A multi-house shared charging pile and system based on a power metering chip

Abstract

The utility model belongs to charging technical field discloses a kind of multi-house sharing charging pile and system based on electric power metering chip, the charging pile includes: main control board, electric energy metering module is integrated on the main control board, and the electric energy metering module is used to measure the electricity consumption of charging;The main control board is also integrated with: controller, and the electric energy metering module is electrically connected with controller;Electromagnetic lock control module is electrically connected with controller, for unlocking and locking on the charging gun of charging pile;Power regulation module is electrically connected with controller, for adjusting the output power of charging pile;Communication module is connected with controller communication.The utility model integrates electric energy metering module on the main control board of charging pile, reduces the procurement cost of independent electric energy meter or external module;And the electricity consumption of charging can be calculated in charging process, the sharing of charging pile can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of charging technology, specifically relating to a multi-household shared charging pile and system based on a power metering chip. Background Technology

[0002] Electric vehicle charging piles are charging devices used for new energy vehicles. After a single charge, a new energy vehicle can travel for hundreds of kilometers. However, most users only need 10-20 kilometers for daily driving. This means that most new energy vehicle users only need to charge their vehicles once a week or even once every two weeks. This means that the charging piles installed by new energy vehicle owners in their own parking spaces are idle most of the time, with extremely low utilization.

[0003] Currently, private parking spaces in urban residential areas are mostly located together within a community. However, most existing home charging stations lack a metering system or a sharing mechanism based on investment and profit distribution. The inability to share charging stations inevitably leads to every household installing one, resulting in low utilization rates and increased economic costs for installation and equipment purchase. Furthermore, the installation of charging stations by every household will inevitably lead to excessive wiring in parking lots. Overly dense wiring can cause fires due to aging lines, posing a safety and fire hazard to residential communities. Utility Model Content

[0004] The purpose of this invention is to provide a multi-household shared charging pile based on an electricity metering chip to solve the problem that existing home private charging piles cannot be shared, resulting in low utilization of the charging piles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In the first aspect, this utility model provides a multi-household shared charging pile based on an electricity metering chip. The charging pile includes: a main control board, on which an electricity metering module is integrated, which is used to measure the electricity consumed during charging.

[0007] The main control board also integrates:

[0008] The controller, wherein the power metering module is electrically connected to the controller;

[0009] The electromagnetic lock control module, which is electrically connected to the controller, is used to unlock and lock the charging gun on the charging pile.

[0010] The power adjustment module, electrically connected to the controller, is used to adjust the output power of the charging pile;

[0011] The communication module is connected to the controller.

[0012] Preferably, the energy metering module includes an energy metering chip and a sampling circuit. The sampling output terminal of the sampling circuit is electrically connected to the input terminal of the energy metering chip, and the output terminal of the energy metering chip is electrically connected to the I / O port of the controller. The sampling circuit is used to collect the current signal and voltage signal of the vehicle during the charging process.

[0013] Preferably, the main control board also integrates a power module, which provides operating power to the controller, electromagnetic lock control module, power metering module, power regulation module and communication module.

[0014] Preferably, the power module includes: an AC-CDC circuit, a DC-CDC circuit, and a TTL level conversion circuit; the AC-CDC circuit is used to convert the charging power into DC voltage, the DC-CDC circuit is used to convert the DC voltage output by the AC-CDC circuit into voltages of various levels, including: DC+5V, DC+3.3V, and DC+3.8V; the TTL level conversion circuit is used to convert the DC voltage into TTL level.

[0015] Preferably, the electromagnetic lock control module includes: a relay control unit and an electromagnet, wherein the controlled terminal of the relay control unit is electrically connected to the control output terminal of the controller, and the power output terminal of the relay control unit is electrically connected to the power input terminal of the electromagnet. The electromagnet is used to unlock the charging gun on the charging pile after power is applied, and to lock the charging gun on the charging pile after power is cut off.

[0016] Preferably, the charging pile has a dual-gun charging structure, and the number of relay control units and electromagnets are both two sets.

[0017] Preferably, the main control board also integrates a travel limit sensing module, which is electrically connected to the controller and is used to detect the position of the charging gun.

[0018] Preferably, the main control board also integrates a human-machine interaction module, which is electrically connected to the controller. The human-machine interaction module includes at least an emergency stop button, a voice unit, and an RGB unit.

