CHARGING APPARATUS

A charging apparatus, a charging method, and an electronic device. The charging apparatus includes a housing, a first charging coil, a device detection module, and a coil adjusting module. The first charging coil, the device detection module, and the coil adjusting module are all disposed in the housing. The device detection module is connected to the coil adjusting module and configured to detect a device type of a to-be-charged device placed on an outer surface of the housing to obtain target device type information, and send the target device type information to the coil adjusting module. The coil adjusting module is connected to the first charging coil and configured to adjust a size of the first charging coil based on the target device type information.

TECHNICAL FIELD

This application relates to the field of electronic technologies, and specifically, to a charging apparatus.

BACKGROUND

With the rapid development of electronic technologies, the types of electronic devices are becoming increasingly diverse. The size differences among electronic devices of different types are significant, leading to similarly large variations in the sizes of the charging coils in the charging apparatuses adapted to the electronic devices.

For users, having multiple charging apparatuses adapted to different device types causes occupancy of a large space and inconvenience of transport. Using a single charging apparatus to charge multiple electronic devices of different device types may lead to reduced charging efficiency due to a mismatch between sizes of the electronic devices and the charging coil in the charging apparatus.

SUMMARY

An objective of embodiments of this application is to provide a charging apparatus.

According to a first aspect, an embodiment of this application provides a charging apparatus. The charging apparatus includes a housing, a first charging coil, a device detection module, and a coil adjusting module. The first charging coil, the device detection module, and the coil adjusting module are all disposed in the housing.

The device detection module is connected to the coil adjusting module and configured to detect a device type of a to-be-charged device placed on an outer surface of the housing to obtain target device type information, and send the target device type information to the coil adjusting module.

The coil adjusting module is connected to the first charging coil and configured to adjust a size of the first charging coil based on the target device type information, enabling an adjusted size of the first charging coil to match a size of a second charging coil in the to-be-charged device.

DETAILED DESCRIPTION

The terms “first”, “second”, and the like in this specification and claims of this application are used to distinguish between similar objects rather than to describe a specific order or sequence. It should be understood that data used in this way are interchangeable in appropriate circumstances such that the embodiments of this application can be implemented in other orders than the order illustrated or described herein. In addition, objects distinguished by “first” and “second” are generally of a same type, and the quantities of the objects are not limited, for example, there may be one or more first objects. In addition, “and/or” in the specification and claims represents at least one of connected objects, and the character “/” generally indicates that the contextually associated objects have an “or” relationship.

With reference to the accompanying drawings, a processor provided in the embodiments of this application is described below in detail by using specific embodiments and application scenarios thereof.

In an embodiment of this application, the charging apparatus may be a wireless charging apparatus, a charging apparatus with both a wireless charging function and a wired charging function, or any type of charging apparatus constructed based on the following wireless charging principle. The to-be-charged device may be various types of electronic devices that need to be charged frequently, such as mobile phones, tablets, or smart watches.

The principle of wireless charging can be based on the mutual inductance transmission capability of two coils located respectively inside a charging apparatus and a to-be-charged device, to charge the to-be-charged device through the charging apparatus. During specific implementation, L1 may be used to represent a first charging coil in the charging apparatus, and L2 may be used to represent a second charging coil in the to-be-charged device. Then, L1 may be used as a transmitting end of electrical energy, while L2 may be used as a receiving end of electrical energy.

If the charging current of L1 is denoted as IP, the induced magnetic flux Q generated by IPon L2 can be calculated using the following formula:

In formula (1), M represents a mutual inductance between L1 and L2. M can be obtained using the following formula:

In formula (2), u0represents a magnetic constant, dl1 represents an infinitesimal line element of L1, dl2 represents an infinitesimal line element of L2, X1 represents a position of the infinitesimal line element dl1, and X2 represents a position of the infinitesimal line element dl2.

From formula (2), it can be known that when the sizes of L1 and L2 are the same and L1 is parallel to L2, M can reach its maximum value.

An induced electromotive force UMgenerated on L2 due to the induced magnetic flux φ can be calculated using the following formula:

It can be known from the foregoing formula that the induced electromotive force UMis positively proportional to the induced magnetic flux φ. When the current IPis a constant, the sizes of L1 and L2 are the same, and L1 is parallel to L2, M can reach its maximum value. In addition, the induced electromotive force UMalso reaches its maximum value, leading to the highest charging efficiency of the charging apparatus.

