Intelligent distribution box and power supply equipment for temporary power utilization on construction site
By introducing intelligent distribution boxes at construction sites, integrating various sensors and controllers, real-time monitoring and data analysis are achieved, solving the problems of low safety and management efficiency of traditional distribution boxes, and improving the electrical safety and energy utilization efficiency at construction sites.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO ZHEJIANG IND CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional three-level distribution boxes at construction sites lack intelligent and automated management, resulting in low safety, low management efficiency, poor energy consumption control, and difficulty in coping with complex environments, posing safety hazards and high maintenance costs.
Design an intelligent power distribution box for temporary power supply at construction sites, integrating incoming cables, circuit breakers, current transformers, branch circuit breakers, outgoing terminals, and controllers. Equipped with voltage transformers, temperature sensors, sensor secondary circuits, signal conditioning modules, protection modules, short-circuit reset modules, identification modules, wireless modules, and display modules, it enables real-time monitoring, data analysis, and remote control.
It improves the safety of electricity use and energy efficiency at construction sites, reduces accidents, lowers electricity consumption, and promotes green construction.
Smart Images

Figure CN224204626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment technology, specifically to an intelligent power distribution box and power supply equipment for temporary power supply at construction sites. Background Technology
[0002] On construction sites, the safety and management efficiency of temporary electrical equipment are key factors in ensuring the smooth progress of the project. Traditional three-level distribution boxes, as the core equipment for power distribution, while simple in structure and single in function (mainly composed of main and branch switches, fuses, ammeters, and voltmeters), rely primarily on manual operation and basic protection devices, lacking intelligent, automated, and data-driven management capabilities, thus presenting numerous limitations. First, the accuracy and timeliness of manual monitoring are affected by personnel experience and responsibility, easily leading to misjudgments or omissions, especially in complex construction sites with frequent power load changes, making it difficult to cope with emergencies and increasing safety hazards. Second, the complex environment of construction sites makes it difficult for traditional distribution boxes to respond promptly to current overloads or line faults, potentially leading to equipment overheating, fires, or electric shocks, as they lack intelligent protection mechanisms to provide early warnings and automatically cut off power. Furthermore, traditional distribution boxes cannot achieve remote monitoring and control, requiring managers to operate on-site, resulting in low efficiency and a lack of data collection and analysis capabilities, leading to wasted power resources and increased construction costs. Traditional distribution boxes have high maintenance and management costs, requiring regular manual inspections and maintenance. When a fault occurs, equipment replacement or large-scale repairs are often necessary, further increasing costs. Finally, they are prone to failure in harsh environments such as high temperature, high humidity, and dust, and their lightning protection and shock resistance are limited, making them unsuitable for complex and ever-changing construction environments.
[0003] Therefore, traditional three-level distribution boxes have many problems in terms of safety, management efficiency and energy consumption control. There is an urgent need to introduce intelligent and automated distribution box technology to improve the safety, management efficiency and energy consumption control level of the power system at the construction site through functions such as real-time monitoring, fault early warning, automatic protection and energy consumption analysis. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide an intelligent power distribution box and power supply equipment for temporary power supply at construction sites. This power distribution box can accurately manage temporary power supply at construction sites, significantly improve power safety, and through real-time monitoring and data analysis, can not only effectively reduce the occurrence of accidents, but also improve energy utilization efficiency, reduce power consumption, and promote green construction.
[0005] To achieve the above objectives, this utility model provides a smart temporary power distribution box for construction sites, the distribution box comprising:
[0006] The incoming cable is used to connect to the mains power supply;
[0007] An incoming line circuit breaker, the first end of which is connected to the incoming line cable;
[0008] A current transformer, wherein the first end of the current transformer is connected to the second end of the incoming circuit breaker;
[0009] A branch circuit breaker, wherein the first terminal of the branch circuit breaker is connected to the second terminal of the current transformer;
[0010] Outgoing terminal, one end of which is connected to the second end of the branch circuit breaker for connection to the load end;
[0011] The controller is connected to the incoming circuit breaker, the branch circuit breaker, and the current transformer.
