Intelligent distribution box

Abstract

The embodiment of the utility model provides an intelligent distribution box. The intelligent distribution box comprises a box body; the load metering plate is arranged in the box body, and a relay is arranged on the load metering plate; one end of the circuit breaker is connected with the current transformer, and the other end of the circuit breaker is used for being connected with a controllable load; and the current transformer is arranged at a connecting part between the relay and the circuit breaker, and the current transformer is used for collecting electrical parameters at the connecting part. In the technical scheme of the utility model, the current transformer is arranged between the circuit breaker and the relay which are used for connecting the controllable load, so that the real-time monitoring and protection of each load in the power system can be realized, the accurate control of the load is ensured, and the current load can be monitored in real time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of intelligent distribution box, specifically, an intelligent distribution box. BACKGROUND

[0002] At present, with the addition of new energy, the functional requirements of users on distribution boxes also increase, and the traditional distribution box only has the switching control function and cannot realize real-time monitoring and remote control on the running state of the power equipment. In the related art, the traditional distribution box only sets the current transformer between the disconnecting switch and the leakage protector, and cannot realize the current detection on the specific load path. SUMMARY

[0003] In order to solve or improve the above-mentioned technical problem of being unable to detect the current of the load path, one purpose of the utility model is to provide an intelligent distribution box.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an intelligent distribution box, which comprises a box body, a load metering board arranged in the box body, a plurality of load metering components on the load metering board, the plurality of load metering components being used for monitoring or controlling a plurality of controllable loads, the plurality of load metering components being connected with the plurality of controllable loads, each load metering component comprising a relay fixed on the load metering board, a circuit breaker connected with the current transformer at one end and used for connecting the controllable load at the other end, and a current transformer arranged in the connecting part between the relay and the circuit breaker and used for collecting the electrical parameters at the connecting part.

[0005] According to the intelligent distribution box provided by the application, the box body, the load metering board, the circuit breaker and the current transformer can realize real-time monitoring and protection on each load in the power system, ensure accurate control on the load, can monitor the current load in real time, and even can automatically disconnect the circuit when the current is abnormal, so as to prevent electrical faults or catastrophic accidents.

[0006] Specifically, the box body is the physical structure container of the intelligent distribution box, and all electrical elements are installed inside, including the load metering board, the relay, the circuit breaker and the current transformer, to form an overall electrical protection and management unit. Among them, the load metering board is responsible for monitoring and displaying the electrical parameters such as current and voltage of the load, can obtain the power consumption data of the load in real time, and cooperates with other components (such as the relay, the current transformer, etc.), the load metering board includes a plurality of load metering components connected with the controllable load, so that the load metering components can monitor or control a plurality of controllable loads, specifically, the load metering component includes the relay, the circuit breaker and the current transformer, and can control the opening and closing of the circuit through data monitoring and processing.

[0007] The relay is mainly used for automatic control of the circuit. When the load current or electrical parameter is abnormal, the relay realizes automatic switching or disconnection of the circuit by receiving instructions from the load metering board, preventing equipment damage or electrical fire. Among them, the relay is integrated on the load metering board, and the relay is fixed on the load metering board, which simplifies the circuit design. At the same time, the relay can be directly connected with the current transformer and the circuit breaker, which is convenient for intelligent control instruction transmission. The current transformer is located between the relay and the circuit breaker. The current transformer can accurately collect current data flowing through the component and ensure real-time monitoring and data transmission of the current, so that the relay can make a quick decision based on real-time current data to automatically cut off the circuit or start the protection mechanism.

[0008] In addition, a circuit breaker is also provided downstream of the current transformer, which is connected with the load circuit to ensure that the load circuit can be quickly disconnected once abnormal current is found. Through accurate monitoring of the current transformer, the circuit breaker can automatically disconnect when the current is overloaded or abnormal, ensuring the safe operation of the system.

[0009] In some technical solutions, optionally, the connection part comprises a connection copper bar, one end of the connection copper bar is electrically connected with the circuit breaker, the other end of the connection copper bar is electrically connected with the relay, and the connection copper bar passes through the current transformer.

[0010] The connection part is in the form of a copper bar, specifically a connection copper bar, which serves as an intermediate component between the relay, the circuit breaker and the current transformer, and undertakes the function of current conduction, while also realizing electrical connection between the components.

[0011] One end of the connection copper bar is connected with the circuit breaker, which means that the copper bar is directly involved in the transmission of the load current. Through the connection copper bar, the load current flows through the copper bar and is finally conducted to the circuit breaker. The other end of the connection copper bar is connected with the relay, which enables the relay to perceive the current state flowing through the copper bar. The relay decides whether to start the circuit breaker to disconnect the current according to the current data.

[0012] The current transformer is arranged at a middle position of the connection copper bar, i.e. the copper bar passes through the current transformer. The current transformer can monitor the current flowing through the connection copper bar to obtain real-time current data.

[0013] In some technical solutions, optionally, it further comprises a support structure, the support structure is provided with a plurality of mounting slots, each mounting slot is used for accommodating the current transformer of at least one load metering component.

[0014] The current transformers in the plurality of load metering components for connecting controllable loads are centrally arranged by setting the support structure, and are specifically arranged in the mounting slots of the support structure, so that the installation of the current transformers is more stable, and the plurality of current transformers are more compact in the centralized manner, which is beneficial to the improvement of the detection accuracy of the current transformers.

