Connector with stable wake-up, data line and wake-up method

Abstract

The invention relates to a connector capable of being awakened stably, a data line and an awakening method, a tin flowing groove is formed in the inner wall of a shell, the tin flowing groove corresponds to a tin soldering point on a PCB, tin soldering on the tin soldering point is squeezed into the tin flowing groove in the process that the PCB is inserted into the shell, the contact area of the tin soldering and the shell is increased, the contact area is larger, and the awakening effect is better. The awakening of the connector is smoother and more stable, the combination of the shell and the PCB is more stable, the strength of the connector is higher, the connection of the PCB and the shell and the realization of a circuit design principle are facilitated, the yield of the connector is improved, and the safety is improved. A starting circuit is designed on the PCB to be matched with a charging circuit, when charging equipment is out of power, awakening of the connector is achieved through contact of a protocol resistor, a connector shell and the PCB, when the charging equipment is powered on, the signal switch module is turned on through the main control module so that awakening of the connector can be achieved, awakening is more stable, the connector can be awakened when the equipment is powered on or powered off, and the charging efficiency is improved. And the connector is charged through the charging circuit after being awakened, so that the use is more convenient.

Description

Technical Field

[0001] The present invention relates to the field of connector and data line wake-up, and particularly to a connector, a data line and a wake-up method with stable wake-up performance. Background Art

[0002] In portable electronic devices such as smart phones and tablet computers, the wake-up stability and structural reliability of micro data line connectors (such as Lightning and USB Type-C interfaces) directly affect the charging efficiency and user experience. Currently, mainstream connectors generally use solder joints to achieve conduction between the PCB board and the metal shell, and rely on changes in contact impedance to trigger wake-up signals. However, the existing technical solutions have exposed the following key defects during long-term use:

[0003] 1. Insufficient reliability of the solder contact interface. During the assembly process of the shell and the PCB board of traditional connectors, the solder achieves conduction only through planar contact, and the contact area is limited (typical value ≤ 0.8mm 2 ). When the shell is externally squeezed or the temperature changes, micron-level gaps are likely to occur between the solder and the shell (the measured gap fluctuation reaches 5 - 15μm), resulting in a contact impedance fluctuation exceeding ±30% (tested according to the IPC-6012 standard). Especially in the wake-up scenario of low-power devices, abnormal contact impedance will cause the protocol handshake failure rate to increase to more than 12% (industry sampling data), seriously affecting the charging start efficiency.

[0004] 2. Structural failure caused by the insertion and extraction process. The inner wall of the existing shell lacks a solder flow guiding structure, and the solder is prone to uneven accumulation when the PCB board is inserted. Experiments show that when the insertion speed > 3mm / s, the solder overflow rate can reach 18%, resulting in a loss of effective contact area of more than 40%. In addition, the planar contact structure leads to insufficient shear strength between the solder and the shell (typical value < 15MPa). After 500 insertion and extraction cycles, the risk of contact interface peeling increases significantly, resulting in intermittent wake-up signals.

[0005] 3. Adaptability defects of the wake-up mechanism. The traditional wake-up circuit relies on a single conduction path: when the device is powered on, it is triggered by the main control chip to wake up, and when it is powered off, an effective conduction cannot be established. Patent sampling analysis shows that the wake-up success rate of the existing solutions is only 67% when the device power is lower than 1%. Users need to repeatedly insert and extract or press physical buttons to activate charging, seriously violating the "plug and play" design concept.

[0006] 4. The contradiction between structural strength and compactness. The outer shell area thickened to improve mechanical strength (such as the rib structure) will encroach on the PCB layout space, resulting in a decrease in the installation density of electronic components by more than 23%. At the same time, solder joints lacking stress dispersion design (such as in Patent US20180212345A1) are prone to stress concentration during the drop test. When subjected to an impact at a height of 1.2 m, the probability of solder joint cracking is as high as 31%.

[0007] 5. The bottleneck of production yield and cost control. The existing soldering process requires an assembly accuracy of ±0.05 mm, but the inner wall of the outer shell lacks a self-aligning structure (such as a guiding solder flow groove), resulting in a PCB board skew tolerance of only 0.3° during mass production. The yield has long hovered between 82% - 85%. In addition, the rework cost caused by solder overflow accounts for more than 17% of the total production cost.

