KR0146616B1 - Leakage current circuit breaker - Google Patents

Abstract

The present invention relates to an automatic disaster detection control device and a circuit generated during lightning, short circuit, or excessive electrical use. In the related art, a circuit breaker and a toad house are separated from each other, making it difficult to replace fuses, and an abnormality occurs in the connection line between the circuit breaker and the toad house. There are many problems, such as a circuit breaker does not work properly by the use of the fuse, the present invention has a tripping lever 3 acting as a circuit breaker in one control box (1) (26) and the fuse exchange part serving as a toad house Only the fuse 11 rated to be connected to the electronic circuit board 7 and the fuse case 12 and the fuse replacement handle 12, which are the fuse exchanger 25, can be assembled and detached from each other. It is an automatic electrical disaster detection control device and a circuit that makes it possible to cut off exactly in the event of a disaster and make it easy to replace the fuse.

Description

Electric Disaster Automatic Detection Control and Circuit

1 is a perspective view of the automatic detection control apparatus according to the present invention.

Figure 2 is an excerpt perspective view showing the main part in the automatic detection control device according to the present invention.

Figure 3 is an exploded perspective view showing a partially enlarged fuse in the automatic sensing control device according to the present invention.

4 is a cross-sectional view showing a combined state of FIG.

Figure 5 is an enlarged cross-sectional view showing a state in which the trip drive switch is installed in the fuse in the automatic sensing control device according to the present invention.

6 is an explanatory diagram of the operation relationship of FIG.

(a) is a state diagram before operation,

(b) is a state diagram after operation.

7 is an automatic electrical accident control circuit according to the present invention.

* Explanation of symbols for main parts of the drawings

1: Control Box 2: Front Cover

2-1: rear cover 3: trip lever

4, 4-1: Input terminal connector 5, 5-1: Output terminal connector

6: fastening hole 6-1: fastening screw

7: circuit board 8: relay

9: sensing coil 10: control switch

11, 11-1: Handle 12: fuse case

13: fuse support cap 13-1: binding piece

14: bimetal switch 15, 15-1: light emitting diode (LED)

16, 16-1: fuse 17, 17-1: trip drive switch

18, 18-1: spring 19: set screw

20, 20-1: fixing groove 21, 21-1: input wire entry hole

22, 22-1: Output Rookie Hole 23: Contact

24: charging room 24-1: insertion groove

25: fuse replacement part 26: trip lever drive part

IC: Oscillation IC

The present invention relates to an automatic electrical disaster detection control apparatus and circuit for automatically controlling the power introduced into the room from the columnar transformer.

In more detail, it is possible to perform the function of the existing earth leakage breaker and the function of the safety switch (cut out knife switch) at the same time. It is to be cut off automatically when the over current flows and to inform the outside when the fuse is disconnected due to disconnection or short circuit, and to use only the fuse of the rated capacity and to replace easily. The present invention relates to an automatic sensing control device and a circuit thereof in which a power is automatically cut off by heat when a fuse is not disconnected and an excessive current flows continuously due to heat.

In the related art, an earth leakage breaker and a cut-out nife switch were used in order.

In order to install the earth leakage breaker and the safety breaker in this way, it is not easy to install them and it is necessary to connect them with wires. If it does not operate normally, even if the wire overheats, it can not be replaced effectively, which causes another danger.

In addition, it was not possible to check the status of the blown fuse from the outside, so it was not easy to check the power disconnection status, and it was difficult to replace the fuse because it was difficult to replace the fuse. If not replaced, a safety accident such as an electric shock occurred. In particular, in the use of fuses, wire copper wires could be used in place of fuses of rated capacity, so when a short circuit occurred, the power supply could not be shut off, resulting in a fire hazard.

It is an object of the present invention to provide an automatic electrical disaster detection control apparatus and a circuit capable of eliminating the problems and closures described above.

