A direct current hydrogen production bus duct

Abstract

The application provides a direct-current hydrogen production bus duct, and belongs to the technical field of bus ducts.The bus duct shell is provided with a plurality of through heat dissipation holes one and a plurality of heat dissipation holes two on the top, the heat dissipation holes one are located on one side of the heat dissipation holes two, the heat dissipation holes one and the heat dissipation holes two are distributed in a honeycomb mode, the inside of the bus duct shell is provided with a conductive bar limiting groove, the inside of the conductive bar limiting groove is provided with a conductive bar, and the bottom of the bus duct shell is provided with a bus duct forced heat dissipation assembly.The heat dissipation holes one and the heat dissipation holes two distributed in a honeycomb mode on the bus duct shell can increase the contact area of the conductive bar and the air flowing vertically upward, so that better heat dissipation effect is achieved, under the action of two air flows, the gas flow amount in the heat dissipation holes one and the heat dissipation holes two is increased, and the cooling effect on the bus duct shell is further improved.

Description

Technical Field

[0001] This invention belongs to the field of busbar technology, specifically relating to a DC hydrogen production busbar. Background Technology

[0002] A busbar trunking is a closed metal device used for high-current power transmission and distribution. It is widely used in high-rise buildings, industrial plants, data centers, and other scenarios requiring efficient and stable power supply. It consists of a metal shell, copper or aluminum conductors, insulation materials, and connecting accessories. It can replace the traditional method of multiple cables connected in parallel, achieving intensive and highly reliable power distribution. DC hydrogen production is a core technology that uses direct current to drive the electrolysis of water, decomposing water into hydrogen and oxygen. It is widely used in green hydrogen production and has advantages such as high efficiency, strong controllability, and adaptability to renewable energy fluctuations. DC busbar trunking is required in the DC hydrogen production process. The DC busbar trunking is a key power transmission component in the water electrolysis hydrogen production system. It is mainly used to connect the rectifier power supply and the electrolyzer, undertaking the task of transmitting high-current and high-voltage power. Because its operating environment is often accompanied by high temperature, high humidity, and corrosive gases (such as alkaline vapor), it has extremely high requirements for insulation, heat dissipation, and mechanical strength.

[0003] In the DC hydrogen production process, the busbar generates Joule heat (P=I). 2 The R) is huge, and natural cooling is insufficient, requiring forced air cooling or water cooling systems. Especially in the closed electrolysis workshop, active heat dissipation is the key to prevent hot spot accumulation. However, most existing busbars use fans to circulate air along the inside of the busbar for heat dissipation when using active air cooling. However, due to the characteristics of heat exchange, the air temperature gradually rises as the air flows and absorbs heat from the busbar. The busbars in the later stages cannot effectively dissipate heat, which can easily lead to local overheating. Moreover, dust in the air will gradually clog the air inlet, affecting the subsequent heat dissipation effect and efficiency.

[0004] Therefore, a DC hydrogen production busbar is proposed. Summary of the Invention

[0005] This invention provides a DC hydrogen production busbar, the purpose of which is to solve the problems mentioned above.

[0006] This invention provides a DC hydrogen production busbar, including a busbar housing. The top of the busbar housing has several through-holes (first and second types) and several through-holes (second type). The first and second through-holes are located on one side of each other and are arranged in a honeycomb pattern. A conductive busbar limiting groove is provided inside the busbar housing, and a conductive busbar is installed inside the limiting groove. A forced cooling assembly is provided at the bottom of the busbar housing. The forced cooling assembly includes an air guide plate at the bottom of the busbar housing, an air inlet plate at the bottom of the air guide plate, and a fan shroud at the bottom of the air inlet plate. A fan is installed at the center of the bottom of the cover. The bottom of the air guide plate has through holes at the position directly below the first and second heat dissipation holes. The inner sidewall of the through holes has guide plate one and guide plate two arranged in a mirror image. The bottom of the air inlet plate has a main air inlet slot and two auxiliary air inlets at the position directly below the first and second heat dissipation holes. The main air inlet slot is located between the two auxiliary air inlets. The outer sidewall of the wind-driven cover has guide hood one and guide hood two. Guide hood one is located on one side of guide hood two, and guide hood one and guide hood two are respectively connected to the main air inlet slot directly below the first and second heat dissipation holes.