[0012] Optionally, the distribution box further includes:
[0013] The shunt current transformer has its first end connected to the second end of the shunt circuit breaker, its second end connected to the outgoing terminal, and its third end connected to the controller, for real-time acquisition of the current of each circuit.
[0014] Optionally, the distribution box further includes:
[0015] A voltage transformer, one end of which is connected to the third terminal of the incoming circuit breaker, and the other end of which is connected to the controller, for real-time acquisition of the voltage of the main circuit.
[0016] Optionally, the distribution box further includes:
[0017] A temperature sensor, one end of which is connected to the incoming circuit breaker and the other end of which is connected to the controller, is used to collect the temperature of the main circuit in real time.
[0018] Optionally, the distribution box further includes:
[0019] The sensor secondary circuit has a first terminal connected to the voltage transformer, temperature sensor, current transformer, and shunt current transformer, and a second terminal connected to the controller.
[0020] A signal conditioning module, one end of which is connected to the third end of the secondary circuit of the sensor;
[0021] The protection module has a first terminal connected to the other terminal of the signal conditioning module, a second terminal connected to the controller, and a third terminal connected to the third terminal of the shunt circuit breaker.
[0022] A short-circuit reset module, one end of which is connected to the fourth terminal of the protection module, and the other end of which is connected to the controller.
[0023] Optionally, the distribution box further includes:
[0024] An identity recognition module, which is connected to the controller, is used for near-field communication to identify operators.
[0025] Optionally, the distribution box further includes:
[0026] A wireless module, which is connected to the controller.
[0027] Optionally, the distribution box further includes:
[0028] The display module is connected to the controller.
[0029] On the other hand, this utility model also provides a smart power supply device for temporary power supply at construction sites, the power supply device comprising:
[0030] Power supply;
[0031] Intelligent distribution boxes as described above.
[0032] Through the above technical solution, this utility model provides an intelligent distribution box and power supply equipment for temporary power supply at construction sites. This intelligent distribution box enables precise management of temporary power supply at construction sites, significantly improving power safety. Furthermore, the addition of a universal intelligent monitoring module allows for reuse across various projects and construction sites. Through real-time monitoring and data analysis, it not only effectively reduces accidents but also improves energy efficiency, lowers electricity consumption, and promotes green construction. Attached Figure Description
[0033] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:
[0034] Figure 1 This is a logic block diagram of a construction site temporary power distribution box according to one embodiment of the present utility model;
[0035] Figure 2 This is a control circuit logic block diagram of a construction site temporary power intelligent distribution box according to one embodiment of the present utility model;
[0036] Figure 3 This is a schematic diagram of each circuit of a temporary power distribution box for construction sites according to one embodiment of the present utility model.
[0037] Figure 4 This is a circuit structure diagram of a temporary power distribution box for construction sites according to one embodiment of the present invention.
[0038] Explanation of reference numerals in the attached figures
[0039] 01. Main Circuit 02. Control Circuit
[0040] 03. Incoming cable 04. Incoming circuit breaker
[0041] 05. Current transformer 06. Branch circuit breaker
[0042] 07. Outgoing terminal 08. Load
[0043] 09. Controller; 10. Branch current transformer
[0044] 11. Voltage transformer 12. Copper busbar
[0045] 13. Temperature sensor 14. Sensor secondary circuit
[0046] 15. Signal conditioning module 16. Short-circuit reset module
[0047] 17. Protection module 18. I / O module
[0048] 19. Identity recognition module; 20. Wireless module
[0049] 21. Display module MCU, intelligent monitoring device
[0050] HA, First button TA, Second button
[0051] 1ZK, First air switch; 2ZK, Second air switch
[0052] QF, main circuit breaker 1QF, first branch circuit breaker
[0053] 6QF, sixth branch circuit breaker HQ, closing coil
[0054] TQ, trip coil HR, first indicator light
[0055] HG, second signal light TV, voltage transformer
[0056] TAa, First current transformer of the main circuit; TAb, Second current transformer of the main circuit
[0057] TAc, main circuit third current transformer TA1, first circuit current transformer
[0058] TA2, second circuit current transformer; TA6, sixth circuit current transformer
[0059] WQ, temperature sensor Detailed Implementation
[0060] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.
