Charging protection system, charging protection method and adapter

Abstract

Disclosed in the present application is a charging protection system, the charging protection system being arranged in a housing of an adapter. The charging protection system comprises an abnormal live detection module, a control module, an execution module, and a power supply module used for supplying power to the control module and the execution module. When one of a charging base and a charging gun is connected to the adapter, the abnormal live detection module is configured to detect the live condition of a power terminal assembly. The control module is separately and electrically connected to the abnormal live detection module and the execution module. The execution module contains an execution member. When a detection result of the abnormal live detection module indicates an anomaly, the control module sends an actuation instruction to the execution module. On the basis of the actuation instruction, the execution module instructs the execution member to interfere with the connection of the other one of the charging base and the charging gun.

Description

A charging protection system, a charging protection method and an adapter

[0001] Related applications

[0002] The present application claims priority to and incorporates by reference the entire disclosure of Chinese Patent Application No. 202410645650.5 filed on May 23, 2024. TECHNICAL FIELD

[0003] The present application relates to the technical field of adapters, and more particularly, to a charging protection system, a charging protection method and an adapter. BACKGROUND

[0004] After the PP and CP signal terminals of the current adapter are respectively connected to the charging gun and the charging base, the charging gun and the charging base generate PP signals (charging connection confirmation) and CP signals (control guide signals) for interaction. If the CP signal is correct, the power terminal is allowed to implement charging. The above-mentioned adapter can only judge and control whether to allow charging after being connected to both the charging gun and the charging base. However, when the adapter is connected to the charging gun but not connected to the charging base, or connected to the charging base but not connected to the charging gun, it is unable to process abnormal situations such as abnormal electrification of the power terminal and prevent the continued connection with the charging base or the charging gun, which may lead to equipment damage or safety accidents due to non-normal state electrical connection. SUMMARY

[0005] The present application provides a charging protection system, a charging protection method and an adapter to solve the problem that the existing adapter is unable to process abnormal situations such as abnormal electrification of the power terminal and prevent the connection with the other one of the charging base and the charging gun when connected to one of the charging gun and the charging base.

[0006] The charging protection system provided by the application is arranged in the shell of an adapter, the two ends of the adapter are provided with a signal terminal assembly and a power terminal assembly for connecting a charging base and a charging gun, and the charging protection system comprises an abnormal electrification detection module, a control module and an execution module, and a power supply module. The abnormal electrification detection module is electrically connected with the power terminal assembly and is configured to detect the electrification condition of the power terminal assembly when one of the charging base and the charging gun is connected to the adapter. The input end of the control module is electrically connected with the abnormal electrification detection module, the output end is electrically connected with the input end of the execution module, and the output end of the execution module is electrically connected with an execution member. The control module is configured to send an action instruction to the execution module when the detection result of the abnormal electrification detection module is abnormal. The execution module is configured to instruct the execution member to perform a corresponding action according to the action instruction, so as to interfere with the connection of the other one of the charging base and the charging gun. The power supply module is electrically connected with the control module and the execution module to realize power supply.

[0007] The charging protection method provided by the application comprises an abnormal electrification detection process, and the abnormal electrification detection process comprises the following steps: S1, connecting a charging gun or a charging base to an adapter; S2, an abnormal electrification detection module detects whether the power terminal assembly is electrified and outputs a detection result to a control module; and S3, the control module acquires the detection result, if the power terminal assembly is not electrified, the charging base or the charging gun is allowed to be connected to the adapter for charging, if the power terminal assembly is electrified, the control module sends an action instruction to an execution module, and the execution module instructs an execution member to perform an action of interfering with the connection of the charging base or the charging gun to the adapter after receiving the action instruction.

[0008] The adapter provided by the application comprises a shell and a signal terminal assembly, a power terminal assembly and a circuit board arranged in the shell, and the circuit board is integrated with the charging protection system as described above.

[0009] The beneficial effects of the application include:

[0010] In the application, the abnormal electrification detection module can detect the electrification of the power terminal, so as to judge the abnormal electrification of the power terminal of the charging gun or the charging base when the adapter is connected to the charging gun or the charging base. If the power terminal of the charging gun or the charging base is abnormally electrified, the execution member can perform a corresponding action of interfering with the connection of the charging base or the charging gun, so as to finally remind the user that there is a problem in the charging operation, and to avoid the damage of the equipment or the occurrence of safety accidents caused by the continuous connection and charging in the abnormal state.

[0011] Other advantages contained in the application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the implementation of the application.

[0012] Other features and advantages of the present application will become apparent from the following detailed description of illustrative embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0014] Fig. 1 is a module diagram of the charging protection system of the present application;

[0015] Fig. 2 is a flow chart diagram of the charging protection method of the present application;

[0016] Fig. 3 is a flow chart diagram of the adapter starting self-checking in the charging protection method of the present application;

[0017] Fig. 4 is a flow chart diagram of the AC / DC judgment process in the charging protection method of the present application;

[0018] Fig. 5 is a perspective view of the adapter of the present application from one view;

[0019] Fig. 6 is a perspective view of the adapter of the present application from another view;

[0020] Fig. 7 is a cutaway structural schematic view of the adapter of the present application;

[0021] Fig. 8 is a partial enlarged schematic view of the first electric telescopic member at the seat end in Fig. 7.

[0022] The symbols in the figures are as follows: 1, housing; 11, gun end; 12, seat end; 13, power switch; 2, gun end CP signal terminal; 21, seat end CP signal terminal; 3, gun end power terminal; 31, seat end power terminal; 4, main control board; 41, high-voltage circuit board; 5, storage battery; 6, gun end first electric telescopic member; 61, seat end first electric telescopic member; 611, body; 612, abutting portion; 7, gun end second electric telescopic member; 71, seat end second electric telescopic member; 8, gun end clamping member; 81, seat end clamping member; 9, gun end trigger switch; 91, seat end trigger switch; 10, seat end induction switch; 101, prompt induction switch; 102, light-emitting diode; 103, light-transmitting block. DETAILED DESCRIPTION

[0023] Various illustrative embodiments of the present application will now be described in detail with reference to the accompanying figures. It should be noted that the relative arrangements of the components and steps set forth in the embodiments, as well as the numerical expressions and values, are not limitations on the scope of the present application unless specifically stated otherwise.

