Fire extinguishing system for electric vehicles

Abstract

The present invention provides a device that directly extinguishes fires in electric vehicles and improves the efficiency of fire detection. [Solution] The electric vehicle fire extinguishing system 100 has a connector that extends a hollow passage configured in the battery compartment of the electric vehicle to the surface of the vehicle body structure. In one embodiment, the connector is connected to a corresponding connector, piping and control panel outside the vehicle and an external supply of fire extinguishing agent. When a detector senses a fire, it sends a message to the control panel, which automatically opens the valve of the fire extinguishing agent pipe and releases the agent. In another embodiment, the connector is connected to a corresponding connector, piping and an external supply of a fire extinguishing water source outside the vehicle. The valve of the fire extinguishing water source pipe is opened manually and the water source is released. In both embodiments, the agent or water source released directly extinguishes the fire by passing through the piping, connector and vehicle passage, thereby rapidly shortening the fire extinguishing time and reducing the amount of fire extinguishing material used and the loss of disaster.

Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguishing devices, and particularly to a fire extinguishing device for electric vehicles.

Background Art

[0002] Generally, the battery compartment of an electric vehicle is designed on the vehicle chassis and is in a state very close to being airtight. Therefore, when a fire breaks out inside the battery compartment, only a large amount of fire extinguishing agent can be sprayed from the outside of the battery compartment over a long period of time. It attempts to achieve the principle of finally completely extinguishing the internal fire by dissipating heat from the outside. However, in reality, it is not helpful in suppressing the continuous accumulation of thermal runaway energy that constantly occurs inside the airtight battery compartment, and the central position of the fire still cannot meet the conditions for directly reducing temperature and thus extinguishing the fire. For this reason, there is a possibility that the corresponding fire extinguishing effect will occur only after continuously consuming manpower, materials, and financial resources until the battery fuel spontaneously cuts off or tends to burn out.

[0003] Also, currently, all detection elements for activating the spraying of fire extinguishing agents in parking lots are attached to the parking lot structure and cannot directly detect the initial-stage fire caused by thermal runaway in the battery compartment of an electric vehicle whose occurrence time is unknown. It is possible that the detection element will operate and further activate the spraying of the fire extinguishing agent only when the fire source melts the battery compartment and spreads outside the vehicle chassis to catch fire and direct fire appears. However, at this time, thermal runaway has already occurred inside the battery compartment and cannot be stopped. Therefore, the existing fire detection elements in parking lots cannot timely detect and receive the thermal runaway situation inside the battery compartment, and naturally, they cannot issue an order to spray the fire extinguishing agent. For this reason, the early warning notification of the initial-stage fire of an electric vehicle and the optimal fire extinguishing timing are missed.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of the above, the present invention provides a device that directly extinguishes fires in electric vehicles and improves fire detection efficiency, in order to solve the problems present in the prior art, and to satisfy the need to detect fires in a timely, accurate, and rapid manner, shorten the time required for firefighting, and reduce the amount of fire extinguishing agent used and the resulting disaster losses. [Means for solving the problem]

[0005] To achieve the above objective, the present invention provides a fire extinguishing device for electric vehicles, the device including an in-vehicle fire extinguishing agent passage unit that includes an in-vehicle fire extinguishing agent passage defined by a staggered passage structure cavity originally formed by the gaps between each battery module in the battery chamber and the in-vehicle structure of the electric vehicle; a fixed female connector for transporting a fixed fire extinguishing agent; a fixed male connector for power grounding whose bottom is fixed to the vehicle body structure; a fixed male connector for fire detection piping whose bottom fire detection piping is inserted into the in-vehicle fire extinguishing agent passage and which has a terminator at the end of the piping; a cavity that forms a distance separating the fixed male connector for power grounding and the fixed male connector for fire detection piping; and a movable door cover, the device including a fixed embedded connector unit.

[0006] In one embodiment, the fixed embedded connector unit is joined to an external movable connector unit which is fully compatible with each other and includes an external movable fire extinguishing agent male connector whose bottom mounting base is connected to a fire extinguishing agent pipe, an external movable power ground female connector whose bottom is connected to a power ground pipe, an external movable fire detection pipe female connector whose bottom is connected to a fire detection pipe, a handle grip that covers the connection portion between the external movable fire extinguishing agent male connector and these pipes, and a filling portion that separates the external movable power ground female connector and the external movable fire detection pipe female connector.

[0007] In one embodiment, the external movable connector unit is connected to an extension unit that allows all piping, including power grounding piping, fire detection piping, fire extinguishing agent piping, external movable fire extinguishing agent female connector, and storage panel, to be movable.

[0008] In one embodiment, the extension unit is first tapped to a control panel unit which includes a power grounding pipe connected to a grounding pipe via a tangential terminal point, a fire detection pipe and an external power supply pipe connected to tangential terminal points on a control board, and a box containing an area fire lamp, an alarm buzzer, a box-type switch, and a manual selection control switch.

