Bus duct with distributed fault arc detection

By introducing a current-driven rotating system and powder color change detection into the busbar trunking, the problem of real-time monitoring of electric arcs in the busbar trunking was solved, enabling distributed detection and convenient maintenance of electric arcs.

CN121149918APending Publication Date: 2025-12-16EATON BUSWAY (JIANGSU) CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202511176618.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

Without 24-hour monitoring, existing busbar trunking arcs cannot be detected in time, making it impossible to know when an arc occurred, and it is also impossible to determine whether an arc occurred afterward.

Method used

A busbar trunking system with distributed fault arc detection was designed. The current generated by the arc drives the motor to start, which in turn drives the rotating mounting shaft and bevel gear system. This allows powder to enter the observation cylinder from the storage box and mix with water. The color change indicates the arc status, making it convenient for staff to detect.

Benefits of technology

It enables real-time detection of electric arcs, determines the severity of the arc by the color change of powder and water, and has a detachable structure for easy maintenance, ensuring the continuous effectiveness of arc detection.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121149918A_ABST
    Figure CN121149918A_ABST
Patent Text Reader

Abstract

The invention provides a bus duct with distributed fault arc detection, and relates to the technical field of bus ducts. The bus duct with the distributed fault arc detection function comprises a bus duct shell, a bus bar is installed in the bus duct shell, the two sides of the bottom of the bus duct shell are each detachably connected with two underneath mounting plates, and the surfaces of the underneath mounting plates are fixedly connected with feeding mounting pipelines in a penetrating mode; and the bottom of the feeding mounting pipeline is connected with an observation assembly. According to the powder storage device, when the powder storage opening is aligned to the discharging opening in the bottom of the powder storage box body, powder enters the powder storage opening, when the powder storage opening rotates to be aligned to the feeding installation pipeline, the powder enters the observation barrel through the feeding installation pipeline, and the powder and clear water are mixed to change color; a worker can know that an electric arc is generated before when seeing the color change of clear water, the deeper the color change degree is, the more serious the electric arc generation condition is, and the electric arc can be effectively detected.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bus duct, in particular to a bus duct with distributed fault arc detection. BACKGROUND

[0002] A bus duct is a device used in power systems, mainly for transmitting and distributing electric energy. It is usually made of metal, with high heat resistance and corrosion resistance, capable of withstanding high voltage and high temperature environments. Inside the bus duct, there are multiple conductive channels, each of which can transmit a certain amount of electric energy. These channels are separated by partitions to ensure the efficiency and safety of electric energy transmission. The role of the bus duct is to transmit electric energy from power plants or substations to various electrical equipment, and at the same time, distribute the required electric energy of each electrical equipment to its own conductive channel. The bus duct can also control the transmission and distribution of electric energy through control and protection devices to ensure the stable operation of the power system. In addition, the bus duct can be connected to various types of electrical equipment through different connection methods, such as threaded connection, flange connection, etc., to meet different use requirements. In summary, the bus duct is an indispensable device in the power system, which can effectively transmit and distribute electric energy to ensure the stable operation of the power system.

[0003] The generation of electric arc in the bus duct can cause many serious hazards. The huge energy released by the electric arc can cause an instantaneous rise in pressure and temperature. After the electric arc is generated, the gas in contact with it is immediately hydrolyzed, generating highly energetic combustible pressure and high temperature. If the electric arc is not removed in time, it will cause damage to electrical equipment and workers, and may even trigger a "chain reaction", which may develop into a power transmission network failure, or even cause a complete failure of the power supply system.

