Modular primary and secondary fusion complete ring network box

Abstract

This invention relates to the field of power distribution equipment technology and discloses a modular integrated primary and secondary ring main unit, including a box body. A ventilation and dustproof filter is detachably connected to one side of the top of the box body. Two mounting brackets are fixedly connected to the front and rear sides of the top of the box body. Two electromagnetic drive slides are slidably mounted on the inner side of the mounting brackets. A cleaning plate is fixed to the top of the two electromagnetic drive slides, and the lower surface of the cleaning plate contacts the upper surface of the ventilation and dustproof filter. By employing a reusable cooling fan-driven dehumidification pump mechanism, no additional dehumidification power equipment is required, effectively reducing the overall energy consumption. A one-way valve, in conjunction with the reciprocating motion of a piston, draws humid air from inside the box. After being dried by a desiccant, the air is directionally blown onto the electrical component area, forming a circulating dehumidifying airflow. This suppresses condensation inside the box and prevents moisture damage to the primary and secondary electrical equipment, reducing insulation and potentially causing short circuits.

Description

Technical Field

[0001] This invention relates to the field of power distribution equipment technology, specifically to a modular integrated primary and secondary ring network box. Background Technology

[0002] Integrated primary and secondary ring main units (IMUs) serve as core outdoor power distribution equipment for power distribution network segmentation, load branching, and fault isolation. They integrate primary switching elements with secondary measurement, control, protection, and communication modules, offering advantages such as high integration and convenient on-site installation. They are widely used in outdoor scenarios such as urban roads, residential power distribution, and rural power grid upgrades. Outdoor IMUs are exposed to the open environment year-round, enduring complex climatic conditions such as dust, rain, diurnal temperature variations, and high humidity fog. The primary and secondary electrical components inside the IMU have stringent requirements for ventilation, heat dissipation, moisture protection, and dust prevention. Existing conventional modular integrated primary and secondary ring main units generally suffer from several technical defects that are difficult to overcome in actual operation, hindering equipment reliability.

[0003] Firstly, existing ring main units generally have ventilation openings on the top of the enclosure and are equipped with dust filters to allow for air convection and heat dissipation, and to prevent external dust from entering the enclosure. However, outdoor dust, willow catkins, fallen leaves, and other debris accumulate on the filter surface over time, easily causing blockage of the mesh. Once the ventilation channel is blocked, the heat generated by the switches, transformers, and secondary monitoring and control devices inside the enclosure cannot be dissipated in time, which will continuously raise the ambient temperature inside the enclosure, accelerate the aging of the insulation of electronic components, and in severe cases, cause malfunctions of protection devices and overheating of switches. Currently, the industry's conventional solution to the problem of filter clogging is for maintenance personnel to regularly disassemble and clean or replace the filters on-site. This approach has significant drawbacks: Firstly, outdoor power distribution points are scattered and cover a wide area, so regular inspections and filter cleaning would significantly increase manpower and transportation maintenance costs. Secondly, the inspection intervals for some points are long, and the filters may be completely clogged between maintenance visits, resulting in poor heat dissipation for extended periods. Furthermore, in outdoor environments with high humidity and significant temperature differences between day and night, moisture can easily accumulate inside the enclosure, forming condensation. This condensation, adhering to the surfaces of primary and secondary components, can reduce insulation performance and lead to safety accidents such as leakage, short circuits, and malfunctions of monitoring and control equipment.

[0004] Therefore, a solution is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a modular integrated primary and secondary ring network box, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a modular primary and secondary integrated ring mesh box, comprising a box body, a ventilation and dustproof filter detachably connected to one side of the top of the box body, two mounting brackets fixedly connected to the front and rear sides of the top of the box body, two electromagnetic drive slides slidably mounted on the inner side of the mounting brackets, a cleaning plate fixedly fixed to the top of the two electromagnetic drive slides, the lower surface of the cleaning plate contacting the upper surface of the ventilation and dustproof filter, a fixed cylinder fixedly connected to the inner top of the box body, a movable plate slidably connected inside the fixed cylinder, a touch rod fixedly connected to the side of the movable plate facing the box door, and a trigger switch fixedly connected to the inner end of the fixed cylinder away from the box door, the trigger switch being electrically connected to the electromagnetic drive slides. When the box door on the outside of the box body is closed, the box door presses against the touch rod and drives the movable plate to slide along the inner wall of the fixed cylinder until the movable plate touches the trigger switch, energizing the electromagnetic drive slides and driving the cleaning plate to reciprocate along the surface of the ventilation and dustproof filter, cleaning and preventing clogging of the ventilation and dustproof filter.

