An autonomous heat-dissipation waterproof bus duct connecting structure

Abstract

The application relates to the technical field of bus duct devices, in particular to a self-heat-dissipation waterproof bus duct connecting structure, which comprises a dense bus duct, the two sides of the shell of the dense bus duct are symmetrically fixedly connected with mutually-adhered assembling boxes through bolts, ventilation openings are arranged at the front and back ends of the assembling boxes, an exhaust mechanism for blocking the reverse infiltration of external water vapor and accelerating internal heat dissipation is fixedly installed on the inner side of the assembling box, and a discharge mechanism for cleaning residual particulate matters and accumulated moisture on the inner wall is fixedly installed on the inner side of the assembling box. The device can rely on a temperature sensor to monitor the temperature rise state of the bus duct in real time, automatically adjust the rotating plate operating speed and working position according to the temperature change, quickly strengthen the convection heat dissipation effect under high-temperature working conditions, actively dredge and discharge the heat accumulated in the cavities on the two sides of the bus duct, avoid heat retention and accumulation, realize global, dynamic and self-adaptive heat dissipation of the bus duct, and greatly reduce the operating temperature rise of the bus duct.

Description

Technical Field

[0001] This invention relates to the field of busbar trunking technology, specifically to a self-heating and waterproof busbar trunking connection structure. Background Technology

[0002] In industrial low-voltage power distribution systems, I-shaped busbar trunking with a compact housing structure is widely used in factories, underground utility tunnels, and outdoor power distribution corridors due to its high current-carrying capacity and compact layout. The housing of this type of busbar trunking naturally forms lateral cavities on both sides, which are the main areas for heat dissipation and air exchange. Currently, existing technologies for protecting these lateral cavities mostly use fixed ventilation panels or integral sealed covers, which are functionally limited and have many technical shortcomings.

[0003] First, fixed ventilation structures lack adaptive airflow adjustment capabilities. The heat generated by the busbar trunking easily accumulates in the cavities on both sides and cannot dissipate quickly. Excessive local temperature rise not only accelerates the aging of insulation components but also reduces the reliability of conductor connections, threatening the stable operation of the entire power distribution line. Second, fixed ventilation openings are unsuitable for rainy or humid environments. Rainwater and external moisture easily seep into the cavities, forming condensation. This condensation easily penetrates the cavities on both sides of the busbar trunking, causing condensation in the cavities, moisture-induced corrosion of components, and consequently, failures such as reduced insulation and corrosion of metal components. Third, the lateral cavities on both sides of the busbar trunking are narrow and enclosed. Existing structures are not equipped with automated cleaning components. After long-term use, dust and residual moisture easily accumulate on the inner walls. Dust blocking ventilation channels weakens heat dissipation, and continuous moisture retention exacerbates component corrosion. Furthermore, manual cleaning of the narrow cavities leaves many blind spots. Therefore, we propose a self-heating and waterproof busbar trunking connection structure. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a self-heating and waterproof busbar trunking connection structure.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a self-heating and waterproof busbar trunking connection structure, including a compact busbar trunking, wherein the casing of the compact busbar trunking is symmetrically fixed to two sides by bolts and the two sides of the assembly box are provided with ventilation openings at both ends of the assembly box, and an exhaust mechanism for preventing external water vapor from seeping in reverse and accelerating internal heat dissipation is fixedly installed on the inside of the assembly box, and an exhaust mechanism for cleaning residual particles and accumulated moisture on the inner wall is fixedly installed on the inside of the assembly box, wherein the exhaust mechanism and the exhaust mechanism are arranged in sections inside the assembly box and a safe movement gap is reserved.

[0006] Preferably, the exhaust mechanism includes an adjustment component for adjusting the heat dissipation position, and the exhaust mechanism includes a heat dissipation component for accelerating internal air exchange. The adjustment component is drivenly connected to the heat dissipation component and operates synchronously.

[0007] Preferably, the adjustment assembly includes a first motor and a second motor symmetrically installed on the left and right sides of the front end of the assembly box. The output shaft of the first motor is fixedly connected to a threaded rod via a coupling. The two ends of the threaded rod are rotatably connected to the inside of the assembly box via a rotating shaft. The output shaft of the second motor is fixedly connected to a first retaining bar guide rod via a coupling. The two ends of the first retaining bar guide rod are rotatably connected to the inside of the assembly box via a rotating shaft. Multiple movable chambers are slidably connected to the outside of the first retaining bar guide rod. The first retaining bar guide rod can simultaneously realize torque transmission and axial sliding guidance of the movable chambers.

[0008] Preferably, the outer side of the movable compartment has a through hole, the through hole of the movable compartment is horizontally aligned with the axis of the threaded rod, and a threaded sleeve is fixedly connected to the inner side of the through hole of the leftmost or rightmost movable compartment among the plurality of movable compartments. The inner side of the threaded sleeve is threadedly connected to the threaded rod, and the through holes of the remaining movable compartments are clearance-fitted with the threaded rod.