[0004] Patent No. CN221947832U provides a bus duct that can detect the generation of electric arc, belonging to the technical field of bus ducts that can detect the generation of electric arc. The bus duct that can detect the generation of electric arc has a bulb, a gravity sensor, an alarm, a housing, an electromagnet, and a magnet. The electromagnet is arranged inside the housing, and the electromagnet is fixedly connected with the lower wall of the housing. The electromagnet is used to generate a magnetic field under the power supply of the electric arc on the side wall of the bus. The magnet is arranged above the electromagnet, and the magnet is connected with the electromagnet through a spring. Each section of bus is provided with a set of bulbs, gravity sensors, alarms, electromagnets, and magnets. It is used to detect the electric arc generated by each section of bus. It can solve the problem that the connection points in the bus duct system are prone to loose or corrosion, leading to poor contact, increasing the risk of electric arc generation, and causing fires and safety accidents.

[0005] However, since the arc generated by some bus duct is not long time, when the generated arc is extinguished, no current is generated, so the alarm and the bulb in the above patent are not continuously working, but only work when the arc is generated, however, the bus duct will not have staff watching for 24 hours, so it may not be known when the arc is generated, and the staff cannot know whether the arc has occurred afterwards. SUMMARY

[0006] (I) Technical problems solved

[0007] In view of the defects of the prior art, the bus duct with distributed fault arc detection is provided, which solves the problem that the bus duct will not have staff watching for 24 hours, so it may not be known when the arc is generated, and the staff cannot know whether the arc has occurred afterwards.

[0008] (II) Technical solutions

[0009] In order to achieve the above purpose, the following technical solutions are adopted: a bus duct with distributed fault arc detection, comprising a bus duct shell, a bus bar is installed in the inside of the bus duct shell, two lower installation plates are detachably connected to the bottom of the bus duct shell on both sides, a feeding installation pipeline is fixedly connected through the surface of the lower installation plate, an observation assembly is connected to the bottom of the feeding installation pipeline, a powder transfer hollow disc is fixedly connected to the top of the feeding installation pipeline, a first rotating installation shaft is rotatably connected in the inside of the powder transfer hollow disc, a transfer rotating disc is fixedly connected to the outer surface of the first rotating installation shaft, the transfer rotating disc is attached to the inner wall of the powder transfer hollow disc, a plurality of powder storage openings are formed in the outer surface of the transfer rotating disc, the powder storage openings correspond to the top end of the feeding installation pipeline, a powder supply assembly is installed on the top of the powder transfer hollow disc, a protection fixed shell is fixedly connected to one side of the powder transfer hollow disc, a second rotating installation shaft is rotatably connected to the top of the protection fixed shell, a linkage assembly is arranged between the second rotating installation shaft and the first rotating installation shaft, two L-shaped installation racks are detachably connected to the two sides of the bus duct shell, a power assembly for driving the second rotating installation shaft to rotate is installed on the inner top of the L-shaped installation rack.

[0010] Preferably, a first installation hole is formed through the surface of the lower installation plate, a first bolt is arranged in the inside of the first installation hole, the first bolt is threadedly connected to the bottom of the bus duct shell, and a first screw hole matched with the first bolt is formed in the bottom of the bus duct shell.

[0011] Preferably, the observation assembly comprises a connecting installation cover fixedly connected at the bottom of the feeding installation pipeline, the feeding installation pipeline is in communication with the connecting installation cover, the inner wall of the connecting installation cover is threadedly connected with an observation cylinder body, the inside of the observation cylinder body is provided with clean water, and the observation cylinder body is made of transparent material, which facilitates the observation of workers.

[0012] Preferably, the powder supply assembly comprises a powder storage box body fixedly connected at the top of the powder transfer hollow disc, a box cover is placed at the top of the powder storage box body, a discharging port is formed at the bottom of the powder storage box body, the discharging port corresponds to the powder storage port, the bottom end of the feeding installation pipeline is in communication with the bottom of the powder transfer hollow disc, the bottom end of the powder storage box body is in communication with the top of the powder transfer hollow disc, when the powder storage port is aligned with the discharging port at the bottom of the powder storage box body, the powder enters the powder storage port, and when the powder storage port is rotated to be aligned with the feeding installation pipeline, the powder enters the observation cylinder body through the feeding installation pipeline.

