A low-voltage DC busbar with high waterproof performance

Abstract

The present invention discloses a low-voltage DC busbar trunking with high waterproof performance, which relates to the field of busbar trunking. It includes a busbar trunking, and a busbar trunking cover is arranged above the busbar trunking. An upper sealing shell is arranged on the upper surface of the busbar trunking cover in a splicing manner, and a lower sealing shell is arranged on the outer periphery of the bottom of the busbar trunking in a splicing manner. The bottom of the upper sealing shell and the upper surface of the lower sealing shell are attached and kept sealed, and an upper chamber is arranged inside the upper sealing shell; the waterproof structure covering the whole outside of the busbar trunking and the busbar trunking cover is formed between the upper sealing shell and the lower sealing shell of the present invention, which improves the waterproof effect on the busbar trunking. When water flows through the rubber channel, due to the action of water pressure, the rubber channel will be extruded towards the inner wall of the rectangular groove, so that the sealing performance is stronger and the waterproof effect is better. Moreover, even after the rubber channel ages, this part of water pressure can still extrude the rubber channel towards the inner wall of the rectangular groove to maintain a good waterproof effect.

Description

Technical Field

[0001] The present invention relates to the field of bus ducts, and particularly to a low-voltage DC bus duct with high waterproof performance. Background Art

[0002] When existing bus ducts are placed outdoors, their use is indeed vulnerable to the influence of rainwater, resulting in moisture ingress inside the bus ducts, which in turn leads to risks such as reduced insulation performance, short circuits, and even equipment damage. To address this issue, some bus ducts adopt a casting type to enhance their waterproof performance. However, although this casting-type bus duct can effectively prevent water ingress, its material and structure often make it relatively sensitive to changes in ambient temperature. In a high-temperature environment, the casting material is prone to expansion or softening, resulting in a decline in its sealing performance. In a low-temperature environment, the material may become rigid or even crack, also affecting its waterproof effect. In addition, changes in ambient temperature may also affect the electrical performance inside the bus duct, such as conductivity and insulation performance, thereby affecting the safe and stable operation of the entire power system. As for the commonly used bus ducts, their waterproof design is not ideal. Although the humidity in the air has little impact on their operation when these bus ducts are used indoors, once placed in an outdoor environment, especially when exposed to rainwater for a long time, their waterproof performance is weak, which will cause problems such as moisture ingress inside the bus ducts and a decline in insulation performance, posing a threat to the safety of the power system.

[0003] Therefore, it is necessary to propose a low-voltage DC bus duct with high waterproof performance to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a low-voltage DC bus duct with high waterproof performance to solve the problems that when the bus duct is placed in an outdoor environment, especially when exposed to rainwater for a long time, its waterproof performance is weak, which will cause problems such as moisture ingress inside the bus duct and a decline in insulation performance, posing a threat to the safety of the power system.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A low-voltage DC bus duct with high waterproof performance, including a bus duct, a bus duct cover is arranged above the bus duct, an upper sealing shell is arranged on the upper surface of the bus duct cover in a splicing manner, a lower sealing shell is arranged on the outer periphery of the bottom of the bus duct in a splicing manner, and the bottom of the upper sealing shell and the upper surface of the lower sealing shell are attached and kept sealed;

[0006] An upper chamber is arranged inside the upper sealing shell for storing water, a lower chamber is arranged inside the lower sealing shell, and a rectangular groove and a drainage groove are respectively arranged on the upper and lower surfaces of the lower sealing shell, and both the rectangular groove and the drainage groove are communicated with the inside of the lower chamber;

[0007] The lower surface of the upper sealing shell is fixedly provided with a rubber channel. The rubber channel is in a rectangular frame structure. The bottom of the rubber channel is inserted into the rectangular groove, and the upper end of the rubber channel communicates with the inside of the upper chamber.

[0008] Preferably, a temperature sensor is installed on the inner wall of the lower chamber, and a solenoid valve is arranged in the drain trough.

[0009] Preferably, a floating plate is arranged in the lower chamber. The floating plate is in a rectangular frame structure, and the inner and outer circumferential surfaces of the rectangular frame structure are respectively attached to the corresponding inner walls of the lower chamber. The floating plate is provided with round holes. There are multiple round holes, and the multiple round holes are equidistantly distributed along the track of the rectangular frame structure and penetrate through the upper and lower surfaces of the floating plate at the same time.

