High-efficiency heat dissipation cable bridge

Abstract

The invention relates to an efficient heat dissipation cable bridge, and the cable bridge comprises a cable laying frame body which is provided with heat dissipation holes; the photovoltaic cover plate is arranged at the notch of the cable laying frame body in a covering mode, and the photovoltaic cover plate is of a slope roof structure; the heat insulation water tank is arranged on the side, away from the photovoltaic cover plate, of the cable laying frame body, the heat insulation water tank is provided with a water inlet hole, the water inlet hole is communicated with the upper surface of the photovoltaic cover plate, the heat insulation water tank and the photovoltaic cover plate surround the cable laying frame body in the circumferential direction to form a heat dissipation air channel, and the water inlet hole faces the direction where the inclined part of the photovoltaic cover plate is located. According to the invention, rainwater and sunlight are prevented from directly contacting with the cable, and the cable can be efficiently cooled.

Description

Technical Field

[0001] The present application relates to the field of cable arrangement, and in particular to a cable tray with high efficiency in heat dissipation. Background Art

[0002] Cable trays are commonly used supporting and protecting devices for laying cables in power supply systems of electrical equipment. They protect and guide the cables laid in the cable trays.

[0003] In the related technology, such as publication number CN109301778A, an outdoor cable tray with a long service life is disclosed. The cable tray includes a box body and a positioning shell. The box body is roughly a channel steel structure. The positioning shell covers the notch of the sub-box body to prevent rainwater from contacting the cables inside the tray.

[0004] Regarding the above-mentioned related technologies, there is a defect that since the cable is used outdoors and there are no heat dissipation holes on the bridge, the temperature of the cable will be too high under the outdoor sunlight, which may cause the cable to catch fire easily. Summary of the invention

[0005] In order to prevent rain and sunlight from directly contacting the cables while efficiently dissipating heat from the cables, the present application provides a cable tray with efficient heat dissipation.

[0006] The present application provides a cable tray with high efficiency in heat dissipation, which adopts the following technical solution: A cable tray with high efficiency in heat dissipation, comprising: The cable laying frame is provided with heat dissipation holes; A photovoltaic cover plate is arranged to cover the notch of the cable-laying frame, and the photovoltaic cover plate has a sloping roof structure; An insulated water tank is arranged on a side of the cable laying frame away from the photovoltaic cover plate. The insulated water tank is provided with a water inlet hole, and the water inlet hole is communicated with the upper surface of the photovoltaic cover plate. The insulated water tank and the photovoltaic cover plate circumferentially surround the cable laying frame to form a heat dissipation duct, and the water inlet hole faces the direction of the inclined part of the photovoltaic cover plate.

[0007] By adopting the above technical scheme, the photovoltaic cover can absorb sunlight through its own characteristics to prevent sunlight from directly shining on the cable, and the photovoltaic cover can guide rainwater into the insulated water tank, so that the insulated water tank can use the characteristics of water to weaken the heat transferred to the cable from the outside. At the same time, the heat dissipation duct formed will form airflow due to the temperature difference between the inside and the outside, and it can also diffuse the heat dissipated by the cable more quickly, thereby preventing rainwater and sunlight from directly contacting the cable while efficiently dissipating the heat of the cable, thereby better preventing outdoor cable fires. In addition, the direction of the water inlet hole can also prevent sunlight from shining on the water in the insulated water tank, so as to reduce the evaporation and temperature rise of the water in the insulated water tank, so as to better play the insulation effect of the insulated water tank.

[0008] Preferably, an active wind pressure component is provided in the heat dissipation duct.

[0009] By adopting the above technical solution, due to the setting of the active wind pressure component, the air can be accelerated to pass through the heat dissipation duct, so as to more quickly take away the heat dissipated by the cable itself, thereby promoting the heat dissipation of the cable.

[0010] Preferably, the active wind pressure component includes a working pump, a circulation pipe, an impeller, fan blades and a transmission member, the working pump is connected to the photovoltaic cover plate, the working pump is arranged on a side of the insulated water tank away from the cable laying frame, and the working pump is communicated with the insulated water tank; the two ends of the circulation pipe are respectively connected to the working pump and the insulated water tank, the middle part of the circulation pipe is located in the heat dissipation air duct, and the middle part of the circulation pipe is extended along the length direction of the heat dissipation air duct; the impeller is arranged on the middle part of the circulation pipe; the fan blades are rotatably arranged in the heat dissipation air duct; the transmission member connects the impeller and the fan blades.

