High-voltage cable branch box

Abstract

The utility model relates to the technical field of high-voltage cable branch boxes, in particular to a high-voltage cable branch box which comprises a box body, box doors are hinged to the left side and the right side of the box body respectively, multiple sets of air inlets are formed in the front face of the box body, and first dustproof nets are installed at the positions, corresponding to the multiple sets of air inlets, in the box body. Two groups of first moisture-proof plates are mounted in the box body and located above the first dust-proof net, exhaust hoods are fixedly connected to the tops of the two groups of box doors, exhaust fans are fixedly mounted at the joints of the two groups of exhaust hoods and the box doors, and second moisture-proof plates are mounted in the two groups of exhaust hoods. According to the utility model, through cooperation of double moisture-proof guarantee and forced air exhaust design, dynamic air circulation is realized, moisture accumulation of a traditional branch box is avoided, the risk of short circuit is significantly reduced, and the reliability and maintenance convenience of equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage cable branch boxes, in particular to a high-voltage cable branch box. Background Art

[0002] With the development of the cabling process of distribution networks, when independent loads with small capacity are distributed more concentratedly, cable branch boxes can be used to connect multiple branches of cables. Cable branch boxes are only used as cable branches. The main function of cable branch boxes is to branch or transfer cables, and they mainly play the role of cable branching and cable transfer.

[0003] In order to protect the electronic components inside the cable branch box, the permeability inside the cable branch box is relatively poor. At this time, when the cable branch box is used outdoors and encounters rainy weather, the moisture inside the cable branch box is difficult to remove, resulting in a short circuit in the line inside the cable branch box.

[0004] Therefore, it is particularly important to design a high-voltage cable branch box to solve the above-mentioned defects. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model designs a high-voltage cable branch box, which aims to solve the technical problem that the internal permeability of the high-voltage cable branch box is relatively poor under the existing technology, resulting in internal moisture accumulation and causing the risk of line short circuit.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A high-voltage cable branch box, comprising a box body, doors hingedly connected to the left and right sides of the box body, a plurality of air inlets on the front of the box body, first dust screens installed at positions corresponding to the plurality of air inlets inside the box body, two sets of first moisture-proof panels installed inside the box body and above the first dust screens, exhaust hoods fixedly connected to the tops of the two sets of doors, exhaust fans fixedly installed at the connection between the two sets of exhaust hoods and the box doors, and second moisture-proof panels installed inside the two sets of exhaust hoods;

[0008] The interiors of the first moisture-proof plate and the second moisture-proof plate are both filled with desiccant, and moisture absorption holes are both opened in the interiors of the first moisture-proof plate and the second moisture-proof plate. Positioning blocks are slidably connected to the interiors of the box body and the exhaust hood and on the left and right sides of the first moisture-proof plate and the second moisture-proof plate. Multiple groups of the positioning blocks are fixedly connected to the interiors of the box body and the exhaust hood on one side away from the first moisture-proof plate and the second moisture-proof plate through compression springs.

[0009] As a preferred solution of the present invention, a mounting plate is fixedly installed in the middle of the box body, and multiple groups of mounting holes are provided inside the mounting plate.

[0010] As a preferred solution of the present invention, gas springs are installed at the connection between the interior of the box body and the two sets of box doors, and the two ends of the gas springs are hinged to the box body and the box doors respectively.

[0011] As a preferred solution of the present invention, a guide rod is fixedly installed on the left end of the interior of the box, and a lifting screw is rotatably connected to the right end of the interior of the box. A motor is fixedly installed on the bottom end of the lifting screw, and a slide is slidably connected to the outer side of the guide rod. A lifting seat is installed on the outer side of the lifting screw, and the lifting seat is connected to the lifting screw through a screw nut. A cleaning brush roller is rotatably connected between the slide and the lifting seat, and the cleaning brush roller is in contact with the first dustproof net.

[0012] As a preferred solution of the present invention, a dust box is slidably connected to the bottom end of the box body and below the first dustproof net, and operating handles are fixedly connected to the left and right ends of the front of the dust box.

[0013] As a preferred solution of the present invention, ventilation holes are provided on all four sides of the exhaust hood, and second dustproof nets are fixedly installed on the outer sides of multiple groups of the ventilation holes.

