KR100647489B1 - Terminal unit for street lamp - Google Patents

Abstract

The present invention is a spontaneous and poor connection method for improving the wiring structure of a high-voltage wire cable introduced into a conventional street lamp by simply peeling off the sheath of the cable and twisting each other and then wound with insulating tape or improving the ballast, earth leakage breaker or terminal block within the street lamp. Even if it is installed, it is a complicated connection structure that does not get wet or waterproof in the column, and it is inconvenient for connection, disassembly, and maintenance. The terminal box is built in to solve the problem, and the cable is built in a single insulated, airtight box. The cable box is designed to provide a street lamp terminal box with improved cable connection structure. Can prevent and This will be organized on the stand and safety terminal boxes for street lights to reduce property damage because the cohesion and the dismantling easily so stand measurement and operation easy and shortened work time and also significantly reduce maintenance costs.

Street Light Terminal Box, Terminal Block, Earth Leakage Breaker, Ventilation, Packing, Tilt Arrangement, Transparent, Hook

Description

Terminal box for street lamps

1 is an exploded perspective view showing the overall configuration of a terminal box for a street lamp of the present invention

2 is a perspective view of a terminal box for a street lamp of the present invention;

Figure 3 is a cross-sectional configuration diagram of a terminal box for a street lamp according to an embodiment of the present invention

Figure 4 is an exemplary view schematically showing a state of mounting lamplight for the streetlight of the present invention

<Explanation of symbols for main parts of drawing>

1: street lamp 2: lamp

3: Lamp 4: Mounting panel

5: ballast

10: Terminal box 11: Transparent cover

12: groove 13: fastening

14: Ventilation 15: Tightening groove

16: Link 17: Body

18: cable entry 19: packing

20: Cable outlet 20a: Male thread

20b: Female thread 20c :: "O" ring

21: recess 22: fixing protrusion

23: link

30: Terminal block 31: Connection terminal

32: through-hole 40: earth leakage breaker

50: cable 51: cable sheath

52: Copper wire

The present invention relates to a terminal box for a street lamp, and more particularly, a wiring structure of a high-voltage wire cable introduced into a lamppost of a conventional street lamp is indiscriminate and poor connection method in which an insulation tape is simply peeled off and twisted with each other, and then insulated by insulating tape. Even if the ballast, earth leakage breaker or terminal block is installed in the street lamp, it is a complicated connection structure that does not have moisture or waterproof in the lamp column and is inconvenient to connect and dismantle. The terminal box for the street lamp which improves the cable connection and the opening and closing structure by the method which connects a cable firmly in one insulated airtight box with the built-in terminal block for neatly connecting the cable by eliminating the problem such as the Appearance by providing It is beautiful, prevents electric shock, and arranges and dismantles the wires so that it is easy to measure and operate, and it is easy to measure and operate, and the operation time is reduced and maintenance cost is greatly reduced, so that it is possible to reduce safety accidents and property damage. It is about a terminal box.

Street lamps are divided into street lights, park lights, security lights, and the like, and are formed in various shapes such as circular and square lamps, which are installed on the side of a road as shown in FIG. 4, and cables are introduced into the street lamps 1 and the light poles 2. The terminal box 10 and the ballast 5 are connected to each other to supply power to the lamp 3, and the lamp is turned on. In order to supply power to the street lamp, various devices such as an earth leakage breaker and a ballast are installed below the street lamp. Conventional wire connection in street light is a dizzying connection of high voltage cable for mutual connection such as input wire, load wire, other connection wires that apply power to street lamp in order to apply power such as regular / breaking lights. The volume is increased by simply winding both ends of the cable with insulation tape in the insulated state, and the connection part in the street lamp column. Is an indiscriminate and poor connection structure in which the exposed parts are exposed.The insulation and the fixed connection state of the connection are poor, and electric shock accidents, malfunctions and breakdowns frequently occur due to leakage of moisture and moisture such as condensation due to flooding or temperature difference. In addition, in order to measure the insulation state and to check for any abnormality, there are various problems such as the inconvenience of unwinding and winding the insulation tape, and there is an urgent need for improvement of the cable connection method and structure.

