KR20010062989A - Cable joint for having heat distribution by using a cooling pipe - Google Patents

Abstract

PURPOSE: The cable junction box is provided to maximize heat efficiency disperses by emitting heat generated from conductors to outside of the cable quickly. CONSTITUTION: The device comprises the junction box(30) to connect the cable(32) inside, cooling pipes(40) to wind outside of the junction box(30), a copper tube(34) to protect the junction box(30), and two heat dispersion tanks(42) outside of the copper tube(34). The heat dispersion tanks(42) connect to both ends of the cooling pipes(40) and compounds for waterproof(38) is injected into inside of the copper tube(34). Two seals(36) attach to the both sides of the copper tube(34) so that compounds(38) do not leak outside. Heat generated from junction parts moves to outside through the pipes(40) and the tanks(42). So the heat disperses quickly.

Description

Cable joint box with cooling pipe for heat dissipation {Cable joint for having heat distribution by using a cooling pipe}

The present invention relates to a mold-type junction box for a high-voltage cable, and more particularly to a cable junction box provided with a heat dissipation cooling pipe that can dissipate heat generated inside the mold-type junction box for connecting the high-voltage cable to the outside. .

Conventionally, the tape is applied to a mold-type junction box in which a non-crosslinked insulating tape is rounded and then molded into a finished product in a straight junction box. Conventionally, only a waterproof compound (compound) is injected into the outside of the junction box. Will be installed on site. 1 is a view schematically showing a mold type junction box for a conventional high voltage cable. Referring to FIG. 1, a junction box for a conventional mold type high voltage cable is described. Assemble the junction box 10 to the outer circumferential surface of the site. Since the junction box 10 is assembled at the site where the two cables 12 are connected, the junction box 10 presses the two cables 12 and the connected cable 12 is firmly fixed. After the junction box 10 is assembled to the outer circumferential surface of the cable 12, the junction box 10 is protected by installing a protective copper tube 14 on the outer circumferential surface of the junction box 10. A certain space is provided inside the protective copper tube 14, and a space 18 provided in the protective copper tube 14 is filled with a mixture 18 having insulation and waterproof functions. A sealing stopper 16 is installed at both ends of the protective copper pipe 14 so that the admixture 18 does not leak. In the conventional cable 12 and the junction box 10 having such a structure, heat generated from the cable 12 is applied to the junction box 10 when electricity is supplied, and the power is transmitted by the heat applied to the junction box 10. Not only does it increase capacity, but there is a problem that causes thermal instability.

The present invention is to solve the above problems, an object of the present invention is to dissipate heat generated in the conductors in the mold-type junction box for connecting the high-voltage cable to the outside quickly dissipating cooling for heat dissipation that can maximize the thermal efficiency It is to provide a cable junction box provided with a pipe.

1 is a view schematically showing a mold type junction box for a conventional high voltage cable.

2 is a view schematically showing a cable junction box provided with a cooling pipe for heat dissipation according to the present invention.

<Brief description of symbols for the main parts of the drawings>

30: junction box 32: cable

34: copper tube for protection 36: sealing

38: waterproofing compound 40: cooling pipe

42: heat dissipation tank

In order to achieve the above object, the present invention provides a connection box assembled on the outer circumferential surface of a portion to which two cables are connected. The tank is installed, the heat dissipation tank provides a cable junction box having a heat dissipation cooling pipe, characterized in that configured to be connected to both ends of the cooling pipe.

According to the present invention, the junction box used when two high-voltage cables are interconnected does not increase the transmission capacity due to thermal phenomena due to heat generated from the conductor, and thus the cooling pipe is wound around the outer circumferential surface of the junction box. Heat dissipation tanks are connected to both ends of the cooling pipe to be mounted on the outer surface of the protective copper pipe. Since the cooling pipe is wound around the outer circumferential surface of the junction box, heat generated in the junction box moves to the heat dissipation tank side through the cooling pipe. The heat moved to the heat dissipation tank side is dissipated to the outside to quickly dissipate heat generated from the junction box and the cable.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

2 is a view schematically showing a cable junction box provided with a cooling pipe for heat dissipation according to the present invention.

Referring to FIG. 2, a cable junction box provided with a cooling pipe for heat dissipation will be described. First, a junction box 30 for fixing the cable 32 is assembled to an outer circumferential surface of a portion to which two cables 32 are connected. The cooling pipe 40 is wound around the outer circumferential surface of the junction box 30. The cooling pipe 40 is wound several times along the outer circumferential surface of the junction box 30 and the cable 32. Two heat dissipation tanks 42 are installed on the outer circumferential surface of the protective copper tube 34 protecting the junction box 30, and both ends of the cooling pipe 40 are connected to the heat dissipation tank 42, respectively. . The cooling pipe 40 is wound along the outer circumferential surface of the junction box 30, and both ends of the cooling pipe 40 are connected to the heat dissipation tank 42, and then a waterproof horn is installed in the inner space of the protective copper pipe 34. Inject cargo 38. The waterproof admixture 38 is not leaked to the outside by the sealing 36.

Heat generated in the junction box and the cable 32 is dissipated to the outside through the cooling pipe 40, and the refrigerant is injected into the heat dissipation tank 42 to connect the junction box 30 and the cable ( 32) can be forced to cool. The cooling pipe 40 is made of a material having excellent thermal conductivity, and by using the cooling pipe 40 having good bendability, the degree of fixing the junction box 30 to the cable 32 can be enhanced. In addition, the heat history of the junction box 30 through the cooling pipe 40 can be measured using a measuring instrument (not shown), so that the load increase and decrease of the conductor can be indirectly measured.

As described above, the present invention does not increase the transmission capacity due to the thermal phenomenon caused by heat generated from the conductor when the two high voltage cables are interconnected, and thus, the cooling pipe is wound around the outer circumferential surface of the junction box. Heat dissipation tanks are connected to both ends of the cooling pipes and mounted on the outer surface of the protective copper tube. Since the cooling pipes are wound on the outer circumferential surface of the junction box, heat generated in the junction box moves to the heat dissipation tank side through the cooling pipes. . The heat moved to the heat dissipation tank side is dissipated to the outside to quickly dissipate heat generated from the junction box and the cable.

Claims (2)

In the connection box assembled on the outer circumferential surface of the site where the two cables are connected, a cooling pipe is wound around the outer circumferential surface of the junction box, and a heat dissipation tank is installed outside the protective copper pipe installed on the outer circumferential surface of the junction box. Both sides of the cable connection box is provided with a heat dissipation cooling pipe, characterized in that the heat dissipation tank is connected to each other. The cable junction box according to claim 1, wherein the junction box and the cable are forcibly cooled by injecting a refrigerant into the cooling pipe through the heat dissipation tank.