Charging control system and charging pile

Abstract

The utility model provides a charging control system which comprises a first power supply switch, a second power supply switch, a first output interface used for being connected with an electric vehicle, a second output interface used for being connected with electric equipment, a detection module and a control module. The output end of the first power supply switch is connected with the first output interface, the output end of the second power supply switch is connected with the second output interface, the detection module is used for detecting input and output parameters of the first power supply switch and the second power supply switch, and the control module is used for receiving detection data of the detection module. And on-off states of the first power supply switch and the second power supply switch are controlled so as to control output conditions of the first output interface and the second output interface. The utility model further provides a charging pile, by applying the charging control system, power can be supplied to the electric vehicle and electric equipment of different types from the electric vehicle, the charging function is diversified, and the charging pile can be fully utilized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging, in particular to a charging control system and a charging pile. BACKGROUND

[0002] The charging pile is a device for supplementing the electric energy of an electric vehicle. The charging piles on the market are limited to simultaneously charging one or more electric vehicles, and have a single function and cannot be fully utilized. CONTENT OF THE UTILITY MODEL

[0003] To solve the problems of the prior art, the present application provides a charging control system and a charging pile, which can not only charge an electric vehicle but also charge other electric devices, so that the charging function of the charging pile is diversified and can be fully utilized.

[0004] The first aspect of the present application provides a charging control system applied to a charging pile, wherein the charging pile is connected to an external power supply. The charging control system comprises a first power supply switch, a second power supply switch, a first output interface, a second output interface, a detection module and a control module; the input end of the first power supply switch and the input end of the second power supply switch are connected to the external power supply, the output end of the first power supply switch is connected to the first output interface, and the output end of the second power supply switch is connected to the second output interface; wherein the first output interface is used to connect an electric vehicle, and the second output interface is used to connect an electric device of a type different from the electric vehicle; the input end and the output end of the first power supply switch and the input end of the second power supply switch are respectively connected to the detection module, the detection module, the first power supply switch, the second power supply switch and the first output interface are further respectively connected to the control module, the detection module is used to detect the input and output parameters of the first power supply switch and the second power supply switch and transmit them to the control module, and the control module is used to control the switching state of the first power supply switch and the second power supply switch and / or communicate with the electric vehicle through the first output interface, wherein the first output interface outputs power when the first power supply switch is closed, the second output interface outputs power when the second power supply switch is closed, and the sum of the output powers of the second output interface and the first output interface does not exceed the input power provided by the external power supply.

[0005] In an embodiment, the first output interface has a power terminal and a signal terminal, the first output interface is used to output power to the electric vehicle through the power terminal and output available output current information generated by the control module to the electric vehicle through the signal terminal; wherein the available output current information is used to indicate the available output current value of the first output interface, and the actual output current of the first output interface and the actual charging current of the electric vehicle both do not exceed the available output current value of the first output interface.

[0006] In an embodiment, the detection module comprises a metering chip, a first current detection circuit, a second current detection circuit, a first voltage detection circuit and a second voltage detection circuit, wherein the first current detection circuit is provided with a first current sensing element and connected to the input end of the first power switch through the first current sensing element; the second current detection circuit is provided with a second current sensing element and connected to the input end of the second power switch through the second current sensing element; the first voltage detection circuit is connected to the input end of the first power switch and the second power switch, and the second voltage detection circuit is connected to the output end of the first power switch. The first current detection circuit, the second current detection circuit, the first voltage detection circuit and the second voltage detection circuit are respectively connected to the metering chip, and the metering chip is used to detect the actual output current of the first output interface through the first current detection circuit, detect the actual output current of the second output interface through the second current detection circuit, and detect the actual input voltage of the first power switch and the second power switch through the first voltage detection circuit, and detect the actual output voltage of the first power switch through the second voltage detection circuit.

[0007] In an embodiment, the charging control system further comprises a protection module connected between the input end of the first power switch and the second power switch and the external power supply, and the protection module is further connected to the control module. The control module is used to detect the abnormality of the charging control system through the protection module, and control the first power switch and the second power switch to be both turned off when the charging control system has an abnormality. The abnormality includes at least one of the ground wire not being connected to the neutral wire, the leakage current of the charging control system exceeding a preset current threshold, the charging control system being overvoltage, undervoltage, overcurrent and overtemperature.

[0008] In an embodiment, the protection module comprises at least one of a ground protection detection circuit and a leakage protection detection circuit. The ground protection detection circuit comprises a first voltage dividing circuit, a second voltage dividing circuit, an operational amplifier circuit, and a first output filtering circuit, a first input of the operational amplifier circuit is connected to a live wire of an external power supply through the first voltage dividing circuit, a second input of the operational amplifier circuit is connected to the live wire and a ground of the external power supply through the second voltage dividing circuit, an output of the operational amplifier circuit is connected to the control module through the first output filtering circuit, and the operational amplifier circuit is configured to amplify a voltage difference between the first input and the second input to generate a ground detection signal to the control module; wherein the ground detection signal less than a preset voltage threshold is used to indicate that a neutral wire of the external power supply is connected to a ground, and the ground detection signal greater than or equal to the preset voltage threshold is used to indicate that the neutral wire of the external power supply is not connected to the ground. The leakage protection detection circuit comprises a closed-loop current sensor and a second output filtering circuit, the closed-loop current sensor is sleeved on the live wire of the external power supply and coupled with the live wire of the external power supply, a ground of the closed-loop current sensor is connected to the ground, an output of the closed-loop current sensor is connected to the control module, and the closed-loop current sensor is configured to detect a leakage current of the live wire and the ground of the external power supply and generate a corresponding leakage current detection signal to the control module; wherein the leakage current detection signal is used to indicate a size of the leakage current of the live wire and the ground of the external power supply.

[0009] In an embodiment, the charging control system further comprises a communication module connected to the control module, and the control module is configured to communicate with at least one of the electric vehicle and the electronic terminal device through the communication module, receive a control instruction from the at least one of the electric vehicle and the electronic terminal device, and / or transmit charging information of the first output interface and the second output interface to the at least one of the electric vehicle and the electronic terminal device.

[0010] The second aspect of the present application provides a charging pile comprising the charging control system of the first aspect or any one of the embodiments of the first aspect, and the charging pile is configured to supply power to at least one of the electric vehicle and the electric device through the charging control system.

