KR101816241B1 - High voltage shield cable connector used for airfield light - Google Patents

Abstract

The present invention relates to a connector for an aerial light screened cable. An electric field distributing part for relieving an electric field is installed in a connection part between a connector and a screened cable, and curved parts, which must be made during connection with a lamp controller and an isolated transformer installed in a small space when cables are installed in a light casing, are maximally removed, and thus, damage to the connection part and poor waterproofing are solved to eliminate a dielectric breakdown. To achieve the purpose, the connector for an aerial light screened cable comprises: female and male linear connectors (100)(200) including electric field relieving parts (130)(230) connected with the screened cable (C/A); female and male connection parts (310)(320) matched with the female and male linear connectors (100)(200); and a U-shaped curved connector (300) connecting the components. Curved connection between the female and male linear connectors (100)(200) and the U-shaped curved connector (300) and linear connection between the female linear connector (100) and the male linear connector (200) are able to be combined.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a connection member for an air-

The present invention relates to a connecting member for connecting a high-voltage shielded cable used in aeronautical lighting, and more particularly, to a connecting member for connecting a high-voltage shielded cable used for aerial lighting, The present invention relates to a connection material for an air-conditioning shielded cable, which can maintain an insulation state for a long period of time by maximizing the waterproof characteristic of a connection portion of an isolation transformer and an air-conditioning cable.

The aeronautical lighting system (aeronautical fire facility) collectively refers to an equalization or lighting facility installed on the ground or an aircraft to assist the safe operation of an aircraft, such as an airport lighting facility, an airway lighting facility, an airborne obstacle lighting facility, and an aircraft lighting facility.

Among these air traffic lights, the airport lighting system is also called an airport lighting system. A unidirectional exposure lighting system installed on a runway entrance road is used to take off or land on an aircraft to be landed, (Runway) that is installed on both ends of the runway in order to indicate the end (start) of the runway on the aircraft that is running on the runway, ) Extension, etc., which is installed to inform the end.

Such aerial lighting may include at least one lamp mounted on an aircraft or runway for use as a light source, a constant current regulator supplying power, an isolation transformer connected to the constant current regulator to receive the power, and an isolation transformer between the isolation transformer and the lamp And a lamp controller connected to control the lighting of the lamp.

At this time, the insulation transformer and the lamp controller other than the lamp are generally buried in the ground so as not to interfere with the operation of the aircraft.

One example of such aviation equilibrium is disclosed in Patent Document 1 (airline and guidance using LED, etc.), Patent Document 2 (aviation equipments), and Patent Document 3 (cable hanger for aviation lighting steel hall).

Among them, Patent Document 3 is characterized in that a cable hanger is provided so as to make it easy to organize cables for connection and disconnection, but it has a problem to be described later and is not reliable.

As shown in FIG. 1, a handhole 11 and a hand hole 11, which are installed as an underground structure in an area adjacent to the lamp 20 installed at equal intervals and accommodate the insulation transformer 30 and the lamp controller, (10) including a handhole cover (12) that closes a handhole entrance.

However, in general aviation lighting, since the insulation transformer 30 and the lamp controller are separate devices, they are housed in the respective cases, and therefore, there is a problem in which the total volume of the insulation transformer 30 and the lamp controller is limited .

The aerial lighting power cable is a high-voltage (6.6kV) CV (crosslinked polyethylene insulated vinyl sheathed cable) or a power shielded cable (C / A) containing a semiconductive layer with a rated voltage of 5kV and a nominal cross- There is a disadvantage in that insulation breakdown occurs when bent in a narrow place in the equalization casing 10.

In particular, the hinged joint 40 is used in the form of a simple linear insulator so as to connect (disconnect) and separate the aerial lighting, the isolation transformer, and the power shielding cable.

Therefore, deterioration and insulation breakdown frequently occur due to the concentration of electrical stress in the curved connection section during long-term use.

In addition, the linear connection member 40 having such a simple insulator function makes it difficult to arrange the shielded cables in a narrow space, thereby complicating the installation space of the isolation transformer 30 and thus causing safety problems.

In other words, in the conventional connection member 40 having the function of insulating material, a phenomenon that the contact surface widenes in a state in which the connection member connecting portion (Interface) is bent in a straight shape as a plug and a receptacle function occurs, and even if the surface of the connecting portion is subjected to taping, In order to maintain airtightness, it is necessary to keep the airtightness by covering the heat ex- haust tube by placing the ground wire on the surface of the cable during the cable and connection re- When a grounding line of a circular structure is placed, pores are generated. When water is submerged in the ground due to the inflow of water, there is a possibility of inflow of water and waterproof property is weak.

