KR20230060375A - Fire extinguishing system of Switchboard - Google Patents

Abstract

The present invention includes a fire extinguisher unit accommodating fire extinguishing materials therein and installed inside or outside the switchboard; a fire extinguishing operation unit for operating the fire extinguisher unit to spray the fire extinguishing agent; A fire detection unit that detects whether a fire has occurred inside the switchboard; a door open/close detector detecting whether the door of the switchboard is opened or closed; Control for determining the occurrence of a fire through an output signal of the fire detection unit, operating the fire extinguishing operation unit when the door is in a locked state through an output signal of the door open/close detection unit in case of fire, and locking the door when the door is in an open state a controller that outputs a signal; a door locking unit operating according to a control signal from the control unit to generate power; and a door connecting part connected to the door locking part and the door, and locking the door by interlocking with power of the door locking part.

Description

Fire extinguishing system of Switchboard}

The present invention relates to a fire extinguishing system of a switchboard, switchboard, and distribution switchboard (hereinafter collectively referred to as 'switchboard'), and when a fire is detected, if the door of the switchboard is open, the switchboard automatically locks the door and sprays fire extinguishing agent. of the digestive system.

In general, since various power devices and wires are installed in a switchboard, the risk of fire is higher than that of other facilities in a building. For this reason, fire monitoring devices and fire suppression (extinguishing) devices are often installed in switchboards.

For example, Korean Patent Registration No. 10-1880864 (name of invention: switchboard fire management system) uses sensors such as temperature, smoke, carbon dioxide amount, etc. to monitor whether a fire occurs in the switchboard, It is disclosed that the position is identified and the fire extinguishing powder is sprayed intensively to the part.

In addition, Korean Patent Registration No. 10-1411958 (name of invention: distribution panel equipped with a fire extinguisher) discloses that when the internal temperature of the distribution panel rises to 72 degrees or more, regardless of whether a fire occurs or not, a through hole provided in the upper center of the distribution panel case It is disclosed that the fire extinguishing agent of the fire extinguisher is sprayed through.

In addition, various technologies for a switchboard having a fire extinguishing function are disclosed.

However, if the door of the switchboard is open due to negligence in spraying the fire extinguishing agent inside the switchboard according to the occurrence of a fire, a large amount of the fire extinguishing agent among the sprayed fire extinguishing agents escapes to the outside through the door, making it difficult to properly extinguish the fire. A problem arises that cannot be

1. Domestic Patent Registration No. 10-1411958 (registration date, 2012.09.13) 2. Korean Patent Publication No. 10-1880864 (registration date, 2018.07.16)

An object of the present invention is to provide a fire extinguishing system of a switchboard that checks whether the door of the switchboard is opened or not and automatically locks the door when a fire occurs.

In addition, the present invention is to provide a fire extinguishing system of a switchboard in which an extinguishing agent is sprayed only when the door of the switchboard is locked.

A fire extinguishing system of a switchboard according to an embodiment of the present invention for achieving the above object includes a fire extinguisher unit accommodating fire extinguishing materials therein and installed inside or outside the switchboard; a fire extinguishing operation unit for operating the fire extinguisher unit to spray the fire extinguishing agent; A fire detection unit that detects whether a fire has occurred inside the switchboard; a door open/close detector detecting whether the door of the switchboard is opened or closed; Control for determining the occurrence of a fire through an output signal of the fire detection unit, operating the fire extinguishing operation unit when the door is in a locked state through an output signal of the door open/close detection unit in case of fire, and locking the door when the door is in an open state a controller that outputs a signal; a door locking unit operating according to a control signal from the control unit to generate power; and a door connecting part connected to the door locking part and the door and locking the door by interlocking with power of the door locking part.

The door open/close detection unit includes a photo coupler composed of one of a light receiving element and a light emitting element installed on one end surface of the door and the other installed on a surface facing the one end surface of the door, and the light emitting element and the image light receiving element may be installed facing each other.

It may include a hall sensor installed at a location where the fastening member installed on the door is coupled and detecting the fastening member, which is a conductor.

The door open/close detection unit may include a pressure sensor installed at a location where a coupling member coupled to the coupling member installed in the door detects whether pressure is applied to the coupling member.

The door open/close detection unit is a sensor that detects movement or a direction of movement of the door connection part, and includes a movement detection sensor that detects movement of the door connection part when the door is opened in a closed state and outputs a detection signal. can do.

