High-temperature-resistant low-voltage bus duct

Abstract

The utility model relates to the technical field of bus ducts, and discloses a high-temperature-resistant low-voltage bus duct, which solves the problem that the existing low-voltage bus duct is poor in high-temperature resistance and fire resistance, and comprises a bus duct shell, and a plurality of conductive busbars are fixedly arranged in the bus duct shell. A fireproof heat insulation filling body is fixedly arranged at the joint of the conductive busbar and a port of the bus duct shell, a combined heat dissipation fireproof mechanism is arranged at the top end of the bus duct shell, and the bus duct shell is composed of a supporting bottom plate, a first supporting side plate, a second supporting side plate, a supporting top plate, a fireproof heat insulation interlayer and a fireproof heat insulation outer wrapping layer. The fireproof heat insulation interlayer is connected to the inner surfaces of the supporting bottom plate, the first supporting side plate, the second supporting side plate and the supporting top plate. The fireproof heat insulation outer wrapping layer is connected to the outer surfaces of the supporting bottom plate, the first supporting side plate, the second supporting side plate and the supporting top plate. The low-voltage bus duct can improve fire resistance and high temperature resistance, and has heat dissipation performance at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of bus ducts, in particular to a high temperature resistant low voltage bus duct. Background Art

[0002] Low-voltage bus ducts have increasingly replaced wires and cables in indoor low-voltage power transmission trunk line projects. However, existing low-voltage bus ducts have poor high-temperature resistance and fire resistance. In the event of a fire, the bus duct is subjected to high-temperature baking and is prone to deformation and damage, resulting in interruption of power transmission and affecting the stability and safety of use. Therefore, the present application proposes a high-temperature resistant low-voltage bus duct to improve the fire resistance and high-temperature resistance of the low-voltage bus duct, while ensuring that it has heat dissipation performance during normal operation, thereby improving its stability and safety of use. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high temperature resistant low voltage bus duct, which effectively solves the problem that the existing low voltage bus duct has poor high temperature resistance and fire resistance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature resistant low-voltage bus duct, including a bus duct shell, a plurality of conductive busbars are fixedly arranged inside the bus duct shell, a fireproof and heat-insulating filling body is fixedly arranged at the port connection between the conductive busbar and the bus duct shell, an insulating layer is arranged on the outer surface of the conductive busbar, a combined heat dissipation and fire-proofing mechanism is arranged on the top of the bus duct shell, and the bus duct shell is composed of a supporting bottom plate, a supporting side plate one, a supporting side plate two, a supporting top plate, a fireproof and heat-insulating interlayer and a fireproof and heat-insulating outer covering layer, the supporting side plate one and the supporting side plate two are respectively connected to the two sides of the top of the supporting bottom plate, the supporting top plate is connected to the top of the supporting side plate one and the supporting side plate two, the fireproof and heat-insulating interlayer is connected to the inner surfaces of the supporting bottom plate, the supporting side plate one, the supporting side plate two and the supporting top plate, and the fireproof and heat-insulating outer covering layer is connected to the outer surfaces of the supporting bottom plate, the supporting side plate one, the supporting side plate two and the supporting top plate.

[0005] Preferably, the combined heat dissipation and fire protection mechanism is composed of a fire protection and heat insulation component 1, a fire protection and heat insulation component 2, a plurality of heat sinks and a plurality of heat dissipation fans. The fire protection and heat insulation component 1 and the fire protection and heat insulation component 2 are respectively fixedly connected to the two sides of the top of the supporting top plate, and the heat sinks are inserted into the supporting top plate and the fire protection and heat insulation outer covering layer and are fitly connected to the insulating layer of the conductive busbar.

[0006] Preferably, a knife-edge aluminum heat sink is fixedly provided on the top of the heat sink.

[0007] Preferably, the fireproof heat insulation component one and the fireproof heat insulation component two are both composed of a fireproof heat insulation board one, a fireproof heat insulation board two, a hinge, a capsule and a pulling component. The fireproof heat insulation board two is rotatably connected to the top of the fireproof heat insulation board one through a hinge, the capsule is fixedly connected to the top of one side of the fireproof heat insulation board two, the interior of the capsule is filled with fireproof heat insulation dry powder, and the pulling component is connected between the fireproof heat insulation board two and the bus duct shell.