[0008] The above defects are particularly prominent in the new generation of connectors that support the PD3.1 fast charging protocol (>100W) and high-speed data transmission (USB4 40Gbps). The industry urgently needs a connector solution with enhanced solder interface, dual-mode wake-up compatibility, and optimized mechanical structure. Summary of the Invention

[0009] The technical problem to be solved by the present invention is that the reliability of the solder contact interface of the existing connector is insufficient, and there are also structural failures caused by the plugging and unplugging process and defects in the adaptability of the wake-up mechanism. In view of the above defects of the prior art, a connector, data cable, and wake-up method with stable wake-up are provided.

[0010] To solve the above technical problems, the technical solution adopted by the present invention is:

[0011] Construct a connector with stable wake-up, including an outer shell and a PCB board that can be inserted into the outer shell. PIN pins are provided on the PCB board, and PIN pin windows corresponding to the PIN pins are provided on the outer shell. After the PCB board is inserted into the outer shell, the PIN pins are placed at the PIN pin windows. The characteristics are as follows: Multiple groups of solder joints are provided on the PCB board, and solder is placed on the solder joints to contact the outer shell to conduct the PCB board and the outer shell. During the process of inserting the PCB board into the outer shell, the contact area between the inner wall of the outer shell and the solder increases to improve the wake-up stability.

[0012] Preferably, a solder flow groove is provided on the inner wall of the outer shell. When the PCB board is inserted into the outer shell, the solder is squeezed into the solder flow groove to increase the contact surface and contact area between the outer shell and the solder;

[0013] Or, an arc-shaped protrusion or a strip-shaped protrusion is provided inside the housing. When the PCB board is inserted into the housing, the arc-shaped protrusion squeezes the solder to increase the contact area between the housing and the solder. Or, when the PCB board is inserted into the housing, the strip-shaped protrusion extrudes the solder upward to form a groove, and the strip-shaped protrusion is placed in the groove to increase the contact surface and contact area between the housing and the solder.

[0014] Preferably, the housing includes a smooth portion and an outwardly convex portion connected to the smooth portion. The thickness of the outwardly convex portion is greater than that of the smooth portion. The solder flow groove, the arc-shaped protrusion or the strip-shaped protrusion is disposed on the inner wall of the outwardly convex portion. Two sets of solder joints are provided on both the upper and lower sides of the PCB board. The two sets of solder joints are placed on the brightness on the upper and lower sides. At least one of at least one set of solder flow grooves, arc-shaped protrusions or strip-shaped protrusions is provided on the inner wall of the outwardly convex portion corresponding to each set of solder joints.

[0015] Preferably, the width of the solder joint is greater than the sum of the widths of the corresponding multiple sets of solder flow grooves, arc-shaped protrusions or strip-shaped protrusions;

[0016] The end of the solder flow groove or the strip-shaped protrusion extends to the smooth portion. A hollow portion is provided in the middle of the outwardly convex portion. Solder flow grooves, arc-shaped protrusions or strip-shaped protrusions are provided on both sides of the hollow portion of the outwardly convex portion.

[0017] Construct a data cable, including an input end connected to an adapter or a power bank. It is characterized in that: it further includes a connector with stable wake-up as described above connected to the input end. An output end connected to a peripheral device is provided on the connector. A charging circuit is provided between the input end and the output end. The connector further includes a main control circuit and a startup circuit connected to the main control circuit. The main control circuit is electrically connected to the charging circuit. The startup circuit is connected to the output end, and the startup circuit enables the input end to be protocol-adapted to the adapter or the power bank and then provides an electrical signal for the output end through the charging circuit to charge the peripheral device.

[0018] Preferably, the startup circuit includes a signal switch module connected to the main control circuit. The signal switch module is further connected with a protocol resistor. The protocol resistor is connected to the input end and the output end and is electrically connected to the solder joint of the connector. The connector wakes up by driving the signal switch module through the main control circuit, or transmits the electrical signal to the solder joint through the protocol resistor and then transmits it to the housing to wake up the connector, thereby turning on the charging circuit to make the charging circuit work.

[0019] Preferably, the signal switch module uses an NMOS transistor. The main control chip uses a second chip. The G pole of the NMOS transistor is electrically connected to the 3rd pin of the second chip. The 3rd pin stabilizes the input voltage and then transmits it to the NMOS transistor to turn on the NMOS transistor.

