Intelligent distribution box
By reserving the charging gun assembly in the smart distribution box to expand the interface and cavity and designing the charging gun assembly as an option, the existing smart distribution box is solved by high cost and inability to meet the needs of the electric vehicle charging gun function. This issue of user needs enables flexibility and customization, reduces additional costs, and supports charging and vehicle-to-grid applications for electric vehicles.
Patent Information
- Application Number
- CN202411659481.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-01-03
AI Technical Summary
The existing smart distribution boxes are costly and cannot meet multiple user needs when expanding the charging gun function of the electric vehicle and lack flexibility to avoid additional fees without the need for the charging gun function.
Design an intelligent distribution box to reserve the charging gun assembly expansion interface and cavity. The charging gun assembly is an option. Users can install it according to their needs. The charging gun function is expanded through the charging gun assembly cavity and control board, and support electric power. Charge and discharge of cars and car-to-grid (V2G) applications.
It realizes the flexibility and customization of the smart distribution box. Users can choose whether to install the charging gun assembly according to their needs, which reduces additional costs, meets the charging needs of different users, and improves the scalability and safety of the system.
Smart Images

Figure CN119253441A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of intelligent distribution boxes, and in particular to an intelligent distribution box. Background Art
[0002] The biggest difference between smart distribution boxes and traditional distribution boxes is whether they have the ability of automation and intelligent monitoring. Traditional distribution boxes can only realize basic switch control functions and cannot monitor and remotely control the operating status of power equipment in real time. When data such as current and voltage exceed the standard, it is impossible to issue warnings and take measures in time, resulting in damage to power equipment and instability of the power system. At the same time, ordinary distribution boxes lack real-time collection and analysis of power system data and cannot effectively save energy and optimize management. In contrast, smart distribution boxes have powerful intelligent control functions in terms of automation control, real-time power monitoring, remote control, energy-saving optimization, etc. Smart distribution boxes play a vital role in home energy storage products. They provide families with safe, intelligent and efficient electricity guarantees and are key equipment for achieving stable operation and optimized management of home energy storage systems.
[0003] As the market share of new energy vehicles increases, the demand for car charging piles by car owners also increases, and electric vehicles have gradually become one of the important household power loads. However, unlike ordinary household power loads, before charging and discharging between electric vehicles and household energy storage products, it is necessary to communicate and confirm with the electric vehicles through the charging pile before charging and discharging can be carried out. Therefore, electric vehicles cannot be simply connected to the smart distribution box as power loads. An existing smart distribution box is independently set up with a household car charging pile, and there is no mutual linkage between the two. Therefore, this type of smart distribution box cannot provide safe electricity use, smart electricity use and other functions for household car charging piles; another existing smart distribution box deeply integrates the function of a car charging gun, and the two are combined into one, and its cost is relatively high. This smart distribution box can provide safe electricity use, smart electricity use and other functions for household car charging piles, but for users who do not need the function of a car charging gun, users need to pay an additional fee for this, so this type of smart distribution box cannot meet the needs of various users well. Summary of the invention
[0004] In order to solve or improve the above-mentioned technical problem of poor expansibility of existing distribution boxes.
[0005] An object of the present invention is to provide an intelligent distribution box.
[0006] To achieve the above-mentioned objectives, the present invention provides an intelligent distribution box, comprising: a box body; a charging gun assembly cavity, which is arranged in the box body, and the charging gun assembly cavity is used to accommodate the charging gun assembly when the intelligent distribution box expands the charging gun function of the electric vehicle; a load metering board, which is arranged in the box body, and the load metering board includes multiple controllable load circuits, and a first signal terminal is provided on the load metering board, and the first signal terminal is used to adapt to the second signal terminal of the charging gun assembly; a control board, which is arranged in the box body, and the control board is used to monitor or control the multiple controllable load circuits. The control board is also used to monitor or control the charging gun assembly after the first signal terminal is connected to the second signal terminal and the power line of the charging gun assembly is connected to at least one controllable load circuit.
[0007] The smart distribution box provided by the present invention reserves an expansion interface of the charging gun assembly and a reserved charging gun assembly cavity before leaving the factory. When the user uses the smart distribution box, if the demand for electric vehicle charging increases, the user can purchase a charging gun assembly compatible with the smart distribution box. By placing the charging gun assembly into the reserved charging gun assembly cavity and connecting the relevant interface of the charging gun assembly with the reserved charging gun assembly expansion interface, the smart distribution box can quickly expand the electric vehicle charging gun function. The smart distribution box provided by the present invention utilizes a modular design of the charging gun function, which can quickly and conveniently realize the post-installation of the charging gun assembly on the smart distribution box, and at the same time can meet the needs of different users in terms of charging gun requirements.
[0008] It can be understood that when using the charging gun assembly to charge and discharge an electric vehicle, it must be communicated and confirmed with the electric vehicle through the charging pile before it can be carried out. Therefore, the way an electric vehicle is connected to a smart distribution box is different from the way an ordinary power load is connected to a smart distribution box.
[0009] The intelligent distribution box includes a box body, a load metering board and a control board. On this basis, a charging gun assembly cavity is provided in the box body. By installing the optional charging gun assembly in the charging gun assembly cavity and expanding the interface of the charging gun assembly, the controllable load of the intelligent distribution box can be expanded according to different usage scenarios, that is, the use of the charging gun assembly is increased on the basis of the original installation of the intelligent distribution box. Specifically, the charging gun assembly itself can be assembled on the box body, that is, it can be installed on the basis of the structure of the intelligent distribution box itself. The load metering board provides monitoring and metering of multiple controllable load circuits, records current, voltage and other parameters to achieve precise power management, and can be connected to each load circuit through a power line. The first signal terminal is used to connect to the second signal terminal of the charging gun assembly.
[0010] Among them, the controllable load circuit is integrated on the load metering board, allowing independent control of each connected load, such as turning the power on or off, adjusting the power supply, etc. Each circuit has an independent wiring terminal. It can be understood that the controllable load circuit is used to connect to the power output port of the load metering board and receive signal instructions from the control board.
[0011] The first signal terminal is located on the load metering board to facilitate the insertion and removal of the signal line. It is connected to the second signal terminal of the charging gun assembly through the signal line to transmit control signals and status information.
