KR102611735B1 - Automatic fire extinguishing system of electric vehicle and automatic fire extinguishing method of electric vehicle using the same - Google Patents

Abstract

The present invention includes a frame part that is erected and installed around a parked electric car, a water cutoff plate that is movable in the up and down directions on the frame part and forms a bottom surface and a water tank when lowered to accommodate the electric car inside the water tank; A driving module is installed on the frame and moves the water stopper in the up and down direction according to a control signal, and a sprinkler device that sprays fire extinguishing water when the water stopper lowers to form a water tank, causing the electric vehicle to submerge in the water in the water tank. Wow, a sensor unit that detects whether a fire has occurred in an electric vehicle, and when a fire in an electric vehicle is detected by the sensor unit, it controls the drive module to lower the water barrier, and controls the spraying of fire extinguishing water from the sprinkler device to control the electric vehicle's fire. An automatic fire extinguishing system for an electric vehicle can be provided, which includes a control unit that causes the fire extinguishing water contained in the water tank to submerge and settle. According to the above, since it detects a fire and operates automatically, there is almost no waiting time and the fire can be extinguished in a short period of time. In the event of a fire, it can be quickly extinguished in the initial stage, minimizing damage by preventing damage to vehicles and people and the spread of secondary fire. , it can reduce rapidly increasing fire damage to surrounding vehicles.

Description

Automatic fire extinguishing system of electric vehicle and automatic fire extinguishing method of electric vehicle using the same {Automatic fire extinguishing system of electric vehicle and automatic fire extinguishing method of electric vehicle using the same}

The present invention relates to an automatic fire extinguishing system for electric vehicles. More specifically, it is easy to install and can solve vulnerabilities in installation at parking lot charging stations, etc., and quickly and effectively extinguishes fire in the event of a fire in an electric vehicle charging in a parking lot. This is about an automatic fire extinguishing system for electric vehicles.

Recently, as the spread of electric vehicles has increased, many electric vehicle charging stations are being installed in underground parking lots of apartments, public offices, and parks. However, at these electric vehicle charging stations, fires often occur when charging electric vehicles. The causes of such fires include abnormal operation of the battery, abnormal operation by the charging device, or abnormal operation between the battery and the charging device. Fires are mainly caused by abnormalities in the highly combustible lithium-ion batteries in the vehicle.

Meanwhile, most lithium-ion batteries in electric vehicles are installed in square, circular, or pouch-shaped shapes at the bottom of the vehicle, and fires occur due to external shock, damage to the overcharge separator, or manufacturing defects. When a fire occurs, a chain reaction of harmful gases and heat can easily occur, resulting in a rapid fire. There is a serious problem that it is difficult to extinguish the fire with the existing external sprinkler fire extinguishing method. The most efficient way to deal with this is using a portable water tank. There is a method of extinguishing the fire by moving the electric vehicle that caught fire with a crane and sinking it into a water tank after installing it.

However, as this conventional electric vehicle fire suppression system requires a mobile water tank, not only is the local fire department equipped with a mobile water tank limited, but also the prepared water tank and lifting equipment to place the fire vehicle into the water tank must be dispatched together, so travel time is shortened. It is long and difficult to work with depending on the location, making rapid fire extinguishing difficult, and there are problems in that the amount of fire extinguishing water consumed to extinguish a fire using the sprinkler fire extinguishing method is large and the extinguishing time also takes a long time.

Republic of Korea Patent Publication No. 10-2485458

The purpose of the present invention is to provide an automatic fire extinguishing system for an electric vehicle that can quickly and effectively extinguish a fire in an electric vehicle and an automatic fire extinguishing method for an electric vehicle using the same.

According to one aspect of the present invention, the present invention includes a frame part erected and installed around a parked electric vehicle; a water cutoff plate installed to be movable in the vertical direction on the frame and formed to have a set height to form a bottom surface and a water tank when lowered to accommodate the electric vehicle inside the water tank; a driving module installed on the frame unit and moving the water shutoff plate in an upward and downward direction according to a control signal; a sprinkler installed on the upper part of the frame unit, which sprays fire extinguishing water when the water stopper plate descends to form a water tank so that the electric vehicle is immersed in the fire extinguishing water in the water tank and sinks; A sensor unit that detects whether a fire occurs in the electric vehicle; When a fire in the electric vehicle is detected by the sensor unit, the drive module is driven to control the water stopper plate to be lowered, and the sprinkler device is controlled to spray fire extinguishing water so that the electric vehicle is sprayed with the fire extinguishing water contained in the water tank. An automatic fire extinguishing system for an electric vehicle can be provided, comprising a control unit that allows the vehicle to be immersed and allowed to settle.