[0019] Preferably, the main control board also integrates a temperature detection module, which is electrically connected to the controller and is used to detect the temperature during the charging process.

[0020] Secondly, this utility model provides a multi-household shared charging system based on a power metering chip, the system comprising:

[0021] The aforementioned multi-household shared charging pile based on power metering chips;

[0022] server;

[0023] The management terminal and the sharing terminal are both wirelessly connected to a multi-household shared charging pile based on a power metering chip via a server.

[0024] The collaborative ground lock is electrically connected to the main control board of the multi-household shared charging pile. The main control board supplies power to the collaborative ground lock, and the collaborative ground lock is wirelessly connected to the server.

[0025] Beneficial effects:

[0026] 1. The shared charging pile of this utility model integrates the power metering module into the main control board of the charging pile, reducing the procurement cost of independent power meters or external modules. The integrated design simplifies wiring and improves installation efficiency by more than 30% compared with the traditional split solution. Furthermore, the power consumption during the charging process of new energy vehicles can be calculated, enabling the sharing of charging piles.

[0027] 2. The shared charging pile of this utility model uses a power adjustment module to adjust the output power of the charging pile, which can appropriately reduce the charging power when the power supply is tight, effectively slowing down the increase in the power load of the area.

[0028] 3. The management terminal and sharing terminal of the shared charging system of this utility model can be wirelessly connected to multiple shared charging piles through a communication module, which can realize remote control of the charging piles and facilitate remote management of the charging piles.

[0029] 4. The management terminal and sharing terminal of the shared charging system of this utility model can choose whether to charge a charging service fee based on the user's identity recognition;

[0030] 5. The shared charging system of this utility model can activate the cooperative ground lock when necessary to prevent fuel vehicles from occupying charging positions and to avoid improper use and waste of charging resources. Attached Figure Description

[0031] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0032] Figure 1 This is a block diagram of a multi-household shared charging pile based on a power metering chip, provided by one embodiment of this utility model.

[0033] Figure 2 This is a schematic diagram of the BL0942 metering chip and its peripheral circuit provided in one embodiment of the present invention.

[0034] Figure 3This is a schematic diagram of a current sampling sub-circuit provided in one embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of a voltage sampling sub-circuit provided in one embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the ML307R_DL chip and its peripheral circuit of a 4G communication module provided in one embodiment of this utility model.

[0037] Figure 6 This is a schematic diagram of the STM32F103RCT6 chip and its peripheral circuit provided in one embodiment of this utility model.

[0038] Figure 7 This is a schematic diagram of the W801 chip and its peripheral circuit provided in one embodiment of the present invention.

[0039] Figure 8 This is a schematic diagram of two sets of relay control units provided in one embodiment of this utility model;

[0040] Figure 9 This is a schematic diagram of a single-gun AM21-12W12V (AM21 60W-12V when dual guns have a coordinated ground lock) chip and its peripheral circuit provided in one embodiment of this utility model.

[0041] Figure 10 This is a schematic diagram of a DC-DC circuit provided in one embodiment of the present invention;

[0042] Figure 11 This is a schematic diagram of a TTL level conversion circuit provided in one embodiment of the present invention;

[0043] Figure 12 This is a schematic diagram of a voice unit provided in one embodiment of the present invention;

[0044] Figure 13 This is a schematic diagram of a power regulation module provided in one embodiment of the present invention;

[0045] Figure 14 This is a block diagram of a multi-household shared charging system based on a power metering chip, provided in one embodiment of this utility model.

[0046] Figure 15 This is a schematic diagram of an electromagnetic lock control module circuit provided in one embodiment of the present invention. Detailed Implementation

[0047] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0048] Example 1

[0049] Figure 1 This is a block diagram of a multi-household shared charging pile based on a power metering chip, provided by one embodiment of this utility model. Figure 1 As shown, this embodiment provides a multi-household shared charging pile based on a power metering chip. The charging pile includes a main control board, which integrates a power metering module, a controller, an electromagnetic lock control module, a power adjustment module, and a communication module. This embodiment reduces the procurement cost of independent power meters or external modules by integrating the power metering module onto the main control board of the charging pile. Furthermore, the integrated design simplifies wiring and improves installation efficiency by more than 30% compared to traditional split-type solutions. In addition, the power consumption during the charging process of new energy vehicles can be calculated, enabling the sharing of charging piles.

