Device for extinguishing fire in electric vehicle being charged

Abstract

The present invention relates to a fire extinguishing device capable of an initial response to a fire occurring in an electric vehicle being charged. The fire extinguishing device includes: a boundary unit having a flow path therein and installed on the ground between the electric vehicle being charged and a charger; a coupler which is formed in a portion of the boundary unit and into which a fire hose is inserted and connected; a hose unit formed at the lower portion of the boundary part so as to be connected to the flow path, and configured to be spread out under the electric vehicle being charged by the pressure of water discharged from the fire hose; and a discharge nozzle installed in the hose unit to discharge water supplied into the hose unit toward the electric vehicle being charged.

Description

Fire suppression device for electric vehicles while charging

[0001] The present invention relates to a fire suppression device for an electric vehicle, and more specifically, to a fire suppression device designed to suppress a fire when a fire occurs in an electric vehicle while it is being charged.

[0002]

[0003] As electric vehicles become more widespread, charging stations are also becoming more common. These charging stations charge large-capacity electric vehicle batteries at high voltages, posing a constant risk of fire. Recently, numerous cases of fires breaking out in electric vehicle batteries during charging have been reported.

[0004] Electric vehicle fires are often caused by thermal runaway, a rapid temperature rise caused by a malfunction in the battery cells. These fires are known to be more difficult to extinguish than conventional fires. This is because, unlike internal combustion engine fires, the battery pack, the ignition source, is located underneath the vehicle. Conventional firefighting methods, such as spraying water from above, make it difficult for the water to directly reach the source of the fire.

[0005] Recently, many fire suppression equipment for electric vehicle fires, such as portable extinguishing tanks and asphyxiating fire extinguishers, have been developed. However, these are only methods that can be implemented after the firefighters arrive, and there are virtually no measures that individual users can take when a fire is detected in the early stages.

[0006]

[0007] The present invention has been devised to solve the technical problem described above, and the purpose of the fire suppression device for a charging electric vehicle according to the present invention is to provide a fire suppression device capable of initial response in the event of a fire in a charging electric vehicle.

[0008]

[0009] In order to solve the technical problem described above, the fire suppression device for a charging electric vehicle according to the present invention comprises a boundary portion installed on the ground between a charging electric vehicle and a charger, in which a flow path is formed inside, a coupling portion formed in a part of the boundary portion and into which a fire hose is inserted and connected, a hose portion formed in a lower portion of the boundary portion to be connected to the flow path and configured to be spread toward the lower portion of the charging electric vehicle by the pressure of water discharged from the fire hose, and a discharge nozzle installed in the hose portion to discharge water supplied into the inside of the hose portion toward the charging electric vehicle.

[0010] In addition, the above discharge nozzles are installed in multiple numbers spaced apart at regular intervals in the length direction of the hose portion.

[0011] In addition, the coupling member includes a main body in a cylindrical shape in which the fire hose is positioned, and a cover installed at the end of the main body to secure the fire hose.

[0012] Additionally, the cover includes a hole formed through which a hose portion of the fire hose is positioned and a cut portion that is partially cut to connect the hole to the outside.

[0013] Additionally, the cover is connected to the main body through a hinge, and the cut portion is located in an opposite direction of the hinge portion with respect to the center of the cover.

[0014] In addition, the cover is coupled to the main body through a hinge portion, and further includes a locking portion coupled to the main body.

[0015] In addition, the coupling member includes a spring inserted into the main body and a spring cover coupled to one end of the spring on the cover side, and when the fire hose is inserted into the coupling member, the spring cover comes into contact with a standardized coupler among the parts of the fire hose to compress the spring.

[0016] Additionally, the coupling member further includes a sealing portion positioned between the end of the main body and the cover.

[0017] In addition, the hose portion further includes a through hole formed through a portion thereof, and a sprinkler nozzle coupled to the through hole to spray water supplied through the hose portion.

[0018] Additionally, the screw thread included in the sprinkler nozzle further includes two nuts that are inserted into the through hole and are screwed to the screw thread with the hose portion interposed therebetween.

[0019]

[0020] According to the fire suppression device for an electric vehicle during charging according to various embodiments of the present invention as described above, when a fire occurs, the user connects the fire hose to the joint and sprays water, and the rolled-up hose part is deployed and located at the bottom of the electric vehicle, and then water is sprayed at the bottom of the electric vehicle, so that water can be sprayed directly at the battery of the electric vehicle, which is the main cause of the fire, thereby facilitating initial response in the event of a fire in an electric vehicle during charging.

[0021]

[0022] Figure 1 is a schematic diagram of a hose section of a fire suppression device for an electric vehicle during charging according to an embodiment of the present invention when rolled up.