However, the conventional techniques for improving the above problems do not improve the connection method or the use structure of the cable, but are limited only to the addition of advanced functions such as an earth leakage detection function and a fault indication lamp function. As described above, despite the problem that the wiring structure of the cable is expensive compared to its effects such as malfunction of the device and frequent electric shock accidents due to poor exposure to moisture or moisture as it is not exposed to moisture or water. By simply adding a device, the original and structural technology development for the maintenance is very insufficient in the preventive aspect such as the worker's work efficiency such as the ease of operation and the construction and the maintenance of the equipment.

The present invention has been made in order to solve the above problems, the method of connecting both ends of the cable by using a tape or the like in the interconnection of the cable drawn out in the conventional street lamp, or the cable is exposed to moisture or moisture and not ventilated As a condensation phenomenon, it is a wire terminal for connecting cables in order to prevent electric leakage and electric shock factors of various factors such as electric leakage and electric shock due to corrosion of contact terminals. It is built in a ventilated sealed box and connected to improve the cable connection structure and problems in use, preventing various leakage factors such as inundation, condensation, and rainwater in advance. Easy to dismantle, measurement and operation So easy, so book shorter working hours and can also prevent leakage and malfunction of equipment and also significantly reduce maintenance costs, it aims to provide a junction box for street lights can reduce accidents and damage to property.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention for achieving the above object will be described in detail with reference to the accompanying drawings, and detailed descriptions of well-known components that may unnecessarily obscure the subject matter of the present invention will be omitted.

The present invention is installed on the side of the road and the cable is introduced into the street lamp (1) light pole (2) inside the terminal box 10, the earth leakage breaker (40), the ballast (5) is connected to each other to supply power to the lamp (3) In the terminal box for street lights 10 to be turned off,

Ventilation holes 14 are formed on both sides of the upper side, and a plurality of recesses 12 are formed symmetrically on the lower side thereof, and a plurality of sliding fastening pieces 13 are provided inside the bottom of the recesses 12 as fastening means. A plurality of fixing projections 22 for slidingly opening and closing the transparent cover 11 through which the projecting compartment is projected and the sliding fastening piece 13 to the inner upper part are provided, and the cable inlet 18 is arranged up and down diagonally. And to form a rectangular box-shaped opening and closing terminal box 10 with a body 17 is provided with a cable outlet 20,

The cable inlet 18 of the body of the terminal box 10 is a bolt-type fastening structure for fixing a plurality of functional cables 50 at a time by incorporating an elastic packing 19, and the cable outlet 20 is “O”. "Forming a screw-type fastening structure in which the male screw portion 20a and the female screw portion 20b are fastened through the ring 20c,

The terminal box 10 has a terminal block 30 in which a connection terminal 31 on a substrate connected to a cable 50 introduced through an inner sidewall through-hole 32 is partitioned by a diagonal line having an inclination angle of 15 degrees. It is a terminal box with a built-in connection with (40) to prevent the cable from being exposed to moisture or moisture, and is connected to the cable inlet and the outlet to prevent condensation and to easily open and close even in a narrow space.

In addition, the inside of the side wall through-hole 32 of the terminal block embedded in the terminal box is formed stepwise to bend the boundary surface of the copper wire 52 and the cable sheath 51 to the branch point to conceal the copper wire in the cable 50 The stripped copper wire is crimped and fastened to the connection terminal 31 of the terminal block 30 with a fastening bolt 31a.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Street light terminal box 10 of the present invention is a heat-resistant and flame-retardant synthetic resin material of the opening and closing separable structure as a transparent cover for opening and closing 11 and the body 17, the terminal block 30 and the earth leakage breaker 40 Are combined with each other so as to be provided with a space for mounting them to form a rectangular box-shaped terminal box 10 formed at an obtuse corner and fastened with screws to a mounting panel 4 in a street lamp lamp 2 of a cramped space. It is formed detachably.

Since the transparent cover 11 is formed of a material such as transparent plastic so that the inside can be seen through, the internal inspection such as the cable connection state can be performed from the outside without opening the terminal box 10, and the earth leakage breaker 40 is mounted. On the upper side of both sides of the transparent cover 11 at the position where the transparent cover 11 is provided with a ventilation hole 14 provided with an inclined plate inclined downward at a predetermined angle to prevent condensation, the inside is ventilated by the temperature difference between the inside and the outside where heat is generated. It prevents condensation occurring naturally, and the generated water is discharged to prevent the condensation from falling into the inside by the inclined downward slope plate so that the connection cable in the sealed terminal box 10 is not exposed to water or moisture.