[0012] It should be emphasized that in this solution, a control board is provided in the box body, which can manage the switching state of the load circuit and adjust the system operation according to the external signal, by connecting the signal line to the load metering board and the first signal terminal, and connecting the second signal terminal of the charging gun assembly with the first signal terminal through the signal line, ensuring that after the power line and the signal terminal are successfully connected, the control board can effectively monitor or control the charging gun assembly, thereby realizing the expansion of the charging gun function, and then meeting the requirements of different users in terms of charging gun needs.
[0013] In addition, the above technical solution provided by the present invention may also have the following additional technical features:
[0014] In the above technical solution, the charging gun assembly is an optional accessory.
[0015] In this solution, the charging gun assembly is an optional accessory, so that users can choose whether to equip the charging gun assembly according to their actual needs, so that the smart distribution box can better meet the diverse needs of different users. Some users may not need the charging function, while for users who have electric vehicle charging needs, they can choose to add this optional accessory, which improves the flexibility and customization of the smart distribution box.
[0016] In addition, since the charging gun assembly is an optional component, the design of the smart distribution box can be better compatible with different application scenarios and user needs. Even if the main function of the smart distribution box is power distribution and management, its function can be expanded by adding charging gun components without affecting its basic power management function.
[0017] If the user does not choose the charging gun assembly in the early stage, but has charging needs in the later stage, the charging gun assembly can be easily installed and integrated as an optional accessory to achieve system upgrades and modifications without replacing the entire smart distribution box.
[0018] In the above technical solution, an opening is provided on the side wall of the box; the charging gun assembly includes a connected gun body and a charging cable, the gun body is arranged outside the box, the charging cable includes at least one power line and at least one signal line, part of the charging cable passes through the opening and extends into the box, one end of the power line is used to be electrically connected to at least one controllable load circuit; one end of the signal line is provided with a second signal terminal adapted to the first signal terminal.
[0019] By setting an opening on the box body, specifically on the side wall, and limiting the charging gun assembly to include a gun body and a charging cable, the opening provides a channel for the charging cable of the charging gun assembly to enter the box body, so that the charging cable can be smoothly introduced from outside the box body into the box body, thereby achieving connection with the internal components of the smart distribution box, while maintaining the integrity of the box body and a certain degree of protection performance.
[0020] The gun body serves as an interface for user operation and is used to connect an electric vehicle for charging. The gun body is connected to a controllable load circuit and a signal terminal inside the box through a charging cable, allowing the user to conveniently perform charging operations outside the box, thereby improving the convenience of use.
[0021] Among them, the charging line includes a power line and a signal line. The power line is used to transmit electricity and provide the electric energy required for charging for the electric vehicle. One end of the power line is electrically connected to at least one controllable load circuit, realizing the power transmission from the intelligent distribution box to the electric vehicle, ensuring the realization of the charging function. The signal line is used to transmit signals, which are used to control the charging process and transmit relevant information. The signal line and the power line are partially located outside the box and partially pass through the opening of the side wall of the box to enter the box. By providing a second signal terminal that is compatible with the first signal terminal at one end of the signal line for signal connection with the load metering board in the intelligent distribution box, the control board in the intelligent distribution box can accurately control the charging process and realize intelligent charging management.
[0022] In the above technical solution, the charging line includes two power lines, the two power lines include a live wire and a ground wire; the controllable load circuit includes a circuit breaker, the live wire is electrically connected to the circuit breaker of a controllable load circuit, and the ground wire is electrically connected to the grounding terminal of the intelligent distribution box.
[0023] In this solution, the charging cable includes a live wire and a ground wire. The live wire serves as the main power supply line in the charging process, providing the required electrical energy for charging the electric vehicle. The voltage of the live wire is the main source of energy in the charging process. In some power supply scenarios, the voltage corresponding to a live wire is 120V. Of course, its voltage value is usually determined according to different charging standards (such as the common 220V in home charging piles).
[0024] By electrically connecting a live wire to a circuit breaker of a controllable load circuit, the on and off of the live wire can be controlled by the circuit breaker, realizing effective management of the live wire current during the charging process. When abnormal conditions such as overload and short circuit occur, the circuit breaker can quickly cut off the live wire circuit to protect the safety of the entire charging system and prevent the occurrence of dangerous situations such as damage to electrical equipment and fire.
[0025] The ground wire provides safe grounding protection for the entire charging system and is specifically connected to the ground terminal of the entire intelligent distribution box. During the charging process, the ground wire can conduct the leakage current that may occur in the device to the ground, avoiding the risk of electric shock and ensuring the safety of users and equipment. Ensure that the metal shell and other parts of the charging device maintain the same potential as the ground to prevent static electricity accumulation and other factors that may affect the normal operation and safety of the equipment.
[0026] A well-grounded system helps improve the electromagnetic compatibility of the entire charging system and reduce the impact of electromagnetic interference on the charging device and surrounding electronic equipment.
[0027] The circuit breaker in the controllable load circuit acts as a circuit protection device that can monitor the current in the circuit. When the current in the circuit exceeds the rated current of the circuit breaker (for example, a short circuit or overload occurs during charging), the circuit breaker will automatically cut off the circuit to prevent excessive current from damaging the wires, charging equipment and other electrical components in the circuit.
[0028] Under normal charging conditions, the circuit breaker is in a closed state, allowing current to pass and ensuring the normal charging process.
[0029] Because it is located in the controllable load circuit, the action of the circuit breaker can be monitored by the control panel of the intelligent distribution box, thereby realizing functions such as monitoring the charging status and fault alarm. For example, when the circuit breaker cuts off the circuit due to a fault, the control panel can detect this situation and send the corresponding fault prompt information to the user.
[0030] In the above technical solution, at least one signal line is used for signal exchange and charging confirmation between the control board and the charging gun assembly after the first signal terminal and the second signal terminal are connected.
[0031] When the first signal terminal and the second signal terminal are connected, the control board and the charging gun assembly will exchange signals through the signal line to achieve control. In addition, the signal line can also be used to realize the charging confirmation between the control board and the charging gun assembly. It can be understood that the charging confirmation includes but is not limited to the handshake protocol transmission confirmation before the AC power module or the oil engine module of the smart distribution box supplies power to the charging gun assembly to charge the connected electric vehicle, and the reverse power supply of the electric vehicle, such as the handshake protocol transmission confirmation before the power in the electric vehicle is transmitted to the smart distribution box through the charging gun assembly and then transferred to the power grid or household equipment.
