CN106300689B - Wireless charging adjustment method and device and charged equipment - Google Patents
Wireless charging adjustment method and device and charged equipment Download PDFInfo
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- CN106300689B CN106300689B CN201510304451.9A CN201510304451A CN106300689B CN 106300689 B CN106300689 B CN 106300689B CN 201510304451 A CN201510304451 A CN 201510304451A CN 106300689 B CN106300689 B CN 106300689B
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Abstract
The embodiment of the invention discloses a wireless charging adjustment method, which comprises the following steps: adjusting parameters of a charging circuit of the charged equipment for multiple times; after the parameters of the charging circuit of the charged device are adjusted each time, the charging signal intensity of the current charging position is obtained; and determining the parameters of the charging circuit of the charged equipment corresponding to the acquired maximum values of the charging signal intensities as the parameters of the charging circuit of the current charged equipment. The embodiment of the invention also discloses a wireless charging adjusting device and a charged device.
Description
Technical Field
The present invention relates to wireless charging technologies, and in particular, to a wireless charging adjustment method and apparatus, and a device to be charged.
Background
In the wireless charging technology, a charged device realizes wireless charging by receiving energy transmitted by the wireless charging device. At present, the variety of wireless charging equipment is various, and the charging efficiency and the charging power of the equipment to be charged can all change along with the change of the wireless charging equipment, so that wireless charging becomes unstable, and even the wireless charging is interrupted.
In the following description, an electromagnetic induction type wireless charging technology is taken as an example, a coil of a wireless charging device is a primary coil, a coil of a device to be charged is a secondary coil, and the device to be charged transfers energy emitted by the wireless charging device through an LC oscillation circuit. For the LC oscillating circuit of the charged device, the selection of the resonant capacitor determines the efficiency, stability and coupling of wireless charging, and the selection of the resonant capacitor also determines to a great extent whether the charged device meets the Foreign Object Detection (FOD) standard.
The relative position of the charged device and the wireless charging device plays a crucial role in the coupling of wireless charging, and here, the position of the charged device on the wireless charging device corresponding to the maximum charging signal strength is referred to as the center position of the charged device, and if the signal strength corresponding to the position of the charged device on the wireless charging device is not the maximum signal strength, the position of the charged device on the wireless charging device is referred to as the other position of the charged device. Obviously, when the device to be charged is located at the central position, the efficiency of wireless charging is the highest, and when the device to be charged is located at other positions, the efficiency of wireless charging is lower than that when the device to be charged is located at the central position.
At present, the primary coils used by different wireless charging devices are different in shape/structure, a magnet is arranged at the central position of the coil of some wireless charging devices, and no magnet is arranged at the central position of the coil of some wireless charging devices; some wireless charging devices include multiple coils, while some wireless charging devices have only one coil. In this way, the coupling between the secondary coil of the charged device and the primary coil of the wireless charging device changes along with the change of the primary coil; if the transmission power of different wireless charging devices is the same, the oscillation frequency of the LC oscillation circuit of the device to be charged may also change, which may cause the wireless charging to become unstable, for example, the wireless charging may be interrupted, which may cause the primary coil of the wireless charging device to be magnetically saturated.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention desirably provide a wireless charging adjustment method, an apparatus and a device to be charged, which can improve the coupling between a coil of a wireless charging device and a coil of a device to be charged, and improve the wireless charging efficiency.
The technical scheme of the invention is realized as follows:
the embodiment of the invention provides a wireless charging adjustment method, which comprises the following steps:
adjusting parameters of a charging circuit of the charged equipment for multiple times; after the parameters of the charging circuit of the charged device are adjusted each time, the charging signal intensity of the current charging position is obtained;
and determining the parameters of the charging circuit of the charged equipment corresponding to the acquired maximum values of the charging signal intensities as the parameters of the charging circuit of the current charged equipment.
In the foregoing solution, before the adjusting the parameters of the charging circuit of the charged device for multiple times, the method further includes: selecting a device to be adjusted from all devices of a charging circuit of charged equipment;
the parameter adjusting method for adjusting the charging circuit of the charged device each time comprises at least one of the following parameter adjusting methods: and replacing the device to be regulated with the device to be regulated to access the charging circuit of the charged equipment, connecting the device to be regulated and the device of the same kind in parallel, and connecting the device to be regulated and the device of the same kind in series.
In the above scheme, the device to be adjusted and the devices of the same kind are both connected to the charging circuit of the charged device through the electronic switch; before the parameters of the charging circuit of the charged equipment are adjusted for multiple times, the electronic switch corresponding to the device to be adjusted is in a closed state;
the method for connecting a device of the same kind as the device to be regulated to the charging circuit of the charged equipment instead of the device to be regulated comprises the following steps: controlling the electronic switches corresponding to the devices to be adjusted to be switched off, and controlling the electronic switches corresponding to the devices of the same type to be switched on;
the parallel connection of the device to be adjusted and the device of the same kind comprises the following steps: and controlling the electronic switches corresponding to the devices of the same type to be closed in the branch circuit connected with the devices to be adjusted in parallel.
