A modular box-type substation

Abstract

This utility model discloses a modular box-type substation, including: a box body, modular substation units, and outgoing line components. The modular substation units are disposed within the inner cavity of the box body, and multiple outgoing line components are disposed on the bottom inner wall of the box body. Each outgoing line component includes a cable-passing hole, which is opened at the bottom of the inner wall of the box body. A connecting part for cable insertion is inserted through the middle of the cable-passing hole, and a compression sealing part is provided at the top of the connecting part to prevent moisture from entering. This utility model, by setting out the outgoing line components at the bottom of the inner wall of the box body, and utilizing the cable-passing hole in the outgoing line components, with a connecting part for cable insertion inserted through the middle of the cable-passing hole and a compression sealing part at the top of the connecting part, seals the gap between the cable insertion points, preventing moisture from entering the box body and avoiding affecting the normal operation of the modular substation units, compared to cables directly entering the box body through the cable-passing hole.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated substation technology, and in particular to a modular prefabricated substation. Background Technology

[0002] In outdoor applications of modular box-type substations, wiring cables are inserted sequentially from the bottom of the concrete foundation into the bottom of the box wall panel. During the rainy season in the south, because the concrete foundation is buried underground, the interior of the concrete foundation cavity is prone to water seepage and dampness. This causes humid air to enter the box through the gap between the wiring hole and the outer diameter of the cable. Under prolonged humid working conditions, the electrical components of the substation are prone to moisture and corrosion, which can lead to short circuits.

[0003] Therefore, in order to solve the problem of humid air entering the substation enclosure through the gap between the cable and the wiring hole in the concrete foundation, a modular box-type substation is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a modular prefabricated substation to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular prefabricated substation, comprising: Box; A modular power distribution unit is installed inside the enclosure and is used for voltage regulation. The cable outlet assembly includes multiple cable outlet assemblies disposed on the bottom inner wall of the housing. The cable outlet assembly is used for cable outlet and includes a cable through hole. The cable through hole is opened at the bottom of the inner wall of the housing. A connecting part for cable insertion is inserted through the middle of the cable through hole. A compression sealing part for preventing moisture from entering is provided at the top of the connecting part.

[0006] Preferably, the connecting portion includes: A connecting sleeve, the bottom of which is inserted into the middle of the wire hole; A limiting protrusion is symmetrically arranged on the bottom side of the connecting sleeve, and the limiting protrusion is used to engage with the inner wall of the wire hole; A filling part is provided on the outside of the connecting sleeve, and the filling part is used to seal the gap between the connecting sleeve and the inner wall of the wire hole.

[0007] Preferably, the filling part includes a rubber sleeve, which is sleeved on the outside of the connecting sleeve.

[0008] Preferably, the compression seal includes: A sealing cap, wherein the sealing cap is threaded onto the outside of the connecting sleeve; An elastic ring is disposed on the outside of the closed cover, and the elastic ring is used to close the inner cavity of the closed cover.

[0009] Preferably, the inner cavity of the elastic ring is configured in a trumpet shape, and the trumpet-shaped inner cavity of the elastic ring is used to reduce the gap between the cable and the inner wall of the sealing cover.

[0010] Preferably, the box body is hinged to a sealing door on one side, and the sealing door is used to seal the inner cavity of the box body.

[0011] Preferably, the top of the enclosure is provided with a sloping roof, which is used to divert rainwater.

[0012] The technical effects and advantages of this utility model are as follows: This invention features a cable outlet assembly at the bottom of the inner wall of the enclosure. The cable outlet assembly includes a cable insertion hole, a connecting part for cable insertion in the middle of the cable insertion hole, and a compression sealing part at the top of the connecting part. Compared to the cable entering the enclosure directly through the cable insertion hole, the combination of the connecting part and the compression sealing part in this design seals the gap between the cable insertion points, preventing moisture from entering the enclosure and avoiding affecting the normal operation of the modular substation unit. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a front view of the entire utility model.

[0015] Figure 3 This is a cross-sectional view of the cable outlet assembly of this utility model.

[0016] Figure 4 This is a schematic diagram of the connecting part of this utility model.

[0017] Figure 5 This is a top view of the threading hole of this utility model.

[0018] In the diagram: 1. Box housing; 101. Sloping roof; 2. Modular substation unit; 3. Enclosed door; 4. Outgoing cable assembly; 401. Connecting sleeve; 402. Enclosed cover; 403. Elastic ring; 404. Rubber sleeve; 405. Limiting protrusion; 406. Cable hole. Detailed Implementation

[0019] 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.

