Wireless charging method and device, electronic device, and readable storage medium

By dynamically adjusting the magnetic levitation distance between wireless charging equipment and electronic equipment, the problems of low efficiency and overheating of long-distance wireless charging are solved, and more efficient charging and heat dissipation are achieved.

CN112838629BActive Publication Date: 2025-09-02BEIJING XIAOMI MOBILE SOFTWARE CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN201911171920.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-11-22
Publication Date
2025-09-02
Estimated Expiration
2039-11-22

Smart Images

  • Figure CN112838629B_ABST
    Figure CN112838629B_ABST
Patent Text Reader

Abstract

The present disclosure relates to a wireless charging method and device, an electronic device, and a readable storage medium. A wireless charging method, applied to a wireless charging device, includes: obtaining charging parameters of a target electronic device, wherein the charging parameters include the current temperature parameters of the target electronic device; and dynamically adjusting the magnetic levitation distance from the target electronic device according to the temperature parameter charging parameters. In this embodiment, after adjusting the magnetic levitation distance from the target electronic device, the magnetic field coupling strength between the wireless charging device and the target electronic device will change, thereby achieving the purpose of adjusting the charging efficiency of the target electronic device, and further achieving the effect of adjusting the heat dissipation speed of the target electronic device.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present disclosure relates to the field of wireless charging technology, and in particular to a wireless charging method and device, an electronic device, and a readable storage medium. Background Art

[0002] Currently, wireless charging devices can charge at a fixed distance, such as 20 cm. However, during long-distance charging, the receiving end of the wireless charging device cannot receive all the energy transmitted by the transmitting end. This results in low energy conversion efficiency during wireless charging, which increases the heat generated by the receiving end. Excessive temperatures at the receiving end and the electronic device being charged can, in turn, further affect the charging efficiency of the receiving end. Summary of the Invention

[0003] The present disclosure provides a wireless charging method and device, an electronic device, and a readable storage medium to address the deficiencies of related technologies.

[0004] According to a first aspect of an embodiment of the present disclosure, a wireless charging method is provided, which is applied to a wireless charging device. The method includes:

[0005] Acquiring charging parameters of a target electronic device, wherein the charging parameters include a current temperature parameter of the target electronic device;

[0006] The magnetic levitation distance from the target electronic device is dynamically adjusted according to the temperature parameter.

[0007] Optionally, dynamically adjusting the magnetic levitation distance from the target electronic device according to the temperature parameter includes:

[0008] Determining a corresponding temperature level according to the temperature parameter;

[0009] Obtaining charging adjustment parameters corresponding to the temperature level;

[0010] The magnetic levitation distance from the target electronic device is adjusted according to the charging adjustment parameter.

[0011] Optionally, dynamically adjusting the magnetic levitation distance from the target electronic device according to the temperature parameter includes:

[0012] When the current temperature value of the target electronic device corresponding to the temperature parameter is within a first set range, increasing the magnetic field strength of the magnetic field where the target electronic device is located according to the first charging adjustment parameter to increase the magnetic levitation distance with the target electronic device; or

[0013] When the current temperature value of the target electronic device corresponding to the temperature parameter is within a second set range, the magnetic field strength of the target electronic device is reduced according to the second charging adjustment parameter to reduce the magnetic levitation distance to the target electronic device.

[0014] Optionally, the method further includes:

[0015] When the magnetic levitation distance from the target electronic device is reduced according to the temperature parameter, the operating power of the heat dissipation device in the wireless charging device is increased to improve the heat dissipation speed of the wireless charging device and the target electronic device.

[0016] Optionally, before acquiring the charging parameters of the target electronic device, the method further includes:

[0017] Detecting whether there is an induced current in the transmitting coil of the wireless charging device;

[0018] If an induced current is detected, power is supplied to the transmitting coil to control the magnetic levitation distance of the target electronic device to be a set distance.

[0019] Optionally, the method further includes:

[0020] Acquiring interactive data information sent by a wireless communication module in the target electronic device;

[0021] According to the interactive data information

[0022] Control the audio device in the wireless charging device to play the corresponding voice data.

[0023] Optionally, the interactive data information includes at least one of the following: music, live broadcast, prompt information, and electronic device dynamics.

[0024] According to a second aspect of an embodiment of the present disclosure, there is provided a wireless charging apparatus, applied to a wireless charging device, the apparatus comprising:

[0025] A charging parameter acquisition module, configured to acquire charging parameters of a target electronic device, wherein the charging parameters include a current temperature parameter of the target electronic device;

[0026] The suspension distance adjustment module is used to dynamically adjust the magnetic suspension distance from the target electronic device according to the temperature parameter.

