Wireless charging device, intelligent terminal and intelligent equipment assembly

Abstract

The utility model provides a wireless charging device, an intelligent terminal and an intelligent equipment assembly. The wireless charging device comprises a coil, a communication circuit, a charging circuit and a switch assembly. The switch assembly is electrically connected with the coil, the communication end of the communication circuit and the output end of the charging circuit. The switch assembly is used for controlling the communication circuit to send or receive a communication signal through the coil according to the switching control signal; and / or used for controlling the charging circuit to output a voltage signal through the coil. According to the technical scheme of the invention, the intelligent terminal can achieve the near field communication and wireless charging of the intelligent accessory through the single coil.

Description

Technical Field

[0001] The present application relates to the technical field of wireless charging, and particularly to a wireless charging device, a smart terminal, and a smart device component. Background Art

[0002] Current smart terminals, such as mobile phones, tablets, personal computers, etc., can communicate with and charge smart accessories through near-field communication methods, such as NFC communication.

[0003] During the conception and implementation of the present application, the inventors found that at least the following problems exist: It is necessary to simultaneously provide two coils, a communication coil and a charging coil, in the smart terminal, which increases the volume of the smart terminal and at the same time raises the cost of the smart terminal.

[0004] The foregoing description is for the purpose of providing general background information and does not necessarily constitute prior art. Summary of the Utility Model

[0005] In view of the above technical problems, the present application provides a wireless charging device, a smart terminal, and a smart device component, aiming to enable the smart terminal to achieve near-field communication and wireless charging of smart accessories through a single coil.

[0006] The present application discloses a wireless charging device, including a coil, a communication circuit, a charging circuit, and a switch component;

[0007] The switch component is electrically connected to the coil, the communication terminal of the communication circuit, and the output terminal of the charging circuit respectively;

[0008] The switch component is configured to control the communication circuit to send or receive the communication signal through the coil according to a switching control signal, and / or control the charging circuit to output the voltage signal through the coil.

[0009] Optionally, the communication terminal of the communication circuit, the output terminal of the charging circuit, and the first conducting end of the switch component are electrically connected to the coil respectively; and / or, the second conducting end of the switch component is grounded.

[0010] Optionally, the coil has a first end and a second end.

[0011] Optionally, the communication terminal of the communication circuit includes a first output terminal and a second output terminal.

[0012] Optionally, the output terminal of the charging circuit includes a first output terminal and a second output terminal.

[0013] Optionally, the switch component includes a first switch circuit and a second switch circuit.

[0014] Optionally, the first output terminal of the communication circuit, the first conducting terminal of the first switching circuit, and the first output terminal of the charging circuit are respectively connected to the first end of the coil.

[0015] Optionally, the second output terminal of the communication circuit, the first conducting terminal of the second switching circuit, and the second output terminal of the charging circuit are respectively connected to the second end of the coil.

[0016] Optionally, the second conducting terminals of the first switching circuit and the second switching circuit are both grounded.

[0017] Optionally, the switching component includes a first input terminal, a second input terminal, and an output terminal.

[0018] Optionally, the output terminal of the switching component is electrically connected to the coil.

[0019] Optionally, the first input terminal of the switching component is connected to the communication terminal of the communication circuit, and the second input terminal of the switching component is connected to the output terminal of the charging circuit.

[0020] Optionally, the switching component is configured to conduct the path between the communication terminal of the communication circuit and the coil according to the switching control signal; and / or conduct the path between the output terminal of the charging circuit and the coil.

[0021] Optionally, the communication circuit includes a communication signal transceiver circuit, including a signal terminal for transmitting or receiving the communication signal.

[0022] Optionally, the communication circuit may further include a communication impedance matching circuit, the first end of the communication impedance matching circuit is connected to the signal terminal of the communication signal transceiver circuit, and the communication terminal of the communication circuit includes the second end of the communication impedance matching circuit.

[0023] Optionally, the communication circuit may further include a communication signal transceiver circuit for transmitting or receiving the communication signal via the communication impedance matching circuit.

[0024] Optionally, the charging circuit includes a voltage signal output circuit, including an output terminal for outputting the voltage signal.

[0025] Optionally, the charging circuit may further include a charging impedance matching circuit, the first end of the charging impedance matching circuit is connected to the output terminal of the voltage signal output circuit, and the output terminal of the charging circuit includes the second end of the charging impedance matching circuit.

[0026] Optionally, the voltage signal output circuit is configured to output the voltage signal via the charging impedance matching circuit.

[0027] Optionally, the voltage signal output circuit includes a voltage conversion circuit.

[0028] Optionally, the power supply terminal of the voltage conversion circuit is used to connect to a first voltage.