[0011] In an embodiment, the first output interface is a charging gun plug, and the second output interface is a socket adapted to the electric device, and the electric device comprises the electronic terminal device.

[0012] In an embodiment, the charging pile further comprises a housing, and the first power supply switch, the second power supply switch, the communication module, the detection module, and the control module are accommodated in the housing, and the first output interface and the second output interface are exposed on an outer surface of the housing.

[0013] In an embodiment, the charging pile further comprises a display module exposed on the outer surface of the shell and connected to the control module, and the control module is configured to output the charging information of at least one of the first output interface and the second output interface to the display module for visual display.

[0014] Compared with the prior art, the present application has at least the following technical effects or advantages:

[0015] The charging control system of the present application can realize charging of electric vehicles and other electric devices by designing different first output interfaces and second output interfaces, and the first power supply switch, the second power supply switch, the detection module and the control module that are adapted thereto. The charging pile of the present application has diversified charging functions by applying the charging control system of the present application, has high flexibility in use, and can be fully utilized.

[0016] In addition, the charging control system of the present application can adjust the output power by controlling the switching state of the first power supply switch and the second power supply switch, and by communicating with the electric vehicle through the first output interface, thereby avoiding the problem of output overload caused by excessive total output power of the first output interface and the second output interface, and a protection module can be designed for safety detection. Therefore, the charging control system and the charging pile of the present application have high safety in use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a connection diagram of the charging pile, the electric vehicle and the electric device provided by the embodiment of the present application.

[0018] Figure 2 is a schematic diagram of the charging pile provided by the embodiment of the present application.

[0019] Figure 3 is a structural schematic diagram of the charging control system provided by the embodiment of the present application.

[0020] Figure 4 is Figure 3 is a circuit diagram of the test module in

[0021] Figure 5 is Figure 3 is a circuit diagram of the ground protection detection circuit in

[0022] Figure 6 is Figure 3 is a circuit diagram of the leakage detection circuit in

[0023] MAIN ELEMENT SYMBOL EXPLANATION

[0024] 100 - charging pile, 10 - shell, 20 - charging control system, 21 - first output interface, 211 - first power supply terminal,

[0025] 212 - signal terminal, 22 - second output interface, 221 - second power terminal, 23 - first power supply switch, 24 - second power supply switch,

[0026] 25 - detection module, 251 - metering chip, 252 - first current detection circuit, 2521 - first current sensing element,

[0027] 253 - second current detection circuit, 2531 - second current sensing element, 254 - first voltage detection circuit,

[0028] 255 - second voltage detection circuit, 26 - communication module, 27 - control module, 28 - protection module, 281 - ground protection detection circuit,

[0029] 2811 - first voltage dividing circuit, 2812 - second voltage dividing circuit, 2813 - operational amplifier circuit, 2814 - first output filter circuit,

[0030] 282 - leakage protection detection circuit, 2821 - closed-loop current sensor, 2822 - second output filter circuit, 30 - cable,

[0031] 40 - display module, 41 - display screen, 42 - first indicator light, 43 - second indicator light, 200 - electric vehicle, 300 - electric device. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0033] Therefore, the detailed description of the embodiments of the present application provided below in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0034] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] Some embodiments of the present application will be described in detail below with reference to the drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] Please refer to Figure 1 , a schematic diagram of a charging pile 100 provided by an embodiment of the present application and an electric vehicle 200 and an electric device 300 connected to the charging pile 100 is shown. As Figure 1 shown, the charging pile 100 includes a shell 10 and a charging control system 20 installed on the shell 10. The charging pile 100 can supply power to the electric vehicle 200 and the electric device 300 simultaneously through the charging control system 20, or supply power to the electric vehicle 200 or the electric device 300 individually through the charging control system 20.

[0037] The electric vehicle 200 can be an electric vehicle such as an electric car or an electric motorcycle. The electric device 300 is a device of a different type from the electric vehicle 200. The electric device 300 includes an electronic terminal device such as a computer, a game console, an electric appliance, an electric self-balancing scooter, or a consumer electronic product, or a lighting device, or a smart city device, and the like.

[0038] Please refer to Figure 2 , the charging control system 20 can obtain power from an external power source such as a power grid through a cable 30. The charging control system 20 includes a first output interface 21 and a second output interface 22, both of which are exposed on the outer surface of the shell 10. The first output interface 21 is adapted to the electric vehicle 200, and the first output interface 21 can be used to electrically connect to the electric vehicle 200 to supply power to the electric vehicle 200. The second output interface 22 is adapted to the electric device 300, and the second output interface 22 can be used to electrically connect to the electric device 300 to supply power to the electric device 300.

[0039] The first output interface 21 is a charging gun plug that conforms to a corresponding electric vehicle charging interface standard (such as the GB / T 20234 standard, the J1772 standard, the NACS standard, the CCS standard, or the CHAdeMO standard, etc.), which can be selected accordingly according to actual conditions. The first output interface 21 can be inserted into a socket of the adapted electric vehicle 200 to form an electrical connection with the electric vehicle 200.

[0040] The second output interface 22 is a socket that conforms to a corresponding electric device interface standard (such as the GB / T 1003-2016 standard, the NEMA standard, the NMX-J-163-ANCE standard, the CSA C22.2 No. 42 standard, or the JIS C 8303 standard, etc.), which can be selected accordingly according to actual conditions. The second output interface 22 can be inserted into a plug of the adapted electric device 300 or a power adapter plug of the electric device 300 to form an electrical connection with the electric device 300.

[0041] It can be understood that the first output interface 21 comprises a power terminal 211 (for the sake of distinction, it can be referred to as a first power terminal) and a signal terminal 212, the charging control system 20 can output power to the electric vehicle 200 through the first power terminal 211 of the first output interface 21, and can communicate with the electric vehicle 200 through the signal terminal 212 of the first output interface 21.

[0042] For example, the first power terminal 211 of the first output interface 21 can comprise a live terminal, a neutral terminal and a ground terminal, the live terminal is used for connecting a live wire L of an external power supply, the neutral terminal is used for connecting a neutral wire N of the external power supply, and the ground terminal is used for connecting a ground wire (i.e. protecting earthing, PE) of the external power supply. Normally, the neutral wire N and the ground wire PE of the external power supply are connected.

