Charging device using the original data line authentication function

Abstract

The embodiment of the present application discloses a charging device that utilizes the original data line authentication function, including an authentication plug socket, a charging connection unit, and a main control circuit; the authentication plug socket matches the original data line plug with an authentication chip in the user's original data line, and is used to insert the original data line plug; the charging connection unit includes: a first connection component for connecting the power supply end, a second connection component for connecting the external device, and a control circuit; wherein the control circuit is used to adjust the voltage and / or current of the charging signal; the ID line verification pin in the main control circuit is connected to the ID line verification pin in the authentication plug socket and the verification pin in the second connection component, so as to realize data transmission between the original data line plug inserted by the authentication plug socket and the verification pin in the second connection component. This solution realizes the reasonable and full use of the authentication chip in the original data line plug, and solves the problem of resource waste.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of charging technology, and more particularly to a charging device utilizing an existing data line authentication function. Background Art

[0002] Electronic devices such as mobile phones, PADs, and smart bracelets have become increasingly indispensable tools in people's daily lives and are used more and more frequently. When the battery of an electronic device is exhausted or low on power, it requires a charging device. Charging devices typically include a data cable and a charging head. The data cable also provides data communication capabilities.

[0003] Some electronic devices, in order to achieve effective management of their charging devices, are equipped with an authentication chip. Charging and other operations are only allowed after the authentication chip has passed. Taking data cables as an example, the cost of the authentication chip accounts for a large proportion of the total production cost of the data cable. The authentication chip is usually set in the plug of the data cable. After the data cable has been used many times, the connection between the plug and the wire is prone to disconnection, making the data cable unusable. However, the data cable plug itself is not damaged, and the authentication chip set in the plug can still work normally. In the existing technology, users usually discard the data cable directly because they cannot use it, resulting in the authentication chip not being reasonably and fully utilized, and there is a problem of waste of resources. Utility Model Content

[0004] In view of the above problems, the present invention is proposed to provide a charging device utilizing the original data line authentication function, which overcomes the above problems or at least partially solves the above problems.

[0005] According to one aspect of an embodiment of the present application, a charging device utilizing an existing data line authentication function is provided, comprising: an authentication plug socket, a charging connection unit, and a main control circuit;

[0006] The authentication plug female socket matches the original data cable plug with the authentication chip in the user's original data cable and is used to insert the original data cable plug;

[0007] The charging connection unit includes: a first connection component for connecting to a power supply terminal, a second connection component for connecting to an external device, and a control circuit; wherein the control circuit is connected to the first connection component and the second connection component and is used to adjust the voltage and / or current of the charging signal; the charging signal is used to charge the external device connected to the second connection component;

[0008] The ID line verification pin in the main control circuit is connected to the ID line verification pin in the authentication plug socket and the verification pin in the second connecting component, thereby realizing data transmission between the original data line plug inserted into the authentication plug socket and the verification pin in the second connecting component.

[0009] Furthermore, the data positive transmission pin in the first connection component is connected to the data positive transmission pin in the second connection component, and the data negative transmission pin in the first connection component is connected to the data negative transmission pin in the second connection component.

[0010] Furthermore, the charging device further includes: a cover for covering the certified plug socket.

[0011] Furthermore, the charging device is in the form of a data cable; the power supply end is an external charging head or a USB device;

[0012] The first connecting component is a first plug that matches the power supply end, and the power input pin in the first plug is connected to the power supply end;

[0013] The second connecting component is a second plug that matches the external device.

[0014] Furthermore, the charging device also includes: a plug converter that matches the first plug and / or the second plug, and is used to adapt to external charging heads, USB devices and external devices with different socket types.

[0015] Furthermore, the charging device is in the form of a charging head; the power supply end is an external power supply;

[0016] The first connecting component includes an AC / DC conversion circuit and a charging protocol management circuit; the power input port in the AC / DC conversion circuit is connected to the power supply end;

[0017] The second connecting component includes at least one charging socket that complies with the USB standard interface, which is used to insert a data cable plug of at least one external data cable and is connected to at least one external device through at least one external data cable.

[0018] Furthermore, the AC / DC conversion circuit is used to: filter the AC signal provided by the power supply end through the filter capacitor and the common-mode inductor, rectify the AC signal through the rectifier bridge, filter the rectified AC signal using the filter to obtain a DC signal, and input the DC signal into the AC / DC power management chip after processing through the protection circuit to control the operation of the AC / DC power management chip;

[0019] The charging protocol management circuit is used to: limit and filter the DC signal in the AC / DC conversion circuit, and then power the charging protocol management chip, and obtain the power supply signal through the charging protocol management chip; wherein, the power supply signal is used to power the main control circuit, the original data cable plug inserted into the authentication plug socket, and the control circuit.

[0020] Furthermore, the charging device is in the form of a portable mobile power supply.

[0021] Furthermore, the charging device further comprises: a display unit;

[0022] The display unit is used to display various states of the charging device and / or various charging parameters.

[0023] Furthermore, the charging device further comprises: an audible and visual alarm unit and / or a WiFi communication module;

[0024] The sound and light alarm unit is used to: give sound and light alarms according to the current status of the charging device;

[0025] The WiFi communication module is used to connect the charging device to the Internet via WiFi.

[0026] According to an embodiment of the present application, a charging device utilizing the existing data cable authentication function includes an authentication plug socket, a charging connection unit, and a main control circuit; the authentication plug socket is used to insert the existing data cable plug; the first connecting component in the charging connection unit is used to connect to the power supply end, the second connecting component is used to connect to the external device, and the control circuit is used to adjust the voltage and / or current of the charging signal; the main control circuit realizes data transmission between the existing data cable plug inserted by the authentication plug socket and the verification pin in the second connecting component, and then transmits data to the external device through the verification pin in the second connecting component, so that the external device can charge and communicate normally. This solution utilizes the authentication function of the authentication chip in the existing data cable by changing the connection relationship between the various components in the charging device without changing the authentication function of the authentication chip, thereby realizing the reasonable and full utilization of the authentication chip in the existing data cable plug and solving the problem of resource waste; in addition, the charging device can include a data cable form, a charging head form, a portable mobile power supply form, etc., which can well meet the different usage needs of users and greatly facilitate user use.