[0024] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the scope of the application or its application or uses.

[0025] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and devices can be considered part of the present disclosure.

[0026] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0027] In a first aspect, as shown in FIG. 1, the embodiments of the present application provide a charging protection system, which is arranged in a housing of an adapter, the adapter is provided with a signal terminal assembly and a power terminal assembly at two ends, and the signal terminal assembly and the power terminal assembly are both used for connecting a charging base and a charging gun. The charging protection system comprises an abnormal electrification detection module, a control module and an execution module, and a power supply module. The abnormal electrification detection module is electrically connected with the power terminal assembly, and the power terminal assembly is schematically shown by a DC line in FIG. 1. The abnormal electrification detection module is used for detecting the electrification of the power terminal assembly when one of the charging base and the charging gun is connected to the adapter. The input end of the control module is electrically connected with the output end of the abnormal electrification detection module, the output end of the control module is electrically connected with the input end of the execution module, and the output end of the execution module is electrically connected with an execution member. The control module is configured to send an action instruction to the execution module when the detection result of the abnormal electrification detection module is abnormal. The execution module is configured to instruct the execution member to perform a corresponding action according to the action instruction, so as to interfere with the connection of the other one of the charging base and the charging gun. The "interference" can be understood as "obstruction". The power supply module is electrically connected with the control module and the execution module respectively to realize power supply.

[0028] In the charging protection system, the abnormal electrification detection module can detect the electrification of the power terminal of the charging gun / charging base, so as to judge the abnormal electrification of the power terminal of the charging gun / charging base when the adapter is connected with the charging gun / charging base. If the power terminal of the charging gun / charging base is abnormally electrified, the power terminal assembly in the adapter which is electrically connected with the power terminal of the charging gun / charging base will also be electrified, so that the detection result of the abnormal electrification detection module is abnormal. At this time, the control module can send an action instruction to the execution module, and finally the execution member performs a corresponding action of interfering with the connection of the charging base / charging gun and the adapter. Before the adapter connects the charging gun and the charging base, the purpose of reminding the user that there is a problem in the charging operation is achieved, so as to avoid the damage of the equipment or the occurrence of safety accidents caused by the continuous connection and charging in the abnormal state, and the safety protection capability is improved.

[0029] Further, in the charging protection system, the abnormal electrification detection module is a voltage detection component connected in parallel with the power terminal assembly, and the output end of the voltage detection component is electrically connected with the input end of the control module. Specifically, the voltage detection component is a voltage sensor that can convert a digital signal (measured voltage signal) into an analog signal (signal recognizable by the control module).

[0030] Further, in the charging protection system, the execution member includes a telescopic member having a telescopic function. When the adapter has been connected to one of the charging gun and the charging base, the telescopic member is extended to prevent the other one of the charging gun and the charging base from being connected to the adapter. When the telescopic member is retracted, the other one of the charging gun and the charging base can be normally connected to the adapter.

[0031] Specifically, the execution member is arranged at both ends of the adapter, i.e., both ends of the adapter are provided with the telescopic member, so that the adapter can interfere with the connection of the charging base when the adapter is connected to the charging gun and can interfere with the connection of the charging gun when the adapter is connected to the charging base.

[0032] More specifically, the execution member can be a telescopic device such as an electric push rod or a push-pull electromagnet. The electric push rod and the push-pull electromagnet are both prior art. In the charging protection system, the push-pull electromagnet is selected. The push-pull electromagnet has the following advantages: when the adapter is connected to one end but the control module cannot determine whether the adapter is connected to the charging gun or the charging base, the control module and the execution module cannot control the telescopic member at the other end of the adapter to perform the interference action, and when the detection result of the abnormal electrification detection module is abnormal, the execution module instructs all telescopic members at both ends of the adapter to perform the interference action after receiving the action instruction sent by the control module. Since the telescopic member is a push-pull electromagnet and the adapter is connected to the charging gun or the charging base and is locked by a preset locking mechanism such as a lock, although all telescopic members perform the interference action, the telescopic member at the end of the adapter that has been connected cannot be effectively extended due to the obstruction of the charging gun or the charging base. Based on the magnetic driving principle and structure of the push-pull electromagnet, the push-pull electromagnet as the telescopic member will not be damaged when it cannot be effectively extended, i.e., it will not affect the normal use of the adapter, so that although the telescopic members at both ends of the adapter are instructed to perform the interference action, only the telescopic member at the end of the adapter that has not been connected performs the interference action.

[0033] Further, the signal terminal assembly includes a CP signal terminal assembly and a PP signal terminal assembly, the CP signal terminal assembly is schematized by a CP line in FIG. 1, and the PP signal terminal assembly is schematized by a PP line in FIG. 1, the CP signal terminal assembly is available for CP signal transmission, the CP signal can be used to determine the AC / DC type of the charging current, the PP signal terminal assembly is available for PP signal transmission, and the PP signal can be used to confirm whether the connection is valid. The charging protection system further includes an AC / DC judgment module, the AC / DC judgment module is electrically connected with the power supply module, and the input end of the AC / DC judgment module is electrically connected with the CP signal terminal assembly, and the output end of the AC / DC judgment module is electrically connected with the input end of the control module, so that when the charging gun is connected to the charging protection system, the AC / DC judgment module judges the signal type on the CP signal terminal assembly and sends the judgment result to the control module, and the control module sends an action instruction to the execution module when the judgment result of the AC / DC judgment module does not conform to the preset correct signal type, and the execution module executes the corresponding action according to the action instruction to interfere with the connection of the charging base.

[0034] For example, the correct signal type preset by the control module is direct current (DC), but the AC / DC judgment module judges that the AC / DC type of the charging current carried by the CP signal is alternating current (AC) and sends the judgment result to the control module, at this time, the judgment result received by the control module obviously does not conform to the preset correct signal type, and then the control module sends an action instruction to the execution module.

[0035] Further, the AC / DC judgment module can be an AC / DC voltage detection circuit.

[0036] Further, since the dangerous level of the abnormal charging of the power terminal is higher than that of the AC / DC type error of the charging current, in order to preferentially handle abnormal situations with high dangerous level, in the charging protection system, when the abnormal charging detection module and the AC / DC judgment module both feedback signals, the control module is set to preferentially handle the signal feedback by the abnormal charging detection module, and then handle the signal feedback by the AC / DC judgment module.