[0027] Optionally, the suspension distance adjustment module includes:

[0028] a temperature level determining unit, configured to determine a corresponding temperature level according to the temperature parameter;

[0029] an adjustment parameter acquisition unit, configured to acquire a charging adjustment parameter corresponding to the temperature level;

[0030] The levitation distance adjustment unit is configured to adjust the magnetic levitation distance between the target electronic device and the target electronic device according to the charging adjustment parameter.

[0031] Optionally, the suspension distance adjustment module includes:

[0032] a levitation distance increasing unit, configured to increase the magnetic field strength of the magnetic field in which the target electronic device is located according to a first charging adjustment parameter to increase the magnetic levitation distance with the target electronic device when the current temperature value of the target electronic device corresponding to the temperature parameter is within a first set range; or

[0033] a suspension distance reducing unit, configured to reduce the magnetic field strength of the magnetic field where the target electronic device is located according to a second charging adjustment parameter to reduce the magnetic suspension distance with the target electronic device when the current temperature value of the target electronic device corresponding to the temperature parameter is within a second set range;

[0034] Optionally, the device further comprises:

[0035] The operating power increasing module is used to increase the operating power of the heat dissipation device in the wireless charging device when the magnetic levitation distance from the target electronic device is reduced according to the temperature parameter, so as to improve the heat dissipation speed of the wireless charging device and the target electronic device.

[0036] Optionally, the device further comprises:

[0037] A current detection module, used to detect whether there is an induced current in the transmitting coil of the wireless charging device;

[0038] The current supply module is used to supply power to the transmitting coil when an induced current is detected, so as to control the magnetic levitation distance from the target electronic device to be a set distance.

[0039] Optionally, the device further comprises:

[0040] An interactive information acquisition module, configured to acquire interactive data information sent by the wireless communication module in the target electronic device;

[0041] The voice data playing module is used to control the audio device in the wireless charging device to play the corresponding voice data according to the interactive data information.

[0042] According to a third aspect of an embodiment of the present disclosure, there is provided an electronic device, including:

[0043] processor;

[0044] a memory for storing instructions executable by the processor;

[0045] The processor is configured to execute the executable instructions in the memory to implement the steps of the method of the first aspect.

[0046] According to a fourth aspect of an embodiment of the present disclosure, a readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0047] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0048] As can be seen from the above embodiments, in the embodiments of the present disclosure, by obtaining the charging parameters of the target electronic device, such as the temperature parameters; then, the magnetic levitation distance with the target electronic device can be dynamically adjusted according to the temperature parameters. It can be seen that in this embodiment, after adjusting the magnetic levitation distance of the target electronic device, the electromagnetic field coupling strength between the wireless charging device and the target electronic device will change, thereby achieving the purpose of adjusting the charging efficiency of the target electronic device, and then achieving the effect of adjusting the heat dissipation speed of the target electronic device. For example, if the magnetic levitation distance increases, the electromagnetic field coupling strength becomes weaker, the charging efficiency of the target electronic device becomes lower, and the heat generation increases, causing the heat dissipation speed to slow down; for another example, if the magnetic levitation distance decreases, the magnetic field coupling strength becomes stronger, the charging efficiency of the target electronic device becomes higher, and the heat generation of the target electronic device decreases, causing the heat dissipation speed to increase.

[0049] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0051] Figure 1 is a flow chart showing a wireless charging method according to an exemplary embodiment;

[0052] Figure 2 is a flow chart illustrating another wireless charging method according to an exemplary embodiment;

[0053] Figure 3 is a flow chart illustrating another wireless charging method according to an exemplary embodiment;

[0054] Figure 4 is a flow chart illustrating another wireless charging method according to an exemplary embodiment;

[0055] Figure 5is a flow chart illustrating another wireless charging method according to an exemplary embodiment;

[0056] Figures 6 to 11 is a block diagram of a wireless charging device according to an exemplary embodiment;

[0057] Figure 12 It is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0058] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0059] Currently, when wireless charging devices use the wireless charging protocol A4WP, the transmitter and receiver can transfer the energy of the transmitter to the receiver through resonance, and its resonant frequency is 6.78MHz. When the transmitter transmits energy to the receiver through the resonant frequency of 6.78MHz, after the receiving coil of the receiver receives the energy, the rectifier circuit will rectify the AC energy into DC energy, and then convert it into the voltage and current required by the load through the DC-DC circuit, and output it to the load. At the same time, the transmitter and the receiver communicate through the communication frequency of 2.4GHz to realize real-time information exchange between the receiver and the transmitter. If an emergency occurs during the charging process, such as overcurrent, overvoltage or high temperature, the transmitter or the receiver can cut off the relevant circuit in time to protect the charging device.