Korean Patent Laid-Open No. 10-2008-0068597 (published on Jul. 23, 2008) Korean Patent Laid-Open No. 10-2015-0049416 (published on May 5, 2015) Korean Patent Laid-Open No. 10-2015-0049416 (published on May 5, 2015)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a connection material for an airtight equalization shielded cable having an electric field distribution part for alleviating an electric field at a connection part between a shielded cable and a connection material.

In addition, the present invention eliminates the bending part that necessarily occurs when connecting the shielding cable to the insulation transformer and the lamp controller which are disposed in a narrow space in a circular limited limited lighting casing and installation, And to provide a connection material for an air-conditioning shielded cable in which dielectric breakdown is eliminated.

In addition, the present invention provides a connection material for an air-conditioning light-shielding cable which can maximize prevention of insulation breakdown due to moisture absorption by providing a waterproof bonding to a connection portion in a narrow space such as an equalizing casing and a complete water- It is aimed at doing.

That is, the present invention provides a connecting member for a shielded cable, which is composed of a U-shaped connecting member with a curved portion for connection between an insulating transformer and a straight connecting member having an electric field portion for alleviating electric field concentration at a connecting portion of an air- have.

Means for Solving the Problems In order to achieve the above objects,

An insulating transformer installed in an equalization casing as an underground structure, a lamp controller and a lamp exposed to the outside by a high-voltage shielded cable,

A female and male straight line connecting member having an electric field relieving portion connecting the shielded cable;

And a bending connection member bending in a U shape by connecting the arm and the water connection unit corresponding to the female and male straight connection members,

Can be achieved by a connecting material for an airtight equalization shielded cable capable of a bending connection by the connection between the female and male straight connecting members and a U-shaped bending connecting member or a straight connecting between the straight connecting member of the arm and the straight connecting member of the arm .

According to the present invention as described above, deterioration due to the electric field concentration of the shielded cable prevents the occurrence of dielectric breakdown during long-term use and prolongs the service life of the product.

In addition, according to the present invention, the occurrence of frequent insulation breakdown due to moisture absorption due to a bent portion between connection members installed in a narrow space such as an air-lit lighting casing is blocked by a bending connection member applied to a bending portion.

Further, according to the present invention, a waterproof effect can be expected also in a connecting portion of an electric power section buried under ground by a bending connection having a structure capable of waterproof even in the bending of the grounding portion of the shielded cable.

In addition, according to the present invention, it is possible to prevent deterioration and insulation breakdown due to concentration of electrical stress in a connection section during long-term use, thereby ensuring a service life.

1 is a schematic cross-sectional view showing an example of an aerial lighting installation.
2 is a perspective view of the present invention.
3 is a cross-sectional view of a linear connecting member of the arm of the present invention.
4 is a cross-sectional view of a linear connecting member of the present invention.
5 is a cross-sectional view of the bending connection member of the present invention.
Fig. 6 is a cross-sectional view of a bending connection member, which is an embodiment of the present invention, in which an arm and a number of linear connection members are assembled.
7 is a cross-sectional view of a state in which a linear connecting member of an arm and a linear connecting member of water are assembled, which is another use example of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. 2 to 7. FIG.

As shown in FIG. 2, the connecting member for an air-conditioning light shielding cable according to the embodiment of the present invention includes a linear connecting member 100 of an arm, a number of linear connecting members 200 And a U-shaped bending connection member 300 which is assembled with the female and male straight connecting members 100 and 200 and electrically connected to each other.

That is, the present invention mainly includes an arm / water line connecting member 100 (200) having an electric field relaxation part 130 (230) connecting a shielded cable (C / A) And a bending connection member 300 bent in a U shape by connecting the connecting portions 310 and 320 to connect the connecting members 100 and 200 in correspondence with the connecting member 100 100, 200) and the U-shaped bending connection member 300, or a linear connection between the straight connection member 100 of the arm and the straight line connection member 200 can be used.

This invention is used for connection of a shielded cable (C / A) with an insulation transformer 20 and a lamp controller in an equalization casing 10 with a narrow confined space, as shown in the aerial lighting setup of Fig. 1 .

6, the straight connecting member 100 of the arm connected to the shielded cable C / A is assembled and connected to the connecting portion 310 of the number of the U-shaped bending connection members 300, A number of linear connection members 200 are assembled and connected to the connecting portion 320 of the arm of the bending connection member 300 at the end portion of the shielded cable C / A drawn out from the insulation transformer 20, A shielded cable (C / A) drawn in the equalizing casing 10 is connected to another equalizing casing 20 which is adjacent again via an isolation transformer 20.

