Drilling gun device for fire extinguishing of battery of electric vehicle

Abstract

The invention relates to a drill gun device for fire extinguishing of an electric vehicle battery, which can utilize water pressure to automatically perforate the lower part of an electric vehicle to form a fire extinguishing hole and spray water so as to quickly extinguish fire when the electric vehicle battery is on fire.

Description

Technical Field

[0001] The present invention relates to a drill gun device for electric vehicle battery fire extinguishing, and in particular to a drill gun device for electric vehicle battery fire extinguishing which can automatically punch holes in the lower part of the electric vehicle to form fire extinguishing holes and spray water when a fire occurs in the electric vehicle battery, thereby quickly extinguishing the fire. Background Art

[0002] In recent years, with the increasing number of electric vehicles registered in South Korea, fires have frequently occurred and are difficult to extinguish due to the characteristics of electric vehicle batteries. There is an urgent need for a safety measure to deal with electric vehicle fires.

[0003] Electric vehicles have batteries that store high-capacity energy installed on the bottom of the vehicle. In the event of a battery fire due to an accident or other reasons, the temperature at the fire point is very high, and the high-density integration will lead to continuous heat transfer and cause re-ignition, making it difficult to extinguish the fire.

[0004] When a fire occurs in an electric vehicle and the battery of the electric vehicle catches fire, it is difficult to extinguish the fire and it is easy to reignite before it is completely burned. Therefore, a large amount of fire water needs to be continuously injected for a long time to extinguish the fire. As the most effective fire extinguishing method for solving the above-mentioned problems, a method of using a forklift to lift the electric vehicle on fire and put it into a water tank filled with water for extinguishing the fire can be adopted. However, in order to put the electric vehicle into the water tank, it needs to be lifted by a forklift and a large water tank needs to be installed (made) on site, so it is very difficult to achieve from a display point of view.

[0005] At present, with the sharp increase in the ownership rate of electric vehicles, electric vehicle fires have also shown an increasing trend. However, due to the particularity of electric vehicle fires, an active response method is needed, and a technology that can ensure the safety of firefighters and gain golden time by effectively extinguishing fires is urgently needed. Summary of the invention

[0006] The purpose of the present invention is to solve the above-mentioned existing problems and provide an electric vehicle battery fire extinguishing drill gun device which can automatically punch holes in the lower part of the electric vehicle to form fire extinguishing holes and spray water when a fire occurs in the electric vehicle battery, thereby quickly extinguishing the fire.

[0007] According to one embodiment of the present invention, a drill gun device for extinguishing fire of an electric vehicle battery may include: a height-adjustable trolley 110, which is moved and configured to the lower part of the electric vehicle battery; and a drilling module 120, which is installed on the lower side of the upper plate of the height-adjustable trolley 110, close to the electric vehicle battery and drills a hole in the electric vehicle battery through water injected from the outside and sprays water into the interior of the electric vehicle battery through the drilled hole.

[0008] In one embodiment, the height-adjustable trolley 110 may include a handle 111 , which is rotated clockwise or counterclockwise to adjust the height of the drilling module 120 .

[0009] In one embodiment, the drilling module 120 may include: a shell 121, into which water can be injected; an impeller 122, which is equipped inside the shell 121 and generates a rotational force by rotating with the help of the injected water; a hole cutter 123, which is connected to the impeller 122 and drills a fire extinguishing hole for injecting water into the electric vehicle battery with the help of the rotational force of the impeller 122 when it is tightly attached to the electric vehicle battery; and an elastomer 124, which is equipped at the lower part of the hole cutter 123.

[0010] In one embodiment, the hole cutter 123 can maintain a close contact with the impeller 122 by means of the elastic force of the elastic body 124 .

[0011] In one embodiment, a compression fixing pin may be provided on one side of the hole cutter 123 for maintaining the elastomer 124 in a compressed state before the height-adjustable trolley 110 is configured to the lower part of the electric vehicle battery; when the hole cutter 123 is rotated by means of the rotational force of the impeller 122, the compression fixing pin will automatically separate from the hole cutter 123, thereby allowing the hole cutter 123 to fit tightly to the lower part of the electric vehicle battery.

