Comprehensive distribution box and method thereof
The simplified wiring of the distribution box by the display and control terminal solves the problem of complex wiring in the existing technology, and improves production efficiency and ease of operation.
Patent Information
- Application Number
- CN202511705732.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-02-13
AI Technical Summary
The wiring of existing distribution boxes is complex, resulting in low manufacturing efficiency and making simplification difficult.
Using a display and control terminal as an intermediate medium, the circuit breaker is electrically connected to the trip button, the closing button, the trip indicator light, and the closing indicator light, and is also communicatively connected to the Internet of Things circuit breaker, simplifying the wiring process.
It simplifies wiring, improves production efficiency, facilitates manufacturing and maintenance, and is simple and intuitive to operate.
Smart Images
Figure CN121529324A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power distribution technology, and in particular to an integrated power distribution box and its method. Background Technology
[0002] With the construction of new power systems and the deepening application of smart grids, the integrated distribution box, as one of the core terminal devices in the distribution network system, plays a crucial role. It not only undertakes traditional tasks such as receiving and distributing electrical energy from the large power grid and metering electricity, but also, due to the large-scale application of distributed new energy access, it can connect distributed energy sources and aggregate electrical energy to the large power grid.
[0003] In order to control and display the opening and closing status of the circuit breaker in multiple feeder circuits, the relevant technology has set up multiple buttons and indicator lights on the door panel of the distribution box. Each button and indicator light is hard-wired to its corresponding circuit breaker inside the box. However, this layout results in a large number of secondary connection wires between the inside of the distribution box and the door panel. In addition, the secondary wiring harness needs to have a certain curvature and slack to facilitate the opening of the door panel. Overall, this makes the wiring process of the distribution box complicated and becomes a bottleneck in the production and manufacturing of distribution boxes. Summary of the Invention
[0004] In view of the above-mentioned defects or deficiencies in the related technologies, it is desirable to provide an integrated distribution box and method thereof, which is simple to wire, easy to manufacture, and can improve production efficiency.
[0005] In a first aspect, this application provides a comprehensive power distribution box, which includes a display and control terminal, a trip button, a closing button, a trip indicator light, and a closing indicator light mounted on a door panel. The trip button and the closing button are electrically connected to a first terminal of the display and control terminal, and the trip indicator light and the closing indicator light are electrically connected to a second terminal of the display and control terminal. The third terminal of the display and control terminal is communicatively connected to the first to second circuits inside the box. N IoT circuit breakers for roads N It is a positive integer; The display and control terminal is used to respond to page turning actions, call up the display and control pages of each IoT circuit breaker, receive input commands from the trip button or the close button, perform corresponding control on each IoT circuit breaker, and display status through the trip indicator light or the close indicator light.
[0006] Optionally, in some embodiments of this application, the display and control terminal is also used to poll each IoT circuit breaker and display the measurement and control data of the IoT circuit breaker, including operating voltage, operating current and contact temperature.
[0007] Optionally, in some embodiments of this application, in displaying the measurement and control data of the IoT circuit breaker, the display and control terminal is specifically used to, if the circuit index is within the normal threshold range, use each circuit as a benchmark to cyclically display different indexes of the same circuit.
[0008] Optionally, in some embodiments of this application, in displaying the measurement and control data of the IoT circuit breaker, the display and control terminal is specifically used to display different indicators of the same circuit in a fixed list based on each circuit if multiple indicators of one or more circuits exceed the alarm value, and the alarm value is a fixed value, and the alarm indicators are highlighted.
[0009] Optionally, in some embodiments of this application, in displaying the measurement and control data of the IoT circuit breaker, the display and control terminal is specifically used to compare and display the bar charts of different circuits based on each indicator if multiple indicators of more than one circuit exceed the warning value, and the warning value is a changing value, and to highlight the warning circuit.
[0010] Optionally, in some embodiments of this application, in determining the warning value, the display and control terminal is used to calculate the average voltage value corresponding to different circuits, and to take 110% of the average voltage value as the warning value of the operating voltage.
[0011] Optionally, in some embodiments of this application, in determining the warning value, the display and control terminal is used to use 108% of the loop current value with the same load as the warning value of the operating current.
