Electronic equipment protection shell, electronic equipment, electronic accessory and charging method

Abstract

The invention relates to an electronic equipment protection shell, electronic equipment, an electronic accessory and a charging method, relates to the technical field of electronic equipment, and aims to improve the charging stability of the electronic accessory. The electronic equipment protection shell comprises a protection shell body, a first connection contact, a second connection contact and an energy processor. The energy processor is arranged in the protection shell body and is coupled with the first connection contact and the second connection contact. The energy processor is configured to generate a first current in response to an external magnetic field. The first connecting contacts and the second connecting contacts are arranged at intervals; the first connecting contact and the second connecting contact are exposed out of the outer surface of the protective shell body so as to transmit the first current to the outside of the protective shell body.

Description

Technical Field

[0001] This disclosure relates to the field of electronic device technology, and in particular to an electronic device protective case, electronic device, electronic accessory, and charging method. Background Technology

[0002] Currently, mobile phone screen sizes are getting larger and larger. For example, there are more and more foldable phone models, and the unfolded screen size is usually larger than that of a phablet. To make it easier for users to use large-screen phones, they can use a stylus to operate the screen.

[0003] As an electronic accessory for mobile phones, styluses typically contain a battery that powers various components. The phone charges the stylus by providing charging current to the battery. However, when the phone is encased in a protective case, the charging stability of the stylus becomes less reliable. Summary of the Invention

[0004] This application provides an electronic device protective case, an electronic device, electronic accessories, and a charging method. When the electronic device is covered with an electronic device protective case, the stability of charging electronic accessories can be improved.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, a protective case for an electronic device is provided. The protective case includes a case body, a first contact point, a second contact point, and an energy processor. The energy processor is disposed inside the case body and coupled to the first and second contact points. The energy processor is configured to generate a first current in response to an external magnetic field. The first and second contact points are spaced apart from each other; both the first and second contact points are exposed on the outer surface of the case body to transmit the first current to the outside of the case body.

[0007] This electronic device protective case is used to charge electronic components. The electronic components include a first battery, and a first electrode contact and a second electrode contact, respectively coupled to the first battery. The first electrode contact is used to couple with the first electrode contact, and the second electrode contact is used to couple with the second electrode contact.

[0008] The energy processor can convert external wireless energy into electrical energy. For example, the energy processor can generate a first current based on an external magnetic field. This external magnetic field can be a first magnetic field generated by an electronic device or a second magnetic field generated by a wireless charging dock.

[0009] The first contact point can be coupled to the energy processor via a wire, and the second contact point can also be coupled to the energy processor via a wire. In this way, the electrical energy generated by the energy processor can be transmitted to both the first and second contact points.

[0010] Therefore, when the electronic component is inserted into the protective shell of the electronic device, such that the first contact point is coupled to the first electrode contact point and the second contact point is coupled to the first electrode contact point, the electrical energy generated by the energy processor can be transferred to the first battery, thereby enabling the charging of the first battery.

[0011] In this embodiment, the electronic device's protective casing includes an energy processor and two connecting contacts. These two contacts are coupled to a first electrode contact and a second electrode contact on the electronic component, respectively. The energy processor generates a first current in an external magnetic field. The coupling of the energy processor and the two connecting contacts allows the first current to flow through the connecting contacts to the electrode contacts when the energy processor generates the first current, thereby charging the first battery in the electronic component. This direct coupling of the two connecting contacts on the electronic device's protective casing to the two electrode contacts on the electronic component avoids incomplete power supply to the electrode contacts on the electronic component, improving the charging stability of the electronic component.

[0012] In some feasible embodiments of the first aspect, the electronic device housing further includes a sensor. The sensor is disposed inside the housing body and is coupled to both a first contact point and a second contact point. The sensor is configured to emit a first detection signal when a loop is formed between the first and second contact points.

[0013] The first contact point can be coupled to the sensor via a wire, and the second contact point can also be coupled to the sensor via a wire. Therefore, when the first contact point is coupled to the first electrode contact and the second contact point is coupled to the second electrode contact, a circuit is formed between the first and second contact points. In this way, the sensor can detect whether the first contact point is coupled to the first electrode contact and whether the second contact point is coupled to the second electrode contact by checking whether a circuit is formed between the first and second contact points, thereby determining whether the electronic component is inserted into the connector.

[0014] For example, if the sensor detects that the first connecting contact is not coupled to the first electrode contact and / or the second connecting contact is not coupled to the second electrode contact, the sensor determines that the electronic component is not inserted into the connector and is not in the charging position (hereinafter referred to as "electronic component not in place"). If the sensor detects that the first connecting contact is coupled to the first electrode contact and the second connecting contact is coupled to the second electrode contact, the sensor determines that the electronic component is inserted into the connector and is in the charging position (hereinafter referred to as "electronic component in place").

[0015] When the sensor determines that the electronic component is in place, it can emit a first detection signal to indicate that the electronic component is in place. When the sensor determines that the electronic component is not in place, it can emit a second detection signal to indicate that the electronic component is not in place. Alternatively, in some examples, the sensor may not emit a signal when it determines that the electronic component is not in place.

[0016] In this embodiment, by utilizing the characteristic of the sensor to send a first detection signal when it detects the presence of electronic components, the electronic device can detect the presence of electronic components and automatically activate the wireless reverse charging function, causing the energy transceiver to generate a first magnetic field. Then, the energy processor in the electronic device's protective case uses the first magnetic field to generate a first current, which is then supplied to the electronic components, thereby automatically charging the electronic components.

[0017] In this way, users only need to manually insert the electronic accessories into the protective case of the electronic device, and the electronic device can automatically charge the electronic accessories, reducing the user's operation steps and improving the convenience of charging electronic accessories.

[0018] In some feasible embodiments of the first aspect, the protective housing body includes: a housing cover, a housing frame, and a connecting platform. An energy processor is disposed within the housing cover. The housing frame is connected to the edge of the housing cover. The connecting platform is connected to the outer surface of the housing frame, and a first contact point and a second contact point are located on the connecting platform.

[0019] The housing and housing frame can be used to connect to electronic devices. The connector can be used to connect to electronic accessories.

[0020] For example, an electronic device protective case is fitted onto the electronic device, with the electronic device contacting the case cover and frame, thereby defining the relative position between the electronic device and the electronic device protective case. An electronic component is inserted into a connector, contacting the connector, thereby defining the relative position between the electronic component and the electronic device protective case. Specifically, when the electronic component is inserted into the connector, the first electrode contact of the electronic component is connected to the first connecting contact point of the electronic device protective case, and the second electrode contact of the electronic component is connected to the second connecting contact point of the electronic device protective case.

[0021] In this embodiment, the cover is in close contact with the electronic device, and the energy processor is disposed inside the cover, ensuring close contact between the energy processor and the energy transceiver in the electronic device. This improves the efficiency of wireless power transmission between the electronic device and its protective case. Furthermore, the electronic components are connected to the connector, placing them on the outside of the frame and ensuring they do not interfere with wireless power transmission between the electronic device and its protective case, thus enhancing the reliability of wireless transmission between them.

[0022] In some feasible embodiments of the first aspect, the energy processor includes a second coil. The second coil can be coupled to both the first and second connecting contacts simultaneously. The second coil can generate a first current based on an external magnetic field, such that the first current generated by the second coil can be transmitted to the coupling between the first and second connecting contacts.

[0023] The second coil has a simple structure, which reduces the cost of the energy processor.

[0024] In some feasible embodiments of the first aspect, the sensor includes an induction coil; the energy processor includes a second coil. The number of turns of the induction coil is less than the number of turns of the second coil. Understandably, the unfolded area of ​​the second coil can be greater than the unfolded area of ​​the induction coil. This improves the efficiency of the electronic device's protective casing in sensing an external magnetic field to generate a first current, thereby enhancing the effectiveness of the electronic device's wireless reverse charging function.

[0025] In a second aspect, a charging method is provided. The charging method is applied to a protective case for an electronic device as described in any of the first aspects. The method includes: an energy processor generating a first current in response to an external magnetic field, and transmitting the first current to the outside of the protective case body using a first contact point and a second contact point.

[0026] When a user inserts an electronic accessory into a protective case for an electronic device, the first electrode contact on the electronic accessory is coupled to the first connection contact point of the protective case for the electronic device, and the second electrode contact on the electronic accessory is coupled to the second connection contact point of the protective case for the electronic device.

[0027] When the user believes the electronic components are in place, they operate the electronic device to activate its reverse wireless charging function. In response to the user's operation, a second current output from the second battery is transmitted to the first coil, causing the first coil to generate a first magnetic field using the second current output from the second battery.

[0028] The energy processor can generate a first current based on a first magnetic field formed by the energy transceiver. This first current generated by the energy processor can then be transmitted to a first connecting contact and a second connecting contact. With the first connecting contact coupled to a first electrode contact and the second connecting contact coupled to a second electrode contact, the electrical energy generated by the energy processor can be transmitted to the first and second electrode contacts of the electronic component.

[0029] The electronic components receive electrical energy from the first electrode contact and the second electrode contact, and supply it to the first battery, thereby charging the first battery.

[0030] In this embodiment, the electronic device's protective casing includes an energy processor and two connecting contacts. These two contacts are coupled to a first electrode contact and a second electrode contact on the electronic component, respectively. The energy processor generates a first current in an external magnetic field. The coupling of the energy processor and the two connecting contacts allows the first current to flow through the connecting contacts to the electrode contacts when the energy processor generates the first current, thereby charging the first battery in the electronic component. This direct coupling of the two connecting contacts on the electronic device's protective casing to the two electrode contacts on the electronic component avoids incomplete power supply to the electrode contacts on the electronic component, improving the charging stability of the electronic component.

[0031] In some feasible embodiments of the second aspect, the electronic device protective housing also includes a sensor. The method further includes, in the event that a loop is formed between the first and second contact points, the sensor transmitting a first detection signal to the electronic device.

[0032] As previously explained, when the first electrode contact on the electronic component is coupled to the first connecting contact point of the electronic device's protective casing, and the second electrode contact on the electronic component is coupled to the second connecting contact point of the electronic device's protective casing, a circuit is formed between the first and second connecting contacts. At this point, the sensor can emit a first detection signal.

[0033] When the electronic device detects the first detection signal, it transmits the second current output by the second battery to the energy transceiver, so that the energy transceiver uses the second current output by the second battery to form the first magnetic field.

[0034] The energy processor can generate a first current based on a first magnetic field formed by the energy transceiver. This first current generated by the energy processor can then be transmitted to a first connecting contact and a second connecting contact. Since the first connecting contact is coupled to a first electrode contact, and the second connecting contact is coupled to a second electrode contact, the electrical energy generated by the energy processor can be transmitted to the first and second electrode contacts of the electronic component.

[0035] Electronic components provide electrical energy to the first battery, thereby charging the first battery.

[0036] In this embodiment, by utilizing the characteristic of the sensor to send a first detection signal when it detects the presence of electronic components, the electronic device can detect the presence of electronic components and automatically activate the wireless reverse charging function, causing the energy transceiver to generate a first magnetic field. Then, the energy processor in the electronic device's protective case uses the first magnetic field to generate a first current, which is then supplied to the electronic components, thereby automatically charging the electronic components.

[0037] In this way, users only need to manually insert the electronic accessories into the protective case of the electronic device, and the electronic device can automatically charge the electronic accessories, reducing the user's operation steps and improving the convenience of charging electronic accessories.

[0038] Thirdly, an electronic device is provided. The electronic device is used to connect to a protective housing of an electronic device. The electronic device includes: a second battery and a power transceiver. The power transceiver is coupled to the second battery; the power transceiver is configured to, in response to a first control command, utilize electrical energy provided by the second battery to generate a first magnetic field, causing the protective housing of the electronic device to generate a first current in response to the first magnetic field.

[0039] If the electronic device's protective case does not include a sensor, the electronic device may not include a detector. The first control command may be a command generated by the electronic device in response to a user activating the reverse wireless charging function. If the electronic device's protective case includes a sensor and the electronic device includes a detector, the first control command may be a command generated by the electronic device in response to a first detection command issued by the electronic device's protective case.

[0040] In response to the first control command, the electronic device activates its wireless reverse charging function, and the energy transceiver uses the electrical energy provided by the second battery to generate a first magnetic field. Thus, the energy processor within the electronic device's protective casing can generate a first current to charge the electronic components based on the first magnetic field emitted by the electronic device.

[0041] In this embodiment, in response to the first control command, the electronic device activates its wireless reverse charging function, and the energy transceiver uses the electrical energy provided by the second battery to generate a first magnetic field. Thus, the energy processor in the electronic device's protective case can generate a first current to charge the electronic components based on the first magnetic field emitted by the electronic device. By directly coupling the two connection points on the electronic device's protective case to the two electrode contacts on the electronic components, the phenomenon of insufficient power supply to the electrode contacts on the electronic components can be avoided, improving the charging stability of the electronic components.

[0042] In some feasible embodiments of the third aspect, the energy transceiver includes: a transceiver chip and a first coil. The transceiver chip is coupled to a second battery; the transceiver chip is configured to output a second current using electrical energy provided by the second battery in response to a first control command. The first coil is coupled to the transceiver chip; the first coil is configured to receive the second current output by the transceiver chip to form a first magnetic field.

[0043] The transceiver chip has a receiving state and a transmitting state. When the transceiver chip is in the transmitting state, it transmits the electrical energy provided by the second battery to the first coil, causing the first coil to generate a first magnetic field. When the transceiver chip is in the receiving state, it provides the current generated by the first coil to the second battery to charge it.

[0044] In this embodiment, the function of the power transceiver is switched by controlling the transmit and receive states of the transceiver chip. The transceiver chip and the first coil are relatively inexpensive, which helps reduce the cost of the power transceiver and consequently, the cost of the electronic device.

[0045] In some feasible embodiments of the third aspect, the electronic device further includes: a detector. The detector is coupled to the power transceiver; the detector is configured to provide a first control command to the power transceiver upon receiving a first detection signal.

[0046] The detector is used to detect whether the protective case of an electronic device is connected to the electronic component (i.e., whether the electronic component is in place). Exemplarily, the detector is used to receive signals emitted by a sensor. Exemplarily, the detector may receive a first detection signal provided by the sensor to confirm that the electronic component is in place; or, the detector may receive a second detection signal provided by the sensor to confirm that the electronic component is not in place.

[0047] In some examples, when the detector receives a first detection signal from the sensor, the detector sends a first control command to the power transceiver; when the detector receives a second detection signal from the sensor, the detector sends a second control command to the power transceiver.

[0048] In this embodiment, the electronic device utilizes a detector in conjunction with a sensor in its protective case. Upon detecting a first detection signal, the electronic device automatically activates its wireless reverse charging function, causing the energy transceiver to generate a first magnetic field. The energy processor in the protective case then uses this first magnetic field to generate a first current, which is supplied to the electronic components, thereby automatically charging the electronic components.

[0049] In this way, users only need to manually insert the electronic accessories into the protective case of the electronic device, and the electronic device can automatically charge the electronic accessories, reducing the user's operation steps and improving the convenience of charging electronic accessories.

[0050] In some feasible embodiments of the third aspect, the detector includes a detection coil and a detection chip. The detection coil is used to receive a first detection signal. The detection coil is configured to generate a third current upon receiving the first detection signal. The detection chip is coupled to the detection coil. The detection chip is configured to provide a first control command to an energy transceiver upon receiving the third current provided by the detection coil.

[0051] The detection coil can have inductive impedance, thus enabling the detection of signals within a specific frequency range (e.g., 30kHz-32kHz).

[0052] When the detection coil detects a signal within a specific frequency range, a third current can be sent to the in-situ detection chip. Upon receiving the third current from the detection coil, the in-situ detection chip issues a first control command to the power transceiver. The first control command instructs the power transceiver to generate a first magnetic field.

