CN112542894A

CN112542894A - Wireless charging method, device, equipment and storage medium

Info

Publication number: CN112542894A
Application number: CN201910895013.2A
Authority: CN
Inventors: 孙长宇
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2021-03-23

Abstract

The embodiment of the disclosure provides a wireless charging method, a wireless charging device, wireless charging equipment and a storage medium, and relates to the technical field of wireless charging. The method comprises the following steps: the method comprises the steps that n sending coils are adopted to wirelessly charge the power receiving equipment respectively to obtain charging efficiencies corresponding to the n sending coils; selecting a target transmitting coil from the n transmitting coils according to the charging efficiency corresponding to the n transmitting coils; and wirelessly charging the power receiving equipment by adopting the target transmitting coil. The embodiment of the disclosure enables the power transmitting device to be adaptive to various power receiving devices of different models, and can ensure that the power receiving device is charged with optimal charging efficiency, thereby improving the charging efficiency of wireless charging.

Description

Wireless charging method, device, equipment and storage medium

Technical Field

The embodiment of the disclosure relates to the technical field of wireless charging, and in particular relates to a wireless charging method, a wireless charging device, wireless charging equipment and a storage medium.

Background

The wireless charging technology is a charging technology that transmits electric energy by using an electromagnetic induction principle, that is, by using an alternating magnetic field generated between coils.

In the related art, the wireless charging technology is applied to a mobile phone as an example. The mobile phone is placed on a vertical wireless charging device, a sending coil is arranged in the vertical wireless charging device, and a receiving coil is arranged in the mobile phone. The transmitting coil can generate a constantly changing magnetic field after being connected with a power supply, when the mobile phone is placed on the wireless charging equipment, the receiving coil in the mobile phone can induce the change of the magnetic field to generate current, and then the battery of the mobile phone is charged, so that wireless charging is realized.

In the above technology, the height of the center of the receiving coil is different for different models of mobile phones, and the height of the center of the transmitting coil is fixed in the vertical wireless charger, which may cause the distance between the center of the receiving coil and the center of the transmitting coil to be far, so that the efficiency of wireless charging cannot be ensured.

Disclosure of Invention

The embodiment of the disclosure provides a wireless charging method, a wireless charging device, a wireless charging equipment and a storage medium. The technical scheme is as follows:

in one aspect, an embodiment of the present disclosure provides a wireless charging method, which is applied to a power transmitting device, where the power transmitting device includes n transmitting coils, where n is an integer greater than 1;

the method comprises the following steps:

the n sending coils are adopted to wirelessly charge the power receiving equipment respectively to obtain charging efficiencies corresponding to the n sending coils;

selecting a target transmitting coil from the n transmitting coils according to the charging efficiency corresponding to the n transmitting coils;

and wirelessly charging the power receiving equipment by adopting the target transmitting coil.

Optionally, the wirelessly charging the power receiving device by using the n sending coils respectively to obtain the charging efficiencies corresponding to the n sending coils respectively includes:

for the ith sending coil in the n sending coils, wirelessly charging the power receiving equipment by adopting the ith sending coil, wherein i is a positive integer less than or equal to n;

acquiring the transmitting power of the ith transmitting coil and the receiving power of the power receiving equipment;

and calculating the charging efficiency corresponding to the ith sending coil according to the sending power of the ith sending coil and the receiving power of the power receiving equipment.

Optionally, the selecting a target transmission coil from the n transmission coils according to the charging efficiency corresponding to each of the n transmission coils includes:

selecting a maximum value of the charging efficiencies from the charging efficiencies corresponding to the n transmitting coils;

and determining the transmitting coil corresponding to the maximum value as the target transmitting coil.

Optionally, the method further comprises:

acquiring device information of the power receiving device;

and displaying position adjustment prompt information according to the equipment information of the power receiving equipment, wherein the position adjustment prompt information is used for guiding a user to adjust the placing position of the power receiving equipment on the power sending equipment.

Optionally, the displaying position adjustment prompt information according to the device information of the power receiving device includes:

acquiring a target adjusting parameter corresponding to the equipment information of the power receiving equipment from a preset corresponding relation, wherein the preset corresponding relation comprises a corresponding relation between at least one group of equipment information and the adjusting parameter;

and displaying the position adjustment prompt information according to the target adjustment parameter.

Optionally, the method further comprises:

and sending a position adjusting instruction to the power receiving equipment, wherein the position adjusting instruction is used for triggering the power receiving equipment to display position adjusting indication information, and the position adjusting indication information is used for guiding the user to adjust the placing position of the power receiving equipment on the power sending equipment.

