Wireless charging system, wireless charging device and related methods

Abstract

This application provides a wireless charging system, a wireless charging device, and related methods, applicable to the field of wireless charging technology. The wireless charging base includes a charging panel, a charging module, a temperature sensor, and a control unit. The charging panel supports a mobile device, forming a first space between the mobile device and one end of the charging panel. The temperature sensor detects the temperature of the first space and sends the temperature data to the control unit. The charging module wirelessly charges the mobile device via the charging panel. The control unit controls the operating state of the charging module based on the temperature data. By using a temperature sensor, the local temperature of the first space can be detected in real time. When a metallic foreign object generates abnormal heat due to induced current, the control unit can promptly adjust the charging module's state, effectively preventing safety risks caused by localized overheating.

Description

Technical Field

[0001] This application relates to the field of wireless charging technology, specifically to wireless charging systems, wireless charging devices, and related methods. Background Technology

[0002] With the continuous improvement of wireless charging power, some devices now support wireless charging up to 50W. In such a high-power charging environment, if there are foreign metal objects on the charging panel, such as the metal ring clips that users often attach to the back of their phone cases, these objects will heat up rapidly due to induced current, even reaching over 200°C in a short time, causing the charging panel to burn and seriously threatening charging safety.

[0003] Therefore, how to detect metallic foreign objects on wireless charging panels and effectively avoid safety risks such as overheating and burning caused by them is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a wireless charging system, a wireless charging device, and related methods, which can detect metallic foreign objects on the wireless charging panel and effectively avoid safety risks such as overheating and ablation caused by them.

[0005] In a first aspect, embodiments of this application provide a wireless charging system, comprising: a wireless charging base, the wireless charging base including a charging panel, a charging module, and a temperature sensor; a control unit electrically connected to the temperature sensor and the charging module; wherein, the charging panel is used to support a mobile device, and a first space is formed between the mobile device and one end of the charging panel; the temperature sensor is used to detect the temperature of the first space and send the temperature data to the control unit; the charging module is used to wirelessly charge the mobile device through the charging panel; and the control unit is used to control the working state of the charging module according to the temperature data.

[0006] In this embodiment, by deploying temperature sensors, the local temperature within the first space can be detected. When a foreign metal object (such as a metal ring buckle on the back of a phone case) generates abnormal heat due to induced current, the temperature sensors can promptly detect the temperature rise and transmit the temperature data to the control unit. The control unit can then quickly determine if there is a risk of overheating on the charging panel and adjust the operating state of the charging module accordingly, thereby effectively preventing safety accidents such as charging panel burn-out caused by localized overheating of foreign metal objects.

[0007] Currently, quality factor (Q-value) detection and power loss difference (Ploss) detection are commonly used to identify metallic foreign objects on charging panels and prevent high-temperature ablation accidents caused by the heat generated by these foreign objects. Q-value detection identifies metallic foreign objects by monitoring changes in the coil's quality factor, while Ploss detection identifies abnormal power consumption by comparing the power loss difference between the transmitter and receiver. Both methods are essentially based on energy loss characteristics to indirectly detect foreign objects, and suffer from insufficient sensitivity, inaccurate detection of small metal accessories, and susceptibility to decreased detection accuracy due to the phone's placement.

[0008] In contrast, this embodiment of the application uses a temperature sensor to detect the temperature of the first space formed between the mobile device and one end of the charging panel. Since this first space is the area where metallic foreign objects (such as metal ring clips on the back of a phone case, card holders, etc.) are most likely to appear during charging, detecting the temperature of this space allows the system to promptly and accurately detect the risk of localized overheating caused by metallic foreign objects, even when the size or position of the foreign object changes. Furthermore, the temperature data collected by the temperature sensor is transmitted to the control unit, which dynamically adjusts the operating state of the charging module accordingly, thereby effectively preventing safety accidents such as high-temperature ablation.

[0009] In some embodiments, the charging panel includes a support surface with a heat dissipation chamber, the support surface is used to support a mobile device, the mobile device blocks at least part of the heat dissipation chamber, and the first space includes the heat dissipation chamber.

[0010] In this embodiment, the charging panel includes a support surface for supporting a mobile device, and a heat dissipation chamber is provided on the support surface. When the mobile device is placed, it can block at least part of the heat dissipation chamber, making the heat dissipation chamber part of a first space. With this structural arrangement, the heat dissipation chamber, as a space that undertakes heat dissipation, also becomes an area where metal foreign objects may appear and cause local temperature rise during wireless charging. By detecting the temperature of the first space containing the heat dissipation chamber, the temperature change of this area can be effectively reflected, thereby realizing the detection of local abnormal temperature rise, regardless of the size and specific distribution location of the metal foreign object.

[0011] In some embodiments, the bearing surface is the upper surface of the charging panel; or, the upper surface of the charging panel is recessed to form a receiving cavity, and the bearing surface is the bottom surface of the receiving cavity.

[0012] In this embodiment of the application, by setting the bearing surface as the upper surface of the charging panel, or by recessing the upper surface of the charging panel to form a receiving cavity and setting the bearing surface as the bottom surface of the receiving cavity, the mobile device can be stably placed on the charging panel under different structural forms, thereby forming a first space between the mobile device and the charging panel.

[0013] In some embodiments, the temperature sensor may also be located within the housing chamber.

[0014] In this embodiment, the temperature sensor is disposed inside the receiving cavity. By placing the sensor directly inside the receiving cavity, real-time temperature detection within the cavity can be achieved, thereby detecting any potential temperature rise in the first space caused by metallic foreign objects.

[0015] In some embodiments, the charging panel is provided with a cooling channel, which is connected to a heat dissipation chamber, and a temperature sensor is disposed in the cooling channel; the detection end of the temperature sensor faces the heat dissipation chamber.

[0016] In this embodiment, the charging panel is provided with a cooling channel that communicates with the heat dissipation chamber. A temperature sensor is placed within the cooling channel, with its detection end facing the heat dissipation chamber. This design allows the temperature sensor to be closer to areas where metallic foreign objects may appear within the heat dissipation chamber, enabling direct and efficient sensing of temperature changes in the heat dissipation chamber. Even if the foreign object is located in different positions within the heat dissipation chamber, the temperature sensor can still detect abnormal temperature rises. Furthermore, the temperature sensor is concealed within the cooling channel, eliminating the need for separate openings or exposed components on the supporting surface, so users are unaware of its presence during daily use.

[0017] In some embodiments, the temperature sensor is located within a heat dissipation chamber.

[0018] In this embodiment, the temperature sensor is disposed inside the heat dissipation chamber. By placing the sensor directly inside the heat dissipation chamber, real-time temperature detection within the chamber can be achieved, thereby detecting any potential temperature rise caused by metallic foreign objects within the first space.

[0019] In some embodiments, the charging panel includes a support surface for supporting a mobile device, and a support member is provided between the mobile device and the support surface to form a first space between the mobile device and the support surface.