[0011] By adopting the above technical solution, compared with the method of directly setting a fan in the heat dissipation duct, this design method has the following advantages: firstly, the working pump is not in the heat dissipation duct, so the heat generated by the working pump is not in the heat dissipation duct, which can reduce other unnecessary heat transferred to the cable; secondly, while accelerating the air to pass through the heat dissipation duct, the moving water can better diffuse the heat, so the heat insulation capacity of the insulated water tank is enhanced, thereby promoting the heat dissipation of the cable.

[0012] Preferably, the transmission member includes an output shaft, a driving gear and a driven gear, one end of the output shaft penetrates into the circulation pipe and is connected to the impeller, and the other end is in the heat dissipation duct; the driving gear is sleeved on the part of the output shaft in the heat dissipation duct; the driven gear is connected to the fan blade, and the driven gear and the driving gear are bevel gear meshing.

[0013] By adopting the above technical solution, with the help of the bevel gear matching between the driven gear and the driving gear, when the rotation axis of the impeller is perpendicular to the rotation axis of the blade, the impeller can rotate at a low speed to drive the blade to rotate at a high speed.

[0014] Preferably, the working pump is connected to a spray pipe, and one end of the spray pipe away from the working pump extends to the upper top of the photovoltaic cover plate.

[0015] By adopting the above technical solution, part of the water in the insulating water tank can be sprayed on the upper side of the photovoltaic cover, which can not only clean the photovoltaic cover, but also cool the photovoltaic cover by evaporation of water to maintain the normal operation of the photovoltaic cover.

[0016] Preferably, a baffle block is provided on the upper surface of the photovoltaic cover plate, and the baffle block is extended along the length direction of the heat dissipation duct, and a plurality of the baffle blocks are distributed at intervals along the inclined direction of the photovoltaic cover plate.

[0017] By adopting the above technical solution, due to the setting of the baffle block, the time that water stays on the upper side of the photovoltaic cover can be extended, so the water can better cool the photovoltaic cover, which helps to improve the service life of the photovoltaic cover.

[0018] Preferably, the insulated water tank is connected to a drain valve, a storage water tank, a return pipe, a control valve and a replenishing pipe, the drain valve is communicated with the insulated water tank, the storage water tank is used to be set in a cool place, the return pipe is respectively connected to the storage water tank and the insulated water tank, the control valve is set on the return pipe, one end of the replenishing pipe is connected to the insulated water tank, and the other end is used to connect to an external water source.

[0019] By adopting the above technical scheme, firstly, during raining, excess water can be sent to the storage water tank, so the volume of the insulated water tank can be reduced to reduce the weight of the entire cable tray, thereby reducing the installation requirements for the cable tray; secondly, when the water temperature in the insulated water tank is too high, the water in the insulated water tank is first drained through the drain valve, and then the control valve is opened to introduce the water in the storage water tank into the insulated water tank through the reflux pipe, and then the control valve is closed when the water in the insulated water tank reaches a predetermined value, so that water with a lower temperature can be replenished into the insulated water tank in time to maintain the thermal insulation capacity of the insulated water tank; thirdly, when the water in the storage water tank is insufficient, an external water source can be connected through a replenishing pipe to replenish the insulated water tank with water with a lower temperature in time.

[0020] Preferably, a refrigeration air conditioner is provided at the upstream of the heat dissipation air duct, the refrigeration air conditioner is connected to the photovoltaic cover plate, and a sealing plate is provided at the air outlet of the heat dissipation air duct at the downstream.

[0021] By adopting the above technical solution, the electric energy obtained by the photovoltaic cover can be supplied to the refrigeration and air conditioning. The cold air generated by the refrigeration and air conditioning can make the gas temperature in the heat dissipation duct lower, so it can promote heat dissipation through gas flow and temperature difference, thereby more efficiently dissipating the heat of the cable.

[0022] Preferably, there are two heat dissipation ducts which are not connected to each other, the sealing plates of the two heat dissipation ducts are arranged opposite to each other, a diversion baffle is provided at the air outlet of the heat dissipation duct away from the sealing plate, a plurality of diversion pipes are connected and provided on one side of the diversion baffle away from the heat dissipation duct, and the directions of the plurality of diversion pipes are distributed hemispherically.