[0015] It can be understood that the current transformers are fixed by the support structure, and the support structure can limit the current transformers to a certain extent.

[0016] In some technical solutions, the load metering board comprises: two plate bodies arranged at intervals, at least one relay is arranged on each plate body, and the relay is arranged on the side of the plate body facing the other plate body; wherein the support structure is arranged between the two plate bodies.

[0017] The load metering board comprises two plate bodies arranged at intervals, and at least one relay is arranged on each plate body, and the support structure is arranged between the two plate bodies. The design of the load metering board distributes a plurality of relays on the two plate bodies, and realizes intelligent monitoring, measurement and automatic control of load current in combination with the function of the current transformer.

[0018] By arranging two plate bodies and arranging the two plate bodies at intervals, on the one hand, the number of connected controllable loads can be expanded, and the controllable loads can be connected to any plate body, and on the other hand, the interval is helpful for reasonable arrangement of electrical elements. The arrangement of the two plate bodies enables each relay to be independently arranged on a plate body, thereby effectively separating different control units.

[0019] The relay is arranged on the side of the plate body facing the other plate body, i.e. arranged near the middle of the two adjacent and spaced plate bodies, which optimizes the space layout and also optimizes the transmission path of the current monitoring and control signal.

[0020] The support structure for accommodating a plurality of current transformers is arranged between the two plate bodies, and the plurality of current transformers are arranged in a centralized manner. When the current transformer detects current abnormalities, the current transformer transmits corresponding signals to the relay, and the relay automatically controls the switch of the circuit breaker according to the data to disconnect the circuit or start other protection measures.

[0021] In some technical solutions, the load metering board further comprises: a main copper bar arranged on one side of the load metering board, and the main copper bar is electrically connected with the at least one relay.

[0022] By arranging the main copper bar on one side of the load metering board, the copper bar has a large cross-sectional area to carry a large current. The main copper bar is arranged on one side of the load metering board, so that one or more relays arranged on the load metering board can be directly connected to the main copper bar to establish electrical connection.

[0023] The main copper bar is electrically connected with the relay to realize the transmission of current. The relay plays a role of controlling the on-off of the circuit in the circuit, and the main copper bar provides the relay with current input from the power supply or other circuit parts. For example, when the distribution box supplies power to multiple loads, the main copper bar conducts the current of the power supply to the relay, and then the relay distributes the current to the corresponding load circuit according to the demand of the load and the control logic.

[0024] In some technical solutions, optionally, at least one sub-copper bar is included, one end of the sub-copper bar is connected with the main copper bar, and the other end of the sub-copper bar is connected to the relay.

[0025] One end of the sub-copper bar is connected with the main copper bar, which makes the sub-copper bar an extension of the current transmission path of the main copper bar. The main copper bar serves as the main distribution hub of the current in the distribution box, conducts the current to the sub-copper bar, and thus realizes the further subdivision and distribution of the current. The other end of the sub-copper bar is connected to the relay, so that the current can be accurately transmitted from the main copper bar to the relay through the sub-copper bar, providing the relay with the required current for operation, and thus enabling the relay to perform on-off operation on the circuit according to the control logic.

[0026] In some technical solutions, a terminal box is arranged in the box body, and the load metering plate, the circuit breaker and the current transformer are arranged in the terminal box.

[0027] The terminal box is arranged in the box body, providing a relatively independent and protected installation space for the load metering plate, the circuit breaker and the current transformer. When troubleshooting or maintenance is performed, the staff can quickly locate the relevant elements, improving the work efficiency.

[0028] It can be understood that, by arranging the terminal box, the structure in the terminal box can be regarded as a modular structure, and the fixing and wiring structure in the terminal box helps to realize the neat arrangement of the lines, avoiding the confusion and intersection of the lines.

[0029] In some technical solutions, the terminal box includes a box body, a mounting opening is arranged on one side of the box body, and a wiring cover plate is detachably connected with the mounting opening; wherein the box body and the wiring cover plate are connected to form a containing cavity for containing the load metering plate.

[0030] The terminal box includes a box body and a wiring cover plate. The box body, as the main part of the terminal box, is a container with a certain shape and space, which is usually made of insulating materials such as plastic. The internal space is used to contain electrical elements such as the load metering plate, the circuit breaker and the current transformer, and the shape and size of the box body are designed to meet the requirements of installation, wiring and heat dissipation of these elements.

[0031] Meanwhile, the internal structure of the box body can guide the layout of the wires, which helps to realize the standardization and neatness of the wiring and improve the safety and reliability of the electrical system.

[0032] The mounting port is provided on one side of the box body and is an open structure. The size and shape thereof are determined according to the size and mounting mode of the load metering plate and other related elements to be mounted. The edge of the mounting port can be specially treated, such as being provided with a clamping groove or a threaded hole, to facilitate the connection with the wiring cover plate.

[0033] In some embodiments, the wiring cover plate is provided with an opening, and part of the circuit breaker extends out of the wiring cover plate through the opening.

[0034] The opening on the wiring cover plate is designed according to the shape and size of the circuit breaker to ensure that the circuit breaker can smoothly pass through. The position of the opening is set on the wiring cover plate at a position corresponding to the circuit breaker, so that the circuit breaker can accurately pass through the opening and extend out.