[0020] In this embodiment, the charging panel includes a support surface for supporting a mobile device, and a support member is disposed between the mobile device and the support surface to form a first space between them. This structural design effectively creates a gap between the mobile device and the support surface, providing space for the detection of metallic foreign objects. The position of the support member can be set on the support surface or the mobile device according to actual needs, which helps to improve the flexibility of system design.

[0021] In some embodiments, the wireless charging system further includes a wireless charging coil disposed on the charging panel, wherein the first space and the orthographic projection of the wireless charging coil on the charging panel at least partially overlap along the thickness direction of the charging panel.

[0022] In this embodiment, the wireless charging system includes a wireless charging coil disposed on a charging panel, and along the thickness direction of the charging panel, a first space at least partially overlaps with the orthographic projection of the wireless charging coil on the charging panel. Since metallic foreign objects are only likely to cause overheating problems when located in the wireless charging coil area, this structure, by making the first space overlap with the corresponding area of ​​the wireless charging coil, facilitates focused detection of critical areas at risk of overheating, thereby improving the detection sensitivity of metallic foreign objects in that area and reducing the risk of metallic foreign objects affecting wireless charging safety.

[0023] In some embodiments, the temperature sensor is an infrared sensor.

[0024] In this embodiment, the use of an infrared sensor enables non-contact temperature detection of the first space, eliminating the need for direct contact with the object being measured and facilitating real-time detection. This method not only improves the flexibility and reliability of temperature measurement but also reduces the requirements for equipment structure, thereby enhancing the overall safety and stability of the system.

[0025] In some embodiments, the control unit is specifically used to: determine, based on temperature data, whether the temperature of the first space exceeds a first threshold; and control the operating state of the charging module according to the determination result.

[0026] In this embodiment, since the first threshold is determined based on the normal operating temperature of the space under normal charging conditions (when there are no metal foreign objects), if the detected temperature exceeds the threshold, it can be considered that there are metal foreign objects in the area. This solution can promptly identify abnormal heating caused by metal foreign objects, thereby automatically adjusting the operating state of the charging module, effectively avoiding system overheating and safety risks caused by metal foreign objects, and thus improving the overall safety and stability of the system.

[0027] In some embodiments, the control unit is specifically configured to stop wireless charging when the determination result is that the temperature of the first space exceeds the first threshold; or to maintain wireless charging when the determination result is that the temperature of the first space does not exceed the first threshold.

[0028] In this embodiment, since the first threshold can effectively distinguish between normal charging and abnormal heating, the above control strategy can interrupt the charging process when abnormal heating is detected in the first space (such as due to a foreign metal object), thereby eliminating potential safety hazards in a timely manner and preventing overheating damage to the device. Meanwhile, in the absence of abnormalities, the system can maintain normal charging, ensuring the continuity of the charging process and thus improving the reliability of the charging system. In some embodiments, the control unit is also configured to control the charging power of the charging module, wherein the magnitude of the charging power is negatively correlated with the temperature of the first space.

[0029] In this embodiment, when the wireless charging operation is maintained, the charging power of the charging module is negatively correlated with the temperature of the first space; that is, the higher the space temperature, the lower the charging power. This dynamic adjustment mechanism ensures continuous charging while mitigating temperature rise and avoiding abnormally high temperatures, effectively reducing the risk of overheating. This approach helps improve system safety and stability, reduces charging interruptions caused by high temperatures, and enhances the user experience.

[0030] In some embodiments, the control unit is further configured to: when the temperature of the first space exceeds a first threshold, output a prompt message through a prompting unit, the prompt message being used to prompt the user that the charging panel temperature is too high.

[0031] In this embodiment, by setting a prompting unit, a prompt message is sent to the user when the temperature of the first space exceeds a first threshold, so that the user can be aware of the overheating of the charging panel in a timely manner, which helps the user to take corresponding measures in time, reduce the risk caused by overheating, and thus further improve the safety of the system.

[0032] In some embodiments, the notification message is also used to indicate the presence of a metallic foreign object on the charging panel.

[0033] In this embodiment, when the temperature of the first space exceeds a first threshold, it can be determined that a metallic foreign object is present. At this time, the prompt message not only indicates that the charging panel temperature is too high, but also simultaneously indicates the presence of a metallic foreign object. Through the above design, users can clearly understand the cause of the abnormal high temperature, making it easier to quickly locate and remove potential hazards such as metallic foreign objects, improving the pertinence and effectiveness of safety warnings, and further ensuring wireless charging safety and system reliability.

[0034] Secondly, embodiments of this application provide a wireless charging device, including a charging panel and a temperature sensor; the charging panel is used to carry a mobile device, and a first space is formed between the mobile device and one end of the charging panel; the temperature sensor is used to detect the temperature of the first space.

[0035] In some embodiments, the charging panel includes a support surface with a heat dissipation chamber, the support surface is used to support a mobile device, the mobile device blocks at least part of the heat dissipation chamber, and the first space includes the heat dissipation chamber.

[0036] In some embodiments, the bearing surface is the upper surface of the charging panel; or, the upper surface of the charging panel is recessed to form a receiving cavity, and the bearing surface is the bottom surface of the receiving cavity.

[0037] In some embodiments, the charging panel is provided with a cooling channel, which is connected to a heat dissipation chamber, and a temperature sensor is disposed in the cooling channel; the detection end of the temperature sensor faces the heat dissipation chamber.

[0038] In some embodiments, the wireless charging device further includes a wireless charging coil disposed on the charging panel, wherein the first space and the orthographic projection of the wireless charging coil on the charging panel at least partially overlap along the thickness direction of the charging panel.

[0039] In some embodiments, the temperature sensor is an infrared sensor.

[0040] Thirdly, embodiments of this application provide a wireless charging detection method applied to a wireless charging system, including a charging panel and a charging module; the charging panel is used to carry a mobile device, and a first space is formed between the mobile device and one end of the charging panel; the method includes: acquiring temperature data of the first space; and controlling the working state of the charging module based on the temperature data.

[0041] In some embodiments, the operating state of the charging module is controlled based on temperature data, including: when the determination result is that the temperature of the first space exceeds a first threshold, controlling the operating state to stop wireless charging; or, when the determination result is that the temperature of the first space does not exceed the first threshold, controlling the operating state to maintain wireless charging.

[0042] In some embodiments, controlling the operating state to maintain wireless charging includes: adjusting the charging power of the charging module, wherein the magnitude of the charging power is negatively correlated with the temperature of the first space.

[0043] In some embodiments, the method further includes: when the temperature of the first space exceeds a first threshold, outputting a prompt message through a prompting unit, the prompt message being used to prompt the user that the charging panel temperature is too high.

[0044] In some embodiments, the notification message is also used to indicate the presence of a metallic foreign object on the charging panel.

[0045] Fourthly, embodiments of this application provide a terminal that includes the wireless charging system described in any one of the first aspects, or the wireless charging device described in any one of the second aspects.

[0046] Fifthly, embodiments of this application provide an electronic device, which includes a processor and a memory. The memory stores a computer program, and the processor invokes the computer program to implement the method described in any one of the third aspects above.

[0047] Sixthly, embodiments of this application provide a computer-readable storage medium for storing a computer program (also referred to as code or instructions); when the computer program is run on a computer, the methods described in the third aspect and any possible implementation are implemented.

