CN113612315A - Wireless charging seat, control method and control device thereof and electronic equipment - Google Patents
Wireless charging seat, control method and control device thereof and electronic equipment Download PDFInfo
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- CN113612315A CN113612315A CN202111090509.6A CN202111090509A CN113612315A CN 113612315 A CN113612315 A CN 113612315A CN 202111090509 A CN202111090509 A CN 202111090509A CN 113612315 A CN113612315 A CN 113612315A
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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
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or 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
- 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
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses a wireless charging seat, a control method and a control device thereof and electronic equipment. Wherein, wireless charging seat includes: an input circuit; the coil module comprises a first charging coil and a second charging coil and is used for sending an energy signal to a receiving coil of the electronic equipment and receiving a response signal corresponding to the energy signal; the first switch module is connected between the input circuit and the coil module and used for communicating the first charging coil with the input circuit or communicating the second charging coil with the input circuit; the wireless charging seat determines the position information of the electronic equipment according to the response signal, determines the target coil in the first charging coil and the second charging coil according to the position information, and wirelessly charges the electronic equipment through the target coil.
Description
Technical Field
The application belongs to the technical field of wireless charging, and particularly relates to a wireless charging seat, a control method and a control device thereof, and electronic equipment.
Background
In the related art, wireless charging is based on the magnetic induction principle, and energy transmission is carried out by utilizing the magnetic field near-field coupling between the charging transmitting coil and the receiving coil, so that once the transmitting coil and the receiving coil are misaligned, the energy transmission efficiency can be reduced, the charging efficiency is reduced, and the charging experience is influenced.
Disclosure of Invention
The application aims to provide a wireless charging seat, a control method and a control device of the wireless charging seat and electronic equipment, so that the wireless charging efficiency can be improved, and the charging experience can be guaranteed.
To this end, an embodiment of the first aspect of the present application provides a wireless charging cradle, including:
an input circuit;
the coil module comprises a first charging coil and a second charging coil and is used for sending an energy signal to a receiving coil of the electronic equipment and receiving a response signal corresponding to the energy signal;
the first switch module is connected between the input circuit and the coil module and used for communicating the first charging coil with the input circuit or communicating the second charging coil with the input circuit;
the wireless charging seat determines the position information of the electronic equipment according to the response signal, determines the target coil in the first charging coil and the second charging coil according to the position information, and wirelessly charges the electronic equipment through the target coil.
An embodiment of the second aspect of the present application provides a wireless charging method for controlling a wireless charging cradle as provided in the first aspect, the method including:
controlling a coil module of the wireless charging seat to transmit an energy signal;
receiving a response signal corresponding to the energy signal, and determining the position information of the electronic equipment according to the response signal;
and according to the position information, determining a target coil in a first charging coil and a second charging coil of the wireless charging stand, and wirelessly charging the electronic equipment through the target coil.
An embodiment of the third aspect of the present application provides a wireless charging apparatus for controlling a wireless charging cradle as provided in the first aspect, the wireless charging apparatus comprising:
the first control module is used for controlling the coil module of the wireless charging seat to transmit an energy signal;
the first determining module is used for receiving a response signal corresponding to the energy signal and determining the position information of the electronic equipment according to the response signal; and according to the position information, determining a target coil in a first charging coil and a second charging coil of the wireless charging stand, and wirelessly charging the electronic equipment through the target coil.
The first control module is also used for controlling the first charging coil of the wireless charging seat to send an energy signal within a first preset time length; controlling a wireless charging seat to delay a second preset time period and then controlling a second charging coil to send an energy signal within the first preset time period under the condition that a response signal corresponding to the first energy signal is not received within the first preset time period;
the first determining module is further used for determining a target signal in the first energy signal and the second energy signal according to the response signal under the condition that the response signal is received; and determining the position information of the electronic equipment according to the position of the charging coil corresponding to the target signal.
And the first determining module is further used for determining a target coil matched with the position of the position information in the first charging coil and the second charging coil according to the position information.
An embodiment of a fourth aspect of the present application provides an electronic device, including:
a rectifying circuit;
a receiving coil for receiving an energy signal;
the third capacitor and the fourth capacitor are connected between the rectifying circuit and the receiving coil;
the second switch module is connected with the rectifying circuit and is communicated with the rectifying circuit, the third capacitor and the receiving coil or the rectifying circuit, the third capacitor and the receiving coil according to the resonance frequency of the energy signal;
the electronic equipment sends a response signal to the wireless charging seat according to the signal intensity of the received energy signal, wherein the response signal corresponds to the energy signal with the strongest signal intensity.
An embodiment of a fifth aspect of the present application proposes a wireless charging method for an electronic device as provided in the fourth aspect, the method comprising:
receiving an energy signal sent by a wireless charging seat;
determining a target energy signal in the N energy signals according to the signal strength of the received N energy signals, wherein the signal strength of the target energy signal is the highest;
and generating a response signal corresponding to the target energy signal, and sending the response signal to the wireless charging seat.
An embodiment of a sixth aspect of the present application proposes a wireless charging apparatus for an electronic device as provided in the fourth aspect, the wireless charging apparatus comprising:
the receiving module is used for receiving the energy signal sent by the wireless charging seat;
the second determining module is used for determining a target energy signal in the N energy signals according to the signal strength of the received N energy signals, wherein the signal strength of the target energy signal is the highest;
and the sending module is used for generating a response signal corresponding to the target energy signal and sending the response signal to the wireless charging seat.