[0037] Further, in order to increase the safety measures to block the charging operation and avoid the failure of the execution interference action to prevent the charging operation, in the charging protection system, a circuit breaker connected with the power supply module is connected in series on the PP signal terminal assembly, the control end of the circuit breaker is electrically connected to the output end of the control module, and the control module sends a disconnecting instruction to the circuit breaker at the same time when sending an action instruction to the execution module, so as to disconnect the connection of the PP signal terminal assembly, so that the PP signal cannot be transmitted, and then even if the adapter is connected between the charging gun and the charging base, the charging operation cannot continue.

[0038] Further, the setting and interference mode of the aforementioned execution member can adopt the following form: at least one clamping member for clamping the charging base or the charging gun is arranged on the outer side of the shell and rotates, one end of the clamping member constitutes a clamping end, and the other end constitutes a pressing end, the execution member includes a first electric telescopic member with a telescopic end, the first electric telescopic member is arranged in the shell and at least partially penetrates the shell after the telescopic end is extended and extends below the pressing end of the clamping member, and the first electric telescopic member performs an extension action after the control module issues an action instruction. That is, when the adapter needs to interfere with the access of the charging base or the charging gun, the first electric telescopic member extending towards the charging base so that the clamping member towards the charging base or the charging gun cannot rotate and press, so that the charging base or the charging gun cannot be clamped with the adapter through the clamping member, so that the charging base or the charging gun cannot access the adapter, and the purpose of interfering with the access of the charging base or the charging gun is achieved.

[0039] Specifically, in the present charging protection system, one clamping member and one first electric telescopic member are arranged at each end of the shell to meet the requirement of interfering with the access of the charging base or the charging gun. In addition, the clamping member can be one of the aforementioned "pre-set locking mechanism", that is, the clamping member can be a lock that locks the connection of the adapter with the charging base or the charging gun.

[0040] Further, in order to check whether the execution member is in the preset initial action position when the adapter is in the initial state of not being connected with the charging gun and the charging base, facilitate the discovery of whether the execution member is faulty, and prevent the execution member from working with faults, in the case that the signal terminal assembly includes a CP signal terminal assembly and a PP signal terminal assembly and the PP signal terminal assembly is connected in series with a circuit breaker that is electrically connected with the power supply module and the control module, the present charging protection system is provided with a sensing switch in the shell that is electrically connected with the control module and is used for sensing the action position of the execution member, the control module acquires and verifies the actual action position of the execution member through the sensing switch when the adapter is in the initial state, and sends a disconnection instruction to the circuit breaker when the verification result does not conform to the preset action position, so that the PP signal terminal assembly cannot transmit the PP signal, thereby preventing the charging operation from continuing even when the adapter can be connected with the charging gun and the charging base in the case of execution member failure.

[0041] For example, the execution member should be in the completely retracted action position when the adapter is in the initial state, but actually the execution member is in the un-retracted action position, that is, the execution member itself is faulty and is in an abnormal working state, at this time the control module verifies through the sensing switch that the execution member does not conform to the preset action position, and then controls the circuit breaker to be disconnected so that the PP signal terminal assembly cannot transmit the PP signal.

[0042] Further, in order to prevent the risk of electric leakage caused by the loosening of the connection between the adapter and the charging gun / charging seat due to the accidental pressing of the clamping piece when the charging operation has been normally carried out, the pressing end of the clamping piece is provided below with a trigger switch electrically connected to the control module. When the adapter is connected to the charging gun and the charging seat and the charging operation is carried out, the pressing end of the clamping piece is triggered and pressed down to trigger the trigger switch to send a trigger signal to the control module. The control module sends a disconnection instruction to the circuit breaker according to the trigger signal, so as to disconnect the transmission of the PP signal and further disconnect the ongoing charging operation.

[0043] In a second aspect, as shown in FIG. 2, the embodiment of the present application provides a charging protection method, which includes an abnormal electrification detection process, and the abnormal electrification detection process includes the following steps: S1, connecting the charging gun / charging seat to the adapter; S2, detecting whether the power terminal assembly is electrified by the abnormal electrification detection module, and outputting the detection result to the control module; S3, the control module acquires the detection result, if the power terminal assembly is not electrified, the charging seat / charging gun is allowed to be connected to the adapter for charging, if the power terminal assembly is electrified, the control module sends an action instruction to the execution module, and the execution module indicates the execution piece to execute the action of interfering the connection of the charging seat / charging gun to the adapter after receiving the action instruction.

[0044] In the charging protection method, first, whether the power terminal of the connected charging gun / charging seat is abnormally electrified is detected. If it is detected that the power terminal is abnormally electrified, the connection of the charging seat / charging gun is interfered to avoid the damage of the equipment or the occurrence of safety accidents caused by the continuous connection and charging in the abnormal state. If it is detected that the power terminal is not abnormally electrified, the connection and charging are allowed to continue, so as to realize the detection and protection before the adapter connects the charging gun and the charging seat, and improve the safety protection capability.

[0045] Further, in order to improve the practicability and reliability of the detection, in the step S2, when the abnormal electrification detection module detects whether the power terminal assembly is electrified, the detected signal is a voltage signal.

[0046] Further, in order to enable the adapter to self-check, prevent the execution member from malfunctioning, and ensure the smooth progress of the above protection method, as shown in FIG. 3, the charging protection method further includes a step S0 of starting self-checking of the adapter before step S1: after the power supply module supplies power, the control module checks the initial action position of the execution member through the inductive switch, and if the initial action position of the execution member meets the preset initial action position, step S1 is performed, and if the initial action position of the execution member does not meet the preset initial action position, the control module sends a blocking instruction to the circuit breaker connected to the PP signal terminal assembly, and the circuit breaker disconnects the connection of the PP signal terminal assembly after receiving the blocking instruction. It can be understood that after the circuit breaker disconnects the connection of the PP signal terminal assembly, step S1 and subsequent steps S2 and S3 can still be performed, but regardless of the results of step S1 and subsequent steps S2 and S3, the charging operation cannot be performed again.

