An easy-to-seal intelligent grounding box

Abstract

This utility model relates to the field of intelligent grounding box technology, and discloses an easily sealed intelligent grounding box, including a box body. A rotatable door is rotatably connected to the front end of the box body. Several rainproof covers are fixedly connected to both ends of the box body. Exhaust grooves are formed on the inner walls of the rainproof covers at both ends of the box body. A loading frame is fixedly connected to the bottom end of the inner wall of the box body. A compression plate is connected to the top of the loading frame via a sealing assembly. A fan is installed at the rear end of the inner wall of the loading frame. A connecting cover is fixedly connected to the top of the box body. Cooling fans are connected to the left and right ends of the connecting cover via heat dissipation assemblies. This utility model achieves efficient sealing, significantly improves waterproofing, ensures the reliability and long-term stability of cable installation, and enables cold air circulation. Hot air is discharged from the exhaust grooves of the rainproof covers, significantly reducing the box body temperature and drying the damp inner cavity, ensuring stable equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of intelligent grounding box technology, and in particular to an intelligent grounding box that is easy to seal. Background Technology

[0002] A smart grounding box is a safety protection device used in power systems, primarily for monitoring and protecting against grounding fault risks in the power grid. By monitoring data such as current and voltage in real time, it can automatically identify abnormal conditions and issue alarms or take isolation measures, thereby preventing power outages or equipment damage caused by grounding faults.

[0003] During the installation of cables inside the intelligent grounding box, gaps can easily occur due to mismatches between the diameter of some cables and the size of the mounting holes, affecting the sealing performance of the device. Such omissions or gaps can lead to problems such as water ingress, electrical leakage, or short circuits, seriously threatening the safe operation of the equipment and the safety of personnel and property. Furthermore, sealing issues can cause additional maintenance costs and operational risks, and may even lead to equipment shutdown, severely impacting the stability and security of the power system.

[0004] In response to this technical problem, this application proposes an intelligent grounding box that is easy to seal. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an intelligent grounding box that is easy to seal, which can achieve efficient sealing of cables, significantly improve waterproofing, and ensure the reliability and long-term stability of cable installation, so as to solve the technical problems described in the background art.

[0006] This utility model is achieved through the following technical solution:

[0007] An easily sealed intelligent grounding box includes a box body, a rotatable door connected to the front end of the box body, several rainproof covers fixedly connected to both the left and right ends of the box body, and exhaust grooves opened on the inner walls of the rainproof covers at both ends of the box body. A loading frame is fixedly connected to the bottom end of the inner wall of the box body, and a compression plate is connected to the top end of the loading frame through a sealing assembly. A fan is installed at the rear end of the inner wall of the loading frame, and a connecting cover is fixedly connected to the top end of the box body. Cooling fans are connected to the left and right ends of the connecting cover through a heat dissipation assembly.

[0008] Furthermore, the sealing assembly includes a threaded pipe fixedly connected to all four sides of the top of the loading frame, a rotating ring threadedly connected to the outer wall of the threaded pipe, and an adapter ring rotatably connected to the top of the rotating ring.

[0009] Furthermore, each of the adapter rings is rotatably connected to a support plate at its top end, and each support plate is rotatably connected to the opposite end of the extrusion plate at one end. The top end of each extrusion plate is rotatably connected to the inner wall of the threaded pipe.

[0010] Furthermore, an electrically controlled five-way valve is installed at the output end of the fan, and the top of the electrically controlled five-way valve is installed at the bottom of the inner wall of the loading frame.

[0011] Furthermore, each of the output ends of the loading frame is fixedly connected to a connecting pipe, and an inflatable airbag is fixedly connected to one end of each connecting pipe opposite to the other. The outer wall of the inflatable airbag is fixedly connected to the bottom end of the threaded pipe.

[0012] Furthermore, the heat dissipation assembly includes a fixed frame that is fixedly connected to both the left and right ends of the connecting cover. A dust filter is fixedly connected to one end of each fixed frame opposite to the other end. A guide shell is fixedly connected to one end of each dust filter opposite to the other end. The outer wall of the heat dissipation fan is fixedly connected to the inner wall of the guide shell.