The wireless charging device further includes: the second control module is used for controlling the electronic equipment to receive the energy signal at the first self-resonant frequency; the wireless charging device is also used for wirelessly charging through the first self-resonant frequency under the condition that an energy signal is received within a third preset time period;
and the electronic equipment is also used for controlling the electronic equipment to adjust the self-resonant frequency and receive the energy signal at the adjusted second self-resonant frequency under the condition that the energy signal is not received within a third preset time period.
An embodiment of a seventh aspect of the present application proposes a readable storage medium on which a program or instructions are stored, which when executed by a processor implement the steps of the method as provided by the second or fifth aspect.
In this application embodiment, the coil module of wireless charging seat includes first charging coil and second charging coil, still includes first switch module, through first switch module, switches the connection status of input circuit and first charging coil and second charging coil.
Specifically, the wireless charging base sends an energy signal to the charged electronic device through the coil module, and receives a response signal returned by the electronic device according to the intensity of the energy signal. Specifically, the distance between the first charging coil and the second charging coil is different based on the position of the electronic device on the wireless charging seat. It can be appreciated that the first charging coil and the second charging coil transmit energy signals to the electronic device at the same transmit power, and the energy signals decay with increasing distance.
Therefore, the stronger the energy signal received by the electronic device is, the closer the distance between the electronic device and the coil sending the energy signal is, therefore, the electronic device returns a response signal corresponding to the stronger energy signal to the wireless charging seat, after the wireless charging seat receives the response signal, according to the response signal, in the first charging coil and the second charging coil, the target coil closer to the electronic device is determined, and the electronic device is charged through the target coil, so that the energy transfer efficiency can be effectively improved, the charging efficiency of wireless charging is improved on the one hand, the charging speed is accelerated, on the other hand, the energy loss can be reduced, and the use experience of wireless charging is effectively improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows one of the schematic structural diagrams of a wireless charging cradle according to an embodiment of the present application;
fig. 2 is a second schematic diagram illustrating a structure of a wireless charging cradle according to an embodiment of the present application;
fig. 3 shows one of the flow diagrams of a wireless charging method according to an embodiment of the application;
fig. 4 shows one of the block diagrams of the structure of the wireless charging apparatus according to the embodiment of the present application;
FIG. 5 shows a schematic structural diagram of an electronic device according to an embodiment of the application;
fig. 6 shows a second flowchart of a wireless charging method according to an embodiment of the present application;
fig. 7 shows a second block diagram of the wireless charging device according to the embodiment of the present application.
Reference numerals:
100 wireless charging stand, 102 input circuit, 104 coil module, 1042 first charging coil, 1044 second charging coil, 1046 first capacitor, 1048 second capacitor, 106 first switch module, 1062 first switch, 1064 second switch, 108 first controller;
200 electronic equipment, 202 a rectifying circuit, 204 a receiving coil, 205 a third capacitor, 206 a fourth capacitor, 208 a second switch module, 2082 a third switch device, 2084 a fourth switch device, 210 an energy storage device and 212 a second controller.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The wireless charging cradle, the control method thereof, the control device thereof and the electronic device according to the embodiments of the present application are described below with reference to fig. 1 to 7.
In some embodiments of the present application, there is provided a wireless charging cradle, in which fig. 1 shows one of the schematic structural diagrams of the wireless charging cradle according to the embodiments of the present application, and fig. 2 shows a second of the schematic structural diagrams of the wireless charging cradle according to the embodiments of the present application, and as shown in fig. 1 and fig. 2, the wireless charging cradle 100 includes:
an input circuit 102;
the coil module 104 includes a first charging coil 1042 and a second charging coil 1044, and is configured to send an energy signal to a receiving coil of the electronic device and receive a response signal corresponding to the energy signal;
the first switch module 106 is connected between the input circuit 102 and the coil module 104, and is used for communicating the first charging coil 1042 with the input circuit or communicating the second charging coil 1044 with the input circuit;
the wireless charging cradle 100 determines the location information of the electronic device according to the response signal, determines the target coil in the first charging coil 1042 and the second charging coil 1044 according to the location information, and wirelessly charges the electronic device through the target coil.
In the embodiment of the present application, the wireless cradle 100 comprises an input circuit 102, a coil module 104 and a first switch module 106. The input circuit 102 can convert the dc signal outputted by the charger into an ac signal, and input the ac signal into the coil module 104, where the ac signal can enable the coil of the coil module 104 to generate an electromagnetic field, and a receiving coil of the electronic device within a radiation range of the electromagnetic field can be coupled with the coil module 104 through the electromagnetic field, so as to transmit energy, and enable the electronic device to be wirelessly charged.
Wherein, the coil module 104 includes the first charging coil 1042 and the second charging coil 1044, it can be understood that the number of the first charging coil 1042 and the number of the second charging coil 1044 can be one or more, so that the energy radiation range of the coil module 104 covers the wireless charging cradle.
Wherein, the coil module of wireless charging seat includes first charging coil and second charging coil, still includes first switch module, through first switch module, switches the connection status of input circuit and first charging coil and second charging coil.
Specifically, the wireless charging base sends an energy signal to the charged electronic device through the coil module, and receives a response signal returned by the electronic device according to the intensity of the energy signal. Specifically, the distance between the first charging coil and the second charging coil is different based on the position of the electronic device on the wireless charging seat. It can be appreciated that the first charging coil and the second charging coil transmit energy signals to the electronic device at the same transmit power, and the energy signals decay with increasing distance.
