parameter of the equipment of waiting to charge correspond the group switch 13 switches on or break off, changes the coil 12 quantity of access circuit, selects suitable coil 12 quantity to charge for the equipment of waiting to charge, and the wireless transmitter that charges that this application provided can be through selecting suitable coil 12 quantity to charge for the different equipment of waiting to charge, therefore the different wireless charging equipment of adaptation.
According to the above embodiments, the present embodiment provides a power connection device 14, and the power connection device 14 is used for connecting an external power source to provide power for a wireless charging transmitter.
According to the above embodiment, the external power source of the wireless charging transmitter may be a direct current power source or an alternating current power source, and the power connection device 14 provided in this embodiment is used for connecting the external power source to provide power for the wireless charging transmitter. The interface can be a USB interface, an alternating current power supply interface and the like, and can be selected according to actual design.
According to the above embodiment, when the dc power supply is selected as the external power supply in actual use, this embodiment provides a preferable scheme, further including: the wireless charging transmitting device 15 is connected with the power supply connecting device 14, and is used for converting direct current into alternating current; the wireless charging transmitting device 15 is connected with the coil 12 and used for transmitting alternating current to the coil 12; the wireless charging transmitting device 15 is connected with the microcontroller 11 and is used for realizing conversion of a wireless charging protocol.
When the external power source is a dc power source, the power connection device 14 is connected to the external power source to provide power for the wireless charging transmitter, and since only ac power can generate a changing magnetic field in the coil 12 to generate an electromagnetic induction phenomenon, the current input into the coil 12 of the wireless charging transmitter should be ac power, and dc power received by the power connection device 14 needs to be converted into ac power to be transmitted to the coil 12.
The wireless charging transmitter 15 provided in this embodiment is connected to the power connector 14, and is configured to convert a direct current into an alternating current, and the wireless charging transmitter 15 is connected to the coil 12, and transmits the converted alternating current to the coil 12, so as to generate a changing magnetic field in the coil 12, and generate an electromagnetic induction phenomenon, thereby implementing wireless charging.
In addition, the wireless charging transmitting device 15 is further connected with the microcontroller 11 and used for realizing conversion of a wireless charging protocol, and as various wireless charging protocols exist in the wireless charging field, the microcontroller 11 controls the wireless charging transmitting device 15 to realize conversion of the wireless charging protocol according to different applicable protocols of the access equipment.
According to the above embodiment, when the device to be charged is connected, the microcontroller 11 may obtain the current of the coil 12 in the wireless charging transmitter, and change the number of the coils 12 connected to the charging circuit by changing the state of the switch 13, and by detecting the change of the current, find the best matching charging parameter to charge the device to be charged, and this embodiment provides a preferred scheme, and the wireless charging transmitter further includes: the current monitoring device 16 is connected with the power supply connecting device 14 and is used for measuring the current supplied by the power supply connecting device 14 to the wireless charging transmitting device 15; the current monitoring device 16 is connected to the microcontroller 11 for transmitting measured current data to the microcontroller 11.
The current detection device mentioned in this embodiment is used for detecting the direct current input into the wireless charging transmitter 15 by the power supply connection device 14, because the magnitude of the current in the coil 12 of the wireless charging transmitter is influenced by the magnitude of the current in the coil of the device to be charged, and the magnitude of the direct current input into the wireless charging device is influenced by the magnitude of the current in the coil 12 of the wireless charging transmitter, the magnitude of the current in the device to be charged can be judged by detecting the magnitude change of the direct current output by the current connection device, the current monitoring device 16 is connected with the microcontroller 11, the measured current data is transmitted to the microcontroller 11, and the microcontroller 11 judges the magnitude change of the current.
According to the electromagnetic induction principle, the current magnitude in the coil 12 of the wireless charging transmitter is inversely proportional to the current magnitude of the coil in the device to be charged, that is, the smaller the current of the coil in the device to be charged is, the larger the current of the coil 12 in the wireless charging transmitter is, and conversely, the larger the current of the coil in the device to be charged is, the smaller the current of the coil 12 in the wireless charging transmitter is. Thus, the device to be charged achieves optimal charging efficiency when it is detected that the current in the wireless charging transmitter reaches a minimum value.