[0007] Preferably, a support frame is fixedly connected to the inner top of the housing. Multiple drive gears are rotatably connected to the outer side of the support frame via bearings. An adjusting plate is fixedly connected to the end of the shaft of each drive gear. Two mounting shells are fixedly connected to the outer side of the support frame. A drive rack is slidably connected to the inner side of each mounting shell. A shape memory alloy drive rod is installed inside the mounting shell. One end of the shape memory alloy drive rod is connected to the drive rack. When the internal temperature of the housing rises, the shape memory alloy drive rod is heated and elongates, pushing the drive rack to slide along the mounting shell, thereby driving multiple drive gears to rotate synchronously. This causes each adjusting plate to deflect synchronously with its corresponding drive gear, adjusting the ventilation flow of the heat dissipation channel.

[0008] Preferably, the tooth surface of the drive rack meshes with the outer sides of the plurality of drive gears, and the output end of the shape memory alloy drive rod is fixedly connected to the end of the drive rack.

[0009] Preferably, a spring is sleeved on the outside of the pressure rod, one end of the spring is fixedly connected to the side of the movable plate facing the box door, and the other end of the spring is fixedly connected to the inner end face of the fixed cylinder near the box door.

[0010] Preferably, two cooling fans are installed at the bottom of the housing. The cooling fans are connected to a dehumidification assembly via a transmission component. The dehumidification assembly includes a connecting shell, a fixed shell, a drive crank wheel, a swing rod, and a rubber piston. The drive crank wheel is rotatably connected to the inside of the connecting shell. One end of the swing rod is hinged to the eccentric position of the drive crank wheel, and the other end of the swing rod is hinged to the end of the rubber piston. The rubber piston is slidably sealed to the inner wall of the connecting shell. A connecting pipe and an installation pipe are sequentially connected to the outer surface of the connecting shell. The fixed shell is fixedly connected to the outside of the connecting shell, and the connecting pipe is connected to the outer surface of the fixed shell. The air outlet of the installation pipe is connected to the inside of the fixed shell.

[0011] Preferably, the transmission assembly includes two synchronous pulleys and a synchronous belt. One of the synchronous pulleys is fixedly sleeved on the output shaft of the cooling fan, and the other synchronous pulley is rotatably connected to the bottom of the connecting housing. The other synchronous pulley is coaxially fixedly connected to the bottom end of the drive crank wheel, and the two synchronous pulleys are connected by the synchronous belt.

[0012] Preferably, both the connecting pipe and the mounting pipe are equipped with one-way valves, the two one-way valves have opposite conduction directions, and the interior of the fixing shell is filled with desiccant.

[0013] Preferably, the two mounting brackets are symmetrically arranged along the length of the ventilation and dustproof filter, and each mounting bracket is provided with a linear slide rail on its inner side. The electromagnetic drive slide is slidably mounted on the corresponding linear slide rail, and the lower surface of the cleaning plate is provided with cleaning bristles adapted to the mesh of the ventilation and dustproof filter.

[0014] Preferably, the air outlet of the connecting pipe is inclined toward the electrical module area inside the box, and the air inlet of the connecting pipe is toward the lower space inside the box, forming a bottom-up circulating dehumidifying air path under the combined action of the cooling fan and the dehumidifying component.

[0015] This invention provides a modular integrated primary and secondary ring network enclosure. It has the following advantages: 1. This invention features a door-linked automatic filter cleaning structure. Closing the door automatically cleans the ventilation filter, and opening the door automatically resets the mechanism and cuts off power. No manual disassembly and cleaning of the filter is required, ensuring unobstructed ventilation channels and preventing filter blockage caused by dust accumulation. Simultaneously, a memory alloy passive temperature control structure is employed, which adaptively adjusts the ventilation opening based on temperature deformation characteristics to match the heat dissipation airflow. This achieves increased ventilation at high temperatures and reduced ventilation at low temperatures, minimizing external moisture intrusion and significantly reducing manual maintenance workload.

