Drill lance device for extinguishing fire in electric vehicle battery

Abstract

Proposed is a drill lance apparatus for suppressing an electric vehicle battery fire, the drill lance apparatus being capable of rapidly suppressing the fire by spraying water after automatically drilling a fire extinguishing hole in a lower portion of an electric vehicle battery by using the hydraulic pressure when an electric vehicle battery fire occurs.

Description

Technical Field

[0001] The present disclosure relates to a drill lance apparatus for suppressing an electric vehicle battery fire. More particularly, the present disclosure relates to a drill lance apparatus for suppressing an electric vehicle battery fire, the drill lance apparatus being capable of rapidly suppressing the fire by spraying water after automatically drilling a fire extinguishing hole in a lower portion of an electric vehicle battery by using the hydraulic pressure when an electric vehicle battery fire occurs.Background Art

[0002] Recently, in a situation in which the number of registered electric vehicles in Korea is gradually increasing, it is becoming an urgent problem to prepare safety measures in response to electric vehicle fires which frequently occur and which are not easily extinguished due to the characteristics of electric vehicle batteries.

[0003] In an electric vehicle, a battery storing a high capacity of energy is disposed at a lower surface of the electric vehicle. When a battery ignites due to an accident or various other reasons, the temperature of the heating point is very high and a continuous thermal transfer due to a high-density integrated form occurs, so that it is difficult to suppress the fire.

[0004] When a fire occurs in an electric vehicle and an electric vehicle battery catches the fire, the fire of the electric vehicle battery does not extinguish well and is easily reignited until the electric vehicle battery is completely burned. Therefore, there is a difficulty in suppressing the fire since a large amount of fire extinguishing water is required to be poured for a long time. The most effective fire suppression method to solve this problem is to lift an electric vehicle in which a fire occurs by a crane and put the electric vehicle into a water tank filled with water. However, in order to put the electric vehicle into the water tank, the electric vehicle is required to be lifted by using the crane, and a large water tank is required to be mounted (manufactured) on the site, so that this method is very difficult in reality.

[0005] Currently, as the electric vehicle ownership rate is rapidly increasing, fire of electric vehicles is also increasing at the same time. Therefore, an active response method is required due to the specificity of the electric vehicle fire, and a technology capable of securing the safety of firefighters and protecting the golden time by effective fire suppression is required.Disclosure Technical Problem

[0006] Accordingly, the present disclosure has been made keeping in mind the above problems occurring in the related art, and an objective of the present disclosure is to provide a drill lance apparatus for suppressing an electric vehicle battery fire, the drill lance apparatus being capable of rapidly suppressing the fire by spraying water after automatically drilling a fire extinguishing hole in a lower portion of an electric vehicle battery by using the hydraulic pressure when the electric vehicle battery fire occurs.Technical Solution

[0007] In order to achieve the above objective, according to an embodiment of the present disclosure, there is provided a drill lance apparatus for suppressing an electric vehicle battery fire, the drill lance apparatus including: a height adjustable cart 110 configured to be moved and positioned below an electric vehicle battery; and a drill module 120 mounted on a lower side of an upper plate of the height adjustable cart 110, the drill module 120 being brought into close contact with the electric vehicle battery and being configured to drill a hole into the electric vehicle battery by using water injected from outside, and the drill module 120 being configured to spray water into an inside of the electric vehicle battery through the drilled hole.

[0008] In an embodiment, the height adjustable cart 110 may include a pole handle 111 configured to adjust a height of the drill module 120 by being rotated in a clockwise direction or a counterclockwise direction.

[0009] In an embodiment, the drill module 120 may include: a housing 121 which is provided on the lower side of the upper plate and in which water is injected; an impeller 122 provided in the housing 121 and configured to generate a rotational force by being rotated by water that is injected; a hole cutter 123 connected to the impeller 122 and configured to drill a fire extinguishing hole, by the rotational force of the impeller 122, for injecting water into the inside of the electric vehicle battery while the hole cutter 123 is in a state in which the hole cutter 123 is brought into close contact with the electric vehicle battery; and an elastic body 124 provided on a lower portion of the hole cutter 123.

[0010] In an embodiment, a state in which the hole cutter 123 is brought into close contact with the electric vehicle battery may be maintained by an elastic force of the elastic body 124.