On the other hand, the embodiment of the present disclosure further provides a power transmission device, where the power transmission device includes: the device comprises a backup plate, an adjusting assembly and a supporting assembly;

an included angle between the backup plate and a horizontal plane is larger than or equal to a preset angle, n sending coils are arranged in the backup plate, and n is an integer larger than 1;

the adjusting assembly is positioned at the lower end of the backup plate, is arranged on the front surface of the backup plate and is designed to move up and down;

the supporting component is arranged on the back face of the backup plate and connected with the back face of the backup plate.

Optionally, the adjustment assembly comprises a guide rail and a pallet;

the guide rail is fixed in the middle of the lower end of the front face of the backup plate;

the pallet may move up or down along the guide rail.

Optionally, at least two of the n transmit coils have different center heights.

Optionally, projection points of the center points of the n sending coils on the plane where the backup plate is located are located on the same straight line, and the straight line coincides with the central axis of the backup plate.

Optionally, the support assembly includes a column and a base, one end of the column is connected to the back of the backup plate, and the other end of the column is connected to the base.

Optionally, wherein the power transmitting apparatus further comprises: a processor, a display screen, and a communication component;

the processor is electrically connected with the display screen and the communication assembly respectively.

In another aspect, an embodiment of the present disclosure further provides a wireless charging apparatus, which is applied to a power transmitting device, where the power transmitting device includes n transmitting coils, where n is an integer greater than 1, and the apparatus includes:

the efficiency acquisition module is configured to wirelessly charge the power receiving equipment by adopting the n sending coils respectively to obtain charging efficiencies corresponding to the n sending coils;

a coil determination module configured to select a target transmission coil from the n transmission coils according to respective charging efficiencies corresponding to the n transmission coils;

a wireless charging module configured to wirelessly charge the power receiving device with the target transmitting coil.

Optionally, the efficiency obtaining module is configured to:

Optionally, the coil determination module is configured to:

Optionally, the apparatus further comprises:

an information acquisition module configured to acquire device information of the power reception device;

the information display module is configured to display position adjustment prompt information according to the device information of the power receiving device, wherein the position adjustment prompt information is used for guiding a user to adjust the placement position of the power receiving device on the power transmitting device.

Optionally, the information display module is configured to:

Optionally, the apparatus further comprises:

the instruction sending module is configured to send a position adjusting instruction to the power receiving device, where the position adjusting instruction is used to trigger the power receiving device to display position adjusting indication information, and the position adjusting indication information is used to guide the user to adjust the placement position of the power receiving device on the power sending device.

In another aspect, an embodiment of the present disclosure further provides a wireless charging device, where the wireless charging device includes:

a processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to:

the method comprises the steps that n sending coils are adopted to wirelessly charge power receiving equipment respectively, and charging efficiencies corresponding to the n sending coils are obtained;

In yet another aspect, the disclosed embodiments also provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the above method.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

through set up a plurality of sending coils in power sending equipment, adopt these a plurality of sending coils to carry out wireless charging to power receiving equipment respectively, acquire the charge efficiency that each sending coil corresponds, determine target sending coil from it, then adopt this target sending coil to carry out wireless charging to power receiving equipment, make power sending equipment can the multiple different models of power receiving equipment of adaptation, and can ensure to charge for power receiving equipment with optimal charge efficiency, wireless charging's charge efficiency has been improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

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 disclosure.

FIG. 1 is a schematic diagram illustrating a wireless charging business scenario in accordance with an exemplary embodiment;

fig. 2 is a flow chart illustrating a wireless charging method according to an example embodiment;

fig. 3 is a flow chart illustrating a wireless charging method according to another exemplary embodiment;

FIG. 4 is a schematic view of an adjustment direction shown in accordance with another exemplary embodiment;

FIG. 5 is a schematic view of an adjustment distance shown in accordance with another exemplary embodiment;

FIG. 6 is a schematic diagram illustrating a front side of a power transmitting device in accordance with an exemplary embodiment;

FIG. 7 is a side schematic view of a power transmitting device shown in accordance with an exemplary embodiment;

FIG. 8 is a block diagram illustrating a wireless charging device in accordance with an exemplary embodiment;

fig. 9 is a block diagram illustrating a wireless charging device in accordance with another exemplary embodiment;

fig. 10 is a schematic diagram illustrating a structure of a power transmission apparatus according to an exemplary embodiment;

fig. 11 is a schematic diagram illustrating a structure of a power receiving apparatus according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 is a schematic diagram illustrating a wireless charging business scenario in accordance with an example embodiment. Referring to fig. 1, the service scenario may include: a power transmission device 10 and a power reception device 20.