In the foregoing solution, before the adjusting the parameters of the charging circuit of the charged device for multiple times, the method further includes: selecting a device with adjustable parameters from all devices of a charging circuit of charged equipment as a device to be adjusted;
the method for adjusting the parameters of the charging circuit of the charged device each time comprises the following steps: and adjusting the adjustable parameters of the device to be adjusted.
In the above solution, before adjusting parameters of a charging circuit of a device to be charged for multiple times, the method further includes: acquiring the intensity of a charging signal of a current charging position at the current moment;
the multiple adjustment of parameters of the charging circuit of the charged device comprises: and if the charging signal intensity of the current charging position at the current moment is not greater than the charging signal intensity threshold value, adjusting the parameters of the charging circuit of the charged equipment for multiple times.
In the above scheme, the parameter of the charging circuit of the charged device includes a parameter of an LC oscillating circuit in the charging circuit of the charged device;
the adjusting parameters of the charging circuit of the charged device for multiple times comprises: and adjusting parameters of an LC oscillating circuit in a charging circuit of the charged equipment for multiple times.
In the above scheme, the parameter of the charging circuit of the charged device includes a resonant capacitor of an LC oscillating circuit in the charging circuit of the charged device;
the adjusting parameters of the charging circuit of the charged device for multiple times comprises: and sequentially taking each capacitor with different capacitance values as a resonant capacitor of an LC oscillating circuit in the charging circuit of the charged equipment.
An embodiment of the present invention further provides a wireless charging adjustment apparatus, including: an adjusting module and a determining module; wherein the content of the first and second substances,
the adjusting module is used for adjusting parameters of a charging circuit of the charged equipment for multiple times; after the parameters of the charging circuit of the charged device are adjusted each time, the charging signal intensity of the current charging position is obtained;
and the determining module is used for determining the parameters of the charging circuit of the charged equipment corresponding to the acquired maximum values of the charging signal intensities as the parameters of the charging circuit of the current charged equipment.
In the above scheme, the adjusting module is configured to select a device to be adjusted from each device of the charging circuit of the charged device before the parameters of the charging circuit of the charged device are adjusted for multiple times;
the parameter adjusting mode of the adjusting module for adjusting the charging circuit of the charged device each time comprises at least one of the following parameter adjusting modes: and replacing the device to be regulated with the device to be regulated to access the charging circuit of the charged equipment, connecting the device to be regulated and the device of the same kind in parallel, and connecting the device to be regulated and the device of the same kind in series.
In the above scheme, the device to be adjusted and the devices of the same kind are both connected to the charging circuit of the charged device through the electronic switch; before the parameters of the charging circuit of the charged equipment are adjusted for multiple times, the electronic switch corresponding to the device to be adjusted is in a closed state;
the adjusting module is used for controlling the electronic switches corresponding to the devices to be adjusted to be switched off and controlling the electronic switches corresponding to the devices of the same type to be switched on when the devices of the same type as the devices to be adjusted are switched in the charging circuit of the charged equipment in place of the devices to be adjusted;
the adjusting module is used for controlling the electronic switches corresponding to the devices of the same type to be closed in the branches connected in parallel with the devices to be adjusted when the devices to be adjusted are connected in parallel with the devices of the same type.
In the above scheme, the adjusting module is configured to select a parameter-adjustable device from devices of the charging circuit of the charged device as a device to be adjusted before the parameters of the charging circuit of the charged device are adjusted for multiple times;
the method for adjusting the parameter of the charging circuit of the charged device by the adjusting module each time comprises the following steps: and adjusting the adjustable parameters of the device to be adjusted.
In the above scheme, the adjusting module is configured to obtain the charging signal intensity of the current charging position at the current moment before the parameters of the charging circuit of the charged device are adjusted for multiple times; and judging whether the charging signal intensity of the current charging position at the current moment is greater than a charging signal intensity threshold value, and if the charging signal intensity of the current charging position at the current moment is not greater than the charging signal intensity threshold value, adjusting parameters of a charging circuit of the charged equipment for multiple times.
In the above scheme, the parameter of the charging circuit of the charged device includes a parameter of an LC oscillating circuit in the charging circuit of the charged device;
the adjusting parameters of the charging circuit of the charged device for multiple times comprises: and adjusting parameters of an LC oscillating circuit in a charging circuit of the charged equipment for multiple times.
In the above scheme, the parameter of the charging circuit of the charged device includes a resonant capacitor of an LC oscillating circuit in the charging circuit of the charged device;
and the adjusting module is used for sequentially using each capacitor with different capacitance values as a resonant capacitor of an LC oscillating circuit in the charging circuit of the charged equipment.
The embodiment of the invention also provides a charged device, which comprises any one of the above devices.