[0007] Furthermore, several storage slots are mirror-shaped on the inner sidewalls of the first and second heat dissipation through holes. A heat dissipation rib is rotatably connected to the inner sidewall of the storage slot near the bottom. A torsion spring is provided at the rotatable connection between the heat dissipation rib and the storage slot. The heat dissipation rib is made of aluminum alloy and is dynamically sealed to the busbar housing.

[0008] Furthermore, a dust removal assembly is provided at the upper position of the busbar trunking housing. The dust removal assembly includes a horizontal plate, and a T-shaped connecting plate one and a T-shaped connecting plate two are provided at the bottom of the horizontal plate. The T-shaped connecting plate one is located on one side of the T-shaped connecting plate two, and two grooves are symmetrically opened at the bottom position on the outer side wall of both the T-shaped connecting plate one and the T-shaped connecting plate two. A spring is provided on the inner side wall of the groove, and a movable hanging plate is provided at one end of the spring. An inclined surface is opened at the bottom of the movable hanging plate near one side wall.

[0009] Furthermore, the outer wall surface of the busbar trunking shell is coated with a high-performance modified resin coating, which is composed of epoxy resin, mineral volcanic rock accounting for a certain percentage of the total content, stabilizer, thickener, consumable agent, toughening agent, alumina and high-temperature resistant curing agent. By adopting the above technical solutions and utilizing the proportions of different components, the structure of the base resin (such as epoxy, silicone, polyester, etc.) is optimized or reinforced by chemical or physical means, thereby significantly improving its temperature resistance, corrosion resistance, mechanical strength, and electrical insulation. The resulting high-performance modified resin coating can improve the corrosion resistance, high temperature resistance and oxidation prevention, moisture resistance and fouling prevention, and mechanical protection of the busbar trunking shell.

[0010] Furthermore, a total of six conductive bars are provided, and two adjacent conductive bars in the six conductive bars form a group, of which two groups are used in actual use, and the other group is a backup; By adopting the above technical solutions, an emergency handling channel is provided for the bus trunking to cope with sudden situations. The backup setting enables the bus trunking to have redundancy, which can improve the reliability, fault tolerance and availability of the bus trunking. When the main part fails, the redundant part can take over and ensure the continuous operation of the bus trunking.

[0011] Furthermore, both the first and second guide plates are composed of an inclined plate and a vertical plate, and a one-way flow-blocking plate is rotatably connected to the outer wall of the opposite side of the first and second guide plates. The one-way flow-blocking plate is in a horizontal state and abuts against the inner wall of the through hole. A torsion spring is provided at the rotatable connection between the first and second guide plates and the one-way flow-blocking plate. By adopting the above technical solution, the inclined plates in the first and second guide plates form an angle. With the combined action of the two inclined plates, air can be guided, allowing it to flow along the inner walls of the first and second heat dissipation holes, increasing the contact area between the heat dissipation holes and the air, and improving the heat exchange efficiency. The horizontal one-way baffle plate allows air to flow into the first and second heat dissipation holes in one direction, thus promoting gas convection and improving the heat dissipation effect. When the air flows vertically upward inside the first and second heat dissipation holes, a negative pressure is generated on one side of the vertical plate in the first and second guide plates. Under the action of the negative pressure, external air enters the first and second heat dissipation holes. Under the action of the two airflows, the gas flow rate in the first and second heat dissipation holes is increased, improving the cooling effect on the busbar trunking shell.

[0012] Furthermore, the first T-shaped connecting plate and the second heat dissipation through hole are adapted to each other, the second T-shaped connecting plate and the first heat dissipation through hole are adapted to each other, the first T-shaped connecting plate and the second T-shaped connecting plate are parallel, and the outward protrusions of the first T-shaped connecting plate and the second T-shaped connecting plate can pass through the two heat dissipation ribs that are set in a mirror image. By adopting the above technical solution, the first T-shaped connecting plate and the second T-shaped connecting plate can be inserted into the second heat dissipation hole and the first heat dissipation hole respectively during the vertical downward movement, ensuring the smooth insertion of the first T-shaped connecting plate and the second T-shaped connecting plate. This allows the movable hanging plate to move to the bottom of the heat dissipation rib, providing the preconditions for scraping off the dust on the outer wall of the heat dissipation rib during the subsequent upward movement.