Here, the frame part includes pillar frames erected around the electric automatic tooth in a hexahedral frame structure, connection frames connecting the pillar frames to each other, and a front surface coupled to the pillar frames to shield the front of the electric vehicle. It may be configured to include a plate.

The water stopper plate has a plate shape and is positioned to stand in a vertical direction on both sides and the rear of the electric vehicle, respectively, and can be formed to form a square water tank through the front plate and bottom surface when lowered.

The drive module includes a drive motor that rotates in both directions according to a control signal from the control unit, is axially connected to the drive motor and rotates in both directions, is erected in a vertical direction corresponding to the vertical movement direction of the water stop plate, and has threads on the outer peripheral surface. A driving screw is formed, a screw moving part that is screwed to the inner peripheral surface of the driving screw and moves back and forth in the up and down direction according to the bidirectional rotation of the driving screw, and is formed to protrude on the outside of the screw moving part and is fixedly coupled to the water plate. It may be configured to include a fixed coupling portion and a connection bracket that reciprocates the water plate in the vertical direction according to the bi-directional rotation of the drive screw.

Alternatively, the drive module includes a drive motor that rotates in both directions according to a control signal from the control unit, is installed on the upper part of the frame, is axially connected to the drive motor, and is arranged in a horizontal direction to rotate in both directions about a horizontal rotation axis. A rotating shaft, a rotating roller that is axially coupled to the rotating shaft and rotates in conjunction with the rotation of the rotating shaft, one side is coupled to the rotating roller and is wound or unwound by the rotating roller according to the two-way rotation of the rotating roller, and the other side is lower It may be configured to include a connecting member that is coupled to the water stop plate and moves the water stop plate up and down as it is wound or unwound by the rotating roller.

The connecting member has one end coupled to the water cutoff plate on one side, a middle portion connected to the rotating roller and wound or unwound, and the other side coupled to the water cutoff plate on the other side facing the water cutoff plate, so that the rotating roller The water blocking plates on both sides facing each other may be configured to move in conjunction with each other as rotation occurs.

The rotation shaft is installed on one upper side of the frame, is axially connected to the drive motor, is disposed in a horizontal direction, rotates in both directions about the horizontal rotation axis, and includes a first rotation shaft to which the rotation roller is coupled, and the other upper side of the frame. It may be configured to include a second rotation shaft that is installed and connected to the first rotation shaft by a connection means, rotates by receiving the rotation force of the first rotation shaft, and to which the rotation roller is coupled.

The water blocking plate may be provided with a packing portion at the lower end to maintain airtightness with the ground when lowered.

The sprinkler device includes a supply pump that supplies the fire extinguishing water according to a control signal from the controller, and is connected to the supply pump to receive the fire extinguishing water and is arranged in a square closed loop shape corresponding to the planar shape of the electric vehicle. It may be configured to include a supply pipe and a plurality of injection devices provided in the supply pipe to spray the fire extinguishing water downward.

The sensor unit includes a carbon monoxide detection sensor that detects carbon monoxide, and a heat detection sensor that detects ambient temperature. Accordingly, the control unit determines that the amount of carbon monoxide and the temperature value received from the carbon monoxide detection sensor and the heat detection sensor are greater than or equal to a reference value. If so, it can be determined that a fire has occurred.

In addition, the sensor unit includes a water level sensor that measures the water level of the fire extinguishing water in the water tank when the fire extinguishing water is sprayed after the water stopper lowers to form a water tank, and a temperature sensor that measures the temperature of the fire extinguishing water in the water tank. It includes, wherein the control unit controls the sprinkler device to supply the fire extinguishing water when the water level of the fire extinguishing water received from the water level sensor corresponds to the set water level and the temperature of the fire extinguishing water in the water tank is below the set temperature. can be stopped.

