Multifunctional switching module and multifunctional switching system of earphone charging box

Abstract

The utility model relates to the technical field of communication equipment accessories, and discloses a multifunctional switching module and a multifunctional switching system of an earphone charging box, the multifunctional switching module comprises a connector male head, a connector female head and a serial port board interface, the connector female head is connected with the connector male head through a quick charging port, and the serial port board interface is connected with the connector male head through a quick charging port. The quick charging port is used for quickly charging the earphone charging box, and the serial port board interface is connected to the first mode configuration port and the second mode configuration port of the connector female head and is used for transmitting a log file of the earphone charging box. According to the multifunctional switching module provided by the embodiment of the invention, a transmission channel and a charging line required for acquiring the log file of the earphone charging box are realized on the same integrated accessory, and charging of the earphone charging box and capturing of the log file of the earphone charging box are realized at the same time only by using an independent interface of the earphone charging box; therefore, the operation process is simplified, and the use convenience and the operation efficiency of the user are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of communication equipment accessories, in particular to a multifunctional switching module and a multifunctional switching system of an earphone charging box. Background Art

[0002] In the related art, a pair of Bluetooth headsets will be equipped with a corresponding headset charging box. For the working status information of the headset charging box, it is necessary to capture the log file inside the charging box system, which is often achieved by connecting the charging box and the reading device through a serial port line. However, the headset charging box is only equipped with one interface. If you want to charge the headset charging box, burn the program, or obtain different working status operations, you need to change the corresponding connection line to connect the headset charging box and the external device, and the charging box can only perform the corresponding operation one way. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a multi-function switching module and a multi-function switching system for an earphone charging box, which can realize multi-function operations of a Bluetooth earphone charging box using only one module.

[0004] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present application proposes a multifunctional adapter module for an earphone charging box, comprising:

[0005] A male connector, a female connector and a serial port board interface; wherein the female connector and the male connector are connected via a fast charging port, and the fast charging port is used to quickly charge the earphone charging box;

[0006] The female connector has a first mode configuration port and a second mode configuration port, and the serial port board interface is connected to the first mode configuration port and the second mode configuration port of the female connector; wherein the serial port board interface is used to transmit the log file of the earphone charging box;

[0007] The female connector is used to connect to the earphone charging box, and the male connector is used to connect to a power source.

[0008] The multi-function adapter module of the earphone charging box proposed in the embodiment of the present application has at least the following beneficial effects: by connecting the serial port board interface with the first mode configuration and the second mode configuration ports of the connector female head, the transmission channel and the charging route required for obtaining the log file of the earphone charging box are realized on the same integrated accessory; when the earphone charging box has only one interface, the connector male head and the serial port board interface can be simultaneously connected to other devices, thereby realizing charging of the earphone charging box and capturing of the log file of the earphone charging box at the same time; compared with the technical solution of using different transmission lines respectively to realize charging and serial port file transmission, the multi-function adapter module provided in the embodiment of the present application can simplify the operation process, thereby improving the user's convenience and efficiency.

[0009] In some embodiments, the male connector has a first power bus port, a first positive differential port, a first negative differential port, a first ground port, a first configuration channel port, and a second configuration channel port; the female connector has a second power bus port, a second positive differential port, a second negative differential port, a second ground port, a third configuration channel port, and a fourth configuration channel port;

[0010] The fast charging port includes a power configuration unit and a power transmission unit;

[0011] The power configuration unit is used to connect the first configuration channel port to the third configuration channel port, connect the second configuration channel port to the fourth configuration channel port, connect the first positive differential port to the second positive differential port, and connect the first negative differential port to the second negative differential port;

[0012] The power transmission unit is used to connect the first power bus port to the second power bus port, and to connect the first ground port to the second ground port.

[0013] In some embodiments, the line in the power transmission unit for connecting the first power bus port to the second power bus port is a target line, and the power transmission unit is provided with an electrostatic discharge protector, and the electrostatic discharge protector is connected to the target line.

[0014] In some embodiments, the power transmission unit is further provided with a filter capacitor, and the filter capacitor is connected to the target line.

[0015] In some embodiments, the multi-functional adapter module also includes a first pull-down resistor and a second pull-down resistor, one end of the first pull-down resistor is respectively connected to the first configuration channel port and the third configuration channel port, and the other end of the first pull-down resistor is grounded; one end of the second pull-down resistor is respectively connected to the second configuration channel port and the fourth configuration channel port, and the other end of the second pull-down resistor is grounded, and the first pull-down resistor and the second pull-down resistor are used to output power.

