Drill Lance Device for Suppressing Fire in Electric Vehicle Batteries

Abstract

The present invention relates to a fire suppression drill lance device for an electric vehicle battery, which can quickly suppress a fire by automatically punching a fire extinguishing hole at the lower part of the electric vehicle battery using water pressure and then injecting water when a fire occurs in the electric vehicle battery.

Description

Technical Field

[0001] The present invention relates to a drill lance device for extinguishing an electric vehicle battery fire. More specifically, when a fire occurs in an electric vehicle battery, it uses water pressure to automatically drill a fire extinguishing hole under the electric vehicle battery and then injects water, so as to quickly extinguish the fire. The present invention relates to a drill lance device for extinguishing an electric vehicle battery fire that enables this.

Background Art

[0002] Recently, under the situation where the number of registered electric vehicles in South Korea is increasing more and more, fires are frequent, and due to the characteristics of electric vehicle batteries, it is not easy to extinguish fires. Therefore, safety measures for electric vehicle fires have emerged as an urgent issue.

[0003] An electric vehicle arranges a battery storing a high-capacity energy on the bottom surface of the vehicle. When a fire starts in the battery due to an accident or various other reasons, the temperature of the heat generation point is very high and is in a form of high-density accumulation. Therefore, continuous heat conduction occurs and re-ignition takes place, making it difficult to extinguish the fire.

[0004] When a fire occurs in an electric vehicle and the fire spreads to the electric vehicle battery, the fire is difficult to extinguish and is likely to be re-ignited until it burns out. Therefore, there is a difficulty in that a large amount of fire extinguishing water must be continuously poured for a long time to extinguish the fire. The most effective fire extinguishing method to solve this problem is to lift the electric vehicle on fire with a crane and put it into a water tank filled with water for extinguishing. However, in order to put the electric vehicle into the water tank, it must be lifted using a crane or the like, and a large water tank must be installed (manufactured) on site. Therefore, this method is very difficult in reality.

[0005] Currently, while the ownership rate of electric vehicles is increasing rapidly, the number of electric vehicle fires is also showing an upward trend. Due to the specificity of electric vehicle fires, proactive measures are necessary, and there is a demand for technologies that can ensure the safety of firefighters and protect the golden time with effective fire suppression.

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention is made to solve the above-mentioned problems, and its purpose is to provide a drill lance device for extinguishing electric vehicle battery fires that can quickly suppress fires by automatically drilling a fire extinguishing hole at the bottom of an electric vehicle battery using water pressure and then injecting water after the hole is drilled.

Means for Solving the Problems

[0007] A drill lance device for extinguishing electric vehicle battery fires according to an embodiment of the present invention includes an adjustable-height trolley 110 that moves and positions at the bottom of the electric vehicle battery, and a drill module 120 that is installed below the upper plate of the adjustable-height trolley 110, pierces a hole in the electric vehicle battery by water injected from the outside in close contact with the electric vehicle battery, and injects water into the interior of the electric vehicle battery through the pierced hole.

[0008] In one embodiment, the adjustable-height trolley 110 can include a rod handle 111 that adjusts the height of the drill module 120 by rotating in the clockwise or counterclockwise direction.

[0009] In one embodiment, the drill module 120 may include a housing 121 into which water is injected, an impeller 122 provided in the housing 121 and rotated by the injected water to generate a rotational force, a hole cutter 123 connected to the impeller 122 and punching a fire hole for injecting water into the electric vehicle battery by the rotational force of the impeller 122 in a state of being in close contact with the electric vehicle battery, and an elastic body 124 provided below the hole cutter 123.

[0010] In one embodiment, the elastic force of the elastic body 124 can maintain the state in which the hole cutter 123 is in close contact with the guide channel 122.

[0011] In one embodiment, a compression fixing pin for maintaining the compressed state of the elastic body 124 is provided on one side of the hole cutter 123 before the height-adjustable carriage 110 is positioned below the electric vehicle battery. When the hole cutter 123 rotates by the rotational force of the impeller 122, the compression fixing pin is automatically separated from the hole cutter 123, so that the hole cutter 123 can be in close contact with the lower part of the electric vehicle battery.

[0012] In one embodiment, a drain hole 121a for discharging the water injected inside to the outside may be provided on the side surface of the housing 121 when the impeller 122 rotates.

[0013] In one embodiment, a fire extinguishing water discharge port for discharging the injected water may be provided at the end portion and side surface portion of the hole cutter 123.