The door connection part includes a permanent magnet generating magnetic force of a second polarity, and the door locking part is installed on a first surface connected to the door by a hinge and operates under the control of the control unit to generate magnetic force of a second polarity. It may contain an electromagnet.

Alternatively, the door connecting part has one end connected to the inner surface or the outer surface of the door and the other end connected to the door locking part, and the door locking part includes a motor and operates under the control of the controller to operate the door connecting part. The door can be closed by pulling or pushing.

According to the present invention, when a door of a switchboard is open when a fire is detected, the door is automatically locked and then a fire extinguishing agent is sprayed into the switchboard so that the fire is extinguished more quickly than when the door is open.

1 is a block diagram of a fire extinguishing system of a switchboard according to an embodiment of the present invention.
2 is a view showing the installation position of the fire extinguisher unit in the fire extinguishing system of the switchboard according to an embodiment of the present invention.
3 is a view showing the installation state of the door connection part in the fire extinguishing system of the switchboard according to the first embodiment of the present invention.
4 is a view showing the installation state of the door connection part in the fire extinguishing system of the switchboard according to the second embodiment of the present invention.
5 is a view showing the installation state of the door connection part in the fire extinguishing system of the switchboard according to the third embodiment of the present invention.
6 is a flowchart for explaining the operation of the fire extinguishing system of the switchboard according to an embodiment of the present invention.

Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, but the same or similar elements are given the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. In addition, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiment disclosed in this specification, the detailed description thereof will be omitted.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, each step described can be performed regardless of the listed order, except for the case where it must be performed in the listed order due to a special causal relationship.

In this application, terms such as "comprise" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a block diagram of a fire extinguishing system of a switchboard according to an embodiment of the present invention. Referring to FIG. 1 , the fire extinguishing system 100 of the switchboard according to an embodiment of the present invention includes a fire extinguisher unit 110, a fire extinguishing operation unit 120, a fire detection unit 130, a door open/close detection unit 140, a door It includes a locking part 150, a door connection part 160 and a control part 170. On the other hand, power is required to operate electronic devices (sensors, controllers, etc.), and a power supply unit for supplying such power is essential. Since the existence of such a power supply unit is natural, it is omitted in FIG. 1 .

The fire extinguisher unit 110 includes a fire extinguisher (not shown) containing a fire extinguishing agent and a fixing part (not shown) for fixing the fire extinguisher to the switchboard. In the above, the fire extinguisher includes all types of fire extinguishers sold on the market, as well as a self-made fire extinguisher having a built-in liquid or powder fire extinguishing agent sprayed for fire suppression.

The fire extinguishing operation unit 120 is mechanically connected to the fire extinguisher and operates so that the fire extinguisher can operate to spray the built-in fire extinguishing agent. For example, in the case of a general fire extinguisher sold on the market, the fire extinguishing operation unit 120 pulls out the safety pin of the fire extinguisher and presses the handle of the fire extinguisher to spray the fire extinguisher. As another example, in the case of a self-made fire extinguisher having a built-in fire extinguishing agent, the fire extinguishing operation unit 120 performs an operation such as bursting the fire extinguisher or piercing a spray nozzle so that the fire extinguishing agent is sprayed to the outside by internal pressure.

The fire detection unit 130 includes at least one sensor, and detects the occurrence of a fire with a signal detected by the at least one sensor. At this time, the sensor is a temperature sensor, a flame sensor, a smoke sensor, a humidity sensor, a heat sensor, and the like.

The door open/close detector 140 detects whether the door 210 of the switchboard is open or closed. The door open/close detector 140 detects the open/close of the door 210 using at least one sensor. A hall sensor, a light sensor (photocoupler), a pressure sensor, a movement detection sensor, etc. are used as sensors of the door open/close detection unit 140. Any sensor that can be used can be used.

The Hall sensor is a sensor that does not react and does not generate voltage when a conductor is far away, but generates voltage when a conductor is close. Therefore, in order to detect the door opening/closing, the hall sensor is installed at the position where the fastening member installed on the door 210 is coupled. That is, when the door 210 is closed, the fastening member of the door 210 is positioned in contact with the coupling member of the switchboard, and when the door 210 is open, the fastening member of the door 210 falls on the coupling member. there is a state Therefore, if the hall sensor is installed at the location where the coupling member is installed, that is, on the back side of the coupling member, and the fastening member is made of a conductor, the hall sensor outputs a signal when the fastening member is in contact with the coupling member so that the door 210 is closed. It notifies that it is in a locked state, and if the fastening member is away from the coupling member, it does not output a signal to inform that it is in an open state.

