Power control device

Abstract

The utility model discloses a power control device, which comprises a detection module, a control module, an electric leakage protection module and / or a display module, wherein the detection module at least detects the current and the voltage of a first power supply branch, the first power supply branch comprises a power supply branch used for supplying power to other electronic equipment except the charging pile in a family, and relevant information of the detected current and the detected voltage is used as first information to be sent to the control module, and the control module uses the first information to control the charging pile. Adjusting the charging power of the charging pile; the electric leakage protection module detects whether an electric leakage event occurs in the power supply circuit, and disconnects the power supply circuit when detecting that the power supply circuit leaks electricity; the power supply circuit comprises a first power supply branch and / or a second power supply branch for supplying power to the charging pile; the display module receives the second information and / or the third information sent by the control module, and presents the first electricity consumption and / or the total electricity consumption associated with the second power supply branch; the control module is used for determining the first electricity consumption and / or the total electricity consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to power control technology in the field of electronic technology, and in particular to a power control device. BACKGROUND

[0002] With the popularity of electric vehicles, home charging piles have become an increasingly important part of household electricity demand. However, as a high-power electrical appliance, the use of charging piles poses new challenges to household electricity systems. During peak usage periods, when charging piles are used together with other household electrical equipment, overcurrent tripping may occur due to excessive current, affecting the stability of household electricity and the continuity of charging.

[0003] At the same time, when installing a charging pile in a home environment, the complexity and cost of installation also need to be considered. Currently, there is no effective solution to the above problems. CONTENT OF THE INVENTION

[0004] To solve the problems in the related art, the embodiments of the present application provide a power control device.

[0005] The technical scheme of the embodiments of the present application is implemented as follows:

[0006] The embodiments of the present application provide a power control device, which comprises a detection module and a control module, wherein,

[0007] The detection module is configured to detect at least the current and voltage of a first power supply branch in a home environment and send first information to the control module, the first power supply branch including a power supply branch for supplying power to other electronic devices in the home except for the charging pile, and the first information including relevant information of the detected current and voltage;

[0008] The control module is configured to adjust the charging power of the charging pile using the first information.

[0009] The device further comprises one or more of the following modules:

[0010] The leakage protection module is configured to detect whether a leakage event has occurred in the power supply circuit, and to disconnect the power supply circuit when detecting that a leakage event has occurred in the power supply circuit, the power supply circuit including the first power supply branch and / or a second power supply branch for supplying power to the charging pile.

[0011] The display module is configured to receive the second information sent by the control module, and present the first power consumption associated with the second power supply branch, the second information being used to represent the first power consumption, and / or receive the third information sent by the control module, and present the total power consumption associated with the first power supply branch and the second power supply branch, the third information being used to represent the total power consumption; the control module is further configured to determine the power consumption associated with the second power supply branch, and send the second information to the display module, and / or determine the total power consumption associated with the first power supply branch and the second power supply branch, and send the third information to the display module.

[0012] In some embodiments, the leakage protection module comprises a leakage detection submodule and a circuit breaking submodule, wherein,

[0013] The leakage detection submodule is configured to detect whether a leakage event occurs in the power supply circuit, and send fourth information to the control module when detecting that a leakage event occurs in the power supply circuit, the fourth information being used to represent that a leakage event occurs in the power supply circuit.

[0014] The control module is further configured to receive the fourth information sent by the leakage detection submodule, and control the circuit breaking submodule to disconnect the power supply circuit.

[0015] In some embodiments, the circuit breaking submodule is further configured to disconnect the power supply circuit when an overload or short circuit event occurs in the power supply circuit.

[0016] In some embodiments, the detection module comprises a current detection submodule and a voltage detection submodule; wherein,

[0017] The current detection submodule is configured to detect the current of the first power supply branch, and send first related information of the detected current value to the control module.

[0018] The voltage detection submodule is configured to detect the voltage of the first power supply branch in the home environment, and send second related information of the detected voltage value to the control module.

[0019] The control module is configured to receive the first related information and the second related information sent by the current detection submodule, and adjust the charging power of the charging pile according to the first related information and the second related information.

[0020] Or,

[0021] The detection module comprises a current detection submodule, a voltage detection submodule and a chip; wherein,

[0022] The current detection submodule is configured to detect the current of the first power supply branch in the home environment, and send third related information of the detected current value to the chip;

[0023] The voltage detection submodule is configured to detect the voltage of the first power supply branch in the home environment, and send fourth related information of the detected voltage value to the chip;

[0024] The chip is configured to receive the third related information sent by the current detection submodule and the fourth related information sent by the voltage detection submodule, and send the current value of the first power supply branch and the voltage value of the first power supply branch to the control module;

[0025] The control module is configured to receive the current value of the first power supply branch and the voltage value of the first power supply branch sent by the chip, and adjust the charging power of the charging pile according to the current value of the first power supply branch and the voltage value of the first power supply branch.

[0026] In some embodiments, the device further comprises a communication module; wherein,

[0027] The control module is further configured to receive fifth information sent by the terminal through the communication module, the fifth information being used to represent the power consumption habit of the family member, and adjust the charging power of the charging pile by using the first information and the fifth information.

[0028] In some embodiments, the control module is further configured to send the second information and / or the third information to the terminal through the communication module, so as to present the first power consumption and / or the total power consumption on the terminal.

[0029] In some embodiments, the communication module is configured to provide a wireless communication mode.

[0030] In some embodiments, the device further comprises:

[0031] The reset module is configured to receive a reset instruction, and send the reset instruction to the control module;

[0032] The control module is configured to receive the reset instruction sent by the reset module, perform system reset in response to the reset instruction, and control the leakage protection module to perform self-checking.

[0033] In some embodiments, the control module is configured to:

[0034] determine the power consumption of the first power supply branch according to the current and voltage of the first power supply branch, determine the power consumption of the second power supply branch according to the available power of the power supply circuit and the power consumption of the first power supply branch, and

[0035] generate power adjustment instructions according to the power consumption of the second power supply branch, and send the power adjustment instructions to the charging pile;

[0036] The charging pile is configured to adjust the charging power of the charging pile in response to the power adjustment instructions.

[0037] In some embodiments, the control module and the charging pile communicate based on a power line carrier (PLC) or RS485 protocol.