[0029] Optionally, the output terminal of the voltage conversion circuit is connected to the first end of the charging impedance matching circuit.

[0030] Optionally, the voltage conversion circuit is used to convert the first voltage and then output the voltage signal through the charging impedance matching circuit.

[0031] Optionally, the wireless charging device further includes a main control circuit.

[0032] Optionally, the main control circuit is electrically connected to the communication circuit and / or the charging circuit.

[0033] Optionally, the main control circuit is electrically connected to the controlled end of the switch component and is used to output the switching control signal to the switch component.

[0034] The present application also provides an intelligent terminal, including: the wireless charging device according to any one of the above.

[0035] The present application also provides an intelligent device component, including at least one intelligent accessory and the intelligent terminal as described above; wherein, the intelligent terminal communicates with at least one of the intelligent accessories through the coil; or, the intelligent terminal transmits electrical energy to at least one of the intelligent accessories through the coil.

[0036] The present application provides a wireless charging device, including a coil, a communication circuit, a charging circuit, and a switch component. Among them, the communication terminal of the communication circuit is used to send or receive communication signals; the output terminal of the charging circuit is used to output voltage signals; the switch component is used to work according to the switching control signal, so that the communication circuit sends or receives the communication signals through the coil, or the charging circuit outputs the voltage signals through the coil. Thus, in practical applications, an intelligent terminal provided with the above wireless charging device can realize near-field communication with an intelligent accessory or wirelessly charge the intelligent accessory only through a single coil, without additionally setting multiple coils, saving the volume for additionally setting coils in the intelligent terminal and effectively improving the integration of the intelligent terminal. Description of the Drawings

[0037] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 Schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application;

[0039] Figure 2 Schematic diagram of a communication network system architecture provided by an embodiment of the present application;

[0040] Figure 3 Schematic diagram of the circuit module of a wireless charging device shown according to the first embodiment;

[0041] Figure 4 Another schematic diagram of the circuit module of a wireless charging device shown according to the first embodiment;

[0042] Figure 5 Specific schematic diagram of the circuit of a wireless charging device shown according to the first embodiment;

[0043] Figure 6 Another schematic diagram of the circuit module of a wireless charging device shown according to the first embodiment;

[0044] Figure 7 Another schematic diagram of the circuit module of a wireless charging device shown according to the first embodiment;

[0045] Figure 8 Schematic diagram of the circuit module of a wireless charging device shown according to the second embodiment;

[0046] Figure 9 Schematic diagram of the cooperation between a smart terminal and a smart accessory provided with the wireless charging device of the present application.

[0047] Label description

[0048]

[0049]

[0050] The realization of the objectives of this application, its functional features and advantages will be further described in conjunction with embodiments with reference to the accompanying drawings. Through the above-mentioned accompanying drawings, specific embodiments of this application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0051] Here, exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with this application. On the contrary, they are merely examples of devices and methods consistent with some aspects of this application as detailed in the appended claims.

[0052] It should be noted that in this document, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising that element. Optionally, components, features, elements with the same name in different embodiments of this application may have the same meaning or different meanings, and their specific meanings need to be determined based on their explanations in the specific embodiments or further in combination with the context of the specific embodiments.

[0053] It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining". Furthermore, as used in the present disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising", "including" indicate the presence of the stated features, steps, operations, elements, components, items, kinds, and / or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or", "and / or", "including at least one of the following" and the like used in the present application may be interpreted inclusively, or mean any one or any combination. For example, "including at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C", and again, "A, B or C" or "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C". An exception to this definition occurs only when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0054] Depending on the context, the words "if", "when" as used herein may be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detected (stated condition or event)" or "in response to detecting (stated condition or event)".

[0055] It should be understood that the specific embodiments described herein are merely for explaining the present application and are not used to limit the present application.

[0056] In the following description, the suffixes such as "module", "component", or "unit" used to denote elements are only for the convenience of the description of the present application and have no specific meaning in themselves. Therefore, "module", "component", or "unit" may be used interchangeably.

[0057] The intelligent terminal can be implemented in various forms. For example, the intelligent terminal described in this application can include mobile terminals such as mobile phones, tablet computers, laptop computers, palmtop computers, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., and fixed terminals such as digital TVs, desktop computers, etc.

[0058] In the following description, the mobile terminal will be taken as an example for illustration. Those skilled in the art will understand that, except for the components specifically for mobile purposes, the structure according to the embodiments of this application can also be applied to fixed-type terminals.