[0013] Preferably, the linkage assembly comprises a first connecting shaft fixedly connected with the end portion of the second rotating installation shaft, a second bevel gear is fixedly connected to one end of the first connecting shaft away from the second rotating installation shaft, a second connecting shaft is fixedly connected to the end portion of the first rotating installation shaft, a first bevel gear is fixedly connected to one end of the second connecting shaft away from the first rotating installation shaft, and the first bevel gear is in meshing connection with the second bevel gear.

[0014] Preferably, the side wall of the L-shaped mounting frame is throughly provided with a second mounting hole, a second bolt is arranged in the second mounting hole, the second bolt is threadedly connected with the side wall of the bus duct shell, and the side wall of the bus duct shell is provided with a second screw hole matched with the second bolt, so that the L-shaped mounting frame can be disassembled.

[0015] Preferably, the power assembly comprises a driving motor fixedly connected to the inner top of the L-shaped mounting frame, a third rotating installation shaft is fixedly connected to the output shaft of the driving motor, a clamping protrusion is fixedly connected to one end of the third rotating installation shaft away from the driving motor, a clamping groove is formed at the top end of the second rotating installation shaft, and the clamping protrusion is clamped in the clamping groove.

[0016] Preferably, the driving motor is connected with the bus bar through wires, and the cross section of the clamping protrusion is rectangular.

[0017] (Three) beneficial effects

[0018] The bus duct with distributed fault arc detection provided by the application has the following beneficial effects:

[0019] 1、The application, when there is an arc, the current generated powers the drive motor, the drive motor starts, the drive motor rotates with the third rotating mounting shaft, the third rotating mounting shaft rotates with the second rotating mounting shaft through the clamping protrusion, the second rotating mounting shaft rotates with the second bevel gear, the second bevel gear rotates with the first bevel gear, the first bevel gear rotates with the first rotating mounting shaft through the second connecting shaft, the first rotating mounting shaft rotates with the rotating disc, when the powder storage port is aligned with the discharge port at the bottom of the powder storage box, the powder enters the powder storage port, when the powder storage port is rotated to be aligned with the feeding installation pipeline, the powder enters the observation cylinder through the feeding installation pipeline, the powder and the clear water are mixed to change color, the worker can know that there is an arc before seeing the clear water change color, the deeper the color change, the more serious the arc generation, and the arc can be effectively detected.

[0020] 2、The application, since the lower installation plate is detachably connected with the bus duct shell, the L-shaped mounting frame is also detachably connected with the bus duct shell, and the third rotating mounting shaft and the second rotating mounting shaft are separable, so that the lower installation plate and the L-shaped mounting frame can be taken off from the bus duct shell, the overall structure is convenient to maintain, the observation cylinder can be taken off spirally, the clear water is replaced, and the fault arc is continuously detected. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A first perspective three-dimensional structural schematic view of the bus duct with distributed fault arc detection provided by the application is provided.

[0022] Figure 2 A second perspective three-dimensional structural schematic view of the bus duct with distributed fault arc detection provided by the application is provided.

[0023] Figure 3 A top view of the bus duct with distributed fault arc detection provided by the application is provided.

[0024] Figure 4 A side view of the bus duct with distributed fault arc detection provided by the application is provided.

[0025] Figure 5 An observation cylinder structure schematic view of the bus duct with distributed fault arc detection provided by the application is provided.

[0026] Figure 6 A partial structure sectional view of the bus duct with distributed fault arc detection provided by the application is provided.