[0038] The power control device provided by the embodiments of the present application comprises a detection module and a control module. The detection module is configured to detect at least the current and voltage of a first power supply branch in a home environment and send first information to the control module. The first power supply branch comprises a power supply branch for supplying power to electronic devices other than the charging pile in the home. The first information comprises relevant information of the detected current and voltage. The control module is configured to adjust the charging power of the charging pile by using the first information. The device further comprises one or more of the following modules: a leakage protection module configured to detect whether a leakage event occurs in the power supply circuit, and disconnect the power supply circuit when it is detected that the leakage event occurs in the power supply circuit. The power supply circuit comprises the first power supply branch and / or a second power supply branch for supplying power to the charging pile. A display module is configured to receive second information sent by the control module, and present a first power consumption associated with the second power supply branch. The second information is used to represent the first power consumption. The display module is also configured to receive third information sent by the control module, and present a total power consumption associated with the first power supply branch and the second power supply branch. The third information is used to represent the total power consumption. The control module is further configured to determine the power consumption associated with the second power supply branch, and send the second information to the display module. The control module is also configured to determine the total power consumption associated with the first power supply branch and the second power supply branch, and send the third information to the display module. The power control device provided by the embodiments of the present application adjusts the charging power of the household charging pile according to the power consumption of other electronic devices in the home, thereby ensuring the stability of the charging of the charging pile and the power consumption of other devices in the home. At the same time, the device can be used as an electric meter and a leakage protection switch, thereby saving the cost of related devices and reducing the installation complexity. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 A structural schematic diagram of a power control device provided by the embodiments of the present application;

[0040] Figure 2 A structural schematic diagram of a leakage protection module provided by the embodiments of the present application;

[0041] Figure 3A circuit structure schematic diagram of an electric leakage detection module provided by an embodiment of the present application is provided.

[0042] Figure 4 A structure schematic diagram of a detection module provided by an embodiment of the present application is provided.

[0043] Figure 5 A circuit structure schematic diagram of a current detection submodule provided by an embodiment of the present application is provided.

[0044] Figure 6 A circuit structure schematic diagram of a voltage detection submodule provided by an embodiment of the present application is provided.

[0045] Figure 7 Another structure schematic diagram of a detection module provided by an embodiment of the present application is provided.

[0046] Figure 8 A circuit structure schematic diagram of a detection module provided by an embodiment of the present application is provided.

[0047] Figure 9 A structure schematic diagram of a power control device provided by an application example of the present application is provided. DETAILED DESCRIPTION

[0048] 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.

[0049] It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0050] With the popularity of electric vehicles, home charging piles have become the power demand of more and more families. However, as a high-power electrical appliance, the use of charging piles poses new challenges to the household power system. During the peak period of user electricity consumption, when the charging pile is used together with other household electrical equipment, it may cause overcurrent tripping due to excessive current, affecting the stability of household electricity consumption and the continuity of charging. And in the installation process of the charging pile, if there is no electric leakage protection function inside the charging pile, a circuit breaker with electric leakage detection function needs to be installed; for charging piles using independent new energy meters, additional meters need to be installed, and the installation of these devices alone makes the equipment cost higher and the installation more complex.

[0051] Based on this, in various embodiments of the present application, a power control device integrating various modules is provided, which can adjust the charging power of the household charging pile according to the power consumption of other electronic devices in the family, ensuring the stability of charging pile charging and power consumption of other devices in the family; at the same time, the device can also be used as an electricity meter and a leakage protection switch, saving the cost of related equipment and reducing the installation complexity. Here, other electronic devices refer to any electronic devices in the family except the charging pile, such as refrigerators, televisions, mobile phones, computers, etc., and the embodiments of the present application do not limit this.

[0052] The embodiments of the present application provide a power control device, as shown in the figure, which includes a detection module 101 and a control module 102; wherein, Figure 1

[0053] The detection module 101 is used to detect at least the current and voltage of the first power supply branch in the family environment, and send the first information to the control module 102, wherein the first power supply branch includes a power supply branch for supplying power to other electronic devices in the family except the charging pile, and the first information includes relevant information of the detected current and voltage;

[0054] The control module 102 is used to adjust the charging power of the charging pile by using the first information;

[0055] The power control device can also include one or more of the following modules (one or more modules can also be understood as at least one module):

[0056] The leakage protection module 103 is used to detect whether a leakage event occurs in the power supply circuit; when detecting that a leakage event occurs in the power supply circuit, the power supply circuit is disconnected, wherein the power supply circuit includes the first power supply branch and / or a second power supply branch for supplying power to the charging pile;

[0057] The display module 104 is used to receive the second information sent by the control module 102, and present the first power consumption associated with the second power supply branch, wherein the second information is used to represent the first power consumption, and / or receive the third information sent by the control module 102, and present the total power consumption associated with the first power supply branch and the second power supply branch, wherein the third information is used to represent the total power consumption; the control module 102 is also used to determine the power consumption associated with the second power supply branch, and send the second information to the display module 104, and / or also used to determine the total power consumption associated with the first power supply branch and the second power supply branch, and send the third information to the display module 104.

[0058] ​When the detection module 101 detects each branch of the power supply circuit at the same time, the first information includes the relevant information of the current and voltage of the first power supply branch detected and the relevant information of the current and voltage of the second power supply branch detected, and the control module 102 determines the power consumption associated with the second power supply branch and / or the total power consumption associated with the first power supply branch and the second power supply branch by using the first information.

[0059] Here, in actual application, the control module 102 can specifically include a micro controller unit (MCU), a system on chip (SoC), a digital signal processor (DSP), a field-programmable gate array (FPGA), etc.

[0060] Exemplarily, the control module 102 can obtain the voltage of the first power supply branch based on the voltage-related information of the first power supply branch sent by the detection module 101, obtain the input voltage of the power supply circuit according to the voltage of the first power supply branch (the input voltage of the power supply circuit is the voltage of the first power supply branch), obtain the available power of the home power supply circuit according to the input voltage of the power supply circuit and the maximum current allowed to pass through the home power supply circuit under normal working conditions, and obtain the power consumption of the first power supply branch based on the voltage and current of the first power supply branch sent by the detection module 101. The control module 102 obtains the power consumption of the second power supply branch for supplying power to the charging pile according to the available power of the power supply circuit and the power consumption of the first power supply branch at this time, generates a power adjustment instruction according to the power consumption of the second power supply branch, and sends the power adjustment instruction to the charging pile. The charging pile adjusts the charging power of the charging pile in response to the power adjustment instruction. Here, assuming that the maximum current allowed to pass through the power supply circuit under normal working conditions is 40A, the input voltage of the power supply circuit is 220V, and the power consumption of the first power supply branch is 3kW, the control module 102 determines that the available power of the home power supply circuit is 40x220=8.8kW, and accordingly the power consumption of the second power supply branch can be 8.8-3=5.8kW. Here, in actual application, the control module 102 can receive the seventh information sent by the terminal, and the seventh information is used to represent the maximum current allowed to pass through the power supply circuit under normal working conditions, so as to obtain the maximum current allowed to pass through the power supply circuit under normal working conditions. The specific implementation process of the control module 102 obtaining the maximum current allowed to pass through the power supply circuit under normal working conditions is not limited in the embodiments of the application.