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

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

[0014] In one embodiment, the housing 121 may include: a sliding plate 121b, which, when the hole cutter 123 drills into the lower part of the electric vehicle battery with the aid of the elastic force of the elastomer 124, induces the water injected into the housing 121 to be injected into the electric vehicle battery through the fire extinguishing hole instead of being discharged through the drainage hole 121a by blocking the drainage hole 121a; a connecting rod 121c, connected to the sliding plate 121b; and an elastomer 121d, equipped on the connecting rod 121c; a snap-fit ​​ridge 121c-1 may be formed on the connecting rod 121c, and a rotating trigger 125 may be provided on the upper plate of the height-adjustable trolley 110 for changing the opening and closing state of the sliding plate 121b by rotating with the rotation axis of the center as a reference.

[0015] In one embodiment, a thrust transmitting portion 125a that contacts the side surface of the hole cutter 123 may be provided at the end portion on one side of the rotating trigger 125; and a clamping assembly 125b that is clamped and coupled with the clamping step 121c-1 may be provided at the end portion on the other side of the rotating trigger 125, and that moves in a direction opposite to the direction in which it is pushed and separates from the clamping step 121c-1 when the rotating trigger 125 is pushed and rotated by the thrust transmitting portion 125a.

[0016] In one embodiment, it is characterized in that: when the hole cutter 123 drills into the lower part of the electric vehicle battery, one side of the hole cutter 123 pushes the thrust transmission part 125a, and the rotary trigger 125 rotates with the rotation axis as the reference, so that the clamping assembly 125b is separated from the clamping ridge 121c-1, and the sliding plate 121b closes the drainage hole 121a with the help of the elastic force of the elastomer 121d.

[0017] According to one aspect of the present invention, when a fire occurs in an electric vehicle battery, water can be sprayed after a fire extinguishing hole is automatically drilled at the bottom of the electric vehicle battery by water pressure, thereby quickly extinguishing the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The diagram is a schematic diagram illustrating the structure of a drill gun device 100 for extinguishing a battery fire in an electric vehicle according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram specifically illustrating the height-adjustable trolley 110 .

[0020] Figure 3 It is a schematic diagram for specifically illustrating the drilling module 120 .

[0021] Figure 4 This is a schematic diagram showing a state where the height of the electric vehicle battery fire extinguishing drill device 100 is adjusted by the height-adjustable trolley 110 .

[0022] Figure 5 This is a schematic diagram illustrating a rotary trigger 125 mounted on the upper plate of the height-adjustable carriage 110 .

[0023] Figure 6 The schematic diagram shows a state where the slide plate 1121 b , the connecting rod 121 c , and the elastic body 121 d are connected in a state where the upper plate of the height-adjustable dolly 110 is removed.

[0024] Figure 7 It is a schematic diagram which shows the open and closed state of the slide plate 121b.

[0025] Figure 8 The diagram is a schematic diagram illustrating the process of extinguishing a fire on an electric vehicle battery by using a drill gun device 100 for extinguishing a fire on an electric vehicle battery according to one embodiment of the present invention in sequence.

[0026] Explanation of symbols

[0027] 100: Drilling gun device for electric vehicle battery fire extinguishing

[0028] 110: Height-adjustable trolley

[0029] 111: handle

[0030] 120: Drilling module

[0031] 121: Shell

[0032] 121a: Drainage hole

[0033] 121b: Sliding plate

[0034] 121c: Connecting rod

[0035] 121c-1: Kajiekan

[0036] 121d: Elastomer

[0037] 122: Impeller

[0038] 123: Hole Knife

[0039] 124: Elastomer

[0040] 125: Rotating trigger

[0041] 125a: Thrust transmission part

[0042] 125b: Snap-on assembly DETAILED DESCRIPTION

[0043] Next, in order to help understand the present invention, preferred embodiments are described. However, the following embodiments are provided only to make the present invention more easily understood, and the content of the present invention is not limited by the embodiments.