[0009] Preferably, a support frame is fixedly connected to one side of the mobile compartment, and a fixed rotating shaft is fixedly connected to the lower end of the support frame. Circular retaining rings are rotatably connected to the outer side of each fixed rotating shaft. Multiple telescopic rods arranged in the same direction are provided at the lower end of the support frame. The two ends of each telescopic rod are fixedly connected to the circular retaining rings on the outer side of a nearby fixed rotating shaft. The housing of one telescopic rod on one side of the multiple telescopic rods is rotatably connected to the assembly box via a rotating shaft. The telescopic rod can extend and retract synchronously with the displacement of the mobile compartment and drive the remaining mobile compartments to unfold evenly.

[0010] Preferably, a rotating shaft cylinder is rotatably connected to the inner side of the support frame, a worm gear is fixedly connected to the outer side of the rotating shaft cylinder, an electric actuator that can extend to the cavity between the assembly box and the busbar groove is installed on the inner side of the rotating shaft cylinder, a worm is meshed with the outer side of the worm gear, the inner side of the worm is slidably connected to the first guide rod, a rotating plate is fixedly connected to the output shaft of the electric actuator, a guide groove is opened on the outer side of the rotating plate, and a temperature sensor is installed on the inner side of the rotating plate.

[0011] Preferably, the emission mechanism includes an insertion component for adjusting the insertion depth, and an adsorption component for adsorbing dust and moisture, wherein the insertion component and the adsorption component cooperate with each other and extend and retract synchronously.

[0012] Preferably, the front end of the assembly box is fixedly connected to an installation box, the inner side of the installation box is equipped with a third motor, the output shaft of the third motor is fixedly connected to a second guide rod, the rear end of the installation box is fixedly connected to a buffer chamber, the front end of the buffer chamber is fixedly connected to a fixing nut, the inner side of the fixing nut is threaded with a threaded hollow rod, the inner side of the threaded hollow rod is fixedly connected to a sliding groove rod, and the lower end of the buffer chamber is provided with a discharge groove.

[0013] Preferably, the inner side of the slide bar is slidably connected to the second guide bar, and a spring is installed on the inner side of the slide bar. One end of the spring is fixedly connected to the slide bar, and the other end of the spring is fixedly connected to the second guide bar.

[0014] Preferably, the rear end of the slide bar is fixedly connected to a discharge cylinder via a cross bar, the outer side of the discharge cylinder passes through the buffer chamber, an air pump is installed on the inner side of the discharge cylinder, the rear end of the discharge cylinder is fixedly connected to an air extraction pipe, and multiple solenoid valve pipes are provided on the outer side of the air extraction pipe. The input ports of the multiple solenoid valve pipes are respectively aligned with the inner wall of the assembly box, and humidity sensors are provided at the input ports of the multiple solenoid valve pipes.

[0015] Compared with the prior art, the present invention provides a self-heating and waterproof busbar trunking connection structure, which has the following advantages: 1. This invention effectively overcomes the limitations of existing heat dissipation technologies by linking the internal adjustment components of the exhaust mechanism with the heat dissipation components. The first motor, threaded rod, and threaded sleeve work together to form an adaptive linear adjustment structure, which can drive multiple sets of moving chambers to synchronously and evenly unfold with the telescopic rod, achieving flexible adjustment of the overall spacing of the heat dissipation components. This adapts to the heat distribution in different areas of the busbar trunking and specifically matches the heat dissipation location. Simultaneously, the second motor drives the first guide rod to rotate. Relying on the meshing transmission of the worm gear and worm wheel, and in conjunction with the telescopic action of the electric push rod, it drives the rotating plate to form a composite motion of rotation and telescopic movement. The airflow in the cavity is disturbed by the guide groove on the outer side of the rotating plate, forming a controllable directional convection air duct with the ventilation openings at both ends of the assembly box. Unlike traditional fixed passive cooling structures, this device can monitor the temperature rise of the busbar trunking in real time using temperature sensors. It automatically adjusts the rotation speed and working position of the rotating plate according to temperature changes, rapidly enhancing the convective cooling effect under high-temperature conditions. It actively guides and discharges the heat accumulated in the cavities on both sides of the busbar trunking, avoiding heat retention and accumulation. This achieves full-area, dynamic, and adaptive heat dissipation of the busbar trunking, significantly reducing the operating temperature rise of the busbar trunking, effectively avoiding problems such as high-temperature aging and overload failures, and ensuring the long-term stable conductive operation of the busbar trunking.