[0023] By adopting the above technical solution, the gas leaving the shunt pipe can insulate both ends of the cable tray in the length direction, so the heat transfer in the areas without insulation water tanks and photovoltaic cover panels can be weakened, thereby dissipating the heat of the cable more efficiently.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The photovoltaic cover can absorb sunlight through its own characteristics to prevent direct sunlight from shining on the cables. The photovoltaic cover can also guide rainwater into the insulated water tank, so that the insulated water tank can weaken the heat transferred from the outside to the cables with the help of the characteristics of water. At the same time, the heat dissipation duct formed will form airflow due to the temperature difference between the inside and the outside, which can also diffuse the heat dissipated by the cables more quickly, thereby preventing rainwater and sunlight from directly contacting the cables and dissipating the heat of the cables efficiently, thereby better preventing outdoor cable fires. In addition, the direction of the water inlet can also prevent sunlight from shining on the water in the insulated water tank, so as to reduce the evaporation and temperature rise of the water in the insulated water tank, so as to better play the heat insulation role of the insulated water tank; 2. Compared with the method of directly setting a fan in the heat dissipation duct, this design method, firstly, the working pump is not in the heat dissipation duct, so the heat generated by the working pump is not in the heat dissipation duct, which can reduce other unnecessary heat transferred to the cable; secondly, while accelerating the air to pass through the heat dissipation duct, the moving water can better diffuse the heat, so the heat insulation capacity of the insulated water tank is enhanced, thereby promoting the heat dissipation of the cable; BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is an overall structural diagram of the cable tray in the embodiment of the present application.

[0025] Figure 2 It is a schematic diagram made to reflect the specific structure of the active wind pressure component in the embodiment of the present application.

[0026] Figure 3It is a schematic diagram made in the embodiment of the present application to reflect the coordination relationship between the refrigeration air conditioner and the active wind pressure component in the heat dissipation duct.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Cable laying frame; 11. Heat dissipation hole; 2. Photovoltaic cover; 21. Spray pipe; 22. Flow block; 3. Insulated water tank; 31. Water inlet hole; 4. Heat dissipation duct; 41. Refrigeration and air conditioning; 42. Sealing plate; 43. Diverter baffle; 44. Diverter pipe; 5. Active wind pressure assembly; 51. Working pump; 52. Circulation pipe; 53. Impeller; 54. Fan blade; 55. Transmission member; 551. Output shaft; 552. Driving gear; 553. Driven gear; 6. Drain valve; 61. Storage water tank; 62. Return pipe; 63. Control valve; 64. Supplementary pipe. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] The embodiment of the present application discloses a cable tray with high efficiency in heat dissipation.

[0030] Reference Figure 1 The cable bridge with efficient heat dissipation includes a cable laying frame 1, a photovoltaic cover 2 and an insulating water tank 3. The side wall of the cable laying frame 1 is provided with a heat dissipation hole 11, and a plurality of heat dissipation holes 11 are arranged, and the plurality of heat dissipation holes 11 are evenly distributed along the length direction of the cable laying frame 1; the photovoltaic cover 2 is covered at the notch of the cable laying frame 1, and the photovoltaic cover 2 is a sloping roof structure so as to guide rainwater to both sides; the insulating water tank 3 is arranged on the side of the cable laying frame 1 away from the photovoltaic cover 2, and the insulating water tank 3 is provided with a water inlet hole 31, which is connected with the upper surface of the photovoltaic cover 2, and the insulating water tank 3 and the photovoltaic cover 2 circumferentially surround the cable laying frame 1 to form a heat dissipation air duct 4, and the water inlet hole 31 faces the direction of the inclined part of the photovoltaic cover 2.

[0031] Reference Figure 1 The working principle is as follows: the photovoltaic cover 2 can absorb sunlight through its own characteristics to prevent sunlight from directly shining on the cable, and the photovoltaic cover 2 can guide rainwater into the insulated water tank 3, so that the insulated water tank 3 can use the characteristics of water to weaken the heat transferred to the cable from the outside. At the same time, the heat dissipation duct 4 formed will form an airflow due to the temperature difference between the inside and the outside, and it can also diffuse the heat dissipated by the cable more quickly, thereby preventing rainwater and sunlight from directly contacting the cable while efficiently dissipating the heat of the cable, thereby better preventing the cable from catching fire outdoors. In addition, the direction of the water inlet 31 can also prevent sunlight from shining on the water in the insulated water tank 3, so as to reduce the evaporation and temperature rise of the water in the insulated water tank 3, so the heat insulation effect of the insulated water tank 3 can also be better exerted.

