An improved waterproof and moisture-proof sealing structure for cable branch boxes

By introducing drying and moisture-proof components into the cable branch box, the problem of limited adsorption capacity of the desiccant is solved, achieving a more efficient dehumidification effect and a longer service life, thus ensuring the stable operation of the cable branch box.

CN224459212UActive Publication Date: 2026-07-03JIANGSU XINJINGYUAN POWER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XINJINGYUAN POWER TECH CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-03

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    Figure CN224459212U_ABST
Patent Text Reader

Abstract

This utility model discloses an improved waterproof and moisture-proof sealing structure for a cable branch box, belonging to the technical field of cable branch boxes. It includes a box body, with a drying component fixedly installed on the upper surface of the box body, a base fixedly connected to the bottom of the box body, and a moisture-proof component fixedly connected to the inner wall of the base. The drying component accelerates air circulation inside the box, improving drying efficiency. Simultaneously, it blows the dried air to the box surface, effectively reducing the relative humidity of the surrounding environment, thereby further inhibiting moisture condensation and reducing the humidity of the air entering the box body. This reduces the adsorption pressure of the desiccant, ensuring its dehumidification effect and service life, further improving the overall moisture-proof performance and operational reliability of the cable branch box. The moisture-proof component adsorbs and dehumidifies the air entering the box body, effectively reducing the moisture content in the air and maintaining a dry environment inside the box.
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Description

Technical Field

[0001] This utility model relates to the field of cable branch box technology, specifically an improved waterproof and moisture-proof sealing structure for a cable branch box. Background Technology

[0002] A cable distribution box is an electrical device used in a power distribution system to distribute power from the main cable to various branch lines or equipment. Its main function is to connect, distribute, and protect cable lines, facilitating power distribution and management. It also has short-circuit and overload protection functions to ensure the safety and reliability of the power supply system. To prevent moisture from entering the equipment and causing short circuits, insulation damage, or corrosion, thus ensuring the safe and stable operation of the power system, especially in outdoor or humid environments, cable distribution boxes often need to be waterproofed and moisture-proofed to effectively extend the equipment's lifespan and prevent power outages and safety accidents.

[0003] However, in the existing technology, cable distribution boxes usually use built-in desiccant to absorb moisture inside the box to prevent electrical faults caused by moisture. However, since the desiccant has a limited adsorption capacity, it tends to become saturated after long-term use, resulting in a significant decrease in its dehumidification effect and a short service life, which makes it difficult to meet the requirements of long-term stable operation of cable distribution boxes.

[0004] Therefore, this utility model provides an improved waterproof and moisture-proof sealing structure for cable branch boxes to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides an improved waterproof and moisture-proof sealing structure for cable branch boxes, aiming to solve the problem mentioned in the background art that due to the limited adsorption capacity of the desiccant, it tends to become saturated after long-term use, resulting in a significant decrease in its dehumidification effect, a short service life, and difficulty in meeting the long-term stable operation requirements of cable branch boxes.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: it includes a box body, a drying component is fixedly installed on the upper surface of the box body, a base is fixedly connected to the bottom end of the box body, and a moisture-proof component is fixedly connected to the inner wall of the base body;

[0009] The drying assembly includes an induced draft fan, the lower surface of which is fixedly installed on the upper surface of the housing. An air collection box is fixedly connected to the air outlet of the induced draft fan. Exhaust pipes are fixedly connected to both sides of the air collection box, and dispersion pipes are fixedly connected to both sides of the outer surface of the exhaust pipes.

[0010] As a preferred technical solution of this application, the moisture-proof component includes a protective net, the outer surface of which is fixedly connected to the inner wall of the base, a desiccant is disposed on the upper surface of the protective net, and an activated carbon plate is attached to the upper surface of the desiccant.

[0011] As a preferred technical solution of this application, the front surface of the box is hinged with a box door, and a sealing ring is fixedly connected to the back of the box door.

[0012] As a preferred technical solution of this application, a limiting ring is fixedly connected to the inner wall of the box, and a rubber ring is fixedly connected to the front surface of the limiting ring.