During specific implementation, if the size difference between L1 and L2 is large, the mutual inductance between L1 and L2 is relatively small, leading to low charging efficiency of the charging apparatus.

When it is necessary to meet charging needs of electronic devices of different types in a case that a user needs to carry various electronic devices for business or personal travel or the user uses various electronic devices at home, if multiple charging apparatuses adapted to each electronic device are used to charge the various electronic devices, the multiple charging apparatuses occupy a large space, and it is cumbersome to organize and find the charging apparatuses. Therefore, a charging apparatus is needed to provide charging services for electronic devices of different types.

If the charging apparatus uses only one L1 to charge electronic devices of multiple different types, although the charging apparatus can be expanded in compatibility, it can be adapted to only one device type. The difference between the L1 and individual L2 in other electronic devices of various types may be large, reducing the charging efficiency.

If the charging apparatus is provided with multiple L1s in different sizes to charge electronic devices of different types, although the compatibility and the charging efficiency of the charging apparatus can be improved, one charging apparatus including L1s of different sizes significantly increases the occupation volume and production costs of the charging apparatus.

To overcome the foregoing defect, an embodiment of this application provides a charging apparatus, and reference may be made toFIG.1.FIG.1is a first schematic structural diagram of a charging apparatus according to an embodiment of this application. The upper part and the lower part respectively show the internal structure of the charging apparatus at two different views.

As shown in the figure, the charging apparatus includes a housing101, a first charging coil102, a device detection module, and a coil adjusting module. The first charging coil102, the device detection module, and the coil adjusting module are all disposed in the housing101.

The device detection module is connected to the coil adjusting module and configured to detect a device type of a to-be-charged device placed on an outer surface of the housing101, obtain target device type information, and send the target device type information to the coil adjusting module.

The coil adjusting module is connected to the first charging coil102and configured to adjust a size of the first charging coil102based on the target device type information, enabling an adjusted size of the first charging coil102to match a size of a second charging coil in the to-be-charged device.

The housing101may be a housing of a shell of the charging apparatus, and the housing101may accommodate at least the following structures: the first charging coil102, the device detection module, and the coil adjusting module. The housing101may be cubic, rectangular, or in any other preset shape.

The first charging coil102may be a coil with an unfixed winding trajectory. For example, the first charging coil102may have a winding trajectory that changes with the tightness of the first charging coil102, with a large coil area in a loose state or a small coil area in a tight state. The first charging coil102may alternatively be laid on a fixed coil support, enabling the winding trajectory of the first charging coil102to be fixed by the coil support, and have a coil area that may be presented by a in the case of N winding turns and a coil area that may be presented by b in the case of M winding turns (M>N), where b>a. In addition, the coil area and the number of winding turns of the first charging coil102have a predetermined correspondence.

The coil support may be a coil track support fixed onto an inner surface of the housing and configured for laying the first charging coil102. In a case that the first charging coil102is laid on the coil support, the tightness of the first charging coil102is fixed. In a case that the number of winding turns of the first charging coil102laid on the coil support increases, the coil area of the first charging coil102increases; and in a case that the number of winding turns of the first charging coil102laid on the coil support decreases, the coil area of the first charging coil102decreases.

The device detection module may be a near field communication (NFC) or a sensor, or may be another apparatus or a module with a device detection function and/or a device type recognizing function. The device detection module detects the device type of the to-be-charged device, obtains the target device type information, and sends the target device type information to the coil adjusting module, such that the coil adjusting module can determine a corresponding target coil size based on the target device type information.

When the charging apparatus charges the to-be-charged device, the to-be-charged device may be placed in a specified region of the outer surface of the charging apparatus, such that the second charging coil in the to-be-charged device is parallel to the first charging coil102, and a distance between a center of the first charging coil102and a center of the second charging coil is less than or equal to a preset distance threshold.

Before the device detection module detects the device type, the device detection module may be further configured to detect whether there is an electronic device in the specified region of the outer surface. The NFC module is used as an example for description. For example, when a mobile phone is placed in the specified region of the outer surface of the charging apparatus, a second charging coil in the mobile phone can send a communication signal to the first charging coil102according to the wireless charging standard protocol, and the NFC module can detect the communication signal and determine an electronic device placed in the specified region of the outer surface based on the communication signal.