[0043] The signal terminal 212 of the first output interface 21 can comprise a charging connection confirmation (i.e. connection confirm, CC) terminal and a control pilot (i.e. control pilot, CP) terminal. The charging control system 20 and the electric vehicle 200 can confirm the connection state of the first output interface 21 and the electric vehicle 200 according to the electrical signal of the CC terminal. The charging control system 20 and the electric vehicle 200 can monitor the charging process according to the electrical signal of the CP terminal. In this process, the charging control system 20 can generate a PWM signal and transmit it through the CP terminal, the PWM signal serves as available output current information, and the duty cycle of the PWM signal indicates the available output current value of the first output interface 21. The available output current value of the first output interface 21 is the maximum output current value supported by the first output interface 21, which can be equal to or less than the rated output current value of the first output interface 21. Further, the vehicle control unit inside the electric vehicle 200 can detect the PWM signal of the CP terminal, and determine the charging current of the electric vehicle 200 according to the available output current value of the first output interface 21 and the state of the electric vehicle 200. The on-board charger (OBC) inside the electric vehicle 200 controls the actual charging current of the electric vehicle 200 according to the charging current determined by the vehicle control unit. The actual charging current of the electric vehicle 200 is derived from the actual output current of the first output interface 21, therefore, the actual output current of the first output interface 21 and the actual charging current of the electric vehicle 200 change synchronously.

[0044] For another example, the second output interface 22 can comprise a power terminal 221 (for the sake of distinction, it can be referred to as a second power terminal). The second power terminal 221 of the second output interface 22 can be described with reference to the related description of the first output interface 21, which will not be repeated here.

[0045] Further, please refer to Figure 3 The charging control system 20 further comprises a first power supply switch 23, a second power supply switch 24, a detection module 25, a communication module 26 and a control module 27. The first power supply switch 23, the second power supply switch 24, the detection module 25, the communication module 26 and the control module 27 are all accommodated in the casing 10.

[0046] The input end of the first power supply switch 23 and the input end of the second power supply switch 24 are both connected to the live wire L of the external power supply, the output end of the first power supply switch 23 is connected to the first output interface 21, and the output end of the second power supply switch 24 is connected to the second output interface 22.

[0047] When the first power supply switch 23 is turned on, the power of the external power supply can be transmitted to the first output interface 21 through the first power supply switch 23 and output by the first output interface 21; when the second power supply switch 24 is turned on, the power of the external power supply can be transmitted to the second output interface 22 through the second power supply switch 24 and output by the second output interface 22. Conversely, when the first power supply switch 23 is turned off, the first output interface 21 has no output power. When the second power supply switch 24 is turned off, the second output interface 22 has no output power.

[0048] It should be understood that the first power supply switch 23 and the second power supply switch 24 can both select a corresponding electronic control switch according to actual conditions. For example, the first power supply switch 23 and the second power supply switch 24 can adopt a relay, which can withstand large current and large voltage, and is conducive to the safe and stable transmission of power.

[0049] The input end and the output end of the first power supply switch 23 and the input end of the second power supply switch 24 are respectively connected to the detection module 25, and the detection module 25 can be used to detect the input and output parameters of the first power supply switch 23 and the second power supply switch 24.

[0050] In the embodiments of the present application, the detection module 25 can be applied to a single live wire system L1-N, or to a double live wire system L1-L2, and has an independent reference ground MGND. When applied to a single live wire system, the input end of the first power supply switch 23 and the input end of the second power supply switch 24 are connected to the live wire L1, and the detection module 25 takes the neutral wire N as the reference ground MGND. When applied to a double live wire system, the input end of the first power supply switch 23 and the input end of the second power supply switch 24 are connected to the live wire L1, and the detection module 25 takes the live wire L2 as the reference ground MGND.

[0051] Specifically, the detection module 25 can be used for voltage and current detection. Correspondingly, the input and output parameters may include, for example, the actual input voltage, actual input current, actual output voltage, and actual output current. For instance, in this embodiment, the detection module 25 can detect the actual input voltage, actual input current, actual output voltage, and actual output current of the first power supply switch 23, and detect the actual input current of the second power supply switch 24. Since the input terminals of both the first power supply switch 23 and the second power supply switch 24 are connected to an external power source, the actual input voltage of the first power supply switch 23 is also the actual input voltage of the second power supply switch 24.

[0052] As a further example, in one embodiment, such as Figure 4 As shown, the detection module 25 may include a metering chip 251 (referred to as U1), a first current detection circuit 252, a second current detection circuit 253, a first voltage detection circuit 254, and a second voltage detection circuit 255. The first current detection circuit 252, the second current detection circuit 253, the first voltage detection circuit 254, and the second voltage detection circuit 255 are respectively connected to the metering chip 251.

[0053] The metering chip 251 can be any dedicated metering chip ASSP, such as the STPM3x series chips, etc. It can be understood that the metering chip 251 has corresponding peripheral circuits and components, such as power supply Vcc1, crystal oscillator Z, and filter capacitors Cf1~Cf8. For the sake of brevity, these will not be elaborated upon here.

[0054] Both the first current detection circuit 252 and the second current detection circuit 253 can be selected from general-purpose current detection circuits. For example, such as... Figure 4 As shown, the first current detection circuit 252 includes a first current sensing element 2521 and a first RL network. The metering chip 251 is connected to the first current sensing element 2521 through the first RL network, and the first current sensing element 2521 is connected to the input terminal of the first power supply switch 23. The second current detection circuit 253 includes a second current sensing element 2531 and a second RL network. The metering chip 251 is connected to the second current sensing element 2531 through the second RL network, and the second current sensing element 2531 is connected to the input terminal of the second power supply switch 24.

[0055] The first current sensing element 2521 and the second current sensing element 2531 can be any type of current sensor. For example, such as... Figure 3 and Figure 4As shown, the first current sensing element 2521 and the second current sensing element 2531 can both be a current transformer (CT). The first current sensing element 2521 is installed on and coupled to the input end of the first power supply switch 23. The second current sensing element 2531 is installed on and coupled to the input end of the second power supply switch 24. The first RL network can be formed by the resistors Rf1, Rf2 and the inductors Lf1, Lf2 in series and parallel, and the second RL network can be formed by the resistors Rf3, Rf4 and the inductors Lf3, Lf4 in series and parallel. The first RL network and the second RL network are both connected to the reference ground MGND.