As another example, the Hall sensor may be installed on a hinge connecting the door 210 and the switchboard 200 . At this time, a conductor is installed in the hinge, and the conductor is installed closest to the hall sensor when the door 210 is locked. Therefore, the hall sensor outputs a signal when the door 210 is closed because the conductor of the hinge is close to it, and does not output a signal when the door 210 is open because the conductor of the hinge moves away.

A photo coupler, which is an optical sensor, is composed of a light receiving element and a light emitting element, the light emitting element emits light, and the light receiving element receives the light emitted from the light emitting element. Such a photo coupler outputs a signal when light is received from a light receiving element, and does not output a signal when light is not received from a light receiving element. When such a photo coupler is applied to the door open/close detector 140, a light receiving element (or light emitting element) is installed on one end surface of the door 210, and one side of the door 210 is in a locked state. A light emitting element (or light receiving element) is installed on the surface facing the end face. At this time, when the door 210 is locked, the light emitting element and the light receiving element are installed to face each other. Here, the remaining three end faces of the door 210 excluding the end face where the hinge is installed are spaced apart from the switchboard when the door is opened. The light receiving element (or light emitting element) of the photo coupler is installed on one of the three end surfaces separated from the switchboard when the door is opened. Of course, light receiving elements (or light emitting elements) may be installed on two or three end surfaces.

The pressure sensor detects an external pressing force (pressure). When such a pressure sensor is applied to the door open/close detector 140, the pressure sensor is installed at a location where a coupling member installed on the door 210 is coupled. Accordingly, when the door 210 is closed, the fastening member of the door 210 comes into contact with the coupling member of the switchboard to press the pressure sensor so that the pressure sensor outputs a signal, and when the door 210 is open, the door 210 ) does not output a signal because the force does not act on the pressure sensor because the fastening member is away from the coupling member.

In addition, the pressure sensor may be installed anywhere where force is applied to the pressure sensor when the door 210 is in a closed state.

The movement detection sensor is a sensor that detects the movement or movement direction of the door connection unit 160, and when the door is opened in a closed state, the door connection unit 160 moves in conjunction with the movement of the door 210. The movement of the door 210 is sensed and a signal is output when the door is open.

The door locking unit 150 generates power to pull or push the door connection unit 160 to lock the door 210 connected to the door connection unit 160 . The door locking unit 150 is configured to generate power or power such as a motor by an electromagnet.

The door connecting part 160 moves by the power generated by the door locking part 150 and closes the door 210 .

The door locking unit 150 and the door connecting unit 160 will be described in detail below with reference to FIGS. 3 to 5 .

The control unit 170 receives the outputs of the fire detection unit 130 and the door open/closed detection unit 140 to determine whether a fire is detected. For example, the control unit 170 determines that a fire occurs when the temperature measured by the temperature sensor of the fire detection unit 130 is equal to or higher than a set temperature, or determines that a fire occurs when the flame sensor of the fire detection unit 130 detects a flame. judge As another example, the control unit 170 determines that a fire has occurred if the amount of smoke in the air is greater than a set amount through the smoke sensor of the fire detection unit 130, or through output signals of the temperature sensor and the humidity sensor of the fire detection unit 130. When the internal temperature of the switchboard 200 is higher than the set temperature and the humidity is lower than the set value, it is determined that a fire has occurred.

If it is determined that a fire has occurred or will occur inside the switchboard 200, the control unit 170 operates the fire extinguishing unit 120 or the door locking unit 150. Specifically, when receiving a fire detection signal from the fire detection unit 130, the control unit 170 operates the door open/close detection unit 140 and determines whether the door is opened or closed through the output of the door open/close detection unit 140, and When is in an open state, the door locking unit 150 is operated to control the door 210 to be closed.

2 is a view showing the installation position of the fire extinguisher unit in the fire extinguishing system of the switchboard according to an embodiment of the present invention. Referring to FIG. 2 , in the switchboard 200 according to the embodiment of the present invention, the fire extinguisher unit 110 may be installed outside the switchboard 200 or inside the switchboard 200 .

