Universal intelligent control cubicle for cable branch box
By introducing thermal imagers into the cable branch box control cabinet and optimizing the busbar arrangement, a full-coverage temperature monitoring system was constructed, which solved the problems of blind spots in temperature monitoring at busbar connection points and dynamic load adjustment, and realized real-time temperature monitoring and intelligent protection functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG ZHONGAN ELECTRIC POWER CONSTR CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-21
AI Technical Summary
Existing cable branch box control cabinets lack the ability to monitor the distributed temperature field of components inside the cabinet. In particular, it is difficult to accurately locate temperature anomalies at bus connection points. Furthermore, the temperature monitoring system is independent of the power distribution control system, making it impossible to achieve real-time dynamic load adjustment.
A comprehensive temperature monitoring system is constructed by using a thermal imager combined with an optimized busbar arrangement scheme. The thermal imager monitors the temperature of the busbar connection points in real time, and the system is combined with intelligent circuit breakers to achieve dynamic load regulation and automatic cooling by fans, thereby achieving rapid heat dissipation and temperature field balance adjustment in areas with abnormal temperatures.
It enables real-time temperature monitoring and anomaly location at busbar connection points, eliminates monitoring blind spots, achieves dynamic load balancing and overload protection, and improves the intelligence and safety of the equipment.
Smart Images

Figure CN224153833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power supply and distribution technology, specifically a universal intelligent control cabinet for cable branch boxes. Background Technology
[0002] The cable branch box control cabinet is a high-voltage combined electrical equipment with a fully sealed gas-insulated metal shell structure. This device integrates core components such as circuit breakers, busbars, and control units into a compact, modular design within a sealed enclosure. Compared to traditional equipment, it has two major technological advantages: firstly, its compact structural design reduces the floor space by more than 40% compared to conventional products, making it particularly suitable for space-constrained scenarios such as urban power grid upgrades; secondly, its prefabricated installation structure requires only overall hoisting and cable connection on-site, significantly improving construction efficiency. This product has been widely used in key nodes such as cable branching and load transfer in 10kV and below distribution networks.
[0003] Current cable distribution box control cabinets have the following drawbacks:
[0004] (1) Lack of distributed temperature field monitoring capability for components inside the cabinet, especially the temperature anomalies in key parts such as bus connection points are difficult to locate accurately.
[0005] (2) The temperature monitoring system and the power distribution control system are independent of each other and cannot realize dynamic load adjustment based on real-time temperature data. Utility Model Content
[0006] In order to solve the technical problems existing in the background art, this utility model provides a universal intelligent control cabinet for cable branch boxes, which can monitor the operating temperature of each component in the cabinet in real time and accurately locate the parts with abnormal temperature.
[0007] The technical solution adopted by this utility model to solve its technical problem is:
[0008] A universal intelligent control cabinet for cable branch boxes includes:
[0009] Cabinet;
[0010] The control device is located at the top of the cabinet;
[0011] The main circuit breaker and the branch circuit breaker are installed inside the cabinet, and both the main circuit breaker and the branch circuit breaker are electrically connected to the control device.
[0012] Busbar assembly, connecting the main circuit breaker and the branch circuit breaker;
[0013] The monitoring component is installed inside the cabinet, and its monitoring area covers the busbar components;
[0014] The monitoring components include:
[0015] The bracket is fixedly connected to the cabinet.
[0016] The first rotating seat is mounted on the bracket and can rotate horizontally.
[0017] The second rotating seat is vertically rotatable and is mounted on the first rotating seat;
[0018] The thermal imager is mounted on the second rotating base and is electrically connected to the control device.
[0019] Furthermore, the busbar assembly includes:
[0020] First horizontal copper busbar;
[0021] The second horizontal copper busbar is located below the first horizontal copper busbar;
[0022] The third horizontal copper busbar is located below the second horizontal copper busbar;
[0023] The first longitudinal copper busbar is connected to the third transverse copper busbar;
[0024] The second longitudinal copper busbar is connected to the second transverse copper busbar, and the second longitudinal copper busbar is located to the right of the first longitudinal copper busbar;
[0025] The third longitudinal copper busbar is connected to the first transverse copper busbar, and the third longitudinal copper busbar is located to the right of the first transverse copper busbar.
[0026] Furthermore, the second horizontal copper busbar is offset towards the rear of the cabinet compared to the first horizontal copper busbar, and the third horizontal copper busbar is offset towards the rear of the cabinet compared to the second horizontal copper busbar.
[0027] Furthermore, the monitoring component is located at the lower left of the cabinet and offset towards the front of the cabinet relative to the busbar component.