[0014] In one embodiment, when the hole cutter 123 penetrates the lower part of the electric vehicle battery by the elastic force of the elastic body 124, the housing 121 closes the drain hole 121a, so that the water injected into the housing 121 is not discharged through the drain hole 121a, but is guided to be injected into the interior of the electric vehicle battery through the fire extinguishing hole. The housing 121 includes a slide plate 121b, a connecting rod 121c connected to the slide plate 121b, and an elastic body 121d provided with the connecting rod 121c. A locking step portion 121c-1 is formed on the connecting rod 121c, and a rotary trigger 125 for changing the opening and closing state of the slide plate 121b while rotating around the central rotation axis can be provided on the upper plate of the height-adjustable cart 110.

[0015] In one embodiment, a pushed transmission portion 125a that abuts against the side surface of the hole cutter 123 is provided at one end of the rotary trigger 125, and is engaged with the locking step portion 121c-1 at the other end of the rotary trigger 125. When the rotary trigger 125 rotates due to the pushing of the pushed transmission portion 125a, locking means that is removed from the locking step portion 121c-1 while moving in a direction opposite to the pushing direction can be provided.

[0016] In one embodiment, when the hole cutter 123 penetrates the lower part of the electric vehicle battery, one side of the hole cutter 123 pushes the pushed transmission portion 125a, and the rotary trigger 125 rotates around the rotation axis, so that the locking means 125b is removed from the locking step portion 121c-1, and at the same time, the slide plate 121b closes the drain hole 121a by the elastic force of the elastic body 121d.

Advantages of the Invention

[0017] According to one aspect of the present invention, when a fire occurs in an electric vehicle battery, by automatically punching a fire extinguishing hole in the lower part of the electric vehicle battery using water pressure and then injecting water, the fire can be quickly suppressed.

Brief Description of the Drawings

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Figure 8

Modes for Carrying Out the Invention

[0019] Hereinafter, preferred embodiments are presented to assist in understanding the present invention. However, the following embodiments are merely provided to make the present invention easier to understand, and the content of the present invention is not limited by these embodiments.

[0020] FIG. 1 is a diagram showing the configuration of a drill lance device 100 for extinguishing a fire in an electric vehicle battery according to an embodiment of the present invention, FIG. 2 is a diagram more specifically showing the height-adjustable carriage 110, FIG. 3 is a diagram more specifically showing the drill module 120, and FIG. 4 is a diagram showing a state in which the height of the drill lance device 100 for extinguishing a fire in an electric vehicle battery is adjusted by the height-adjustable carriage 110.

[0021] As shown in FIGS. 1 to 4, a drill lance device 100 for extinguishing a fire in an electric vehicle battery according to an embodiment of the present invention generally includes a height-adjustable carriage 110 and a drill module 120.

[0022] The height-adjustable carriage 110 is configured to be able to move the drill module 120 to a position below the electric vehicle battery, and a rod handle 111 is provided on one side. Therefore, when a fire breaks out in an electric vehicle, by the user operating the rod handle 111 to minimize the height of the height-adjustable carriage 110, the drill module 120 can be easily positioned below the electric vehicle battery.

[0023] Such a height-adjustable carriage 110 is configured to be able to separate the installation surface itself on which the drill module 120 is installed by a desired height from the bottom surface. At this time, by rotating a length-adjusting bolt bar that crosses a pair of horizontal bars located below the height-adjustable carriage 110, the pair of horizontal bars move away from or approach each other, and thereby the height of the mounting surface is adjusted up and down.

[0024] The drill module 120 is installed below the upper plate of the height-adjustable carriage 110 and is brought into close contact with the lower part of the electric vehicle battery by adjusting the height from below to above the electric vehicle battery by the height-adjustable carriage 110.

[0025] More specifically, the drill module 120 includes a housing 121 into which water is injected, an impeller 122 provided within the housing 121 that rotates by the injected water to generate a rotational force, a hole cutter 123 connected to the impeller 122 for drilling a fire extinguishing hole through which water is injected into the interior of the electric vehicle battery by the rotational force of the impeller 122, and an elastic body 124 provided below the hole cutter 123.

[0026] In particular, the drill module 120 drills a hole in the lower side of the electric vehicle battery with water injected from the outside, and sprays water into the interior of the electric vehicle battery through the drilled hole to suppress the fire.

[0027] Inside the housing 121, the impeller 122, the hole cutter 123, and the elastic body 124 are accommodated. Also, on one side of the housing 121, a water inlet for injecting water into the interior is provided, and the internal impeller 122 rotates by the water pressure of the water injected through the water inlet. The rotational force of the impeller 122 is directly transmitted to the hole cutter 123, and as a result, the hole cutter 123 drills the lower part of the electric vehicle battery by the water pressure. The water injected through the water inlet provided in the housing 121 rotates along the inner wall of the housing 121, and at this time, the impeller 122 is rotated. The impeller 122 rotates by the water pressure to generate a rotational force, and the rotational force rotates the hole cutter 123.