[0016] 2. This invention adopts a reusable cooling fan power-linked dehumidification pump mechanism, eliminating the need for additional dehumidification power equipment, effectively reducing the overall energy consumption of the machine. Through a one-way valve and piston reciprocating motion, humid air inside the chamber is extracted, dried by a desiccant, and then directionally blown to the electrical component area, forming a circulating dehumidifying airflow, suppressing condensation inside the chamber, and preventing the possibility of moisture damage to primary and secondary electrical equipment, resulting in reduced insulation and short circuit damage. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 This is a schematic diagram of the ventilation and dustproof filter structure of the present invention; Figure 4 This is a schematic diagram of the drive gear structure of the present invention; Figure 5 This is a schematic diagram of the cleaning plate structure of the present invention; Figure 6 This is a schematic diagram of the synchronous pulley structure of the present invention; Figure 7 for Figure 5 Enlarged view in A; Figure 8 This is a schematic diagram of the connecting shell structure of the present invention; Figure 9 This is a cross-sectional view of the fixed cylinder of the present invention.

[0018] Among them, 1. Box body; 21. Ventilation and dustproof filter; 22. Mounting bracket; 23. Cleaning plate; 24. Electromagnetic drive slide; 31. Fixed cylinder; 32. Contact rod; 33. Spring; 34. Movable plate; 35. Trigger switch; 41. Connecting housing; 42. Fixing housing; 43. Connecting pipe; 44. Connecting pipe; 45. Synchronous pulley; 46. Mounting pipe; 47. Drive crank wheel; 48. Swing rod; 49. Rubber piston; 51. Support frame; 52. Adjusting plate; 53. Drive gear; 54. Mounting housing; 55. Drive rack; 56. Shape memory alloy drive rod; 6. Cooling fan. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 9 As shown in the figure, the modular integrated primary and secondary ring main unit described in this embodiment includes a housing 1. The housing 1 adopts a modular sheet metal assembly structure and has standardized installation interfaces for a primary switching unit and a secondary measurement and control protection unit reserved inside, meeting the modular assembly and maintenance requirements of the integrated ring main unit. A ventilation and heat dissipation vent is provided at the top of the housing 1. A ventilation and dustproof filter 21 is detachably connected to the edge of the ventilation and heat dissipation vent via a snap-fit ​​structure. The ventilation and dustproof filter 21 adopts a multi-layer composite filter structure, which ensures ventilation while blocking external dust from entering the housing 1. The snap-fit ​​assembly structure facilitates individual disassembly and replacement or deep cleaning in the future. Mounting brackets 22 are fixedly connected to the front and rear sides of the ventilation and dustproof filter 21 at the top of the housing 1, respectively. The two mounting brackets 22 are along the ventilation and dustproof filter. The components 21 are arranged symmetrically along their length. Each mounting bracket 22 has a linear slide rail on its inner side. An electromagnetic drive slide 24 is slidably mounted on the linear slide rail. Two electromagnetic drive slides 24 are respectively arranged on both ends of the ventilation and dustproof filter 21. A cleaning plate 23 is fixedly connected to the top of the two electromagnetic drive slides 24. The cleaning plate 23 spans horizontally above the ventilation and dustproof filter 21. The lower surface of the cleaning plate 23 is densely covered with flexible nylon cleaning bristles. The bottom of the bristles elastically fits against the upper surface of the ventilation and dustproof filter 21. When the electromagnetic drive slide 24 moves back and forth along the linear slide rail, it can drive the cleaning plate 23 to move synchronously. The bristles sweep away the dust adhering to the surface of the ventilation and dustproof filter 21, preventing the mesh from being blocked and maintaining the ventilation efficiency of the ventilation channel.