[0050] The power metering module is electrically connected to the controller and is used to measure the power consumed during charging. In this embodiment, the power metering module includes a power metering chip and a sampling circuit. The sampling output terminal of the sampling circuit is electrically connected to the input terminal of the power metering chip, and the output terminal of the power metering chip is electrically connected to the I / O port of the controller. The sampling circuit is used to collect the current and voltage signals of the vehicle during the charging process.

[0051] In this embodiment, the energy metering chip preferably uses the BL0942 metering chip, and the BL0942 metering chip and its peripheral circuitry are as follows: Figure 2 As shown.

[0052] In this embodiment, the sampling circuit includes a current sampling sub-circuit and a voltage sampling sub-circuit. The current sampling sub-circuit includes a current transformer L11, resistors R263, R262, and R264, capacitors C173 and C174. The connection relationship of the current sampling sub-circuit is as follows: Figure 3As shown, in this embodiment, the voltage across IN and IP is read by the BL0942 metering chip to calculate the corresponding current data. The voltage sampling sub-circuit includes: current transformer L10, resistors R272, R273, R265, R266, R267, R268, and R269. The connection relationship of the voltage sampling sub-circuit is as follows: Figure 4 As shown, the principle of the voltage sampling sub-circuit is similar to that of the current sampling sub-circuit, obtaining the corresponding voltage data. After calculating the current and voltage data, the BL0942 metering chip can calculate the electrical energy consumed by the new energy vehicle during charging, based on the charging time.

[0053] The communication module is connected to the controller. In this embodiment, the communication module preferably adopts a 4G communication module, which uses the ML307R_DL chip. The ML307R_DL chip and its peripheral circuits are as follows: Figure 5 As shown, the specific circuit structure of the 4G communication module is not described in detail in this embodiment. The communication module in this embodiment can establish a communication connection with the management terminal (PC computer, etc.) or the user terminal (mobile phone, etc.). The communication module can upload data such as the charging power, charging time, and charging user information of the new energy vehicle to the management terminal or the user terminal. The management terminal or the user terminal can visualize this data. At the same time, the management terminal or the user terminal can also remotely control the vehicle through the communication module and issue remote control commands (such as a command to stop charging).

[0054] In this embodiment, the automatic charging process can also be implemented using the currently available QR code charging. The implementation principle of QR code charging is a conventional technology in this field, so the specific implementation process of QR code charging is not described in detail in this embodiment.

[0055] In this embodiment, the electromagnetic lock control module circuit principle is as follows: Figure 15 As shown, the system includes: resistor R275, MOSFET Q21, and diode D17, wherein the gate of the MOSFET is connected to the controller. The electromagnetic lock control module is electrically connected to the controller and is used to unlock and lock the charging gun on the charging station.

[0056] The electromagnetic lock control module in this embodiment consists of a relay control unit and an electromagnet. The controlled terminal of the relay control unit is electrically connected to the control output terminal of the controller, and the power output terminal of the relay control unit is electrically connected to the power input terminal of the electromagnet. The electromagnet is used to unlock the charging gun on the charging pile after power is applied, and to lock the charging gun on the charging pile after power is cut off.

[0057] In this embodiment, the electromagnet mainly consists of an electromagnetic coil, a spring, and a lock cylinder. When the electromagnetic coil is energized, it generates a magnetic field that attracts the lock cylinder to unlock. When the electromagnetic coil is de-energized, the spring pushes the lock cylinder to lock.

[0058] In this embodiment, the charging pile is divided into a single-gun charging structure and a dual-gun charging structure. The single-gun charging structure has only one charging gun, and a set of relay control units and electromagnets are deployed. One set of relay control units and electromagnets is used to unlock or lock the charging gun. The dual-gun charging structure has two charging guns, and the number of relay control units and electromagnets is two sets. The two sets of relay control units and electromagnets are used to unlock or lock the two charging guns respectively.

[0059] In this embodiment, when the charging pile has a single-gun charging structure, the controller uses a W801 chip, and the W801 chip and its peripheral circuits are as follows: Figure 7 As shown; when the charging station has a dual-gun charging structure, the controller uses an STM32F103RCT6 chip, and the STM32F103RCT6 chip and its peripheral circuits are as follows. Figure 6 As shown, two BL0942 metering chips are used to measure the electrical energy consumed by the two charging guns during use.