[0056] Thus, when the current provided by the external power supply is input to the first power supply switch 23, the input current of the first power supply switch 23 can be coupled to the first current sensing element 2521, and the metering chip 251 can then measure the input current of the first power supply switch 23 through the first current detection circuit 252. Similarly, when the current provided by the external power supply is input to the second power supply switch 24, the input current of the second power supply switch 24 can be coupled to the second current sensing element 2531, and the metering chip 251 can then measure the input current of the second power supply switch 24 through the second current detection circuit 253. The first RL network and the second RL network can both function to filter and improve the accuracy of current detection.

[0057] The first voltage detection circuit 254 is connected to the input end of the first power supply switch 23 and the second power supply switch 24, which is represented as L_IN in the embodiment of the present application for convenience. The second voltage detection circuit 255 is connected to the output end of the first power supply switch 23, which is represented as L_OUT in the embodiment of the present application for convenience. The metering chip 251 can detect the actual input voltage of the first power supply switch 23 and the second power supply switch 24 through the first voltage detection circuit 254, and detect the actual output voltage of the first power supply switch 23 through the second voltage detection circuit 255.

[0058] The first voltage detection circuit 254 and the second voltage detection circuit 255 can both be a general voltage detection circuit. For example, as shown in FIG. 4, the first voltage detection circuit 254 and the second voltage detection circuit 255 can both be a voltage detection circuit 400. Figure 4As shown, the first voltage detection circuit 254 includes an inductor Lf5, a resistor Rf5, a resistor Rf6 and a capacitor Cf9. The metering chip 251 is connected to one end of the inductor Lf5. The other end of the inductor Lf5, one end of the resistor Rf5 and one end of the resistor Rf6 are connected in series. The other end of the resistor Rf6 is connected to the reference ground MGND. The capacitor Cf9 is connected in parallel with the resistor Rf6. The second voltage detection circuit 255 includes an inductor Lf6, a resistor Rf7, a resistor Rf8 and a capacitor Cf10. The metering chip 251 is connected to one end of the inductor Lf6. The other end of the inductor Lf6, one end of the resistor Rf7 and one end of the resistor Rf8 are connected in series. The other end of the resistor Rf8 is connected to the reference ground MGND. The capacitor Cf10 is connected in parallel with the resistor Rf8.

[0059] In this way, the inductor Lf5, the resistor Rf5 and the resistor Rf6 together constitute a first voltage dividing network, which can divide the actual input voltage of the first power supply switch 23. The metering chip 251 can thus obtain the actual input voltage of the first power supply switch 23 according to the voltage division of the first voltage detection circuit 254. The inductor Lf6, the resistor Rf7 and the resistor Rf8 together constitute a second voltage dividing network, which can divide the actual output voltage of the first power supply switch 23. The metering chip 251 can thus obtain the actual output voltage of the first power supply switch 23 according to the voltage division of the second voltage detection circuit 255. The capacitors Cf9 and Cf10 serve as filter capacitors, which can filter and isolate and improve the voltage detection accuracy.

[0060] The control module 27 can be a microcontroller unit (MCU) or other general-purpose controller or control circuit. The communication module 26 can be, for example, a wireless communication module 26, which includes but is not limited to a Wi-Fi module, a star flash module, a mobile communication (such as 4G / 5G) module, an LTE-V communication (LTE-Vehicle-to-Everything) module, a DSRC communication (Dedicated Short-Range Communication) module, a C-V2X (Cellular Vehicle-to-Everything) module, a Bluetooth module, a ZigBee module, etc.

[0061] The communication module 26, the first power supply switch 23, the second power supply switch 24, the first output interface 21 and the metering chip 251 of the detection module 25 are also connected to the control module 27. The metering chip 251 can be connected to the control module 27 through an electrical isolation device (not shown in the figure). As shown, Figure 4 The communication mode between the metering chip 251 and the control module 27 can be, for example, an SPI communication mode (corresponding to Figure 4UART communication mode (corresponding to Figure 4 SCL, SCS pins of the metering chip 251).

[0062] Based on such design, the control module 27 can communicate with the vehicle control unit inside the electric vehicle 200 through the communication module 26, and can also communicate with the electronic terminal device of the user through the communication module 26. The user can input control instructions in the electronic terminal device and / or in the operation panel of the electric vehicle 200, and the control instructions can be transmitted to the control module 27 through the communication module 26. The control instructions can be used to indicate whether the first output interface 21 and the second output interface 22 of the charging control system 20 output power, the output parameters (such as current, voltage, power size) and output duration required to be provided by the first output interface 21, and the output parameters (such as current, voltage, power size) and output duration required to be provided by the second output interface 22.

[0063] After receiving the control instructions, the control module 27 can be used to control the switching state of the first power supply switch 23 and the second power supply switch 24 according to the control instructions.

[0064] For example, after the electric vehicle 200 is connected to the first output interface 21, if it is needed to charge the electric vehicle 200, the user can input control instructions for indicating the first output interface 21 to output power, and the control module 27 can then control the first power supply switch 23 to be turned on according to the control instructions, so that the first output interface 21 can output power to charge the electric vehicle 200. If it is needed to pause charging the electric vehicle 200, the user can input control instructions for indicating the first output interface 21 to stop outputting power, and the control module 27 can then control the first power supply switch 23 to be turned off according to the control instructions, so that the first output interface 21 has no power output and cannot charge the electric vehicle 200. If the duration of the power output of the first output interface 21 reaches the duration indicated by the control instructions, the control module 27 can automatically control the first power supply switch 23 to be turned off.

[0065] Similarly, after the electrical device 300 is connected to the second output interface 22, if the electrical device 300 needs to be charged, the user can input a control instruction for instructing the second output interface 22 to output power, and the control module 27 controls the second power supply switch 24 to be turned on according to the control instruction, so that the second output interface 22 can output power to charge the electrical device 300. If the user wants to pause the charging of the electrical device 300, the user can input a control instruction for instructing the second output interface 22 to stop outputting power, and the control module 27 controls the second power supply switch 24 to be turned off according to the control instruction, so that the second output interface 22 has no power output and cannot charge the electrical device 300. If the duration of the power output of the second output interface 22 reaches the duration indicated by the control instruction, the control module 27 can also automatically control the second power supply switch 24 to be turned off.