According to the wireless charging adjustment method and device and the charged device, parameters of a charging circuit of the charged device are adjusted for multiple times, and after the parameters are adjusted each time, the charging signal intensity of the current charging position is obtained; determining parameters of a charging circuit of the charged equipment based on the acquired maximum value of the intensity of each charging signal; thus, the coupling performance of the coil of the wireless charging device and the coil of the charged device can be improved, and therefore the wireless charging efficiency and stability are improved.
Drawings
Fig. 1 is a flowchart illustrating a wireless charging adjustment method according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating a wireless charging adjustment method according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of a first structure of an LC oscillating circuit in a second embodiment of the wireless charging adjustment method according to the present invention;
fig. 4 is a schematic diagram of a second structure of an LC oscillating circuit in a second embodiment of the wireless charging adjustment method according to the present invention;
fig. 5 is a flowchart illustrating a wireless charging adjustment method according to a third embodiment of the present invention;
fig. 6 is a flowchart illustrating a wireless charging adjustment method according to a fourth embodiment of the present invention;
fig. 7 is a flowchart illustrating a wireless charging adjustment method according to a fifth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a wireless charging adjustment device according to an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
First embodiment
Fig. 1 is a flowchart of a wireless charging adjustment method according to a first embodiment of the present invention, as shown in fig. 1, the method includes:
step 100: when the charged equipment is wirelessly charged, adjusting parameters of a charging circuit of the charged equipment for multiple times; and after the parameters of the charging circuit of the charged equipment are adjusted each time, acquiring the charging signal intensity of the current charging position.
Here, the device to be charged may be a mobile terminal, or may be another device that needs to be wirelessly charged. The charged device charging circuit includes, but is not limited to, an LC oscillating circuit.
Here, the parameter of the charged device charging circuit may be a parameter or a plurality of parameters of any device in the charged device charging circuit, for example, the parameter of the charged device charging circuit is a capacitance value of a capacitor in the charged device charging circuit.
Here, when the parameter of the charging circuit of the charged device is adjusted a plurality of times, the range of the parameter of the charging circuit of the charged device may be set in advance. The number of times of adjusting the parameter of the charging circuit of the device to be charged may be set in advance, or the process of adjusting the parameter of the charging circuit of the device to be charged a plurality of times may be ended when the time for adjusting the parameter of the charging circuit of the device to be charged reaches the set time length.
In this step, the charged device may be wirelessly charged by the wireless charging device. Before the parameters of the charging circuit of the charged device are adjusted for multiple times, the charging signal intensity of the current charging position at the current moment can be acquired. Here, the wireless charging apparatus may be a wireless charger.
It should be noted that, when parameters of the charging circuit of the charged device are adjusted for multiple times, the charging position of the charged device is always kept unchanged; that is, the relative position of the charged device and the wireless charger remains unchanged when the parameters of the charged device charging circuit are adjusted multiple times.
Here, the acquired charging signal strength of the current charging position may be one of the following physical quantities: the charging current of the charged device at the current charging position, the charging voltage of the charged device at the current charging position, and the charging power of the charged device at the current charging position. Here, the charging power of the charged device at the current charging position is an amount: the product of the charging current and the charging voltage of the charged device at the current charging position.
It can be seen that, this step needs to determine whether the charged device is performing wireless charging, where determining whether the charged device is performing wireless charging may include: the method comprises the steps that a charged device firstly obtains the charging signal intensity of the current charging position at the current moment, and if the charging signal intensity of the current charging position at the current moment exceeds the charging signal intensity lower limit value, the charged device indicates that the charged device is wirelessly charged; otherwise, the charged device is not in a charging state, and at this time, the process is ended, and the wireless charging adjustment is not performed on the charged device.
Here, the method for adjusting the parameter of the charging circuit of the device to be charged each time may be method one or method two, which will be described below.
The method comprises the following steps: before the parameters of the charging circuit of the charged equipment are adjusted for multiple times, the device to be adjusted is selected from all devices of the charging circuit of the charged equipment.
When the parameters of the charging circuit of the charged equipment are adjusted each time, the parameters are adjusted according to at least one of the following parameter adjusting modes: and replacing the device to be regulated with the device to be regulated to access the charging circuit of the charged equipment, connecting the device to be regulated and the device of the same kind in parallel, and connecting the device to be regulated and the device of the same kind in series. Here, if the device to be adjusted is a capacitor, the same kind of device as the device to be adjusted is also a capacitor.
The second method comprises the following steps: before the adjusting the parameters of the charging circuit of the charged device for multiple times, the method further comprises: selecting a device with adjustable parameters from all devices of a charging circuit of charged equipment as a device to be adjusted;
when the parameters of the charging circuit of the charged device are adjusted each time, the parameters are adjusted according to the following parameter adjusting modes: and adjusting the adjustable parameters of the device to be adjusted.
It should be noted that the manner of adjusting the parameters of the charging circuit of the device to be charged twice may be the same or different.
Step 101: and determining the parameters of the charging circuit of the charged equipment as the parameters of the charging circuit of the charged equipment corresponding to the acquired maximum value of the intensity of each charging signal.