The NFC module is used as an example for describing how the device detection module detects the device type. For example, when a tablet is placed in the specified region of the outer surface of the charging apparatus, a second charging coil in the tablet can send a communication signal to the first charging coil102according to the wireless charging standard protocol, and the NFC module can detect the communication signal and determine, based on the communication signal, that a device type of the electronic device sending the communication signal is a tablet.

The coil adjusting module may be a motor assembly105or other module or apparatus that can adjust the coil area.

Optionally, the coil adjusting module includes a motor assembly105, and the charging apparatus further includes a rotation wheel106. The motor assembly105is connected to the rotation wheel106; and the first charging coil (102) is wound on the rotation wheel106.

FIG.2is a second schematic structural diagram of a charging apparatus according to an embodiment of this application.

As shown inFIG.2, the motor assembly105is connected to the rotation wheel106; and the first charging coil102is wound on the rotation wheel103. The motor assembly105, by connecting to the rotation wheel106, can drive the rotation wheel to rotate clockwise or anticlockwise, so as to change the area of the first charging coil102wound on the rotation wheel.

The first charging coil102wound on the rotation wheel may be a coil with an unfixed winding trajectory. For example, in a case that the motor assembly105drives the rotation wheel to rotate clockwise, the first charging coil102tightens, and the area of the charging coil of the first charging coil102decreases; and in a case that the motor assembly105drives the rotation wheel to rotate anticlockwise, the first charging coil102loosens, and the area of the charging coil of the first charging coil102increases.

The first charging coil102wound on the rotation wheel may be alternatively laid on the fixed coil support, enabling the winding trajectory of the first charging coil102to be fixed by the coil support, and the coil area of the first charging coil102is determined by the number of winding turns of the first charging coil102within the coil support. For example, in a case that the motor assembly105drives the rotation wheel to rotate clockwise, the number of winding turns of the first charging coil102in the coil support increases, and the area of the charging coil of the first charging coil102increases. In a case that the motor assembly105drives the rotation wheel to rotate anticlockwise, the number of winding turns of the first charging coil102in the coil support decreases, and the area of the charging coil of the first charging coil102decreases.

Optionally, the charging apparatus further includes a rotation wheel103, and a first fixing structure106and a line support107of the rotation wheel103. The first fixing structure106is connected to an axis1031of the rotation wheel103, and fixes the axis1031to an inner surface of the housing101. A first end of the line support107is connected to the first fixing structure106, and a second end of the line support107is connected to a first position in the housing101. The first charging coil102is wound on the rotation wheel103. A first-stage line1021of the first charging coil102is laid on the line support107. The first-stage line1021is a coil line of the first charging coil102close to an end of the axis1031; and a second-stage line1022of the first charging coil102is connected to the first position in the housing101. The second-stage line1022is a coil line of the first charging coil102away from an end of the axis1031.

Detailed description is made below with reference toFIGS.1,2, and5.FIG.5is a fifth schematic structural diagram of a charging apparatus according to an embodiment of this application.

As shown inFIG.2, the first fixing structure106of the rotation wheel103is connected to the axis1031of the rotation wheel103, so as to fix the axis1031of the rotation wheel103on the inner surface of the housing101.

Referring toFIGS.1,2, and5, the axis1031of the rotation wheel103is located at the center of the first fixing structure106. As shown inFIG.5, an end of the first-stage line1021of the first charging coil102close to the axis can be considered as passing through the axis.

The line support107may be a line track support for laying the first-stage line1021of the first charging coil102. A first end of the line support107is connected to the first fixing structure106, and a second end of the line support107is connected to a first position in the housing101.

As shown inFIGS.1and2, in a case that the charging apparatus is a cuboid and its cross section is a square, the first position may be a position where a distance to a specified corner of the charging apparatus in the shape of cuboid is less than a preset distance threshold, allowing the line support107between the first position and the axis1031to be parallel to the first charging coil. TakingFIG.1as an example, in a cross section in the charging apparatus provided in the charging apparatus embodiment inFIG.1, the cross section in the charging apparatus may be a square, and the first position may be at the top-right corner of the square. The first position may alternatively be another preset position in the housing101.