Therefore, the stronger the energy signal received by the electronic device is, the closer the distance between the electronic device and the coil sending the energy signal is, therefore, the electronic device returns a response signal corresponding to the stronger energy signal to the wireless charging seat, after the wireless charging seat receives the response signal, according to the response signal, in the first charging coil and the second charging coil, the target coil closer to the electronic device is determined, and the electronic device is charged through the target coil, so that the energy transfer efficiency can be effectively improved, the charging efficiency of wireless charging is improved on the one hand, the charging speed is accelerated, on the other hand, the energy loss can be reduced, and the use experience of wireless charging is effectively improved.
Specifically, the first charging coil 1042 and the second charging coil 1044 have different self-resonant frequencies, assuming the self-resonant frequency of the first charging coil 1042 is F1 and the self-resonant frequency of the second charging coil is F2.
When the wireless cradle 100 detects that the electronic device is placed on the charging panel of the wireless cradle 100, the first charging coil 1042 is first controlled to transmit the energy signal S1 at the self-resonant frequency of F1 and continuously transmits for a period of time T1. If a response signal corresponding to the energy signal S1 is received within the duration of T1, the first charging coil 1042 is determined as the target coil, and the electronic device is wirelessly charged through the target coil.
If no response signal to the energy signal S1 is received within the time period T1, the second charging coil 1044 is controlled to emit the energy signal S2 at the self-resonant frequency of F2 for a time period T2. If a response signal corresponding to the energy signal S2 is received within the time period T2, the second charging coil 1044 is determined as the target coil, and the electronic device is wirelessly charged through the target coil.
It can be understood that, the charged electronic device may determine whether to return a response signal according to the signal strength of the received energy signal, if the energy signal S1 is greater than a preset strength threshold, the electronic device returns the response signal within a time period of T1, and if the energy signal S1 is less than the strength threshold, the electronic device continues to wait for the energy signal S2, selects one of the energy signal S1 and the energy signal S2 with stronger signal strength, and returns a response signal corresponding to the energy signal with stronger energy, so that a coil with higher efficiency can be always started to perform wireless charging during wireless charging, on one hand, energy loss is reduced, energy utilization rate is improved, on the other hand, the efficiency of wireless charging is improved, and charging speed is improved, thereby effectively improving the use experience of wireless charging.
In some embodiments of the present application, as shown in fig. 2, the wireless cradle further comprises:
the capacitor module comprises a first capacitor 1046 and a second capacitor 1048, the first capacitor 1046 is connected in series with the first charging coil 1042, the second capacitor 1048 is connected in series with the second charging coil 1044, and capacitance values of the first capacitor 1046 and the second capacitor 1048 are different.
In this embodiment, the capacitor module includes a first capacitor 1046 connected in series with the first charging coil 1042, and a second capacitor 1048 connected in series with the second charging coil 1044. The capacitance values of the first capacitor 1046 and the second capacitor 1048 are different, so that the first charging coil 1042 and the first capacitor 1046 can form a self-resonant frequency F1, and the second charging coil 1044 and the second capacitor 1048 can form a self-resonant frequency F2, so that an energy signal can be transmitted to the electronic device through different self-resonant frequencies, and a received response signal can be distinguished according to different self-resonant frequencies, so as to determine a target coil.
It can be understood that the inductance values of the first charging coil 1042 and the second charging coil 1044 can be the same, or the difference between the inductance values of the first charging coil 1042 and the second charging coil 1044 is smaller than the error threshold, so that the plurality of coils disposed in the wireless charging cradle 100 have the same or highly similar electrical parameters and physical parameters, which facilitates the production and assembly, reduces the production cost and improves the yield.
In some embodiments of the present application, as shown in fig. 2, the first switch module 106 includes:
the first switch 1062 is connected between the input circuit 102 and the capacitor module, and the first switch 1062, the input circuit 102 and the target capacitor form a path, wherein the target capacitor is connected with the target coil;
and a second switch 1064 connected between the input circuit 102 and the coil module 104, wherein the second switch 1064, the input circuit 102 and the target coil form a path.
In the embodiment of the present application, the first switch module 106 includes a first switch 1062 and a second switch 1064. The first switch 1062 is used to connect the input circuit 102 to the first capacitor 1046, or connect the input circuit 102 to the second capacitor 1048. The second switch 1064 is used to communicate the input circuit 102 with the first charging coil 1042 or with the input circuit 102 with the second charging coil 1044.
Since the first capacitor 1046 is connected in series with the first charging coil 1042 and the second capacitor 1048 is connected in series with the second charging coil 1044, after the first switch 1062 and the second switch 1064 are actuated, a resonant circuit is formed between the corresponding capacitor and the corresponding coil, at this time, the target coil transmits an energy signal according to the corresponding self-resonant frequency, after the energy signal is received by the electronic device, the electronic device returns a corresponding response signal, and then enters a wireless charging process until the battery of the electronic device is fully charged or the electronic device is removed.
This application embodiment is through setting up first switch module 106 to select the best target coil to charge to electronic equipment in a plurality of charging coils, can effectively reduce energy loss, improve energy utilization, improve wireless efficiency and the speed of charging, thereby improved wireless use experience who charges effectively.