[0060] However, during long-distance charging, the receiving end of the wireless charging device cannot receive all the energy emitted by the transmitting end, that is, the energy conversion efficiency during wireless charging is low, resulting in increased heat generation at the receiving end. The excessive temperature of the receiving end and the electronic device to be charged will in turn further affect the charging efficiency of the receiving end.

[0061] To solve the above technical problems, the embodiments of the present disclosure provide a wireless charging method. The inventive concept is that by transmitting current in a coil in a wireless charging device, an electronic device can be suspended above it. In this way, the magnetic levitation height of the electronic device (that is, the magnetic levitation distance between the wireless charging device and the electronic device) can be adjusted according to the charging status of the electronic device, so that the heat dissipation speed of the electronic device meets the requirements of wireless charging, thereby achieving the purpose of improving the charging efficiency of the electronic device and realizing the effect of adjusting its heat dissipation speed.

[0062] It should be noted that in the embodiments of the present disclosure, the wireless charging device refers to a device that can radiate energy into space and can be considered the transmitter in the wireless charging system. The electronic device is the device to be wirelessly charged and can be considered the receiver in the wireless charging system. To ensure normal operation, the wireless charging device can be equipped with circuits such as overvoltage, overcurrent, and undervoltage protection. It is understood that the subsequent embodiments only involve modules or devices related to the wireless charging method.

[0063] Figure 1 FIG is a flow chart showing a wireless charging method according to an exemplary embodiment. Figure 1 A wireless charging method can be applied to a wireless charging device, including steps 101 to 102, wherein:

[0064] In step 101 , charging parameters of a target electronic device are acquired, where the charging parameters include a current temperature parameter of the target electronic device.

[0065] In this embodiment, both the wireless charging device and the target electronic device are equipped with Bluetooth modules, and the two Bluetooth modules can communicate with each other to achieve data transmission between the two. For ease of description, the Bluetooth modules of the wireless charging device and the target electronic device are referred to as a Bluetooth module and the other as a peer Bluetooth module to distinguish them. Of course, in some examples, both the wireless charging device and the target electronic device can be equipped with a Wi-Fi module, an infrared module, etc. to achieve the same communication function, and the corresponding solutions fall within the scope of protection of this disclosure.

[0066] In this embodiment, the target electronic device may be provided with a temperature detection module that can detect the current temperature within the target electronic device, particularly the temperature of the battery during charging and the temperature of other key circuits or components (such as a processor). The number and location of the temperature detection modules can be set based on the specific scenario and are not limited here.

[0067] In one example, the target electronic device may use its current temperature as a charging parameter of the electronic device.

[0068] In another example, a table of temperature and level relationships can be pre-set within the target electronic device. For example, if the current temperature parameter is greater than or equal to 55 degrees Celsius, the temperature level is considered excessive, and charging power can be reduced; if the current temperature parameter is greater than or equal to 30 degrees Celsius and less than 55 degrees Celsius, the temperature level is considered normal, and charging power can be maintained at the current level; and if the current temperature parameter is less than 30 degrees Celsius, the temperature level is considered low, and charging power can be increased. It is understood that technicians can adjust this table of temperature and level relationships based on specific scenarios, and such solutions fall within the scope of protection of this disclosure.

[0069] That is, in this embodiment, the charging parameter is related to the current temperature of the electronic device to be charged, and may include at least one of the following: the current temperature of the electronic device, and the current temperature level determined based on the current temperature.

[0070] In this embodiment, the Bluetooth module in the wireless charging device can communicate with the opposite Bluetooth module in the target electronic device, thereby acquiring the charging parameters of the target electronic device.

[0071] It should be noted that the wireless charging device can communicate with the target electronic device in real time to obtain charging parameters. Of course, the target electronic device can also communicate with the wireless charging device only when the temperature is too high or too low, and the wireless charging device can obtain charging parameters. Technicians can set it up according to specific scenarios. If the charging parameters can be obtained, the corresponding solution falls within the scope of protection of this disclosure.

[0072] For the convenience of description, in this embodiment, after receiving the charging parameters, the wireless charging device needs to adjust the magnetic levitation distance of the target electronic device.

[0073] In step 102, the magnetic levitation distance from the target electronic device is dynamically adjusted according to the temperature parameter.

[0074] In this embodiment, the wireless charging device can adjust the magnetic levitation distance with the target electronic device according to the temperature parameter, see Figure 2 The wireless charging device can determine the corresponding temperature level based on the temperature parameter (corresponding to step 201). The wireless charging device can then obtain the charging adjustment parameter corresponding to the temperature level (corresponding to step 202). The wireless charging device can then adjust the magnetic levitation distance between the wireless charging device and the target electronic device based on the charging adjustment parameter (corresponding to step 203).

[0075] The following describes in detail the adjustment of the magnetic levitation distance by taking the increase in height (ie, increase in magnetic levitation distance) and the decrease in height (ie, decrease in magnetic levitation distance) of the target electronic device as an example.

