KR102584362B1 - waterproof type earth leakage breaker for blended street lamp - Google Patents

Abstract

The posted information is intended to prevent electric leakage or electric shock accidents due to rainwater infiltrating the earth leakage circuit breaker installed in the control box (distribution board) of the streetlight pole that controls the power supply to the lamps of streetlights installed on the roadside, etc. due to floods or heavy rain. , pertaining to waterproof earth leakage circuit breakers for street lights,
A waterproof earth leakage circuit breaker for streetlights according to an embodiment of the present specification is
It is applied to a waterproof earth leakage circuit breaker for streetlights, which includes a base with an empty interior, a cover mounted on the base, an operation button is formed on the top, and an empty interior, and is installed in a distribution board that controls the power supply to the lamps of streetlights. ,
A push-type rod for a handle that is raised and lowered in the vertical direction, and a switching device for turning the power on by bringing the mover into contact with the stator by a pressing member coupled to the push-type rod;
An earth leakage trip to turn off the power by moving the plunger due to the magnetic force formed in the first electromagnet due to an electric current and raising the push-type rod and the pressing member by the elastic restoring force of the mover to separate the mover from the stator and turn off the power. Device;
A first position coupled to the middle position of the push-type rod and connected to the rocker of the first electromagnet plunger, and moved by pressure of the plunger of the first electromagnet in the energization mode to bring the mover into contact with the stator, and a trip operation a bracket for a connector that slides the movable unit to a second position away from the stator;
An instantaneous trip device is formed symmetrically to the earth leakage trip device and presses the second partition wall of the connector bracket by moving the plunger by magnetic force, wherein the magnetic force formed in the instantaneous trip device due to the occurrence of a short circuit accident is provided. By moving the plunger and the elastic restoring force of the mover, the second bulkhead is pressed by the movement of the plunger of the instantaneous trip device to separate the mover from the stator and turn off the power, thereby attaching the bracket for the connector to the second bulkhead. It is designed so that it can be moved to 2 positions;
It is coupled to a through groove formed on one side of the contact surface of the base and the cover, and has a waterproof cap to prevent rainwater from penetrating into the earth leakage circuit breaker from the outside due to input and output lines passing through the through groove. Provides a waterproof earth leakage circuit breaker for street lights.

Description

Waterproof type earth leakage breaker for street lights {waterproof type earth leakage breaker for blended street lamp}

This specification relates to an earth leakage circuit breaker. To be more specific, rainwater due to floods or heavy rain penetrates into the earth leakage circuit breaker installed in the control box (distribution board) of a street light pole that controls the power supply to the lamps of street lights installed on the roadside. It relates to a waterproof earth leakage circuit breaker for street lights to prevent electric leakage or electric shock accidents.

Unless otherwise indicated herein, the material described in this section is not prior art to the claims of this application, and is not admitted to be prior art by inclusion in this section.

A general earth leakage circuit breaker is a switch installed in a distribution panel that automatically cuts off the current when leakage current such as an earth leakage occurs. In other words, earth leakage circuit breakers are used to protect load-side equipment and people by detecting abnormal currents in the event of leakage current or ground fault, electric shock to the human body, or short circuit current and quickly blocking the circuit.

Street lights and security lights are installed in large numbers on roadsides, alleys, and gardens to ensure the safety of pedestrians at night. They are turned on in the dark by the non-contact switching action of a photoelectric flasher, and at dawn, a photoelectric flasher is used. It is configured to turn off the lights.

In the distribution board at the inner bottom of the streetlight support, a power cable is brought in from underground to ensure a stable supply of power to the streetlight lamps, and a connection jack, ballast, and earth leakage circuit breaker are interconnected to control the power supply to the streetlight lamps. do.

Street lights only prioritize corrosion and durability, but have the problem of being defenseless from rainwater seeping through the mounting panel during floods or heavy rain.

Therefore, when the road side is temporarily flooded due to a flood or torrential rain and the streetlights are submerged, the stabilizer, connection terminal, earth leakage circuit breaker, and connection terminal of the power cable located at the bottom of the streetlight support are submerged in rainwater, causing the surrounding electric potential to rise. Electric shock may be given to pedestrians passing by, resulting in a safety accident in which pedestrians may be killed or injured by electric shock.

In addition, after the rainwater drains, the electrical components of the distribution board and earth leakage circuit breaker that have been flooded by rainwater must be replaced or repaired, which may result in economic loss due to flooding.