[0021] A fixing cylinder 31 is fixedly connected to the top of the inner side of the box body 1 near the opening and closing side of the box door. The fixing cylinder 31 is a horizontal cylindrical structure with one end open, and its open end is set directly facing the inner side of the box door of the box body 1. A movable plate 34 is slidably connected inside the fixed cylinder 31. The outer periphery of the movable plate 34 is slidably adapted to the inner wall of the fixed cylinder 31, and can move smoothly back and forth along the axial direction of the fixed cylinder 31. A pressing rod 32 is fixedly connected to the center of the side end face of the movable plate 34 facing the box door. The other end of the pressing rod 32 passes through the open end of the fixed cylinder 31 along the axial direction and extends to the outside of the fixed cylinder 31. The extension length of the pressing rod 32 is adapted to the opening and closing stroke of the box door, ensuring that when the box door is fully closed, the inner wall of the box door can press against the outer end of the pressing rod 32 and push the movable plate 34 to slide into the fixed cylinder 31. A spring 33 is sleeved on the outside of the pressing rod 32. One end of the spring 33 is fixedly connected to the end face of the movable plate 34 facing the box door, and the other end of the spring 33 is fixedly connected to the inner end face of the open end of the fixed cylinder 31. The spring 33 is kept in a slightly compressed state under normal conditions to continuously provide the movable plate 34 with a restoring elastic force facing the box door. A trigger switch 35 is fixedly installed on the inner wall of the fixed cylinder 31 at the end away from the door. The trigger switch 35 adopts a micro switch structure, and its wiring terminal is electrically connected to the power supply circuit of the electromagnetic drive slide 24 through the built-in wire. When the door closes and pushes the movable plate 34 to move inward to the limit position, the inner end face of the movable plate 34 presses the action contact of the trigger switch 35, so that the power supply circuit of the electromagnetic drive slide 24 is turned on and the cleaning mechanism starts to run. When the door opens, the pressure rod 32 loses the external force, the spring 33 releases the elastic force and pushes the movable plate 34 and the pressure rod 32 to reset outward in sync. The movable plate 34 disengages from the trigger switch 35, and the electromagnetic drive slide 24 is immediately de-energized and stops, thereby realizing the automatic linkage between the opening and closing of the door and the cleaning action of the filter screen.

[0022] A support frame 51 is fixedly connected to the inner top of the housing 1, below the ventilation and dustproof filter 21. The support frame 51 is horizontally mounted along the length of the ventilation and heat dissipation vents. Multiple drive gears 53 are rotatably connected to the outer side of the support frame 51 via bearings. The multiple drive gears 53 are evenly spaced along the length of the support frame 51. An adjusting plate 52 is fixedly connected to the end of the rotating shaft of each drive gear 53. The adjusting plate 52 is a rectangular flame-retardant insulating plate. All adjusting plates 52 are arranged sequentially in the same plane, together forming an adjustable opening. The ventilation louver structure closes the ventilation channel when the sides of adjacent adjustment plates 52 are in contact with each other, and forms a ventilation gap after deflection. The two outer ends of the support frame 51 are respectively fixedly connected to the mounting shells 54. The two mounting shells 54 are symmetrically arranged at both ends of the arrangement path of the drive gears 53. The inner side of the mounting shell 54 is provided with a guide groove, and the drive rack 55 is slidably connected in the guide groove. The tooth surface of the drive rack 55 is set facing the drive gear 53, and the tooth part of the drive rack 55 simultaneously meshes with the outer tooth parts of all drive gears 53 for transmission. Inside the mounting housing 54, a shape memory alloy drive rod 56 is fixedly installed. The shape memory alloy drive rod 56 is made of nickel-titanium shape memory alloy, which has the characteristic of axial deformation with temperature changes. Its deformation temperature threshold matches the normal operating temperature range of the ring main unit. The axis of the shape memory alloy drive rod 56 is consistent with the sliding direction of the drive rack 55. Its output end is fixedly connected to the end of the drive rack 55. When the internal temperature of the housing 1 rises to the set threshold, the shape memory alloy drive rod 56 undergoes a phase change due to heat and elongates axially, pushing the drive rack 55 to move along the guide groove, thereby driving all drive gears 53 to rotate synchronously, causing each adjustment plate 52 to deflect synchronously, increasing the effective cross-sectional area of ​​the ventilation channel and improving the heat dissipation airflow. When the internal temperature of the housing 1 drops back to the normal range, the shape memory alloy drive rod 56 contracts and resets as the temperature decreases, driving the drive rack 55 to move in the opposite direction. The adjustment plate 52 rotates synchronously to reduce the ventilation opening and reduce the intrusion of cold and humid air from the outside. Without the need for external temperature sensors, controllers, or other electronic control components, the ventilation volume can be passively and adaptively adjusted according to the internal temperature.

