KFM air-type enclosed bus duct

By using insulating and flame-retardant partitions in the design of air-insulated busbar trunking, the chimney effect problem between conductive copper busbars is solved, thereby reducing fire hazards, improving heat dissipation, and enhancing safety.

CN223502526UActive Publication Date: 2025-10-31WUXI SUZHONG ELECTRIC CO LTD
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Patent Information

Application Number
CN202422849415.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-10-31
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

The existing air-supported busbar trunking has gaps between the conductive copper bars, which can create a chimney effect during a fire, increasing the severity of the fire and making it more difficult to extinguish.

Method used

Insulating partitions are used to separate multiple sets of conductive copper busbars at both ends of the outer slot plate, and a flame-retardant partition is sleeved in the middle of the outer slot plate to form a closed flame-retardant partition. At the same time, it is connected to the outside through heat dissipation holes and heat dissipation grooves. The setting of heat dissipation holes and heat dissipation grooves enhances the heat dissipation effect and prevents foreign objects from entering.

Benefits of technology

It effectively avoids the chimney effect, reduces the severity of fires and the difficulty of firefighting, while improving heat dissipation and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a KFM air-type closed bus duct, which relates to the technical field of bus ducts and comprises an outer duct plate, the inner wall of the outer duct plate is movably connected with a top cover plate, the inner walls of the two ends of the outer duct plate are fixedly connected with insulating partition plates, conductive copper bars are arranged in the outer duct plate, the number of the insulating partition plates is four, and the top cover plate is fixedly connected with the top cover plate. Wherein two insulating partition plates are respectively clamped with the outer wall of one end of each conductive copper bar, and the other two insulating partition plates are clamped with the outer wall of the other end of each conductive copper bar. And meanwhile, the flame-retardant partition plate is sleeved on the outer wall of the conductive copper bar in the middle of the outer groove plate, so that a closed flame-retardant partition is formed in the outer groove plate, the chimney effect caused by internal fire is effectively avoided, the fire is prevented from spreading, and the hazard degree of the fire and the fire fighting difficulty are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of busbar technology, and in particular to a KFM air-sealed busbar. Background Technology

[0002] With the continuous development of industrial production and the acceleration of urbanization, the demand for electricity is increasing day by day. In large industrial plants, high-rise buildings, commercial centers and other places, there is a need for power distribution equipment that can efficiently and reliably transmit large amounts of electrical energy. Traditional cable laying methods have problems such as complex wiring, large space occupation and difficult maintenance when facing the power transmission demand of high current and high load, and cannot meet the power demand of these places. Air busbar trunking has the advantages of large power transmission capacity and strong current carrying capacity, and can well adapt to the trend of increasing power demand, so it has been widely used.

[0003] However, in the existing technology, there are certain gaps between the conductive copper bars in the existing air busbar trunking. When a fire occurs inside, due to its structural characteristics, a chimney effect will be generated, which will accelerate the rise of hot air and the spread of fire, increasing the severity of the fire and the difficulty of fighting it. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in existing air-sealed busbar trunking, the gaps between the conductive copper bars cause a chimney effect when a fire occurs, accelerating the rise of hot air and the spread of fire, thus increasing the severity of the fire and the difficulty of extinguishing it. Therefore, this invention proposes a KFM air-sealed enclosed busbar trunking.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a KFM air-sealed busbar trunking, comprising an outer trunking plate, a top cover plate movably connected to the inner wall of the outer trunking plate, insulating partitions fixedly connected to the inner walls at both ends of the outer trunking plate, a conductive copper busbar disposed inside the outer trunking plate, and four insulating partitions, two of which are respectively snapped into one end of the outer wall of the conductive copper busbar, and the other two of which are snapped into the other end of the outer wall of the conductive copper busbar, a flame-retardant partition fixedly connected to the middle inner wall of the outer trunking plate, and a connecting groove penetrating through the outer wall of the flame-retardant partition, the flame-retardant partition being sleeved on the outer wall of the conductive copper busbar through the connecting groove.

[0006] Preferably, the top surface of the top cover plate is provided with a heat conduction groove, and a heat sink is fixedly connected to the inner wall of the heat conduction groove.

[0007] Preferably, the inner walls of the outer groove plate are provided with limiting guide grooves on both sides, and the outer walls of the top cover plate are fixedly connected with insert plates, which are movably connected to the inner walls of the limiting guide grooves.

[0008] Preferably, the top surface of the outer groove plate is threaded with a bolt, and the bottom end of the bolt penetrates the inner wall of the limiting guide groove and presses against the top surface of the insert plate.

[0009] Preferably, both ends of the outer groove plate are fixedly connected to connecting plates, and the outer wall of the connecting plate is provided with mounting holes.