[0023] Figure 2 is a schematic diagram of a hose section of a fire suppression device for an electric vehicle during charging according to an embodiment of the present invention when deployed.

[0024] Figure 3 schematically illustrates a hose section of a fire suppression device according to an embodiment of the present invention being deployed to the bottom of an electric vehicle to perform initial fire suppression.

[0025] Figure 4 is a perspective view of a joint of a fire suppression device for an electric vehicle being charged according to an embodiment of the present invention.

[0026] FIG. 5 is a perspective view of a fire suppression device for a charging electric vehicle according to an embodiment of the present invention, in which the cover of the coupling port is opened and some of the internal components are discharged to the outside.

[0027] FIG. 6 is a cross-sectional view of a state in which a fire hose is connected to a joint of a fire suppression device for a charging electric vehicle according to an embodiment of the present invention.

[0028] Figure 7 is a schematic cross-sectional view of a hose section of a fire suppression device for an electric vehicle during charging according to an embodiment of the present invention.

[0029] FIG. 8 is a schematic cross-sectional view of other embodiments of a hose section of a fire suppression device for an electric vehicle during charging according to the present invention.

[0030]

[0031] <Explanation of symbols>

[0032] 10: Fire hose 11: Fire nozzle

[0033] 12: Coupler 13: Hose

[0034] 20: Electric car 30: Charger

[0035] 100: Boundary 110: U-shaped body

[0036] 120: connecting rod 200: coupling

[0037] 210: Body 211: Support

[0038] 220: Cover 221: Hole

[0039] 222: Incision 223: Protrusion

[0040] 230: Hinge 240: Locking part

[0041] 250: Spring 260: Spring Cover

[0042] 300: Hose section 310: Through hole

[0043] 400: Discharge nozzle 500: Sprinkler nozzle

[0044] 510: Joint body 511: First nut

[0045] 512: Second nut 513: Support member

[0046]

[0047] The above-described objects, features, and advantages of the present invention will become more apparent through the following examples taken in conjunction with the accompanying drawings. The specific structural and functional descriptions below are merely illustrative for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms and should not be construed as limited to the embodiments described in this specification or application. Since embodiments according to the concept of the present invention may have various modifications and may take various forms, specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit embodiments according to the concept of the present invention to specific disclosed forms, but should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention. Terms such as first and / or second may be used to describe various components, but the components are not limited to the terms. The above terms are used solely for the purpose of distinguishing one component from another, for example, without departing from the scope of the rights according to the concept of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. When a component is referred to as being connected or coupled to another component, it should be understood that it may be directly connected or coupled to the other component, but there may also be other components in between. Conversely, when a component is referred to as being directly connected or coupled to another component, it should be understood that there are no other components in between. Other expressions used to describe the relationship between components, such as between, directly between, adjacent to, and directly adjacent to, should be interpreted similarly.The terminology used herein is used solely to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. It should be understood that terms such as "comprise" or "have" as used herein indicate the presence of a described feature, number, step, operation, component, part, or combination thereof, and do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof. Unless otherwise defined, all terms, including technical or scientific terms, used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined herein. Hereinafter, the present invention will be described in detail by describing a preferred embodiment of the present invention with reference to the accompanying drawings. The same reference numerals in each drawing represent the same parts.

[0048]

[0049] FIG. 1 is a schematic diagram of a hose portion of a fire suppression device for an electric vehicle during charging according to an embodiment of the present invention when rolled up, and FIG. 2 is a schematic diagram of a hose portion of a fire suppression device for an electric vehicle during charging according to an embodiment of the present invention when deployed.

[0050] As illustrated in FIGS. 1 and 2, a fire suppression device for a charging electric vehicle according to one embodiment of the present invention includes a boundary portion (100), a coupling portion (200), a hose portion (300), and a discharge nozzle (400).

[0051] The boundary (100) is installed on the ground between the electric vehicle being charged and the charger. Referring to FIGS. 1 and 2, the lower left side of the boundary (100) may be the area where the electric vehicle is located, and the upper right side may be the area where the charger is located. The boundary (100) itself may be a bollard installed on a general charger, and serves to prevent a vehicle from crossing the boundary (100) and entering a sidewalk or a specific area. A separate passage may be formed inside the boundary (100), and firefighting water for extinguishing a fire may pass through the passage.