According to another aspect of the present invention, the present invention includes the steps of using the automatic fire extinguishing system of the electric vehicle to determine whether a fire has occurred in the electric vehicle through information received from the sensor unit; When a fire in an electric vehicle is detected, controlling the drive module to lower the water cutoff plate so that the electric vehicle is located in the water tank; When the water stopper lowers to the set position, controlling the sprinkler to spray the fire-fighting water so that the electric vehicle is submerged in the fire-fighting water in the water tank; When it is determined that the fire in the electric vehicle has been extinguished, draining the fire extinguishing water in the water tank and controlling the drive module to raise the water stop plate can be provided. .

Here, in the step of lowering the water stopper, if the amount of carbon monoxide and the temperature value received from the sensor unit including the carbon monoxide detection sensor and the heat detection sensor are above the reference value, it is determined that a fire has occurred and the water stopper can be raised.

In the step of raising the water stopper, if the water level of the fire extinguishing water corresponds to the set water level and the temperature of the fire fighting water in the water tank is below the set temperature, it is determined that the fire of the electric vehicle has been extinguished and the sprinkler device is controlled to control the water stopper. The supply of fire extinguishing water may be stopped.

The automatic fire extinguishing system for an electric vehicle according to the present invention can provide the following effects.

First, it detects high temperature and carbon monoxide using sensors and operates automatically, so there is almost no waiting time and the fire can be extinguished in a short period of time, within the first 10 minutes. In the event of a fire, rapid extinguishment is achieved in the initial stage, preventing damage to vehicles and people and secondary fires. Damage can be minimized by preventing the spread, and rapidly increasing fire damage to surrounding vehicles can be reduced.

Second, in the event of a fire, unmanned automatic fire extinguishing is carried out step by step within 2 to 3 minutes, so there is no need for initial fire extinguishing personnel to extinguish the fire, which reduces the manpower energy required and the possibility of human casualties.

Third, since the fire is extinguished by forming a water tank around the electric vehicle and submerging the electric vehicle battery, it can be extinguished in the most stable and reliable way, generates less toxic gas, and reduces the risk of re-ignition.

Fourth, because the fire is extinguished using a rapid water tank-type suffocation fire extinguishing method, the amount of fire extinguishing water consumed to fill the water tank is significantly less than that used for extinguishing the fire using the sprinkler method, which is effective in saving energy, and a fire truck is dispatched when a fire is reported. Additional watering can be done in the water tank installed on site, and the burden of equipment and manpower due to fire suppression at the fire department can be reduced.

Fifth, it has the effect of reducing carbon emissions because it can be used multiple times after the waterstop is restored to its rising position.

Sixth, the open structure allows users to charge with confidence, and its own alarm and evacuation announcements make it easy for the driver and passengers to escape.

Seventh, it is easy to install without changing the base of the existing underground parking lot building.

Eighth, when the filling of the water tank is completed, when the temperature sensor installed on the inner wall of the water tank rises above a certain temperature, the water supply electronic valve is additionally opened to stabilize the temperature inside the water tank.

Figure 1 is a perspective view showing an automatic fire extinguishing system for an electric vehicle according to an embodiment of the present invention.
Figure 2 is a side view showing a side of an automatic fire extinguishing system for an electric vehicle according to an embodiment of the present invention.
Figure 3 is a perspective view showing a packing part in an automatic fire extinguishing system for an electric vehicle according to an embodiment of the present invention.
Figure 4 is a perspective view showing a drive module in an automatic fire extinguishing system for an electric vehicle according to an embodiment of the present invention.
Figure 5 is a side view showing another embodiment of a drive module in an automatic fire extinguishing system for an electric vehicle according to an embodiment of the present invention.
Figure 6 is a perspective view showing the detailed configuration of the drive module of Figure 5 in the automatic fire extinguishing system for an electric vehicle according to an embodiment of the present invention.
Figure 7 is a block diagram showing the control flow of the control unit in the automatic fire extinguishing system of an electric vehicle according to an embodiment of the present invention.
Figure 8 is a procedure diagram showing a method of automatic fire extinguishing of an electric vehicle using an automatic fire extinguishing system of an electric vehicle according to an embodiment of the present invention.
Figure 9 is a procedure diagram showing a detailed process of an automatic fire extinguishing method for an electric vehicle using an automatic fire extinguishing system for an electric vehicle according to an embodiment of the present invention.