[0012] Optionally, in some embodiments of this application, the display and control terminal is used to obtain the warning value of the contact temperature by means of the following formula in determining the warning value: ; In the above formula, This indicates the warning value for the contact temperature. This indicates the ambient temperature inside the distribution box. Indicates the circuit temperature rise value. , Indicates air density, This indicates the specific heat capacity of air. This represents the heat generated by the measured circuit current. ; In the above formula, This represents the measured loop current. Indicates the length of the copper busbar in the circuit. This represents the cross-sectional area of the copper busbar in the circuit.
[0013] Optionally, in some embodiments of this application, the integrated distribution box further includes a knife-fuse switch, a current transformer, a smart capacitor, and a reactive power compensation controller located inside the box. The first end of the knife-fuse switch is connected to the power supply, and the second end of the knife-fuse switch is connected to the first end of the IoT circuit breaker and the smart capacitor via a copper busbar passing through the current transformer. The second end of the IoT circuit breaker is connected to the outgoing cable. The reactive power compensation controller is used to perform phase analysis based on the voltage of the distribution box and the sampled current of the transformer to obtain the load type of the current circuit. The load type includes inductive load and capacitive load. Based on the load type of the current circuit, the controller controls the smart capacitor to connect or disconnect the capacitor.
[0014] Secondly, this application provides a power distribution method, the power distribution method being used in the display and control terminal of the integrated power distribution box according to any one of the first aspects, the power distribution method comprising: In response to the page turning action, the display and control pages of each IoT circuit breaker are brought up respectively; The system receives input commands from the trip button or the close button, controls each IoT circuit breaker accordingly, and displays the status via the trip indicator light or the close indicator light.
[0015] As can be seen from the above technical solutions, the embodiments of this application have the following advantages: This application provides an integrated power distribution box and method, which uses a display and control terminal as an intermediate medium to electrically connect the trip button, the close button, the trip indicator light, and the close indicator light, and to communicate with the first to the second... N IoT circuit breakers for roads N The circuit breaker is a positive integer, eliminating the need for complex wiring. Its simple structure facilitates manufacturing and maintenance, significantly improving production efficiency. Furthermore, it allows users to access the display and control pages of each IoT circuit breaker via a display and control terminal. By combining input commands from the trip or close buttons, users can control each IoT circuit breaker accordingly. The status is also displayed via trip or close indicator lights, making the operation simple, intuitive, and easy to understand. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of an integrated power distribution box provided in an embodiment of this application; Figure 2 A schematic diagram of the input logic of an integrated distribution box provided for an embodiment of this application; Figure 3 A schematic diagram of the output logic of an integrated distribution box provided in this application embodiment; Figure 4 This application provides a schematic diagram of a primary electrical connection relationship. Figure 5 This is a schematic flowchart of a power distribution method provided in an embodiment of this application.
[0018] Figure label: 10-Integrated distribution box, 101-Display and control terminal, 102-Tap button, 103-Close button, 104-Tap indicator light, 105-Close indicator light, 106-IoT circuit breaker, 107-Knife fuse switch, 108-Instrument transformer, 109-Smart capacitor, 110-Reactive power compensation controller. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following examples illustrate this. Figures 1 to 5 The integrated power distribution box and its method provided in the embodiments of this application are described in detail.
[0022] Please refer to Figure 1 This is a schematic diagram of the structure of an integrated power distribution box provided in the embodiment of this application. The integrated power distribution box 10 includes a display and control terminal 101, a trip button 102, a close button 103, a trip indicator light 104, and a close indicator light 105 installed on the door panel.
[0023] Specifically, the trip button 102 and the close button 103 are electrically connected to the first terminal of the display and control terminal 101, i.e., the input terminal of the display and control terminal 101. The trip indicator light 104 and the close indicator light 105 are electrically connected to the second terminal of the display and control terminal 101, i.e., the output terminal of the display and control terminal 101. The third terminal of the display and control terminal 101 is communicatively connected to the first to the second circuit inside the enclosure. N The Internet of Things (IoT) circuit breaker 106 for the roadN It must be a positive integer. For example, when using a set of RS485 communication lines for communication connection, 1 ≤ N ≤10. For example, the display terminal 101 has physical buttons numbered 1-4 on its panel, corresponding to the cancel function, left page turning function, right page turning function, and confirm function, respectively. The left page turning function and right page turning function can be activated by buttons 1-4. N A display control page, such as Figure 2 As shown, each display page has different flag bits, and different flag bits are related to 1- N The circuit breaker 106 of the Internet of Things corresponds one-to-one. The physical button and two pushbuttons form an input matrix, which can form 2 N One input command, and communicate with 1- via RS485 communication line. N The interaction with the IoT circuit breaker enables the closing and opening control of the IoT circuit breaker 106. Similarly, for example... Figure 3 As shown, the physical buttons and two indicator lights form an output matrix, which can generate 2 N The status is displayed, and it communicates with 1- via an RS485 communication line. N The interaction with the IoT circuit breaker enables the display of the closing and opening status of the IoT circuit breaker 106.