Specifically, when the device to be charged is connected, the current monitoring device 16 detects the current output by the power connection device 14, and transmits current data to the microcontroller 11, the microcontroller 11 controls the switch 13 to be turned off or on after acquiring the current data so as to control the decrease or increase of the number of the connected coils 12, the current monitoring device 16 transmits the current data after the change of the number of the coils 12 to the microcontroller 11, the microcontroller 11 controls the increase or decrease of the number of the connected coils 12 according to the change of the current size, if the current becomes smaller, the number of the connected coils 12 is continuously changed, if the current does not become smaller, the last connected coil 12 parameter makes the current size in the wireless charging transmitter reach the minimum, so the last connected coil 12 parameter is selected as the optimal parameter, which indicates that the current connected parameter reaches the optimal, the device to be charged is started to be charged.
It should be noted that the current monitoring device 16 is a device for monitoring the magnitude of the current, and the current detection device is not limited to be used in any form in this embodiment, and only the current data in the acquisition circuit needs to be obtained. Such as a current divider, an ammeter, a multimeter, etc., and the present embodiment does not limit the connection manner of the current detection device.
According to the above embodiments, this embodiment provides a preferable scheme, the wireless charging transmitter, further comprising: and the communication upgrading device 17 is connected with the microcontroller 11 and used for receiving the information of the wireless charging equipment and upgrading the wireless charging transmitter.
The communication upgrading device 17 mentioned in this embodiment is connected to the microcontroller 11, and can complete the importing of the device information and the upgrading of the wireless charging transmitter through communication transmission by being connected to the personal computer device. For example, if the wireless charging transmitter 15 needs to charge a new wireless charging device and knows the optimal coil 12 parameter required by the wireless charging device during wireless charging, the communication upgrading device 17 can be connected to the personal computer device to transmit the known optimal coil 12 parameter required by the wireless charging device during wireless charging to the communication upgrading device 17, so as to directly call the optimal coil 12 parameter during subsequent wireless charging, thereby avoiding the need to perform coil 12 access debugging again. In addition, the wireless charging transmitter can be upgraded in terms of software through the communication upgrading device 17, for example, the communication upgrading device 17 updates the access control method of the adjusting coil 12.
According to the above embodiments, this embodiment provides a preferable scheme that the initial state of at least one set of switches 13 of the wireless charging transmitter is a conducting state.
In this embodiment, the initial state of at least one set of switches 13 is a conducting state, and the initial state refers to a state of the switches 13 when the wireless charging transmitter is powered on by an external power source, that is, at least one set of coils 12 is in a conducting state when the wireless charging transmitter is powered on by an external power source.
Specifically, when the wireless charging transmitter is connected with an external power supply, at least one group of switches 13 is in a conducting state to conduct the coils 12, at this time, alternating current is introduced into the coils 12 in the wireless charging transmitter to generate a changing magnetic field, if equipment to be charged is connected at this time, the changing magnetic field can generate a changing electric field in the coils of the equipment to be charged, the equipment to be charged starts to be charged, at this time, the microcontroller 11 can call data parameters of the number of the corresponding wireless charging access coils 12 by acquiring the ID of the equipment to be charged, and controls the disconnection and conduction of the switches 13 according to the parameters, so that the number of the coils 12 connected to the charging circuit meets the parameter requirements; the on or off of the switch 13 can be controlled to change the access number of the coil 12, and the accessed coil 12 parameters can be optimized through the acquired current data change.
In the scheme provided by this embodiment, at least one group of switches 13 is in a conducting state, so that the wireless charging transmitter can enter a working state when an external power supply is connected, and the working efficiency is improved.
The embodiment of the application provides a wireless charging method, which is applied to a wireless charging transmitter,
the wireless transmitter that charges includes: a microcontroller 11, at least two sets of coils 12, at least one set of switches 13; the group of switches 13 at least correspond to the group of coils 12, the group of coils 12 comprises a positive electrode coil and a negative electrode coil, the group of switches 13 comprises a positive electrode switch and a negative electrode switch, the positive electrode switch is connected with the corresponding positive electrode coil, and the negative electrode switch is connected with the corresponding negative electrode coil; the microcontroller 11 is connected with a switch 13;
fig. 2 is a flowchart of a wireless charging method provided in the present application, and as shown in fig. 2, the wireless charging method includes:
s41: judging whether the equipment to be charged is accessed;
s42: if so, acquiring parameters of the equipment to be charged;
s43: and controlling the switch 13 of the corresponding group to be switched on or off according to the parameters of the equipment to be charged so as to change the number of the coils 12 switched into the circuit.