[0066] During the charging process, the control module 27 can also be used to receive the detection data measured by the detection module 25 in real time, calculate the power transmitted by the first power supply switch 23 according to the actual input voltage and the actual input current of the first power supply switch 23 measured by the detection module 25, and calculate the power transmitted by the second power supply switch 24 according to the actual input voltage and the actual input current of the second power supply switch 24 measured by the detection module 25. The sum of the power transmitted by the first power supply switch 23 and the power transmitted by the second power supply switch 24 is equal to the input power provided by the external power supply to the charging control system 20.

[0067] Generally, the actual output power of the first output interface 21 is equal to or approximately equal to the power transmitted by the first power supply switch 23, and the actual output power of the first output interface 21 will not exceed the available output power of the first output interface 21. The actual output power of the second output interface 22 is equal to or approximately equal to the power transmitted by the second power supply switch 24, and the actual output power of the second output interface 22 will not exceed the available output power of the second output interface 22. However, since the electric vehicle 200 can regulate the charging current, the actual output current of the first output interface 21 changes, for example, increases to exceed the originally set available output current value of the first output interface 21, and the output voltage of the first output interface 21 remains unchanged, so that the output power of the first output interface 21 increases, and the sum of the output power of the first output interface 21 and the output power of the second output interface 22 exceeds the input power, resulting in output overload of the charging control system 20, which may cause abnormal heating of the charging control system 20, and even safety problems such as damage and shortened service life.

[0068] Therefore, to ensure charging safety, the control module 27 can also be configured to calculate the available output current value of the first output interface 21 according to the detection data, and control the switching states of the first power supply switch 23 and the second power supply switch 24 accordingly, and / or perform corresponding communication with the electric vehicle 200 through the first output interface 21, so that the electric vehicle 200 adjusts the current of the first output interface 21. In this way, the sum of the output powers of the second output interface 22 and the first output interface 21 does not exceed the input power provided by the external power supply, thereby avoiding the safety risk of the charging control system 20 due to output overload.

[0069] For example, in the case where the first output interface 21 is connected to the electric vehicle 200 and the second output interface 22 is connected to the electrical equipment 300, if the sum of the output powers of the second output interface 22 and the first output interface 21 exceeds the input power provided by the external power supply, and both the electric vehicle 200 and the electrical equipment 300 need to be charged immediately, the control module 27 can control the first power supply switch 23 and the second power supply switch 24 to be both turned on, so that the first power supply switch 23, the first output interface 21 and the electric vehicle 200 form a power supply path, and the first output interface 21 can output power to the electric vehicle 200; the second power supply switch 24, the second output interface 22 and the electrical equipment 300 form another power supply path, and the second output interface 22 can output power to the electrical equipment 300. In this case, the control module 27 can also output the latest available output current information generated by the control module 27 to the electric vehicle 200 through the signal terminal 212 of the first output interface 21, and the available output current information is used to indicate the latest available output current value of the first output interface 21, so that the electric vehicle 200 can adjust the actual charging current of the electric vehicle 200 according to the latest available output current value, for example, to reduce the actual charging current of the electric vehicle 200, thereby reducing the actual output current of the first output interface 21, so that the actual charging current of the electric vehicle 200 and the actual output current of the first output interface 21 both do not exceed the available output current value, and the actual charging speed of the electric vehicle 200 is slowed down. In this way, the sum of the output power of the first output interface 21 and the output power of the second output interface 22 can be prevented from exceeding the input power.

[0070] For another example, in the case where the first output interface 21 is connected to the electric vehicle 200 and the second output interface 22 is connected to the electrical equipment 300, if the sum of the output powers of the second output interface 22 and the first output interface 21 exceeds the input power provided by the external power supply, and the electric vehicle 200 needs a larger charging current to charge quickly, the control module 27 can control the first power supply switch 23 to be turned on and the second power supply switch 24 to be turned off, so as to prioritize the charging of the electric vehicle 200. In this case, the control module 27 can also communicate with the electric vehicle 200 through the signal terminal 212 of the first output interface 21 to adjust the actual charging current of the electric vehicle 200, so as to adjust the actual charging speed of the electric vehicle 200.

[0071] For example, in the case that the first output interface 21 is connected to the electric vehicle 200 and the second output interface 22 is connected to the electrical equipment 300, if the sum of the output power of the second output interface 22 and the first output interface 21 exceeds the input power provided by the external power supply, and the electrical equipment 300 needs a short charging time, the control module 27 can control the second power supply switch 24 to be turned on and the first power supply switch 23 to be turned off, so as to preferentially charge the electrical equipment 300.

[0072] In addition, the control module 27 can also transmit the charging information of the first output interface 21 and the second output interface 22 to the electric vehicle 200 and / or the electronic terminal device through the communication module 26. The charging information may, for example, include the output power size that the first output interface 21 and the second output interface 22 can provide, the actual output power size and the duration of the first output interface 21 and the second output interface 22 during the charging process, billing information, and the like.

[0073] In some embodiments, in order to improve the operation safety and the charging safety, please refer to Figure 3 The charging control system 20 can further include a protection module 28. The protection module 28 is connected between the input ends of the first power supply switch 23 and the second power supply switch 24 and the external power supply. The protection module 28 is also connected to the control module 27. The control module 27 can be used to detect the abnormality of the charging control system 20 through the protection module 28, and control the first power supply switch 23 and the second power supply switch 24 to be both turned off when the charging control system 20 has an abnormality, so as to protect the charging control system 20 and the electric vehicle 200 and the electrical equipment 300 connected thereto.

[0074] The abnormality may, for example, include at least one of the ground wire not being connected to the neutral wire, the leakage current of the charging control system 20 exceeding a preset current threshold, the overvoltage, the undervoltage, the overcurrent, and the overtemperature of the charging control system 20.

[0075] For example, as shown in Figure 3 In an embodiment, the protection module 28 includes a ground protection detection circuit 281 and a leakage protection detection circuit 282. The ground protection detection circuit 281 is used to detect whether the ground wire is connected to the neutral wire, and the leakage protection detection circuit 282 is used to detect whether the leakage current of the charging control system 20 exceeds a preset current threshold. The ground GND of the ground protection detection circuit 281 and the leakage protection detection circuit 282 is different from the MGND, and the GND is connected to the ground wire.