[0024] In actual use, the display and control terminal 101 can respond to page-turning actions, bringing up the display and control pages of each IoT circuit breaker, and receiving input commands from the trip button 102 or the close button 103 to control each IoT circuit breaker accordingly. It also displays the status via the trip indicator light 104 or the close indicator light 105. This design is advantageous because it is unaffected by electromagnetic interference in the power distribution environment, effectively reducing manufacturing costs. Of course, in some embodiments of this application, the functions of both buttons and controls can be integrated into the touchscreen display.
[0025] In some embodiments of this application, the display and control terminal 101 can also periodically or irregularly poll each IoT circuit breaker and display the measurement and control data of the IoT circuit breaker. The measurement and control data includes, but is not limited to, operating voltage, operating current and contact temperature. In other words, in addition to being able to electrically close and electrically open, and having the protection and switching functions of branch power distribution, the IoT circuit breaker 106 also has the function of measuring operating voltage, operating current and contact temperature.
[0026] Furthermore, regarding the display of measurement and control data from IoT circuit breakers, for example, the display and control terminal 101 can, when circuit indicators are within the normal threshold range, use each circuit as a reference to cyclically display different indicators of the same circuit in a list. These indicators include, but are not limited to, operating voltage, operating current, and contact temperature. The normal threshold range can be preset, and the cyclic display interval can be 10 seconds. As another example, when multiple indicators of more than one circuit exceed alarm values, the display and control terminal 101 can, using each circuit as a reference, use a list to permanently display different indicators of the same circuit, highlighting the alarm indicators for easy and intuitive viewing. The alarm values are fixed values, for example, displayed in the order of contact temperature >> operating current >> operating voltage. The display and control page can be manually switched using the buttons on the display and control terminal 101.
[0027] For example, the display and control terminal 101 can, when multiple indicators of one or more loops exceed the warning value, use each indicator as a benchmark to cyclically compare and display the bar charts of different loops, and highlight the warning loops for easy identification. The warning value is a changing value, and the warning value is less than the alarm value. The time interval for cyclic comparison and display can also be 10 seconds.
[0028] Furthermore, in determining the warning value, for example, the display and control terminal 101 can calculate the average voltage value corresponding to different circuits and use 110% of the average voltage value as the warning value of the operating voltage. For example, if there are three-phase circuits A, B, and C in the wiring box, the voltage of these three-phase circuits is averaged to obtain the average voltage value. Then, if the voltage value of a certain phase circuit is greater than or equal to 110% of the average voltage value, a warning is issued. Another example is that the display and control terminal 101 can use 108% of the current value of the circuit with the same load as the warning value of the operating current. For example, circuits with the same load are circuits of the same capacity and type. The current values of each phase circuit are compared separately, i.e., A phase is compared to A phase, B phase to B phase, and C phase to C phase. Yet another example is that the display and control terminal 101 can obtain the warning value of the contact temperature through equations (1) to (3), i.e.: (1) In equation (1), This indicates the warning value for the contact temperature. This indicates the ambient temperature inside the distribution box. Indicates the circuit temperature rise value. (2) In equation (2), Indicates air density, This indicates the specific heat capacity of air. This represents the heat generated by the measured circuit current. (3) In equation (3), This represents the measured loop current. Indicates the length of the copper busbar in the circuit. This represents the cross-sectional area of the copper busbar in the circuit. It should be noted that the method for calculating the warning value is invalid when the actual value exceeds the alarm value.