[0010] Preferably, a water receiving hole is arranged on the upper surface of the upper sealing shell. The lower end of the water receiving hole communicates with the upper chamber. There are multiple water receiving holes, and the multiple water receiving holes are arranged in a rectangular array.

[0011] Preferably, a filter layer is arranged inside the upper chamber, and the outer periphery of the filter layer is movably attached to the inner wall of the upper chamber.

[0012] Preferably, a spring is fixedly arranged on the bottom surface of the upper chamber. The upper end of the spring is fixedly connected to the bottom surface of the filter layer. A slag discharge groove is arranged on the outer periphery of the upper end of the upper sealing shell. One end of the slag discharge groove communicates with the upper chamber, and the slag discharge groove is located above the filter layer.

[0013] Preferably, the filter layer is in a wavy structure.

[0014] Preferably, a lid is arranged in an opening and closing manner above the upper sealing shell.

[0015] Preferably, an electrical box is installed on the side surface of the lower sealing shell, and a DC battery, a controller, and a radiator are placed inside the electrical box.

[0016] Preferably, a copper plate is arranged in the busbar chute, and a rectangular groove for the copper plate to pass through movably is arranged on the lower sealing shell.

[0017] The technical effects and advantages of the present invention:

[0018] 1. The upper sealing shell and the lower sealing shell of the present invention form a waterproof structure covering the whole outside of the busbar chute and the busbar chute cover body, increasing the waterproof effect on the busbar chute. When water flows through the rubber channel, due to the action of water pressure, the rubber channel will be extruded towards the inner wall of the rectangular groove, so that the sealing performance is stronger and the waterproof effect is better. And even after the rubber channel ages, this part of the water pressure can still extrude the rubber channel towards the inner wall of the rectangular groove, maintaining a good waterproof effect;

[0019] 2. The upper and lower sealing shells of the present invention are respectively arranged in a spliced manner on the corresponding busbar trough cover body and busbar trough, which can be directly applied to the existing busbar trough without replacing a new type of busbar trough to increase the waterproof effect of the busbar trough, saving costs and facilitating popularization;

[0020] 3. In order to balance the heat dissipation effect of the busbar trough in the present invention, a lower chamber is arranged inside the lower sealing shell, and water is also stored in the lower chamber. When the busbar trough generates heat, this part of the heat can be absorbed by the water in the lower chamber, achieving a good heat dissipation effect;

[0021] 4. Since the amount of water stored in the upper chamber is relatively large, the water in the upper chamber can replenish the lower chamber multiple times, achieving the purpose of continuous heat dissipation;

[0022] 5. The temperature sensor in the present invention can monitor the water temperature in the lower chamber. When the monitored water temperature exceeds the set maximum threshold, the solenoid valve is controlled to open, enabling the high-temperature water in the lower chamber to automatically drain from the drain trough, avoiding the phenomenon that the heat dissipation of the busbar trough is affected when the water temperature is too high and cannot be automatically drained;

[0023] 6. In the present invention, since the floating plate has a certain isolation effect on the upper and lower water layers, it also blocks the mixing of the water replenished from the upper chamber to the lower chamber with the hot water about to be discharged in the original lower chamber, enabling the hot water in the lower chamber to be drained completely, and the cold water in the upper chamber is basically not discharged, improving the utilization rate of cold water during the heat dissipation of the busbar trough;

[0024] 7. When it rains, rainwater can replenish the upper chamber through the water receiving holes, making full use of natural resources;

[0025] 8. When the filter layer moves upward, the impurities on the surface of the filter layer can be pushed towards the slag discharge trough and discharged, achieving the purpose of automatic impurity cleaning without manual maintenance and with low maintenance costs;

[0026] 9. When the filter layer vibrates, the impurity particles trapped in the void structure on the upper surface of the filter layer can be shaken off and discharged from the slag discharge trough, extending the service life of the filter layer while maintaining the filtering effect of the filter layer on rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a perspective view of the low-voltage DC busbar trough with high waterproofness of the present invention;

[0028] Figure 2 is a schematic structural diagram of another perspective view of the low-voltage DC busbar trough with high waterproofness of the present invention;