[0008] Preferably, the pulling assembly is composed of a rotating cylinder, an L-shaped hook and a traction rope. The rotating cylinder is fixedly connected to the side of the top of the bus duct shell, the L-shaped hook is fixedly connected to the output shaft of the rotating cylinder, one end of the traction rope is sleeved on the L-shaped hook, and the other end of the traction rope is fixedly connected to the second fireproof insulation board.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] (1) During operation, by providing a fireproof and heat-insulating filling body and a bus duct shell composed of a supporting bottom plate, a supporting side plate 1, a supporting side plate 2, a supporting top plate, a fireproof and heat-insulating interlayer and a fireproof and heat-insulating outer coating layer, the fire resistance and heat-insulating performance can be improved, the bus duct can be prevented from being deformed or even damaged by high-temperature drying, and the stability and safety of the bus duct can be improved;

[0011] (2) By providing a heat sink and a heat dissipation fan, the bus duct can have heat dissipation performance when it is working normally. By providing a fireproof heat insulation component 1 and a fireproof heat insulation component 2 composed of a fireproof heat insulation board 1, a fireproof heat insulation board 2, a hinge, a bladder and a pulling component, the heat sink can be covered in the event of a fire to prevent heat from being transferred to the conductive busbar through the heat sink and affecting the safety of the conductive busbar, thereby further achieving the functions of heat isolation and fire prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0013] In the attached picture:

[0014] Figure 1 This is a schematic diagram of the structure of the high temperature resistant low voltage bus duct of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the bus duct housing of the utility model;

[0016] Figure 3 For this utility model Figure 1 A partial enlarged view of

[0017] Figure 4 This is a schematic diagram of the structure of the second fireproof and heat-insulating component of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the pulling assembly of the utility model;

[0019] In the figure: 1. bus duct shell; 2. conductive busbar; 3. fireproof and heat-insulating filling body; 4. combined heat dissipation and fire-proofing mechanism; 5. supporting bottom plate; 6. supporting side plate one; 7. supporting side plate two; 8. supporting top plate; 9. fireproof and heat-insulating interlayer; 10. fireproof and heat-insulating outer coating layer; 11. fireproof and heat-insulating component one; 12. fireproof and heat-insulating component two; 13. heat sink; 14. cooling fan; 15. knife-edge aluminum heat sink; 16. fireproof and heat-insulating board one; 17. fireproof and heat-insulating board two; 18. hinge; 19. capsule; 20. pulling component; 21. rotating cylinder; 22. L-shaped hook; 23. traction rope. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Depend on Figure 1 and Figure 2 The utility model discloses a high temperature resistant low voltage bus duct, comprising a bus duct shell 1, a plurality of conductive bus bars 2 are fixedly arranged inside the bus duct shell 1, a fireproof and heat insulating filling body 3 is fixedly arranged at the connection between the conductive bus bars 2 and the port of the bus duct shell 1, an insulating layer is arranged on the outer surface of the conductive bus bars 2, a combined heat dissipation and fireproofing mechanism 4 is arranged on the top of the bus duct shell 1, and the bus duct shell 1 is composed of a supporting bottom plate 5, a supporting side plate 1 6, a supporting side plate 2 7, a supporting top plate 8, and a fireproof and heat insulating filling body 3. The fireproof heat-insulating interlayer 9 and the fireproof heat-insulating outer covering layer 10 are composed, the supporting side plate 1 6 and the supporting side plate 2 7 are respectively connected to the two sides of the top of the supporting bottom plate 5, the supporting top plate 8 is connected to the top of the supporting side plate 1 6 and the supporting side plate 2 7, the fireproof heat-insulating interlayer 9 is connected to the inner surfaces of the supporting bottom plate 5, the supporting side plate 1 6, the supporting side plate 2 7 and the supporting top plate 8, and the fireproof heat-insulating outer covering layer 10 is connected to the outer surfaces of the supporting bottom plate 5, the supporting side plate 1 6, the supporting side plate 2 7 and the supporting top plate 8;

