KR200445114Y1 - Circuit breaker having trip terminal coupled with multiple sensors - Google Patents

Abstract

The present invention relates to an earth leakage breaker which is automatically tripped by a plurality of sensors such as an electric temperature sensor or a gas leakage sensor, and in particular, an electric temperature sensor, a rated current sensing module, a fire detection sensor, a gas leakage sensor, and a fire central control. The present invention relates to an earth leakage breaker that has a built-in receiving sensor in a trip connection terminal so as to receive a signal by communicating with a center, and automatically cuts off an input power by using an electronic magnet coil and a reset button when an OFF signal is received. Therefore, it is possible to minimize the loss of property and human life spread by the secondary fire by forcibly tripping the power (power OFF) even in the event of a fire.

Thermal Sensor, Trip, Magnet Coil, Sensor, Earth Leakage Breaker

Description

Circuit breaker having trip terminal coupled with multiple sensors}

The present invention relates to an earth leakage breaker that is automatically tripped by a plurality of sensors, such as electrical temperature sensor or gas leakage sensor. An earth leakage breaker is generally installed in a distribution panel that is installed in a home and constitutes an AC voltage circuit, and cuts off the electric circuit when the current is exceeded or exceeded when the load is applied or when a high current occurs momentarily. It is a device used for the purpose of preventing electric shock accidents and fire accidents caused by short circuit and safety accidents caused by overcurrent short circuit.

In general, an earth leakage breaker detects a short circuit in a load such as a circuit or an apparatus that uses electricity, and stops the supply of electricity to the load, thereby preventing damage to a human body due to an electric shock due to a short circuit or generating a fire due to electric ignition. It is an electric appliance.

However, the ground fault circuit breaker according to the prior art operates only when the leakage current is continuously generated in the form of a sine wave or when the effective current flows 10 to 20 times more than the rated current. Electrical fires due to short circuits or line tracking could not be prevented. That is, most current leakage circuit breakers use an earth leakage circuit breaker between the load side and the integrated power meter in which electricity consumption is accumulated.

In general leakage circuit breaker, when the overcurrent flows momentarily due to unexpected short circuit or electric shock in the process of supplying voltage from the input side to the customer's load side through the circuit breaker, the circuit breaker It sensed to cut off the power supply to the load side.

Most of these conventional circuit breakers are defenseless against overheating caused by a defect or contact failure of a contact portion to which an input lead is connected to supply power, and thus, when an unexpected overheat occurs at the contact portion, Deterioration has caused serious problems such as deteriorating the accuracy of the operation or providing a cause of fire in severe cases.

That is, when each component and circuit of the ground fault circuit breaker is deteriorated due to overheating generated at the input side of the ground fault breaker, the ground fault breaker's operation is lowered and the original ground fault breaker function is lost. There was a problem that did not determine the cause properly.

To this end, in the conventional ground fault circuit breaker overheat prevention device, a temperature sensor for detecting a temperature higher than a set value when an overheat occurs due to a poor contact of the contact portion in the energization process adjacent to the connection portion of the ground fault circuit breaker to which the input side wire is connected, the interior of the ground fault breaker Discloses a circuit breaker overheat prevention device equipped with a circuit breaker circuit for driving a switch of the circuit breaker to be interrupted by a signal sensed by a temperature sensor.

As described above, the ground fault circuit breaker in the prior art is only capable of detecting the ground fault and overcurrent, so it is busy to evacuate in case of an emergency fire, so that the electricity is continuously supplied and accordingly, the secondary fire occurs, thereby causing more damage to property. .

In addition, in the overheat prevention device, it is possible to detect this only when the input side conductor and the contact portion are poor in contact. As the sensing by the temperature difference occurs in the load side conductor, only the local sensing function can be performed.

The present invention has been made to solve the above-mentioned conventional problems, the first object is to connect the electric temperature sensor to the trip interlocking terminal to enable the forced trip (power off) operation by the first temperature detection The purpose is to protect the property and life of the second fire.

The second purpose is to send a signal to the electronic magnetic to easily turn off the power when the fire detection or other electricity is turned off by receiving a signal from the fire interlock detection of the communication module and the fire facilities connected to the central control center. To make it possible.

The third object is to provide installation convenience that can be easily installed in a place where there is no fire prevention facility or a poor facility in an existing building.