A street light circuit breaker for preventing flooding is registered in Korea Patent Publication No. 10-0819148 (April 3, 2008).

The embodiment of the present specification prevents rainwater that has risen due to flooding, heavy rain, etc. from infiltrating the earth leakage circuit breaker installed in the distribution panel of the streetlight pole, thereby protecting pedestrians passing nearby from electric shock due to electric leakage. It is related to waterproof earth leakage circuit breaker for street lights.

Embodiments of the present specification relate to a waterproof earth leakage circuit breaker for street lights, which reduces cost by simplifying the structure of the earth leakage circuit breaker that cuts off power due to electric leakage or short circuit.

According to an embodiment of the present specification to achieve the above and other purposes of the present specification,

It is applied to a waterproof earth leakage circuit breaker for streetlights, which includes a base with an empty interior, a cover mounted on the base, an operation button is formed on the top, and an empty interior, and is installed in a distribution board that controls the power supply to the lamps of streetlights. ,

A push-type rod for a handle that is raised and lowered in the vertical direction, and a switching device for turning the power on by bringing the mover into contact with the stator by a pressing member coupled to the push-type rod;

An earth leakage trip device for moving the plunger by a magnetic force formed due to an electric current and raising the push-type rod and the pressing member by the elastic restoring force of the mover to separate the mover from the stator and turn off the power;

It is coupled to the middle position of the push-type rod and connected to the rocker of the plunger of the earth leakage trip device, and is moved by pressing the plunger in the energization mode to bring the mover into contact with the stator, and the movable part during the trip operation. A bracket for a connector that slides the ruler to a second position away from the stator;

An instantaneous trip device is formed symmetrically to the earth leakage trip device and presses the second partition wall of the connector bracket by moving the plunger by magnetic force, wherein the magnetic force formed in the instantaneous trip device due to the occurrence of a short circuit accident is provided. By moving the plunger and the elastic restoring force of the mover, the second bulkhead is pressed by the movement of the plunger of the instantaneous trip device to separate the mover from the stator and turn off the power, thereby attaching the bracket for the connector to the second bulkhead. It is designed so that it can be moved to 2 positions;

It is coupled to a through groove formed on one side of the contact surface of the base and the cover, and has a waterproof cap to prevent rainwater from penetrating into the earth leakage circuit breaker from the outside due to input and output lines passing through the through groove. Provides a waterproof earth leakage circuit breaker for street lights.

The waterproof earth leakage circuit breaker for streetlights according to an embodiment of the present specification having the above-described configuration has the following advantages.

By blocking rainwater that has risen due to heavy rain, etc. from penetrating into the earth leakage circuit breaker installed on the distribution panel of the streetlight support, it prevents the distribution board and earth leakage circuit breaker from malfunctioning due to electric leakage, and protects pedestrians passing by from electric shock. Because it is protected, it has reliability and practicality.

In addition, by simplifying the overall mechanism configuration of the earth leakage circuit breaker that cuts off power due to an electric leak or short circuit, the cost can be reduced, making it possible to expand the supply of low-cost earth leakage circuit breakers to users.

1 is a perspective view of a waterproof earth leakage circuit breaker for streetlights according to a preferred embodiment of the present specification;
Figure 2 is an exploded perspective view of the base and cover in the earth leakage circuit breaker shown in Figure 1;
Figure 3 is a cross-sectional view showing the arrangement of the first and second electromagnets in the earth leakage circuit breaker shown in Figure 1;
Figure 4 is a cross-sectional view showing the contact between the mover and the stator in the earth leakage circuit breaker shown in Figure 1;
FIG. 5 is an enlarged view of the mounting portion of the connector bracket that is raised by the magnetic force of the electromagnet due to an electric current or short circuit and is coupled to the push-type rod for the handle to cut off the power in the earth leakage circuit breaker shown in FIG. 1;
FIG. 6 is a diagram showing a state in which the push-type rod for the handle maintains the initial position when the movable element is in contact with the stator (power ON state) in the earth leakage circuit breaker shown in FIG. 1;
FIG. 7 is a diagram showing when the push-type rod for the handle is raised in the earth leakage circuit breaker shown in FIG. 1 when the mover is separated from the stator (power OFF state).

Hereinafter, a waterproof earth leakage circuit breaker for street lights according to a preferred embodiment of the present specification will be described in detail with reference to the accompanying drawings.

Referring to Figures 1 to 7, a waterproof earth leakage circuit breaker for streetlights according to an embodiment of the present specification.