[0022] The fireproof and heat-insulating filler 3 can improve the fire resistance and heat insulation performance of the connection between the conductive busbar 2 and the port of the busbar housing 1, and the fireproof and heat-insulating interlayer 9 and the fireproof and heat-insulating outer coating 10 can achieve double fire resistance and heat insulation performance, thereby preventing the support bottom plate 5, the support side plate 1 6, the support side plate 2 7, the support top plate 8 and the conductive busbar 2 from being deformed due to high temperature;

[0023] Depend on Figures 1 to 5 It is given that the combined heat dissipation and fire prevention mechanism 4 is composed of a fireproof and heat insulation component 11, a fireproof and heat insulation component 2 12, a plurality of heat sinks 13 and a plurality of heat dissipation fans 14. The fireproof and heat insulation component 11 and the fireproof and heat insulation component 2 12 are respectively fixedly connected to the two sides of the top of the supporting top plate 8. The heat sink 13 is inserted into the supporting top plate 8 and the fireproof and heat insulation outer coating layer 10 and is bonded to the insulating layer of the conductive busbar 2. A knife-edge aluminum heat sink 15 is fixedly arranged on the top of the heat sink 13. The fireproof and heat insulation component 11 and the fireproof and heat insulation component 2 12 are both composed of a fireproof and heat insulation board 16, a fireproof and heat insulation board 2 17, a hinge 18, a capsule 19 and a pulling component 20. The fireproof heat insulation board 17 is rotatably connected to the top of the fireproof heat insulation board 16 through a hinge 18, the capsule 19 is fixedly connected to the top of one side of the fireproof heat insulation board 17, and the capsule 19 is filled with fireproof heat insulation dry powder. The pulling component 20 is connected between the fireproof heat insulation board 17 and the bus duct housing 1, and the pulling component 20 is composed of a rotating cylinder 21, an L-shaped hook 22 and a traction rope 23. The rotating cylinder 21 is fixedly connected to the side of the top of the bus duct housing 1, and the L-shaped hook 22 is fixedly connected to the output shaft of the rotating cylinder 21. One end of the traction rope 23 is sleeved on the L-shaped hook 22, and the other end of the traction rope 23 is fixedly connected to the fireproof heat insulation board 17;

[0024] When the bus duct is working normally, the heat dissipation function can be realized through the heat sink 13, and the heat dissipation fan 14 can assist in heat dissipation to ensure the normal operation of the bus duct. When a fire occurs, the rotating cylinder 21 is started to drive the L-shaped hook 22 to rotate 180 degrees. At this time, one end of the traction rope 23 is separated from the L-shaped hook 22, and the traction of the fireproof insulation board 17 is released. At the same time, the traction rope 23 can be set to a non-fire-resistant material, so that it is easy to be burned and broken, ensuring that the traction rope 23 can release the traction of the fireproof insulation board 17 in the event of a fire. At this time, the fireproof heat insulation board 17 rotates around the hinge 18 under the gravity of the capsule 19 and the fireproof heat insulation dry powder, thereby covering the heat sink 13 and playing a role of fireproof and heat insulation. At the same time, the capsule 19 is in contact with the knife-edge aluminum heat sink 15, and the capsule 19 is cut by the knife-edge aluminum heat sink 15, so that the fireproof and heat insulation dry powder inside the capsule 19 is spilled out, further improving the fireproof and heat insulation effect. The capsule 19 can also be set to a non-refractory material, so that it is easily burned and melted, ensuring that the fireproof and heat insulation dry powder can be spilled smoothly.

