Motor-driven drill lance device for extinguishing fire of vehicle

Abstract

The present invention relates to a motor-driven drill lance device for extinguishing fire of a vehicle. The motor-driven drill lance device comprises: a height-adjustable cart which is moved and positioned below an electric vehicle battery; and a drill module which, in a state of being in close contact with the electric vehicle battery, extinguishes fire generated in an electric vehicle battery, by drilling a hole in the electric vehicle battery through power of a motor and then spraying water through the drilled hole into the interior.

Description

Drill lance device for vehicle fire suppression using a motor

[0001] The present invention relates to a drill lance device for extinguishing fires in vehicles using a motor, and more specifically, to a drill lance device for extinguishing fires in vehicles using a motor, which automatically drills a fire extinguishing hole in the lower part of an electric vehicle battery using motor power and then sprays water to quickly extinguish the fire when a fire occurs in the electric vehicle battery.

[0002] Recently, as the number of electric vehicles registered in Korea continues to increase, safety measures to respond to electric vehicle fires are emerging as an urgent issue, as fires are frequent and electric vehicle batteries are difficult to extinguish due to their characteristics.

[0003] Electric vehicles have batteries that store high-capacity energy placed at the bottom of the vehicle. If the battery starts to catch fire due to an accident or other reasons, the temperature of the point of combustion is very high, and the high-density integrated form causes continuous heat transfer, which can lead to reignition, making it difficult to extinguish the fire.

[0004] If an electric vehicle catches fire and its battery catches fire, it is difficult to extinguish and easily reignites until completely combusted. This necessitates the continued application of large volumes of firefighting water over a prolonged period of time. The most effective method for suppressing this problem is to lift the burning electric vehicle with a crane and place it in a water tank. However, this method requires lifting the electric vehicle with a crane or other similar device, and the installation (fabrication) of a large tank on-site is therefore highly impractical.

[0005] Currently, the ownership rate of electric vehicles is rapidly increasing, and at the same time, electric vehicle fires are also on the rise. Due to the unique nature of electric vehicle fires, proactive response methods are needed, and technologies that can secure the safety of firefighters and effectively suppress fires to secure the golden time are required.

[0006] The present invention is intended to solve the aforementioned problem, and to provide a motor-operated vehicle fire suppression drill lance device that automatically drills a fire extinguishing hole in the lower part of an electric vehicle battery using motor power when a fire occurs in the electric vehicle battery and then sprays water to quickly extinguish the fire.

[0007] A drill lance device (100) for extinguishing a vehicle fire using a motor according to one embodiment of the present invention may include a height-adjustable carriage (110) that moves and is positioned below an electric vehicle battery, and a drill module (120) that is installed on the lower side of the upper plate of the height-adjustable carriage (110), and that, while in close contact with the electric vehicle battery, perforates a hole in the electric vehicle battery using the power of a motor, and then sprays water into the inside of the electric vehicle battery through the perforated hole to extinguish a fire occurring in the electric vehicle battery.

[0008] The height-adjustable carriage (110) according to one embodiment of the present invention may include a long handle that allows the height of the drill module (120) to be adjusted through clockwise or counterclockwise rotation.

[0009] According to one embodiment of the present invention, the drill module (120) is disposed on the lower side of the upper plate and includes a housing (121) that receives water injected from the outside, a motor (122) disposed on one side of the housing (121), a first bevel gear (123) that is connected to the motor (122) and is inserted into the housing (121) and rotates through the power of the motor (122), an inner housing (124) disposed on the inside of the housing (121), a hole cutter (125) disposed in the inner housing (124), an elastic body (126) that is disposed below the hole cutter (125) and raises the hole cutter (125) upward through elastic force, and a second bevel gear (126) that is connected at one side to the hole cutter (125) and meshes with the first bevel gear (123) and rotates the hole cutter (125) through the power of the motor (122). It includes a gear (127), and when the upper side of the hole cutter (125) is rotated by the power of the motor (122) in a state in which it is in close contact with the lower part of the electric vehicle battery, a fire hole for injecting water into the lower part of the electric vehicle battery can be perforated.