[0010] Preferably, the outer wall of the outer slot plate is provided with a heat dissipation groove, the inner wall of the heat dissipation groove is provided with a heat dissipation hole, and the interior of the heat dissipation groove is connected to the interior of the outer slot plate through the heat dissipation hole.

[0011] Preferably, the outer walls at both ends of the conductive copper busbar are provided with connection holes.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by using insulating partitions to separate multiple sets of conductive copper busbars at both ends of the outer groove plate, the ends are kept connected to the outside air. At the same time, flame-retardant partitions are used to fit over the outer wall of the conductive copper busbars in the middle of the outer groove plate, so that the interior of the outer groove plate forms a closed flame-retardant partition, which effectively avoids the chimney effect caused by internal fire, prevents the spread of fire, and reduces the degree of fire damage and the difficulty of firefighting.

[0014] 2. In this utility model, the space created by the heat dissipation holes and heat dissipation grooves inside the outer groove plate, which is separated by the flame-retardant partition, is connected to the outside through the heat dissipation holes and heat dissipation grooves. This allows the hot air generated inside to be effectively dissipated and flowed out, improving the heat dissipation effect of this utility model. Furthermore, the heat dissipation grooves provide a certain degree of shielding to the outside of the heat dissipation holes, effectively preventing foreign objects from entering and improving the safety of this utility model in use. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a KFM air-sealed busbar trunking is provided for this utility model;

[0016] Figure 2 This utility model proposes a KFM air-sealed busbar trunking. Figure 1 Enlarged view of the structure at point A in the middle;

[0017] Figure 3 This utility model provides a schematic diagram of the internal structure of a KFM air-sealed busbar trunking.

[0018] Figure 4 This utility model presents a schematic diagram of the internal structure of a KFM air-sealed busbar cooling trough.

[0019] Legend: 1. Outer groove plate; 11. Heat dissipation groove; 12. Connecting plate; 13. Limiting guide groove; 14. Bolt; 15. Heat dissipation hole; 16. Mounting hole; 2. Top cover plate; 21. Heat conduction groove; 22. Heat sink; 23. Insert plate; 3. Conductive copper busbar; 31. Connecting hole; 4. Insulating partition; 5. Flame retardant partition; 51. Connecting groove. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a KFM air-sealed busbar trunking, including an outer trunking plate 1, a top cover plate 2 movably connected to the inner wall of the outer trunking plate 1, insulating partitions 4 fixedly connected to the inner walls of both ends of the outer trunking plate 1, a conductive copper busbar 3 disposed inside the outer trunking plate 1, and four insulating partitions 4 disposed therein, two of which are respectively snapped into one end of the outer wall of the conductive copper busbar 3, and the other two insulating partitions 4 are snapped into the other end of the outer wall of the conductive copper busbar 3, a flame-retardant partition 5 fixedly connected to the inner wall of the middle part of the outer trunking plate 1, and a connecting groove 51 penetrating through the outer wall of the flame-retardant partition 5, the flame-retardant partition 5 being sleeved on the outer wall of the conductive copper busbar 3 through the connecting groove 51.

[0023] The specific setup and function of this embodiment are described below. By using insulating partitions 4 to separate multiple sets of conductive copper busbars 3 at both ends of the outer groove plate 1, the ends are kept connected to the outside air. At the same time, flame-retardant partitions 5 are used to fit over the outer wall of the conductive copper busbars 3 in the middle of the outer groove plate 1, so that the interior of the outer groove plate 1 forms a closed flame-retardant partition, which effectively avoids the chimney effect caused by internal fire, prevents the spread of fire, and reduces the degree of fire damage and the difficulty of firefighting.

[0024] Example 2: Figure 1 - Figure 4As shown, a heat-conducting groove 21 is provided on the top surface of the top cover plate 2. A heat sink 22 is fixedly connected to the inner wall of the heat-conducting groove 21. Multiple heat sinks 22 are provided. Limiting guide grooves 13 are provided on both sides of the inner wall of the outer groove plate 1. Insert plates 23 are fixedly connected to both sides of the outer wall of the top cover plate 2. The insert plates 23 are movably connected to the inner wall of the limiting guide grooves 13. A bolt 14 is threaded through the top surface of the outer groove plate 1. The bottom end of the bolt 14 passes through the inner wall of the limiting guide groove 13 and presses against the top surface of the insert plate 23. A connecting plate 12 is fixedly connected to both ends of the outer groove plate 1. An installation hole 16 is provided through the outer wall of the connecting plate 12. A heat dissipation groove 11 is provided on the outer wall of the outer groove plate 1. A heat dissipation hole 15 is provided through the inner wall of the heat dissipation groove 11. The interior of the heat dissipation groove 11 is connected to the interior of the outer groove plate 1 through the heat dissipation hole 15. A connecting hole 31 is provided through the outer wall of both ends of the conductive copper busbar 3.

