Bus heat dissipation device

Abstract

The utility model relates to the technical field of power transmission buses, in particular to a bus heat dissipation device which comprises a bus, the bus is sleeved with a shell, the shell is provided with an air blowing assembly, the air blowing assembly comprises an air inlet pipe and an air outlet pipe which communicate with the shell, and air blowing blades are rotationally arranged in the air inlet pipe and used for blowing air into the shell. The air inlet pipe is provided with a driving part for driving the air blowing blades to rotate, the shell is provided with a heat exchange assembly, the heat exchange assembly is used for absorbing heat generated by the bus, the driving part comprises a mounting frame arranged in the air inlet pipe, a main shaft is rotationally arranged on the mounting frame, and the air blowing blades are coaxially arranged on the main shaft. A driving motor electrically connected to the control system is arranged on the mounting frame, and the main shaft is coaxially arranged on an output shaft of the driving motor. The bus cooling device has the effect of rapidly cooling the bus.

Description

Technical Field

[0001] The present application relates to the technical field of power transmission busbars, and in particular to a busbar heat dissipation device. Background Art

[0002] Transmission busbars are essential equipment for collecting, distributing, and transmitting electrical energy within power systems. With advantages such as large capacity and a short design and construction cycle, they have gradually replaced cables as the mainstream transmission tool. Typically made of highly conductive copper or aluminum, they connect the various current-carrying branch circuits within distribution equipment, transmitting electrical energy.

[0003] The transmission busbar has a skin effect, that is, the current is mainly concentrated on the surface of the busbar, making the current density inside the busbar smaller. At the same time, the skin effect will also reduce the effective current-carrying area of ​​the busbar, thereby increasing the resistance of the busbar, and then causing the surface temperature of the conductor to rise, causing the busbar temperature to rise rapidly. In severe cases, the busbar temperature will exceed the allowable operating temperature range, affecting its normal operation and service life.

[0004] Chinese patent publication number CN204992469U discloses an aluminum-based tapped transmission busbar profile with a square cross-section. Screw holes or straight holes are left on the upper and lower panels, and the cavity is hollow. The surfaces of the two side panels have raised heat dissipation fin structures arranged parallel to the length of the profile.

[0005] During the use of the above technology, the busbar profile dissipates heat through the heat dissipation fins on it through natural wind, thereby achieving the effect of cooling the busbar. However, the busbar is usually installed indoors, and a junction box is installed outside the busbar. The airflow in the junction box is usually unable to flow, and the temperature in the junction box can only be dissipated by the junction box through heat transfer. This will cause the temperature generated by the busbar to continuously accumulate in the junction box, causing the temperature in the junction box to continue to rise. In severe cases, the temperature in the junction box will exceed the allowable operating temperature range of the busbar, causing damage to the busbar, which has shortcomings. Utility Model Content

[0006] In order to improve the problem that the busbar heat dissipation effect is poor and easily causes damage to the busbar, the present application provides a busbar heat dissipation device.

[0007] The present application provides a busbar heat dissipation device that adopts the following technical solution:

[0008] A busbar heat dissipation device includes a busbar, a shell is provided on the busbar, a blast assembly is provided on the shell, the blast assembly includes an air inlet pipe and an air outlet pipe connected to the shell, blast blades are rotatably provided in the air inlet pipe, the blast blades are used to blast air into the shell, a driving part is provided on the air inlet pipe to drive the blast blades to rotate, and a heat exchange assembly is provided on the shell, the heat exchange assembly is used to absorb heat generated by the busbar.

[0009] By adopting the above technical solution, the installer puts the shell on the busbar. When the busbar is working, the driving part drives the blast blades to rotate, and the blast blades blow air into the air inlet pipe. At the same time, the heat exchange component absorbs the heat generated by the busbar. The air flow flows in the shell and discharges the heat generated by the busbar through the air outlet pipe, thereby reducing the continuous accumulation of heat in the shell.

[0010] Optionally, the driving member includes a mounting bracket arranged in the air inlet duct, a main shaft is rotatably arranged on the mounting bracket, the blower blades are coaxially arranged on the main shaft, a driving motor electrically connected to the control system is arranged on the mounting bracket, and the main shaft is coaxially arranged on the output shaft of the driving motor.

[0011] By adopting the above technical solution, the control system starts the drive motor, and the output shaft of the drive motor drives the blast blades to rotate through the main shaft, thereby achieving the effect of discharging heat in the shell.