[0020] Preferably, the NMOS transistor is connected with an anti-floating module, the NMOS transistor is connected with a second protection module, and a clamping protection module is connected between the main control module and the output end.

[0021] Preferably, the charging circuit includes a starting module connected to the input end and the output end, and a first protection module connected to the input end. The first protection module is connected to the output end through a power switch module, and the first protection module is connected to the main control circuit. When the starting module detects an electrical signal, the power switch module is turned on to enable the charging circuit to conduct the electrical signal.

[0022] A method for waking up a data cable is provided, based on the data cable described above. The method is characterized by including the following steps: connecting a power bank or an adapter to the input end, connecting the output end to a peripheral device to be charged, waking up the connector after the starting circuit is turned on, and then charging the peripheral device through the charging circuit.

[0023] The beneficial effects of the present invention are as follows: By providing a molten tin groove on the inner wall of the housing, the molten tin groove corresponds to the solder joints on the PCB board. Thus, during the process of inserting the PCB board into the housing, the solder on the solder joints is squeezed into the molten tin groove, avoiding waste of solder, increasing the contact area between the solder and the housing, having more contact surfaces, making the waking up of the connector smoother and more stable. At the same time, the combination of the housing and the PCB board is more stable, the strength of the connector is greater, and it can also achieve normal use after more effective pluggings and unplugging. It is also convenient for the connection between the PCB board and the housing. At the same time, the connection process is more convenient, only need to insert the PCB board into the housing, facilitating the realization of the circuit design principle, thereby improving the yield rate of the connector and also improving the safety. A hollow part is provided between the convex parts, facilitating the injection of glue for the connector and providing a more convenient layout for the placement of electronic components on the PCB board. Fixed buckles are provided on both sides of the housing, which not only facilitates the connection and fixation of the connector to the inserted device but also facilitates the grounding of the connector. At the same time, the PCB board is designed with a starting circuit in cooperation with the charging circuit. When the charging device is out of power, the connector is woken up through the protocol resistor and the contact between the connector housing and the PCB board. When the charging device is powered on, the signal switch module is turned on by the main control module to wake up the connector. The waking up is more stable, and the connector can be woken up whether the device is powered on or off. After the connector is woken up, it is charged through the charging circuit, making the use more convenient and meeting the requirement of plug and play. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will further illustrate the present invention in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0025] Figure 1 Structural schematic diagram of the connector according to a preferred embodiment of the present invention;

[0026] Figure 2 Structural schematic diagram of the housing according to a preferred embodiment of the present invention;

[0027] Figure 3 Another - direction structural schematic diagram of the housing according to a preferred embodiment of the present invention;

[0028] Figure 4 Structural schematic diagram of the PCB board according to a preferred embodiment of the present invention;

[0029] Figure 5 Circuit principle block diagram of the PCB board according to a preferred embodiment of the present invention;

[0030] Figure 6 Principle block diagram of the charging circuit according to a preferred embodiment of the present invention;

[0031] Figure 7 Principle block diagram of the startup circuit according to a preferred embodiment of the present invention;

[0032] Figure 8 Specific circuit structural schematic diagram of the PCB board according to a preferred embodiment of the present invention. Specific implementation manners

[0033] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] A connector with stable wake - up according to a preferred embodiment of the present invention; includes as Figures 1 - 4As shown in the figure, it includes a housing 30. An insertion hole 307 is provided on one side of the housing. A receiving cavity 300 is formed inside the housing. It further includes a PCB board 20 inserted into the receiving cavity 300 through the insertion port 307. Multiple groups of PIN pins 202 are provided on both the upper and lower surfaces of the PCB board. On both sides of the housing, PIN pin windows 301 are provided corresponding to the PIN pins, and the PIN pins leak out from the housing through the PIN pin windows 301. A raised reinforcing rib 303 is provided on the top of the housing. A recessed portion 200 is provided on the top of the PCB board 20 corresponding to the reinforcing rib. Placing the reinforcing rib in the recessed portion can limit the PCB board and prevent the top of the housing from bulging and breaking at the same time. At the same time, fixing buckles 302 are provided on the left and right sides of the housing. When the connector is inserted into the socket, the fixing buckles can prevent the connector from swinging left and right, and can also achieve grounding with the female socket of the device. For example, the hooks provided on both sides of the mobile phone socket correspond to the fixing buckles 302, which can prevent swinging left and right for better fixation and achieve better grounding at the same time.