[0061] It can be understood that, in actual application, in household electricity, the input voltage of the power supply circuit is usually the same as the voltage of each branch, and therefore the detection module 101 can only detect the voltage of the first power supply branch. Of course, in actual application, the voltage detection module 101 can also detect the input voltage of the power supply circuit and the voltage of each power supply branch, respectively.

[0062] In actual application, the detection module 101 can also be used to detect the current and voltage of the second power supply branch, and send the detected information about the current and voltage of the second power supply branch to the control module 102, so that the control module 102 uses the information, for example, can determine the first power consumption and the total power consumption according to the received information about the current and voltage of the second power supply branch. Of course, the control module 102 can also communicate with the charging pile to obtain the information about the current and voltage of the second power supply branch from the charging pile, and determine the first power consumption and the total power consumption according to the obtained information about the current and voltage of the second power supply branch.

[0063] In some embodiments, as shown in Figure 2 The leakage protection module 103 can include a leakage detection submodule 1031 and a circuit breaking submodule 1032. The leakage detection submodule 1031 is configured to detect whether a leakage event occurs in the power supply circuit, and send fourth information to the control module 102 when it is detected that a leakage event occurs in the power supply circuit, wherein the fourth information is used to represent that a leakage event occurs in the power supply circuit. After the control module 102 receives the fourth information sent by the leakage detection submodule 1031, the control module 102 controls the circuit breaking submodule 1032 to disconnect the power supply circuit to prevent electric shock accidents.

[0064] Here, in actual application, the leakage detection submodule 1031 can detect whether a leakage event occurs in the first power supply branch to ensure the safety of the first power supply branch; in this case, the leakage detection submodule 1031 can be connected to the first power supply branch to detect whether a leakage event occurs in the first power supply branch, and send sixth information to the control module 102 when a leakage event occurs in the first power supply branch, wherein the sixth information can be used to represent that a leakage event occurs in the first power supply branch; after the control module 102 receives the sixth information sent by the leakage detection submodule 1031, the control module 102 controls the circuit breaking submodule 1032 to disconnect the first power supply branch.

[0065] Of course, the leakage detection submodule 1031 can also detect whether a leakage event occurs in the second power supply branch to ensure the safety of the use of the second power supply branch; in this case, the leakage detection submodule 1031 can access the second power supply branch to detect whether a leakage event occurs in the first power supply branch, and send the eighth information to the control module 102 when a leakage event occurs in the second power supply branch, the eighth information can be used to represent that a leakage event occurs in the second power supply branch. It can be understood that the leakage detection submodule 1031 can also detect leakage events in the first power supply branch and the second power supply branch to ensure the safety of the use of the entire power supply circuit, and the specific processing process will not be repeated.

[0066] In some embodiments, as shown in Figure 3 The leakage detection submodule 1031 can include a leakage current sensor U1, resistors R1 and R2; the ports of the leakage current sensor U1 include ports VCC, VO, GND and CHK; wherein the port VO is connected to the resistor R1, and the port CHK is connected to the resistor R2, for receiving a self-checking instruction and enabling the leakage current sensor U1 to self-check; the port VCC is connected to a power supply, and the GND port is grounded; the self-checking refers to the function of the leakage current sensor U1 to periodically and automatically check whether it can work normally.

[0067] The working principle of the leakage detection submodule 1031 includes:

[0068] The leakage current sensor U1 includes a magnetic ring and an inductive coil, and the live wire and the neutral wire of the power supply circuit pass through the magnetic ring. When the current passes through the magnetic ring, a magnetic field is generated, which induces a voltage signal in the inductive coil. If there is a leakage in the circuit, the abnormal change of the current will cause the change of the magnetic field, and then a voltage signal indicating the leakage is generated in the inductive coil, prompting the leakage sensor U1 to occur leakage. At this time, the leakage sensor U1 sends a signal indicating the leakage to the control module 102 through the port VO; the port CHK is used to receive a self-checking instruction to enable the leakage sensor U1 to self-check.

[0069] In actual application, when using a household charging pile, the circuit needs to be protected in the case of short circuit or overload in the power supply circuit, so a circuit breaker needs to be additionally installed.

[0070] Based on this, in some embodiments, the circuit breaking submodule 1032 is further configured to automatically disconnect the power supply circuit when an overload or short circuit event occurs in the power supply circuit. In actual applications, the circuit breaking submodule 1032 can include a thermal response overload protector and an electromagnetic short circuit protector commonly available on the market. When the current in the power supply circuit exceeds the rated current, the thermal response overload protector can be induced and the power supply circuit is disconnected. When a short circuit occurs in the circuit, the current increases sharply, and the electromagnetic short circuit protector can be quickly induced and the power supply circuit is disconnected. The device provided in the embodiments of the present application can realize the protection of short circuit or overload, without the need to additionally install a circuit breaker, thereby reducing the cost and the complexity of installation.

[0071] Here, in actual applications, the circuit breaking submodule 1032 can also be controlled by the control module 102 to disconnect the power supply circuit. For example, the control module 102 determines whether an overload or short circuit event occurs in the power supply circuit according to the current of the power supply circuit detected by the detection module 101, and controls the circuit breaking submodule 1032 to disconnect the power supply circuit if an overload or short circuit event occurs in the power supply circuit.

[0072] Specifically, the control module 102 can determine whether the power supply circuit is overloaded according to the maximum current allowed to pass through the power supply circuit under normal working conditions and the current of the power supply circuit detected by the detection module 101, and controls the circuit breaking submodule 1032 to disconnect the power supply circuit if the power supply circuit is overloaded.