[0053] If the detection coil does not detect a signal within a specific frequency range, a third current may not be sent to the in-situ detection chip. If the in-situ detection chip does not receive the third current from the detection coil, it sends a second control command to the power transceiver. This second control command instructs the power transceiver not to generate the first magnetic field.

[0054] In this embodiment, the detector function can be achieved using a detection coil and a detection chip. The detection coil and detection chip are inexpensive, which helps reduce the cost of the detector and consequently, the cost of the electronic device.

[0055] In some feasible embodiments of the third aspect, the electronic device includes a Near Field Communication (NFC) device, which is reused as a detector. In this way, when the electronic device has an NFC device, the hardware cost of a separate detector can be eliminated, as the NFC device performs the detector function without affecting the functionality of NFC itself. Therefore, in this embodiment, reusing the NFC device as a detector reduces the cost of the electronic device.

[0056] In some feasible embodiments of the third aspect, both the electronic device and the electronic accessory are located on the wireless charging dock. The electronic device further includes a communication module and a control module. The communication module is coupled to the electronic accessory. The communication module is configured to acquire the charge level of a first battery in the electronic accessory. The control module is coupled to the communication module; the control module is configured to output a cut-off command to the communication module if the charge level of the first battery is greater than or equal to a preset charge threshold. The communication module is also configured to send a cut-off command to the electronic accessory; the cut-off command instructs the electronic accessory to reject the power supplied by the wireless charging dock.

[0057] In this embodiment, both the electronic component and the electronic device include a communication module, and they establish a communication connection using their respective communication modules. For example, both the electronic component and the electronic device include a Bluetooth communication module, and a Bluetooth connection is established between them. Thus, the electronic device can obtain the power level of the first battery in the electronic component.

[0058] In addition, electronic components also include switches. When the switch is in the ON state, the electronic component can be charged; when the switch is in the OFF state, the electronic component cannot be charged. The state of the switch can be controlled by a cut-off command or an ON command sent by the electronic device. For example, when the electronic device sends a cut-off command, the switch is in the OFF state; when the electronic device sends an ON command, the switch is in the OFF state.

[0059] In this embodiment, the electronic device controls the electronic component to charge when it determines that the first battery of the electronic component has a low charge level. Once the first battery of the electronic component has a high charge level or is fully charged, the electronic device then controls the electronic component to stop charging. This ensures the safety of charging the electronic component.

[0060] In some feasible embodiments of the third aspect, both the electronic device and the electronic accessory are located on the wireless charging dock. The electronic device further includes a communication module for coupling with the electronic accessory; the communication module is configured to send a disconnection command to the electronic accessory when a communication connection is established between the electronic device and the electronic accessory. The disconnection command is used to instruct the electronic accessory not to establish a communication connection with the wireless charging dock.

[0061] When both electronic devices and accessories are located on a wireless charging dock, it's possible that both the accessories and the device are communicating with the dock simultaneously. In this case, the wireless charging dock can receive charging requests from both the electronic device and the accessory at the same time.

[0062] When the charging needs of electronic devices differ from those of electronic accessories, the wireless charging dock may not know which charging power to output, potentially leading to inaccurate output power and posing a risk of damaging electronic accessories or reducing the charging speed of electronic devices.

[0063] In this embodiment, when the electronic device and electronic accessory establish a communication connection, the electronic device uses its communication module to send a disconnect command to the electronic accessory, causing the electronic accessory to disconnect from the wireless charging dock. In this way, the wireless charging dock establishes a communication connection with the electronic device, and the wireless charging dock responds to the charging needs of the electronic device by outputting power. This avoids the problem of inaccurate power output from the wireless charging dock, improving the safety of charging the electronic accessory or increasing the charging speed of the electronic device.

[0064] In some feasible implementations of the third aspect, the energy transceiver is also configured to generate a fourth current in response to an external magnetic field to charge the second battery.

[0065] The energy transceiver can generate a fourth current in response to the second magnetic field formed by the wireless charging base to charge the second battery, thereby charging the electronic device. In this way, the electronic device, in addition to its function of charging electronic accessories, can also charge a second battery, enhancing the versatility of its charging capabilities.

[0066] Fourthly, a charging method is provided. This method is applied to an electronic device as described in any of the third aspects. The method includes: in response to a first control command, an energy transceiver uses electrical energy provided by a second battery to generate a first magnetic field, causing a protective casing of the electronic device to generate a first current in response to the first magnetic field.

[0067] In this embodiment, in response to the first control command, the electronic device activates its wireless reverse charging function, and the energy transceiver uses the electrical energy provided by the second battery to generate a first magnetic field. Thus, the energy processor in the electronic device's protective case can generate a first current to charge the electronic components based on the first magnetic field emitted by the electronic device. By directly coupling the two connection points on the electronic device's protective case to the two electrode contacts on the electronic components, the phenomenon of insufficient power supply to the electrode contacts on the electronic components can be avoided, improving the charging stability of the electronic components.

[0068] In some feasible embodiments of the fourth aspect, the method further includes: the electronic device further includes a detector. Upon receiving a first detection signal, the detector outputs a first control command to the power transceiver.

[0069] In this embodiment, the electronic device utilizes a detector in conjunction with a sensor in its protective case. Upon detecting a first detection signal, the electronic device automatically activates its wireless reverse charging function, causing the energy transceiver to generate a first magnetic field. The energy processor in the protective case then uses this first magnetic field to generate a first current, which is supplied to the electronic components, thereby automatically charging the electronic components.

[0070] In this way, users only need to manually insert the electronic accessories into the protective case of the electronic device, and the electronic device can automatically charge the electronic accessories, reducing the user's operation steps and improving the convenience of charging electronic accessories.

[0071] In some feasible embodiments of the fourth aspect, the method further includes: the electronic device simultaneously establishing a communication connection with the electronic accessory and the wireless charging dock. The method also includes: the electronic device acquiring the charge level of a first battery in the electronic accessory. If the charge level of the first battery is less than a preset charge threshold, the electronic device sends a first power control command to the wireless charging dock; the first power control command is used to indicate that the output power of the wireless charging dock is a first power, which is less than a preset safe power.

[0072] When the electronic device determines that the first battery has a low charge level, it controls the wireless charging dock to charge both the electronic device and its accessories simultaneously at a lower power. This ensures the safety of the wireless charging dock when charging the accessories.

[0073] In some feasible embodiments of the fourth aspect, the method further includes: when the charge level of the first battery is greater than or equal to a preset charge threshold, the electronic device sends a cut-off command to the electronic accessory. The cut-off command is used to instruct the electronic accessory to reject the power provided by the wireless charging dock. The electronic device sends a second power control command to the wireless charging dock. The second power control command is used to instruct the output power of the wireless charging dock to be a second power, which is greater than the first power.

[0074] Once the first battery has a high or full charge, the electronic device stops charging its electronic components. Then, the charging dock charges the electronic device at a higher power. This improves the charging efficiency and thus increases the charging speed of the electronic device.

[0075] In some feasible embodiments of the fourth aspect, both the electronic device and the electronic accessory are located on a wireless charging dock. The method further includes: the electronic device acquiring a communication status with the electronic accessory. If the communication status indicates that the electronic device and the electronic accessory have not established a communication connection, the electronic device does not establish a communication connection with the wireless charging dock. Alternatively, if the communication status indicates that the electronic device and the electronic accessory have established a communication connection, the electronic device sends a disconnection command to the electronic accessory, and the electronic device establishes a communication connection with the wireless charging dock; the disconnection command is used to instruct the electronic accessory not to establish a communication connection with the wireless charging dock.

[0076] If the communication status indicates that the electronic device and its accessory have not established a communication connection, it may be due to insufficient battery power in the accessory. In this case, charging the accessory with a wireless charging pad will allow the accessory to establish a communication connection with the wireless charging pad. The wireless charging pad will then charge the accessory in response to its charging needs.

[0077] At this time, the electronic device does not establish a communication connection with the wireless charging dock. This avoids the problem of inaccurate output power of the wireless charging dock caused by the simultaneous communication of electronic devices and accessories with the wireless charging dock, thus improving the safety of charging electronic accessories.

[0078] In some feasible embodiments of the fourth aspect, after the electronic device does not establish a communication connection with the wireless charging dock, the method further includes: the electronic device establishing a communication connection with an electronic accessory. The electronic device sends a disconnection command to the electronic accessory, and the electronic device establishes a communication connection with the wireless charging dock; the disconnection command is used to instruct the electronic accessory not to establish a communication connection with the wireless charging dock.

[0079] After the stylus has been charging in the wireless charging dock for a period of time, its battery level increases to the point where it can establish a communication connection with the phone. At this point, the electronic device sends a disconnect command to the accessory via its communication module, preventing the accessory from establishing a communication connection with the wireless charging dock. This allows the wireless charging dock to establish a communication connection with the electronic device and respond to the charging needs of the device by outputting power accordingly. This avoids the problem of inaccurate power output caused by simultaneous communication between the electronic device and the accessory, thus improving the safety of accessory charging or increasing the charging speed of the electronic device.

[0080] Fifthly, an electronic component is provided. The electronic component includes: a first battery, a first electrode contact, a second electrode contact, and a switch. The first electrode contact is coupled to the first battery, and the second electrode contact is coupled to the first battery. The switch is connected in series between the first electrode contact and the first battery, or in series between the second electrode contact and the first battery. The switch is configured to be in an open state in response to a cut-off command.

[0081] When the switch is in the ON state, the electronic components can be charged; when the switch is in the OFF state, the electronic components cannot be charged. The state of the switch can be controlled by an ON or OFF command sent by the electronic device. For example, when the electronic device sends an OFF command, the switch is in the OFF state; when the electronic device sends an OFF command, the switch is in the OFF state.

[0082] In this embodiment, when both the electronic device and the electronic accessory are located on the wireless charging base, a switch controls whether the electronic accessory is charging. This allows for flexible control of the charging status of the electronic accessory. When the wireless charging base has a high output power, the switch of the electronic accessory can be kept in the off state, improving the safety of the electronic accessory.

[0083] A sixth aspect provides a charging method. Applied to electronic accessories as described in the fifth aspect. The method includes: in response to a cut-off command, a switch is in an open state, causing a first battery to reject electrical energy supplied by a first electrode contact or a second electrode contact.

[0084] In this embodiment, when both the electronic device and the electronic accessory are located on the wireless charging base, a switch controls whether the electronic accessory is charging. This allows for flexible control of the charging status of the electronic accessory. When the wireless charging base has a high output power, the switch of the electronic accessory can be kept in the off state, improving the safety of the electronic accessory.

[0085] In some feasible embodiments of the sixth aspect, the electronic accessory simultaneously establishes communication connections with both the electronic device and the wireless charging dock. The method further includes: in response to a disconnection command provided by the electronic device, the electronic accessory disconnects its communication connection with the wireless charging dock.

[0086] In this embodiment, the electronic device uses its communication module to send a disconnect command to the electronic accessory, preventing the electronic accessory from establishing a communication connection with the wireless charging dock. In this way, the wireless charging dock establishes a communication connection with the electronic device, and the wireless charging dock responds to the charging needs of the electronic device by outputting power. This avoids the problem of inaccurate power output from the wireless charging dock, improving the safety of charging the electronic accessory or increasing the charging speed of the electronic device.

[0087] A seventh aspect provides a charging system. The charging system includes an electronic device, an electronic component, and a protective housing for the electronic device. The electronic device is the electronic device as described in any of the third aspects. The protective housing for the electronic device is the electronic device protective housing as described in any of the first aspects, and the protective housing is fitted onto the electronic device. The electronic component is the electronic component as described in the fifth aspect, with a first electrode contact of the electronic component coupled to a first connecting contact of the electronic device protective housing, and a second electrode contact of the electronic component coupled to a second connecting contact of the electronic device protective housing.

[0088] The beneficial effects of the seventh aspect can be referenced from the beneficial effects of any one of the first, third, and fifth aspects, and will not be elaborated here.

[0089] In some feasible embodiments of the seventh aspect, the charging system further includes a wireless charging dock. The wireless charging dock is used to hold electronic devices, electronic device protective cases, and electronic accessories. The wireless charging dock is configured to provide a second magnetic field.

[0090] An energy transceiver in an electronic device can generate a fourth current based on a second magnetic field to charge the device's second battery. An energy processor in an electronic component can generate a first current based on a second magnetic field to charge the component's first battery.

[0091] Eighthly, a charging method is provided. This method is applied to a charging system as described in any of the seventh aspects. The method includes: an electronic device generating a first magnetic field using electrical energy provided by a second battery; a protective casing of the electronic device generating a first current in response to the first magnetic field and providing the first current to electronic components to charge the electronic components.

[0092] In this embodiment, the electronic device activates its reverse wireless charging function, and the energy transceiver uses the electrical energy provided by the second battery to generate a first magnetic field. Thus, the energy processor in the electronic device's protective case can generate a first current to charge the electronic components based on the first magnetic field emitted by the electronic device. By directly coupling two connection points on the electronic device's protective case to two electrode contacts on the electronic components, the phenomenon of insufficient power supply to the electrode contacts on the electronic components can be avoided, improving the charging stability of the electronic components.

[0093] In some feasible embodiments of the eighth aspect, the charging system further includes a wireless charging dock configured to provide a second magnetic field. After the electronic device generates a first magnetic field using electrical energy provided by the second battery, the method further includes: the electronic device detecting proximity to the wireless charging dock, and the electronic device ceasing to generate the first magnetic field. A protective case for the electronic device generates a first current in response to the second magnetic field and provides the first current to electronic accessories to charge the first battery. And / or, the electronic device generates a fourth current in response to the second magnetic field to charge the second battery.

[0094] In scenarios where the charging system includes electronic devices, electronic accessories, and protective cases for electronic devices, the addition of a wireless charging dock causes a scenario change. In this embodiment, when a wireless charging dock is added, by disabling the reverse wireless charging function of the electronic devices, the wireless charging dock can continue to charge the electronic devices and accessories. This ensures that the charging stability of the electronic accessories can still be guaranteed even when the scenario changes.

[0095] After adding a wireless charging dock, when the electronic device determines that the first battery's power is low, it controls the wireless charging dock to charge both the electronic device and its accessories simultaneously at a lower power. This ensures the safety of the wireless charging dock when charging electronic accessories.

[0096] After the battery level increases during a period of charging, the electronic device stops charging the accessory. Then, the charging dock charges the device at a higher power. This improves the charging efficiency and thus increases the charging speed of the electronic device.

[0097] In some feasible embodiments of the eighth aspect, the charging system further includes a wireless charging dock. The method further includes: the wireless charging dock forming a second magnetic field corresponding to a second power. The electronic device generates a fourth current in response to the second magnetic field corresponding to the second power to charge the second battery. When the electronic device detects the presence of an electronic accessory, the wireless charging dock forms a second magnetic field corresponding to a first power. The first power is less than the second power. The electronic device generates a fourth current in response to the second magnetic field corresponding to the first power to charge the second battery. And / or, the electronic device's protective case generates a first current in response to the second magnetic field corresponding to the first power and provides the first current to the electronic accessory to charge the first battery.

[0098] In scenarios where the charging system includes electronic devices, protective cases for electronic devices, and wireless charging docks, the addition of electronic accessories triggers a scenario change. In this embodiment, when an electronic accessory is added, the electronic device can control the wireless charging dock to interrupt high-power charging of the electronic device. Then, the electronic device or the electronic accessory can control the operating power of the wireless charging dock, ensuring that the wireless charging dock can safely charge both the electronic accessory and the electronic device. This ensures the safety of the wireless charging dock charging electronic accessories during scenario transitions.

[0099] A ninth aspect provides a hardware device. The hardware device includes a memory and one or more processors. The memory is coupled to the processors. Computer program code, including computer instructions, is stored in the memory. When the computer instructions are executed by the processor, the hardware device performs a method as described in any one of the second, fourth, sixth, and eighth aspects.