3 is a view showing the installation state of the door connection part in the fire extinguishing system of the switchboard according to the first embodiment of the present invention. Referring to FIG. 3 , the door locking unit 150 is installed on a surface connected to the door 210 by a hinge (hereinafter referred to as “first surface”), and the door connecting unit 160 is installed on the door locking unit 150. It is spaced apart and installed on the door 210 . At this time, the door locking part 150 and the door connecting part 160 are installed so as to come close to or come into close contact with each other when the door 210 is maximally opened.

The door locking unit 150 includes an electromagnet that generates magnetic force of a specific polarity by power supplied from the power supply unit. The door locking unit 150 operates in a state in which power is not supplied, that is, in a state in which magnetic force is not generated in the case of a general situation (a situation that is not controlled by the controller 170). Alternatively, the door locking unit 150 operates in a state in which magnetic force of the first polarity is generated in a general situation (a situation not controlled by the control unit 170).

Further, the door locking unit 150 generates magnetic force of the second polarity by power input according to the control of the control unit 170 received in a situation where a fire occurs or is predicted.

The door connection part 160 includes a permanent magnet generating magnetic force of the second polarity.

Accordingly, when the door locking unit 150 receives the control of the control unit 170 while the door 210 is open, it generates magnetic force of the second polarity, and accordingly, the door connection unit 160 locks the door locking unit 150 Since magnetic force of the same polarity as that of the magnetic force generated in is generated, a repulsive force is generated for the magnetic force generated in the locking part 150 to move and close the door 210 .

4 is a view showing the installation state of the door connection part in the fire extinguishing system of the switchboard according to the second embodiment of the present invention. Referring to FIG. 4 , the door connection part 160 is located and installed inside the switchboard 200 . The door connection part 160 generally has a straight bar shape or a curved shape, and one end is fixed to a part of the inner surface of the door 210 and the other end is connected to the motor of the door locking part 150.

For example, when the door connection unit 160 is made of a flexible material such as wire, it is wound around a winding member (not shown) installed on the door locking unit 150 and connected to a motor of the door locking unit 150, and the motor By rotating the winding member, the door connection part 160 is wound around the winding member, and the door is pulled and locked.

As another example, when the door connection unit 160 is made of a hard material, it may be connected to a moving unit (not shown) connected to a motor of the door locking unit 150 . At this time, the moving part moves according to the movement of the door 210, and the motor locks the door by pulling the moving part during operation.

5 is a view showing the installation state of the door connection part in the fire extinguishing system of the switchboard according to the third embodiment of the present invention. Referring to FIG. 5 , the door connection part 160 is located and installed outside the switchboard 200 . In addition, the door connection part 160 has a curved shape as a whole, and one end is fixed to a part of the outer surface of the door 210 and the other end is connected to the motor of the door locking part 150 . The door connection unit 160 may be made of a flexible material such as a wire or a hard material.

The door locking part 150 connected to the door connecting part 160 may be located inside the switchboard 200 or outside the switchboard 200 . Since the connection relationship between the door connecting part 160 and the door locking part 150 is the same as that of the second embodiment, a detailed description thereof will be omitted.

6 is a flowchart for explaining the operation of the fire extinguishing system of the switchboard according to an embodiment of the present invention. Referring to FIG. 6 , the fire detection unit 130 detects whether or not a fire occurs inside the switchboard 200 at each set time interval and provides the detection result to the control unit 170 (S610).

When the control unit 170 determines that a fire has occurred or will occur through a signal received from the fire detection unit 130, it operates the door open/closed detection unit 140 (S620).

The door open/close detection unit 140 starts an operation according to a control signal from the control unit 170, and when the operation starts, determines whether the door 210 is closed or open through a sensor, and determines whether the door 210 is closed or open, and returns the result to the control unit 170. Provided to (S630).

The controller 170 determines whether the door 210 is closed or open through the signal received from the door open/close detector 140 (S640), and if the door 210 is closed, the fire extinguishing operation unit 120 Fire extinguishing control is performed to operate (S660), and accordingly, the fire extinguisher unit 110 sprays the fire extinguishing fluid into the switchboard 200 (S670).

Meanwhile, when the control unit 170 determines that the door 210 is open through the signal received from the door open/close detection unit 140 (S660), it performs door locking control by operating the door locking unit 150 (S650). ).