[0027] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation method of the embodiment of the present application is specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the embodiments of the present application. The same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0029] Figure 1 A schematic structural diagram of a charging device utilizing the existing data line authentication function according to the first embodiment of the present application is shown;

[0030] Figure 2a A schematic structural diagram of a charging device in the form of a data line according to a second embodiment of the present application is shown;

[0031] Figure 2b A schematic diagram of a first plug according to a second embodiment of the present application is shown;

[0032] Figure 2c A schematic diagram of a main control circuit according to a second embodiment of the present application is shown;

[0033] Figure 2d A schematic diagram of a female socket for an authentication plug according to a second embodiment of the present application is shown;

[0034] Figure 2e shows a schematic diagram of a control circuit according to a second embodiment of the present application;

[0035] Figure 2f A schematic diagram of a second plug according to a second embodiment of the present application is shown;

[0036] Figure 3a A schematic structural diagram of a charging device in the form of a charging head according to the third embodiment of the present application is shown;

[0037] Figure 3b A schematic diagram of an AC-DC conversion circuit according to a third embodiment of the present application is shown;

[0038] Figure 3c A schematic diagram of a charging protocol management circuit according to a third embodiment of the present application is shown;

[0039] Figure 3d A schematic diagram of a charging socket according to the third embodiment of the present application is shown;

[0040] Figure 3e A schematic diagram of a main control circuit according to a third embodiment of the present application is shown;

[0041] Figure 3f A schematic diagram of a certified plug socket according to the third embodiment of the present application is shown;

[0042] Figure 3gA schematic diagram of a control circuit according to a third embodiment of the present application is shown. DETAILED DESCRIPTION

[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] Figure 1 FIG. 1 shows a schematic structural diagram of a charging device using the original data line authentication function according to the first embodiment of the present application. Figure 1 As shown, the charging device includes: a certified plug socket 110 , a charging connection unit 120 and a main control circuit 130 .

[0045] The authentication plug female socket 110 matches the original data cable plug with the authentication chip in the user's original data cable and is used to insert the original data cable plug. Specifically, the plug type of the original data cable plug can include Lightning type, Micro USB type, Type-C type, etc.

[0046] If the user's original data cable can no longer be used due to a fault such as a broken wire at the connection between the original data cable plug and the wire, but the authentication chip in the original data cable plug can still work normally, in this case, in order to fully utilize the authentication chip of the original data cable and reduce the cost of the charging device, the user can directly insert the original data cable plug of the original data cable into the authentication plug socket 110 of the charging device of this application, or cut off the wire of the original data cable and only insert the original data cable plug into the authentication plug socket 110.

[0047] To protect and carry the original data cable plug inserted into the authentication plug receptacle 110 and enhance the aesthetics of the charging device, the charging device further includes a cover for covering the authentication plug receptacle 110. After the original data cable wires are cut and only the original data cable plug is inserted into the authentication plug receptacle 110, the cover is used to cover the authentication plug receptacle 110 to secure the original data cable plug in place.

[0048] The charging connection unit 120 includes a first connection component 121 for connecting to a power supply, a second connection component 122 for connecting to an external device, and a control circuit 123. The control circuit 123 is connected to the first and second connection components 121, 122 and is used to adjust the voltage and / or current of the charging signal. Specifically, the control circuit 123 is also connected to the main control circuit 130. The main control circuit 130 sends a control signal to the control circuit 123 based on the collected authentication signal. The control circuit 123 adjusts the voltage and / or current of the charging signal based on the control signal from the main control circuit 130. Furthermore, the main control circuit 130 can also be connected to the first connection component 121 to negotiate a charging protocol with a power supply such as an external charging device. The charging signal is used to charge the external device connected to the second connection component 122. Specifically, the power supply includes an external charging head, a USB device, an external power supply, etc. External devices include mobile phones, PADs, smart bracelets, etc.

[0049] The positive data transmission pin (such as D+ pin) in the first connecting component 121 is connected to the positive data transmission pin in the second connecting component 122 , and the negative data transmission pin (such as D- pin) in the first connecting component 121 is connected to the negative data transmission pin in the second connecting component 122 .

[0050] The ID line verification pin in the main control circuit 130 is connected to the ID line verification pin in the authentication plug receptacle 110 and the verification pin in the second connecting component 122, enabling data transmission between the existing data cable plug inserted into the authentication plug receptacle 110 and the verification pin in the second connecting component 122. Data transmission is bidirectional and can include authentication signals and data to be transmitted from external devices.

[0051] The connection between the main control circuit 130 and the authentication plug socket 110 and the second connecting component 122 can be in parallel or in series, with no specific limitations here. When connected in parallel, the main control circuit 130 can be used to collect authentication signals and other data; when connected in series, the main control circuit 130 can be used to forward data between the original data cable plug inserted into the authentication plug socket 110 and the external device connected to the second connecting component 122. Furthermore, the main control circuit 130 can also be connected to the first connecting component 121 to negotiate a charging protocol with a power supply such as an external charging device.

[0052] Specifically, when the original data cable plug is inserted into the authentication plug socket 110 and the second connecting component 122 is connected to an external device, the ID line verification pin in the main control circuit 130 collects the transmission data of the authentication chip in the original data cable plug inserted into the authentication plug socket 110, and passes the data to the verification pin in the second connecting component 122. The data is passed to the external device through the verification pin in the second connecting component 122, so that the external device can charge and / or communicate data normally.

[0053] This application changes the connection relationship between the components in the charging device so that the authentication function of the authentication chip in the original data line can be utilized, and the authentication function of the authentication chip is not changed. The data transmission between the pins is based on the existing transmission technology, and this application only protects the new connection method between the pins. Among them, the authentication method of the authentication chip is the existing technology. The forms of the charging device provided in this application may include: data line form, charging head form, portable mobile power form (such as power bank), etc. The charging devices in the form of data line and charging head are introduced through specific embodiments.

[0054] Figure 2a FIG. 1 shows a schematic structural diagram of a charging device in the form of a data line according to the second embodiment of the present application. Figure 2a As shown, the charging device includes: a certified plug socket 210, a charging connection unit 220 and a main control circuit 230.

[0055] The authentication plug socket 210 matches the original data cable plug with an authentication chip in the user's original data cable and is used to insert the original data cable plug.

[0056] The charging connection unit 220 includes a first connection component for connecting to a power supply, a second connection component for connecting to an external device, and a control circuit 223. Specifically, the power supply can be an external charger or USB device. The first connection component is a first plug 221 that matches the power supply, with the power input pins of the first plug 221 connected to the power supply. The second connection component is a second plug 222 that matches the external device. The control circuit 223 is connected to the first and second plugs 221 and 222 and is responsible for regulating the voltage and / or current of the charging signal. The control circuit 223 is also connected to the main control circuit 230 and regulates the voltage and / or current of the charging signal based on control signals from the main control circuit 230. The charging signal is used to charge the external device connected to the second plug 222. Furthermore, the main control circuit 230 can also be connected to the first plug 221 to negotiate a charging protocol with the power supply, such as an external charging device.

[0057] The ID line verification pin in the main control circuit 230 is connected to the ID line verification pin in the authentication plug socket 210 and the verification pin in the second plug 222, realizing data transmission between the original data line plug inserted into the authentication plug socket 210 and the verification pin in the second plug 222.