[0073] For example, a user sets the maximum current allowed to pass through the household power supply circuit under normal working conditions by using an application program (APP) on a terminal (such as a mobile phone, a tablet computer or a computer) and sends the maximum current to the control module 102. The control module 102 determines whether the current of the power supply circuit detected by the detection module 101 exceeds the maximum current allowed to pass through the household power supply circuit under normal working conditions, and controls the circuit breaking submodule 1032 to disconnect the power supply circuit if the current of the power supply circuit detected by the detection module 101 exceeds the maximum current allowed to pass through the household power supply circuit under normal working conditions. Here, it is assumed that the maximum current allowed to pass through the household power supply circuit under normal working conditions is 40 A, and the current of the power supply circuit (including the first power supply branch and / or the second power supply branch) detected by the detection module 101 exceeds 40 A. The control module 102 determines that the power supply circuit is overloaded and controls the circuit breaking submodule 1032 to disconnect the power supply circuit. Here, in actual applications, the overload detection can be performed on the first power supply branch or on all power supply branches, which is not limited in the embodiments of the present application.

[0074] In actual applications, the current and the voltage can be collected by different modules.

[0075] Based on this, in some embodiments, as Figure 4As shown, the detection module 101 may include: a current detection submodule 1011 and a voltage detection submodule 1012; wherein,

[0076] The current detection submodule 1011 is used to detect the current of the first power supply branch in the home environment and send the detected current value to the control module 102;

[0077] The voltage detection submodule 1012 is used to detect the voltage of the first power supply branch in the home environment and send the detected voltage value to the control module 102;

[0078] The control module 102 is used to receive the current value of the first power supply branch sent by the current detection submodule 1011 and the voltage value of the first power supply branch sent by the voltage detection submodule 1012, and determine the power consumption of the first power supply branch based on the current value and the voltage value of the first power supply branch.

[0079] Understandably, in practical applications, the input voltage of the power supply circuit and the voltage of each branch are usually the same in household electricity use. Therefore, the voltage detection submodule 1012 can detect only the voltage of the first power supply branch in the household environment. Of course, in practical applications, the voltage detection submodule 1012 can also detect the input voltage of the power supply circuit and the voltage of each branch separately.

[0080] In some embodiments, such as Figure 5 As shown, the current detection submodule 1011 may include: a current transformer U2, resistors R2, R3, R4, R5, R6, and R7, operational amplifiers U3 and U4, and capacitor C1; wherein,

[0081] Ports L_IN and L_IN2 are connected to the two ends of current transformer U2. The secondary coil of current transformer U2 is connected in series with resistor R3. One end of resistor R3 is grounded, and the other end is connected to the positive input terminal 3 of operational amplifier U3 through resistor R4. Output terminal 1 of operational amplifier U3 is connected to resistor R5. Output terminal 1 of operational amplifier U3 is also connected to the negative input terminal 2 of U3. Port 4 of operational amplifier U3 is connected to the negative voltage power supply, and port 8 is connected to the power supply. The other end of resistor R5 is connected to the positive input terminal 5 and resistor R6 of operational amplifier U4, respectively. The other end of resistor R6 is connected to the power supply. Output terminal 7 of operational amplifier U4 is connected to resistor R7. Output terminal 7 of operational amplifier U4 is also connected to the negative input terminal 6 of U4. The other end of resistor R7 is connected to capacitor C1 and also to port V_MCU1. The other end of capacitor C1 is grounded.

[0082] In practical applications, the resistance values ​​of each resistor and the capacitance values ​​of the capacitor can be set as needed, and this application does not limit this.

[0083] The working principle of the current detection submodule 1011 includes:

[0084] The current between the ports L_IN and L_IN2 is mutually inducted to the secondary coil by the current transformer U2, and then the current signal is converted into a sinusoidal voltage signal by the resistor R3, and then the sinusoidal voltage signal is lifted in voltage by the resistor R6 connected to the power supply, so that the sinusoidal voltage signal is always positive voltage, and then the sinusoidal voltage signal is sequentially transmitted to the port V_MCU1 after being filtered by the capacitor C1 and passing through the operational amplifier U4 and the resistor R7, the control module 102 calculates the effective value of the voltage signal based on the voltage signal of the port V_MCU1, and the control module 102 calculates the current value of the secondary coil of the U2 according to the effective value of the voltage signal and the total impedance on the secondary coil side of the current transformer U2, and obtains the actual detected current value according to the turns ratio of the U2, thereby realizing the function of current detection. Herein, the specific processing process of the control module 102 for calculating the actual detected current value is not limited in the embodiments of the application.

[0085] In some embodiments, as shown in Figure 6 The voltage detection submodule 1012 can include a voltage transformer L1, resistors R8, R9, R10, R11, R12, R13, R14, R15, operational amplifiers U5, U6, and a capacitor C2, wherein,

[0086] L_IN and N_IN are input terminals, representing the firewire and the zero line in the power supply line respectively; the L_IN port is sequentially connected with the resistors R8, R9 and R10, the voltage transformer L1, and the N_IN port; the secondary coil of the voltage transformer L1 is connected in series with the resistor R11, one end of the resistor R11 is grounded, the other end is connected with the positive input end 11 of the operational amplifier U5 through the resistor R12, the output end 9 of the operational amplifier U5 is connected with the resistor R13, the output end of the operational amplifier U5 is also connected with the negative input end 10 of the U5, the port 12 of the operational amplifier U5 is connected with the negative voltage power supply, the port 16 is connected with the power supply, the other end of the resistor R13 is connected with the positive input end 13 of the operational amplifier U6 and the resistor R14 respectively, the other end of the resistor R14 is connected with the power supply, the output end of the operational amplifier U6 is connected with the resistor R15, the output end of the operational amplifier U6 is also connected with the negative input end 14 of the U6, the other end of the resistor R15 is connected with the capacitor C2 and the V_MCU2 port, and the other end of the capacitor C2 is grounded.

[0087] In actual application, the resistance values of the resistors and the capacitance values of the capacitors can be set according to needs, which are not limited in the embodiments of the application.