[0016] In some embodiments, the multi-functional adapter module also includes an auxiliary burning button, one end of the auxiliary burning button is connected to the first mode configuration port, and the other end of the auxiliary burning button is connected to the second mode configuration port; wherein the auxiliary burning button is configured to: when the auxiliary burning button is triggered, the first mode configuration port and the second mode configuration port are connected.

[0017] In some embodiments, at least one data transmission unit is included between the male connector and the female connector; the multifunctional adapter module also includes an extended burning interface, which is connected to the data transmission unit and is used to connect an external chip.

[0018] A second aspect of the embodiments of the present application provides a multifunctional switching system, the system comprising a computer device, a serial port conversion module, an earphone charging box, a power supply, and the multifunctional switching module of the earphone charging box as described in the first aspect;

[0019] Among them, the computer device is connected to the serial port conversion module, and the serial port conversion module is connected to the headphone charging box through the multi-functional adapter module to burn the Bluetooth chip of the headphone charging box and obtain the log file of the headphone charging box, and the headphone charging box is connected to the power supply through the multi-functional adapter module to charge the headphone charging box.

[0020] The multifunctional adapter system proposed in the embodiment of the present application has at least the following beneficial effects: the earphone charging box is respectively connected to the computer device, the serial port conversion module and the power supply through the multifunctional adapter module, thereby realizing the charging of the earphone charging box and the data transmission with the computer device, the charging of the earphone charging box and the capture of log files at the same time, and the ability to burn the earphone charging box, thereby improving the overall working efficiency of the system.

[0021] In some embodiments, the serial port conversion module is a FT232RL chip.

[0022] In some embodiments, the earphone charging box has a charging control chip, and the charging control chip charges the earphone charging box according to the USBPD charging protocol.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 An optional structural connection diagram of a multifunctional adapter module of an earphone charging box provided in an embodiment of the utility model;

[0026] Figure 2 Another optional structural connection diagram of the multifunctional adapter module of the earphone charging box provided in the embodiment of the utility model;

[0027] Figure 3 A connection relationship diagram of a multifunctional switching system provided in an embodiment of the utility model.

[0028] Figure markings: male connector 1; female connector 2; serial port board interface 3; fast charging port 4; power configuration unit 41; power transmission unit 42; auxiliary burning button 5; extended burning interface 6; charging box interface 7; overvoltage protection circuit 8; Bluetooth chip 9; charging control chip 10; battery 11. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] First, some terms involved in this utility model are explained:

[0035] USB PD fast charging protocol (USB Power Delivery) is a charging protocol developed by the USB Importers Forum (USB-IF). The maximum output power supported by the USB PD protocol can reach 240W (in PD3.1 version). The protocol allows devices and chargers to conduct fine power negotiation in order to provide the charging voltage and current that best suits the device, while supporting a variety of different voltage levels, including 5V, 9V, 12V, 15V and 20V, etc., as well as the extended power capability introduced in the PD3.1 version, which can provide up to 48V voltage to meet the charging needs of various types of devices.

[0036] Log files: Log files are detailed records of various events and operations that occur during the operation of a system or application. These records usually include timestamps, event descriptions, error messages, etc., to facilitate problem tracking and system management.

[0037] In the existing related technologies, a pair of Bluetooth headsets will be equipped with a corresponding headset charging box. If you want to obtain the working status information of the headset charging box, you usually need to read the log file of the charging box system, and grabbing the log file often uses a serial port line. If you want to charge the headset charging box, you need to use a charging cable. However, the headset charging box is only equipped with one interface. Therefore, if you want to charge the headset charging box, burn a program, or obtain different working status operations, you need to change the corresponding connection line to connect the headset charging box and the external device. The headset charging box can only perform the corresponding operation one way, so the existing headset charging box cannot capture the log file while charging.

[0038] In addition, when the chip inside the charging box is burned multiple times, it is necessary to connect and disconnect the two specific pins of the chip to make the chip enter the state to be burned. Usually, flying wires are used to lead out specific pins to connect and disconnect to complete the burning operation, but this makes the burning operation very cumbersome and greatly reduces the efficiency of burning.

[0039] Based on this, a multifunctional adapter module of an earphone charging box is provided in the embodiment of the present application. Figure 1 , Figure 1 An optional structural connection diagram of a multi-function adapter module provided for an embodiment of the present application, including a male connector 1, a female connector 2 and a serial port board interface 3, wherein the female connector 2 is used to connect to the earphone charging box, and the male connector 1 is used to connect to the power supply, wherein the male connector can be a 24-pin TYPE-C male connector, and the female connector can be a 24-pin TYPE-C female connector.