[0025] During operation, by providing a fireproof and heat-insulating filling body and a bus duct shell composed of a supporting bottom plate, a supporting side plate one, a supporting side plate two, a supporting top plate, a fireproof and heat-insulating interlayer and a fireproof and heat-insulating outer coating, the fire resistance and heat-insulating performance can be improved, the bus duct can be prevented from being deformed or even damaged due to high-temperature drying, and the stability and safety of the bus duct can be improved; by providing a heat sink and a heat dissipation fan, the bus duct can have heat dissipation performance when it is working normally, and by providing a fireproof and heat-insulating component one and a fireproof and heat-insulating component two composed of a fireproof and heat-insulating board one, a fireproof and heat-insulating board two, a hinge, a capsule and a pulling component, the heat sink can be covered in the event of a fire, so as to prevent heat from being transferred to the conductive busbar through the heat sink and affecting the safety of the conductive busbar, thereby further realizing the functions of heat isolation and fire prevention.

Claims

1. A high temperature resistant low voltage bus duct, comprising a bus duct housing (1), characterized in that: A plurality of conductive busbars (2) are fixedly arranged inside the bus duct housing (1); a fireproof and heat-insulating filler (3) is fixedly arranged at the port connection between the conductive busbars (2) and the bus duct housing (1); an insulating layer is arranged on the outer surface of the conductive busbars (2); a combined heat dissipation and fire-proofing mechanism (4) is arranged at the top of the bus duct housing (1); the bus duct housing (1) comprises a supporting bottom plate (5), a supporting side plate 1 (6), a supporting side plate 2 (7), a supporting top plate (8), a fireproof and heat-insulating interlayer (9) and a fireproof and heat-insulating outer covering layer (1 0), a supporting side plate 1 (6) and a supporting side plate 2 (7) are respectively connected to the two sides of the top end of the supporting bottom plate (5), a supporting top plate (8) is connected to the top ends of the supporting side plate 1 (6) and the supporting side plate 2 (7), a fireproof heat-insulating interlayer (9) is connected to the inner surfaces of the supporting bottom plate (5), the supporting side plate 1 (6), the supporting side plate 2 (7) and the supporting top plate (8), and a fireproof heat-insulating outer coating layer (10) is connected to the outer surfaces of the supporting bottom plate (5), the supporting side plate 1 (6), the supporting side plate 2 (7) and the supporting top plate (8).

2. A high temperature resistant low voltage bus duct according to claim 1, characterized in that: The combined heat dissipation and fireproofing mechanism (4) is composed of a fireproofing and heat-insulating component one (11), a fireproofing and heat-insulating component two (12), a plurality of heat sinks (13) and a plurality of heat dissipation fans (14); the fireproofing and heat-insulating component one (11) and the fireproofing and heat-insulating component two (12) are respectively fixedly connected to the two sides of the top of the supporting top plate (8); the heat sinks (13) are inserted into the supporting top plate (8) and the fireproofing and heat-insulating outer coating layer (10) and are bonded and connected to the insulating layer of the conductive busbar (2).

3. A high temperature resistant low voltage bus duct according to claim 2, characterized in that: A knife-edge aluminum heat dissipation plate (15) is fixedly arranged on the top of the heat dissipation fin (13).

4. The high temperature resistant low voltage bus duct according to claim 2, characterized in that: The fireproof heat insulation component one (11) and the fireproof heat insulation component two (12) are both composed of a fireproof heat insulation board one (16), a fireproof heat insulation board two (17), a hinge (18), a capsule (19) and a pulling component (20); the fireproof heat insulation board two (17) is rotatably connected to the top of the fireproof heat insulation board one (16) through the hinge (18); the capsule (19) is fixedly connected to the top of one side of the fireproof heat insulation board two (17); the capsule (19) is filled with fireproof heat insulation dry powder; and the pulling component (20) is connected between the fireproof heat insulation board two (17) and the bus duct housing (1).

5. The high temperature resistant low voltage bus duct according to claim 4, characterized in that: The pulling assembly (20) is composed of a rotating cylinder (21), an L-shaped hook (22) and a pulling rope (23); the rotating cylinder (21) is fixedly connected to the side of the top end of the bus duct housing (1); the L-shaped hook (22) is fixedly connected to the output shaft of the rotating cylinder (21); one end of the pulling rope (23) is sleeved on the L-shaped hook (22); and the other end of the pulling rope (23) is fixedly connected to the second fireproof insulation board (17).

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