[0088] The working principle of the voltage detection submodule 1012 includes:

[0089] The voltage signal between the ports L_IN and N_IN is converted into a current signal and reduced current through resistors R8, R9 and R10, and the current signal is transformed to a secondary coil through a voltage transformer L1, and then the current signal is converted into a sinusoidal voltage signal through a resistor R11, and then the sinusoidal voltage signal is lifted in voltage through a resistor R12, an operational amplifier U5, a resistor R13, and a resistor R14 connected to a power supply, so that the sinusoidal voltage signal is always a positive voltage, and then the sinusoidal voltage signal is sequentially transmitted to the V_MCU2 port through an operational amplifier U6, R15, and a capacitor C2 for filtering. The control module 102 calculates the effective value of the voltage signal based on the voltage signal of the V_MCU2 port, and obtains the current value of the secondary coil of the voltage transformer L1 according to the effective value of the voltage signal and the total impedance on the secondary coil side of the voltage transformer L1. Then, the current value flowing through the resistors R8, R9 and R10 is obtained according to the number of turns of L1, and the actual detected voltage value is calculated according to the resistance of the resistors R8, R9 and R10, so as to realize the function of voltage detection. The specific processing process of the control module 102 for calculating the actual detected voltage value is not limited in the embodiments of the application.

[0090] In actual application, if it is also required to have the function of detecting the current and voltage of the second power supply branch, the same current detection sub-module and voltage detection sub-module as the first power supply branch can be arranged for the second power supply branch.

[0091] As can be seen from the above description, the first information includes information related to the detected current value and information related to the voltage value, and the control module 102 determines the voltage of the first power supply branch in the home environment and the current of the first power supply branch in the home environment according to the first information, and then determines the power consumption of the first power supply branch according to the voltage and current of the first power supply branch. The control module 102 obtains the power consumption of the second power supply branch according to the available power of the power supply circuit and the power consumption of the first power supply branch.

[0092] Here, in actual application, the detection module 101 can also directly send the current value and the voltage value to the control module 102. In this case, the first information can include the current value of each power supply branch in the home environment and the voltage value of each power supply branch in the home environment.

[0093] Based on this, in some embodiments, as shown in Figure 7 The detection module 101 can include:

[0094] The current detection sub-module 1013, the voltage detection sub-module 1014 and the chip 1015; wherein,

[0095] The current detection sub-module 1013 is configured to detect the current of the first power supply branch in the home environment, and send the detected information related to the current value to the chip 1015;

[0096] The voltage detection submodule 1014 is configured to detect the voltage of the first power supply branch in the home environment, and send information related to the detected voltage value to the chip 1015;

[0097] The chip 1015 is configured to receive the information related to the current value of the first power supply branch sent by the current detection submodule and the information related to the voltage value of the first power supply branch sent by the voltage detection submodule 1014, and send the current value and the voltage value of the first power supply branch to the control module;

[0098] Correspondingly, the control module 102 is configured to receive the current value and the voltage value of the first power supply branch sent by the chip, and adjust the charging power of the charging pile according to the current value and the voltage value of the first power supply branch.

[0099] Specifically, as shown in the figure, Figure 8 The current detection module 1013 can include a current transformer U8 and a resistor R21.

[0100] The L_IN and L_IN2 ports are connected to the two ends of the current transformer U8, the resistor R21 is connected in series with the secondary coil of the current transformer U8, and the two ends of the resistor R21 are connected to the IP and IN ports of the chip 1015, respectively.

[0101] The current between the L_IN and L_IN2 ports is mutually induced to the secondary coil through the current transformer U8, and then the current signal is converted into a sinusoidal voltage signal through the resistor R21, and the sinusoidal voltage signal is transmitted to the IP and IN ports of the chip 1015.

[0102] The voltage detection module 1014 includes a voltage transformer L2, resistors R16, R17, R18, and R19.

[0103] The L_IN port is connected to the resistors R18, R17, and R16 in sequence, the voltage transformer L2, and the N_IN port; the secondary coil of the voltage transformer L2 is connected in series with the R19, one end of the R19 is grounded, and the other end is connected to the VP port of the chip 1015 through the resistor R20.

[0104] The voltage signal between the L_IN and N_IN ports is converted into a current signal and reduced through the resistors R18, R17, and R16, the current signal is mutually induced to the secondary coil through the voltage transformer L2, and then the current signal is converted into a sinusoidal voltage signal through the resistor R19, and then the sinusoidal voltage signal is transmitted to the VP port of the chip 1015 through the resistor R20.

[0105] The chip 1015, which can also be referred to as an electric energy metering chip, has ports including: VDD, IP, IN, VP, SEL, CF1, CF, and GND.

[0106] The port VDD is connected to a power supply; the ports IP and IN are used to receive sinusoidal voltage signals transmitted by the current detection module 1013; the port VP is used to receive sinusoidal voltage signals transmitted by the voltage detection module 1014; the specific processing mode of the actual detected current value or voltage value according to the sinusoidal voltage signals sent by the current detection module 1013 or the voltage detection module 1014 can refer to the processing process of the control module 102, which will not be described here; the port SEL is used to receive a high-level signal or a low-level signal sent by the control module 102, which is used to indicate the output voltage value or the output current value, so that the chip 1015 transmits the current value and the voltage value of the first power supply branch to the control module 102; the port CF1 is used to determine the output voltage value or the current value to the control module 102 according to the high-level signal or the low-level signal sent by the control module 102, and the port CF of the chip 1015 is used to multiply the current value and the voltage value to obtain the power consumption, and the power consumption is multiplied by the power consumption time to obtain the power consumption, and the calculated power consumption is output to the control module 102; and the port GND is grounded. The power consumption time can be obtained by a clock circuit inside the chip 1015 or sent by the control module 102 to the chip 1015, and the specific implementation of obtaining the power consumption time is not limited in the embodiment of the application.

[0107] In actual application, the resistance values of the resistors can be set as needed, and the embodiment of the application is not limited in this regard.

[0108] In actual application, if it is also necessary to have the function of detecting the current and voltage of the second power supply branch, the same current detection sub-module, voltage detection sub-module, and chip as the first power supply branch can also be set for the second power supply branch.

[0109] After determining the current value and the voltage value of each power supply branch, the control module 102 can determine the input voltage value of the power supply circuit, and then determine the available power of the power supply circuit according to the maximum current allowed to pass through the power supply circuit under normal working conditions in the home environment and the input voltage value of the power supply circuit; determine the power consumption of the second power supply branch according to the available power of the power supply circuit and the power consumption of the first power supply branch at this time, and send a power adjustment instruction to the charging pile based on the power consumption of the second power supply branch, so as to adjust the charging power of the charging pile.