[0032] In the above technical solution, at least one signal line includes two signal lines, and two first signal terminals are provided on the corresponding load metering board. The corresponding two signal lines are respectively connected to two second signal terminals. After the two first signal terminals and the two second signal terminals are connected, one of the signal lines is used for signal exchange between the control board and the charging gun, and the other signal line is used for charging confirmation.
[0033] In this solution, the number of signal lines includes two, and the two signal lines respectively have first signal terminals set on the load metering board. When the two first signal terminals are respectively connected to the corresponding second signal terminals, one of the signal lines performs signal exchange and the other signal line performs charging confirmation.
[0034] In addition, a single signal line only involves one function, reducing the possibility of failure. Even if a failure occurs, the specific signal line where the failure occurs can be identified and the corresponding line replaced to reduce replacement costs.
[0035] In the above technical solution, the charging cable includes three power lines, and the three power lines include a first live wire, a second live wire and a ground wire; the controllable load circuit includes a circuit breaker, and the first live wire and the second live wire are electrically connected to the circuit breakers corresponding to the two controllable load circuits respectively, and the wires are electrically connected to the ground terminal of the intelligent distribution box.
[0036] In this solution, the charging line includes a first live wire, a second live wire and a ground wire, wherein the first live wire and the second live wire are electrically connected to the circuit breaker respectively. The live wires serve as two power supply lines in the charging process, and each live wire is electrically connected to a circuit breaker of a controllable load circuit. Through the control of the circuit breaker, the current of the first live wire is managed. During normal charging, the circuit breaker is closed, and the current charges or reversely charges the electric vehicle through the first live wire and the second live wire; when an abnormal situation such as overload or short circuit occurs, the circuit breaker is disconnected to protect the circuit and equipment safety.
[0037] Generally, the voltage corresponding to a live wire is 120V. In this solution, it can be adapted to a 240V voltage scenario.
[0038] In the above technical solution, the charging gun assembly is used to connect to the electric vehicle. After the gun body of the charging gun assembly is connected to the charging port of the electric vehicle, the control panel is used to control the charging gun assembly to charge the electric vehicle, or control the power of the electric vehicle to be transmitted to the smart distribution box.
[0039] When the gun body of the charging gun assembly is connected to the charging port of the electric vehicle, the control panel can start the charging process to ensure that electric energy is transmitted from the controllable load circuit of the smart distribution box through the charging gun assembly to the battery of the electric vehicle, thereby realizing the charging function of the electric vehicle.
[0040] In addition, it can not only control the charging of electric vehicles, but also control the transmission of electric power from electric vehicles to the outside, which can meet the application needs of vehicle-to-grid (V2G) and help achieve optimal utilization of energy and balance of the power grid.
[0041] By controlling the direction of electric vehicle power transmission, a two-way flow of energy is achieved. When the grid demand is peak, electric vehicles can feed back power to the grid, playing a certain role in peak load regulation; when the grid demand is low, electric vehicles can be charged to achieve efficient use of energy.
[0042] The above technical solution also includes: a card slot, which is arranged in the box body, and the card slot is arranged corresponding to the opening; a clamp, which is detachably connected to the card slot, and the clamp is connected to the card slot to fix the charging cable.
[0043] In this technical solution, the management and fixing functions of the charging cable are further enhanced by the card slot and the clamp. The card slot is arranged in the box body and corresponds to the opening to ensure that the charging cable can pass smoothly, and a special area is provided to place the charging cable to prevent it from interfering with other electrical components. The clamp is detachably connected to the card slot to fix the charging cable to ensure that the charging cable will not loosen or be pulled during use.
[0044] It can be understood that the position of the card slot corresponds to the opening, so that the charging cable can easily enter the box through the opening and be well fixed and managed inside the box.
[0045] In the above technical solution, the controllable load circuit includes a load circuit breaker, and one end of the power line is connected to the load circuit breaker.
[0046] In this technical solution, the controllable load circuit mainly includes a load circuit breaker, wherein the load circuit breaker is used to control the power supply of each load inside the intelligent distribution box, and can cut off the current in time when a fault occurs to protect the load equipment.
[0047] One end of the power line is connected to the load circuit breaker, which can bring power from the power source to the load inside the smart distribution box.
[0048] The load circuit breaker is usually connected to a control panel so that the control panel can control the on and off of the load as required.
[0049] The above technical solution also includes: an input module, the input module and the load circuit breaker are arranged at intervals along the first direction of the box, one side of the box in the first direction is provided with an input hole for the input cable to pass through, and the input module is arranged close to the input hole.
[0050] In this technical solution, the input module and the load circuit breaker are arranged at intervals along the first direction of the box, and an input hole for the input cable to pass through is provided on one side of the box, and the input module is arranged close to the input hole. The input cable enters the intelligent distribution box through the input hole and is connected to the input module. The input module and the load circuit breaker are arranged at intervals in the first direction and are connected through an internal circuit to achieve distribution and protection of electric energy.
[0051] The input hole is located on one side of the box, which is convenient for input cable access. The input module is set close to the input hole, so that the input cable can be directly connected to the input module, reducing the length and loss of the line. The load circuit breaker is spaced apart from the input module in the first direction, which is convenient for independent control and protection of each load.
[0052] By arranging the input module and the load circuit breaker at intervals along the first direction and setting the input hole on one side of the box, this design optimizes the structure and function of the intelligent distribution box. It provides a convenient cable access method, reduces line loss, realizes independent control and protection of each load, and improves the safety and reliability of the system.
[0053] The above technical solution also includes: a cover plate, which is detachably connected to the side wall, and the cover plate is connected to the side wall to cover the opening.
[0054] Since the charging gun assembly is optional, when the charging gun assembly is not provided, a removable cover is provided to cover the opening, thereby facilitating maintenance and wiring operations while protecting internal components.
[0055] Generally, part of the charging gun assembly is located outside the box, which is convenient for users to plug and unplug the charging gun, and at the same time introduce the charging cable into the box for connection, ensuring that the cover can tightly cover the opening to provide protection and safety.
[0056] The above technical solution also includes: a leakage protector, which is arranged on the cover plate and the charging line passes through the leakage protector.