The first-stage line1021of the first charging coil102may be a coil positive line, and the second-stage line1022of the first charging coil102may be a coil negative line, where the two are interchangeable. As shown inFIG.1, the first-stage line1021may be a coil line of the first charging coil102close to an end of the axis1031; and the second-stage line1022is a coil line of the first charging coil102away from an end of the axis1031.

An end of the first-stage line1021away from the axis1031may be connected to the first position; and an end of the second-stage line1022away from an end of the axis1031may be connected to the first position.

Optionally, the end of the second-stage line1022away from the axis1031is fixedly connected to the first position in the housing101. In a case that the rotation wheel103rotates, the rotation wheel103drives the first-stage line1021to move along the line support107, changing the tightness of the first charging coil102.

FIG.3is a third schematic structural diagram of a charging apparatus according to an embodiment of this application.FIG.4is a fourth schematic structural diagram of a charging apparatus according to an embodiment of this application. InFIGS.3and4, the tightness of the first charging coil102changes. If x1 is used to represent the tightness level of the first charging coil102inFIG.3, x2 represents the tightness level of the first charging coil102inFIG.4, larger values of x1 and x2 indicate looser levels, and smaller values of x1 and x2 indicate tenser levels, x1>x2, that is, the first charging coil102inFIG.3is looser than the first charging coil102inFIG.4.

The end of the second-stage line1022away from the axis1031is fixedly connected to the first position in the housing101, and regardless of clockwise rotation or anticlockwise rotation of the rotation wheel103, the end of the second-stage line1022away from the axis1031does not move along with the rotation of the rotation wheel103. In this case, the rotation wheel103can drive the first-stage line1021to move along the line support107, changing the tightness of the first charging coil102.

For example, the rotation wheel103in rotation can drive the first-stage line1021to move along the line support107in a direction away from the axis and close to the first position, and the end of the second-stage line1022away from the axis1031stays still, so that the tightness of the first charging coil102changes, making the first charging coil102to be tighter and have a decreased coil area.

In another example, the rotation wheel103in rotation can drive the first-stage line1021to move along the line support107in a direction close to the axis and away from the first position, and the end of the second-stage line1022away from the axis1031stays still, so that the tightness of the first charging coil102changes, making the first charging coil102to be looser and have an increased coil area.

Optionally, the end of the first-stage line1021away from the axis1031is fixedly connected to the first position in the housing101. In a case that the rotation wheel103rotates, the rotation wheel103drives the second-stage line1022to tighten or loosen, changing the tightness of the first charging coil102.

The end of the first-stage line1021away from the axis1031is fixedly connected to the first position in the housing101, and regardless of clockwise rotation or anticlockwise rotation of the rotation wheel103, the end of the first-stage line1021away from the axis1031does not move along with the rotation of the rotation wheel103. In this case, the rotation wheel103can drive the second-stage line1022to move, enabling the first charging coil to tighten or loosen.

For example, the rotation wheel103in rotation can drive the second-stage line1022to move in a direction away from the first position, and the end of the first-stage line1021away from the axis1031stays still, so that the tightness of the first charging coil102changes, making the first charging coil102to be looser and have an increased coil area.

In another example, the rotation wheel103in rotation can drive the second-stage line1022to move in a direction close to the first position, and the end of the first-stage line1021away from the axis1031stays still, so that the tightness of the first charging coil102changes, making the first charging coil102to be tighter and have a decreased coil area.

Optionally, the charging apparatus further includes a coil support, and the first charging coil102is laid at the coil support. The end of the first-stage line1021away from the axis1031is fixedly connected to the first position in the housing101. In a case that the rotation wheel103rotates, the rotation wheel103drives the second-stage line1022to move along the coil support, changing the number of winding turns of the first charging coil102around the axis1031.

The coil support may be a coil track support fixed onto an inner surface of the housing and configured for laying the first charging coil102. In a case that the first charging coil102is laid on the coil support, the tightness of the first charging coil102is fixed, and the coil area is determined based on the number of winding turns around the axis1031.

The end of the first-stage line1021away from the axis1031is fixedly connected to the first position in the housing101, and regardless of clockwise rotation or anticlockwise rotation of the rotation wheel103, the end of the first-stage line1021away from the axis1031does not move along with the rotation of the rotation wheel103. In this case, the rotation wheel103can drive the second-stage line1022to move, changing the number of winding turns of the first charging coil102around the axis1031.