[0040] The female connector 2 is connected to the male connector 1 through a fast charging port 4, and the fast charging port 4 is used to quickly charge the earphone charging box. The fast charging port 4 includes a power configuration unit 41 and a power transmission unit 42. It should be noted that the power configuration unit 41 can perform data transmission and communication between the male connector and the female connector, and select the power transmission specification according to the fast charging protocol. For example, when using the PD fast charging protocol, 5V, 9V, 12V, 15V and 20V can be selected as the final charging power specifications, and the power transmission unit 42 transmits power with the selected power specification.

[0041] In some embodiments, please refer to Figure 2 , Figure 2It is another optional structural connection diagram of the multifunctional adapter module of the earphone charging box provided in the embodiment of the present application. The power configuration unit 41 includes five connection lines, namely: the CC1 line formed by connecting the first configuration channel port and the third configuration channel port, the CC2 line formed by connecting the second configuration channel port and the fourth configuration channel port, the DP line formed by connecting the first positive differential port and the second positive differential port, and the DN line formed by connecting the first negative differential port and the second negative differential port. Among them, the first configuration channel port, the second configuration channel port, the first positive differential port, and the first negative differential port correspond to the CC1 port, CC2 port, DP port and DN port of the connector male head 1 respectively. The third configuration channel port, the fourth configuration channel port, the second positive differential port, and the second negative differential port correspond to the CC1 port, CC2 port, DP port and DN port of the connector female head 2 respectively.

[0042] It should be noted that in the 24-pin TYPE-C USB cable, DP (i.e. D+) and DN (i.e. D-) are used for data transmission. In this way, the connection can be made without distinguishing whether the TYPE-C USB cable is plugged in forward or reverse. The TYPE-C USB cable can work normally when plugged in forward or reverse.

[0043] In some embodiments, the power transmission unit 42 includes: a VBUS line formed by connecting the first power bus port and the second power bus port, and a first GND line formed by connecting the first ground port and the second ground port. The first power bus port is the VBUS port of the male connector 1, the second power bus port is the VBUS port of the female connector 2, the first ground port is the GND port of the male connector 1, and the second ground port is the GND port of the female connector. The power transmission unit is also provided with an electrostatic discharge protector ESD1 (Electro-Static Discharge), and the connection line between the first power bus port and the second power bus port is used as the target line. One end of the electrostatic discharge protector ESD1 is connected to the target line, and the other end is grounded. It can be understood that the electrostatic discharge protector ESD1 can protect the electronic components in the circuit from being damaged by electrostatic discharge. In some embodiments, the electrostatic discharge protector ESD1 can be a transient voltage suppression diode to protect the components in the circuit from being damaged by instantaneous surge pulse voltage.

[0044] In some embodiments, a filter capacitor C1 is also provided in the power transmission unit, one end of the filter capacitor C1 is connected to the connection line between the first power bus port and the second power bus port, that is, the above-mentioned target line, and the other end is grounded. It can be understood that the filter capacitor C1 can achieve the function of filtering and stabilizing the output voltage of the power supply.

[0045] In some embodiments, the multifunctional adapter module also includes a first pull-down resistor R1 and a second pull-down resistor R2, one end of the first pull-down resistor R1 is connected to the connection line between the first configuration channel port and the third configuration channel port, and the other end is grounded. One end of the second pull-down resistor R2 is connected to the connection line between the second configuration channel port and the fourth configuration channel port, and the other end is also grounded. It should be noted that the first pull-down resistor R1 and the second pull-down resistor R2 are to ensure that the power adapter that supports a specific fast charging protocol outputs power. When a device to be charged is connected, the first pull-down resistor R1 and the second pull-down resistor R2 pull down the voltage of the connection line between the CC1 port of the male connector 1 and the CC1 port of the female connector 2, and the voltage of the connection line between the CC2 port of the male connector 1 and the CC2 port of the female connector 2, thereby determining that the device to be charged is one end that receives electric energy. If the first pull-down resistor R1 and the second pull-down resistor R2 are not connected, it may not be possible to confirm which section receives electric energy, resulting in the adapter being unable to output power.