[0035] Part of the circuit breaker extends out of the wiring cover plate through the opening, so that the operator can directly operate the extended circuit breaker, such as manually closing and opening, without opening the wiring cover plate, thereby improving the convenience of operation, reducing the trouble of frequently opening the wiring cover plate, and also reducing the impact on the internal environment of the wiring box caused by operation.

[0036] In some embodiments, the controllable load includes two power lines, including a live wire and a ground wire, the live wire being connected to the other end of the circuit breaker, and the ground wire being grounded.

[0037] The controllable load includes a live wire and a ground wire. The live wire serves as the main power supply line during charging and provides the required power for charging the electric vehicle. The voltage of the live wire is the main source of energy during charging. In some power supply scenarios, the voltage corresponding to one live wire is 120V. However, the voltage value is usually determined according to different charging standards, such as 220V for common household charging piles.

[0038] The controllable load is connected through two power lines, including a live wire and a ground wire. The live wire serves as the live line in the power line and transmits the power from the circuit breaker to the controllable load. In the connection between the distribution box and the controllable load, the live wire is connected to the other end of the circuit breaker, and the circuit breaker controls the current in the live wire. When the circuit is normal, the current is allowed to flow through the live wire to the load, so that the load works normally, such as providing power for various electrical equipment, driving the motor to operate, and lighting the lamps.

[0039] When the current in the live wire exceeds the rated current of the circuit breaker (overload condition) or the live wire is accidentally short-circuited with the neutral or ground wire (short-circuit condition), the circuit breaker can quickly cut off the connection of the live wire, thereby protecting the safety of the load, the line, and the entire electrical system.

[0040] In addition, the ground wire is a line dedicated for safety protection, which is directly grounded, and one end of the ground wire is connected to the controllable load, and the other end is connected to the ground.

[0041] The main function of the ground wire is to provide a safe discharge path for the current when there is a leakage in the electrical equipment. When a fault occurs inside the controllable load, causing the shell to be electrified, the current will flow into the ground through the ground wire instead of through the human body, thereby avoiding the occurrence of electric shock accidents.

[0042] In some embodiments, the controllable load includes three power lines, including a first live wire, a second live wire, and a ground wire. The first live wire and the second live wire are respectively electrically connected to two adjacent circuit breakers, and the ground wire is grounded.

[0043] The controllable load includes a first live wire, a second live wire, and a ground wire. The first live wire and the second live wire are respectively electrically connected to a circuit breaker. The live wire serves as two power supply lines, each of which is connected to a circuit breaker. Through the control of the circuit breaker, the current of the first live wire is managed. In normal power supply, the circuit breaker is closed, and the current flows through the first live wire and the second live wire to charge or reverse charge the electric vehicle. When an abnormal condition such as overload or short circuit occurs, the circuit breaker is opened to protect the circuit and the equipment.

[0044] Generally, one live wire corresponds to a voltage of 120V. In this embodiment, it is suitable for a voltage scenario of 240V.

[0045] The first live wire and the second live wire are respectively electrically connected to two adjacent circuit breakers, so that each circuit breaker can independently control the on-off of one live wire.

[0046] When the controllable load encounters an overload or short-circuit condition during operation, the corresponding circuit breaker can quickly detect abnormal current and automatically cut off the connection with the live wire, thereby protecting the controllable load, power lines, and other related equipment from damage. For example, if a short circuit occurs in the load on the first live wire, the circuit breaker connected to the first live wire will immediately trip to prevent excessive current from damaging the entire circuit system.

[0047] The additional aspects and advantages of the technical solution of the present application will become apparent in the following description or can be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1A structure schematic view of the intelligent distribution box is shown according to one embodiment of the utility model;

[0049] Figure 2 A structure schematic view of the intelligent distribution box is shown according to one embodiment of the utility model;

[0050] Figure 3 A structure schematic view of the junction box is shown according to one embodiment of the utility model;

[0051] Figure 4 A structure schematic view of the junction box is shown according to one embodiment of the utility model;

[0052] Figure 5 A structure schematic view of the main copper bar and the sub copper bar is shown according to one embodiment of the utility model;

[0053] Figure 6 A structure schematic view of the junction cover plate is shown according to one embodiment of the utility model;

[0054] Figure 7 A structure schematic view of the junction box is shown according to one embodiment of the utility model.

[0055] Wherein, Figures 1 to 7 The correspondence between the reference signs and the component names is as follows:

[0056] 100: intelligent distribution box; 102: box body; 103: load metering assembly; 104: load metering plate; 1042: plate body; 105: relay; 106: circuit breaker; 108: current transformer; 110: connecting part; 1102: connecting copper bar; 112: main copper bar; 114: sub copper bar; 116: junction box; 1162: box body; 1164: mounting port; 1166: junction cover plate; 1168: opening; 118: containing cavity; 120: controllable load; 122: power line; 124: support structure; 1242: mounting groove. DETAILED DESCRIPTION

[0057] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the utility model, the embodiments of the utility model are further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other without conflict.

[0058] In the following description, many specific details are set forth in order to provide a thorough understanding of the application, however, embodiments of the application can also be practiced in other ways different from those described herein, therefore, the protection scope of the application is not limited to the specific embodiments disclosed below.

[0059] Reference will now be made to Figures 1 to 7 The intelligent distribution box provided according to some embodiments of the present application is described.