[0029] Figure 3 is a schematic diagram of the busbar trough, upper shell and lower shell of the present invention;

[0030] Figure 4 Cross-sectional view of the low-voltage DC busbar groove with high waterproof performance of the present invention;

[0031] Figure 5 Of the present invention Figure 4 Schematic enlarged view of the structure at position A in

[0032] In the figure: 1, busbar groove; 2, copper plate; 3, busbar groove cover body; 4, upper sealing shell; 5, lower sealing shell; 501, rectangular groove; 601, upper chamber; 602, lower chamber; 603, water receiving hole; 604, rubber channel; 605, drainage groove; 606, solenoid valve; 607, temperature sensor; 608, floating plate; 609, round hole; 610, electrical box; 611, filter layer; 612, spring; 613, slag discharge groove; 614, lid. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] The present invention provides a kind of low-voltage DC busbar groove with high waterproof performance as shown in Figure 1 -5 figures, including a busbar groove 1, a busbar groove cover body 3 is arranged above the busbar groove 1. Both the busbar groove 1 and the busbar groove cover body 3 are of the prior art, and a copper plate 2 is arranged inside the busbar groove 1, which will not be elaborated here.

[0035] In order to solve the problems that when the busbar groove is placed in an outdoor environment, especially when it is exposed to rainwater for a long time, its waterproof performance is weak, which will cause problems such as the interior of the busbar groove getting damp and the insulation performance decreasing, threatening the safety of the power system, in the present invention, an upper sealing shell 4 is arranged on the upper surface of the busbar groove cover body 3, and a lower sealing shell 5 is arranged on the outer periphery of the bottom of the busbar groove 1. The bottom of the upper sealing shell 4 and the upper surface of the lower sealing shell 5 are attached and kept sealed; a waterproof structure covering the whole outside of the busbar groove 1 and the busbar groove cover body 3 is formed between the upper sealing shell 4 and the lower sealing shell 5, increasing the waterproof effect on the busbar groove 1.

[0036] Furthermore, the upper sealing shell 4 and the lower sealing shell 5 are respectively arranged on the corresponding busbar groove cover body 3 and the busbar groove 1 in a spliced manner. Therefore, the applicable range is relatively wide, and it can be directly applied to the already used busbar groove 1 without having to replace the new model of the busbar groove 1 in order to increase the waterproof effect of the busbar groove 1, saving costs and being convenient for popularization.

[0037] Considering that in the prior art, the copper plate 2 in the busbar trunking 1 is used to transmit a large current, which easily generates a large amount of heat, and the busbar trunking 1 itself needs to be sealed and cannot be provided with heat dissipation structures such as heat dissipation holes. Therefore, the heat is not easily dissipated. Therefore, in order to balance the heat dissipation effect of the busbar trunking 1 in the present invention, a lower chamber 602 is provided inside the lower sealing shell 5, and water is also stored in the lower chamber 602. When the busbar trunking 1 generates heat, this part of the heat can be absorbed by the water in the lower chamber 602, achieving a good heat dissipation effect.

[0038] Considering that a continuous heat dissipation effect needs to be provided for the busbar trunking 1, therefore, a rectangular groove 501 and a drain groove 605 are respectively provided on the upper and lower surfaces of the lower sealing shell 5, and both the rectangular groove 501 and the drain groove 605 are communicated with the inside of the lower chamber 602. An upper chamber 601 is provided inside the upper sealing shell 4, and water is stored in the upper chamber 601. The amount of water stored in the upper chamber 601 is relatively large. Therefore, the water in the upper chamber 601 can be replenished into the lower chamber 602 multiple times. When the water in the upper chamber 601 replenishes the lower chamber 602, opening the drain groove 605 can make the water in the upper chamber 601 flow into the lower chamber 602; when the water in the lower chamber 602 absorbs enough heat, opening the drain groove 605 allows the water with heat to be discharged from the drain groove 605, and then the water in the upper chamber 601 can continuously supply the lower chamber 602, achieving the purpose of continuous heat dissipation.

