Low-voltage high-current-carrying bus duct for power system

Abstract

The utility model relates to the technical field of bus ducts, and discloses a low-voltage high-current-carrying bus duct for an electric power system, which solves the problem of poor heat dissipation performance of the existing low-voltage high-current-carrying bus duct, and comprises a bus duct shell, a plurality of conductive busbars are arranged in the bus duct shell in a penetrating manner, and the conductive busbars are arranged in the bus duct shell in a penetrating manner. Insulating layers are arranged on the surfaces of the conductive busbars, air inlet and exhaust through grooves are formed in the tops of the two ends of the bus duct shell, air inlet and exhaust filtering assemblies are arranged in the air inlet and exhaust through grooves, heat dissipation inner grooves communicated with the air inlet and exhaust through grooves are formed in the top end in the bus duct shell, and a plurality of clamping grooves communicated with the heat dissipation inner grooves are formed between the conductive busbars. A plurality of air inlet fans are fixedly arranged at one end in the heat dissipation inner groove, a plurality of flow guide fans are fixedly arranged at the other end and the middle position in the heat dissipation inner groove, and a plurality of positioning heat conduction assemblies are fixedly arranged in the heat dissipation inner groove; through the low-voltage high-current-carrying bus duct, the overall heat dissipation performance can be improved, and the service life is further prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of bus ducts, in particular to a low-voltage and high-current-carrying bus duct for a power system. Background Art

[0002] Bus duct is a closed metal device composed of copper and aluminum busbar columns, which is used to distribute large power to various components of a distributed system. It has increasingly replaced wires and cables in indoor low-voltage power transmission trunk line projects. Currently, low-voltage, high-current-carrying bus ducts are widely used in industrial production. However, during use, since they are installed in a closed space, their heat dissipation performance is poor, resulting in excessively high operating temperatures, which greatly reduces their service life and increases costs. Therefore, the present application proposes a low-voltage, high-current-carrying bus duct for a power system. 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 low-voltage and high-current-carrying bus duct for a power system, which effectively solves the problem of poor heat dissipation performance of the existing low-voltage and high-current-carrying bus duct.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-voltage, high-current-carrying bus duct for an electric power system, comprising a bus duct shell, a plurality of conductive busbars are interspersed inside the bus duct shell, an insulating layer is provided on the surface of the conductive busbars, air inlet and exhaust slots are provided at the tops of both ends of the bus duct shell, air inlet and exhaust slots are provided inside the air inlet and exhaust slots, air inlet and exhaust filter assemblies are provided, a heat dissipation inner slot connected to the air inlet and exhaust slots is provided at the top of the bus duct shell, a plurality of clamping slots connected to the heat dissipation inner slots are formed between the conductive busbars, a plurality of air inlet fans are fixedly provided at one end of the heat dissipation inner slot, a plurality of guide fans are fixedly provided at the other end and the middle position of the heat dissipation inner slot, and a plurality of positioning heat-conducting assemblies that are fitted and connected to the conductive busbars are fixed inside the heat dissipation inner slot.

[0005] Preferably, a liquid cooling tank is provided at the bottom end of the bus duct shell, and the interior of the liquid cooling tank is filled with cooling oil.

[0006] Preferably, an oil inlet and outlet pipes communicating with the liquid cooling tank are fixedly provided at one end of the bottom of the bus duct shell, and valves are provided on the oil inlet and outlet pipes.

[0007] Preferably, the positioning heat-conducting component is composed of a heat sink, several heat-conducting plates and several capillary heat-dissipating columns. The heat-conducting plate is fixedly connected to the bottom end of the heat sink and is fittedly connected to the side of the conductive busbar. The capillary heat-dissipating columns are fixedly connected to the top end of the heat sink, and the bottom end of the heat-conducting plate is inserted and connected to the inside of the liquid cooling tank.

[0008] Preferably, mounting supports are fixedly provided at both ends of the top of the heat dissipation plate, the mounting supports are connected to the bus duct housing by bolts, and a sealing ring is provided at the connection between the heat conduction plate and the bus duct housing.

[0009] Preferably, the air inlet and exhaust filter assembly is composed of a filter screen plate and air filter cotton, the filter screen plate is connected to the bus duct housing, and the air filter cotton is connected to one side of the filter screen plate.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] (1) During operation, by providing air intake and exhaust slots, heat dissipation inner slots, clamping slots, air intake fans and guide fans, the conductive busbars can be cooled by air. By arranging the conductive busbars at intervals, the contact area with the air can be increased, thereby improving the overall heat dissipation effect. By providing an air intake and exhaust filter assembly composed of a filter screen and air filter cotton, dust prevention can be achieved, preventing dust and impurities from entering the interior of the busbar duct.