As shown in FIG. 7, the connection of the remaining shielded cable (C / A) of the insulation transformer 20 and the lamp 30 is electrically connected by the assembled connection of the female and male straight connecting members 100 and 200 do.

3, the straight line connecting member 100 of the arm has a connecting socket 120 provided with a cable connecting portion 121 to which the conductor C / A-1 of the shielded cable C / A is connected, And a semiconductive layer forming the electric field relieving part 130 is formed on the side of the cable connecting part 121. The semiconductive layer forming the electric field relieving part 130 is formed on the side of the connecting part 120, A cable conductor C / A-1 having a cable insertion portion 112 formed integrally with an insulation body 110 and having a shielded cable C / A laid thereon is inserted into the cable coupling portion 121 Lt; / RTI >

The thus shielded cable C / A is waterproofed by taping the outer circumferential surface of the cable insertion portion 112 together with the ground wire G / C using an insulating tape or the like.

The inlet of the connecting socket 120 is composed of a plurality of elastic pieces cut in the longitudinal direction so that the number of the connecting plugs 220 of the linear connecting material 200 and the connecting plugs 312 of the bending connecting member 300, A reliable connection is provided.

4, a number of straight line connecting members 200 are connected to a connecting plug 220 having a cable connecting portion 221 to which a conductor C / A-1 of the shielded cable C / A is connected, An insulating insertion protrusion 211 of a reduced diameter inserted into the extension inlet 111 of the linear connection member 100 of the arm and a distal end portion of the connection plug 220 are protruded from the distal end of the insulation insertion protrusion 211 And a semiconductive layer for forming an electric field relieving portion 230 is formed integrally with the insulating body 210 on the side of the cable connecting portion 221 so as to have a cable inserting portion 212. The shielding cable C / A) are inserted into the cable conductor (C / A-1).

The thus shielded cable C / A is waterproofed by taping the outer circumferential surface of the cable insertion portion 212 together with the ground wire G / C using an insulating tape or the like.

Each of the electric field relieving parts 130 and 230 shown in the female and male straight line connecting members 100 and 200 is connected to each of the cable inserting parts 112 and 212 to which the shielded cable C / (Not shown), which is formed integrally with the insulating bodies 110 and 210 of the high-pressure insulating rubber, in addition to the cone-shaped shielding bodies 131 and 231 for forming the semiconductive rubber, It is preferable to form it into a cone shape.

5, the bending connection member 300 includes a connection plug 312 having a connection pin portion 313 to be connected to the connection socket 120 of the straight connection member 100 of the arm, 325 which are machined at the respective ends of the connection plugs 312 and the connection sockets 320 in a state where the connection sockets 320 connected to the connection plugs 220 The linear connecting member 100 of the arm is formed on the outer side of the connecting body 340 by molding the insulating body 330 in a state where the connecting conductor 340 is laterally assembled in a U shape by screw grooves 341 and 342 of the connecting conductor 340, The insertion protrusion 311 and the arm assembly opening 331 formed in the expansion inlet 111 of the male connector 200 and the female connector 310 of the male connector 300, A connecting portion 320 of an arm having an inlet 321 and a water assembly inlet 332 is provided.
At this time, the female and male connecting portions 310 and 320 have a thickness expanded toward the front end to accommodate the outer circumferential surfaces of the connecting ends of the straight connecting member 100 and the male straight connecting member 200, A plurality of O-ring protrusions 335 protruding at regular intervals are formed, and the separation preventing protrusions 336 are integrally formed on the outer circumferential surface ends to form the arm and water assembly inlets 331 and 332.

delete

As shown in FIG. 6, by the O-ring protrusion 335 and the separation preventing protrusion 336, airtightness is ensured when assembling the straight line connecting member 200 and the arm straight line connecting member 100, And is tightly held in a state in which the complete airtightness is maintained while being compressed by the band or binding tape B / T.

The connection socket 320 is also composed of a plurality of elastic pieces cut longitudinally in the same manner as the connection socket 120 of the linear connection member 100 of the arm, A reliable connection is provided at the time of connection with the antenna 220.

The stop projections 113 and 213 are protrudingly formed on the outer circumferential surface of the linear connection member 100 of the arm on the side of the expansion inlet 111 and on the outer circumferential surfaces of the number of the linear connection members 200 on the side of the insulation insertion protrusions 211 7, the connecting plug 220 of the straight line connecting member 200 is connected to the connecting socket 120 of the linear connecting member 100 of the arm, and at the same time, (B / T) is prevented from being tilted during the taping work for sealing the clearance between the connection ends, the inner airtight state is maintained in a state in which the inner airtightness is maintained.