[0076] For example, as shown in Figure 5As shown, the ground protection detection circuit 281 comprises a first voltage dividing circuit 2811, a second voltage dividing circuit 2812, an operational amplifier circuit 2813 and a first output filter circuit 2814. The first input terminal of the operational amplifier circuit 2813 is connected to the live wire L through the first voltage dividing circuit 2811, the second input terminal of the operational amplifier circuit 2813 is connected to the live wire L and the ground through the second voltage dividing circuit 2812, and the output terminal of the operational amplifier circuit 2813 is connected to the control module 27 through the first output filter circuit 2814.

[0077] For example, the operational amplifier circuit 2813 mainly comprises an operational amplifier chip U2, a first input resistor R1, a second input resistor R2, a feedback resistor R3, a feedback capacitor C1, a first voltage stabilizing circuit and a second voltage stabilizing circuit. The operational amplifier chip U2 can be selected according to actual conditions, for example, an NCS21911 series operational amplifier can be used. It should be understood that the operational amplifier chip U2 has corresponding peripheral circuits such as a power supply Vdd, a filter capacitor Cf11 and the like. For the sake of brevity of description, they will not be described here. The first output filter circuit 2814 comprises filter resistors Rf13 and Rf14 and a filter capacitor Cf12.

[0078] The first voltage dividing circuit is connected between the live wire L and the first input resistor R1, and can divide the voltage provided by the live wire L into an input voltage Vin1 of the first input resistor R1. The first voltage dividing circuit 2811 is composed of a plurality of voltage dividing resistors, for example, a plurality of voltage dividing resistors Rd1-Rd5 are connected in series. The second voltage dividing circuit is connected between the live wire L and the second input resistor R2, and can divide the voltage provided by the live wire L into an input voltage Vin2 of the second input resistor R2. The second voltage dividing circuit 2812 is composed of a plurality of voltage dividing resistors and a plurality of diodes, for example, diodes D1 and D2 and voltage dividing resistors Rd6-Rd14 are connected in series, and the connection point of voltage dividing resistors Rd11 and Rd12 is also connected to the ground. The first input resistor R1 is also connected to the inverting input terminal IN- of the operational amplifier chip U2. The second input resistor R2 is also connected to the non-inverting input terminal IN+ of the operational amplifier chip U2 and the ground. The feedback resistor R3 is connected between the inverting input terminal IN- and the output terminal of the operational amplifier chip U2, and the feedback capacitor C1 is connected in parallel with the feedback resistor R3. The output terminal of the operational amplifier chip U2 is also connected to the control module 27 through the filter resistor Rf13, and the filter resistor Rf13 is also connected to the ground through the parallel connection of the filter resistor Rf14 and the filter capacitor Cf12. It should be understood that the model parameters of each resistor, capacitor and diode element can be selected according to actual conditions, and are not limited here.

[0079] Thus, the operational amplifier circuit 2813 constitutes a differential operational amplifier circuit 2813. The operational amplifier circuit 2813 can amplify the voltage difference Vin1-Vin2 between the first and second input terminals to generate a ground detection signal PE_TEST_DETECT. The ground detection signal PE_TEST_DETECT is transmitted to the control module 27 through the first output filter circuit 2814. The amplification process helps improve detection accuracy. The first output filter circuit 2814 can filter the ground detection signal PE_TEST_DETECT to improve detection precision.

[0080] When the neutral wire of the external power supply is connected to a ground wire, meaning the charging control system 20 is properly grounded, the ground detection signal is less than a preset voltage threshold. In other words, a ground detection signal less than the preset voltage threshold indicates that the neutral wire of the external power supply is connected to a ground wire. When the neutral wire of the external power supply is not connected to a ground wire, meaning the charging control system 20 is abnormally grounded, the ground detection signal is greater than or equal to the preset voltage threshold. In other words, a ground detection signal greater than or equal to the preset voltage threshold indicates that the neutral wire of the external power supply is not connected to a ground wire.

[0081] When the ground wire is not connected to the neutral wire, the charging control system 20 is at risk of electric shock and malfunction. Therefore, in this case, the control module 27 can respond to the ground detection signal that is greater than or equal to the preset voltage threshold and control both the first power supply switch 23 and the second power supply switch 24 to disconnect.

[0082] like Figure 6 As shown, the leakage current protection detection circuit 282 includes a closed-loop current sensor 2821 (corresponding to...) Figure 6 The closed-loop current sensor 2821 features high accuracy, high response speed, and anti-interference capability. For example, the T60404 series closed-loop current sensor 2821 can be used, or other closed-loop current sensors 2821 can be selected according to the actual situation. It should be understood that the closed-loop current sensor 2821 has corresponding peripheral circuits and components, such as a power supply Vcc2, which will not be elaborated here for the sake of brevity. The second output filter circuit 2822 includes filter resistors Rf16~Rf19 and filter capacitors Cf14~Cf17.

[0083] It can be understood that the closed-loop current sensor 2821 has a magnetic core and a current sensing element, such as a Hall element, and therefore, the closed-loop current sensor 2821 can be sleeved on the live wire L and coupled with the live wire L to sense the current. The GND ground terminal of the closed-loop current sensor 2821 is grounded. The test terminal (i.e., the TST_IN pin of U3) of the closed-loop current sensor 2821 is also connected to the control module 27, wherein the TST_IN pin can be grounded through the filtering capacitor Cf13 and connected to the control module 27 through the filtering resistor Rf15. The ERROR_OUT output terminal, the X6 / 30_OUT output terminal, the X20_OUT output terminal, and the PWM_OUT output terminal of the closed-loop current sensor 2821 are connected to the control module 27. Among them, the ERROR_OUT output terminal is connected to Vcc2 and ground through the filtering resistor Rf16 and the filtering capacitor Cf14 in series, the X6 / 30_OUT output terminal is connected to Vcc2 and ground through the filtering resistor Rf17 and the filtering capacitor Cf15 in series, the X20_OUT output terminal is connected to Vcc2 and ground through the filtering resistor Rf18 and the filtering capacitor Cf16 in series, and the PWM_OUT output terminal is grounded through the filtering resistor Rf19 and the filtering capacitor Cf17 in series.