The power transmission device 10 refers to a device for supplying power to a powered device in a wireless charging system. The name of the power transmitting device 10 may be different in different traffic scenarios. For example, when the power transmission device 10 is used to wirelessly charge a portable electronic device such as a cell phone, a tablet, a wearable device, etc., the power transmission device 10 may be referred to as a charger, a charging tray, a power adapter, a wireless charger, etc.

The power receiving device 20 refers to a device for receiving power in wireless charging, that is, a power-using device. The power receiving device 20 may be any electric device supporting wireless charging, such as a mobile phone, a tablet computer, a wearable device, and other terminal devices, which is not limited in the embodiment of the present disclosure.

The technical scheme provided by the embodiment of the disclosure is suitable for wireless charging scenes of terminal equipment such as mobile phones, tablet computers and wearable equipment.

In addition, the power transmitting device 10 may include a processor, memory, transmitting coils, a display screen, speakers, communication components, power management components, and the like. A processor for receiving, processing and transmitting information or instructions to control the operation of the memory, transmitting coil, display screen, communication components, power management components, etc. in the power transmitting device 10, the processor may be the executing subject of the method embodiments described below; the memory is used for information storage; the sending coil is used for carrying out power transmission on the power receiving equipment 20, so as to realize wireless charging on the power receiving equipment 20; the display screen is used for displaying visual information such as pictures, characters, videos and the like; the loudspeaker is used for playing audio; the communication component is used for carrying out information transmission with the power receiving equipment; the power management components are used to provide the adapted current for the various powered components in the power transmitting device 10.

Wherein the communication component includes, but is not limited to, at least one of: a bluetooth component, a Wi-Fi (Wireless Fidelity) component. The Bluetooth component establishes Bluetooth connection with the power receiving equipment to realize information transmission; and the Wi-Fi component establishes a mobile hotspot connection with the power receiving equipment to realize information transmission, and the mobile hotspot can be a wireless local area network. The mobile hotspot connection is established between the Wi-Fi component and the power receiving equipment, and the mobile hotspot connection can be a mobile hotspot of the Wi-Fi component connected with the power receiving equipment or a mobile hotspot of the power receiving equipment connected with the Wi-Fi component.

In one possible implementation, the transmitting coil is used as a communication component for information transmission with the power receiving device. That is, the transmitting coil in the power transmitting device and the receiving coil in the power receiving device realize information transmission by mutually inducing the magnetic field changes of the coils according to a preset proprietary protocol.

Fig. 2 is a flow chart illustrating a wireless charging method according to an example embodiment. Referring to fig. 2, the method may be applied to the power transmission device 10 described above. The method may include the steps of:

step 201, performing wireless charging on the power receiving device by using n sending coils respectively to obtain charging efficiencies corresponding to the n sending coils, where n is an integer greater than 1.

In the embodiment of the present disclosure, the power transmitting device includes a plurality of transmitting coils, and each transmitting coil can operate independently to charge the power receiving device. Through setting up a plurality of sending coils for power transmitting equipment can the multiple power receiving equipment of different models of adaptation, provides the high-efficient wireless service of charging for the power receiving equipment of multiple different models.

In the embodiment of the present disclosure, the power transmission device may be a vertical power transmission device, or may be a lying power transmission device. The vertical power transmitting equipment is power transmitting equipment with a certain included angle between the front surface of an equipment panel where a transmitting coil is located and the horizontal plane, and can be upright power transmitting equipment or inclined power transmitting equipment, and when the included angle is 90 degrees, the upright power transmitting equipment is upright power transmitting equipment; when the angle is less than 90 °, the vertical power transmission device is a tilt vertical power transmission device. For a vertical power transmission device, the power reception device may be placed upright on the vertical power transmission device at the time of wireless charging. The lying type power transmission device refers to a power transmission device in which the front face of a device panel on which a transmission coil is located is parallel or nearly parallel to a horizontal plane. For the lying type power transmission apparatus, the power reception apparatus may be laid down on the lying type power transmission apparatus at the time of wireless charging.