[0027] The components include: 1. Busbar housing; 2. Busbar bar; 3. Lower mounting plate; 4. Feeding pipe; 5. Connecting mounting cover; 6. Observation cylinder; 7. Powder transfer hollow disc; 8. First rotating mounting shaft; 9. Transfer rotating disc; 10. Powder storage port; 11. Powder storage box; 12. Protective fixing housing; 13. First bevel gear; 14. Second rotating mounting shaft; 15. Second bevel gear; 16. L-shaped mounting bracket; 17. Drive motor; 18. Third rotating mounting shaft; 19. Snap-fit ​​protrusion. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example:

[0030] like Figures 1-6 As shown, this embodiment of the invention provides a busbar trunking with distributed fault arc detection, including a busbar trunking housing 1, a busbar 2 installed inside the busbar trunking housing 1, two lower mounting plates 3 detachably connected to each side of the bottom of the busbar trunking housing 1, a first mounting hole through the surface of the lower mounting plate 3, a first bolt inside the first mounting hole, the first bolt being threadedly connected to the bottom of the busbar trunking housing 1, and a first screw hole adapted to the first bolt being opened at the bottom of the busbar trunking housing 1;

[0031] A feeding installation pipe 4 is fixedly connected through the surface of the lower mounting plate 3. An observation component is connected to the bottom of the feeding installation pipe 4. The observation component includes a connecting installation cover 5 fixedly connected to the bottom of the feeding installation pipe 4. The feeding installation pipe 4 is connected to the connecting installation cover 5. An observation cylinder 6 is threadedly connected to the inner wall of the connecting installation cover 5. The observation cylinder 6 is filled with clean water and is made of transparent material.

[0032] The top of the feeding installation pipeline 4 is fixedly connected with a powder transfer hollow disc 7, the inside of the powder transfer hollow disc 7 is rotatably connected with a first rotary installation shaft 8, the outer surface of the first rotary installation shaft 8 is fixedly connected with a transfer rotary disc 9, the transfer rotary disc 9 is attached to the inner wall of the powder transfer hollow disc 7, a plurality of powder storage ports 10 are formed in the outer surface of the transfer rotary disc 9, the powder storage ports 10 correspond to the top end of the feeding installation pipeline 4, a powder supply assembly is installed on the top of the powder transfer hollow disc 7, the powder supply assembly comprises a powder storage box body 11 fixedly connected to the top of the powder transfer hollow disc 7, a box cover is placed on the top of the powder storage box body 11, a discharging port is formed in the bottom of the powder storage box body 11, the discharging port corresponds to the powder storage port 10, the bottom end of the feeding installation pipeline 4 is in communication with the bottom of the powder transfer hollow disc 7, the bottom end of the powder storage box body 11 is in communication with the top of the powder transfer hollow disc 7, pigment powder is added in the powder storage box body 11, the pigment powder changes color when meeting clean water, when the powder storage port 10 is aligned with the discharging port in the bottom of the powder storage box body 11, the powder enters the powder storage port 10, when the powder storage port 10 is rotated to be aligned with the feeding installation pipeline 4, the powder enters the observation cylinder 6 through the feeding installation pipeline 4;

[0033] A protective fixed shell 12 is fixedly connected to one side of the powder transfer hollow disc 7, a second rotary installation shaft 14 is rotatably connected to the top of the protective fixed shell 12, a linkage assembly is arranged between the second rotary installation shaft 14 and the first rotary installation shaft 8, the linkage assembly comprises a first connecting shaft fixedly connected to the end of the second rotary installation shaft 14, a second bevel gear 15 is fixedly connected to the end of the first connecting shaft away from the second rotary installation shaft 14, a second connecting shaft is fixedly connected to the end of the first rotary installation shaft 8, a first bevel gear 13 is fixedly connected to the end of the second connecting shaft away from the first rotary installation shaft 8, the first bevel gear 13 is meshingly connected with the second bevel gear 15, the second rotary installation shaft 14 rotates with the second bevel gear 15, the second bevel gear 15 rotates with the first bevel gear 13, the first bevel gear 13 rotates with the first rotary installation shaft 8 through the second connecting shaft;