[0058] Specifically, the plug type of the original data cable plug may include Lightning type, Micro USB type, Type-C type, etc. The plug type of the first plug may include USB-A type, USB-C type, etc. The plug type of the second plug may include Lightning type, Micro USB type, Type-C type, etc.

[0059] Below, taking the original data cable plug as Lightning type, the first plug as USB-A type, and the second plug as Lightning type as an example, the specific circuit structure and pin connection relationship of the certification plug socket 210, the main control circuit 230, the first plug 221, the second plug 222, the control circuit 223, etc. are explained. Figure 2b FIG2 shows a schematic diagram of a first plug according to a second embodiment of the present application. Figure 2c FIG2 shows a schematic diagram of a main control circuit according to the second embodiment of the present application. Figure 2d A schematic diagram of a certification plug socket according to the second embodiment of the present application is shown. Figure 2e FIG2 shows a schematic diagram of a control circuit according to a second embodiment of the present application. Figure 2f A schematic diagram of a second plug according to the second embodiment of the present application is shown.

[0060] like Figure 2b As shown, pin 1 of the first plug is the power input pin VBUS-C; pin 2 of the first plug is the data negative transmission pin D-, which is connected to the Figure 2f The 2nd pin of the second plug (i.e., the data negative transmission pin D-) is connected; the 3rd pin of the first plug is the data positive transmission pin D+, which is connected to the Figure 2f As shown, pin 3 of the second plug (ie, the data negative transmission pin D+) is connected; pin 4 of the first plug is grounded.

[0061] like Figure 2c As shown, the 1st and 17th pins of the main control circuit are connected to the ground in parallel, the 2nd pin and one end of the 51K resistor R12 are connected in parallel to the 1st pin power input pin VBUS-C of the first plug, and the other end of the resistor R12 is connected in parallel to one end of the 51K resistor R13. Figure 2f The 1st pin of the second plug is connected to VDD, and the other end of the resistor R13 is grounded; the 4th pin of the main control circuit is connected to Figure 2d Connect the 8th pin of the certified plug female socket shown in the figure; the 5th pin of the main control circuit is connected to Figure 2dThe 6th pin of the certification plug female socket is connected to the 11th pin of the main control circuit. Figure 2e One end of the resistor R10 with a resistance of 1K is connected to the main control circuit; Pin 12 is the ID line verification pin, which is connected to Figure 2f The 4th pin of the second plug (i.e. the verification pin) is connected to the 13th pin of the main control circuit. Figure 2f The 1st pin of the second plug is connected to VDD, and the 16th pin of the main control circuit is connected to Figure 2d The 7-pin of the certified female plug is connected as shown.

[0062] like Figure 2d As shown, the 1st and EP pins of the certification plug female socket are grounded; the 2nd pin of the certification plug female socket is the data positive transmission pin D+, which is connected to the Figure 2f The third pin of the second plug is connected to the positive data transmission pin D+; the third pin of the female socket of the certification plug is the negative data transmission pin D-, which is connected to the Figure 2f The 2nd pin of the second plug is connected to the negative data transmission pin D-; the 4th pin of the authentication plug female socket is the ID line verification pin. Figure 2c The 12-pin ID line verification pin of the main control circuit shown is connected to the Figure 2f The 4th pin of the second plug (i.e., the verification pin) is connected; the 5th pin of the female socket of the authentication plug is connected to Figure 2b The first plug's 1-pin power input pin is connected to VBUS-C; the 6-pin of the certification plug female socket is connected to Figure 2c The 5th pin of the main control circuit is connected to the 7th pin of the certification plug female socket. Figure 2c The 16th pin of the main control circuit is connected to the 8th pin of the certification plug female socket. Figure 2c The 4 pins of the main control circuit are connected as shown.

[0063] like Figure 2e As shown, the control circuit includes an NPN transistor Q1 of model SS8050 and a PMOS transistor Q2 of model SI2333; the base of the NPN transistor Q1 is connected to one end of a resistor R10 of 1K and a resistor R11 of 10K, and the other end of the resistor R10 is connected to Figure 2c The 11th pin of the main control circuit shown is connected, and the other end of the resistor R11 is grounded; the emitter of the NPN transistor Q1 is grounded, the collector of the NPN transistor Q1 is connected to the resistor R2 with a resistance of 22Ω, the other end of the resistor R2 is connected to the gate of the PMOS tube Q2 and one end of the resistor R1 with a resistance of 1K, and the other end of the resistor R1 is connected to Figure 2b The power input pin VBUS-C of the first plug is connected to the source of the PMOS tube Q2, and the drain of the PMOS tube Q2 is connected to the VBUS-C of the first plug. Figure 2f Pin 1 of the second plug is connected to VDD as shown.

[0064] like Figure 2f As shown, the second plug's 1-pin VDD is connected to Figure 2e The drain of the PMOS tube Q2 in the control circuit shown is connected; the second pin 2 of the second plug is the data negative transmission pin D-, which is connected to the Figure 2b The 2nd pin of the first plug is connected to the negative data transmission pin D-; the 3rd pin of the second plug is the positive data transmission pin D+, which is connected to the Figure 2b The 3rd pin of the first plug is connected to the positive data transmission pin D+; the 4th pin of the second plug is the verification pin, which is connected to the Figure 2c The 12-pin ID line verification pin of the main control circuit is connected; the 5-pin of the second plug is grounded.

[0065] Before using the charging device provided by this application, it is necessary to insert the user's original data cable plug with the authentication chip into the authentication plug socket. The first plug is connected to an external charging head or USB device. At this time, VBUS-C = 5V, which powers the main control circuit, the original data cable plug inserted into the authentication plug socket, and the source of the PMOS transistor Q2 in the control circuit.

[0066] Pin 2 D- of the first plug is connected in parallel to pin 3 D- of the certified plug female socket and pin 2 D- of the second plug, and pin 3 D+ of the first plug is connected in parallel to pin 2 D+ of the certified plug female socket and pin 3 D+ of the second plug, which serves as an indication of the device type.

[0067] The power supply of pin 2 of the main control circuit is 5V. Pin 2 of the main control circuit, VBUS-C = 5V, is connected to one end of a 51K resistor R12. The other end of the resistor R12 is connected to one end of a 51K resistor R13. The other end of the resistor R13 is grounded. At this time, the end where the resistors R12 and R13 are connected in parallel obtains a voltage of VDD = 2.5V and is connected to pin 1 VDD of the second plug, which is used to indicate that the main power supply is ready during the authentication process.