The power receiving device is provided with a receiving coil, and when wireless charging is carried out, the power receiving device can be placed on the power transmitting device, and the transmitting coil in the power transmitting device carries out power transmission on the receiving coil in the power receiving device, so that the power receiving device is wirelessly charged.

The n transmitting coils can be arranged at different positions of the power transmitting equipment so as to achieve the purpose of adapting to various types of power receiving equipment. Because parameters such as the position, the size and the like of the receiving coil in the power receiving device may be different for different models of power receiving devices, the receiving coils of different power receiving devices can be adapted by arranging a plurality of transmitting coils at different positions of the power transmitting device, so as to achieve the purpose of maximally improving the charging efficiency. For example, the center positions of the n transmission coils may be different. The center position of the transmission coil refers to a position where the geometric center of the transmission coil is located in the power transmission device.

In the disclosed embodiment, when the power transmission device is a vertical power transmission device, the center heights of at least two of the n transmission coils are different. The center height of the transmitting coil may refer to a height of a geometric center of the transmitting coil with respect to a lowermost end of the power transmitting device.

In some possible embodiments, step 201 may include several sub-steps as follows:

1. and for the ith sending coil in the n sending coils, wirelessly charging the power receiving equipment by adopting the ith sending coil, wherein i is a positive integer less than or equal to n.

The distance between the center of the sending coil and the center of the receiving coil has a large influence on the charging efficiency, and when other factors are unchanged, the smaller the distance between the center of the sending coil and the center of the receiving coil is, the higher the wireless charging efficiency is; conversely, the greater the distance between the center of the transmitting coil and the center of the receiving coil, the lower the wireless charging efficiency. In order to ensure the efficiency of wireless charging, the distance between the center of the transmitting coil and the center of the receiving coil should be within 1 cm.

2. The transmission power of the i-th transmission coil and the reception power of the power reception device are acquired.

3. And calculating the charging efficiency corresponding to the ith transmitting coil according to the transmitting power of the ith transmitting coil and the receiving power of the power receiving equipment.

Optionally, for the ith transmitting coil, a ratio of the receiving power of the power receiving device to the transmitting power of the ith transmitting coil is calculated, and the ratio is determined as the charging efficiency corresponding to the ith transmitting coil.

Step 202, selecting a target transmitting coil from the n transmitting coils according to the charging efficiency corresponding to each of the n transmitting coils.

When the n transmitting coils wirelessly charge the power receiving device, the power transmitting device may obtain the charging efficiency corresponding to each transmitting coil, and select a target transmitting coil from the n transmitting coils according to the charging efficiency corresponding to each of the n transmitting coils. The target transmission coil may be one of the n transmission coils described above.

In some possible embodiments, a maximum value of the charging efficiencies is selected from among the charging efficiencies corresponding to the n transmission coils, and the transmission coil corresponding to the maximum value is determined as the target transmission coil. For example, one power transmitting device includes 3 transmitting coils, which are respectively numbered as a number 1 transmitting coil, a number 2 transmitting coil, and a number 3 transmitting coil, and the number 1 transmitting coil, the number 2 transmitting coil, and the number 3 transmitting coil are respectively used to wirelessly charge the power receiving device, the charging efficiencies of the number 1 transmitting coil, the number 2 transmitting coil, and the number 3 transmitting coil are respectively 50%, 80%, and 60%, the obtained 3 charging efficiencies are sorted from large to small, the sorting results are 80%, 60%, and 50%, and the number 2 transmitting coil corresponding to the first charging efficiency (i.e., 80%) as the target transmitting coil is selected.

And step 203, wirelessly charging the power receiving device by adopting the target transmitting coil.

After the power transmitting equipment selects the target transmitting coil, the target transmitting coil is adopted to wirelessly charge the power receiving equipment, and other transmitting coils do not work. For example, a switching assembly for controlling the operation state of each transmitting coil may be provided in the power transmitting apparatus, and the operating transmitting coil and the non-operating transmitting coil may be selectively controlled by the switching assembly.

To sum up, in the technical scheme provided by the embodiment of the present disclosure, by setting a plurality of sending coils in the power sending device, the plurality of sending coils are adopted to wirelessly charge the power receiving device respectively, the charging efficiency corresponding to each sending coil is obtained, the target sending coil is determined therefrom, and then the target sending coil is adopted to wirelessly charge the power receiving device, so that the power sending device can adapt to the power receiving devices of various different models, and the optimal charging efficiency can be ensured to charge the power receiving device, thereby improving the charging efficiency of wireless charging.