[0076] 1. Increased magnetic levitation distance

[0077] In one example, the wireless charging device can determine the meaning of the charging parameter. For example, the charging parameter indicates that the current temperature of the electronic device is within a first setting range. For example, the first setting range can be set to less than 30 degrees. In this way, the wireless charging device can increase the current of the transmitting coil in the wireless charging device to the first target current corresponding to the first setting range, so that the target electronic device rises from the current magnetic levitation distance to the first target distance corresponding to the first target current.

[0078] In this example, the first target current can be calculated by the target electronic device. Since the magnetic levitation distance of the target electronic device before adjustment (that is, the height of the target electronic device from the wireless charging device) is known, and the first target distance corresponding to the charging parameter (that is, the adjusted magnetic levitation distance) is also known. Therefore, based on the relationship between the magnetic levitation distance and gravity (such as G=mgh, G represents gravity, m represents the mass of the target electronic device, and h represents the magnetic levitation distance), the target electronic device can calculate the gravity of the target electronic device based on the first target distance. During the suspension process, the gravity of the target electronic device and the magnetic field force generated by the wireless charging device are equal in magnitude and opposite in direction. Based on the relationship between the magnetic field force and gravity, the target electronic device can calculate the first target current based on the relationship between the magnetic field force and the current. Finally, the wireless charging device can communicate with the target electronic device to obtain the above-mentioned first target current.

[0079] The wireless charging device can then adjust the current in the transmitting coil to a first target current, thereby increasing the magnetic levitation distance from the target electronic device to the first target distance. The wireless charging device can adjust the current in the transmitting coil by slowly increasing the current in a set (adjustable) step size, thereby slowly increasing the levitation height of the target electronic device, thereby increasing the magnetic levitation distance between the wireless charging device and the target electronic device.

[0080] It should be noted that the wireless charging device can also calculate the first target current. Considering that the target electronic device can use the electronic device's processor to calculate the first target current, thereby eliminating the need for calculation on the wireless charging device, this helps reduce the design difficulty of the wireless charging device. Technicians can configure it according to specific scenarios. If the target current can be calculated, the corresponding solution falls within the scope of protection of this disclosure.

[0081] In another example, the target electronic device can be equipped with a distance detection module, which can calculate the distance optically or using spatial position. For example, taking spatial position as an example, an acceleration sensor can be installed in the target electronic device, and the acceleration sensor can use the acceleration data of the target electronic device. The target electronic device can then calculate the movement distance of the target electronic device based on the acceleration data and the movement time of the target electronic device. The target distance of the target electronic device can then be obtained by adding the movement distance to the initial magnetic levitation distance.

[0082] Based on the above principles, see Figure 3 , the wireless charging device can determine the target distance (corresponding to Figure 3Then, the wireless charging device can increase the current of the transmitting coil in the wireless charging device, so that the magnetic field force generated by the transmitting coil is greater than the gravity of the target electronic device, that is, the target electronic device moves upward. During the movement, the target electronic device can calculate the distance between it and the wireless charging device in real time (initial magnetic levitation distance + current movement distance). After reaching the first target distance, the wireless charging device stops increasing the current (corresponding to Figure 3 (Step 302).

[0083] It should be noted that, in this example, the target electronic device can send charging parameters and acceleration data to the wireless charging device, and the wireless charging device can calculate the first target distance based on the charging parameters and the real-time magnetic levitation distance based on the acceleration data. By increasing the current in the transmitting coil, the magnetic levitation distance of the target electronic device can be brought to the first target distance, which can also achieve the corresponding effect. The corresponding scheme falls within the protection scope of this disclosure.

[0084] Second, the magnetic levitation distance is reduced

[0085] In one example, the wireless charging device can determine the meaning of the charging parameter. For example, the charging parameter indicates that the current temperature of the target electronic device is within a second set range. For example, the second set range can be set to greater than 50 degrees. In this way, the wireless charging device can reduce the current of the transmitting coil in the wireless charging device to the second target current corresponding to the second set range, so that the magnetic levitation distance with the target electronic device is reduced from the current magnetic levitation distance to the second target distance corresponding to the second target current.

[0086] In this example, the second target current can be calculated by the target electronic device. Since the magnetic levitation distance of the target electronic device is known before the adjustment, and the second target distance corresponding to the charging parameter (i.e., the adjusted magnetic levitation distance) is also known. Therefore, based on the relationship between the magnetic levitation distance and gravity (such as G=mgh, G represents gravity, m represents the mass of the target electronic device, and h represents the magnetic levitation distance), the target electronic device can calculate the gravity of the target electronic device based on the second target distance. Since the target electronic device is set in the electronic device, the mass (or gravity) of the target electronic device is the mass (or gravity) of the electronic device. During the suspension process, the gravity of the target electronic device and the magnetic field force generated by the wireless charging device are equal in magnitude and opposite in direction. Based on the relationship between the magnetic field force and gravity, the target electronic device can calculate the second target current based on the relationship between the magnetic field force and the current. Finally, the wireless charging device can communicate with the target electronic device to obtain the above-mentioned second target current.