For example, the rotation wheel103in rotation can drive the second-stage line1022to move in a direction away from the first position, and the end of the first-stage line1021away from the axis1031stays still, increasing the number of winding turns of the first charging coil102around the axis1031and its coil area.

In another example, the rotation wheel103in rotation can drive the second-stage line1022to move in a direction close to the first position and the end of the first-stage line1021away from the axis1031stays still, decreasing the number of winding turns of the first charging coil102around the axis1031and its coil area.

Optionally, the charging apparatus further includes a coil support, and the first charging coil102is laid on the coil support. The end of the second-stage line1022away from the axis1031is fixedly connected to the first position in the housing101. In a case that the rotation wheel103rotates, the rotation wheel103drives the first-stage line1021to move along the line support107, changing the number of winding turns of the first charging coil102around the axis1031.

The end of the second-stage line1022away from the axis1031is fixedly connected to the first position in the housing101, and regardless of clockwise rotation or anticlockwise rotation of the rotation wheel103, the end of the second-stage line1022away from the axis1031does not move along with the rotation of the rotation wheel103. In this case, the rotation wheel103can drive the first-stage line1021to move along the line support107, changing the number of winding turns of the first charging coil102around the axis1031.

For example, the rotation wheel103in rotation can drive the first-stage line1021to move along the line support107in a direction away from the axis and close to the first position, and the end of the second-stage line1022away from the axis1031stays still, decreasing the number of winding turns of the first charging coil102around the axis1031and its coil area.

For another example, the rotation wheel103in rotation can drive the first-stage line1021to move along the line support107in a direction close to the axis and away from the first position, and the end of the second-stage line1022away from the axis1031stays still, increasing the number of winding turns of the first charging coil102around the axis1031and its coil area.

Optionally, the charging apparatus further includes at least two coil limiting rods104. A first end of each of the coil limiting rods104is connected to the first fixing structure106; a second end of each of the coil limiting rods104is connected to a corresponding second position in the housing101; and each of the coil limiting rods104is parallel to the first charging coil102.

The at least two coil limiting rods104may include four coil limiting rods104. The at least two coil limiting rods104may alternatively be another preset quantity of coil limiting rods104.

FIG.1is used as an example for description. In the charging apparatus embodiment shown inFIG.1, the cross section of the first fixing structure106may be circular, an internal interface of the housing101may be square, and the charging apparatus may include four coil limiting rods104on the top, bottom, left, and right. The first end of each coil limiting rod104may be connected to the first fixing structure106and has a different connection point. For example, the coil limiting rod104located above may be connected to a topmost point of the circle corresponding to the first fixing structure106, and the coil limiting rod104on the left may be connected to a leftmost point of the circle corresponding to the first fixing structure106. The second end of each coil limiting rod104may be connected to a corresponding second position in the housing101. For example, the coil limiting rod104located above may be connected to a middle point on the upper side of the square corresponding to the housing101, and the coil limiting rod104on the right may be connected to a middle point on the right side of the square corresponding to the housing101.

As shown inFIG.1, in each two coil limiting rods104adjacent to each other, a connection line from a connection point between the first coil limiting rod and the first fixing structure106to a central point of the first fixing structure106and a connection line from a connection point between the second coil limiting rod and the first fixing structure106to a central point of the first fixing structure106can form an included angle of 90 degrees.

Each coil limiting rod104is connected to both the first fixing structure106and the housing101, allowing the first charging coil102to be fixed to the inner surface of the housing101and the first charging coil102to remain planar. In other words, regardless of an increase or decrease in the number of winding turns of the first charging coil102or the change in the tightness of the first charging coil102, the first charging coil102is fixed to the inner surface and remains planar, avoiding the problem that the change in the number of winding turns or the tightness of the first charging coil102may lead to coil displacement or chaotic coil winding.

