Charging device and system

Abstract

The present invention is applicable to the field of wireless charging technology, and provides a charging device and system, wherein the charging device comprises: a data interface female socket, a data interface male socket, a wireless charging coil, a connector, a power switching module and a high-speed data switching module; the data interface female socket, the data interface male socket, the power switching module and the high-speed data switching module are all connected to the connector, the power switching module is connected to the wireless charging coil, and the data interface male socket is externally connected to the charged device. The charging device provided by the present invention has the function of receiving wireless charging induced current signals, and is independent of the charged device, so that the charged device can realize wireless charging without pre-installing a wireless charging receiver.

Description

Technical Field

[0001] The present invention belongs to the technical field of wireless charging, and in particular relates to a charging device and a system. Background Art

[0002] We usually call high-frequency magnetic resonance wireless charging, which complies with the A4WP (Alliance for Wireless Power) standard, the second-generation wireless charging technology. It overcomes some shortcomings of previous wireless charging technologies and can be well applied in life. Products with wireless charging batteries are more common, such as toothbrushes, LED (Light Emitting Diode) candles, remote controls, medical equipment, power tools, digital cameras and phones. Through these products that can transmit power over short distances, more and more users have experienced the convenience of wireless charging.

[0003] However, electronic devices without pre-installed wireless charging function cannot achieve wireless charging. Although wireless charging modules can be installed in electronic products, this requires professional technicians to modify the equipment, so it is difficult to be widely used. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a charging device and a system to solve the problem in the prior art that electronic products without a pre-installed wireless charging receiving function cannot achieve wireless charging.

[0005] A first aspect of an embodiment of the present invention provides a charging device, including a data interface female socket, a data interface male socket, a wireless charging coil, a connector, a power switching module, and a high-speed data switching module;

[0006] The data interface female socket, the data interface male socket, the power switching module and the high-speed data switching module are all connected to the connector, the power switching module is connected to the wireless charging coil, and the data interface male socket is externally connected to the charged device;

[0007] When the wireless charging coil senses the wireless charging signal and generates an induced current signal, the power switching module connects the connection between the wireless charging coil and the data interface male socket, and the high-speed data switching module disconnects the connection between the data interface female socket and the data interface male socket, and charges the charged device through the wireless charging coil;

[0008] When the data interface female socket is connected to an external data interaction device or a power source, the power switching module disconnects the connection between the wireless charging coil and the data interface male socket, and the high-speed data switching module connects the connection between the data interface female socket and the data interface male socket, charges the charged device through the power source or the data interaction device, and when the data interface female socket is connected to an external data interaction device, data interaction is performed with the charged device through the data interaction device.

[0009] Optionally, the charging device further includes a device identification module;

[0010] The device identification module is connected to the connector;

[0011] When the data interface socket is externally connected to a device, the device identification module identifies the type of the device externally connected to the data interface socket.

[0012] Optionally, the charging device further includes a voltage stabilizing module;

[0013] The voltage stabilizing module is connected to the connector and the high-speed data switching module;

[0014] The voltage stabilizing module stabilizes the induced current signal, the current signal output by the power supply, or the current signal output by the data interaction device, and then outputs the stabilized current signal to the high-speed data switching module.

[0015] Optionally, the charging device further comprises a protective back clip, the concave side of the protective back clip matches the back contour of the charged device;

[0016] The data interface male socket and the data interface female socket are arranged opposite to each other and are both located at one end of the concave side of the protective back clip;

[0017] The data interface female socket, the data interface male socket, the power switching module and the high-speed data switching module are integrated on the same circuit board, and the charging coil is connected to the circuit board.

[0018] Optionally, the charging device further comprises a cover film, which covers the circuit board and the charging coil and fits with the concave side of the protective back clip.

[0019] Optionally, the concave side of the protective back clip is provided with an anti-slip strip flange.

[0020] Optionally, the circuit board is fixed to the bottom of the protective back clip by threaded fasteners.

[0021] Optionally, the charging device also includes a matching wireless charging transmitter;

[0022] When the wireless charging transmitter is connected to an external power source and is located within the induction range of the wireless charging coil, the wireless charging coil generates an induction current signal.

[0023] Optionally, the wireless charging transmitter includes a base, and the base is provided with a groove that matches the outer contour of the charging device.

[0024] A second aspect of an embodiment of the present invention provides a charging system, including a charged device and the above-mentioned charging device.