[0046] In some embodiments, the female connector 2 has a first mode configuration port and a second mode configuration port, and the first mode configuration port and the second mode configuration port correspond to the SBU1 port and the SBU2 port of the female connector 2, respectively. The serial port board interface 3 is connected to the SBU1 port, the SBU2 port and another GND port of the female connector 2, wherein the SBU1 port of the female connector 2 is also connected to the SBU1 port of the male connector 1 to form an SBU1 line, the SBU2 port of the female connector 2 is also connected to the SBU2 port of the male connector 1 to form an SBU2 line, and the other GND port of the female connector 2 is also connected to the other GND port of the male connector 1 to form a second GND line. Figure 2 The GND line not framed by the dotted line is the second GND line. The serial port board interface is used to transmit the log file of the headphone charging box. The log file of the headphone charging box can read the working status information of the headphone charging box, and the working status information can be the power of the headphone charging box, hand touch screen information, chip operation status, charging status, charging power, chip temperature and other information. The embodiment of the present application does not limit the specific content of the working status information.

[0047] In some embodiments, the multifunctional adapter module is further provided with an auxiliary burning button 5, the first end of the auxiliary burning button 5 is connected to the first mode configuration port, that is, connected to the SBU1 line, and the second end of the auxiliary burning button 5 is connected to the second mode configuration port, that is, connected to the SBU2 line.

[0048] It should be noted that the auxiliary burning button 5 can also be a switch in other forms. The headphone charging box has a Bluetooth chip inside. For example, the Bluetooth chip can be an ATS3085C chip. The UART_TX pin of the Bluetooth chip is connected to the SBU1 line, and the UART_RX pin of the Bluetooth chip is connected to the SBU2 line. When the chip needs to be burned multiple times, a serial port conversion module is connected to the serial port board interface to realize serial port communication with an external computer device. Only by pressing a button, the SBU1 line is connected and disconnected from the SBU2 line, so that the Bluetooth chip enters the burning mode, thereby ensuring that subsequent programs can be burned to the chip normally. If the Bluetooth chip is a blank chip that has not been burned with a program, the first burning operation can be performed directly without pressing a button. The auxiliary burning button 5 is integrated into the multi-function module proposed in the embodiment of the present application, so that the headphone charging box only needs to insert the integrated multi-function module, and the Bluetooth chip can enter the burning mode by simply pressing a button. Compared with the solution of the SBU1 port and the SBU2 port of the female connector 2 of the flying wire lead, the corresponding operation can be simplified and the burning efficiency can be improved.

[0049] In some embodiments, the multi-function adapter module also includes an extended burning interface 6, and at least one data transmission unit is included between the male connector 1 and the female connector 2. For example, a pair of lines formed by connecting the TX1+ port and TX1- port of the female connector 2 with the TX1+ port and TX1- port of the male connector 1 respectively can be a data transmission unit. Similarly, the data transmission unit can be a pair of lines formed by connecting the TX2+ port and TX2- port of the female connector 2 with the TX2+ port and TX2- port of the male connector 1 respectively, or a pair of lines formed by connecting the RX1+ port and RX1- port of the female connector 2 with the RX1+ port and RX1- port of the male connector 1 respectively, and a pair of lines formed by connecting the RX2+ port and RX2- port of the female connector 2 with the RX2+ port and RX2- port of the male connector 1 respectively. The extended burning interface 6 is connected to the data transmission unit. As a reserved interface, the extended burning interface 6 can be connected to other devices or chips besides the headphone charging box, so that the multi-function module proposed in the embodiment of the present application can be suitable for burning more chips. For example, the DA14195 chip with USB playback function can be connected through the extended burning interface 6, and this data transmission unit (for example, the RX2+ port and RX2- port of the female connector 2 are respectively connected to the RX2+ port and RX2- port of the male connector 1 to form a pair of lines) is selected for burning the transmission data channel. The specific connection method can be adaptively modified according to the actual application scenario, and the embodiment of the present application is not limited to this.

[0050] It is understandable that the serial port board interface 3 and the extended burning interface 6 can be pins or sockets with pins.

[0051] A multifunctional adapter module for a Bluetooth headset charging box provided in an embodiment of the present application connects the serial port board interface with the first mode configuration and second mode configuration ports of the female connector, so that the transmission channel and charging route required for obtaining the log file of the headset charging box are implemented on the same integrated accessory. In the case that the headset charging box has only one interface, the male connector and the serial port board interface can be simultaneously connected to other devices, thereby realizing charging the headset charging box and capturing the log file of the headset charging box at the same time. In addition, the multifunctional adapter module provided in the embodiment of the present application can also be used for data transmission and program burning, thereby simplifying the operation process and further improving the user's convenience and efficiency.