It includes a base 10 with an empty inside, a cover 11 with an empty inside, which is mounted on the base 10 and has operation buttons 31, 32, 32a formed on the upper surface, and supplies power to the lamp of the street light. It is applied to a waterproof earth leakage circuit breaker (A) for streetlights installed in a controlling distribution board (not shown).

The mover (16) is moved by a push type rod (14) for a handle that is raised and lowered in the vertical direction, and a pressing member (15) coupled to the push type rod (14) by lowering the push type rod (14). A switching device (19) for turning on the power by contacting the (moving contact point) with the stator (17) (fixed contact point) (at this time, the plunger is activated by the elastic restoring force of the earth leakage trip spring (18e) of the earth leakage trip device (20). By pushing (18b) to move the connector bracket 22 horizontally, the push-type rod 14 for the handle is maintained in a lowered state to maintain the mutual contact state of the mover 16 and the stator 17 ( maintained in a closed state);

When an electric leak, etc. occurs in the power supply line and current flows through the earth leakage trip coil (18d) due to the trip signal of the earth leakage circuit, the magnetic force formed in the earth leakage trip device 20 (earth leakage trip solenoid (18d)) By the movement of the plunger (18b) and the elastic restoring force of the mover (16), the push-type rod (14) and the pressing member (15) are raised to connect the mover (16) (movable contact point) to the stator (17) (fixed contact point). ) to turn off the power (i.e., the plunger 18b is pulled away from the push-type rod 14 by the magnetic force formed in the earth leakage trip solenoid 18d) to turn off the power. ) As the connector bracket 22 is moved horizontally (at this time, the earth leakage trip spring 18e of the earth leakage trip device 20 receives a compressive force), the push-type rod 14 for the handle is raised to move the movable member 16. is spaced apart from the stator 17 (maintained in an open state);

It is coupled to the middle position of the push-type rod 14 and connected to the rocker 18a of the plunger 18b of the earth leakage trip device 20, and is moved by pressing the plunger 18b of the earth leakage trip device 20 in the energization mode. A connector bracket 22 that slides to a first position for contacting the mover 16 with the stator 17 and a second position that separates the mover 16 from the stator 17 during a trip operation;

An instantaneous trip device (30) is formed symmetrically to the earth leakage trip device (20) and pressurizes the second partition wall (29) of the connector bracket (22) by moving the plunger (30a) by magnetic force. Due to the inflow of a large current due to a short circuit in the supply line, the movement of the plunger (30a) by the magnetic force formed in the instantaneous tripping device (30) and the elastic restoring force of the mover (16) move the mover (16) to the stator (17). By moving the plunger (30a) of the instantaneous tripping device (30) to turn off the power, the second bulkhead (29) is pressed toward the push-type rod (14) to separate the connector bracket (22) from the second partition (29). It is designed so that it can be moved to a position (at this time, the instantaneous trip spring 30c of the instantaneous trip device 30 is subjected to a compressive force);

As the plunger 30a is moved to the left in the drawing of FIG. 3 by the magnetic force formed in the instantaneous trip solenoid 30b of the instantaneous trip device 30 described above, the connector bracket ( 22) is pressed toward the push-type rod 14, so that the pressing force pressing the connector bracket 22 can be increased.

It is coupled to the through groove 40 formed on one side of the contact surface of the base 10 and the cover 11, and rainwater flows from the outside due to the input and output lines 41 passing through the through groove 40. The earth leakage circuit breaker (A) It is characterized by being provided with a sealing waterproof cap 42 (as an example, a silicone material may be used) to prevent penetration into the interior.

According to a more preferred embodiment, as shown in FIGS. 5, 6, and 7, the connector bracket 22 described above is

A bottom plate (23) formed with a coupling hole (23a) through which the push-type rod for handle (14) penetrates;

A wing-shaped protruding piece 26 protruding from the bottom plate 23 so as to be slidably coupled to the rail groove 24 formed symmetrically on one side of the mounting portion 25 of the earth leakage trip device 20;

A first partition 28 in which a groove 27 is formed into which the connecting jaw 18c of the rocker 18a is coupled;

It is characterized by having a second partition wall (29) formed opposite to the first partition wall (28).

