Docking station with charging function
By designing a dock that includes a power module, a charging protocol module, an HDMI management module, a DC-DC module, a second socket and an HDMI socket, the problem that the existing dock cannot charge the phone is solved, the function of still being charged during video playback is realized, and it supports independent use without the mains socket.
Patent Information
- Application Number
- CN202421937625.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The existing dock cannot charge the phone during video playback because the phone interface is already occupied by the dock.
A charging function dock is designed, including a power module, a charging protocol module, an HDMI management module, a DC-DC module, a second socket and an HDMI socket. The charging protocol handshake with the mobile phone is completed through the charging protocol module, and the DC-DC module is used to provide DC power supply to realize the charging function of the mobile phone.
It can still charge the phone when the mobile phone video is played, ensuring that the phone is fully charged, and at the same time, it supports being disconnected from the mains socket and powered by the mobile phone or laptop.
Smart Images
Figure CN222966747U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a docking station suitable for electronic products, specifically a docking station capable of charging electronic products. Background Art
[0002] Existing docking stations are devices for expanding the data interfaces of electronic products or converting interface types. The initial docking stations usually include USB interfaces and data memory card interfaces. Connecting a computer to the docking station allows reading and writing of data memory cards through the docking station and also enables operation of USB flash drives connected to the docking station.
[0003] Subsequently, the functions of docking stations have been gradually enhanced. Some docking stations are provided with type-c interfaces and can be connected to smartphones. The docking stations are also provided with HDMI interfaces, i.e., high-definition multimedia interfaces, which can be connected to TVs or monitors. After connecting a mobile phone and a TV to the docking station, the video of the mobile phone can be played on the TV through the docking station. Watching videos on a large screen can enhance the user experience, but the battery life of the mobile phone often becomes a bottleneck. Since the mobile phone interface has been occupied by the docking station, it cannot be charged during video playback. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a docking station with a charging function, which can charge the connected mobile phone while providing the functions of the docking station.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] The docking station with a charging function includes a power module, a charging protocol module, an HDMI management module, a DC-DC module, a second socket, and an HDMI socket;
[0007] The power module is used to obtain commercial power and convert it into direct current suitable for electronic products. The second socket is used to connect electronic products, and the HDMI socket is used to connect devices supporting HDMI;
[0008] The charging protocol module, the HDMI management module, and the second socket are sequentially connected. The HDMI management module is used to receive the handshake signal of the electronic product connected to the second socket and forward it to the charging protocol module; the HDMI management module receives the handshake signal of the charging protocol module and forwards it to the electronic product connected to the second socket; enabling the charging protocol module to complete the charging protocol handshake with the electronic product connected to the second socket;
[0009] The power module, the charging protocol module, and the second socket are sequentially connected. The charging protocol module is used to provide adapted direct current power supply for the electronic product connected to the second socket based on the charging protocol handshake situation;
[0010] The input end of the DC-DC module is connected to the path where the charging protocol module supplies power to the second socket, and the output end of the DC-DC module is connected to the HDMI management module, so that the DC-DC module can obtain the direct current output by the charging protocol module and supply power to the HDMI management module after DC voltage conversion;
[0011] The output end of the DC-DC module is also connected to the HDMI socket to provide direct current power supply for the devices connected to the HDMI socket; the second socket, the HDMI management module, and the HDMI socket are sequentially connected, so that the HDMI management module can obtain data from the electronic products connected to the second socket, and after decoding the data, transmit it to the devices connected to the HDMI socket.
[0012] Furthermore, it also includes a first socket for connecting electronic products. The power supply module, the charging protocol module, and the first socket are sequentially connected, so that the charging protocol module can perform a charging protocol handshake with the electronic products connected to the first socket, and provide adapted direct current power supply for the electronic products connected to the first socket based on the charging protocol handshake situation.
