High-voltage cable branch box with good sealing performance

Abstract

The utility model discloses a well-sealed high-voltage cable branch box, which belongs to the technical field of cable branch boxes, and aims to solve the problem that dust or water vapor enters the high-voltage cable branch box through a heat dissipation opening and pollutes and corrodes equipment in a box body, the well-sealed high-voltage cable branch box comprises a mounting shell, a side opening box door is distributed on the side surface of the mounting shell, and the side opening box door is arranged on the side surface of the mounting shell. A gap between the side-opening box door and the mounting shell is sealed through a door slot sealing structure, a buried auxiliary heat dissipation structure used for heat dissipation is mounted at the bottom end of the mounting shell, and the gap between the mounting shell and the side-opening box door is sealed through the door slot sealing structure. Therefore, external dust can be effectively prevented from entering the interior of the mounting shell through the door slot, the bottom end of the mounting shell is connected with a buried auxiliary heat dissipation structure to conduct heat dissipation operation on the interior of the mounting shell, the heat dissipation performance is guaranteed, and meanwhile the external dust can be effectively prevented from entering the interior of the mounting shell.

Description

Technical Field

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

[0002] High-voltage cable branch boxes are widely used in node connections of 10KV cable systems. They are the main electrical equipment for gathering and branching cables after they come out of the switch cabinet. There are many types of high-voltage cable branch boxes on the market. Since the equipment inside the branch box will generate a certain amount of heat during operation, in order to dissipate heat inside, openings for heat dissipation are opened on the box body. However, dust or water vapor will enter the interior of the box through these openings, which will cause pollution and corrosion to the equipment inside the box. Over time, the internal electrical components will be damaged, thereby affecting the normal conductive operation. In order to ensure the normal operation of the high-voltage cable branch box and at the same time have a good heat dissipation system inside the box, we propose a sealed high-voltage cable branch box. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a well-sealed high-voltage cable branch box, thereby solving the problem that dust or water vapor may enter the interior of the high-voltage cable branch box through the heat dissipation ports, causing pollution and corrosion to the equipment inside the box.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A sealed high-voltage cable branch box comprises a mounting shell, a side of the mounting shell is provided with a side-opening box door, a gap between the side-opening box door and the mounting shell is sealed by a door gap sealing structure, and an underground auxiliary heat dissipation structure for heat dissipation is installed at the bottom end of the mounting shell.

[0006] As a preferred technical solution of the utility model, a bottom support plate is installed at the bottom end of the mounting shell, and a top plate is arranged at the top end of the mounting shell. The top plate is arranged obliquely and is arranged higher at the position where it intersects with the side opening door, and the edge of the top plate is arranged outside the edge of the mounting shell.

[0007] As a preferred technical solution of the utility model, a sealing baffle is installed inside the installation shell at a position corresponding to the side door, a mounting groove is opened outside the installation shell at a position corresponding to the side door, and a handle is installed on the side door.

[0008] As a preferred technical solution of the utility model, the door gap sealing structure includes a mouth frame, the installation shell and the side-opening box door are both provided with card slots, and the mouth frame is provided with protrusions at positions corresponding to the card slots.

[0009] As a preferred technical solution of the utility model, the buried auxiliary heat dissipation structure includes an air outlet pipe and an air inlet pipe, both of which are connected to the inner bottom end of the mounting shell through a fixed pipe, the bottom ends of the air outlet pipe and the air inlet pipe are connected through a connecting pipe, and a fan is installed at the position of the inner bottom end of the mounting shell corresponding to the air outlet pipe.

[0010] As a preferred technical solution of the utility model, top frames are installed at the positions of the fixed pipe ports corresponding to the insides of the air outlet pipe and the air inlet pipe, and a second sealing gasket is installed between the top frame and the fixed pipe port. A fixing groove is opened at the bottom end of the mounting shell outside the fixed pipe, and the ports of the air outlet pipe and the air inlet pipe are arranged inside the fixing groove, and a first sealing gasket is installed inside the fixing groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the gap between the mounting shell and the side-opening box door is closed by a door gap sealing structure, thereby effectively preventing external dust from entering the interior of the mounting shell through the door gap, and a buried auxiliary heat dissipation structure is connected to the bottom end of the mounting shell to perform heat dissipation operations on the interior of the mounting shell, thereby ensuring the heat dissipation performance and effectively preventing external dust from entering the interior of the mounting shell, thereby meeting people's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 It is a partial enlarged view of the A1 end of the utility model;

[0015] 1-installation shell; 2-bottom support plate; 3-top plate; 4-side opening box door; 5-door gap sealing structure; 6-underground auxiliary heat dissipation structure; 7-sealing baffle; 8-installation slot; 9-handle; 10-card slot; 11-mouth frame; 12-bump; 13-exhaust pipe; 14-intake pipe; 15-fan; 16-pillar; 17-fixing slot; 18-sealing gasket 1; 19-top frame; 20-sealing gasket 2; 21-connecting pipe. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3 , the utility model provides a technical solution:

[0018] A well-sealed high-voltage cable branch box comprises a mounting shell 1, and a side-opening box door 4 is distributed on the side of the mounting shell 1. The side-opening box door 4 is generally provided with two, namely, one on the front side and one on the left side or the right side, so as to facilitate maintenance operations. The gap between the side-opening box door 4 and the mounting shell 1 is sealed by a door gap sealing structure 5, so as to prevent external dust and water vapor from entering the interior of the mounting shell 1 through the door gap. The bottom end of the mounting shell 1 is installed with an underground auxiliary heat dissipation structure 6 for heat dissipation, so as to perform heat dissipation operations on the interior of the mounting shell 1.