In some embodiments of the present application, the first switch 1062 includes:
a first moving contact, a first end of which is connected with the input circuit 102, and a second end of which is connected with the first capacitor 1046 or the second capacitor 1048;
the second switch 1064 includes:
and a second movable contact, a first end of the second movable contact is connected with the input circuit 102, and a second end of the second movable contact is connected with the first charging coil 1042 or the second charging coil 1044.
In the present embodiment, the first switch 1062 is a "single-pole-multiple-throw" switching device, specifically a "single-pole-N-throw" switching device. Specifically, the first switch 1062 includes a first movable contact, one end of the first movable contact is a fixed end and is connected to the input circuit 102, and the second end of the first movable contact is a moving section and is switchable between two states of connecting the first capacitor 1046 and the second capacitor 1048, so that the first switch 1062 can connect the input circuit 102 and the first capacitor 1046 or connect the input circuit 102 and the second capacitor 1048.
Correspondingly, the second switch 1064 includes a second movable contact, one end of the second movable contact is a fixed end, which is connected to the input circuit 102, and the second end of the second movable contact is a moving section, which can be switched between two states of connecting the first charging coil 1042 and the second charging coil 1044, so as to connect the input circuit 102 and the first charging coil 1042, or connect the input circuit 102 and the second charging coil 1044
According to the embodiment of the present application, the first switch 1062 is used to communicate the input circuit 102 and the target capacitor, and the second switch 1064 is used to communicate the input circuit 102 and the target coil, so that the wireless charging cradle 100 can wirelessly charge the electronic device through the target coil, that is, the coil closest to the electronic device, thereby effectively reducing energy loss, improving energy utilization, improving wireless charging efficiency and charging speed, and effectively improving wireless charging experience.
In some embodiments of the present application, as shown in fig. 2, the wireless cradle 100 further comprises: and the first controller 108 is connected with the input circuit 102 and the first switch module 106, and the first controller 108 determines the target coil according to the response signal and controls the first switch module 106 to communicate the target coil with the input circuit 102.
In some embodiments of the present application, there is provided a wireless charging method for controlling a wireless charging cradle provided in any one of the above embodiments, fig. 3 shows one of flowcharts of the wireless charging method according to an embodiment of the present application, and as shown in fig. 3, the method includes:
and step 306, according to the position information, determining a target coil in the first charging coil and the second charging coil of the wireless charging stand, and wirelessly charging the electronic device through the target coil.
In this embodiment, the wireless charging cradle sends an energy signal to the charged electronic device through the coil module, and receives a response signal returned by the electronic device according to the intensity of the energy signal. Specifically, the distance between the first charging coil and the second charging coil is different based on the position of the electronic device on the wireless charging seat. It can be appreciated that the first charging coil and the second charging coil transmit energy signals to the electronic device at the same transmit power, and the energy signals decay with increasing distance.
Therefore, the stronger the energy signal received by the electronic device is, the closer the distance between the electronic device and the coil which sends the energy signal is, so that the electronic device returns a response signal corresponding to the stronger energy signal to the wireless charging seat, and after receiving the response signal, the wireless charging seat can determine, according to the response signal, whether the electronic device is opposite to the first charging coil or the second charging coil, thereby determining the position information of the electronic device, wherein the position information of the electronic device may be the position of the electronic device relative to the first charging coil and the second charging coil.
Further, according to the position information of the electronic equipment, a target coil which is closer to the electronic equipment is determined in the first charging coil and the second charging coil, the electronic equipment is charged through the target coil, the energy transfer efficiency can be effectively improved, the charging efficiency of wireless charging is improved on the one hand, the charging speed is accelerated, the energy loss can be reduced on the other hand, and the use experience of wireless charging is effectively improved.
In some embodiments of the present application, controlling the coil module of the wireless charging cradle to transmit the energy signal includes:
controlling a first charging coil of a wireless charging seat to send a first energy signal within a first preset time length;
controlling a wireless charging seat to delay a second preset time period and then controlling a second charging coil to send an energy signal within the first preset time period under the condition that a response signal corresponding to the first energy signal is not received within the first preset time period;
determining the position information of the electronic equipment according to the response signal, comprising:
under the condition that the response signal is received, determining a target signal in the first energy signal and the second energy signal according to the response signal;
and determining the position information of the electronic equipment according to the position of the charging coil corresponding to the target signal.
In this embodiment of the application, after the wireless charging cradle detects that the electronic device is placed on the charging panel of the wireless charging cradle, the wireless charging cradle is controlled to continuously transmit an energy signal at a preset first self-resonant frequency for a first preset duration, and the wireless charging pairing is performed with the electronic device through the energy signal. The energy signal can be received by a receiving coil of the electronic device, thereby identifying a corresponding charging signal. After recognizing the charging signal, the electronic device returns a response signal at the same self-resonant frequency in a manner prescribed by a wireless charging protocol (e.g., QI protocol).
Firstly, the first charging coil is controlled to send a first energy signal within a first preset time length. If the response signal is not received within the first preset time length, the currently started first charging coil is not matched with the position of a receiving coil of the electronic equipment, and after the second time length is delayed, the second charging coil is controlled to work to send a second energy signal until the response signal is received.
If the response signal is received, a target coil which is closer to the position of the electronic device is determined in the first charging coil and the second charging coil according to an energy signal corresponding to the response signal, and the position of the target coil is also the position information of the electronic device.
Specifically, for example, the first charging coil 1042 and the second charging coil 1044 have different self-resonant frequencies, assuming the self-resonant frequency of the first charging coil 1042 is F1 and the self-resonant frequency of the second charging coil is F2.