[0060] In this embodiment, the circuits of the two sets of relay control units are as follows: Figure 8 As shown, one set of relay control units includes: resistor R248, optocoupler U110, resistor R249, transistor Q19, capacitor C166, diode D15, and relay RLY1. One end of resistor R248 is connected to a DC +3.3V power supply. The second pin of optocoupler U110 is connected to pin PB3 of the controller. The fifth and second pins of relay RLY1 are connected in series in the power supply circuit of the electromagnet. The controller outputs a high or low level to control the output of optocoupler U110, which in turn controls transistor Q19, indirectly controlling the 12V output from the 3.3V supply. Relay RLY1 controls the conduction of the power supply circuit for this electromagnet. Another set of relay control units includes: resistor R270, optocoupler U111, resistor R271, transistor Q20, capacitor C175, diode D16, and relay RLY2. The working principle of this set of relay control units is the same as that of the previous set.

[0061] In this embodiment, the controller controls the state of the transistor by controlling the pin voltage, thereby controlling the conduction and shutdown of the external electromagnet circuit. When the user clicks to unlock on the user terminal or the control terminal, the server sends an unlock command. After the controller executes the command, it controls the electromagnet module to conduct. The coil in the electromagnet module generates magnetic force to attract the lock core, unlocking the charging gun. The user can then remove the charging gun. When the charging gun is removed, the controller controls the relay to disconnect the power supply to the electromagnet, thereby locking the charging gun holder.

[0062] The power adjustment module is electrically connected to the controller. The power adjustment module is used to adjust the output power of the charging pile. It can appropriately reduce the charging power when the power is tight, effectively slowing down the increase of power load in the area.

[0063] like Figure 13 As shown, the power regulation module includes a PWM converter, an optocoupler circuit, and an amplifier connected in sequence. The PWM converter uses a TPS5430DDAR chip, which is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOS. The optocoupler circuit uses an EL357N(C)(TA)-Q optocoupler chip, and the amplifier uses an OAP2197IDR operational amplifier.

[0064] The OAP2197IDR operational amplifier in the power regulation module uses a resistor divider to reduce the maximum 12V sampling voltage to a maximum 3.3V sampling voltage, facilitating the controller's use of the ADC for sampling. When the user plugs the charging gun into the car, the vehicle's BMS (Battery Management System) will change the voltage sampled by the power regulation module at various stages, allowing the controller to determine different charging states based on the ADC sampling voltage. For example, a voltage change in the power regulation module, such as a drop from 12V to 9V, indicates that the charging gun is successfully connected to the new energy vehicle. When 9V drops to 6V, it indicates that the vehicle's BMS is ready to charge. A boost from 6V to 9V indicates that the new energy vehicle battery is fully charged. Another function of the power regulation module is to adjust the charging power using the PWM signal issued by the controller. For example, when there is a power shortage in the area, the charging power can be appropriately reduced to effectively alleviate the increase in power load in the area.

[0065] As a further optimization of this embodiment, the main control board also integrates a power module, a travel limit sensing module, a human-machine interaction module, and a temperature detection module;

[0066] The power module provides operating power to the controller, electromagnetic lock control module, power metering module, power regulation module, communication module, and collaborative ground lock. In this embodiment, the power module includes an AC-CDC circuit, a DC-CDC circuit, and a TTL level conversion circuit. The AC-CDC circuit converts the charging power to DC voltage, and the DC-CDC circuit converts the DC voltage output from the AC-CDC circuit to various voltage levels, including DC+5V, DC+3.3V, and DC+3.8V. The TTL level conversion circuit converts the DC voltage to TTL levels.

[0067] In this embodiment, the AC-CDC circuit includes an AM21-12W12V chip and its peripheral circuitry, as shown in the example below. Figure 9 As shown, the AM21-12W12V chip is used to convert the input AC220V alternating current into DC+12V direct current.