[0068] At this time, if the female socket of the authentication plug is empty and the original data line plug is not inserted, the 12th pin of the main control circuit is in the acquisition state, and the level changes from 0 to 5V. At this time, the 11th pin of the main control circuit is low level 0V or high impedance state, connected to Figure 2eThe resistor R10 with a resistance of 1K is shown at one end. If the original data cable plug is inserted into the authentication plug socket, pin 12 of the main control circuit is in the acquisition state, with the voltage level varying from 0 to 5V. At this time, pin 11 of the main control circuit is at a high level of 5V and is connected to one end of the resistor R10 with a resistance of 1K. The other end of the resistor R10 is connected to the base of the NPN transistor Q1 and the resistor R11 with a resistance of 10K. The other end of the resistor R11 is grounded. At this time, the base of the NPN transistor Q1 receives a divided voltage V = 5 × (10 / 11) = 4.5V, causing the collector and emitter of the NPN transistor Q1 to be conductive and connected to ground.

[0069] like Figure 2e As shown, one end of a 22 ohm resistor R2 is grounded, and the other end of the resistor R2 is connected to the gate of the PMOS transistor Q2 and one end of a 1K resistor R1. At this time, a divided voltage V = 5 × (22 / 1022) = 0.1 V is obtained at the gate of the PMOS transistor Q2, causing the source and drain of the MOS transistor Q2 to be conductive, so that VBUS-C = VDD = 5 V.

[0070] If the original data cable plug is inserted into the certified female plug socket and the second plug is not connected to an external device, the charger power supply does not detect any voltage level changes on pins D- and D+ of the second plug, and pin 1 of the second plug remains in an uncertain state. If the original data cable plug is inserted into the certified female plug socket and the second plug is connected to an external device, the external device pulls down pins D- and D+ of the second plug. The charger power supply detects the voltage level changes on pins D- and D+ of the second plug, detects that an external device is connected to the second plug, and pin 1 of the second plug remains in a stable voltage of 5V.

[0071] Pin 12 of the main control circuit collects the authentication signal of the authentication chip of the original data cable plug inserted in the authentication plug socket, and transmits the authentication signal to the 3-pin ACCP-XT of the second plug, so that the external device can charge and communicate normally.

[0072] The certification plug socket can also be used for batch firmware downloads and single module firmware upgrades. The specific firmware download and update interface is as follows: Pin 5 of the certification plug socket is connected to Pin 1 of the first plug, VBUS-C, Pin 6 of the certification plug socket, VPP, is connected to Pin 5 of the main control circuit, Pin 7 of the certification plug socket, CLK, is connected to Pin 16 of the main control circuit, and Pin 8 of the certification plug socket, SIO, is connected to Pin 4 of the main control circuit. The five pins of the certification plug socket, VBUS-C, VPP, CLK, SIO, and GND, are connected to an external online or offline download module. The module updates the firmware to the main control circuit through the above five pins, allowing the main control circuit to normally collect the authentication signal from the original data cable plug inserted in the certification plug socket. When the external device is charging or communicating, the collected authentication signal is transmitted to the external device, allowing the external device to charge and communicate normally.

[0073] Optionally, for the data cable-type charging device provided herein, the charging device may further include a plug adapter that matches the first plug and / or the second plug, adapted to accommodate external charging plugs, USB devices, and external devices with different socket types. By providing a plug adapter, the charging device can be adapted to connect to external charging plugs, USB devices, and external devices with different socket types, greatly facilitating user use.

[0074] Figure 3a FIG. 1 shows a schematic structural diagram of a charging device in the form of a charging head according to the third embodiment of the present application. Figure 3a As shown, the charging device includes: a certified plug socket 310 , a charging connection unit 320 and a main control circuit 330 .

[0075] The authentication plug socket 310 matches the original data cable plug with an authentication chip in the user's original data cable and is used to insert the original data cable plug.

[0076] The charging connection unit 320 includes a first connection component for connecting to a power supply, a second connection component for connecting to an external device, and a control circuit 323. Specifically, the power supply can be an external power source. The first connection component includes an AC / DC conversion circuit 3211 and a charging protocol management circuit 3212. The power input port of the AC / DC conversion circuit 3211 is connected to the power supply. The second connection component includes at least one charging socket 322 that conforms to the USB standard interface and is adapted to receive a data cable plug for at least one external data cable, thereby connecting to at least one external device via the at least one external data cable. In other words, when an external device is required, the external device is connected to one end of the external data cable, and the other end of the external data cable is connected to the charging socket 322. This allows the charging device, in the form of a charging head, to connect to the external device via the external data cable. The control circuit 323 is connected to the charging protocol management circuit 3212 and the charging socket 322 to regulate the voltage and / or current of the charging signal. The control circuit 323 is also connected to the main control circuit 330. The control circuit 323 adjusts the voltage and / or current of the charging signal based on the control signal from the main control circuit 330. The charging signal is used to charge the external device connected to the charging socket 322. Furthermore, the main control circuit 330 can also be connected to the charging protocol management circuit 3212 in the first connecting component to negotiate the charging protocol with the power supply end such as the external charging device.

[0077] Specifically, the AC / DC conversion circuit 3211 is used to: filter the AC signal provided by the power supply end through the filter capacitor and the common-mode inductor, rectify the AC signal through the chip rectifier bridge, filter the rectified AC signal using the filter to obtain a DC signal, and input the DC signal into the AC / DC power management chip after processing by the protection circuit to control the operation of the AC / DC power management chip.

[0078] The charging protocol management circuit 3212 is used to: limit and filter the DC signal in the AC / DC conversion circuit, and then power the charging protocol management chip, and obtain the power supply signal through the charging protocol management chip; wherein, the power supply signal is used to power the main control circuit 330, the original data cable plug inserted into the authentication plug socket 310, and the control circuit 323.

[0079] The ID line verification pin in the main control circuit 330 is connected to the ID line verification pin in the authentication plug socket 310 and the verification pin in the charging socket 322, thereby realizing data transmission between the original data line plug inserted into the authentication plug socket 310 and the verification pin in the charging socket 322.

[0080] Specifically, the plug types of the original data cable plug may include Lightning type, Micro USB type, Type-C type, etc. The types of the charging socket may include Type-C type, USB-A type, etc.

[0081] Below, taking the original data cable plug of Lightning type and the second connecting component including 1 Type-C type charging socket (marked as USB1) and 2 USB-A type charging sockets (marked as USB2 and USB3) as an example, the specific circuit structure and pin connection relationship of the certification plug socket 310, main control circuit 330, AC-DC conversion circuit 3211, charging protocol management circuit 3212, charging socket 322, control circuit 323, etc. are explained. Figure 3b FIG2 shows a schematic diagram of an AC-DC conversion circuit according to a third embodiment of the present application. Figure 3c FIG2 shows a schematic diagram of a charging protocol management circuit according to a third embodiment of the present application. Figure 3d A schematic diagram of a charging socket according to the third embodiment of the present application is shown. Figure 3e FIG2 shows a schematic diagram of a main control circuit according to the third embodiment of the present application. Figure 3f A schematic diagram of a certified plug socket according to the third embodiment of the present application is shown. Figure 3g A schematic diagram of a control circuit according to a third embodiment of the present application is shown.