[0057] In this technical solution, by setting a leakage protector on the cover plate, inspection and maintenance can be carried out when necessary, and it is also convenient to quickly cut off the power supply when leakage occurs. In addition, since the charging line passes through the leakage protector, the leakage protector is used to detect leakage in the circuit. When leakage occurs, the power supply can be quickly cut off to protect the safety of personnel and equipment. Specifically, the power line in the charging line passes through the leakage protector, so that the leakage protector can monitor the current in the power line in real time.
[0058] It is understandable that the leakage protector can detect and deal with leakage problems in time to ensure the safe operation of the electrical system. When the leakage current is detected to exceed the set value, the leakage protector will quickly cut off the power supply to avoid electric shock to personnel and damage to equipment.
[0059] Additional aspects and advantages of the technical solutions of the present invention will become apparent in the following description or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0060] Figure 1 A schematic structural diagram of an intelligent distribution box according to an embodiment of the present invention is shown;
[0061] Figure 2 A schematic structural diagram of a load metering plate according to an embodiment of the present invention is shown;
[0062] Figure 3 A schematic diagram of the structure of a double load metering plate according to an embodiment of the present invention is shown;
[0063] Figure 4 A schematic structural diagram of a charging gun assembly according to an embodiment of the present invention is shown;
[0064] Figure 5 A schematic diagram of the structure of an intelligent distribution box according to an embodiment of the present application is shown;
[0065] Figure 6 A schematic diagram of a power distribution system according to an embodiment of the present invention is shown.
[0066] in, Figures 1 to 6 The corresponding relationship between the reference numerals and the component names is as follows:
[0067] 100: intelligent distribution box; 102: box body; 1022: opening; 1024: input hole; 103: charging gun assembly cavity; 104: cover plate; 106: control board; 1062: circuit breaker; 1064: load circuit breaker; 1066: input module; 108: charging gun assembly; 1082: gun body; 110: charging line; 1102: power line; 1104: signal line; 112: load metering board; 1142: slot; 1144: clamp; 116: leakage protector; 1182: first signal terminal; 1184: second signal terminal;
[0068] 200: power distribution system; 202: input cables; 204: electric vehicle. DETAILED DESCRIPTION
[0069] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0070] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.
[0071] An existing smart distribution box is independently set up with a household car charging pile, and there is no mutual linkage between the two. Therefore, this smart distribution box cannot provide the household car charging pile with functions such as safe electricity use and smart electricity use; another existing smart distribution box deeply integrates the function of a car charging gun, and the two are combined into one, and its cost is relatively high. This smart distribution box can provide the household car charging pile with functions such as safe electricity use and smart electricity use, but for users who do not need the car charging gun function, the users need to pay an additional fee for it. Therefore, this smart distribution box cannot meet the needs of various users well.
[0072] In view of this, if Figure 1 , Figure 4 and Figure 5 As shown, the present invention proposes a new intelligent distribution box 100, including: a box body 102; a charging gun assembly cavity 103, which is arranged in the box body 102, and the charging gun assembly cavity 103 is used to accommodate the charging gun assembly 108 when the intelligent distribution box 100 expands the charging gun function of the electric vehicle; a load metering board 112, which is arranged in the box body 102, and the load metering board 112 includes a plurality of controllable load circuits, and a first signal terminal 1182 is provided on the load metering board 112, and the first signal terminal 1182 is used to adapt to the second signal terminal 1184 of the charging gun assembly 108; a control board, which is arranged in the box body 102, and the control board is used to monitor or control the plurality of controllable load circuits. The control board is also used to monitor or control the charging gun assembly 108 after the first signal terminal 1182 is connected to the second signal terminal 1184 and the power line 1102 of the charging gun assembly 108 is connected to at least one controllable load circuit.
[0073] The smart distribution box 100 provided by the present invention reserves an expansion interface of the charging gun assembly 108 and a reserved charging gun assembly cavity 103 before leaving the factory. When the user uses the smart distribution box 100, if the demand for charging an electric vehicle increases, the user can purchase a charging gun assembly 108 compatible with the smart distribution box 100. By placing the charging gun assembly 108 into the reserved charging gun assembly cavity 103 and connecting the relevant interface of the charging gun assembly 108 with the reserved expansion interface of the charging gun assembly 108, the smart distribution box 100 can quickly expand the electric vehicle charging gun function. The smart distribution box 100 provided by the present invention utilizes a modular design of the charging gun function, which can quickly and conveniently realize the rear-mounted charging gun assembly 108 of the smart distribution box 100. At the same time, for users who do not need the charging gun function, the charging gun assembly 108 is not installed, and the user does not need to pay extra for the charging gun assembly 108. For users who need the charging gun function, the smart distribution box 100 can also quickly expand the charging gun function. Therefore, the smart distribution box 100 provided by the present invention can well meet the requirements of different users in terms of the charging gun demand.
[0074] It can be understood that when using the charging gun assembly 108 to charge and discharge an electric vehicle, it is necessary to communicate and confirm with the electric vehicle through the charging pile. Therefore, the way the electric vehicle is connected to the smart distribution box 100 is different from the way ordinary power loads are connected to the smart distribution box 100.
[0075] The intelligent distribution box 100 includes a box body 102, a load metering board 112 and a control board. On this basis, a charging gun assembly cavity 103 is provided in the box body 102. By installing the optional charging gun assembly 108 in the charging gun assembly cavity 103 and expanding the interface of the charging gun assembly 108, the controllable load of the intelligent distribution box 100 can be expanded according to different usage scenarios, that is, the use of the charging gun assembly 108 is increased on the basis of the original installation of the intelligent distribution box 100. Specifically, the charging gun assembly 108 itself can be assembled on the box body 102, that is, it can be installed on the basis of the structure of the intelligent distribution box 100 itself. The load metering board 112 provides monitoring and metering of multiple controllable load circuits, records parameters such as current and voltage to achieve accurate power management, and can be connected to each load circuit through the power line 1102. The first signal terminal 1182 is used to connect to the second signal terminal 1184 of the charging gun assembly 108.
[0076] Among them, the controllable load circuit is integrated on the load metering board 112, allowing independent control of each connected load, such as turning on or off the power supply, adjusting the power supply, etc. Each circuit has an independent wiring terminal. It can be understood that the controllable load circuit is used to connect to the power output port of the load metering board 112 and receive signal instructions from the control board.
