KR200254299Y1 - The structure of a withdrawal box for a street light - Google Patents

Abstract

The present invention relates to a ballast with a ballast installed in the street lamp pole and the structure of the sealed drawer box for mounting ELB, in particular, in the street lamp pole that is always connected to the ballast and ELB side by inserting the internal / differential cable, the street lamp lid 21 If the lid to the front, the upper portion, the rear portion, the side portion, the lower portion is made of a sealed drawer box 2 of metallic material, while the lower portion 211 is opened by the opening and closing member 212, while the ELB (221) and In the state in which the ballast 222 is mounted on one substrate 22, the substrate 22 is pushed upward using the guide rail 213 formed inside the rear surface of the sealed drawer box 2 through the lower end 211. Its structural features make it possible to expose all the parts necessary for wiring during the circuit wiring work of the cable. Due to the simplicity of operating procedures, it can expect a takhwol effect on construction and maintenance, such as shortening working hours.

Description

The structure of a withdrawal box for a street light}

The present invention relates to the structure of the streetlight ballast and ELB (earth leakage breaker and electric shock protector), in particular, the ballast is installed inside the street lamp and the structure of the withdrawal box for mounting ELB, but the entire box is withdrawn to the front and rear The present invention relates to a street light ballast withdrawal box structure that facilitates circuit wiring and maintenance work by making it easy, and also makes a part of the front of the box made of transparent resin so that the ELB trip and connection status can be easily checked from the outside.

With the recent development of technology, various devices are becoming more functional and multifunctional, so the street lamps related to the present invention are no exception. For example, Republic of Korea Utility Model Registration No. 0213074 (power saving and electric shock protection ballast for street lamps), Republic of Korea Utility Model No. 1999-36923 (ballasts and display lamps installed in the street lamps).

If the conventional technology as described above is outlined as follows.

First, a power saving and electric shock protection ballast for a street light is a power saving and electric shock protection ballast for a street lamp connected to a street light, and detects the electric leakage when a short circuit occurs from at least one of a pair of wires supplying current to the street light. An earth leakage breaker; A switch control unit controlling a supply of current supplied from the street light in response to an output of the ground fault interrupting unit; A streetlight detector configured to detect a current flowing in one of the pair of wires and notify the earth leakage breaker; An ignition unit that receives a commercial AC voltage flowing through the pair of wires and generates an instantaneous high voltage to light the street light; And a stabilizer configured to receive the commercial AC voltage and supply a stable current to the lit street light.

Second, in the ballast installed in the upper and lower ends of the street lamp pole formed of a metal structure and mounted inside the lid of the street lamp pole, the ballast is inserted into the guide rails on both sides of the lid of the street lamp pole, and green on the lid of the ballast. A display lamp and a red display lamp are provided, respectively, so that the red display lamp is connected to both ends of the positive pole and the -point of the condenser so that the light is turned off and on.

Korean Utility Model Registration No. 0213074, the first of the existing technologies configured as described above, adds a ground fault detection function to the ballast itself, and automatically switches off when a short circuit occurs in the wire, and finally cuts off the current supplied to the street lamp. While there is an advantage of preventing power consumption and preventing damage caused by a short circuit, the second Korean Utility Model Publication No. 1999-36923 installs a ballast on the back of Jeonju's lid, but attaches it integrally, and displays the indicator lamp on the lid. It can be seen that there is an advantage that can be quickly confirmed the presence of streetlights by installing.

These conventional technologies have been developed with the emphasis on adding some functions such as the earth leakage detection function to the ballast and checking the abnormality status with the display lamp. It can be seen that the development of technology for improving working conditions in the column is insufficient. In other words, in order to check the frequent ELB trips and trips due to condensation due to the temperature difference between winter and winter, as well as inconvenient of constant / differential cable and ballast, ELB wiring work and maintenance in narrow street streets. The development of technology to improve the working conditions and maintenance in the lamp, etc. was very lacking.