[0082] like Figure 3b As shown, ACL and ACN are 90V to 230V AC input ports. F1 is a 250V disposable fuse. CX1 is a 7.5mm filter capacitor with a capacitance of 0.1uF. LB1 is a 10×6×4mm common-mode inductor with an inductance of 600uH. CX1 and LB1 are used for filtering, smoothing the AC signal. DB1 and DB2 are two MBR40M surface-mount bridge rectifiers that rectify the AC signal passing through LB1. Capacitors EC5, EC1, L1, EC3, and EC2 form a π-type filter, filtering the rectified voltage to produce a 300V DC signal. The parameters of capacitors EC5, EC1, EC3, and EC2 are 400V / 33uF, and the inductor L1 has an inductance of 220uH. One end of the 300V voltage is conducted to port 1 of transformer T1. At the same time, the 300V voltage is conducted to a 180V transient diode TV1 and a ceramic capacitor C1. The parameter of C1 is 102 / 1kV. The transient diode TV1 suppresses the spikes generated by high voltage or current in the circuit and protects the subsequent circuit. The ceramic capacitor C1 plays a role in lightning protection in the circuit.

[0083] The 47R resistor R3, resistor R4 and ceramic capacitor C1 form an RC absorption protection circuit to absorb excessive voltage and prevent the TVS diode from breaking down. The other ends of resistors R3 and R4 are connected in parallel to the cathode of the fast recovery diode D1 with a parameter of RS2M. The fast recovery diode D1 is used to reduce electromagnetic interference and its anode is connected to the AC / DC power management chip U1 (i.e. Figure 3b The OC input terminals 5 and 6 of the AC-DC power management chip in the circuit are connected in parallel to pins 5 and 6 of the AC-DC power management chip U1. One end of capacitor C3 is connected in parallel to pins 5 and 6 of the AC-DC power management chip U1. The other end of capacitor C3 is connected to the primary ground (PGND). Capacitor C3 has a rating of 22pF / 1kV and is used to reduce the impact of transformer T1 noise on U1 components. Transformer T1's terminal 4 is connected to the primary ground (PGND). Transformer T1's terminal 5 outputs the power supply voltage VS+, which is connected to one end of a 220kΩ resistor R5A. The other end of resistor R5A is connected to an 18kΩ resistor R6 in parallel to pin 1 of the AC-DC power management chip U1, VS, for voltage detection. The other end of resistor R6 is connected to the primary ground (PGND).

[0084] Pin 2 (FB) of the AC / DC power management chip U1 is the optocoupler feedback input. Pin 2 (FB) is connected to the positive terminal of the optocoupler EL1018, and the negative terminal of the optocoupler EL1018 is connected to the primary ground (PGND). A 102V / 50V capacitor C6 is connected in parallel across the optocoupler to provide filtering. This allows the control chip to modulate based on the FB voltage feedback. Pin 3 of the AC / DC power management chip U1 is the chip's power supply.

[0085] The output voltage VS+ at port 5 of transformer T1 is connected to the positive terminal of D6 and one end of a 100nF / 1kV capacitor C10. The other end of capacitor C10 is connected to one end of a 10R resistor R7. D6 is a fast recovery diode used to transmit VS+ to the collector terminal of NPN transistor Q1. Capacitor C10 and resistor R7 function as an RC circuit to absorb high-frequency noise and protect the circuit. The cathode of D6 is connected to a 2.2uF capacitor C4 and a 47kΩ resistor R4A. The other end of capacitor C4 is connected to the primary ground PGND. The other end of resistor R4A is connected to the base of NPN transistor Q1. The positive electrode of the Zener diode ZD1 is connected to the primary ground PGND, and the negative electrode of the Zener diode ZD1 is connected to the base of the NPN transistor Q1. The capacitor C4 acts as a filter, and the resistor R4A acts as a current limiter and a voltage divider. The Zener diode ZD1 acts as a voltage regulator and its voltage regulation value is 18V. When the VCC of pin 3 of the AC / DC power management chip U1 exceeds 18V, the AC / DC power management chip U1 starts to work, and when VCC is lower than 5.5V, the AC / DC power management chip U1 stops working. After the AC / DC power management chip U1 is started, the chip's operating voltage range is 7.5V to 28V.

[0086] Capacitor C5, a 22uF / 25V capacitor, connects one end to pin 3 of the AC / DC power management chip U1 and the other to pin 4, providing filtering and voltage regulation. Resistors RS1 and RS2, each with a resistance of 0.75R, and RS4, a 0.62R resistor, are connected in parallel to pin 9 of the AC / DC power management chip U1, CS. The other end is connected in parallel to the primary ground (PGND), serving as the input for sampling the inductor current when PWM is enabled. Pin 8 of the AC / DC power management chip U1, HV, is connected to port 1 of transformer T1, with a voltage of 300V, to start up the U1 chip.

[0087] Transformer T1's T+ port is connected to the positive terminals of D3A and D3, while transformer T1's T- port is connected to the secondary ground GND. The negative terminals of D3A and D3 are connected to the drain of the PMOS transistor. D3 is a reserved position NC. D3A's function is to transmit the voltage obtained from the transformer to the drain (D-pole) of the PMOS transistor U5 to obtain voltage VBUS. Transformer T1's T+ port is also connected to one end of a 10R resistor R5. The other end of resistor R5 is connected to one end of a 471 / 250V capacitor C2. The other end of capacitor C2 is connected to the drain (D-pole) of the PMOS transistor U5. Resistor R5 and capacitor C2 form an RC circuit to absorb high-frequency noise protection. When diode D3A is cut off, the voltage induced by the inductor on diode D3A is very high. The RC circuit absorbs high-frequency noise and prevents diode D3A from experiencing reverse breakdown. Capacitors EC4 and EC6 with parameters of 470uF / 25V are connected in parallel, one end of which is connected to the drain (D pole) of the PMOS tube U5, and the other end of capacitors EC4 and EC6 is connected to the secondary ground GND. Here, capacitors EC4 and EC6 play the role of filtering and stabilizing the voltage.

[0088] The source (S) port VBUSC of the PMOS tube U5 is connected to Figure 3g The sources of the PMOS tubes Q2, Q4 and Q5 in the control circuit shown in FIG. 1 and the gate (G pole) port GATE of the PMOS tube U5 are connected to Figure 3c The charging protocol management circuit shown has a charging protocol management chip U4 of pin 3, where CGATE is used to control whether the PMOS tube is turned on, thereby controlling whether the VBUSC voltage is output.