[0087] The wireless charging device adjusts the current in the transmitting coil to a second target current, thereby reducing the magnetic levitation distance to the target electronic device to the second target distance. The wireless charging device can adjust the current by slowly increasing the set step size (adjustable), thereby slowly decreasing the magnetic levitation distance of the target electronic device, thereby reducing the magnetic levitation distance to the target electronic device. In practical applications, the second target distance can be 0, that is, the target electronic device is in contact with the wireless charging device, so that the heat of the target electronic device can be transferred to the wireless charging device, and increasing the heat dissipation area is beneficial to improving the heat dissipation speed of the target electronic device.

[0088] It should be noted that the wireless charging device can also calculate the second target current. Considering that the target electronic device can use the processor of the electronic device to calculate the second target current, thereby eliminating the need for calculation in the wireless charging device, this helps reduce the design difficulty of the wireless charging device. Technicians can configure it according to specific scenarios. If the target current can be calculated, the corresponding solution falls within the scope of protection of this disclosure.

[0089] In another example, the target electronic device can be equipped with a distance detection module that can calculate distance optically or using spatial position. For example, using spatial position as an example, an acceleration sensor can be installed in the target electronic device, and the acceleration sensor can use the acceleration data of the target electronic device. The target electronic device can then calculate the magnetic levitation distance of the target electronic device based on the acceleration data and the movement time of the target electronic device.

[0090] Based on the above principle, after determining the second target distance based on the charging parameters, the wireless charging device can reduce the current in the transmitting coil within the wireless charging device, thereby increasing the magnetic field force of the transmitting coil to be greater than the gravity of the target electronic device, that is, the target electronic device moves upward. During the movement process, the target electronic device can calculate the distance between it and the wireless charging device in real time (the initial magnetic levitation distance minus the current movement distance). Once the second target distance is reached, the wireless charging device stops reducing the current.

[0091] It should be noted that, in this example, the target electronic device can send charging parameters and acceleration data to the wireless charging device, and the wireless charging device can calculate the second target distance based on the charging parameters and the real-time magnetic levitation distance based on the acceleration data. By reducing the current in the transmitting coil, the magnetic levitation distance of the target electronic device can be brought to the second target distance, which can also achieve the corresponding effect. The corresponding scheme falls within the protection scope of this disclosure.

[0092] In practical applications, a heat dissipation device, such as a fan, can be installed within the wireless charging device. When the target electronic device is suspended above the wireless charging device, the heat dissipation device can operate at a first power. When the magnetic levitation distance of the target electronic device decreases or even contacts the wireless charging device, the heat dissipation device can be increased to a second power. The second power is greater than the first power, thereby accelerating the heat dissipation of the wireless charging device and indirectly improving the heat dissipation of the target electronic device.

[0093] In one embodiment, after the target electronic device is placed on the wireless charging device, the wireless charging device provides an initial current to the transmitting coil. At this time, the target electronic device is not suspended. Figure 4 In this embodiment, the wireless charging device detects whether there is an induced current in the transmitting coil (corresponding to step 401 in the figure). That is, the transmitting coil radiates energy outward through the electromagnetic field. After the target electronic device is placed on the wireless charging device, the receiving coil and the transmitting coil resonate and couple, so that energy can be received. At this time, there will be an induced current in the receiving coil. Correspondingly, due to the existence of the induced current, the receiving coil can be regarded as a transmitting coil that radiates energy outward, so that there will also be an induced current in the transmitting coil. In this way, the wireless charging device can detect the target electronic device by detecting the induced current. At this time, the wireless charging device can supply power to the transmitting coil with a specified current so that the electromagnetic field generated by the transmitting coil will suspend the target electronic device to a preset height (corresponding to Figure 4 Step 402) increases the magnetic levitation distance from the target electronic device to a preset initial magnetic levitation distance. This allows the transmitting coil to avoid generating an electromagnetic field before the target electronic device is placed, thus consuming no energy. After the target electronic device is placed, a smaller amount of energy is used to confirm its placement. Once the target electronic device is placed, a specified current is supplied to the transmitting coil, improving energy efficiency.