[0059] Please refer to Figure 1 , which is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of this application. The mobile terminal 100 may include components such as an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (audio / video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art can understand that Figure 1 the mobile terminal structure shown in

[0060] does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements. Figure 1 The following will specifically introduce each component of the mobile terminal:

[0061] The radio frequency unit 101 can be used for receiving and transmitting information or signals during a call. Specifically, after receiving the downlink information from the base station, it is sent to the processor 110 for processing; in addition, the uplink data is sent to the base station. Generally, the radio frequency unit 101 includes but is not limited to coils, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc. In addition, the radio frequency unit 101 can also communicate with the network and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), and 5G, etc.

[0062] WiFi belongs to short-range wireless transmission technology. The mobile terminal can help users send and receive emails, browse the web, and access streaming media through the WiFi module 102, which provides users with wireless broadband Internet access. Although Figure 1 the WiFi module 102 is shown, it can be understood that it is not an essential component of the mobile terminal and can be omitted entirely within the scope of not changing the essence of the utility model according to needs.

[0063] The audio output unit 103 can convert the audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the mobile terminal 100 is in call signal reception mode, call mode, recording mode, voice recognition mode, broadcast reception mode, etc. Moreover, the audio output unit 103 can also provide audio output related to specific functions executed by the mobile terminal 100 (such as call signal reception sound, message reception sound, etc.). The audio output unit 103 can include a speaker, a buzzer, etc.

[0064] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes the image data of still pictures or videos obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. The processed image frames can be displayed on the display unit 106. The image frames processed by the GPU 1041 can be stored in the memory 109 (or other storage media) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sounds (audio data) via the microphone 1042 in operating modes such as the phone call mode, the recording mode, the voice recognition mode, etc., and can process such sounds into audio data. The processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in the case of the phone call mode and output. The microphone 1042 can implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) the noise or interference generated during the reception and transmission of audio signals.

[0065] The mobile terminal 100 further includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that the mobile phone can also be configured with, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be elaborated here.

[0066] The display unit 106 is used to display the information input by the user or the information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 can be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), etc.

[0067] The user input unit 107 can be used to receive input numerical or character information and generate key signal inputs related to the user settings and function control of the mobile terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect touch operations of the user on or near it (such as operations of the user using a finger, a stylus, or any suitable object or accessory on or near the touch panel 1071), and drive the corresponding connection device according to a preset program. The touch panel 1071 can include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the touch orientation of the user, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch point coordinates, and then sends it to the processor 110, and can receive and execute the commands sent by the processor 110. In addition, the touch panel 1071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, etc., and specific details are not limited here.

[0068] Optionally, the touch panel 1071 may cover the display panel 1061. After the touch panel 1071 detects a touch operation on or near it, it transmits the operation to the processor 110 to determine the type of touch event. Subsequently, the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in Figure 1 the touch panel 1071 and the display panel 1061 are implemented as two independent components to realize the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the mobile terminal, and specific details are not limited here.

[0069] The interface unit 108 serves as an interface through which at least one external device can be connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headset port, and so on. The interface unit 108 can be used to receive inputs from external devices (such as data information, power, etc.) and transmit the received inputs to one or more components within the mobile terminal 100 or can be used to transmit data between the mobile terminal 100 and external devices.

[0070] The memory 109 can be used to store software programs and various data. The memory 109 mainly includes a program storage area and a data storage area. Optionally, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, phone book, etc.). In addition, the memory 109 can include high-speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0071] The processor 110 is the control center of the mobile terminal, connecting various parts of the entire mobile terminal through various interfaces and circuits. By running or executing software programs and / or modules stored in the memory 109, and calling data stored in the memory 109, it executes various functions of the mobile terminal and processes data, thereby performing overall monitoring of the mobile terminal. The processor 110 can include one or more processing units; preferably, the processor 110 can integrate an application processor and a modem processor. Optionally, the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 110.

[0072] The mobile terminal 100 can also include a power supply 111 (such as a battery) for powering each component. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system.

[0073] Although Figure 1 not shown, the mobile terminal 100 can also include a Bluetooth module, etc., which will not be elaborated here.

[0074] To facilitate the understanding of the embodiments of the present application, the communication network system on which the mobile terminal of the present application is based will be described below.

[0075] Please refer to Figure 2 , Figure 2 which is an architecture diagram of a communication network system provided by the embodiments of the present application. This communication network system is an LTE system of the general mobile communication technology. The LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and the IP service 204 of the operator that are sequentially communicatively connected.

[0076] Optionally, the UE 201 may be the above-mentioned terminal 100, which will not be elaborated here.

[0077] The E-UTRAN 202 includes an eNodeB 2021 and other eNodeBs 2022, etc. Optionally, the eNodeB 2021 may be connected to other eNodeBs 2022 through a backhaul (such as an X2 interface), the eNodeB 2021 is connected to the EPC 203, and the eNodeB 2021 may provide access for the UE 201 to the EPC 203.