[0011] In an embodiment, a first side of the hole cutter 123 may be provided with a compression fixing pin configured to maintain a state in which the elastic body 124 is compressed before the height adjustable cart 110 is positioned below the electric vehicle battery, and when the hole cutter 123 is rotated by the rotational force of the impeller 122, the compression fixing pin may be automatically separated from the hole cutter 123, so that the hole cutter 123 may be brought into close contact with a lower portion of the electric vehicle battery.

[0012] In an embodiment, a drain hole 121a for discharging water injected into the inside of the housing 121 to an outside while the impeller 122 is rotated may be provided on a side surface of the housing 121.

[0013] In an embodiment, a fire extinguishing water outlet port for discharging water that is injected may be provided on a distal end portion and a side surface portion of the hole cutter 123.

[0014] In an embodiment, the housing 121 may include: a slide plate 121b configured to block the drain hole 121a when the hole cutter 123 penetrates a lower portion of the electric vehicle battery by the elastic force of the elastic body 124, thereby inducing water injected into the housing 121 to be injected into the inside of the electric vehicle battery without being discharged through the drain hole 121a; a connection rod 121c connected to the slide plate 121b; and an elastic body 121d provided on the connection rod 121c. Furthermore, a locking step 121c-1 may be formed on the connection rod 121c, and a rotation trigger 125 configured to change an opening and closing state of the slide plate 121b by being rotated around a rotary shaft of a center portion may be provided on the upper plate of the height adjustable cart 110.

[0015] In an embodiment, a push transmission part 125a in contact with a side surface of the hole cutter 123 may be provided on a first distal end portion of the rotation trigger 125, and a locking means 125b configured to be locked on and coupled to the locking step 121c-1 may be provided on a second distal end portion of the rotation trigger 125, the locking means 125b being configured such that when the rotation trigger 125 is rotated by push of the push transmission part 125a, the locking means 125b is moved in a direction opposite to the push and then is separated from the locking step 121c-1.

[0016] In addition, when the hole cutter 123 penetrates the lower portion of the electric vehicle battery, a first side of the hole cutter 123 may push the push transmission part 125a, and the rotation trigger 125 may be rotated around the rotary shaft and the locking means 125b may be separated from the locking step 121c-1, so that the slide plate 121b may close the drain hole 121a by an elastic force of the elastic body 121d.Advantageous Effects

[0017] According to an aspect of the present disclosure, the present disclosure has an advantage in which a fire is capable of being rapidly suppressed by spraying water after automatically drilling a fire extinguishing hole in the lower portion of the electric vehicle battery by using the hydraulic pressure when an electric vehicle fire occurs.Description of Drawings

[0018] FIG. 1 is a view illustrating a configuration of a drill lance apparatus 100 for suppressing an electric vehicle battery fire according to an embodiment of the present disclosure. FIG. 2 is a view illustrating a height adjustable cart 110 in more detail. FIG. 3 is a view illustrating a drill module 120 in more detail. FIG. 4 is a view illustrating a state in which the height of the drill lance apparatus 100 for suppressing an electric vehicle battery fire is adjusted through the height adjustable cart 110. FIG. 5 is a view illustrating a rotation trigger 125 mounted on an upper plate of the height adjustable cart 110. FIG. 6 is a view illustrating a state in which a slide plate 121b, a connection rod 121c, and an elastic body 121d are connected to each other while the upper plate of the height adjustable cart 110 is removed. FIG. 7 is a view illustrating an opening and closing state of the slide plate 121b. FIG. 8 is a view sequentially illustrating a process of suppressing an electric vehicle battery fire through the drill lance apparatus 100 for suppressing electric vehicle battery fire according to an embodiment of the present disclosure. <Description of Reference Numerals>

[0019] 100:Drill lance apparatus for suppressing electric vehicle battery fire 110:Height adjustable cart 111:Pole handle 120:Drill module 121:Housing 121a:Drain hole 121b:Slide plate 121c:Connection rod 121c-1:Locking step 121d:Elastic body 122:Impeller 123:Hole cutter 124:Elastic body 125:Rotation trigger 125a:Push transmission part 125b:Locking means Mode for Invention

[0020] Hereinafter, an exemplary embodiment will be described for the purpose of helping to understand the present disclosure. However, following embodiments are provided so as to facilitate understanding of the present disclosure, and the description of the present disclosure is not limited by the following embodiments.