The wireless charging transmitter mentioned in this embodiment corresponds to the wireless charging transmitter mentioned in the above embodiments, and details of this embodiment are not repeated.
Step S41 is to determine whether the device to be charged is to be connected, and the present embodiment does not limit how to determine whether the device to be charged is to be connected, and the present embodiment is designed according to actual situations. For example, a pressure sensor is arranged, and when a pressure signal is detected, it is indicated that the device to be charged is connected; or the user sends an instruction, and the instruction represents the access of the equipment to be charged; the initial state of the coil 12 may be a conducting state, and when the current generated in the coil 12 is detected, it indicates that the device to be charged is connected. The present embodiment provides a preferable scheme, the microcontroller 11 uses the coil 12 access parameter of the default parameter to intermittently send out the ping signal to detect whether the charging device is to be accessed.
Step S42 acquires a parameter of the device to be charged, which is not specifically limited in the present embodiment.
For example, the parameter of the device to be charged mentioned in this embodiment may refer to ID data of the device to be charged, specifically, the wireless charging transmitter queries the ID of the receiving device, and if the device is a saved device, the saved parameter is called to control the number of accesses of the coil 12 to perform wireless charging. The microcontroller 11 may identify the ID data of the device to be charged by transmitting a pulse signal and receiving an identification packet signal returned by the device to be charged, or may obtain the ID data of the device to be charged by directly inputting device identification information by a user. In addition, after the appropriate coil 12 parameters are selected to charge the equipment to be charged, the coil 12 parameters and the ID data of the equipment to be charged can be matched and stored, and can be directly called when wireless charging is carried out next time, so that the charging efficiency is improved.
For example, the parameter of the device to be charged mentioned in this embodiment may refer to current data returned by the coil 12 of the wireless charging transmitter after the device to be charged is connected, and as can be known from the principle of electromagnetic induction, the current magnitude of the coil 12 in the wireless charging transmitter is affected by the current magnitude of the coil in the device to be charged, so that the connection number of the coil 12 can be adjusted by monitoring the change in the magnitude of the current data returned by the coil 12.
Step S43 controls the on or off of the corresponding group of switches 13 according to the parameters of the device to be charged, so as to change the number of coils 12 connected into the circuit.
Specifically, if the parameter of the device to be charged is the ID data of the device to be charged, the stored parameter is called to control the number of the coils 12 to be accessed for wireless charging; if the parameter of the device to be charged is the current data returned by the coil 12 of the wireless charging transmitter after the device to be charged is accessed, the number of the coils 12 accessed to the charging circuit is changed by changing the state of the switch 13, the change of the current is detected, if the current becomes smaller, the access number of the coils 12 is continuously changed, and if the current does not become smaller, the last accessed coil 12 parameter enables the current in the wireless charging transmitter to reach the minimum, so the last accessed coil 12 parameter is selected as the optimal parameter to charge the device to be charged.
The wireless charging method provided by the embodiment is applied to a wireless charging transmitter, the microcontroller 11 can control the switch 13 of the corresponding group to be turned on or off according to the parameters of the device to be charged, so as to change the number of the coils 12 connected to the circuit, and select the appropriate number of the coils 12 to charge the device to be charged.
In the foregoing embodiments, the wireless charging method is described in detail, and the present application also provides embodiments corresponding to the wireless charging device.