[0013] Furthermore, the movable hanging plate and the groove are slidably connected, and the cross-section of the movable hanging plate is a right-angled trapezoid; By adopting the above technical solution, the stability of the movable mounting plate moving along the groove can be guaranteed. When the movable mounting plate is subjected to the squeezing force of the heat dissipation ribs, it can be partially retracted into the groove, which facilitates the smooth vertical insertion of T-shaped connecting plate one and T-shaped connecting plate two into heat dissipation through hole two and heat dissipation through hole one, respectively.

[0014] The beneficial effects of this invention are as follows: 1. This invention utilizes honeycomb-shaped heat dissipation through-holes 1 and 2 on the busbar trunking shell to increase the contact area between the conductive busbar and the vertically upward flowing air, achieving better heat dissipation and shortening the airflow path. This prevents heat accumulation in the air from affecting the heat dissipation effect of the rear section of the busbar trunking. Through the cooperation of the air guide plate, air inlet plate, and fan cover, not only can the active airflow be introduced into the heat dissipation through-holes 1 and 2, but the negative pressure generated by the active airflow can also be used to allow external air to enter the heat dissipation through-holes 1 and 2. Under the action of the two airflows, the gas flow rate in the heat dissipation through-holes 1 and 2 is increased, further improving the cooling effect on the busbar trunking shell.

[0015] 2. The present invention further increases the heat exchange area between the airflow and the busbar trunking by using heat dissipation ribs protruding from the inner sidewalls of heat dissipation through holes one and two, thereby improving the heat dissipation effect. Under the vertical lifting and lowering movement of T-shaped connecting plates one and two, the honeycomb-shaped heat dissipation through holes one and two on the busbar trunking shell can be uniformly cleaned, which not only avoids dust accumulation affecting the heat dissipation effect, but also improves the cleaning efficiency of dust accumulation in the busbar trunking.