[0021] FIG. 1 is a view illustrating a configuration of a drill lance apparatus 100 for suppressing an electric vehicle battery fire according to an embodiment of the present disclosure, FIG. 2 is a view illustrating a height adjustable cart 110 in more detail, FIG. 3 is a view illustrating a drill module 120 in more detail, and FIG. 4 is a view illustrating a state in which the height of the drill lance apparatus 100 for suppressing an electric vehicle battery fire is adjusted through the height adjustable cart 110.

[0022] Referring to FIG. 1 to FIG. 4, the drill lance apparatus 100 for suppressing an electric vehicle battery fire according to an embodiment of the present disclosure may include the height adjustable cart 110 and the drill module 120.

[0023] The height adjustable cart 110 is configured such that the drill module 120 is capable of being moved to a position below an electric vehicle battery, and a pole handle 111 is provided on a first side of the height adjustable cart 110. Therefore, when a fire occurs in an electric vehicle, a user operates the pole handle 111 so that the height of the height adjustable cart 110 is lowered as much as possible, so that the drill module 120 is capable of being easily positioned below the electric vehicle battery.

[0024] Such a height adjustable cart 110 is configured such that a mounting surface on which the drill module 120 is mounted is capable of being separated from a floor surface by a desired height. At this time, as the pole handle 111 rotates a length adjustment bolt bar that crosses a pair of horizontal bars positioned at a lower side of the height adjustable cart 110, the pair of horizontal bars is moved away from each other or is moved close to each other, so that the height of a seating surface is adjusted vertically.

[0025] The drill module 120 is mounted on a lower side of an upper plate of the height adjustable cart 110, and is brought into close contact with a lower side of the electric vehicle battery as the height of the drill module 120 is adjusted upward from the lower side of the electric vehicle battery through the height adjustable cart 110.

[0026] More specifically, the drill module 120 includes a housing 121 in which water is injected, an impeller 122 provided in the housing 121 and is configured to generate a rotational force by being rotated by water that is injected, a hole cutter 123 connected to the impeller 122 and configured to drill a fire extinguishing hole, by the rotational force of the impeller 122, for injecting water into the inside of the electric vehicle battery, and an elastic body 124 provided on a lower portion of the hole cutter 123.

[0027] Particularly, the drill module 120 drills a hole on the lower side of the electric vehicle battery by water injected from the outside, and sprays water into the inside of the electric vehicle battery through the drilled hole so that a fire is extinguished.

[0028] The impeller 122, the hole cutter 123, and the elastic body 124 are accommodated inside the housing 121. In addition, a water inlet port for injecting water into the inside of the housing 121 is provided on a first side of the housing 121, and the impeller 122 inside the housing 121 is rotated by the hydraulic pressure of water injected through the water inlet port. The rotational force of the impeller 122 is directly transferred to the hole cutter 123 and, as a result, the hole cutter 123 drills the lower portion of the electric vehicle battery by the hydraulic pressure. Water injected through the water inlet port provided in the housing 121 is rotated along the inner wall of the housing 121 and, at this time, the impeller 122 is rotated. The impeller 122 generates the rotational force by being rotated by the hydraulic pressure, and the hole cutter 123 is rotated by the rotational force.

[0029] The hole cutter 123 is rotated by the rotational force of the impeller 122, and drills the fire extinguishing hole in the lower portion of the electric vehicle battery. Therefore, a large amount of water is injected into the inside of the electric vehicle battery through the fire extinguishing hole, so that the fire may be more effectively suppressed.

[0030] At this time, the hole cutter 123 has a pipe shape having a hollow inner portion, and a distal end portion and a side surface of the hole cutter 123 have fire extinguishing water outlet ports for discharging water (fire extinguishing water) injected through the water inlet port to the inside of the electric vehicle battery by passing through the drilled fire extinguishing hole.

[0031] The elastic body 124 is compressed when the hole cutter 123 is brought into close contact with the lower portion of the electric vehicle battery, and is configured such that the housing 121 is always directed upward by the elastic force, thereby allowing the hole cutter 123 to be always in close contact with the lower portion of the electric vehicle battery.