When the wireless cradle 100 detects that the electronic device is placed on the charging panel of the wireless cradle 100, the first charging coil 1042 is first controlled to transmit the energy signal S1 at the self-resonant frequency of F1 and continuously transmits for a period of time T1. If a response signal corresponding to the energy signal S1 is received within the duration of T1, the first charging coil 1042 is determined as the target coil, and the electronic device is wirelessly charged through the target coil.
If no response signal to the energy signal S1 is received within the time period T1, the second charging coil 1044 is controlled to emit the energy signal S2 at the self-resonant frequency of F2 for a time period T2. If a response signal corresponding to the energy signal S2 is received within the time period T2, the second charging coil 1044 is determined as the target coil, and the electronic device is wirelessly charged through the target coil.
It can be understood that, the charged electronic device may determine whether to return a response signal according to the signal strength of the received energy signal, if the energy signal S1 is greater than a preset strength threshold, the electronic device returns the response signal within a time period of T1, and if the energy signal S1 is less than the strength threshold, the electronic device continues to wait for the energy signal S2, selects one of the energy signal S1 and the energy signal S2 with stronger signal strength, and returns a response signal corresponding to the energy signal with stronger energy, so that a coil with higher efficiency can be always started to perform wireless charging during wireless charging, on one hand, energy loss is reduced, energy utilization rate is improved, on the other hand, the efficiency of wireless charging is improved, and charging speed is improved, thereby effectively improving the use experience of wireless charging.
In some embodiments of the present application, determining a target coil in a first charging coil and a second charging coil of a wireless charging cradle according to position information comprises:
according to the position information, a target coil matched with the position of the position information is determined in the first charging coil and the second charging coil.
In the embodiment of the application, when the target coil is determined, the corresponding target coil can be determined through the position information of the electronic device. Specifically, the electronic device returns corresponding response information according to the strength of the received energy signal. After receiving the response information, the wireless charging base can determine the charging coil with the same self-resonance frequency as the response information according to the self-resonance frequency corresponding to the response information, so as to determine the position information of the electronic device.
Furthermore, according to the position information of the electronic equipment, a target coil matched with the electronic equipment is determined in the first charging coil and the second charging coil, and wireless charging is performed through the target coil, so that the energy loss is reduced, the energy utilization rate is improved, the wireless charging efficiency is improved, the charging speed is improved, and the wireless charging use experience is effectively improved.
In some embodiments of the present application, a wireless charging apparatus is provided for controlling a wireless charging cradle according to any of the above embodiments, fig. 4 shows one of the block diagrams of the wireless charging apparatus according to the embodiments of the present application, and as shown in fig. 4, the wireless charging apparatus 400 includes:
a first control module 402, configured to control the coil module of the wireless charging cradle to transmit an energy signal;
the first determining module 404 receives a response signal corresponding to the energy signal, and determines the position information of the electronic device according to the response signal; and according to the position information, determining a target coil in a first charging coil and a second charging coil of the wireless charging stand, and wirelessly charging the electronic equipment through the target coil.
In this embodiment, the wireless charging cradle sends an energy signal to the charged electronic device through the coil module, and receives a response signal returned by the electronic device according to the intensity of the energy signal. Specifically, the distance between the first charging coil and the second charging coil is different based on the position of the electronic device on the wireless charging seat. It can be appreciated that the first charging coil and the second charging coil transmit energy signals to the electronic device at the same transmit power, and the energy signals decay with increasing distance.
Therefore, the stronger the energy signal received by the electronic device is, the closer the distance between the electronic device and the coil which sends the energy signal is, so that the electronic device returns a response signal corresponding to the stronger energy signal to the wireless charging seat, and after receiving the response signal, the wireless charging seat can determine, according to the response signal, whether the electronic device is opposite to the first charging coil or the second charging coil, thereby determining the position information of the electronic device, wherein the position information of the electronic device may be the position of the electronic device relative to the first charging coil and the second charging coil.
Further, according to the position information of the electronic equipment, a target coil which is closer to the electronic equipment is determined in the first charging coil and the second charging coil, the electronic equipment is charged through the target coil, the energy transfer efficiency can be effectively improved, the charging efficiency of wireless charging is improved on the one hand, the charging speed is accelerated, the energy loss can be reduced on the other hand, and the use experience of wireless charging is effectively improved.
In some embodiments of the present application, the first control module is further configured to control the first charging coil of the wireless charging cradle to send an energy signal within a first preset time period; controlling a wireless charging seat to delay a second preset time period and then controlling a second charging coil to send an energy signal within the first preset time period under the condition that a response signal corresponding to the first energy signal is not received within the first preset time period;
the first determining module is further used for determining a target signal in the first energy signal and the second energy signal according to the response signal under the condition that the response signal is received; and determining the position information of the electronic equipment according to the position of the charging coil corresponding to the target signal.
In the embodiment of the application, one of the energy signals S1 and S2 with stronger signal strength is selected, and a response signal corresponding to the energy signal with stronger energy is returned, so that a coil with higher efficiency can be started to perform wireless charging during wireless charging, on one hand, energy loss is reduced, energy utilization rate is improved, on the other hand, wireless charging efficiency is improved, charging speed is improved, and wireless charging experience is effectively improved.
In some embodiments of the present application, a target coil matching a location of the location information is determined in the first charging coil and the second charging coil according to the location information.