[0010] According to one embodiment of the present invention, the hole cutter (125) can be maintained in close contact with the lower portion of the electric vehicle battery by the elastic force of the elastic body (126).

[0011] According to one embodiment of the present invention, a compression fixing pin is provided on one side of the hole cutter (125) to ensure that the elastic body (126) is maintained in a compressed state before the height-adjustable bogie (110) is positioned under the electric vehicle battery, and when the hole cutter (125) rotates by the power of the motor (122), the compression fixing pin is automatically separated from the hole cutter (125), so that the hole cutter (125) can be brought into close contact with the lower part of the electric vehicle battery.

[0012] According to one embodiment of the present invention, a fire extinguishing discharge port is provided at the upper end and the side of the hole cutter (125) for discharging water injected into the housing (121), and the water injected into the housing (121) is discharged through the side of the hole cutter (125) before the fire extinguishing hole is perforated in the lower part of the electric vehicle battery, and when the fire extinguishing hole is perforated in the lower part of the electric vehicle battery and the hole cutter (125) is inserted through the fire extinguishing hole, the water can be discharged into the electric vehicle battery through the upper end of the hole cutter (125).

[0013] According to one aspect of the present invention, when a fire occurs in an electric vehicle battery, a fire extinguishing hole is automatically perforated in the lower part of the electric vehicle battery using motor power and then water is sprayed to directly cool the battery, thereby having the advantage of fundamentally and quickly preventing thermal runaway and re-ignition.

[0014] In addition, according to one aspect of the present invention, the fire extinguishing agent can be directly discharged to the outside through the hole cutter without a separate drain hole, and the frictional heat of the hole cutter is cooled by the fire extinguishing agent when the hole cutter rotates, thereby having the advantage of preventing wear and blade breakage due to heat.

[0015] In addition, according to one aspect of the present invention, since the hole cutter is operated by the power of the motor, even if the supply pressure (water pressure) of the supplied fire extinguishing water is low, it can sufficiently perforate an electric vehicle battery, and thus has the advantage of being applicable to existing indoor fire extinguishing facilities and water supply systems.

[0016] FIG. 1 is a drawing showing the configuration of a drill lance device (100) for vehicle fire suppression using a motor method according to one embodiment of the present invention.

[0017] Figure 2 is a drawing showing a state in which the height of a height-adjustable bogie (110) is adjusted.

[0018] Figure 3 is a drawing showing a state in which a drill module (120) is installed on the lower side of the upper plate of a height-adjustable cart (110).

[0019] Figure 4 is a cross-sectional view showing the configuration of a drill module (120).

[0020] Figure 5 is a drawing showing a state in which a hole cutter (125) rotates through the power of a motor (122) to perforate the lower part of an electric vehicle battery.

[0021] FIG. 6 is a drawing sequentially showing a process of extinguishing an electric vehicle battery fire using a drill lance device (100) for extinguishing a vehicle fire using a motor method according to one embodiment of the present invention.

[0022]

[0023] <Explanation of symbols>

[0024] 100: Drill lance device for vehicle fire suppression using motor

[0025] 110: Height-adjustable bogie

[0026] 120: Drill Module

[0027] 121: Housing

[0028] 122: Motor

[0029] 123: First bevel gear

[0030] 124: Internal housing

[0031] 125: Hole cutter

[0032] 126: Elastic body

[0033] 127: Second bevel gear

[0034] Hereinafter, specific details for implementing the present invention will be described in detail with reference to the attached drawings. However, in the following description, specific descriptions of widely known functions or configurations will be omitted if they may unnecessarily obscure the gist of the present invention.

[0035] In the attached drawings, identical or corresponding components are assigned the same reference numerals. Furthermore, in the description of the embodiments below, duplicate descriptions of identical or corresponding components may be omitted. However, even if a description of a component is omitted, it is not intended that such component is not included in any embodiment.