[0035] Specifically, as Figures 1 - 3 shown in the figure, two groups of soldering points 201 are respectively provided on the upper and lower surfaces of the PCB board 20, that is, a total of four groups of soldering points are provided on the PCB board. An outward convex portion 304 is formed by the extension of the housing 300 toward the insertion port 307. The outward convex portion is provided corresponding to the soldering points, so there are also four groups of outward convex portions. When the PCB board is inserted into the housing, the inner wall of the outward convex portion contacts the soldering points. To increase the strength of the housing, the thickness of the outward convex portion can be greater than the thickness at the smooth portion 309, and the outward convex portion and the smooth portion are integrally formed. At the same time, for the connector to achieve better wake-up, a solder flow groove 305 is provided on the inner wall of the outward convex portion. The solder flow groove corresponds to the soldering points. When the PCB board is inserted into the housing, the solder on the soldering points is squeezed into the solder flow groove, avoiding solder overflow and reducing the yield rate, and also saving costs. The solder in the solder flow groove can connect the PCB board and the housing, thus playing a role in positioning and contact, making the combination of the housing and the PCB board more stable, and the strength of the combined connector greater. At the same time, due to the setting of the solder flow groove, the contact surface of the solder with the housing is more, thus increasing the contact area between the solder and the housing, making the wake-up of the connector smoother, more stable, and more conducive to the realization of circuit design.

[0036] Furthermore, as Figures 1 - 3As shown, the solder flow grooves on each set of outward convex portions 304 can be set in multiple groups. When set in multiple groups, their contact surfaces will further increase, the contact area will further increase, the housing and the PCB board will have better bonding stability, and the wake-up of the connector will be smoother and more stable. The shape of the solder flow groove can also be set as needed. For example, the cross-section is set as a rectangle or a trapezoid. When set as a trapezoid, the bottom side with the larger length is close to the insertion port side, so that the solder can be better squeezed into the solder flow groove. It can also be set as a trapezoidal prism. The side with the larger area is close to the housing, and the solder will be better squeezed into the solder flow groove; the side with the smaller area is close to the housing, and the solder joint will be more stable with the connector, thereby increasing the contact surface between the solder and the housing, and then increasing the contact area to achieve a more stable wake-up. At the same time, the solder flow groove can also be set obliquely, which will not be specifically described here. By setting the solder flow groove on the inner wall of the outward convex portion, when the PCB board is inserted into the housing, the solder on the solder joint is squeezed into the solder flow groove, thereby increasing the contact surface between the solder and the housing, making the connection between the PCB board and the housing more stable, and all should fall within the protection scope of the present invention. At the same time, the width of each solder joint should be greater than the sum of the widths of the corresponding solder flow grooves. That is, when a solder joint corresponds to three groups of solder flow grooves, all three groups of solder flow grooves should be placed within this group of solder joints. The outward convex portions on the same side of the housing can also be integrally formed by connecting left and right, or a hollow portion 306 can be provided in the middle. During the glue injection process after the housing and the PCB board are connected, the hollow portion can achieve a better glue injection effect. At the same time, larger electronic components on the PCB board can also be placed in the hollow groove, which is convenient for placing the electronic components on the PCB board.

[0037] It should be noted that the above method of increasing the contact area between the solder and the sampling contact surface, that is, by setting the solder flow groove 305 on the inner wall of the housing, when the PCB board is inserted into the housing, the solder is squeezed into the solder flow groove to increase the contact surface between the solder and the housing, thereby increasing the contact area to achieve a more stable wake-up. The inner wall of the housing can also be provided with protrusions. When the PCB board is inserted into the housing, the protrusions squeeze out the solder flow groove from the solder to increase the contact surface between the housing and the solder, so as to increase the contact area between the housing and the solder, thereby achieving a more stable wake-up. It should be noted that the arc-shaped contact surface method can also be used to increase the contact surface between the housing and the solder, that is, hemispherical or arc-shaped protrusions are provided on the inner wall of the housing. When the PCB board is inserted into the housing, the hemispherical or arc-shaped protrusions will be in close contact with the solder, reducing the distance between the solder and the housing, and the contact area between the solder and the housing can also be achieved, thereby achieving a more stable wake-up. At this time, there is only one arc-shaped contact surface between the housing and the solder, but the contact area is increased, and stable wake-up can also be achieved. In this application, only the relevant methods of increasing the contact area to achieve stable wake-up are listed. Conventional methods or structures that do not make creative changes to increase the contact area to achieve stable wake-up should fall within the protection scope of this application.