[0044] Figure 1 is a schematic diagram illustrating the structure of a drill gun device 100 for extinguishing fire of an electric vehicle battery according to one embodiment of the present invention. Figure 2 is a schematic diagram specifically illustrating the height-adjustable trolley 110. Figure 3 is a schematic diagram specifically illustrating the drilling module 120, and Figure 4 This is a schematic diagram showing a state where the height of the electric vehicle battery fire extinguishing drill device 100 is adjusted by the height-adjustable trolley 110 .

[0045] See also Figures 1 to 4 According to one embodiment of the present invention, a drill gun device 100 for extinguishing a fire in an electric vehicle battery may generally include a height-adjustable trolley 110 and a drilling module 120 .

[0046] The height-adjustable trolley 110 is configured to be able to move the drilling module 120 to the lower part of the battery of the electric vehicle, and is provided with a handle 111 on one side. Therefore, in the event of a fire in the electric vehicle, the user can operate the handle 111 to minimize the height of the height-adjustable trolley 110, thereby easily moving the drilling module 120 to the lower part of the battery of the electric vehicle.

[0047] The height-adjustable trolley 110 as described above is configured to be able to lift the mounting surface itself on which the drilling module 120 is mounted to a desired height from the bottom surface. At this time, the pair of crossbars can be brought closer to or away from each other by rotating the length adjustment bolts of the pair of crossbars located at the lower side of the height-adjustable trolley 110 located at the handle 111, thereby adjusting the vertical height of the mounting surface.

[0048] The drilling module 120 is installed on the lower side of the upper plate of the height-adjustable trolley 110 , and can be closely attached to the lower part of the electric vehicle battery by adjusting the height toward the upper side of the lower part of the electric vehicle battery with the help of the height-adjustable trolley 110 .

[0049] Specifically, the drilling module 120 includes: an outer shell 121, into which water can be injected; an impeller 122, which is equipped inside the outer shell 121 and generates a rotational force by rotating with the help of the injected water; a hole cutter 123, which is connected to the impeller 122 and drills a fire extinguishing hole for injecting water into the electric vehicle battery with the help of the rotational force of the impeller 122; and an elastomer 124, which is equipped at the lower part of the hole cutter 123.

[0050] In particular, the drilling module 120 may drill a hole at the lower side of the electric vehicle battery by injecting water from the outside, and spray water into the inside of the electric vehicle battery through the drilled hole to extinguish the fire.

[0051] The inner side of the housing 121 accommodates an impeller 122, a hole cutter 123, and an elastic body 124. In addition, a water injection port for injecting water into the inner side of the housing 121 is provided on one side of the housing 121, and the inner impeller 122 rotates by means of the water pressure of the water injected through the water injection port. The rotational force of the impeller 122 is directly transmitted to the hole cutter 123, as a result of which the hole cutter 123 can drill a hole in the lower part of the electric vehicle battery by means of water pressure. The water injected through the water injection port provided on the housing 121 will rotate along the inner wall of the housing 121, thereby driving the impeller 122 to rotate. The impeller 122 will generate a rotational force by means of the water pressure, and drive the hole cutter 123 to rotate by means of the rotational force.

[0052] The hole cutter 123 is rotated by the rotational force of the impeller 122, and a fire extinguishing hole is drilled at the lower part of the electric vehicle battery. Thus, a large amount of water can be injected into the electric vehicle battery through the fire extinguishing hole, so as to extinguish the fire more effectively.

[0053] At this time, the hole cutter 123 adopts an internally hollow tubular shape, and is equipped with a fire extinguishing water outlet at the end and the side for the water (fire extinguishing water) injected through the water inlet to be discharged into the electric vehicle battery through the fire extinguishing hole formed by the perforation.

[0054] The elastic body 124 is compressed when the hole cutter 123 is pressed against the lower part of the electric vehicle battery, and the elastic force causes the housing 121 to always face upward, so that the hole cutter 123 is always pressed against the lower part of the electric vehicle battery.

[0055] The hole cutter 123 can be pressed against the lower surface of the electric vehicle battery, so that the impeller 122 can rotate by means of water pressure and drive the hole cutter 123 to rotate, thereby gradually drilling a hole in the electric vehicle battery and making the hole cutter 123 drill into the lower part of the electric vehicle battery. This is because the elastic force of the elastic body 124 can push the housing 21 to always face the electric vehicle battery.