[0061] like Figure 1 The diagram shown is a circuit diagram of a temporary power distribution box for construction sites according to one embodiment of the present invention. Figure 1 The distribution box includes an incoming cable 03, an incoming circuit breaker 04, a current transformer 05, a branch circuit breaker 06, an outgoing terminal 07, and a controller 09. Specifically, the incoming cable 03 is used to connect to the mains power supply. The first end of the incoming circuit breaker 04 is connected to the incoming cable 03 for overall overload and short-circuit protection. The first end of the current transformer 05 is connected to the second end of the incoming circuit breaker 04 for monitoring current. The first end of the branch circuit breaker 06 is connected to the second end of the current transformer 05 for overload and short-circuit protection of each branch circuit. One end of the outgoing terminal 07 is connected to the second end of the branch circuit breaker 06 for connection to the load 08. The controller 09 is connected to the incoming circuit breaker 04, the branch circuit breaker 06, and the current transformer 05 for data processing and logic control of the collected parameters. This distribution box can monitor the main circuit current in real time and perform circuit protection operations through the controller, improving construction safety.
[0062] In this embodiment, such as Figure 2 As shown, the distribution box also includes branch current transformers 10. Specifically, the first terminal of the branch current transformer 10 is connected to the second terminal of the branch circuit breaker 06, the second terminal of the branch current transformer 10 is connected to the outgoing terminal 07, and the third terminal of the branch current transformer 10 is connected to the controller 09 for real-time acquisition of the current of each circuit. This distribution box can monitor the main circuit current and the current of each circuit in real time, and perform circuit protection operations through the controller 09, thereby improving construction safety.
[0063] In this embodiment, such as Figure 2 As shown, the distribution box also includes a voltage transformer 11. Specifically, one end of the voltage transformer 11 is connected to the third terminal of the incoming circuit breaker 04, and the other end of the voltage transformer 11 is connected to the controller 09 for real-time acquisition of the voltage of the main circuit 01. This distribution box can monitor the main circuit current, the current of each loop, and the main circuit voltage in real time, and perform circuit protection operations through the controller 09, thereby improving construction safety.
[0064] In this embodiment, such as Figure 2As shown, the distribution box also includes a temperature sensor 13. Specifically, one end of the temperature sensor 13 is connected to the incoming circuit breaker 04, and the other end is connected to the controller 09, for real-time acquisition of the temperature of the main circuit 01. This distribution box can monitor the main circuit current, the current of each loop, the main circuit voltage, and the main circuit temperature in real time, and perform circuit protection operations through the controller 09, thereby improving construction safety.
[0065] In this embodiment, such as Figure 2 As shown, the distribution box also includes a sensor secondary circuit 14, a signal conditioning module 15, a protection module 17, and a short-circuit reset module 16. Specifically, the first terminal of the sensor secondary circuit 14 is connected to the voltage transformer 11, the temperature sensor 13, the current transformer 05, and the branch current transformer 10. The second terminal of the sensor secondary circuit 14 is connected to the controller 09. The sensor secondary circuit 14 is used to process the collected voltage data, temperature data, current data, and current data of each branch circuit of the main circuit. One terminal of the signal conditioning module 15 is connected to the third terminal of the sensor secondary circuit 14 for signal conversion. The first terminal of the protection module 17 is connected to the other terminal of the signal conditioning module 15. The second terminal of the protection module 17 is connected to the controller 09, and the third terminal of the protection module 17 is connected to the third terminal of the branch circuit breaker 06 for tripping the corresponding branch circuit breaker. One end of the short-circuit reset module 16 is connected to the fourth terminal of the protection module 17, and the other end of the short-circuit reset module 16 is connected to the controller 09. It is used to receive signals from the protection module and transmit the signals to the controller. This distribution box can monitor the main circuit current, current in each loop, main circuit voltage, and main circuit temperature in real time. Circuit protection operations are performed through the controller 09. Simultaneously, in the event of a short circuit or controller malfunction, the signal conditioning module 15 can directly drive the protection module 17 to perform protection operations. The protection module 17 outputs a signal to the short-circuit reset module 16, which then sends the abnormal status to the controller 09, improving construction safety.