[0100] A tenth aspect provides a computer-readable storage medium. The computer-readable storage medium includes computer instructions that, when executed on a hardware device, cause the hardware device to perform the methods of any one of the second, fourth, sixth, and eighth aspects.

[0101] Eleventhly, a computer program product is provided. When the computer program product is run on a hardware device, it causes the hardware device to perform the method of any one of the second, fourth, and sixth aspects.

[0102] The beneficial effects of aspects nine through eleven can be referenced to the beneficial effects of the charging methods in any of aspects two, four, six, and eight, and will not be elaborated here. Attached Figure Description

[0103] Figure 1 A diagram illustrating how a mobile phone can charge a stylus in some solutions;

[0104] Figure 2 This is a schematic diagram of the structure of a stylus provided in some embodiments of this application;

[0105] Figure 3 This is a schematic diagram of the structure of a mobile phone protective case provided in some embodiments of this application;

[0106] Figure 4 This is an exploded perspective view of a mobile phone provided in some embodiments of this application;

[0107] Figure 5 This is a schematic diagram of the internal structure of a mobile phone;

[0108] Figure 6 This is a schematic diagram illustrating a scenario in which a mobile phone case charges a stylus in some embodiments of this application.

[0109] Figure 7 for Figure 6 A structural diagram of a mobile phone, a phone case, and a stylus;

[0110] Figure 8 This is a schematic diagram illustrating another scenario in which a mobile phone case charges a stylus, as shown in some embodiments of this application.

[0111] Figure 9 for Figure 8 A structural diagram of a mobile phone, a phone case, and a stylus;

[0112] Figure 10 for Figure 8 Equivalent circuit diagram of a mobile phone, mobile phone case and stylus;

[0113] Figure 11 This is a schematic diagram illustrating another scenario in which a mobile phone case charges a stylus, as shown in some embodiments of this application.

[0114] Figure 12 for Figure 11 A structural diagram of a mobile phone, a phone case, and a wireless charging dock;

[0115] Figure 13 for Figure 11 Equivalent circuit diagram of a mobile phone, a mobile phone case, and a wireless charging dock;

[0116] Figure 14 This is a schematic diagram illustrating another scenario in which a mobile phone case charges a stylus, as shown in some embodiments of this application.

[0117] Figure 15 for Figure 14 A structural diagram of a mobile phone, a phone case, a stylus, and a wireless charging dock;

[0118] Figure 16A flowchart illustrating how a wireless charging dock charges a stylus and a mobile phone.

[0119] Figure 17 Another flowchart for charging a stylus and phone with a wireless charging dock;

[0120] Figure 18 From Figure 8 The scene shown is transformed into Figure 14 A schematic diagram of the scene shown;

[0121] Figure 19 for Figure 18 Flowcharts corresponding to scene transitions in the middle;

[0122] Figure 20 for Figure 18 Equivalent circuit diagram for scene transitions;

[0123] Figure 21 From Figure 11 The scene shown is transformed into Figure 14 A schematic diagram of the scene shown;

[0124] Figure 22 for Figure 21 Flowcharts corresponding to scene transitions in the middle;

[0125] Figure 23 This is a schematic diagram of the hardware device provided in some embodiments of this application. Detailed Implementation

[0126] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application are within the scope of protection of this application.

[0127] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0128] Furthermore, in this application, directional terms such as "upper," "lower," "left," and "right" may be defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and may change accordingly depending on the orientation of the components in the accompanying drawings.

[0129] In describing some embodiments, the terms "connected," "linked," and their derivative expressions may be used. For example, the term "connected" may be used to indicate that two or more components are in direct or indirect physical contact with each other. For example, "A and B are connected" can mean that A and B are connected directly, or it can mean that A and B are connected through other components. Furthermore, the term "coupled" can refer to an electrical connection that enables signal transmission; coupling can indicate direct coupling or indirect coupling.

[0130] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0131] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0132] As used herein, “about,” “approximately,” or “approximately” includes the value stated and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0133] For ease of understanding, the technical terms used in this application will be explained and described below.

[0134] Wireless charging technology belongs to wireless power transmission. Wireless power transmission, also known as wireless power transfer or contactless power transfer, refers to a transmission method that uses a transmitter to convert electrical energy into other forms of relay energy (such as electromagnetic field energy, laser, microwave, and mechanical waves), transmits it over a distance, and then uses a receiver to convert the relay energy back into electrical energy, thus realizing wireless power transmission.

[0135] Based on the different forms of relay energy during energy transmission, wireless power transmission can be divided into: magnetic (field) coupling, electric (field) coupling, electromagnetic radiation (such as solar radiation), and mechanical wave coupling (ultrasound), etc. The wireless power transmission method in the embodiments of this application can employ magnetic coupling.

[0136] The magnetic coupling power transmission process mainly includes: at the transmitting end, a high-frequency power supply is applied to the transmitting coil, so that the transmitting coil generates a high-frequency magnetic field under the excitation of the power supply; at the receiving end, the receiving coil couples and generates current under the action of this high-frequency magnetic field, thereby realizing wireless power transmission.

[0137] Taking charging a mobile phone with wireless positive charging capability using a wireless charging dock as an example: The mobile phone is placed on the wireless charging dock. The wireless charging dock may include a transmitting coil and a power supply module coupled to each other. The power supply module provides electrical energy to the transmitting coil, enabling the transmitting coil to transmit energy outward. The power supply module can be a power plug or a battery. Taking a power plug as an example, after the power plug is inserted into the socket, the power connector receives AC power. The AC power received by the power plug is transmitted to the transmitting coil, causing the transmitting coil to generate a high-frequency magnetic field under the excitation of the AC power. The mobile phone may include a receiving coil and a battery. The receiving coil in the mobile phone can be at least partially aligned with the transmitting coil of the wireless charging dock. The receiving coil couples to generate current under the action of the high-frequency magnetic field. The battery is coupled to the receiving coil, and the current generated by the receiving coil flows into the battery, thereby charging the battery in the mobile phone.

[0138] A protective case is an accessory for electronic devices. It is a device used to cover at least part of the surface of an electronic device to protect it. Protective cases can be molded from materials such as metal, plastic, or silicone. Since the protective case is exposed outside the electronic device, it can also serve a decorative function.

[0139] In addition, as an accessory to electronic devices, protective cases can also provide additional functions that electronic devices do not have. For example, a protective case may include a protective case body and a bracket mounted on a cover within the protective case body. The protective case body is connected to the electronic device, and the bracket can support the protective case body and the connected electronic device.

[0140] Stylus: It is a product that replaces the finger. The principle is to use the human body as a conductor ground wire to form a touch current on the screen, so that the stylus and the screen make contact, which is essentially the same as the contact between the finger and the screen.

[0141] The stylus includes two electrode contacts and a battery. The two electrode contacts may include a first electrode contact and a second electrode contact. Exemplarily, the first electrode contact is coupled to the positive terminal of the battery, and the second electrode contact is coupled to the negative terminal of the battery.

[0142] Figure 1 The diagram illustrates several solutions for charging styluses in electronic devices. Currently, the common method for charging styluses involves attaching the stylus to the electronic device, which then directly supplies power to the first and second electrode contacts to charge the stylus's battery. However, due to the high cost of electronic devices, users typically use protective cases to protect them in real-world scenarios. For example... Figure 1As shown, an electronic device with a protective case may block the connection between the stylus and the electronic device, which may cause the electronic device to fail to supply power to the electrode contacts on the stylus, resulting in unstable charging of the stylus.

[0143] Based on this, embodiments of this application provide an electronic device protective case, an electronic device, electronic accessories, and a charging method. The electronic device protective case includes an energy processor and two connecting contacts. The two connecting contacts are respectively coupled to a first electrode contact and a second electrode contact on a stylus. The energy processor is used to generate a current in an external magnetic field. The coupling of the energy processor and the two connecting contacts allows the current to flow through the connecting contacts to the electrode contacts when the energy processor generates a current, thereby charging the battery in the stylus. In this way, by directly coupling the two connecting contacts on the electronic device protective case to the two electrode contacts on the stylus, the problem of insufficient power supply to the electrode contacts on the stylus can be avoided, improving the stability of stylus charging.

[0144] The electronic accessories provided in the embodiments of this application can be electronic accessories equipped with rechargeable batteries. Electronic accessories may include, but are not limited to, styluses, earphones, smart glasses, smart rings, smart bracelets, etc., and the embodiments of this application do not limit this. The following description uses a stylus as an example, but it is not limited to styluses.

[0145] Figure 2 The diagram shows a schematic representation of the stylus provided in some embodiments of this application. It should be noted that... Figure 2 Only a portion of the stylus structure may be shown. In some other embodiments, the stylus may include more hardware, which is not limited in the embodiments of this application.

[0146] The stylus 300 may include a pen casing 310 and a stylus battery. Figure 2 (Not shown in the diagram, but representing a first battery) and two electrode contacts. The stylus battery is located inside the pen housing 310, and the two electrode contacts are spaced apart, with the pen housing 310 exposing both electrode contacts. The two electrode contacts may include a first electrode contact 320 and a second electrode contact 330. The first electrode contact 320 can be coupled to the positive terminal of the stylus battery, and the second electrode contact 330 can be coupled to the negative terminal of the stylus battery.

[0147] The stylus battery can be a lithium battery or other suitable battery, which is not limited here. The battery capacity of the stylus battery can be 30mAh, 40mAh, 50mAh or other suitable capacity, which is not limited here.

[0148] In some examples, the two electrode contacts in the stylus 300 can be a block structure. The user can supply power to the two electrode contacts to charge the stylus battery by aligning them with the two contacts of a charging device.

[0149] In other examples, to increase the exposed area of ​​the electrode contacts and reduce the difficulty of connecting the two electrode contacts to the two contacts of the charging device, such as... Figure 2 As shown, the electrode contacts can be configured as a ring structure. This results in a larger outer surface area of ​​the electrode contacts, reducing the difficulty of connecting the ring-shaped electrode contacts to the contacts of the charging device, thereby improving the convenience of charging the stylus battery.

[0150] The electronic device protective cases provided in the embodiments of this application can be protective cases for electronic devices such as mobile phone cases and tablet cases, and the embodiments of this application are not limited to this. The following description uses mobile phone cases as an example, but it is not limited to mobile phone cases.

[0151] Figure 3 The diagram shows structural schematics of mobile phone protective cases provided in some embodiments of this application. It should be noted that... Figure 3 Only a portion of the phone case's structure may be shown. In other embodiments, the phone case may include more hardware, and the embodiments of this application do not limit this.

[0152] The mobile phone case 200 may include a case body 210, an energy processor 220, a sensor 230, a first contact point 240, and a second contact point 250. The energy processor 220 and the sensor 230 may be located inside the case body 210, while the first contact point 240 and the second contact point 250 may be exposed on the outside of the case body 210. Understandably, devices outside the mobile phone case 200 can contact the first contact point 240 and the second contact point 250 through the case body 210. For example, the outer surface of the case body 210 may have a first opening and a second opening. The first contact point 240 and the second contact point 250 may be exposed to the outside through the first opening. Thus, the first contact point 240 and the second contact point 250 exposed to the outside can contact devices outside the mobile phone case 200.

[0153] The housing body 210 can be made of at least one material such as rubber, silicone, plastic, or metal. The housing body 210 may include a cover 211, a frame 212, and a connecting platform 213. The frame 212 can be attached to the edge of the cover 211, and the frame 212 and cover 211 can be used to connect to a mobile phone. The connecting platform 213 can be located on the outer surface of the frame 212, and the connecting platform 213 can be used to connect to a stylus.

[0154] In some examples, the energy processor 220 and the sensor 230 may be located inside the housing 211, and the connecting platform 213 may expose the first connecting contact point 240 and the second connecting contact point 250. For example, the outer surface of the connecting platform 213 may have a first opening and a second opening, through which the first connecting contact point 240 may extend out of the connecting platform 213 and the second connecting contact point 250 may extend out of the connecting platform 213 through the second opening.

[0155] For example, a phone case 200 is fitted onto a phone, with the phone in contact with the case cover 211 and the case frame 212, thereby defining the relative position between the phone and the phone case 200. A stylus 300 is inserted into a connector 213, and the stylus 300 contacts the connector 213, thereby defining the relative position between the stylus 300 and the phone case 200. Specifically, when the stylus 300 is inserted into the connector 213, the first electrode contact 320 of the stylus 300 contacts and connects with the first connecting contact 240 of the phone case 200, and the second electrode contact 330 of the stylus 300 contacts and connects with the second connecting contact 250 of the phone case 200.

[0156] In other examples, the first contact point 240 and the second contact point 250 may also be located on the cover 211, which exposes the first contact point 240 and the second contact point 250. In this case, the stylus 300 can be mounted on the cover 211 such that the first electrode contact 320 of the stylus 300 contacts the first contact point 240, and the second electrode contact 330 of the stylus 300 contacts the second contact point 250. Alternatively, the first contact point 240 and the second contact point 250 may also be located on the frame 212, which exposes the first contact point 240 and the second contact point 250. In this case, the stylus 300 can be mounted on the frame 212 such that the first electrode contact 320 of the stylus 300 contacts the first contact point 240, and the second electrode contact 330 of the stylus 300 contacts the second contact point 250.

[0157] In this embodiment, the cover 211 is in close contact with the mobile phone 100, and the energy processor 220 is disposed inside the cover 211, so that the energy processor 220 and the energy transceiver in the mobile phone 100 are close to each other, thereby improving the wireless power transmission efficiency between the mobile phone 100 and the mobile phone protective case 200. In addition, the stylus 300 is connected to the connector 213, so that the stylus 300 is located on the outside of the frame 212, and the energy transmission path between the stylus 300, the energy processor 220 and the energy transceiver are staggered. In this way, the stylus 300 will not affect the wireless power transmission between the mobile phone 100 and the mobile phone protective case 200, improving the reliability of wireless transmission between the mobile phone 100 and the mobile phone protective case 200.

[0158] like Figure 3 As shown, the first contact point 240 can be coupled to the sensor 230 via a wire, and the second contact point 250 can also be coupled to the sensor 230 via a wire. Therefore, the sensor 230 can detect whether the first contact point 240 is coupled to the first electrode contact 320 and whether the second contact point 250 is coupled to the second electrode contact 330 through the first contact point 240 and the second contact point 250, thereby determining whether the stylus 300 is inserted into the connector 213.

[0159] For example, if sensor 230 detects that the first connecting contact 240 is not coupled to the first electrode contact 320, and / or the second connecting contact 250 is not coupled to the second electrode contact 330, sensor 230 determines that the stylus 300 is not inserted into the connector 213 and is not in the charging position (hereinafter referred to as stylus 300 not in place). If sensor 230 detects that the first connecting contact 240 is coupled to the first electrode contact 320 and the second connecting contact 250 is coupled to the second electrode contact 330, sensor 230 determines that the stylus 300 is inserted into the connector 213 and is in the charging position (hereinafter referred to as stylus 300 in place).

[0160] When sensor 230 determines that the stylus 300 is in place, it may emit a first detection signal to indicate that the stylus 300 is in place. When sensor 230 determines that the stylus 300 is not in place, it may emit a second detection signal to indicate that the stylus 300 is not in place. Alternatively, in some examples, sensor 230 may not emit a signal when it determines that the stylus 300 is not in place.

[0161] The energy processor 220 can convert external wireless energy into electrical energy. For example, the energy processor 220 can generate a first current based on an external magnetic field.

[0162] like Figure 3 As shown, the first contact point 240 can be coupled to the energy processor 220 via a wire, and the second contact point 250 can also be coupled to the energy processor 220 via a wire. In this way, the electrical energy generated by the energy processor 220 can be transmitted to the first contact point 240 and the second contact point 250.