[0110] More specifically, the control module 102 integrates the current and voltage of the first power supply branch to obtain the power consumption of the first power supply branch, integrates the maximum current allowed to pass by the power supply circuit under normal working conditions and the input voltage of the power supply circuit to obtain the available power of the power supply circuit, and the power consumption of the second power supply branch is the difference between the available power of the power supply circuit and the power consumption of the first power supply branch; and generates a power adjustment instruction according to the power consumption of the second power supply branch, and sends the power adjustment instruction to the charging pile; the charging pile is used to adjust the charging power of the charging pile in response to the power adjustment instruction.

[0111] In actual application, the power of the power consumption equipment of the family burst in different time periods is also different. For example, in the time period when the family members are active, the possibility of new power consumption equipment access is relatively large, while in the night rest period, the possibility of power consumption equipment access is very low. Therefore, the charging power of the charging pile can be adjusted in combination with the power consumption habits of the family members, so as to adapt to the power consumption habits of different groups of people, and at the same time, ensure the stability of the charging of the charging pile and the power consumption of other equipment in the family. The terminal can send power consumption habit related information to the control module 102.

[0112] Based on this, in some embodiments, the power control device can also include a communication module; wherein,

[0113] The control module 102 is also used to receive the fifth information sent by the terminal through the communication module, the fifth information is used to represent the power consumption habits of the family members, and the charging power of the charging pile is adjusted by using the first information and the fifth information; the fifth information can include power consumption time distribution information; the control module 102 determines the power consumption peak time period of the family according to the power consumption time distribution, sets a power threshold in the power consumption peak time period of the family, and the set power threshold is used to prevent the sudden access of other electronic equipment except the charging pile from causing the power supply circuit to be disconnected, that is, overcurrent tripping.

[0114] Exemplarily, the user can input the electricity habit related information of the family members (which can specifically include electricity time distribution information) by using an APP on the terminal, i.e., the fifth information, and the terminal sends the electricity habit related information of the family members including the electricity time distribution information to the control module 102 as the fifth information after receiving the input information. The control module 102 determines the electricity peak time period and the non-electricity peak time period of the family according to the electricity time distribution information. In the non-electricity peak time period, the control module 102 subtracts the total electricity power of the other electronic devices except the charging pile from the available power of the power supply circuit to obtain a result, and determines the obtained result as the charging power of the charging pile. In the electricity peak time period, a power threshold can be set in advance. The control module 102 subtracts the electricity power of the other electronic devices except the charging pile from the available power of the power supply circuit to obtain a difference value, determines the difference value as the residual power of the power supply circuit, and then subtracts the power threshold from the residual power of the power supply circuit to obtain a difference value, which is determined as the charging power to be allocated to the charging pile, and the power is allocated to the charging pile. In this way, if other electricity devices are suddenly connected in the family in the electricity peak time period, the total power of the suddenly connected electricity devices does not exceed the power threshold, so the power supply circuit will not be disconnected due to overcurrent, that is, the power supply circuit will not trip due to overcurrent.

[0115] Here, it is assumed that the control module 102 determines that the electricity peak time period of the family is from 19:00 to 22:00. In the non-electricity peak time period, the available power of the power supply circuit in the family is 8.8 kW, and the electricity power of the other electronic devices except the charging pile is 3 kW. The control module 102 subtracts the electricity power of the other electronic devices except the charging pile from the available power of the power supply circuit to obtain 8.8-2=6.8 kW, and determines the obtained difference value as the charging power allocated to the charging pile.

[0116] In the electricity peak time period, it is assumed that the threshold is 2 kW, the available power of the power supply circuit in the family is 8.8 kW, and the electricity power of the other electronic devices except the charging pile is 3 kW. The control module 102 determines that the residual power of the power supply circuit is 8.8-3=5.8 kW, subtracts the power threshold from the residual power of the power supply circuit to obtain 5.8-2=3.8 kW, and determines the obtained difference value as the charging power allocated to the charging pile. In this way, if other electricity devices are suddenly connected in the family in the electricity peak time period, such as a computer (power 0.3 kW), an air conditioner (power 1 kW), and a washing machine (power 0.5 kW), the total power of the suddenly connected electricity devices is 1.8 kW, which does not exceed the power threshold (2 kW), so the power supply circuit will not trip due to overcurrent.

[0117] In actual application, the power threshold value can be set according to needs, and embodiments of the present application do not limit this. In addition, in actual application, the power threshold value in the non-peak electricity consumption period can also be set, and the specific processing manner can refer to the processing procedure of the peak electricity consumption period, which will not be described here. Here, the peak electricity consumption period of the household can be determined according to the electricity consumption time distribution information, a smaller power threshold value is set in the non-peak electricity consumption period, and a larger power threshold value is set in the peak electricity consumption period.

[0118] In addition, the power threshold value can be set by the control module 102 (for example, a default value is set, that is, the value cannot be changed at any time), or the power threshold value can be input by the user through the APP on the terminal (the size of the power threshold value is variable), and the terminal sends the input power threshold value to the control module 102 after receiving the input power threshold value.

[0119] In actual application, in order to facilitate the user to view the electricity consumption, the electricity consumption can also be sent to the terminal used by the user.

[0120] Based on this, in some embodiments, the control module 102 is further configured to send the second information and / or the third information to the terminal through the communication module to present the first electricity consumption and / or the total electricity consumption on the terminal, so that the user can view the real-time first electricity consumption of the charging pile and / or the total electricity consumption of the power supply circuit on the terminal, thereby improving the user experience.

[0121] In some embodiments, the control module 102 and the terminal can communicate through a wireless manner, that is, the communication module can provide a wireless communication manner, so that the user can use conveniently and the user experience is improved.

[0122] In some embodiments, when the control module 102 and the terminal communicate through a wireless manner, the communication module can include at least one of a mobile hotspot (WIFI), a mobile network module, a Bluetooth (BT) module, and the like, that is, the control module 102 and the terminal can communicate based on at least one of WIFI, a mobile network, Bluetooth, and the like, and embodiments of the present application do not limit the specific implementation of the wireless communication manner; here, in actual application, the mobile network can include a fourth generation mobile communication technology (4G) network and / or a fifth generation mobile communication technology (5G) network, and the like, and embodiments of the present application do not limit the specific implementation of the mobile network.