By such door locking control, in the case of the first embodiment, power is supplied to the door locking unit 150 to operate as an electromagnet having a polarity opposite to that of the door connecting unit 170, and accordingly, the door locking unit 170 The door connection part 170 installed on the door 210 , that is, the permanent magnet is attracted to close the door 210 .

In the case of the second and third embodiments, the motor of the door locking unit 150 operates, and accordingly, the door connection unit 170 connected to the motor closes the door 210 in conjunction with the operation of the motor.

Specifically, when the door connection unit 160 is installed inside as in the second embodiment, the door connection unit 160 pulls the door 210 to close the door 210 in conjunction with the operation of the motor, and closes the door 210, as in the third embodiment. Likewise, when the door connection unit 160 is installed outside, the door connection unit 160 pushes the door 210 in conjunction with the operation of the motor to close the door 210 .

The control unit 170 operates the door open/close detection unit 140 until it detects the closing of the door 210, and when the door 210 is closed through door lock control, the door open/close detection unit 140 operates the door 210. notifies the controller 170 of the closing of Then, when the controller 170 determines that the door 210 is closed from the open state, the door open/close detection unit 140 is deactivated, and then the fire extinguishing operation unit 120 is operated so that the fire extinguisher unit 110 can discharge the fire extinguishing agent from the switchboard ( 200) to be sprayed into the interior.

The technical features disclosed in each embodiment of the present invention are not limited to the corresponding embodiment, and unless incompatible with each other, the technical features disclosed in each embodiment may be merged and applied to other embodiments.

Therefore, in each embodiment, each technical feature is mainly described, but each technical feature may be merged and applied to each other unless incompatible with each other.

The present invention is not limited to the above-described embodiments and accompanying drawings, and various modifications and variations will be possible from the viewpoint of those skilled in the art to which the present invention belongs. Therefore, the scope of the present invention should be defined by not only the claims of this specification but also those equivalent to these claims.

100: fire extinguishing system 200: switchboard
110: fire extinguisher unit 120: fire extinguishing operation unit
130: fire detection unit 140: door open/closed detection unit
150: door restraint 160: door connection
170: control unit 210: door

Claims (7)

A fire extinguisher unit that accommodates fire extinguishing materials inside and is installed inside or outside the switchboard;
a fire extinguishing operation unit for operating the fire extinguisher unit to spray the fire extinguishing agent;
A fire detection unit that detects whether a fire has occurred inside the switchboard;
a door open/close detector detecting whether the door of the switchboard is opened or closed;
Control for determining the occurrence of a fire through an output signal of the fire detection unit, operating the fire extinguishing operation unit when the door is in a locked state through an output signal of the door open/close detection unit in case of fire, and locking the door when the door is in an open state a controller that outputs a signal;
a door locking unit operating according to a control signal from the control unit to generate power; and
It is connected to the door and includes a door connection part that locks the door in conjunction with the power of the door locking part.
Fire extinguishing system in switchboard. According to claim 1,
The door open/close detection unit,
A photo coupler composed of one of a light receiving element and a light emitting element installed on one end surface of the door and the other installed on a surface facing the one end surface of the door, wherein the light emitting element and the upper light receiving element are installed to face each other ,
Fire extinguishing system in switchboard. According to claim 1,
The door open/close detection unit,
Including a Hall sensor installed at a location where the coupling member to which the coupling member installed on the door is coupled detects the coupling member, which is a conductor.
Fire extinguishing system in switchboard. According to claim 1,
The door open/close detection unit,
A pressure sensor installed at a location where the coupling member installed in the door is coupled to detects whether pressure is applied to the coupling member,
Fire extinguishing system in switchboard. According to claim 1,
The door open/close detection unit,
A sensor for detecting movement or a direction of movement of the door connection unit, comprising a movement detection sensor for outputting a detection signal by detecting the movement of the door connection unit when the door is opened in a closed state,
Fire extinguishing system in switchboard. According to claim 1,
The door connection part includes a permanent magnet generating magnetic force of a second polarity,
The door locking part includes an electromagnet installed on a first surface connected to the door by a hinge and operating under the control of the control unit to generate magnetic force of a second polarity.
Fire extinguishing system in switchboard. According to claim 1,
The door connection part has one end connected to the inner or outer surface of the door and the other end connected to the door locking part,
The door locking unit includes a motor and operates under the control of the control unit to close the door by pulling or pushing the door connection unit.
Fire extinguishing system in switchboard.

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