[0012] Optionally, the heat exchange assembly includes a transfer box which is arranged on the mounting frame and is hollow inside. The main shaft rotates through the transfer box. The transfer box is filled with coolant. Push blades are provided on the main shaft in the transfer box. A cooling pipe is provided on the outer shell. Both ends of the cooling pipe are respectively connected to the transfer box and are located on both sides of the main shaft. A heat-conducting insulating plate is provided on the cooling pipe, and the heat-conducting insulating plate is in contact with the busbar.

[0013] By adopting the above technical solution, when the main shaft drives the push blades to rotate, the coolant in the transfer box and the cooling pipe continuously flows and circulates under the rotation of the push blades. At the same time, the heat generated on the busbar is transferred to the cooling pipe through the heat-conducting insulating plate. The cooling pipe brings part of the heat to the transfer box. The blower blades dissipate heat from the transfer box, causing the absorbed heat to diffuse into the cavity in the outer shell, and then be quickly discharged from the outlet pipe along with the airflow generated by the blower blades.

[0014] Optionally, the cooling pipe located in the shell is in a continuous S-shape.

[0015] By adopting the above technical solution, the contact area between the cooling pipe and the heat in the shell is increased, which is beneficial to improving the cooling effect of the busbar.

[0016] Optionally, the diameter of the air outlet pipe is smaller than the diameter of the air inlet pipe, and a heat dissipation pipe is provided at the air outlet pipe, and the heat dissipation pipe is connected to the cooling pipe.

[0017] By adopting the above technical solution, the flow velocity of the air flow flowing in the shell will increase when passing through the air outlet pipe, the heat dissipation pipe at the air outlet pipe will be quickly cooled down, and the temperature of the coolant flowing to the heat dissipation pipe through the cooling pipe will also drop rapidly, thereby improving the heat dissipation effect in the shell.

[0018] Optionally, a wind-cone ring is provided at the air outlet pipe, and the inner diameter of the wind-cone ring gradually decreases along the direction from the outer shell to the air outlet pipe. The heat dissipation pipe is spiral and is located at the air outlet of the wind-cone ring.

[0019] By adopting the above technical solution, the wind-cone ring further accelerates the flow rate of the gas at the outlet pipe, thereby forming a cold air zone at the outlet pipe, and the heat dissipation pipe in the cold air zone will be further cooled down quickly, which is beneficial to improving the cooling effect of the coolant in the heat dissipation pipe.

[0020] Optionally, a spiral guide plate is provided in the shell, the cooling pipe passes through the guide plate, and a limiting groove for limiting the movement of the busbar is provided on the guide plate.

[0021] By adopting the above technical solution, the spiral guide plate causes the airflow to flow in a spiral direction around the busbar, thereby improving the heat discharge effect inside the shell. At the same time, the flowing airflow can be fully mixed with the heat generated by the busbar, which is beneficial to improving the cooling effect of the busbar.

[0022] Optionally, a plurality of heat dissipation fins are provided on the housing.

[0023] By adopting the above technical solution, the contact area between the shell and the air is increased, thereby improving the heat dissipation effect of the shell through heat transfer.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The installer puts the housing on the busbar. When the busbar is working, the driver drives the blast blades to rotate, and the blast blades blow air into the air inlet pipe. At the same time, the heat exchange component absorbs the heat generated by the busbar. The air flows in the housing and discharges the heat generated by the busbar through the air outlet pipe, thereby reducing the continuous accumulation of heat in the housing.

[0026] 2. When the main shaft drives the pusher blades to rotate, the coolant in the transfer box and cooling pipes continuously circulates under the action of the rotation of the pusher blades. At the same time, the heat generated on the busbar is transferred to the cooling pipes through the heat-conducting insulation plate. The cooling pipes carry part of the heat to the transfer box. The blower blades dissipate the heat from the transfer box, causing the absorbed heat to diffuse into the cavity inside the shell. Then, it is quickly discharged from the air outlet pipe along with the airflow generated by the blower blades.

[0027] 3. The wind-cone ring further accelerates the flow rate of the gas at the outlet pipe, thereby forming a cold air zone at the outlet pipe, and the heat dissipation pipe in the cold air zone will be further cooled down quickly, which is beneficial to improving the cooling effect of the coolant in the heat dissipation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of an embodiment of the present application.

[0029] Figure 2 It is a partial cross-sectional view of the positional relationship among the busbar, guide plate and cooling pipe in the embodiment of the present application.

[0030] Figure 3 It is a cross-sectional view showing the positional relationship among the air inlet pipe, transfer box and push blades in the embodiment of the present application.