[0068] The DC-DC circuit includes the SCT2450STER power supply chip, the AMS1117-3.3 power supply chip, and the MT2492 power supply chip, among others. The peripheral circuits for these power supply chips include... Figure 10 As shown, the SCT2450STER power chip is used to convert DC+12V to DC+5V, and DC+5V is used to power the controller. The AMS1117-3.3 power chip is used to convert DC+5V to DC+3.3V, and DC+3.3V is used to power the communication module and the power metering module. The MT2492 power chip is used to convert DC+5V to DC+3.8V, and DC+3.8V is used to power the power metering module. The power metering module requires two voltage levels: DC+3.8V and DC+3.3V.

[0069] The TTL level conversion circuit is used to connect the communication module and the controller. The TTL level conversion circuit is as follows: Figure 11 As shown, the USART1 (USART1_RX and USART1_TX) of the TTL level conversion circuit is connected to the USART1 port of the controller (specifically, the controller's GPIO_PA_10 and GPIO_PA_9). The resistor R53 and the emitter of the transistor Q7 of the TTL level conversion circuit are connected to the UART0_RX and UART0_TX of the communication module, respectively, to enable communication between the controller and the module via the serial port. In addition, GPIO_PA_8 controls the restart of the 4G module.

[0070] The travel limit sensing module is electrically connected to the controller and is used to detect the position of the charging gun. The travel limit sensing module consists of a pressure plate and a micro switch. When the charging gun is in the specified position, the micro switch is in the closed state, and when the charging gun leaves the specified position, the micro switch is in the open state. Therefore, the controller realizes the sensing of the position of the charging gun by detecting the pin voltage of the travel limit sensing module.

[0071] The human-machine interaction module is electrically connected to the controller. The human-machine interaction module includes, but is not limited to, an emergency stop button, a voice unit, and an RGB unit. The emergency stop button can be pressed to stop all charging activities when there is an abnormality in the charging process. The RGB unit has LEDs of various colors, which can be used to display the charging status. For example, a white light indicates that the charger is not connected, a red light or a flashing red light indicates a fault, a green light indicates that the charger is charging, and a blue light indicates that the charger is charging.

[0072] In this embodiment, the voice unit is used to provide voice notifications when an action is performed, such as... Figure 12 As shown, the voice unit includes a speaker, a memory, and a drive circuit. Both the memory and the drive circuit are electrically connected to the controller. The drive circuit is used to drive the speaker to produce sound. The memory uses a W25Q 32JVSSIQ chip, and the drive circuit uses a HAA2028A(B)-R power amplifier chip. The memory stores audio information, and the controller sends commands to control the voice module to play audio information stored in the memory.

[0073] In this embodiment, when the voice module is working, it pulls the BUSY (SD) pin low, thereby controlling the drive circuit to start working; when the voice playback is finished, the BUSY pin returns to the normal high level, the drive circuit stops working and enters low power mode.

[0074] In this embodiment, the temperature detection module is electrically connected to the controller and is used to detect the temperature during the charging process. Therefore, the controller can set an upper temperature limit and force power off when the temperature reaches the set value.

[0075] Example 2

[0076] Figure 14 This is a block diagram of a multi-household shared charging system based on a power metering chip, provided by one embodiment of this utility model. Figure 14As shown in the figure, this embodiment provides a multi-household shared charging system based on a power metering chip. The system includes: a multi-household shared charging pile based on a power metering chip as described in Embodiment 1, a server, a management terminal, and a sharing terminal. The management terminal and the sharing terminal are both wirelessly connected to the multi-household shared charging pile based on the power metering chip through the server. The management terminal is used by the administrator to comprehensively manage the multi-household shared charging pile. The management terminal can be a PC or other computer. The user terminal is used by the user to obtain the charging access permission they need and to control the opening and closing of the charging pile through the user terminal.

[0077] The collaborative parking lock is wiredly connected to the main control board of the multi-household shared charging pile. The main control board's power module supplies power to the collaborative parking lock. The collaborative parking lock is wirelessly connected to the server for receiving and sending collaborative commands. The server controls the unlocking and locking of the collaborative parking lock. Deployed in parking spaces, the collaborative parking lock prevents vehicles from using the parking space after it is locked, avoiding the occupation of charging spaces by fuel-powered vehicles and preventing the improper use and waste of charging resources. The collaborative parking lock is powered by the AC-CDC module of the charging pile's main control board. The AC-CDC module uses an AM21 60W-12V power module to power the collaborative parking locks, which are paired with two charging guns and installed in two separate parking spaces. For example: Figure 9 The AC / CDC mode uses the AM21 60W-12V power conversion module. With the external EMC circuit design of the module, the AC / CDC can stably output 12V 5A, so that there is enough current to power two ground locks.