Hereinafter, a preferred embodiment will be described with reference to the attached drawings so that the present invention can be understood in more detail.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. In order to facilitate overall understanding when describing the present invention, the same reference numerals are used for the same components in the drawings, and duplicate descriptions for the same components are omitted.

1 and 2, the automatic fire extinguishing system for an electric vehicle according to an embodiment of the present invention includes a frame unit 100, a water stopper plate 200, a drive module 300, and a sprinkler device 400. It may be configured to include a sensor unit 500 and a control unit 600.

First, the frame unit 100 is erected and installed around the parked electric vehicle 10, and includes the water stopper plate 200, the drive module 300, the sprinkler device 400, the sensor unit 500, and The control unit (600, control panel) is combined and serves as support.

In detail, the frame unit 100 may be configured to include pillar frames 110 erected around the electric automatic tooth, and connection frames 120 connecting the pillar frames 110 to each other, It may be formed into a hexahedral frame structure as shown corresponding to the shape of the electric vehicle 10.

The frame portion 100 is coupled to the pillar frame 110, shields the front of the electric vehicle 10, and includes a front plate 130 to which the sensor portion 500 and the control portion 600 are coupled. It can be configured.

The water stopper plate 200 is formed in the shape of a plate with a set height, and is installed to be movable in the vertical direction on the frame portion 100 to form a floor and a water tank when lowered, and the electric vehicle enters the formed water tank inside the water tank. (10) can be accepted.

In the drawing, the water stop plate 200 is positioned to stand in a vertical direction on both sides and the rear of the electric vehicle 10, and when lowered to the floor, it forms a square water tank together with the front plate 130 and the floor. Therefore, fire extinguishing water (water, etc.) can be accommodated inside.

Meanwhile, the water stopper plate 200 may be provided with a packing portion 210 to maintain airtightness to prevent leakage of fire extinguishing water when forming a water tank.

Referring to FIG. 3, the packing part 210 is provided at the lower end of the water stopper plate 200 so that it can be in close contact with the parking lot floor (ground) when lowered.

In detail, the packing part 210 may be coupled along the longitudinal direction of the lower surface of the water stopper plate 200 and may be made of a rubber or resin-based material that can increase adhesion to the floor.

As shown, the packing part 210 is formed in a semi-cylindrical shape with an open bottom, and when the water stopper plate 200 is lowered, the packing part 210 is double airtight with the floor through the inner first side and the outer second side. It can be configured to be maintained.

Meanwhile, the packing part 210 is formed so that the first side located inside the water stopper plate 200 is longer than the second side, so that when the stopper plate 200 is lowered, the first side follows the bottom surface of the water stopper plate 200. By bending and spreading to the inside of the water tank (200), not only the vertical wall through the water cutoff plate 200 but also the inner horizontal wall of the water cutoff plate 200 is formed, thereby more effectively preventing leakage of fire extinguishing water.

Furthermore, the present invention maintains airtightness between the water stopper plate 200 and the column frame 110 and guides the vertical movement of the waterstop plate 200 in a direction perpendicular to the column frame 110. A groove 111 is formed, and an insertion protrusion (not shown) that is slidably inserted into the guide groove 111 may be formed in the water stopper plate 200.

Accordingly, the water stopper plate 200 moves with the insertion protrusion inserted into the guide groove 111 when moving in the vertical direction, enabling more stable vertical movement, and the waterstop plate 200 and the pillar frame are formed in the form of grooves and protrusions. (110) are combined together to more effectively prevent leakage of fire extinguishing water when forming a water tank.

Meanwhile, the water stopper plate 200 has an airtight configuration to prevent leakage of fire extinguishing water when forming a water tank, and various embodiments other than the packing portion 210 described above are possible.

Although not shown as an example of this, the water stopper plate 200 is hinged to a first water plate disposed in a vertical direction and a lower end of the first water plate, so that when the first water plate is lowered to the bottom surface, A second water plate spreads to the inside of the water tank and contacts the floor, and each of the second water plate and the first water plate is provided so that the second water plate can be attached to the first water plate and folded or separated and unfolded. It may be configured to include attachment and detachment means.