[0009] In one embodiment, the extension unit is further tapped to an external fire extinguishing agent supply unit which includes a fixed fire extinguishing agent male connector, a solenoid valve whose attached piping for the controlled source is branched and connected to a tangential terminal point on the control board of the control panel unit, and an external fire extinguishing agent supply piping.

[0010] In one embodiment, the external movable connector unit further includes a protective cover that includes a blind cover for the fire extinguishing agent female connector, a fire detection piping male connector, and a terminator.

[0011] This allows the system to receive and confirm the initial state of a fire via the fire detection piping in the in-vehicle fire extinguishing agent passage unit when thermal runaway has just begun in the battery compartment of the vehicle chassis. The fire signal can be transmitted to the control board of the control panel unit, which can then activate the solenoid valve and command it to release the fire extinguishing agent from the external supply unit. The released fire extinguishing agent travels sequentially through the external fire extinguishing agent supply piping, solenoid valve, fixed fire extinguishing agent male connector, external movable fire extinguishing agent female connector, fire extinguishing agent piping, external movable fire extinguishing agent male connector, fixed fire extinguishing agent transport female connector, and in-vehicle fire extinguishing agent passage to reach the inside of the crack in the battery module in the initial stages of the fire, where it directly sprays the fire extinguishing agent to extinguish the fire and preventively and rapidly cools the entire battery compartment, shortening the fire extinguishing time and reducing the amount of fire extinguishing agent used and the resulting disaster loss.

[0012] To achieve the above objectives, the present invention further provides another embodiment providing an emergency alternative firefighting device for an electric vehicle, including the in-vehicle fire extinguishing agent passage unit and the fixed embedded connector unit of the above embodiment. The fixed embedded connector unit is further joined to an external movable connector and water pipe unit, which includes an external movable water pipe male connector, a metal wire with one end tied to the external movable water pipe male connector and the other end tied to a grounded fixture, a movable water pipe with one end connected to a mounting base at the bottom of the external movable water pipe male connector and the other end connected to a mounting base at the bottom of the external movable water pipe female connector, and an external movable water pipe female connector. The external movable connector and water pipe unit is joined to an external supply unit for a fire extinguishing water source, which includes a male connector, a fire hydrant, and an external supply piping for the fire extinguishing water source.

[0013] Consequently, when a fire occurs while the vehicle is traveling on a road or highway, the battery modules in the battery compartment of the electric vehicle will rapidly progress from a single thermal runaway fire to several thermal runaway fires because they will not be supported by the fire suppression system of the first embodiment, which includes the external movable connector unit, the extension unit that can move all the piping, the control panel unit, and the external supply unit for the fire suppression agent. For this reason, it is preferable to use an emergency alternative fire suppression device for electric vehicles to rescue the disaster, and the method is as follows. On the one hand, metal wires are tied to the external movable water pipe male connector and grounding equipment respectively to eliminate the risk of electric shock to rescue workers. On the other hand, under the conditions of a reliable water source, the fire is extinguished by manually activating the fire hydrant. The released water travels sequentially through the external water supply piping, fire hydrant, male connector, external movable water pipe female connector, movable water pipe, external movable water pipe male connector, fixed fire extinguishing agent transport female connector, and in-vehicle fire extinguishing agent passage to reach the inside of the crack in the burning battery module, extinguishing the fire directly with water, and rapidly cooling the entire battery compartment, shortening the firefighting time and reducing the amount of fire extinguishing water and disaster losses. [Brief explanation of the drawing]

[0014] [Figure 1]This is a schematic diagram of the first embodiment of the present invention. [Figure 2A] This is a schematic diagram of the fixed-type embedded connector unit of the present invention. [Figure 2B] Figure 2A is a schematic diagram of the fixed, embedded connector unit from a different angle. [Figure 3A] This is a schematic diagram of the external movable connector unit according to the first embodiment of the present invention. [Figure 3B] Figure 3A is a schematic diagram of the external movable connector unit from a different angle. [Figure 4A] This is a schematic diagram of the extension unit, the control panel unit, and the external supply unit for the fire extinguishing agent according to the first embodiment of the present invention. [Figure 4B] This is a schematic diagram of the external appearance of a control panel unit according to the first embodiment of the present invention. [Figure 5A] This is a schematic diagram showing the protective cover of the first embodiment of the present invention joined to the protective cover and in a waiting state. [Figure 5B] This is a schematic diagram showing the protective cover of the first embodiment of the present invention separated from the protective cover and in a waiting state. [Figure 6] This is a schematic diagram of a second embodiment of the present invention. [Figure 7] This is a schematic diagram of an external movable connector, a water pipe unit, and an external supply unit for a fire-fighting water source according to a second embodiment of the present invention. [Modes for carrying out the invention]