As shown in Figure 2, a seating groove 43 formed around the upper surface of the base 10 described above;

A protruding protrusion 44 is formed on the bottom surface of the cover 11 to correspond to the seating groove 43,

To prevent rainwater from penetrating into the earth leakage circuit breaker (A) through the gap between the contact surfaces of the base 10 and the cover 11, the contact surfaces of the uneven seating groove 43 and the protruding protrusion 44 are melted (i.e., For example, it can be fixed by ultrasonic fusion).

For this reason, after unevenly combining the seating groove 43 formed on the upper surface of the base 10 and the protruding protrusion 44 correspondingly formed on the bottom surface of the cover 11, the seating groove 43 and the protruding protrusion 44 are formed. ) of the mutually uneven joints are heat-sealed by ultrasonic waves, etc., so that even if the lower end of the streetlight support is submerged due to a flood or heavy rain, the overflowing rainwater passes through the gap in the contact surface of the seating groove 43 and the protruding ledge 44. It is possible to prevent penetration into the interior of the earth leakage circuit breaker (A).

At this time, the technical content of sealing the mutually concave-convex joint of the above-described seating groove 43 and the protruding jaw 44 by heat-sealing it using ultrasonic waves or the like is commonly used in the technical field to which this specification pertains, and thus its configuration and working method. Detailed description is omitted.

In the drawing, reference numeral 18 is a PCB, 31 is a test button that protrudes from one side of the upper surface of the cover 11 and is used to test the earth leakage operation of the earth leakage circuit breaker (A), 32 is a power switch, and 32a is a power switch. This is a trip switch for separating the mover (16) from the stator (17) when pressurized.

Hereinafter, a waterproof earth leakage circuit breaker for streetlights according to an embodiment of the present specification will be described with reference to the accompanying drawings.

As shown in Figures 1 to 7, the power supplied to the streetlight lamp can be controlled to turn on and off as the push-type rod for the handle 14 is raised and lowered.

That is, turning the power on and off is performed by the mover 16 being in contact with or spaced apart from the stator 17. When the movable contact point of the mover 16 touches the fixed contact point of the stator 17, the power supply side and the load side are connected to conduct electricity (referring to the so-called closed state), so the power supply is supplied to the load side. It becomes on.

The switching device 19 described above brings the mover 16 into contact with the stator 17 or separates it from the stator 17 by raising and lowering the pressing member 15 coupled to the push-type rod 14 for a handle that is pressed in the vertical direction. do.

That is, when an electric leak occurs in the power supply line, the plunger 18b of the earth leakage trip device 20 is moved to the left side in the drawing of FIG. 3 by the magnetic force formed in the earth leakage trip solenoid 18d of the earth leakage trip device 20. As the connector bracket 22 is moved to the left, the handle push-type rod 14 can be raised to separate the movable contact point of the mover 16 from the fixed contact point of the stator 17. there is.

Meanwhile, when the push-type rod 14 for the handle described above is lowered, the mover 16 pressed by the pressing member 15 coupled to the push-type rod 14 is lowered and comes into contact with the stator 17.

At this time, the plunger 18b is pushed toward the push-type rod 14 by the elastic restoring force of the earth leakage trip spring 18e of the above-described earth leakage trip device 20, and the connector bracket 22 is moved horizontally (see Figure 2). (moved to the right in the drawing of 3), the locking protrusion 14a of the push-type rod 14 for the handle is caught in the coupling hole 23a formed in the bottom plate 23 of the connector bracket 22. (That is, the vertical movement of the handle push-type rod 14 is restricted).

As a result, it is possible to maintain the lowered state of the handle push-type rod 14 and maintain the mutual contact state (power ON state) of the mover 16 and the stator 17.

When lightning or a short circuit occurs in the above-mentioned street light power supply line, the plunger 18b is pulled to the left in the drawing of FIG. 3 by the magnetic force formed in the ground fault trip device 20 (ground fault trip solenoid 18d). As the connector bracket 22 connected to the rocker 18a of the plunger 18b is pulled in the left direction (at this time, the leakage trip spring 18e receives a compressive force), the connector bracket 22 is pulled. The locking protrusion (14a) of the push-type rod for handle (14) is separated from the coupling hole (23a) formed in the bottom plate (23) of (22).

As a result, the power can be turned off by raising the handle push-type rod 14 by the set distance due to the elastic restoring force of the movable movable 16 and separating the movable movable 16 from the stator 17. There will be.