[0023] Two cooling fans 6 are symmetrically installed at the bottom of the inner chamber 1. The air outlet of the cooling fans 6 is vertically upward, which drives the air inside the chamber 1 to form an upward convection airflow, carrying the internal heat upward and expelling it through the top ventilation vent. Each cooling fan 6 has a corresponding dehumidification component on one side. The dehumidification component is connected to the output shaft of the cooling fan 6 through a transmission component, and uses the operating power of the cooling fan 6 to synchronously achieve the dehumidification function. The dehumidification component includes a connecting shell 41, a fixed shell 42, and a drive crank wheel 47. The unit consists of a swing rod 48 and a rubber piston 49. The connecting housing 41 is a sealed cylindrical cavity structure, fixedly installed at the bottom of the housing 1. The drive crank wheel 47 is rotatably connected to the bottom end inside the connecting housing 41. The bottom end shaft of the drive crank wheel 47 passes through the bottom wall of the connecting housing 41 and extends to the outside of the connecting housing 41. One end of the swing rod 48 is hinged to an eccentric position on the upper end face of the drive crank wheel 47, and the other end of the swing rod 48 is hinged to the end of the rubber piston 49. The outer periphery of the rubber piston 49 slides and seals against the inner wall of the connecting housing 41. When the drive crank 47 rotates, the swing rod 48 pulls the rubber piston 49 to reciprocate linearly within the cavity of the connecting housing 41. The transmission assembly includes two synchronous pulleys 45 and a synchronous transmission belt. One synchronous pulley 45 is fixedly sleeved on the bottom end of the output shaft of the cooling fan 6, and the other synchronous pulley 45 is fixedly connected to the bottom shaft of the drive crank 47. The two synchronous pulleys 45 are in the same horizontal plane and are driven by the synchronous transmission belt. When the cooling fan 6 starts running, the rotation of its output shaft... Power is transmitted to the drive crankshaft 47 via the synchronous pulley 45 and synchronous belt, driving the dehumidification components to operate synchronously. The end face of the connecting housing 41 furthest from the drive crankshaft 47 is connected to a connecting pipe 44 and a mounting pipe 46. Both the connecting pipe 44 and the mounting pipe 46 are equipped with one-way valves, which have opposite directions of operation. The one-way valve in the connecting pipe 44 only allows gas to flow unidirectionally from the inside of the housing 1 into the cavity of the connecting housing 41, while the one-way valve in the mounting pipe 46 only allows gas to flow unidirectionally outward from the cavity of the connecting housing 41. A fixed housing 42 is fixedly connected to the outer wall of the connecting housing 41. The outlet end of the mounting pipe 46 is connected to the internal cavity of the fixed housing 42. The interior of the fixed housing 42 is filled with granular silica gel desiccant. A connecting pipe 43 is also connected to the outer surface of the fixed housing 42, with the outlet end of the connecting pipe 43 inclined towards the electrical module area inside the housing 1.During the reciprocating motion of the rubber piston 49, a one-way pumping air path is formed in conjunction with two one-way valves arranged in opposite directions: when the rubber piston 49 moves away from the mounting pipe 46, a negative pressure is formed inside the connecting shell 41, the one-way valve of the connecting pipe 44 is opened, and the humid air at the bottom of the housing 1 is drawn into the cavity of the connecting shell 41; when the rubber piston 49 is pushed towards the mounting pipe 46, a positive pressure is formed inside the connecting shell 41, the one-way valve of the connecting pipe 44 is closed, the one-way valve of the mounting pipe 46 is opened, and the air in the cavity is forced into the fixed shell 42. When the air flows through the desiccant, the moisture contained therein is absorbed and dried. The dried air is blown directionally to the surface of the primary and secondary electrical components through the connecting pipe 43, driving away the accumulated moisture around the components. Finally, the airflow carrying the moisture flows upward with the heat dissipation convection and is discharged outside the housing 1 through the ventilation and dust filter 21 at the top, forming a complete dehumidification air path.