Here, the detachment means is composed of an electromagnet that generates magnetic force by turning on and off according to a control signal from the control unit 600, and is turned off when descending, so that the second water plate is separated from the first water plate and is inside the water tank. It unfolds and turns on when rising, allowing the second water plate to be attached to the first water plate.

According to the above, when the second water plate is unfolded after the lowering of the water plate 200, the vertical cross-sectional shape of the first water plate and the second water plate is unfolded in an L-shape, so that the second water plate remains in the water tank despite the water pressure of the fire extinguishing water. Because it is supported in contact with the inner floor, the first water cutoff plate can be maintained in a vertical state without being pushed, allowing the shape of the water tank to be maintained despite the water pressure of the fire extinguishing water, and the gap between the bottom surface and the bottom of the water cutoff plate (200). Water leakage can be effectively prevented.

In addition, the water plate 200 has a first and second water plate attached to it during descent through a detachable means to prevent interference by reducing the flat cross-sectional area and to reduce the space occupied by allowing the second water plate to unfold after descent. there is.

The drive module 300 is installed on the frame unit 100 and serves to move the water shutoff plate 200 in the vertical direction according to a control signal.

The drive module 300 may be configured according to various embodiments, and in an embodiment of the present invention, it may be configured including a rope method and a worm gear method.

First, let's look at the drive module 300 according to the rope method with reference to FIG. 4.

First, the drive module 300 according to the rope method moves the water stop plate 200 while pulling it in the vertical direction through a rope, and includes a drive motor 311, a rotation shaft 312, and a rotation roller 313. It may be configured to include a connection member 314.

The driving motor 311, as a driving source, may be configured to rotate in both directions according to a control signal from the control unit 600. In the drawing, the drive motor 311 may be installed on the upper part of the frame unit 100 in consideration of the position of the rotation axis 312.

The rotation shaft 312 is axially connected to the drive motor 311 and rotates in both directions in response to the two-way rotation of the drive motor 311, and is disposed in a horizontal direction on the upper surface of the frame unit 100 to form a horizontal rotation axis. Rotates in both directions around the center.

As shown, the rotation axis 312 may be formed to have a set length from one end of the frame 100 to the other end of the frame 100 corresponding to the length of the water stop plate 200.

The rotating roller 313 is axially coupled to the rotating shaft 312 and rotates in conjunction with the rotation of the rotating shaft 312, and the connecting member 314 is connected to the outer peripheral surface in a cylindrical shape, so that the connecting member (314) is connected to the rotating shaft 312. 314) can be wound or unwound to the outer circumference.

As shown, a plurality of rotating rollers 313 are arranged to be spaced apart along the longitudinal direction of the rotating shaft 312, and a connecting member 314 is connected to each, so that the water stop plate 200 is connected at various positions to provide stability. It can be configured to move up and down.

Meanwhile, in the present invention, a guide roller is provided on one side of the rotating roller 313 to guide the connecting member 314 from the rotating roller 313 so that it is connected to the water stop plate 200.

One side of the connecting member 314 is fixedly coupled to the rotating roller 313 and is wound or unwound by the rotating roller 313 according to the two-way rotation of the rotating roller 313, and the other side is fixed to the lower water blocking plate. It is combined with (200) and serves to move the water stopper plate 200 up and down as it is wound or unwound by the rotating roller 313.

The connecting member 314 may be made of various materials, such as wire or rope, as long as it can achieve the above-mentioned purpose.

Meanwhile, the drive module 300 may be configured to move a plurality of water blocking plates 200 in conjunction with each other by a single drive motor 311.

For this purpose, the drive module 300 is installed on one upper side of the frame unit 100, is axially connected to the drive motor 311, rotates, and is arranged in a horizontal direction to rotate in both directions about the horizontal rotation axis. A first rotation shaft 312a to which the rotation roller 313 is coupled is installed on the rear upper surface of the frame portion 100, and is connected to the first rotation shaft 312a by a connection means 315 to form a first rotation shaft 312a. A second rotation shaft 312b, which receives the rotational force of 312a and rotates and is coupled to the rotation roller 313, is located on the other upper surface of the frame portion 100 so as to face the first rotation shaft 312a. A rotating roller 313 may be provided.