[0163] Therefore, when the stylus 300 is inserted into the connector 213, such that the first contact point 240 is coupled to the first electrode contact point 320 and the second contact point 250 is coupled to the first electrode contact point 330, the electrical energy generated by the energy processor 220 can be transferred to the stylus battery, thereby charging the stylus battery.

[0164] The electronic devices provided in the embodiments of this application may be electronic devices with wireless positive charging and / or wireless reverse charging functions. Wireless positive charging means that an external power source can wirelessly charge the battery inside the electronic device. Wireless reverse charging means that the battery inside the electronic device can output electrical energy to wirelessly charge other external electronic components.

[0165] Electronic devices may include, but are not limited to, mobile phones, tablets, laptops, handheld computers, netbooks, personal digital assistants (PDAs), wearable electronic devices (smartwatches, smart bracelets, smart rings, etc.), virtual reality devices, etc., and the embodiments of this application are not limited thereto. The following description uses a mobile phone as an example, but it is not limited to mobile phones.

[0166] Figure 4 This application shows an exploded perspective view of a mobile phone according to some embodiments. Figure 5 A schematic diagram of the internal structure of a mobile phone is shown. It should be noted that... Figure 4 and Figure 5 Only a portion of the phone's structure may be shown. In other embodiments, the phone may include more hardware, which is not limited in the embodiments of this application.

[0167] like Figure 4 and Figure 5 As shown, the mobile phone 100 may include a screen 110, a back cover 120, a mid-frame 130, a mobile phone battery (second battery) 140, a power transceiver (TX / RX) 150, and a detector 160. The screen 110 and the back cover 120 may be respectively disposed on both sides of the mid-frame 130 and connected to the mid-frame 130, together forming a storage space. The mobile phone battery 140, the power transceiver 150, and the detector 160 may be located within the storage space.

[0168] like Figure 4 As shown, screen 110 can be used to display images, videos, etc. Screen 110 may include a light-transmitting cover 111 and a display screen 112. The light-transmitting cover 111 and the display screen 112 are stacked together. The light-transmitting cover 111 is mainly used to protect the display screen 112 and prevent dust. The material of the light-transmitting cover 111 includes, but is not limited to, glass. The display screen 112 may be a flexible display screen or a rigid display screen.

[0169] The back cover 120 can be used to protect the internal electronic components of the electronic device 100. The back cover 120 can be located on the side of the display screen 112 away from the light-transmitting cover 111.

[0170] The middle frame 130 may include a connected frame 131 and a middle plate 132. The frame 131 may be located between the rear cover 120 and the light-transmitting cover 111, and the frame 131 may be fixedly connected to the rear cover 120. For example, the frame 131 may be fixedly connected to the rear cover 120 by adhesive. The light-transmitting cover 111 may be fixedly fixed to the frame 131 by adhesive. The middle plate 132 is connected to the inner surface of the frame 131 to achieve the installation and fixation of the middle plate 132. For example, the middle plate 132 and the frame 131 may be made of metal, and the middle plate 132 may be fixed to the frame 131 by welding. The middle plate 132 may also be integrally formed with the frame 131. The middle plate 132 serves as the structural "skeleton" of the electronic device 100.

[0171] The mobile phone battery 140 can be a lithium battery or other suitable battery, which is not limited here. The battery capacity of the mobile phone battery 140 can be 4000mAh, 4500mAh, 5000mAh or other suitable capacity, which is not limited here.

[0172] like Figure 5 As shown, the power transceiver 150 can be located on the middle plate 132. The power transceiver 150 can be coupled to the mobile phone battery 140. The power transceiver 150 can be used to receive energy or to transmit energy.

[0173] When the power transceiver 150 receives energy, it can convert external wireless energy into electrical energy. For example, the power transceiver 150 can generate a fourth current based on an external magnetic field.

[0174] When the power transceiver 150 transmits energy, it can convert the electrical energy provided by the mobile phone battery 140 into wireless energy for external transmission. For example, the power transceiver 150 can generate a second magnetic field based on a second current provided by the mobile phone battery 140.

[0175] Detector 160 may be located on the middle plate 132. Detector 160 may be used to receive signals from sensor 230 in the phone case 200 to determine whether stylus 300 is in place.

[0176] For example, when detector 160 receives a first detection signal from sensor 230, detector 160 can determine that stylus 300 is in place and issue a first control command. The first control command is used to instruct the power transceiver to form a first magnetic field. When detector 160 receives a second detection signal from sensor 230, or when detector 160 does not receive a signal from sensor 230, detector 160 can determine that stylus 300 is not in place and issue a second control command or not issue a control command. The second control command is used to instruct the power transceiver not to form the first magnetic field. For ease of understanding, the following description uses detector 160 issuing a second control command as an example, but it is not limited to relying solely on the second control command to instruct the power transceiver not to form the first magnetic field.

[0177] like Figure 5 As shown, detector 160 can be coupled to power transceiver 150. Thus, a first control command or a second control command issued by detector 160 can be provided to power transceiver 150. In this way, power transceiver 150 can also determine whether stylus 300 is in place based on the first control command issued by detector 160.

[0178] In some examples, the power transceiver 150 receives a first control command from the detector 160, confirming that the stylus 300 is in place. At this time, the power transceiver 150 can convert electrical energy provided by the mobile phone battery 140 into wireless energy and transmit it externally.

[0179] The following section, using the aforementioned mobile phone 100, mobile phone case 200, and stylus 300, explains the principle and process of how the mobile phone case 200 charges the stylus 300 in different application scenarios.

[0180] Figure 6 This illustration shows a scenario in which a mobile phone case charges a stylus in some embodiments of this application; Figure 7 It shows Figure 6 A structural diagram of a mobile phone, a phone case, and a stylus. Among them, Figure 6 In the embodiments shown, the mobile phone 100 may not include the detector 160, and the mobile phone case 200 may not include the sensor 230. Figure 6 In the illustrated embodiment, the mobile phone 100, the mobile phone case 200, and the stylus 300 together constitute the charging system.

[0181] like Figure 6As shown, the mobile phone 100 is covered by a mobile phone case 200. The user inserts the stylus 300 into the mobile phone case 200, so that the first electrode contact 320 of the stylus 300 is in contact with the first connecting contact 240 of the mobile phone case 200, and the second electrode contact 330 of the stylus 300 is in contact with the second connecting contact 250 of the mobile phone case 200.

[0182] Afterwards, the user operates the phone (e.g., ... Figure 6 (As shown in the phone's settings interface), control the phone to enable the wireless reverse charging function, so that the energy transceiver 150 forms a first magnetic field. The energy processor 220 in the phone case 200 uses the first magnetic field to form a first current, and then provides the first current to the stylus 300, thereby charging the stylus 300.

[0183] The following is combined Figure 7 This section provides a detailed explanation of the hardware structure of the phone 100, phone case 200, and stylus 300, as well as the charging process of the phone case 200 and stylus 300.

[0184] The mobile phone 100 may include a mobile phone battery 140, an energy transceiver 150, and a control chip 170.

[0185] The control chip 170 can be a system-on-a-chip (SoC) chip, a microcontroller unit (MCU) chip, or other suitable processing chip with control functions; no limitation is made here. In this embodiment, the control chip 170 refers to the chip that provides control instructions to specific hardware within the mobile phone 100 in response to user operations on the mobile phone 100.

[0186] For example, a user can open the system settings on mobile phone 100 and operate the interface displayed in the system settings to enable the wireless reverse charging function of mobile phone 100. In response to the user's operation, the control chip 170 outputs a first control command to the energy transceiver 150.

[0187] In some examples, such as Figure 7 As shown, the power transceiver 150 may include a transceiver chip 151 and a first coil 152. The transceiver chip 151 may be coupled to both the mobile phone battery 140 and the first coil 152. The first coil 152 may include a soft magnetic material, such as an iron-silicon alloy, magnetic ferrite, etc., which are not limited here.

[0188] The transceiver chip 151 can select whether the mobile phone 100 should enable the wireless reverse charging function based on the control command sent by the control chip 170.

[0189] When the transceiver chip 151 receives the first control command provided by the control chip 170, the transceiver chip 151 can transmit the second current output by the mobile phone battery 140 to the first coil 152, so that the first coil 152 uses the second current output by the mobile phone battery 140 to form a first magnetic field. Understandably, when the transceiver chip 151 receives the first control command provided by the control chip 170, the mobile phone activates its reverse wireless charging function.

[0190] When the transceiver chip 151 receives the second control command provided by the control chip 170, the transceiver chip 151 does not provide the second current to the first coil 152, and therefore the first coil 152 does not form the first magnetic field. Understandably, when the transceiver chip 151 receives the second control command provided by the control chip 170, the mobile phone disables its reverse wireless charging function.

[0191] The mobile phone case 200 may include an energy processor 220, a first contact point 240, and a second contact point 250.

[0192] like Figure 7 As shown, the energy processor 220 may include a second coil. The second coil may be coupled to both the first contact point 240 and the second contact point 250. The second coil may generate a first current based on an external magnetic field (e.g., a first magnetic field generated by the mobile phone 100), and the first current generated by the second coil may be transmitted to the first contact point 240 and the second contact point 250 for coupling.

[0193] The second coil has a simple structure, thus reducing the cost of the energy processor 220. The second coil may not include soft magnetic materials.

[0194] In some examples, sensor 230 includes an induction coil. The number of turns of the induction coil is less than the number of turns of the second coil. Understandably, the unfolded area of ​​the second coil can be larger than the unfolded area of ​​the induction coil. In this way, because the unfolded area of ​​the second coil is larger, the efficiency of the phone case 200 in sensing the external magnetic field to form a first current can be improved, thereby improving the effect of the phone's wireless reverse charging function.

[0195] Of course, in other examples, the number of turns of the induction coil may be equal to or greater than the number of turns of the second coil, which is not limited here.

[0196] The stylus 300 may include a first electrode contact 320, a second electrode contact 330, a receive (RX) chip 340, a charger integrated circuit (Charger IC) 350, and a stylus battery 360. The receive chip 340 is coupled to the first electrode contact 320, the second electrode contact 330, and the charger chip 350, respectively. The charger chip 350 is also coupled to the stylus battery 360.

[0197] The receiving chip 340 can receive electrical energy from the first electrode contact 320 and the second electrode contact 330, and transmit the electrical energy to the charger chip 350. However, since the power supplied by the phone case 200 to the stylus 300 is generated wirelessly, and the stability of wireless transmission is affected by many factors, the stability of the power generated by the phone case 200 is relatively poor.

[0198] Therefore, after the receiving chip 340 receives the electrical energy generated by the phone case 200, the charger chip 350 processes the electrical energy provided by the phone case 200. For example, the charger chip 350 converts the electrical energy provided by the phone case 200 into voltage and current suitable for charging the stylus battery 360, and controls and protects the charging process. In other examples, the charger chip 350 may also have various protection functions, such as over-temperature protection, over-current protection, and short-circuit protection, to ensure the safety of the charging process.

[0199] Additionally, the stylus 300 may also include a capacitive pen capacitor. In some examples, such as... Figure 7 As shown, the first plate of the pen capacitor can be coupled to the first electrode contact 320, and the second plate of the pen capacitor can be coupled to the second electrode contact 330. In other examples, the pen capacitor can also be connected in series between the first electrode contact 320 and the receiving chip 340, or the pen capacitor can also be connected in series between the second electrode contact 330 and the receiving chip 340. The embodiments of this application do not limit the specific connection relationship of the pen capacitor.

[0200] The following example illustrates how a user attaches the stylus 300 to the phone case 200 and controls the phone 100 to charge the stylus 300:

[0201] When a user inserts the stylus 300 into the phone case 200, to couple the first electrode contact 320 on the stylus 300 to the first connection contact 240 on the phone case 200, the second electrode contact 330 on the stylus 300 is coupled to the second connection contact 250 on the phone case 200. It should be noted that the stylus 300 may or may not be in position at this time. However, the user will assume that the stylus 300 is in position when the user inserts it into the phone case 200.

[0202] When the user believes the stylus 300 is in place, they operate the mobile phone 100 to activate its reverse wireless charging function. In response to the user's operation on the mobile phone 100, the control chip 170 outputs a first control command to the transceiver chip 151.

[0203] When the transceiver chip 151 receives the first control command provided by the control chip 170, the transceiver chip 151 can transmit the second current output by the mobile phone battery 140 to the first coil 152, so that the first coil 152 can form a first magnetic field using the second current output by the mobile phone battery 140.

[0204] The second coil can generate a first current based on the first magnetic field formed by the first coil 152. Thus, the first current generated by the second coil can be transmitted to the first connecting contact 240 and the second connecting contact 250. With the first connecting contact 240 coupled to the first electrode contact 320 and the second connecting contact 250 coupled to the second electrode contact 330, the electrical energy generated by the second coil can be transmitted to the first electrode contact 320 and the second electrode contact 330 of the stylus 300.

[0205] The receiving chip 340 in the stylus 300 receives electrical energy from the first electrode contact 320 and the second electrode contact 330, and transmits the electrical energy to the charger chip 350. The charger chip 350 converts the electrical energy provided by the phone case 200 into a voltage and current suitable for charging the stylus battery 360, and then supplies it to the stylus battery 360, thereby charging the stylus battery 360.

[0206] In this embodiment, the electronic device protective case 200 is provided with a second coil and two connecting contacts. The two connecting contacts are respectively coupled to the first electrode contact 320 and the second electrode contact 330 on the stylus 300. The second coil is used to generate a first current in an external magnetic field. The coupling of the second coil and the two connecting contacts allows the first current to flow through the connecting contacts to the electrode contacts when the second coil generates the first current, thereby charging the stylus battery 360 in the stylus 300. In this way, the direct coupling of the two connecting contacts on the electronic device protective case 200 to the two electrode contacts on the stylus 300 avoids the phenomenon of insufficient power supply to the electrode contacts on the stylus 300, improving the charging stability of the stylus 300.

[0207] In other embodiments, the mobile phone 100 may include a Hall sensor, and the stylus 300 may include a magnet. The phone case 200 does not obstruct the Hall sensor's response to the magnet.

[0208] After the user inserts the stylus 300 into the phone case 200, the phone 100 can use a Hall sensor to determine whether the stylus 300 is in place. For example, if the Hall sensor detects a magnet, the phone 100 determines that the stylus 300 is in place and activates the wireless reverse charging function.

[0209] Therefore, the mobile phone 100 can use the phone case 200 to charge the stylus 300. The process of the mobile phone 100 charging the stylus 300 using the phone case 200 can be referred to the process of the mobile phone 100 charging the stylus 300 using the phone case 200 when the user manually turns on the wireless charging function of the mobile phone 100, and will not be repeated here.

[0210] Figure 8 This illustration shows another scenario in which a mobile phone case charges a stylus, as shown in some embodiments of this application. Figure 9 It shows Figure 8 A structural diagram of a mobile phone, a phone case, and a stylus; Figure 10 It shows Figure 8 Equivalent circuit diagram of a mobile phone, mobile phone case and stylus. Figure 8 In the illustrated embodiment, the mobile phone 100, the mobile phone case 200, and the stylus 300 together constitute the charging system.

[0211] Figure 8 The illustrated embodiments and Figure 6Compared to the illustrated embodiment, the difference lies in that: the mobile phone 100 may include a detector 160, and the mobile phone case 200 may include a sensor 230. When the mobile phone 100 detects that a stylus is present, the mobile phone 100 can automatically activate the reverse wireless charging function without requiring the user to manually activate the reverse wireless charging function.

[0212] like Figure 8 As shown, the mobile phone 100 is covered by a mobile phone protective case 200. The stylus 300 is inserted into the mobile phone protective case 200, so that the first electrode contact 320 of the stylus 300 is in contact with the first connecting contact 240 of the mobile phone protective case 200, and the second electrode contact 330 of the stylus 300 is in contact with the second connecting contact 250 of the mobile phone protective case 200.