[0015] Referring to Figure 1, a schematic diagram of a first embodiment of the present invention, illustrates the disclosed fire extinguishing system 100 for electric vehicles. The fire extinguishing system 100 for electric vehicles includes an in-vehicle fire extinguishing agent passage unit 20 and a fixed embedded connector unit 30, the in-vehicle fire extinguishing agent passage unit 20 including an in-vehicle fire extinguishing agent passage 22, the in-vehicle fire extinguishing agent passage 22 being defined by a staggered passage structure cavity (not shown) originally formed by the gaps between each battery module in the battery compartment and the in-vehicle structure 21 of an electric vehicle (not shown), in other words, the in-vehicle fire extinguishing agent passage 22 is a direct conversion of the original battery compartment and the in-vehicle structure 21 of the electric vehicle. The in-vehicle fire extinguishing agent passage 22 extends to the surface of the in-vehicle structure 21 and is connected to one end of the fixed embedded connector unit 30. In this embodiment, the other end of the fixed embedded connector unit 30 is sequentially connected to an external movable connector unit 40, an extension unit 50 that can move all the piping, a control panel unit 60, and an external fire extinguishing agent supply unit 70.

[0016] Referring together to Figures 2A and 2B, we have a schematic diagram of the fixed embedded connector unit 30 of the present invention. The fixed embedded connector unit 30 includes a fixed female connector 31 for transporting fire extinguishing agents, a fixed male connector 32 for power grounding, a fixed male connector 33 for fire detection piping, a cavity 37, and a movable door cover 36. The fixed female connector 31 for transporting fire extinguishing agents communicates directly with the in-vehicle fire extinguishing agent passage 22, and the annular inner wall of the fixed female connector 31 for transporting fire extinguishing agents is further provided with several movable baffles 31a for locking and loosening (detailed later) the male connectors that are connected to each other. One end of the fixed male connector 32 for power grounding is directly fixed to the in-vehicle structure 21. Multiple in-vehicle fire detection pipes 34, which are introduced into the in-vehicle fire extinguishing agent passage 22, are connected to one end of the fixed fire detection pipe male connector 33, and terminators 35 are provided at the tail ends of these in-vehicle fire detection pipes 34. The cavity 37 is provided between the fixed power grounding male connector 32 and the fixed fire detection pipe male connector 33, that is, it separates the fixed power grounding male connector 32 and the fixed fire detection pipe male connector 33 by a perforation method and forms a safety distance between them. The door edge of the movable door cover 36 is fixed to the in-vehicle structure 21 of the electric vehicle and opens and closes from the other door edge when operating or stopping the use of the fixed embedded connector unit 30. In one embodiment, at least one hinge (not shown) is provided on the door edge of the movable door cover 36 in order to fix the movable door cover 36 to the in-vehicle structure 21.

[0017] Referring together to Figures 3A and 3B, a schematic diagram of the external movable connector unit 40 of the first embodiment of the present invention is shown. The external movable connector unit 40 includes an external movable fire extinguishing agent male connector 41, an external movable power ground female connector 42, an external movable fire detection piping female connector 43, a filling section 47, and a handle grip 48. The external movable fire extinguishing agent male connector 41 can be connected to and disconnected from the fixed fire extinguishing agent transport female connector 31. The outer annular wall of the external movable fire extinguishing agent male connector 41 is provided with a movable male connector ring 41a and a male connector mounting seat 41b. When introducing the external movable fire extinguishing agent male connector 41 into the fixed fire extinguishing agent transport female connector 31, the movable baffles 31a can be used to lock the male connector mounting seat 41b, achieving the objective of complete connection. Conversely, when leading the external movable fire extinguishing agent male connector 41 out of the fixed fire extinguishing agent transport female connector 31, the movable baffles 31a can be forced to loosen the male connector mounting seat 41b by pressing the movable male connector ring 41a, achieving the objective of complete disconnection. The external movable power grounding female connector 42 can be connected to and disconnected from the fixed power grounding male connector 32. The external movable fire detection piping female connector 43 can be separated from or joined to the fixed fire detection piping male connector 33. The filling portion 47 is provided between the external movable power grounding female connector 42 and the external movable fire detection piping female connector 43, that is, by filling, the external movable power grounding female connector 42 and the external movable fire detection piping female connector 43 are separated, forming a safety distance between them, and the filling portion 47 can be separated from or joined to the cavity 37.The handle grip 48 includes a fire extinguishing agent pipe 44 connected to a mounting base at the bottom of the external movable fire extinguishing agent male connector 41, a power grounding pipe 45 connected to the external movable power grounding female connector 42, and a fire detection pipe 46 connected to the external movable fire detection pipe female connector 43. The handle grip 48 covers the connection portion between the external movable fire extinguishing agent male connector 41 and the fire extinguishing agent pipe 44, the connection portion between the external movable power grounding female connector 42 and the power grounding pipe 45, and the connection portion between the external movable fire detection pipe female connector 43 and the fire detection pipe 46. In one embodiment, the handle grip 48 may be provided between the fixed embedded connector unit 30 and the external movable connector unit 40, which provides an easier, quicker, and simpler method of joining and separating.