[0016] 2. This invention achieves adaptive switching between ventilation and waterproofing functions through a dynamic attitude adjustment structure of the exhaust mechanism, completely resolving the functional contradictions of existing technologies. Under normal heat dissipation conditions, the rotating plates are evenly arranged, opening the ventilation channels to ensure normal convection heat dissipation. Under rainy and humid conditions, the adjusting components are linked with the heat dissipation components to precisely fit and seal the ventilation openings at both ends of the assembly box. The remaining rotating plates evenly divide the internal cavity of the assembly box, forming a multi-layer barrier and protection structure, preventing external rainwater and moisture from seeping back into the cavity between the busbar and the assembly box. At the same time, this device can block water vapor infiltration channels through fine adjustment of the rotating plate attitude. Combined with the moisture adsorption function of the exhaust mechanism, it can quickly remove residual moisture and condensate inside the cavity. Unlike traditional single-seal or single-ventilation structures, this invention achieves adaptive switching between "normal ventilation and heat dissipation, and rainy weather sealing and waterproofing," dynamically adapting to complex working conditions such as outdoor and humid factory areas, comprehensively blocking water vapor erosion, and effectively improving the waterproof and moisture-proof performance of the busbar.

[0017] 3. This invention achieves automated dust and moisture removal without dead angles in the cavity between the assembly box and the busbar through the coordinated operation of the insertion component and the adsorption component. The third motor drives the second guide rod to rotate, and with the threaded transmission of the fixing nut and the threaded hollow rod, it drives the slide rod and the rear adsorption component to extend and retract back and forth as a whole, accurately reaching into various narrow areas of the cavity and covering dead angles that traditional cleaning methods cannot reach; at the same time, the spring inside the slide rod can buffer the movement gap in real time, reduce shock and noise, and ensure a smooth and stable extension and retraction process. Relying on the negative pressure generated by the air pump, combined with the multi-component time-opening and closing solenoid valve tube, and the humidity signal of the cavity collected in real time by the humidity sensor, the assembly box inner wall is targeted for zoned adsorption, which can efficiently collect dust particles, accumulated moisture and condensate adhering to the inner wall. The adsorbed debris and moisture are uniformly transported to the buffer chamber and discharged externally through the bottom discharge channel. The entire cleaning process is fully automated and requires no manual intervention. It can routinely remove dust and residual moisture from the cavity, avoiding problems such as corrosion and heat dissipation failure caused by particulate matter accumulation and moisture retention. It continuously keeps the outer cavity of the busbar trunking clean and dry, making it suitable for harsh industrial conditions such as dust and humidity. This significantly reduces equipment maintenance costs and extends the overall service life of the busbar trunking. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the exhaust mechanism of the present invention; Figure 4 This is a schematic cross-sectional view of a portion of the exhaust mechanism of the present invention. Figure 1 ; Figure 5This is a schematic cross-sectional view of a portion of the exhaust mechanism of the present invention. Figure 2 ; Figure 6 This is a schematic cross-sectional view of a portion of the exhaust mechanism of the present invention. Figure 3 ; Figure 7 This is a cross-sectional view of the overall structure of the emission mechanism of the present invention. Figure 1 ; Figure 8 This is a cross-sectional view of the overall structure of the emission mechanism of the present invention. Figure 2 .

[0019] In the diagram: 1. High-density busbar trunking; 2. Assembly box; 3. Exhaust mechanism; 31. Adjustment assembly; 311. First motor; 312. Second motor; 313. Threaded rod; 314. Moving compartment; 315. Threaded sleeve; 316. First guide bar; 317. Support frame; 318. Fixed shaft; 319. Telescopic rod; 32. Heat dissipation assembly; 321. Shaft cylinder; 322. Worm gear; 323. Electric actuator. 324. Rod; 325. Worm gear; 4. Rotating plate; 4. Discharge mechanism; 41. Extension assembly; 411. Mounting box; 412. Third motor; 413. Second guide bar; 414. Buffer chamber; 415. Fixing nut; 416. Threaded hollow rod; 417. Sliding rod; 418. Spring; 42. Adsorption assembly; 421. Discharge cylinder; 422. Air pump; 423. Suction pipe; 424. Solenoid valve pipe. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The following electrical components are all electrically connected via an external PLC controller.

[0022] Please see Figure 1 - Figure 8 A self-heating and waterproof busbar trunking connection structure includes a compact busbar trunking 1. Both sides of the casing of the compact busbar trunking 1 are symmetrically fixed with fitting assembly boxes 2 by bolts. Ventilation openings are provided at both the front and rear ends of the assembly boxes 2. An exhaust mechanism 3 is fixedly installed inside the assembly boxes 2 to prevent external moisture from seeping in and to accelerate internal heat dissipation. An exhaust mechanism 4 is fixedly installed inside the assembly boxes 2 to clean residual particles and accumulated moisture on the inner wall. The exhaust mechanism 3 and the exhaust mechanism 4 are arranged in sections inside the assembly boxes 2 with reserved safe movement gaps.