[0048] In a seventh aspect, embodiments of this application provide a computer program product, the computer program product comprising: a computer program (also referred to as code or instructions); and, when the computer program is run, causing a computer to perform the methods described in the third aspect and any of the possible implementations above.

[0049] The solutions provided in the second to seventh aspects above are used to implement or cooperate with the wireless charging system provided in the first aspect above. Therefore, they can achieve the same or corresponding beneficial effects as the embodiments in the first aspect, and will not be described in detail here. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0051] Figure 1 This is a schematic diagram of the system architecture of a smart device provided in an embodiment of this application.

[0052] Figure 2 This is a schematic diagram of the structure of a wireless charging device provided in an embodiment of this application.

[0053] Figure 3 This is a schematic diagram of another wireless charging device provided in an embodiment of this application.

[0054] Figure 4 This is a cross-sectional view of a wireless charging device provided in an embodiment of this application.

[0055] Figure 5 This is a schematic diagram of a receiving chamber provided in an embodiment of this application.

[0056] Figure 6 This is a schematic diagram of a cooling channel provided in an embodiment of this application.

[0057] Figure 7 This is a schematic diagram of a support member provided in an embodiment of this application.

[0058] Figure 8 This is a schematic diagram of another support member provided in an embodiment of this application.

[0059] Figure 9 This is a schematic diagram of a wireless charging coil provided in an embodiment of this application.

[0060] Figure 10 This is a schematic diagram of a wireless charging system provided in an embodiment of this application.

[0061] Figure 11 This is a flowchart illustrating a wireless charging detection method provided in an embodiment of this application.

[0062] Figure 12 This is a flowchart illustrating another wireless charging detection method provided in an embodiment of this application.

[0063] Figure 13 This is a schematic diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described below with reference to the accompanying drawings.

[0065] The terms "first" and "second," etc., used in the specification, claims, and drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0066] The term "embodiment" as used herein means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the various embodiments of this application are consistent and can be mutually referenced, and technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0067] It should be understood that in this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three or more, and "and / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0068] With the continuous improvement of in-vehicle wireless charging power, mainstream models now support wireless charging up to 50W. Under such high power conditions, if there are foreign metal objects on the charging panel, such as the metal ring clips that users often attach to the back of their phone cases, these objects will heat up rapidly due to the induced current, reaching temperatures of over 200°C in a short time. This can easily cause the charging panel to burn out, seriously threatening charging safety.

[0069] Currently, most in-vehicle wireless charging systems employ quality factor (Q-value) detection and power loss difference (Ploss) detection to identify metallic foreign objects on the charging panel and prevent high-temperature ablation accidents caused by the heat generated by these foreign objects. Q-value detection identifies metallic foreign objects by monitoring changes in the coil's quality factor, while Ploss detection identifies abnormal energy consumption by comparing the power loss difference between the transmitter and receiver. Both methods essentially detect foreign objects indirectly based on energy loss characteristics.

[0070] Taking in-vehicle wireless charging panels as an example, to accommodate different phone sizes, in-vehicle wireless charging panels are designed to be relatively wide, making coil positioning difficult to be precise. When the user places the device incorrectly, or when small metal parts are attached to the back of the phone case, these foreign objects have minimal impact on the Q value and Ploss parameters, making it difficult for the system to detect and respond in time. This causes the metal parts to heat up rapidly during charging, with temperatures potentially exceeding 200°C in a short period, far exceeding the panel's temperature resistance limit and posing a serious safety hazard.

[0071] In view of this, this application proposes to deploy temperature detection sensors in key areas of the charging panel, which can efficiently detect localized overheating caused by tiny metal foreign objects. Once an abnormal temperature is detected during charging, the system immediately takes protective measures to effectively prevent the risk of high-temperature ablation, thereby improving overall safety and user experience.

[0072] The system architecture of the smart devices to which this application can be applied is described below. Smart devices can include, but are not limited to, vehicles, smart robots, smart logistics vehicles, smart furniture, and smart charging facilities. The following explanation uses a vehicle as an example, focusing primarily on the architecture of an in-vehicle wireless charging system. Please refer to [link / reference]. Figure 1 The vehicle includes a controller 101, a power management module 102, a power supply 103, and a wireless charging module 104. In this embodiment, a temperature sensor is provided in the wireless charging module 104 to detect the temperature of foreign objects on the charging panel of the wireless charging module 104. A detailed description follows: The controller 101 is a device with control and / or computing capabilities, used to realize the operation management and intelligent safety protection of the vehicle-mounted wireless charging system. In this embodiment, the controller 101, as the core of the system, can receive and process input signals from the temperature sensor of the wireless charging module 104, and based on the temperature detection results, can dynamically adjust and safely control various functional states of the wireless charging module 104 (such as power output, start / stop status, etc.). Through the above coordination, the controller 101 can realize real-time monitoring and active intervention of the risk of local overheating caused by foreign metal objects, etc., to ensure the safety and reliability of system operation.

[0073] Optionally, the controller 101 may include a hardware module with computing capabilities and / or a software module with computing capabilities. Examples of hardware and software implementations are described below.

[0074] As an example of hardware implementation, controller 101 may include at least one processor, which is a module with processing capabilities. In one implementation, the processor includes circuitry capable of reading and executing instructions, such as an arithmetic logic unit (ALU), processor core, central processing unit (CPU), microprocessor, microcontroller unit (MCU), graphics processing unit (GPU), or digital signal processor (DSP). In another implementation, the processor implements a certain function through the logical relationships of hardware circuitry. These logical relationships are either fixed or reconfigurable. For example, the processor may be a hardware circuitry implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as a field-programmable gate array (FPGA). In reconfigurable hardware circuitry, the process of the processor loading a configuration document and configuring the hardware circuitry can be understood as the process of the processor loading instructions to implement the corresponding function. In addition, a processor can also be a hardware circuit designed for artificial intelligence, which can be understood as a type of ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0075] As an example of software implementation, controller 101 may include software functional units. As another example of a software functional unit, controller 101 includes one or more of the following: an executable computer program, computer code, or computer instructions, where "executable" means able to run on a processor or computing instance. As yet another example of a software functional unit, controller 101 includes a computing instance, including virtual machines or containers. A virtual machine is a computer system with complete hardware system functionality simulated by software, running in an isolated environment. A container is an isolated environment obtained by packaging applications and application dependencies.

[0076] The power management module 102 is responsible for the power distribution, transmission, and safety management of each unit within the vehicle-mounted wireless charging system. The power management module 102 receives energy from the power supply 103 and, in conjunction with the scheduling of the controller 101 and the power demand of the wireless charging module 104, intelligently allocates the required voltage and power. In this embodiment, the controller 101 determines whether there is an abnormal temperature (such as overheating) problem on the charging panel of the wireless charging module 104 based on temperature data collected by a temperature sensor. If an abnormal temperature is found, the power management module 102 can proactively adjust the power supply to reduce safety risks.