[0036] The advantages and features of the disclosed embodiments, and the methods for achieving them, will become clearer with reference to the embodiments described below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and these embodiments are provided only to make the present invention complete and to fully inform those skilled in the art of the scope of the present invention.

[0037] The terms used in this specification will be briefly explained, followed by a detailed description of the disclosed embodiments. The terms used in this specification have been selected from widely used, current terms, taking into account the functions of the present invention. However, these terms may vary depending on the intentions of engineers working in the relevant fields, precedents, the emergence of new technologies, etc. Furthermore, in certain cases, terms may be arbitrarily selected by the applicant, and in such cases, their meanings will be described in detail in the relevant description of the invention. Therefore, the terms used in this invention should be defined based on their meanings and the overall content of the present invention, rather than simply their names.

[0038] In this specification, singular expressions include plural expressions unless the context clearly indicates otherwise. Furthermore, plural expressions include singular expressions unless the context clearly indicates otherwise. When a part of the specification is said to include a component, this does not exclude other components, but rather implies that other components may be included, unless otherwise specifically stated.

[0039]

[0040] FIG. 1 is a drawing showing the configuration of a drill lance device (100) for vehicle fire suppression using a motor method according to one embodiment of the present invention.

[0041] Referring to FIG. 1, a drill lance device (100) for vehicle fire suppression using a motor method according to one embodiment of the present invention may largely include a height-adjustable bogie (110) and a drill module (120).

[0042] First, the height-adjustable cart (110) is configured to allow the drill module (120) described below to be positioned below the electric vehicle battery, and a long handle (not shown) can be connected to one end thereof. Accordingly, in the event of a fire in the electric vehicle, the user can manipulate the long handle to lower the height of the height-adjustable cart (110) as much as possible, thereby allowing the drill module (120) to be easily positioned below the electric vehicle battery. This will be examined in more detail as follows.

[0043] Figure 2 is a drawing showing a state in which the height of a height-adjustable bogie (110) is adjusted.

[0044] Referring to Fig. 2, the height-adjustable carriage (110) is configured to allow the upper plate, which is the installation surface on which the drill module (120) is installed, to be spaced apart from the floor surface by a desired height. At this time, as the long handle rotates the length-adjusting bolt bar that crosses a pair of horizontal bars located on the lower side of the height-adjustable carriage (110), the pair of horizontal bars move apart or closer to each other, thereby adjusting the height of the mounting surface up and down.

[0045] Additionally, in one embodiment, the top plate of the height-adjustable bogie (110) may be formed of a heat-resistant material (e.g., steel, etc.) to prevent heat-induced deformation from occurring at the bottom of the electric vehicle battery where thermal runaway occurs.

[0046]

[0047] The drill module (120) is fixedly installed on the lower side of the upper plate of the height-adjustable carriage (110) through a plurality of bolt connections, and when positioned under the electric vehicle battery through the height-adjustable carriage (110), the height of the height-adjustable carriage (110) can be adjusted upwards to become closer to the lower side of the electric vehicle battery as the height of the height-adjustable carriage (110) is adjusted. This will be examined as follows.

[0048] Fig. 3 is a drawing showing a state in which a drill module (120) is installed on the lower side of the upper plate of a height-adjustable cart (110), Fig. 4 is a cross-sectional view showing the configuration of the drill module (120), and Fig. 5 is a drawing showing a state in which a hole cutter (125) rotates through the power of a motor (122) to perforate the lower part of an electric vehicle battery.

[0049] Looking at FIGS. 3 to 5, the drill module (120) can largely include a housing (121), a motor (122), a first bevel gear (123), an inner housing (124), a hole cutter (125), an elastic body (126), and a second bevel gear (127).

[0050] First, the housing (121) is fixedly installed through a bolt connection using a plurality of bolts on the lower side of the upper plate of the height-adjustable carriage (110) discussed above, and a fire extinguishing port for injecting water from the outside is formed on one side, so that water injected from the outside can be accommodated.