[0213] Figure 8 In the embodiment shown, when the mobile phone 100 detects that the stylus is in place, the mobile phone 100 automatically activates the wireless reverse charging function, so that the energy transceiver 150 forms a first magnetic field. The energy processor 220 in the mobile phone case 200 uses the first magnetic field to form a first current and then provides the first current to the stylus 300, thereby charging the stylus 300.

[0214] The following is combined Figure 9 and Figure 10 This section provides a detailed explanation of the hardware structure of the phone 100, phone case 200, and stylus 300, as well as the charging process of the phone case 200 and stylus 300.

[0215] The mobile phone 100 may include a mobile phone battery 140, an energy transceiver 150, and a detector 160.

[0216] Detector 160 is used to detect whether the phone case 200 is connected to the stylus 300 (i.e., whether the stylus 300 is in place). Exemplarily, detector 160 is used to receive signals emitted by sensor 230. Exemplarily, detector 160 may receive a first detection signal provided by sensor 230 to confirm that the stylus 300 is in place; or, detector 160 may receive a second detection signal provided by sensor 230 to confirm that the stylus 300 is not in place.

[0217] In some examples, when detector 160 receives a first detection signal from sensor 230, detector 160 sends a first control command to power transceiver 150; when detector 160 receives a second detection signal from sensor 230, detector 160 sends a second control command to power transceiver 150.

[0218] In some examples, such as Figure 9As shown, detector 160 may include detection coil 161 and in-situ detection chip 162. In-situ detection chip 162 may be coupled to both detection coil 161 and power transceiver 150.

[0219] The detection coil 161 can have inductive impedance, thus enabling the detection of signals within a specific frequency range (e.g., 30kHz-32kHz).

[0220] When the detection coil 161 detects a signal within a specific frequency range, a third current can be sent to the in-situ detection chip 162. Upon receiving the third current from the detection coil 161, the in-situ detection chip 162 issues a first control command to the power transceiver 150. The first control command instructs the power transceiver to form a first magnetic field.

[0221] If the detection coil 161 does not detect a signal within a specific frequency range, a third current may not be sent to the in-situ detection chip 162. If the in-situ detection chip 162 does not receive the third current from the detection coil 161, it sends a second control command to the power transceiver 150. The second control command instructs the power transceiver not to generate a first magnetic field.

[0222] In some examples, such as Figure 9 As shown, the energy transceiver 150 may include a transceiver chip 151 and a first coil 152. The transceiver chip 151 may be coupled to both the mobile phone battery 140 and the first coil 152, and the transceiver chip 151 may also be coupled to the detector 160.

[0223] The transceiver chip 151 can select whether the mobile phone 100 should enable the wireless reverse charging function based on the control command sent by the detector 160.

[0224] When the transceiver chip 151 receives the first control command provided by the detector 160, the transceiver chip 151 can transmit the second current output by the mobile phone battery 140 to the first coil 152, so that the first coil 152 uses the second current output by the mobile phone battery 140 to form a first magnetic field. Understandably, when the transceiver chip 151 receives the first control command provided by the detector 160, the mobile phone activates its reverse wireless charging function.

[0225] When the transceiver chip 151 receives the second control command provided by the detector 160, the transceiver chip 151 does not provide the second current to the first coil 152, and therefore the first coil 152 does not form the first magnetic field. Understandably, when the transceiver chip 151 receives the second control command provided by the detector 160, the mobile phone disables its reverse wireless charging function.

[0226] The mobile phone case 200 may include an energy processor 220, a sensor 230, a first contact point 240, and a second contact point 250.

[0227] The energy processor 220, the first contact point 240, and the second contact point 250 can be referred to in the previous description, and will not be repeated here.

[0228] like Figure 9 As shown, sensor 230 may include an induction coil. The induction coil may be coupled to both the first contact point 240 and the second contact point 250.

[0229] In some examples, when the stylus 300 is not in place, the circuit between the first contact point 240 and the second contact point 250 is broken, and the induction coil may not emit a detection signal; when the stylus 300 is in place, a circuit may be formed between the first contact point 240 and the second contact point 250, so that the induction coil can emit a first detection signal.

[0230] In other examples, when the stylus 300 is not in place, the resonant circuit consisting of the first contact point 240 and the second contact point 250 can use the induction coil to emit a signal of the first frequency (second detection signal); when the stylus 300 is in place, the resonant circuit consisting of the first contact point 240 and the second contact point 250 can use the induction coil to emit a signal of the second frequency (first detection signal).

[0231] Figure 9 For instructions on the Zhongshoubi 300 stylus, please refer to... Figure 7 The description of the Zhongshoubi 300 stylus will not be repeated here.

[0232] The following explanation uses the example of a stylus 300 being properly fitted into a phone case 200:

[0233] The first electrode contact 320 on the stylus 300 is coupled to the first connecting contact 240 of the phone case 200, and the second electrode contact 330 on the stylus 300 is coupled to the second connecting contact 250 of the phone case 200. At this time, the induction coil can emit a first detection signal.

[0234] When the detection coil 161 detects the first detection signal, it can send a third current to the in-situ detection chip 162. Upon receiving the third current from the detection coil 161, the in-situ detection chip 162 sends a first control command to the transceiver chip 151. The first control command instructs the energy transceiver to form a first magnetic field.

[0235] When the transceiver chip 151 receives the first control command provided by the detector 160, the transceiver chip 151 can transmit the second current output by the mobile phone battery 140 to the first coil 152, so that the first coil 152 can form a first magnetic field using the second current output by the mobile phone battery 140.

[0236] The energy processor 220 (second coil) can generate a first current based on the first magnetic field formed by the first coil 152. Thus, the first current generated by the energy processor 220 can be transmitted to the first connecting contact 240 and the second connecting contact 250. Since the first connecting contact 240 is coupled to the first electrode contact 320, and the second connecting contact 250 is coupled to the second electrode contact 330, the electrical energy generated by the energy processor 220 can be transmitted to the first electrode contact 320 and the second electrode contact 330 of the stylus 300.

[0237] The receiving chip 340 in the stylus 300 receives electrical energy from the first electrode contact 320 and the second electrode contact 330, and transmits the electrical energy to the charger chip 350. The charger chip 350 converts the electrical energy provided by the phone case 200 into a voltage and current suitable for charging the stylus battery 360, and then supplies it to the stylus battery 360, thereby charging the stylus battery 360.

[0238] The following example illustrates the situation where the stylus 300 is not installed or is improperly installed on the phone case 200:

[0239] The first electrode contact 320 on the stylus 300 is not coupled to the first connection contact 240 of the phone case 200, and / or the second electrode contact 330 on the stylus 300 is not coupled to the second connection contact 250 of the phone case 200. At this time, the induction coil can emit a second detection signal.

[0240] If the detection coil 161 detects the second detection signal, it may not send a third current to the in-situ detection chip 162. If the in-situ detection chip 162 does not receive the third current from the detection coil 161, it sends a second control command to the transceiver chip 151. The second control command is used to instruct the energy transceiver not to form a first magnetic field.

[0241] When the transceiver chip 151 receives the second control command from the detector 160, the transceiver chip 151 does not supply the second current to the first coil 152, therefore the first coil 152 does not form the first magnetic field. The mobile phone 100 will not charge the stylus battery.

[0242] In this embodiment, by utilizing the characteristic of the sensor to send a first detection signal when the stylus 300 is detected in place, the mobile phone 100 can detect the presence of the stylus, thereby automatically activating the wireless reverse charging function and causing the energy transceiver 150 to generate a first magnetic field. Then, the energy processor 220 in the phone case 200 uses the first magnetic field to generate a first current, which is then supplied to the stylus 300, thus automatically charging the stylus 300 from the mobile phone 100.

[0243] In this way, users only need to manually insert the stylus 300 into the phone case 200 to enable the phone 100 to automatically charge the stylus 300, reducing the user's operation steps and improving the convenience of charging the stylus 300.

[0244] The following describes a specific circuit example to illustrate how the induction coil in the mobile phone case 200 emits a first detection signal or a second detection signal.

[0245] Figure 10 Figure (a) shows the equivalent circuit diagram when the stylus 300 is not in place. Figure 10 As shown in (a), the detection coil 161 inside the mobile phone 100 has inductive impedance, which can be equivalent to a first inductor L1; the first coil 152 has inductive impedance, which can be equivalent to a second inductor L2. The induction coil inside the mobile phone protective case 200 has inductive impedance, which can be equivalent to a third inductor L3; the second coil has inductive impedance, which can be equivalent to a fourth inductor L4.

[0246] Additionally, the mobile phone 100 may also include a second capacitor, which is connected in series with the first coil 152. Therefore, as... Figure 10 As shown in (a), the second capacitor can be equivalent to the second capacitor C2. The mobile phone protective case 200 may also include a third capacitor and a fourth capacitor, with the third capacitor connected in series with the induction coil and the fourth capacitor connected in series with the second coil. Therefore, as... Figure 10 As shown in (a), the third capacitor can be equivalent to the third capacitor C3, and the fourth capacitor can be equivalent to the fourth capacitor C4.

[0247] exist Figure 10 In example (a), the third inductor L3 and the third capacitor C3 together form a resonant circuit, which can use the induction coil to emit a signal of a first frequency (the second detection signal). At this time, the first frequency depends on the values ​​of the third inductor L3 and the third capacitor C3.

[0248] Figure 10 Figure (b) shows the equivalent circuit diagram with the stylus 300 in place. Figure 10As shown in (b), the detection coil 161 inside the mobile phone 100 has inductive impedance, which can be equivalent to a first inductor L1; the first coil 152 has inductive impedance, which can be equivalent to a second inductor L2. Since the mobile phone case 200 is coupled to the stylus 300, the induction coil inside the mobile phone case 200 has inductive impedance, which can be equivalent to a third inductor L3'; the second coil has inductive impedance, which can be equivalent to a fourth inductor L4'.

[0249] It should be noted that, Figure 10 The induction coil in (a) is equivalent to a third inductor L3, while Figure 10 The induction coil in (b) is equivalent to a third inductor L3', a difference caused by the coupling between the phone case 200 and the stylus 300. Similarly, Figure 10 The second coil in (a) is equivalent to the fourth inductor L4, while Figure 10 The second coil in (b) is equivalent to the fourth inductor L4'. This difference is also due to the coupling between the phone case 200 and the stylus 300.

[0250] Additionally, the mobile phone 100 may also include a second capacitor, which is connected in series with the first coil 152. Therefore, as... Figure 10 As shown in (b), the second capacitor can be equivalent to the second capacitor C2. The mobile phone protective case 200 may also include a third capacitor and a fourth capacitor, with the third capacitor connected in series with the induction coil and the fourth capacitor connected in series with the second coil. Therefore, as... Figure 10 As shown in (b), the third capacitor can be equivalent to the third capacitor C3, and the fourth capacitor can be equivalent to the fourth capacitor C4. The stylus 300 may include a fifth capacitor, the first plate of which is coupled to the first electrode contact 320, and the second plate of which is coupled to the second electrode contact 330. Therefore, as Figure 10 As shown in (b), the fifth capacitor can be equivalent to the fifth capacitor C5.

[0251] exist Figure 10 In example (b), the third inductor L3', the third capacitor C3, and the fifth capacitor C5 together form a resonant circuit. The resonant circuit can use the induction coil to emit a signal of the second frequency (the first detection signal). At this time, the second frequency depends on the values ​​of the third inductor L3', the third capacitor C3, and the fifth capacitor C5.

[0252] It is important to note that the first and second frequencies need to be far from the signal transmission frequency corresponding to the reverse wireless charging function, so that the signals of the first and second frequencies present a high impedance state to the first and second coils. For example, when the signal transmission frequency corresponding to the reverse wireless charging function is 90kHz-120kHz, the first and second frequencies can be less than 50kHz or greater than 160kHz.

[0253] In some embodiments, the mobile phone 100 may also include an NFC coil for implementing near field communication (NFC) functionality. The NFC coil and the detection coil 161 may be two independent coils.

[0254] In some other embodiments, where the mobile phone 100 includes an NFC coil, the NFC coil can be used as the detection coil 161.

[0255] For example, the signal frequency band corresponding to the NFC function is 13.56MHz. Therefore, by changing the value of at least one of the third inductor L3', the third capacitor C3, and the fifth capacitor C5, the second frequency can be made approximately equal to 13.56MHz, and by changing the values ​​of the third inductor L3' and the third capacitor C3, the first frequency can be made far from 13.56MHz. In this way, the signal of the first frequency presents a high impedance state to the NFC coil, and the NFC coil will not receive the signal of the first frequency.

[0256] Figure 11 This illustration shows another scenario in which a mobile phone case charges a stylus, as shown in some embodiments of this application. Figure 12 It shows Figure 11 A structural diagram of a mobile phone, a phone case, and a wireless charging dock; Figure 13 It shows Figure 11 Equivalent circuit diagrams of a mobile phone, a phone case, and a wireless charging dock. Figure 11 In the embodiment shown, the mobile phone 100, the mobile phone case 200, and the wireless charging dock 400 together constitute the charging system.

[0257] Figure 11 The illustrated embodiments and Figure 8 Compared to the illustrated embodiment, the difference is that the stylus 300 is not in place, the mobile phone 100 does not charge the stylus 300, and the wireless charging base 400 charges the mobile phone 100.

[0258] like Figure 11 As shown, the mobile phone 100 is covered with a mobile phone protective case 200. The mobile phone 100 and the mobile phone protective case 200 are placed on the wireless charging dock 400, which is used to charge the mobile phone 100.

[0259] Figure 11 In the illustrated embodiment, the wireless charging dock 400 emits a second magnetic field. Since the phone case 200 is not equipped with a stylus, it can generate a first current without utilizing the second magnetic field. When the phone 100 activates its wireless charging function, the energy transceiver 150 utilizes the second magnetic field to generate a fourth current, thereby charging the phone 100.

[0260] The following is combined Figure 12 and Figure 13 This section provides a detailed description of the hardware structure of the mobile phone 100, the mobile phone case 200, and the wireless charging dock 400, as well as the charging process of the wireless charging dock 400 for the mobile phone 100.

[0261] The mobile phone 100 may include a mobile phone battery 140, an energy transceiver 150, and a detector 160. The structure and function of each hardware component of the mobile phone 100 can be found in [reference needed]. Figure 5 and Figure 9 The structure and function of each hardware component in the Zhongshou 100 are not detailed here.

[0262] The mobile phone case 200 may include an energy processor 220, a sensor 230, a first contact point 240, and a second contact point 250. The structure and function of each hardware component of the mobile phone case 200 can be found in [reference needed]. Figure 3 and Figure 9 The structure and function of each hardware component in the 200-inch mobile phone protective case will not be elaborated here.

[0263] The wireless charging dock 400 can be either an active wireless charging dock or a portable wireless charging dock. An active wireless charging dock means it can be connected to another power source to obtain power. A portable wireless charging dock means it can be taken outdoors to wirelessly charge your phone.

[0264] The wireless charging dock 400 may include an energy transmitter 410 and an energy provider 420. In an active charging dock, the energy provider 420 may be a plug or power adapter, and the energy provider 420 obtains mains power by plugging into a socket. In a portable wireless charging dock, the energy provider 420 may be the dock's battery.

[0265] The energy transmitter 410 is used to obtain electrical energy from the energy provider 420 and convert the electrical energy into wireless energy for external transmission. Exemplarily, the energy transmitter 410 generates a second magnetic field based on the current provided by the energy provider 420.

[0266] like Figure 12 As shown, in some examples, the energy transmitter 410 may include a transmit (TX) chip 411 and a third coil 412. The transmit chip 411 can obtain current from the energy provider 420 and transmit the current to the third coil 412. The third coil 412 can use the current to generate a second magnetic field. The third coil 412 may include a soft magnetic material. For example, the third coil 412 may include an iron-silicon alloy, magnetic ferrite, etc., without limitation.