In order to solve the above-mentioned problems and solve the technical problem, the present invention provides a grounded circuit breaker connected between an input side for supplying electricity and a load side for a user using electricity. Or an electricity supply switch to turn off; An internal rated current sensing module connected to the electricity supply switch to send an overcurrent and an earth leakage signal to the electricity supply switch to mediate ON and OFF operations of a main power supply; An external communication module configured to transmit and receive signals to and from a fire detection sensor and a fire central control center; A temperature sensing module configured to set an appropriate temperature to transmit a detection signal to the electricity supply switch when the measured temperature exceeds the set value; And an external rated current sensing module configured to sense an undercurrent of an electric current flowing through an external conductor, wherein an overcurrent and an overtemperature signal exceeding a set allowable value detected by the plurality of modules are received and transmits an OFF signal to the electrical supply switch. It is characterized in that the trip interlocking terminal for mediating the forced trip process to cut off the main power supply is installed inside the earth leakage breaker.

Here, the electrical supply switch is composed of an electronic magnet consisting of an electromagnetic magnet coil, a contact spring and a reset button, when the signal transmitted from the trip linking terminal is input to the electromagnetic magnet coil, power is supplied to the magnet to the contact point. Pulling the spring is characterized in that the main power cut off.

On the other hand, the electronic magnet is connected to the circuit breaker secondary electric side is supplied with a 220V voltage and stepped down to 12V with a small transformer coil to generate a voltage of the operating coil.

In this case, at 12V, one line is always connected to the magnet, the other line is in contact with the trip interlocking terminal, and the other terminal is characterized in that power is supplied to the magnet.

In addition, the temperature sensing module is characterized in that the thermistor installed on the external load wire.

In addition, a primary temperature and a secondary temperature are set in the load-side conducting wire, a buzzer sounds when the primary temperature is abnormal, and when the secondary temperature is reached, a signal is sent to the trip linking terminal to provide the electronic magnet. It characterized in that the main power cut off.

In addition, a primary current and a secondary current allowance are set in the load-side lead wire, a buzzer sounds when the primary current allowance is reached, and a signal is sent to the trip link terminal when the secondary current allowance is reached. The main power is cut off by the electronic magnet.

In this case, the rated current detection module is characterized by setting the current value desired by the user in the current sensing and graduation and dial type in the electronic circuit, and attaching an LED lamp to display step by step how much current is used.

As described above, when using the earth leakage breaker according to the present invention, by connecting the electric temperature sensor to the trip connection terminal to enable the forced trip (power off) operation by the first temperature detection and the property that is spread by the second fire It can protect lives.

In addition, when fire detection or other electricity is turned off by receiving a signal from the fire interlock detection and communication facilities connected to the central control center of the communication module, an electronic magnetic signal is used to easily turn off the power. There is.

In addition, it has the effect of providing the convenience of installation that can be easily installed in a place where there is no fire prevention facilities or poor facilities in the existing building.

Hereinafter, with reference to the accompanying drawings embodiments of the present invention to achieve the above-described problem solving means will be described in detail.

2 is a circuit breaker diagram for connecting a main wire as an input unit and a load-side wire according to the present invention, and FIG. 3 is a system configuration diagram illustrating a trip interlocking terminal interworking with a plurality of sensors and modules according to the present invention. 5 is a block diagram illustrating a plurality of sensors and modules connected to an earth leakage breaker according to the present invention, and FIG. 5 is a diagram illustrating a relationship between an internal circuit breaker and an external connection module according to the present invention, and FIG. And an embodiment illustrating an external connection module relationship, FIG. 7 is a flow between an electronic magnet and a trip interlocking terminal according to the present invention, FIG. 8 is a configuration diagram of an earth leakage breaker system equipped with a thermistor, and FIG. 9 is an electronic magnet. The wiring diagram between the trip link terminals.

First, the basic configuration of the circuit breaker breaker system of the present invention will be described with reference to FIG. 2. The circuit breaker 100 is connected between a main main wire 180 that is an input side for supplying electricity and a load side load wire 190 for use. The fire interlock and the sensor detection input unit is installed in the ground fault circuit breaker 100, and the main power is turned on / off through a short circuit process of an electrical supply switch which works in conjunction with an external fire fighting equipment, a fire detector or other sensors. do.

3 and 4, the trip interlocking terminal 150 installed inside the ground fault circuit breaker 100 receives a signal received from an external multiple sensors and modules and exceeds a set value. When the abnormal signal is received, an OFF signal is transmitted to the electrical supply switch 110 inside the earth leakage breaker 100 to automatically cut off the main power to automatically turn off.

Here, the plurality of sensors and modules connected to the trip interlocking terminal 150 include an electric temperature sensor 210, such as a thermistor-temperature element, a rated current detection module 140 and 240, and an external fire detection sensor 270. , Gas leakage sensor 220 and the central fire control center 300, etc., which is only one example, but is not limited to this configuration.

Hereinafter, an embodiment of an internal circuit and an external connection system of an earth leakage breaker according to the present invention will be described with reference to FIGS. 5 and 6.