[0047] Further, as shown in FIG. 4, in order to enable the adapter to also determine the AC / DC type of the charging current provided by the charging gun when the charging gun is connected to the adapter, and to interfere with the connection of the charging base when the types do not match, the charging protection method further includes an AC / DC determination process when the charging gun is connected to the adapter, which includes: step a, the AC / DC determination module determines the CP signal type and outputs the determination result to the control module; b, the control module obtains the determination result, and if the determination result meets the preset correct signal type, the charging base is allowed to be connected to the adapter, and if the determination result does not meet the preset correct signal type, the control module sends an action instruction to the execution module, and the execution module drives the execution member to perform an action to interfere with the connection of the charging base to the adapter.

[0048] Further, since the dangerous level of the abnormal power terminal is higher than that of the AC / DC type error of the charging current, in order to prioritize the processing of abnormal conditions with high dangerous levels, in the charging protection method, the abnormal power detection process is prioritized over the AC / DC determination process.

[0049] Further, in the charging protection method, in order to improve the protection effect and increase the protection capability while interfering with the connection of the charging base or the charging gun, for the abnormal power detection process and the AC / DC determination process, the control module sends a disconnection instruction to the circuit breaker connected to the PP signal terminal assembly while sending an action instruction to the execution module, and the circuit breaker disconnects the connection of the PP signal terminal assembly after receiving the disconnection instruction, so that if the interference with the connection fails and the adapter is connected to the charging base and the charging gun, the charging operation can still not be performed.

[0050] Further, the adapter can have the following structure: at least one clamping piece for clamping the charging base / charging gun is arranged on the outer side of the shell of the adapter, one end of the clamping piece constitutes a clamping end, and the other end constitutes a pressing end, the execution piece includes a first electric telescopic piece having a telescopic end, the first electric telescopic piece is arranged in the shell and the telescopic end at least partially penetrates the shell after being extended and extends below the pressing end of the clamping piece. Under the premise that the adapter has the above structure, when the charging gun and the charging base are both connected to the adapter and charging operation is performed, the charging protection method can further include a clamping mistaken release prevention process, the clamping mistaken release prevention process includes: the control module sends an action instruction to the execution module, and the execution module extends the telescopic end of the first electric telescopic piece below the pressing end of the clamping piece according to the action instruction to prevent the clamping piece from being mistakenly released from the clamping with the charging base / charging gun.

[0051] In a third aspect, as shown in FIGS. 5-7, embodiments of the present application provide an adapter, which includes a shell 1 and a signal terminal assembly, a power terminal assembly and a circuit board arranged in the shell 1, and the circuit board is integrated with the charging protection system as described above. The signal terminal assembly is used for transmitting electrical signals, and the power terminal assembly is used for transmitting electrical power.

[0052] The following will be described in more detail.

[0053] The shell 1 has a seat end 12 and a gun end 11 at two ends thereof, respectively, for connecting with the charging base and the charging gun.

[0054] The signal terminal assembly includes a CP signal terminal assembly and a PP signal terminal assembly. The CP signal terminal assembly includes a gun end CP signal terminal 2 and a seat end CP signal terminal 21, which are arranged in the gun end 11 and the seat end 12 of the shell 1, respectively, and are connected through the circuit board. In addition, a circuit breaker is integrated on the circuit board, the control end of the circuit breaker is electrically connected to the output end of the control module, the circuit breaker is used for connecting and disconnecting the gun end CP signal terminal 2 and the seat end CP signal terminal 21, and the circuit breaker can be a relay or other electrical device having a circuit breaking function. The PP signal terminal assembly includes a gun end PP signal terminal and a seat end PP signal terminal, which are arranged in the gun end 11 and the seat end 12 of the shell 1, respectively, and are also connected through the circuit board.

[0055] The power terminal assembly includes a gun end power terminal 3 and a seat end power terminal 31, which are connected through a connection row in the shell 1.

[0056] The circuit board fixedly installed in the shell 1 is integrated with a charging protection system composed of an abnormal electrification detection module, a control module and an execution module, an AC / DC judgment module and the like, wherein the abnormal electrification detection module is electrically connected with the power terminal assembly, and the AC / DC judgment module is electrically connected with the CP signal terminal assembly.

[0057] The power terminal of the charging gun / charging base can be subjected to electrification detection in the adapter, and the adapter can interfere with the access of the charging base / charging gun when abnormal electrification occurs, so as to realize the purpose of reminding the user that there is a problem in the charging operation before the adapter connects the charging gun and the charging base, avoid the continuous connection and charging in the abnormal state to cause the damage of the equipment or the occurrence of safety accidents, and improve the safety protection capability.

[0058] Further, in the adapter, in order to facilitate the installation and connection of the signal terminal assembly, the above-mentioned circuit board in the shell 1 is divided into two, one of which is a main control board 4 integrated with system modules such as the control module, the execution module and the AC / DC judgment module, and the other is a high-voltage circuit board 41 integrated with the abnormal electrification detection module. The above-mentioned main control board 4 and high-voltage circuit board 41 are respectively located at two ends of the shell 1, and there is a gap between them and they are electrically connected through a multi-pin adapter connector, so as to realize the electrical connection of the signal terminal assembly and the electrical connection of the abnormal electrification detection module and the control module. The number of pins of the adapter connector is set according to the actual need of electric conduction transmission. The design of dividing the circuit board into the spaced main control board 4 and high-voltage circuit board 41 also has the effect of preventing the interference of high and low voltage circuits and the like. The above-mentioned adapter row is arranged between the main control board 4 and the high-voltage circuit board 41, and can fully utilize the space in the shell 1. The abnormal electrification detection module on the high-voltage circuit board 41 is actually electrically connected with the adapter row.

[0059] Further, in the adapter, the outer side of each end of the shell 1 is rotatably provided with a clamping piece for clamping the charging base / charging gun, which are respectively a base end clamping piece 81 and a gun end clamping piece 8. For each clamping piece, one end constitutes a clamping end, and the other end constitutes a pressing end. The trigger switch is arranged below the pressing end, that is, the base end trigger switch 91 is arranged below the pressing end of the base end clamping piece 81, and the gun end trigger switch 9 is arranged below the pressing end of the gun end clamping piece 8. The base end trigger switch 91 and the gun end trigger switch 9 are electrically connected with the input end of the control module as the trigger switch. The trigger switch can be a press switch.