In the embodiment as shown inFIG.1, the charging apparatus includes a housing, a first charging coil, a device detection module, and a coil adjusting module. The first charging coil, the device detection module, and the coil adjusting module are all disposed in the housing. The device detection module is connected to the coil adjusting module and configured to detect a device type of a to-be-charged device placed on an outer surface of the housing to obtain target device type information, and send the target device type information to the coil adjusting module. The coil adjusting module is connected to the first charging coil and configured to adjust a size of the first charging coil based on the target device type information, enabling an adjusted size of the first charging coil to match a size of a second charging coil in the to-be-charged device. According to the technical solution of this embodiment of this application, the first charging coil in the charging apparatus can be adjusted flexibly based on the device type of the to-be-charged device, enabling the size of the first charging coil to match the size of the second charging coil in the to-be-charged device, such that one charging apparatus is used to efficiently charge to-be-charged devices of different device types, thus improving the charging efficiency and compatibility of the charging apparatus.

Based on the technical concept same as in the foregoing charging apparatus embodiment, this application further includes a charging method. The charging method is applicable to the charging apparatus provided in the foregoing charging apparatus embodiment.FIG.6is a schematic flowchart of a charging method according to an embodiment of this application.

With reference toFIG.6, step S602: Check, through NFC, whether a to-be-charged device is placed.

The NFC module in the charging apparatus detects whether there is an electronic device in a specified region of an outer surface of the charging apparatus. If there is, the electronic device is used as the to-be-charged device. The to-be-charged device may be various device types of electronic devices that need to be charged frequently, such as mobile phones, tablets, or smart watches.

It should be noted that if a fully charged electronic device, that is, an electronic device without a charging requirement, is placed in the specified region of the outer surface of the charging apparatus, it is also detected by the NFC module and used as the to-be-charged device. However, actually, the charging apparatus will not charge the electronic device in a case that the electronic device is in full charge.

S604: Enable NFC mode detection to detect whether the to-be-charged device is a small-area device based on a detection result.

The charging apparatus can be preset with multiple charging states, and under each charging state, can charge a to-be-charged device of a corresponding device size most efficiently.

For example, the multiple charging states can include a first charging state and a second charging state. The to-be-charged devices with different device sizes and types may include large-area devices and small-area devices. Under the first charging state, the coil state of the first charging coil may be a large-area state; and under the second charging state, the coil state of the first charging coil may be a small-area state. The charging apparatus under the first charging state can charge the large-area devices most efficiently; and the charging apparatus under the second charging state can charge the small-area devices most efficiently.

The large-area devices and the small-area devices may be preset. For example, the large-area devices may be tablets, the small-area devices may be mobile phones, and an area of a tablet is larger than that of a mobile phone.

To determine how the charging state of the charging apparatus is adjusted, the charging apparatus can enable NFC mode detection to detect whether a to-be-charged device is a small-area device based on a detection result.

Step S606: Determine whether the coil state of the first charging coil is the small-area state.

Step S608: Start the motor assembly and drive the rotation wheel to rotate clockwise, enabling the rotation wheel to wind the coil tightly and making a switch to the small-area state.

In a case that the coil state of the first charging coil is the large-area state, the motor assembly is started and the rotation wheel is driven to rotate clockwise, enabling the rotation wheel to wind the coil tightly and making a switch to the small-area state.

Step S610: Charge the to-be-charged device under the small-area state.

In addition, during specific implementation, in the process of the charging apparatus charging the to-be-charged device, the charging power of the to-be-charged device is not constant. For example, when the remaining power of the mobile phone is 20%, the charging power of the charging apparatus for charging the mobile phone is a first power, and when the remaining power of the mobile phone is 85%, the charging power of the charging apparatus for charging the mobile phone is a second power. The second power is less than the first power, and a difference between the first power and the second is less than or equal to a preset power threshold. It can be understood that during charging, the charging power may be different at a different status, but the difference is not large. After step608is performed to enable the small-area state after adjustment to match the size of the to-be-charged device, in the process of the charging apparatus in the small-area state charging the to-be-charged device, the first charging coil can be adjusted by a small amount based on the charging power of the to-be-charged device, enabling an adjusted size of the first charging coil to match the charging power.

Step S612: Determine whether charging has been completed.

If so, the procedure is completed.

Step S614: Determine whether a coil state of a first charging coil is a large-area state.

Step S616: Start a motor assembly and drive a rotation wheel to rotate anticlockwise, enabling the rotation wheel to loosen the coil and making a switch to the large-area state.

In a case that the coil state of the first charging coil is the small-area state, the motor assembly is started to drive the rotation wheel rotate clockwise, enabling the rotation wheel to wind the coil tightly and making a switch to the large-area state.