[0028] While rotating by the rotational force of the impeller 122, the hole cutter 123 drills a fire extinguishing hole in the lower part of the electric vehicle battery. Therefore, by injecting a large amount of water into the interior of the electric vehicle battery through the fire extinguishing hole, the fire can be suppressed more effectively.

[0029] At this time, the hole cutter 123 has a pipe shape with a hollow interior, and on the end and side surfaces, there are provided fire extinguishing water discharge ports for discharging the water (fire extinguishing water) injected through the water inlet into the interior of the electric vehicle battery through the drilled fire extinguishing holes.

[0030] When the hole cutter 123 is in close contact with the lower part of the electric vehicle battery, the elastic body 124 is compressed, and by always pushing the housing 121 upward through the elastic force, the hole cutter 123 can always be in close contact with the lower part of the electric vehicle battery.

[0031] With the hole cutter 123 in close contact with the lower surface of the electric vehicle battery, the impeller 122 rotates due to water pressure while the hole cutter 123 rotates, and holes are gradually drilled in the electric vehicle battery, so that the hole cutter 123 penetrates the lower part of the electric vehicle battery. This is possible because the elastic body 124 always pushes the housing 121 toward the electric vehicle battery by the elastic force.

[0032] Note that until the holes are drilled by the hole cutter 123, the water injected through the water injection port must be discharged to the outside. For this purpose, drain holes 121a can be formed on the side surface of the housing 121.

[0033] The drain holes 121a serve as a kind of drain port to discharge the injected water to the outside until the holes are drilled by the hole cutter 123. At this time, after the holes are drilled by the hole cutter 123, in order to prevent the water injected through the water injection port from being discharged to the outside through the drain holes 121a, a slide plate 121b is provided on one side of the housing 121. Next, this will be described more specifically.

[0034] FIG. 5 is a diagram showing the rotary trigger 125 installed on the upper plate of the height-adjustable cart 110, FIG. 6 is a diagram showing the state in which the slide plate 121b, the connecting rod 121c, and the elastic body 121d are connected with the upper plate of the height-adjustable cart 110 removed, and FIG. 7 is a diagram showing the open / closed state of the slide plate 121b.

[0035] As shown in FIGS. 5 to 7, inside the housing 121, there are provided a connecting rod 121c connected to the slide plate 121b and an elastic body 121d provided on the connecting rod 121c. On the upper plate of the height-adjustable trolley 110, a rotary trigger 125 is provided which changes the opening and closing state of the slide plate 121b while rotating about the central rotation axis. Basically, one side of the slide plate 121b and the connecting rod 121c are connected to each other. When the connecting rod 121c rises upward, the slide plate 121b rises to open the drain hole 121a. When the connecting rod 121c descends downward, the slide plate 121b descends to close the drain hole 121a.

[0036] At this time, the lower end of the connecting rod 121c is connected to the slide plate 121b, and the upper end is connected to the lower surface of the upper plate of the height-adjustable trolley 110. That is, the housing 121 in the present invention has a structure in which it is closely coupled to the lower surface of the upper plate of the height-adjustable trolley 110 with a number of bolts, and the upper end of the connecting rod 121c corresponds to a structure in which a part thereof is exposed outside through the upper plate of the height-adjustable trolley 110. In the middle of the connecting rod 121c thus exposed, a locking step portion 121c-1 with a small diameter is formed.

[0037] In a state where the drain hole 121a is opened by the upward movement of the slide plate 121b, the locking step portion 121c-1 of the connecting rod 121c rises upward and is exposed above the upper plate of the height-adjustable trolley 110. At this time, one side of the rotary trigger 125 is locked to the locking step portion 121c-1 to maintain the current state of the slide plate 121b (the state where the drain hole 121a is opened).

[0038] More specifically, the rotary trigger 125 is connected by a rotation axis to the upper plate of the height-adjustable trolley 110 and rotates in the clockwise or counterclockwise direction about the central rotation axis.

[0039] At this time, a pushed transmission part 125a is provided at one end part of the rotary trigger 125. When the hole cutter 123 gradually rises, the pushed transmission part 125a abuts against the side surface of the hole cutter 123 and is pushed backward. In this case, the rotary trigger 125 rotates by the rotary shaft, and the other end part of the rotary trigger 125 rotates in the direction opposite to the pushed direction. A locking means 125b that can be engaged with the locking step part 121c-1 of the connecting rod 121c described above is provided at the other end part of the rotary trigger 125.