[0052] The coupling hole (200) is formed in a part of the boundary portion (100). The part where the coupling hole (200) is located can be formed to face the charger based on the boundary portion (100). This is because, considering the user's position, it is the most convenient position to couple the fire hose into the coupling hole (200). However, the present invention is not limited to being formed to face the position of the coupling hole (200) on the boundary portion (100), and the coupling hole (200) can be formed in various positions of the boundary portion (100) as needed. As described above, the coupling hole (200) is connected to the fire hose by inserting the fire hose, and water discharged through the fire hose flows into the boundary portion (100) through the coupling hole (200).

[0053] The hose portion (300) is formed to be connected to the flow path at the lower part of the boundary portion (100). In the present embodiment, the boundary portion (100) includes a U-shaped body (110) in the shape of an upside-down capital letter U and a connecting rod (120) connecting both ends to the lower part of the central portion. A flow path is formed in each of the U-shaped body (110) and the connecting rod (120) so that they are connected to each other. In the present embodiment, one end of the hose portion (300) is connected to the central portion of the connecting rod (120). Although not illustrated in detail in the drawing, a separate coupler may be formed at one end of the hose portion (300) and a separate coupler may also be formed at the connecting rod (120), so that the hose portion (300) may be connected to the connecting rod (120) in such a manner that the two couplers are connected to each other. However, since the above-described example is only one embodiment in which the connecting rod (120) and the hose portion (300) are connected to each other, there may be any number of embodiments in which the hose portion (300) is connected to the connecting rod (120) in various ways. In addition, in the above description, the boundary portion (100) has been described as an embodiment including a U-shaped body (110) and a connecting rod (120), but the present invention is not limited thereto, and the boundary portion (100) may have various shapes.

[0054] As shown in Fig. 1, when a fire does not occur and a fire hose is not inserted into the coupling port (200), the hose portion (300) is wound and stored on the side of the connecting rod (120). As shown in Fig. 2, when a fire hose is inserted and connected to the coupling port (200) and water is supplied, the hose portion is deployed due to the pressure of the supplied water and is positioned at the bottom of the electric vehicle.

[0055] As illustrated in FIGS. 1 and 2, a discharge nozzle (400) is installed on the hose section (300) to discharge water supplied into the hose section (300) toward the electric vehicle being charged. A plurality of discharge nozzles (400) may be installed spaced apart from each other in the length direction of the hose section (300), and a plurality of discharge nozzles may also be installed in the width direction at the same length.

[0056] Figure 3 schematically illustrates the hose section (300) of the fire suppression device according to the present invention being deployed to the lower part of an electric vehicle (20) to perform initial fire suppression.

[0057] As illustrated in FIG. 3, the hose section (300) is deployed to the lower portion of an electric vehicle (20) being charged by a charger (30) and sprays water supplied from a fire hose (10) toward the electric vehicle (20). This method allows water to be sprayed directly onto the battery located at the lower portion of the electric vehicle (20), thereby enabling more efficient initial response to a fire in the event of a fire in the electric vehicle (20).

[0058] FIG. 4 is a perspective view of a coupling portion of a fire suppression device for an electric vehicle during charging according to an embodiment of the present invention, FIG. 5 is a perspective view of a coupling portion of a fire suppression device for an electric vehicle during charging according to an embodiment of the present invention in which a cover is opened and some of the internal components are discharged to the outside, and FIG. 6 is a cross-sectional view of a fire hose coupled to a coupling portion of a fire suppression device for an electric vehicle during charging according to an embodiment of the present invention.

[0059] As shown in FIGS. 4 to 6, in a fire suppression device for an electric vehicle during charging according to one embodiment of the present invention, a coupling member (200) includes a main body (210) and a cover (220).

[0060] The main body (210) has a cylindrical shape, and as illustrated in FIG. 6, when a fire hose (10) is inserted, it is the part where the fire hose (10) is positioned. One end of the main body (210) is connected to the boundary portion (100) described above, and the space inside is connected to the flow path inside the boundary portion (100). A cover (220) is installed at the other end of the main body (210), and the cover (220) serves to secure the fire hose (10).

[0061] More specifically, the cover (220) includes a hole (221) formed to position the hose (13) when the fire hose (10) is inserted, and a cut portion (222) that is partially cut to connect the hole (221) to the outside. The cover (220) is connected to the main body (210) through a hinge portion (230) and is configured to be rotatable about the hinge portion (230). When a fire occurs in the electric vehicle (20), the user opens the cover (220) of the coupling port (200) by rotating the hinge portion (230) about the hinge portion (230), and then inserts the fire hose (10) into the main body (210) as illustrated in FIG. 6, and then closes the cover (220) to secure the fire hose (10). At this time, since the fire hose (10) is not yet supplying water, the hose (13) of the fire hose (10) can be positioned in the hole (221) through the cut portion (222). Thereafter, when water is supplied to the fire hose (10), the hose (13) swells in the hole (221). The area of ​​the hole (221) can be determined by considering the size of the swelling when water is supplied to the hole (221). Considering the rotational axis of the cover (220), it is preferable that the cut portion (222) be positioned on the opposite side of the hinge portion (230) with respect to the center portion of the cover (220), and by positioning the cut portion (222) on the opposite side of the hinge portion (230) with respect to the center portion of the cover (220), it is possible to make it easier for the user to insert the hose (13) of the fire hose (10) into the hole (221) through the cut portion (222).