[0025] The overall effect of this embodiment is that, through the setting of the heat sink 22, the contact between the surface of the present invention and the air is enhanced, and the air convection is strengthened, which is conducive to better heat dissipation inside the present invention. Through the connection between the insert plate 23 and the limiting guide groove 13, the top cover plate 2 and the outer groove plate 1 of the present invention can be easily disassembled and assembled, which facilitates subsequent maintenance operations. Through the setting of the heat dissipation hole 15 and the heat dissipation groove 11, the space created by the flame-retardant partition plate 5 in the outer groove plate 1 is connected to the outside through the heat dissipation hole 15 and the heat dissipation groove 11, thereby allowing the hot air generated inside to be effectively dissipated and flowed, improving the heat dissipation effect of the present invention. Furthermore, through the setting of the heat dissipation groove 11, the outside of the heat dissipation hole 15 is shielded to a certain extent, effectively preventing the entry of external foreign objects and improving the safety of the present invention in use.

[0026] The usage and working principle of this device are as follows: During use, the user connects and fixes the device via the connecting plate 12 and mounting holes 16. Insulating partitions 4 separate multiple sets of conductive copper busbars 3 at both ends of the outer slot plate 1, maintaining communication between the ends and the external air. Simultaneously, flame-retardant partitions 5 are fitted over the outer wall of the conductive copper busbars 3 in the middle of the outer slot plate 1, forming a closed flame-retardant partition inside the outer slot plate 1. This effectively prevents internal fires and the chimney effect. The placement of heat dissipation holes 15 and heat dissipation grooves 11 allows the space within the outer slot plate 1, separated by the flame-retardant partitions 5, to communicate with the outside, effectively dissipating and flowing the hot air generated inside, thus improving the heat dissipation effect of this device. Furthermore, the placement of the heat dissipation grooves 11 provides some shielding to the outside of the heat dissipation holes 15, effectively preventing the entry of external foreign objects.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A KFM air-sealed busbar trunking system, comprising an outer trunking plate (1), characterized in that: The inner wall of the outer groove plate (1) is movably connected to the top cover plate (2). The inner walls of both ends of the outer groove plate (1) are fixedly connected to the insulating partitions (4). The outer groove plate (1) is provided with a conductive copper busbar (3). There are four insulating partitions (4). Two of the insulating partitions (4) are respectively snapped to one end of the outer wall of the conductive copper busbar (3), and the other two insulating partitions (4) are snapped to the other end of the outer wall of the conductive copper busbar (3). The middle inner wall of the outer groove plate (1) is fixedly connected to a flame-retardant partition (5). The outer wall of the flame-retardant partition (5) is provided with a connecting groove (51). The flame-retardant partition (5) is sleeved on the outer wall of the conductive copper busbar (3) through the connecting groove (51).

2. The KFM air-sealed busbar trunking according to claim 1, characterized in that: The top surface of the top cover plate (2) is provided with a heat conduction groove (21), and a heat sink (22) is fixedly connected to the inner wall of the heat conduction groove (21).

3. The KFM air-sealed busbar trunking according to claim 1, characterized in that: The inner walls of the outer groove plate (1) are provided with limiting guide grooves (13) on both sides, and the outer walls of the top cover plate (2) are fixedly connected with insert plates (23), which are movably connected to the inner walls of the limiting guide grooves (13).

4. The KFM air-sealed busbar trunking according to claim 1, characterized in that: The top surface of the outer groove plate (1) is threaded with a bolt (14), and the bottom end of the bolt (14) penetrates the inner wall of the limiting guide groove (13) and presses against the top surface of the insert plate (23).

5. A KFM air-sealed busbar trunking system according to claim 4, characterized in that: Both ends of the outer groove plate (1) are fixedly connected to connecting plates (12), and the outer wall of the connecting plate (12) is provided with mounting holes (16).

6. The KFM air-sealed busbar trunking according to claim 1, characterized in that: The outer wall of the outer slot plate (1) is provided with a heat dissipation slot (11), and the inner wall of the heat dissipation slot (11) is provided with a heat dissipation hole (15). The interior of the heat dissipation slot (11) is connected to the interior of the outer slot plate (1) through the heat dissipation hole (15).

7. The KFM air-sealed busbar trunking according to claim 1, characterized in that: The conductive copper busbar (3) has connection holes (31) through its outer walls at both ends.