[0077] Power supply 103 provides basic power support for the vehicle-mounted wireless charging system and its associated submodules. In typical applications, power supply 103 can be a high-voltage power battery onboard to the vehicle, a low-voltage power system (such as a 12V / 24V battery), or a dedicated power module for the wireless charging system. The energy output from power supply 103 is first supplied to power management module 102, which distributes, converts, and manages the energy to provide continuous and stable power to load modules such as wireless charging module 104, meeting the dynamic current and voltage requirements of the wireless charging system. Optionally, power supply 103 can also work in conjunction with the vehicle's energy management system to achieve advanced functions such as energy recovery and real-time power distribution, thereby further improving the overall vehicle's energy efficiency and safety.

[0078] The wireless charging module 104 is the core functional unit of the in-vehicle wireless charging system, primarily responsible for spatial energy transfer, enabling contactless and efficient charging from the vehicle side to the mobile device side (such as a smartphone). The wireless charging module 104 may include a charging panel, a transmitter power conversion circuit, a transmitter coil group, a magnetic shielding structure, a resonant compensation unit, and other structures. In this embodiment, the wireless charging module 104 also includes a temperature sensor, which can be positioned near the charging panel close to the wireless charging module 104. The specific layout of the temperature sensor will be described in detail later and will not be elaborated here. The temperature sensor can accurately detect real-time temperature changes in specific areas of the charging panel. During charging, the temperature sensor can transmit temperature data to the controller 101 in real time for judgment. If abnormal temperature or localized overheating is detected, such as abnormal temperature rise caused by microscopic metal foreign objects, the controller 101 can take timely active protection measures, such as reducing output power, pausing charging, and activating alarms. During charging, the wireless charging module 104 dynamically adjusts output parameters (power, frequency, etc.) according to the instructions of the controller 101 and is compatible with various mobile devices. In this embodiment of the application, in order to meet the safety requirements of high power output, the wireless charging module 104 can also use a temperature sensor to detect the temperature of foreign objects on the charging panel in real time.

[0079] It should be noted that the above structural diagram is only one possible implementation of an embodiment of this application. In practical applications, the controller 101, power management module 102, and wireless charging module 104 can be integrated on the same hardware platform, or set up as multiple independent units according to design requirements. In addition, the system can be expanded with more functional modules according to vehicle model or customized requirements, such as multi-channel charging transmitters, communication modules, etc.

[0080] The wireless charging device provided in this application is described below with reference to the accompanying drawings.

[0081] For example, such as Figure 2 As shown, Figure 2 This is a schematic diagram of a wireless charging device provided in an embodiment of this application. The wireless charging device provided in this embodiment of the application includes at least a charging panel 201 and a temperature sensor 202.

[0082] It should be noted that, Figure 2 The structure shown is merely an exemplary structure for illustrating this application, and the specific structure of the wireless charging device in this application is not limited to this one. Figure 2 The form shown can be modified or replaced accordingly without departing from the technology of this application.

[0083] The charging panel 201 is used to support the mobile device 301. The mobile device 301 can be, but is not limited to, smartphones, tablets, wearable devices, and other terminal devices that support wireless charging; no specific restrictions are imposed here.

[0084] In this embodiment, a first space 203 is formed between the mobile device 301 and one end of the charging panel 201.

[0085] It is understandable that when the mobile device 301 is placed on the charging panel 201, due to the structural design of the charging panel 201 or the mobile device 301, the mobile device 301 is not completely attached to the charging panel 201, thus forming a certain gap between the mobile device 301 and the charging panel 201, which constitutes the first space 203.

[0086] Optionally, one end of the charging panel 201 can be one of the side, bottom, or top of the charging panel 201, and the specific form is not limited. Figure 2 In the example shown, the top of the charging panel 201 is taken as one end of the charging panel 201.

[0087] Temperature sensor 202 is used to detect the temperature of the first space 203.

[0088] Specifically, by detecting the temperature inside the first space 203, the heat change of the first space 203 between the mobile device 301 and the charging panel 201 during the wireless charging process can be reflected in real time, so that the wireless charging process can be controlled accordingly when the first space 203 experiences abnormal temperature rise.

[0089] In some embodiments, such as Figure 3 As shown, the charging panel 201 includes a support surface 2011. The support surface 2011 supports the mobile device 301. A heat dissipation chamber 204 is provided on the support surface 2011. The heat dissipation chamber 204 can be a cavity structure recessed in the support surface 2011 to accommodate air and form a heat dissipation space. When the mobile device 301 is placed on the support surface 2011, the mobile device 301 blocks at least part of the heat dissipation chamber 204, so that a relatively closed or semi-closed space is formed between the heat dissipation chamber 204 and the mobile device 301. In this case, the first space 203 includes the heat dissipation chamber 204.

[0090] Understandably, the above structural design allows the heat dissipation chamber 204 to function as a heat dissipation area while also becoming a region where metal foreign objects may appear and cause localized temperature rises during wireless charging. By detecting the temperature of the first space 203 containing the heat dissipation chamber 204, the temperature changes in this area can be effectively reflected, thereby enabling the detection of localized abnormal temperature rises, regardless of the size or specific location of the metal foreign object.

[0091] It should be noted that the heat dissipation chamber 204 is located in the central region of the supporting surface 2011, while the left, right, and upper regions of the supporting surface 2011 still retain the support structure for contact with the mobile device 301. When the mobile device 301 is placed on the supporting surface 2011, the mobile device 301 mainly contacts the left and right edges and the upper region of the supporting surface 2011, while the heat dissipation chamber 204 located in the center does not directly contact the mobile device 301, thus forming a cavity structure inside the heat dissipation chamber 204. Under this structure, a relatively closed or semi-closed space is formed between the mobile device 301 and the heat dissipation chamber 204, so that the interior of the heat dissipation chamber 204 naturally constitutes part of the first space 203.

[0092] In some embodiments, the bearing surface 2011 is the upper surface of the charging panel 201.

[0093] Specifically, such as Figure 4 As shown, the charging panel 201 includes an upper surface and a lower surface. The upper surface serves as a support surface 2011, directly contacting and supporting the mobile device 301. A heat dissipation chamber 204 is recessed in the support surface 2011, formed in the central region of the support surface 2011, to accommodate air and create a heat dissipation space. When the mobile device 301 is placed on the upper surface of the charging panel 201, the mobile device 301 mainly contacts the edge and upper regions of the support surface 2011, while the central heat dissipation chamber 204 does not directly contact the mobile device 301, creating a relatively enclosed or semi-enclosed space between the heat dissipation chamber 204 and the mobile device 301. In this structure, the space formed between the mobile device 301 and the heat dissipation chamber 204 constitutes a first space 203.

[0094] Optional, such as Figure 4 As shown, the opening of the heat dissipation chamber 204 is connected to the upper surface of the charging panel 201.

[0095] Optional, such as Figure 4 As shown, the upper surface of the charging panel 201 is also provided with a blocking member 207. The blocking member 207 is used to limit the mobile device 301 when it is placed on the charging panel 201, so as to prevent the mobile device 301 from sliding or shifting.

[0096] In some embodiments, such as Figure 5 As shown, the upper surface of the charging panel 201 is recessed with a receiving chamber 206, and the bearing surface 2011 is the bottom surface of the receiving chamber 206.