[0013] As a preferred technical solution of this application, air inlets are provided on both sides of the base, and the air inlets are U-shaped.

[0014] As a preferred technical solution of this application, an air outlet is provided on the upper surface of the box at a position corresponding to the air inlet of the induced draft fan, and a heating element is fixedly connected to the inner wall of the air outlet.

[0015] (III) Beneficial Effects

[0016] 1. The drying components can accelerate the air circulation inside the box, improve drying efficiency, and blow the dried air to the surface of the box, effectively reducing the relative humidity of the surrounding environment, thereby further inhibiting moisture condensation, reducing the humidity of the air entering the box, reducing the adsorption pressure of the desiccant, ensuring its dehumidification effect and service life, and further improving the overall moisture-proof performance and operational reliability of the cable branch box.

[0017] 2. The moisture-proof components can adsorb and dehumidify the air entering the box, effectively reducing the moisture content in the air and maintaining a dry environment inside the box. This prevents electrical faults such as short circuits and reduced insulation performance caused by moisture, further improving the operational safety and stability of the cable branch box. Attached Figure Description

[0018] Figure 1 A schematic diagram of an improved waterproof and moisture-proof sealing structure for a cable branch box;

[0019] Figure 2 A schematic diagram of the internal structure of a waterproof and moisture-proof sealing improvement structure for a cable branch box;

[0020] Figure 3 A schematic diagram of the distribution tube in an improved waterproof and moisture-proof sealing structure for a cable branch box;

[0021] Figure 4 This is a cross-sectional view of the base in an improved waterproof and moisture-proof sealing structure for a cable branch box.

[0022] In the picture:

[0023] 1. Box body; 2. Base; 3. Exhaust fan; 4. Air collection box; 5. Exhaust pipe; 6. Dispersion pipe; 7. Protective net; 8. Desiccant; 9. Activated carbon plate; 10. Box door; 11. Sealing ring; 12. Limiting ring; 13. Rubber ring; 14. Heating element. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides an improved waterproof and moisture-proof sealing structure for cable branch boxes, such as... Figures 1-4 As shown, an improved waterproof and moisture-proof sealing structure for a cable branch box includes a box body 1, a drying component fixedly installed on the upper surface of the box body 1, a base 2 fixedly connected to the bottom end of the box body 1, and a moisture-proof component fixedly connected to the inner wall of the base 2.

[0026] The drying assembly includes an exhaust fan 3, the lower surface of which is fixedly mounted on the upper surface of the housing 1. An air collection box 4 is fixedly connected to the air outlet of the exhaust fan 3. Exhaust pipes 5 are fixedly connected to both sides of the air collection box 4. Dispersion pipes 6 are fixedly connected to both sides of the outer surface of the exhaust pipes 5. When the exhaust fan 3 is started, the air inside the housing 1 is drawn out, which can accelerate the air circulation inside the housing 1 and improve the drying efficiency. The air is then introduced into the air collection box 4 and blown to the surface of the housing 1 through the exhaust pipes 5 and the dispersion pipes 6. This effectively reduces the relative humidity of the environment around the housing 1, thereby further inhibiting moisture condensation, reducing the humidity of the air entering the housing 1, reducing the adsorption pressure of the desiccant, ensuring its dehumidification effect and service life, and further improving the overall moisture-proof performance and operational reliability of the cable branch box.

[0027] The moisture-proof component includes a protective net 7, the outer surface of which is fixedly connected to the inner wall of the base 2. A desiccant 8 is placed on the upper surface of the protective net 7, and an activated carbon plate 9 overlaps on the upper surface of the desiccant 8. The protective net 7 can protect the desiccant 8 and prevent it from falling off. The desiccant 8 and the activated carbon plate 9 can absorb moisture to reduce the moisture content in the air, thereby maintaining a dry environment inside the box 1. This prevents electrical faults such as short circuits and decreased insulation performance caused by moisture, further improving the operational safety and stability of the cable branch box. In addition, the activated carbon plate 9 can absorb odors and harmful gases inside the box 1, preventing odors from accumulating inside the box 1 and affecting the operating environment of the equipment.