[0032] Reference Figure 1 and Figure 2 In order to promote the heat dissipation of the cable by accelerating the flow rate of the heat dissipation duct 4, an active wind pressure component 5 is provided in the heat dissipation duct 4. Specifically, the active wind pressure component 5 includes a working pump 51, a circulation pipe 52, an impeller 53, a fan blade 54 and a transmission member 55. The working pump 51 is connected to the photovoltaic cover 2 to work with the help of the electric energy of the photovoltaic cover 2. The working pump 51 is arranged on the side of the insulated water tank 3 away from the cable laying frame 1, and the working pump 51 is connected to the insulated water tank 3; the two ends of the circulation pipe 52 are respectively connected to the working pump 51 and the insulated water tank 3, the middle part of the circulation pipe 52 is located in the heat dissipation duct 4, and the middle part of the circulation pipe 52 is extended along the length direction of the heat dissipation duct 4; the impeller 53 is arranged on the middle part of the circulation pipe 52; the fan blade 54 is rotatably arranged in the heat dissipation duct 4; the transmission member 55 connects the impeller 53 and the fan blade 54.

[0033] Reference Figure 1 and Figure 2 The active wind pressure component 5 has the following advantages. First, the working pump 51 is not in the heat dissipation duct 4, so the heat generated by the working pump 51 is not in the heat dissipation duct 4, which can reduce other unnecessary heat transferred to the cable; second, while accelerating the air to pass through the heat dissipation duct 4, the moving water can better diffuse the heat, so the heat insulation capacity of the insulated water tank 3 is enhanced, thereby promoting the heat dissipation of the cable.

[0034] Reference Figure 1 and Figure 2 Because the rotation axis of the fan blade 54 is perpendicular to the rotation axis of the impeller 53, and the rotation speed of the impeller 53 is relatively low, in order to adapt to this structure, the transmission member 55 includes an output shaft 551, a driving gear 552 and a driven gear 553. One end of the output shaft 551 penetrates into the circulation pipe 52 and is connected to the impeller 53, and the other end is in the heat dissipation duct 4; the driving gear 552 is sleeved on the part of the output shaft 551 that is in the heat dissipation duct 4; the driven gear 553 is connected to the fan blade 54, and the driven gear 553 and the driving gear 552 are bevel gear meshing. With the help of the bevel gear cooperation between the driven gear 553 and the driving gear 552, when the rotation axis of the impeller 53 is perpendicular to the rotation axis of the fan blade 54, the impeller 53 can rotate at a low speed to drive the fan blade 54 to rotate at a high speed.

[0035] Reference Figure 1The temperature of the photovoltaic cover 2 will also rise during long-term use. In order to cool the photovoltaic cover 2, the following settings are correspondingly arranged. The working pump 51 is connected to a spray pipe 21. The end of the spray pipe 21 away from the working pump 51 extends to the upper top of the photovoltaic cover 2. Then, part of the water in the insulating water tank 3 can be sprayed on the upper side of the photovoltaic cover 2. Therefore, the photovoltaic cover 2 can be cleaned and the photovoltaic cover 2 can be cooled by the evaporation of water, thereby maintaining the normal operation of the photovoltaic cover 2. In addition, in order to extend the time that water stays on the upper side of the photovoltaic cover 2, a baffle block 22 is provided on the upper surface of the photovoltaic cover 2. The baffle block 22 extends along the length direction of the heat dissipation duct 4, and multiple baffle blocks 22 are spaced apart along the inclination direction of the photovoltaic cover 2, so that water can better cool the photovoltaic cover 2, thereby helping to improve the service life of the photovoltaic cover 2.