The embodiment provides a wireless charging device, is applied to wireless transmitter that charges, and wireless transmitter that charges includes: a microcontroller 11, at least two sets of coils 12, at least one set of switches 13; the group of switches 13 at least correspond to the group of coils 12, the group of coils 12 comprises a positive electrode coil and a negative electrode coil, the group of switches 13 comprises a positive electrode switch and a negative electrode switch, the positive electrode switch is connected with the corresponding positive electrode coil, and the negative electrode switch is connected with the corresponding negative electrode coil; the microcontroller 11 is connected with a switch 13;
fig. 3 is a schematic view of a wireless charging device provided in the present application, and as shown in fig. 3, the wireless charging device includes:
the judging module 51 is configured to judge whether a device to be charged is accessed, and if yes, trigger the obtaining module 52;
an obtaining module 52, configured to obtain parameters of a device to be charged, and trigger a control module 53;
and the control module 53 is used for controlling the on/off of the switches 13 of the corresponding group according to the parameters of the equipment to be charged so as to change the number of the coils 12 connected into the circuit.
The determining module 51 determines whether a device to be charged is to be accessed, and the embodiment does not limit how to determine whether a device to be charged is to be accessed, and is designed according to actual situations. For example, a pressure sensor is arranged, and when a pressure signal is detected, it is indicated that the device to be charged is connected; or the user sends an instruction, and the instruction represents the access of the equipment to be charged; the initial state of the coil 12 may be a conducting state, and when the current generated in the coil 12 is detected, it indicates that the device to be charged is connected. If so, the acquisition module 52 is triggered.
The obtaining module 52 obtains a parameter of the device to be charged, and the embodiment does not specifically limit the parameter. For example, the ID data of the device to be charged may be referred to, specifically, the wireless charging transmitter queries the ID of the receiving device, and if the device is a saved device, the saved parameter is called to control the number of accesses of the coil 12 to perform wireless charging. The microcontroller 11 can identify the ID data of the device to be charged by transmitting a pulse signal and receiving an identification packet signal returned by the device to be charged, or can acquire the ID data of the device to be charged by directly inputting device identification information by a user; it may also refer to the current data returned by the wireless charging transmitter coil 12 after the device to be charged is accessed. The acquisition module 52 acquires parameters of the device to be charged and triggers the control module 53.
The control module 53 controls the on or off of the switches 13 of the corresponding group according to the parameters of the device to be charged, so as to change the number of coils 12 connected into the circuit. If the parameters of the equipment to be charged are ID data of the equipment to be charged, calling the stored parameters to control the access number of the coil 12 to carry out wireless charging; if the parameter of the device to be charged is the current data returned by the coil 12 of the wireless charging transmitter after the device to be charged is accessed, according to the electromagnetic induction principle, the current magnitude of the coil 12 in the wireless charging transmitter is influenced by the current magnitude of the coil in the device to be charged, so that the access number of the coil 12 can be adjusted by monitoring the change of the magnitude of the current data returned by the coil 12, and the most matched charging parameter is selected to charge the device to be charged.
The wireless charging device that this embodiment provided is applied to wireless charging transmitter, and microcontroller 11 accessible controls corresponding group according to the parameter of the equipment of waiting to charge switch 13's switching on or disconnection, changes the coil 12 quantity of access circuit, selects suitable coil 12 quantity to charge for the equipment of waiting to charge, and the wireless charging transmitter that this application provided can charge for different equipment of waiting to charge through selecting suitable coil 12 quantity, therefore the different wireless charging equipment of adaptation.
The application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps recited in the above-described wireless charging method embodiments.
It is to be understood that if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods described in the embodiments of the present application, or all or part of the technical solutions. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk. In the computer-readable storage medium provided by this embodiment, for implementing the above-mentioned wireless charging method, the microcontroller 11 may change the number of coils 12 connected to the circuit by controlling the on or off of the corresponding group of the switches 13 according to the parameter of the device to be charged, and select an appropriate number of coils 12 to charge the device to be charged.
Finally, the present embodiment provides a wireless charging electronic product, including the wireless charging transmitter mentioned in the above embodiments.
The electronic product mentioned in this embodiment includes the wireless charging transmitter mentioned in the above embodiment and an electronic device that can be used for the wireless charging transmitter, such as a mobile phone, MP3, a notebook computer, or an electric toothbrush.