[0023] In this embodiment, the exhaust mechanism 3 includes an adjustment component 31 for adjusting the heat dissipation position, and a heat dissipation component 32 for accelerating internal air exchange. The adjustment component 31 and the heat dissipation component 32 are connected in a transmission manner and operate synchronously.

[0024] Specifically, the adjustment component 31 provides power output and position adjustment capability for the exhaust mechanism 3, driving the heat dissipation component 32 to complete position and attitude adjustment; the heat dissipation component 32 relies on the power of the adjustment component 31 to achieve compound movement, and combines its own structure to complete airflow guidance and water vapor blocking operations. The two work together to achieve the core functions of independent heat dissipation and waterproofing on the outside of the dense busbar trunking 1.

[0025] In this embodiment, the adjustment component 31 includes a first motor 311 and a second motor 312 symmetrically installed on the left and right sides of the front end of the assembly box 2. The output shaft of the first motor 311 is fixedly connected to a threaded rod 313 via a coupling. The two ends of the threaded rod 313 are rotatably connected to the inside of the assembly box 2 via a rotating shaft. The output shaft of the second motor 312 is fixedly connected to a first clamping bar guide rod 316 via a coupling. The two ends of the first clamping bar guide rod 316 are rotatably connected to the inside of the assembly box 2 via a rotating shaft. Multiple movable chambers 314 are slidably connected to the outside of the first clamping bar guide rod 316. The first clamping bar guide rod 316 can simultaneously realize torque transmission and axial sliding guidance of the movable chambers 314.

[0026] Specifically, the first motor 311 provides power for the rotation of the threaded rod 313; the threaded rod 313 achieves power conversion through threaded transmission, driving the moving chamber 314 to make linear displacement; the second motor 312 provides power for the rotation of the first clamping guide rod 316; the first clamping guide rod 316 transmits torque to drive the rear heat dissipation component to operate on the one hand, and slides and guides all moving chambers 314 on the other hand, constraining the movement trajectory and preventing deviation and jamming; the moving chamber 314, as an intermediate bearing component, receives the linear displacement power and drives the subsequent support frame 317 and heat dissipation component 32 to move synchronously.

[0027] In this embodiment, a through hole is provided on the outer side of the movable compartment 314. The through hole of the movable compartment 314 is horizontally aligned with the axis of the threaded rod 313. A threaded sleeve 315 is fixedly connected to the inner side of the through hole of the leftmost or rightmost movable compartment 314. The inner side of the threaded sleeve 315 is threadedly connected to the threaded rod 313. The through holes of the remaining movable compartments 314 are clearance-fitted with the threaded rod 313.

[0028] Specifically, the through holes on the movable chamber 314 are used to pass through the threaded rod 313, reserving space for component assembly and relative movement; the threaded sleeve 315 and the threaded rod 313 form a threaded transmission pair, which converts the rotational motion of the threaded rod 313 into the linear motion of the movable chamber 314, and is the core transmission component for linear displacement; the through holes of the other movable chambers 314 and the threaded rod 313 adopt clearance fit, which does not hinder the rotation of the threaded rod 313, and can also assist in limiting the movement, ensuring the synchronization of the movement of multiple sets of movable chambers 314.

[0029] In this embodiment, a support frame 317 is fixedly connected to one side of the mobile compartment 314. A fixed rotating shaft 318 is fixedly connected to the lower end of the support frame 317. Circular retaining rings are rotatably connected to the outer side of each fixed rotating shaft 318. Multiple telescopic rods 319 arranged in the same direction are provided at the lower end of the support frame 317. The two ends of each telescopic rod 319 are fixedly connected to the circular retaining rings on the outer side of a nearby fixed rotating shaft 318. The housing of one of the telescopic rods 319 closest to one side is rotatably connected to the assembly box 2 via a rotating shaft. The telescopic rod 319 can extend and retract synchronously with the displacement of the mobile compartment 314 and drive the remaining mobile compartments 314 to unfold evenly.

[0030] Specifically, the support frame 317 is fixed to the outside of the movable compartment 314 to support the fixed rotating shaft 318, the telescopic rod 319, and the overall structure of the heat dissipation assembly; the fixed rotating shaft 318 provides a rotation fulcrum for the circular retaining ring; the circular retaining ring realizes the movable hinge between the fixed rotating shaft 318 and the telescopic rod 319, which can adaptively adjust the mechanism angle; the telescopic rod 319 connects the transmission structures corresponding to each group of movable compartments 314 in series, and the movable compartments 314 on one side extend and retract synchronously when one side of the movable compartment 314 is displaced, pulling the other movable compartments 314 to unfold evenly, and the end telescopic rod 319 is hinged to the assembly box 2 to form an overall motion fulcrum, ensuring smooth and reliable linkage action.