[0056] In addition, before the drilling is completed by means of the hole cutter 123 , the water injected through the water injection port needs to be discharged to the outside, and for this purpose, a drainage hole 121 a may be formed on the side of the housing 121 .

[0057] The drain hole 121a can function as a drain port for draining the injected water to the outside before the drilling is completed by means of the hole cutter 123. At this time, after the drilling is completed by means of 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 hole 121a, a sliding plate 121b is provided on one side of the housing 21. Next, it will be described in more detail.

[0058] Figure 5 1 is a schematic diagram illustrating a rotary trigger 125 mounted on the upper plate of the height-adjustable trolley 110. Figure 6 1 is a schematic diagram illustrating a state where the sliding plate 1121b, the connecting rod 121c, and the elastic body 121d are connected in a state where the upper plate of the height-adjustable dolly 110 is removed, and Figure 7 It is a schematic diagram which shows the open and closed state of the slide plate 121b.

[0059] See also Figures 5 to 7A connecting rod 121c connected to the sliding plate 121b and an elastic body 121d provided on the connecting rod 121c are provided inside the housing 121, and a rotary trigger 125 for changing the open and closed state of the sliding plate 121b by rotating with the central rotation axis as a reference is provided on the upper plate of the height-adjustable carriage 110. Basically, by connecting the sliding plate 121b and one side of the connecting rod 121c to each other, when the connecting rod 121c moves upward, the sliding plate 121b will also rise and thereby open the drain hole 121c, and when the connecting rod 121c moves downward, the sliding plate 121b will descend and thereby close the drain hole 121a.

[0060] At this time, the lower end portion of the connecting rod 121c is connected to the sliding plate 121b, and the upper end portion is connected to the lower surface of the upper plate of the height-adjustable trolley 110. That is, in the present invention, the housing 121 is a structure that is tightly connected to the lower surface of the upper plate of the height-adjustable trolley 110 by a plurality of bolts, and the upper end portion of the connecting rod 121c is equivalent to a structure that passes through the upper plate of the height-adjustable trolley 110 and is partially exposed to the outside. A small-diameter clamping ridge 121c-1 is formed in the middle of the connecting rod 121c exposed in the above manner.

[0061] When the sliding plate 121b moves upward and opens the drainage hole 121a, the engaging step 121c-1 of the connecting rod 121c will protrude upward and be exposed compared to the upper plate of the height-adjustable trolley 110. At this time, one side of the rotating trigger 125 is engaged by the corresponding engaging step 121c-1, so that the sliding plate 121b maintains the current state (i.e., the state of opening the drainage hole 121a).

[0062] Specifically, the rotary trigger 125 is connected to the upper plate of the height-adjustable carriage 110 via a rotary shaft, and is rotated in a clockwise direction or a counterclockwise direction with respect to the rotary shaft at the center.

[0063] At this time, a thrust transmission part 125a is provided at one end of the rotating trigger 125. The thrust transmission part 125a gradually retreats by contacting the side of the hole cutter 123 when the hole cutter 123 gradually rises, and in the above case, the rotating trigger 125 rotates by means of the rotating shaft, so that the other end of the rotating trigger 125 rotates in the direction opposite to the direction of being pushed. A clamping assembly 125b is provided at the other end of the rotating trigger 125 to be clamped and combined with the clamping ridge 121c-1 of the connecting rod 121c as described above.

[0064] That is, when the sliding plate 121b moves upward and opens the drain hole 121a, the clamping sill 121c-1 of the connecting rod 121c rises above the upper plate of the height-adjustable trolley 110 and clamps onto the clamping assembly 125b. In the above state, unless the clamping assembly 125b is separated from the clamping sill 121c-1, the sliding plate 121b maintains the state of opening the drain hole 121a.

[0065] In the present state, the elastic body 121d is provided on the connecting rod 121c, and the elastic body 121d can be compressed by the portion connecting the sliding plate 121b and the connecting plate 121c to each other and the upper plate of the height-adjustable trolley 110 and has a compressive force when the sliding plate 121b rises upward with the help of the connecting rod 121c.