[0062] In the present embodiment, the coupling member (200) may include a locking member (240). As illustrated in FIGS. 4 to 6, the locking member (240) may be coupled to the lower portion of the main body (210). In the present embodiment, the locking member (240) is implemented as a device generally referred to as a latch. The locking member (240), which is a latch, has a catch that catches a locking member formed at the lower portion of the cover (220) to fix the main body (210) and the cover (220) to each other.

[0063] Referring to FIGS. 5 and 6, the coupling member (200) includes a support member (211), a spring (250), and a spring cover (260).

[0064] The support portion (211) is a portion that protrudes inwardly to a certain extent from a portion of the main body (210). In the embodiment illustrated in FIG. 6, the support portion (211) not only protrudes inwardly to a certain extent, but also has a protruding end that protrudes to a certain extent toward the cover (220). The support portion (211) is a portion where one end of a spring (250) described later is located.

[0065] The spring (250) is located between the support (211) and the cover (220), and is a portion that is compressed by the protruding portion of the coupler (12) included in the fire hose (10) when the fire hose (10) is inserted. The spring cover (260) is connected to one end of the cover (220) of the spring (250), and is a portion that comes into contact with the protruding portion of the coupler (12). With reference to Fig. 6, the fire nozzle (11) is located on the left side of the spring cover (260), and the coupler (12) and the hose (13) are located on the right side. Among the fire nozzle (11), the coupler (12), and the hose (13) included in the fire hose (10), the coupler (12) is a standardized portion, and therefore the spring cover (260) can also be manufactured in a certain shape. The spring (250) and spring cover (260) are compressed by the coupler (12) inserted into the coupling member (200), and the elastic energy stored by the compression pushes the coupler (12) toward the cover (220). The cover (220) may include a protrusion (223) formed to protrude on the unexposed inner surface (one side of the main body) and to contact the coupler (12) to fix the coupler (12).

[0066] In addition, although not shown in the drawing, the coupling member (200) in this embodiment may further include a sealing member positioned between the end of the main body (210) and the cover (220), and a sealing member positioned between the protrusion (223) and the end of the coupler (12), thereby sealing the inside and outside of the coupling member (200).

[0067] Fig. 7 is a schematic cross-sectional view of a hose section of a fire suppression device for an electric vehicle during charging according to an embodiment of the present invention.

[0068] As described above, the hose part (300) of the present embodiment sprays water supplied internally to the hose part (300) through the discharge nozzle (400) toward the electric vehicle (20). Since the discharge nozzle (400) is fixed to the hose part (300) itself, it may be difficult to change its position. This may be a fatal problem when the position of the sprayed water must change depending on the length of the hose part (300) or the type of the electric vehicle (20). In order to solve the problem described above, in the present embodiment, a separate through-hole (310) is formed in the hose part (300), and a sprinkler nozzle (500) coupled through the through-hole (310), and a first nut (511) and a second nut (512) coupled to the sprinkler nozzle (500) to the through-hole (310) may be further included.

[0069] The sprinkler nozzle (500) includes a connecting body (510) having threads formed therein. The connecting body (510) can be inserted into a through hole (310), and a first nut (511) and a second nut (512) are screw-connected to the connecting body (510) with a hose portion (300) interposed therebetween, thereby fixing the sprinkler nozzle (500) to the hose portion (300). Water moving through the hose portion (300) can be discharged toward the electric vehicle (20) through the sprinkler nozzle (500).

[0070] FIG. 8 is a schematic cross-sectional view of other embodiments of a hose section of a fire suppression device for an electric vehicle during charging according to the present invention.