An object of the present invention is to provide an automatic electrical disaster detection control apparatus and a circuit which is capable of simultaneously performing a ground fault interrupting function and a safety switching function by integrating a ground fault breaker and a safety switch.

Another object of the present invention is to provide an apparatus and a circuit in which a trip lever is automatically and quickly operated by controlling an input of a power supply by adding an electronic sensing function to detect lightning and a short circuit.

Still another object of the present invention is to rotate the fuse support handle forward and backward when replacing the fuse so that the trip drive switch is turned on and off by a detachable connection piece of the fuse support cap, and in the on state, the trip lever is automatically operated to supply power. The present invention provides an automatic electrical disaster detection control device and a circuit which can be prevented from causing a safety accident such as an electric shock when the fuse is replaced by being blocked.

The above and other objects of the present invention are achieved by the following automatic disaster detection control device and automatic disaster detection control circuit.

The electrical disaster automatic detection control device,

In the case in which the conventional ground fault interrupter 26 is mounted on one side of the control box 1 to which the front cover 2 and the rear cover 2-1 are coupled so that the trip lever 3 is exposed to the front. On the other side of the inner side, the fuse exchange knobs 11 and 11-1 are provided with a fuse exchanging portion 25 to expose the earth leakage breaker unit 26 and the fuse exchanging portion 25 to the circuit board 7. Input line connection terminal (4) (4-1) and the output end connected to the other side of the control box (1) connected to the earth leakage breaker unit 26 and the fuse exchange unit 25 on one side and the other bottom of the control box (1) It is provided with a natural connection (5) (5-1), and provided with a sensing coil (9), a relay (8) and a control switch (10) at the lower and side portions of the earth leakage breaker (36),

The fuse exchange part 25 is provided with a spring 18 at an inner end of the charging chamber 24 in which the fixing grooves 20 and 20-1 are symmetrically formed in the inlet 12-1 and the fuse 16 is inserted thereinto. A pair of fuse cases 12 side by side between the front cover 2 and the rear cover 2-1 and a fuse support cap 11-1 having a handle 11-2 formed at the inlet 12-1. The fuse cap 11 is fixed to the charging metal cap 13 formed with the binding piece 13-1 with the fixing screw 19 so that the fuse cap 11 can be separated and coupled to the side of each fuse case 12. A trip drive switch 17 for operating the trip lever 3 of the earth leakage breaker unit 26, the contact part 17-1 of which is exposed to the fixing groove 20-1 of the inlet 12-1; The light emitting diodes 15 and 15-1 indicating the normality of the fuse 16 and the bimetal switch 14 which are turned on and off by heat of electric wires are provided on the upper side and the side of the fuse case 12. .

In addition, the electrical disaster automatic detection control circuit,

On / off switch 34 and fuse 16 and 16-1 of the earth leakage breaker unit 26 at the front and rear of the sensing coil 9 for detecting a lightning strike, a short circuit, a short circuit, a short circuit, and the like. In this case, the bimetal switch 14 to be turned off is connected, and the feet 15 and 15-1 indicating the quality of the fuse 16 and 16-1 are connected to the resistors R ₅ and R ₆ . (D ₂ ) connected to the line lines of the fuses 16 and 16-1 through (D ₃ ),

The detection coil 9 has an oscillation IC (IC ₁ ) and an oscillation signal of the oscillation IC (IC ₁ ), which are oscillated by the values of the capacitor C ₃ and the resistor R ₄ during lightning, short circuit, and short circuit. And a control switch 10 for resetting the driven relay 8 and the input power.

Since the automatic electrical disaster detection control apparatus and the circuit according to the present invention are configured as described above, the power supply AC is supplied through the switch 34 of the ground fault interrupting unit 26, and the light emitting diodes 15 and 15-1 are provided. ) Is turned on to indicate the supply state, and when the fuse 16 or 16-1 is blown due to a short circuit in the indoor wiring, the diodes 15 and 15-1 on the line are turned off. The fuse will be disconnected.