[0123] In actual application, the power control device provided by the embodiments of the present application can also send the power supply data (such as the electricity consumption) required by the user to the background in the cloud, so that the user can view the power supply data at any time.

[0124] Based on this, in some embodiments, the control module 102 can upload the power supply data to the background through the communication module, and the background can send the power supply data to the terminal, so that the user can remotely view the power supply data on the terminal, such as viewing the first power consumption of the charging pile and / or the total power consumption of the power supply circuit. Among them, in actual application, the background can actively send the power supply data to the terminal, or send the power supply data to the terminal after receiving the request of the terminal.

[0125] Here, in actual application, when the terminal and the power control device cannot directly communicate, the terminal can also communicate with the power control device through the background. Illustratively, the user can set parameters (such as parameters corresponding to the fifth information and / or the seventh information) on the terminal, and the terminal sends these information to the background after receiving these information. The background can send these information to the control module 102 after receiving these information. The control module 102 adjusts the charging power of the charging pile by using these information after receiving the information sent by the background. The specific process of adjusting the charging power of the charging pile has been described in detail above, and will not be repeated here. Correspondingly, by using this scheme, the first power consumption of the charging pile and / or the total power consumption of the power supply circuit can still be viewed on the terminal, or the charging power of the charging pile can be adjusted through the terminal, even when the terminal and the power control device are beyond the communication distance, that is, cannot directly communicate.

[0126] In actual application, in order to ensure that the control module 102 and the charging pile can stably transmit data, without worrying about signal transmission failure due to signal problems, and thus causing charging power adjustment failure, the control module 102 and the charging pile can communicate in a stable communication mode.

[0127] Based on this, in some embodiments, the control module 102 and the charging pile communicate based on PLC or RS485 protocol. That is, the control module 102 and the charging pile communicate based on PLC or RS485 protocol through the communication module. Here, communicating based on PLC protocol can directly use the power supply line for communication, without the need to increase external cables, which is convenient to use and saves costs.

[0128] Of course, in actual application, the control module 102 and the charging pile can also communicate in a wireless manner. Specifically, the control module 102 and the charging pile can communicate based on at least one of WIFI, mobile network, Bluetooth, etc., and the specific implementation of the wireless communication manner is not limited in the embodiments of the present application.

[0129] In some embodiments, the display module 104 can include a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, etc. The display module 104 can present the first power consumption (i.e., the power consumption of the charging pile) and / or the total power consumption (i.e., the total power consumption of the power supply circuit), thereby serving as an electricity meter.

[0130] In actual application, when the control module 102 is powered on for the first time, a reset operation is needed to ensure that all components and registers are initialized; if the control module 102 encounters a software exception or system failure during execution, a reset operation is needed to initialize the control module 102 and clear the memory data; after firmware or software upgrade, the control module 102 also needs to be reset to load new program code.

[0131] Based on this, in some embodiments, the power control device can further include a reset module configured to receive a reset instruction and send the reset instruction to the control module 102.

[0132] The control module 102 is configured to receive the reset instruction sent by the reset module, perform system reset in response to the reset instruction, and control the leakage protection module 103 to perform self-checking. The reset refers to an operation of restoring the control module 102 to an initial state and clearing memory data.

[0133] Here, in actual application, a key or button can be provided on the power control device, and the provided key or button is configured to be used by a user to issue a reset instruction.

[0134] In the embodiments of the present application, a module is implemented by a circuit or a chip or a device, and therefore, the module can also be referred to as a circuit or a device. Accordingly, a sub-module can also be referred to as a sub-circuit or a device.

[0135] The power control device provided by the embodiment of the present application comprises a detection module 101 and a control module 102; wherein the detection module 101 is configured to detect at least the current and voltage of a first power supply branch in a home environment and send first information to the control module 102, the first power supply branch comprises a power supply branch for supplying power to other electronic devices in the home except the charging pile, and the first information comprises the relevant information of the detected current and voltage; the control module 102 is configured to adjust the charging power of the charging pile by using the first information; the device further comprises one or more of the following modules: a leakage protection module 103 configured to detect whether a leakage event occurs in a power supply circuit; when it is detected that the leakage event occurs in the power supply circuit, the power supply circuit is disconnected; the power supply circuit comprises the first power supply branch and / or a second power supply branch for supplying power to the charging pile; a display module 104 configured to receive second information sent by the control module and present a first power consumption associated with the second power supply branch, the second information is used to represent the first power consumption, and / or receive third information sent by the control module 102 and present a total power consumption associated with the first power supply branch and the second power supply branch, the third information is used to represent the total power consumption; the control module 102 is further configured to determine the power consumption associated with the second power supply branch and send the second information to the display module 104, and / or further configured to determine the total power consumption associated with the first power supply branch and the second power supply branch and send the third information to the display module 104. The power control device provided by the embodiment of the present application adjusts the charging power of the household charging pile according to the power consumption of other electronic devices in the home, thereby ensuring the stability of the charging of the charging pile and the power consumption of other devices in the home; at the same time, the device can be used as an electric meter and a leakage protection switch, thereby saving the cost of related devices and reducing the installation complexity.

[0136] Based on the above embodiment, the present application provides an application example of a power control device. As shown in the figure, Figure 9 the power control device provided by the application example comprises a current detection unit (i.e. the current detection sub-module 1011), a voltage detection unit (i.e. the voltage detection sub-detection module 1012), an MCU (i.e. the control module 102), a leakage detection unit (i.e. the leakage detection sub-module 1031), a circuit breaker (i.e. the circuit breaking sub-module 1032), a PLC communication unit, an RS485 unit, a WIFI / 4G / BT unit, and a reset unit (i.e. the reset module). Here, the PLC communication unit, the RS485 unit, and the WIFI / 4G / BT unit refer to the communication module described above.