Here, the parameters of the charging circuit of the charged device are determined in the same manner as the parameter adjustment of the charging circuit of the charged device corresponding to the maximum value of the acquired respective charging signal intensities.
For example, the parameter adjustment method of the charging circuit of the charged device corresponding to the maximum value of the acquired charging signal strength is as follows: connecting the device to be adjusted and the same kind of device in parallel, and determining the parameters of the charging circuit of the charged device in this step includes: and connecting the devices of the same type corresponding to the maximum value of the acquired charging signal intensity in parallel with the device to be adjusted.
Second embodiment
In order to further embody the object of the present invention, the electromagnetic induction type wireless charging technology is taken as an example to be explained on the basis of the first embodiment of the present invention. Fig. 2 is a flowchart of a wireless charging adjustment method according to a second embodiment of the present invention, as shown in fig. 2, the method includes:
step 200: when the charged equipment is wirelessly charged, the device to be adjusted is selected from the devices of the charging circuit of the charged equipment.
Here, the charging circuit of the device to be charged includes an LC oscillating circuit, and fig. 3 is a schematic diagram of a first structure of the LC oscillating circuit in a second embodiment of the wireless charging adjustment method of the present invention, as shown in fig. 3, the LC oscillating circuit includes an inductor L and two resonant capacitors, which are a first resonant capacitor Cs and a second resonant capacitor Cd, respectively. At this time, the first resonance capacitor Cs is a series resonance capacitor of the LC oscillation circuit, and the second resonance capacitor Cd is a parallel resonance capacitor of the LC oscillation circuit. Referring to fig. 3, a branch formed by connecting the inductor L and the series resonant capacitor Cs in series is connected in parallel to the parallel resonant capacitor Cd.
Specifically, the capacitance value of the first resonance capacitor Cs and the capacitance value of the second resonance capacitor Cd may be determined according to the following formulas:
C1＝[(fS·2π)2·LS]-1
wherein, C1Representing the capacitance value, C, of the first resonant capacitor Cs2Indicating the capacitance value, L, of the second resonant capacitor CdSRepresenting the inductance value, f, of the inductor LSRepresenting the resonance frequency, f, to be reached by series resonance in the LC oscillating circuitDIndicating the resonant frequency that the parallel resonance in the LC tank circuit needs to reach.
It should be understood that the LC oscillator circuit is part of the charging circuit of the device to be charged, for harvesting the energy emitted by the wireless charging device; the LC oscillating circuit is a front-stage circuit of a charged device charging circuit, and the charged device charging circuit also comprises a rear-stage circuit, such as a rectifying circuit, for connecting with a power supply of the charged device; the subsequent stage circuit of the charging circuit of the device to be charged is not shown in fig. 3.
In the present embodiment, the first resonant capacitor Cs of the LC oscillation circuit is taken as a device to be adjusted.
Step 201: adjusting parameters of an LC oscillating circuit of the charged equipment for multiple times; and when the parameters of the LC oscillating circuit of the charged equipment are adjusted each time, the device to be adjusted is connected with the same type of device in parallel.
Fig. 4 is a schematic diagram of a second structure of an LC oscillating circuit in a second embodiment of the wireless charging adjustment method of the invention. As shown in fig. 4, N capacitors to be connected in parallel are provided in the LC oscillating circuit, where N is a natural number greater than 1, the N capacitors to be connected in parallel are respectively represented as a 1 st capacitor to be connected in parallel Cs1 to an nth capacitor to be connected in parallel CsN, and capacitance values of any two capacitors of the N capacitors to be connected in parallel are different. Each capacitor to be connected in parallel is connected into the charging circuit of the charged equipment through an electronic switch, the ith capacitor to be connected in parallel Csi is connected into the charging circuit of the charged equipment through an ith electronic switch Ki, and i is 1 to N.
Here, the on-off state of each electronic switch is controlled by a control signal, and initially, under the control of the control signal, each electronic switch is in an off state, and obviously, the 1 st to-be-connected capacitor Cs1 to the nth to-be-connected capacitor CsN are not connected to the charging circuit of the charged device.
When the charged equipment is wirelessly charged, the parameters of the LC oscillating circuit are adjusted for N times, when the parameters of the LC oscillating circuit are adjusted each time, one electronic switch is controlled to be closed, the rest electronic switches are controlled to be opened, and the closed electronic switches are different when the parameters of the LC oscillating circuit are adjusted for any two times. Thus, the capacitance value of the series resonance capacitor of the LC oscillating circuit is changed when the parameter of the LC oscillating circuit is adjusted each time; for example, when the ith electronic switch Ki is closed, the ith capacitance Csi to be connected in parallel is connected to the LC oscillation circuit, and the capacitance value of the series resonant capacitor of the LC oscillation circuit is the sum of the capacitance value of the ith capacitance Csi to be connected in parallel and the capacitance value of the first resonant capacitor Cs.