[0018] Referring to Figure 4A, a schematic diagram of the extension unit 50, the control panel unit 60, and the fire extinguishing agent external supply unit 70 of the first embodiment of the present invention, which are capable of moving all the piping. The extension unit 50 receives the piping extending from the end of the handle grip 48 and includes the fire extinguishing agent piping 44, the power grounding piping 45, and the fire detection piping 46, and has a storage panel 51 for housing these extension piping. The fire extinguishing agent external supply unit 70 includes a solenoid valve 71, a fire extinguishing agent external supply piping 74 communicating with one end of the solenoid valve 71, and a fixed fire extinguishing agent male connector 73 connected to the other end of the solenoid valve 71. The control panel unit 60 is connected to the extension unit 50 and performs the following management on the fire extinguishing agent piping 44, the power grounding piping 45, and the fire detection piping 46. (1) The power grounding pipe 45 is connected to the earth grounding pipe 63 via the tangential terminal point 62b inside the box of the control panel unit 60 to ensure that electric shock accidents do not occur to the electric vehicle fire extinguishing system 100. (2) The fire detection pipe 46, the external power supply pipe 64, and the pipe 75 of the controlled source 72 of the solenoid valve 71 are connected to the control board 61 via a plurality of corresponding tangential terminal points 62a, thereby constructing an automatic monitoring system. (3) The fire extinguishing agent pipe 44 is connected to the mounting base at the bottom that is pre-fitted to the external movable fire extinguishing agent female connector 53. Several movable baffles 53a are provided on the annular inner wall of the external movable fire extinguishing agent female connector 53 for locking or loosening the fixed fire extinguishing agent male connector 73 of the external supply unit 70 of the fire extinguishing agent that are connected to each other.When introducing the fixed fire extinguishing agent male connector 73 into the internal part of the external movable fire extinguishing agent female connector 53, these movable baffles 53a can be utilized to lock the connector mounting seat 73b of the fixed fire extinguishing agent male connector 73, thereby achieving the purpose of complete joining. Conversely, when导出 the fixed fire extinguishing agent male connector 73 from the external movable fire extinguishing agent female connector 53, by pushing the connector movable ring 73a of the fixed fire extinguishing agent male connector 73, these movable baffles 53a can be forced to loosen the connector mounting seat 73b, thereby achieving the purpose of complete separation. The tangent terminal point 62a is used for the entry of the fire detection pipe 46, the external power supply pipe 64, and the pipe 75 of the controlled source 72 to the control board 61. The tangent terminal point 62b is a protective measure that can induce the sudden abnormal current signal pipe to instantaneously discharge to the ground through the control board 61.

[0019] Also, referring to FIG. 4B simultaneously, it is an external schematic diagram of the control panel units 60 and 60a of the first embodiment of the present invention. Here, the automatic monitoring of one fire extinguishing device 100 for an electric vehicle can only be performed by the control panel unit 60, which is suitable for the environment of a single electric vehicle parking space. In the case of the environment of multiple electric vehicle parking spaces, the control panel unit 60a for centralized management and automatic monitoring is more suitable. Compared with the control panel unit 60, there are more main fire lamps 66a. In addition to the increase in the area fire lamps 66, the corresponding tangent terminal points, and the connected pipes according to the number of these electric vehicle parking spaces, both the control panel units 60 and 60a include, on the appearance, a box surface 65 for isolating the direct contact between the inside and outside of the box, an alarm buzzer 67, a box surface switch 68 for opening and closing the box surface 65, and a manual selection control switch 69.

[0020] The features and technical solutions of the present invention can only achieve the desired effects when used in combination with the usage method of the present invention. Therefore, as described below, it will be further described in more detail.

[0021] Furthermore, referring to Figures 5A and 5B simultaneously, we see a schematic diagram of the protective cover of the first embodiment of the present invention when it is attached and waiting to be used, and a schematic diagram of it when it is separated from the protective cover. When the electric vehicle fire extinguishing device 100 is idle, there is no corresponding fixed embedded connector unit 30 that can be connected to the external movable connector unit 40. Therefore, the external movable connector unit 40 approaches the storage panel 51 and contracts the panel as much as possible, and the external movable fire detection piping female connector 43 connects to the fixed fire detection piping male connector 33. To ensure smooth electrical connection at all times when joining, the fire detection piping 46, the external movable fire detection piping female connector 43, the fixed fire detection piping male connector 33, and the in-vehicle fire detection piping 34 are sequentially connected, forming an electronic circuit via the terminator 35, and maintaining an active current (fire monitoring current) to send a signal to the control board 61 that it is receiving automatic monitoring. The external movable connector unit 40 has a protective cover 401 to protect it in order to solve the problem that it is difficult to maintain in a typical parking environment. The operation method of the protective cover 401 is as follows: The handle grip 48 is pressed to introduce the external movable fire extinguishing agent male connector 41 into the blind cover 402 of the fire extinguishing agent female connector, and then the male connector mounting seat 41b is locked and joined using a plurality of movable baffles 402a, and at the same time, the external movable fire detection piping female connector 43 also completes the connection with the fire detection piping male connector 403. Furthermore, a terminator 404 is provided at the rear end of the base of the fire detection piping male connector 403 to achieve the function of replacing the terminator 35.