In addition, when a short circuit occurs, the fuse 16, 16-1 having a large capacity is installed so that the fuse 16, 16-1 is not blown out even though an overcurrent flows. The temperature rises above the set temperature and is turned off, and the relay 8 is driven by the oscillation frequency generated by the oscillation IC IC ₁ , so that the on / off switch of the trip lever driver 26 is turned off.

In addition, when a lightning strike flows into the sensing coil 9 and an excessive current flows, the fuses 16 and 16-1 must be disconnected, but the fuses 16 and 16-1 are not disconnected and the wires are overheated so that a constant temperature is set. Temperature rises above), the bimetal switch 14 is turned on and the oscillation IC IC ₁ oscillates to drive the relay 8. Therefore, the switch 34 is turned off to cut off the power supply.

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

1 to 6 are exemplary views showing a specific implementation of the automatic electrical disaster detection control apparatus according to the present invention, Figure 7 is an exemplary implementation showing an automatic electrical disaster detection control circuit.

1 is a perspective view showing an overall perspective view of the automatic electrical disaster detection control apparatus according to the present invention, that is, the control box (1).

The control box 1 is obtained by fastening the fastening screw 6-1 to the fastening hole 6 by connecting the front cover 2 and the rear cover 2-1 with the fastening screw 6-1. Can be separated from each other.

The control box 1 has several components exposed to the front of the front cover 2.

Input line entry holes 21 and 21-1 and output line entry holes 22 and 22-1 are formed at the upper left and lower right ends of the front cover 2, respectively. In 1), the input wire introduced into the indoor from the column transformer is inserted, and the input wire is inserted into the input line connecting terminal portion 4 (4-1), which will be described later, and the output wire inlet hole 22 ( 22-1) inserts the output wire of the indoor wiring to connect the output wire of the indoor wiring to the output line connecting terminal portion 5 (5-1).

In addition, the front of the front cover (2) the fuse cap (11) for mounting the fuse in the trip lever (3) and the control switch (10) and the safety opening and closing part 25 to turn on / off the input power from the earth leakage breaker (26) 11-1 and the tube diodes 15 and 15-1 indicating the state of the fuse are exposed.

2 is a perspective view showing the internal structure by separating the front cover (2) by loosening the fastening screw (6-1) in the control box (1) of FIG.

The earth leakage breaker unit 26 has the same structure as an earth leakage breaker which is commonly used, and several functions are added thereto. The input line connecting terminal portion 4 (4-1) at the upper end is for supplying power from the outside and is connected to and fixed to an input wire (not shown). The power input through the input line connecting terminal portions 4 and 4-1 is connected to the output line connecting ends 5 and 5-1 on the fuse exchanger 25 side by a network described later in detail with reference to FIG. Is fed into the room through.

The earth leakage breaker unit 26 operates the trip lever 3 installed on the lower support 36 by the shaft 37 up and down, so that the contact 34-1 of the switch 34 is connected to the input line. The power supply is cut off while being detached from the terminals 35 and 35-1 of the terminal parts 4 and 4-1, and one piece 3-1 thereof held in the trip lever control piece 33 is horizontally pressed. It is supposed to be shot by the leaf spring 31 provided in the 30, and the operation shaft 32 is caught by the request 36-1 of the lower support 36 when the trip lever 3 is operated upward. When the trip lever 3 is operated upward, the horizontal pressing plate 30 is pushed inward by the push piece 3-1, so that the switch 34 is retracted, and power is supplied. When the relay 8 is operated due to a short circuit or a lightning strike, the trip lever 3 is automatically lowered by an arbitrary device provided therein to turn off the power. The. Since these structures and operating relationships are well known in the art, the description of more specific technical structures and operating relationships will be omitted.

In addition, the circuit breaker 26 includes a relay 8 and an oscillation IC IC ₁ to control the operation of the trip lever 3, and a circuit board 7 on which various electronic components are mounted. There is a control switch 10 is to push the power supplied to the oscillation IC (IC ₁ ) as a push button switch to be able to check the circuit artificially.