[0040] That is, in a state where the slide plate 121b rises upward to open the drain hole 121a, the locking step part 121c-1 of the connecting rod 121c rises above the upper plate of the height-adjustable carriage 110 and is locked to the locking means 125b. As long as the locking means 125b is not removed from the locking step part 121c-1 in this state, the slide plate 121b maintains the state of opening the drain hole 121a.

[0041] At present, an elastic body 121d is provided on the connecting rod 121c. When the slide plate 121b rises upward by the connecting rod 121c, the elastic body 121d has a compressive force while being compressed by the part connecting the slide plate 121b and the connecting rod 121c and the upper plate of the height-adjustable carriage 110.

[0042] In the current state, when the hole cutter 123 rises, the pushed transmission part 125a that abuts against the side surface of the hole cutter 123 is gradually pushed backward. For this reason, the diameter of the side surface of the hole cutter 123 has a structure that gradually expands. Therefore, when the hole cutter 123 gradually rises, as the diameter of the side surface gradually expands, the pushed transmission part 125a is gradually pushed backward, whereby the rotary trigger 125 itself rotates around the rotary shaft.

[0043] By such rotation, the locking means 125b is removed from the locking step portion 121c-1, and the elastic body 121d compressed by the above-described compressive force presses the portion connecting the slide plate 121b and the connecting rod 121c to each other, so that the slide plate 121b descends downward. Along with this, the drain hole 121a is closed.

[0044] Therefore, when the hole cutter 123 completely perforates the lower part of the electric vehicle battery, the water injected into the housing 121 can be prevented from being discharged through the drain hole 121a by the slide plate 121b closing the drain hole 121b, and can be guided to be injected into the inside of the electric vehicle battery through the fire extinguishing hole.

[0045] Next, the process of suppressing a fire in an electric vehicle battery by the above-described drill lance device 100 for suppressing a fire in an electric vehicle battery will be described.

[0046] FIG. 8 is a diagram sequentially showing the process of suppressing a fire in an electric vehicle battery by the drill lance device 100 for suppressing a fire in an electric vehicle battery according to an embodiment of the present invention.

[0047] As shown in FIG. 8, first, the drill lance device 100 for suppressing a fire in an electric vehicle battery is placed on the floor (S801), and the rod handle 111 is connected (S802).

[0048] Next, a hose for injecting water into the housing 121 is connected (S803). After the height-adjustable carriage 110 is moved to the lower part of the electric vehicle battery where a fire has occurred (S804), the rod handle 111 is rotated to increase the height of the height-adjustable carriage 110 to fix the position (S805).

[0049] Next, as water is injected into the housing 121, the impeller 122 rotates while the hole cutter 123 also rotates together, and thereby the fire extinguishing hole in the lower part of the electric vehicle battery starts to be drilled (S806).

[0050] During the process of drilling the fire extinguishing hole, due to the elastic force of the elastic body 124, the hole cutter 123 is continuously pushed upward. After the drilling is completed, one side end of the rotary trigger 125 provided on the upper plate of the height-adjustable trolley 110 abuts against the side surface of the hole cutter 123 that gradually rises and is gradually pushed backward. In this case, the rotary trigger 125 rotates around the rotation axis, and the other side end of the rotary trigger 125 is pulled in the direction opposite to the pushing direction. Accordingly, the slide plate 121b descends to block the drain hole 121a, thereby inducing the injection of water into the battery of the electric vehicle through the fire extinguishing hole. Furthermore, as water is injected into the electric vehicle battery through the fire extinguishing hole, the fire begins to be suppressed. After the fire suppression is completed, the supply of the injected water is interrupted, the rod handle 111 is rotated in the opposite direction to lower the height of the height-adjustable trolley 110, and after removing it from the fire extinguishing hole, it is taken out from under the electric vehicle.

[0051] As described above, according to the present invention, when a fire occurs in an electric vehicle battery, it is possible to automatically drill a fire extinguishing hole at the lower part of the electric vehicle battery using water pressure and then inject water to quickly suppress the fire. In particular, when connecting multiple units (2 - 3 units) simultaneously, the fire suppression effect can be further increased.

[0052] As described above, the preferred embodiments of the present invention have been described. However, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the spirit and scope of the present invention described in the following claims.

Industrial Applicability

[0053] According to the present invention, when a fire occurs in an electric vehicle battery, the fire can be quickly suppressed. The present invention is a technology that can realize its practical and economic value by being widely used in the fields of electric vehicles and the fire protection industry.