[0052] A multifunctional adapter system is also provided in an embodiment of the present application, including: a computer device, a serial port conversion module, an earphone charging box, a power supply, and a multifunctional adapter module of the earphone charging box as described above.

[0053] Please refer to Figure 3 , Figure 3 It is a connection relationship diagram of a multifunctional adapter system provided in an embodiment of the present application. The male connector 1 is connected to an external power supply, the female connector 2 is connected to the earphone charging box through the charging box interface 7, and the serial port conversion module is connected to the computer device and the multifunctional adapter module respectively. Exemplarily, the serial port conversion module is a serial port board with a FT232RL chip (FT232RL USB TO TTL UART), the serial port conversion module is connected to the computer device by a plug, the GND pin of the serial port board is connected to the connection line between the first ground port and the second ground port through the serial port board interface 3, the RX pin of the serial port board is connected to the SBU1 line through the serial port board interface 3, and the TX pin of the serial port board is connected to the SBU2 line through the serial port board interface 3. In other embodiments, the serial port conversion module can also be other CP2102, CH340, FT232 or PL2303 series chips.

[0054] In some embodiments, the earphone charging box has an overvoltage protection circuit 8, a Bluetooth chip 9, a charging control chip 10 and a battery 11. Among them, the overvoltage protection circuit 8 can prevent excessive voltage from damaging sensitive electronic components in the circuit, and the charging control chip 10 charges the earphone charging box according to the charging protocol, wherein the charging protocol can be a USB PD protocol and a QC (Quick Charge) protocol, and the model of the charging control chip 10 can be a SY8809 chip, and the embodiment of the present application does not limit the specific model of the charging control chip.

[0055] The following is a detailed description of different application scenarios of the multifunctional switching system provided in the embodiments of the present application. Embodiment 1 will describe the scenario of charging the earphone charging box and grabbing the log file at the same time, Embodiment 2 will describe the scenario of burning the Bluetooth chip inside the earphone charging box, and Embodiment 3 will describe the scenario of transmitting data to the earphone charging box:

[0056] Embodiment 1

[0057] Connect the male connector 1 to the external power supply, and the female connector 2 to the earphone charging box through the charging box interface 7. The electric energy can be transmitted to the earphone charging box through the VBUS line and the first GND line, and then respectively through the overvoltage protection circuit 8 and the charging control chip 10, and finally transmitted to the battery 11. The charging control chip 10 can select the power supply specification through the CC1 line and CC2 line of the multi-function adapter module according to the fast charging protocol, and finally determine the power supply voltage specification of the VBUS line, so as to perform fast charging.

[0058] At the same time, the serial port conversion module can be connected to the multifunctional conversion through the serial port board interface 3, and the serial port conversion module is then connected to the computer device, and the computer device is installed with a serial port tool, so as to realize the serial port communication between the Bluetooth chip 9 and the computer device. The computer device sends a command to grab the log file, and the command to grab the log file is transmitted to the Bluetooth chip 9 through the serial port board, the SBU1 line, the SBU2 line and the second GND line. After the Bluetooth chip 9 receives the command to grab the log file, the SBU1 line and the SBU2 line transmit data, and the serial port tool of the computer device can receive the log file, thereby realizing the acquisition of the working status information of the earphone charging box.

[0059] Embodiment 2

[0060] The male connector 1 is connected to the computer device, the female connector 2 is connected to the earphone charging box through the charging box interface 7, the serial port conversion module is connected to the multi-function conversion through the serial port board interface 3, and the serial port conversion module is then connected to the computer device, and the computer device is installed with program burning tool software.

[0061] If the current Bluetooth chip 9 is not a blank chip, first press the auxiliary burning button 5 once to let the Bluetooth chip 9 enter the burning mode. On the interactive interface of the program burning tool software, select the COM port corresponding to the serial port board, and configure the burning parameters, such as baud rate, data bit, stop bit, check bit, etc. Click to confirm the burning, the computer device transmits the firmware, and then transmits the charging box through the VBUS line, DP line, DN line and the first GND line. Then the Bluetooth chip 9 receives the firmware and burns it.

[0062] The lines for data transmission during the burning process may be other lines, which depends on the model of the Bluetooth chip 9. Some Bluetooth chip models may support other lines as burning lines. For example, the model of the Bluetooth chip 9 supports the SBU1 line and the SBU2 line as burning lines. However, compared with the DP line and the DN line, the transmission speed will be slower.