[0014] As a preferred solution of the present invention, an inspection door is hinged on the top of the exhaust hood, one end of the top of the inspection door is threadedly connected to a locking knob, and a rubber sealing ring is fixedly connected to the inside of the exhaust hood and on the inner side of the inspection door.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the present invention, through the coordinated design of the box body, the air inlet, the first dust-proof net, the first moisture-proof plate, the exhaust hood, the exhaust fan and the second moisture-proof plate, the outside air enters through the multiple groups of air inlets on the front of the box body, the first dust-proof net intercepts the dust and particulate matter in the air, the air flow passes upward through the two groups of first moisture-proof plates, the desiccant absorbs moisture through the moisture absorption holes, reduces the humidity, preliminarily purifies the air, and prevents dust from entering the box and damaging the electrical components, while reducing the initial moisture in the box and preventing condensation, the humid air in the box is actively drawn to the exhaust hood by the exhaust fan, the second moisture-proof plate on the exhaust hood absorbs the residual moisture for a second time, especially the moisture that may flow back when the exhaust fan is stopped, and the dried air is finally vented The hot and humid air in the box is forced out through the exhaust hood to avoid heat accumulation. The second moisture-proof plate blocks the backflow of external moisture. At the same time, the first moisture-proof plate and the second moisture-proof plate are fixed under the action of the compression spring to ensure that the first moisture-proof plate and the second moisture-proof plate are tightly fitted into the air flow channel to avoid displacement causing dehumidification failure. After the box door or the exhaust hood is opened later, it is also convenient to inspect and replace the first moisture-proof plate and the second moisture-proof plate. At the same time, the first dustproof net can be automatically cleaned regularly to ensure its permeability and ensure air intake efficiency. The double moisture-proof protection and forced exhaust design realize dynamic air circulation, avoid moisture accumulation in traditional branch boxes, significantly reduce the risk of short circuit, and improve equipment reliability and maintenance convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0021] In the figure: 1. Box body; 101. Mounting plate; 102. Gas spring; 2. Box door; 3. Air inlet; 4. First dustproof net; 401. Guide rod; 402. Lifting screw; 403. Motor; 404. Slide; 405. Lifting seat; 406. Screw nut; 407. Cleaning brush roller; 408. Dust collection box; 409. Operating handle; 5. First moisture-proof plate; 6. Exhaust hood; 601. Ventilation port; 602. Second dustproof net; 603. Inspection door; 604. Locking knob; 605. Rubber sealing ring; 7. Exhaust fan; 8. Second moisture-proof plate; 801. Desiccant; 802. Moisture absorption hole; 803. Positioning block; 804. Compression spring. DETAILED DESCRIPTION

[0022] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Example: See Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] A high-voltage cable branch box includes a box body 1, with box doors 2 hinged on the left and right sides of the box body 1, multiple groups of air inlets 3 are opened on the front of the box body 1, and a first dust-proof net 4 is installed at a position corresponding to the multiple groups of air inlets 3 inside the box body 1, and two groups of first moisture-proof plates 5 are installed inside the box body 1 and above the first dust-proof net 4. The tops of the two groups of box doors 2 are fixedly connected to exhaust hoods 6, and the connections between the two groups of exhaust hoods 6 and the box doors 2 are fixedly installed with exhaust fans 7, and the interiors of the two groups of exhaust hoods 6 are installed with second moisture-proof plates 8.

[0025] First, the interior of the first moisture-proof plate 5 and the second moisture-proof plate 8 are filled with desiccant 801, and the interior of the first moisture-proof plate 5 and the second moisture-proof plate 8 are provided with moisture absorption holes 802. The interior of the box 1 and the exhaust hood 6 and on the left and right sides of the first moisture-proof plate 5 and the second moisture-proof plate 8 are slidably connected with positioning blocks 803. The sides of multiple groups of positioning blocks 803 away from the first moisture-proof plate 5 and the second moisture-proof plate 8 are fixedly connected to the interior of the box 1 and the exhaust hood 6 through compression springs 804. External air enters through multiple groups of air inlets 3 on the front of the box 1, and the first dust-proof net 4 intercepts dust and particulate matter in the air. The airflow passes upward through the two groups of first moisture-proof plates 5, and the desiccant 801 absorbs moisture through the moisture absorption holes 802 to reduce humidity, preliminarily purify the air, and prevent dust from entering the box and damaging electrical components. At the same time, it reduces the initial moisture in the box, prevents condensation, and reduces moisture in the box. The humid air is actively drawn to the exhaust hood 6 by the exhaust fan 7, and the second moisture-proof plate 8 on the exhaust hood 6 absorbs the residual moisture for a second time, especially the moisture that may flow back when the exhaust fan 7 is stopped. The dried air finally passes through the exhaust hood 6, forcibly discharging the humid and hot air in the box to avoid heat accumulation. The second moisture-proof plate 8 blocks the backflow of external moisture. At the same time, the first moisture-proof plate 5 and the second moisture-proof plate 8 are fixed under the action of the compression spring 804 to ensure that the first moisture-proof plate 5 and the second moisture-proof plate 8 fit tightly into the air flow channel to avoid displacement-induced dehumidification failure. After the box door 2 or the exhaust hood 6 is opened subsequently, it is also convenient to inspect and replace the first moisture-proof plate 5 and the second moisture-proof plate 8, which further improves the convenience of maintenance. The double moisture-proof protection and the forced exhaust design realize dynamic air circulation, avoid moisture accumulation in traditional branch boxes, significantly reduce the risk of short circuit, and improve equipment reliability.