[0029] In some embodiments of this application, in addition to the secondary electrical scheme described above, the integrated distribution box 10 also includes a primary electrical scheme. For example... Figure 4 As shown, the integrated distribution box 10 also includes a knife fuse switch 107, a current transformer 108, a smart capacitor 109, and a reactive power compensation controller 110 located inside the box. Figure 4 (Not shown in the diagram) The first terminal of the knife-fuse switch 107 is connected to the power supply. The second terminal of the knife-fuse switch 107 is connected to the first terminal of the IoT circuit breaker 106 and the smart capacitor 109 via a copper busbar passing through the current transformer 108. The second terminal of the IoT circuit breaker 106 is connected to the outgoing cable. The knife-fuse switch 107 is the main switch of the integrated distribution box 10, serving as a protection and isolation point. The current transformer 108 can sample current and is electrically connected to the reactive power compensation controller 110 through secondary circuitry. The smart capacitor 109 has a reactive power compensation function; it can receive commands from the reactive power compensation controller 110 to connect or disconnect the capacitor, and it itself has protection, filtering, and reactive power compensation functions.
[0030] The reactive power compensation controller 110 can perform phase analysis based on the voltage of the distribution box and the sampled current of the transformer 108 to obtain the load type of the current circuit. Based on the load type, it controls the intelligent capacitor 109 to switch on or off. The load type includes inductive load and capacitive load; for example, the capacitor is switched on for inductive load and switched off for capacitive load. Similarly, the third terminal of the display and control terminal 101 can also interact with the reactive power compensation controller 110 via an RS485 communication line and periodically or irregularly poll the internal register of the reactive power compensation controller 110 to obtain the power factor. There is no warning value for the power factor, but the alarm value can be 0.9. An alarm is triggered when the value is less than or equal to 0.9. When multiple indicators of more than one circuit exceed the alarm value, they can be displayed in a fixed order of contact temperature >> operating current >> operating voltage >> power factor, and the display page can be manually switched by pressing a button.
[0031] The integrated power distribution box provided in this application embodiment uses a display and control terminal as an intermediate medium to electrically connect to the trip button, the close button, the trip indicator light, and the close indicator light, as well as to the IoT circuit breakers of the first to Nth circuits via communication. NThe circuit breaker is a positive integer, eliminating the need for complex wiring. Its simple structure facilitates manufacturing and maintenance, significantly improving production efficiency. Furthermore, it allows users to access the display and control pages of each IoT circuit breaker via a display and control terminal. By combining input commands from the trip or close buttons, users can control each IoT circuit breaker accordingly. The status is also displayed via trip or close indicator lights, making the operation simple, intuitive, and easy to understand.
[0032] Based on the foregoing embodiments, this application provides a power distribution method that can be used for... Figures 1 to 4 The corresponding embodiment includes the display and control terminal 101 of any integrated power distribution box 10. Please refer to... Figure 5 This is a flowchart illustrating a power distribution method provided in an embodiment of this application. The power distribution method specifically includes the following steps: S101 responds to the page turning action and brings up the display and control pages of each IoT circuit breaker.
[0033] S102 receives input commands from the trip button or the close button, controls each IoT circuit breaker accordingly, and displays the status through the trip indicator light or the close indicator light.
[0034] It should be noted that the descriptions of the same steps and contents as in other embodiments in this embodiment can be found in the descriptions in other embodiments, and will not be repeated here.
[0035] The power distribution method provided in this application embodiment utilizes a display and control terminal as an intermediate medium to electrically connect the trip button, the close button, the trip indicator light, and the close indicator light, as well as to communicate with the IoT circuit breakers of the first to Nth circuits. N The circuit breaker is a positive integer, eliminating the need for complex wiring. Its simple structure facilitates manufacturing and maintenance, significantly improving production efficiency. Furthermore, it allows users to access the display and control pages of each IoT circuit breaker via a display and control terminal. By combining input commands from the trip or close buttons, users can control each IoT circuit breaker accordingly. The status is also displayed via trip or close indicator lights, making the operation simple, intuitive, and easy to understand.
[0036] In another aspect, embodiments of this application provide a computer-readable storage medium for storing program code for executing the aforementioned... Figure 5 Any implementation of the power distribution method in the corresponding embodiment.
[0037] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and modules described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0038] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed between each other can be through some interfaces, indirect coupling or communication connection between devices or modules, and can be electrical, mechanical, or other forms. Modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.