In this embodiment, the control signal may be generated by the charged device, and the on-off state of each electronic switch is automatically controlled by the control signal, so as to improve the efficiency of adjusting the parameters of the charging circuit of the charged device.
Step 202: and determining the parameters of the LC oscillating circuit of the charged equipment corresponding to the acquired maximum values of the charging signal intensities as the parameters of the LC oscillating circuit of the charged equipment.
Here, after each adjustment of the parameter of the LC oscillation circuit, the coupling between the primary coil of the wireless charging apparatus and the inductance of the charged apparatus changes due to the change of the parameter of the LC oscillation circuit, and at this time, the charging signal intensity of the charged apparatus also changes. Therefore, after the parameters of the LC oscillating circuit of the device to be charged corresponding to the maximum values of the acquired charging signal intensities are determined as the parameters of the LC oscillating circuit of the device to be charged, the coupling between the primary coil of the wireless charging device and the inductance of the device to be charged can be improved, and the wireless charging efficiency can be improved.
Third embodiment
To further illustrate the object of the present invention, the first embodiment of the present invention is further illustrated. Fig. 5 is a flowchart of a wireless charging adjustment method according to a third embodiment of the present invention, as shown in fig. 5, the method includes:
step 500 is identical to step 200 and will not be described again.
Step 501 substantially corresponds to step 201, with the difference that each time the parameters of the LC oscillating circuit of the device to be charged are adjusted, a device of the same kind as the device to be adjusted is connected to the charging circuit of the device to be charged instead of the device to be adjusted.
Specifically, on the basis of the second embodiment of the wireless charging adjustment method of the present invention, an N +1 th electronic switch is provided, and the N +1 th electronic switch is connected in series with the first resonant capacitor Cs; the branch formed by connecting the (N + 1) th electronic switch and the first resonant capacitor Cs in series is connected in parallel with the branch formed by connecting the ith capacitor Csi to be connected in parallel and the ith electronic switch Ki in series. At the beginning, under the control of control signal, the (N + 1) th electronic switch is in the closed state, and first resonant capacitor Cs is switched into LC oscillating circuit, and LC oscillating circuit can normally work at this moment.
When the charged equipment is wirelessly charged, the parameters of the LC oscillating circuit are adjusted for N times, when the parameters of the LC oscillating circuit are adjusted each time, the (N + 1) th electronic switch is controlled to be switched off, one of the (1) st electronic switch K1 to the Nth electronic switch KN is controlled to be switched on, the rest of the (1) st electronic switch K1 to the Nth electronic switch KN are controlled to be switched off, and the electronic switches which are switched on when the parameters of the LC oscillating circuit are adjusted for any two times are different. Thus, the capacitance value of the series resonance capacitor of the LC oscillating circuit is changed when the parameter of the LC oscillating circuit is adjusted each time; for example, when the ith electronic switch Ki is closed, the ith capacitance to be connected in parallel Csi is connected to the LC oscillating circuit, and at this time, the series resonant capacitance of the LC oscillating circuit is the ith capacitance to be connected in parallel Csi.
Step 502 is identical to step 202, and will not be described herein.
Fourth embodiment
To further illustrate the object of the present invention, the first embodiment of the present invention is further illustrated. Fig. 6 is a flowchart of a wireless charging adjustment method according to a fourth embodiment of the present invention, as shown in fig. 6, the method includes:
step 600 is substantially the same as step 200, except that when a device to be adjusted is selected from the devices of the charging circuit of the charged device, a device with adjustable parameters is used as the device to be adjusted. For example, if one of the capacitors of the charging circuit of the charged device is an adjustable capacitor, the adjustable capacitor can be used as the device to be adjusted.
Further, when a device to be adjusted is selected from each device of the charging circuit of the charged device, the device with the electrically controlled adjustable parameter can be used as the device to be adjusted, and here, when the device with the electrically controlled adjustable parameter receives the control signal, the device can adjust the parameter of the device based on the corresponding control signal.
Step 601 is substantially the same as step 201, and the difference is that when the parameters of the LC oscillating circuit of the charged device are adjusted each time, the adjustable parameters of the device to be adjusted are adjusted, the parameters of the device to be adjusted after any two adjustments are different, and the parameters of the device to be adjusted after each parameter adjustment are different from the parameters of the device to be adjusted at the beginning. For example, when the device to be adjusted is an adjustable capacitor, the capacitance values of the adjustable capacitor after each parameter adjustment are different, and the capacitance value of the adjustable capacitor after each parameter adjustment is different from the capacitance value of the adjustable capacitor at the beginning.
Further, if the device to be adjusted is a device with electrically controlled adjustable parameters, in this step, when the device to be adjusted is subjected to parameter adjustment, the control signal of the device to be adjusted is used for controlling.
Step 602 is identical to step 202, and will not be described herein.