[0020] This utility model provides, for example Figure 1-5 As shown: Example 1: A modular box-type substation, comprising: box 1, modular substation unit 2 and outgoing line assembly 4; Specifically, the modular power supply unit 2 is installed inside the enclosure 1 and is used for voltage regulation. Multiple outgoing cable assemblies 4 are installed on the bottom inner wall of the enclosure 1 and are used for cable connection. It should be noted that the working principle of the whole consisting of the enclosure 1 and the modular substation unit 2 is based on the YB-12 / 0-1600 modular box-type substation. The enclosure 1 has a closed door 3 hinged on the side. The closed door 3 is used to close the inner cavity of the enclosure 1. The top of the enclosure 1 is provided with a sloping roof 101, which is used to divert rainwater. Specifically, the cable outlet assembly 4 includes a cable hole 406, which is located at the bottom of the inner wall of the housing 1. A connecting part for cable insertion is inserted through the middle of the cable hole 406, and a compression sealing part for preventing moisture from entering is provided at the top of the connecting part. It should be noted that the connecting part includes: the connecting sleeve 401, the limiting protrusion 405, and the filling part; Specifically, the bottom of the connecting sleeve 401 is inserted into the middle of the wire hole 406, and the limiting protrusion 405 is symmetrically arranged on the bottom side of the connecting sleeve 401. The limiting protrusion 405 is used to engage with the inner wall of the wire hole 406, and the filling part is arranged on the outer side of the connecting sleeve 401. The filling part is used to seal the gap between the connecting sleeve 401 and the inner wall of the wire hole 406. It should be noted that the connecting sleeve 401 is made of stainless steel. The limiting protrusion 405 is fixed to the connecting sleeve 401 by welding. The center of the wire hole 406 is a circular hole, and its side is provided with a concave hole for the limiting protrusion 405 to pass through. After the limiting protrusion 405 enters the bottom of the box 1 through the concave hole, the connecting sleeve 401 is rotated so that the limiting protrusion 405 is locked with the bottom of the box 1. Specifically, the filling part includes a rubber sleeve 404, which is sleeved on the outside of the connecting sleeve 401; It should be noted that the rubber sleeve 404 and the outer side of the connecting sleeve 401 are fixed by adhesive.

[0021] Example 2: A compression sealing part applied to the modular prefabricated substation in Example 1; It should be noted that the compression sealing part includes: a sealing cap 402 and an elastic ring 403; Specifically, the sealing cover 402 is threaded onto the outside of the connecting sleeve 401, and the elastic ring 403 is disposed on the outside of the sealing cover 402. The elastic ring 403 is used to close the inner cavity of the sealing cover 402. It should be noted that the elastic ring 403 is made of silicone, the inner wall of the sealing cover 402 is threaded, the outer side of the connecting sleeve 401 is threaded in a matching manner, and the inner cavity of the elastic ring 403 is flared. The flared inner cavity of the elastic ring 403 is used to reduce the gap between the cable and the inner wall of the sealing cover 402, so that the cable is in close contact with the inner wall of the elastic ring 403.

[0022] In practical use, this utility model provides a cable outlet assembly 4 at the bottom of the inner wall of the housing 1. The cable outlet assembly 4 includes a cable insertion hole 406, and a connecting part for cable insertion is inserted in the middle of the cable insertion hole 406. The top of the connecting part is provided with a compression sealing part. Compared with the cable directly entering the housing 1 through the cable insertion hole 406, the combination design of the connecting part and the compression sealing part of this design seals the gap between the cable insertion and prevents moisture from entering the housing 1, thus avoiding affecting the normal operation of the modular substation unit 2.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular prefabricated substation, characterized in that, include: Box (1); Modular substation unit (2), the modular substation unit (2) is disposed in the inner cavity of the housing (1), the modular substation unit (2) is used for voltage regulation; Outgoing cable assembly (4), multiple outgoing cable assemblies (4) are disposed on the bottom inner wall of the housing (1). The outgoing cable assembly (4) is used for cable outgoing. The outgoing cable assembly (4) includes a wire hole (406). The wire hole (406) is opened at the bottom of the inner wall of the housing (1). A connecting part for cable insertion is inserted through the middle of the wire hole (406). A compression sealing part for preventing moisture from entering is provided at the top of the connecting part.

2. A modular prefabricated substation according to claim 1, characterized in that, The connecting portion includes: A connecting sleeve (401) is inserted into the middle of a wire hole (406) at its bottom. A limiting protrusion (405) is symmetrically arranged on the bottom side of the connecting sleeve (401). The limiting protrusion (405) is used to engage with the inner wall of the wire hole (406). A filling part is provided on the outside of the connecting sleeve (401), and the filling part is used to close the gap between the connecting sleeve (401) and the inner wall of the wire hole (406).

3. A modular prefabricated substation according to claim 2, characterized in that, The filling part includes a rubber sleeve (404), which is sleeved on the outside of the connecting sleeve (401).

4. A modular prefabricated substation according to claim 2, characterized in that, The extrusion seal includes: A sealing cap (402) is threaded onto the outside of the connecting sleeve (401); An elastic ring (403) is disposed on the outside of the sealing cover (402) and is used to seal the inner cavity of the sealing cover (402).

5. A modular prefabricated substation according to claim 4, characterized in that, The inner cavity of the elastic ring (403) is configured as a horn shape, and the horn-shaped inner cavity of the elastic ring (403) is used to reduce the gap between the cable and the inner wall of the sealing cover (402).

6. A modular prefabricated substation according to claim 1, characterized in that, The box (1) is hinged to a closed door (3) on one side, and the closed door (3) is used to close the inner cavity of the box (1).

7. A modular prefabricated substation according to claim 1, characterized in that, The top of the box (1) is provided with a sloping roof (101) for the diversion of rainwater.

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