[0032] In a state in which the hole cutter 123 is in close contact with the lower surface of the electric vehicle battery, the impeller 122 is rotated by the hydraulic pressure and the hole cutter 123 is rotated, and the hole cutter 123 gradually drills the hole in the electric vehicle battery, so that the hole cutter 123 penetrates the lower portion 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.

[0033] Meanwhile, until the hole is drilled by the hole cutter 123, water injected through the water inlet port is required to be discharged to the outside. To this end, a drain hole 121a may be formed on a side surface of the housing 121.

[0034] The drain hole 121a serves as a type of water outlet port that allows the injected water to be discharged to the outside until the hole is drilled by the hole cutter 123. At this time, in order to prevent water injected through the water inlet port from being discharged to the drain hole 121a after the hole is drilled by the hole cutter 123, a slide plate 121b is provided on the first side of the housing 121. This is described in more detail as follows.

[0035] FIG. 5 is a view illustrating a rotation trigger 125 mounted on the upper plate of the height adjustable cart 110, FIG. 6 is a view illustrating a state in which the slide plate 121b, a connection rod 121c, and an elastic body 121d are connected to each other while the upper plate of the height adjustable cart 110 is removed, and FIG. 7 is a view illustrating an opening and closing state of the slide plate 121b.

[0036] Referring to FIG. 5 to FIG. 7, the connection rod 121c that is connected to the slide plate 121b and the elastic body 121d that is provided on the connection rod 121c are provided inside the housing 121, and the rotation trigger 125 configured to change the opening and closing state of the slide plate 121b by being rotated around a rotary shaft of a center portion is provided on the upper plate of the height adjustable cart 110. Basically, the slide plate 121b is connected to a first side of the connection rod 121c. Therefore, when the connection rod 121c is moved upward, the slide plate 121b is moved upward, so that the drain hole 121a is opened. Furthermore, when the connection rod 121c is moved downward, the slide plate 121b is moved downward, so that the drain hole 121a is closed.

[0037] At this time, a lower distal end portion of the connection rod 121c is connected to the slide plate 121b, and an upper distal end portion of the connection rod 121c is connected to a lower surface of the upper plate of the height adjustable cart 110. That is, in the present disclosure, the housing 121 has a structure in which the housing 121 is closely coupled to the lower surface of the upper plate of the height adjustable cart 110 by a plurality of bolts, and the upper distal end portion of the connection rod 121c has a structure in which a part of the upper distal end portion of the connection rod 121c passes through the upper plate of the height adjustable cart 110 and is exposed to the outside. On the middle of the connection rod 121c that is exposed, a locking step 121c-1 having a narrow diameter is formed.

[0038] In a state in which the slide plate 121b is moved upward and the drain hole 121a is opened, the locking step 121c-1 of the connection rod 121c is moved upward higher than the upper plate of the height adjustable cart 110 and then is exposed. At this time, as a first side of the rotation trigger 125 is locked on the locking step 121c-1, the current state (the state in which the drain hole 121a is opened) of the slide plate 121b is maintained.

[0039] More specifically, since the rotation trigger 125 is connected to the upper plate of the height adjustable cart 110 through the rotary shaft, the rotation trigger 125 is rotated in a clockwise direction or a counterclockwise direction around the rotary shaft of the center portion.

[0040] At this time, a push transmission part 125a is provided on a first distal end portion of the rotation trigger 125. When the hole cutter 123 is gradually moved upward, the push transmission part 125a is in contact with the side surface of the hole cutter 123 and is pushed backward. In this situation, the rotation trigger 125 is rotated by the rotary shaft, and a second distal end of the rotation trigger 125 is moved in a direction opposite to the push. A locking means 125b configured to be locked on the locking step 121c-1 of the connection rod 121c described above is provided on the second distal end portion of the rotation trigger 125.

[0041] That is, when the slide plate 121b is moved upward and the drain hole 121a is opened, the locking step 121c-1 of the connection rod 121c is moved upward above the upper plate of the height adjustable cart 110, and the locking step 121c-1 is locked on the locking means 125b. In this state, as long as the locking means 125b is not separated from the locking step 121c-1, the slide plate 121b maintains the state in which the drain hole 121a is opened.