In the embodiment of the application, according to the position information of the electronic equipment, the target coil matched with the position information is determined in the first charging coil and the second charging coil, and wireless charging is performed through the target coil, so that the energy loss is reduced, the energy utilization rate is improved, the wireless charging efficiency is improved, the charging speed is improved, and the wireless charging use experience is effectively improved.
In some embodiments of the present application, an electronic device is provided, and fig. 5 shows a schematic structural diagram of the electronic device according to an embodiment of the present application, and as shown in fig. 5, the electronic device 200 includes:
a rectifier circuit 202;
a receive coil 204 for receiving an energy signal;
a third capacitor 205 and a fourth capacitor 206, wherein the third capacitor 205 and the fourth capacitor 206 are connected between the rectifying circuit 202 and the receiving coil 204;
the second switch module 208 is connected with the rectifying circuit 202, and the second switch module 208 is communicated with the rectifying circuit 202, the third capacitor 205 and the receiving coil 204 or communicated with the rectifying circuit 202, the third capacitor 205 and the receiving coil 204 according to the resonance frequency of the energy signal;
the electronic equipment sends a response signal to the wireless charging seat according to the signal intensity of the received energy signal, wherein the response signal corresponds to the energy signal with the strongest signal intensity.
In the embodiment of the present application, the electronic device 200 is an electronic device 200 having a wireless charging function. The electronic device forms a resonant circuit through the receiving coil 204 and the third capacitor 205 or the fourth capacitor 206, so as to receive the energy signal transmitted by the wireless charging stand, and wirelessly charge through the energy signal.
Specifically, based on the different placement positions of the electronic device 200 on the wireless charging cradle, the distance between the receiving coil 204 and the first and second charging coils is also different, and the signal attenuation rate is also different.
Therefore, the stronger the signal strength of the energy signal received by the electronic device 200 is, the closer the distance between the receiving coil 204 and the charging coil that sends the energy signal is, so that the electronic device returns a response signal corresponding to the stronger energy signal to the wireless charging dock, after receiving the response signal, the wireless charging dock determines a target coil closer to the electronic device according to the response signal in the first charging coil and the second charging coil, and charges the electronic device through the target coil, which can effectively improve the energy transfer efficiency, thereby improving the charging efficiency of wireless charging, increasing the charging speed, and on the other hand, reducing the energy loss, thereby effectively improving the use experience of wireless charging.
In some embodiments of the present application, the second switch module 208 includes:
the output end of the third switching device 2082 is connected with the rectifying circuit 202, and the input end of the third switching device 2082 is connected with the third capacitor 205 or the fourth capacitor 206;
and the output end of the fourth switching device 2084 are connected with the third capacitor 205 or the fourth capacitor 206, and the input end of the fourth switching device is connected with the receiving coil 204.
In the present embodiment, the second switch module 208 includes a third switch device 2082 and a fourth switch device 2084. The third switching device 2082 is used to connect the rectifying circuit 202 and the third capacitor 205, or connect the rectifying circuit 202 and the fourth capacitor 206. The fourth switching device 2084 is used to communicate the receive coil 204 with the third capacitance 205, or to communicate the receive coil 204 with the fourth capacitance 206.
Wherein the third switching device 2082 and the fourth switching device 2084 are both single-pole, multi-throw switches, and in some exemplary embodiments, the third switching device 2082 and the fourth switching device 2084 are single-pole, double-throw switches.
According to the embodiment of the application, the switching device is arranged, so that the electronic equipment 200 can receive energy signals with different self-resonant frequencies, the wireless charging seat can select the target coil which is matched with the receiving coil 204 of the electronic equipment 200 most, the electronic equipment 200 is charged through the target coil, energy loss can be effectively reduced, the energy utilization rate is improved, the wireless charging efficiency and the charging speed are improved, and the wireless charging use experience is effectively improved.
In some embodiments of the present application, the electronic device 200 comprises: the energy storage element 210 is connected with the output end of the rectifying circuit 202;
the second controller 212 is connected to the second switch module 208, and the second controller 212 controls the second switch module according to the energy signal.
According to the embodiment of the application, the energy loss can be effectively reduced, the energy utilization rate is improved, the wireless charging efficiency and the wireless charging speed are improved, and therefore the wireless charging use experience is effectively improved.
In some embodiments of the present application, a wireless charging method is provided for controlling an electronic device provided in any of the above embodiments, fig. 6 shows a second flowchart of the wireless charging method according to an embodiment of the present application, and as shown in fig. 6, the method includes:
the signal intensity of the target energy signal is the highest, and N is a positive integer;
step 606, generating a response signal corresponding to the target energy signal, and sending the response signal to the wireless charging dock.
In this embodiment of the application, the stronger the energy signal received by the electronic device is, the closer the distance between the electronic device and the coil that sends the energy signal is, after the electronic device receives N energy signals, according to the signal strength of the N energy signals, a target signal with the highest signal strength is determined, and the wireless charging coil that sends the target signal, that is, the wireless charging coil that is closest to the electronic device is determined.
At this moment, electronic equipment returns the response signal to wireless charging seat according to the resonant frequency that the target energy signal corresponds, wireless charging seat is after accepting the response signal, according to this response signal, in first charging coil and second charging coil, confirm the target coil that is closer to electronic equipment, and charge to electronic equipment through this target coil, can improve energy transfer efficiency effectively, thereby improve wireless charging's charge efficiency on the one hand, accelerate the charging speed, on the other hand can reduce energy loss, thereby promote wireless use experience who charges effectively.