[0013] Furthermore, it also includes a first switching tube, a second switching tube, a third switching tube, and a fourth switching tube;
[0014] The first switching tube is located on the path where the charging protocol module supplies power to the first socket, and the charging protocol module is connected to the first switching tube to control the on / off of the first switching tube;
[0015] The second switching tube, the third switching tube, and the fourth switching tube are sequentially connected on the path where the charging protocol module supplies power to the second socket; the charging protocol module is connected to the second switching tube to control the on / off of the second switching tube; the HDMI management module is connected to the third switching tube to control the on / off of the third switching tube; the HDMI management module is connected to the fourth switching tube to control the on / off of the fourth switching tube;
[0016] The input end of the DC-DC module is connected to the power supply path between the third switching tube and the fourth switching tube. The third switching tube and the fourth switching tube are PMOS tubes, and the gates of the third switching tube and the fourth switching tube are both at low level in the initial state.
[0017] Furthermore, it also includes a voltage stabilizing module, which is located on the connection path between the output end of the DC-DC module and the HDMI management module, and is used to stabilize the output voltage of the DC-DC module and then transmit it to the HDMI management module.
[0018] Further, it also includes a USB-A socket. The output end of the DC-DC module is also connected to the USB-A socket for powering the devices connected to the USB-A socket. The USB-A socket is connected to the second socket for establishing an electrical connection between the devices connected to the USB-A socket and the devices connected to the second socket.
[0019] Further, the second socket is a type-c socket.
[0020] The beneficial effects of the present utility model are as follows: For the docking station of this solution, its HDMI management module can forward protocol handshake signals, enabling the power module and the charging protocol module to charge the connected mobile phone. The HDMI management module can also decode the video data output by the mobile phone and send it to the display device connected to the HDMI socket. The mobile phone can play videos on the display device through this docking station, and at the same time, the docking station can charge the mobile phone to ensure sufficient battery power of the mobile phone. This docking station also supports the usage scenario of being powered by the mobile phone or laptop computer instead of being connected to the mains socket. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the functional modules of an embodiment of the docking station of this solution; DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following further describes the present utility model in conjunction with the drawings and embodiments. Typically, it can be:
[0023] The docking station with charging function includes a power module, a charging protocol module, an HDMI management module, a DC-DC module, a second socket, and an HDMI socket;
[0024] The power module is used to obtain mains power and convert it into direct current suitable for electronic products. The second socket is used to connect electronic products, and the HDMI socket is used to connect devices supporting HDMI;
[0025] The charging protocol module, the HDMI management module, and the second socket are connected in sequence, so that the HDMI management module receives the handshake signal of the electronic product connected to the second socket and forwards it to the charging protocol module; the HDMI management module receives the handshake signal of the charging protocol module and forwards it to the electronic product connected to the second socket; enabling the charging protocol module to complete the charging protocol handshake with the electronic product connected to the second socket;
[0026] The power module, the charging protocol module, and the second socket are connected in sequence, so that the charging protocol module provides adapted direct current power supply for the electronic product connected to the second socket based on the charging protocol handshake situation;
[0027] The input end of the DC-DC module is connected to the path where the charging protocol module supplies power to the second socket, and the output end of the DC-DC module is connected to the HDMI management module, so that the DC-DC module can obtain the direct current output by the charging protocol module and supply power to the HDMI management module after DC voltage conversion;
[0028] The output end of the DC-DC module is also connected to the HDMI socket to provide direct current power supply for the devices connected to the HDMI socket; the second socket, the HDMI management module and the HDMI socket are sequentially connected, so that the HDMI management module can obtain data from the electronic products connected to the second socket, and after decoding the data, transmit it to the devices connected to the HDMI socket.
[0029] As Figure 1 shown, the docking station of this solution includes functional parts such as a power module, a charging protocol module, an HDMI management module, a DC-DC module, a second socket and an HDMI socket.
[0030] The power module is used to obtain the commercial power and then convert and output the direct current suitable for electronic products. For example, the power module is connected to the socket through a plug or a cable to obtain the commercial power, and then converts and outputs 5V, 9V or 12V direct current. The specific structure of the power module can refer to various types of chargers and switching power supply circuits in the prior art.
[0031] The second socket is used to connect electronic products, such as mobile phones, tablets, laptops and other devices. Generally, the second socket can be a universal socket such as USB-A or type-c.
[0032] The HDMI socket is used to connect devices that support HDMI, such as TVs, computer monitors, etc.