The present invention was created in consideration of the above-mentioned various matters, and its purpose is to manufacture a sealed draw box for mounting a ballast and an ELB installed inside a street lamp, but the draw box is made of a structure that can be easily pulled out to the front and rear sides. It is to provide a streetlight ballast withdrawal box that can expose the parts necessary for wiring when the circuit wiring work of the constant / differential cable is avoided.

In addition, another object of the present invention is to provide a streetlight ballast withdrawal box structure to avoid condensation due to the difference in outdoor temperature by forming a ventilation grille for the heat circulation in the column to the front of the takeout box.

Still another object of the present invention is to provide a streetlight ballast withdrawal box structure that allows a part of the front of the takeout box to be made of transparent resin so that the ELB trip and connection state can be easily checked from the outside without opening and closing a lid.

1 is an exploded perspective view of a drawer box for a street lamp ballast according to the present invention;

2 is a perspective view of the drawer box of FIG. 1;

3 is an exemplary drawing of the extraction box coupling of FIG.

4 is a cross-sectional view of the withdrawal box,

5 is an exemplary view for explaining a drawout box mounting process;

Figure 6 is another embodiment of the present invention withdrawal box.

<Description of the code | symbol about the principal part of drawing>

1: street lamp, 2: withdrawal box,

21: lid, 22: substrate,

210: window, 221: ELB (electric shock protector),

222: ballast.

In order to achieve the above object, the present invention is a street lamp that is always connected to the ballast and the ELB side by the continuous / ignition cable is inserted into the inside, the lid of the street lamp for the front of the lid, the upper part, the rear part, the side, the lower part, the sealed type of metallic material The lower end is opened by the opening / closing member to be opened, while the ELB and the stabilizer are mounted on the entire substrate, and the upper side of the substrate is formed by using a guide rail formed inside the rear side of the sealed drawer box through the lower end. It is characterized in that it is pushed into the mold to be fixed.

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

1 is an exploded perspective view of a drawer box for a street lamp ballast according to the present invention, FIG. 2 is an external perspective view of the drawer box of FIG. 1, FIG. 3 is an exemplary view of the drawer box coupling of FIG. 1, FIG. 4 is a cross-sectional view of the drawer box, and FIG. Exemplary drawing for explaining a drawout box mounting process, Figure 6 is another embodiment of the present invention withdrawal box.

Generally, street light poles (round, square, hexagonal, octagonal) vary according to their shape and shape, and their inner widths vary depending on the length of each column, and the position of ballast attachment is also known by KS standards. In addition, there is recent controversy regarding the location of ballast stabilization in flooded areas due to heavy rain.

The present invention has been made in view of these various matters, and as shown in Figs. 1 and 2, a hermetic draw-out box (2) structure having the street lamp lid (21) as a front and a substrate inserted into the sealed draw-out box ( 22). Here, the structure of the hermetic draw-out box (2) in consideration of the width and height of the ELB (electric shock protector) 221, stabilizer 222, terminal block (can be installed as necessary: not shown) to be described later As well as determining the size, the upper end portion 2a of the lid 21, the rear portion 2c, the both sides 2b, and the lower portion 2d may be made of a metallic material having good thermal conductivity.

In addition, a guide rail 213 on which the guide piece 22a of the substrate 22 to be described later is formed is formed on a part of the inner side of the back portion 2c, while the lower end portion 2d is opened by a hinged opening / closing member 212. Opening or closing in the downward direction enables insertion of the substrate 22.

The substrate 22 is provided with an ELB 221, a ballast 222, and a terminal block (not shown). The constant / differential circuit wiring and grounding are common tasks, and thus detailed descriptions thereof will be avoided. It is preferable that a heat sink for discharging heat generated from a ballast or a connection outlet for wiring is standardized. When the substrate 22 is accommodated in the sealed drawer box 2 and fastened to a street lamp by bolts, that is, a guide formed on the rear surface of the sealed drawer box 2 in a state where each component is mounted on the board 22. It can be seen that the guide piece 2a of the substrate 2 is joined to the rail 213 as shown in FIG. 4.