[0013] Furthermore, each of the guide shells is fixedly connected to a ventilation pipe at one end, and guide plates are fixedly connected to the left and right sides of the bottom of the inner wall of the box.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, after the cable is inserted into the threaded tube, the rotating threaded tube drives the adapter ring to push the support plate inward, so that the pressing plate firmly fixes the cable. The fan is started, and air is distributed to the connecting pipe through the electronically controlled five-way valve to inflate the expansion bladder. After the bladder expands, it tightly fills the gap between the cable and the threaded tube, achieving efficient sealing, significantly improving the waterproof effect, and ensuring the reliability and long-term stability of the cable installation.

[0016] 2. In this utility model, by starting the cooling fan, the air is filtered through the dust filter of the fixed frame. The internal high and low position difference baffle effectively prevents rainwater from entering the guide shell. Clean air is introduced into the box through the ventilation pipe. The ventilation angle of the pipe cavity is changed. With the deflection of the guide plate, cold air circulation is achieved. Hot air is discharged from the exhaust groove of the rainproof cover, which significantly reduces the temperature of the box and dries the damp inner cavity, ensuring stable operation of the equipment. Attached Figure Description

[0017] Figure 1 This is a perspective view of an intelligent grounding box that is easy to seal, as proposed in this utility model.

[0018] Figure 2 This is a half-sectional view of the enclosure of an intelligent grounding box that is easy to seal, as proposed in this utility model.

[0019] Figure 3 This is a half-sectional view of the loading frame of an intelligent grounding box that is easy to seal, as proposed in this utility model.

[0020] Figure 4 This is a half-sectional view of the threaded pipe of an intelligent grounding box that is easy to seal, as proposed in this utility model.

[0021] Figure 5 This is a half-sectional view of the connection cover of an intelligent grounding box that is easy to seal, as proposed in this utility model.

[0022] In the diagram: 1-Box body, 2-Rainproof cover, 3-Connecting cover, 4-Fixing frame, 5-Dust filter, 6-Loading rack, 7-Threaded pipe, 8-Ventilation pipe, 9-Guide plate, 10-Extrusion plate, 11-Fan, 12-Electrically controlled five-way valve, 13-Connecting pipe, 14-Inflatable airbag, 15-Rotating ring, 16-Adapter ring, 17-Support plate, 18-Cooling fan, 19-Guide shell, 20-Closed door. Detailed Implementation

[0023] Typical embodiments embodying the features and advantages of this utility model will be specifically described in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0024] In the description of this application, the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of an intelligent grounding box that is easy to seal, comprising a box body 1, a closing door 20 rotatably connected to the front end of the box body 1, several rainproof covers 2 fixedly connected to both the left and right ends of the box body 1, and exhaust grooves opened on the inner walls of the rainproof covers 2 at both the left and right ends of the box body 1, respectively. A loading frame 6 is fixedly connected to the bottom end of the inner wall of the box body 1, and a compression plate 10 is connected to the top end of the loading frame 6 through a sealing assembly. A fan 11 is installed at the rear end of the inner wall of the loading frame 6. The sealing assembly includes threaded pipes 7 fixedly connected to the four sides of the top end of the loading frame 6, and a rotating... Ring 15, with a rotatable adapter ring 16 rotatably connected to the top of the rotating ring 15. Each adapter ring 16 is rotatably connected to a support plate 17. Each support plate 17 is rotatably connected to the opposite end of the extrusion plate 10. Each extrusion plate 10 is rotatably connected to the inner wall of the threaded pipe 7. An electrically controlled five-way valve 12 is installed at the output end of the blower 11. The top of the electrically controlled five-way valve 12 is installed at the bottom of the inner wall of the loading frame 6. Each output end of the loading frame 6 is fixedly connected to a connecting pipe 13. Each opposite end of the connecting pipe 13 is fixedly connected to an inflatable airbag 14. The outer wall of the inflatable airbag 14 is fixedly connected to the bottom of the threaded pipe 7.

[0026] Specifically: In the intelligent grounding box structure that is easy to seal, the cable installation sealing system adopts a multi-level collaborative design to achieve dynamic waterproofing. When the operator inserts the cable into the threaded tube 7, by rotating the operating handle on the outer wall of the threaded tube 7 clockwise, the spiral groove of the threaded tube 7 and the locking structure of the adapter ring 16 form a mechanical transmission, driving the 6 sets of support plates 17 evenly distributed around the circumference to move synchronously towards the center in the radial direction. The arc-shaped extrusion plate 10 at the end of the support plate 17 is made of high-elasticity silicone material, and its inner surface is provided with anti-slip texture, so that the extrusion plate 10 applies a uniform clamping force of 0.5-1.2MPa to the cable, which not only ensures that the cable is firmly fixed, but also avoids excessive extrusion and damage to the insulation layer.