[0036] Reference Figure 1 In order to reduce the volume of the insulated water tank 3 and keep the water in the insulated water tank 3 at a lower temperature, the following settings are correspondingly arranged: the insulated water tank 3 is connected to a drain valve 6, a storage water tank 61, a return pipe 62, a control valve 63 and a replenishing pipe 64; the drain valve 6 is connected to the insulated water tank 3; the storage water tank 61 is arranged in a cool place; the return pipe 62 is connected to the storage water tank 61 and the insulated water tank 3 respectively; the control valve 63 is arranged on the return pipe 62; one end of the replenishing pipe 64 is connected to the insulated water tank 3, and the other end is connected to an external water source.

[0037] Reference Figure 1 The advantages of the above structure are as follows: First, during rain, excess water can be sent to the storage water tank 61, so the volume of the insulated water tank 3 can be reduced to reduce the weight of the entire cable tray, thereby reducing the installation requirements for the cable tray; second, when the water temperature in the insulated water tank 3 is too high, the water in the insulated water tank 3 is first drained through the drain valve 6, and then the control valve 63 is opened and the water in the storage water tank 61 is introduced into the insulated water tank 3 through the reflux pipe 62, and then the control valve 63 is closed when the water in the insulated water tank 3 reaches a predetermined value, so the water with a lower temperature can be replenished into the insulated water tank 3 in time to maintain the heat insulation capacity of the insulated water tank 3; third, when the water in the storage water tank 61 is insufficient, an external water source can also be connected through the replenishing pipe 64 to replenish the insulated water tank 3 with water with a lower temperature in time.

[0038] Reference Figure 1 and Figure 3In order to allow the gas in the heat dissipation duct 4 to promote heat dissipation through temperature difference, a refrigeration air conditioner 41 is arranged at the upstream of the heat dissipation duct 4, and the refrigeration air conditioner 41 is connected to the photovoltaic cover 2. The air outlet of the heat dissipation duct 4 at the downstream is provided with a sealing plate 42. The electric energy obtained by the photovoltaic cover 2 can be supplied to the refrigeration air conditioner 41, and the cold air generated by the refrigeration air conditioner 41 is directly used as the gas source of the heat dissipation duct 4. Therefore, it can promote heat dissipation through the flow of gas and the temperature difference, so that the cable can be cooled more efficiently.

[0039] Reference Figure 1 and Figure 3 Since the end of the cable tray is usually where the cable is connected to an electronic device, the photovoltaic cover 2 and the heat-insulating tank 3 cannot cover the end of the cable tray, and the following configuration is correspondingly arranged: the inner bottom of the heat-insulating tank 3 is in contact with the cable-laying frame 1, so that there are two heat-dissipating ducts 4 that are not connected to each other, and the sealing plates 42 of the two heat-dissipating ducts 4 are arranged opposite to each other. A diversion baffle 43 is arranged at the air outlet of the heat-dissipating duct 4 away from the sealing plate 42, and a plurality of diversion pipes 44 are arranged on the side of the diversion baffle 43 away from the heat-dissipating duct 4. The directions of the plurality of diversion pipes 44 are distributed in a hemispherical manner, and the gas leaving the diversion pipe 44 will diffuse to the surroundings to insulate the two ends of the cable tray in the length direction, so that the heat transfer amount in the area not surrounded by the heat-insulating tank 3 and the photovoltaic cover 2 can be weakened, thereby more efficiently dissipating the heat for the cable.

[0040] The implementation principle of an efficient heat dissipation cable tray in the embodiment of the present application is as follows: the photovoltaic cover 2 can absorb sunlight through its own characteristics to prevent sunlight from directly shining on the cable, and the photovoltaic cover 2 can guide rainwater into the insulated water tank 3, so that the insulated water tank 3 can use the characteristics of water to weaken the heat transferred to the cable from the outside. At the same time, the heat dissipation duct 4 formed will form an airflow due to the temperature difference between the inside and the outside, and it can also diffuse the heat dissipated by the cable more quickly, thereby preventing rainwater and sunlight from directly contacting the cable while efficiently dissipating the heat of the cable, thereby better preventing outdoor cable fires. In addition, the direction of the water inlet 31 can also prevent sunlight from shining on the water in the insulated water tank 3, so as to reduce the evaporation and temperature rise of the water in the insulated water tank 3, so the heat insulation effect of the insulated water tank 3 can also be better exerted.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cable tray with high efficiency in heat dissipation, characterized by: include: The cable laying frame (1) is provided with heat dissipation holes (11); A photovoltaic cover plate (2) is arranged to cover the notch of the cable-laying frame (1), and the photovoltaic cover plate (2) is in a sloping roof structure; An insulating water tank (3) is arranged on a side of the cable-laying frame (1) away from the photovoltaic cover plate (2); the insulating water tank (3) is provided with a water inlet hole (31); the water inlet hole (31) is connected to the upper surface of the photovoltaic cover plate (2); the insulating water tank (3) and the photovoltaic cover plate (2) circumferentially surround the cable-laying frame (1) to form a heat dissipation duct (4); the water inlet hole (31) faces the direction of the inclined portion of the photovoltaic cover plate (2).