[0066] In this embodiment, such as Figure 2 As shown, the distribution box also includes an identification module 19. Specifically, the identification module 19 is connected to the controller 09 and is used for near-field communication to identify operators. In this example, the identification module 19 can be an RFID identification chip, which is used to detect the identity information of on-site operators. When a non-whitelisted person stays near the distribution box for an extended period of time, a safety signal is uploaded to the controller 09 and an alarm is triggered. Site safety management personnel can then go to the site in real time to confirm and investigate.
[0067] In this embodiment, such as Figure 2As shown, the distribution box also includes a wireless module 20. Specifically, the wireless module 20 is connected to the controller 09 for remote data transmission.
[0068] In this embodiment, such as Figure 2 As shown, the distribution box also includes a display module 21. Specifically, the display module 21 is connected to the controller 09 and is used to display the current power usage status, historical energy consumption data, and equipment operating status. In this example, the display module 21 can be a touch screen, allowing on-site operators to directly adjust the operating parameters of the electrical equipment through the touch screen interface and control the power distribution using manual or automatic modes.
[0069] In this embodiment of the present invention, the circuit diagram of the intelligent power distribution box for temporary power supply at the construction site can also be as follows: Figure 3 , Figure 4 As shown.
[0070] On the other hand, this utility model also provides a smart power supply device for temporary power supply at construction sites, which includes a power supply and a smart distribution box as described above.
[0071] Through the above technical solution, this intelligent distribution box can achieve precise management of temporary power supply at construction sites, significantly improving power safety. Simultaneously, the addition of a universal intelligent monitoring module allows for reuse across various projects and construction sites. Real-time monitoring and data analysis not only effectively reduce accidents but also improve energy efficiency, lower electricity consumption, and promote green construction.
[0072] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0073] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A smart distribution box for temporary power supply at a construction site, characterized in that, include: The incoming cable is used to connect to the mains power supply; An incoming line circuit breaker, the first end of which is connected to the incoming line cable; A current transformer, wherein the first end of the current transformer is connected to the second end of the incoming circuit breaker; A branch circuit breaker, wherein the first terminal of the branch circuit breaker is connected to the second terminal of the current transformer; Outgoing terminal, one end of which is connected to the second end of the branch circuit breaker for connection to the load end; The controller is connected to the incoming circuit breaker, the branch circuit breaker, and the current transformer.
2. The intelligent distribution box according to claim 1, characterized in that, Also includes: The shunt current transformer has its first end connected to the second end of the shunt circuit breaker, its second end connected to the outgoing terminal, and its third end connected to the controller, for real-time acquisition of the current of each circuit.
3. The intelligent distribution box according to claim 1, characterized in that, Also includes: A voltage transformer, one end of which is connected to the third terminal of the incoming circuit breaker, and the other end of which is connected to the controller, for real-time acquisition of the voltage of the main circuit.
4. The intelligent distribution box according to claim 1, characterized in that, Also includes: A temperature sensor, one end of which is connected to the incoming circuit breaker and the other end of which is connected to the controller, is used to collect the temperature of the main circuit in real time.
5. The intelligent distribution box according to claim 1, characterized in that, Also includes: The sensor secondary circuit has a first terminal connected to a voltage transformer, a temperature sensor, a current transformer, and a shunt current transformer, and a second terminal connected to the controller. A signal conditioning module, one end of which is connected to the third end of the secondary circuit of the sensor; The protection module has a first terminal connected to the other terminal of the signal conditioning module, a second terminal connected to the controller, and a third terminal connected to the third terminal of the shunt circuit breaker. A short-circuit reset module, one end of which is connected to the fourth terminal of the protection module, and the other end of which is connected to the controller.
6. The intelligent distribution box according to claim 1, characterized in that, Also includes: An identity recognition module, which is connected to the controller, is used for near-field communication to identify operators.
7. The intelligent distribution box according to claim 1, characterized in that, Also includes: A wireless module, which is connected to the controller.
8. The intelligent distribution box according to claim 1, characterized in that, Also includes: The display module is connected to the controller.
9. A smart power supply device for temporary power supply at construction sites, characterized in that, include: Power supply; The intelligent distribution box as described in any one of claims 1 to 8.