[0060] As shown in Figure 1 and Figure 4 The present embodiment provides an intelligent distribution box 100, which includes a box body 102, a load metering board 104, a circuit breaker 106 and a current transformer 108, can realize real-time monitoring and protection of each load in the power system, ensures accurate control of the load, can monitor the current load in real time, and even can automatically disconnect the circuit when the current is abnormal, preventing electrical failure or catastrophic accidents.

[0061] Specifically, the box body 102 is a physical structure container of the intelligent distribution box 100, and all electrical elements are installed inside, including the load metering board 104, the relay 105, the circuit breaker 106 and the current transformer 108, forming an overall electrical protection and management unit. Among them, the load metering board 104 is responsible for monitoring and displaying electrical parameters such as current and voltage of the load, can obtain power consumption data of the load in real time, and cooperates with other components (such as the relay 105, the current transformer 108, etc.), the load metering board 104 includes a plurality of load metering components 103 for connecting to controllable loads, so that the load metering components 103 can monitor or control a plurality of controllable loads. Specifically, the load metering component 103 includes the relay 105, the circuit breaker 106 and the current transformer 108, which can control the opening and closing of the circuit through data monitoring and processing.

[0062] The relay 105 is mainly used for automatic control of the circuit, and when the load current or electrical parameter is abnormal, the relay 105 realizes automatic switching or disconnection of the circuit by receiving instructions from the load metering board 104, preventing equipment damage or electrical fire. Among them, the relay 105 is integrated on the load metering board 104, and the relay is fixed on the load metering board, which simplifies the circuit design, and at the same time the relay 105 can be directly connected with the current transformer 108 and the circuit breaker 106, facilitating the transmission of intelligent control instructions. The current transformer 108 is located at the connection part 110 between the relay 105 and the circuit breaker 106, and the current transformer 108 can accurately collect current data flowing through the part, and ensure real-time monitoring and data transmission of the current, so that the relay 105 can make a quick decision based on real-time current data, automatically cut off the circuit or start the protection mechanism.

[0063] In addition, the circuit breaker 106 is also provided downstream of the current transformer 108, which is connected with the load circuit, so that once abnormal current is found, the load circuit can be quickly disconnected. Through accurate monitoring of the current transformer 108, the circuit breaker 106 can automatically disconnect when the current is overloaded or abnormal, ensuring safe operation of the system.

[0064] The relay 105 is connected with the current transformer 108 through the load metering board 104, forming a control feedback loop. The current transformer 108 detects the current and feeds back to the load metering board 104, which controls the switch of the circuit through the relay 105. When the current is abnormal, the relay 105 quickly responds and makes the decision to disconnect the circuit according to the change of the current data. In addition, the relay 105 is connected with the circuit breaker 106, which can be regarded as the automatic control part of the “switch”. When the relay 105 receives the instruction (such as overload, current anomaly, etc.) from the load metering board 104, it will automatically trigger the circuit breaker 106 to disconnect the circuit.

[0065] The current transformer 108 is arranged on the connecting part 110 between the relay 105 and the circuit breaker 106, and monitors the current flowing through the connecting part 110. After collecting data, it is transmitted to the load metering board 104. If the current of the load circuit is abnormal after being detected by the current transformer 108, the circuit breaker 106 will cut off the current according to the control action of the relay 105 to prevent the fault from further expanding.

[0066] In some embodiments, as shown in Figure 7 a support structure 124 is arranged to centrally place the current transformers 108 in the plurality of load metering components for connecting controllable loads, specifically in the mounting groove 1242 of the support structure 124 as shown in Figure 5 Thus, the installation of the current transformers 108 is more stable, and the plurality of current transformers 108 is more compact through the centralized manner, which is conducive to the improvement of the detection accuracy of the current transformers 108.

[0067] It can be understood that the current transformers 108 are fixed through the support structure 124, and the support structure 124 can limit the current transformers 108 to a certain extent.

[0068] In some embodiments, as shown in Figure 3 The connecting part 110 is in the form of a copper bar, specifically a connecting copper bar 1102, which serves as an intermediate component between the relay 105, the circuit breaker 106 and the current transformer 108, undertakes the conduction of the current, and also realizes the electrical connection between the components.

[0069] One end of the connecting copper bar 1102 is connected with the circuit breaker 106, which means that the copper bar directly participates in the transmission of the load current. Through the connecting copper bar 1102, the load current flows through the copper bar and is finally conducted to the circuit breaker 106. The other end of the connecting copper bar 1102 is connected with the relay 105, which enables the relay 105 to perceive the current state flowing through the copper bar according to the current data. The relay 105 decides whether to start the circuit breaker 106 to disconnect the current according to the current data.

[0070] The current transformer 108 is arranged at a middle position of the connection copper bar 1102, i.e., the copper bar passes through the current transformer 108, and the current transformer 108 can monitor the current passing through the connection copper bar 1102 to obtain real-time current data.

[0071] When the current passes through the connection copper bar 1102, the current transformer 108 can sense the change of the current and generate a corresponding signal according to the size, fluctuation, etc. of the current value to feed back to the load metering panel 104 or the relay 105, so as to provide a basis for the system to determine whether to disconnect the circuit.

[0072] In addition, by integrating the connection copper bar 1102 and the current transformer 108 together, the wiring design of the circuit can be effectively simplified, and the layout of the entire power distribution system is more compact and efficient. This design helps to reduce redundant wiring, reduce costs, and improve system reliability.