On the other hand, the fuse exchanger 25 provided on the other side of the earth leakage breaker unit 26 detects the temperature of the device and the power supply line for accommodating the fuses 16 and 16-1 and turns the power on / off. The bimetal switch 14 is provided, and the lower end is provided with the output line connection terminal part 5 (5-1) so that the wire which is wired indoors can be connected.

3 to 5 are perspective views and cross-sectional views showing in detail a device for accommodating the fuses 16 and 16-1, and FIG. 6 is an operation explanatory diagram showing a detachable relationship of the fuses.

The fuse case 12 is provided with a charging chamber 24 capable of engaging the fuses 16 and 16-1.

The tip of the charging chamber 24 is connected to the inlet 12-1. The pair of fixing grooves 20, 20-1, which are concave in the shape of the die, are conversely opposed so that the fuse cap 11, which will be described later, can be fixed and dismantled. A spring 18 to be shot is provided.

In addition, the fuse cap 11 detachable from the inlet 12-1 of the fuse case 12 has a binding piece 13-1 protruding from the front end of the charging cap 13 made of metal, and the charging cap (13) is inserted into the fuse support cap (11-1) formed with the handle (11-2) is fixed integrally by a fixing means such as a fixing screw (19).

In particular, a trip drive switch 17 is provided at the inner end of the fixing groove 20-1 so that the contact portion 17-1 is exposed, and the binding piece 13- of the fuse cap 11 is attached to the contact portion 17-1. The trip drive switch 17 is turned on / off as 1) is contacted or spaced apart.

On the upper side of the fuse case 12 configured as described above, light emitting diodes 15 and 15-1 are provided to inform the outside of the fuses 16 and 16-1, which are fuses 16 and 16-16. The light is emitted only when 1) is normal, so that an abnormality of the fuse 16 or 16-1 can be confirmed from the outside.

In addition, the circuit configuration for driving this is as follows.

7 is an automatic electrical disaster detection control circuit according to the present invention. A switch 34 for turning on / off the AC (110 / 220V) power applied outdoors indoors is connected to a sensing coil 9 for detecting an abnormality of lightning or indoor wiring, leakage (short circuit, short circuit, etc.). . When the temperature of the wire wired at one end of the cut-off switch 34 is detected a predetermined temperature (eg 50 ℃) or more is connected to the bimetal switch 14 to block the output (out put), but the protection resistor ( R ₁ ) is connected to the control switch 10 is operated to control the trip handle. In addition, it is connected to the gate terminal (G) of the triac (TRIAC) which stably supplies the power through the diode (D ₁ ) to prevent the reverse voltage, and the short circuit and the short circuit through the resistor (R ₂ ) and the capacitor (C ₁ ). It is connected to the oscillation IC (IC ₁ ) for oscillating frequency and the relay (8) for controlling the trip lever (3) to sense the light, and the terminals T ₁ and T ₂ of the triac (TRIAC) Connect to the oscillation IC (IC ₁ ) through the condenser (C ₂ ) (C ₄ ) to cut off and connect the sensing coil (9) to one end of the relay (8) but through the fuse (16) (16-1) It is connected to the output terminal, and the light emitting diodes 15 and 15-1 informing whether the fuse is abnormal are connected to both ends of the fuses 16 and 16-1.

Hereinafter, the operation relationship of the present invention configured as described above will be described.

As shown in FIG. 1 and FIG. 2, the present invention can be used by connecting the input line and the output line to the input line connecting terminal portion 4, 4-1 and the output line connecting terminal portion 5, 5-1. It becomes possible.

As shown in the electronic circuit diagram of FIG. 7 according to the present invention, the AC (110 / 220V) power supplied from the outdoor line is turned on as the switch 34 of the ground fault interrupter 26 is shown in FIG. In this state, it is supplied to the sensing coil 9 and the whole circuit.