[0012] (2) By setting up a positioning heat-conducting component composed of a heat dissipation plate, a plurality of heat-conducting plates and a plurality of capillary heat-dissipating columns, the conductive busbar can be limited, thereby improving the installation stability of the conductive busbar, and at the same time having the effects of heat dissipation and heat dissipation. By setting up a liquid cooling tank and cooling oil, the positioning heat-conducting component can be liquid-cooled to further improve the heat dissipation effect. By setting up inlet and outlet oil pipes and valves, the cooling oil can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached figure:

[0015] Figure 1 This is a schematic diagram of the structure of a low-voltage and high-current-carrying bus duct used in a power system according to the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a low-voltage, high-current-carrying bus duct used in a power system according to the utility model;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged view of

[0018] Figure 4 This is a schematic diagram of the structure of the positioning heat conduction component of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the air intake and exhaust filter assembly of the utility model;

[0020] In the figure: 1. Busbar housing; 2. Conductive busbar; 3. Inlet and exhaust air ducts; 4. Inlet and exhaust air filter assembly; 5. Heat dissipation inner trough; 6. Clamping groove; 7. Inlet fan; 8. Guide fan; 9. Positioning heat conduction assembly; 10. Liquid cooling trough; 11. Cooling oil; 12. Inlet and outlet oil pipes; 13. Valve; 14. Heat sink; 15. Heat conduction plate; 16. Capillary heat dissipation column; 17. Mounting bracket; 18. Bolt; 19. Sealing ring; 20. Filter plate; 21. Air filter cotton. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Depend on Figure 1 and Figure 2 The utility model provides a low-voltage and high-current-carrying bus duct for an electric power system, comprising a bus duct shell 1, a plurality of conductive busbars 2 are interspersed inside the bus duct shell 1, and an insulating layer is provided on the surface of the conductive busbar 2. Air inlet and exhaust slots 3 are provided at the tops of both ends of the bus duct shell 1, and air inlet and exhaust filter assemblies 4 are provided inside the air inlet and exhaust slots 3. A heat dissipation inner slot 5 connected to the air inlet and exhaust slots 3 is provided at the top of the interior of the bus duct shell 1, and a plurality of clamping slots 6 connected to the heat dissipation inner slot 5 are formed between the conductive busbars 2. A plurality of air inlet fans 7 are fixedly provided at one end of the interior of the heat dissipation inner slot 5, and a plurality of guide fans 8 are fixedly provided at the other end and the middle position of the interior of the heat dissipation inner slot 5. A plurality of positioning heat-conducting assemblies 9 that are fitted and connected to the conductive busbars 2 are fixedly provided inside the heat dissipation inner slot 5.

[0023] When in use, the inlet fan 7 and the guide fan 8 are started to allow external air to enter the interior of the heat dissipation inner tank 5, and the air can be filtered through the air inlet and exhaust filter assembly 4. The arrangement of the clamping groove 6 can increase the air circulation, increase the contact area between the conductive busbar 2 and the air, and thus improve the heat dissipation effect;

[0024] Depend on Figures 1 to 5The bottom of the busbar housing 1 is provided with a liquid cooling tank 10, and the interior of the liquid cooling tank 10 is filled with cooling oil 11. One end of the bottom of the busbar housing 1 is fixedly provided with an inlet and outlet oil pipe 12 connected to the liquid cooling tank 10, and a valve 13 is provided on the inlet and outlet oil pipe 12. The positioning heat conduction component 9 is composed of a heat sink 14, a plurality of heat conduction plates 15 and a plurality of capillary heat dissipation columns 16. The heat conduction plate 15 is fixedly connected to the bottom end of the heat sink 14 and is connected to the side of the conductive busbar 2. The capillary heat dissipation column 16 is fixedly connected At the top of the heat sink 14, the bottom end of the heat conducting plate 15 is inserted and connected to the inside of the liquid cooling tank 10. Both ends of the top of the heat sink 14 are fixedly provided with mounting brackets 17. The mounting brackets 17 are connected to the bus duct housing 1 by bolts 18. A sealing ring 19 is provided at the connection between the heat conducting plate 15 and the bus duct housing 1. The air inlet and exhaust filter assembly 4 is composed of a filter screen plate 20 and air filter cotton 21. The filter screen plate 20 is connected to the bus duct housing 1, and the air filter cotton 21 is connected to one side of the filter screen plate 20.