[0025] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: a charging device is provided that is independent of the charged device and can wirelessly charge the charged device; through the charging device and system provided by the embodiments of the present invention, wireless charging of the charged device can be achieved without pre-installing a wireless charging receiver in the charged device; at the same time, by providing a data interface female socket and a data interface male socket connected to the data interface female socket on the charging device, when the charged device is connected to the data interface male socket, it can be directly connected to an external data interaction device or a power supply through the data interface female socket and a data cable, thereby achieving wired charging or data transmission of the charged device, which has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 is a schematic diagram of the structure of a charging device provided in Embodiment 1 of the present invention;

[0028] Figure 2 is a schematic diagram of the structure of a charging device provided in Embodiment 2 of the present invention;

[0029] Figure 3 is a schematic diagram of the structure of a charging device provided in Embodiment 3 of the present invention;

[0030] Figure 4 and 5 It is a structural schematic diagram of a charging device provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0031] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0032] In order to illustrate the technical solution of the present invention, a specific embodiment is provided below for illustration.

[0033] Embodiment 1

[0034] like Figure 1 As shown, this embodiment provides a charging device 10, which includes a data interface female socket 11, a data interface male socket 12, a wireless charging coil 13, a connector 14, a power switching module 15 and a high-speed data switching module 16.

[0035] The connection relationship of each component in the charging device 10 provided in this embodiment is as follows:

[0036] The data interface female socket 11, the data interface male socket 12, the power switching module 15 and the high-speed data switching module 16 are all connected to the connector 14, the power switching module 15 is connected to the wireless charging coil 13, and the data interface male socket 12 is externally connected to the charged device.

[0037] In this embodiment, the wireless charging coil 13 is used to generate an induced current signal when a wireless charging signal is sensed; the power switching module 15 is used to generate an induced current in the wireless charging coil 13, and when the induced current signal is detected, connect the connection between the wireless charging coil 13 and the data interface male socket 12; the high-speed data switching module 16 is used to disconnect the connection between the data interface female socket 11 and the data interface male socket 12 according to the induced current signal generated by the wireless charging coil 13, and charge the charged device through the wireless charging coil 13.

[0038] In this embodiment, when the data interface socket 11 is externally connected to a data interaction device or a power source, the power switching module 15 is used to disconnect the connection between the wireless charging coil 13 and the data interface male socket 12 according to the wired charging signal transmitted by the external data interaction device or the power source, so that even if there is an induced current signal in the wireless charging coil 13, the induced current signal cannot be transmitted to the data interface male socket 12; the high-speed data switching module 16 is used to connect the connection between the data interface socket 11 and the data interface male socket 12, and charge the charged device through the power source or the data interaction device. Since the data interface socket 11 is connected to the connector 14, when the data interface socket 11 is externally connected to the data interaction device, the connector 14 obtains the wired power signal and the voltage signal through the data interface socket 11, and the connector 14 transmits the voltage signal to the high-speed data switching module 16. The high-speed data switching module 16 turns on the data transmission switch through the voltage signal transmitted by the connector 14, so that the data interaction device can perform data interaction with the charged device.

[0039] In specific applications, when the wireless charging coil senses the wireless charging signal, it generates an induced current signal and transmits it to the power switching module. When the power switching module detects the induced current signal, it connects the connection between the wireless charging coil and the data interface male socket. The power switching module also transmits the induced current signal to the connector, and transmits the induced current signal to the high-speed data switching module through the connector. The high-speed data switching module disconnects the connection between the data interface female socket and the data interface male socket based on the induced current signal generated by the wireless charging coil, so that when the charged device is wirelessly charged, even if the data interface female socket is connected to an external power source or data interaction device, high-speed data transmission will not be performed.

[0040] In specific applications, the power switching module can ensure that the charged device is not affected by the wireless charging coil when performing wired charging, and can connect a data interaction device or power source to the data interface socket to achieve separate wired charging, or achieve data interaction while achieving wired charging. Specifically, when the charged device is performing wired charging, the power switching module disconnects the connection between the wireless charging coil and the data interface socket, which can prevent the wireless charging coil from generating an induced current signal when the charged device is performing wired charging, thereby preventing interference to the charged device.

[0041] In specific applications, the data interface female socket, the data interface male socket and the connector correspond to the same data interface type, and can be implemented through any feasible interface that can realize data transmission and charging functions, such as Micro USB interface (Micro Universal Serial Bus), DC interface (Direct Current), USB interface (Universal Serial Bus), USB Type-C interface (Type-CUniversal Serial Bus) and Lighting interface (Lighting).