[0073] The direct connection of the current transformer 108 with the copper bar ensures accurate collection of load current, and the copper bar provides a clear current path, enabling the current transformer 108 to efficiently perform current sensing. At the same time, the relay 105 can respond quickly based on these data, optimizing the intelligent control effect of the distribution box.

[0074] In summary, by designing the connection copper bar 1102 as a bridge between the current transformer 108 and the relay 105 and the circuit breaker 106, the system achieves efficient, simple, and intelligent effects in electrical monitoring, control, and protection. The copper bar not only conducts current but also carries current data collection and automatic control functions, enabling the intelligent distribution box 100 to respond in time and perform automatic protection when current anomalies occur, thereby ensuring the safety and stability of the electrical system.

[0075] In some embodiments, optionally, the load metering panel 104 includes two spaced apart panel bodies 1042, and at least one relay 105 is installed on each panel body 1042, and the current transformer 108 is placed between the two panel bodies 1042. The design of the load metering panel 104 distributes multiple relays 105 on two panel bodies 1042, combined with the function of the current transformer 108, to achieve intelligent monitoring, measurement, and automatic control of load current.

[0076] By arranging two panel bodies 1042 and spacing them apart, on the one hand, the number of connected controllable loads can be expanded, and the controllable loads can be connected to any panel body 1042, and on the other hand, the spacing helps to arrange electrical components reasonably. The arrangement of the two panel bodies 1042 enables each relay 105 to be independently arranged on a panel body 1042, thereby effectively separating different control units.

[0077] The relay 105 is installed on the side of the plate body 1042 facing the other plate body 1042, i.e., arranged at the middle part of the two adjacent and spaced plate bodies 1042, which optimizes the space layout and the transmission path of the current monitoring and control signal.

[0078] The current transformer 108 is located between the two plate bodies 1042, and multiple current transformers 108 are arranged in a concentrated manner. When the current transformer 108 detects current anomalies, the current transformer 108 transmits corresponding signals to the relay 105, and the relay 105 automatically controls the switch of the circuit breaker 106 according to these data to disconnect the circuit or start other protection measures.

[0079] Each relay 105 controls one circuit breaker 106, and the relay 105 determines whether to trigger the circuit breaker 106 to act according to the current data fed back by the current transformer 108 to automatically cut off the circuit. When the load current is normal, the relay 105 keeps the circuit closed; once overload or other abnormalities occur, the relay 105 controls the circuit breaker 106 to disconnect the circuit to prevent accidents.

[0080] The design of two independent plate bodies 1042 makes the load metering plate 104 have better modularity, facilitating maintenance and upgrading. Each plate body 1042 can independently adjust the number and position of relays 105 and current transformers 108 according to demand, improving the flexibility and scalability of the system.

[0081] The current transformer 108 is placed between the two plate bodies 1042, so that it can more accurately monitor the current state flowing through the copper bar. The relay 105 can make faster and more accurate control decisions by obtaining current data in a timely manner, improving the response speed and safety of the entire system.

[0082] In some embodiments, optionally, a main copper bar 112 is arranged on one side of the load metering plate 104, and the copper bar has a large cross-sectional area to carry a large current. The main copper bar 112 is located on one side of the load metering plate 104, so that one or more relays 105 arranged on the load metering plate 104 can be directly connected to the main copper bar 112 to establish an electrical connection.

[0083] The main copper bar 112 is electrically connected to the relay 105 to realize current transmission. The relay 105 plays a role in controlling the on-off of the circuit, and the main copper bar 112 provides current input from the power supply or other circuit parts for the relay 105. For example, when the distribution box supplies power to multiple loads, the main copper bar 112 conducts the current of the power supply to the relay 105, and the relay 105 distributes the current to the corresponding load circuit according to the demand of the load and the control logic.

[0084] In some complex control scenarios, the actions of the relay 105 can be influenced by multiple factors, including signals from other circuit elements. While the main copper bar 112 is primarily used for current transmission, it can also serve as an indirect medium for signal transmission due to its connection with the relay 105. For example, when there is an overall current fluctuation monitoring mechanism in the distribution box, changes in current on the main copper bar 112 can be perceived by other monitoring elements and affect the control logic of the relay 105 through the connection relationship with the relay 105.

[0085] It can be understood that in the actual use scenario of the intelligent distribution box 100, there will be multiple load branches, each of which is controlled by a corresponding relay 105. The main copper bar 112 is connected with at least one relay 105, so that it can distribute the input current to different load branches. This is like a traffic hub that directs "vehicles" (current) from the power source to different "roads" (load branches), ensuring that each load can obtain the required power supply.

[0086] When the currents generated by multiple loads need to be aggregated or fed back, the main copper bar 112 can also play an integrating role. For example, in some application scenarios with energy recovery or monitoring of total load current demand, the main copper bar 112 can integrate the current returned by each branch for unified monitoring and processing.

[0087] The main copper bar 112 is located on one side of the load metering panel 104 and is connected with the relay 105, which enables the load metering panel 104 to obtain current information on the main copper bar 112 through the relay 105. The load metering panel 104 can meter, monitor, etc. the current transmitted by the main copper bar 112, thereby accurately grasping the overall load situation of the distribution box. For example, the load metering panel 104 can determine whether there is an overload risk according to the current size and change on the main copper bar 112, and take appropriate protective measures through components such as the relay 105 and the circuit breaker 106.