[0066] In the current state, when the hole cutter 123 rises, the thrust transmission part 125a in contact with the side of the hole cutter 123 will gradually retreat. For this reason, the hole cutter 123 adopts a structure in which the diameter of the side gradually increases. Thereby, when the hole cutter 123 gradually rises, the diameter of the side will also gradually increase, so the thrust transmission part 125a will gradually retreat, so that the rotary trigger 125 itself rotates with the rotation axis as the reference.

[0067] By means of the rotation as described above, the snap-fit ​​assembly 125b will be separated from the snap-fit ​​step 121c-1, and the elastic body 121d previously compressed by the compression force pushes the part connecting the sliding plate 121b and the connecting rod 121c to each other, thereby causing the sliding plate 121b to move downward and thereby close the drainage hole 121a.

[0068] Thereby, when the hole cutter 123 completes perforating the lower part of the electric vehicle battery, the sliding plate 121b will close the drainage hole 121b, thereby inducing the water injected into the shell 121 to be injected into the electric vehicle battery through the fire extinguishing hole instead of being discharged through the drainage hole 121a.

[0069] Next, a process of extinguishing a fire on an electric vehicle battery by using the drill gun device 100 for extinguishing a fire on an electric vehicle battery as described above will be described.

[0070] Figure 8 The diagram is a schematic diagram illustrating the process of extinguishing a fire on an electric vehicle battery by using a drill gun device 100 for extinguishing a fire on an electric vehicle battery according to one embodiment of the present invention in sequence.

[0071] See also Figure 8 First, in step S801, the electric vehicle battery fire extinguishing drill gun device 100 is placed on the ground, and then in step S802, the rod handle 111 is connected.

[0072] Next, in step S803, a hose for injecting water into the interior of the outer shell 121 is connected, and then in step S804, the height-adjustable trolley 110 is moved and positioned under the battery of the electric vehicle where the fire has occurred, and then in step S805, the height of the height-adjustable trolley 110 is raised and its position is fixed by rotating the handle 111.

[0073] Next, in step S806, water is injected into the housing 121 to rotate the impeller 122 and drive the hole cutter 123 to rotate together, thereby starting to drill a fire extinguishing hole at the bottom of the electric vehicle battery.

[0074] During the drilling process of the fire extinguishing hole, the hole cutter 123 will be continuously pushed to the upper side by the elastic force of the elastic body 124, and when the drilling is completed, the end of one side of the rotating trigger 125 equipped on the upper plate of the height-adjustable trolley 110 will contact the side of the gradually rising hole cutter 123 and gradually retreat. In the above-mentioned case, the rotating trigger 125 will rotate by means of the rotating shaft, and the end of the other side of the rotating trigger 125 will rotate in the opposite direction of the pushed direction, so that the sliding plate 121b descends and blocks the drainage hole, thereby inducing water to be injected into the battery of the electric vehicle through the fire extinguishing hole. In addition, the fire is extinguished by injecting water into the battery of the electric vehicle through the fire extinguishing hole. After the fire is extinguished, the water supply is stopped, and the height of the height-adjustable trolley 110 is lowered and separated from the fire extinguishing hole by rotating the rod handle 111 in the opposite direction, and then taken out from the lower part of the electric vehicle.

[0075] As described above, the present invention can utilize water pressure to automatically drill holes in the lower part of the electric vehicle battery to form a fire extinguishing hole and spray water when a fire occurs in the electric vehicle battery, thereby quickly extinguishing the fire, especially when multiple (2 to 3) devices are connected at the same time, the fire extinguishing effect can be further enhanced.

[0076] The above content describes the preferred embodiments of the present invention, but skilled practitioners in the relevant technical field should understand that the present invention can be modified and changed in many ways without departing from the scope of the concept and purpose of the present invention as recorded in the attached claims.

[0077] Industry availability

[0078] The present invention can quickly extinguish fire when a fire occurs in an electric vehicle battery, so the present invention is a practical and economically valuable technology that can be widely used in the fields of electric vehicles and the fire protection industry.

