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KR-102962902-B1 - A SLIM CABLE CONNECTION BOX

KR102962902B1KR 102962902 B1KR102962902 B1KR 102962902B1KR-102962902-B1

Abstract

The present invention relates to a slim cable junction box. A slim cable junction box according to one embodiment of the present invention is characterized by comprising a junction box installed on a track wall inside a tunnel, cable supports that respectively support a power-side cable and a load-side cable inserted into both sides of the junction box, and a connection part that connects the ends of the power-side cable and the load-side cable respectively at the inner center of the junction box. According to one embodiment of the present invention, a slim cable junction box can be easily installed on the inner wall of a common conduit or tunnel by applying a compact plug-in type straight connector, and has the advantage of ensuring stability by applying a coupling with a compact and safe fixing structure so that the extra-high voltage cable does not become separated even when vibration or shock occurs.

Inventors

  • 이강섭

Assignees

  • 천호산업주식회사

Dates

Publication Date
20260512
Application Date
20240708

Claims (7)

  1. A connection box (110) installed on the track wall inside the tunnel; A cable support (120) disposed inside the connection housing (110) and supporting the power side cable and the load side cable inserted into both sides of the connection housing (110), respectively; and It includes a connection part (130) disposed in the inner center of the connection housing (110) and connecting the ends of the power side cable and the load side cable, respectively. The above connection housing (110) is, It is fixedly installed on the above-mentioned track wall via one or more bolts, and the installation direction can be changed to either the horizontal or vertical direction. The above connection part (130) is, A power side insertion part (131) to which a plug-in connection method is applied to which the end of the power side cable is inserted; A load-side insertion part (132) to which a plug-in connection method is applied to which the end of the load-side cable is inserted; and It includes a backup load-side insertion part (133) that branches off from the connection portion between the power-side insertion part (131) and the load-side insertion part (132) and applies a plug-in connection method, The above power side insertion part (131) and the above load side insertion part (132) are, A straight connection connector method is applied so that the power-side cable and the load-side cable are connected in a straight line, and In the above-mentioned preliminary load-side insertion part (133), A slim cable connection box characterized by having an insulating cap (133-1) that can be inserted into or removed from the above-mentioned auxiliary load side insertion part (133) and maintains an insulating state.
  2. In Article 1, The above connection housing (110) is, A plurality of power side cable insertion slits (111) for inserting the above power side cable; and The above-mentioned load-side cable includes a plurality of load-side cable insertion slits (112) into which the load-side cable is inserted, A slim cable connection box characterized in that the plurality of power-side cable insertion slits (111) and the plurality of load-side cable insertion slits (112) are formed to correspond to the placement position and number of the connection part (130).
  3. In Article 2, The above cable support (120) is, A power-side cable support (121) positioned adjacent to the plurality of power-side cable insertion slits (111) inside the connection housing (110); and It includes a load-side cable support (122) positioned adjacent to the plurality of load-side cable insertion slits (112) inside the connection housing (110), and Each of the above power-side cable support (121) and the above load-side cable support (122) has, A slim cable connection box characterized by having a binding means (200) for binding and fixing the power side cable or the load side cable.
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  5. In Article 1, In the above power-side insertion part (131) and the above load-side insertion part (132), A slim cable connection box characterized by having fixed couplings provided for each end of the power-side cable and the load-side cable, respectively, to securely fasten and fix them.
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  7. In Article 1, In each of the above load-side insertion part (132) and the above reserve load-side insertion part (133), A slim cable connection box characterized by having a current status output means (300) that indicates the current status for each load-side insertion part.

Description

A slim cable connection box The present invention relates to a slim cable junction box, and more specifically, to a slim cable junction box that can be easily installed on the inner wall of a common conduit or tunnel by applying a compact plug-in type straight connector, ensures stability by applying a coupling with a compact and safe fixing structure so that the extra-high voltage cable does not become disconnected even in the event of vibration or shock, and minimizes damage repair or maintenance time through a structure that allows for a spare connection of the load-side cable. Generally, when installing high-voltage distribution lines between railway stations, straight junction boxes for high-voltage cables are installed at predetermined intervals between the receiving substations within each station premises, and manholes are installed at regular intervals between the straight junction boxes. The high-voltage cables are then passed through the manholes and junction boxes, inserted into protective conduits, and buried. In the case of such conventional straight connection boxes, power must be cut off to the entire line during emergencies caused by accidents or maintenance work, which has the disadvantage of prolonging the time required for damage recovery and maintenance. To overcome these drawbacks, cable connector-type or busbar-type cable junction boxes have been developed in the past; however, these cable junction boxes cannot be installed or applied inside tunnels due to their large volume, and they have limitations such as a complex cable connector structure and the requirement to individually bolt cables to prevent the connectors from detaching due to vibration and shock. Accordingly, there is a need for a cable junction box that can be applied even in confined spaces within tunnels, has an easy and simple connection method, and minimizes time for damage repair or maintenance. FIG. 1 is a drawing showing the overall configuration of a slim cable connection box (100) according to one embodiment of the present invention. FIG. 2 is a front view showing the state in which a slim cable connection box (100) is installed horizontally on a flat wall inside a tunnel. FIG. 3 is a side view showing the slim cable connection box (100) illustrated in FIG. 2 installed horizontally on a flat wall inside a tunnel. FIG. 4 is a top view showing the state in which the slim cable connection box (100) illustrated in FIG. 2 is installed horizontally on a flat wall inside a tunnel. FIG. 5 is a side view showing the state in which a slim cable connection box (100) is installed in close contact with a curved wall inside a tunnel in a horizontal direction. FIG. 6 is a side view showing the state in which a slim cable connection box (100) is installed upright in a horizontal direction on a curved wall inside a tunnel. FIG. 7 is a front view showing the state in which a slim cable connection box (100) is installed vertically on a flat wall inside a tunnel. FIG. 8 is a side view showing the slim cable connection box (100) illustrated in FIG. 7 installed vertically on the wall inside the tunnel. Hereinafter, specific details for implementing the present invention will be described in detail with reference to the attached drawings. However, in the following description, specific descriptions regarding widely known functions or configurations will be omitted if there is a risk that the gist of the present invention may be unnecessarily obscured. In the attached drawings, identical or corresponding components are given the same reference numerals. Additionally, in the description of the following embodiments, the description of identical or corresponding components may be omitted. However, even if a description of a component is omitted, it is not intended that such component is not included in any embodiment. The advantages and features of the disclosed embodiments and the methods for achieving them will become clear by referring to the embodiments described below in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms, and these embodiments are provided merely to make the present invention complete and to fully inform those skilled in the art of the scope of the invention. The terms used in this specification will be briefly explained, and the disclosed embodiments will be described in detail. The terms used in this specification have been selected to be as generally used as possible, taking into account their functions in the present invention; however, these terms may vary depending on the intent of those skilled in the relevant field, case law, the emergence of new technologies, etc. Additionally, in specific cases, terms may be arbitrarily selected by the applicant, and in such cases, their meanings will be described in detail in the relevant description of the invention. Therefore, the terms used in thi