[0267] When both the phone 100 and the phone case 200 are on the wireless charging dock 400:

[0268] The power provider 420 supplies electrical energy to the transmitting chip 411, which then transmits the acquired current to the third coil 412. The third coil 412 can use the current to generate a second magnetic field.

[0269] The phone case 200 is not coupled to the stylus 300. The circuit containing the second coil in the phone case 200 is open (or can be understood as not forming a closed loop). The second coil does not generate the first current under the second magnetic field.

[0270] The first coil 152 in the mobile phone 100 can generate a fourth current based on the second magnetic field provided by the wireless charging base 400. This fourth current generated by the first coil 152 can then be transmitted to the transceiver chip 151. The transceiver chip 151 then transmits the acquired fourth current to the mobile phone battery 140, thereby charging the mobile phone battery 140.

[0271] The following example uses a specific circuit to illustrate how the wireless charging dock 400 charges the mobile phone 100.

[0272] Figure 13 The equivalent circuit diagram shows that both the mobile phone 100 and the mobile phone case 200 are located on the wireless charging dock 400. Figure 13 As shown, since the mobile phone 100 is placed on the wireless charging base 400, the detection coil 161 inside the mobile phone 100 has inductive impedance, which can be equivalent to the first inductor L1; the first coil 152 has inductive impedance, which can be equivalent to the second inductor L2'. Since the mobile phone case 200 is placed on the wireless charging base 400, the induction coil inside the mobile phone case 200 has inductive impedance, which can be equivalent to the third inductor L3; the second coil has inductive impedance, which can be equivalent to the fourth inductor L4.

[0273] It should be noted that, Figure 10 In (a), the first coil 152 is equivalent to the second inductor L2, while Figure 13 The first coil is equivalent to the second inductor L2', a difference caused by the proximity of the soft magnetic material in the charging base 400 to the first coil. Similarly, Figure 10 The second coil in (a) is equivalent to the fourth inductor L4, while Figure 13 The second coil is equivalent to the fourth inductor L4. This difference is also due to the soft magnetic material in the charging base 400 being close to the second coil.

[0274] Additionally, the mobile phone 100 may also include a second capacitor, which is connected in series with the first coil 152. Therefore, as... Figure 13As shown, the second capacitor can be equivalent to the second capacitor C2. The mobile phone protective case 200 may also include a third capacitor and a fourth capacitor, with the third capacitor connected in series with the induction coil and the fourth capacitor connected in series with the second coil. Therefore, as... Figure 13 As shown, the third capacitor can be equivalent to the third capacitor C3, and the fourth capacitor can be equivalent to the fourth capacitor C4. The wireless charging base 400 may include a sixth capacitor, which is connected in series with the third coil 412. Therefore, as Figure 13 As shown, the sixth capacitor can be equivalent to the sixth capacitor C6.

[0275] The third inductor L3 and the third capacitor C3 together form a resonant circuit. The resonant circuit can use the induction coil to emit a signal of the first frequency (the second detection signal). As previously explained, the first frequency is far from the signal transmission frequency corresponding to the wireless charging function (e.g., 100KHz), and the first frequency is far from the second frequency (e.g., the NFC coil acts as the detection coil 161, and the second frequency is 13.56MHz).

[0276] Therefore, when the stylus 300 is not in place, and the phone 100 and phone case 200 are simultaneously placed on the wireless charging dock 400, the signal (second detection signal) of the first frequency emitted by the sensor 220 in the phone case 200 presents a high impedance state to the detector 160 and the power transceiver 150. Thus, the signal emitted by the sensor 220 in the phone case 200 will not affect the phone's wireless charging and NFC functions.

[0277] In some examples, enabling the wireless positive charging function on phone 100 can be achieved by automatically activating it in response to a change in the inductance value of either the first or second coil caused by the charging base 400 approaching. Alternatively, in other examples, phone 100 may enable the wireless positive charging function by default even when the wireless reverse charging function is not enabled.

[0278] Figure 14 This illustration shows another scenario in which a mobile phone case charges a stylus, as shown in some embodiments of this application. Figure 15 It shows Figure 14 A schematic diagram of the structure of a mobile phone, a phone case, a stylus, and a wireless charging dock. Figure 14 In the illustrated embodiment, the mobile phone 100, the mobile phone case 200, the stylus 300, and the wireless charging dock 400 together constitute the charging system.

[0279] Figure 14 The illustrated embodiments and Figure 11Compared to the illustrated embodiment, the difference is that the stylus 300 is mounted on the phone case 200, the stylus 300 is in place, and the phone 100 and the stylus 300 are simultaneously on the wireless charging base 400.

[0280] like Figure 14 As shown, in some embodiments, the mobile phone 100 is covered with a mobile phone protective case 200, and the stylus 300 is inserted into the mobile phone protective case 200 in a position. The mobile phone 100, the mobile phone protective case 200 and the stylus 300 are placed on the wireless charging dock 400 at the same time, and the wireless charging dock 400 can charge the mobile phone 100 and the stylus 300.

[0281] Figure 14 In the illustrated embodiment, a second magnetic field is emitted outward from the wireless charging base 400. A stylus 300 is mounted on the phone case 200, and the phone case 200 can use the second magnetic field to generate a first current to charge the stylus 300. Simultaneously, the phone 100 activates its wireless positive charging function, causing the energy transceiver 150 to use the second magnetic field to generate a fourth current, thereby charging the phone 100.

[0282] The following is combined Figure 15 This document provides a detailed description of the hardware structure of the mobile phone 100, mobile phone case 200, stylus 300, and wireless charging dock 400, as well as the charging process of the wireless charging dock 400 for the mobile phone 100 and stylus 300.

[0283] The mobile phone 100 may include a mobile phone battery 140, an energy transceiver 150, and a detector 160. The structure and function of each hardware component of the mobile phone 100 can be found in [reference needed]. Figure 5 and Figure 9 The structure and function of each hardware component in the Zhongshou 100 are not detailed here.

[0284] The mobile phone case 200 may include an energy processor 220, a sensor 230, a first contact point 240, and a second contact point 250. The structure and function of each hardware component of the mobile phone case 200 can be found in [reference needed]. Figure 3 and Figure 9 The structure and function of each hardware component in the 200-inch mobile phone protective case will not be elaborated here.

[0285] The stylus 300 may include a first electrode contact 320, a second electrode contact 330, a receiver chip 340, a charger chip 350, and a stylus battery 360. The structure and function of each hardware component of the stylus 300 can be found in [reference needed]. Figure 2 and Figure 9 The structure and function of each hardware component in the Zhongshoubi 300 stylus will not be elaborated here.

[0286] The wireless charging dock 400 may include an energy transmitter 410 and an energy provider 420. The structure and function of each hardware component of the wireless charging dock 400 can be found in [reference needed]. Figure 12 The structure and function of each hardware component in the wireless charging dock 400 will not be elaborated here.

[0287] When the mobile phone 100, the mobile phone case 200, and the stylus 300 are all on the wireless charging dock 400:

[0288] The power provider 420 supplies current to the transmitter chip 411, which then transmits the acquired current to the third coil 412. The third coil 412 can use the current to generate a second magnetic field.

[0289] The phone case 200 and the stylus 300 are coupled together. The circuit containing the second coil forms a loop. Under the influence of the second magnetic field generated by the third coil 412, the second coil can generate a small first current. The first current generated by the second coil is transmitted to the two electrode contacts of the stylus 300 through two connection points, and then to the stylus battery 360, thereby charging the stylus battery 360.

[0290] In addition, most of the second magnetic field generated by the third coil 412 will pass through the second coil.

[0291] The first coil 152 in the mobile phone 100 can generate a fourth current based on the second magnetic field generated by the third coil 412. This fourth current generated by the first coil 152 can then be transmitted to the transceiver chip 151. The transceiver chip 151 then transmits the acquired fourth current to the mobile phone battery 140, thereby charging the mobile phone battery 140.

[0292] It should be noted that only a small portion of the energy emitted outward by the third coil 412 (the second magnetic field) is used to charge the stylus battery 360, while the majority is used to charge the mobile phone battery 140.

[0293] Because the stylus battery 360 has a small battery capacity and low charging power, while the wireless charging base 400 emits a large amount of energy, it may cause the stylus battery 360 to be damaged due to excessive power. Therefore, in some embodiments, the stylus 300 may also include a switch 370 and a controller (not shown).

[0294] The switch can be connected in series between the first electrode contact 320 and the receiving chip 340; or, the switch can be connected in series between the second electrode contact 330 and the receiving chip 340; or, the switch can be connected in series between the receiving chip 340 and the charger chip 350; or, the switch can be connected in series between the charger chip 350 and the stylus battery 360. Regardless of the connection position of the switch, when the switch is in the ON state, the stylus battery 360 forms a charging circuit, thereby charging the stylus battery 360; when the switch is in the OFF state, the stylus battery 360 cannot form a charging circuit, thereby not charging the stylus battery 360.

[0295] The controller is connected to the switch and is used to control the switch to be in the on or off state.

[0296] In some examples, the switch may include a high-speed switch. The controller can control the switch to be in the ON state by providing an ON command to the high-speed switch; or, the controller can control the switch to be in the OFF state by providing an OFF command to the high-speed switch.

[0297] In other examples, the switch may include a transistor. The transistor may be a thin film transistor (TFT), a metal-oxide-semiconductor field-effect transistor (MOSFET), a bipolar junction transistor, or any other suitable transistor, without limitation here.

[0298] Taking a switch including an N-type MOSFET as an example, the controller can control the N-type MOSFET to be in the on state by providing a high-level signal (turn-on command) to the N-type MOSFET; the controller can control the N-type MOSFET to be in the off state (disconnect state) by providing a low-level signal (turn-off command) to the N-type MOSFET.

[0299] It should be noted that the switch should be in the ON state by default. Understandably, the switch should remain in the ON state unless the controller controls it to be in the OFF state.

[0300] The following explains in detail how to charge the stylus 300 and mobile phone 100 using the wireless charging dock 400.

[0301] Scenario 1: The stylus 300 has residual battery power and establishes a communication connection with the mobile phone 100 (e.g., Bluetooth communication, Wi-Fi connection, and ZigBee connection). For Scenario 1, please refer to... Figure 16 , Figure 16This diagram illustrates a process of charging a stylus 300 and a mobile phone 100 using a wireless charging dock 400. Figure 16 As shown, it includes:

[0302] Step S510: Mobile phone 100 confirms whether stylus 300 is in place.

[0303] As previously explained, how phone 100 uses phone case 200 to determine if stylus 300 is in place will not be repeated here. If phone 100 determines that stylus 300 is in place, proceed to step 520; if phone 100 determines that stylus 300 is not in place, proceed to step S560.

[0304] Step S520: Mobile phone 100 obtains the power value of stylus battery 360 in stylus 300.

[0305] Since the stylus 300 establishes a communication connection with the mobile phone 100, the mobile phone 100 can obtain the battery level of the stylus 300.

[0306] Step S530: Is the battery level of the stylus 360 lower than the preset battery threshold?

[0307] If the battery level of the stylus battery 360 is less than the preset battery level threshold, proceed to step S540; if the battery level of the stylus battery 360 is greater than or equal to the preset battery level threshold, proceed to step S550.

[0308] The power threshold can be 80%, 85%, 90%, 95%, or 100% of the total capacity of the stylus battery 360, and is not limited here. For example, the power threshold is 100% of the total capacity of the stylus battery 360, and step S530 can actually be understood as whether the stylus battery 360 is fully charged.

[0309] Step S540: Mobile phone 100 controls wireless charging dock 400 to work in the first power mode.

[0310] During the process of the mobile phone 100 controlling the wireless charging dock 400 to work in the first power mode, the wireless charging dock 400 simultaneously charges the mobile phone 100 and the stylus 300.

[0311] The wireless charging dock 400 operates in a first power mode, meaning it generates a second magnetic field at the first power. During this process, the first coil 152 of the phone 100 generates a fourth current to charge the phone battery 140, and the first current generated by the second coil of the phone case 200 charges the stylus battery 360. The embodiments of this application do not limit the specific value of the first power. However, it is necessary to ensure that the first current generated by the second coil of the phone case 200 charging the stylus battery 360 during the charging process, under the energy (e.g., the second magnetic field) emitted by the wireless charging dock 400 at the first power, does not damage the stylus battery 360.

[0312] Understandably, when the wireless charging dock 400 operates in the first power mode, its output power is relatively low. For example, when the wireless charging dock 400 operates in the first power mode, its output power is less than a preset safe power.

[0313] In some examples, the mobile phone 100 and the wireless charging dock 400 can communicate via a suitable communication module. For example, the mobile phone 100 includes a Bluetooth module, and the wireless charging dock 400 also includes a Bluetooth module. Bluetooth communication is established between the mobile phone 100 and the wireless charging dock 400, thereby enabling the transmission of a first power control command for controlling the wireless charging dock 400 to operate in a first power mode.

[0314] In other examples, the mobile phone 100 and the wireless charging dock 400 can communicate via intraband transmission. Understandably, wireless charging can be achieved between the first coil 152 of the mobile phone 100 and the third coil 412 of the wireless charging dock 400, while data transmission can also be performed. For example, the first coil 152 of the mobile phone 100 can transmit signals with different envelope values ​​to send control commands representing different meanings to the wireless charging dock 400.

[0315] In this way, the first coil 152 of the mobile phone 100 can transmit a first power control command to the wireless charging dock 400 to control the wireless charging dock 400 to operate in a first power mode by transmitting a signal with an envelope value.

[0316] After step S540 is executed, return to re-execute steps S520 and S530 until step S550 is executed.

[0317] Step S550: The switch for controlling the stylus 300 by the mobile phone 100 is in the off state.

[0318] Bluetooth communication is established between mobile phone 100 and stylus 300, so mobile phone 100 can use this Bluetooth communication to send a disconnect control command to stylus 300. After receiving the disconnect control command, stylus 300's controller responds to the disconnect control command and controls the switch to be in the off state.

[0319] When the switch is in the off state, the circuit containing the second coil cannot form a loop, which prevents the second coil from generating the first current based on the second magnetic field. Therefore, when the switch is in the off state, the stylus battery 360 cannot be charged.

[0320] Step S560: Mobile phone 100 controls wireless charging dock 400 to work in the second power mode.

[0321] When the mobile phone 100 controls the wireless charging dock 400 to work in the second power mode, the wireless charging dock 400 charges the mobile phone 100 but does not charge the stylus 300.

[0322] The wireless charging dock 400 operates in the second power mode, meaning it generates a second magnetic field at the second power. During this process, the first coil 152 of the mobile phone 100 generates a fourth current to charge the phone battery 140. The output power of the wireless charging dock 400 in the second power mode is greater than its output power in the first power mode.

[0323] In some examples, the mobile phone 100 and the wireless charging dock 400 can communicate via a suitable communication module. For example, the mobile phone 100 includes a Bluetooth module, and the wireless charging dock 400 also includes a Bluetooth module. Bluetooth communication is established between the mobile phone 100 and the wireless charging dock 400, thereby enabling the transmission of a second power control command for controlling the wireless charging dock 400 to operate in a second power mode.

[0324] In other examples, the mobile phone 100 and the wireless charging dock 400 can communicate via in-band. Understandably, wireless charging can be achieved between the first coil 152 of the mobile phone 100 and the third coil 412 of the wireless charging dock 400, while data transmission can also be performed. For example, the first coil 152 of the mobile phone 100 can transmit signals with different envelope values ​​to send control commands representing different meanings to the wireless charging dock 400.

[0325] In this way, the first coil 152 of the mobile phone 100 can transmit a second power control command to the wireless charging dock 400 to control the wireless charging dock 400 to operate in the second power mode by transmitting a signal with an envelope value.