[0039] In order to automatically determine the timing when the water temperature in the lower chamber 602 reaches a relatively high level and needs to be discharged, a temperature sensor 607 is installed on the inner wall of the lower chamber 602, and a solenoid valve 606 is provided in the drain groove 605; the temperature sensor 607 can monitor the water temperature in the lower chamber 602. When the monitored water temperature exceeds the set maximum threshold, the solenoid valve 606 is controlled to open, allowing the high-temperature water in the lower chamber 602 to be automatically discharged from the drain groove 605, avoiding the phenomenon that the heat dissipation of the busbar trunking 1 is affected when the water temperature is too high and cannot be automatically discharged.

[0040] In actual use, a drain pipe can be connected to the drain groove 605, and the drain pipe can discharge the water in the lower chamber 602 to a fixed position for discharge.

[0041] In the present invention, an electrical box 610 is also installed on the side of the lower sealing shell 5. A DC battery, a controller, and a radiator are placed inside the electrical box 610. The DC battery is used to supply power to mechanisms such as the solenoid valve 606 and the temperature sensor 607, and the radiator is used to dissipate heat from the electrical structures inside the electrical box 610. The DC battery, the controller, and the radiator are all common prior art technologies and will not be elaborated here; during operation, the controller is connected between the temperature sensor 607 and the solenoid valve 606. When the temperature sensor 607 monitors that the water temperature in the lower chamber 602 exceeds the set maximum threshold, the solenoid valve 606 can be controlled to open through the controller, achieving the purpose of automatic control.

[0042] Since the water in the upper chamber 601 can be replenished into the lower chamber 602 multiple times. In the prior art, when the upper chamber 601 is directly communicated with the lower chamber 602, when the hot water in the lower chamber 602 is discharged outwards, the cold water in the upper chamber 601 will simultaneously replenish into the lower chamber 602, and a part of the cold water will be mixed with the hot water, resulting in a phenomenon that a part of the cold water is directly discharged along with the hot water or a part of the hot water still remains undischarged. After new cold water is replenished into the lower chamber 602, the temperature of this part of the cold water is actually higher than that of the cold water in the upper chamber 601. Therefore, when cooling the busbar 1, the heat dissipation efficiency is greatly reduced. In order to improve the utilization rate of cold water when cooling the busbar 1, a floating plate 608 is provided in the lower chamber 602 in the present invention. The floating plate 608 has a rectangular frame structure, and the inner and outer surface of the rectangular frame structure are respectively attached to the corresponding inner wall of the lower chamber 602. When the water in the lower chamber 602 is discharged to the outside through the drain groove 605, the water level in the lower chamber 602 drops, and the water in the upper chamber 601 simultaneously replenishes into the lower chamber 602. This part of the water pushes the upper surface of the floating plate 608, causing the floating plate 608 to descend along the height direction of the lower chamber 602. Since the floating plate 608 has a certain isolation effect on the upper and lower water layers, it blocks the mixing of the water replenished from the upper chamber 601 into the lower chamber 602 and the hot water about to be discharged in the original lower chamber 602, enabling the hot water in the lower chamber 602 to be discharged completely, and the cold water in the upper chamber 601 basically not to be discharged, improving the utilization rate of cold water when the busbar 1 dissipates heat.

[0043] The floating plate 608 is provided with round holes 609. There are multiple round holes 609, and the multiple round holes 609 are equidistantly distributed along the trajectory of the rectangular frame structure, and the round holes 609 penetrate through the upper and lower surfaces of the floating plate 608 at the same time. When the floating plate 608 is pushed to the bottom of the lower chamber 602, since the round holes 609 communicating the upper and lower surfaces of the floating plate 608 are provided on the floating plate 608, the water above and below the floating plate 608 is communicated to a certain extent, and the floating plate 608 can gradually reset to the upper part of the lower chamber 602 by using its own buoyancy.

[0044] It should be noted that the diameter of the round holes 609 is small, and only a small part of the water can enter the bottom of the floating plate 608 from the round holes 609 when the water in the upper chamber 601 enters the lower chamber 602 and pushes the floating plate 608 to descend, reducing the loss of cold water.

[0045] Considering that there are two installation arrangements for the busbar trunking 1, indoors and outdoors; for the arrangement of the busbar trunking 1 indoors, a water inlet pipe can be connected to the upper sealing shell 4, and the water inlet pipe is connected to the nearest water source to supplement water into the upper chamber 601. Alternatively, an existing water level sensor can be provided inside the upper chamber 601 to automatically supplement water into the upper chamber 601 when the water level in the upper chamber 601 drops to a certain level, which is practical and convenient.