Fifth embodiment
To further illustrate the object of the present invention, the first embodiment of the present invention is further illustrated. Fig. 7 is a flowchart of a wireless charging adjustment method according to a fifth embodiment of the present invention, as shown in fig. 7, the method includes:
step 700: when the charged equipment is wirelessly charged, judging whether the charging signal intensity of the current charging position at the current moment is greater than a charging signal intensity threshold value, if so, not adjusting the parameters of a charging circuit of the charged equipment, and continuously performing wireless charging based on the parameters of the charging circuit of the current charged equipment; and if the charging signal intensity of the current charging position at the current moment is not greater than the charging signal intensity threshold, jumping to step 701.
In this step, the charging signal strength threshold may be set, for example, the charging signal strength threshold is 0.5A, and if the charging signal strength of the current charging location at the current time is 0.6A, the charging signal strength of the current charging location at the current time is greater than the charging signal strength threshold. Here, if the charging signal strength of the current charging position at the current moment is greater than the charging signal strength threshold, it indicates that the coupling between the primary coil of the current wireless charging device and the secondary coil of the device to be charged is good, and therefore, it is not necessary to adjust the parameters of the charging circuit of the device to be charged.
Step 701 is substantially the same as step 200, and the difference is that the process of determining whether the charged device is performing wireless charging is eliminated, and a device to be adjusted is directly selected from each device of the charging circuit of the charged device.
Steps 702-703 are identical to steps 201-202, and are not repeated herein.
Sixth embodiment
Aiming at the wireless charging adjustment method in the embodiment of the invention, the embodiment of the wireless charging adjustment device is also provided. Fig. 8 is a schematic structural diagram of a wireless charging adjustment device according to an embodiment of the present invention, and as shown in fig. 8, the wireless charging adjustment device includes: an adjustment module 800 and a determination module 801; wherein the content of the first and second substances,
an adjusting module 800, configured to adjust parameters of a charging circuit of a device to be charged multiple times; and after the parameters of the charging circuit of the charged equipment are adjusted each time, acquiring the charging signal intensity of the current charging position.
A determining module 801, configured to determine, as a parameter of the current charging circuit of the charged device, a parameter of the charging circuit of the charged device corresponding to the maximum value of the acquired charging signal strengths.
Specifically, the adjusting module 800 is configured to select a device to be adjusted from devices of the charging circuit of the charged device before the parameters of the charging circuit of the charged device are adjusted for multiple times; the parameter adjusting mode of the adjusting module for adjusting the charging circuit of the charged device each time comprises at least one of the following parameter adjusting modes: and replacing the device to be regulated with the device to be regulated to access the charging circuit of the charged equipment, connecting the device to be regulated and the device of the same kind in parallel, and connecting the device to be regulated and the device of the same kind in series.
Here, the device to be adjusted and the device of the same kind are connected to the charging circuit of the charged device through an electronic switch; before the parameters of the charging circuit of the charged equipment are adjusted for multiple times, the electronic switch corresponding to the device to be adjusted is in a closed state; the adjusting module 800 is configured to, when a device of the same kind as the device to be adjusted is connected to the charging circuit of the charged device instead of the device to be adjusted, control the electronic switch corresponding to the device to be adjusted to be turned off, and control the electronic switch corresponding to the device of the same kind to be turned on; the adjusting module 800 is configured to, when the device to be adjusted is connected in parallel with a device of the same type, control the electronic switches corresponding to the device of the same type to be closed in the branch connected in parallel with the device to be adjusted.
The adjusting module 800 is configured to select a parameter-adjustable device from the devices of the charging circuit of the charged device as a device to be adjusted before the parameters of the charging circuit of the charged device are adjusted for multiple times; here, the manner of adjusting the parameter of the charging circuit of the charged device by the adjusting module each time includes: and adjusting the adjustable parameters of the device to be adjusted. Here, if the device to be adjusted is a device of electrically controlled adjustable parameters, in this step, when the device to be adjusted is subjected to parameter adjustment, control is performed using a control signal of the device to be adjusted.
Further, the adjusting module 800 determines the parameters of the charging circuit of the charged device in the same manner as the parameter adjustment of the charging circuit of the charged device corresponding to the maximum value of the acquired charging signal strength.
Further, the adjusting module 800 is configured to, before the parameters of the charging circuit of the charged device are adjusted for multiple times, obtain the charging signal strength of the current charging position at the current moment, and determine whether the charging signal strength of the current charging position at the current moment is greater than a charging signal strength threshold, and if the charging signal strength of the current charging position at the current moment is not greater than the charging signal strength threshold, adjust the parameters of the charging circuit of the charged device for multiple times.
In practical applications, the adjusting module 800 and the determining module 801 may be implemented by a Central Processing Unit (CPU), a microprocessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like in a terminal device.
Seventh embodiment
The embodiment of the invention also provides a charged device, which comprises the wireless charging adjusting device in any one of the sixth embodiment of the invention.
Here, the charged device includes, but is not limited to, a mobile terminal, and the mobile terminal may be a mobile phone, a tablet computer, a notebook computer, an MP3, an MP4, a digital photo frame, a digital camera, a projection device, a set-top box, a flat tv, a display, a speaker, an interphone, a navigator, a game console, a mouse, and the like.