First, the electrical supply switch 110 for turning on / off the main main power is made up of an electronic magnetic to improve the simplicity. Here, the configuration and operation of the electronic magnetic 110 will be described later. The electrical supply switch 110 is connected to the internal rated current detection module 140 to perform the ON / OFF operation, wherein the over-current detection is the connection part inside the earth leakage breaker that is connected to the input side of the main main wire, which is mainly input This is due to overheating and leakage detection signals due to poor contact at.

In addition, the electrical supply switch 110 is connected to the external communication module 320, the heat detection module 310, the external rated current detection module 240 for detecting fire linkage to perform an automatic OFF operation according to the abnormal signal. do. In this case, it is preferable to receive the OFF signal through the trip linking terminal 150.

In addition, it is preferable that the buzzer 130 is installed on one side of the ground fault circuit breaker so as to generate a warning sound in advance before the OFF set value before the automatic OFF execution. In this case, the internal circuit breaker 100 is more preferably configured to be connected to the external fire detection sensor 270 and the central fire control center 300 to transmit and receive the detection signal and command data.

In another embodiment, as shown in Figure 6, to configure the heat-sensitive communication module 315 connected to the internal flow of the circuit breaker 100 of the configuration, the electric temperature sensor 210 is a lot of power use It is installed on the wire for machinery industry, etc., and it generates the frequency according to the temperature change by using the preliminary heat detection due to the overload of the wire. Power off automatically. In addition, the user may hear a notification sound and force a trip.

Accordingly, the earth leakage breaker 100 and the externally connected heat sensing communication module 315 are connected to a load such as a machine and a facility building, and when an abnormal signal is detected, a beep 130 is installed inside the earth leakage breaker 100. If this occurs, the user is forced to trip the main power.

Hereinafter, the operation relationship between the configuration of the electronic magnet 110 and the trip linking terminal 150 will be described in detail with reference to FIGS. 7A and 7B.

First, as shown, the electronic magnet 110 configuration according to the present invention is composed of an electromagnetic magnet coil 111, a reset button 112 and a contact spring (not shown). As shown in FIG. 7A, the electronic magnet coil 111 of the electronic magnet 110 inside the earth leakage circuit breaker 100 at the time of the main power contactor normally supplies the power using the contacts that are always attached.

FIG. 7B illustrates an operation of shutting off the main circuit breaker of the power circuit breaker when a signal is detected. The main power is interrupted by giving an OFF signal to the electronic magnet 110 through the trip interlocking terminal 150. Giving.

The operating principle of the electronic magnetic 110, which is a mechanism for blocking the main power contact of the earth leakage breaker 100, uses an electromagnet principle, and uses the property of pulling an contact spring by giving an electrical signal to the magnetic 110.

FIG. 7B shows a case where the contact spring is pulled by the operation when the power is cut off. In this case, when the magnetic magnetic coil 111 is off once in the manual return type, it is preferable to configure the electronic magnetic coil 111 so that the user can press the reset button to proceed to the normal next operation. The reason is a technique for preventing electricity supply even when the breaker deformation due to heat in case of fire occurs.

The electronic magnet 110 is connected to the circuit breaker secondary electric side, usually contains a spring for pushing the contact, in this case the main role of the contact spring is to attach the contact. In addition, the input voltage of 220V is dropped to the small transformer coil and a voltage drop of the operating coil of 12V is generated.

As a result, as shown in FIG. 9, the signal coming into the trip interlocking terminal 150 replaces the switch function by the contact, and the signal received from all sensors by the fire detector serves to attach the parallel signal contact end and the trip interlocking terminal ( When the signal enters the electronic magnet coil 111 at 150, power is input to the magnet 110 and the main power is cut off while pulling the spring.

In this case, at 12V, one wire is always connected to the magnet 110, one wire is in contact with the trip interlocking terminal 150, and the other terminal is supplied with power to the magnet 110.

8 illustrates a case in which the thermistor 210 is mounted on the load wire 190 as an embodiment of the present invention. As shown, in this case, electrical temperature sensing and rated current setting are possible, and heat is generated in the wire when electricity is excessively used. In the existing ground fault circuit breaker or circuit breaker, it is difficult to detect the heat of the wire, but when thermistor 210 which is a temperature element is mounted, temperature and current allowable values can be set.

In other words, in the existing technology, there was no way to cope with an error in the electric wire due to excessive use of electricity, but it was improved.

In an embodiment, the primary temperature and the secondary temperature are set in the wire, and when the primary temperature is abnormal, the buzzer 130 generates a beep and warns the user of an electrical abnormality. When the heat of the wire reaches the secondary temperature, the earth leakage breaker 100 which receives a signal and receives a signal to the power trip interlocking terminal 150 cuts off the main power by the electronic magnet 110.