[0060] Further, the execution member of the execution module comprises a first electric telescopic member with a telescopic end, the first electric telescopic member is arranged in the shell 1 and the telescopic end at least partially penetrates the shell 1 and extends below the pressing end of the clamping member after being extended, and the first electric telescopic member performs the extension action after the control module sends the action instruction. Specifically, in the adapter, the first electric telescopic member comprises a seat-end first electric telescopic member 61 and a gun-end first electric telescopic member 6, the seat-end first electric telescopic member 61 is arranged in the shell 1 and the telescopic end at least partially penetrates the shell 1 and extends below the pressing end of the seat-end clamping member 81 after being extended, so as to interfere with the access of the charging seat, and the gun-end first electric telescopic member 6 is arranged in the shell 1 and the telescopic end at least partially penetrates the shell 1 and extends below the pressing end of the gun-end clamping member 8 after being extended, so as to interfere with the access of the charging gun.

[0061] Further, in order to strengthen the interference ability and provide double insurance, the execution member further comprises a second electric telescopic member with a telescopic end, the second electric telescopic member is arranged in the shell 1 and the telescopic end at least partially penetrates the shell 1 and extends into the end of the shell 1 connected with the charging seat / gun, so as to interfere with the access of the charging seat / gun after the charging gun / seat is connected with the adapter. Specifically, in the adapter, the second electric telescopic member comprises a seat-end second electric telescopic member 71 and a gun-end second electric telescopic member 7, the seat-end second electric telescopic member 71 is arranged in the shell 1 and the telescopic end at least partially penetrates the shell 1 and extends into the end of the shell 1 connected with the charging seat, so as to interfere with the access of the charging seat, and the gun-end second electric telescopic member 7 is arranged in the shell 1 and the telescopic end at least partially penetrates the shell 1 and extends into the end of the shell 1 connected with the charging gun, so as to interfere with the access of the charging gun.

[0062] The execution member, i.e., the seat-end first electric telescopic member 61 and the gun-end first electric telescopic member 6, the seat-end second electric telescopic member 71 and the gun-end second electric telescopic member 7, can be a push-pull electromagnet.

[0063] Further, the shell 1 is provided with an inductive switch electrically connected with the control module and used for sensing the action position of the execution member, so that the control module acquires and verifies the action position of the execution member.

[0064] In the adapter, as an example, an induction switch is arranged on the first electric telescopic member. The induction switch can be a press switch. Specifically, for example, the seat end first electric telescopic member 61 is provided with a seat end induction switch 10 on the body 611. When one end of the seat end first electric telescopic member 61 is extended, the abutting portion 612 arranged at the other end is close to the seat end induction switch 10 and abuts against it, thereby triggering the seat end induction switch 10, and further enabling the control module to obtain the information that the seat end first electric telescopic member 61 is in the extended action position. When one end of the seat end first electric telescopic member 61 is retracted, the abutting portion 612 at the other end is away from the seat end induction switch 10 and abuts against it, thereby the control module cannot obtain the information that the seat end first electric telescopic member 61 is in the extended action position, that is, the seat end first electric telescopic member 61 has left the extended action position, and finally meets the need of the control module to obtain and verify the action position of the execution member.

[0065] Further, as shown in FIGS. 7 and 8, in the adapter, as an example, the body of the seat end first electric telescopic member 61 is further provided with a prompt induction switch 101. The prompt induction switch 101 is arranged side by side with the seat end induction switch 10, so that when the abutting portion 612 at the other end of the seat end first electric telescopic member 61 is close to the seat end induction switch 10 and abuts against it, the abutting portion 612 can be close to and abut against the prompt induction switch 101 at the same time. In addition, the prompt induction switch 101 is connected in series with a light-emitting diode 102. The housing 1 is provided with a light-transmitting block 103 at a position corresponding to the light-emitting diode 102, so that when the control module obtains the information that the seat end first electric telescopic member 61 is in the extended action position, the light-emitting diode 102 emits light, and the operator can simultaneously perceive the information that the seat end first electric telescopic member 61 is in the extended action position. The light-emitting diode 102, the prompt induction switch 101 and the power supply module are connected in series, and the prompt induction switch 101 is independent of the seat end induction switch 10, so that when the seat end induction switch 10 fails to normally send information to the control module, the professional maintenance personnel can continue to obtain whether the seat end first electric telescopic member 61 is in the extended action position through the prompt induction switch 101, thereby facilitating the judgment of whether the fault is caused by the seat end induction switch 10.

[0066] The above light-emitting diode 102 constitutes a signal unit. The signal display unit can also be other devices such as a buzzer, a liquid crystal display screen, etc. that can emit sound and light information that can be perceived by the operator after being powered on.

[0067] Further, in order to ensure the normal work of the power supply module, the power supply module includes a storage battery 5, and the housing 1 is provided with a charging interface for charging the storage battery 5 and a power switch 13 for connecting / disconnecting the power supply of the storage battery 5.

[0068] In other embodiments, the power supply module can also be configured as a replaceable battery type structure, such as a battery compartment and a detachable cover in the shell 1, and a battery is installed in the battery compartment to realize the power supply function.

[0069] The following is an example description of the actual use process of the adapter in combination with the charging protection system of the first aspect and the charging protection method of the second aspect.

[0070] 1. Take out the adapter and press the power switch 13. The adapter initializes and performs self-checking.

[0071] 1.1. Initialization.

[0072] After the power supply module supplies power, the control module sends an initialization instruction to the execution module and the circuit breaker. The execution module performs a synchronous retraction action according to the initialization instruction (the execution member that is already in the retracted state remains in the retracted state) for the seat end first electric telescopic member 61, the gun end first electric telescopic member 6, the seat end second electric telescopic member 71, and the gun end second electric telescopic member 7. The circuit breaker connects the gun end PP signal terminal and the seat end PP signal terminal according to the initialization instruction (if it is already in the connected state, it remains in the connected state).

[0073] 1.2. Self-checking.

[0074] The control module obtains and verifies the action position of the execution member. If the initial action state of the execution member is actually the extended state and does not conform to the preset initial action retracted state, the circuit breaker disconnects the gun end PP signal terminal and the seat end PP signal terminal. At this time, the charging gun or the charging base cannot be connected, even if it can be connected, the transmission of the PP signal cannot be established, and the charging operation cannot be implemented, thereby reminding the user that the equipment has a problem and needs to be checked and processed by a professional maintenance personnel.