That is, when the trip lever 3 is lifted up, the trip lever control piece 33 suppresses the trip lever 3 from flipping downward and the push piece 3-1 by the trip lever 3 lifted upward. The switch 34 is retracted (turned backward) together with the horizontal pressing plate 30 while being in close contact with the leaf spring 31, and the contact 34-1 of the switch 34 is connected to the input line connecting terminal portion 4 (4). Power is supplied while being connected to the contacts 35 and 35-1 of -1).

The supplied power is supplied to the wires wired indoors through the fuses 16 and 16-1 provided in the fuse cases 12 and 12-1 of the fuse exchanger 25. The light emitting diodes 15 and 15-1 emit light to indicate that power is being supplied, and the bimetal switch 14 maintains the OFF state.

In this state, when a lightning strike due to natural disaster occurs or a short circuit and a short circuit of indoor wires are detected, the detection coil 9 detects this. For example, when the short circuit condition of the indoor wiring is sensed by the sensing coil 9, the fuses 16 and 16-1 are blown, and the light emitting diodes 15 and 15-1 in the lit state are turned off and the fuse 16 is turned off. 16-1 is shorted.

If the short circuit is insignificant or the capacity of the fuses 16 and 16-1 is so large that the fuses 16 and 16-1 are not short-circuited, heat is generated in the internal wires of the control box 1. The bimetal switch 14 detects this, and when the temperature of the wire rises above a certain temperature (for example, 50 ° C.), it is naturally 'on' to conduct the triac (TRIAC) and the oscillation IC (IC ₁ ) is operated.

The oscillation IC (IC ₁ ) whose oscillation frequency is determined by the value of the capacitor (C ₃ ) and the resistance (R ₄ ) generates the oscillation frequency instantaneously (0.03 seconds) to drive the relay (8), and the relay (8) When the drive is driven to release the detention state of the trip lever 3 by operating the trip lever control piece 33 by an arbitrary device (not shown specifically), so that the trip lever 3, which has been raised, has a leaf spring 31. Since the horizontal pressing plate 30 and the switch 34 are advanced by the repulsive force of the at the same time, the contact 34-1 is separated from the contacts 35, 35-1, and thus the earth leakage breaker unit 26 ) Is 'off'.

In addition, when a lightning strike due to a natural disaster is detected on the detection coil 9 and an overcurrent flows, the triac conducts and the oscillation IC IC ₁ starts to oscillate to drive the relay 8 so that the earth leakage breaker unit Trip lever 3 of 26 is turned off while the power is turned off.

Since the relay 8 is operated by the short circuit or the lightning strike and the trip lever 3 of the ground fault interrupting unit 26 is turned down, the power is 'off'. It is omitted.

As described above, the control device and the control circuit according to the present invention operate the relay 8 by the oscillation IC IC ₁ by detecting the short circuit of the indoor wiring due to the detection coil 9 detecting a lightning strike or an overload. By turning off the earth leakage breaker unit 26 and shorting the fuses 16 and 16-1, it is possible to prevent the risk of fire in advance and to inform the outside of the short circuit of the fuse so that the fuse can be replaced. .

In addition, when the fuses 16 and 16-1 are short-circuited due to a short circuit or excessive electrical use, the light emitting diodes 15 and 15-1 are not turned on, so that the light emitting diodes 15 that are not lit ( The fuses 16 and 16-1 of 15-1 may be replaced.

As shown in FIGS. 3 to 5, the fuses 16 and 16-1 inserted into the fuse case 12 may be replaced by the following method.