[0097] Specifically, the upper surface of the charging panel 201 is recessed downwards to form a receiving chamber 206, and the supporting surface 2011 is the bottom surface of the receiving chamber 206, used to support the mobile device 301. A heat dissipation chamber 204 is also provided inside the receiving chamber 206, located below the supporting surface 2011, used to accommodate air and form a heat dissipation space. When the mobile device 301 is placed on the supporting surface 2011, the mobile device 301 is supported by the bottom surface of the receiving chamber 206, and its circumferential direction is limited by the side walls of the receiving chamber 206, keeping the position of the mobile device 301 relative to the charging panel 201 stable. Simultaneously, the heat dissipation chamber 204 is located below the supporting surface 2011, separated from the mobile device 301 by the supporting surface 2011, forming a first space in the corresponding area of ​​the heat dissipation chamber 204.

[0098] Optionally, the upper surface of the charging panel 201 may have a recessed receiving chamber 206, and the temperature sensor may also be disposed inside the receiving chamber 206. In this embodiment, the charging panel 201 may also have a heat dissipation chamber 204, or it may not have a heat dissipation chamber 204, and no specific limitation is made here.

[0099] In some embodiments, such as Figure 3 As shown, the charging panel 201 has a cooling channel 205, which is connected to the heat dissipation chamber 204. A temperature sensor 202 is disposed within the cooling channel 205. For example... Figure 2 As shown, the sensing end of the temperature sensor 202 faces the heat dissipation chamber 204. The cooling channel 205 and the heat dissipation chamber 204 are connected along the direction of the sensing end.

[0100] Specifically, the cooling channel 205 is connected to the heat dissipation chamber 204, allowing air to flow between them, thereby assisting in the release of heat within the heat dissipation chamber 204. A temperature sensor 202 is disposed within the cooling channel 205, with its sensing end facing the heat dissipation chamber 204. This arrangement allows the temperature sensor 202 to directly sense temperature changes within the heat dissipation chamber 204, thus effectively detecting the thermal state within the first space 203.

[0101] Understandably, the above design allows the temperature sensor 202 to be positioned closer to areas where metallic foreign objects might appear within the first space 203, enabling it to detect temperature changes in the heat dissipation chamber 204. Even if the metallic foreign object is located in different positions within the heat dissipation chamber 204, the temperature sensor 202 can still detect abnormal temperature rise data. Furthermore, the temperature sensor 202 is concealed within the cooling channel 205, eliminating the need for separate openings or exposed components on the supporting surface 2011. Users do not need to be aware of the sensor's presence during daily use, increasing the structural compactness of the wireless charging device.

[0102] Optionally, the air outlet of the cooling channel 205 is located near the heat dissipation chamber 204, so that the air in the cooling channel 205 passes through the area of ​​the heat dissipation chamber 204 when it is discharged. For example, the cooling channel 205 may have multiple air outlets, which are arranged sequentially at intervals along a first direction perpendicular to the detection end direction. Alternatively, the cooling channel 205 may have only one air outlet.

[0103] Optionally, the air outlet of the cooling channel 205 is connected to the cooling fan, so that the airflow generated by the cooling fan is discharged through the cooling channel 205, thereby assisting in the release of heat in the heat dissipation chamber 204.

[0104] Optional, such as Figure 6 As shown, the cooling channel 205 includes a first part 2051 and a second part 2052. The first part 2051 communicates with the heat dissipation chamber 204 and extends along the interior of the charging panel 201. The second part 2052 communicates with the first part 2051 and extends in a different direction than the first part 2051, making the cooling channel 205 as a whole have a bent or directional structure. The first part 2051 and the second part 2052 are interconnected and together form a complete cooling channel 205.

[0105] Optionally, the charging panel 201 includes an upper surface and a lower surface, which are arranged opposite to each other. Along the reverse direction of the detection end of the temperature sensor 202, the distance between the upper and lower surfaces gradually increases, giving the charging panel 201 an overall structure that is thinner at one end and thicker at the other. The temperature sensor 202 is disposed between the upper and lower surfaces, located at the thicker end. This structural arrangement allows for sufficient installation space for the temperature sensor 202 in the thicker area of ​​the charging panel 201, facilitating its installation, fixation, and connection to internal circuitry.

[0106] In other embodiments, the temperature sensor 202 is disposed within the heat dissipation chamber 204. Exemplarily, the temperature sensor 202 may be disposed on the bottom wall surface of the heat dissipation chamber 204.

[0107] Specifically, by placing the temperature sensor 202 inside the heat dissipation chamber 204, the temperature inside the heat dissipation chamber 204 can be detected in real time and directly, thereby more timely sensing the local temperature rise caused by the presence of metallic foreign objects in the first space 203.

[0108] In some embodiments, the charging panel 201 includes a support surface 2011 for supporting the mobile device 301. A support member 208 is provided between the mobile device 301 and the support surface 2011 to form a first space 203 between the mobile device 301 and the support surface 2011.

[0109] Specifically, by providing a support member 208 between the mobile device 301 and the supporting surface 2011, a first space 203 is formed between the mobile device 301 and the supporting surface 2011 when the mobile device 301 is placed on the charging panel 201.

[0110] Optionally, the support member 208 is disposed on the bearing surface 2011, and the support member 208 can be a protruding structure, a support pad or a support column, etc.

[0111] Example 1, such as Figure 7 As shown, a heat dissipation chamber 204 is provided on the supporting surface 2011, and a support member 208 is also provided on the supporting surface 2011. The support member 208 is used to support the mobile device 301 when it is placed on the supporting surface 2011, so that a preset distance is maintained between the mobile device 301 and the supporting surface 2011. In this structure, when the mobile device 301 is placed on the supporting surface 2011, the heat dissipation chamber 204 constitutes part of the first space 203; at the same time, the support member 208 raises the mobile device 301 as a whole, so that the gap space formed between the mobile device 301 and the supporting surface 2011 is connected to the heat dissipation chamber 204 or together constitutes the first space 203. Compared with the space formed by the heat dissipation chamber 204 alone, the effective volume of the first space 203 is increased and the spatial shape is more stable, which is more conducive to reflecting the temperature changes within the first space 203.

[0112] Example 2, such as Figure 8 As shown, a support member 208 is provided on the supporting surface 2011, and the supporting surface 2011 does not have a heat dissipation chamber (or does not form a recessed cavity structure). The support member 208 is used to contact and support the mobile device 301 when it is placed on the supporting surface 2011, so that a preset distance is maintained between the mobile device 301 and the supporting surface 2011, thereby forming a first space 203 between them. In this example, the temperature sensor 202 can be provided in the side area of ​​the charging panel 201, so that the temperature sensor 202 can sense the temperature change in the first space 203 from the side.

[0113] Optionally, the support member 208 is disposed on the mobile device 301. The support member 208 may be a partial protrusion structure or additional structure disposed on the back of the mobile device 301, for contacting the support surface 2011 and forming support when the mobile device 301 is placed on the support surface 2011.