Meanwhile, the plungers 18b and 30a are driven by the magnetic force formed in the earth leakage trip solenoid 18d and the instantaneous trip solenoid 30b of the above-described earth leakage trip device 20 and the instantaneous trip device 30, and the earth leakage trip spring (18e) and the technical content of moving the plungers (18b, 30a) to the initial position by the elastic restoring force of the instantaneous trip spring (30c) are commonly used in the technical field to which this specification pertains, so a detailed description of their configuration is provided. Omit it.

As described above, according to the waterproof earth leakage circuit breaker for streetlights according to the embodiment of the present specification,

As the manager manually lowers the handle push-type rod 14 in the vertical direction, the movable contact point of the mover 16 is brought into contact with the fixed contact point of the stator 17, thereby turning on the power supplied to the street lamp. ), making it possible to simplify the overall mechanism configuration of the earth leakage circuit breaker (A).

In addition, when the bottom of the streetlight pole is flooded due to a flood or heavy rain, rainwater flows into the earth leakage breaker (A) through the gap in the contact surface between the base (10) and the cover (11) of the earth leakage circuit breaker (A) installed in the distribution panel of the streetlight pole. ) By blocking penetration inside, it is possible to prevent electric shocks due to short circuits.

Here, although the above-described specification has been described with reference to preferred embodiments, those skilled in the art may modify and modify the present specification in various ways without departing from the spirit and scope of the specification as set forth in the following claims. You will understand that you can change it.

10; Base
11; cover
14; Push type rod for handle
15; Pressure member
16; mover
17; stator
18; PCB
18a; locker
18b; plunger
18c; connecting jaw
19; switching device
20; Earth leakage trip device
22; Bracket for connector
23; bottom plate
23a; jointer
24; rail home
25; Mounting part
26; wing-shaped protrusion
27; Yohome
28; 1st bulkhead
29; 2nd bulkhead
30; Instantaneous tripping device
30a; plunger
31; test button
32; power switch
40; Through groove
41; input/output line
42; Waterproof cap for sealing
A; earth leakage circuit breaker

Claims (3)

It is applied to a waterproof earth leakage circuit breaker for streetlights, which includes a base with an empty interior, a cover mounted on the base, an operation button is formed on the top, and an empty interior, and is installed in a distribution board that controls the power supply to the lamps of streetlights. ,
A push-type rod for a handle that is raised and lowered in the vertical direction, and a switching device for turning the power on by bringing the mover into contact with the stator by a pressing member coupled to the push-type rod;
An earth leakage trip device for separating the mover from the stator and turning off the power by moving the plunger by the magnetic force formed due to an electric leak and raising the push-type rod and the pressing member by the elastic restoring force of the mover;
It is coupled to the middle position of the push-type rod and connected to the rocker of the plunger of the earth leakage trip device, and is moved by pressing the plunger in the energization mode to bring the mover into contact with the stator, and the movable part during the trip operation. A bracket for a connector that slides the ruler to a second position away from the stator;
An instantaneous trip device is formed symmetrically to the earth leakage trip device and presses the second partition wall of the connector bracket by moving the plunger by magnetic force, wherein the magnetic force formed in the instantaneous trip device due to the occurrence of a short circuit accident is provided. By pressing the second partition wall by moving the plunger of the instantaneous trip device to separate the mover from the stator and turn off the power by the movement of the plunger and the elastic restoring force of the mover, the bracket for the connector is moved to the second partition. It is designed so that it can be moved to 2 positions;
It is coupled to a through groove formed on one side of the contact surface of the base and the cover, and has a sealing waterproof cap to prevent rainwater from penetrating into the earth leakage breaker from the outside due to the input and output lines passing through the through groove. In the waterproof earth leakage circuit breaker for street lights:
The bracket for the connector is
a bottom plate in which a coupling hole through which the push-type rod for the handle passes is formed;
a wing-shaped protruding piece protruding from the bottom plate so as to be slidably coupled to a rail groove formed symmetrically on one side of the mounting portion of the earth leakage trip device;
a first partition in which a groove is formed into which a connecting jaw of the rocker of the earth leakage trip device is coupled;
A waterproof earth leakage circuit breaker for a street light, characterized in that it has a second partition formed opposite to the first partition. delete According to paragraph 1,
A seating groove formed around the upper surface of the base;
It is further provided with a protruding protrusion formed on the bottom surface of the cover to correspond to the seating groove,
A waterproof earth leakage circuit breaker for street lights, characterized in that the contact surfaces of the unevenly coupled seating groove and the protruding protrusion are melted and fixed to prevent rainwater from penetrating into the interior of the earth leakage circuit breaker through a gap in the contact surface between the base and the cover.

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