[0022] Next, when starting to use the electric vehicle fire extinguishing system 100, the external movable fire extinguishing agent male connector 41 must be detached from the protective cover 401. In this case, the movable baffles 402a of the blind cover 402 of the fire extinguishing agent female connector are forced to press the movable ring 41a of the male connector to loosen and separate the mounting seat 41b of the male connector, and at the same time, the handle grip 48 is pulled to separate the external movable fire detection piping female connector 43 and the fire detection piping male connector 403 from each other, thereby completing the separation.

[0023] On the other hand, after the electric vehicle (not shown) enters the parking space and comes to a standstill, in order to operate the external movable connector unit 40, the movable door cover 36 is pulled open from the vehicle body, the handle grip 48 is removed from the storage panel 51, and then all the movable piping of the extension unit 50 is pulled together and brought close to the fixed embedded connector unit 30, and the operation method is as follows: The handle grip 48 is pushed to connect the external movable power ground female connector 42 and the fixed power ground male connector 32, and further, the external movable fire detection piping female connector 43 and the fixed fire detection piping male connector 33 are connected, and the external movable fire extinguishing agent male connector 41 is introduced into the fixed fire extinguishing agent transport female connector 31, and the male connector mounting seat 41b is locked using these movable baffles 31a to complete the connection.

[0024] When a fire occurs in the electric vehicle, the in-vehicle fire detection piping 34 of the electric vehicle fire extinguishing system 100 detects the fire by the ingress of fire products, skips the terminator 35, and directly activates the in-vehicle fire detection piping 34. This causes the original fire monitoring current to be abruptly changed to a fire activation current via the fixed fire detection piping male connector 33, the external movable fire detection piping female connector 43, and the fire detection piping 46, notifying the control board 61. Subsequently, the area fire lamp 66 begins to brighten, and the alarm buzzer 67 begins to sound (emits an alarm sound), alerting people near the control panel unit 60 at this point by stimulating their sight and hearing, respectively. This person can manually operate the manual selection control switch 69 to choose whether to interfere with the automatic control of the control panel unit 60 or to leave the automatic control to the control panel unit 60. After a preset time has elapsed, the control board 61 transmits a power signal to the controlled source 72 via the piping 75, ordering the solenoid valve 71, which is normally closed, to open. The fire extinguishing agent (e.g., water) then travels sequentially through the fire extinguishing agent external supply piping 74, the solenoid valve 71, the fixed fire extinguishing agent male connector 73, the external movable fire extinguishing agent female connector 53, the fire extinguishing agent piping 44, the external movable fire extinguishing agent male connector 41, the fixed fire extinguishing agent transport female connector 31, and the in-vehicle fire extinguishing agent passage 22, finally reaching the inside of the crack in the battery module in the initial stages of the fire, where the fire extinguishing agent is directly sprayed to extinguish the fire and preventively cool the entire battery compartment, rapidly shortening the fire extinguishing time and reducing the amount of fire extinguishing agent used and the damage caused by the disaster.

[0025] However, if no fire occurs in the electric vehicle, the electric vehicle fire extinguishing system 100, in normal monitoring mode, forms an electronic circuit in which the fire detection pipe 46, the external movable fire detection pipe female connector 43, the fixed fire detection pipe male connector 33, the in-vehicle fire detection pipe 34, and the terminator 35 are interconnected, and maintains an active current (fire monitoring current), continuously returning it to the control board 61, effectively controlling the fire extinguishing agent, activating it quickly to extinguish the fire while continuously and automatically monitoring for any initial stage fires that may occur at any time, and when the electric vehicle leaves the parking space, it leads the external movable fire extinguishing agent male connector 41 out of the fixed fire extinguishing agent transport female connector 31, pushing the male connector movable ring 41a, By forcing these movable baffles 31a to loosen the male connector mounting seat 41b, complete separation is achieved, and by directly pulling out the handle grip 48, the external movable power ground female connector 42 and the fixed power ground male connector 32 are completely separated, or the external movable fire detection piping female connector 43 and the fixed fire detection piping male connector 33 are forced to completely separate, and after confirming that the fixed embedded connector unit 30 and the external movable connector unit 40 are completely separated, the movable door cover 36 is closed and placed into the vehicle body, allowing the electric vehicle to move away and returning to the ready-to-use configuration of the electric vehicle fire extinguishing device 100 as shown in Figure 5A.

[0026] Referring to Figure 6, which is a schematic diagram of a second embodiment of the present invention, the differences from the first embodiment are as described below.