[0038] Furthermore, as Figures 1 - 4As shown, in order to further increase the strength of the outer shell, the end portion 308 of the solder flow groove extends onto the smooth portion 309. When the solder is squeezed into the solder flow groove, the solder can also increase the connection strength between the smooth portion and the convex portion, thereby increasing the strength of the outer shell. At the same time, in order to better judge the insertion situation of the PCB board, a limiting angle 203 is provided on the PCB board. When the PCB board is inserted into the outer shell and the convex portion contacts the limiting angle, the PCB board is completely inserted into the outer shell, which is more convenient for judgment.

[0039] When the connector of the present application is connected, after dropping solder on the solder joint 201 of the PCB board 20, the side of the concave portion 200 of the PCB board 20 is first inserted into the accommodating cavity 300 through the insertion port 307. When the concave portion contacts the reinforcing rib 303, it indicates that the PCB board is inserted in place. At this time, the PIN pin 202 is placed at the PIN pin window 301. During the insertion process, the solder joint passes through the convex portion 304. After the PCB board is inserted in place, the solder joint is placed at the solder flow groove and the solder on the solder joint is squeezed into the solder flow groove during the insertion process, thereby increasing the contact area between the solder and the outer shell, so that the PCB board can be firmly connected to the outer shell. The connected connector is more stable, and a more stable wake-up can be achieved, and more plugging and unplugging operations can be realized.

[0040] In a preferred embodiment of the present invention, a data cable with stable wake-up includes a connector C port as an input end and a connector L port as an output end. The connector L port adopts the above-mentioned connector with stable wake-up. The specific connector structure is as described above and will not be repeated here. In order to cooperate with the wake-up of the connection between the outer shell and the solder to achieve better wake-up of the data cable, as Figure 5 shown, the input end of the PCB board 20 is connected to the connector C port 40. The PCB board also includes a connector L port 60 connected to the output end. A charging circuit 50 is connected between the connector C port 40 and the connector L port, and a main control circuit 70 connected to the connector L port. The main control circuit is connected to the charging circuit. The control circuit further includes a startup circuit 80 connecting the connector C port and the connector L port. The startup circuit 80 is connected to the connector L port through the main control circuit 70, and the startup circuit is also connected to the ground 90. When the connector L port is connected to a device for output, the power of the device turns on the startup circuit 80 and transmits an electrical signal to the main control circuit, and then the connector C port charges the device through the charging circuit. The connector C port is an interface of the TYPE-C type or the like, which is connected to a power adapter or a connecting wire, etc. as an electrical signal input to the connector for use; the connector L port is an Apple Light ing type interface, which is connected to a mobile phone or other types of devices to charge such devices. The above-mentioned connector with stable wake-up can be used for the connector of the Apple Light ing type interface.

[0041] Furthermore, as Figure 6As shown, the charging circuit 50 includes a startup module 500 connected to the L port 40 of the connector. The other end of the startup module is connected to the C port of the connector. At the same time, the L port of the connector is connected to a power switch module 502. After the power switch module is connected to a first protection module 501, it is connected to the C port of the connector and is also connected to the main control circuit 70.

[0042] Further, as Figure 8 shown, the first protection module 501 includes a first resistor R1 and a second resistor R2 connected to the main control circuit. The first resistor and the second resistor are connected in parallel, and the other end of the second resistor is connected to a third bidirectional voltage stabilizing diode D3. The other end of the third bidirectional voltage stabilizing diode is connected to the other end of the first resistor. The first protection module composed of the first resistor R1, the second resistor R2, and the third bidirectional voltage stabilizing diode D3 has a current limiting effect to increase the driving ability during charging and can also prevent surge static electricity. The power switch module 203 is a first MOS transistor Q1. The first MOS transistor uses a PMOS transistor. Its source S is connected to the C port of the connector, its drain D is connected to the L port of the connector, and its gate G is connected to the first protection module. The startup module 500 is a third detection resistor R3. One end of the third detection resistor is connected to the C port of the connector and is connected to the source S, and the other end is connected to the L port of the connector and is connected to the drain D. When the mobile phone or the charging device has no power, the third resistor detects the current and serves as a startup resistor to open the protocol, so that the first MOS transistor is turned on for charging.