[0034] Two L-shaped installation racks 16 are detachably connected to the two sides of the bus duct shell 1, a second installation hole is formed in the side wall of the L-shaped installation rack 16, a second bolt is arranged in the second installation hole, the second bolt is threadedly connected with the side wall of the bus duct shell 1, a second screw hole is formed in the side wall of the bus duct shell 1 and matches the second bolt, so that the L-shaped installation rack 16 can be detached;

[0035] The inner top of the L-shaped mounting frame 16 is provided with a power assembly for driving the second rotating mounting shaft 14 to rotate, which comprises a driving motor 17 fixedly connected to the inner top of the L-shaped mounting frame 16, an output shaft of the driving motor 17 is fixedly connected with a third rotating mounting shaft 18, one end of the third rotating mounting shaft 18 away from the driving motor 17 is fixedly connected with a clamping protrusion 19, the top end of the second rotating mounting shaft 14 is provided with a clamping groove, and the clamping protrusion 19 is clamped in the clamping groove. The driving motor 17 is connected with the busbar row 2 through wires, the cross section of the clamping protrusion 19 is rectangular, the driving motor 17 is started, the driving motor 17 drives the third rotating mounting shaft 18 to rotate, the third rotating mounting shaft 18 drives the second rotating mounting shaft 14 to rotate through the clamping protrusion 19, the second rotating mounting shaft 14 drives the second bevel gear 15 to rotate, the second bevel gear 15 drives the first bevel gear 13 to rotate, the first bevel gear 13 drives the first rotating mounting shaft 8 to rotate through the second connecting shaft, and the first rotating mounting shaft 8 drives the transfer rotating disc 9 to rotate.

[0036] Working principle:

[0037] In use, when an electric arc is generated, the generated current is supplied to the driving motor 17 to start the driving motor 17, the driving motor 17 drives the third rotating mounting shaft 18 to rotate, the third rotating mounting shaft 18 drives the second rotating mounting shaft 14 to rotate through the clamping protrusion 19, the second rotating mounting shaft 14 drives the second bevel gear 15 to rotate, the second bevel gear 15 drives the first bevel gear 13 to rotate, the first bevel gear 13 drives the first rotating mounting shaft 8 to rotate through the second connecting shaft, and the first rotating mounting shaft 8 drives the transfer rotating disc 9 to rotate. When the powder storage port 10 is aligned with the discharging port at the bottom of the powder storage box body 11, the powder enters the powder storage port 10, and when the powder storage port 10 is rotated to be aligned with the feeding installation pipeline 4, the powder enters the observation cylinder body 6 through the feeding installation pipeline 4, and the powder is mixed with clean water to change color.

[0038] Since the lower mounting plate 3 is detachably connected with the busbar slot shell 1, the L-shaped mounting frame 16 is also detachably connected with the busbar slot shell 1, and the third rotating mounting shaft 18 and the second rotating mounting shaft 14 are separable, so that the lower mounting plate 3 and the L-shaped mounting frame 16 can be taken off from the busbar slot shell 1, and the overall structure is convenient to maintain. The observation cylinder body 6 can be taken off spirally, clean water can be replaced, and the detection of the fault electric arc can be continued.

[0039] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it should be taken in a descriptive sense and not a limiting sense.