Claims

1. A drill gun device for electric vehicle battery fire extinguishing, characterized in that: include: A height-adjustable trolley (110) is moved and arranged under the battery of the electric vehicle; as well as, The drilling module (120) is installed on the lower side of the upper plate of the height-adjustable trolley (110), is closely attached to the electric vehicle battery, and uses water injected from the outside to drill holes in the electric vehicle battery and spray water into the electric vehicle battery through the drilled holes.

2. The electric vehicle battery fire extinguishing drill gun device according to claim 1, characterized in that: The height-adjustable trolley (110) comprises: The handle (111) is used to adjust the height of the drilling module (120) by rotating it in a clockwise direction or a counterclockwise direction.

3. The electric vehicle battery fire extinguishing drill gun device according to claim 1, characterized in that: The drilling module (120) comprises: The housing (121) can be filled with water; an impeller (122) disposed inside the housing (121) and generating a rotational force by rotating with the help of the injected water; a hole cutter (123) connected to the impeller (122) and, in a state of being closely attached to the electric vehicle battery, drilling a hole by means of the rotational force of the impeller (122) to form a fire extinguishing hole for injecting water into the electric vehicle battery; and The elastic body (124) is provided at the lower part of the hole cutter (123).

4. The electric vehicle battery fire extinguishing drill gun device according to claim 3, characterized in that: The hole cutter (123) maintains a state of being in close contact with the impeller (122) by means of the elastic force of the elastic body (124).

5. The electric vehicle battery fire extinguishing drill gun device according to claim 3, characterized in that: On one side of the hole cutter (123), A compression fixing pin is provided for maintaining the elastic body (124) in a compressed state before the height-adjustable trolley (110) is arranged under the battery of the electric vehicle; When the hole cutter (123) is rotated by means of the rotational force of the impeller (122), the compression fixing pin will automatically separate from the hole cutter (123), so that the hole cutter (123) is closely attached to the lower part of the electric vehicle battery.

6. The electric vehicle battery fire extinguishing drill gun device according to claim 3, characterized in that: At the end and side of the hole cutter (123), A fire extinguishing water discharge port is provided for discharging the injected water.

7. The electric vehicle battery fire extinguishing drill gun device according to claim 3, characterized in that: On the side of the housing (121), A drainage hole (121a) is provided for discharging water injected into the interior to the outside when the impeller (122) rotates.

8. The electric vehicle battery fire extinguishing drill gun device according to claim 7, characterized in that: The housing (121) comprises: The sliding plate (121b) blocks the drainage hole (121a) when the hole cutter (123) drills into the lower part of the electric vehicle battery by means of the elastic force of the elastic body (124), thereby inducing the water injected into the interior of the housing (121) to be injected into the interior of the electric vehicle battery through the fire extinguishing hole instead of being discharged through the drainage hole (121a); a connecting rod (121c) connected to the sliding plate (121b); and An elastic body (121d), provided on the connecting rod (121c); A clamping ridge (121c-1) is formed on the connecting rod (121c). On the upper plate of the height-adjustable trolley (110), A rotary trigger (125) is provided for changing the open / closed state of the sliding plate (121b) by rotating with the central rotation axis as a reference.

9. The electric vehicle battery fire extinguishing drill gun device according to claim 8, characterized in that: A thrust transmission portion (125a) that contacts the side surface of the hole cutter (123) is provided at one end portion of the rotary trigger (125); The other end portion of the rotating trigger (125) is provided with a locking assembly (125b) which is locked with the locking ridge (121c-1) and moves in a direction opposite to the direction in which it is pushed and separates from the locking ridge (121c-1) when the rotating trigger (125) is pushed by the thrust transmission portion (125a) and rotates.

10. The electric vehicle battery fire extinguishing drill gun device according to claim 9, characterized in that: When the hole cutter (123) drills into the lower part of the electric vehicle battery, one side of the hole cutter (123) pushes the thrust transmission part (125a), and the rotary trigger (125) rotates with the rotation axis as a reference, so that the clamping assembly (125b) is separated from the clamping ridge (121c-1), and the sliding plate (121b) closes the drainage hole (121a) with the help of the elastic force of the elastic body (121d).

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