[0046] For the case where the busbar trunking 1 is arranged outdoors, a water receiving hole 603 is provided on the upper surface of the upper sealing shell 4. The lower end of the water receiving hole 603 communicates with the upper chamber 601. A plurality of water receiving holes 603 are provided, and the plurality of water receiving holes 603 are arranged in a rectangular array. When it rains, rainwater can be supplemented into the upper chamber 601 through the water receiving holes 603, making full use of natural resources. Additionally, a pipe for supplementing water into the upper chamber 601 can be provided on the upper sealing shell 4 as needed, which will not be elaborated here.

[0047] A rubber channel 604 is fixedly provided on the lower surface of the upper sealing shell 4. The rubber channel 604 has a rectangular frame structure. The bottom of the rubber channel 604 is inserted into the rectangular groove 501, and the upper end of the rubber channel 604 communicates with the inside of the upper chamber 601. During operation, the water in the upper chamber 601 will be supplemented into the lower chamber 602 through the rubber channel 604. Since the situation of water leakage to the busbar trunking 1 needs to be considered, in the present invention, the bottom of the rubber channel 604 is inserted into the rectangular groove 501, so that the water flowing out of the rubber channel 604 can directly flow into the lower chamber 602 without leaking into the busbar trunking 1.

[0048] Furthermore, when water flows through the rubber channel 604, due to the action of water pressure, the rubber channel 604 will be pressed against the inner wall of the rectangular groove 501, resulting in stronger sealing and better waterproof effect. Moreover, even after the rubber channel 604 ages, this part of the water pressure can still press the rubber channel 604 against the inner wall of the rectangular groove 501 to maintain a good waterproof effect.

[0049] In the above case where the busbar trunking 1 is arranged outdoors, a water receiving hole 603 is provided on the upper surface of the upper sealing shell 4, and the water receiving hole 603 is used to receive rainwater into the upper chamber 601 for supplementation. Therefore, a filter layer 611 is provided inside the upper chamber 601. The outer periphery of the filter layer 611 is movably attached to the inner wall of the upper chamber 601. When rainwater enters the upper chamber 601, it will pass through the filter layer 611 for filtration to prevent impurities from entering the upper chamber 601 and causing blockage and other problems.

[0050] Furthermore, a spring 612 is fixedly provided on the bottom surface of the upper chamber 601, and the upper end of the spring 612 is fixedly connected to the bottom surface of the filter layer 611. A slag discharge groove 613 is provided on the outer periphery of the upper end of the upper sealing shell 4, and one end of the slag discharge groove 613 is connected to the upper chamber 601, and the slag discharge groove 613 is located above the filter layer 611; since the impact force of rainwater is sometimes large and sometimes small, and the flow rate is unstable, when the rainwater entering the water receiving hole 603 impacts the surface of the filter layer 611, it will compress the spring 612. When the force of rainwater becomes smaller, the spring 612 is reset, forming a phenomenon that the filter layer 611 moves back and forth up and down. When the filter layer 611 moves upward, it can push and discharge impurities on the surface of the filter layer 611 to the slag discharge groove 613, thereby achieving the purpose of automatically cleaning impurities, without manual maintenance, and low maintenance cost.

[0051] Furthermore, since the impact force of rainwater changes rapidly, the filter layer 611 usually moves back and forth up and down at a relatively fast speed, that is, the filter layer 611 has a certain shaking phenomenon. When the filter layer 611 shakes, the impurity particles mixed in the void structure on the upper surface of the filter layer 611 can be shaken off and discharged from the slag discharge groove 613, thereby extending the service life of the filter layer 611 while maintaining the filtering effect of the filter layer 611 on rainwater.

[0052] In actual use, the filter layer 611 has a wavy structure, which is more conducive to the impurities on the surface of the filter layer 611 moving to the slag discharge groove 613.

[0053] It should be noted that the filter layer 611 may use a composite filter layer structure of a filter mesh, an activated carbon layer, and a filter cotton layer, which will not be described in detail here.

[0054] A cover 614 is provided on the upper sealing shell 4 in an openable manner for regular manual maintenance or overhaul.