[0019] A bottom support plate 2 is installed at the bottom end of the mounting shell 1, and a top plate 3 is arranged at the top end of the mounting shell 1. The top plate 3 is arranged obliquely, and is arranged higher at a position where it intersects with the side-opening box door 4. The edge of the top plate 3 is arranged outside the edge of the mounting shell 1, so that raindrops can flow along the slope when it rains, minimizing the amount of rainwater falling on the side-opening box door 4, and at the same time allowing the accumulated snow to slide to the rear side.

[0020] A sealing baffle 7 is installed at the position of the side-opening door 4 inside the installation shell 1, thereby ensuring a certain degree of sealing between the side-opening door 4 and the installation shell 1, thereby improving the sealing effect. A mounting groove 8 is opened at the position of the side-opening door 4 on the outside of the installation shell 1, and a handle 9 is installed on the side-opening door 4 to facilitate the opening operation of the side-opening door 4.

[0021] The door gap sealing structure 5 includes a mouth frame 11, and a slot 10 is provided on the mounting shell 1 and the side-opening box door 4. A protrusion 12 is installed at the position of the mouth frame 11 corresponding to the slot 10, thereby covering the position of the door gap to prevent dust from entering the interior of the mounting shell 1.

[0022] The buried auxiliary heat dissipation structure 6 includes an air outlet pipe 13 and an air inlet pipe 14, which are both connected to the inner bottom end of the mounting shell 1 through a fixed pipe, and the bottom ends of the air outlet pipe 13 and the air inlet pipe 14 are connected through a connecting pipe 21. A fan 15 is installed at the position of the inner bottom end of the mounting shell 1 corresponding to the air outlet pipe 13. The fan 15 is left and right, so that the air flow flows along the mounting shell 1, the air outlet pipe 13, the connecting pipe 21, the air inlet pipe 14, and the mounting shell 1. Since the air outlet pipe 13, the connecting pipe 21, and the air inlet pipe 14 are all buried underground, and the temperature underground is lower than the temperature on the surface, it is convenient to dissipate heat for them, and the number of connecting pipes 21 is proportional to the internal space of the mounting shell 1, and the connecting pipe 21 is preferably set as a copper pipe.

[0023] A top frame 19 is installed at the position of the fixed pipe port corresponding to the inside of the air outlet pipe 13 and the air inlet pipe 14, and a sealing gasket 20 is installed between the top frame 19 and the fixed pipe port. A fixing groove 17 is opened at the bottom end of the mounting shell 1 outside the fixed pipe, and the ports of the air outlet pipe 13 and the air inlet pipe 14 are both arranged inside the fixing groove 17, and a sealing gasket 18 is installed inside the fixing groove 17, thereby ensuring the sealing between the air outlet pipe 13 and the mounting shell 1 and between the mounting shell 1 and the air inlet pipe 14.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed high-voltage cable branch box, comprising a mounting shell (1), characterized in that: A side opening box door (4) is provided on the side of the installation shell (1); a gap between the side opening box door (4) and the installation shell (1) is sealed by a door gap sealing structure (5); and a buried auxiliary heat dissipation structure (6) for heat dissipation is installed at the bottom end of the installation shell (1).

2. A sealed high-voltage cable branch box according to claim 1, characterized in that: A bottom support plate (2) is installed at the bottom end of the installation shell (1), and a top plate (3) is arranged at the top end of the installation shell (1). The top plate (3) is arranged obliquely and is arranged higher at a position where it intersects with the side opening door (4), and the edge of the top plate (3) is arranged outside the edge of the installation shell (1).

3. A sealed high-voltage cable branch box according to claim 1, characterized in that: A sealing baffle (7) is installed at a position inside the installation shell (1) corresponding to the side-opening box door (4), a mounting groove (8) is opened at a position outside the installation shell (1) corresponding to the side-opening box door (4), and a handle (9) is installed on the side-opening box door (4).

4. A sealed high-voltage cable branch box according to claim 1, characterized in that: The door gap sealing structure (5) comprises a mouth-shaped frame (11), the installation shell (1) and the side-opening box door (4) are both provided with a card slot (10), and a protrusion (12) is installed at a position on the mouth-shaped frame (11) corresponding to the card slot (10).

5. A sealed high-voltage cable branch box according to claim 1, characterized in that: The buried auxiliary heat dissipation structure (6) comprises an air outlet pipe (13) and an air inlet pipe (14); the air outlet pipe (13) and the air inlet pipe (14) are both connected to the inner bottom end of the mounting shell (1) via a fixing pipe; the bottom ends of the air outlet pipe (13) and the air inlet pipe (14) are connected via a connecting pipe (21); and a fan (15) is installed at a position of the inner bottom end of the mounting shell (1) corresponding to the air outlet pipe (13).

6. A sealed high-voltage cable branch box according to claim 5, characterized in that: A top frame (19) is installed at the position of the fixed pipe port corresponding to the inside of the air outlet pipe (13) and the air inlet pipe (14), and a second sealing gasket (20) is installed between the top frame (19) and the fixed pipe port. A fixing groove (17) is opened at the bottom end of the mounting shell (1) outside the fixed pipe, and the ports of the air outlet pipe (13) and the air inlet pipe (14) are arranged inside the fixing groove (17), and a first sealing gasket (18) is installed inside the fixing groove (17).

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