[0094] Considering that the target electronic device and the wireless charging device communicate via a wireless communication module, wherein the wireless communication module can be a Bluetooth module or a WiFi module, in another embodiment, the wireless charging device can be provided with an audio device, such as a speaker. Taking the Bluetooth module as an example, see Figure 5 The wireless charging device can obtain the interactive data information received by its own Bluetooth module, and the interactive data information is sent by the opposite Bluetooth module in the target electronic device to the Bluetooth module of the wireless charging device (corresponding to Figure 5 Step 501). The interactive data information includes at least one of the following: music, live broadcast, prompt information, and electronic device dynamics. Then, the wireless charging device controls the audio device to play the corresponding voice data (corresponding to the interactive data information) according to the interactive data information. Figure 5 In this way, this embodiment can increase the interactivity with the user during the charging process.

[0095] So far, in the embodiment of the present disclosure, the charging parameters of the electronic device to be charged are obtained; the charging parameters are related to the current temperature of the electronic device detected by the target electronic device of the wireless charging device; then, the magnetic levitation distance of the target electronic device above the wireless charging device is adjusted according to the charging parameters to adjust the heat dissipation speed of the target electronic device. It can be seen that in this embodiment, after adjusting the magnetic levitation distance of the target electronic device, the magnetic field coupling strength between the target electronic device and the wireless charging device will change, so as to achieve the purpose of adjusting the charging efficiency of the target electronic device, and then achieve the effect of adjusting the heat dissipation speed of the target electronic device. For example, if the magnetic levitation distance increases, the magnetic field coupling strength becomes weaker, the charging efficiency of the target electronic device becomes lower, and the heat generation of the target electronic device increases, causing the heat dissipation speed to slow down; for another example, if the magnetic levitation distance decreases, the magnetic field coupling strength becomes stronger, the charging efficiency of the target electronic device becomes higher, and the heat generation of the target electronic device decreases, causing the heat dissipation speed to increase.

[0096] Figure 6 FIG is a block diagram of a wireless charging device according to an exemplary embodiment. Figure 6 A wireless charging device can be applied to a wireless charging device, the device 600 comprising:

[0097] A charging parameter acquisition module 601 is configured to acquire charging parameters of a target electronic device, wherein the charging parameters include a current temperature parameter of the target electronic device;

[0098] The levitation distance adjustment module 602 is configured to dynamically adjust the magnetic levitation distance from the target electronic device according to the temperature parameter.

[0099] Figure 7 FIG is a block diagram of a wireless charging device according to another exemplary embodiment. Figure 7 ,exist Figure 6 Based on the wireless charging device shown, the suspension distance adjustment module 602 includes:

[0100] A temperature level determination unit 701 is configured to determine a corresponding temperature level according to the temperature parameter;

[0101] An adjustment parameter acquisition unit 702 is configured to acquire a charging adjustment parameter corresponding to the temperature level;

[0102] The levitation distance adjustment unit 703 is configured to adjust the magnetic levitation distance from the target electronic device according to the charging adjustment parameter.

[0103] Figure 8 FIG is a block diagram of a wireless charging device according to another exemplary embodiment. Figure 8 ,exist Figure 6 Based on the wireless charging device shown, the suspension distance adjustment module 602 includes:

[0104] The operating power increasing module 801 is configured to increase the operating power of the heat dissipation device in the wireless charging device when the magnetic levitation distance from the target electronic device is reduced according to the temperature parameter, so as to improve the heat dissipation speed of the target electronic device and the wireless charging device.

[0105] Figure 9 FIG is a block diagram of a wireless charging device according to another exemplary embodiment. Figure 9 ,exist Figure 6 Based on the wireless charging device shown, the suspension distance adjustment module 602 includes:

[0106] The levitation distance increasing unit 901 is configured to increase the magnetic field strength of the magnetic field in which the target electronic device is located according to the first charging adjustment parameter to increase the magnetic levitation distance with the target electronic device when the current temperature value of the target electronic device corresponding to the temperature parameter is within a first set range; or

[0107] The levitation distance reducing unit 902 is configured to reduce the magnetic field strength of the magnetic field where the target electronic device is located according to the second charging adjustment parameter to reduce the magnetic levitation distance with the target electronic device when the current temperature value of the target electronic device corresponding to the temperature parameter is within the second set range.

[0108] Figure 10 FIG is a block diagram of a wireless charging device according to another exemplary embodiment. Figure 10 ,exist Figure 6 Based on the wireless charging device shown, the device 600 further includes:

[0109] The current detection module 1001 is used to detect whether there is an induced current in the transmitting coil of the wireless charging device;

[0110] The current providing module 1002 is configured to supply power to the transmitting coil when an induced current is detected, so as to control the magnetic levitation distance from the target electronic device to be a set distance.