In addition, a plurality of sliding fasteners 13 having end portions having a cramped end are provided inside the bottom of the recess 12 formed in a plurality of symmetrical shapes on the transparent cover 11, and correspondingly, the fixing protrusions 22 are formed on the body 17. ) Is provided, the fixing protrusion 22 is a '고정' type to form a fixed jaw blocked on one side so that the transparent cover 11 is vertically coupled to the edge of the body 17 and slidably supported in the left and right directions. In this state, the sliding fastening piece 13 of the transparent cover 11 stops when sliding down by the external force of the user so as to stop the stopper (stopper) function to fix the position firmly, thus such opening and closing structure It can be opened and closed by simply pushing it to the side and can be opened and closed easily compared to the conventional screw type coupling structure. Cover 11 is there to be an open part of the terminal box 10, only the operation of sliding to thereby possible to eliminate all the inconvenience in use of according to opening and reduces the risk of damage or loss of the fall.

And the terminal box for the street lamp 10 is an open type that is formed by combining the upper transparent cover 11 and the lower body 17, as described above, the cable inlet 18 for introducing the wire of the power input side in the lower portion as the cable passage In the upper part, the cable outlets 20 for drawing the wires on the load side are alternately arranged diagonally and coincide with the arrangement direction of the connection terminals 13 on the substrate partitioned by a 15 degree inclination angle diagonal of the terminal block 30 to be described later. By guiding the cable 50 smoothly, the terminal and the cable are more firmly connected.

The cable inlet 18 of the body 17 is coincidentally coupled with the fastening groove 15 of the upper transparent cover 11, the elastic material packing 19 is built in, and a plurality of functional cables 50 are bolted together at a time. Bolt fastening structure to fix with a bolt can be arranged to tie a plurality of cables at a time so that there is no flow, the cable outlet 20 is a male threaded portion (20a) via the "O" ring (20c) as a packing And by forming a screw-type fastening structure of the socket type to which the female screw portion (20b) is fastened, there is an effect of being waterproof and improve workability.

In addition, at one corner of the upper transparent cover 11 and the lower body 17 of the above-mentioned street light terminal box 10, connecting rings 16 and 23 are formed to connect the strings to each other so that they are transparent during installation, maintenance, and inspection. The cover 11 is prevented from coming off or falling off.

In addition, the terminal box 10 is connected to a plurality of power supply cables to the cable inlet 18 to the terminal block 30 to perform the function of turning on and off the line selection, the electric leakage generated in the electric wire cable for supplying current The earth leakage breaker 40 which senses and cuts off the current is connected together and is sequentially connected to the ballast 5 which supplies a stable current to the lamp 3 for street light outside the terminal box. The detailed description of the general electrical configuration such as the lights that are skipped one by one and the safety ground with the ground (GND) line is omitted.

The terminal block 30 is a cable bracket having a wire terminal function for placing a connection terminal for connecting a cable 50 for each function to be drawn in and out, and is firmly fastened and fixed to the inner space of the body 17 with bolts (not shown). The cable (50) drawn in through the through hole (32) of the side wall of the terminal block (30) The copper copper wire (52) from which the cable sheath (51) of the terminal is peeled off is easily connected to and disconnected from the connection terminal (31). Tighten by tightening), but the connection terminal 31 partitioned by function corresponding to the arrangement direction of the cable inlet 18 and the cable outlet 20 are arranged diagonally cross each other in a diagonal direction of 15 degrees inclination The inside of the terminal block through-hole 32 forms a step so that the cable sheath 51 and the copper wire 52 are bent at the boundary of the jaw so that the copper wire 52 peeled from the cable sheath 51 is not exposed to moisture or moisture. Letting k at the same time In engagement with a resilient material seal (19) of the inlet (18) to strengthen the connection of the wire cable 50.

In addition, the plurality of cables 50 fastened as described above are compressed and packed into the packing 19 of the elastic material at the cable inlet 18, and the packing 19 is firmly fastened by the bolts 18a to one case. As the cable is arranged and connected, the elastic force packing 19 is secured by a strong compressive force that elastically supports a plurality of cables 50 in a state in which the cable inlet 18 is closed, which may occur during line construction. It can prevent shock, vibration, cable pull, cable break and cable disconnection from terminal block.