[0031] Explanation of the accompanying reference numerals: 1. busbar; 2. outer casing; 3. blower assembly; 31. air inlet pipe; 32. air outlet pipe; 33. blower blade; 34. driving part; 341. mounting frame; 342. main shaft; 343. driving motor; 4. heat exchange assembly; 41. transfer box; 42. push blade; 43. cooling pipe; 44. heat-conducting insulation plate; 5. heat dissipation pipe; 6. wind-collecting cone ring; 7. guide plate; 8. limiting groove; 9. heat dissipation fin. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] An embodiment of the present application discloses a busbar heat dissipation device.

[0034] Reference Figure 1 A busbar heat dissipation device includes a busbar 1, a shell 2 is provided on the busbar 1, a plurality of heat dissipation fins 9 are welded on the shell 2, a spiral guide plate 7 is welded inside the shell 2, the guide plate 7 can be made of aluminum nitride material, and a limiting groove 8 for limiting the movement of the busbar 1 is opened on the guide plate 7.

[0035] Reference Figure 1 、 Figure 2 and Figure 3A blower assembly 3 is arranged on the outer shell 2, and the blower assembly 3 includes an air inlet pipe 31 and an air outlet pipe 32 connected to the outer shell 2. The diameter of the air outlet pipe 32 is smaller than the diameter of the air inlet pipe 31. A blower blade 33 is rotatably arranged in the air inlet pipe 31. The blower blade 33 is used to blow air into the outer shell 2. A driving member 34 for driving the blower blade 33 to rotate is arranged on the air inlet pipe 31.

[0036] Reference Figure 1 、 Figure 2 and Figure 3 The driving member 34 includes a mounting bracket 341 welded inside the air inlet pipe 31, and a main shaft 342 coaxial with the air inlet pipe 31 is rotatably connected to the mounting bracket 341. The blast blades 33 are coaxially welded to the main shaft 342. A driving motor 343 electrically connected to the control system is bolted to the mounting bracket 341, and the main shaft 342 is coaxially welded to the output shaft of the driving motor 343.

[0037] When the busbar 1 is working, the control system starts the drive motor 343, and the drive motor 343 drives the blast blades 33 to rotate through the main shaft 342. The blast blades 33 blow air into the air inlet pipe 31, so that the heat generated by the busbar 1 during operation is discharged from the air outlet pipe 32 through the flowing air flow.

[0038] Reference Figure 1 、 Figure 2 and Figure 3 A heat exchange component 4 is arranged on the outer shell 2. The heat exchange component 4 is used to absorb the heat generated by the busbar 1. The heat exchange component 4 includes a transfer box 41 welded to the mounting frame 341 and hollow inside. The transfer box 41 is filled with coolant. The main shaft 342 rotates through the transfer box 41. A sealing ring (not shown in the figure) is arranged between the transfer box 41 and the main shaft 342.

[0039] Reference Figure 1 、 Figure 2 and Figure 3 A pusher blade 42 is welded on the main shaft 342 in the transfer box 41, and a cooling pipe 43 is arranged on the outer shell 2. The cooling pipe 43 passes through the guide plate 7. The cooling pipe 43 located in the outer shell 2 is a continuous S-shape. The two ends of the cooling pipe 43 are respectively connected to the transfer box 41 and are located on both sides of the main shaft 342. A heat-conducting insulating plate 44 is welded on the cooling pipe 43. The heat-conducting insulating plate 44 can be made of aluminum nitride material, which has excellent thermal conductivity and insulation properties.

[0040] Reference Figure 1 、 Figure 2 and Figure 3The heat-conducting insulating plate 44 is in contact with the busbar 1. A spiral heat dissipation pipe 5 is arranged at the air outlet pipe 32. The heat dissipation pipe 5 is connected to the cooling pipe 43. A wind-gathering cone ring 6 is welded at the air outlet pipe 32. The inner diameter of the wind-gathering cone ring 6 gradually decreases along the direction from the outer shell 2 to the air outlet pipe 32. The heat dissipation pipe 5 is located at the air outlet of the wind-gathering cone ring 6.

[0041] When the main shaft 342 drives the pushing blades 42 to rotate, the pushing blades 42 of the transfer box 41 drive the coolant in the transfer box 41 to circulate in sequence along the transfer box 41, the cooling pipe 43, the heat dissipation pipe 5, the cooling pipe 43 to the transfer box 41. At the same time, the blast blades 33 blow a large amount of wind into the outer shell 2, because the diameter of the air outlet of the wind focusing cone ring 6 is reduced.