[0078] The EPC 203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving Gate Way) 2034, a PGW (PDN Gate Way) 2035, a PCRF (Policy and Charging Rules Function) 2036, etc. Optionally, the MME 2031 is a control node that processes the signaling between the UE 201 and the EPC 203 and provides bearer and connection management. The HSS 2032 is used to provide some registers to manage functions such as a home location register (not shown in the figure) and stores some user-specific information such as service characteristics and data rates. All user data can be sent through the SGW 2034. The PGW 2035 may provide IP address allocation for the UE 201 and other functions. The PCRF 2036 is a policy and charging control policy decision point for service data flows and IP bearer resources, and it selects and provides available policy and charging control decisions for a policy and charging enforcement functional unit (not shown in the figure).

[0079] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem), or other IP services, etc.

[0080] Although the above has been introduced by taking the LTE system as an example, those skilled in the art should be aware that this application is not only applicable to the LTE system, but also applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G, and future new network systems (such as 6G), etc., which are not limited here.

[0081] Based on the above mobile terminal hardware structure and communication network system, various embodiments of this application are proposed.

[0082] The first embodiment

[0083] This application proposes a wireless charging device. Referring to Figure 3 - Figure 4 , the wireless charging device includes: a coil 10, a communication circuit 20, a charging circuit 30, and a switch component 40;

[0084] The switch component 40 is electrically connected to the coil 10, the communication terminal of the communication circuit 20, and the output terminal of the charging circuit 30 respectively;

[0085] The switch component 40 is used to control the communication circuit 20 to send or receive communication signals via the coil 10 according to a switching control signal, and / or control the charging circuit 30 to output a voltage signal via the coil 10.

[0086] Optionally, the communication circuit 20 can be implemented by a near-field communication transceiver chip, such as an NFC communication transceiver chip. The near-field communication transceiver chip can modulate the signal transmitted by the circuit module electrically connected to it through a signal protocol and then output a communication signal, or receive the communication signal received by and sent from the coil 10, and demodulate it according to a certain signal protocol and then output a corresponding signal to the circuit module electrically connected to it, so as to realize data intertransmission.

[0087] Optionally, the charging circuit 30 can be implemented by a wireless charging management chip, or a voltage regulating circuit composed of multiple switching devices, inductors, and capacitors. Optionally, the charging circuit 30 can be equipped with a built-in energy storage unit, such as a battery, to convert the voltage in the battery and then output a voltage signal with a corresponding frequency. When the voltage signal is output via the coil 10, for a receiving device approaching the coil 10, such as the smart accessory in the following embodiment, it can receive the voltage signal output by the wireless charging device of this application through the coupling of its internal coil 10, and charge its own battery through its own charging management circuit.

[0088] Optionally, the switch component 40 can be implemented by a switching tube, such as a MOS tube, a triode, an IGBT tube, etc., or the switch component 40 can also be implemented by a switching device, such as a relay, a contactor, etc.

[0089] Optionally, the switching control signal can be given by other circuit modules in the smart terminal, such as the main control circuit in the smart terminal. Optionally, the switching control signal can also be given by the communication circuit 20 and the charging circuit 30, that is, when the charging circuit 30 needs to output a voltage signal to the outside via the coil 10, it outputs a corresponding switching control signal to the switch component 40 to make the switch component 40 work, so that the charging circuit 30 outputs a voltage signal via the coil 10. The same applies to the communication circuit 20.

[0090] Optionally, refer to Figure 3 , in one embodiment, the switch component 40 includes a first input terminal, a second input terminal, and an output terminal; the wireless charging device includes at least one of the following; the output terminal of the switch component 40 is electrically connected to the coil 10; the first input terminal of the switch component 40 is connected to the communication terminal of the communication circuit 20, and the second input terminal of the switch component 40 is connected to the output terminal of the charging circuit 30;

[0091] The switch component 40 is configured to conduct a path between the communication terminal of the communication circuit 20 and the coil 10 according to a switching control signal; and / or, conduct a path between the output terminal of the charging circuit 30 and the coil 10.