[0028] Furthermore, the cabinet is equipped with a fan, which is electrically connected to the control device.
[0029] Furthermore, the fans are located on the left and right sides of the cabinet, and the busbar assembly is located between the fans on both sides.
[0030] Furthermore, both the main circuit breaker and the branch circuit breaker are intelligent circuit breakers.
[0031] The beneficial effects of this utility model are:
[0032] (1) The device is based on thermal imaging technology and can monitor the temperature changes of key parts such as busbar connection points in the cabinet in real time through thermal imager, and accurately locate abnormal heat points.
[0033] (2) By combining the optimized busbar arrangement scheme with the thermal imager layout, a full-coverage temperature monitoring system was constructed, which can achieve temperature tracking of all busbar connections without dead angles and effectively avoid monitoring blind spots caused by structural obstruction.
[0034] (3) When the thermal imager detects an overheated area, it can automatically trigger the fan to cool the inside of the cabinet, and simultaneously achieve rapid heat dissipation in the abnormal temperature area and equalization of the internal temperature field of the cabinet.
[0035] (4) When the thermal imager detects a persistent overheating fault, it will activate the intelligent protection linkage mechanism, and perform precise multi-level power distribution control through the circuit breaker, and simultaneously implement dynamic load balancing and overload protection. Attached Figure Description
[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0037] Figure 1 This is a schematic diagram of the structure of this utility model;
[0038] Figure 2 This is a circuit connection diagram of this utility model;
[0039] Figure 3 This is a schematic diagram of the monitoring component;
[0040] Figure 4 This is a schematic diagram of the busbar assembly.
[0041] In the picture:
[0042] 1. Cabinet, 2. Control device, 3. Main circuit breaker, 4. Busbar assembly, 5. Branch circuit breaker, 6. Monitoring components, 7. Fan;
[0043] 601. Support; 602. First rotating base; 603. Second rotating base; 604. Thermal imager;
[0044] 401. First horizontal copper busbar, 402. Second horizontal copper busbar, 403. Third horizontal copper busbar, 404. First vertical copper busbar, 405. Second vertical copper busbar, 406. Third vertical copper busbar. Detailed Implementation
[0045] The present invention will be further described in detail below with reference to the accompanying drawings.
[0046] like Figure 1 As shown, a universal intelligent control cabinet for cable branch boxes includes a cabinet body 1. A control device 2 is located at the top of the cabinet body 1. A main circuit breaker 3 and a branch circuit breaker 5 are located inside the cabinet body 1. A busbar assembly 4 connects the main circuit breaker 3 and the branch circuit breaker 5. All of the above are existing technologies and are therefore only briefly described.
[0047] Monitoring component 6 is installed inside cabinet 1, and its monitoring area covers busbar assembly 4. Based on thermal imaging technology, this device can monitor temperature changes in key parts such as busbar connection points inside cabinet 1 in real time through thermal imager 604, and accurately locate abnormal heat points.
[0048] like Figure 2 As shown, the main circuit breaker 3 and the branch circuit breaker 5 are intelligent circuit breakers, both electrically connected to the control device 2. The thermal imager 604 is electrically connected to the control device 2. The fan 7 is also electrically connected to the control device 2. The intelligent circuit breaker is existing technology, supporting overload protection, undervoltage and overvoltage protection, and multiple communication protocols, enabling remote opening and closing and status monitoring. When the thermal imager 604 detects a persistent overheating fault, it activates the intelligent protection linkage mechanism, performing precise multi-level power distribution control through the circuit breaker, simultaneously implementing dynamic load balancing and overload protection.
[0049] like Figure 3 As shown, the specific structure of monitoring component 6 includes a bracket 601, which is fixedly connected to the cabinet 1 and to the left side wall of the cabinet 1. A first rotating seat 602 is horizontally rotatable on the bracket 601. A second rotating seat 603 is vertically rotatable on the first rotating seat 602. A thermal imager 604 is mounted on the second rotating seat 603. The rotation angles of both the first rotating seat 602 and the second rotating seat 603 can be locked, thereby adjusting and fixing the orientation of the thermal imager 604, so that the monitoring area of the thermal imager 604 covers the busbar assembly 4.