[0088] Although the main copper bar 112 has no direct connection with the current transformer 108, through the intermediate link of the relay 105, there is an indirect cooperative relationship between them. Changes in current on the main copper bar 112 will be perceived by the relay 105, and the actions of the relay 105 are related to the current data collected by the current transformer 108. For example, when the current on the main copper bar 112 abnormally changes, the relay 105 may make appropriate control actions according to the monitoring results of the current transformer 108, such as triggering the circuit breaker 106 to disconnect the circuit, to protect the safety of the entire system.

[0089] In some embodiments, optionally, as Figure 5As shown, one end of the sub-copper bar 114 is connected to the main copper bar 112, which makes the sub-copper bar 114 an extension of the current transmission path of the main copper bar 112. The main copper bar 112 serves as the main current distribution hub in the distribution box, conducting current to the sub-copper bar 114, thereby achieving further subdivision and distribution of current. The other end of the sub-copper bar 114 is connected to the relay 105, enabling current to be accurately transmitted from the main copper bar 112 to the relay 105 through the sub-copper bar 114, providing the relay 105 with the current required for operation, and enabling the relay 105 to operate the circuit according to the control logic.

[0090] The sub-copper bar 114 plays a role in "relay" transmitting current between the main copper bar 112 and the relay 105. Due to the circuit layout and functional zoning in the distribution box, it may be inconvenient in terms of spatial layout or electrical performance to directly connect from the main copper bar 112 to each relay 105. The presence of the sub-copper bar 114 solves this problem, enabling the main copper bar 112 to accurately transmit current to each relay 105 as required by the design, ensuring that each relay 105 can obtain stable current supply, thereby ensuring that the relay 105 works normally and effectively controls the circuit.

[0091] In an intelligent distribution box 100, there may be multiple relays 105 for controlling different loads or load groups. The presence of the sub-copper bar 114 helps to more carefully distribute the current from the main copper bar 112. For example, the main copper bar 112 may receive total current from the power supply, while the sub-copper bar 114 can distribute appropriate shares of current to each relay 105 according to the load requirements of the different relays 105, just like a tree trunk (main copper bar 112) provides nutrients (current) to leaves (relays 105) through branches (sub-copper bars 114), achieving fine management of current.

[0092] The use of the sub-copper bar 114 increases the flexibility of the circuit layout of the distribution box. During design and installation, the direction and connection method of the sub-copper bar 114 can be flexibly adjusted according to the location, number of relays 105, and distribution of loads. This flexibility helps to optimize the use of space inside the distribution box and better adapts to different application scenarios and load configuration requirements.

[0093] When a relay 105 or its related circuit in the distribution box fails, the presence of the sub-copper bar 114 facilitates troubleshooting and maintenance. Since the sub-copper bar 114 explicitly connects the main copper bar 112 and the relay 105, maintenance personnel can more easily trace the current path and locate the fault point. Moreover, when replacing the relay 105 or adjusting the circuit, the connection method of the sub-copper bar 114 is relatively independent and does not cause excessive interference to the current transmission system of the entire distribution box, thereby improving the maintainability of the system.

[0094] Proper use of sub-copper busbars 114 helps optimize the electrical performance of the distribution box. Copper's low resistance allows sub-copper busbars 114 to reduce resistance losses when transmitting current. Compared to using overly long or thin wires to directly connect the main copper busbar 112 and relay 105, sub-copper busbars 114 can be sized appropriately based on the actual current flow, thereby reducing line resistance and minimizing power loss during transmission, thereby improving the energy efficiency of the entire distribution box.

[0095] Sub-busbar 114 directly provides current to relay 105, crucial for its proper operation. Relay 105 switches the circuit on and off based on the current transmitted by sub-busbar 114 and other control signals (such as those from load metering board 104 or other control circuits). Furthermore, the operating state of relay 105 (such as arcing during switching) can also affect sub-busbar 114. Therefore, the design must consider their compatibility. For example, choosing the appropriate size for sub-busbar 114 can withstand the transient current surges that may occur when relay 105 is switched on and off.

[0096] Although the sub-busbar 114 is not directly connected to the load metering board 104, it is indirectly connected to the board through the relay 105. The load metering board 104 measures and monitors the load of the entire distribution box by monitoring the operating status of the relay 105 and related current data (which is closely related to the current transmitted by the sub-busbar 114). For example, the load metering board 104 can determine whether the load is operating normally based on the current transmitted from the sub-busbar 114 to the relay 105. If an abnormality occurs, the relay 105 can control the circuit breaker 106 to take appropriate protective measures.

[0097] In some embodiments, the junction box 116 is optionally disposed within the housing 102, providing a relatively independent and protected installation space for the load metering board 104, the circuit breaker 106, and the current transformer 108. During maintenance or troubleshooting, workers can locate relevant components more quickly, thereby improving work efficiency.

[0098] It can be understood that by providing the junction box 116, the structure inside the junction box 116 can be used as a modular structure. The fixing and wiring structure inside the junction box 116 helps to achieve neat arrangement of the lines, avoiding confusion and crossing of the lines.

[0099] Neat wiring can reduce the risk of short circuits between wires and improve the safety of the electrical system. At the same time, standardized wiring also helps improve heat dissipation and prevent safety hazards caused by overheating of the wires.