[0077] The first signal terminal 1182 is located on the load metering board 112 to facilitate the insertion and removal of the signal line 1104, and is connected to the second signal terminal 1184 of the charging gun assembly 108 through the signal line 1104 to transmit control signals and status information.
[0078] It should be emphasized that in the present solution, a control board is provided in the box 102, which can manage the switch state of the load circuit and adjust the system operation according to the external signal, by connecting the signal line 1104 to the load metering board 112 and the first signal terminal 1182, and connecting the second signal terminal 1184 of the charging gun assembly 108 to the first signal terminal 1182 through the signal line 1104, ensuring that after the power line 1102 and the signal terminal are successfully connected, the control board can effectively monitor or control the charging gun assembly 108, thereby realizing the expansion of functions.
[0079] When the first signal terminal 1182 and the second signal terminal 1184 are connected, the control board and the charging gun assembly 108 will exchange signals through the signal line 1104 to achieve control. In addition, the charging confirmation between the control board and the charging gun assembly 108 can also be achieved through the signal line 1104. It can be understood that the charging confirmation includes but is not limited to the handshake protocol transmission confirmation before the AC power module or the oil engine module of the smart distribution box 100 supplies power to the charging gun assembly 108 so that it can charge the connected electric vehicle, and the electric vehicle reverse power supply, such as the handshake protocol transmission confirmation before the power in the electric vehicle is transmitted to the smart distribution box 100 through the charging gun assembly 108 and then transmitted to the power grid or household equipment.
[0080] In a specific embodiment, the number of signal lines 1104 includes two, and the two signal lines 1104 are respectively provided at first signal terminals 1182 set on the load metering board 112. When the two first signal terminals 1182 are respectively connected to the corresponding second signal terminals 1184, one of the signal lines 1104 performs signal exchange and the other signal line 1104 performs charging confirmation.
[0081] In addition, a single signal line 1104 only involves one function, which reduces the possibility of failure. Even if a failure occurs, the corresponding line can be replaced by determining the specific failed signal line 1104, thereby reducing the replacement cost.
[0082] The intelligent distribution box 100 includes a box body 102, a load metering board 112 and a control board 106. A charging gun assembly cavity is provided in the box body. On this basis, the optional charging gun assembly 108 is installed in the charging gun assembly cavity, and the interface of the charging gun assembly is expanded, so that the controllable load of the intelligent distribution box 100 can be expanded according to different usage scenarios, that is, the use of the charging gun assembly is increased on the basis of the original installation of the intelligent distribution box. Specifically, the charging gun assembly 108 itself can be assembled on the box body 102, that is, it can be installed on the basis of the structure of the intelligent distribution box 100 itself. The load metering board 112 provides monitoring and metering of multiple controllable load circuits, records current, voltage and other parameters to achieve accurate power management, and can be connected to each load circuit through the power line 1102. The first signal terminal 1182 is used to connect to the second signal terminal 1184 of the charging gun assembly 108.
[0083] Among them, the controllable load circuit is integrated in Figure 2 and Figure 3 The load metering board 112 shown allows independent control of each connected load, such as turning the power on or off, adjusting the power supply, etc. Each circuit has an independent wiring terminal. It can be understood that the controllable load circuit is used to connect to the power output port of the load metering board 112 and receive signal instructions from the control board 106.
[0084] The first signal terminal 1182 is located on the load metering board 112 to facilitate the insertion and removal of the signal line 1104, and is connected to the second signal terminal 1184 of the charging gun assembly 108 through the signal line 1104 to transmit control signals and status information.
[0085] It should be emphasized that in the present solution, a control board 106 is provided in the box 102, which can manage the switch state of the load circuit and adjust the system operation according to the external signal, by connecting the signal line 1104 to the load metering board 112 and the first signal terminal 1182, and connecting the second signal terminal 1184 of the charging gun assembly 108 with the first signal terminal 1182 through the signal line 1104, ensuring that after the power line 1102 and the signal terminal are successfully connected, the control board 106 can effectively monitor or control the charging gun assembly 108, thereby realizing the expansion of the load function.
[0086] The monitoring of the charging gun assembly 108 includes but is not limited to voltage monitoring, current monitoring, etc.
[0087] In a specific embodiment, the charging gun assembly 108 is an optional accessory, so that the user can choose whether to equip the charging gun assembly 108 according to their actual needs, so that the smart distribution box 100 can better meet the diverse needs of different users. Some users may not need the charging function, while for users who have electric vehicle charging needs, they can choose to add this optional accessory, which improves the flexibility and customization of the smart distribution box 100.
[0088] In addition, since the charging gun assembly 108 is an optional component, the design of the smart distribution box 100 can be better compatible with different application scenarios and user needs. Even if the main function of the smart distribution box 100 is power distribution and management, its function can be expanded by adding the charging gun assembly 108 without affecting its basic power management function.
[0089] If the user does not select the charging gun assembly 108 in the early stage, but has charging needs in the later stage, the charging gun assembly 108 can be conveniently installed and integrated as an optional accessory to achieve system upgrades and modifications without replacing the entire smart distribution box 100.
[0090] In one embodiment, an opening 1022 is provided on the box body 102, specifically on the side wall, and the charging gun assembly 108 is defined to include a gun body 1082 and a charging cable 110. The opening 1022 provides a passage for the charging cable 110 of the charging gun assembly 108 to enter the box body 102, so that the charging cable 110 can be smoothly introduced from outside the box body 102 into the box body 102 to achieve connection with the internal components of the smart distribution box 100, while maintaining the integrity of the box body 102 and a certain degree of protection performance.
[0091] The gun body 1082 serves as an interface for user operation and is used to connect an electric vehicle for charging. The gun body 1082 is connected to a controllable load circuit and a signal terminal inside the box 102 via a charging line 110, so that the user can conveniently perform charging operations outside the box 102, thereby improving the convenience of use.