Accordingly, the connecting member 314 has one end coupled to the water blocking plate 200 on one side and the middle portion connected to the rotating roller 313 on one side connected to the first rotating shaft 312a and wound or unwound, and the other The side is coupled to the other side of the water stop plate 200 through the rotating roller 313 on the other side facing the water stop plate 200, and the water stop plate on both sides facing each other according to the rotation of the rotation roller 313 ( 200) may be configured to move in conjunction with each other.

In addition, the connecting member 314 has one end coupled to the second rotation shaft 312b and wound or unwound, and the other end is coupled to the front water cut plate 200 to tow and move the rear water cut plate 200. It can be configured as follows.

As shown, the connecting means 315 includes a first bevel gear 315a coupled to the end of the first rotation shaft 312a, and a second rotation shaft 312b adjacent to the first rotation shaft 312a. It may be configured to include a second bevel gear (315b) that is coupled to the end of and meshes with the first bevel gear (315a) and rotates by receiving the rotational force of the first bevel gear (315a).

Next, let's look at the drive module 300 according to the worm gear method.

Referring to FIG. 5, the drive module 300 includes a drive motor 321 that rotates in both directions according to a control signal from the control unit 600, and a drive screw that is axially connected to the drive motor 321 and rotates in both directions. 322) and a connection bracket that is screwed to the drive screw 322 and fixedly coupled to the water shutoff plate 200 to reciprocate the water shutoff plate 200 in the up and down direction according to the bidirectional rotation of the drive screw 322. It may be configured including (323).

Here, the driving screw 322 is erected in a vertical direction corresponding to the vertical movement direction of the water stop plate 200 and has threads formed on its outer peripheral surface.

The driving screw 322 can be erected and coupled to the inside of the column frame 110 as shown, and is provided on both sides of the water stop plate 200 to move the water stop plate 200 from both sides. there is.

Referring to FIG. 6, the connection bracket 323 includes a screw moving part 324 that is screwed to the inner peripheral surface of the driving screw 322 and moves back and forth in the vertical direction according to the bidirectional rotation of the driving screw 322. , It may be configured to include a fixed coupling part 325 that protrudes outside the screw moving part 324 and is fixedly coupled to the water cutoff plate 200.

Here, the fixed coupling portion 325, as shown, is provided on both sides of the screw moving portion 324 and is provided on both side water plates 200 to simultaneously pull the two water plates 200 and move in the vertical direction. You can do it.

The sprinkler device 400 is installed on the upper part of the frame 100, and when the water stopper plate 200 is lowered to form a water tank, it sprays fire extinguishing water so that the electric vehicle 10 can be sprayed with fire extinguishing water in the water tank. It can be soaked and allowed to settle.

The sprinkler device 400 is located at the top of the electric vehicle 10 and allows fire extinguishing water to be sprayed from the top of the electric vehicle 10, thereby effectively extinguishing the fire and filling the water tank, as well as effectively suppressing the smoke of toxic gas. there is.

The sprinkler device 400 includes a supply pump 430 that supplies the fire extinguishing water according to a control signal from the controller 600, and a supply pipe 410 connected to the supply pump 430 to receive the fire extinguishing water. It may be configured to include a plurality of injection devices 420 provided in the supply pipe 410 and spraying the fire extinguishing water downward.

Here, the supply pipe 410 may be arranged in a square closed loop shape corresponding to the planar shape of the electric vehicle 10, and may be provided with opening and closing valves that open and close the supply pipe 410 at the set position.

The sensor unit 500 serves to detect whether a fire has occurred in the electric vehicle 10, and in addition, detects the height of the water stop plate 200 so that it can be positioned at a set position when lowering and rising. You can.

Referring to FIG. 7, the sensor unit 500 includes a carbon monoxide detection sensor 510 that detects carbon monoxide and a heat detection sensor 520 that detects the ambient temperature, and the control unit 600 If the amount of carbon monoxide and temperature received from the carbon monoxide detection sensor 510 and the heat detection sensor 520 are greater than or equal to the reference value, it can be determined that a fire has occurred.

When it is determined from the information of the sensor unit 500 that a fire has occurred in the electric vehicle 10, the control unit 600 controls the drive module 300 to lower the water stop plate 200. , controls the spraying of fire extinguishing water from the sprinkler device 400 to control the electric vehicle 10 to be submerged in the fire extinguishing water contained in the water tank.