[0051] Inside the housing (121), a motor (122), a first bevel gear (123), an inner housing (124), a hole cutter (125), an elastic body (126), and a second bevel gear (127) described later can be accommodated, and an internal space of sufficient size to accommodate water injected from the outside can be formed.

[0052] In particular, the drill module (120) can perforate a fire extinguishing hole for injecting water into the lower part of the electric vehicle battery by rotating the hole cutter (125) through the power of the motor (122) while the upper part of the hole cutter (125) is in close contact with the lower part of the electric vehicle battery by the elastic force of the elastic body (126), and quickly extinguish an electric vehicle battery fire by spraying water into the inside of the electric vehicle battery through the perforated hole.

[0053] A motor (122) is placed on one side (e.g., the side) of the housing (121), and at this time, a first bevel gear (123) connected to the motor (122) is inserted and protruded toward the inside of the housing (121) and rotates through the power of the motor (122).

[0054] In addition, an inner housing (124) is provided in an upward direction on the inner lower side of the housing (121). The inner housing (124) is formed in a hollow cylindrical shape, and a hole cutter (125) and an elastic body (126) can be accommodated on the inner side.

[0055] The hole cutter (125) is accommodated inside the inner housing (124) and can be raised from the bottom to the top by the elastic force of the elastic body (126). In addition, the hole cutter (125) can be connected to the second bevel gear (127), and rotates corresponding to the rotation of the second bevel gear (127) to perforate the lower part of the electric vehicle battery to form a digestion hole.

[0056] At this time, the hole cutter (125) has a hollow pipe shape inside, and a fire extinguishing outlet is formed on the upper end and side to discharge water injected into the housing (121).

[0057] In one embodiment, water injected into the housing (121) can be discharged through a fire extinguishing water discharge port formed on the side of the hole cutter (125) before the fire extinguishing hole is perforated in the lower part of the electric vehicle battery. In addition, after the fire extinguishing hole is perforated, since the hole cutter (125) is inserted into the lower part of the electric vehicle battery through the fire extinguishing hole, the water can be discharged into the interior of the electric vehicle battery through the upper end of the hole cutter (125).

[0058] The elastic body (126) is placed under the hole cutter (125) so that the hole cutter (125) can always be in close contact with the lower part of the electric vehicle battery through its own elastic force.

[0059] The elastic body (126) is compressed when the hole cutter (125) is pressed against the lower part of the electric vehicle battery, and the elastic force allows the upper end of the hole cutter (125) to always be pressed against the lower part of the electric vehicle battery as much as possible.

[0060] When the hole cutter (125) is in close contact with the lower surface of the electric vehicle battery, the rotational force of the motor (122) is transmitted to the first bevel gear (123) and the second bevel gear (127), thereby rotating the second bevel gear (127). At this time, since the hole cutter (125) is connected to the second bevel gear (127), the rotation of the second bevel gear (127) causes the hole cutter (125) to rotate, and accordingly, a digestion hole is perforated in the lower part of the electric vehicle battery and penetrates the lower part of the electric vehicle battery. This is possible because the elastic body (126) always pushes the hole cutter (125) toward the electric vehicle battery through elastic force.

[0061] Additionally, in one embodiment, a compression fixing pin (not shown) may be provided on one side of the hole cutter (125) to enable the elastic body (126) to remain compressed before the height-adjustable bogie (110) is positioned under the electric vehicle battery.

[0062] The compression fixing pin is structured to be kept engaged to one side of the hole cutter (125) before the hole cutter (125) rotates through the power of the motor (122), and can be automatically separated from the hole cutter (125) when the motor (122) is driven and the power is transmitted to the second bevel gear (127) through the first bevel gear (123) to initiate rotation of the hole cutter (125).

[0063] Meanwhile, the first bevel gear (123) may correspond to a straight bevel gear protruding from the motor (122), and the second bevel gear (127) may correspond to a circular bevel gear that is meshed and combined with the first bevel gear (123).