[0092] The charging line 110 includes a power line 1102 and a signal line 1104. The power line 1102 is used to transmit power and provide the electric energy required for charging the electric vehicle. One end of the power line 1102 is electrically connected to at least one controllable load circuit, realizing the power transmission from the intelligent distribution box 100 to the electric vehicle, ensuring the realization of the charging function. The signal line 1104 is used to transmit signals, used to control the charging process and transmit relevant information. The signal line 1104 and the power line 1102 are partially located outside the box 102, and partially pass through the opening 1022 of the side wall of the box 102 to enter the box 102. By providing a second signal terminal 1184 that is compatible with the first signal terminal 1182 at one end of the signal line 1104, which is used to connect the signal with the load metering board 112 in the intelligent distribution box 100, the control board 106 in the intelligent distribution box 100 can accurately control the charging process and realize intelligent charging management.
[0093] In a specific embodiment, the charging line 110 includes a live wire and a ground wire. The live wire serves as the main power supply line in the charging process to provide the required electrical energy for charging the electric vehicle. The voltage of the live wire is the main source of energy in the charging process. Generally, the voltage corresponding to a live wire is 120V. Of course, its voltage value is usually determined according to different charging standards (such as the common 220V in home charging piles).
[0094] By electrically connecting a live wire to a circuit breaker 1062 of a controllable load circuit, the on and off of the live wire can be controlled by the circuit breaker 1062, thereby realizing effective management of the live wire current during the charging process. When an abnormal situation such as overload or short circuit occurs, the circuit breaker 1062 can quickly cut off the live wire circuit to protect the safety of the entire charging system and prevent the occurrence of dangerous situations such as damage to electrical equipment and fire.
[0095] The ground wire provides safe grounding protection for the entire charging system and is specifically connected to the ground terminal of the entire intelligent distribution box. During the charging process, the ground wire can conduct the leakage current that may occur in the device to the ground, avoiding the risk of electric shock and ensuring the safety of users and equipment. Ensure that the metal shell and other parts of the charging device maintain the same potential as the ground to prevent static electricity accumulation and other factors that may affect the normal operation and safety of the equipment.
[0096] A well-grounded system helps improve the electromagnetic compatibility of the entire charging system and reduce the impact of electromagnetic interference on the charging device and surrounding electronic equipment.
[0097] The circuit breaker 1062 in the controllable load circuit serves as a circuit protection device and can monitor the current in the circuit. When the current in the circuit exceeds the rated current of the circuit breaker 1062 (for example, a short circuit or overload occurs during charging), the circuit breaker 1062 will automatically cut off the circuit to prevent the excessive current from damaging the wires, charging equipment and other electrical components in the circuit.
[0098] Under normal charging conditions, the circuit breaker 1062 is in a closed state, allowing current to pass through, ensuring the normal charging process.
[0099] Because it is located in the controllable load circuit, the action of the circuit breaker 1062 can be monitored by the control board 106 of the intelligent distribution box 100, thereby realizing functions such as monitoring the charging state and fault alarm. For example, when the circuit breaker 1062 cuts off the circuit due to a fault, the control board 106 can detect this situation and send corresponding fault prompt information to the user.
[0100] In another embodiment, the charging line 110 includes a first live wire, a second live wire and a ground wire, wherein the first live wire and the second live wire are electrically connected to the circuit breaker 1062 respectively, and the live wires serve as two power supply lines in the charging process, and each live wire is electrically connected to a circuit breaker 1062 of a controllable load circuit, and the current of the first live wire is managed through the control of the circuit breaker 1062. During normal charging, the circuit breaker 1062 is closed, and the current charges the electric vehicle or reversely charges through the first live wire and the second live wire; when an abnormal situation such as overload or short circuit occurs, the circuit breaker 1062 is disconnected to protect the circuit and equipment safety.
[0101] Generally, the voltage corresponding to a live wire is 120V. In this solution, it can be adapted to a 240V voltage scenario.
[0102] When the gun body 1082 of the charging gun assembly 108 is connected to the charging port of the electric vehicle, the control board 106 can start the charging process to ensure that electric energy is transmitted from the controllable load circuit of the smart distribution box 100 to the battery of the electric vehicle through the charging gun assembly 108, thereby realizing the charging function of the electric vehicle.
[0103] In addition, it can not only control the charging of electric vehicles, but also control the transmission of electric power from electric vehicles to the outside, which can meet the application needs of vehicle-to-grid (V2G) and help achieve optimal utilization of energy and balance of the power grid.
[0104] By controlling the direction of electric vehicle power transmission, a two-way flow of energy is achieved. When the grid demand is peak, electric vehicles can feed back power to the grid, playing a certain role in peak load regulation; when the grid demand is low, electric vehicles can be charged to achieve efficient use of energy.
[0105] The on-site installation process is as follows: remove the cover plate 104 and open the opening 1022 on the side wall of the box 102. Pass the charging gun line through the opening 1022 and connect the power line 1102 and the signal line 1104. The power line 1102 is connected to the circuit breaker 1062, and the signal line 1104 is connected to the load metering board 112. After the installation is completed, replace the cover plate 104 and fix it to ensure that the charging gun assembly 108 is firmly connected.
[0106] Optionally, the management and fixing functions of the charging cable 110 are further enhanced by the card slot 1142 and the clamp 1144. The card slot 1142 is arranged in the box body 102, corresponding to the opening 1022, to ensure that the charging cable 110 can pass smoothly, and provide a special area to place the charging cable 110 to prevent it from interfering with other electrical components. The clamp 1144 is detachably connected to the card slot 1142, and is used to fix the charging cable 110, ensuring that the charging cable 110 will not be loosened or pulled during use, and preventing the gun line from being pulled by external force and pulling the internal integral wiring.
[0107] It can be understood that the position of the card slot 1142 corresponds to the opening 1022 , so that the charging cable 110 can easily enter the box 102 through the opening 1022 and be well fixed and managed inside the box 102 .
[0108] The clamp 1144 is detachably connected to the clamping slot 1142 to fix the charging cable 110. The user can quickly install or remove the charging cable 110 as needed, which enhances flexibility.
[0109] The card slot 1142 is disposed in the box body 102 , near the opening 1022 , to ensure that the charging cable 110 can smoothly enter the card slot 1142 and be fixed after entering the box body 102 .
[0110] By fixing the charging cable 110 in the card slot 1142, interference between the charging cable 110 and other electrical components is avoided, and the risk of short circuit or poor contact is reduced.
[0111] Furthermore, the circuit breaker 1062 mainly includes a load circuit breaker 1064, wherein the load circuit breaker 1064 is used to control the power supply of each load inside the intelligent distribution box 100, and can cut off the current in time when a fault occurs to protect the load equipment.