[0026] Furthermore, a mounting plate 101 is fixedly installed in the middle of the box body 1. A plurality of mounting holes are provided inside the mounting plate 101. The mounting holes are used for installing high-voltage cables, and the high-voltage cables are then supported by the mounting plate 101.

[0027] Then, gas springs 102 are installed at the connection between the inside of the box body 1 and the two sets of box doors 2. The two ends of the gas spring 102 are hinged to the box body 1 and the box door 2 respectively. When the high-voltage cable needs to be installed or repaired, the corresponding box door 2 can be conveniently opened through the gas spring 102 for operation, thereby improving the convenience of operation.

[0028] Furthermore, a guide rod 401 is fixedly installed at the left end of the interior of the box body 1, and a lifting screw rod 402 is rotatably connected to the right end of the interior of the box body 1. A motor 403 is fixedly installed at the bottom end of the lifting screw rod 402. A slide 404 is slidably connected to the outside of the guide rod 401. A lifting seat 405 is installed on the outside of the lifting screw rod 402. The lifting seat 405 is connected to the lifting screw rod 402 through a screw nut 406. A cleaning brush roller 407 is rotatably connected between the slide 404 and the lifting seat 405, and the cleaning brush roller 407 is in contact with the first dustproof net 4. The motor 403 is started regularly to drive the lifting screw rod 402 to rotate, and the rotational motion is converted into a vertical linear motion of the lifting seat 405 through the screw nut 406. Both ends of the cleaning brush roller 407 are connected to the slide 404 and the lifting seat 405. It is rotatably connected and fits tightly with the first dust-proof net 4 during the lifting process. Since the surface of the cleaning brush roller 407 is distributed with nylon bristles which are both wear-resistant and elastic, and the bristles are arranged in a spiral shape to enhance the scraping effect, the cleaning brush roller 407 has sufficient friction after contacting the first dust-proof net 4, and relies on the friction of the contact surface to achieve self-rotation. The cleaning brush roller 407 rotates during movement, and the nylon bristles can effectively embed into the mesh holes of the first dust-proof net 4 to brush away the dust accumulated in the holes. During the cleaning process, when the cleaning brush roller 407 goes up, the cleaning brush roller 407 rotates clockwise, and the bristles scrape off the dust accumulated on the upper edge of the mesh holes of the first dust-proof net 4 at an inclined angle. When the cleaning brush roller 407 goes down, the cleaning brush roller 407 rotates counterclockwise, and the bristles bend in the opposite direction to peel off the residual dust at the bottom of the mesh holes, thereby ensuring the cleaning effect.

[0029] Among them, a dust box 408 is slidably connected to the bottom of the box body 1 and located below the first dustproof net 4. Operating handles 409 are fixedly connected to the left and right ends of the front of the dust box 408. The dust brushed off falls into the bottom dust box 408, realizing fully automatic cleaning of the first dustproof net 4 without manual intervention. Regular operation can maintain the permeability of the first dustproof net 4 and ensure the air intake efficiency.

[0030] Secondly, ventilation holes 601 are provided on all sides of the exhaust hood 6, and a second dust-proof net 602 is fixedly installed on the outside of multiple groups of ventilation holes 601. The hot and humid air in the box is forcibly drawn into the exhaust hood 6 by the exhaust fan 7, and the air flow is discharged outward through the ventilation holes 601 provided on all sides, forming an active heat dissipation channel. The second dust-proof net 602 covers all ventilation holes 601, intercepting external dust, insects and other pollutants, preventing foreign matter from flowing back into the exhaust hood 6, and ensuring the cleanliness of the second moisture-proof plate 8 and the exhaust fan 7.

[0031] Finally, an inspection door 603 is hinged on the top of the exhaust hood 6, and a locking knob 604 is threadedly connected to one end of the top of the inspection door 603. A rubber sealing ring 605 is fixedly connected to the inside of the exhaust hood 6 and on the inner side of the inspection door 603. Loosen the locking knob 604 to release the threaded fixation, flip the inspection door 603 upward, and rotate it around the hinge point to open it, providing a maintenance channel for the second moisture-proof plate 8 and the exhaust fan 7. After closing the inspection door 603, ensure that the rubber sealing ring 605 fits tightly against the door frame, tighten the locking knob 604 to form a waterproof and dustproof sealing structure to prevent rainwater from seeping in.