[0084] In this way, the control module 27 can control the closed-loop current sensor 2821 to perform a self-checking at a timing, and when the self-checking of the closed-loop current sensor 2821 fails, it indicates that the closed-loop current sensor 2821 has an abnormality, and therefore, the ERROR_OUT output terminal outputs a prompt signal to the control module 27, and the prompt signal is used to indicate that the closed-loop current sensor 2821 has an abnormality. In order to ensure the safety of charging, the control module 27 at this time can respond to the prompt signal to control the first power supply switch 23 and the second power supply switch 24 to be both disconnected.

[0085] When the self-checking of the closed-loop current sensor 2821 succeeds, it indicates that the closed-loop current sensor 2821 is normal, and therefore, the closed-loop current sensor 2821 can be used to detect the leakage current of the live wire and the ground wire and generate a corresponding leakage current detection signal, and the leakage current detection signal is transmitted to the control module 27 through the second output filtering circuit 2822.

[0086] The corresponding leakage current detection signal outputted by the PWM OUT output end is used to indicate the specific size of the leakage current of the live wire L and the ground wire PE. The X6 / 30 OUT output end and the X20 OUT output end correspond to different current thresholds respectively. When the leakage current exceeds the current threshold corresponding to the X6 / 30 OUT output end, the X6 / 30 OUT output end outputs the corresponding leakage current detection signal to the control module 27, and the X6 / 30 OUT output end outputs the corresponding leakage current detection signal to indicate that the leakage current of the live wire L and the ground wire PE exceeds the current threshold corresponding to the X6 / 30 OUT output end. When the leakage current exceeds the current threshold corresponding to the X20 OUT output end, the X20 OUT output end outputs the corresponding leakage current detection signal to the control module 27, and the X20 OUT output end outputs the corresponding leakage current detection signal to indicate that the leakage current of the live wire L and the ground wire PE exceeds the current threshold corresponding to the X20 OUT output end.

[0087] In the case that the leakage current exceeds the safety threshold value specified by the corresponding standard regulation (for example, IEC or UL standard, etc.), the charging control system 20 has the risk of electric shock and failure. Therefore, when the leakage current exceeds the preset safety threshold value, the control module 27 can control the first power supply switch 23 and the second power supply switch 24 to be both disconnected.

[0088] For example, the protection module 28 can be provided with a general overvoltage protection detection circuit to detect whether the input voltage and the output voltage of the first power supply switch 23 exceed the preset overvoltage threshold value, can be provided with a general undervoltage protection detection circuit to detect whether the input voltage and the output voltage of the first power supply switch 23 are lower than the preset undervoltage threshold value, and can be provided with a general overcurrent protection detection circuit to detect whether the actual input current and the actual output current of the first power supply switch 23 exceed the preset overcurrent threshold value.

[0089] When the input voltage of the first power supply switch 23 exceeds the overvoltage threshold value, or the output voltage of the first power supply switch 23 exceeds the overvoltage threshold value, the overvoltage protection detection circuit generates the corresponding overvoltage detection signal to the control module 27, and the control module 27 in turn controls the first power supply switch 23 to be disconnected, thereby realizing overvoltage protection.

[0090] When the input voltage of the first power supply switch 23 is lower than the preset undervoltage threshold value, or the output voltage of the first power supply switch 23 is lower than the preset undervoltage threshold value, the undervoltage protection detection circuit generates the corresponding undervoltage detection signal to the control module 27, and the control module 27 in turn controls the first power supply switch 23 to be disconnected, thereby realizing undervoltage protection.

[0091] When the actual input current of the first power supply switch 23 or the second power supply switch 24 is lower than the preset overcurrent threshold, or the actual output current of the first power supply switch 23 or the second power supply switch 24 is lower than the preset overcurrent threshold, the overcurrent protection detection circuit generates a corresponding overcurrent detection signal to the control module 27, and the control module 27 in turn controls the first power supply switch 23 to be disconnected, thereby realizing overcurrent protection.

[0092] The overvoltage, undervoltage and overcurrent detection of the second power supply switch 24 is the same, and thus is not described here again.

[0093] For another example, the protection module 28 can detect whether the temperature of the elements of the charging control system 20 or the temperature around the elements exceeds the preset overtemperature threshold by using a general temperature sensor. When the detected temperature of the temperature sensor exceeds the preset overtemperature threshold, the overtemperature protection detection circuit generates a corresponding overtemperature detection signal to the control module 27, and the control module 27 in turn controls the first power supply switch 23 to be disconnected, thereby realizing overtemperature protection.

[0094] Please refer to Figure 2 and Figure 3 The charging pile 100 of the embodiment of the present application can further include a display module 40. The display module 40 can be any kind of element or circuit module that can realize visual display, for example, the display module 40 of the embodiment of the present application includes a display screen 41, a first indicator light 42 and a second indicator light 43, and the display screen 41, the first indicator light 42 and the second indicator light 43 are exposed on the outer surface of the shell 10. The display screen 41, the first indicator light 42 and the second indicator light 43 are further connected to the control module 27 respectively. The control module 27 is used to output the charging information of the first output interface 21 to the display screen 41 and the first indicator light 42, and the control module 27 is used to output the charging information of the second output interface 22 to the display screen 41 and the second indicator light 43. The display screen 41, the first indicator light 42 and the second indicator light 43 can visually display or prompt the corresponding charging information.

[0095] For example, when the first output interface 21 is connected to the electric vehicle 200 and charges the electric vehicle 200, the display screen 41 can display a corresponding display page, and the first indicator light 42 can be in a state of being lit or flashing. When the first output interface 21 is not connected to the electric vehicle 200, the display screen 41 can display a corresponding display page, and the first indicator light 42 can be in an extinguished state. Similarly, when the second output interface 22 is connected to the electric device 300 and charges the electric device 300, the display screen 41 can display a corresponding display page, and the second indicator light 43 can be in a state of being lit or flashing. When the second output interface 22 is not connected to the electric device 300, the display screen 41 can display a corresponding display page, and the second indicator light 43 can be in an extinguished state.

[0096] It can be understood that the embodiment of the application can also add the first output interface 21 to charge two, three or more electric vehicles 200, and the embodiment of the application can also add the second output interface 22 to supply power to two, three or more electric devices 300. Each first output interface 21 corresponds to a first power supply switch 23 respectively, and is respectively used to connect a corresponding electric vehicle 200 and supply power to the connected electric vehicle 200. Each second output interface 22 corresponds to a second power supply switch 24 respectively, and is respectively used to connect a corresponding electric device 300 and supply power to the connected electric device 300. It should be understood that the total output power of all second output interfaces 22 and all first output interfaces 21 does not exceed the input power provided by the external power supply.