[0064] More specifically, the second bevel gear (127) can be formed in a shape that wraps around the outer circumference of the inner housing (124) and can be connected to the hole cutter (125). When the first bevel gear (123) rotates by the power of the motor (122) while being meshed with the first gear (123), the second bevel gear (127) receives the rotational force as it is and rotates together.

[0065] At this time, the second bevel gear (127) is connected to the hole cutter (125), but does not rise together with the hole cutter (125) when it rises by the elastic body (126), but rotates together with the first bevel gear (123) while maintaining its height.

[0066] Additionally, in one embodiment, the motor (122) can generate power to rotate the first bevel gear (123), and any one of an electric motor, an air motor, or a hydraulic motor can be applied.

[0067] In addition, in one embodiment, the first bevel gear (123) may be connected to the motor (122) and may be positioned so as to penetrate the side surface of the housing (121). At this time, in order to prevent the fire extinguishing fluid from leaking to the outside through the space between the side surface of the first bevel gear (123) and the side surface of the housing (121), a sealing member (not shown) may be provided in the space between the side surface of the first bevel gear (123) and the side surface of the housing (121) to prevent the fire extinguishing fluid from leaking.

[0068] Additionally, in one embodiment, the hole cutter (125) may have a hollow cylindrical shape inside, in which case the extinguishing fluid injected into the housing (121) through the hollow inner region can be directly discharged to the outside.

[0069] Additionally, in one embodiment, the extinguishing agent injected into the housing (121) can cool the blade of the hole cutter (125) during the process of being discharged to the outside, thereby reducing frictional heat. This is to minimize wear due to heat by having the extinguishing agent cool down the frictional heat generated during the process of the hole cutter (125) rotating at high speed piercing the lower part of the electric vehicle battery.

[0070] In addition, since the hole cutter (125) can rotate at high speed by the power of the motor (122), it can be operated without being affected by the supply pressure (water pressure) of the fire extinguishing water injected into the housing (121), and since the fire extinguishing water can be sufficiently injected through the perforated hole drilled at the bottom of the electric vehicle battery even when low water pressure is supplied, it has the advantage of being sufficiently applicable to existing indoor fire hydrants or water supply systems.

[0071]

[0072] Next, we will examine the process of extinguishing an electric vehicle battery fire using a drill lance device (100) for extinguishing a vehicle fire using the motor method discussed above.

[0073] FIG. 6 is a drawing sequentially showing a process of extinguishing an electric vehicle battery fire using a drill lance device (100) for extinguishing a vehicle fire using a motor method according to one embodiment of the present invention.

[0074] Looking at Figure 6, first, a drill lance device (100) for vehicle fire suppression using a motor is installed on the floor (S601), and a long handle is connected to one side of a height-adjustable cart (110) (S602).

[0075] Next, a hose for injecting water is connected to the water inlet provided on one side of the housing (121) (S603), the height-adjustable cart (110) is moved to the lower part of the electric vehicle battery where the fire occurred (S604), and the height of the height-adjustable cart (110) is raised by turning the long handle to fix the position (S605).

[0076] Next, the motor (122) connected to one side of the housing (121) operates to transmit power to the first bevel gear (123) and the second bevel gear (127) to rotate them, and rotation of the hole cutter (125) connected to the second bevel gear (127) is initiated (S606).

[0077] As the rotation of the hole cutter (125) begins, the compression fixing pin fixed to one side of the hole cutter (125) is released, and the upper end of the hole cutter (125) is lifted upwards through the elastic force of the elastic body (126) and is brought into close contact with the lower surface of the electric vehicle battery (S607).

[0078] In addition, as the power of the motor (122) continues to be transmitted, the hole cutter (125) perforates a digestion hole at the bottom of the electric vehicle battery, and during the digestion hole perforation process, the hole cutter (125) is continuously pushed upward by the elastic force of the elastic body (126) (S608).

[0079] When the perforation is completed, the injection is induced into the electric vehicle battery through the digestion hole (S609).

[0080] Fire suppression begins by injecting water into the electric vehicle battery through the fire extinguishing hole. After the fire is extinguished, the water supply is stopped, the long handle is turned in the opposite direction to lower the height of the height-adjustable cart (110), detach it from the fire extinguishing hole, and then it is removed from the bottom of the electric vehicle.