[0027] In the present invention, the external movable connector unit 40, extension unit 50, control panel unit 60, and external fire extinguishing agent supply unit 70 of the electric vehicle fire extinguishing system 100 are installed in a specific location (e.g., a parking space). Therefore, if the electric vehicle moves away from that specific location and a fire occurs in the same scene, such as on a road or highway, the fire extinguishing system of the external movable connector unit 40, extension unit 50, control panel unit 60, and external fire extinguishing agent supply unit 70 will no longer be supported, and the battery modules in the battery compartment of the electric vehicle will rapidly progress from a single thermal runaway fire state to multiple thermal runaway fire states. In contrast, the second embodiment of this invention provides an emergency alternative, in which the electric vehicle fire extinguishing system 200 includes an in-vehicle fire extinguishing agent passage unit 20, a fixed embedded connector unit 30, an external movable connector and water pipe unit 240, and an external supply unit 270 of a fire extinguishing water source connected to the external movable connector and water pipe unit 240. The structure of the in-vehicle fire extinguishing agent passage unit 20 and the fixed embedded connector unit 30 is the same as in the first embodiment, and a detailed explanation is omitted here. The external movable connector and water pipe unit 240 includes an external movable water pipe male connector 241, a movable water pipe 244, and an external movable water pipe female connector 246, and the external movable connector and water pipe unit 240 further includes a metal wire (e.g., a wire) with one end 245a tied to the external movable water pipe male connector 241 and the other end 245b tied to a grounded device. The external supply unit 270 for the fire extinguishing water source includes an external supply pipe 274 for the fire extinguishing water source and a fire hydrant 271 connected to the external supply pipe 274 for the fire extinguishing water source.

[0028] Referring together to Figures 2 and 7, Figure 2 is a schematic diagram of the fixed embedded connector unit of the present invention, and Figure 7 is a schematic diagram of the external movable connector, water pipe unit 240 and external supply unit 270 for fire extinguishing water source of a second embodiment of the present invention. If the electric vehicle fire extinguishing system 200 is already on fire, when rescue workers arrive at the scene, they must first introduce the male connector 273 of the fire hydrant 271 into the external movable water pipe female connector 246 in order to achieve the objective of complete connection, and then use the multiple movable baffles 246a of the external movable water pipe female connector 246 to lock the male connector mounting seat 273b of the male connector 273. Subsequently, the external movable water pipe male connector 241, which is tied to one end 245a of the metal wire, is lifted, and then the movable water pipe 244 is pulled forward toward the fixed embedded connector unit 30, and the other end 245b of the metal wire is tied to a grounded device such as a passing streetlamp or traffic light to eliminate the risk of electric shock to people that may occur during firefighting. The movable water pipe 244 can be used to move the burning electric vehicle away from the external supply unit 270 of the firefighting water source by a safe rescue distance. Rescuers can simultaneously operate another water supply pipe, pry open the movable door cover 36 with a crowbar while spraying water on it, and continue to spray water as much as possible into the fire extinguishing agent passage 22 inside the vehicle to dissipate heat.Subsequently, at the right moment, the external movable water pipe male connector 241 is introduced into the fixed fire extinguishing agent transport female connector 31, and the male connector mounting seat 241b is locked and connected using the movable baffle 31a. Then, the switch of the fire hydrant 271 is manually turned to open, and the water source sequentially passes through the fire extinguishing water source external supply pipe 274, the fire hydrant 271, the male connector 273, the external movable water pipe female connector 246, the movable water pipe 244, the external movable water pipe male connector 241, the fixed fire extinguishing agent transport female connector 31, and the in-vehicle fire extinguishing agent passage 22, finally reaching the inside of the burning battery compartment. By directly spraying water, the high-temperature conditions for thermal runaway inside the battery compartment are forcibly eliminated, and because the necessary elements are missing, combustion itself cannot occur. By cleaning the remaining fire source in the electric vehicle with another water supply pipe, the fire extinguishing time can be significantly reduced, and the amount of fire extinguishing water and disaster losses can be reduced.

[0029] As described above, after the fire is extinguished, the switch of the fire hydrant 271 is manually closed, and then, in order to lead the external movable water pipe male connector 241 out of the fixed fire extinguishing agent transport female connector 31 and achieve complete separation, the movable baffle 31a is forced by pressing the male connector movable ring 241a to loosen the male connector mounting seat 241b, then the ends 245a and 245b of the metal wire are removed, and then the male connector 273 of the fire hydrant 271 is connected to the external movable water pipe female connector To achieve the objective of leading out of 246 and completely separating it, the movable baffles 246a are forced by pressing the movable ring 273a of the male connector to loosen the mounting seat 273b of the male connector, and then the movable water pipe 244, the external movable water pipe male connector 241, and the external movable water pipe female connector 246 are wound up and coiled together to return both the external movable connector and the water pipe unit 240 and the external supply unit 270 of the fire-fighting water source to their original state and prepare for next use. [Explanation of symbols]