The wireless charging electronic product provided by the embodiment comprises the wireless charging transmitter mentioned in the above embodiment. The microcontroller 11 of electronic product accessible is according to the parameter of the equipment that waits to charge to control the switch 13 of corresponding group switches on or break off, changes the coil 12 quantity of access circuit, selects suitable coil 12 quantity to charge for the equipment that waits to charge, and the wireless transmitter that charges that this application provided can be through selecting suitable coil 12 quantity to charge for different equipment that waits to charge, therefore the different wireless charging equipment of adaptation.
The wireless charging transmitter, the wireless charging method, the wireless charging device, the wireless charging medium and the electronic product provided by the application are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A wireless charging transmitter, comprising:
the microcontroller, at least two groups of coils, at least one group of switches; the group of switches at least correspond to the group of coils, each group of coils comprises a positive coil and a negative coil, each group of switches comprises a positive switch and a negative switch, the positive switches are connected with the corresponding positive coils, and the negative switches are connected with the corresponding negative coils;
the microcontroller is connected with the switches and used for controlling the on-off of the switches of the corresponding group according to the parameters of the equipment to be charged so as to change the number of coils connected into the circuit.
2. The wireless charging transmitter of claim 1, further comprising: and the power supply connecting device is used for connecting an external power supply and supplying power to the wireless charging transmitter.
3. The wireless charging transmitter of claim 2, wherein the external power source is a dc external power source, further comprising: the wireless charging transmitting device is connected with the power supply connecting device and is used for converting direct current into alternating current; the wireless charging transmitting device is connected with the coil and used for transmitting the alternating current to the coil; the wireless charging transmitting device is connected with the microcontroller and used for realizing conversion of a wireless charging protocol.
4. The wireless charging transmitter of claim 3, further comprising: the current monitoring device is connected with the power supply connecting device and is used for measuring the current supplied by the power supply connecting device to the wireless charging transmitting device; the current monitoring device is connected with the microcontroller and is used for transmitting the measured current data to the microcontroller.
5. The wireless charging transmitter of claim 4, further comprising: and the communication upgrading device is connected with the microcontroller and is used for receiving the information of the wireless charging equipment and upgrading the wireless charging transmitter.
6. The wireless charging transmitter of any one of claims 1 to 5, wherein the initial state of at least one set of the switches is a conducting state.
7. A wireless charging method is characterized in that the method is applied to a wireless charging transmitter,
the wireless charging transmitter includes: the microcontroller, at least two groups of coils, at least one group of switches; the group of switches at least correspond to the group of coils, each group of coils comprises a positive coil and a negative coil, each group of switches comprises a positive switch and a negative switch, the positive switches are connected with the corresponding positive coils, and the negative switches are connected with the corresponding negative coils; the microcontroller is connected with the switch;
the method comprises the following steps:
judging whether the equipment to be charged is accessed;
if so, acquiring parameters of the equipment to be charged;
and controlling the on or off of the switches of the corresponding group according to the parameters of the equipment to be charged so as to change the number of coils connected into the circuit.
8. A wireless charging device, applied to a wireless charging transmitter, the wireless charging transmitter comprising: the microcontroller, at least two groups of coils, at least one group of switches; the group of switches at least correspond to the group of coils, each group of coils comprises a positive coil and a negative coil, each group of switches comprises a positive switch and a negative switch, the positive switches are connected with the corresponding positive coils, and the negative switches are connected with the corresponding negative coils; the microcontroller is connected with the switch; the device comprises:
the judging module is used for judging whether the equipment to be charged is accessed, and if so, the obtaining module is triggered;
the acquisition module is used for acquiring parameters of the equipment to be charged and triggering the control module;
and the control module is used for controlling the on/off of the switches of the corresponding group according to the parameters of the equipment to be charged so as to change the number of coils connected into the circuit.
9. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the wireless charging method as claimed in claim 7.
10. A wireless charging electronic product, characterized in that, it comprises the wireless charging transmitter of any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111264311.5A CN113964953A (en) | 2021-10-28 | 2021-10-28 | Wireless charging transmitter, wireless charging method, wireless charging device, wireless charging medium and electronic product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111264311.5A CN113964953A (en) | 2021-10-28 | 2021-10-28 | Wireless charging transmitter, wireless charging method, wireless charging device, wireless charging medium and electronic product |
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