[0033] As Figure 1 shown, the charging protocol module, the HDMI management module and the second socket are sequentially connected. When an electronic product, such as a mobile phone, is connected to the second socket, the HDMI management module will forward the signal of the charging protocol handshake between the charging protocol module and the mobile phone.
[0034] The HDMI management module forwards the handshake signal sent by the mobile phone to the charging protocol module, and the HDMI management module forwards the handshake signal sent by the charging protocol module to the mobile phone, so that the charging protocol module and the mobile phone complete the charging protocol handshake and identify the charging specifications required by the mobile phone.
[0035] As Figure 1 shown, the power module, the charging protocol module and the second socket are sequentially connected. The power module converts the commercial power into low-voltage direct current suitable for electronic products, and the charging protocol module controls the power supply to the second socket based on the charging protocol handshake situation, that is, charges the connected mobile phone based on the identified charging specifications of the mobile phone.
[0036] The DC-DC module is used for DC voltage conversion, that is, the DC-DC module obtains the direct current output by the charging protocol module and supplies power to the HDMI management module after DC voltage conversion;
[0037] Typically, if the electronic product connected to the second socket only supports slow charging, after protocol handshake, the charging protocol module outputs 5V direct current. Then, in addition to being delivered to the second socket, the 5V direct current is also delivered to the DC-DC module. At this time, the DC-DC module can directly deliver the 5V direct current to the HDMI management module for power supply.
[0038] If the electronic product connected to the second socket supports fast charging, after protocol handshake, the charging protocol module may output 9V direct current. In addition to being delivered to the second socket, the 9V direct current is also delivered to the DC-DC module. At this time, the DC-DC module can step down the 9V direct current to 5V and deliver it to the HDMI management module for power supply.
[0039] To improve the power supply stability for the HDMI management module, a voltage stabilizing module may also be included. The voltage stabilizing module is located on the connection path between the output end of the DC-DC module and the HDMI management module and is used to supply the output electricity of the DC-DC module to the HDMI management module after voltage stabilization. The voltage stabilizing module can be a voltage stabilizing diode or a circuit with a similar function.
[0040] The output end of the DC-DC module is also connected to the HDMI socket. Similarly to the above, it is used to supply power to the device connected to the HDMI socket, such as providing 5V power supply to the HDMI socket.
[0041] Such as Figure 1 As shown, the second socket, the HDMI management module, and the HDMI socket are sequentially connected and can be used for video data transmission. Typically, for example, a mobile phone is connected to the second socket and a TV is connected to the HDMI socket. When the mobile phone activates the external screen mirroring function, the played video data can be delivered to the HDMI management module. After the HDMI management module decodes the data, it is delivered to the TV, and the video is played on the TV, which realizes the function of the docking station.
[0042] As mentioned above, the voltage module and the charging protocol module of this docking station can simultaneously charge the mobile phone connected to the second socket. Thus, the battery life problem during long-term use of the mobile phone can be solved.
[0043] The docking station may also have more sockets. For example, it may further include a first socket for connecting an electronic product. The power supply module, the charging protocol module, and the first socket are sequentially connected, used for the charging protocol module to perform a charging protocol handshake with the electronic product connected to the first socket, and supply adapted direct current power to the electronic product connected to the first socket based on the charging protocol handshake situation.
[0044] The first socket serves as a simple charging socket. When an electronic product such as a mobile phone is connected and the charging protocol handshake is completed with the charging protocol module, the power module and the charging protocol module provide adapted direct current power supply to the mobile phone according to the protocol handshake situation, that is, charge the mobile phone.
[0045] The docking station of the foregoing various solutions needs to be connected to the mains for use, that is, the power module receives the mains and converts it into direct current to supply power to each functional part.
[0046] More preferably, it may further include a first switching tube, a second switching tube, a third switching tube, and a fourth switching tube;
[0047] The first switching tube is located on the path where the charging protocol module supplies power to the first socket, and the charging protocol module is connected to the first switching tube to control the on / off of the first switching tube;
[0048] The second switching tube, the third switching tube, and the fourth switching tube are sequentially connected on the path where the charging protocol module supplies power to the second socket; the charging protocol module is connected to the second switching tube to control the on / off of the second switching tube; the HDMI management module is connected to the third switching tube to control the on / off of the third switching tube; the HDMI management module is connected to the fourth switching tube to control the on / off of the fourth switching tube;
[0049] The input end of the DC-DC module is connected to the power supply path between the third switching tube and the fourth switching tube. The third switching tube and the fourth switching tube are PMOS tubes, and the gates of the third switching tube and the fourth switching tube are both at low level in the initial state.