Briefly explaining the assembly state of the present invention as described above, first, the cable 50 for each function to be introduced into the street lamp lantern 2 using a tool such as a screwdriver to the connection terminal 31 with a fastening bolt 31a firmly. The cable is fixed, but the stepped inside the side wall through-hole 32 of the terminal block 30 serves as a connection boundary line between the cable sheath 51 and the copper wire 52 of the cable terminal, and is bent at an angle of about 15 degrees to be extended again. The cable 50 is more firmly fixed by a line configuration that is pressed downward at the inlet port 18 in the diagonal direction from the top to the bottom, and the terminal block 30 is connected to the terminal block 10 like the earth leakage breaker 40. When the cable 50 is fixed to the lower body 17 in a connected state, the transparent cover 11 is vertically coupled to be supported by the edge of the body 17, and when supported and slid downwards, it is symmetrically to the inner surface of the body. many The cover and the body are assembled together by being tightly blocked by the fixing jaw of the formed fixing protrusion 22 and the position is fixed firmly, and the terminal box 10 is assembled to the mounting panel 4 by means of fastening means such as bolts. By attaching it to be able to be easily mounted in the narrow street lamplight (2).

According to the present invention, by connecting the cable in one terminal block as described above, the inconvenience of having to unwind and wind the insulation tape in order to measure the insulation state is eliminated, thereby reducing the work time, and the fixing force of the inlet wire is improved. It can prevent the cutting or disconnection of the cable, and the terminal box is an open / closed sealing structure to prevent the dew condensation by improving the ventilation hole and to improve the wiring structure of the cable terminal so that the copper wire peeled from the cable sheath is not exposed to moisture or moisture. By installing an integrated circuit breaker in the terminal box, it is possible to prevent electric shock accidents that may occur on the track (underground buried, street lamps, light lines, etc.). The cover is transparent and double-tight structure, so the cover is not easily separated from the body. Installation of the linkage prevents falling, so even in cramped columns Easy to check and shorten working time.

The present invention described above is not limited to the above-described embodiment as various substitutions and changes can be made by those skilled in the art without departing from the technical spirit of the present invention. .

In the present invention as described above, the cable connection in the street lamp, etc. inside the ventilated hermetic terminal box equipped with the terminal block and the earth leakage breaker integrally, so that no additional connection insulation is required, and the cable connection construction is simple and the leakage of moisture or moisture It can prevent electric shock accidents or malfunction or breakdown of equipment, and it is easy to connect and dismantle the cable, and it is easy to check and repair.Even if the lamp or ballast breaks down, the circuit breaker is automatically cut off to prevent no-load power loss. The energy saving effect is.

Claims (2)

It is installed on the side of the road and the cable is inserted inside the street lamp (1) lamp pole (2) inside the terminal box (10), earth leakage breaker (40), ballast (5) is connected to each other to supply power to the lamp (3) In the terminal box 10 for the street lamp, a plurality of ventilation holes 14 are formed on both sides of the upper side, and the groove 12 is symmetrically formed on the lower side thereof, and a plurality of sliding fastenings are formed inside the bottom of the groove 12 as a fastening means. It is provided with a piece 13 is provided with a plurality of fixing projections 22 for opening and closing the transparent cover 11 for opening and closing the front upper portion is projected and projected to the sliding guide 13 to guide the upper and lower and up and down In the diagonal direction to form a cable inlet 18 and the cable outlet 20 is provided with a body 17 provided with a rectangular enclosure shape opening and closing terminal box 10, The cable inlet 18 of the body of the terminal box 10 is a bolt-type fastening structure for fixing a plurality of functional cables 50 at a time by incorporating an elastic packing 19, and the cable outlet 20 is “O”. "Forming a screw-type fastening structure in which the male screw portion 20a and the female screw portion 20b are fastened through the ring 20c, The terminal box 10 has a terminal block 30 in which a connection terminal 31 on a substrate connected to a cable 50 introduced through an inner sidewall through-hole 32 is partitioned by a diagonal line having an inclination angle of 15 degrees. Terminal box for street light, characterized in that the structure is connected to the 40 According to claim 1, One side edges of the upper transparent cover 11 and the lower body 17, the connecting ring 16, 23 for connecting the strings are formed respectively, so that the transparent cover 11 during installation, maintenance, inspection Terminal box for street light, characterized in that prevents falling or falling)

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