[0089] Figure 3b The function of CY1 and CY2 is to bridge the primary ground PGND and the secondary ground GND, establishing a discharge channel between the secondary ground of the transformer and the earth. The high-order harmonics of the switching noise are discharged to the earth through this channel, thereby avoiding radiation through the power supply line and reducing the radiation interference of the switching power supply.

[0090] like Figure 3cAs shown in the figure, pin 1 of the charging protocol management chip U4 in the charging protocol management circuit is connected to the voltage VBUS through a 47R resistor R2A. VBUS powers the charging protocol management chip U4, and resistor R2A acts as a current limiter. Pin 2 of the charging protocol management chip U4 is connected to the secondary ground GND. A 0.1uF capacitor C2A is connected in parallel between pins 1 and 2 of the charging protocol management chip U4 to provide filtering. Pin 4 of the charging protocol management chip U4 is the internal LDO output and is connected to the secondary ground GND through a 1uF capacitor C3A. Capacitor C3A also acts as a filter.

[0091] Charging protocol management chip U4 5 pin connection Figure 3d The A6 and B6 pins of the Type-C charging socket (USB1) shown are connected to the 3 pins of two USB-A charging sockets (USB2 and USB3) at the same time. Figure 3f Pin 2 of the certification plug female socket shown; Pin 6 of the charging protocol management chip U4 Figure 3d The A7 and B7 pins of USB1 are connected to the 2 pins of USB2 and USB3 at the same time. Figure 3f The 3rd pin of the certification plug socket shown in the figure serves as a device type indicator. The 9th pin of the charging protocol management chip U4 is connected to the A5 pin of USB1 and is also connected to the Figure 3e Pin 8 of the main control circuit is used to collect the authentication signal from pin A5 of USB1, ACC1. Pin 10 of the charging protocol management chip U4 is connected to pin B5 of USB1 to detect the Type-C charging socket CC2.

[0092] The 11th pin of the charging protocol management chip U4 is connected to a reserved resistor R8A, which is used to set the PDO of Type-C PD. The 12th pin of the charging protocol management chip U4 is the current sampling + positive terminal, and the 13th pin is the current sampling - negative terminal connected to the secondary ground GND. The resistor RS3 with a resistance of 10mR is connected to the secondary ground GND at one end and the other end to Figure 3d As shown, USB1's B1 / A12 and B12 / A1 pins are connected to USB2 and USB3's pins 4, 6, and 7. Resistor RS3 connects the secondary ground GND to the USB1, USB2, and USB3 grounds V-. A 4.7kΩ resistor R9A has one end connected to V- and the other to the ISP pin 12 of the charging protocol management chip U4. Resistor R9A acts as a pull-down resistor. A 0.1µF capacitor C4A connects the secondary ground GND and the other end to the ISP pin 12 of the charging protocol management chip U4. Capacitor C4A acts as a filter.

[0093] Pin 14 of the charging protocol management chip U4 is connected to the external power system regulation terminal. One end of a 91K resistor R10A is connected to VBUS. The other end of resistor R10A and a 10K resistor R11A are connected in parallel to pin 14 of the charging protocol management chip U4. The other end of resistor R11A is connected to secondary ground GND. Resistors R10A and R11A divide the VBUS voltage to provide power system regulation feedback to pin 14 of the charging protocol management chip U4. Pin 15 of the charging protocol management chip U4 is connected to VBUSC, providing a built-in anti-surge circuit for U4. Pin 16 of the charging protocol management chip U4 is a fast charging status indicator. It is connected to the negative pole of the LED of the optocoupler EL1018 and to one end of the resistor R9 with a resistance of 2K. The other end of the resistor R9 and one end of the resistor R8 with a resistance of 1K are connected in parallel to the positive pole of the LED of the optocoupler EL1018. The other end of the resistor R8 is connected to VBUS. The resistors R8 and R9 are connected in series to the positive pole of the LED of the optocoupler EL1018, so that the LED inside the optocoupler lights up, thereby Figure 3b In the AC / DC conversion circuit shown, the U2B optocoupler EL1018 is turned on, thereby connecting pin 2 of the AC / DC power management chip U1 to the primary ground PGND to obtain a feedback signal.

[0094] Pin 16 of the charging protocol management chip U4 is connected to one end of a 10kΩ resistor R12A and one end of a 10nF capacitor C6A. The other end of resistor R12A is connected to one end of a 100nF capacitor C7A. The other end of capacitor C7A and the other end of capacitor C6A are connected in parallel to pin 14 of the charging protocol management chip U4. Resistor R12A and capacitor C7A function as an RC snubber protection circuit, while capacitor C6A functions as a bypass. Pin 16 of the charging protocol management chip U4 is also connected to one end of a 22kΩ resistor R13A and one end of a 1nF capacitor C9A. The other end of resistor R13A is connected to one end of a 100nF capacitor C8A. The other end of capacitor C8A and the other end of capacitor C9A are connected in parallel to pin 12 of the charging protocol management chip U4 (ISP). Resistor R13A and capacitor C8A function as an RC snubber protection circuit, while capacitor C9A functions as a bypass.

[0095] like Figure 3d As shown, the A6 and B6 DP pins of USB1 are the positive data transmission pins of USB1, which are connected in parallel to the 3 pins of USB2 and USB3. The 3 pins of USB2 and USB3 are the positive data transmission pins of USB2 and USB3, and are connected to Figure 3f Pin 2 of the certified female plug (i.e. the positive data transmission pin) is connected to Figure 3cThe 5-pin DP (data positive transmission pin) of the charging protocol management chip U4 shown in the figure plays the role of device type indication. The A7 pin and B7 pin DM of USB1 are data negative transmission pins, which are connected in parallel to the 2 pins of USB2 and USB3. The 2 pins of USB2 and USB3 are the data negative transmission pins of USB2 and USB3, and are connected to Figure 3f The 3rd pin of the certification plug female socket (i.e. the negative data transmission pin) is connected to Figure 3c The 6-pin DM (i.e., the negative data transmission pin) of the charging protocol management chip U4 shown here serves as a device type indicator.

[0096] The B1 / A12 and B12 / A1 pins of USB1, the 4, 6, and 7 pins of USB2 and USB3 are connected to V-, and the B4 / A9 and B9 / A4 pins of USB1 are connected to Figure 3g The drain of Q2 in the control circuit is connected to VDD1, pin 1 of USB2 is connected to the drain of Q5 in the control circuit, and pin 1 of USB3 is connected to the drain of Q4 in the control circuit, VDD3. This provides power VDD to external devices. Optionally, multiple charging sockets can be added. The pin connections and functions are similar to those described above and are not detailed here.