[0050] In this preferred solution, the docking station can receive power supply from the device connected to the second socket.
[0051] Specifically, as Figure 1 shown, the first switching tube is located on the path where the charging protocol module supplies power to the first socket, and the charging protocol module controls the on / off of the first switching tube; when in use, for example, when a mobile phone is connected to the first socket and the charging protocol handshake is completed between the mobile phone and the charging protocol module, the charging protocol module controls the first switching tube to turn on, so that the power supply path for the power module and the charging protocol module to supply power to the first socket is conducted to charge the mobile phone.
[0052] The second switching tube, the third switching tube, and the fourth switching tube are sequentially connected on the path where the charging protocol module supplies power to the second socket. The charging protocol module controls the on / off of the second switching tube, and the HDMI management module controls the on / off of the third switching tube and the fourth switching tube.
[0053] The input terminal of the DC-DC module is connected to the power supply path between the third switching transistor and the fourth switching transistor, obtains DC power supply from this connection point, and then supplies power to the HDMI management module after DC voltage conversion. The third switching transistor and the fourth switching transistor are PMOS transistors, and the gates of the third switching transistor and the fourth switching transistor are both at low level in the initial state. For example, the gate can be grounded through a pull-down resistor to make its initial state at low level, that is, the third switching transistor and the fourth switching transistor will be in the conducting state initially.
[0054] More specifically, as Figure 1 shown, for example, when the docking station is plugged into the mains socket, that is, the power module obtains mains power supply, converts and outputs direct current, the charging protocol module obtains power supply, and controls the second switching transistor to conduct. The third switching transistor and the fourth switching transistor are PMOS transistors, and the gates of the third switching transistor and the fourth switching transistor are both at low level in the initial state and are also in the conducting state. Then the DC-DC module obtains power supply, supplies power to the HDMI management module after DC voltage conversion, the HDMI management module gets powered on and works. Since no device is detected inserted into the second socket, a high level is sent to the gate of the fourth switching transistor to turn off the fourth switching transistor.
[0055] If a mobile phone is plugged into the second socket, the mobile phone sends a charging protocol handshake signal to the HDMI management module. The HDMI management module forwards the handshake signal to the charging protocol module. The handshake signal returned by the charging protocol module is forwarded by the HDMI management module to the mobile phone, and the charging protocol module and the mobile phone complete the protocol handshake. Subsequently, appropriate direct current is delivered to the second socket, and the HDMI management module turns on the fourth switching transistor, that is, charges the mobile phone. At the same time, the mobile phone can transmit video data to the HDMI management module, which is decoded and sent to the device connected to the HDMI socket, such as a TV set, and the video is played on the TV set.
[0056] If the docking station is not plugged into the mains socket, that is, when the power module does not obtain mains power supply, for example, the second socket is a type-c socket, and a laptop computer is plugged into the second socket, the laptop computer supplies power to the second socket.
[0057] At this time, the charging protocol module does not obtain power supply. The third switching transistor and the fourth switching transistor are PMOS transistors, and the gates of the third switching transistor and the fourth switching transistor are both at low level in the initial state and are in the conducting state. The output power of the laptop computer passes through the fourth switching transistor and is delivered to the DC-DC module, which supplies power to the HDMI management module after DC voltage conversion, and the HDMI management module gets powered on and works.
[0058] The laptop computer can transmit video data to the HDMI management module, which is decoded and sent to the device connected to the HDMI socket, such as a TV set, and the video is played on the TV set.
[0059] In this preferred solution, the docking station can be used independently without being connected to the mains socket; it can also be connected to the mains socket and used as a docking station with a charging function.