[0092] In this embodiment, optionally, the switch component 40 is implemented by a switch array composed of multiple above-mentioned switching devices or switching tubes. Optionally, the switch component 40 can also be implemented by a multi-pole multi-throw switch, such as an analog switch. Optionally, the switching control signal may include a communication switching signal and a charging switching signal. When the controlled terminal of the switch component 40 receives a communication switching signal output by another circuit or the communication circuit 20, it will switch to only conduct the path between the communication terminal of the communication circuit 20 and the coil 10, so that the communication terminal of the communication circuit 20 can be connected to the coil 10, and communication signals can be received and transmitted through the coil 10. Similarly, when the controlled terminal of the switch component 40 receives a charging switching signal output by another circuit or the charging circuit 30, it will switch to only conduct the path between its own second input terminal and the output terminal, that is, conduct the path between the output terminal of the charging circuit 30 and the coil 10, so that the charging circuit 30 can output a voltage signal through the coil 10. With such a setting, the wireless charging device of the present application can implement near-field communication and wireless charging through the same coil 10 according to the current demand, without additionally setting a charging coil 10, effectively saving the space for arranging an additional coil 10 in the smart terminal, and improving the integration of the smart terminal while ensuring the functionality of the smart terminal.

[0093] Optionally, refer to Figure 4 , in another embodiment, the communication terminal of the communication circuit 20, the output terminal of the charging circuit 30, and the first conducting terminal of the switch component 40 are respectively electrically connected to the coil 10; and / or, the second conducting terminal of the switch component 40 is grounded.

[0094] In this embodiment, the switching control signal may include a communication reception switching signal, a communication transmission switching signal, and a charging switching signal. Optionally, near-field communication generally outputs communication signals through carrier communication. Therefore, when the communication circuit 20 needs to output a communication signal, an external circuit such as a main controller, or the communication circuit 20 itself, can output a communication transmission switching signal to the switching component 40, so that the switching component 40 operates to perform carrier modulation on the communication signal and then output it through the coil 10. Optionally, the frequency of the communication signal after carrier modulation can be 13.56 MHz. Optionally, the charging circuit 30 does not output a voltage signal. Similarly, when an external circuit such as a main controller, or the communication circuit 20 itself, outputs a communication reception switching signal, the switching component 40 will be in an open state to disconnect the path between its first conduction end and the ground, so that the communication terminal of the communication circuit 20 receives the communication signal transmitted by the external smart accessory received by the coil 10. When the wireless charging device of the present application needs to charge externally through the coil 10, an external circuit such as a main controller, or the charging circuit 30 itself, will output a charging switching signal to make the switching component 40 in an open state. At this time, the voltage signal will be directly output through the coil 10. Similarly, at this time, the communication circuit 20 is in a stopped working state to prevent the voltage signal from affecting it. With such a setting, not only can the wireless charging device of the present application achieve near-field communication and wireless charging through the same coil 10, but also compared with performing carrier modulation in the communication circuit 20 and then outputting it through the switching component 40 in the above embodiment, in the present application, the switch in the communication circuit 20 is directly used as the switching component 40 for switching the working state of the coil 10, thereby further reducing the number of switching devices provided in the wireless charging device and further improving the integration degree of the smart terminal.

[0095] Optionally, based on the above Figure 4 embodiment, referring to Figure 5 , the coil 10 of the wireless charging device has a first end and a second end. Optionally, the communication terminal of the communication circuit 20 includes a first output end and a second output end; optionally, the output terminal of the charging circuit 30 includes a first output end and a second output end; optionally, the switching component 40 includes a first switching circuit 41 and a second switching circuit 42; optionally, the first output end of the communication circuit 20, the first conduction end of the first switching circuit 41, and the first output end of the charging circuit 30 are respectively connected to the first end of the coil 10; optionally, the second output end of the communication circuit 20, the first conduction end of the second switching circuit 42, and the second output end of the charging circuit 30 are respectively connected to the second end of the coil 10; optionally, the second conduction end of the first switching circuit 41 and the second conduction end of the second switching circuit 42 are both grounded.

[0096] In this embodiment, both the first switch circuit 41 and the second switch circuit 42 can be implemented by using the switching devices or switching transistors in the above embodiment, which will not be elaborated here. Taking the Figure 5 circuit shown in as an example, the first switch circuit 41 includes a first switching transistor Q1, and the second switch circuit 42 includes a second switching transistor Q2. When an external circuit, such as a main controller, or the communication circuit 20 itself can output a communication transmission switching signal to the switch assembly 40, the communication transmission switching signal includes a first signal output to the control terminal of the first switching transistor Q1 and a second signal output to the control terminal of the second switching transistor Q2, so as to drive the first switching transistor Q1 and the second switching transistor Q2 to perform a switching operation, so as to output the communication signal after carrier modulation through the coil 10. When an external circuit, such as a main controller, or the communication circuit 20 itself can output a communication reception signal or a charging switching signal, the control terminals of the first switching transistor Q1 and the second switching transistor Q2 will both receive a low-level signal, so as to disconnect the path between its own first conduction end and the ground, so as to implement the above functions.