In an optional embodiment provided based on the embodiment of fig. 2, the step 202 may further include the following steps:

step 204, acquiring device information of the power receiving device.

The communication component acquires device information of the power receiving device and then sends the device information to the processor.

The device information is information that can be used to determine where the receiving coil is located in the power receiving device, and may include, but is not limited to, at least one of: the model of the power receiving device, size parameters, receiving coil position, etc.

And step 205, displaying the position adjustment prompt information according to the equipment information of the power receiving equipment.

The position adjustment prompt message is used for guiding a user to adjust the placement position of the power receiving equipment on the power transmitting equipment.

The device information may include a position parameter of a position of the center of the receiving coil in the power receiving device and a size parameter of the power receiving device, and according to the device information, the position parameter of the position of the center of the receiving coil in the power receiving device and the size parameter of the power receiving device may be directly obtained, and the position parameter may include a distance between the center of the receiving coil and each side of the power receiving device.

In some possible embodiments, the device information includes a device model, and the power receiving device stores therein a position parameter of a position of a center of a receiving coil in the power receiving device corresponding to the device model and a size parameter of the power receiving device.

According to the position parameter of the position of the center of the receiving coil in the power receiving device and the size parameter of the power receiving device, and the position parameter of the position of the target transmitting coil in the power transmitting device and the size parameter of the power transmitting device, which are stored in the power receiving device, the preset corresponding relation between the power receiving device and the power transmitting device can be obtained. Optionally, the preset corresponding relationship is used to indicate an optimal placement position of the power receiving device when the charging efficiency of the power receiving device in the power transmitting device is the highest. The preset correspondence may be stored in a memory of the power transmission device. The optimal placement position when the charging efficiency is the highest can be obtained by performing experimental tests on the power transmission equipment in a product development stage.

According to the preset corresponding relation, the position adjustment prompt information can be displayed so as to adjust the placing position of the power receiving equipment on the power transmitting equipment.

This step may include the sub-steps of:

1. and acquiring a target adjusting parameter corresponding to the equipment information of the power receiving equipment from a preset corresponding relation, wherein the preset corresponding relation comprises the corresponding relation between at least one group of equipment information and the adjusting parameter.

The preset correspondence may include an optimal relative positional relationship between each characteristic portion of the power reception device and each characteristic portion of the power transmission device, and the target adjustment parameter may be generated according to the optimal relative positional relationship.

For example, the above-described optimal relative positional relationship may include a relative distance between the tip of the power reception device and the tip of the power transmission device, a relative distance between the leftmost side of the power reception device and the leftmost side of the power transmission device, and the like.

The power transmitting device can further comprise a magnetic field induction component, the magnetic field induction component can induce the change situation of the magnetic field in the receiving coil, and the moving direction of the power receiving device and the real-time relative position of the receiving coil and the target transmitting coil can be determined according to the change situation of the magnetic field. Wherein the magnetic field inducing component in the power transmitting device may be a transmitting coil.

Optionally, the target adjustment parameter is updated in real time according to the real-time position information of the receiving coil.

2. And displaying position adjustment prompt information according to the target adjustment parameters.

Optionally, the power transmitting device includes a display screen, and the display screen may be an OLED (Organic Light-Emitting Diode) display screen or other display screens, which is not limited in this disclosure.

In some possible embodiments, the position adjustment prompt information includes, but is not limited to, at least one of: adjust direction, adjust distance, etc. The user can adjust the placing position of the power receiving equipment on the power transmitting equipment according to the position adjusting prompt information.

Optionally, when the charging efficiency of the power receiving device is the maximum, the placement position of the power receiving device on the power transmitting device is the optimal placement position. Wherein the adjustment direction may be a direction of a target transmitting coil center relative to a receiving coil center; the adjustment distance may be the distance between the center of the target transmit coil and the center of the receive coil.

In some possible embodiments, the power transmitting device further includes a speaker, and the user may further obtain the position adjustment prompt information by means of audio playing.

Step 206, sending a position adjustment instruction to the power receiving device.

The position adjusting instruction is used for triggering the power receiving equipment to display position adjusting indication information, the position adjusting indication information is used for guiding a user to adjust the placing position of the power receiving equipment on the power sending equipment, and the position adjusting instruction can be generated according to the equipment information. The generation manner of the position adjustment instruction may refer to the generation manner of the position adjustment prompt information, and is not described herein again.