[0137] The current detection unit is configured to detect the current of each branch of the power supply circuit and send current-related information to the MCU; the voltage detection unit is configured to detect the input voltage of the power supply circuit or the voltage of each branch of the power supply circuit and send voltage-related information to the MCU; the MCU obtains the detected current value and voltage value based on the current-related information and the voltage-related information, and determines the power consumption of the charging pile according to the detected current value and voltage value;

[0138] The leakage detection unit is configured to detect whether a leakage event occurs in the power supply circuit, and notify the MCU if the leakage event occurs, and the MCU causes the circuit breaker to disconnect the power supply circuit; the circuit breaker can also be configured to disconnect the power supply circuit when an overload or short circuit event occurs in the power supply circuit, and the MCU is further configured to control the circuit breaker to disconnect the power supply circuit when overcurrent occurs in the power supply circuit;

[0139] The PLC communication unit, the RS485 unit, and the WIFI / 4G / BT unit can be configured to enable the MCU to communicate with the charging pile, so that the MCU can control the power of the charging pile or obtain the current and voltage information of the charging pile; the WIFI / 4G / BT unit can also be configured to enable the terminal to communicate with the MCU, and the MCU can send power supply data (such as power consumption) to the terminal, and the terminal sends information to the MCU, including the maximum current allowed to pass through the power supply circuit under normal working conditions, the power threshold, and the power consumption habit information of family members, and the MCU determines the power consumption of the charging pile according to the information sent by the terminal to the MCU and the detected current value and voltage value;

[0140] The reset unit is configured to send a reset instruction to the MCU when the reset button is triggered, so that the MCU is reset, and the MCU sends a self-check instruction to the leakage detection unit to enable the leakage detection unit to perform self-checking.

[0141] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article, or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article, or device including the element.

[0142] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply a relative importance or an ordering between or among the indicated features. Thus, a feature defined with "first", "second", etc. can include at least one of the features implicitly or explicitly. In the description of the embodiments of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise explicitly specified. It should be noted that "first", "second", etc. are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0143] It should be understood that the "some embodiments" or "the foregoing embodiments" mentioned throughout the specification mean that the specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, "in some embodiments" or "based on the foregoing embodiments" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in any suitable manner in one or more embodiments without conflict.

[0144] The term "and / or" herein is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone.

[0145] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "connected" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the connection between two elements can be internal communication or interaction between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0146] The above is only a preferred embodiment of the present application, and is not used to limit the patent protection scope of the present application. Any equivalent structural transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A power control device, characterized by, The device comprises: a detection module and a control module; wherein, the detection module is configured to detect at least the current and voltage of a first power supply branch in a home environment, and send first information to the control module, the first power supply branch comprises a power supply branch for supplying power to electronic devices in the home other than the charging pile, and the first information comprises relevant information of the detected current and voltage; the control module is configured to adjust the charging power of the charging pile by using the first information; The device further comprises one or more of the following modules: a leakage protection module configured to detect whether a leakage event occurs in a power supply circuit, and disconnect the power supply circuit when detecting that the leakage event occurs in the power supply circuit; the power supply circuit comprises the first power supply branch and / or a second power supply branch for supplying power to the charging pile; a display module configured to receive second information sent by the control module, and present a first power consumption associated with the second power supply branch, the second information being used to represent the first power consumption, and / or receive third information sent by the control module, and present a total power consumption associated with the first power supply branch and the second power supply branch, the third information being used to represent the total power consumption; the control module is further configured to determine the power consumption associated with the second power supply branch, and send the second information to the display module, and / or determine the total power consumption associated with the first power supply branch and the second power supply branch, and send the third information to the display module.

2. The apparatus of claim 1, wherein, The leakage protection module comprises a leakage detection submodule and a circuit breaking submodule, wherein, the leakage detection submodule is configured to detect whether a leakage event occurs in the power supply circuit, and send fourth information to the control module when detecting that the leakage event occurs in the power supply circuit, the fourth information being used to represent that the leakage event occurs in the power supply circuit; the control module is further configured to receive the fourth information sent by the leakage detection submodule, and control the circuit breaking submodule to disconnect the power supply circuit.

3. The apparatus of claim 2, wherein, The circuit breaking submodule is further configured to disconnect the power supply circuit when an overload or short circuit event occurs in the power supply circuit.

4. The apparatus of claim 1, wherein, The detection module comprises a current detection submodule and a voltage detection submodule; wherein, the current detection submodule is configured to detect the current of the first power supply branch, and send first relevant information of the detected current value to the control module; the voltage detection submodule is configured to detect the voltage of the first power supply branch in the home environment, and send second relevant information of the detected voltage value to the control module; the control module is configured to receive the first relevant information and the second relevant information sent by the current detection submodule, and adjust the charging power of the charging pile according to the first relevant information and the second relevant information; or, The detection module comprises a current detection submodule, a voltage detection submodule and a chip; wherein, the current detection submodule is configured to detect the current of the first power supply branch in the home environment, and send third relevant information of the detected current value to the chip; The voltage detection submodule is configured to detect the voltage of the first power supply branch in the home environment, and send fourth related information of the detected voltage value to the chip; The chip is configured to receive the third related information sent by the current detection submodule and the fourth related information sent by the voltage detection submodule, and send the current value of the first power supply branch and the voltage value of the first power supply branch to the control module; The control module is configured to receive the current value of the first power supply branch and the voltage value of the first power supply branch sent by the chip, and adjust the charging power of the charging pile according to the current value of the first power supply branch and the voltage value of the first power supply branch.

5. The apparatus of claim 1, wherein, The device further comprises a communication module; The control module is further configured to receive fifth information sent by a terminal through the communication module, the fifth information being used to represent the power consumption habit of a family member, and adjust the charging power of the charging pile by using the first information and the fifth information.

6. The apparatus of claim 5, wherein, The control module is further configured to send the second information and / or the third information to the terminal through the communication module, so as to present the first power consumption and / or the total power consumption on the terminal.

7. The apparatus of claim 5, wherein, The communication module is configured to provide a wireless communication mode.

8. The apparatus of claim 1, wherein, The device further comprises: A reset module configured to receive a reset instruction and send the reset instruction to the control module; The control module is configured to receive the reset instruction sent by the reset module, perform system reset in response to the reset instruction, and control the leakage protection module to perform self-checking.

9. The apparatus of claim 1, wherein, The control module is configured to: determine the power consumption of the first power supply branch according to the current and voltage of the first power supply branch, determine the power consumption of the second power supply branch according to the available power of the power supply circuit and the power consumption of the first power supply branch, and generate a power adjustment instruction according to the power consumption of the second power supply branch, and send the power adjustment instruction to the charging pile; The charging pile is configured to adjust the charging power of the charging pile in response to the power adjustment instruction. The control module and the charging pile communicate based on a power line carrier (PLC) or RS485 protocol.

10. The device of any one of claims 1 to 9, wherein, ​

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