In some embodiments of the present application, receiving an energy signal transmitted by a wireless cradle comprises:
controlling the electronic device to receive an energy signal at a first self-resonant frequency;
wirelessly charging through the first self-resonant frequency under the condition of receiving an energy signal within a third preset time length;
and in the third preset time period, under the condition that the energy signal is not received, controlling the electronic equipment to adjust the self-resonant frequency and receiving the energy signal at the adjusted self-resonant frequency.
In the embodiment of the application, after the electronic device is placed on the charging panel of the wireless charging stand, the electronic device is first controlled to receive the energy signal according to the preset first self-resonant frequency.
And if the energy signal is received within a third preset time period, keeping the current first self-resonant frequency for wireless charging. And if the energy signal is not received within the third preset time period, controlling the electronic equipment to switch to different self-resonant frequencies, specifically switching to a second capacitor connected with a receiving coil of the electronic equipment, so as to switch to the second self-resonant frequency to receive the energy signal, and performing wireless charging through the self-resonant frequency of the currently received energy signal after the electronic equipment receives the energy signal.
This application embodiment makes in the wireless charging process, can make wireless charging seat carry out wireless charging with the transmitting coil with receiving coil's position best matching, improves charge efficiency.
In some embodiments of the present application, there is provided a wireless charging apparatus for controlling an electronic device provided in any of the above embodiments, fig. 7 shows a second block diagram of the wireless charging apparatus according to an embodiment of the present application, and as shown in fig. 7, the wireless charging apparatus 700 includes:
a receiving module 702, configured to receive an energy signal sent by a wireless charging cradle;
a second determining module 704, configured to determine, according to signal strengths of the received N energy signals, a target energy signal from the N energy signals, where the signal strength of the target energy signal is the highest, and N is a positive integer of the first self-resonant frequency;
a sending module 706, configured to generate a response signal corresponding to the target energy signal, and send the response signal to the wireless charging cradle.
In this embodiment of the application, the stronger the energy signal received by the electronic device is, the closer the distance between the electronic device and the coil that sends the energy signal is, after the electronic device receives N energy signals, according to the signal strength of the N energy signals, a target signal with the highest signal strength is determined, and the wireless charging coil that sends the target signal, that is, the wireless charging coil that is closest to the electronic device is determined.
At this moment, electronic equipment returns the response signal to wireless charging seat according to the resonant frequency that the target energy signal corresponds, wireless charging seat is after accepting the response signal, according to this response signal, in first charging coil and second charging coil, confirm the target coil that is closer to electronic equipment, and charge to electronic equipment through this target coil, can improve energy transfer efficiency effectively, thereby improve wireless charging's charge efficiency on the one hand, accelerate the charging speed, on the other hand can reduce energy loss, thereby promote wireless use experience who charges effectively.
In some embodiments of the present application, the wireless charging apparatus further comprises: the second control module is used for controlling the electronic equipment to receive the energy signal at the first self-resonant frequency; the wireless charging device is also used for wirelessly charging through the first self-resonant frequency under the condition that an energy signal is received within a third preset time period;
and the electronic equipment is also used for controlling the electronic equipment to adjust the self-resonant frequency and receive the energy signal at the adjusted second self-resonant frequency under the condition that the energy signal is not received within a third preset time period.
In the embodiment of the application, after the electronic device is placed on the charging panel of the wireless charging stand, the electronic device is first controlled to receive the energy signal according to the preset first self-resonant frequency.
And if the energy signal is received within a third preset time period, keeping the current first self-resonant frequency for wireless charging. And if the energy signal is not received within the third preset time period, controlling the electronic equipment to switch to different self-resonant frequencies, specifically switching to a second capacitor connected with a receiving coil of the electronic equipment, so as to switch to the second self-resonant frequency to receive the energy signal, and performing wireless charging through the self-resonant frequency of the currently received energy signal after the electronic equipment receives the energy signal.
This application embodiment makes in the wireless charging process, can make wireless charging seat carry out wireless charging with the transmitting coil with receiving coil's position best matching, improves charge efficiency.
In some embodiments of the present application, a readable storage medium is provided, where a program or an instruction is stored on the readable storage medium, and the program or the instruction when executed by a processor implements the steps of the method in any of the above method embodiments, so that the readable storage medium also includes all the advantages of any of the above method embodiments, and is not described herein again to avoid repetition.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. A wireless charging cradle, comprising:
an input circuit;
the coil module comprises a first charging coil and a second charging coil and is used for sending an energy signal to a receiving coil of the electronic equipment and receiving a response signal corresponding to the energy signal;
the first switch module is connected between the input circuit and the coil module and used for communicating the first charging coil with the input circuit or communicating the second charging coil with the input circuit;
the wireless charging seat determines the position information of the electronic equipment according to the response signal, determines a target coil in the first charging coil and the second charging coil according to the position information, and wirelessly charges the electronic equipment through the target coil.
2. The wireless charging cradle according to claim 1, further comprising:
the capacitor module comprises a first capacitor and a second capacitor, the first capacitor is connected with the first charging coil in series, the second capacitor is connected with the second charging coil in series, and the capacitance value of the first capacitor is different from that of the second capacitor.