[0114] Optionally, the partial protrusion structure or additional structure may include, but is not limited to, the camera module area on the back of the mobile device 301, the protruding part on the protective shell, or other structures protruding from the back of the mobile device 301.

[0115] In some embodiments, such as Figure 9 As shown, the wireless charging device also includes a wireless charging coil 401, which is disposed in the charging panel 201. Along the thickness direction of the charging panel 201, the first space 203 and the orthographic projection of the wireless charging coil 401 on the charging panel 201 at least partially overlap.

[0116] It is understandable that metallic foreign objects are more likely to generate induced current and cause significant heat generation under the influence of an alternating magnetic field when they are close to the wireless charging coil area. Therefore, by ensuring that the first space 203 and the area where the wireless charging coil 401 is located at least partially overlap in the orthographic projection direction, temperature detection can be focused on the area with the highest risk of overheating. Through the above structural design, the overlapping of the corresponding areas of the first space 203 and the wireless charging coil 401 facilitates targeted detection of critical areas with overheating risk, thereby improving the detection sensitivity of metallic foreign objects in these areas and reducing the risk of metallic foreign objects affecting wireless charging safety.

[0117] In some embodiments, the optical axis of the temperature sensor 202 coincides with the center of the projection area of ​​the wireless charging coil 401 on the charging panel 201.

[0118] It is understandable that the projection area of ​​the wireless charging coil 401 on the charging panel 201 is a region where energy coupling is relatively concentrated during wireless charging. The presence of metallic foreign objects in this area can easily lead to localized temperature increases. By setting the optical axis of the temperature sensor 202 to coincide with the center of the projection area, the detection area of ​​the temperature sensor 202 corresponds to the region within the first space 203 where higher temperatures may occur. This facilitates the acquisition of temperature data characterizing the highest temperature within the first space 203, improving the reliability of detecting abnormal heating.

[0119] In some embodiments, the temperature sensor 202 is an infrared sensor.

[0120] Specifically, the temperature sensor 202 is an infrared sensor, which enables non-contact detection of the temperature of the first space 203.

[0121] Optionally, the infrared sensor can be a single-point infrared sensor or a matrix infrared sensor; this application embodiment does not limit this.

[0122] It is understandable that when the infrared sensor is a single-point infrared sensor, the infrared sensor is used to perform temperature detection on a preset area within the first space 203 to obtain temperature data that characterizes the highest temperature within the first space 203; when the infrared sensor is a matrix infrared sensor, the infrared sensor is used to obtain temperature distribution information of multiple areas within the first space 203 and determine the highest temperature within the first space 203 based on the temperature distribution information.

[0123] Through the above embodiments, the use of infrared sensors enables non-contact temperature detection of the first space 203, eliminating the need for direct contact with the object being measured and facilitating real-time detection. This method not only improves the flexibility and reliability of temperature measurement but also reduces the requirements for equipment structure, thereby enhancing the overall safety and stability of the system.

[0124] In some embodiments, the field of view angle of the temperature sensor 202 is greater than or equal to 0 degrees and less than or equal to 90 degrees.

[0125] It is understandable that setting the field of view angle of the temperature sensor 202 within the range of 0 to 90 degrees allows the temperature sensor 202 to cover the area where the first space 203 is located, while avoiding the introduction of temperature information from areas unrelated to the first space 203 due to an excessively large field of view angle. This helps to improve the targeting of temperature changes detection within the first space 203.

[0126] Based on the aforementioned wireless charging device, this application also provides a wireless charging system.

[0127] like Figure 10 As shown, the wireless charging system includes at least a wireless charging base and a control unit 601. The wireless charging base includes a charging panel 201, a charging module 501, a temperature sensor 202, and a control unit 601. The charging module 501 and the temperature sensor 202 are electrically connected to the control unit 601.

[0128] The charging panel 201 is used to support the mobile device 301. When the mobile device 301 is placed on the charging panel 201, a first space 203 is formed between the mobile device 301 and one end of the charging panel 201.

[0129] Temperature sensor 202 is used to detect the temperature of the first space 203 and send the detected temperature data to control unit 601.

[0130] The charging module 501 is used to provide wireless charging energy to the mobile device 301 via the charging panel 201.

[0131] The control unit 601 is used to receive temperature data sent by the temperature sensor 202 and control the working state of the charging module 501 based on the temperature data.

[0132] The working state of the charging module 501 is used to characterize the energy output state of the charging module 501 during the wireless charging process.

[0133] Optionally, the operating states include at least stopping wireless charging and maintaining wireless charging.

[0134] In this embodiment, a temperature sensor 202 is installed in the wireless charging base to detect local temperature changes within the first space 203. The first space 203 is an area where foreign metal objects (such as metal ring clips on the back of phone cases, card holders, etc.) are prone to occur and cause localized abnormal heating during wireless charging. When a foreign metal object generates abnormal heat due to induced current during wireless charging, the temperature sensor 202 can promptly detect the temperature rise within the first space 203 and send the temperature data to the control unit 601. The control unit 601 then determines whether there is an overheating risk and adjusts the operating state of the charging module 501 accordingly, effectively preventing safety accidents such as charging panel burn-out caused by localized overheating of foreign metal objects.

[0135] Currently, quality factor (Q-value) detection and power loss difference (Ploss) detection are commonly used to identify metallic foreign objects on charging panels and prevent high-temperature ablation accidents caused by the heat generated by these foreign objects. Q-value detection identifies metallic foreign objects by monitoring changes in the coil's quality factor, while Ploss detection identifies abnormal power consumption by comparing the power loss difference between the transmitter and receiver. Both methods are essentially based on energy loss characteristics to indirectly detect foreign objects, and suffer from insufficient sensitivity, inaccurate detection of small metal accessories, and susceptibility to decreased detection accuracy due to the phone's placement.

[0136] In contrast, the embodiments of this application directly detect the temperature of the first space 203, which can still timely and accurately identify the risk of local abnormal heating caused by the metal foreign object even when the volume or position of the metal foreign object changes, thereby improving the reliability of metal foreign object detection.

[0137] In some embodiments, the control unit 601 is specifically used to: determine whether the temperature of the first space exceeds a first threshold based on temperature data; and control the working state of the charging module 501 according to the determination result.

[0138] The first threshold is the normal operating temperature threshold determined under normal wireless charging conditions and when there are no metal foreign objects in the first space 203.

[0139] Understandably, when the mobile device 301 is wirelessly charging normally, the temperature within the first space 203 is usually within a relatively stable range. For example, during normal wireless charging, the temperature within the first space 203 generally does not exceed approximately 70°C. When a metallic foreign object is present in the first space 203, the temperature of the corresponding area will be significantly higher than the temperature under normal wireless charging conditions because the metallic foreign object easily generates induced current and causes localized concentrated heat during wireless charging. For example, in the presence of a metallic foreign object (such as a metal ring buckle, metal card holder, etc.), the local temperature of the metallic foreign object can rise to over 100°C.