2. The cable tray with high heat dissipation efficiency according to claim 1 is characterized in that: An active wind pressure component (5) is provided in the heat dissipation air duct (4).

3. The cable tray with high efficiency heat dissipation according to claim 2 is characterized in that: The active wind pressure component (5) comprises a working pump (51), a circulation pipe (52), an impeller (53), a fan blade (54) and a transmission member (55). The working pump (51) is connected to the photovoltaic cover plate (2). The working pump (51) is arranged on a side of the insulating water tank (3) away from the cable laying frame (1). The working pump (51) is connected to the insulating water tank (3); the two ends of the circulation pipe (52) are respectively connected to the working pump (51) and the insulating water tank (3); the middle part of the circulation pipe (52) is located in the heat dissipation duct (4), and the middle part of the circulation pipe (52) is extended along the length direction of the heat dissipation duct (4); the impeller (53) is arranged on the middle part of the circulation pipe (52); the fan blade (54) is rotatably arranged in the heat dissipation duct (4); and the transmission member (55) connects the impeller (53) and the fan blade (54).

4. The cable tray with high heat dissipation efficiency according to claim 3 is characterized in that: The transmission member (55) comprises an output shaft (551), a driving gear (552) and a driven gear (553); one end of the output shaft (551) penetrates into the circulation pipe (52) and is connected to the impeller (53), and the other end is located in the heat dissipation duct (4); the driving gear (552) is sleeved on the portion of the output shaft (551) located in the heat dissipation duct (4); the driven gear (553) is connected to the fan blade (54), and the driven gear (553) and the driving gear (552) are bevel gears meshing.

5. The cable tray with high efficiency heat dissipation according to claim 3 is characterized in that: The working pump (51) is connected to a spray pipe (21), and one end of the spray pipe (21) away from the working pump (51) extends to the top of the upper side of the photovoltaic cover plate (2).

6. The cable tray with high heat dissipation efficiency according to claim 5, characterized in that: A baffle block (22) is provided on the upper surface of the photovoltaic cover plate (2), the baffle block (22) is extended along the length direction of the heat dissipation duct (4), and a plurality of the baffle blocks (22) are distributed at intervals along the inclination direction of the photovoltaic cover plate (2).

7. The cable tray with high heat dissipation efficiency according to claim 1 is characterized in that: The insulated water tank (3) is connected to a drain valve (6), a storage water tank (61), a return pipe (62), a control valve (63) and a replenishing pipe (64); the drain valve (6) is connected to the insulated water tank (3); the storage water tank (61) is used to be arranged in a cool place; the return pipe (62) is respectively connected to the storage water tank (61) and the insulated water tank (3); the control valve (63) is arranged on the return pipe (62); one end of the replenishing pipe (64) is connected to the insulated water tank (3) and the other end is used to connect to an external water source.

8. The cable tray with high heat dissipation efficiency according to claim 2, characterized in that: A refrigeration air conditioner (41) is provided upstream of the heat dissipation air duct (4), the refrigeration air conditioner (41) is connected to the photovoltaic cover plate (2), and a sealing plate (42) is provided at the air outlet located downstream of the heat dissipation air duct (4).

9. The cable tray with high heat dissipation efficiency according to claim 8, characterized in that: The heat dissipation air ducts (4) are two and are not connected to each other. The sealing plates (42) of the two heat dissipation air ducts (4) are arranged opposite to each other. A diversion baffle (43) is arranged at the air outlet of the heat dissipation air duct (4) away from the sealing plate (42). A plurality of diversion pipes (44) are arranged on one side of the diversion baffle (43) away from the heat dissipation air duct (4). The directions of the plurality of diversion pipes (44) are distributed in a hemispherical manner.

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