[0028] The front surface of the enclosure 1 is hinged to the door 10, and the back of the door 10 is fixedly connected to the sealing ring 11. The sealing ring 11 is adapted to the limiting ring 12 to ensure the sealing of the contact point between the two and improve the sealing effect of the door 10 when closed.

[0029] A limiting ring 12 is fixedly connected to the inner wall of the enclosure 1. A rubber ring 13 is fixedly connected to the front surface of the limiting ring 12. The limiting ring 12 limits the sealing ring 11, and the rubber ring 13 further improves the sealing performance of the contact point between the two, improves the sealing effect of the enclosure door 10 when closed, and prevents water vapor and moisture from entering.

[0030] Air inlets are provided on both sides of the base 2. The air inlets are U-shaped, which facilitates the entry of external air and ensures the air circulation inside the box 1. The U-shaped air inlets also ensure that the water entering the box flows out, thus ensuring the drying effect inside the box 1.

[0031] An air outlet is provided on the upper surface of the housing 1 at a position corresponding to the air inlet of the blower 3. A heating element 14 is fixedly connected to the inner wall of the air outlet. The heating element 14 can heat the air flowing out from the inside of the housing 1, raise its temperature, and then blow it to the outside of the housing 1. This helps to accelerate the evaporation of moisture on the outer surface of the housing 1, enhance the drying effect of the surrounding environment, and further reduce the risk of moisture intrusion, thereby improving the overall moisture resistance and operational stability of the cable branch box.

[0032] Working steps: First, close the box door 10 so that the sealing ring 11 and the limiting ring 12 come into contact. The rubber ring 13 can improve the sealing of the contact point between the two. Next, start the heating element 14 and the exhaust fan 3. The exhaust fan 3 can draw out the air inside the box 1 and heat it by the heating element 14. Then, introduce it into the air collection box 4 and blow it to the surface of the box 1 through the exhaust pipe 5 and the dispersion pipe 6. Next, the air around the box 1 enters the box 1 through the air inlet. The air inlet is U-shaped to ensure that the water entering flows out. Finally, the protective net 7 can protect the desiccant 8 to prevent it from falling off. The desiccant 8 and the activated carbon plate 9 can adsorb moisture to reduce the moisture content in the air.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An improved water and moisture proof sealing structure of a cable branch box comprising a box body (1), characterized in that: A drying component is fixedly installed on the upper surface of the box (1), and a base (2) is fixedly connected to the bottom end of the box (1). A moisture-proof component is fixedly connected to the inner wall of the base (2). The drying assembly includes an exhaust fan (3), the lower surface of which is fixedly installed on the upper surface of the housing (1), the exhaust end of which is fixedly connected to an air collection box (4), and exhaust pipes (5) are fixedly connected to both sides of the air collection box (4), and dispersion pipes (6) are fixedly connected to both sides of the outer surface of the exhaust pipes (5).

2. The improved waterproof and moisture-proof sealing structure of a cable branch box according to claim 1, characterized in that: The moisture-proof component includes a protective net (7), the outer surface of which is fixedly connected to the inner wall of the base (2), and a desiccant (8) is provided on the upper surface of the protective net (7), with an activated carbon plate (9) overlapping the upper surface of the desiccant (8).

3. The improved waterproof and moisture-proof sealing structure of a cable branch box according to claim 1, characterized in that: The front surface of the box (1) is hinged with a door (10), and a sealing ring (11) is fixedly connected to the back of the door (10).

4. The improved water-proof and damp-proof sealing structure of a cable branch box according to claim 1, characterized in that: A limiting ring (12) is fixedly connected to the inner wall of the box (1), and a rubber ring (13) is fixedly connected to the front surface of the limiting ring (12).

5. The improved water-proof and damp-proof sealing structure of a cable branch box according to claim 1, characterized in that: The base (2) has air inlets on both sides, and the air inlets are U-shaped.

6. The improved water-proof and damp-proof sealing structure of a cable branch box according to claim 1, characterized in that: An air outlet is provided on the upper surface of the housing (1) at a position corresponding to the air inlet of the blower (3), and a heating element (14) is fixedly connected to the inner wall of the air outlet.