[0097] The present application provides a wireless charging device, including a coil 10, a communication circuit 20, a charging circuit 30 and a switch assembly 40. Among them, the communication terminal of the communication circuit 20 is used to send or receive communication signals; the output terminal of the charging circuit 30 is used to output a voltage signal; the switch assembly 40 is used to work according to a switching control signal, so that the communication circuit 20 sends or receives communication signals through the coil 10, or the charging circuit 30 outputs a voltage signal through the coil 10. In this way, in practical applications, the intelligent terminal provided with the above wireless charging device can realize near-field communication with the intelligent accessory or wirelessly charge the intelligent accessory only through a single coil 10, without additionally arranging a plurality of coils 10, saving the volume for additionally arranging the coil 10 in the intelligent terminal, and effectively improving the integration of the intelligent terminal.

[0098] Optionally, referring to Figure 6 , the communication circuit includes at least one of the following: a communication signal transceiver circuit, including a signal terminal for sending or receiving communication signals; a communication impedance matching circuit, the first end of the communication impedance matching circuit 22 is connected to the signal terminal of the communication signal transceiver circuit 21, and the communication terminal of the communication circuit 20 includes the second end of the communication impedance matching circuit 22; a communication signal transceiver circuit 21, for sending or receiving communication signals through the communication impedance matching circuit 22.

[0099] Optionally, the communication signal transceiver circuit 21 can be implemented by using a communication signal transceiver chip.

[0100] Optionally, the communication impedance matching circuit 22 can be implemented by using at least one of an inductor, a capacitor, and a resistor, such as a π-type impedance matching circuit, a T-type impedance matching circuit, etc. The R & D personnel can set the impedance parameters in the communication impedance matching circuit 22 according to the transmission impedance on the path through which the communication signal is transmitted and received and the impedance of the coil 10. By setting in this way, the transmission and reception efficiency of the communication signal can be effectively improved, the reflection and loss of the communication signal can be reduced, and thus the stability and reliability of the communication between the intelligent terminal provided with the wireless charging device of the present application and the intelligent accessory can be effectively ensured.

[0101] Optionally, referring to Figure 6 - Figure 7 , the charging circuit 30 includes: a voltage signal output circuit 31, including an output terminal for outputting the voltage signal; a charging impedance matching circuit 32, a first end of the charging impedance matching circuit 32 is connected to the output terminal of the voltage signal output circuit 31, and the output terminal of the charging circuit 30 includes a second end of the charging impedance matching circuit 32; the voltage signal output circuit 31 is configured to output a voltage signal through the charging impedance matching circuit 32.

[0102] Optionally, the voltage signal output circuit 31 can convert the voltage of the battery voltage to a suitable voltage and modulate its frequency to a frequency of 13.56 MHz and then output it through the coil 10. The above frequency has a higher compatibility with the small coil 10, so that the volume of the coil 10 can be effectively reduced, and thus the integration degree of the intelligent terminal can be improved and the cost of the intelligent terminal can be reduced.

[0103] Optionally, the voltage signal output circuit 31 can be a power supply module including an energy storage unit such as a battery. A voltage conversion circuit for converting the voltage of the battery of the energy storage unit and outputting a voltage signal can be provided inside the power supply module. Optionally, a voltage regulation circuit composed of a plurality of switching devices, inductors, and capacitors, or a wireless charging management chip.

[0104] Optionally, referring to Figure 7 , the voltage signal output circuit 31 includes a voltage conversion circuit 311; the voltage conversion circuit 311 includes at least one of the following: the power supply terminal of the voltage conversion circuit 311 is used to access a first voltage; the output terminal of the voltage conversion circuit 311 is connected to the first end of the charging impedance matching circuit 32; the voltage conversion circuit 311 is configured to convert the first voltage and then output a voltage signal through the charging impedance matching circuit 32.

[0105] In this embodiment, the voltage conversion circuit 311 can be implemented in the manner mentioned in the above embodiment and has the same effect, which will not be elaborated here. Optionally, the first voltage can be provided by the battery in the intelligent terminal or provided by other external voltage sources, such as the first voltage accessed through an external charging interface.

[0106] Optionally, the charging impedance matching circuit 32 can be implemented by using at least one of an inductor, a capacitor, and a resistor. For example, a π-type impedance matching circuit, a T-type impedance matching circuit, etc. R & D personnel can correspondingly set the impedance parameters in the charging impedance matching circuit 32 according to the transmission impedance on the path through which the voltage signal passes and the impedance of the coil 10. By setting like this, the transmission efficiency of the voltage signal can be effectively improved, the reflection and loss of the voltage signal can be reduced, thereby effectively ensuring the charging efficiency of the intelligent terminal equipped with the wireless charging device of the present application for the intelligent accessory, reducing the charging loss, and reducing the heat generated during charging.