[0042] In specific applications, the wireless charging coil can be any charging coil that can realize the wireless induction signal receiving function. Its specific type and shape and size can be selected according to actual needs. For example, a pure metal surround charging coil or a surround charging coil containing a magnetic sheet can be selected. Its shape can be plane or cylindrical. In one embodiment, the wireless charging coil can be a wireless charging coil composed of two or more plane surround charging coils.

[0043] In specific applications, the power switching module can be implemented by any circuit or device that can realize the power selection and switching function, which can specifically include an electronic switch and a corresponding circuit structure. As long as the power switching function can be realized, it is not specifically limited in this embodiment. In one embodiment, the power switching module can be a dual power switching module, which can detect the power supply status of two power supplies. When both power supplies have power supply signals (current signals or voltage signals), one of the power supplies is selected for power supply; when only one power supply has a power supply signal, the power supply with the power supply signal is selected for power supply.

[0044] In specific applications, the high-speed data switching module can be implemented by any circuit or device that can realize the data selection and switching functions, which can specifically include an electronic switch and a corresponding circuit structure. As long as the data switching function can be realized, it is not specifically limited in this embodiment. In one embodiment, the high-speed data switching module can include a high-speed CMOS (Complementary Metal Oxide Semiconductor) bus switch and a high-speed SRAM (Static Random Access Memory). The use of a high-speed data switching module chip can enable the circuit to realize high-speed acquisition and processing of signal data simultaneously. In this embodiment, the function of the high-speed data switching module is specifically to collect the induced current signal generated by the voltage signal and the induced current, and then control the data transmission switch according to the induced current signal generated by the voltage signal and the induced current signal.

[0045] In a specific application, the external power source can be any power source connected to the data interface socket via a charging transmission line, for example, a mains power source, a battery or other energy storage device (for example, a power bank) connected to the data interface socket via a charging transmission line.

[0046] In specific applications, the data exchange device can be any terminal device that is connected to the data interface socket through a charging data transmission line and can receive, send, and store data and can also supply power to the charged device, for example, a desktop computer or a laptop computer.

[0047] In a specific application, the device to be charged can be any electronic device with a charging interface, such as a mobile phone, a tablet computer, a personal digital assistant, or a smart bracelet.

[0048] In this embodiment, a charging device is provided that is independent of a charged device and can wirelessly charge a charged device. Through the charging device provided by the embodiment of the present invention, wireless charging of the charged device can be achieved without pre-installing a wireless charging receiver in the charged device. At the same time, by providing a data interface female socket and a data interface male socket connected to the data interface female socket on the charging device, when the charged device is connected to the data interface male socket, it can be directly connected to an external data interaction device or a power supply through the data interface female socket and a data cable, thereby achieving wired charging or data transmission of the charged device, which has high practicality.

[0049] Embodiment 2

[0050] like Figure 2 As shown, in this embodiment, the charging device 10 in the first embodiment further includes a device identification module 17.

[0051] The device identification module 17 is connected to the connector 14 .

[0052] In this embodiment, the device identification module 17 is used to identify the data interface type of the external data interaction device or power supply when the data interface of the data interface socket 11 is connected, and then determine whether the external device of the data interface socket 11 is one of the power supply and the data interaction device, so as to select the corresponding functional channel in the connector 14. When the data interface socket 11 is connected to an external power source, the charged device cannot establish a data transmission connection relationship with the data interaction device, so that data interaction cannot be performed, but the charging device 10 can charge the charged device; when the data interface socket 11 is connected to an external data interaction device, the charged device can establish a data transmission connection relationship with the data interaction device and perform data interaction, and the charging device 10 can also charge the charged device.

[0053] In this embodiment, for some charged devices, it is necessary to identify the device type of the power source or data interaction device connected to the data interface socket before connecting the data interface male socket and the data interface female socket, and a charging device with a device identification module is provided.

[0054] Embodiment 3

[0055] like Figure 2 As shown, in this embodiment, the charging device 10 in the first embodiment further includes a voltage stabilizing module 18 .

[0056] The connection relationship of each component in the charging device 10 provided in this embodiment is as follows:

[0057] The data interface female socket 11, the data interface male socket 12, the power switching module 15 and the high-speed data switching module 16 are all connected to the connector 14, the power switching module 15 is connected to the wireless charging coil 13, the data interface male socket 12 is externally connected to the charged device, and the voltage stabilizing module 18 is connected to the connector 14 and the high-speed data switching module 16.