[0100] Further, the shell of the terminal box 116 can be made of a shielding material, thereby playing a shielding role, reducing the mutual influence of electromagnetic fields, improving the electromagnetic compatibility of the system, ensuring that each component can work normally, and reducing the possibility of misoperation and signal interference.

[0101] In some embodiments, as shown in Figure 1 and Figure 6 , the terminal box 116 includes a box body 1162 and a terminal cover plate 1166. The box body 1162, as the main part of the terminal box 116, is a container with a certain shape and space, usually made of insulating materials such as plastic, etc. Its internal space forms a containing cavity 118 for accommodating electrical components such as the load metering board 104, the circuit breaker 106, and the current transformer 108, and its shape and size are designed to meet the requirements of installation, wiring, heat dissipation, etc. of these components.

[0102] At the same time, the internal structure of the box body 1162 can guide the layout of the lines, helping to realize the standardization and neatness of the wiring and improve the safety and reliability of the electrical system.

[0103] As shown in Figure 2 , the installation port 1164 is provided on one side of the box body 1162 and is an open structure. Its size and shape need to be determined according to the size and installation method of the load metering board 104 and other related components to be installed. The edge of the installation port 1164 can be specially treated, such as setting a clamping groove, a threaded hole, etc. to facilitate connection with the terminal cover plate 1166.

[0104] Under the action of the installation port 1164, components such as the load metering board 104 can be installed inside the box body 1162. During installation, the operator can accurately place the components at the predetermined position inside the box body 1162 through the opening, and it is convenient for line connection and adjustment.

[0105] It should be noted that the terminal cover plate 1166 is a component matched with the installation port 1164 and is also made of insulating materials. Its shape and size are consistent with the installation port 1164 to ensure that it can completely cover the installation port 1164, and some structures such as protrusions, buckles, or screw holes can be provided on the surface or edge for detachable connection with the installation port 1164 of the box body 1162.

[0106] The terminal cover plate 1166 is detachably connected with the installation port 1164. This connection can adopt various forms such as buckle connection, screw connection, etc. The buckle connection method is convenient and fast, and is convenient for quick disassembly and installation when maintenance or repair is needed; the screw connection is more firm and reliable, and is suitable for occasions with high connection stability requirements.

[0107] When connected to the housing 1162, the wiring cover 1166 seals the mounting opening 1164, preventing dust, moisture, and other foreign matter from entering the housing 1162. This protects components such as the load metering board 104 from environmental damage, thereby extending the service life of these components. Wiring cover 1166 also serves to secure components within the housing 1162. Once properly installed, it prevents components from shaking or shifting within the housing 1162, ensuring a stable connection and reducing the risk of electrical failures caused by loose components.

[0108] Within junction box 116, load metering board 104, along with other electrical components such as circuit breaker 106 and current transformer 108, form a complete electrical system. The structure and layout of junction box 1162 must consider the interrelationships between these components, such as ease of wiring connection and electromagnetic compatibility. For example, the current signal collected by current transformer 108 must be accurately transmitted to load metering board 104, while circuit breaker 106 must operate according to instructions from load metering board 104. The coordinated operation of these components must be ensured within the overall design framework of junction box 116.

[0109] In some embodiments, optionally, as Figure 6 As shown, the opening 1168 on the wiring cover 1166 is designed according to the shape and size of the circuit breaker 106 to ensure that the circuit breaker 106 can pass through smoothly. The position of the opening 1168 is set at a position on the wiring cover 1166 corresponding to the circuit breaker 106 so that the circuit breaker 106 can be accurately extended through the opening 1168.

[0110] Part of the circuit breaker 106 extends out of the wiring cover 1166 through the opening 1168, so that the operator can directly operate the extended circuit breaker 106 without opening the wiring cover 1166, such as manually closing and opening the circuit breaker, thereby improving the convenience of operation, reducing the trouble of frequently opening the wiring cover 1166, and also reducing the impact of operation on the internal environment of the junction box 116.

[0111] After the circuit breaker 106 extends out of the wiring cover 1166, its working status (such as closed or open status) can be observed more intuitively, making it easier to timely understand the on-off status of the circuit and facilitate monitoring and management.

[0112] In addition, the edges of the opening 1168 may be appropriately chamfered or rounded to avoid scratching or damaging the circuit breaker 106 .

[0113] In some embodiments, the controllable load 120 includes a hot line and a ground line, the hot line as the main power supply line during the charging process, providing the required power for the electric vehicle charging, and the voltage of the hot line is the main source of energy during the charging process, in some power supply scenarios, the voltage corresponding to a hot line is 120V, of course, the voltage value is usually determined according to different charging standards (such as 220V commonly used in household charging piles).

[0114] The controllable load 120 is connected through two power lines 122, which include a hot line and a ground line, the hot line as the live line in the power line 122, transmitting the power from the circuit breaker 106 to the controllable load 120. In the connection between the distribution box and the controllable load 120, the hot line is connected to the other end of the circuit breaker 106, and the circuit breaker 106 controls the current in the hot line. When the circuit is normal, the current is allowed to flow through the hot line to the load, so that the load works normally, such as providing power for various electrical equipment, driving the motor to run, lighting the lamps, etc.