[0075] 2. When the self-checking is normal, connect the adapter to the charging gun or the charging base.

[0076] 2.1. Connecting the charging gun.

[0077] At this time, the gun end 11 of the adapter is clamped with the charging gun through the gun end clamping member 8, so that the adapter and the charging gun are fixedly connected, the gun end power terminal 3 of the adapter and the power terminal of the charging gun are in conductive connection, and the gun end CP signal terminal 2 of the adapter and the CP signal terminal of the charging gun are in conductive connection.

[0078] 2.1.1. Abnormal charging detection of the charging gun.

[0079] The abnormal charging detection module detects whether the power terminal of the charging gun is charged through the adapter row and the gun end power terminal 3.

[0080] If the abnormal charging detection module detects that the power terminal of the charging gun is charged, a voltage signal is sent to the control module, the control module sends an action instruction to the execution module, and the execution module instructs the seat end first electric telescopic piece 61, the gun end first electric telescopic piece 6, the seat end second electric telescopic piece 71 and the gun end second electric telescopic piece 7 to perform the extension action simultaneously according to the action instruction. During this period, since the adapter and the charging gun have been fixedly connected, the gun end second electric telescopic piece 7 cannot actually effectively extend. Finally, the extension of the seat end first electric telescopic piece 61 and the seat end second electric telescopic piece 71 makes the charging base unable to be inserted into the seat end of the adapter, thereby realizing the purpose of interfering with the insertion of the charging base after the abnormal charging of the charging gun, reminding the user that the equipment has a problem and needs to be checked and processed by a professional maintenance personnel.

[0081] The control module sends an action instruction to the execution module, and also sends an opening instruction to the circuit breaker connected to the gun end PP signal terminal and the seat end PP signal terminal to disconnect the connection of the PP signal terminal assembly, so that if the interference with the insertion of the charging base fails, the charging operation can still not be continued.

[0082] If the abnormal charging detection module does not detect that the power terminal of the charging gun is charged, the next step is AC / DC judgment.

[0083] 2.1.2, AC / DC judgment.

[0084] The AC / DC judgment module obtains the CP signal on the CP signal terminal of the charging gun through the gun end CP signal terminal 2, and judges the AC / DC type of the charging current recorded in the CP signal. If the judgment result does not conform to the correct signal type preset by the control module, i.e. the direct current (DC) type, the control module sends an action instruction to the execution module after receiving the judgment result, and the execution module instructs the seat end first electric telescopic piece 61, the gun end first electric telescopic piece 6, the seat end second electric telescopic piece 71 and the gun end second electric telescopic piece 7 to perform the extension action simultaneously according to the action instruction. Similarly, during this period, since the adapter and the charging gun have been fixedly connected, the gun end second electric telescopic piece 7 cannot actually effectively extend. Finally, the extension of the seat end first electric telescopic piece 61 and the seat end second electric telescopic piece 71 makes the charging base unable to be inserted into the seat end 12 of the adapter, thereby realizing the purpose of interfering with the insertion of the charging base after the charging current type error of the charging gun, reminding the user that the equipment has a problem and needs to be checked and processed by a professional maintenance personnel.

[0085] The control module sends an action instruction to the execution module, and also sends an opening instruction to the circuit breaker connected to the gun end PP signal terminal and the seat end PP signal terminal to disconnect the connection of the PP signal terminal assembly, so that if the interference with the insertion of the charging base fails, the charging operation can still not be continued.

[0086] If the result of the AC / DC judgment module is consistent with the preset correct signal type, the control module does not send the action instruction to the execution module, nor does it send the disconnection instruction to the circuit breaker, allowing the charging base to access the adapter and implement the charging operation.

[0087] 2.2, access the charging base.

[0088] At this time, the seat end 12 of the adapter is clamped by the seat end clamp 81, so that the adapter and the charging base are fixedly connected, the seat end power terminal 31 of the adapter is in conductive connection with the power terminal of the charging base, and the seat end CP signal terminal 21 of the adapter is in conductive connection with the CP signal terminal of the charging base.

[0089] Subsequently, abnormal charging detection of the charging base is started, that is, the abnormal charging detection module detects whether the power terminal of the charging base is charged through the adapter row and the seat end power terminal 31.

[0090] If the abnormal charging detection module detects that the power terminal of the charging base is charged, a voltage signal is sent to the control module, the control module sends an action instruction to the execution module, and the execution module executes the extension action according to the action instruction. The seat end first electric telescopic member 61, the gun end first electric telescopic member 6, the seat end second electric telescopic member 71 and the gun end second electric telescopic member 7 are synchronously executed, and during the extension action, since the adapter and the charging base have been fixedly connected, the seat end second electric telescopic member 71 cannot be effectively extended. Finally, the extension of the gun end first electric telescopic member 6 and the gun end second electric telescopic member 7 makes the charging gun unable to be inserted into the gun end of the adapter, so as to achieve the purpose of interfering with the insertion of the charging gun after the charging base is abnormally charged, reminding the user that the equipment has a problem and needs to be checked and handled by a professional maintenance personnel.

[0091] At the same time, the control module sends an action instruction to the execution module, and also sends a disconnection instruction to the circuit breaker connected to the gun end PP signal terminal and the seat end PP signal terminal, so as to disconnect the connection of the PP signal terminal assembly, so that if the charging gun fails to be interfered with, the charging operation can still not be implemented.

[0092] If the abnormal charging detection module does not detect that the power terminal of the charging base is charged, the control module does not send the action instruction to the execution module, nor does it send the disconnection instruction to the circuit breaker, allowing the charging gun to access the adapter and implement the charging operation.

[0093] It should be noted that since the charging gun is accessed first and then the charging base is accessed, the AC / DC judgment of the charging gun cannot be performed, and the charging operation may still not be implemented due to the mismatch of the charging current type of the charging gun. Therefore, the operation regulation of "access the charging gun first" or the like can be indicated in the operation instruction of the adapter.

[0094] 3. The charging operation is performed after the charging gun and the charging base are connected to the adapter.

[0095] At this time, the adapter normally connects the charging gun and the charging base, and normal power transmission and signal transmission are established between the charging gun and the charging base.