[0326] Since the wireless charging dock 400 has already set the switch of the stylus 300 to the off state before it operates in the second power mode, increasing the output power of the wireless charging dock 400 will not damage the stylus battery 360, thus ensuring the safety of the stylus 300 when the wireless charging dock 400 charges the mobile phone 100 at high power.

[0327] Figure 16 In the illustrated embodiment, when the stylus battery 360 is determined to be low, the mobile phone 100 controls the wireless charging dock 400 to charge both the mobile phone 100 and the stylus 300 simultaneously at a low power. Once the stylus battery 360 is high or fully charged, the mobile phone 100 then controls the wireless charging dock 400 to charge the mobile phone 100 at a higher power, without charging the stylus 300. This ensures the safety of the stylus 300 when the wireless charging dock 400 is charging the mobile phone 100 at high power. Furthermore, because the stylus battery 360 has a small capacity, the charging time for the stylus 300 by the wireless charging dock 400 is also short (approximately 3-5 minutes), therefore the low power output of the wireless charging dock 400 has a minimal impact on the charging time of the mobile phone 100.

[0328] Scenario 2: The stylus 300 and the mobile phone 100 have not established a communication connection. For example, the stylus 300 previously established a communication connection with the mobile phone 100, but the stylus 300 is out of power and cannot establish a communication connection with the mobile phone 100; or, the stylus 300 has never established a communication connection with the mobile phone 100. In Scenario 2, the receiving chip 340 of the stylus 300 may include a communication unit. When the stylus battery 360 has power or the two electrode contacts receive power, the communication unit can transmit charging information of the stylus battery 360. This charging information can be transmitted using in-band communication.

[0329] Please see Figure 17 , Figure 17 This diagram illustrates another flowchart of how the wireless charging dock 400 charges the stylus 300 and the mobile phone 100. (See diagram for reference.) Figure 17 As shown, the charging method includes steps S610-S690.

[0330] Step S610: The stylus 300 provides charging information to the wireless charging base 400.

[0331] Even when the stylus 300 has power but has never established a communication connection with the mobile phone 100, the stylus 300 can use the communication unit to transmit charging information for the stylus battery 360. Alternatively, when the stylus 300 is out of power, the wireless charging base 400 can output a low power by default, allowing the two electrode contacts to receive power, thus enabling the stylus 300 to use the communication unit to transmit charging information for the stylus battery 360.

[0332] The wireless charging dock 400 receives charging information from the stylus battery 360, thereby establishing communication between the stylus 300 and the wireless charging dock 400.

[0333] During the communication process between the stylus 300 and the wireless charging dock 400, the mobile phone 100 does not respond to the connection request from the wireless charging dock 400.

[0334] Step S620: In response to the charging information, the wireless charging dock 400 operates in the third power mode.

[0335] When the wireless charging dock 400 is operating in the third power mode, it simultaneously charges the mobile phone 100 and the stylus 300.

[0336] The wireless charging dock 400 operates in the third power mode, meaning that it generates a second magnetic field at the third power. During this process, the first coil 152 of the mobile phone 100 generates a fourth current to charge the mobile phone battery 140, and the second coil of the mobile phone case 200 generates a first current to charge the stylus battery 360. The embodiments of this application do not limit the specific value of the third power. However, it is required that the output power of the wireless charging dock 400 when operating in the third power mode is less than or equal to the output power of the wireless charging dock 400 when operating in the first power mode.

[0337] Understandably, the wireless charging dock 400 operates in the third power mode. Under the energy emitted outward by the wireless charging dock 400 (such as the second magnetic field), the first current generated by the second coil of the phone case 200 charges the stylus battery 360 without damaging the stylus battery 360.

[0338] Step S630: The stylus 300 establishes a communication connection with the mobile phone 100.

[0339] The wireless charging dock 400 operates in the third power mode, continuously charging the stylus 300. Once the stylus battery 360 has reached a sufficient charge level, the stylus 300 establishes a communication connection with the mobile phone 100. For example, a stylus 300 that previously had a communication connection with the mobile phone 100 will directly establish a communication connection with the mobile phone 100 after its charge level has increased. As another example, a stylus 300 that has never had a communication connection with the mobile phone 100 may establish a communication connection with the mobile phone 100 after activation.

[0340] Step S640: The mobile phone 100 controls the stylus 300 to disconnect from the wireless charging dock 400.

[0341] To avoid the problem of simultaneous communication between the mobile phone 100 and the stylus 300 with the wireless charging dock 400, which could cause logical confusion in the wireless charging dock 400, after the stylus 300 establishes a communication connection with the mobile phone 100, the mobile phone 100 sends a disconnect command to the stylus 300, controlling the stylus 300 to disconnect from the wireless charging dock 400. In this way, only the mobile phone 100 communicates with the wireless charging dock 400. Understandably, the charging needs of the stylus 300 are also provided to the wireless charging dock 400 by the mobile phone 100.

[0342] For example, the stylus 300 and the mobile phone 100 each establish a Bluetooth communication connection using their own Bluetooth modules. The mobile phone 100 uses this Bluetooth communication connection to send a disconnection command to the stylus 300. The disconnection command is used to control the stylus 300 to disconnect from the wireless charging dock 400 when a communication connection has been established between the stylus 300 and the wireless charging dock 400; or, the disconnection command is used to control the stylus 300 not to respond to communication requests from the wireless charging dock 400 when a communication connection has not been established between the stylus 300 and the wireless charging dock 400.

[0343] Step S650: Mobile phone 100 obtains the power value of stylus battery 360 in stylus 300.

[0344] Step S660: Is the battery level of the stylus 360 lower than the preset battery threshold?

[0345] If the stylus battery level is less than a preset power threshold, proceed to step S670; if the stylus battery level is greater than or equal to the preset power threshold, proceed to step S680.

[0346] Step S670: Mobile phone 100 controls wireless charging dock 400 to operate in the first power mode.

[0347] After step S670 is executed, return to re-execute steps S650 and S660 until step S680 is executed.

[0348] Step S680: The switch for controlling the stylus 300 by the mobile phone 100 is in the off state.

[0349] Step S690: Mobile phone 100 controls wireless charging dock 400 to operate in the second power mode.

[0350] The explanations of steps S650-S690 can be found in the explanations of steps S520-S560, and will not be repeated here.

[0351] Figure 17 In the illustrated embodiment, before the mobile phone 100 establishes a communication connection with the stylus 300, the stylus 300 establishes a communication connection with the wireless charging dock 400 to control the output power of the wireless charging dock 400. After the mobile phone 100 and the stylus 300 establish a communication connection, the communication connection between the stylus 300 and the wireless charging dock 400 is canceled. This avoids the problem of the wireless charging dock 400 simultaneously receiving control commands from both the mobile phone 100 and the stylus 300, which could cause logical confusion and abnormal charging, thus improving the reliability of the wireless charging dock 400 in charging both the mobile phone 100 and the stylus 300.

[0352] In some other embodiments, such as Figure 14 As shown, the stylus 300 is mounted on the phone case 200, with the stylus 300 in place, and the phone 100 and stylus 300 simultaneously positioned on the wireless charging dock 400. The wireless charging dock 400 can charge the phone 100 first, and then charge the stylus 300.

[0353] In some examples, the wireless charging dock 400 charges the phone 100 and stylus 300 in two stages.

[0354] In the first stage: Once the stylus 300 is confirmed to be in place, the mobile phone 100 can control the stylus 300's switch to be off, and the mobile phone 100 controls the wireless charging dock 400 to operate in the second power mode. Thus, in the first stage, the wireless charging dock 400 only charges the mobile phone 100, and does not charge the stylus 300.

[0355] During the first stage, the phone 100 detects the battery level. If the phone 100 detects that the battery level is equal to or greater than a preset value, it enters the second stage.

[0356] In the second stage: the mobile phone 100 can control the stylus 300 to be in the on / off state, and the mobile phone 100 controls the wireless charging dock 400 to operate in the first power mode. Thus, in the second stage, the wireless charging dock 400 can charge the stylus 300. Even if the mobile phone battery is not fully charged in the first stage, the wireless charging dock 400 can still charge the mobile phone 100 in the second stage.

[0357] In this embodiment, in the first stage, the wireless charging base charges the mobile phone 100 with a larger output power, which enables the mobile phone 100 to charge quickly. After the mobile phone 100 has a high battery level, in the second stage, the wireless charging base charges the stylus 300 with a smaller output power, which ensures the safety of charging the stylus 300.

[0358] Understandably, in Figure 14 In the scenario shown, two charging methods are possible. Charging Method 1: The wireless charging dock 400 charges the stylus 300 and the mobile phone 100 simultaneously. Charging Method 2: The wireless charging dock 400 charges the mobile phone 100 first, then charges the stylus 300. The charging mode implemented by the wireless charging dock 400 can be adjusted according to the user's actual needs. For example, when the mobile phone 100 establishes communication with the wireless charging dock 400, the mobile phone 100 displays a selection window, including options for Charging Method 1 and Charging Method 2. If the user urgently needs to charge the stylus 300, they can manually select Charging Method 1, so the wireless charging dock 400 will charge both the stylus 300 and the mobile phone 100 simultaneously upon starting charging. If the user urgently needs to charge the mobile phone 100, they can manually select Charging Method 2, so the wireless charging dock 400 will first provide high-power charging to the mobile phone 100 upon starting charging.

[0359] It should be noted that the above is merely an example illustrating how a user can choose the charging method of the wireless charging dock 400 based on their actual needs. In actual products, users can also choose other charging methods. Furthermore, the two charging methods described above are also examples of various charging methods available to the charging system. The embodiments of this application do not limit the charging method of the wireless charging dock 400 for the mobile phone 100 and the stylus 300.

[0360] Figure 18 It shows from Figure 8 The scene shown is transformed into Figure 14 A schematic diagram of the scene shown; Figure 19 It shows Figure 18 Flowcharts corresponding to scene transitions in the middle; Figure 20 It shows Figure 18 The equivalent circuit diagram for scene transitions. Understandably, Figure 18 In the embodiment shown, Figure 8 The scene shown is transformed into Figure 14 In the scenario shown, a wireless charging dock 400 was added to the charging system.

[0361] Figure 18 In the illustrated embodiment, when the mobile phone 100 activates its reverse wireless charging function to charge the stylus 300 inserted into the phone case 200, the user places the mobile phone 100, phone case 200, and stylus 300 together on the wireless charging dock 400. At this time, the charging of the stylus 300 by the mobile phone 100 is interrupted, and the wireless charging dock 400 charges both the mobile phone 100 and the stylus 300.

[0362] like Figure 19 As shown, in the event Figure 18 In the case of the scene switching shown, the charging method may include steps S701-S712.

[0363] Step S701: When the mobile phone 100 detects that it is near the wireless charging dock, it turns off the wireless reverse charging function and interrupts the charging of the stylus 300.

[0364] In some examples, when the mobile phone 100 is near the wireless charging dock 400, the mobile phone 100 can sense the radio frequency signal emitted by the wireless charging dock 400 and thus turn off the reverse wireless charging function in response to the radio frequency signal. Therefore, after the mobile phone 100 turns off the reverse wireless charging function, the mobile phone 100 stops emitting the first magnetic field, the second coil in the phone case 200 no longer generates the first current, and the stylus 300 stops charging.

[0365] In other examples, when the mobile phone 100 is close to the wireless charging dock 400, the wireless charging dock 400 may disrupt the first magnetic field emitted by the mobile phone 100 under the wireless reverse charging function due to its own material or the second magnetic field it emits. This will cause the mobile phone 100 to turn off the wireless reverse charging function, and the second coil in the mobile phone case 200 will no longer generate the first current, thereby stopping the stylus 300 from charging.

[0366] Figure 20 Figure (a) shows the equivalent circuit diagram with the stylus 300 in place, and the phone 100, phone case 200, and stylus 300 not on the wireless charging dock 400. Figure 20As shown in (a), the detection coil 161 inside the mobile phone 100 has inductive impedance, which can be equivalent to a first inductor L1; the first coil 152 has inductive impedance, which can be equivalent to a second inductor L2. Since the mobile phone case 200 is coupled to the stylus 300, the induction coil inside the mobile phone case 200 has inductive impedance, which can be equivalent to a third inductor L3'; the second coil has inductive impedance, which can be equivalent to a fourth inductor L4'.

[0367] Figure 20 Figure (b) shows the equivalent circuit diagram with the stylus 300 in place, and the mobile phone 100, mobile phone case 200, and stylus 300 all located on the wireless charging dock 400. Figure 20 As shown in (b), since the mobile phone 100 is placed on the wireless charging base 400, the detection coil 161 inside the mobile phone 100 has inductive impedance, which can be equivalent to the first inductor L1; the first coil 152 has inductive impedance, which can be equivalent to the second inductor L2'. Since the mobile phone case 200 is placed on the wireless charging base 400, the induction coil inside the mobile phone case 200 has inductive impedance, which can be equivalent to the third inductor L3'; the second coil has inductive impedance, which can be equivalent to the fourth inductor L4.

[0368] Due to the function of the wireless charging base 400, the equivalent second inductance of the first coil 152 changes from L2 to L2', and the equivalent fourth inductance of the second coil changes from L4' to L4". This changes the resonant frequency of the phone 100 and the resonant frequency of the phone case 200, causing the phone 100 to turn off the wireless reverse charging function, the second coil in the phone case 200 to no longer generate the first current, and thus the stylus 300 stops charging.

[0369] Step S702: Mobile phone 100 determines whether stylus 300 is in place.

[0370] The method by which the phone 100 uses the phone case 200 to determine whether the stylus 300 is in place has been explained in detail before and will not be repeated here.

[0371] If the mobile phone 100 determines that the stylus 300 is in place, step S703 can be executed; if the mobile phone 100 determines that the stylus 300 is not in place, step S708 can be executed.

[0372] Step S703: Whether the mobile phone 100 and the stylus 300 establish a communication connection.

[0373] The communication connection can be Bluetooth communication, in-band communication, or other suitable communication methods; no limitation is made here.

[0374] When the mobile phone 100 and the stylus 300 establish a communication connection (as in Case 1 above), step S704 can be executed; when the mobile phone 100 and the stylus 300 do not establish a communication connection (as in Case 2 above), step 709 can be executed.

[0375] Step S704: Mobile phone 100 obtains the power value of stylus battery 360 in stylus 300.

[0376] Step S705: Is the battery level of the stylus 360 lower than the preset battery threshold?

[0377] If the battery level of the stylus battery 360 is less than the preset battery level threshold, proceed to step S706; if the battery level of the stylus battery 360 is greater than or equal to the preset battery level threshold, proceed to step S707.

[0378] Step S706: Mobile phone 100 controls wireless charging dock 400 to operate in the first power mode.

[0379] After step S706 is executed, return to re-execute steps S704 and S705 until step S707 is executed.

[0380] Step S707: The switch for controlling the stylus 300 by the mobile phone 100 is in the off state.

[0381] Step S708: Mobile phone 100 controls wireless charging dock 400 to operate in the second power mode.

[0382] For an explanation of steps S704-S708, please refer to the explanation of steps S520-S560 above, which will not be repeated here.

[0383] Step S709: The stylus 300 provides charging information to the wireless charging dock 400.

[0384] Step S710: In response to the charging information, the wireless charging dock 400 operates in the third power mode.

[0385] Step S711: The stylus 300 establishes a communication connection with the mobile phone 100.

[0386] Step S712: The mobile phone 100 controls the stylus 300 to disconnect from the wireless charging dock 400.

[0387] After step S712 is completed, steps S704-S708 are executed.

[0388] For an explanation of steps S709-S712, please refer to the explanation of steps S610-S640 above, which will not be repeated here.