[0081]

[0082] As seen, according to the present invention, when a fire occurs in an electric vehicle battery, a fire extinguishing hole is automatically drilled in the lower part of the electric vehicle battery using motor power and water is sprayed to quickly extinguish the fire. In particular, when multiple units (2 to 3 units) of equipment are connected simultaneously, the fire extinguishing effect can be further increased.

[0083]

[0084] Although the present invention has been described above with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various modifications and changes may be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below.

[0085] According to the present invention, when a fire occurs in an electric vehicle battery, a fire extinguishing hole is automatically drilled in the lower part of the electric vehicle battery using motor power and then water is sprayed to directly cool the battery, thereby fundamentally and quickly preventing thermal runaway and re-ignition. The present invention is a technology that can be widely used in the electric vehicle and firefighting industries to realize its practical and economic value.

Claims

1. A height-adjustable cart (110) that moves and is positioned below the electric vehicle battery; and A drill module (120) is installed on the lower side of the upper plate of the height-adjustable cart (110), and is in close contact with the electric vehicle battery, and then a hole is drilled in the electric vehicle battery through the power of the motor, and then water is sprayed into the electric vehicle battery through the drilled hole to extinguish a fire occurring in the electric vehicle battery. A drill lance device for vehicle fire suppression using a motor.

2. In paragraph 1, The above height-adjustable bogie (110) is including a long handle for adjusting the height of the drill module (120) by rotating it clockwise or counterclockwise; A drill lance device for vehicle fire suppression using a motor.

3. In paragraph 1, The above drill module (120) is A housing (121) placed on the lower side of the upper plate and receiving water injected from the outside; A motor (122) placed on one side of the above housing (121); A first bevel gear (123) connected to the motor (122) and inserted into the inside of the housing (121) to rotate through the power of the motor (122); An inner housing (124) placed inside the above housing (121); A hole cutter (125) placed within the inner housing (124); An elastic body (126) positioned below the hole cutter (125) and lifting the hole cutter (125) upward through elastic force; and It includes a second bevel gear (127) which is connected on one side to the hole cutter (125) and meshed with the first bevel gear (123) on one side to rotate the hole cutter (125) through the power of the motor (122); When the upper part of the hole cutter (125) is rotated by the power of the motor (122) while being in close contact with the lower part of the electric vehicle battery, a fire hole for injecting water into the lower part of the electric vehicle battery is perforated. A drill lance device for vehicle fire suppression using a motor.

4. In paragraph 3, The hole cutter (125) is maintained in close contact with the lower portion of the electric vehicle battery by the elastic force of the elastic body (126). A drill lance device for vehicle fire suppression using a motor.

5. In paragraph 3, On one side of the above hole cutter (125), Before the height-adjustable bogie (110) is positioned below the electric vehicle battery, a compression fixing pin is provided to ensure that the elastic body (126) is maintained in a compressed state. When the hole cutter (125) rotates through the power of the motor (122), the compression fixing pin is automatically separated from the hole cutter (125), so that the hole cutter (125) is pressed against the lower part of the electric vehicle battery. A drill lance device for vehicle fire suppression using a motor.

6. In paragraph 3, On the upper end and side of the above hole cutter (125), A fire extinguishing water discharge port is provided for discharging water injected into the housing (121). The water injected into the above housing (121) is Before the digestion hole is perforated in the lower part of the electric vehicle battery, it is discharged through the side of the hole cutter (125), The fire extinguishing hole is perforated in the lower part of the electric vehicle battery, and when the hole cutter (125) is inserted through the fire extinguishing hole, the fire extinguishing hole is discharged into the electric vehicle battery through the upper end of the hole cutter (125). A drill lance device for vehicle fire suppression using a motor.

7. In paragraph 3, The above motor (122) is, Whether an electric motor, an air motor or a hydraulic motor is applied, A drill lance device for vehicle fire suppression using a motor.

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