[0058] In this embodiment, the voltage stabilizing module 18 is used to stabilize the voltage signal output from the connector 14 and then output it to the high-speed data switching module 16 .

[0059] In specific applications, the voltage stabilization module can be implemented by any circuit or device that can realize voltage stabilization processing of voltage signals, which can specifically include a voltage stabilization circuit and a corresponding circuit structure, as long as the voltage stabilization function can be realized, and it is not specifically limited in this embodiment. In one embodiment, the voltage stabilization module can include a linear voltage stabilization chip, and the specific model of the linear voltage stabilization chip is selected according to the input voltage signal, input current, output voltage signal, and output current in the voltage stabilization module, and heat dissipation conditions need to be considered.

[0060] In this embodiment, a charging device with a voltage stabilizing module is provided, which provides an independent power supply to a data switching module while ensuring the stability of the output voltage signal of the independent power supply.

[0061] Embodiment 4

[0062] like Figure 4 and 5 As shown, in this embodiment, the charging device 10 in Embodiment 1 also includes a protective back clip 2, the concave side of the protective back clip 2 matches the back contour of the charged device; the data interface male socket 12 and the data interface female socket 11 are arranged opposite to each other and are both located at one end of the concave side of the protective back clip 2; the data interface female socket 11, the data interface male socket 12, the power switching module 15 and the high-speed data switching module 16 are integrated on the same circuit board 3, and the wireless charging coil 13 is connected to the circuit board 3.

[0063] In this embodiment, the concave side of the protective back clip matches the back contour of the charged device, and the protective back clip is used to place the charged device.

[0064] In specific applications, the size of the protective back clip can be adjusted according to actual needs. For example, in order to facilitate users to remove the charged device from the protective back clip, the concave side of the protective back clip is designed to coincide with the back contour of the charged device, but the area of ​​the protective back clip is larger than the charged device. On the other hand, in order to meet the needs of users to use the charged device during charging, the concave side of the protective back clip is designed to coincide with the back contour of the charged device, and the area of ​​the protective back clip is also the same as that of the charged device, so that the charging device and the charged device are temporarily fixed together by nesting.

[0065] like Figure 4 As shown, in this embodiment, the charging device 10 further includes a cover film 4 , which covers the circuit board 3 and the wireless charging coil 13 and fits with the concave side of the protective back clip 2 .

[0066] Specifically, the cover film is used to fix the circuit board and the wireless charging coil on the protective back clip.

[0067] In specific applications, after the cover film is bonded to the protective back clip, the data interface female socket, data interface male socket, power switching module and high-speed data switching module on the circuit board are encapsulated with the circuit board on the concave side of the protective back clip, which not only prevents the circuit board from scattering from the protective back clip, but also prevents the electronic devices integrated on the circuit board from falling off the circuit board.

[0068] In specific applications, the concave side of the protective back clip can be provided with a structure for anti-slip or enhancing the strength of the back clip, for example, the concave side of the protective back clip is set to a frosted surface, or a strip flange or corresponding structure is set on the concave side of the protective back clip.

[0069] like Figure 4 As shown, in this embodiment, the concave side of the protective back clip 2 is exemplarily shown to be provided with an anti-slip strip-shaped flange.

[0070] In this embodiment, the strip flange is used to increase the friction between the cover film and the protective back clip, thereby increasing the fit between the cover film and the protective back clip, while improving the fixing effect of the protective back clip on the charged device and also improving the strength of the protective back clip.

[0071] In a specific application, the height of the strip flange can be slightly higher than the height of the cover film covering the circuit board, and higher than the height of the wireless charging coil after being attached to the concave side of the protective back clip.

[0072] In a specific application, the circuit board can be fixed to the bottom of the protective back clip in a variety of ways, for example, the circuit board is bonded to the protective back clip by gluing, or is welded to the protective back clip by electric fusion.

[0073] like Figure 4 As shown, in this embodiment, the circuit board 3 is fixed to the bottom of the protective back clip 2 by means of a threaded fastener 5 .

[0074] In this embodiment, the threaded fastener is used to fix the circuit board to the bottom of the protective back clip. The threaded fastener can be a screw, or a combination of a screw and a nut.