[0107] Second Embodiment

[0108] Part of the technical principles of the second embodiment are based on the first embodiment. For a brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding content in at least one of the first embodiments.

[0109] Reference Figure 8 - Figure 9 The wireless charging device further includes: a main control circuit; the main control circuit is electrically connected to the communication circuit 20 and / or the charging circuit 30; and / or, the main control circuit is electrically connected to the controlled end of the switch component 40 for outputting a switching control signal to the switch component 40.

[0110] In this embodiment, the coil 10 has a first end and a second end; the communication end of the communication circuit 20 includes a first output end and a second output end; the output end of the charging circuit 30 includes a first output end and a second output end; the switch component 40 includes a first switch circuit 41 and a second switch circuit 42; optionally, the first output end of the communication circuit 20, the first conducting end of the first switch circuit 41, and the first output end of the charging circuit 30 are respectively connected to the first end of the coil 10; the second output end of the communication circuit 20, the first conducting end of the second switch circuit 42, and the second output end of the charging circuit 30 are respectively connected to the second end of the coil 10; the second conducting ends of the first switch circuit 41 and the second switch circuit 42 are both grounded.

[0111] Optionally, the main control circuit can be implemented by using a main controller, such as an MCU (Microcontroller Unit, micro control unit), a DSP (Digital Signal Process, digital signal processing chip), an FPGA (Field Programmable Gate Array, programmable logic gate array chip), an SOC (System On Chip, system-level chip), etc.

[0112] Optionally, the main control circuit is electrically connected to the controlled end of the switch component 40, the communication circuit 20, and the charging circuit 30 respectively, so as to realize the communication and charging operations of the wireless charging device of the present application for the smart accessory. Optionally, in combination with Figure 5 the embodiments in Figure 9 , by default, the main control circuit controls the charging circuit 30 to stop outputting voltage signals, controls the switch component 40 to be in an open state, and makes the communication circuit 20 be in a receiving state. When the smart accessory approaches, the communication signal emitted by the smart accessory through its own coil 10 is coupled and output to the communication circuit 20 through the coil 10, and is output to the main control circuit after being converted according to the communication protocol by the communication circuit 20. After determining that the approaching device is a smart accessory, the main control circuit controls the switch component 40 to act to modulate the communication signal converted and output by the communication circuit 20, and is coupled and output to the smart accessory through the coil 10, thereby establishing a communication connection between the main control circuit and the smart accessory, that is, establishing a communication connection between the smart terminal provided with the wireless charging device of the present application and the smart accessory. Then, when the main control circuit obtains the charging requirement output by the current smart accessory, it can control the switch component 40 to be in an open state, control the communication circuit 20 to stop working, and control the charging circuit 30 to start outputting voltage signals to be coupled to the smart accessory through the coil 10 to charge the smart accessory. In this way, through the above settings, the smart terminal provided with the above wireless charging device can not only communicate with the smart accessory to realize data intertransmission, but also directly wirelessly charge the smart accessory, greatly reducing the dependence of the smart accessory on the charging cable and improving the diversity of the functions of the smart terminal.

[0113] The present application also proposes a smart terminal, including the wireless charging device as described in any one of the above.

[0114] It should be noted that since the smart terminal of the present application includes all the technical solutions of all the embodiments of the above wireless charging device, it has at least all the beneficial effects brought by the technical solutions of the above wireless charging device, which will not be elaborated one by one here.

[0115] The present application also proposes a smart device assembly, including at least one smart accessory and the smart terminal as described in any one of the above. Optionally, the smart terminal is used to communicate with at least one smart accessory through the coil; optionally, transmit electric energy to at least one smart accessory through the coil.

[0116] Optionally, the smart accessory may include a smart bracelet, a smart watch, a smart ring, a smart necklace, etc. It should be noted that since the smart device assembly of the present application includes all the technical solutions of all the embodiments of the above smart terminal, it has at least all the beneficial effects brought by the technical solutions of the above smart terminal, which will not be elaborated one by one here.

[0117] It can be understood that the above scenarios are only examples and do not constitute limitations on the application scenarios of the technical solutions provided by the embodiments of this application. The technical solutions of this application can also be applied to other scenarios. For example, as is known to those of ordinary skill in the art, with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are equally applicable to similar technical problems.

[0118] The serial numbers of the embodiments of this application above are only for description and do not represent the superiority or inferiority of the embodiments.

[0119] The steps in the method of the embodiments of this application can be adjusted, combined, and deleted according to actual needs.

[0120] The units in the devices of the embodiments of this application can be combined, divided, and deleted according to actual needs.