[0060] Preferably, it may further include a USB-A socket. The output end of the DC-DC module is also connected to the USB-A socket for supplying power to the devices connected to the USB-A socket; the USB-A socket is connected to the second socket for establishing an electrical connection between the devices connected to the USB-A socket and the devices connected to the second socket.
[0061] For example, a computer can be connected to the second socket and a USB flash drive can be connected to the USB-A socket, enabling the computer to access the USB flash drive.
[0062] More specifically, the charging protocol module of this solution can adopt the IP2738 solution of Ingenic Semiconductor Co., Ltd., the HDMI management module can adopt the GSV2201E chip solution of Keystone CoolLink Microelectronics Co., Ltd., the CS5366 chip solution of Jirui Zhiyuan Technology Co., Ltd., or other chips or circuits with similar functions.
Claims
1. A docking station with a charging function, including a power module, a charging protocol module, an HDMI management module, a DC-DC module, a second socket and an HDMI socket; The power module is used to obtain AC power and convert and output direct current suitable for electronic products. The second socket is used to connect to electronic products, and the HDMI socket is used to connect to devices supporting HDMI. It is characterized in that The charging protocol module, the HDMI management module and the second socket are connected in sequence, and the HDMI management module receives a handshake signal of the electronic product connected to the second socket and forwards it to the charging protocol module; The HDMI management module receives the handshake signal of the charging protocol module and forwards it to the electronic product connected to the second socket; so that the charging protocol module and the electronic product connected to the second socket complete the charging protocol handshake; The power module, the charging protocol module and the second socket are connected in sequence, and the charging protocol module is used to provide an adapted DC power supply for the electronic product connected to the second socket based on the charging protocol handshake situation; The input end of the DC-DC module is connected to the path where the charging protocol module supplies power to the second socket, and the output end of the DC-DC module is connected to the HDMI management module, so that the DC-DC module obtains the direct current output by the charging protocol module and supplies power to the HDMI management module after direct current transformation; The output end of the DC-DC module is also connected to the HDMI socket, which is used to provide DC power supply for the device connected to the HDMI socket; the second socket, the HDMI management module and the HDMI socket are connected in sequence, and the HDMI management module obtains data from the electronic product connected to the second socket, and after decoding the data, transmits it to the device connected to the HDMI socket.
2. The docking station with charging function as claimed in claim 1, characterized in that: It also includes a first socket for connecting to an electronic product. The power module, the charging protocol module and the first socket are connected in sequence, and the charging protocol module and the electronic product connected to the first socket perform a charging protocol handshake, and based on the charging protocol handshake situation, provide an adaptive DC power supply for the electronic product connected to the first socket.
3. The docking station with charging function as claimed in claim 2, characterized in that: It also includes a first switch tube, a second switch tube, a third switch tube and a fourth switch tube; The first switch tube is located on the path for the charging protocol module to supply power to the first socket, and the charging protocol module is connected to the first switch tube to control the on and off of the first switch tube; The second switch tube, the third switch tube and the fourth switch tube are sequentially connected to the path of the charging protocol module supplying power to the second socket; the charging protocol module is connected to the second switch tube for controlling the on and off of the second switch tube; the HDMI management module is connected to the third switch tube for controlling the on and off of the third switch tube; the HDMI management module is connected to the fourth switch tube for controlling the on and off of the fourth switch tube; The input end of the DC-DC module is connected to the power supply path between the third switch tube and the fourth switch tube. The third switch tube and the fourth switch tube are PMOS tubes, and the gates of the third switch tube and the fourth switch tube are both at low level in the initial state.
4. The docking station with charging function as claimed in claim 1, characterized in that: It also includes a voltage stabilizing module, which is located on the connection path between the output end of the DC-DC module and the HDMI management module, and is used to stabilize the output power of the DC-DC module and transmit it to the HDMI management module.
5. The docking station with charging function as claimed in claim 1, characterized in that: It also includes a USB-A socket, and the output end of the DC-DC module is also connected to the USB-A socket, which is used to power the device connected to the USB-A socket; the USB-A socket is connected to the second socket, which is used to establish an electrical connection between the device connected to the USB-A socket and the device connected to the second socket.
6. The docking station with charging function as claimed in claim 1, characterized in that: The second socket is a type-c socket.