Explanation of Reference Numerals

[0054] 100 Drill Lance Device for Suppressing Fire in Electric Vehicle Battery 110 Height-adjustable trolley 111 Rod handle 120 Drill module 121 Housing 121a Drain hole 121b Slide plate 121c Connecting rod 121c-1 Locking step portion 121d Elastic body 122 Impeller 123 Hole cutter 124 Elastic body 125 Rotary trigger 125a Pressed transmission part 125b Locking means

Claims

1. An adjustable trolley (110) that moves to and is positioned at the bottom of an electric vehicle battery, and A drill module (120) installed below the upper plate of the adjustable trolley (110), which pierces holes in the electric vehicle battery by water injected from the outside in close contact with the electric vehicle battery, and sprays water into the interior of the electric vehicle battery through the pierced holes. A drill lance device for suppressing fire in an electric vehicle battery, characterized by comprising:

2. The adjustable trolley (110) A drill lance device for suppressing fire in an electric vehicle battery according to claim 1, characterized by including a rod handle (111) for adjusting the height of the drill module (120) by rotation in the clockwise or counterclockwise direction.

3. The drill module (120) A housing (121) provided below the upper plate and filled with water inside; An impeller (122) provided in the housing (121) and rotated by the injected water to generate a rotational force; A hole cutter (123) connected to the impeller (122) and punching a fire extinguishing hole for injecting water into the interior of the electric vehicle battery by the rotational force of the impeller (122) in a state of being in close contact with the electric vehicle battery; An elastic body (124) provided below the hole cutter (123). A drill lance device for suppressing fire in an electric vehicle battery according to claim 1, characterized by comprising:

4. A drill lance device for suppressing fire in an electric vehicle battery according to claim 3, characterized in that the elastic force of the elastic body (124) maintains the state in which the hole cutter (123) is in close contact with the guide channel (122).

5. On one side of the hole cutter (123), A compression fixing pin is provided to maintain the compressed state of the elastic body (124) before the adjustable trolley (110) is positioned at the bottom of the electric vehicle battery; When the hole cutter (123) rotates by the rotational force of the impeller (122), the compression fixing pin is automatically separated from the hole cutter (123), so that the hole cutter (123) is in close contact with the bottom of the electric vehicle battery. A drill lance device for suppressing fire in an electric vehicle battery according to claim 3.

6. The fire suppression drill lance device for an electric vehicle battery according to claim 3, characterized in that fire extinguishing water discharge ports for discharging the injected water are provided at the end and side surfaces of the hole cutter (123).

7. The fire suppression drill lance device for an electric vehicle battery according to claim 3, characterized in that a drain hole (121a) for discharging the water injected inside to the outside is provided on the side surface of the housing (121) when the impeller (122) rotates.

8. The housing (121) is When the hole cutter (123) penetrates the lower part of the electric vehicle battery by the elastic force of the elastic body (124), a slide plate (121b) that closes the drain hole (121a) to guide the water injected into the housing (121) not to be discharged through the drain hole (121a) but to be injected into the inside of the electric vehicle battery through the fire extinguishing hole, A connecting rod (121c) connected to the slide plate (121b), And an elastic body (121d) provided with the connecting rod (121c). A locking step portion (121c-1) is formed on the connecting rod (121c). On the upper plate of the height-adjustable trolley (110), The fire suppression drill lance device for an electric vehicle battery according to claim 7, characterized in that a rotary trigger (125) is provided for changing the opening and closing state of the slide plate (121b) while rotating around the central rotation axis.

9. A pushed transmission portion (125a) that contacts the side surface of the hole cutter (123) is provided at one end of the rotary trigger (125). The fire suppression drill lance device for an electric vehicle battery according to claim 8, characterized in that a locking means (125b) that is engaged with the locking step portion (121c-1) and is removed from the locking step portion (121c-1) while moving in a direction opposite to the pushed direction when the rotary trigger (125) rotates by the pushing of the pushed transmission portion (125a) is provided at the other end of the rotary trigger (125).

10. When the hole cutter (123) penetrates the lower part of the electric vehicle battery, one side of the hole cutter (123) pushes the pushed transmission part (125a), and the rotation trigger (125) rotates around the rotation axis, so that the locking means (125b) is removed from the locking step part (121c-1), and the elastic force of the elastic body (121d) closes the drain hole (121a) with the slide plate (121b). The drill lance device for suppressing a fire of an electric vehicle battery according to claim 9, characterized in that.

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