[0121] In this application, for the description of the same or similar term concepts, technical solutions, and / or application scenarios, generally only the first occurrence is described in detail. When it appears repeatedly later, for the sake of brevity, it is generally not described again. When understanding the technical solutions of this application and other contents, for the same or similar term concepts, technical solutions, and / or application scenarios that are not described in detail later, reference can be made to their relevant detailed descriptions before.

[0122] In this application, the descriptions of each embodiment have their own emphases. For the parts not described or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0123] The technical features of the technical solutions of this application can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as within the scope recorded in this application.

[0124] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the essence of the technical solutions of this application, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium as described above (such as ROM / RAM, magnetic disk, optical disc), and includes several instructions to enable a terminal device (which can be a mobile phone, computer, server, controlled terminal, or network device, etc.) to execute the methods of each embodiment of this application.

[0125] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a storage medium or transmitted from one storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.). The storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, storage disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)), etc.

[0126] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present application.

Claims

1. A wireless charging device, characterized in that, It includes a coil, a communication circuit, a charging circuit and a switch component; The switch component is electrically connected to the coil, the communication terminal of the communication circuit and the output terminal of the charging circuit respectively; The switch component is used to control the communication circuit to send or receive communication signals through the coil according to a switching control signal, or control the charging circuit to output a voltage signal through the coil; Wherein, the communication terminal of the communication circuit, the output terminal of the charging circuit and the first conducting end of the switch component are electrically connected to the coil respectively; the second conducting end of the switch component is grounded.

2. The wireless charging device according to claim 1, wherein It includes at least one of the following: The coil has a first end and a second end; The communication terminal of the communication circuit includes a first output end and a second output end; The output terminal of the charging circuit includes a first output end and a second output end; The switch component includes a first switch circuit and a second switch circuit; The first output end of the communication circuit, the first conducting end of the first switch circuit and the first output end of the charging circuit are connected to the first end of the coil respectively; The second output end of the communication circuit, the first conducting end of the second switch circuit and the second output end of the charging circuit are connected to the second end of the coil respectively; The second conducting ends of the first switch circuit and the second switch circuit are both grounded.

3. The wireless charging device according to claim 1, characterized in that, The switch component includes a first input end, a second input end and an output end; It includes at least one of the following: The output end of the switch component is electrically connected to the coil; The first input end of the switch component is connected to the communication terminal of the communication circuit, and the second input end of the switch component is connected to the output terminal of the charging circuit; The switch component is used to conduct the path between the communication terminal of the communication circuit and the coil according to the switching control signal; Or conduct the path between the output terminal of the charging circuit and the coil.

4. The wireless charging device according to any one of claims 1 to 3, characterized in that The communication circuit includes at least one of the following: A communication signal transceiver circuit, including a signal terminal for sending or receiving the communication signal; A communication impedance matching circuit, the first end of the communication impedance matching circuit is connected to the signal terminal of the communication signal transceiver circuit, and the communication terminal of the communication circuit includes the second end of the communication impedance matching circuit; The communication signal transceiver circuit is used to send or receive the communication signal through the communication impedance matching circuit.

5. The wireless charging device according to any one of claims 1 to 3, characterized in that The charging circuit includes at least one of the following: A voltage signal output circuit, including an output terminal for outputting the voltage signal; A charging impedance matching circuit, the first end of the charging impedance matching circuit is connected to the output terminal of the voltage signal output circuit, and the output terminal of the charging circuit includes the second end of the charging impedance matching circuit; The voltage signal output circuit is used to output the voltage signal through the charging impedance matching circuit.

6. The wireless charging device according to claim 5, wherein, The voltage signal output circuit includes a voltage conversion circuit; it includes at least one of the following: The power supply terminal of the voltage conversion circuit is used to access a first voltage; The output terminal of the voltage conversion circuit is connected to the first end of the charging impedance matching circuit; The voltage conversion circuit is configured to perform voltage conversion on the first voltage and output the voltage signal through the charging impedance matching circuit.

7. The wireless charging device according to any one of claims 1 to 3, characterized in that, The wireless charging device further includes a main control circuit; The main control circuit is electrically connected to the communication circuit and / or the charging circuit; and / or, The main control circuit is electrically connected to the controlled end of the switch component and is configured to output the switching control signal to the switch component.

8. An intelligent terminal, characterized in that, Comprising: The wireless charging device according to any one of claims 1 to 7.

9. An intelligent device component, characterized in that, Comprising at least one smart accessory and the smart terminal according to claim 8; wherein, the smart terminal communicates with at least one of the smart accessories through the coil; or, the smart terminal transmits electric energy to at least one of the smart accessories through the coil.

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