[0097] pass Figure 3b In the AC / DC conversion circuit shown, the ACL and ACN AC input ports are connected to the power supply end to obtain the AC signal provided by the power supply end. Figure 3c The charging protocol management chip in the charging protocol management circuit shown in the figure obtains VBUSC, which supplies power to the main control circuit, the original data line plug inserted into the authentication plug socket, and the source of the PMOS tubes Q2, Q5, and Q4 in the control circuit. Figure 3e As shown, the power supply of pin 2 of the main control circuit is VBUSC, and pin 2 VBUSC = 5V is connected to one end of a 51K resistor R12, and the other end of the resistor R12 is connected to one end of a 51K resistor R13, and the other end of the resistor R13 is grounded. At this time, the end where the resistor R12 and the resistor R13 are connected in parallel obtains a voltage of VDD = 2.5V and is connected to the B4 / A9 and B9 / A4 pins of USB1, and the VDD pin 1 of USB2 and USB3, which is used to indicate that the main power supply is ready during the authentication process.

[0098] At this time, if the female socket of the authentication plug is empty and the original data line plug is not inserted, the 12th pin of the main control circuit is in the acquisition state, and the level changes from 0 to 5V. At this time, the 11th pin of the main control circuit is low level 0V or high impedance state, connected to Figure 3gThe resistance value of the resistor R10 is shown as one end of 1K. If the original data line plug is inserted into the certification plug socket, the 12th pin of the main control circuit is in the acquisition state, and the voltage level varies from 0 to 5V. At this time, the 11th pin of the main control circuit is a high level of 5V, connected to one end of the 1K resistor R10. The other end of the resistor R10 is connected to the base of the NPN transistor Q3 and the 10K resistor R11. The other end of the resistor R11 is grounded. At this time, the divided voltage V=5×(10 / 11)=4.5V is obtained at the base of the NPN transistor Q3, so that the collector and emitter of the NPN transistor Q3 are connected to the secondary ground GND. Figure 3g As shown, one end of a 22 ohm resistor R2 is connected to the secondary ground GND, and the other end of the resistor R2 is connected to the gate of the PMOS transistor Q2 and one end of a 1K resistor R1. At this time, a divided voltage V = 5 × (22 / 1022) = 0.1 V is obtained at the gate of the PMOS transistor Q2, causing the source and drain of the MOS transistor Q2 to be conductive, so that VBUSC = VDD1 = 5V.

[0099] Pin 10 of the main control circuit is at a high level of 5V and is connected to one end of a 1K resistor R19. The other end of the resistor R19 is connected to the base of the NPN transistor Q7 and a 10K resistor R21. The other end of the resistor R21 is grounded. At this time, the base of the NPN transistor Q7 receives a divided voltage V = 5 × (10 / 11) = 4.5V, causing the collector and emitter of the NPN transistor Q7 to conduct and connect to the secondary ground GND. Figure 3g As shown, one end of a 22 ohm resistor R17 is connected to the secondary ground GND, and the other end of the resistor R17 is connected to the gate of the PMOS transistor Q5 and one end of a 1K resistor R15. At this time, a divided voltage V = 5 × (22 / 1022) = 0.1 V is obtained at the gate of the PMOS transistor Q5, causing the source and drain of the MOS transistor Q5 to be conductive, so that VBUSC = VDD2 = 5V.

[0100] Pin 9 of the main control circuit is at a high level of 5V and is connected to one end of a 1K resistor R18. The other end of the resistor R18 is connected to the base of the NPN transistor Q6 and a 10K resistor R20. The other end of the resistor R20 is grounded. At this time, the base of the NPN transistor Q6 receives a divided voltage V=5×(10 / 11)=4.5V, causing the collector and emitter of the NPN transistor Q6 to be conductive and connected to the secondary ground GND. Figure 3gAs shown, one end of a 22 ohm resistor R16 is connected to the secondary ground GND, and the other end of the resistor R16 is connected to the gate of the PMOS transistor Q4 and one end of a 1K resistor R14. At this time, a divided voltage V = 5 × (22 / 1022) = 0.1 V is obtained at the gate of the PMOS transistor Q4, causing the source and drain of the MOS transistor Q4 to be conductive, so that VBUSC = VDD3 = 5V.

[0101] Optionally, multiple control circuits corresponding to the charging sockets can be further expanded, and the functions are similar to those described above, which will not be repeated here.

[0102] The 8-pin ACC1 of the main control circuit is connected to the A5-pin of USB1, the 14-pin ACC2 of the main control circuit is connected to the 5-pin of USB2; the 15-pin ACC3 of the main control circuit is connected to the 5-pin of USB3. The function of ACC1, ACC2 and ACC3 is to collect and obtain the ACC authentication signals of USB1, USB2 and USB3 in a distributed manner through the main control circuit.

[0103] When the original data cable plug is inserted into the certified plug socket, when the B4 / A9 pins and VDD1 of the B9 / A4 pins of USB1, or the VDD2 of pin 1 of USB2, or the VDD3 of pin 1 of USB3 are not connected to the external device through the external data cable, the charging device in the form of a charging head does not detect the level changes on D- and D+ on the external data lines and ACC1, ACC2, and ACC3, and the VDD1, VDD2, and VDD3 lines on the external data lines are in an uncertain state.

[0104] When the original data cable plug is inserted into the certified plug socket, when the B4 / A9 pins and VDD1 of the B9 / A4 pins of USB1, or the VDD2 of pin 1 of USB2, or the VDD3 of pin 1 of USB3 are connected to an external device through an external data cable, the external device pulls down the D- and D+ on the external data line. The charging device in the form of a charging head determines the level change of the external data lines D- and D+, detects that the external data line is plugged into an external device, and the VDD of the data line = 5V stable voltage.

[0105] Pin 12 of the main control circuit (i.e., the ID line verification pin) collects the authentication signal of the original data cable plug inserted into the authentication plug socket, and transmits the authentication signal to the verification pin in the charging socket (such as ACC1 of USB1, ACC2 of USB2, and ACC3 of USB3), and sends it to the external device connected to the external data line through the external data line connected to the charging socket, so that the external device can charge and communicate normally.

[0106] The certified plug socket can also be used for batch downloading firmware and upgrading the firmware of a single module. The specific firmware download and update interface is as follows: Figure 3fThe 5-pin of the certified female plug shown is Figure 3b The U5 source VBUSC in the AC-DC conversion circuit shown is connected, the 6-pin VPP of the authentication plug socket is connected to the 5-pin of the main control circuit, the 7-pin CLK of the authentication plug socket is connected to the 16-pin of the main control circuit, the 8-pin SIO of the authentication plug socket is connected to the 4-pin of the main control circuit, and the 5 pins VBUSC, VPP, CLK, SIO, and GND of the authentication plug socket are connected to the external online or offline download module. The module updates the firmware to the main control circuit through the above 5 pins, so that the main control circuit can normally collect the authentication signal from the original data cable plug inserted in the authentication plug socket. When the external device is charging or communicating, the collected authentication signal is sent to the external device, so that the external device can charge and communicate normally.