At this time, the sensor unit 500 includes a water level sensor 530 that measures the water level of the fire extinguishing water in the water tank when the fire extinguishing water is sprayed after the water stopper plate 200 is lowered to form a water tank, and the water tank It may include a temperature sensor 540 that measures the temperature of the fire extinguishing water.

Accordingly, the control unit 600 controls the sprinkler device 400 when the water level of the fire extinguishing water received from the water level sensor 530 corresponds to the set water level and the temperature of the fire extinguishing water in the water tank is below the set temperature. The supply of fire extinguishing water can be stopped.

Figure 7 is a block diagram showing the control flow of the control unit 600. Referring to the drawing, the control unit 600 determines whether a fire has occurred through information received from the carbon monoxide detection sensor 510 and the heat detection sensor 520, and operates the alarm unit 700 when it is determined that a fire has occurred. Then, the drive module 300 is driven and controlled to lower the water cutoff plate 200 to form a water tank.

When the water stopper plate 200 is lowered in this way to form a water tank, the control unit 600 controls the operation of the spray device 420 to spray fire extinguishing water to extinguish the fire, and uses the temperature sensor 540 to control the operation of the fire extinguishing water in the water tank. If the temperature of the fire extinguishing water is below the set temperature, it can be determined that the fire has been extinguished.

At this time, the control unit 600 can detect the water level of fire extinguishing water in the water tank through the water level sensor 530 and stop the operation of the spray device 420 when the set water level is reached. In addition, when the control unit 600 determines that fire suppression is complete, it can drain the fire extinguishing water, control the drive module 300 to raise the water stopper 200, and then switch to standby mode.

Below, we will look at an automatic fire extinguishing method for an electric vehicle using an automatic fire extinguishing system for an electric vehicle according to an embodiment of the present invention. First, since the automatic fire extinguishing system of the electric vehicle is the same as described above, a detailed description of its configuration will be omitted, and the automatic fire extinguishing method will be examined in detail below.

Referring to FIGS. 8 and 9, the control unit 600 can automatically determine whether a fire has occurred in the electric vehicle 10 through the information received from the sensor unit 500, and the carbon monoxide detection sensor 510 and If the amount of carbon monoxide and the temperature value received from the heat detection sensor 520 are greater than or equal to the reference value, it can be determined that a fire has occurred (S10).

Meanwhile, the control unit 600 not only automatically detects the occurrence of a fire through the sensor unit 500, but also recognizes that a fire has occurred when a worker manually moves to the fire mode in a manual mode and proceeds with the fire suppression process.

When a fire in the electric vehicle 10 is detected, the control unit 600 turns off the power of the charger of the electric vehicle 10 to stop charging the electric vehicle and sends an alarm including a fire alarm siren and a fire evacuation announcement. generates, and controls the drive module 300 to lower the water cutoff plate 200 so that the electric vehicle 10 is located in the water tank (S20).

When the water stop plate 200 is lowered to the set position in this way (lower limit operation of the water stop plate 200), the control unit 600 controls the drive module 300 to stop the descent of the water stop plate 200.

And the control unit 600 controls the sprinkler 400 to spray the fire-extinguishing water so that the electric vehicle 10 is immersed in the fire-fighting water in the water tank and settles (S30). In this case, the electric vehicle 10 is immersed in the fire extinguishing water, and the battery installed in the lower part of the electric vehicle 10 is submerged in the fire extinguishing water (water) filled in the water tank to cool the heat of the battery, and the internal power is discharged to provide additional energy. Thermal runaway phenomenon can be prevented.

Afterwards, the control unit 600 sprays fire extinguishing water until the water level in the water tank reaches a certain level, and according to the information received from the water level sensor 530, the upper limit of the water level of the water stopper plate 200 is exceeded, and the water tank is flooded. When the temperature of the fire extinguishing water is below the set temperature, it is judged that the fire in the electric vehicle (10) has been extinguished and the spraying of the fire extinguishing water can be stopped (water supply closed). If the temperature exceeds the set temperature, it is judged that the fire suppression is not complete and the fire extinguishing water is discharged. It can be judged that watering is necessary (opening the water supply).

Here, the set temperature of the fire extinguishing water at which it can be determined that the fire has been extinguished is preferably set to 25 degrees or lower, but this can be changed to a preferred embodiment.