[0112] One end of the power line 1102 is connected to the load breaker 1064, so that power can be introduced from the power source to the load inside the smart distribution box 100. The input module 1066 is connected to an external power source (such as the power grid) to ensure that power can flow into the smart distribution box 100 safely.
[0113] The load circuit breaker 1064 is usually connected to the control board 106 so that the control board 106 can control the on and off of the load as needed.
[0114] The input module 1066 is usually located at the front or top of the intelligent distribution box 100, which is convenient for users to operate and maintain, and ensures that the power line can be smoothly connected to the input module 1066. The load circuit breaker 1064 is generally arranged inside the intelligent distribution box 100, adjacent to the control board 106 and the load metering board 112, so as to achieve effective current control and monitoring.
[0115] By connecting the power line 1102 to the load circuit breaker 1064, the intelligent distribution box 100 can effectively manage and control the power supply to ensure the safe operation of each load.
[0116] The connection between the load circuit breaker 1064 and the control panel 106 enables the user to monitor the load status in real time through the intelligent control system and realize remote control, thereby improving the intelligence level of the intelligent distribution box 100.
[0117] The design of circuit breaker 1062 allows users to quickly locate the problem and perform maintenance or replacement when a fault occurs, reducing downtime and improving system reliability.
[0118] like Figure 5 As shown, by integrating the load circuit breaker 1064 and the input module 1066 into the intelligent distribution box 100, the solution realizes effective management and safety protection of electric energy, which not only improves the safety and reliability of the intelligent distribution box 100, but also provides users with a more flexible and intelligent power management solution. Overall, the intelligent distribution box 100 can meet the needs of charging the electric vehicle 204 and other loads, ensuring stable operation in various working environments.
[0119] In some embodiments, optionally, the input module 1066 and the load circuit breaker 1064 are arranged at intervals along the first direction of the box 102, and an input hole 1024 for the input cable 202 to pass through is provided on one side of the box 102, and the input module 1066 is arranged near the input hole 1024. The input cable 202 enters the intelligent distribution box 100 through the input hole 1024 and is connected to the input module 1066. The input module 1066 and the load circuit breaker 1064 are arranged at intervals in the first direction and are connected through internal circuits to achieve distribution and protection of electric energy.
[0120] The input hole 1024 is located on one side of the box 102, which is convenient for accessing the input cable 202. The input module 1066 is arranged close to the input hole 1024, so that the input cable 202 can be directly connected to the input module 1066, reducing the length and loss of the line. The load circuit breaker 1064 is arranged at a distance from the input module 1066 in the first direction, which is convenient for independent control and protection of each load.
[0121] By arranging the input module 1066 and the load circuit breaker 1064 in a first direction at intervals and arranging the input hole 1024 on one side of the box body 102, this design optimizes the structure and function of the intelligent distribution box 100. It provides a convenient cable access method, reduces line loss, realizes independent control and protection of each load, and improves the safety and reliability of the system. This design makes the intelligent distribution box 100 more convenient, efficient and safe in practical applications.
[0122] In some embodiments, a leakage protector 116 is optionally provided on the cover plate 104 for inspection and maintenance when necessary, and also for quick power cutoff when leakage occurs. In addition, since the power line 1102 passes through the leakage protector 116, the leakage protector 116 is used to detect leakage in the circuit, and can quickly cut off the power supply when leakage occurs to protect the safety of personnel and equipment. The power line 1102 passes through the leakage protector 116, so that the leakage protector 116 can monitor the current in the power line 1102 in real time.
[0123] It is understood that the leakage protector 116 can detect and handle leakage problems in time to ensure the safe operation of the electrical system. When it is detected that the leakage current exceeds the set value, the leakage protector 116 will quickly cut off the power supply to avoid electric shock to personnel and damage to equipment.
[0124] Optionally, the charging cable 110 includes two power lines 1102 for transmitting electric energy. Each power line 1102 passes through a leakage protector 116 for detecting and protecting leakage, and one end of each power line 1102 is connected to a circuit breaker 1062 for controlling the on and off of the power line 1102.
[0125] Each power line 1102 passes through a corresponding leakage protector 116, so that the leakage protector 116 can monitor the leakage condition on the power line 1102. One end of each power line 1102 is connected to a circuit breaker 1062, and the on and off of the power line 1102 is controlled by the switch of the circuit breaker 1062.
[0126] The leakage protector 116 is located between the charging line 110 and the circuit breaker 1062 , close to the input end of the charging line 110 , and the circuit breaker 1062 is located at the output end of the leakage protector 116 , connected to the load.
[0127] Each power line 1102 has an independent leakage protector 116, which can detect leakage in time and cut off the power supply, improve the safety of the charging process, provide multiple protection mechanisms, and ensure the safety and reliability of the charging process. The leakage protector 116 can detect leakage in time, and the circuit breaker 1062 can control the on and off of the power line 1102 and provide overload protection, which improves the safety and flexibility of the intelligent distribution box 100. At the same time, this design also facilitates the management and maintenance of the charging process to meet the needs of different users.
[0128] like Figure 6 As shown, the present application provides an embodiment of a power distribution system 200, which includes an intelligent distribution box 100 and an input cable 202. The intelligent distribution box 100 has multiple functions, such as controlling the on and off of the load, realizing reverse charging of the vehicle charger, and measuring the load. The input cable 202 is connected to the circuit breaker 1062 of the intelligent distribution box 100 to introduce the power of the external power supply into the intelligent distribution box 100. This connection method ensures the input and distribution of power and provides a stable power supply for the system.
[0129] When the electric car 204 is connected to the charging gun assembly 108 of the intelligent distribution box 100 and the power of the power battery in the electric car 204 needs to be transmitted to the power grid, the reverse charging function of the car charger is realized. This helps to balance the load of the power grid and improve energy utilization efficiency, and also provides a possible way for car owners to make money.
[0130] On the other hand, when the electric car 204 needs to be charged, the charging gun assembly 108 transmits the power of the input cable 202 to the power battery of the electric car 204 to meet the driving needs of the vehicle.