[0097] The above embodiment is described as a preferred embodiment of the application, and does not limit the scope of the application. Without departing from the design spirit of the application, various modifications and improvements of the technical solutions of the application made by those skilled in the art shall fall within the protection scope determined by the claims of the application.

Claims

1. A charging control system applied to a charging pile, wherein the charging pile is connected to an external power source, characterized in that, The charging control system includes: a first power supply switch, a second power supply switch, a first output interface, a second output interface, a detection module, and a control module; The input terminals of the first power supply switch and the second power supply switch are both connected to the external power source. The output terminal of the first power supply switch is connected to the first output interface, and the output terminal of the second power supply switch is connected to the second output interface. The first output interface is used to connect to an electric vehicle, and the second output interface is used to connect electrical equipment of a different type than the electric vehicle. The input and output terminals of the first power supply switch and the input terminal of the second power supply switch are respectively connected to the detection module. The detection module, the first power supply switch, the second power supply switch and the first output interface are also respectively connected to the control module. The detection module is used to detect the input and output parameters of the first power supply switch and the second power supply switch and transmit them to the control module, control the switching state of the first power supply switch and the second power supply switch, and / or communicate with the electric vehicle through the first output interface. Wherein, the first output interface outputs power when the first power supply switch is closed, the second output interface outputs power when the second power supply switch is closed, and the total output power of the second output interface and the first output interface does not exceed the input power provided by the external power supply.

2. The charging control system as described in claim 1, characterized in that, The first output interface has a power terminal and a signal terminal. The first output interface is used to output power to the electric vehicle through the power terminal and to output the available output current information generated by the control module to the electric vehicle through the signal terminal. The available output current information is used to indicate the available output current value of the first output interface, and the actual output current of the first output interface and the actual charging current of the electric vehicle do not exceed the available output current value of the first output interface.

3. The charging control system as described in claim 1, characterized in that, The detection module includes a metering chip, a first current detection circuit, a second current detection circuit, a first voltage detection circuit, and a second voltage detection circuit, wherein... The first current detection circuit is provided with a first current sensing element and is connected to the input terminal of the first power supply switch through the first current sensing element; the second current detection circuit is provided with a second current sensing element and is connected to the input terminal of the second power supply switch through the second current sensing element. The first voltage detection circuit is connected to the input terminals of the first power supply switch and the second power supply switch, and the second voltage detection circuit is connected to the output terminal of the first power supply switch; The first current detection circuit, the second current detection circuit, the first voltage detection circuit, and the second voltage detection circuit are respectively connected to the metering chip. The metering chip is used to detect the actual output current of the first output interface through the first current detection circuit, detect the actual output current of the second output interface through the first current detection circuit, and detect the actual input voltage of the first power supply switch and the second power supply switch through the first voltage detection circuit, and detect the actual output voltage of the first power supply switch through the second voltage detection circuit.

4. The charging control system as described in claim 1, characterized in that, The charging control system further includes a protection module, which is connected between the input terminals of the first power supply switch and the second power supply switch and the external power source. The protection module is also connected to the control module, which is used to detect abnormalities in the charging control system through the protection module and to control both the first power supply switch and the second power supply switch to disconnect when there is an abnormality in the charging control system. The anomalies include: the ground wire not being connected to the neutral wire; the leakage current of the charging control system exceeding a preset current threshold; and at least one of the following: overvoltage, undervoltage, overcurrent, and overtemperature of the charging control system.

5. The charging control system as described in claim 4, characterized in that, The protection module includes at least one of a grounding protection detection circuit and a leakage current protection detection circuit; The grounding protection detection circuit includes a first voltage divider circuit, a second voltage divider circuit, an operational amplifier circuit, and a first output filter circuit. The first input terminal of the operational amplifier circuit is connected to the live wire of the external power supply through the first voltage divider circuit. The second input terminal of the operational amplifier circuit is connected to the live wire and ground of the external power supply through the second voltage divider circuit. The output terminal of the operational amplifier circuit is connected to the control module through the first output filter circuit. The operational amplifier circuit is used to amplify the voltage difference between the first input terminal and the second input terminal to generate a grounding detection signal for the control module. Wherein, the grounding detection signal less than the preset voltage threshold is used to indicate that the neutral line of the external power supply is connected to a ground wire, and the grounding detection signal greater than or equal to the preset voltage threshold is used to indicate that the neutral line of the external power supply is not connected to a ground wire; The leakage current protection detection circuit includes a closed-loop current sensor and a second output filter circuit. The closed-loop current sensor is sleeved outside the live wire of the external power supply and coupled to the live wire of the external power supply. The ground terminal of the closed-loop current sensor is grounded. The output terminal of the closed-loop current sensor is connected to the control module. The closed-loop current sensor is used to detect the leakage current of the live wire and ground wire of the external power supply and generate a corresponding leakage current detection signal to the control module. The leakage current detection signal is used to indicate the magnitude of the leakage current in the live wire and ground wire of the external power supply.

6. The charging control system as described in claim 1, characterized in that, The charging control system further includes a communication module connected to the control module. The control module is used to communicate with at least one of the electric vehicle and the electronic terminal device through the communication module to receive control commands from at least one of the electric vehicle and the electronic terminal device, and / or transmit charging information of the first output interface and the second output interface to at least one of the electric vehicle and the electronic terminal device.

7. A charging pile, characterized in that, The charging pile includes a charging control system as described in any one of claims 1 to 6, wherein the charging control system is used to supply power to at least one of the electric vehicle and the electrical equipment.

8. The charging pile as described in claim 7, characterized in that, The first output interface is a charging gun plug; the second output interface is a socket adapted to the electrical device, which includes electronic terminal equipment.

9. The charging pile as described in claim 7, characterized in that, The charging pile also includes a housing and a communication module. The first power supply switch, the second power supply switch, the communication module, the detection module, and the control module are housed in the housing, and the first output interface and the second output interface are both exposed on the outer surface of the housing.

10. The charging pile as described in claim 9, characterized in that, The charging pile also includes a display module, which is exposed on the outer surface of the housing and connected to the control module. The control module is used to output charging information of at least one of the first output interface and the second output interface to the display module for visual display.

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