According to the above, if the water level of the fire extinguishing water corresponds to the set water level and the temperature of the fire fighting water in the water tank is below the set temperature, the control unit 600 determines that the fire in the electric vehicle 10 has been extinguished, and When the end is confirmed, the sprinkler device 400 is controlled to stop supplying the fire extinguishing water, and after manual reset to non-fire, the fire extinguishing water in the water tank is drained (drain open), and the drive module 300 is controlled. Thus, the water stop plate 200 can be raised (S40), moved to its original position, and then switched to standby mode before fire.

Here, the control unit 600 can remove the drive module 300 to stop the rise of the water stopper plate 200 by checking the upper limit of the water stopper plate 200, and further stop and charge the fire evacuation and fire alarm sirens. In order to turn on the power to the system and prevent freezing and bursting of water supply equipment in the winter, the end valve of the fire extinguishing water supply pipe can be opened to discharge the remaining fire extinguishing water.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached patent claims.

10: electric vehicle 100: frame part
110: pillar frame 111: guide groove
120: Connection frame 130: Front plate
200: Water blocking plate 210: Packing part
300: Drive module 311,321: Drive motor
312: rotation axis 312a: first rotation axis
312b: Second rotating shaft 313: Rotating roller
314: connecting member 315: connecting means
315a: 1st bevel gear 315b: 2nd bevel gear
322: Drive screw 323: Connection bracket
324: screw moving part 325: fixed coupling part
400: Sprinkler device 410: Supply pipe
420: Injection device 430: Supply pump
500: Sensor unit 510: Carbon monoxide detection sensor
520: Heat sensor 530: Water level sensor
540: Temperature sensor 600: Control unit
700: Alarm unit

Claims (5)

A frame part erected and installed around the parked electric vehicle;
a water cutoff plate installed to be movable in the vertical direction on the frame and formed to have a set height to form a bottom surface and a water tank when lowered to accommodate the electric vehicle inside the water tank;
a driving module installed on the frame unit and moving the water shutoff plate in an upward and downward direction according to a control signal;
A sprinkler device installed on the upper part of the frame unit, which sprays fire extinguishing water when the water stopper plate descends to form a water tank, so that the electric vehicle is immersed in the fire extinguishing water in the water tank and settles.
The frame part,
Column frames erected around the electric vehicle in a hexahedral frame structure,
Connection frames connecting the pillar frames to each other,
An automatic fire extinguishing system for an electric vehicle, comprising a front plate coupled to the pillar frame and shielding the front of the electric vehicle.
According to claim 1,
The water stopper plate is,
An automatic fire extinguishing system for an electric vehicle, which is shaped like a plate and is positioned in a vertical direction on both sides and the rear of the electric vehicle, and is formed to form a square water tank through the front plate and the bottom when lowered.
According to claim 1,
The driving module is,
A drive motor that rotates in both directions according to the control signal from the control unit,
A drive screw that is axially connected to the drive motor and rotates in both directions, is erected in a vertical direction corresponding to the vertical movement direction of the water stop plate, and has a thread formed on an outer peripheral surface;
A screw moving part to which the driving screw is screwed to the inner circumferential surface and reciprocates in the up and down directions according to the bi-directional rotation of the driving screw, and a fixed coupling part protruding from the outside of the screw moving part and fixedly coupled to the water stop plate. , An automatic fire extinguishing system for an electric vehicle, comprising a connection bracket that reciprocates the water shield in the up and down directions according to the bidirectional rotation of the drive screw.
◈Claim 4 was abandoned upon payment of the setup registration fee.◈ In an automatic fire extinguishing method for an electric vehicle using the automatic fire extinguishing system for an electric vehicle according to any one of claims 1 to 3,
determining whether a fire has occurred in the electric vehicle through information received from the sensor unit;
When a fire in an electric vehicle is detected, controlling the drive module to lower the water cutoff plate so that the electric vehicle is located in the water tank;
When the water stopper lowers to the set position, controlling the sprinkler to spray the fire-fighting water so that the electric vehicle is submerged in the fire-fighting water in the water tank;
When it is determined that the fire in the electric vehicle has been extinguished, draining the fire extinguishing water in the water tank and controlling the drive module to raise the water stop plate.
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