[0115] When the current in the hot line exceeds the rated current of the circuit breaker 106 (overload condition) or the hot line is accidentally short-circuited with the zero line or the ground line (short-circuit condition), the circuit breaker 106 can quickly cut off the connection of the hot line, thereby protecting the safety of the load, the line and the entire electrical system.

[0116] In addition, the ground line is a line specially used for safety protection, which is directly connected to the ground. In the entire electrical system, one end of the ground line is connected to the controllable load 120, and the other end is connected to the ground.

[0117] The main function of the ground line is to provide a safe discharge channel for the current when the electrical equipment leaks. When there is a fault inside the controllable load 120, causing the shell to be electrified, the current will flow into the ground through the ground line instead of through the human body, thereby avoiding the occurrence of electric shock accidents.

[0118] In some embodiments, the controllable load 120 includes a first hot line, a second hot line and a ground line, wherein the first hot line and the second hot line are respectively electrically connected to the circuit breaker 106, and the hot line as two power supply lines, each hot line is electrically connected to a circuit breaker 106, and the current of the first hot line is managed through the control of the circuit breaker 106. In normal power supply, the circuit breaker 106 is closed, and the current flows through the first hot line and the second hot line to charge or reverse charge the electric vehicle; when an abnormal condition such as overload or short circuit occurs, the circuit breaker 106 is opened to protect the circuit and the equipment.

[0119] Generally, the voltage corresponding to a hot line is 120V, and in this scheme, it can be adapted to a voltage scenario of 240V.

[0120] The first and second live wires are electrically connected to two adjacent circuit breakers 106, respectively, so that each circuit breaker 106 can independently control the on-off of one live wire.

[0121] When an overload or short circuit occurs in the controllable load 120 during operation, the corresponding circuit breaker 106 can quickly detect the abnormal current and automatically cut off the connection with the live wire, thereby protecting the controllable load 120, the power line 122, and other related equipment from damage. For example, if a short circuit occurs in the load on the first live wire, the circuit breaker 106 connected to the first live wire will immediately trip, preventing excessive current from causing damage to the entire circuit system.

[0122] According to the intelligent distribution box provided by the utility model, the current transformer is arranged between the circuit breaker and the relay for connecting the controllable load, real-time monitoring and protection of each load in the power system are realized, accurate control of the load is ensured, and current load can be monitored in real time.

[0123] In the utility model, the terms "first", "second", "third" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be direct connection, or indirect connection through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0124] In the description of the utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0125] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like 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 utility model. In this specification, the illustrative description 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.

[0126] The above merely is preferred embodiment of the present utility model, and is not used for limiting the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be contained in the protection scope of the present utility model.

Claims

1. An intelligent distribution box, characterized in that: include: Box; A load metering board is provided in the box body, the load metering board includes a plurality of load metering components, the plurality of load metering components are used to monitor or control a plurality of controllable loads, the plurality of load metering components are used to be connected to the plurality of controllable loads, and each of the load metering components includes: a relay, the relay being fixed to the load metering plate; a circuit breaker, one end of the circuit breaker being connected to the current transformer, and the other end of the circuit breaker being used to connect to a controllable load; The current transformer is provided at the connection portion between the relay and the circuit breaker, and is used to collect electrical parameters at the connection portion.

2. The intelligent distribution box according to claim 1, characterized in that: The connecting portion includes: A connecting copper bar, one end of which is electrically connected to the circuit breaker, the other end of which is electrically connected to the relay, and the connecting copper bar passes through the current transformer.

3. The intelligent distribution box according to claim 1, characterized in that: Also includes: The support structure is provided with a plurality of mounting slots, each of the mounting slots being used to accommodate a current transformer of at least one of the load metering components.

4. The intelligent distribution box according to claim 3, characterized in that: The load metering plate comprises: Two spaced apart plates, each plate being provided with at least one relay, and the relay being provided on a side of the plate facing the other plate; Wherein, the support structure is provided between the two plates.

5. The intelligent distribution box according to claim 1, characterized in that: Also includes: A main copper busbar is provided on one side of the load metering board, and the main copper busbar is electrically connected to at least one of the relays.

6. The intelligent distribution box according to claim 5, characterized in that: include: At least one sub-copper bar, one end of the sub-copper bar is connected to the main copper bar, and the other end of the sub-copper bar is connected to the relay.

7. The intelligent distribution box according to claim 1, characterized in that: A junction box is provided in the box body, and the load metering board, the circuit breaker and the current transformer are arranged in the junction box.

8. The intelligent distribution box according to claim 7, characterized in that: The junction box comprises: A box body, one side of which is provided with a mounting opening, a wiring cover plate, detachably connected to the mounting opening; The box body and the wiring cover are connected to form a receiving cavity for receiving the load metering plate.

9. The intelligent distribution box according to claim 8, characterized in that: The wiring cover is provided with an opening, and part of the circuit breaker extends out of the wiring cover through the opening.

10. The intelligent distribution box according to any one of claims 1 to 9, characterized in that: The controllable load includes two power lines, and the two power lines include a live line and a ground line. The live line is connected to the other end of the circuit breaker, and the ground line is grounded.

11. The intelligent distribution box according to any one of claims 1 to 9, characterized in that: The controllable load includes three power lines, and the three power lines include a first live line, a second live line and a ground line; The first live wire and the second live wire are electrically connected to two adjacent circuit breakers respectively, and the ground wire is grounded.

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