[0039] Furthermore, the functional modules in the various embodiments of this application can be integrated into one processing unit, or each module can exist physically separately, or two or more units can be integrated into one module. The integrated unit can be implemented in hardware or as a software functional unit. If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
[0040] Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the power distribution method of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0042] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A comprehensive power distribution box, characterized in that, The integrated power distribution box (10) includes a display and control terminal (101), a trip button (102), a closing button (103), a trip indicator light (104), and a closing indicator light (105) mounted on the door panel. The trip button (102) and the closing button (103) are electrically connected to the first end of the display and control terminal (101), and the trip indicator light (104) and the closing indicator light (105) are electrically connected to the second end of the display and control terminal (101). The third end of the display and control terminal (101) is communicatively connected to the first to the second circuit inside the box. N IoT circuit breaker for the road (106). N It is a positive integer; The display and control terminal (101) is used to respond to the page turning action, call up the display and control page of each IoT circuit breaker, and receive the input command of the trip button (102) or the close button (103) to control each IoT circuit breaker accordingly, and display the status through the trip indicator light (104) or the close indicator light (105).
2. The integrated distribution box according to claim 1, characterized in that, The display and control terminal (101) is also used to poll each IoT circuit breaker and display the measurement and control data of the IoT circuit breaker, including operating voltage, operating current and contact temperature.
3. The integrated distribution box according to claim 2, characterized in that, Regarding the display of the measurement and control data of the IoT circuit breaker, the display and control terminal (101) is specifically used to, if the circuit index is within the normal threshold range, use each circuit as a reference to display different indexes of the same circuit in a loop.
4. The integrated power distribution box according to claim 2, characterized in that, Regarding the display of the measurement and control data of the IoT circuit breaker, the display and control terminal (101) is specifically used to display different indicators of the same circuit in a fixed list based on each circuit if multiple indicators of more than one circuit exceed the alarm value, and the alarm value is a fixed value, and to highlight the alarm indicators.
5. The integrated distribution box according to claim 2, characterized in that, In displaying the measurement and control data of the IoT circuit breaker, the display and control terminal (101) is specifically used to compare and display the bar charts of different circuits based on each indicator if multiple indicators of more than one circuit exceed the warning value, and the warning value is a changing value, and to highlight the warning circuit.
6. The integrated distribution box according to claim 5, characterized in that, In determining the warning value, the display and control terminal (101) is used to calculate the average voltage value corresponding to different circuits, and to take 110% of the average voltage value as the warning value of the operating voltage.
7. The integrated distribution box according to claim 5, characterized in that, In determining the warning value, the display and control terminal (101) uses 108% of the circuit current value with the same load as the warning value of the operating current.
8. The integrated distribution box according to claim 5, characterized in that, In determining the warning value, the display and control terminal (101) is used to obtain the warning value of the contact temperature using the following formula: ； In the above formula, This indicates the warning value for the contact temperature. This indicates the ambient temperature inside the distribution box. Indicates the circuit temperature rise value. , Indicates air density, This indicates the specific heat capacity of air. This represents the heat generated by the measured circuit current. ； In the above formula, This represents the measured loop current. Indicates the length of the copper busbar in the circuit. This represents the cross-sectional area of the copper busbar in the circuit.
9. The integrated distribution box according to any one of claims 1 to 8, characterized in that, The integrated distribution box (10) also includes a knife-fuse switch (107), a current transformer (108), a smart capacitor (109), and a reactive power compensation controller (110) located inside the box. The first end of the knife-fuse switch (107) is connected to the power supply. The second end of the knife-fuse switch (107) is connected to the first end of the IoT circuit breaker (106) and the smart capacitor (109) via a copper busbar passing through the current transformer (108). The second end of the IoT circuit breaker (106) is connected to the outgoing cable. The reactive power compensation controller (110) is used to perform phase analysis based on the voltage of the distribution box and the sampling current of the transformer (108) to obtain the load type of the current circuit, the load type including inductive load and capacitive load, and control the smart capacitor (109) to connect or disconnect the capacitor based on the load type of the current circuit.
10. A power distribution method, characterized in that, The power distribution method is used in the display and control terminal of the integrated power distribution box according to any one of claims 1 to 9, and the power distribution method includes: In response to the page turning action, the display and control pages of each IoT circuit breaker are brought up respectively; The system receives input commands from the trip button or the close button, controls each IoT circuit breaker accordingly, and displays the status via the trip indicator light or the close indicator light.