[0027] After the initial cable fixing is completed, when the humidity sensor detects that the ambient humidity exceeds the IP67 protection threshold, it automatically triggers the start-up procedure of the fan 11. The dual-turbine fan draws in clean air that has undergone triple filtration at a speed of 8000 rpm. The airflow is intelligently distributed by the electronically controlled five-way valve 12, which is controlled by a PID algorithm. The three connecting pipes 13 lead to the annular expansion airbag 14 at the end of the threaded pipe 7. The annular expansion airbag 14 is made of memory rubber and can expand to three times its original volume under a pressure of 0.15 MPa. Its surface is designed with a fish-scale-like protrusion structure that can adaptively fill the 0.2-1.5 mm assembly gap between cables of different diameters and the inner wall of the threaded pipe 7. When the pressure sensor detects that the contact pressure of the airbag reaches 3 N / cm, the airbag will expand to the maximum capacity. 2 When the pressure is maintained, the electrically controlled five-way valve 12 automatically switches to the pressure-holding mode. At this time, the pressure relief valve maintains a dynamic balance of 0.08-0.12MPa to ensure airtight stability under extreme temperature difference conditions. It is especially suitable for harsh conditions such as coastal substations and underground pipe corridors.

[0028] Reference Figure 2 and Figure 5 The top of the housing 1 is fixedly connected to a connecting cover 3. The left and right ends of the connecting cover 3 are connected to cooling fans 18 through a heat dissipation assembly. The heat dissipation assembly includes a fixed frame 4 fixedly connected to both ends of the connecting cover 3. A dust filter 5 is fixedly connected to one end of the fixed frame 4 facing away from each other. A guide shell 19 is fixedly connected to one end of the dust filter 5 facing away from each other. The outer wall of the cooling fan 18 is fixedly connected to the inner wall of the guide shell 19. A ventilation pipe 8 is fixedly connected to one end of the guide shell 19 facing away from each other. Guide plates 9 are fixedly connected to the left and right sides of the bottom of the inner wall of the housing 1.

[0029] Specifically: In the heat dissipation system of the easily sealed intelligent grounding box, the cooling fan 18 adopts a dual-level protection design to ensure both heat dissipation efficiency and dust and water resistance. The cooling fan 18 is installed at the air intake end of the fixed frame 4. The fixed frame 4 is made of 304 stainless steel, and the dust filter 5 installed at its front end has a double-layer structure. The outer layer is a coarse nylon filter that can intercept large dust particles; the inner layer is a HEPA high-efficiency filter that can effectively filter PM2.5 particles.

[0030] The fixed frame 4 is innovatively equipped with two baffles with different heights. The upper baffle is 45mm high and the lower baffle is 35mm high, forming an "S" shaped airflow channel. When the outside wind speed reaches 10m / s, this structure can effectively block 99% of rainwater penetration, ensuring that the inside of the guide shell 19 remains dry in rainy weather.

[0031] The cooling fan 18 adopts PWM speed control technology. Based on the real-time data from the temperature sensor inside the enclosure 1, which is installed near the main control board, the fan speed is intelligently adjusted within the range of 800-3000 rpm. The clean air drawn in is delivered to the inside of the enclosure 1 through a 60mm diameter ventilation duct 8. The ventilation duct 8 adopts a variable cross-section design with three 45° bends in the middle of the duct and is equipped with an adjustable guide plate 9. The guide plate 9 is driven by a stepper motor and can automatically deflect within ±30° according to the temperature distribution inside the enclosure 1, so that the cool air forms a "U" shaped circulation path inside the enclosure 1, ensuring that areas with poor heat dissipation, such as terminal blocks and power modules, are also adequately cooled.

[0032] After heat exchange, the hot air is discharged through four sets of exhaust channels at the rain cover 2. The exhaust channels adopt a "louvered" design with an inclination angle of 15°. Combined with the arc structure of the rain cover 2, it can effectively prevent rainwater from flowing back in. The entire heat dissipation system and sealing system work together. When the humidity sensor detects that the relative humidity inside the cabinet 1 exceeds 60%, the control system will automatically start the dehumidification mode: the cooling fan 18 runs continuously at a speed of 1500rpm for 30 minutes. Combined with the heating element inside the cabinet 1, the internal humidity can be reduced to below 35%, effectively preventing condensation.