Optionally, the communication component sends a position adjustment instruction to the power receiving device, and the power receiving device displays position adjustment indication information according to the position adjustment instruction. The user can adjust the position of the power receiving device on the power transmitting device according to the position adjustment indication information.

Optionally, the position adjustment instructions include, but are not limited to, at least one of: adjust direction, adjust distance, target transmit coil position, etc.

The above-mentioned adjustment direction and adjustment distance are exemplarily explained with reference to fig. 4 and 5: fig. 4 is a schematic diagram showing an adjustment direction according to another exemplary embodiment, referring to fig. 4, the target transmission coil is located directly above the receiving coil, so the upward arrow in fig. 4 indicates the adjustment direction of the power receiving device; fig. 5 is a schematic diagram of an adjustment distance according to another exemplary embodiment, and referring to fig. 5, a line segment with a double arrow in fig. 5 indicates an adjustment distance of a power receiving device.

In addition, the position adjustment prompting information displayed by the power transmitting device and the position adjustment indicating information displayed by the power receiving device may be the same or different, and the embodiment of the present disclosure does not limit this.

With respect to the

above steps

205 and 206, in a specific embodiment, the power transmitting device determines that the center of the receiving coil of the power receiving device is 5 mm below the center of the target transmitting coil, the display screen of the power transmitting device or the display information on the power receiving device is 5 mm upwards, and the user moves the power receiving device upwards by 5 mm through the adjusting component according to the position adjusting information, so that the center of the receiving coil and the center of the target transmitting coil coincide, thereby further improving the charging efficiency of wireless charging.

In the above specific embodiment, if the user moves 7 mm upward, the information displayed on the display screen of the power transmitting device or the power receiving device is updated to "2 mm downward", and the user can continue to perform the position adjustment operation on the power receiving device according to the information.

It is to be noted that, according to step 204, step 206 can be directly obtained, and with respect to step 205 and step 206, all steps may be executed in sequence, or only one step may be executed, which is not limited by the embodiment of the present disclosure.

In summary, in the technical scheme provided by the embodiment of the present disclosure, the position adjustment prompt information is obtained by obtaining the device information of the power receiving device, so that the position of the power receiving device can be finely adjusted, the center of the target sending coil and the center of the receiving coil are overlapped as much as possible, and the charging efficiency of wireless charging is further improved.

Referring to fig. 6 and 7 in combination, schematic diagrams of a power transmission device provided by the present disclosure are exemplarily shown, where fig. 6 is a schematic front view of the power transmission device, and fig. 7 is a schematic side view of the power transmission device. Referring to fig. 6 and 7, the power transmission apparatus includes: a backup plate 610, an adjustment assembly 620, and a support assembly 630.

The included angle between the backup plate 610 and the horizontal plane is greater than or equal to a preset angle, n sending coils 611 are arranged in the backup plate 610, and n is an integer greater than 1.

Optionally, the preset angle may be 60 °, 70 °, 75 °, 80 °, and 85 °, which is not limited in the embodiment of the present disclosure.

Optionally, the center heights of at least two transmitting coils 611 of the n transmitting coils 611 are different, so that the power transmitting apparatus can be adapted to more power receiving apparatuses of different models.

Optionally, projection points of the center points of the n transmitting coils 611 on the front surface of the backup plate 610 are located on the same straight line, and the straight line coincides with the central axis of the backup plate 610, so that the placement position of the power receiving device on the power transmitting device is convenient to adjust.

Optionally, the shape of the front surface of the backup plate 610 may be rectangular, circular, or elliptical, which is not limited in this embodiment.

The adjusting assembly 620 is located at the lower end of the backup plate 610, the adjusting assembly 620 is disposed on the front surface of the backup plate 610, and the adjusting assembly 620 is designed to be movable up and down.

Alternatively, the movable up and down design of the adjustment assembly 620 means that some or all of the structure in the adjustment assembly 620 can be repositioned up or down relative to the back plate 610.

Optionally, the adjusting assembly 620 includes a guide rail 621 and a supporting plate 622, the guide rail 621 is fixed in the middle of the lower end of the front surface of the backup plate 610, the supporting plate 622 can be used for adjusting the height position of the object on the power transmission device, so that the object is not easy to slide down and fall off, the guide rail can be used for adjusting the position of the supporting plate 622 along the guide rail 621, and the movement of the supporting plate 622 in other directions than the direction of the guide rail is limited.

Alternatively, the blade 622 may be moved up or down along the guide 621 so that the blade 622 is adjustable in position, improving flexibility in the position of the blade 622, and expanding the applicable range of the power transmission apparatus.