Step S618: Charge the to-be-charged device under the large-area state.

During specific implementation, after step616is performed to enable the adjusted large-area state to match the size of the to-be-charged device, in the process of the charging apparatus in the large-area state charging the to-be-charged device, the first charging coil can be adjusted by a small amount based on the charging power of the to-be-charged device, enabling an adjusted size of the first charging coil to match the charging power.

The foregoing charging method embodiment is essentially similar to the charging apparatus embodiment, and therefore is described briefly. For related information, refer to descriptions of the related parts in the apparatus embodiment.

Optionally, as shown inFIG.7, an embodiment of this application provides an electronic device700, including a processor701, a memory702, and a program or instructions stored in the memory702and capable of running on the processor701, where when the program or instructions are executed by the processor701, the processes of the foregoing charging method embodiment are implemented, with the same technical effects achieved. To avoid repetition, details are not repeated herein.

The processor701can include each structure in the foregoing charging apparatus embodiment, and details are not described herein again.

It should be noted that the electronic device in this embodiment of this application includes the foregoing mobile electronic device and non-mobile electronic device.

FIG.8is a schematic diagram of a hardware structure of an electronic device according to an embodiment of this application.

The electronic device800includes but is not limited to components such as a radio frequency unit801, a network module802, an audio output unit803, an input unit804, a sensor805, a display unit806, a user input unit807, an interface unit808, a memory809, and a processor810.

The processor810in the figure can include each structure in the foregoing processor embodiment, and details are not repeated herein. Those skilled in the art can understand that the electronic device800may further include a power supply (for example, a battery) that supplies power to various components. The power supply may be logically connected to the processor810through a power management system, so that functions such as charge and discharge management and power consumption management are implemented by using the power management system. The structure of the electronic device shown inFIG.8does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or some components may be combined, or there may be a different component layout. Details are not repeated herein.

The processor810can be used to implement the processes of the foregoing charging method embodiment, with the same technical effects achieved. To avoid repetition, details are not repeated herein.

It can be understood that in this embodiment of this application, the input unit804may include a graphics processing unit (GPU)8041and a microphone8042. The graphics processing unit8041processes image data of a still picture or video obtained by an image capture apparatus (such as a camera) in a video capture mode or an image capture mode. The display unit806may include a display panel8061, and the display panel8061may be configured in a form of a liquid crystal display, an organic light-emitting diode, and the like. The user input unit807includes a touch panel8071and other input devices8072. The touch panel8071is also referred to as a touchscreen. The touch panel8071may include two parts: a touch detection apparatus and a touch controller. The other input devices8072may include but are not limited to a physical keyboard, a function key (such as a volume control key or an on/off key), a trackball, a mouse, and a joystick. Details are not described herein. The memory809may be configured to store software programs and various data which include but are not limited to an application program and an operating system. The processor810may integrate an application processor and a modem processor. The application processor mainly processes an operating system, a user interface, an application program, and the like. The modem processor mainly processes wireless communication. It can be understood that the modem processor may alternatively be not integrated in the processor810.

An embodiment of this application provides a readable storage medium, where the readable storage medium has a program or instructions store thereon, and when the program or instructions are executed by a processor, the processes of the foregoing charging method embodiment are implemented, with the same technical effects achieved. To avoid repetition, details are not repeated herein.

The processor is the processor in the electronic device in the foregoing embodiments. The readable storage medium includes a computer-readable storage medium, for example, a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc.

Another embodiment of this application provides a chip, where the chip includes a processor and a communications interface, the communications interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the processes of the foregoing charging method embodiment, with the same technical effects achieved. To avoid repetition, details are not described herein again.

It should be noted that term “include”, “comprise”, or any of their variants are intended to cover a non-exclusive inclusion, so that a process, a method, an article, or a device that includes a list of elements not only includes those elements but also includes other elements that are not expressly listed, or further includes elements inherent to such process, method, article, or device. Without more constraints, an element preceded by “includes a . . . ” does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be noted that the scope of the method and the apparatus in the embodiments of this application is not limited to executing the functions in an order shown or discussed, but may also include executing the functions in a substantially simultaneous manner or in a reverse order, depending on the functions involved. For example, the described methods may be performed in an order different from that described, and steps may alternatively be added, omitted, or combined. In addition, features described with reference to some examples may be combined in other examples.