[0075] In one embodiment, the charging device further includes a matching wireless charging transmitter;

[0076] Specifically, the wireless charging transmitter is used for an external power source, and when the wireless charging transmitter is located within the induction range of the wireless charging coil, the wireless charging coil generates an induction current signal.

[0077] In a specific application, the wireless charging transmitter includes a base, and the base is provided with a groove that matches the outer contour of the charging device. The shape of the wireless charging transmitter can be any shape that can make the wireless charging coil generate an induced current signal, for example, a circle or a square; the groove of the base of the wireless transmitter can be slightly larger than the outer contour of the charging device, or it can be just the size of the charging device.

[0078] In this embodiment, the wireless charging coil is integrated into the protective back armor, which has both the protection function of the traditional back armor for the charged device and the function of the wireless charging receiver receiving the induced current signal; thereby, a charging device that is independent of the charged device and can wirelessly charge the charged device is provided, so that there is no need to pre-install a wireless charging receiver in the charged device, and wireless charging of the charged device can be achieved; at the same time, by arranging a data interface female socket and a data interface male socket connected to the data interface female socket on the charging device, when the charged device is connected to the data interface male socket, it can be directly connected to an external data interaction device or power supply through the data interface female socket and the data cable, thereby realizing wired charging or data transmission of the charged device, which has high practicality.

[0079] An embodiment of the present invention further provides a charging system, comprising a charged device and the charging device in any one of the above embodiments.

[0080] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A charging device, characterized in that: It includes a data interface female socket, a data interface male socket, a wireless charging coil, a connector, a power switching module and a high-speed data switching module; The data interface female socket, the data interface male socket, the power switching module and the high-speed data switching module are all connected to the connector, the power switching module is connected to the wireless charging coil, the data interface male socket is externally connected to the charged device, and the other end of the high-speed data switching module is connected to the data interface male socket; The wireless charging coil senses the wireless charging signal and generates an induced current signal. When the power switching module detects the induced current signal, the connection between the wireless charging coil and the data interface male socket is connected, and the high-speed data switching module disconnects the connection between the data interface female socket and the data interface male socket, so that when the charged device is wirelessly charged, even if the data interface female socket is connected to an external power source or data exchange device, high-speed data transmission will not be performed, and the charged device is charged through the wireless charging coil; When the data interface female socket is connected to an external data interaction device or a power source, the power switching module disconnects the connection between the wireless charging coil and the data interface male socket, and the high-speed data switching module connects the connection between the data interface female socket and the data interface male socket, charges the charged device through the power source or the data interaction device, and when the data interface female socket is connected to an external data interaction device, data interaction is performed with the charged device through the data interaction device.

2. The charging device according to claim 1, characterized in that: The charging device also includes a device identification module; The device identification module is connected to the connector; When the data interface socket is externally connected to a device, the device identification module identifies the type of the device externally connected to the data interface socket.

3. The charging device according to claim 1, characterized in that: It also includes a voltage regulator module; The voltage stabilizing module is connected to the connector and the high-speed data switching module; The voltage stabilizing module stabilizes the induced current signal, the current signal output by the power supply, or the current signal output by the data interaction device, and then outputs the stabilized current signal to the high-speed data switching module.

4. The charging device according to claim 1, characterized in that: The charging device further comprises a protective back clip, wherein the concave side of the protective back clip matches the back contour of the charged device; The data interface male socket and the data interface female socket are arranged opposite to each other and are both located at one end of the concave side of the protective back clip; The data interface female socket, the data interface male socket, the power switching module and the high-speed data switching module are integrated on the same circuit board, and the charging coil is connected to the circuit board.

5. The charging device according to claim 4, characterized in that: The charging device also includes a cover film, which covers the circuit board and the charging coil and is in contact with the concave side of the protective back clip.

6. The charging device according to claim 5, characterized in that: The concave side of the protective back clip is provided with an anti-slip strip flange.

7. The charging device according to claim 4, characterized in that: The circuit board is fixed to the bottom of the protective back clip by threaded fasteners.

8. The charging device according to any one of claims 1 to 7, characterized in that: The charging device also includes a matching wireless charging transmitter; When the wireless charging transmitter is connected to an external power source and is located within the induction range of the wireless charging coil, the wireless charging coil generates an induction current signal.

9. The charging device according to claim 8, characterized in that: The wireless charging transmitter includes a base, and the base is provided with a groove that matches the outer contour of the charging device.

10. A charging system, characterized in that: The invention comprises a charged device and the charging device according to any one of claims 1 to 9.

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