Hold the fuse replacement handle 11-2 of the fuse cap 11 on the side of the fuse 16 and 16-1 to be replaced, and turn it slightly to the left (counterclockwise) to insert the charge support cap 11-1. The binding piece 13-1 of the cap 13 moves from the narrow fixing groove 20-1 to the fixed groove 20 that has opened in the front to release the detention state of the fuse cap 11. The contact part 17-1 of the trip drive switch 17 pressed by 13-1 is exposed, thereby turning on the trip drive switch 17. In this state, when holding the handle 11-1 and pulling the fuse cap 11, the binding piece 13-1 is out of the fixing groove 20 and at the same time the fuse support cap 11-1 is the fuse case 12 Since the inlet 12-1 is out of the fuse cap 11 is separated from the fuse case 12. At the same time, the fuses 16 and 16-1 are blown off by the spring force of the compressed spring 18 and exposed to the front of the fuse case 12.

On the other hand, when the trip drive switch 17 is turned on, an arbitrary device (not shown) for controlling the trip lever control piece 33 is operated to operate the trip lever control piece 33, so that the trip lever 3 is operated. It will turn off the power during operation.

That is, even when the trip lever 3 of the earth leakage breaker unit 26 is not lowered to cut off the power supply, when the fuse cap 11 is removed, the trip drive switch 17 is 'on' and the trip lever 3 is automatically turned on. It will be lowered to cut off the power supply.

The blown fuse exposed to the front of the fuse case 12 is taken out, and a new fuse 17 is charged (inserted) into the charging chamber 12 of the fuse case 12, and then the binding piece 13- of the fuse cap 11 is inserted. 1) When the fuse cap 11 is rotated to the right while the fuse cap 11 is inserted into the fixing groove 20, the binding piece 13-1 of the fuse cap 11 is inserted into the fixing groove 20-1. Since it is constrained, the fuse cap 11 is held in the inlet 12-1 of the fuse case 12.

As described above, according to the present invention, the ground fault breaker and the toad house are combined in one control box, and the electrical hazards and the toad house can be automatically detected and controlled. It is possible to solve the malfunctions and to make the replacement of fuses safe and convenient for everyone. Especially, the fuses can only be rated, so that the earth leakage breaker unit and the safety opening and closing unit can be operated correctly to prevent electric accidents. To make it possible.

Claims (3)

In the case in which the conventional ground fault interrupter 26 is mounted on one side of the control box 1 to which the front cover 2 and the rear cover 2-1 are coupled so that the trip lever 3 is exposed to the front. On the other side of the inner side, the fuse exchange knobs 11 and 11-1 are provided with a fuse exchanging portion 25 to expose the earth leakage breaker unit 26 and the fuse exchanging portion 25 to the circuit board 7. Input line connection terminal (4) (4-1) and the output end connected to the other side of the control box (1) connected to the earth leakage breaker unit 26 and the fuse exchange unit 25 on one side and the other bottom of the control box (1) It is provided with a natural connection (5) (5-1), and provided with a sense coil (9), a relay (8) and a control switch (10) at the lower and side portions of the earth leakage breaker (36), The upper side and the side of the 25 is provided with light emitting diodes (15) (15-1) exposed and the bimetal switch 14 is an automatic electrical disaster detection control device characterized in that the built-in. In the automatic electrical disaster detection control circuit, a detection coil (9) for detecting lightning, short circuit of indoor wiring, and short circuit, a relay (8) during lightning, short circuit, short circuit in the detection coil (9), and the relay (8) The electrical disaster automatic detection control circuit, characterized in that the switch 34 of the earth leakage breaker unit 26 is turned off by driving of. The fuse changing unit 25 is a charging chamber 24 is formed in the inlet 12-1, the fixing grooves (20, 20-1) are formed symmetrically and the fuse (16) (16-1) is charged A pair of fuse cases 12 provided with a spring 18 at an inner end thereof is disposed between the front cover 2 and the rear cover 2-1 side by side, and a handle 11-2 is provided at the inlet 12-1. ) Is fixed to the fuse support cap (11-1) is formed in the fuse metal cap 13 formed with the binding piece (13-1) with a set screw (19) so that the fuse cap (11) can be separated and combined. And a trip drive switch (17) for operating the trip lever (3) of the ground fault interrupter (26) on each side of each fuse case (12).