[0040] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations can be made to the embodiments of the application without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A bus trunking system with distributed fault arc detection, comprising a bus trunking housing (1), characterized in that: The busbar housing (1) is equipped with a busbar (2) inside. Two lower mounting plates (3) are detachably connected to each side of the bottom of the busbar housing (1). A feed installation pipe (4) is fixedly connected through the surface of each lower mounting plate (3). An observation component is connected to the bottom of the feed installation pipe (4). A powder transfer hollow disc (7) is fixedly connected to the top of the feed installation pipe (4). A first rotating mounting shaft (8) is rotatably connected inside the powder transfer hollow disc (7). A transfer rotating disc (9) is fixedly connected to the outer surface of the first rotating mounting shaft (8). The transfer rotating disc (9) is in contact with the inner wall of the powder transfer hollow disc (7). The outer surface of the device has multiple powder storage ports (10), which correspond to the top of the feed installation pipe (4). A powder supply component is installed on the top of the powder transfer hollow disk (7). A protective fixing shell (12) is fixedly connected to one side of the powder transfer hollow disk (7). A second rotating mounting shaft (14) is rotatably connected to the top of the protective fixing shell (12). A linkage component is provided between the second rotating mounting shaft (14) and the first rotating mounting shaft (8). Two L-shaped mounting brackets (16) are detachably connected to each side of the busbar housing (1). A power component for driving the second rotating mounting shaft (14) to rotate is installed on the inner top of the L-shaped mounting bracket (16).

2. A busbar trunking system with distributed fault arc detection according to claim 1, characterized in that: The surface of the lower mounting plate (3) is provided with a first mounting hole, and a first bolt is provided inside the first mounting hole. The first bolt is threaded to the bottom of the busbar housing (1), and a first screw hole adapted to the first bolt is provided at the bottom of the busbar housing (1).

3. A busbar trunking system with distributed fault arc detection according to claim 1, characterized in that: The observation assembly includes a connecting cover (5) fixedly connected to the bottom of the feed installation pipe (4). The feed installation pipe (4) is connected to the connecting cover (5). The inner wall of the connecting cover (5) is threaded with an observation cylinder (6). The observation cylinder (6) is filled with clean water and is made of transparent material.

4. A busbar trunking system with distributed fault arc detection according to claim 1, characterized in that: The powder supply assembly includes a powder storage box (11) fixedly connected to the top of the powder transfer hollow disc (7). The top of the powder storage box (11) is covered with a box cover. The bottom of the powder storage box (11) is provided with a discharge port, which corresponds to the powder storage port (10). The bottom end of the feeding installation pipe (4) is connected to the bottom of the powder transfer hollow disc (7), and the bottom end of the powder storage box (11) is connected to the top of the powder transfer hollow disc (7).

5. A busbar trunking system with distributed fault arc detection according to claim 1, characterized in that: The linkage assembly includes a first connecting shaft fixedly connected to the end of the second rotating mounting shaft (14), a second bevel gear (15) fixedly connected to the end of the first connecting shaft away from the second rotating mounting shaft (14), a second connecting shaft fixedly connected to the end of the first rotating mounting shaft (8), a first bevel gear (13) fixedly connected to the end of the second connecting shaft away from the first rotating mounting shaft (8), and the first bevel gear (13) meshing with the second bevel gear (15).

6. A busbar trunking system with distributed fault arc detection according to claim 1, characterized in that: The L-shaped mounting bracket (16) has a second mounting hole through its side wall. A second bolt is installed inside the second mounting hole. The second bolt is threaded to the side wall of the busbar housing (1). The side wall of the busbar housing (1) has a second threaded hole that matches the second bolt.

7. A busbar trunking system with distributed fault arc detection according to claim 1, characterized in that: The power assembly includes a drive motor (17) fixedly connected to the top of the L-shaped mounting bracket (16). The output shaft of the drive motor (17) is fixedly connected to a third rotary mounting shaft (18). A snap-fit ​​protrusion (19) is fixedly connected to one end of the third rotary mounting shaft (18) away from the drive motor (17). A snap-fit ​​groove is provided at the top end of the second rotary mounting shaft (14), and the snap-fit ​​protrusion (19) snaps into the inside of the snap-fit ​​groove.

8. A busbar trunking system with distributed fault arc detection according to claim 7, characterized in that: The drive motor (17) is connected to the busbar (2) via a wire, and the cross-sectional shape of the snap-fit ​​protrusion (19) is rectangular.

Citation Information

Patent Citations

  • Bus duct capable of detecting arc generation

    CN221947832U