[0389] Figure 19 In the illustrated embodiment, it is possible to Figure 8 The scene shown is transformed into Figure 14 In the scenario shown, by disabling the reverse wireless charging function of the phone 100, the stylus 300 can continue to be charged by the wireless charging dock 400. This ensures the stability of the stylus 300's charging even when the scenario changes.

[0390] Figure 21 It shows from Figure 11 The scene shown is transformed into Figure 14 A schematic diagram of the scene shown; Figure 22 It shows Figure 21 The flowchart corresponding to the scene transition. Understandably, Figure 21 In the embodiment shown, Figure 11 The scene shown is transformed into Figure 14 During the scenario shown, a stylus 300 was added to the charging system.

[0391] like Figure 21 As shown, the mobile phone 100 and the phone case 200 are located on the wireless charging dock 400, while the stylus 300 is not in place. The wireless charging dock 400 charges the mobile phone 100 but not the stylus 300. Then, the user inserts the stylus 300 into the phone case 200, so that the mobile phone 100, phone case 200, and stylus 300 are all on the wireless charging dock 400, with the stylus 300 in place. The wireless charging dock 400 then charges both the mobile phone 100 and the stylus 300.

[0392] like Figure 22 As shown, the charging method may include steps S801-S812.

[0393] Step S801: Mobile phone 100 determines whether stylus 300 is in place.

[0394] The method by which the phone 100 uses the phone case 200 to determine whether the stylus 300 is in place has been explained in detail before and will not be repeated here.

[0395] If the mobile phone 100 determines that the stylus 300 is in place, step S802 can be executed; if the mobile phone 100 determines that the stylus 300 is not in place, step S808 can be executed.

[0396] Step S802: Mobile phone 100 controls charging dock 400 to stop working in the second power mode.

[0397] Figure 11In the scenario shown, the wireless charging dock 400 charges the mobile phone 100 but not the stylus 300. Therefore, referring to step S560, it can be determined that the mobile phone 100 will control the wireless charging dock 400 to form a second magnetic field in the second power mode. And switching to... Figure 14 In the scenario shown, since the user inserts the stylus 300 into the phone case 200, the stylus 300 is in place. If the wireless charging base 400 continues to charge the stylus 300 by forming a second magnetic field in the second power mode, it will damage the stylus battery 360.

[0398] Therefore, when the mobile phone 100 controls the wireless charging base 400 to form the second magnetic field in the second power mode, if the mobile phone 100 detects that the stylus 300 has switched from being out of position to being in position, the mobile phone 100 will control the wireless charging base 400 to stop forming the second magnetic field in the second power mode in order to protect the stylus battery 360.

[0399] Step S803: Whether the mobile phone 100 and the stylus 300 establish a communication connection.

[0400] The communication connection can be Bluetooth communication, in-band communication, or other suitable communication methods; no limitation is made here.

[0401] When the mobile phone 100 and the stylus 300 establish a communication connection (as in Case 1 above), step S804 can be executed; when the mobile phone 100 and the stylus 300 do not establish a communication connection (as in Case 2 above), step 809 can be executed.

[0402] Step S804: Mobile phone 100 obtains the power value of stylus battery 360 in stylus 300.

[0403] Step S805: Is the battery level of the stylus 360 lower than the preset battery threshold?

[0404] If the battery level of the stylus battery 360 is less than the preset battery level threshold, proceed to step S806; if the battery level of the stylus battery 360 is greater than or equal to the preset battery level threshold, proceed to step S807.

[0405] Step S806: Mobile phone 100 controls wireless charging dock 400 to work in the first power mode.

[0406] After step S806 is executed, return to re-execute steps S804 and S805 until step S807 is executed.

[0407] Step S807: The switch for controlling the stylus 300 by the mobile phone 100 is in the off state.

[0408] Step S808: Mobile phone 100 controls wireless charging dock 400 to operate in the second power mode.

[0409] For an explanation of steps S804-S808, please refer to the explanation of steps S520-S560 above, which will not be repeated here.

[0410] Step S809: The stylus 300 provides charging information to the wireless charging base 400.

[0411] Step S810: In response to the charging information, the wireless charging dock 400 operates in the third power mode.

[0412] Step S811: The stylus 300 establishes a communication connection with the mobile phone 100.

[0413] Step S812: The mobile phone 100 controls the stylus 300 to disconnect from the wireless charging dock 400.

[0414] After step S812 is completed, steps S804-S808 are executed.

[0415] For an explanation of steps S809-S812, please refer to the explanation of steps S610-S640 above, which will not be repeated here.

[0416] Figure 22 In the illustrated embodiment, it is possible to Figure 11 The scene shown is transformed into Figure 14 In the scenario shown, mobile phone 100 can control wireless charging dock 400 to interrupt high-power charging of mobile phone 100. Then, mobile phone 100 or stylus 300 can control the operating power of wireless charging dock 400, ensuring that wireless charging dock 400 can safely charge both mobile phone 100 and stylus 300. This ensures the safety of wireless charging dock 400 charging stylus 300 when the scenario changes.

[0417] This application also provides a hardware device, such as... Figure 23As shown, the hardware device includes at least one processor 901 and at least one interface circuit 902. The processor 901 and the interface circuit 902 are interconnected via lines. For example, the interface circuit 902 can be used to receive signals from other devices (e.g., the memory of the hardware device). As another example, the interface circuit 902 can be used to send signals to other devices (e.g., the processor 901 or the screen of the hardware device). Exemplarily, the interface circuit 902 can read instructions stored in the memory and send those instructions to the processor 901. When the instructions are executed by the processor 901, the hardware device can perform the steps in the above embodiments. Of course, the hardware device may also include other discrete components, which are not specifically limited in this application embodiment.

[0418] This application also provides a computer-readable storage medium including computer instructions that, when executed on the controller, cause the controller to perform various functions or steps performed by the mobile phone, stylus, or mobile phone case in the above embodiments.

[0419] This application also provides a computer program product that, when run on a computer, causes the computer to perform various functions or steps performed by the mobile phone, stylus, or mobile phone case in the above method embodiments.

[0420] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0421] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0422] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units; that is, it can be located in one place or distributed in multiple different locations. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0423] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0424] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, essentially or in other words, the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0425] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A protective case for an electronic device, characterized in that, include: Protective shell body; An energy processor is located inside the protective shell body; The energy processor is configured to generate a first current in response to an external magnetic field; The first and second contact points are spaced apart from each other and are both coupled to the energy processor. Both the first and second connecting contact points are exposed on the outer surface of the protective shell body to transmit the first current to the outside of the protective shell body.

2. The electronic device protective case according to claim 1, characterized in that, The electronic device protective case also includes: A sensor is disposed inside the protective housing body and is coupled to both the first connection contact point and the second connection contact point; the sensor is configured to emit a first detection signal when a loop is formed between the first connection contact point and the second connection contact point.

3. The electronic device protective case according to claim 1 or 2, characterized in that, The protective shell body includes: The energy processor is disposed inside the housing cover; A frame, connected to the edge of the cover; A connecting platform is attached to the outer surface of the shell frame, and the first connecting contact point and the second connecting contact point are located on the connecting platform.

4. The electronic device protective case according to any one of claims 1-3, characterized in that, The energy processor includes a second coil.

5. The electronic device protective case according to claim 2, characterized in that, The sensor includes an induction coil; the energy processor includes a second coil; The number of turns of the induction coil is less than the number of turns of the second coil.

6. A charging method, characterized in that, Applied to an electronic device protective case as described in any one of claims 1-5; the method includes: The energy processor responds to an external magnetic field, generates a first current, and transmits the first current to the outside of the protective shell body using the first and second connecting contact points.

7. The method according to claim 6, characterized in that, The electronic device protective case also includes a sensor; the method further includes: When a loop is formed between the first contact point and the second contact point, the sensor emits a first detection signal.

8. An electronic device, characterized in that, The electronic device is used to connect to an electronic device protective case; the electronic device includes: Second battery; A power transceiver is coupled to the second battery; the power transceiver is configured to generate a first magnetic field in response to a first control command, using electrical energy provided by the second battery, so that the electronic device housing generates a first current in response to the first magnetic field.

9. The electronic device according to claim 8, characterized in that, The energy transceiver includes: A transceiver chip is coupled to the second battery; the transceiver chip is configured to output a second current in response to a first control command, using electrical energy provided by the second battery. A first coil is coupled to the transceiver chip; the first coil is configured to receive a second current output by the transceiver chip to form a first magnetic field.

10. The electronic device according to claim 8 or 9, characterized in that, The electronic device also includes: A detector, coupled to the energy transceiver; the detector is configured to provide a first control command to the energy transceiver upon receiving a first detection signal.

11. The electronic device according to claim 10, characterized in that, The detector includes: A detection coil is used to receive the first detection signal; the detection coil is configured to generate a third current upon receiving the first detection signal. A detection chip is coupled to the detection coil; the detection chip is configured to provide a first control command to the energy transceiver upon receiving a third current from the detection coil.

12. The electronic device according to claim 10 or 11, characterized in that, The electronic device includes a near-field communication (NFC) device, which is reused as the detector.

13. The electronic device according to any one of claims 8-12, characterized in that, The electronic device and electronic accessories are all located on the wireless charging base; the electronic device also includes: A communication module is used to be coupled to the electronic accessory; the communication module is configured to obtain the power value of the first battery in the electronic accessory; A control module is coupled to the communication module; the control module is configured to output a cut-off command to the communication module when the power value of the first battery is greater than or equal to a preset power threshold. The communication module is also configured to send the cut-off command to the electronic accessory; the cut-off command is used to instruct the electronic accessory to reject the power provided by the wireless charging dock.

14. The electronic device according to any one of claims 8-13, characterized in that, The electronic device and electronic accessories are all located on the wireless charging base; the electronic device also includes: A communication module is used to couple with the electronic accessory; the communication module is configured to send a disconnection command to the electronic accessory when the electronic device establishes a communication connection with the electronic accessory; the disconnection command is used to instruct the electronic accessory not to establish a communication connection with the wireless charging dock.

15. The electronic device according to any one of claims 8-14, characterized in that, The energy transceiver is also configured to generate a fourth current in response to an external magnetic field to charge the second battery.

16. A charging method, characterized in that, Applied to an electronic device as described in any one of claims 8-15; the method comprises: In response to a first control command, the energy transceiver uses electrical energy provided by the second battery to generate a first magnetic field, so that the electronic device protective case generates a first current in response to the first magnetic field.

17. The method according to claim 16, characterized in that, The electronic device further includes a detector; the method further includes: Upon receiving the first detection signal, the detector outputs a first control command to the energy transceiver.

18. The method according to claim 16 or 17, characterized in that, The electronic device simultaneously establishes communication connections with electronic accessories and a wireless charging dock; the method further includes: The electronic device acquires the charge value of the first battery in the electronic accessory; When the charge level of the first battery is less than a preset charge threshold, the electronic device sends a first power control command to the wireless charging dock; the first power control command is used to indicate that the output power of the wireless charging dock is a first power, which is less than a preset safe power.

19. The method according to claim 18, characterized in that, The method further includes: If the charge level of the first battery is greater than or equal to a preset charge threshold, the electronic device sends a cut-off command to the electronic accessory; the cut-off command is used to instruct the electronic accessory to reject the power provided by the wireless charging dock. The electronic device sends a second power control command to the wireless charging dock; the second power control command is used to indicate that the output power of the wireless charging dock is a second power, which is greater than the first power.

20. The method according to claim 16 or 17, characterized in that, The electronic device and electronic accessories are all located on a wireless charging base; the method further includes: The electronic device acquires the communication status with the electronic accessory; If the communication status indicates that the electronic device and the electronic accessory have not established a communication connection, the electronic device will not establish a communication connection with the wireless charging dock; or, When the communication status indicates that the electronic device has established a communication connection with the electronic accessory, the electronic device sends a disconnection command to the electronic accessory, and the electronic device establishes a communication connection with the wireless charging dock; the disconnection command is used to instruct the electronic accessory not to establish a communication connection with the wireless charging dock.

21. The method according to claim 20, characterized in that, After the electronic device fails to establish a communication connection with the wireless charging dock, the method further includes: The electronic device establishes a communication connection with the electronic component; The electronic device sends a disconnection command to the electronic accessory, and the electronic device establishes a communication connection with the wireless charging dock; the disconnection command is used to instruct the electronic accessory not to establish a communication connection with the wireless charging dock.

22. An electronic component, characterized in that, The electronic components include: First battery; First electrode contact and second electrode contact, the first electrode contact being coupled to the first battery, and the second electrode contact being coupled to the first battery; A switch is connected in series between the first electrode contact and the first battery, or in series between the second electrode contact and the first battery; the switch is configured to be in an open state in response to a cut-off command.

23. A charging method, characterized in that, Applied to the electronic accessory as described in claim 22; the method includes: In response to a cut-off command, the switch is in an open state, causing the first battery to reject electrical energy supplied by the first electrode contact or the second electrode contact.

24. The method according to claim 23, characterized in that, The electronic accessory simultaneously establishes a communication connection with both the electronic device and the wireless charging dock; the method further includes: In response to a disconnection command provided by the electronic device, the electronic accessory disconnects its communication connection with the wireless charging dock.

25. A charging system, characterized in that, include: The electronic device as described in any one of claims 8-15; The electronic device protective case as described in any one of claims 1-5, wherein the electronic device protective case is connected to the electronic device; and, The electronic component as claimed in claim 22, wherein the first electrode contact of the electronic component is coupled to the first connecting contact of the electronic device protective case, and the second electrode contact of the electronic component is coupled to the second connecting contact of the electronic device protective case.

26. The charging system according to claim 25, characterized in that, The charging system also includes: A wireless charging dock for holding the electronic device, the protective case of the electronic device, and the electronic accessories; the wireless charging dock is configured to provide a second magnetic field.

27. A charging method, characterized in that, Applied to the charging system as described in claim 25; the method includes: The electronic device uses electrical energy provided by the second battery to generate a first magnetic field; The electronic device protective case generates a first current in response to the first magnetic field and provides the first current to the electronic accessory to charge the electronic accessory.

28. The method according to claim 27, characterized in that, The charging system also includes a wireless charging dock configured to provide a second magnetic field. After the electronic device uses electrical energy provided by the second battery to form a first magnetic field, the method further includes: When the electronic device detects proximity to the wireless charging base, the electronic device stops generating the first magnetic field. The electronic device protective case generates a first current in response to the second magnetic field and provides the first current to the electronic accessory to charge the first battery; and / or, the electronic device generates a fourth current in response to the second magnetic field to charge the second battery.

29. The method according to claim 27, characterized in that, The charging system also includes a wireless charging dock; the method further includes: The wireless charging base forms a second magnetic field corresponding to the second power. The electronic device generates a fourth current in response to the second magnetic field corresponding to the second power, so as to charge the second battery; When the electronic device detects that the electronic accessory is in place, the wireless charging base generates a second magnetic field corresponding to a first power; the first power is less than the second power. The electronic device generates a fourth current in response to the second magnetic field corresponding to the first power to charge the second battery; and / or, the electronic device protective case generates a first current in response to the second magnetic field corresponding to the first power and provides the first current to the electronic accessory to charge the first battery.

30. A hardware device, characterized in that, The device includes a memory and one or more processors; the memory is coupled to the processors; the memory stores computer program code, the computer program code including computer instructions, which, when executed by the processor, cause the hardware device to perform the method as described in any one of claims 6, 7, 16-21, 23, 24 and 27-29.

31. A computer-readable storage medium, characterized in that, Includes computer instructions that, when executed on a hardware device, cause the hardware device to perform the method as described in any one of claims 6, 7, 16-21, 23, 24, and 27-29.

32. A computer program product, characterized in that, When the computer program product is run on a hardware device, it causes the hardware device to perform the method as described in any one of claims 6, 7, 16-21, 23, 24, and 27-29.

Images