[0096] 3.1. Safety guarantee measure one for the charging operation.

[0097] After the normal charging operation is performed, since the power transmission has started on the switching row, the abnormal live detection module sends a voltage signal to the control module, and according to the preset control logic, the control module sends an action instruction to the execution module at this time. The execution module executes the extension action of the seat end first electric telescopic part 61, the gun end first electric telescopic part 6, the seat end second electric telescopic part 71 and the gun end second electric telescopic part 7 according to the action instruction. During this period, since the adapter is fixedly connected with the charging gun and the charging base, the gun end second electric telescopic part 7 and the seat end second electric telescopic part 71 cannot actually effectively extend. Finally, the extension of the seat end first electric telescopic part 61 and the gun end first electric telescopic part 6 respectively makes the seat end clamping part 81 and the gun end clamping part 8 unable to be pressed, that is, the charging base and the charging gun cannot be disconnected with the adapter, thereby preventing the clamping from being disconnected due to accidental pressing and ensuring the safety during the charging operation.

[0098] In this process, if either the seat end first electric telescopic part 61 or the gun end first electric telescopic part 6 cannot extend due to failure or other factors, or both cannot extend, the corresponding induction switch cannot be triggered, and the control module cannot obtain the information that the seat end first electric telescopic part 61 and the gun end first electric telescopic part 6 are in the extension action position. At this time, the control module can send a disconnect instruction to the circuit breaker, thereby disconnecting the transmission of the PP signal and further disconnecting the ongoing charging operation, thereby preventing the risk that the clamping can be disconnected due to the inability of the seat end first electric telescopic part 61 and the gun end first electric telescopic part 6 to prevent the seat end clamping part 81 and the gun end clamping part 8 from being pressed.

[0099] 3.2. Safety guarantee measure two for the charging operation.

[0100] When the pressing end of the gun end clamping part 8 or the seat end clamping part 81 is accidentally pressed due to failure or external force, the gun end trigger switch 9 or the seat end trigger switch 91 is triggered to send a trigger signal to the control module. The control module sends a disconnect instruction to the circuit breaker according to the trigger signal, thereby disconnecting the transmission of the PP signal and further disconnecting the ongoing charging operation, thereby preventing the risk of electric leakage that may occur after the connection of the adapter with the charging gun and the charging base has the risk of being disconnected.

[0101] 4. The charging is completed, and the adapter is withdrawn.

[0102] After the normal charging operation is completed, the charging gun stops supplying power, the abnormal live detection module no longer sends the voltage signal to the control module, according to the preset control logic, at this time the control module sends the action instruction to the execution module, the execution module executes the extension action according to the action instruction, and then the first electric telescopic member 61 at the seat end, the first electric telescopic member 6 at the gun end, the second electric telescopic member 71 at the seat end and the second electric telescopic member 7 at the gun end are pressed, the adapter is removed, the power supply of the power supply module is turned off after the adapter is pressed, and the adapter is recovered.

[0103] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A charging protection system arranged in a housing of an adapter, signal terminal assemblies and power terminal assemblies for connecting a charging base and a charging gun are arranged at both ends of the adapter, wherein, The charging protection system comprises: The abnormal charging detection module is electrically connected with the power terminal assembly and is configured to detect the charging condition of the power terminal assembly when one of the charging base and the charging gun accesses the adapter; The control module and the execution module, the input end of the control module being electrically connected with the abnormal charging detection module, the output end of the control module being electrically connected with the input end of the execution module, the output end of the execution module being electrically connected with an execution member, the control module being configured to send an action instruction to the execution module when the detection result of the abnormal charging detection module is abnormal, the execution module being configured to instruct the execution member to perform a corresponding action according to the action instruction to interfere with the access of the other one of the charging base and the charging gun; And a power supply module electrically connected with the control module and the execution module to realize power supply.

2. A charge protection system as claimed in claim 1, wherein, The abnormal charging detection module is a voltage detection assembly connected in parallel with the power terminal assembly, and the output end of the voltage detection assembly is electrically connected with the input end of the control module.

3. A charge protection system as claimed in claim 1, wherein, The execution member is arranged at both ends of the adapter, and the execution member comprises a telescopic member having a telescopic function, the telescopic member being extended to hinder the other one of the charging base and the charging gun from accessing the adapter, and the telescopic member being retracted to allow the other one of the charging base and the charging gun to normally access the adapter.

4. A charge protection system as claimed in claim 3, wherein, At least one clamping member for clamping the charging base / charging gun is arranged on the outer side of the shell and rotates, one end of the clamping member constitutes a clamping end, and the other end constitutes a pressing end, the execution member comprises a first electric telescopic member having a telescopic end, the first electric telescopic member is arranged in the shell and at least partially penetrates the shell after the telescopic end is extended and extends below the pressing end of the clamping member, and the first electric telescopic member is configured to perform an extension action in response to the action instruction sent by the control module.

5. A charge protection system as claimed in claim 4, wherein, The signal terminal assembly comprises a CP signal terminal assembly and a PP signal terminal assembly, a circuit breaker connected with the power supply module for power supply is connected in series on the PP signal terminal assembly, the control end of the circuit breaker is electrically connected to the output end of the control module, the shell is provided with an induction switch electrically connected with the control module for sensing the action position of the execution member, and the control module is configured to acquire and verify the action position of the execution member through the induction switch and send a disconnection instruction to the circuit breaker when the verification result does not conform to the preset action position.

6. A charge protection system as claimed in claim 5, wherein, The lower side of the pressing end of the clamping member is provided with a trigger switch electrically connected with the control module, the pressing end of the clamping member triggers the trigger switch when being pressed down to make the trigger switch send a trigger signal to the control module, and the control module is configured to send a disconnection instruction to the circuit breaker according to the trigger signal.

7. A charge protection system as claimed in claim 1, wherein, The signal terminal assembly comprises a CP signal terminal assembly and a PP signal terminal assembly; The charging protection system further comprises an AC / DC judgment module, which is electrically connected with the power supply module, and the input end of the AC / DC judgment module is electrically connected with the CP signal terminal assembly, and the output end is electrically connected with the input end of the control module; the AC / DC judgment module is configured to send the judgment result to the control module after judging the signal type on the CP signal terminal assembly when the charging gun accesses the charging protection system; the control module is configured to send an action instruction to the execution module when the judgment result of the AC / DC judgment module does not conform to the preset correct signal type; the execution module is configured to instruct the execution member to perform corresponding actions according to the action instruction, so as to interfere with the access of the charging base.