[0016] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1This is a schematic diagram of the structure of an embodiment of the present invention (top view). Figure 2 This is a structural schematic diagram (from a low angle) of an embodiment of the present invention. Figure 3 This is a three-dimensional cross-sectional schematic diagram of the busbar trunking housing according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cooperation between the air guide plate and the air inlet plate in an embodiment of the present invention; Figure 5 This is a partial cross-sectional three-dimensional schematic diagram of the forced heat dissipation assembly of the busbar trunking according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the wind turbine cover structure according to an embodiment of the present invention; Figure 7 This is an embodiment of the present invention. Figure 4 Enlarged diagram of point A in the diagram; Figure 8 This is a schematic diagram of the assembly of the busbar trunking housing and the dust removal assembly according to an embodiment of the present invention; Figure 9 This is an embodiment of the present invention. Figure 7 Enlarged diagram of point B in the diagram; Figure 10 This is a partial cross-sectional three-dimensional schematic diagram of the dust removal component according to an embodiment of the present invention; Figure 11 This is an embodiment of the present invention. Figure 10 Enlarged diagram of point C in the diagram; Reference numerals: 1. Busbar housing; 11. Heat dissipation through hole one; 111. Storage slot; 112. Heat dissipation rib; 12. Heat dissipation through hole two; 13. Conductive busbar limiting slot; 14. Conductive busbar; 2. Busbar forced heat dissipation assembly; 21. Air guide plate; 211. Through hole; 212. Flow guide plate one; 213. Flow guide plate two; 214. One-way flow baffle plate; 22. Air inlet plate; 221. Main air inlet slot; 222. Auxiliary air inlet slot; 23. Fan cover; 231. Flow guide cover one; 232. Flow guide cover two; 24. Fan; 3. Dust removal assembly; 31. Horizontal plate; 32. T-shaped connecting plate one; 321. Groove; 322. Spring; 323. Movable hanging plate; 3231. Inclined surface; 33. T-shaped connecting plate two. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Example 1 Reference Figure 1-7 This invention proposes a DC hydrogen production busbar, comprising a busbar shell 1. The outer wall of the busbar shell 1 is coated with a high-performance modified resin coating. This high-performance modified resin coating is composed of epoxy resin, mineral volcanic rock (80% of the total content), stabilizers, thickeners, consumables, toughening agents, alumina, and a high-temperature curing agent. By utilizing different component ratios and through chemical or physical means, the structure of the base resin (such as epoxy, silicone, polyester, etc.) is optimized or composite-reinforced, thereby significantly improving its temperature resistance, corrosion resistance, mechanical strength, and electrical insulation. The resulting high-performance modified resin coating can improve the corrosion resistance, high-temperature resistance, oxidation resistance, moisture resistance, fouling resistance, and mechanical protection of the busbar shell 1. The top of the busbar shell 1 has several through-holes 11 and several through-holes 12. The through-holes 11 are located on one side of the through-holes 12, and the through-holes 11 and 12 are connected to the heat dissipation system. The heat dissipation holes 12 are arranged in a honeycomb pattern. By utilizing the honeycomb-patterned heat dissipation holes 11 and 12, the contact area between the conductive busbar 14 and the vertically upward flowing air can be increased, achieving a better heat dissipation effect. It can also shorten the airflow path and prevent the accumulation of heat in the air from affecting the heat dissipation effect of the rear section of the busbar trunking. The inside of the busbar trunking housing 1 is provided with a conductive busbar limiting groove 13. The conductive busbar 14 is arranged inside the conductive busbar limiting groove 13. There are a total of six conductive busbars 14, and two adjacent conductive busbars 14 form a group. Two groups are used in actual use, and the other group is a backup to provide an emergency handling channel for the busbar trunking to deal with emergencies. The backup setting enables the busbar trunking to have redundancy, which can improve the reliability, fault tolerance and availability of the busbar trunking. When the main part fails, the redundant part can take over to ensure the continuous operation of the busbar trunking. The bottom of the busbar trunking housing 1 is provided with a busbar forced heat dissipation component 2. The forced cooling assembly 2 for the busbar trunking includes an air guide plate 21 located at the bottom of the busbar trunking housing 1. An air inlet plate 22 is located at the bottom of the air guide plate 21, and a fan shroud 