Here, the secondary coil of the device to be charged may be laser engraved on the surface of the device to be charged, and the secondary coil of the device to be charged is pasted with a ferrite material shielding layer on a side away from the wireless charging device. For example, when the charged device is a mobile phone, the secondary coil of the mobile phone may be laser etched on the back case of the mobile phone, and the inside of the back case of the mobile phone is provided with a ferrite material shielding layer.
Here, the secondary coil of the device to be charged is made of a Flexible Printed Circuit board (FPC) material or wound with an enameled wire, the secondary coil of the device to be charged is attached to the surface of the device to be charged, and the secondary coil of the device to be charged is attached with a ferrite material shielding layer on a side close to the wireless charging device. For example, when the charged device is a mobile phone, the secondary coil of the mobile phone is adhered to the rear case of the mobile phone, and the secondary coil of the mobile phone is adhered with a ferrite material shielding layer on the side close to the wireless charging device.
The ferrite material shielding layer can effectively shield the magnetic field generated by the primary coil, so that the influence on the circuit inside the charged equipment can be avoided.
Further, the charging Circuit, the adjusting module and the determining module in the device to be charged are all located on a Printed Circuit Board (PCB) of the device to be charged, and then the PCB may be provided with a spring plate connected to the secondary coil.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (13)
1. A wireless charging adjustment method, the method comprising:
adjusting parameters of a charging circuit of the charged equipment for multiple times; after the parameters of the charging circuit of the charged device are adjusted each time, the charging signal intensity of the current charging position is obtained;
determining the parameters of the charging circuit of the charged equipment corresponding to the maximum value of the acquired charging signal intensity as the parameters of the charging circuit of the current charged equipment;
wherein, before adjusting parameters of a charging circuit of a charged device a plurality of times, the method further comprises: acquiring the intensity of a charging signal of a current charging position at the current moment;
the multiple adjustment of parameters of the charging circuit of the charged device comprises: and if the charging signal intensity of the current charging position at the current moment is not greater than the charging signal intensity threshold value, adjusting the parameters of the charging circuit of the charged equipment for multiple times.
2. The method of claim 1, wherein prior to the adjusting the parameter of the charged device charging circuit the plurality of times, the method further comprises: selecting a device to be adjusted from all devices of a charging circuit of charged equipment;
the parameter adjusting method for adjusting the charging circuit of the charged device each time comprises at least one of the following parameter adjusting methods: and replacing the device to be regulated with the device to be regulated to access the charging circuit of the charged equipment, connecting the device to be regulated and the device of the same kind in parallel, and connecting the device to be regulated and the device of the same kind in series.
3. The method according to claim 2, characterized in that the device to be regulated and the device of the same kind are both connected to the charging circuit of the charged equipment through an electronic switch; before the parameters of the charging circuit of the charged equipment are adjusted for multiple times, the electronic switch corresponding to the device to be adjusted is in a closed state;
the method for connecting a device of the same kind as the device to be regulated to the charging circuit of the charged equipment instead of the device to be regulated comprises the following steps: controlling the electronic switches corresponding to the devices to be adjusted to be switched off, and controlling the electronic switches corresponding to the devices of the same type to be switched on;
the parallel connection of the device to be adjusted and the device of the same kind comprises the following steps: and controlling the electronic switches corresponding to the devices of the same type to be closed in the branch circuit connected with the devices to be adjusted in parallel.
4. The method of claim 1, wherein prior to the adjusting the parameter of the charged device charging circuit the plurality of times, the method further comprises: selecting a device with adjustable parameters from all devices of a charging circuit of charged equipment as a device to be adjusted;
the method for adjusting the parameters of the charging circuit of the charged device each time comprises the following steps: and adjusting the adjustable parameters of the device to be adjusted.
5. The method of any of claims 1 to 4, wherein the parameters of the charged device charging circuit comprise parameters of an LC tank circuit in the charged device charging circuit;
the adjusting parameters of the charging circuit of the charged device for multiple times comprises: and adjusting parameters of an LC oscillating circuit in a charging circuit of the charged equipment for multiple times.
6. The method of claim 5, wherein the parameter of the charged device charging circuit comprises a resonant capacitance of an LC tank circuit in the charged device charging circuit;
the adjusting parameters of the charging circuit of the charged device for multiple times comprises: and sequentially taking each capacitor with different capacitance values as a resonant capacitor of an LC oscillating circuit in the charging circuit of the charged equipment.