[0050] like Figure 4 As shown, the busbar assembly 4 includes a first horizontal copper busbar 401. A second horizontal copper busbar 402 is located below the first horizontal copper busbar 401. A third horizontal copper busbar 403 is located below the second horizontal copper busbar 402. A first vertical copper busbar 404 is connected to the third horizontal copper busbar 403. A second vertical copper busbar 405 is connected to the second horizontal copper busbar 402, and the second vertical copper busbar 405 is located to the right of the first vertical copper busbar 404. A third vertical copper busbar 406 is connected to the first horizontal copper busbar 401, and the third vertical copper busbar 406 is located to the right of the first horizontal copper busbar 401. The second horizontal copper busbar 402 is offset towards the rear of the cabinet 1 relative to the first horizontal copper busbar 401, and the third horizontal copper busbar 403 is offset towards the rear of the cabinet 1 relative to the second horizontal copper busbar 402. The monitoring assembly 6 is located at the lower left of the cabinet 1 and is offset towards the front of the cabinet 1 relative to the busbar assembly 4.
[0051] The busbar assembly 4 adopts a stepped, stacked distribution structure, arranged in a gradient from the lower left to the upper right along the diagonal of the cabinet. The thermal imager 604 is located at the lower left of the cabinet 1, offset towards the front of the cabinet 1 relative to the busbar assembly 4. This structure ensures that the portion of the busbar assembly 4 closest to the thermal imager 604 does not obstruct the portion further away from the thermal imager 604. This three-dimensional asymmetrical layout optimizes the relative spatial parameters between the busbar assembly 4 and the thermal imaging device 604, achieving panoramic monitoring of the connection points. It creates a staggered observation angle between the spatial arrangement of the near-end busbar connection points and the far-end connection points, completely eliminating the visual obstruction effect caused by traditional stacked structures and ensuring effective monitoring of the far-end connection points by the thermal imager 604.
[0052] The optimized arrangement of busbar assembly 4, combined with the layout of thermal imager 604, constructs a full-coverage temperature monitoring system that can track the temperature of all busbar connections without blind spots, effectively avoiding monitoring blind spots caused by structural obstruction.
[0053] The cabinet 1 is equipped with fans 7. The fans 7 are located on the left and right sides of the cabinet 1, and the bus assembly 4 is located between the fans 7 on both sides. When the thermal imager 604 detects an overheated spot, it can automatically trigger the fans 7 to cool down the inside of the cabinet 1, and simultaneously achieve rapid heat dissipation in areas with abnormal temperatures and equalize the temperature field inside the cabinet 1.
[0054] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A universal intelligent distribution cabinet for cable branch boxes, characterized in that, It comprises: a cabinet body (1); a control device (2) arranged at the upper end of the cabinet body (1); a main breaker (3) and a branch breaker (5) arranged in the cabinet body (1), both of which are electrically connected with the control device (2); a busbar assembly (4) connecting the main breaker (3) and the branch breaker (5); a monitoring assembly (6) arranged in the cabinet body (1), the monitoring area of the monitoring assembly (6) covering the busbar assembly (4); the monitoring assembly (6) comprises: a bracket (601) fixedly connected with the cabinet body (1); a first rotating seat (602) horizontally rotatably arranged on the bracket (601); a second rotating seat (603) vertically rotatably arranged on the first rotating seat (602); a thermal imager (604) arranged on the second rotating seat (603), the thermal imager (604) being electrically connected with the control device (2).
2. The general intelligent control cabinet for cable branch boxes according to claim 1, wherein the busbar assembly (4) comprises: a first horizontal copper bar (401); a second horizontal copper bar (402) arranged below the first horizontal copper bar (401); a third horizontal copper bar (403) arranged below the second horizontal copper bar (402); a first vertical copper bar (404) connected with the third horizontal copper bar (403); a second vertical copper bar (405) connected with the second horizontal copper bar (402), the second vertical copper bar (405) being located on the right side of the first vertical copper bar (404); a third vertical copper bar (406) connected with the first horizontal copper bar (401), the third vertical copper bar (406) being located on the right side of the first horizontal copper bar (401).
3. The general intelligent control cabinet for cable branch boxes according to claim 2, wherein the second horizontal copper bar (402) is offset to the back of the cabinet body (1) compared with the first horizontal copper bar (401), and the third horizontal copper bar (403) is offset to the back of the cabinet body (1) compared with the second horizontal copper bar (402).
4. The general intelligent control cabinet for cable branch boxes according to claim 3, wherein the monitoring assembly (6) is arranged at the lower left of the cabinet body (1) and is offset to the front of the cabinet body (1) compared with the busbar assembly (4).
5. The general intelligent control cabinet for cable branch boxes according to claim 1, wherein the cabinet body (1) is provided with a fan (7), and the fan (7) is electrically connected with the control device (2).
6. The general intelligent control cabinet for cable branch boxes according to claim 5, wherein the fan (7) is arranged on the left and right sides of the cabinet body (1), and the busbar assembly (4) is located between the two fans (7).
7. The general intelligent control cabinet for cable branch boxes according to claim 1, wherein the main breaker (3) and the branch breaker (5) are intelligent breakers.