[0111] Figure 11 FIG is a block diagram of a wireless charging device according to an exemplary embodiment. Figure 11 ,exist Figure 6 Based on the wireless charging device shown, the device 600 further includes:

[0112] An interactive information acquisition module 1101 is configured to acquire interactive data information sent by a wireless communication module in the target electronic device;

[0113] The voice data playing module 1102 is configured to control the audio device in the wireless charging device to play the corresponding voice data according to the interactive data information.

[0114] It is understandable that the wireless charging device provided in the embodiments of the present disclosure corresponds to the above-mentioned wireless charging method. For specific contents, reference can be made to the contents of each embodiment of the method, which will not be repeated here.

[0115] At this point, in the embodiment of the present disclosure, by obtaining the charging parameters of the target electronic device, such as the temperature parameters, the magnetic levitation distance with the target electronic device can be dynamically adjusted according to the temperature parameters. It can be seen that in this embodiment, after adjusting the magnetic levitation distance of the target electronic device, the electromagnetic field coupling strength between the wireless charging device and the target electronic device will change, thereby achieving the purpose of adjusting the charging efficiency of the target electronic device, and then achieving the effect of adjusting the heat dissipation speed of the target electronic device. For example, if the magnetic levitation distance increases, the electromagnetic field coupling strength will weaken, the charging efficiency of the target electronic device will decrease, and the heat generation will increase, causing the heat dissipation speed to slow down; for another example, if the magnetic levitation distance decreases, the magnetic field coupling strength will increase, the charging efficiency of the target electronic device will increase, and the heat generation of the target electronic device will decrease, causing the heat dissipation speed to increase.

[0116] Figure 12 1 is a block diagram of an electronic device according to an exemplary embodiment. For example, electronic device 1200 may be a smartphone, computer, digital broadcast terminal, tablet device, medical device, fitness device, personal digital assistant, etc., including a wireless charging device and / or a target electronic device in a wireless charging device.

[0117] Reference Figure 12 , the electronic device 1200 may include one or more of the following components: a processing component 1202 , a memory 1204 , a power component 1206 , a multimedia component 1208 , an audio component 1210 , an input / output (I / O) interface 1212 , a sensor component 1214 , a communication component 1216 , and an image acquisition component 1218 .

[0118] The processing component 1202 generally controls the overall operation of the electronic device 1200, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1202 may include one or more processors 1220 to execute instructions. In addition, the processing component 1202 may include one or more modules to facilitate interaction between the processing component 1202 and other components. For example, the processing component 1202 may include a multimedia module to facilitate interaction between the multimedia component 1208 and the processing component 1202. When interacting, the processor 1220 may read executable instructions from the memory 1204 and execute them in the implementation. Figures 1 to 5 Steps of the method shown.

[0119] The memory 1204 is configured to store various types of data to support operations on the electronic device 1200. Examples of such data include instructions for any application or method operating on the electronic device 1200, contact data, phone book data, messages, pictures, videos, etc. The memory 1204 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0120] The power supply assembly 1206 provides power to various components of the electronic device 1200. The power supply assembly 1206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 1400. The power supply assembly may include a receiving coil that receives energy from a wireless charging device to wirelessly charge the electronic device, or the electronic device may serve as a power source to wirelessly charge other electronic devices.

[0121] The multimedia component 1208 includes a screen that provides an output interface between the electronic device 1200 and the target object. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the target object. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.

[0122] The audio component 1210 is configured to output and / or input audio signals. For example, the audio component 1210 includes a microphone (MIC), which is configured to receive external audio signals when the electronic device 1200 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 1204 or transmitted via the communication component 1216. In some embodiments, the audio component 1210 also includes a speaker for outputting audio signals.

[0123] The I / O interface 1212 provides an interface between the processing component 1202 and peripheral interface modules, such as a keyboard, a click wheel, buttons, etc.

[0124] The sensor assembly 1214 includes one or more sensors for providing various aspects of the status assessment of the electronic device 1200. For example, the sensor assembly 1214 can detect the open / closed state of the electronic device 1200, the relative positioning of components, such as the display screen and keypad of the electronic device 1200, and can also detect changes in the position of the electronic device 1200 or a component, the presence or absence of contact between the target object and the electronic device 1200, the orientation or acceleration / deceleration of the electronic device 1200, and changes in the temperature of the electronic device 1200.

[0125] The communication component 1216 is configured to facilitate wired or wireless communication between the electronic device 1200 and other devices. The electronic device 1200 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1216 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1216 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0126] In an exemplary embodiment, the electronic device 1200 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0127] In an exemplary embodiment, a non-transitory readable storage medium including instructions is also provided, such as a memory 1204 including instructions, and the instructions are executable by the processor 1220 of the electronic device 1200. For example, the non-transitory readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

[0128] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of the above-described embodiments that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0129] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A wireless charging method, characterized in that: Applied to a wireless charging device, the method includes: Acquiring charging parameters of a target electronic device, wherein the charging parameters include a current temperature parameter of the target electronic device; the target electronic device is a device to be wirelessly charged; Dynamically adjust the magnetic levitation distance from the target electronic device according to the temperature parameter: The method further comprises: When the magnetic levitation distance from the target electronic device is reduced according to the temperature parameter, the operating power of the heat dissipation device in the wireless charging device is increased to improve the heat dissipation speed of the wireless charging device and the target electronic device.