[0031] In this embodiment, a rotating shaft cylinder 321 is rotatably connected to the inner side of the support frame 317, and a worm gear 322 is fixedly connected to the outer side of the rotating shaft cylinder 321. An electric push rod 323 that can extend to the cavity between the assembly box 2 and the dense busbar trough 1 is installed on the inner side of the rotating shaft cylinder 321. A worm 324 is meshed with the outer side of the worm gear 322. The inner side of the worm 324 is slidably connected to the first guide rod 316. A rotating plate 325 is fixedly connected to the output shaft of the electric push rod 323. A guide groove is opened on the outer side of the rotating plate 325, and a temperature sensor is installed on the inner side of the rotating plate 325.

[0032] Specifically, the worm gear 324 receives the torque of the first guide rod 316 and drives the worm wheel 322 to rotate. Simultaneously, it can slide axially along the first guide rod 316 to adapt to changes in the position of the moving chamber 314. The worm wheel 322 is fixedly connected to the rotating cylinder 321, driving the rotating cylinder 321 to rotate synchronously. The rotating cylinder 321 provides a mounting base and rotation fulcrum for the electric actuator 323. The electric actuator 323 performs axial extension and retraction, adjusting the extension length of the rotating plate 325. The rotating plate 325 is a core actuator for heat dissipation and waterproofing, relying on rotation and extension / retraction actions in conjunction with the guide groove to guide airflow and block ventilation openings. The guide groove is used to direct airflow and enhance convective heat dissipation. The temperature sensor collects regional temperature data in real time, providing detection signals for switching of the mechanism's operating conditions.

[0033] In this embodiment, the discharge mechanism 4 includes an insertion component 41 for adjusting the insertion depth and an adsorption component 42 for adsorbing dust and moisture. The insertion component 41 and the adsorption component 42 cooperate with each other and extend and retract synchronously.

[0034] Specifically, the insertion component 41 serves as a motion adjustment unit, driving the adsorption component 42 to complete the forward and backward extension movements, enabling the adsorption component 42 to reach various cleaning areas inside the assembly box 2; the adsorption component 42 serves as a cleaning execution unit, relying on the principle of negative pressure to adsorb particles, moisture and condensation on the inner wall, and the two work synchronously to achieve thorough cleaning of the entire interior of the assembly box 2 without dead angles.

[0035] In this embodiment, the front end of the assembly box 2 is fixedly connected to the mounting box 411, the inner side of the mounting box 411 is equipped with a third motor 412, the output shaft of the third motor 412 is fixedly connected to a second guide rod 413, the rear end of the mounting box 411 is fixedly connected to a buffer chamber 414, the front end of the buffer chamber 414 is fixedly connected to a fixing nut 415, the inner side of the fixing nut 415 is threadedly connected to a threaded hollow rod 416, the inner side of the threaded hollow rod 416 is fixedly connected to a sliding groove rod 417, and the lower end of the buffer chamber 414 is provided with a discharge groove.

[0036] Specifically, the mounting box 411 is used to encapsulate and protect the third motor 412; the third motor 412 provides power for the rotation of the second clip guide rod 413; the second clip guide rod 413 transmits torque and simultaneously guides the sliding guide rod 417; the buffer chamber 414 is a transfer cavity that temporarily stores the adsorbed debris and moisture, and also provides a mounting base for the fixing nut 415 and the discharge cylinder 421; the fixing nut 415 is a stationary threaded component that cooperates with the threaded hollow rod 416 to convert the rotational motion into linear telescopic motion; the threaded hollow rod 416 receives the threaded transmission power and drives the sliding rod 417 to move synchronously; the sliding rod 417 serves as a load-transfer component, connecting the threaded hollow rod 416 and the rear adsorption assembly 42; the discharge groove at the bottom of the buffer chamber 414 provides a centralized discharge channel for debris and moisture.

[0037] In this embodiment, the inner side of the slide bar 417 is slidably connected to the second guide bar 413. A spring 418 is installed on the inner side of the slide bar 417. One end of the spring 418 is fixedly connected to the slide bar 417, and the other end of the spring 418 is fixedly connected to the second guide bar 413.

[0038] Specifically, the slide bar 417 slides axially along the second guide bar 413, ensuring accurate linear motion trajectory through sliding cooperation; the spring 418 is arranged between the slide bar 417 and the second guide bar 413, playing a buffering and shock-absorbing role during sliding, while eliminating the gap between the parts and improving the smoothness of the transmission operation.

[0039] In this embodiment, the rear end of the slide bar 417 is fixedly connected to the discharge cylinder 421 via a cross bar. The outer side of the discharge cylinder 421 passes through the buffer chamber 414. An air pump 422 is installed on the inner side of the discharge cylinder 421. The rear end of the discharge cylinder 421 is fixedly connected to the suction pipe 423. Multiple solenoid valve pipes 424 are provided on the outer side of the suction pipe 423. The inlets of the multiple solenoid valve pipes 424 are respectively aligned with the inner walls of the assembly box 2. Humidity sensors are provided at the inlets of the multiple solenoid valve pipes 424.