[0024] Working principle: When maintenance personnel close the outer door of the enclosure 1, the inner wall of the door will press against the contact rod 32 extending from the outer side of the fixed cylinder 31, causing the contact rod 32 to drive the movable plate 34 to slide inward along the inner wall of the fixed cylinder 31. At the same time, the spring 33 sleeved on the outer side of the contact rod 32 is compressed until the inner end face of the movable plate 34 touches the trigger switch 35 on the inner wall of the fixed cylinder 31. After the trigger switch 35 is triggered, the power supply circuit of the electromagnetic drive slide 24 is connected, and the two electromagnetic drive slides 24 reciprocate along the slide rail inside the mounting bracket 22. The linear motion synchronously drives the top cleaning plate 23 to move against the upper surface of the ventilation and dust filter 21. The brush bristles on the lower surface of the cleaning plate 23 sweep away the dust and debris accumulated on the filter surface, preventing the ventilation and dust filter 21 from becoming clogged and ensuring the ventilation and heat dissipation capacity of the housing 1. When the door is opened, the spring 33 releases its elastic potential energy to push the movable plate 34 and the touch rod 32 to return to their original positions synchronously. After the movable plate 34 disengages from the trigger switch 35, the electromagnetic drive slide 24 is de-energized and stops running, completing one automatic cleaning process when the door is closed. During normal operation, the electrical components inside the enclosure 1 continuously emit heat, and the internal temperature fluctuates with changes in load. When the internal temperature rises to a set threshold, the shape memory alloy drive rod 56, installed in the mounting shell 54 on the outside of the support frame 51, deforms due to heat and extends axially, pushing the drive rack 55 to slide along the inner groove of the mounting shell 54. Since the tooth surface of the drive rack 55 meshes with the multiple drive gears 53 arranged on the support frame 51, the linear movement of the drive rack 55 will synchronously drive all the drive gears 53 to deflect around their own axes, thereby causing the adjustment plates 52 fixed at the ends of the shafts of each drive gear 53 to rotate synchronously, increasing the ventilation cross-sectional area of ​​the heat dissipation channel, improving the air exchange efficiency between the inside of the enclosure 1 and the outside, and accelerating heat dissipation. When the internal temperature drops back to the normal range, the shape memory alloy drive rod 56 retracts and resets as the temperature decreases, driving the drive rack 55 to slide in the opposite direction, causing the adjustment plate 52 to rotate synchronously and reduce the ventilation opening, thereby maintaining the dynamic stability of the internal temperature of the enclosure 1. Adaptive heat dissipation adjustment can be achieved without additional electronic control components. When the internal temperature of the housing 1 is high or the ambient humidity is high, the cooling fan 6 at the bottom of the housing starts to run. On the one hand, it directly drives the internal air to form an upward convection airflow, carrying heat and expelling it from the housing 1 through the ventilation and dust filter 21 at the top. On the other hand, the output shaft of the cooling fan 6 drives the synchronous pulley 45 fixed on it to rotate, and transmits the power to the synchronous pulley 45 at the bottom of the connecting shell 41 through the synchronous belt, thereby driving the drive crank wheel 47 inside the connecting shell 41 to rotate synchronously. During the rotation of the drive crank wheel 47, the swing rod 48 hinged at its eccentric position will pull the rubber piston 49 to make reciprocating linear motion in the cavity of the connecting shell 41, which is coordinated with the unidirectional valves set in opposite directions inside the connecting pipe 44 and the mounting pipe 46. The valve forms a one-way pumping air path. When the rubber piston 49 moves away from the mounting pipe 46, the one-way valve in the connecting pipe 44 is opened, and the humid air in the lower part of the housing 1 is drawn into the cavity of the connecting shell 41. When the rubber piston 49 is pushed towards the mounting pipe 46, the one-way valve of the connecting pipe 44 is closed and the one-way valve of the mounting pipe 46 is opened, and the air in the cavity is forced into the fixed shell 42. After the desiccant filled in the fixed shell 42 absorbs and removes moisture, the dry air is blown out from the connecting pipe 43 toward the electrical module area inside the housing 1, continuously driving away the moisture around the electrical components. Finally, the airflow carrying moisture flows upward with the heat dissipation air path and is discharged outside the housing 1 through the ventilation and dust filter 21 at the top.

[0025] 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 modular integrated primary and secondary ring network box, comprising a box body (1), characterized in that, A ventilation and dustproof filter (21) is detachably connected to one side of the top of the box (1). Two mounting brackets (22) are fixedly connected to the front and rear sides of the top of the box (1). Two electromagnetic drive slides (24) are slidably mounted on the inner side of the mounting brackets (22). A cleaning plate (23) is fixedly fixed to the top of the two electromagnetic drive slides (24). The lower surface of the cleaning plate (23) is in contact with the upper surface of the ventilation and dustproof filter (21). A fixed cylinder (31) is fixedly connected to the inner top of the box (1). A movable plate (34) is slidably connected inside the fixed cylinder (31). The movable plate (34) faces towards A pressure rod (32) is fixedly connected to one side of the box door. A trigger switch (35) is fixedly connected to the inner side of the fixed cylinder (31) away from the box door. The trigger switch (35) is electrically connected to the electromagnetic drive slide (24). When the box door on the outside of the box body (1) is closed, the box door presses against the pressure rod (32) and drives the movable plate (34) to slide along the inner wall of the fixed cylinder (31) until the movable plate (34) touches the trigger switch (35), so that the electromagnetic drive slide (24) is energized and drives the cleaning plate (23) to move back and forth along the surface of the ventilation dust filter (21) to clean and prevent clogging of the ventilation dust filter (21).