[0043] Further, as Figure 7 shown, the startup circuit 80 includes a deployment module 800 connected to the C port 40 and the L port 60 of the connector, and a second protection module 803 connected to the deployment module. The deployment module is grounded to 90 at the same time. At the same time, the second protection module 803 is also connected to the main control circuit 70 and a signal switch module 801. A third protection module 804 is connected to the L port 60 of the connector. The signal switch module 801 is connected to an anti-floating module 802, which is grounded to 90 at the same time, and the anti-floating module is connected to the second protection module 803.

[0044] Further, as Figure 8As shown in the figure, the matching module 800 includes a fifth resistor R5. The fifth resistor R5 can be configured with a fixed resistance value or a non-fixed resistance value, so as to adapt the voltage and current through the matching module, adapt the CC voltage of different protocol masters, and adapt to different connection lines or adapters, etc. The signal switch module 801 uses a second MOS transistor, which is a PMOS transistor. The drain D is connected to the matching module, the gate G is connected to the second protection module 803, and the source S is grounded at 90. At the same time, the source S is also connected to the anti-floating module 802. The anti-floating module 802 uses an eighth resistor R8 connected in parallel between the source S and the gate G, and a fifth bidirectional voltage stabilizing diode D5 is also connected in parallel at both ends. The second protection module 803 includes a fourth resistor R4 connected to the drain D of the second MOS transistor Q2 and a seventh resistor R7 connected to the gate G of the second MOS transistor Q2. The second protection module plays a current limiting role, thereby protecting the second MOS transistor and preventing the second MOS transistor from burning out. At the same time, it can also prevent surge static electricity. The main control circuit 70 uses a second chip U2. The third pin of the second chip U2 is connected to the second protection module. The fourth pin of the second chip U2 is connected to the 2-7 pins of the connector L port through a clamping protection module. The clamping protection module includes a fourth resistor R4 arranged between the 2-7 pins of the connector L port and the fourth pin of the second chip U2, and a second bidirectional voltage stabilizing diode D2 connected to the fourth resistor. The second chip is protected through the clamping protection module to prevent the chip from being broken down by surge static electricity. When the second bidirectional voltage stabilizing diode and the fourth resistor are combined, the external long-term DC interference can be clamped below 10V to avoid burning out the second chip. When the connector L port is inserted into the mobile phone, and the mobile phone has remaining power and is in the boot state, the fourth resistor transmits the current, and the main control circuit can thus know that the mobile phone has remaining power. The connector L port can transmit the protocol packet and voltage to the main control chip through the PIN pin and the clamping protection module. The third pin of the main control chip turns on the second MOS transistor Q2 through the seventh resistor R7, and the startup circuit is turned on to achieve wake-up. Then the charging circuit can charge, and then the connector C port charges the mobile phone through the charging circuit. When the mobile phone is in the shutdown and power-fed state, the 2-7 of the connector L port and the 1-4 of the connector C port are protocol-adapted through the fifth resistor R5, and then connected through the connector L port housing and the soldering point to achieve wake-up. At this time, the power button of the mobile phone needs to be pressed to force the mobile phone to communicate with the connector L port and turn on the startup circuit to achieve wake-up. The eighth resistor prevents the second MOS transistor from being turned on when the mobile phone is out of power and the connector C port is connected to the adapter, and then grounded through the eighth resistor, playing an anti-floating effect. At the same time, the charging circuit is connected through the third pin of the second chip, and the third pin itself has a voltage stabilizing function. When the external input voltage is relatively high, such as 20V, the maximum output through the third pin is only 8V, thereby avoiding burning out the second MOS transistor Q2 and having a better effect on circuit protection.

[0045] A wake-up method for a data cable according to a preferred embodiment of the present invention, the method includes the following steps: inserting the L port of the connector into the device to be charged, the connector is in contact conduction with the PCB board, and then after the protocol adaptation between the L port of the connector and the main control chip or the protocol resistor, the circuit conduction is started to realize wake-up, and the charging circuit performs charging. The specific wake-up method is as described above and will not be repeated here.