2. The wireless charging method according to claim 1, wherein: The dynamically adjusting the magnetic levitation distance from the target electronic device according to the temperature parameter includes: Determining a corresponding temperature level according to the temperature parameter; Obtaining charging adjustment parameters corresponding to the temperature level; The magnetic levitation distance from the target electronic device is adjusted according to the charging adjustment parameter.

3. The wireless charging method according to claim 1, wherein: The dynamically adjusting the magnetic levitation distance from the target electronic device according to the temperature parameter includes: When the current temperature value of the target electronic device corresponding to the temperature parameter is within a first set range, increasing the magnetic field strength of the magnetic field where the target electronic device is located according to the first charging adjustment parameter to increase the magnetic levitation distance with the target electronic device; or When the current temperature value of the target electronic device corresponding to the temperature parameter is within a second set range, the magnetic field strength of the target electronic device is reduced according to the second charging adjustment parameter to reduce the magnetic levitation distance to the target electronic device.

4. The wireless charging method according to claim 1, wherein: Before acquiring the charging parameters of the target electronic device, the method further includes: Detecting whether there is an induced current in the transmitting coil of the wireless charging device; If an induced current is detected, power is supplied to the transmitting coil to control the magnetic levitation distance from the target electronic device to be a set distance.

5. The wireless charging method according to claim 1, wherein: The method further comprises: Acquiring interactive data information sent by a wireless communication module in the target electronic device; The audio device in the wireless charging device is controlled to play corresponding voice data according to the interactive data information.

6. The wireless charging method according to claim 5, wherein: The interactive data information includes at least one of the following: music, live broadcast, prompt information, and electronic device dynamics.

7. A wireless charging device, characterized in that: Applied to wireless charging equipment, the device includes: A charging parameter acquisition module, configured to acquire charging parameters of a target electronic device, wherein the charging parameters include a current temperature parameter of the target electronic device; the target electronic device is a device to be wirelessly charged; a levitation distance adjustment module, configured to dynamically adjust the magnetic levitation distance from the target electronic device according to the temperature parameter; The operating power increasing module is used to increase the operating power of the heat dissipation device in the wireless charging device when the magnetic levitation distance from the target electronic device is reduced according to the temperature parameter, so as to improve the heat dissipation speed of the wireless charging device and the target electronic device.

8. The wireless charging device according to claim 7, wherein: The suspension distance adjustment module includes: a temperature level determining unit, configured to determine a corresponding temperature level according to the temperature parameter; an adjustment parameter acquisition unit, configured to acquire a charging adjustment parameter corresponding to the temperature level; The levitation distance adjustment unit is configured to adjust the magnetic levitation distance between the target electronic device and the target electronic device according to the charging adjustment parameter.

9. The wireless charging device according to claim 7, wherein: The suspension distance adjustment module includes: a levitation distance increasing unit, configured to increase the magnetic field strength of the magnetic field in which the target electronic device is located according to a first charging adjustment parameter to increase the magnetic levitation distance with the target electronic device when the current temperature value of the target electronic device corresponding to the temperature parameter is within a first set range; or The levitation distance reducing unit is configured to reduce the magnetic field strength of the magnetic field where the target electronic device is located according to the second charging adjustment parameter to reduce the magnetic levitation distance with the target electronic device when the current temperature value of the target electronic device corresponding to the temperature parameter is within a second set range.

10. The wireless charging device according to claim 7, wherein: The device further comprises: A current detection module, used to detect whether there is an induced current in the transmitting coil of the wireless charging device; The current supply module is used to supply power to the transmitting coil when an induced current is detected, so as to control the magnetic levitation distance from the target electronic device to be a set distance.

11. The wireless charging device according to claim 7, wherein: The device further comprises: An interactive information acquisition module, configured to acquire interactive data information sent by the wireless communication module in the target electronic device; The voice data playing module is used to control the audio device in the wireless charging device to play the corresponding voice data according to the interactive data information.

12. An electronic device, characterized in that: The electronic device comprises: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the executable instructions in the memory to implement the steps of the method according to any one of claims 1 to 6.

13. A readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

Citation Information

Patent Citations

  • Electric quantity indicating method for floating charging, device for floating charging, computer device and storage medium

    CN107516923A

  • Electronic device and wireless charging method and apparatus for electronic device

    US20170237278A1