[0131] The charging gun assembly 108 has the ability to transmit electric energy in both directions, and can feed the electric energy of the electric vehicle 204 back to the power grid, and can also charge the electric vehicle 204 from the power grid. This function makes the charging gun assembly 108 a key device for connecting the electric vehicle 204 and the power grid. According to actual needs, the charging gun assembly 108 can flexibly switch between the two modes of energy feedback and energy replenishment to meet different usage scenarios and needs.
[0132] In the event of a power outage or other emergency, the electric vehicle 204 can serve as a backup power source, transmitting power from the power storage battery to the power load through the charging gun assembly 108, thereby providing temporary power support for key equipment or electrical appliances.
[0133] The mobility of the electric car 204 enables it to become a mobile power supply station. For example, in places without fixed power sources such as outdoor activities, camping or construction sites, the electric car 204 can supply power to various electrical devices through the charging gun assembly 108.
[0134] When the battery of the electric vehicle 204 has surplus power, it can be used to meet the needs of other power loads instead of just feeding the power back to the power grid, which can make fuller use of the energy of the electric vehicle 204 and improve the overall energy utilization efficiency.
[0135] In some cases, by directly using the electricity of the electric vehicle 204 to supply power to the electrical load, the dependence on the power grid can be reduced and the load pressure on the power grid can be reduced.
[0136] In a specific embodiment, a smart distribution box is provided that supports users to quickly install charging gun modules on site. Its hardware is compatible with the functions of the smart distribution box and can also realize reverse charging of the car charger. When the user wants to install a charging module, the function can also be added quickly. The smart distribution box includes: a control module, a chassis (ie, a box body), a standard 8-way controllable load & mains diesel engine input (ie, a control panel), an optional 12-way controllable load module, an inner door panel of the smart distribution box, and a cover of the smart distribution box.
[0137] The 4-way controllable load metering board is installed at the standard 8-way controllable load & mains diesel generator input. Its functions include: intelligent on / off of controllable loads and reverse charging of AC charging piles. In the case of no charging gun, its function is to control the on / off of the controllable load; when the charging gun needs to be connected, the two boards need to be connected with a signal line. Its function is to control the signal of the charging gun through software signal control, with the charging pile connected, and then connected to the charging gun signal line to realize the signal access of the charging gun.
[0138] According to the intelligent distribution box and power distribution system provided by the present invention, a modular design is utilized, and users can quickly assemble and add functions, thereby realizing the functions of electric vehicle charging and reverse charging, and having intelligent management of loads.
[0139] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0140] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.
[0141] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0142] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An intelligent distribution box, characterized in that: include: Box; A charging gun assembly cavity is provided in the box body, and the charging gun assembly cavity is used to accommodate the charging gun assembly when the intelligent distribution box expands the charging gun function of the electric vehicle; A load metering board is disposed in the box, the load metering board includes a plurality of controllable load circuits, and a first signal terminal is disposed on the load metering board, the first signal terminal is used to adapt to the second signal terminal of the charging gun assembly; A control board is arranged in the box, and is used to monitor or control the multiple controllable load circuits. The control board is also used to monitor or control the charging gun assembly after the first signal terminal is connected to the second signal terminal and the power line of the charging gun assembly is connected to at least one of the controllable load circuits.
2. The intelligent distribution box according to claim 1, characterized in that: The charging gun assembly is an optional accessory.
3. The intelligent distribution box according to claim 1, characterized in that: The side wall of the box body is provided with an opening; The charging gun assembly includes a connected gun body and a charging cable, the gun body is arranged outside the box, the charging cable includes at least one power line and at least one signal line, part of the charging cable passes through the opening and extends into the box, one end of the power line is used to be electrically connected to at least one controllable load circuit; one end of the signal line is provided with the second signal terminal adapted to the first signal terminal.
4. The intelligent distribution box according to claim 3, characterized in that: The charging line includes two power lines, and the two power lines include a live line and a ground line; The controllable load circuit includes a circuit breaker, the live wire is electrically connected to the circuit breaker of one of the controllable load circuits, and the ground wire is electrically connected to the grounding terminal of the intelligent distribution box.
5. The intelligent distribution box according to claim 3, characterized in that: The charging line includes three power lines, and the three power lines include a first live line, a second live line and a ground line; The controllable load circuit includes a circuit breaker, the first live wire and the second live wire are electrically connected to the circuit breakers corresponding to the two controllable load circuits respectively, and the ground wire is electrically connected to the grounding terminal of the intelligent distribution box.
6. The intelligent distribution box according to claim 3, characterized in that: The at least one signal line is used for signal exchange and charging confirmation between the control board and the charging gun assembly after the first signal terminal and the second signal terminal are connected.
7. The intelligent distribution box according to claim 6, characterized in that: The at least one signal line includes two signal lines, and two first signal terminals are provided on the corresponding load metering board. The corresponding two signal lines are respectively connected to two second signal terminals. After the two first signal terminals are connected to the two second signal terminals, one of the signal lines is used for signal exchange between the control board and the charging gun, and the other signal line is used for charging confirmation.
8. The intelligent distribution box according to claim 1, characterized in that: The charging gun assembly is used to be connected to an electric vehicle. After the gun body of the charging gun assembly is connected to the charging port of the electric vehicle, the control panel is used to monitor or control the charging gun assembly to charge the electric vehicle, or monitor or control the transmission of power of the electric vehicle to the intelligent distribution box.
9. The intelligent distribution box according to claim 3, characterized in that: Also includes: A card slot is provided in the box body, and the card slot is provided corresponding to the opening; A clamp is detachably connected to the clamp slot, and the clamp is connected to the clamp slot to fix the charging cable.
10. The intelligent distribution box according to claim 3 or 4, characterized in that: The controllable load circuit includes a load circuit breaker, and one end of the power line is connected to the load circuit breaker.
11. The intelligent distribution box according to claim 10, characterized in that: Also includes: An input module, wherein the input module and the load circuit breaker are spaced apart along a first direction of the box body, an input hole for the input cable to pass through is provided on one side of the box body in the first direction, and the input module is arranged close to the input hole.
12. The intelligent distribution box according to claim 3, characterized in that: Also includes: A cover plate is detachably connected to the side wall, and the cover plate is connected to the side wall to cover the opening.
13. The intelligent distribution box according to claim 12, characterized in that: Also includes: A leakage protector is arranged on the cover plate, and the charging line passes through the leakage protector.