3. The wireless charging cradle according to claim 2, wherein the first switch module comprises:
the first switch is connected between the input circuit and the capacitor module, and the first switch, the input circuit and a target capacitor form a path, wherein the target capacitor is connected with the target coil;
and the second switch is connected between the input circuit and the coil module, and the second switch, the input circuit and the target coil form a passage.
4. The wireless charging cradle of claim 3, wherein the first switch comprises:
a first end of the first movable contact is connected with the input circuit, and a second end of the first movable contact is connected with the first capacitor or the second capacitor;
the second switch includes:
and a first end of the second movable contact is connected with the input circuit, and a second end of the second movable contact is connected with the first charging coil or the second charging coil.
5. A wireless charging method for controlling the wireless charging cradle according to any one of claims 1 to 4, the method comprising:
controlling a coil module of the wireless charging seat to transmit an energy signal;
receiving a response signal corresponding to the energy signal, and determining the position information of the electronic equipment according to the response signal;
and according to the position information, determining a target coil in a first charging coil and a second charging coil of the wireless charging seat, and wirelessly charging the electronic equipment through the target coil.
6. The wireless charging method of claim 5, wherein the controlling the coil module of the wireless charging cradle to transmit an energy signal comprises:
controlling a first charging coil of the wireless charging stand to send a first energy signal within a first preset time length;
controlling the wireless charging seat to delay a second preset time period and then controlling the second charging coil to send a second energy signal within the first preset time period under the condition that a response signal corresponding to the first energy signal is not received within the first preset time period;
the determining the position information of the electronic device according to the response signal includes:
under the condition that the response signal is received, determining a target signal in the first energy signal and the second energy signal according to the response signal;
and determining the position information of the electronic equipment according to the position of the charging coil corresponding to the target signal.
7. The wireless charging method of claim 5, wherein the determining a target coil in a first charging coil and a second charging coil of the wireless charging cradle according to the position information comprises:
according to the position information, the target coil matched with the position of the position information is determined in the first charging coil and the second charging coil.
8. A wireless charging apparatus for controlling the wireless charging cradle according to any one of claims 1 to 4, comprising:
the first control module is used for controlling the coil module of the wireless charging seat to transmit an energy signal;
the first determining module is used for receiving a response signal corresponding to the energy signal and determining the position information of the electronic equipment according to the response signal; and according to the position information, determining a target coil in a first charging coil and a second charging coil of the wireless charging seat, and wirelessly charging the electronic equipment through the target coil.
9. An electronic device, comprising:
a rectifying circuit;
a receiving coil for receiving an energy signal;
the third capacitor and the fourth capacitor are connected between the rectifying circuit and the receiving coil;
the second switch module is connected with the rectifying circuit and is used for communicating the rectifying circuit, the third capacitor and the receiving coil or communicating the rectifying circuit, the third capacitor and the receiving coil according to the resonance frequency of an energy signal;
the electronic equipment sends a response signal to the wireless charging seat according to the signal strength of the received energy signal, wherein the response signal corresponds to the energy signal with the strongest signal strength.
10. The electronic device of claim 9, wherein the second switch module comprises:
the output end of the third switching device is connected with the rectifying circuit, and the input end of the third switching device is connected with the third capacitor or the fourth capacitor;
and the output end of the fourth switching device is connected with the third capacitor or the fourth capacitor, and the input end of the fourth switching device is connected with the receiving coil.
11. A wireless charging method for an electronic device according to claim 9 or 10, the method comprising:
receiving an energy signal sent by a wireless charging seat;
determining a target energy signal in the N energy signals according to the signal strength of the received N energy signals, wherein the signal strength of the target energy signal is the highest, and N is a positive integer;
and generating a response signal corresponding to the target energy signal, and sending the response signal to the wireless charging seat.
12. The wireless charging method of claim 11, wherein the receiving the energy signal transmitted by the wireless charging cradle comprises:
controlling the electronic device to receive an energy signal at a first self-resonant frequency;
in a third preset time period, under the condition that the energy signal is received, wirelessly charging through the first self-resonant frequency;
and controlling the electronic equipment to adjust the self-resonant frequency and receive the energy signal at the adjusted self-resonant frequency under the condition that the energy signal is not received within the third preset time.
13. A wireless charging apparatus for an electronic device according to claim 9 or 10, the wireless charging apparatus comprising:
the receiving module is used for receiving the energy signal sent by the wireless charging seat;
a second determining module, configured to determine, according to signal strengths of N received energy signals, a target energy signal among the N energy signals, where the signal strength of the target energy signal is the highest, and N is a positive integer;
and the sending module is used for generating a response signal corresponding to the target energy signal and sending the response signal to the wireless charging seat.
14. A readable storage medium, on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to any one of claims 5 to 7, 11, 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111090509.6A CN113612315A (en) | 2021-09-17 | 2021-09-17 | Wireless charging seat, control method and control device thereof and electronic equipment |
| PCT/CN2022/118343 WO2023040807A1 (en) | 2021-09-17 | 2022-09-13 | Wireless charging base, and control method therefor, control apparatus thereof and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111090509.6A CN113612315A (en) | 2021-09-17 | 2021-09-17 | Wireless charging seat, control method and control device thereof and electronic equipment |
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| CN113612315A true CN113612315A (en) | 2021-11-05 |
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| CN202111090509.6A Pending CN113612315A (en) | 2021-09-17 | 2021-09-17 | Wireless charging seat, control method and control device thereof and electronic equipment |
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| CN (1) | CN113612315A (en) |
| WO (1) | WO2023040807A1 (en) |
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