[0040] Specifically, the cross bar at the rear end of the slide bar 417 is used to lock and fix the discharge cylinder 421 and reserve space so that particulate matter can be discharged, and the discharge cylinder 421 can extend and retract synchronously with the slide bar 417; the discharge cylinder 421 is arranged through the buffer chamber 414 and is the core cavity for air path and waste transportation, while providing a mounting carrier for the air pump 422 and the suction pipe 423; the air pump 422 generates negative pressure when it operates, providing a power source for the adsorption operation; the suction pipe 423 connects the discharge cylinder 421 with each group of solenoid valve pipes 424 to realize the transportation of negative pressure airflow and adsorbent; the solenoid valve pipes 424 are zoned to correspond to the inner wall of the assembly box 2, and the zoned precise adsorption is realized by on / off control; the humidity sensor detects the local humidity and condensation state in real time, thereby controlling the start and stop of the solenoid valve pipes 424 and the operation timing of the discharge mechanism 4.

[0041] Working principle: During use, the assembly box 2 is symmetrically fixed to both sides of the compact busbar trunking 1 with bolts, so that the assembly box 2 fits tightly against the outer side of the compact busbar trunking 1 housing, completing the overall assembly and fixing. Ventilation openings are reserved at both ends of the assembly box 2 as circulation channels for equipment heat dissipation and water vapor exhaust; the exhaust mechanism 3 and the discharge mechanism 4 are respectively installed on the inside of the assembly box 2. Relying on the coordinated work of the two sets of mechanisms, the compact busbar trunking 1 can achieve autonomous heat dissipation, water vapor barrier, and internal wall particulate matter cleaning functions during operation. The exhaust mechanism 3 is operated in conjunction with the adjustment component 31 and the heat dissipation component 32 to jointly complete the adjustment of the heat dissipation area position, active ventilation and heat dissipation, and external water vapor blocking. The first motor 311 is started, and its output shaft drives the threaded rod 313 to rotate around its own axis inside the assembly box 2 via a coupling. The threaded rod 313 forms a threaded engagement pair with the threaded sleeve 315 fixed inside the outermost movable chamber 314 on one side. Combined with the circumferential limiting effect of the inner wall of the assembly box 2 on the movable chamber 314, it drives the movable chamber 314 to make a lateral linear displacement along the axial direction of the threaded rod 313. The movable chamber 314 synchronously drives the outer fixed support frame 317 to move as a whole. The movable chamber 314 is connected to a circular retaining ring via a fixed rotating shaft 318 at its lower end. Multiple telescopic rods 319 are connected in series with each set of circular retaining rings. When one side of the movable chamber 314 is displaced, the telescopic rods 319 sequentially pull the other movable chambers 314, ultimately causing all movable chambers 314 to extend synchronously and evenly. The fixed rotating shaft 318 and the circular retaining ring rotate with each other, which can complete the overall angle fine adjustment during the displacement of the moving chamber 314, thereby adapting to the usage requirements of different heat dissipation areas of the dense busbar trunking 1 and realizing the adjustment of the overall spacing of the heat dissipation components 32; The second motor 312 is started, and its output shaft drives the first guide rod 316 to rotate. The first guide rod 316 slides with all the moving chambers 314, guiding and limiting all the moving chambers 314 throughout their entire movement. At the same time, the first guide rod 316 drives the worm gear 324, which is slidably mounted on the outside, to rotate synchronously. The worm gear 324 meshes with the worm wheel 322, which in turn drives the worm wheel 322 and the coaxially fixed rotating cylinder 321 to rotate around its own axis. An electric actuator 323 is installed inside the rotating cylinder 321. The output shaft of the electric actuator 323 extends and drives the rotating plate 325 to extend into the cavity between the assembly box 2 and the dense busbar trough 1. A safe clearance is always maintained between the rotating plate 325 and the discharge mechanism 4 to effectively avoid motion interference. Under the combined action of the rotation of the rotating cylinder 321 and the extension and retraction of the electric actuator 323, each set of rotating plates 325 continuously performs compound rotational motion. The airflow is disturbed by the guide grooves on the outer side of the rotating plates 325, dissipating the heat accumulated on both sides of the dense busbar trough 1 and improving overall heat dissipation efficiency. Temperature sensors mounted on the inner side of the rotating plates 325 collect real-time temperature signals inside the assembly box 2 and around the dense busbar trough 1. When a high temperature is detected, the control system drives the rotating plates 325 to rotate faster, forming a directional convection airflow channel with the ventilation openings at both ends of the assembly box 2, quickly removing the heat generated by the dense busbar trough 1. Simultaneously, the rotating plates 325 can adjust their posture according to the environment, preventing external moisture from seeping back into the assembly box 2 through the ventilation openings, achieving moisture barrier and cavity sealing. When operating in a rainy and humid environment, the adjustment component 31 and the heat dissipation component 32 are adjusted in conjunction to make the two sets of rotating plates 325, which are far apart, respectively fit and block the ventilation openings at both ends of the assembly box 2. The remaining rotating plates 325 are arranged in sequence to evenly divide the internal space of the assembly box 2, effectively preventing external rainwater and moisture from seeping into the cavity between the assembly box 2 and the dense busbar 1, thus strengthening the overall waterproof and seepage-proof effect. The humid gas in the cavity between the rotating plates 325 can also be adsorbed by the adsorption component 42. The emission mechanism 4 operates in conjunction with the insertion component 41 and the adsorption component 42 to achieve the adsorption and emission of residual particulate matter and