[0042] In the current state, the elastic body 121d is provided on the connection rod 121c. When the slide plate 121b is moved upward by the connection rod 121c, the elastic body 121d is compressed by a portion connecting the slide plate 121b to the connection rod 121c and the upper plate of the height adjustable cart 110, so that the elastic body 121d has a compression force.

[0043] In the current state, when the hole cutter 123 is moved upward, the push transmission part 125a that is in contact with the side surface of the hole cutter 123 is gradually pushed backward. To this end, the hole cutter 123 has a structure in which the diameter of the side surface of the hole cutter 123 is gradually widened. Therefore, when the hole cutter 123 is gradually moved upward, the diameter of the side surface of the hole cutter 123 is gradually widened, and the push transmission part 125a is gradually pushed backward, so that the rotation trigger 125 is rotated around the rotary shaft.

[0044] By such a rotation, the locking means 125b is separated from the locking step 121c-1. Furthermore, as the elastic body 121d that was compressed pushes the portion connecting the slide plate 121b to the connection rod 121c by the compression force, the slide plate 121b is moved downward, so that the drain hole 121a is closed.

[0045] Therefore, when the hole cutter 123 completely drills the lower portion of the electric vehicle battery, the slide plate 121b blocks the drain hole 121a, so that the water injected into the housing 121 is not discharged trough the drain hole 121a and is induced to be injected to the inside of the electric vehicle battery through the fire extinguishing hole.

[0046] Next, a process of suppressing an electric vehicle battery fire through the drill lance apparatus 100 for suppressing an electric vehicle battery fire will be described.

[0047] FIG. 8 is a view sequentially illustrating a process of suppressing an electric vehicle battery fire through the drill lance apparatus 100 for suppressing electric vehicle battery fire according to an embodiment of the present disclosure.

[0048] Referring to FIG. 8, first, the drill lance apparatus 100 for suppressing an electric vehicle battery fire is seated on the floor (S801), and the pole handle 111 is connected to the drill lance apparatus 100 for suppressing an electric vehicle battery fire (S802).

[0049] Next, a hose for injecting water into the housing 121 is connected (S803), the height adjustable cart 110 is moved and positioned below the electric vehicle battery in which a fire occurs (S804), and then the height of the height adjustable cart 110 is raised by rotating the pole handle 111 and the position of the height adjustable cart 110 is fixed (S805).

[0050] Next, as water is injected into the inside of the housing 121, the impeller 122 is rotated, and the hole cutter 123 is also rotated, so that drilling the lower portion of the electric vehicle battery so as to form the fire extinguishing hole is started (S806).

[0051] During the drilling of the fire extinguishing hole, the hole cutter 123 is continuously pushed upward by the elastic force of the elastic body 124. Furthermore, when the drilling is finished, the first distal end portion of the rotation trigger 125 provided on the upper plate of the height adjustable cart 110 is in contact with the side surface of the hole cutter 123 and is gradually pushed backward. In this situation, the rotation trigger 125 is rotated by the rotary shaft and the second distal end portion of the rotation trigger 125 is pulled in the direction opposite to the push, and the slide plate 121b is moved downward and blocks the drain hole 121a, so that water is induced to be injected to the inside of the electric vehicle battery through the fire extinguishing hole. In addition, as water is injected into the inside of the electric vehicle battery through the fire extinguishing hole, fire suppression is started. After the fire suppression is completed, the supply of water to be injected is stopped, the pole handle 111 is rotated in an opposite direction such that the height of the height adjustable cart 110 is lowered, the height adjustable cart 110 is separated from the fire extinguishing hole, and the height adjustable cart 110 is pulled out from the lower portion of the electric vehicle.

[0052] As described above, according to the present disclosure, when an electric vehicle battery fire occurs, the fire is capable of being rapidly suppressed by spraying water after automatically drilling the fire extinguishing hole in the lower portion of the electric vehicle battery by using the hydraulic pressure. Particularly, when a plurality of the apparatuses (2 to 3) is connected simultaneously, the fire extinguishing effect may be further increased.