23 is located at the bottom of the air inlet plate 22. A fan 24 is located at the center of the bottom of the fan shroud 23. Through holes 211 are provided at the bottom of the air guide plate 21 near the direct below the first and second heat dissipation holes 11 and 12, respectively. A first guide plate 212 and a second guide plate 213 are mirror-image arranged on the inner wall of the through holes 211. Both the first and second guide plates 212 and 213 are composed of inclined plates and vertical plates. One-way baffles 214 are rotatably connected to the outer wall of the side opposite to the flow guide plate 213. The one-way baffles 214 are horizontal and abut against the inner wall of the through hole 211. Torsion springs are installed at the rotatable connections between the flow guide plate 212 and the one-way baffles 214. The inclined plates in the flow guide plate 212 and the flow guide plate 213 form a 30-degree angle. The combined action of the two inclined plates guides the air, allowing it to flow along the inner walls of the heat dissipation holes 11 and 22, thus improving the airflow between the heat dissipation holes 11 and 22. The increased contact area improves heat exchange efficiency, and the horizontal unidirectional flow-blocking plate 214 allows air to flow unidirectionally into the heat dissipation holes 11 and 212, thereby promoting air convection and improving heat dissipation. When air flows vertically upward inside the heat dissipation holes 11 and 212, negative pressure is generated on one side of the vertical plate in the flow-blocking plate 212 and 213. Under the action of negative pressure, external air enters the heat dissipation holes 11 and 212, and the combined effect of the two airflows increases the air circulation within the heat dissipation holes 11 and 212. To improve the cooling effect on the busbar housing 1, the bottom of the air inlet plate 22 is provided with a main air inlet slot 221 and two auxiliary air inlets 222 at a position directly below the heat dissipation through-hole 11 and the heat dissipation through-hole 22. The main air inlet slot 221 is located between the two auxiliary air inlets 222. The outer wall of the wind turbine cover 23 is provided with a flow guide shroud 1 231 and a flow guide shroud 232. The flow guide shroud 1 231 is located on one side of the flow guide shroud 232, and the flow guide shroud 1 231 and the flow guide shroud 232 are respectively connected to the main air inlet slot 221 directly below the heat dissipation through-hole 11 and the heat dissipation through-hole 22. To achieve efficient heat dissipation for the busbar trunking, this embodiment utilizes honeycomb-shaped heat dissipation through-holes 11 and 12 on the busbar trunking housing 1. This increases the contact area between the conductive busbar 14 and the vertically upward-flowing air, resulting in better heat dissipation and shortening the airflow path. This prevents heat accumulation in the air from affecting the heat dissipation effect of the rear section of the busbar trunking. Through the cooperation of the air guide plate 21, air inlet plate 22, and fan cover 23, the active airflow can be guided into the heat dissipation through-holes 11 and 12. Furthermore, the negative pressure generated by the active airflow allows external air to enter the heat dissipation holes 11 and 12. Under the action of the two airflows, the airflow within the heat dissipation holes 11 and 12 is increased, further improving the cooling effect on the busbar trunking shell 1. Specifically, when cooling the busbar trunking, the fan 24 is controlled to operate, drawing air into the fan shroud 23. Under the guidance of the fan shroud 23 and the guide shrouds 231 and 232, the airflow is directed from the main air intake... The air enters through the through hole 211 on the air guide plate 21 through the slot 221. Since the air guide plate 21 has two guide plates 212 and 213 arranged at an angle, the air is guided by these two plates, causing it to flow along the inner walls of the heat dissipation holes 11 and 12. When the air flows vertically upward inside the through hole 211, a negative pressure is generated at the gap between the guide plates 212 and 213 and the inner wall of the through hole 211. Under the action of this negative pressure... This allows external air to enter the heat dissipation through-hole 11 and the heat dissipation through-hole 22. Under the action of the two airflows, the gas flow rate in the heat dissipation through-hole 11 and the heat dissipation through-hole 22 is increased, which improves the cooling effect on the busbar trunking shell 1. As the air flows inside the heat dissipation through-hole 11 and the heat dissipation through-hole 22, the heat generated by the energized busbar 14 is conducted to the busbar trunking shell 1, and the busbar trunking shell 1 exchanges heat with the flowing air. The flowing air absorbs and carries away the heat, thereby cooling the busbar trunking shell 1.