The support assembly 630 is disposed at the rear of the backup plate 610 and is connected to the rear of the backup plate 610.

Optionally, the supporting assembly 630 includes a post 631 and a base 632, one end of the post 631 is connected to the back of the backup plate 610, and the other end of the post is connected to the base 632, so as to maintain the inclination angle of the backup plate 610 and improve the supporting performance of the power transmitting apparatus.

Optionally, the power transmission device further includes: the processor, the display screen and the communication component enable the power transmitting device to have an information processing function, an information display function and a communication function.

The processor is electrically connected with the display screen and the communication assembly respectively, so that information can be transmitted between the processor and the display screen and between the processor and the communication assembly.

Optionally, the display screen may also display information such as time, weather, etc.

Optionally, the display screen may be located at the top end of the power transmission device, or may be located at the side of the power transmission device, which is not limited in this disclosure.

To sum up, in the power transmitting device provided in the embodiment of the present disclosure, the transmitting coils 611 in the backup plate 610 may wirelessly charge the power receiving device, and the center heights of the at least two transmitting coils 611 are different and the adjusting assembly 620 is designed to be movable up and down, so that the alignment accuracy of wireless charging is improved, the charging efficiency of wireless charging is improved, and the adaptation range of the power transmitting device to the power receiving device is expanded.

The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods. For details not disclosed in the embodiments of the apparatus of the present disclosure, refer to the embodiments of the method of the present disclosure.

Fig. 8 is a block diagram illustrating a wireless charging device according to an example embodiment. The device has the functions of realizing the method examples, and the functions can be realized by hardware or by hardware executing corresponding software. Referring to fig. 8, the apparatus 800 may include: an efficiency acquisition module 810, a coil determination module 820, and a wireless charging module 830.

The efficiency obtaining module 810 is configured to wirelessly charge the power receiving device by using the n transmitting coils, respectively, to obtain charging efficiencies corresponding to the n transmitting coils, respectively.

The coil determining module 820 is configured to select a target transmitting coil from the n transmitting coils according to the charging efficiency corresponding to each of the n transmitting coils.

The wireless charging module 830 configured to wirelessly charge the power receiving device using the target transmission coil.

In an exemplary embodiment, the efficiency acquisition module 810 is configured to:

In an exemplary embodiment, the coil determination module 820 is configured to:

In an exemplary embodiment, as shown in fig. 9, the apparatus 800 further includes an information acquisition module 840 and an information display module 850:

the information obtaining module 840 is configured to obtain device information of the power receiving device.

The information display module 850 is configured to display position adjustment prompt information according to the device information of the power receiving device, where the position adjustment prompt information is used to guide a user to adjust the placement position of the power receiving device on the power transmitting device.

In an exemplary embodiment, the information display module 850 is configured to:

In an exemplary embodiment, as shown in fig. 9, the apparatus 800 further comprises an instruction sending module 860.

The instruction sending module 860 is configured to send a position adjustment instruction to the power receiving device, where the position adjustment instruction is used to trigger the power receiving device to display position adjustment indication information, and the position adjustment indication information is used to guide the user to adjust the placement position of the power receiving device on the power sending device.

It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the above functional modules is illustrated, and in practical applications, the above functions may be distributed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

An exemplary embodiment of the present disclosure further provides a wireless charging device, which can implement the wireless charging method provided by the present disclosure. The device includes: a processor, and a memory for storing executable instructions for the processor. Wherein the processor is configured to:

Optionally, the processor is configured to:

Optionally, the processor is further configured to:

acquiring device information of the power receiving device;

Optionally, the processor is configured to:

Optionally, the processor is further configured to:

Fig. 10 is a schematic diagram illustrating a structure of a power transmission apparatus according to an exemplary embodiment. Referring to fig. 10, the power transmission apparatus 1000 may include: a power transmitting component 1001, a transmitter/receiver 1002, and a processor 1003.

The power transmitting component 1001 is used to wirelessly charge the power receiving device. The power transmitting component 1001 may wirelessly charge the power receiving device using electromagnetic induction. In the embodiment of the present disclosure, the constituent parts and the structure of the power transmission assembly 1001 are not limited.

The transmitter/receiver 1002 is used to support communication between the power transmitting device 1000 and other devices, such as a power receiving device and/or other power transmitting devices.