2. The modular primary and secondary integrated ring network box according to claim 1, characterized in that, A support frame (51) is fixedly connected to the inner top of the housing (1). Multiple drive gears (53) are rotatably connected to the outer side of the support frame (51) via bearings. An adjustment plate (52) is fixedly connected to the end of the shaft of the drive gear (53). Two mounting shells (54) are fixedly connected to the outer side of the support frame (51). A drive rack (55) is slidably connected to the inner side of the mounting shell (54). A memory alloy drive rod (56) is installed inside the mounting shell (54). One end of the memory alloy drive rod (56) is connected to the drive rack (55) for transmission. When the temperature inside the housing (1) rises, the memory alloy drive rod (56) is heated and elongates, pushing the drive rack (55) to slide along the mounting shell (54), thereby driving multiple drive gears (53) to rotate synchronously, so that each adjustment plate (52) deflects synchronously with the corresponding drive gear (53), thereby adjusting the ventilation flow of the heat dissipation channel.

3. The modular integrated primary and secondary ring network box according to claim 2, characterized in that, The tooth surface of the drive rack (55) meshes with the outer side of the plurality of drive gears (53), and the output end of the memory alloy drive rod (56) is fixedly connected to the end of the drive rack (55).

4. The modular integrated primary and secondary ring network box according to claim 1, characterized in that, The touch rod (32) is fitted with a spring (33). One end of the spring (33) is fixedly connected to the side of the movable plate (34) facing the door, and the other end of the spring (33) is fixedly connected to the inner end face of the fixed cylinder (31) near the door.

5. A modular integrated primary and secondary ring network box according to claim 1, characterized in that, Two cooling fans (6) are installed at the bottom of the inner part of the housing (1). The cooling fans (6) are connected to a dehumidification assembly through a transmission assembly. The dehumidification assembly includes a connecting shell (41), a fixed shell (42), a drive crank wheel (47), a swing rod (48), and a rubber piston (49). The drive crank wheel (47) is rotatably connected to the inside of the connecting shell (41). One end of the swing rod (48) is hinged to the eccentric position of the drive crank wheel (47), and the other end of the swing rod (48) is hinged to the end of the rubber piston (49). The rubber piston (49) is slidably sealed to the inner wall of the connecting shell (41). The outer surface of the connecting shell (41) is connected to a connecting pipe (44) and an installation pipe (46) in sequence. The fixed shell (42) is fixedly connected to the outside of the connecting shell (41). The outer surface of the fixed shell (42) is connected to a connecting pipe (43). The air outlet of the installation pipe (46) is connected to the inside of the fixed shell (42).

6. A modular integrated primary and secondary ring network box according to claim 5, characterized in that, The transmission assembly includes two synchronous pulleys (45) and a synchronous belt. One of the synchronous pulleys (45) is fixedly sleeved on the output shaft of the cooling fan (6), and the other synchronous pulley (45) is rotatably connected to the bottom of the connecting housing (41). The synchronous pulley (45) is coaxially fixedly connected to the bottom end of the drive crank wheel (47). The two synchronous pulleys (45) are connected by the synchronous belt.

7. A modular primary and secondary integrated ring network box according to claim 5, characterized in that, Both the connecting pipe (44) and the mounting pipe (46) are equipped with one-way valves, and the two one-way valves have opposite conduction directions. The interior of the fixed shell (42) is filled with desiccant.

8. A modular integrated primary and secondary ring network box according to claim 1, characterized in that, The two mounting brackets (22) are symmetrically arranged along the length of the ventilation and dustproof filter (21). Each mounting bracket (22) has a linear slide rail on its inner side. The electromagnetic drive slide (24) is slidably mounted on the corresponding linear slide rail. The lower surface of the cleaning plate (23) is provided with cleaning bristles that are compatible with the mesh of the ventilation and dustproof filter (21).

9. A modular integrated primary and secondary ring network box according to claim 5, characterized in that, The outlet of the connecting pipe (43) is inclined toward the electrical module area inside the box (1), and the inlet of the connecting pipe (44) is toward the lower space inside the box (1). Under the combined action of the cooling fan (6) and the dehumidification component, a bottom-up circulating dehumidification air path is formed.

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