[0140] Based on the aforementioned temperature differences, by setting the first threshold to a temperature threshold based on the normal wireless charging state, when the temperature of the first space 203 exceeds the first threshold, it is possible to effectively distinguish between the normal wireless charging process and the abnormal heating caused by metal foreign objects, thereby improving the accuracy and reliability of metal foreign object identification.

[0141] Optionally, the first threshold can be set to be slightly higher than the operating temperature threshold under normal wireless charging conditions, so as to ensure that abnormal heating of metal foreign objects can be identified, while avoiding the risk of misjudgment when the mobile device 301 is heating up normally or the ambient temperature is high.

[0142] In some embodiments, when the determination result is that the temperature of the first space 203 exceeds the first threshold, the control unit controls the working state to stop wireless charging; or, when the determination result is that the temperature of the first space 203 does not exceed the first threshold, the control unit controls the working state to maintain wireless charging.

[0143] Specifically, since the first threshold can effectively distinguish between normal charging and abnormal heating, the above control strategy can interrupt the charging process when abnormal temperature rise is detected in the first space 203 (such as due to a metal foreign object), thereby eliminating potential safety hazards in time and preventing equipment overheating damage. Meanwhile, in the absence of abnormalities, the system can maintain normal charging, ensuring the continuity of the charging process and thus improving the reliability of the charging system. In some embodiments, the control unit is also used to regulate the charging power of the charging module, the magnitude of which is negatively correlated with the temperature of the first space.

[0144] Specifically, when maintaining wireless charging, the charging power of the charging module 501 is negatively correlated with the temperature of the first space 203; that is, the higher the space temperature, the lower the charging power. This dynamic adjustment mechanism ensures continuous charging while slowing down temperature rise and avoiding abnormally high temperatures, effectively reducing the risk of overheating. This approach helps improve system safety and stability, reduces charging interruptions due to high temperatures, and enhances the user experience.

[0145] Optionally, the charging power can be adjusted in a graded manner, that is, the temperature of the first space 203 is divided into multiple temperature ranges, and different temperature ranges correspond to different charging power levels; or it can be adjusted continuously, that is, the charging power is continuously adjusted according to the real-time temperature change of the first space 203. This application embodiment does not limit this.

[0146] In some embodiments, the wireless charging system further includes a prompting unit and a control unit 601, which are also configured to: when the temperature of the first space 203 exceeds a first threshold, output a prompting message through the prompting unit, the prompting message being used to prompt the user that the charging panel temperature is too high.

[0147] Specifically, by setting up a prompting unit, a prompt message is sent to the user when the temperature of the first space 203 exceeds the first threshold, so that the user can be aware of the overheating of the charging panel in a timely manner, which helps the user to take corresponding measures in time, reduce the risk caused by overheating, and thus further improve the safety of the system.

[0148] Optionally, the prompting unit is electrically connected to the control unit 601. After the control unit 601 determines that the temperature of the first space 203 exceeds the first threshold, it sends the abnormal information to the prompting unit, which then outputs the corresponding prompt information to the user.

[0149] Optionally, the output method of the prompt information includes, but is not limited to, at least one of display prompts, sound prompts, and vibration prompts.

[0150] For example, the prompting unit may display text or graphic prompts on a screen, and / or output prompt sounds through a speaker, and / or output vibration prompts through a vibration component to alert the user to an abnormal situation in the first space 203.

[0151] In some embodiments, when the temperature of the first space 203 exceeds a first threshold, a metallic foreign object is present in the first space, and the prompt message is also used to indicate that a metallic foreign object is present on the charging panel.

[0152] Specifically, when the temperature of the first space 203 exceeds the first threshold, it can be determined that a metallic foreign object is present. At this time, the prompt message will not only indicate that the charging panel temperature is too high, but also simultaneously indicate the presence of a metallic foreign object. Through the above design, users can clearly understand the cause of the abnormal high temperature, which facilitates the quick location and removal of potential hazards such as metallic foreign objects, improves the pertinence and effectiveness of safety warnings, and further ensures the safety of wireless charging and the reliability of the system.

[0153] In some embodiments, wireless charging of the mobile device 301 begins when the wireless charging coil on the wireless charging panel 201 aligns with the wireless charging coil on the mobile device 301 and establishes a wireless power transfer relationship. Simultaneously, the control unit activates the temperature sensor 202 to detect the temperature of the first space 203.

[0154] like Figure 11 As shown in the figure, this application provides a wireless charging detection method applied to a wireless charging system, including a charging panel and a charging module; the charging panel is used to support a mobile device, and a first space is formed between the mobile device and one end of the charging panel. Detailed description follows: S801, the wireless charging system acquires temperature data of the first space.

[0155] The S802 wireless charging system controls the operating status of the charging module based on temperature data.

[0156] In some embodiments, when the determination result is that the temperature of the first space exceeds the first threshold, the working state is to stop wireless charging; or, when the determination result is that the temperature of the first space does not exceed the first threshold, the working state is to maintain wireless charging.

[0157] For example, such as Figure 12 As shown, after wireless charging begins, the control unit first activates the temperature sensor to detect the temperature of the first space. When the temperature of the first space exceeds a first threshold, the control unit controls the charging module to stop wireless charging and further triggers the prompt unit to output a prompt message to the user, indicating that there is an overheating risk in the current wireless charging area, and then ends the charging process. When the temperature of the first space does not exceed the first threshold, it is determined that the current charging state is safe, and the system enters the working state of maintaining wireless charging.

[0158] In some embodiments, when the operating state is to maintain wireless charging, the charging power of the charging module is negatively correlated with the temperature of the first space.

[0159] Optional, for example Figure 12 As shown, while maintaining wireless charging, the control unit further determines whether the temperature of the first space 203 exceeds a second threshold. When the temperature of the first space 203 exceeds the second threshold but does not exceed the first threshold, the control unit controls the charging module 501 to reduce the charging power to slow down the temperature rise of the first space 203; when the temperature of the first space 203 does not exceed the second threshold, the control unit controls the charging module 501 to maintain the current charging power and continue wireless charging.

[0160] In some embodiments, the wireless charging system further includes a prompting unit, and the method further includes: when the temperature of the first space exceeds a first threshold, controlling the prompting unit to output a prompting message, the prompting message being used to prompt the user that the charging panel temperature is too high.

[0161] In some embodiments, when the temperature of the first space exceeds a first threshold, a metallic foreign object is present in the first space, and the prompt message is also used to indicate that a metallic foreign object is present on the charging panel.

[0162] This application provides a terminal, including the above-described... Figure 10 The wireless charging system shown in any of the above, or including the wireless charging system described above. Figure 2 Wireless charging device as shown in any of the above.

[0163] Optionally, the terminal can be a means of transportation in a broad sense, such as a car, truck, aircraft, drone, slow transport vehicle, spacecraft, or ship, or any other possible means of transportation used in any possible scenario. This application embodiment does not limit this.

[0164] This application provides an electronic device, such as... Figure 13 As shown, the electronic device 110 includes a processor 1101 and an interface 1102. The number of processors 1101 can be one or more, and the number of interfaces 1102 can be multiple. It should be noted that the functions of the processor 1101 and the interface 1102 can be implemented through hardware design, software design, or a combination of both; no restrictions are placed here.