In addition, as shown in FIG. 3, a part of the street lamp column cap 21 may be manufactured as a nude window 210 made of a transparent resin material so that the substrate installed in the column may be confirmed from the outside, as shown in FIG. 6. It is preferable in terms of its structure to install a ventilation grille 215 for heat circulation in the column to the front side of the street lamp lid 21 to suppress condensation that may occur in the closed draw box (2). Here, the installation of the ballast mounting height of the substrate 22 mounted on the sealed take-out box 2 to 1M or more is also a method to ensure the electric shock protection by immersion.

The above is only an embodiment of the present invention, and within the scope of the present invention, for example, when two ballasts are provided, the size of a substrate corresponding thereto, an electronic ballast, a streetlight electric shock protector, or a drawing box (2 It is possible to change and modify as much as the handle 214 for mounting.

The present invention configured as described above is to combine the ballast 2212, ELB (electric shock protector) 221, the terminal block (not shown) with a bolt or the like, but the wire connection inlet (not shown) or an exposed form by connecting the wires to each other Connect the cable introduced into the column in the state made of a single substrate 22 by each terminal block (not shown) or other method, the upper back portion 2a, the rear portion 2c, both sides of the lid 21 2b) and the lower end 2d are coupled to the sealed draw box 2 made of a rectangular metallic material, which is opened using the opening / closing member 212 of the lower end 2d, but the guide piece of the substrate 22 22a) is pushed to the top in the upper direction in a state spanning the guide rail 213 formed in the sealed draw box 2, and then closed by closing the lower end 2d. With the sealed draw box (2) inserted, This process is illustrated in FIG.

On the other hand, if maintenance is required and replacement of parts such as internal ballast replacement and ELB replacement is necessary, the reverse order of the above-described combining process is natural.

As described above, the present invention is manufactured in a structure in which the entire sealed drawer box is easily pulled out to the front and rear surfaces for the ballast and the ELB mounting, thereby exposing the entire parts necessary for the connection during the circuit connection work of the regular / lighting cable. As the work can be avoided in the state such as the width, the convenience of the wiring work, the labor savings, and the ease of maintenance are further improved.

In addition, by installing a ventilation grille on the lid, it prevents condensation caused by outdoor temperature difference during winter due to the natural discharge of heat generated from the ballast in the column, and by making a part of the front of the take-out box out of transparent resin without opening and closing the lid. It has the advantage of easy checking of trip and connection status.

Claims (5)

In street lamps where constant / differential cables are drawn inside and interconnected with ballasts and ELBs, the top, rear, side, and bottom of the lids for the street lamps are fronted with a sealed draw box (2) made of metallic material. While manufacturing the lower end 211 so that the inside is opened by the opening and closing member 212, while the ELB 221 and the ballast 222 is attached to the entire substrate 22 in the sealed state through the lower end 211 Street light ballast withdrawal box structure, characterized in that by using the guide rail 213 formed on the inside of the back of the take-out box 2 to push the substrate 22 upward. The streetlight ballast withdrawal box structure according to claim 1, wherein a portion of the streetlight main lid (21) is made of a nude window (210) made of a transparent resin material. The streetlight ballast withdrawal box structure according to claim 1, wherein a ventilation grille (215) for heat circulation in the column is installed at one side of the front surface of the streetlight main lid (21). 2. The streetlight ballast withdrawal box structure according to claim 1, wherein a handle (214) for mounting the withdrawal box is formed at one side of the front cover of the streetlight main (21). 2. The streetlight ballast take-out box structure according to claim 1, wherein the ballast mounting height of the substrate (22) mounted on the sealed take-out box (2) is installed at 1M or more.