8. A charge protection system as claimed in claim 7, wherein, The control module is configured to prioritize processing the signal fed back by the abnormal electrification detection module and then processing the signal fed back by the AC / DC judgment module when both the abnormal electrification detection module and the AC / DC judgment module feed back signals.

9. A charge protection system as claimed in claim 7, wherein, A circuit breaker connected in series with the PP signal terminal assembly is connected in power supply with the power supply module, the control end of the circuit breaker is electrically connected to the output end of the control module, and the control module is configured to send an opening instruction to the circuit breaker at the same time as sending an action instruction to the execution module, so as to disconnect the connection of the PP signal terminal assembly.

10. A charge protection method, wherein, The abnormal electrification detection process comprises the following steps: S1, access the charging gun / charging base to the adapter; S2, the abnormal electrification detection module detects whether the power terminal assembly is electrified, and outputs the detection result to the control module; S3, the control module acquires the detection result, if the detection result is that the power terminal assembly is not electrified, the charging base / charging gun is allowed to access the adapter for charging, if the detection result is that the power terminal assembly is electrified, the control module sends an action instruction to the execution module, and the execution module instructs the execution member to perform an action of interfering with the access of the charging base / charging gun to the adapter after receiving the action instruction.

11. The charge protection method of claim 10, wherein, In step S2, when the abnormal electrification detection module detects whether the power terminal assembly is electrified, the detected signal is a voltage signal.

12. The charge protection method of claim 10, wherein, Before step S1, there is also a step S0: after the power supply module supplies power, the control module checks the initial action position of the execution member, if the initial action position of the execution member conforms to the preset initial action position, step S1 is performed, if the initial action position of the execution member does not conform to the preset initial action position, the control module sends a blocking instruction to the circuit breaker connecting the PP signal terminal assembly, and the circuit breaker disconnects the connection of the PP signal terminal assembly after receiving the blocking instruction.

13. The charge protection method of claim 10, wherein, When the charging gun accesses the adapter, the charging protection method further comprises an AC / DC judgment process, and the AC / DC judgment process comprises: Step a, the AC / DC judgment module judges the CP signal type and outputs the judgment result to the control module; In step b, the control module obtains a judgment result, if the judgment result conforms to the preset correct signal type, the charging base is allowed to access the adapter, if the judgment result does not conform to the preset correct signal type, the control module sends an action instruction to the execution module, and the execution module drives the execution member to execute the action of interfering with the charging base accessing the adapter.

14. The charge protection method of claim 13, wherein, The abnormal charging detection process is executed prior to the AC / DC judgment process.

15. The charge protection method of claim 13, wherein, In the abnormal charging detection process and the AC / DC judgment process, the control module sends an action instruction to the execution module and also sends an opening instruction to the circuit breaker connected to the PP signal terminal assembly, and the circuit breaker opens the PP signal terminal assembly after receiving the opening instruction.

16. The charge protection method of claim 10, wherein, At least one clamping member for clamping the charging base or the charging gun is arranged on the outer side of the shell of the adapter, one end of the clamping member constitutes a clamping end, and the other end constitutes a pressing end, the execution member includes a first electric telescopic member having a telescopic end, the first electric telescopic member is arranged in the shell and at least partially penetrates the shell after the telescopic end is extended and extends to below the pressing end of the clamping member, and the charging protection method further includes a clamping mistaken release prevention process, the clamping mistaken release prevention process includes that the control module sends an action instruction to the execution module, and the execution module extends the telescopic end of the first electric telescopic member to below the pressing end of the clamping member according to the action instruction to prevent the clamping member from being mistakenly released from the clamping with the charging base or the charging gun.

17. An adapter comprising a housing and a signal terminal assembly, a power terminal assembly, and a circuit board disposed within the housing, wherein, The circuit board is integrated with the charging protection system according to any one of claims 1-9.

18. An adapter as claimed in claim 17, wherein, The signal terminal assembly includes a CP signal terminal assembly and a PP signal terminal assembly, the PP signal terminal assembly is connected with a circuit breaker in series, a control end of the circuit breaker is electrically connected to an output end of the control module, and an input end of the control module is electrically connected with a trigger switch. At least one clamping member for clamping the charging base or the charging gun is arranged on the outer side of the shell of the adapter, one end of the clamping member constitutes a clamping end, and the other end constitutes a pressing end, the execution member includes a first electric telescopic member having a telescopic end, the first electric telescopic member is arranged in the shell and at least partially penetrates the shell after the telescopic end is extended and extends to below the pressing end of the clamping member, and the charging protection method further includes a clamping mistaken release prevention process, the clamping mistaken release prevention process includes that the control module sends an action instruction to the execution module, and the execution module extends the telescopic end of the first electric telescopic member to below the pressing end of the clamping member according to the action instruction to prevent the clamping member from being mistakenly released from the clamping with the charging base or the charging gun.

19. An adapter as claimed in claim 18, wherein, The execution member includes a first electric telescopic member having a telescopic end, the first electric telescopic member is arranged in the shell and at least partially penetrates the shell after the telescopic end is extended and extends to below the pressing end of the clamping member, and the first electric telescopic member is configured to execute an extension action in response to an action instruction sent by the control module.

20. An adapter as defined in claim 18, wherein, The execution member includes a second electric telescopic member having a telescopic end, the second electric telescopic member is arranged in the shell and at least partially penetrates the shell after the telescopic end is extended and extends to inside one end of the shell connected with the charging base or the charging gun to execute interference with the charging base or the charging gun accessing the adapter after the charging gun or the charging base is connected with the adapter.

21. An adaptor as claimed in claim 19 or 20, wherein, The shell is provided with a sensing switch electrically connected to the control module and used for sensing the action position of the execution member, so that the control module obtains and verifies the action position of the execution member.

22. An adapter as defined in claim 17, wherein, The power supply module includes a battery, the shell is provided with a charging interface for charging the battery and a power switch for connecting / disconnecting the power supply of the battery.

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