[0025] The liquid cooling tank 10 and the cooling oil 11 can realize liquid cooling of the positioning heat-conducting component 9, further improving the heat dissipation effect. The heat-conducting plate 15 is connected to the side of the conductive busbar 2, which can limit the conductive busbar 2 and improve the stability of its installation. At the same time, it has heat conduction and heat dissipation performance. The heat-conducting plate 15 and the capillary heat dissipation column 16 can increase the air-cooled heat dissipation efficiency. The sealing ring 19 can improve the sealing of the connection between the heat-conducting plate 15 and the busbar duct shell 1. The filter plate 20 and the air filter cotton 21 can filter the air to prevent dust and impurities from entering the interior of the busbar duct shell 1.

[0026] During operation, by providing air inlet and exhaust slots, heat dissipation inner slots, clamping slots, inlet fans and guide fans, the conductive busbar can be air-cooled and heat dissipated. By arranging the conductive busbars at intervals, the contact area with the air can be increased, thereby improving the overall heat dissipation effect. By providing an air inlet and exhaust filter assembly composed of a filter mesh plate and air filter cotton, it can play a dust-proof role and prevent dust and impurities from entering the interior of the busbar duct; by providing a positioning heat-conducting assembly composed of a heat dissipation plate, several heat-conducting plates and several capillary heat-dissipating columns, the conductive busbar can be limited, thereby improving the installation stability of the conductive busbar, and at the same time having the heat dissipation and heat dissipation effects; by providing a liquid cooling tank and cooling oil, the positioning heat-conducting assembly can be liquid-cooled and heat dissipated, further improving the heat dissipation effect; by providing inlet and outlet oil pipes and valves, the cooling oil can be easily replaced.

Claims

1. A low-voltage, high-current-carrying bus duct for a power system, comprising a bus duct housing (1), characterized in that: The busbar trough shell (1) is provided with a plurality of conductive busbars (2) interspersed therein, and the surface of the conductive busbars (2) is provided with an insulating layer. The tops of both ends of the busbar trough shell (1) are provided with air inlet and exhaust slots (3), and air inlet and exhaust filter components (4) are provided inside the air inlet and exhaust slots (3). The top of the busbar trough shell (1) is provided with a heat dissipation inner slot (5) connected to the air inlet and exhaust slots (3). A plurality of clamping slots (6) connected to the heat dissipation inner slot (5) are formed between the conductive busbars (2). A plurality of air inlet fans (7) are fixedly provided at one end of the heat dissipation inner slot (5), and a plurality of air guide fans (8) are fixedly provided at the other end and the middle position of the heat dissipation inner slot (5). A plurality of positioning heat conduction components (9) that are fitted and connected to the conductive busbars (2) are fixedly provided inside the heat dissipation inner slot (5).

2. The low-voltage, high-current-carrying bus duct for a power system according to claim 1, characterized in that: A liquid cooling tank (10) is provided at the bottom end of the busbar duct housing (1), and the interior of the liquid cooling tank (10) is filled with cooling oil (11).

3. The low-voltage, high-current-carrying bus duct for a power system according to claim 2, characterized in that: An inlet and outlet oil pipe (12) communicating with the liquid cooling tank (10) is fixedly provided at one end of the bottom of the busbar duct housing (1), and a valve (13) is provided on the inlet and outlet oil pipe (12).

4. The low-voltage, high-current-carrying bus duct for a power system according to claim 2, characterized in that: The positioning heat-conducting assembly (9) is composed of a heat dissipation plate (14), a plurality of heat-conducting plates (15) and a plurality of capillary heat-dissipating columns (16); the heat-conducting plate (15) is fixedly connected to the bottom end of the heat dissipation plate (14) and is closely connected to the side of the conductive busbar (2); the capillary heat-dissipating columns (16) are fixedly connected to the top end of the heat dissipation plate (14); and the bottom end of the heat-conducting plate (15) is inserted and connected to the interior of the liquid cooling tank (10).

5. The low-voltage, high-current-carrying bus duct for a power system according to claim 4, characterized in that: Mounting supports (17) are fixedly provided at both ends of the top of the heat dissipation plate (14); the mounting supports (17) are connected to the bus duct housing (1) via bolts (18); and a sealing ring (19) is provided at the connection between the heat conducting plate (15) and the bus duct housing (1).

6. The low-voltage, high-current-carrying bus duct for a power system according to claim 1, characterized in that: The air inlet and exhaust filter assembly (4) is composed of a filter screen plate (20) and air filter cotton (21); the filter screen plate (20) is connected to the busbar housing (1); and the air filter cotton (21) is connected to one side of the filter screen plate (20).

Images