[0032] In this embodiment, the implementation scenario is specifically as follows: external air enters through multiple groups of air inlets 3 on the front of the box body 1, the first dustproof net 4 intercepts dust and particulate matter in the air, the air flow passes upward through two groups of first moisture-proof plates 5, and the desiccant 801 absorbs moisture through the moisture absorption holes 802 to reduce humidity and preliminarily purify the air to prevent dust from entering the box and damaging electrical components. At the same time, the initial moisture in the box is reduced to prevent condensation. The humid air in the box is actively drawn to the exhaust hood 6 by the exhaust fan 7, and the second moisture-proof plate 8 on the exhaust hood 6 absorbs residual moisture for a second time, especially the moisture that may flow back when the exhaust fan 7 is stopped. The dried air finally passes through the exhaust hood 6 to forcibly discharge the hot and humid air in the box to avoid heat accumulation. The moisture-proof plate 8 blocks the backflow of external moisture, and at the same time, the first moisture-proof plate 5 and the second moisture-proof plate 8 are fixed under the action of the compression spring 804, ensuring that the first moisture-proof plate 5 and the second moisture-proof plate 8 are tightly fitted into the air flow channel to avoid displacement causing dehumidification failure. After subsequently opening the box door 2 or the exhaust hood 6, it is also convenient to inspect and replace the first moisture-proof plate 5 and the second moisture-proof plate 8. At the same time, the first dust-proof net 4 can be automatically cleaned regularly to ensure its permeability and ensure air intake efficiency. The entire operation process is simple and convenient. The utility model realizes dynamic air circulation through double moisture-proof protection and forced exhaust design, avoids moisture accumulation in traditional branch boxes, significantly reduces the risk of short circuit, and improves equipment reliability and maintenance convenience.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage cable branch box, comprising a box body (1), characterized in that: The left and right sides of the box body (1) are hinged with box doors (2), the front of the box body (1) is provided with a plurality of air inlets (3), a first dustproof net (4) is installed at positions corresponding to the plurality of air inlets (3) inside the box body (1), two sets of first moisture-proof boards (5) are installed inside the box body (1) and above the first dustproof net (4), the tops of the two sets of box doors (2) are fixedly connected with exhaust hoods (6), the connection between the two sets of exhaust hoods (6) and the box doors (2) is fixedly installed with exhaust fans (7), and the interiors of the two sets of exhaust hoods (6) are installed with second moisture-proof boards (8); The interior of the first moisture-proof plate (5) and the second moisture-proof plate (8) are both filled with desiccant (801), and the interior of the first moisture-proof plate (5) and the second moisture-proof plate (8) are both provided with moisture absorption holes (802). Positioning blocks (803) are slidably connected to the interior of the box (1) and the exhaust hood (6) and on the left and right sides of the first moisture-proof plate (5) and the second moisture-proof plate (8). A plurality of groups of the positioning blocks (803) are fixedly connected to the interior of the box (1) and the exhaust hood (6) on the side away from the first moisture-proof plate (5) and the second moisture-proof plate (8) through compression springs (804).

2. A high-voltage cable branch box according to claim 1, characterized in that: A mounting plate (101) is fixedly mounted in the middle of the box body (1), and a plurality of mounting holes are provided inside the mounting plate (101).

3. The high-voltage cable branch box according to claim 1, characterized in that: Gas springs (102) are installed at the connection points between the interior of the box body (1) and the two sets of box doors (2), and the two ends of the gas springs (102) are hinged to the box body (1) and the box doors (2) respectively.

4. A high-voltage cable branch box according to claim 1, characterized in that: A guide rod (401) is fixedly installed at the left end of the interior of the box (1), and a lifting screw rod (402) is rotatably connected to the right end of the interior of the box (1). A motor (403) is fixedly installed at the bottom end of the lifting screw rod (402). A slide seat (404) is slidably connected to the outer side of the guide rod (401), and a lifting seat (405) is installed on the outer side of the lifting screw rod (402). The lifting seat (405) is connected to the lifting screw rod (402) through a screw nut (406). A cleaning brush roller (407) is rotatably connected between the slide seat (404) and the lifting seat (405), and the cleaning brush roller (407) is in contact with the first dustproof net (4).

5. A high-voltage cable branch box according to claim 4, characterized in that: A dust box (408) is slidably connected to the bottom of the box body (1) and below the first dustproof net (4), and operating handles (409) are fixedly connected to the left and right ends of the front of the dust box (408).

6. A high-voltage cable branch box according to claim 1, characterized in that: Ventilation holes (601) are provided on all four sides of the exhaust hood (6), and second dustproof nets (602) are fixedly installed on the outer sides of multiple groups of the ventilation holes (601).

7. The high-voltage cable branch box according to claim 1, characterized in that: An inspection door (603) is hingedly connected to the top of the exhaust hood (6), one end of the top of the inspection door (603) is threadedly connected to a locking knob (604), and a rubber sealing ring (605) is fixedly connected inside the exhaust hood (6) and on the inner side of the inspection door (603).

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