[0030] 100... Fire extinguishing system for electric vehicles 20... In-vehicle fire extinguishing agent passage unit 21…Interior structure 22... Passageway for fire extinguishing agents inside the vehicle 30…Fixed-type embedded connector unit 31...Female connector for fixed-type fire extinguishing agent transport 31a...Movable baffle 32... Fixed male connector for power grounding 33...Fixed fire detection piping male connector 34... In-vehicle fire detection piping 35... Terminator 36…Movable door cover 37...Cavity 40…External movable connector unit 401… Protective cover 402... Blind cover for female connector of fire extinguishing agent 402a...Movable baffle 403... Fire detection piping male connector 404... Terminator 41... External movable fire extinguishing agent male connector 41a...Male connector movable ring 41b...Male connector mounting base 42…External movable female connector for power grounding 43…External movable fire detection piping female connector 44... Fire extinguishing agent piping 45…Power grounding piping 46... Fire detection piping 47…Filling section 48...Handle grip 50…An extension unit that allows all piping to be moved. 51... Storage panel 53... External movable fire extinguishing agent female connector 53a...Movable baffle 60... Control panel unit 60a...Control panel unit 61... Control board 62a, 62b…Tangential terminal point 63... Ground-grounded piping 64…External power supply conduit 65…Box side 66... ​​Area fire lamp 66a...Main fire lamp 67… Alarm buzzer 68…Box-type switch 69…Manual selection control switch 70…External supply unit for fire extinguishing agents 71... Solenoid valve 72…Controlled source 73...Fixed fire extinguishing agent male connector 73a...Male connector movable ring 73b...Male connector mounting base 74... External supply piping for fire extinguishing agents 75... Piping 200... Fire extinguishing system for electric vehicles 240…External movable connector and water pipe unit 241... External movable water pipe male connector 241a...Male connector movable ring 241b...Male connector mounting base 244...Movable water pipe 245a, 245b... one end of a metal wire 246... External movable water pipe female connector 246a... Adjustable baffle 270... External supply unit for firefighting water source 271... Fire hydrant 273... Male connector 273a...Male connector movable ring 273b...Male connector mounting base 274...External water supply piping for fire extinguishing

Claims

1. An in-vehicle fire extinguishing agent passage unit including a staggered passage structure cavity originally formed by the gaps between each battery module in the battery chamber, and an in-vehicle fire extinguishing agent passage defined by the in-vehicle structure of the electric vehicle, A fixed, embedded connector unit is provided on the surface of the vehicle body structure and connected to the in-vehicle fire extinguishing agent passage, the fixed, embedded connector unit includes a fixed female connector for transporting fire extinguishing agent, a fixed male connector for power grounding, a fixed male connector for fire detection piping, a cavity, and a movable door cover, wherein the fixed female connector for transporting fire extinguishing agent communicates directly with the in-vehicle fire extinguishing agent passage, and a plurality of movable baffles are provided on the annular inner wall of the fixed female connector for transporting fire extinguishing agent, the base of the fixed male connector for power grounding is directly fixed to the in-vehicle structure, and the fixed male connector for fire detection piping has the in-vehicle fire extinguishing agent at one end. A fixed embedded connector unit is provided, comprising: multiple in-vehicle fire detection pipes introduced into a chemical passage are connected, and a first terminator is provided at the tail end of these in-vehicle fire detection pipes; the cavity is provided between the fixed power grounding male connector and the fixed fire detection pipe male connector to form a safe distance between the fixed power grounding male connector and the fixed fire detection pipe male connector; a hinge is provided on the door side of the movable door cover to fix the interior structure of the electric vehicle; and the movable door cover is opened or closed from another door side when the fixed embedded connector unit is operated or deactivated. Fire extinguishing system for electric vehicles.

2. An external movable connector unit is connected to one end of the fixed embedded connector unit that is not connected to the in-vehicle fire extinguishing agent passage, An extension unit that can move multiple pipes connected to one end of the external movable connector unit that is not connected to the fixed embedded connector unit, wherein these pipes include a first pipe section that needs to rely on automatic electrical control for automatic or manual fire monitoring, fire extinguishing control and elimination of electric shock accidents, and a second pipe section that needs to rely on the supply of external fire extinguishing agents to push the fire extinguishing agent into the vehicle and extinguish the fire when a fire occurs in an electric vehicle, and the extension unit that can move multiple pipes, A control panel unit that receives and houses the first piping portion from the extension unit, The present invention further includes an external supply unit for fire extinguishing agents connected to the second piping portion, The fire extinguishing device for electric vehicles according to claim 1.

3. The external movable connector unit is, External movable fire extinguishing agent male connectors, including a male connector movable ring and a male connector mounting seat, provided to correspond to a plurality of movable baffles of the fixed fire extinguishing agent transport female connector for coupling or uncoupling with each other, An external movable power grounding female connector is provided corresponding to the fixed power grounding male connector for connecting to or separating from each other, An external movable fire detection pipe female connector is provided corresponding to the fixed fire detection pipe male connector for connecting to or separating from each other, In order to form a safe distance between the external movable power grounding female connector and the external movable fire detection piping female connector, a filling portion is provided between the external movable power grounding female connector and the external movable fire detection piping female connector, and is provided corresponding to the cavity for coupling or separating from each other, A handle grip comprising a fire extinguishing agent pipe connected to a mounting base at the bottom of the external movable fire extinguishing agent male connector, a power grounding pipe connected to the external movable power grounding female connector, and a fire detection pipe connected to the external movable fire detection pipe female connector, wherein the handle grip covers the joint between the external movable fire extinguishing agent male connector and the fire extinguishing agent pipe, the joint between the external movable power grounding female connector and the power grounding pipe, and the joint between the external movable fire detection pipe female connector and the fire detection pipe, and wherein the handle grip is provided to the user's operation for joining or separating the fixed embedded connector unit and the external movable connector unit. The fire extinguishing device for electric vehicles according to claim 2.