The processor 1003 controls and manages the operation of the power transmission apparatus 1000, and is configured to execute the processing procedure performed by the power transmission apparatus 1000 in the embodiment of the present disclosure. For example, the processor 1003 is further configured to perform various steps in the above method embodiments, and/or other steps of the technical solutions described in the embodiments of the present disclosure.

Further, the power transmitting apparatus 1000 may also include a memory 1004 for storing program codes and data for the power transmitting apparatus 1000, the memory 1004.

It is to be understood that fig. 10 shows only a simplified design of the power transmission device 1000. In practical applications, the power transmitting apparatus 1000 may include more or less components, and all power transmitting apparatuses that can implement the embodiments of the present disclosure are within the scope of the embodiments of the present disclosure.

Fig. 11 is a schematic diagram illustrating a structure of a power receiving apparatus according to an exemplary embodiment. Referring to fig. 11, the power reception apparatus 1100 may include: a power receiving component 1101, a transmitter/receiver 1102, and a processor 1103.

The power receiving component 1101 is configured to receive wireless charging power provided by a power transmitting apparatus. The power receiving component 1101 may receive the wireless charging power provided by the power transmitting apparatus by using an electromagnetic induction method. In the embodiment of the present disclosure, the constituent parts and the structure of the power receiving component 1101 are not limited.

The transmitter/receiver 1102 is used to support communication between the power-receiving device 1100 and other devices, such as power-transmitting devices and/or other power-receiving devices.

The processor 1103 performs control management on the actions of the power reception device 1100, and is configured to perform the processing performed by the power reception device 1100 in the embodiment of the present disclosure. For example, the processor 1103 is further configured to perform various steps in the above-described method embodiments, and/or other steps of the technical solutions described in the embodiments of the present disclosure.

Further, the power reception apparatus 1100 may further include a memory 1104, the memory 1104 being used to store program codes and data for the power reception apparatus 1100.

It is to be understood that fig. 11 shows only a simplified design of the power receiving device 1100. In practical applications, the power receiving device 1100 may include more or less components, and all power transmitting devices that can implement the embodiments of the present disclosure are within the scope of the embodiments of the present disclosure.

The disclosed embodiments also provide a non-transitory computer-readable storage medium having stored thereon a computer program that, when executed by a processor of a power transmitting device, implements the above-described wireless charging method.

Alternatively, the non-transitory computer-readable storage medium may be a ROM (Read-Only Memory), a RAM (Random Access Memory), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The wireless charging method is applied to power transmitting equipment, wherein the power transmitting equipment comprises n transmitting coils, and n is an integer greater than 1;

the method comprises the following steps:

2. The method according to claim 1, wherein the wirelessly charging the power receiving device by using the n transmitting coils respectively to obtain charging efficiencies corresponding to the n transmitting coils respectively comprises:

3. The method of claim 1, wherein selecting a target transmit coil from the n transmit coils according to the charging efficiency corresponding to each of the n transmit coils comprises:

4. The method according to any one of claims 1 to 3, further comprising:

acquiring device information of the power receiving device;

5. The method of claim 4, wherein displaying a location adjustment prompt according to the device information of the power receiving device comprises:

6. The method of claim 4, further comprising:

7. A power transmission device, characterized in that the power transmission device comprises: the device comprises a backup plate, an adjusting assembly and a supporting assembly;

8. The power transmitting device of claim 7, wherein the adjustment assembly includes a rail and a pallet;

the pallet may move up or down along the guide rail.

9. The power transmitting device of claim 7 wherein at least two of the n transmit coils differ in center height.

10. The power transmission device according to claim 7, wherein projection points of the center points of the n transmission coils on the front surface of the back plate are located on a same straight line, and the straight line coincides with the central axis of the back plate.

11. The power transmitting device of claim 7, wherein the support assembly includes a post and a base, one end of the post being connected to the back surface of the backup plate, the other end of the post being connected to the base.

12. The power transmission device according to any one of claims 7 to 10, characterized in that the power transmission device further comprises: a processor, a display screen, and a communication component;

13. A wireless charging apparatus, applied to a power transmitting device including n transmitting coils, where n is an integer greater than 1, the apparatus comprising:

14. The apparatus of claim 13, wherein the efficiency acquisition module is configured to:

15. The apparatus of claim 13, wherein the coil determination module is configured to:

16. The apparatus of any one of claims 13 to 15, further comprising:

17. The apparatus of claim 16, wherein the information display module is configured to:

18. The apparatus of claim 16, further comprising:

19. A wireless charging apparatus, the apparatus comprising:

a processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to:

20. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.