[0020] Example 2 Reference Figure 8-11This invention also proposes a DC hydrogen production busbar, including a busbar housing 1. The top of the busbar housing 1 is provided with several through-holes 11 and several through-holes 12. The through-holes 11 are located on one side of the through-holes 12 and are arranged in a honeycomb pattern. The inside of the busbar housing 1 is provided with a conductive bar limiting groove 13 and a conductive bar 14 is provided inside the conductive bar limiting groove 13. Several receiving grooves 111 are mirror-shaped on the inner sidewalls of the through-holes 111 and 12. A heat dissipation rib 112 is rotatably connected to the inner sidewall of the receiving groove 111 near the bottom. A torsion spring is provided at the rotatable connection between the heat dissipation rib 112 and the receiving groove 111. The heat dissipation rib 112 is made of aluminum alloy and is dynamically sealed to the busbar housing 1. A dust removal assembly 3 is installed at the top of the busbar housing 1. The dust removal assembly 3 includes a horizontal plate 31. A T-shaped connecting plate 32 and a T-shaped connecting plate 33 are installed at the bottom of the horizontal plate 31. The T-shaped connecting plate 32 is located on one side of the T-shaped connecting plate 33. The T-shaped connecting plate 32 is adapted to and cooperates with the second heat dissipation hole 12, and the T-shaped connecting plate 33 is adapted to and cooperates with the first heat dissipation hole 11. The T-shaped connecting plates 32 and 33 are parallel, and their protrusions can pass through the two mirror-shaped heat dissipation ribs 112. This allows the T-shaped connecting plates 32 and 33 to insert into the second heat dissipation hole 12 and the first heat dissipation hole 111 respectively during their vertical downward movement, ensuring smooth insertion of the T-shaped connecting plates 32 and 33. This allows the movable hanging plate 323 to move to the heat dissipation ribs 112. Below 12, to provide the preconditions for scraping off the dust on the outer wall of the heat dissipation rib 112 during the subsequent upward movement, two grooves 321 are symmetrically opened on the outer wall of the T-shaped connecting plate 1 32 and the T-shaped connecting plate 2 33 near the bottom. A spring 322 is provided on the inner wall of the groove 321, and a movable hanging plate 323 is provided at one end of the spring 322. An inclined surface 3231 is opened at the bottom of the movable hanging plate 323 near one side wall. The movable hanging plate 323 and the groove 321 slide together, and the cross section of the movable hanging plate 323 is a right trapezoid, which can ensure the stability of the movable hanging plate 323 moving along the groove 321. When the movable hanging plate 323 is squeezed by the heat dissipation rib 112, it can be partially inserted into the groove 321, so that the T-shaped connecting plate 1 32 and the T-shaped connecting plate 2 33 can be smoothly and vertically inserted into the heat dissipation through hole 2 12 and the heat dissipation through hole 1 11 respectively. To improve the heat dissipation of the busbar trunking while preventing dust accumulation, this embodiment utilizes heat dissipation ribs 112 protruding from the inner walls of heat dissipation through-hole 11 and heat dissipation through-hole 22 to further increase the heat exchange area between the airflow and the busbar trunking, thereby improving the heat dissipation effect. Furthermore, the vertical lifting and lowering movement of the T-shaped connecting plates 32 and 33 allows for unified cleaning of the honeycomb-shaped heat dissipation through-holes 11 and 12 on the busbar trunking housing 1, preventing dust accumulation from affecting the heat dissipation effect. This also improves the cleaning efficiency of dust accumulation in the busbar trunking. Specifically, hold the horizontal plate 31, ensuring it is positioned above the busbar trunking housing 1 and horizontal. Move the horizontal plate 31 downwards, causing the T-shaped connecting plates 32 and 33 on the horizontal plate 31 to move downwards simultaneously, aligning them with the heat dissipation holes 12 and 11. As the T-shaped connecting plates 32 and 33 continue to move downwards, the movable hanging plate 323 and the heat dissipation ribs... When contact is made at 112, since the heat dissipation rib 112 cannot rotate downwards, under the squeezing force of the heat dissipation rib 112 and guided by the inclined surface 3231, part of the movable hanging plate 323 moves into the groove 321 until the movable hanging plate 323 moves to below the heat dissipation rib 112. When the T-shaped connecting plate one 32 and the T-shaped connecting plate two 33 move to the lowest point, the horizontal plate 31 is pulled upwards, and the T-shaped connecting plate one 32 and the T-shaped connecting plate two 33 move upwards. The movable hanging plate 323 then contacts the heat dissipation rib 112. With the bottom in contact, the heat dissipation ribs 112 can rotate upward under the design of the storage slot 111. Under the scraping of the movable hanging plate 323, the dust adsorbed at the bottom of the heat dissipation ribs 112 is scraped off to the top of the movable hanging plate 323 until the dust is removed from the heat dissipation through holes 11 and 2. Since the heat dissipation through holes 11 and 2 are open, the dust adsorption and blockage of the air inlet is greatly avoided. The dust inside the heat dissipation through holes 11 and 2 is cleaned by the dust removal component 3.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A DC hydrogen production busbar, characterized in that: The busbar trunking includes a busbar trunking housing (1), the top of which is provided with several through-holes 1 (11) and several through-holes 2 (12). The through-holes 1 (11) are located on one side of the through-holes 2 (12), and the through-holes 1 (11) and the through-holes 2 (12) are distributed in a honeycomb pattern. The inside of the busbar trunking housing (1) is provided with a conductive bar limiting groove (13), and a conductive bar (14) is provided inside the conductive bar limiting groove (13). The bottom of the busbar trunking housing (1) is provided with a busbar trunking forced heat dissipation assembly (2). The forced heat dissipation assembly (2) of the busbar trunking includes an air guide plate (21) located at the bottom of the busbar trunking housing (1). An air inlet plate (22) is provided at the bottom of the air guide plate (21). A fan shroud (23) is provided at the bottom of the air inlet plate (22). A fan (24) is provided at the center of the bottom of the fan shroud (23). A through hole (211) is provided at the bottom of the air guide plate (21) near the position directly below the first heat dissipation hole (11) and the second heat dissipation hole (12). A flow guide plate (212) and a flow guide plate (213) are mirror-image arranged on the inner side wall of the through hole (211). The air inlet plate (22) The bottom of the device is provided with a main air inlet slot (221) and two auxiliary air inlets slots (222) at the position directly below the heat dissipation through hole one (11) and the heat dissipation through hole two (12). The main air inlet slot (221) is located between the two auxiliary air inlets slots (222). The outer wall of the wind turbine cover (23) is provided with a flow guide cover one (231) and a flow guide cover two (232). The flow guide cover one (231) is located on one side of the flow guide cover two (232), and the flow guide cover one (231) and the flow guide cover two (232) are respectively connected to the main air inlet slot (221) directly below the heat dissipation through hole one (11) and the heat dissipation through hole two (12).