[0078] Therefore, in this embodiment, the shared charging pile integrates the energy metering module onto the main control board of the charging pile, reducing the procurement cost of independent energy meters or external modules. The integrated design simplifies wiring and improves installation efficiency by more than 30% compared to traditional split-type solutions. Furthermore, the charging consumption of new energy vehicles can be calculated during charging, enabling the sharing of charging piles. The management and sharing terminals of the shared charging system can wirelessly connect with multiple shared charging piles via a communication module, enabling remote control and management of the charging piles. When the charging pile has a dual-gun charging structure, a coordinated parking lock needs to be deployed in each of the two parking spaces. The coordinated parking locks prevent fuel vehicles from occupying charging spaces and avoid the improper use and waste of charging resources.

[0079] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-household shared charging pile based on an electricity metering chip, characterized in that, The charging pile includes: a main control board, on which an energy metering module is integrated, which is used to measure the amount of electricity consumed during charging; The main control board also integrates: The controller, wherein the power metering module is electrically connected to the controller; The electromagnetic lock control module, which is electrically connected to the controller, is used to unlock and lock the charging gun on the charging pile. The power adjustment module, electrically connected to the controller, is used to adjust the output power of the charging pile; The communication module is connected to the controller.

2. The multi-household shared charging pile based on a power metering chip according to claim 1, characterized in that, The power metering module includes a power metering chip and a sampling circuit. The sampling output terminal of the sampling circuit is electrically connected to the input terminal of the power metering chip, and the output terminal of the power metering chip is electrically connected to the I / O port of the controller. The sampling circuit is used to collect the current signal and voltage signal of the vehicle during the charging process.

3. The multi-household shared charging pile based on a power metering chip according to claim 1, characterized in that, The main control board also integrates a power module, which provides operating power to the controller, electromagnetic lock control module, power metering module, power regulation module, and communication module.

4. The multi-household shared charging pile based on a power metering chip according to claim 3, characterized in that, The power module includes: an ACDC circuit, a DC-DC circuit, and a TTL level conversion circuit; the ACDC circuit is used to convert the charging power into DC voltage, the DC-DC circuit is used to convert the DC voltage output by the ACDC circuit into voltages of various levels, including: DC+5V, DC+3.3V, and DC+3.8V; the TTL level conversion circuit is used to convert the DC voltage into TTL level.

5. The multi-household shared charging pile based on a power metering chip according to claim 1, characterized in that, The electromagnetic lock control module includes a relay control unit and an electromagnet. The controlled terminal of the relay control unit is electrically connected to the control output terminal of the controller, and the power output terminal of the relay control unit is electrically connected to the power input terminal of the electromagnet. The electromagnet is used to unlock the charging gun on the charging pile after power is applied, and to lock the charging gun on the charging pile after power is cut off.

6. The multi-household shared charging pile based on a power metering chip according to claim 5, characterized in that, The charging pile has a dual-gun charging structure, and the relay control unit and electromagnet are both in two sets.

7. The multi-household shared charging pile based on a power metering chip according to claim 1, characterized in that, The main control board also integrates a travel limit sensing module, which is electrically connected to the controller and is used to detect the position of the charging gun.

8. The multi-household shared charging pile based on a power metering chip according to claim 1, characterized in that, The main control board also integrates a human-computer interaction module, which is electrically connected to the controller. The human-computer interaction module includes at least an emergency stop button, a voice unit, and an RGB unit.

9. The multi-household shared charging pile based on a power metering chip according to claim 1, characterized in that, The main control board also integrates a temperature detection module, which is electrically connected to the controller and is used to detect the temperature during the charging process.

10. A multi-household shared charging system based on an electricity metering chip, characterized in that, The system includes: Multi-household shared charging pile based on power metering chip as described in any one of claims 1-9; server; The management terminal and the sharing terminal are both wirelessly connected to a multi-household shared charging pile based on a power metering chip via a server. The collaborative ground lock is electrically connected to the main control board of the multi-household shared charging pile. The main control board supplies power to the collaborative ground lock, and the collaborative ground lock is wirelessly connected to the server.

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