In addition, when the desired current value is set to the allowable current of the primary current and the secondary current allowance, and when the primary current is reached, a beep 130 is issued to the user first, and when the secondary current allowance is reached, the trip occurs. The main power supply of the earth leakage breaker 100 and the circuit breaker is turned off through the interlocking terminal 150. The rated current sensing module 140, 240 may set a current value desired by the user to sense current and scale and dial the electronic circuit, and the rated current sensing module 140, 240 employs an LED lamp to determine the current. It shows the user step by step whether it is being used and the user can easily check the amount of current accordingly, and it can reduce the fire prevention and electric loss by notifying the fire and power loss due to the unprotected electricity.

The present invention is not limited to the above-described embodiments, and the scope of application of the present invention is not limited to those of ordinary skill in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made.

That is, in the above embodiment, the temperature sensor and the gas leak sensor are taken as examples, but various other sensors may be applied without being limited thereto.

1 is a circuit breaker for connecting the main wire and the load-side wire of the input unit according to the prior art.

Figure 2 is a circuit breaker for connecting the main wire and the load-side wire of the input unit according to the present invention.

3 is a system configuration diagram showing a trip interlocking terminal interlocked with a plurality of sensors and modules according to the present invention.

Figure 4 is a configuration of a plurality of sensors and modules connected to the earth leakage breaker according to the present invention.

Figure 5 is an embodiment showing the relationship between the circuit breaker internal flow and external connection module according to the present invention.

Figure 6 is an embodiment showing the relationship between the circuit breaker internal flow and the external connection module according to the present invention.

7 is a flow between the electronic magnet and the trip interlocking terminal according to the present invention.

8 is a block diagram of a circuit breaker system equipped with a thermistor as an embodiment.

9 is a connection diagram between an electronic magnet and a trip interlocking terminal.

<Description of the symbols for the main parts of the drawings>

100: earth leakage breaker 110: electronic magnetic

150: trip link terminal 140, 240: rated current sensing module

210: electric temperature sensor (thermistor)

220: gas leakage sensor 270: fire detection sensor

300: fire control center 310: heat detection module

Claims (8)

In the earth leakage breaker which is wired between the main wire on the input side for supplying electricity and the load wire on the load side of the user who uses electricity, An electricity supply switch that determines whether electricity is applied and turns the main power on or off; A plurality of sensors and modules which transmit a recognized abnormal signal to the electricity supply switch and are installed inside and outside the earth leakage breaker; And Receives an over-current and over-temperature signal exceeding the set allowance detected by the plurality of sensors and modules, and transmits an OFF signal to the electrical supply switch to mediate a forced trip process to cut off the main power, and trip interlock installed in the earth leakage breaker. Including; terminal; The electrical supply switch is composed of an electronic magnet consisting of an electromagnetic magnet coil, a contact spring and a reset button. When a signal transmitted from the trip interlocking terminal is input to the electromagnetic magnet coil, power is supplied to the magnet to draw the contact spring. Pull the main power off, The module may include an external communication module configured to transmit and receive signals to and from a fire detection sensor and a fire central control center; A temperature sensing module configured to set an appropriate temperature to transmit a detection signal to the electricity supply switch when the measured temperature exceeds the set value; And a rated current sensing module configured to sense an undercurrent of current flowing through the internal and external wires, wherein the sensor is an electrical temperature sensor or a gas leakage sensor. breaker. delete delete delete The method of claim 1, The electrical temperature sensor is a circuit breaker with a built-in trip interlocking terminal interlocked with a plurality of sensors, characterized in that the thermistor is installed on the external load wire. The method according to claim 1 or 5, A primary temperature and a secondary temperature are set to the load wire, and when the primary temperature is higher than the first temperature, a buzzer sounds. When the secondary temperature is reached, a signal is transmitted to the trip interlocking terminal by the electronic magnet. An earth leakage breaker with a built-in trip interlocking terminal interlocked with a plurality of sensors, characterized in that the main power is cut off. The method of claim 6, A primary current and a secondary current allowance are set in the load wire, a beep sound is generated when the primary current allowance is reached, and a signal is sent to the trip link terminal when the secondary current allowance is reached. An earth leakage breaker with a built-in trip interlocking terminal interlocked with a plurality of sensors, characterized in that the main power is cut off by an electronic magnet. The method of claim 6, The rated current detection module is interlocked with a plurality of sensors, characterized in that the electric current is detected in the electronic circuit and set the current value desired by the scale and dial type, and attaching an LED lamp to display how much current is used. Earth leakage breaker with trip interlock terminal.

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