2. The DC hydrogen production busbar according to claim 1, characterized in that: The inner walls of the heat dissipation through hole one (11) and the heat dissipation through hole two (12) are provided with a plurality of storage slots (111) in a mirror manner. A heat dissipation rib (112) is rotatably connected to the inner wall of the storage slot (111) near the bottom position. A torsion spring is provided at the rotatable connection between the heat dissipation rib (112) and the storage slot (111). The heat dissipation rib (112) is made of aluminum alloy and is dynamically sealed to the busbar housing (1).

3. The DC hydrogen production busbar according to claim 1, characterized in that: A dust removal assembly (3) is provided at the top of the busbar housing (1). The dust removal assembly (3) includes a horizontal plate (31). A T-shaped connecting plate one (32) and a T-shaped connecting plate two (33) are provided at the bottom of the horizontal plate (31). The T-shaped connecting plate one (32) is located on one side of the T-shaped connecting plate two (33). Two grooves (321) are symmetrically opened on the outer side wall of the T-shaped connecting plate one (32) and the T-shaped connecting plate two (33) near the bottom. A spring (322) is provided on the inner side wall of the groove (321). A movable hanging plate (323) is provided at one end of the spring (322). An inclined surface (3231) is opened at the bottom of the movable hanging plate (323) near one side wall.

4. A DC hydrogen production busbar according to claim 1, characterized in that: The outer wall of the busbar housing (1) is coated with a high-performance modified resin coating, which is composed of epoxy resin, mineral volcanic rock (which accounts for 80% of the total), stabilizer, thickener, consumable, toughening agent, alumina and high-temperature curing agent.

5. A DC hydrogen production busbar according to claim 1, characterized in that: There are six conductive bars (14) in total, and two adjacent conductive bars (14) form a group, two of which are used in actual use and the other group is a backup.

6. A DC hydrogen production busbar according to claim 1, characterized in that: Both the first guide plate (212) and the second guide plate (213) are composed of an inclined plate and a vertical plate. One-way flow-blocking plates (214) are rotatably connected to the outer walls of the opposite sides of the first guide plate (212) and the second guide plate (213). The one-way flow-blocking plates (214) are in a horizontal state and abut against the inner wall of the through hole (211). Torsion springs are provided at the rotatable connection between the first guide plate (212) and the second guide plate (213) and the one-way flow-blocking plates (214).

7. A DC hydrogen production busbar according to claim 3, characterized in that: The first T-shaped connecting plate (32) and the second heat dissipation through hole (12) are adapted to each other, the second T-shaped connecting plate (33) and the first heat dissipation through hole (11) are adapted to each other, the first T-shaped connecting plate (32) and the second T-shaped connecting plate (33) are parallel, and the protrusions of the first T-shaped connecting plate (32) and the second T-shaped connecting plate (33) can pass through the two heat dissipation ribs (112) that are set in a mirror image.

8. A DC hydrogen production busbar according to claim 3, characterized in that: The movable hanging plate (323) and the groove (321) are slidably connected, and the cross-section of the movable hanging plate (323) is a right trapezoid.

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