7. A wireless charging adjustment device, the device comprising: an adjusting module and a determining module; wherein the content of the first and second substances,
the adjusting module is used for adjusting parameters of a charging circuit of the charged equipment for multiple times; after the parameters of the charging circuit of the charged device are adjusted each time, the charging signal intensity of the current charging position is obtained;
the determining module is used for determining the parameters of the charging circuit of the charged equipment corresponding to the maximum value of the acquired charging signal intensity as the parameters of the charging circuit of the current charged equipment;
the adjusting module is used for acquiring the charging signal intensity of the current charging position at the current moment before the parameters of the charging circuit of the charged device are adjusted for multiple times; and judging whether the charging signal intensity of the current charging position at the current moment is greater than a charging signal intensity threshold value, and if the charging signal intensity of the current charging position at the current moment is not greater than the charging signal intensity threshold value, adjusting parameters of a charging circuit of the charged equipment for multiple times.
8. The apparatus of claim 7, wherein the adjusting module is configured to select a device to be adjusted from among the devices of the charging circuit of the charged device before the parameters of the charging circuit of the charged device are adjusted for the plurality of times;
the parameter adjusting mode of the adjusting module for adjusting the charging circuit of the charged device each time comprises at least one of the following parameter adjusting modes: and replacing the device to be regulated with the device to be regulated to access the charging circuit of the charged equipment, connecting the device to be regulated and the device of the same kind in parallel, and connecting the device to be regulated and the device of the same kind in series.
9. The apparatus of claim 8, wherein the device to be adjusted and the same kind of device are connected to the charging circuit of the charged device through an electronic switch; before the parameters of the charging circuit of the charged equipment are adjusted for multiple times, the electronic switch corresponding to the device to be adjusted is in a closed state;
the adjusting module is used for controlling the electronic switches corresponding to the devices to be adjusted to be switched off and controlling the electronic switches corresponding to the devices of the same type to be switched on when the devices of the same type as the devices to be adjusted are switched in the charging circuit of the charged equipment in place of the devices to be adjusted;
the adjusting module is used for controlling the electronic switches corresponding to the devices of the same type to be closed in the branches connected in parallel with the devices to be adjusted when the devices to be adjusted are connected in parallel with the devices of the same type.
10. The apparatus of claim 7, wherein the adjusting module is configured to select an adjustable parameter device from among the devices of the charging circuit of the charged device as the device to be adjusted before the adjusting the parameter of the charging circuit of the charged device for multiple times;
the method for adjusting the parameter of the charging circuit of the charged device by the adjusting module each time comprises the following steps: and adjusting the adjustable parameters of the device to be adjusted.
11. The apparatus of any of claims 7 to 10, wherein the parameters of the charged device charging circuit comprise parameters of an LC tank circuit in the charged device charging circuit;
the adjusting parameters of the charging circuit of the charged device for multiple times comprises: and adjusting parameters of an LC oscillating circuit in a charging circuit of the charged equipment for multiple times.
12. The apparatus of claim 11, wherein the parameter of the charged device charging circuit comprises a resonant capacitance of an LC tank circuit in the charged device charging circuit;
and the adjusting module is used for sequentially using each capacitor with different capacitance values as a resonant capacitor of an LC oscillating circuit in the charging circuit of the charged equipment.
13. A charged device, characterized in that it comprises an apparatus according to any of claims 7 to 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304451.9A CN106300689B (en) | 2015-06-04 | 2015-06-04 | Wireless charging adjustment method and device and charged equipment |
| PCT/CN2015/085276 WO2016192192A1 (en) | 2015-06-04 | 2015-07-28 | Wireless charging adjustment method and apparatus, charged device and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304451.9A CN106300689B (en) | 2015-06-04 | 2015-06-04 | Wireless charging adjustment method and device and charged equipment |
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| CN106300689A CN106300689A (en) | 2017-01-04 |
| CN106300689B true CN106300689B (en) | 2021-02-09 |
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| CN201510304451.9A Active CN106300689B (en) | 2015-06-04 | 2015-06-04 | Wireless charging adjustment method and device and charged equipment |
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| WO (1) | WO2016192192A1 (en) |
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| CN111890933A (en) * | 2020-06-11 | 2020-11-06 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Battery management method and system for vehicle, vehicle and server |
| CN116148584B (en) * | 2023-04-18 | 2023-09-01 | 紫光同芯微电子有限公司 | Wireless charging parameter testing method, device, equipment and medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104362710A (en) * | 2014-10-20 | 2015-02-18 | 北京金山安全软件有限公司 | Wireless charger and wireless charging system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9124122B2 (en) * | 2011-05-18 | 2015-09-01 | Samsung Electronics Co., Ltd. | Wireless power transmission and charging system, and impedance control method thereof |
| US9190851B2 (en) * | 2011-06-24 | 2015-11-17 | Samsung Electro-Mechanics | Calibration and assignment processes in wireless power transfer systems |
| CN103236567B (en) * | 2013-04-18 | 2016-05-04 | 东莞宇龙通信科技有限公司 | The method of wireless charging, Apparatus and system |
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| CN104362710A (en) * | 2014-10-20 | 2015-02-18 | 北京金山安全软件有限公司 | Wireless charger and wireless charging system |
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| CN106300689A (en) | 2017-01-04 |
| WO2016192192A1 (en) | 2016-12-08 |
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