As described above, the female / male straight connecting member 200 of the present invention is provided with the cone type electric field relieving parts 130 and 230 for alleviating the electric field concentrated on the shielded cable C / It is possible to prevent dielectric breakdown by deterioration,

There is an advantage that it is easy to arrange the waterproof characteristic and the cable for aviation equipments by preventing the bending connection of the shielded cable connected to the isolation transformer within the equalization casing limited to the narrow space.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Included in thought.

100: female straight connecting member 110, 210, 330: insulating body
111: expansion inlet 112: cable insertion portion
120, 320: connection socket 121, 221: cable coupling part
130, 230: electric field relieving parts 131, 231: cone shaped shield body
211: insulator insertion protrusion 220, 312: connection plug
300: bending connection member 310: connecting portion of the arm
313: connection pin part 320: water connection part
331: Assembly entrance of arm 332: Assembly entrance of water
335: O-ring boss 340: Coupling conductor

Claims (5)

(C / A) for connecting an insulation transformer, a lamp controller, and a lamp exposed to the outside by a high-voltage shielded cable (C / A) And an electric field relieving portion 130 and 230 connecting the arm portions 100 and 200 and the arm portions 100 and 200 connected to the arm portions 100 and 200, And a bending connection member 300 bent in a U shape by connecting the connection portions 310 and 320. The connection between the female and male straight connecting members 100 and 200 and the U- And a linear connection between the linear connecting member (100) of the arm and the linear connecting member (200) of the arm,
The straight connection member (100) of the arm
The connection socket 120 having the cable connecting portion 121 to which the conductor C / A-1 of the shielded cable C / A is connected is formed with the insulating body 110 on the outside, And a semiconductive layer forming the electric field relieving part 130 is formed on the cable connecting part 121 side with a cable insertion part formed integrally with the insulating body 110 And a cable conductor (C / A-1) with a shielding cable (C / A) provided thereon is fitted into the cable connecting part (121).
delete The method according to claim 1,
The number of linear connecting members (200)
A connecting plug 220 having a cable connecting portion 221 to which a conductor C / A-1 of the shielded cable C / A is connected is formed with an insulating body 210 on the outside, Of the connecting plug 220 and inserted into the extension inlet 111 of the straight connecting member 100 of the straight connecting member 100 of the connecting member 220. The electric connecting member 220 is formed by projecting the front end of the connecting plug 220, A cable conductor C / A-1 having a cable insertion portion 212 and a shielded cable C / A formed thereon is integrally formed with the insulation body 210 to form a semi- And a connecting member for an air-lit equalization shielded cable.
The method according to claim 1 or 3,
The electric field relieving unit 130,
Shaped cone-shaped shielding bodies 131 and 231 for dispersing an electric field concentrated on the cable inside the cable insertion portions 112 and 212 to which the shielded cable C / A is connected, (210) of a high-pressure insulating rubber, and is molded in a cone shape of a stress-controlled cone injected integrally with the insulating bodies (110) and (210) of the high-pressure insulating rubber.
The method according to claim 1 or 3,
The bending connection member 300 may be formed,
A connection plug 312 having a connection pin portion 313 connected to the connection socket 120 of the linear connection member 100 of the arm and a connection socket 312 to which the connection plug 220 of the above- 320 of the connecting conductor 340 disposed transversely to the projecting bolts 315, 325 machined at the respective end portions of the connection plug 312 and the connection socket 320, An insertion protrusion 311 which is assembled in a U-shape by screw assembly by means of screws 341 and 342 and which is fitted to the extension inlet 111 of the straight connecting member 100 of the arm by molding of an insulating body 330 on the outside, And a stepped inlet 321 and a water assembling inlet 332 which are fitted to the insertion protrusions 211 of the water straight connecting member 200 And a connection part 320 of the connection part 320,
The female and male connecting portions 310 and 320 have a thickness expanded toward the front end to accommodate the outer circumferential surfaces of the connecting ends of the straight connecting member 100 and the male straight connecting member 200, A plurality of O-ring protrusions 335 protruding from the outer circumferential surface of the male threaded protrusion 331 are formed and an escape preventing protrusion 336 is integrally formed on the outer circumferential end of the female threaded protrusion 336 to form the female and male assembly inlets 331 and 332, ) And the straight connecting member (100) of the arm are tightened by a band or binding tape secured to the outside and secured to the outside, thereby achieving complete internal airtightness.

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