moisture on the inner wall: the third motor 412 installed inside the installation box 411 is activated, and the output shaft of the third motor 412 drives the second retaining bar guide rod 413 to rotate. The second retaining bar guide rod 413 slides and engages with the sliding groove rod 417, driving the sliding groove rod 417 to move axially along the second retaining bar guide rod 413. A spring 418 is installed inside the sliding groove rod 417, and the two ends of the spring 418 are fixedly connected to the sliding groove rod 417 and the second retaining bar guide rod 413 respectively. During the sliding process of the sliding groove rod 417, it plays the role of buffering and shock absorption and eliminating the gap between the parts. A fixing nut 415 is fixedly installed at the front end of the buffer chamber 414. The threaded hollow rod 416 is threadedly connected to the fixing nut 415. The inner side of the threaded hollow rod 416 is fixed to the sliding rod 417 as one piece. Under the action of threaded transmission, the threaded hollow rod 416 and the sliding rod 417 move back and forth synchronously, driving the rear adsorption component 42 to accurately extend into each area inside the assembly box 2, and achieve full-area cleaning without dead corners in the heat dissipation cavity between the assembly box 2 and the dense busbar 1. The discharge cylinder 421 is fixed to the rear end of the slide bar 417 by a cross rod, and the discharge cylinder 421 is installed inside the buffer chamber 414, and its extension and retraction are synchronized with the slide bar 417. The air pump 422 inside the discharge cylinder 421 is started, and the operation of the air pump 422 creates a negative pressure environment inside the suction pipe 423. Multiple sets of solenoid valve pipes 424 are connected to the outside of the suction pipe 423. The input port of each solenoid valve pipe 424 corresponds to the area around the inner wall of the assembly box 2, and each input port of the solenoid valve pipe 424 is equipped with a humidity sensor to collect local humidity and condensation status in real time. The control system opens each set of solenoid valve pipes 424 in a timed manner according to preset logic and in combination with humidity and dirt accumulation signals, and uses negative pressure to adsorb and collect the dust, accumulated moisture and condensate adhering to the inner wall of the assembly box 2. The adsorbed impurities and moisture are sequentially transported to the interior of the buffer chamber 414 through the exhaust pipe 423 and the discharge cylinder 421, and finally discharged outward through the discharge trough opened at the lower end of the buffer chamber 414, so as to avoid long-term accumulation of particulate matter and moisture that corrodes the dense busbar trunking 1 and surrounding supporting components. During normal operation of the compact busbar trunking 1, the temperature sensor monitors the equipment's temperature rise in real time. When the temperature exceeds the limit, the exhaust mechanism 3 automatically adjusts its position and enhances convection cooling while continuously blocking external moisture intrusion. The exhaust mechanism 4, combined with the humidity sensor's detection signal and a preset cycle, automatically reciprocates and extends to routinely remove dust and residual moisture from the assembly box 2. The entire structure operates fully automatically without manual intervention, integrating self-heating, moisture barrier, and dust protection functions. It can stably adapt to complex industrial conditions such as humidity and dust, ensuring the long-term safe and reliable operation of the compact busbar trunking 1.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-heating and waterproof busbar trunking connection structure, comprising a compact busbar trunking (1), characterized in that: The housing of the dense busbar trunking (1) is symmetrically fixed to two sides by bolts with fitting assembly boxes (2). Ventilation openings are provided at both the front and rear ends of the assembly box (2). An exhaust mechanism (3) for blocking external water vapor from seeping in reverse and accelerating internal heat dissipation is fixedly installed on the inner side of the assembly box (2). An exhaust mechanism (4) for cleaning residual particles and accumulated moisture on the inner wall is fixedly installed on the inner side of the assembly box (2). The exhaust mechanism (3) and the exhaust mechanism (4) are arranged in sections inside the assembly box (2) with a reserved safe movement gap. The exhaust mechanism (3) includes an adjustment component (31) for adjusting the heat dissipation position. The adjustment component (31) includes a first motor (311) and a second motor (312) symmetrically installed on the left and right sides of the front end of the assembly box (2). The output shaft of the first motor (311) is fixedly connected to a threaded rod (313) through a coupling. The two ends of the threaded rod (313) are rotatably connected to the inside of the assembly box (2) through a rotating shaft. The output shaft of the second motor (312) is fixedly connected to a first guide rod (316) through a coupling. The two ends of the first guide rod (316) are rotatably connected to the inside of the assembly box (2) through a rotating shaft. The outer side of the first card bar guide rod (316) is slidably connected with multiple movable chambers (314), and the first card bar guide rod (316) can simultaneously realize torque transmission and axial sliding guidance of the movable chambers (314); The discharge mechanism (4) includes an insertion component (41) for adjusting the insertion depth, and an adsorption component (42) for adsorbing dust and moisture. The insertion component (41) and the adsorption component (42) cooperate with each other and extend and retract synchronously. The front end of the assembly box (2) is fixedly connected to the mounting box (411), the inner side of the mounting box (411) is equipped with a third motor (412), the output shaft of the third motor (412) is fixedly connected to a second guide rod (413), the rear end of the mounting box (411) is fixedly connected to a buffer chamber (414), the front end of the buffer chamber (414) is fixedly connected to a fixing nut (415), and the inner side of the fixing nut (415) is threadedly connected to a threaded hollow rod (416). The inner side of the threaded hollow rod (416) is fixedly connected to the sliding rod (417), and the lower end of the buffer chamber (414) is provided with a discharge groove.