[0063] Embodiment 3

[0064] Connect the male connector 1 to the computer device, and the female connector 2 to the headset charging box. The data files to be copied and transmitted are transmitted from the computer device to the Bluetooth chip 9 through the DP line and the DN line, thereby realizing data transmission. It should be noted that the files to be transmitted can be pictures, videos, documents, etc., and the present embodiment of the application does not limit the file format.

[0065] A multifunctional switching system provided in an embodiment of the present application realizes the charging of the headphone charging box and the data transmission between the computer device, the simultaneous charging of the headphone charging box and the capture of log files, and the burning operation of the headphone charging box, thereby improving the overall work efficiency of the system.

[0066] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. The above is only a preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements, modifications or changes can be made, and the above technical features can be combined in an appropriate manner. These improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A multifunctional adapter module for an earphone charging box, characterized in that: include: A male connector, a female connector and a serial port board interface; wherein the female connector and the male connector are connected via a fast charging port, and the fast charging port is used to quickly charge the earphone charging box; The female connector has a first mode configuration port and a second mode configuration port, and the serial port board interface is connected to the first mode configuration port and the second mode configuration port of the female connector; wherein the serial port board interface is used to transmit the log file of the earphone charging box; The female connector is used to connect to the earphone charging box, and the male connector is used to connect to a power source.

2. The multifunctional adapter module of the earphone charging box according to claim 1, characterized in that: The male connector has a first power bus port, a first positive differential port, a first negative differential port, a first ground port, a first configuration channel port, and a second configuration channel port; the female connector has a second power bus port, a second positive differential port, a second negative differential port, a second ground port, a third configuration channel port, and a fourth configuration channel port; The fast charging port includes a power configuration unit and a power transmission unit; The power configuration unit is used to connect the first configuration channel port to the third configuration channel port, connect the second configuration channel port to the fourth configuration channel port, connect the first positive differential port to the second positive differential port, and connect the first negative differential port to the second negative differential port; The power transmission unit is used to connect the first power bus port to the second power bus port, and to connect the first ground port to the second ground port.

3. The multifunctional adapter module of the earphone charging box according to claim 2, characterized in that: The line in the power transmission unit used to connect the first power bus port to the second power bus port is a target line. The power transmission unit is provided with an electrostatic discharge protector, and the electrostatic discharge protector is connected to the target line.

4. The multifunctional adapter module of the earphone charging box according to claim 3, characterized in that: The power transmission unit is further provided with a filter capacitor, and the filter capacitor is connected to the target line.

5. The multifunctional adapter module of the earphone charging box according to claim 2, characterized in that: The multifunctional adapter module also includes a first pull-down resistor and a second pull-down resistor, one end of the first pull-down resistor is respectively connected to the first configuration channel port and the third configuration channel port, and the other end of the first pull-down resistor is grounded; one end of the second pull-down resistor is respectively connected to the second configuration channel port and the fourth configuration channel port, and the other end of the second pull-down resistor is grounded, and the first pull-down resistor and the second pull-down resistor are used to output power.

6. The multifunctional adapter module of the earphone charging box according to any one of claims 1 to 5, characterized in that: The multifunctional adapter module also includes an auxiliary burning button, one end of the auxiliary burning button is connected to the first mode configuration port, and the other end of the auxiliary burning button is connected to the second mode configuration port; wherein the auxiliary burning button is configured to connect the first mode configuration port and the second mode configuration port when the auxiliary burning button is triggered.

7. The multifunctional adapter module of the earphone charging box according to any one of claims 1 to 5, characterized in that: At least one data transmission unit is also included between the male connector and the female connector; the multifunctional adapter module also includes an extended burning interface, the extended burning interface is connected to the data transmission unit, and the extended burning interface is used to connect an external chip.

8. A multifunctional switching system, characterized in that: The system comprises a computer device, a serial port conversion module, an earphone charging box, a power supply, and a multifunctional adapter module of the earphone charging box according to any one of claims 1 to 7; Among them, the computer device is connected to the serial port conversion module, and the serial port conversion module is connected to the headphone charging box through the multi-functional adapter module to burn the Bluetooth chip of the headphone charging box and obtain the log file of the headphone charging box, and the headphone charging box is connected to the power supply through the multi-functional adapter module to charge the headphone charging box.

9. The multifunctional switching system according to claim 8, characterized in that: The serial port conversion module is a FT232RL chip.

10. The multifunctional switching system according to claim 8, characterized in that: The earphone charging box has a charging control chip, and the charging control chip charges the earphone charging box according to the USB PD charging protocol.

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