[0033] Meanwhile, the system is also equipped with a temperature protection mechanism. When the internal temperature of the enclosure 1 exceeds 55°C, the cooling fan 18 will automatically switch to full speed operation and trigger an alarm signal when the temperature exceeds 65°C. This intelligent heat dissipation design enables the grounding box to operate stably in an ambient temperature range of -25°C to +75°C, making it particularly suitable for installation in high-temperature and high-humidity coastal areas or enclosed spaces.

[0034] Working principle: After the cable is placed in the threaded tube 7, rotating the threaded tube 7 causes the support plate 17 to be squeezed inward through the adapter ring 16. This causes the support plate 17 to squeeze the cable relative to the compression plate 10, thus initially fixing the cable. When the fan 11 is started, it draws in outside air and distributes the air to the connecting pipe 13 through the electrically controlled five-way valve 12. This causes the connecting pipe 13 to inflate the expansion airbag 14, causing the expansion airbag 14 to expand and block the gap between the cables. This seals the connection between the threaded tube 7 and the cable, thereby improving the waterproof effect during cable installation.

[0035] When the cooling fan 18 is activated and filters the dust from the filter screen 5 at the fixed frame 4, and two baffles with different heights are installed inside the fixed frame 4 to prevent rainwater from entering the guide shell 19, and when the cooling fan 18 draws in air, it is pumped into the box 1 through the ventilation pipe 8. The ventilation angle inside the ventilation pipe 8 is changed, and the cold air is circulated inside the box 1 by the deflection of the guide plate 9, and discharged from the exhaust slot at the rain cover 2, which lowers the temperature inside the box 1 and dries the damp interior.

[0036] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An easily sealed intelligent grounding box, comprising a box body (1), characterized in that: The front end of the box (1) is rotatably connected to a closed door (20), and several rainproof covers (2) are fixedly connected to both the left and right ends of the box (1). The left and right ends of the box (1) are provided with exhaust grooves on the inner walls of the rain cover (2). The bottom of the inner wall of the box (1) is fixedly connected to a loading frame (6). The top of the loading frame (6) is connected to a compression plate (10) through a sealing assembly. A fan (11) is installed at the rear end of the inner wall of the loading frame (6). The sealing assembly includes a threaded tube (7) fixedly connected to all four sides of the top of the loading frame (6). A rotating ring (15) is threadedly connected to the outer wall of the threaded tube (7), and a transition ring (16) is rotatably connected to the top of the rotating ring (15). The top of each adapter ring (16) is rotatably connected to a support plate (17), and the opposite end of each support plate (17) is rotatably connected to the opposite end of the extrusion plate (10). The top of each extrusion plate (10) is rotatably connected to the inner wall of the threaded tube (7). The output end of the loading frame (6) is fixedly connected to a connecting pipe (13), and the opposite end of the connecting pipe (13) is fixedly connected to an inflatable airbag (14). The outer wall of the inflatable airbag (14) is fixedly connected to the bottom end of the threaded pipe (7). The top of the housing (1) is fixedly connected to a connecting cover (3), and the left and right ends of the connecting cover (3) are connected to cooling fans (18) through a heat dissipation assembly.

2. The intelligent grounding box that is easy to seal according to claim 1, characterized in that: The output end of the fan (11) is equipped with an electrically controlled five-way valve (12), and the top of the electrically controlled five-way valve (12) is installed at the bottom of the inner wall of the loading frame (6).

3. The easily sealed intelligent grounding box according to claim 1, characterized in that: The heat dissipation assembly includes a fixed frame (4) fixedly connected to both the left and right ends of the connecting cover (3). A dust filter (5) is fixedly connected to one end of the fixed frame (4) opposite to the other end. A guide shell (19) is fixedly connected to one end of the dust filter (5). The outer wall of the heat dissipation fan (18) is fixedly connected to the inner wall of the guide shell (19).

4. The easily sealed intelligent grounding box according to claim 3, characterized in that: The guide shell (19) is fixedly connected to a ventilation pipe (8) at one end, and the bottom of the inner wall of the box (1) is fixedly connected to guide plates (9) on both the left and right sides.

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