[0053] Although the exemplary embodiments of the present disclosure have been described above, it may be understood by those skilled in the art that a variety of modifications and changes may be made without departing from the concept and scope of the present disclosure disclosed within the range of the following claims.Industrial Applicability

[0054] According to the present disclosure, when an electric vehicle battery fire occurs, the fire is capable of being rapidly suppressed. Therefore, the present disclosure is a technology capable of being widely used in the electric vehicle industry and the firefighting industry and capable of realizing practical and economic value.

Claims

1. A drill lance apparatus for suppressing an electric vehicle battery fire, the drill lance apparatus comprising: a height adjustable cart (110) configured to be moved and positioned below an electric vehicle battery; and a drill module (120) mounted on a lower side of an upper plate of the height adjustable cart (110), the drill module (120) being brought into close contact with the electric vehicle battery and being configured to drill a hole into the electric vehicle battery by using water injected from outside, and the drill module (120) being configured to spray water into an inside of the electric vehicle battery through the drilled hole.

2. The drill lance apparatus of claim 1, wherein the height adjustable cart (110) comprises a pole handle (111) configured to adjust a height of the drill module (120) by being rotated in a clockwise direction or a counterclockwise direction.

3. The drill lance apparatus of claim 1, wherein the drill module (120) comprises: a housing (121) which is provided on the lower side of the upper plate and in which water is injected; an impeller (122) provided in the housing (121) and configured to generate a rotational force by being rotated by water that is injected; a hole cutter (123) connected to the impeller (122) and configured to drill a fire extinguishing hole, by the rotational force of the impeller (122), for injecting water into the inside of the electric vehicle battery while the hole cutter (123) is in a state in which the hole cutter (123) is brought into close contact with the electric vehicle battery; and an elastic body (124) provided on a lower portion of the hole cutter (123).

4. The drill lance apparatus of claim 3, wherein a state in which the hole cutter (123) is brought into close contact with the electric vehicle battery is maintained by an elastic force of the elastic body (124).

5. The drill lance apparatus of claim 3, wherein a first side of the hole cutter (123) is provided with a compression fixing pin configured to maintain a state in which the elastic body (124) is compressed before the height adjustable cart (110) is positioned below the electric vehicle battery, and when the hole cutter (123) is rotated 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 brought into close contact with a lower portion of the electric vehicle battery.

6. The drill lance apparatus of claim 3, wherein a fire extinguishing water outlet port for discharging water that is injected is provided on a distal end portion and a side surface portion of the hole cutter (123).

7. The drill lance apparatus of claim 3, wherein a drain hole (121a) for discharging water injected into the inside of the housing (121) to an outside while the impeller (122) is rotated is provided on a side surface of the housing (121).

8. The drill lance apparatus of claim 7, wherein the housing (121) comprises: a slide plate (121b) configured to block the drain hole (121a) when the hole cutter (123) penetrates a lower portion of the electric vehicle battery by the elastic force of the elastic body (124), thereby inducing water injected into the housing (121) to be injected into the inside of the electric vehicle battery without being discharged through the drain hole (121a); a connection rod (121c) connected to the slide plate (121b); and an elastic body (121d) provided on the connection rod (121c), a locking step (121c-1) is formed on the connection rod (121c), and a rotation trigger (125) configured to change an opening and closing state of the slide plate (121b) by being rotated around a rotary shaft of a center portion is provided on the upper plate of the height adjustable cart (110).

9. The drill lance apparatus of claim 8, wherein a push transmission part (125a) in contact with a side surface of the hole cutter (123) is provided on a first distal end portion of the rotation trigger (125), and a locking means (125b) configured to be locked on and coupled to the locking step (121c-1) is provided on a second distal end portion of the rotation trigger (125), the locking means (125b) being configured such that when the rotation trigger (125) is rotated by push of the push transmission part (125a), the locking means (125b) is moved in a direction opposite to the push and then is separated from the locking step (121c-1).

10. The drill lance apparatus of claim 9, wherein, when the hole cutter (123) penetrates the lower portion of the electric vehicle battery, a first side of the hole cutter (123) pushes the push transmission part (125a), and the rotation trigger (125) is rotated around the rotary shaft and the locking means (125b) is separated from the locking step (121c-1), so that the slide plate (121b) closes the drain hole (121a) by an elastic force of the elastic body (121d).

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