[0042] A high-pressure airflow will be formed in the shell 2 and ejected from the air outlet of the wind-cone ring 6. The high-speed airflow ejected from the air outlet of the wind-cone ring 6 will form a cold air zone, thereby rapidly cooling the heat dissipation pipe 5 in the cold air zone, and the heat-conducting insulating plate 44 quickly transfers the heat on the busbar 1 to the coolant in the cooling pipe 43, thereby achieving a rapid cooling effect on the busbar 1.

[0043] The implementation principle of a busbar heat dissipation device in an embodiment of the present application is: when the busbar 1 is working, the control system starts the drive motor 343, and the drive motor 343 drives the blower blades 33 to rotate through the main shaft 342. The blower blades 33 blow air into the air inlet pipe 31, so that the heat generated by the busbar 1 when working is discharged from the air outlet pipe 32 through the flowing airflow.

[0044] When the main shaft 342 drives the pushing blades 42 to rotate, the pushing blades 42 of the transfer box 41 drive the coolant in the transfer box 41 to circulate in sequence along the transfer box 41, the cooling pipe 43, the heat dissipation pipe 5, the cooling pipe 43 to the transfer box 41. At the same time, the blast blades 33 blow a large amount of wind into the outer shell 2, because the diameter of the air outlet of the wind focusing cone ring 6 is reduced.

[0045] A high-pressure airflow will be formed in the shell 2 and ejected from the air outlet of the wind-cone ring 6. The high-speed airflow ejected from the air outlet of the wind-cone ring 6 will form a cold air zone, thereby rapidly cooling the heat dissipation pipe 5 in the cold air zone, and the heat-conducting insulating plate 44 quickly transfers the heat on the busbar 1 to the coolant in the cooling pipe 43, thereby achieving a rapid cooling effect on the busbar 1.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A busbar heat dissipation device, characterized in that: The invention comprises a busbar (1), a housing (2) is provided on the busbar (1), a blast assembly (3) is provided on the housing (2), the blast assembly (3) comprises an air inlet pipe (31) and an air outlet pipe (32) connected to the housing (2), a blast blade (33) is rotatably provided in the air inlet pipe (31), the blast blade (33) is used to blast air into the housing (2), a driving member (34) is provided on the air inlet pipe (31) for driving the blast blade (33) to rotate, a heat exchange assembly (4) is provided on the housing (2), and the heat exchange assembly (4) is used to absorb heat generated by the busbar (1).

2. A busbar heat dissipation device according to claim 1, characterized in that: The driving member (34) includes a mounting frame (341) arranged in the air inlet pipe (31); a main shaft (342) is rotatably arranged on the mounting frame (341); the blast blade (33) is coaxially arranged on the main shaft (342); a driving motor (343) electrically connected to a control system is arranged on the mounting frame (341); and the main shaft (342) is coaxially arranged on an output shaft of the driving motor (343).

3. A busbar heat dissipation device according to claim 2, characterized in that: The heat exchange assembly (4) includes a transfer box (41) which is arranged on the mounting frame (341) and is hollow inside. The transfer box (41) is filled with cooling liquid. The main shaft (342) rotates through the transfer box (41). Push blades (42) are provided on the main shaft (342) in the transfer box (41). A cooling pipe (43) is provided on the outer shell (2). Both ends of the cooling pipe (43) are respectively connected to the transfer box (41) and are located on both sides of the main shaft (342). A heat-conducting insulating plate (44) is provided on the cooling pipe (43). The heat-conducting insulating plate (44) is in contact with the busbar (1).

4. A busbar heat dissipation device according to claim 3, characterized in that: The cooling pipe (43) located in the housing (2) is in a continuous S-shape.

5. The busbar heat dissipation device according to claim 3, characterized in that: The diameter of the air outlet pipe (32) is smaller than the diameter of the air inlet pipe (31), and a heat dissipation pipe (5) is provided at the air outlet pipe (32), and the heat dissipation pipe (5) is connected to the cooling pipe (43).

6. A busbar heat dissipation device according to claim 5, characterized in that: The air outlet pipe (32) is provided with an air gathering cone ring (6), the inner diameter of which gradually decreases along the direction from the outer shell (2) to the air outlet pipe (32), and the heat dissipation pipe (5) is spiral-shaped and located at the air outlet of the air gathering cone ring (6).

7. The busbar heat dissipation device according to claim 4, characterized in that: A spiral guide plate (7) is provided in the housing (2), the cooling pipe (43) passes through the guide plate (7), and a limiting groove (8) for limiting the movement of the busbar (1) is provided on the guide plate (7).

8. The busbar heat dissipation device according to claim 1, characterized in that: A plurality of heat dissipation fins (9) are provided on the housing (2).

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