[0055] In the present invention, a rectangular groove for the copper plate 2 to move through is provided on the lower sealing shell 5, and the rectangular groove has a wall structure, which is used to separate the water and the copper plate 2 in the lower chamber 602, and achieves the purpose of water-electricity separation. In actual use, the lower sealing shell 5 can also be set as a concave frame structure, which is more practical, and there is no need to worry about the contact between water and the copper plate 2. It can be set according to actual needs, and the principle is the same, so it will not be repeated here.

Claims

1. A low-voltage DC bus duct with high waterproofness, comprising a bus duct (1), a bus duct cover (3) being arranged above the bus duct (1), characterized in that: An upper sealing shell (4) is spliced ​​on the upper surface of the bus duct cover (3), a lower sealing shell (5) is spliced ​​on the bottom periphery of the bus duct (1), and the bottom of the upper sealing shell (4) and the upper surface of the lower sealing shell (5) are in contact with each other and remain sealed; An upper chamber (601) is provided inside the upper sealed shell (4), and the upper chamber (601) is used to store water. A lower chamber (602) is provided inside the lower sealed shell (5), and rectangular grooves (501) and drainage grooves (605) are provided on upper and lower surfaces of the lower sealed shell (5), respectively, and the rectangular grooves (501) and drainage grooves (605) are both connected to the interior of the lower chamber (602); A rubber channel (604) is fixedly provided on the lower surface of the upper sealing shell (4), the rubber channel (604) being in a rectangular frame structure, the bottom of the rubber channel (604) being inserted into the rectangular groove (501), and the upper end of the rubber channel (604) being in communication with the interior of the upper chamber (601); A floating plate (608) is arranged in the lower chamber (602), and the floating plate (608) is in a rectangular frame structure, and the inner and outer circle surfaces of the rectangular frame structure are respectively attached to the corresponding inner walls of the lower chamber (602), and a circular hole (609) is arranged on the floating plate (608). There are multiple circular holes (609), and the multiple circular holes (609) are distributed at equal distances along the trajectory of the rectangular frame structure, and the circular holes (609) simultaneously penetrate the upper and lower surfaces of the floating plate (608).

2. The highly waterproof low-voltage DC bus duct according to claim 1, characterized in that: A temperature sensor (607) is installed on the inner wall of the lower chamber (602), and a solenoid valve (606) is provided in the drainage groove (605).

3. The highly waterproof low-voltage DC bus duct according to claim 1, characterized in that: The upper surface of the upper sealing shell (4) is provided with a water receiving hole (603), the lower end of the water receiving hole (603) is connected to the upper chamber (601), and a plurality of the water receiving holes (603) are provided, and the plurality of water receiving holes (603) are distributed in a rectangular array.

4. The highly waterproof low-voltage DC bus duct according to claim 1, characterized in that: A filter layer (611) is disposed inside the upper chamber (601), and the periphery of the filter layer (611) is movably attached to the inner wall of the upper chamber (601).

5. The highly waterproof low-voltage DC bus duct according to claim 4, characterized in that: A spring (612) is also fixedly arranged on the bottom surface of the upper chamber (601), and the upper end of the spring (612) is fixedly connected to the bottom surface of the filter layer (611). A slag discharge groove (613) is arranged on the outer periphery of the upper end of the upper sealing shell (4), and one end of the slag discharge groove (613) is connected to the upper chamber (601). The slag discharge groove (613) is located above the filter layer (611).

6. The highly waterproof low-voltage DC bus duct according to claim 4, characterized in that: The filter layer (611) has a wavy structure.

7. The highly waterproof low-voltage DC bus duct according to claim 1, characterized in that: A cover (614) is provided on the upper sealing shell (4) in an openable and closable manner.

8. The highly waterproof low-voltage DC bus duct according to claim 1, characterized in that: An electrical box (610) is installed on the side of the lower sealed shell (5), and a DC battery, a controller, and a radiator are placed inside the electrical box (610).

9. The highly waterproof low-voltage DC bus duct according to claim 1, characterized in that: A copper plate (2) is arranged in the bus duct (1), and a rectangular groove for the copper plate (2) to movably pass through is arranged on the lower sealing shell (5).

Images