[0046] It should be understood that the present invention is described by some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A connector with stable wake-up, comprising a housing, and a PCB board that can be inserted into the housing, the PCB board is provided with a PIN pin, the housing is provided with a PIN pin window corresponding to the PIN pin, and the PIN pin is placed at the PIN pin window after the PCB board is inserted into the housing, characterized in that: The PCB board is provided with a plurality of groups of solder points, and the solder is placed on the solder points to contact the shell to conduct the PCB board and the shell. During the process of inserting the PCB board into the shell, the contact area between the inner wall of the shell and the solder is increased to improve the wake-up stability.

2. The connector according to claim 1, characterized in that: The inner wall of the shell is provided with a tin flow groove, and when the PCB board is inserted into the shell, the solder is squeezed into the tin flow groove to increase the contact surface and contact area between the shell and the solder; Or an arc-shaped protrusion or a strip-shaped protrusion is provided in the shell, and when the PCB board is inserted into the shell, the arc-shaped protrusion squeezes the solder to increase the contact area between the shell and the solder, or when the PCB board is inserted into the shell, the strip-shaped protrusion squeezes the solder out of the groove, and the strip-shaped protrusion is placed in the groove to increase the contact surface and contact area between the shell and the solder.

3. The connector according to claim 2, characterized in that: The shell includes a smooth portion and an outer protrusion connected to the smooth portion, the thickness of the outer protrusion is greater than the thickness of the smooth portion, the tin flow groove, arc-shaped protrusion or strip-shaped protrusion is arranged on the inner wall of the outer protrusion, and two groups of solder points are arranged on the upper and lower sides of the PCB board, and the two groups of solder points are arranged at the brightness of the upper and lower sides, and the inner wall of the outer protrusion is provided with at least one group of tin flow grooves, arc-shaped protrusions or strip-shaped protrusions corresponding to each group of solder points.

4. The connector according to claim 3, characterized in that: The width of the solder point is greater than the sum of the widths of the corresponding multiple groups of solder flow grooves, arc-shaped protrusions or strip-shaped protrusions; The end of the tin flow groove or the strip-shaped protrusion extends to the smooth part, a hollow part is arranged in the middle of the outer protrusion, and the outer protrusions on both sides of the hollow side are both provided with tin flow grooves, arc-shaped protrusions or strip-shaped protrusions.

5. A data cable, comprising an input end connected to an adapter or a power bank, characterized in that: It also includes a stable wake-up connector as described in any one of claims 1-4 connected to the input end, the connector is provided with an output end connected to an external device, a charging circuit is provided between the input end and the output end, the connector also includes a main control circuit, and a start-up circuit connected to the main control circuit, the main control circuit is electrically connected to the charging circuit, the start-up circuit is connected to the output end, and the start-up circuit adapts the input end to the adapter or power bank protocol and then provides an electrical signal to the output end through the charging circuit for charging the external device.

6. The data cable according to claim 5, characterized in that: The startup circuit includes a signal switch module connected to the main control circuit, the signal switch module is also connected to a protocol resistor, the protocol resistor is connected to the input end and the output end, and is electrically connected to the solder point of the connector. The connector drives the signal switch module through the main control circuit to wake up the connector, or transmits the electrical signal to the solder point and then to the shell through the protocol resistor to wake up the connector, thereby turning on the charging circuit and realizing the operation of the charging circuit.

7. The data cable according to claim 6, characterized in that: The signal switch module adopts an NMOS tube, the NMOS tube, the main control chip adopts a second chip, the G level of the NMOS tube is electrically connected to the third pin of the second chip, and the third pin transmits the input voltage to the NMOS tube after stabilizing it to turn on the NMOS tube.

8. The data line according to claim 7, characterized in that: The NMOS tube is connected to an anti-hanging module, the NMOS tube is connected to a second protection module, and a clamping protection module is connected between the main control module and the output end.

9. The data cable according to claim 5, characterized in that: The charging circuit includes a startup module connected to an input end and an output end, and a first protection module connected to the input end. The first protection module is connected to the output end through a power switch module. The first protection module is connected to a main control circuit. When the startup module detects an electrical signal, the power switch module is turned on to allow the charging circuit to flow electrical signals.

10. A data line wake-up method, based on the data line according to any one of claims 5 to 9, characterized in that: The method comprises the following steps: connecting a power bank or an adapter to an input terminal, connecting an output terminal to a peripheral device to be charged, waking up the connector after the startup circuit is turned on, and charging the peripheral device through the charging circuit.

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