4. The external movable connector unit further includes a protective cover, which is connected to the external movable connector unit to protect it when the external movable connector unit is not connected to the fixed embedded connector unit, wherein the protective cover includes a blind cover for a fire extinguishing agent female connector, a fire detection piping male connector, and a second terminator, the blind cover for the fire extinguishing agent female connector includes a plurality of movable baffles, which are provided to connect to or disconnect from the male connector mounting seat and the male connector movable ring of the external movable fire extinguishing agent male connector, the fire detection piping male connectors are provided to connect to or disconnect from the external movable fire detection piping female connector, and the second terminator is provided at the rear end of the base of the fire detection piping male connector. The fire extinguishing device for electric vehicles according to claim 3.

5. The extension unit receives the fire extinguishing agent piping, the power grounding piping, and the fire detection piping from the end of the handle grip, and the extension unit includes a storage panel and an external movable fire extinguishing agent female connector, the storage panel housing the fire extinguishing agent piping, the power grounding piping, and the fire detection piping, the mounting base at the bottom of the external movable fire extinguishing agent female connector into which the fire extinguishing agent piping is fitted, and the external movable fire extinguishing agent female connector includes a plurality of movable baffles, these movable baffles are provided to connect or disconnect from each other in accordance with the male connector mounting seat and male connector movable ring of the fixed fire extinguishing agent male connector of the external fire extinguishing agent supply unit. The fire extinguishing device for electric vehicles according to claim 3.

6. The control panel unit includes a box, a box switch for opening and closing the box, an area fire lamp that illuminates when a fire occurs in the electric vehicle, an alarm buzzer that emits an alarm sound when a fire occurs in the electric vehicle, a control board for detecting a fire, controlling fire extinguishing, activating functions to determine whether or not to manually intervene, and related protective measures after receiving a current signal, tangential terminals for providing access to the control board for fire detection piping, external power supply piping, and piping for controlled sources of solenoid valves, and a manual selection control switch provided for the user to manually interfere with the automatic control of the control board. The fire extinguishing device for electric vehicles according to claim 2.

7. The external supply unit for the fire extinguishing agent is, Inside is an external fire extinguishing agent supply pipe that is constantly filled with fire extinguishing agent, The system includes a controlled source having piping that communicates with the external fire extinguishing agent supply piping, the piping receiving a power signal from a control board and transmitting it to the controlled source to open and close a solenoid valve, thereby controlling whether or not to output the fire extinguishing agent, Includes a fixed fire extinguishing agent male connector, which includes a male connector mounting seat and a male connector movable ring provided to correspond to these movable baffles of the external movable fire extinguishing agent female connector of the extension unit for coupling or uncoupling with each other, The fire extinguishing device for electric vehicles according to claim 2.

8. An external movable connector and a water pipe unit are connected to one end of the fixed embedded connector unit that is not connected to the fire extinguishing agent passage inside the vehicle. The invention further includes an external supply unit for a fire-fighting water source, which is connected to an external movable connector and a water pipe unit, for supplying fire-fighting water when a fire occurs in an electric vehicle. The fire extinguishing device for electric vehicles according to claim 1.

9. The external movable connector and the water pipe unit are, External movable water pipe male connectors including male connector mounting seats and male connector movable rings provided corresponding to these movable baffles of the fixed fire extinguishing agent transport female connector for coupling or uncoupling with each other, A metal wire, one end of which is tied to the external movable water pipe male connector and the other end of which is tied to a grounded device, A movable water pipe, one end of which is fitted into the mounting base at the bottom of the external movable water pipe male connector, The movable water pipe includes a bottom mounting base fitted to the other end of the movable water pipe, and a plurality of movable baffles, and includes an external movable water pipe female connector provided to correspond to the male connector mounting seat and male connector movable ring of the male connector of the fire hydrant of the external supply unit of the fire extinguishing water source for connecting or separating from each other, The fire extinguishing device for an electric vehicle according to claim 8.

10. The external supply unit for the firefighting water source is, A fire hydrant including a male connector including a male connector mounting seat and a male connector movable ring, which are provided to correspond to multiple movable baffles of an external movable water pipe female connector for coupling or uncoupling with each other, Includes an external supply pipe for a fire-fighting water source, which is always filled with fire-fighting water, in order to be ready to push the water source out and extinguish the fire at any time, The fire extinguishing device for an electric vehicle according to claim 8.

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