[0165] Optionally, the electronic device 110 may also include a memory 1103 for storing necessary program instructions and data.

[0166] In this application, processor 1101 can be used to call the implementation program of the wireless charging detection method in a wireless charging device provided by one or more embodiments of this application from memory 1103, and execute the instructions included in the program. Interface 1102 can be used to output the execution result of processor 1101. In this application, interface 1102 can be specifically used to output various messages or information of processor 1101.

[0167] For the wireless charging detection method provided in one or more embodiments of this application, please refer to the foregoing. Figure 11 The various embodiments shown are not described in detail here.

[0168] The processor in this application embodiment can be a central processing unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0169] The memory in this application embodiment is used to provide storage space, in which data such as operating system and computer programs can be stored. The memory includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM).

[0170] According to the method provided in the embodiments of this application, the embodiments of this application also provide a computer-readable storage medium storing a computer program. When the computer program is run on one or more processors, it can implement the above-mentioned... Figure 11 The method shown.

[0171] According to the method provided in the embodiments of this application, the embodiments of this application also provide a computer program product, which includes a computer program. When the computer program runs on a processor, it can achieve the above-mentioned... Figure 11 The method shown.

[0172] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of 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 system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0173] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0174] In addition, 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.

[0175] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the contributing part, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) 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.

[0176] 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 that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A wireless charging system, characterized in that, include: A wireless charging dock, comprising a charging panel, a charging module, and a temperature sensor; The control unit is electrically connected to the temperature sensor and the charging module; wherein, The charging panel is used to support the mobile device, and a first space is formed between the mobile device and one end of the charging panel. The temperature sensor is used to detect the temperature of the first space and send the temperature data to the control unit; The charging module is used to wirelessly charge the mobile device through the charging panel; The control unit is used to control the operating state of the charging module based on the temperature data.

2. The wireless charging system according to claim 1, characterized in that, The charging panel includes a support surface, the support surface is provided with a heat dissipation chamber, the support surface is used to support the mobile device, the mobile device blocks at least part of the heat dissipation chamber, and the first space includes the heat dissipation chamber.

3. The wireless charging system according to claim 1 or 2, characterized in that, The bearing surface is the upper surface of the charging panel; or, The upper surface of the charging panel has a recessed cavity, and the bearing surface is the bottom surface of the cavity.

4. The wireless charging system according to claim 2 or 3, characterized in that, The charging panel is provided with a cooling channel, which is connected to the heat dissipation chamber. The temperature sensor is located in the cooling channel, and the detection end of the temperature sensor faces the heat dissipation chamber.

5. The wireless charging system according to claim 2, characterized in that, The temperature sensor is located inside the heat dissipation chamber.

6. The wireless charging system according to any one of claims 1-5, characterized in that, The charging panel includes a support surface for supporting a mobile device, and a support member is provided between the mobile device and the support surface to form the first space between the mobile device and the support surface.

7. The wireless charging system according to any one of claims 1-6, characterized in that, The wireless charging system further includes a wireless charging coil disposed on the charging panel. Along the thickness direction of the charging panel, the first space and the orthographic projection of the wireless charging coil on the charging panel at least partially overlap.

8. The wireless charging system according to any one of claims 1-7, characterized in that, The temperature sensor is an infrared sensor.

9. The wireless charging system according to claims 1-8, characterized in that, The control unit is specifically used for: When the determination result indicates that the temperature of the first space exceeds the first threshold, the operating state is controlled to stop wireless charging; or... When the determination result is that the temperature of the first space does not exceed the first threshold, the working state is controlled to maintain wireless charging.

10. The wireless charging system according to claim 9, characterized in that, The control unit is also used for: The charging power of the charging module is adjusted, and the magnitude of the charging power is negatively correlated with the temperature of the first space.

11. The wireless charging system according to claim 9 or 10, characterized in that, The control unit is also used for: When the temperature of the first space exceeds the first threshold, a prompt message is output through the prompt unit, which is used to prompt the user that the charging panel temperature is too high.

12. The wireless charging system according to claim 11, characterized in that, The notification message is also used to indicate the presence of a metallic foreign object on the charging panel.

13. A wireless charging device, characterized in that, Includes charging panel and temperature sensor; The charging panel is used to support the mobile device, and a first space is formed between the mobile device and one end of the charging panel. The temperature sensor is used to detect the temperature of the first space.

14. The apparatus according to claim 13, characterized in that, The charging panel includes a support surface, the support surface is provided with a heat dissipation chamber, the support surface is used to support the mobile device, the mobile device blocks at least part of the heat dissipation chamber, and the first space includes the heat dissipation chamber.

15. The apparatus according to claim 13 or 14, characterized in that, The bearing surface is the upper surface of the charging panel; or, The upper surface of the charging panel has a recessed cavity, and the bearing surface is the bottom surface of the cavity.

16. The apparatus according to claim 14 or 15, characterized in that, The charging panel is provided with a cooling channel, which is connected to the heat dissipation chamber. The temperature sensor is located in the cooling channel, and the detection end of the temperature sensor faces the heat dissipation chamber.

17. The apparatus according to any one of claims 13-16, characterized in that, The wireless charging device further includes a wireless charging coil disposed on the charging panel. Along the thickness direction of the charging panel, the first space and the orthographic projection of the wireless charging coil on the charging panel at least partially overlap.

18. The apparatus according to any one of claims 13-17, characterized in that, The temperature sensor is an infrared sensor.

19. A wireless charging detection method, characterized in that, Used in wireless charging systems, including charging panels and charging modules; The charging panel is used to support a mobile device, and a first space is formed between the mobile device and one end of the charging panel. The method includes: Obtain the temperature data of the first space; The operating state of the charging module is controlled based on the temperature data.

20. The method according to claim 19, characterized in that, The step of controlling the operating state of the charging module based on the temperature data includes: When the determination result indicates that the temperature of the first space exceeds the first threshold, the operating state is controlled to stop wireless charging; or... When the determination result is that the temperature of the first space does not exceed the first threshold, the working state is controlled to maintain wireless charging.

21. The method according to claim 20, characterized in that, The control of the operating state to maintain wireless charging includes: The charging power of the charging module is adjusted, and the magnitude of the charging power is negatively correlated with the temperature of the first space.

22. The method according to claim 20 or 21, characterized in that, The method further includes: When the temperature of the first space exceeds the first threshold, a prompt message is output through the prompt unit, which is used to prompt the user that the charging panel temperature is too high.

23. The method according to claim 22, characterized in that, The notification message is also used to indicate the presence of a metallic foreign object on the charging panel.

24. A terminal, characterized in that, It includes the wireless charging system as described in any one of claims 1 to 12, or the wireless charging device as described in any one of claims 14 to 19.

25. An electronic device, characterized in that, The electronic device includes a processor and a memory, the memory being used to store a computer program, the processor calling the computer program to implement the method of any one of claims 19-23.

26. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, which, when executed, performs the method as described in any one of claims 19 to 23.

27. A computer program product, characterized in that, The computer program product includes a computer program, which, when executed, performs the method as described in any one of claims 19 to 23.

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