[0071] As illustrated in FIG. 8a, in the present invention, a sprinkler nozzle (500) is coupled to the hose portion (300), and a support member (513) may be inserted into the through hole (310). In the coupling relationship between the hose portion (300) and the sprinkler nozzle (500) described with reference to FIG. 7, since there is no separate support member inside the hose portion (300), water may leak through the gap between the hose portion (300) and the sprinkler nozzle (500). This is because the hose portion (300) itself does not have rigidity, and thus the first nut (511) and the second nut (512) are not coupled to the hose portion (300) with a pressure exceeding a certain level. The embodiment illustrated in Fig. 8a is intended to solve this problem, and is a method of increasing the bonding strength between the first nut (511) and the hose portion (300), and between the second nut (512) and the hose portion (300) by inserting a separate support member (513) inside through the through hole (310). The support member (513) may be a kind of tubular shape with a hole formed through the center portion based on the height direction so that water moving through the inside of the hose portion (300) can move.

[0072] In addition to the method using the support member (513) as shown in FIG. 8a, there may also be an embodiment in which a second nut (512) is inserted into the inside of the hose section (300) as shown in FIG. 8b, and the first nut (511) and the second nut (512) are coupled to the sprinkler with one side of the hose section (300) interposed therebetween.

[0073]

[0074] Although preferred embodiments of the present invention have been described above, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but rather to explain it. Therefore, the technical spirit of the present invention includes not only each disclosed embodiment but also a combination of disclosed embodiments, and further, the scope of the technical spirit of the present invention is not limited by these embodiments. In addition, those skilled in the art to which the present invention pertains can make numerous changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications should be considered as equivalents and falling within the scope of the present invention.

[0075]

[0076] The present invention is a result of the following national research and development project.

[0077] 1. Assignment ID: 1415186770

[0078] 2. Assignment Number: 20222020800190

[0079] 3. Ministry Name: Ministry of Trade, Industry and Energy

[0080] 4. Project Management (Specialist) Agency Name: Korea Institute of Energy Technology Evaluation and Planning

[0081] 5. Research Project Name: Energy Demand Management Core Technology Development Project

[0082] 6. Research Project Name: Development and Demonstration of a 600kW Automatic Charging System for a 50-Vehicle Parking Tower, Capable of Simultaneously Charging 8 Vehicles to Accelerate Carbon Neutrality

[0083] 7. Name of the project performing organization: Everon Co., Ltd.

[0084] 8. Research Period: April 1, 2022 - March 31, 2026.

Claims

1. A boundary area installed on the ground between a charging electric vehicle and a charger, with a flow path formed inside; A joint formed in a part of the above boundary and into which a fire hose is inserted and connected; A hose section formed to be connected to the above-mentioned guiding line at the lower portion of the above-mentioned boundary section and configured to be extended to the lower portion of the electric vehicle being charged by the pressure of water discharged from the above-mentioned fire hose; and A discharge nozzle installed in the hose section to discharge water supplied into the hose section toward the electric vehicle being charged; A fire suppression device for an electric vehicle during charging, comprising:

2. In paragraph 1, The above discharge nozzle, A fire suppression device for an electric vehicle during charging, wherein a plurality of devices are installed at a set interval along the length of the hose section.

3. In paragraph 1, The above joint is, A body having a cylindrical shape in which the fire hose is positioned; and A cover installed at the end of the above main body to secure the fire hose; A fire suppression device for an electric vehicle during charging, comprising:

4. In paragraph 3, The above cover, A hole formed through which the hose portion of the fire hose is positioned; and A cut portion that connects the hole to the outside by cutting off a portion; A fire suppression device for an electric vehicle during charging, comprising:

5. In paragraph 4, The above cover is connected to the main body through a hinge, A fire suppression device for an electric vehicle while charging, wherein the above-mentioned cut portion is located in the opposite direction of the hinge portion based on the center of the above-mentioned cover.

6. In paragraph 4, The above cover is connected to the main body through a hinge, A locking part coupled with the above main body; A fire suppression device for an electric vehicle during charging, further comprising:

7. In paragraph 3, The above joint is, A spring inserted inside the above body; and A spring cover coupled to one end of the cover side of the above spring; Including, A fire suppression device for an electric vehicle while charging, wherein when the fire hose is inserted into the coupling port, the spring cover comes into contact with a standardized coupler among the parts of the fire hose to compress the spring.

8. In paragraph 3, The above joint is, A sealing portion located at least one of between the end of the main body and the cover and between the cover and a coupler included in the fire hose; A fire suppression device for an electric vehicle during charging, further comprising:

9. In paragraph 1, The above hose part, A through hole formed by a portion penetrating through it; Including, A sprinkler nozzle coupled to the above through hole and spraying water supplied through the hose portion; A fire suppression device for an electric vehicle during charging, further comprising:

10. In paragraph 9, The screw thread included in the above sprinkler nozzle is inserted into the above through hole, Two nuts screwed into the screw thread with the hose section interposed between them; A fire suppression device for an electric vehicle during charging, further comprising:

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