2. The self-heating and waterproof busbar trunking connection structure according to claim 1, characterized in that: The exhaust mechanism (3) includes a heat dissipation component (32) for accelerating internal air exchange, and the adjustment component (31) is connected to the heat dissipation component (32) and operates synchronously.

3. The self-heating and waterproof busbar trunking connection structure according to claim 1, characterized in that: The outer side of the movable compartment (314) is provided with a through hole. The through hole of the movable compartment (314) is horizontally aligned with the axis of the threaded rod (313). The inner side of the through hole of the movable compartment (314) located on the leftmost or rightmost side is fixedly connected with a threaded sleeve (315). The inner side of the threaded sleeve (315) is threadedly connected to the threaded rod (313). The through holes of the remaining movable compartments (314) are clearance-fitted with the threaded rod (313).

4. The self-heating and waterproof busbar trunking connection structure according to claim 1, characterized in that: A support frame (317) is fixedly connected to one side of the mobile compartment (314). A fixed rotating shaft (318) is fixedly connected to the lower end of the support frame (317). Circular retaining rings are rotatably connected to the outer side of each fixed rotating shaft (318). Multiple telescopic rods (319) arranged in the same direction are provided at the lower end of the support frame (317). The two ends of each telescopic rod (319) are fixedly connected to the circular retaining rings on the outer side of a nearby fixed rotating shaft (318). The housing of one of the telescopic rods (319) is rotatably connected to the assembly box (2) through a rotating shaft. The telescopic rod (319) can extend and retract synchronously with the displacement of the mobile compartment (314) and drive the other mobile compartments (314) to unfold evenly.

5. The self-heating and waterproof busbar trunking connection structure according to claim 4, characterized in that: The inner side of the support frame (317) is rotatably connected to a rotating cylinder (321), and the outer side of the rotating cylinder (321) is fixedly connected to a worm gear (322). The inner side of the rotating cylinder (321) is equipped with an electric push rod (323) that can be extended to the cavity between the assembly box (2) and the dense busbar (1). The outer side of the worm gear (322) is meshed with a worm (324). The inner side of the worm (324) is slidably connected to the first guide rod (316). The output shaft of the electric push rod (323) is fixedly connected to a rotating plate (325). The outer side of the rotating plate (325) is provided with a guide groove, and the inner side of the rotating plate (325) is equipped with a temperature sensor.

6. The self-heating and waterproof busbar trunking connection structure according to claim 1, characterized in that: The inner side of the slide bar (417) is slidably connected to the second guide bar (413). A spring (418) is installed on the inner side of the slide bar (417). One end of the spring (418) is fixedly connected to the slide bar (417), and the other end of the spring (418) is fixedly connected to the second guide bar (413).

7. The self-heating and waterproof busbar trunking connection structure according to claim 1, characterized in that: The rear end of the slide bar (417) is fixedly connected to the discharge cylinder (421) via a cross bar. The outer side of the discharge cylinder (421) passes through the buffer chamber (414). An air pump (422) is installed on the inner side of the discharge cylinder (421). The rear end of the discharge cylinder (421) is fixedly connected to the suction pipe (423). Multiple solenoid valve pipes (424) are provided on the outer side of the suction pipe (423). The inlets of the multiple solenoid valve pipes (424) are respectively aligned with the inner walls of the assembly box (2). Humidity sensors are provided at the inlets of the multiple solenoid valve pipes (424).

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