[0107] Optionally, in each of the above embodiments, the charging device may further include a display unit configured to display various states of the charging device and / or various charging parameters. The states of the charging device may include charging, charging complete, and data communication status, and the charging parameters may include the voltage of the charging signal, the current of the charging signal, and the charging power.

[0108] Optionally, in each of the above embodiments, the charging device may further include an audible and visual alarm unit and / or a WiFi communication module. The audible and visual alarm unit is used to provide an audible and visual alarm based on the current state of the charging device. For example, when the device is charging, if the voltage, current, or charging power of the charging signal exceeds a corresponding preset value, the audible and visual alarm unit may provide an audible and visual alarm, specifically by flashing an LED and / or playing audio through a buzzer. The WiFi communication module is used to connect the charging device to the Internet via WiFi so that the charging device can obtain relevant authentication parameters, authentication logic, etc. from the Internet.

[0109] According to an embodiment of the present application, a charging device utilizing the existing data cable authentication function includes an authentication plug socket, a charging connection unit, and a main control circuit; the authentication plug socket is used to insert the existing data cable plug; the first connecting component in the charging connection unit is used to connect to the power supply end, the second connecting component is used to connect to the external device, and the control circuit is used to adjust the voltage and / or current of the charging signal; the main control circuit realizes data transmission between the existing data cable plug inserted by the authentication plug socket and the verification pin in the second connecting component, and then transmits data to the external device through the verification pin in the second connecting component, so that the external device can charge and communicate normally. This solution utilizes the authentication function of the authentication chip in the existing data cable by changing the connection relationship between the various components in the charging device without changing the authentication function of the authentication chip, thereby realizing the reasonable and full utilization of the authentication chip in the existing data cable plug and solving the problem of resource waste; in addition, the charging device can include a data cable form, a charging head form, a portable mobile power supply form, etc., which can well meet the different usage needs of users and greatly facilitate user use.

[0110] It should be noted that, in the present invention, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not represent any actual relationship or order between the entities or operations.

[0111] The illustrations provided in the present invention are merely schematic illustrations of the basic concept of the present invention. The illustrations only show components relevant to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0112] The term "connection" as used in the present invention includes both direct connection and indirect connection, such as connection through active devices, passive devices or electrically conductive media; it may also include connection through other active devices or passive devices known to those skilled in the art on the basis of achieving the same or similar functional purposes, such as connection through circuits or components such as switches and follower circuits.

[0113] The description and application of the present invention here are illustrative and are not intended to limit the scope of the present invention to the above-mentioned embodiments. The effects or advantages involved in the embodiments may not be reflected in the embodiments due to interference from various factors, and the description of the effects or advantages is not used to limit the embodiments. Variations and changes to the embodiments disclosed here are possible, and replacements and various equivalent components of the embodiments are well known to those of ordinary skill in the art. It should be clear to those skilled in the art that, without departing from the spirit or essential characteristics of the present invention, the present invention can be implemented in other forms, structures, arrangements, proportions, and with other components, materials and parts. Other variations and changes can be made to the embodiments disclosed here without departing from the scope and spirit of the present invention.

Claims

1. A charging device using the existing data line authentication function, characterized in that: include: Certified plug socket, charging connection unit and main control circuit; The authentication plug female socket matches the original data line plug with the authentication chip in the original data line of the user, and is used to insert the original data line plug; The charging connection unit comprises: a first connection component for connecting to a power supply end, a second connection component for connecting to an external device, and a control circuit; wherein the control circuit is connected to the first connection component and the second connection component, and is used to adjust the voltage and / or current of the charging signal; the charging signal is used to charge the external device connected to the second connection component; The ID line verification pin in the main control circuit is connected to the ID line verification pin in the authentication plug socket and the verification pin in the second connecting component, so as to realize data transmission between the original data line plug inserted into the authentication plug socket and the verification pin in the second connecting component.

2. The charging device according to claim 1, characterized in that: The data positive transmission pin in the first connection component is connected to the data positive transmission pin in the second connection component, and the data negative transmission pin in the first connection component is connected to the data negative transmission pin in the second connection component.

3. The charging device according to claim 2, characterized in that: The charging device further comprises: a cover body for covering the certification plug socket.

4. The charging device according to any one of claims 1 to 3, characterized in that: The charging device is in the form of a data cable; the power supply end is an external charging head or a USB device; The first connecting component is a first plug that matches the power supply end, and a power input pin in the first plug is connected to the power supply end; The second connecting component is a second plug matching the external device.

5. The charging device according to claim 4, characterized in that: The charging device also includes: a plug converter matching the first plug and / or the second plug, which is used to adapt to the external charging head, the USB device and the external device with different socket types.

6. The charging device according to any one of claims 1 to 3, characterized in that: The charging device is in the form of a charging head; the power supply end is an external power supply; The first connection component includes an AC-DC conversion circuit and a charging protocol management circuit; the power input port in the AC-DC conversion circuit is connected to the power supply end; The second connecting component includes at least one charging socket that complies with the USB standard interface, which is used to insert a data cable plug of at least one external data cable and is connected to at least one external device through at least one external data cable.

7. The charging device according to claim 6, characterized in that: The AC / DC conversion circuit is used to: filter the AC signal provided by the power supply end through a filter capacitor and a common mode inductor, rectify the AC signal through a rectifier bridge, filter the rectified AC signal through a filter to obtain a DC signal, and input the DC signal into the AC / DC power management chip after being processed by a protection circuit to control the operation of the AC / DC power management chip; The charging protocol management circuit is used to: power the charging protocol management chip after current limiting and filtering the DC signal in the AC / DC conversion circuit, and obtain the power supply signal through the charging protocol management chip; wherein, the power supply signal is used to power the main control circuit, the original data line plug inserted into the authentication plug socket, and the control circuit.

8. The charging device according to any one of claims 1 to 3, characterized in that: The charging device is in the form of a portable mobile power source.

9. The charging device according to any one of claims 1 to 3, characterized in that: The charging device further comprises: a display unit; The display unit is used to display various states and / or various charging parameters of the charging device.

10. The charging device according to any one of claims 1 to 3, characterized in that: The charging device also includes: an audible and visual alarm unit and / or a WiFi communication module; The sound and light alarm unit is used to: make sound and light alarm according to the current state of the charging device; The WiFi communication module is used to connect the charging device to the Internet via WiFi.

Images