FIRE EXTINGUISHING DEVICE FOR ELECTRIC VEHICLES

Abstract

FIRE EXTINGUISHING DEVICE FOR ELECTRIC VEHICLES The invention relates to a fire extinguishing device for an electric vehicle (100) comprising a structural cavity channel (22) formed in a battery compartment of the electric vehicle, and a connector (30) that extends the channel to a body surface of the vehicle (21). In one example, the connector is connected to a corresponding connector (40), a conduit, a control panel (60), and an external extinguishing agent supply unit (70) outside the vehicle. A detector sends a signal to the control panel upon detection of a fire, and an extinguishing agent conduit valve automatically opens to release the agent inside.In another example, the connector is linked to a corresponding connector, a pipe, and an external fire extinguishing water supply unit outside the vehicle, and a fire extinguishing water supply pipe is manually opened. Figure to be published with the abbreviation: Fig. 1.

Description

Title of the invention: FIRE EXTINGUISHING DEVICE FOR ELECTRIC VEHICLES technical field

[0001] The present invention relates to a fire extinguishing device, in particular a fire extinguishing device for an electric vehicle. Prior art

[0002] Electric vehicles generally have a battery compartment located within the vehicle chassis and configured in a nearly sealed state. When a fire breaks out inside the battery compartment, the only available method is to spray a large quantity of extinguishing agent for an extended period from outside the battery compartment in an attempt to dissipate the heat and thus passively achieve complete fire suppression. However, this approach is ineffective in suppressing the continuous accumulation of thermal runaway energy generated internally within the sealed battery compartment, and the core of the fire still cannot be directly cooled or extinguished.Therefore, effective fire suppression can only be achieved after a prolonged and significant consumption of labor, materials, and financial resources, passively waiting for the battery fuel to either extinguish itself or burn completely.

[0003] Furthermore, all the detection systems currently used in parking garages to trigger the spraying of extinguishing agents are installed as part of the parking garage structure and therefore cannot directly detect early thermal runaway events that suddenly occur in the battery compartment of an electric vehicle. These detection systems only activate and trigger the spraying of extinguishing agents once the fire has spread beyond the battery compartment, beyond the vehicle chassis, and produced visible flames. However, by that point, thermal runaway has already occurred inside the battery compartment and cannot be mitigated.Consequently, existing fire detection systems in parking lots are unable to immediately detect and identify thermal runaway signals inside the battery compartment. They also cannot issue instructions to activate the spraying of extinguishing agents, thus missing opportunities for early warnings in the event of a fire and exceeding the optimal time window for extinguishing electric vehicle fires. Summary of the invention

[0004] In view of this, in order to solve the problems existing in the prior art, the present invention proposes a device for directly extinguishing a fire and improving the fire detection efficiency for an electric vehicle, so as to meet the needs for accurate and real-time fire detection, to reduce the fire extinguishing time and to minimize the amount of extinguishing agent and the associated damage caused by the fire.

[0005] To achieve the aforementioned objective, the present invention proposes a fire suppression device for electric vehicles. The fire suppression device for electric vehicles comprises an on-board extinguishing agent channel unit, including an on-board extinguishing agent channel defined by a stepped channel formed by spaces between a plurality of battery modules in a battery compartment and by an on-board structure of an electric vehicle. The fire suppression device for electric vehicles further comprises a fixed integrated connector unit, disposed on a surface of a vehicle body structure and connected to the on-board extinguishing agent channel, the fixed integrated connector unit comprising a fixed female connector for extinguishing agent routing, a first fixed male connector for an electrical grounding conductor,a second fixed male connector for a fire detection conduit, a cavity and a movable door cover, the fixed female connector for an extinguishing agent conduit being directly connected to the on-board extinguishing agent channel, and an annular inner wall of the fixed female connector having a plurality of movable deflectors, a base of the first fixed male connector for the electrical grounding conduit being directly fixed to the on-board structure, one end of the second fixed male connector for the fire detection conduit being connected to a plurality of on-board fire detection conduits introduced into the on-board extinguishing agent channel, and a first terminal device being disposed at one tail end of the plurality of on-board fire detection conduits, the cavity being disposed between the first fixed male connector and the second fixed male connector to form a safety distance between them,one side of the movable door cover comprising a hinge fixed to the onboard structure of the electric vehicle, such that, when the fixed integrated connector unit is activated or deactivated, the movable door cover is opened or closed from another side of the movable door cover.

[0006] Advantageously, the electric vehicle fire extinguishing device further comprises an external mobile connector unit, connected to one end of the fixed integrated connector unit not connected to the on-board extinguishing agent channel; an extension unit for receiving a plurality of conduits in a mobile manner, connected to one end of the external mobile connector unit not connected to the fixed integrated connector unit, the plurality of conduits comprising a first conduit portion configured to depend on an electrical supply for automatic control, to monitor whether fire protection is in automatic or manual mode, to control fire extinguishing and to prevent accidents by electric shock, and a second conduit portion configured to depend on an external supply of an extinguishing agent to distribute the extinguishing agent in the vehicle in order to extinguish the fire in the electric vehicle; a control panel unit, configured to receive and house the first conduit portion from the extension unit; and an external extinguishing agent supply unit, connected to the second conduit portion.

[0007] Advantageously, the external mobile connector unit comprises an external mobile male connector for conveying extinguishing agent, comprising a movable male connector ring and a male connector base, the movable male connector ring and the male connector base being arranged in correspondence with a plurality of movable deflectors of the fixed female connector for conveying extinguishing agent so as to be engaged with or disengaged from each other; a first external mobile female connector for the electrical grounding conductor, arranged in correspondence with the first fixed male connector for the electrical grounding conductor so as to be engaged with or disengaged from each other;a second external movable female connector for the fire detection conduit, arranged in correspondence with the second fixed male connector for the fire detection conduit so as to be engaged with or disengaged from each other; a filler element, arranged between the first external movable female connector for the electrical grounding conduit and the second external movable female connector for the fire detection conduit, to form a safety distance between them, the filler element being arranged in correspondence with the cavity so as to be engaged with or disengaged from each other;and a handle, comprising a fire extinguishing agent conduit connected to a lower base of the external mobile male connector for fire extinguishing agent delivery, an electrical grounding conduit connected to the first external mobile female connector for the electrical grounding conduit, and a fire detection conduit connected to the second external mobile female connector for the fire detection conduit; the handle enclosing a connecting portion between the external mobile male connector and the fire extinguishing agent conduit, a connecting portion between the first external mobile female connector and the electrical grounding conduit, and a connecting portion between the second mobile female connector; external and fire detection conduit, and the handle being configured to be operated by a user to engage or disengage the fixed integrated connector unit with or from the external mobile connector unit.

[0008] Advantageously, the external mobile connector unit further comprises a protective cover, when the external mobile connector unit is not connected to the fixed integrated connector unit, the protective cover being connected to the external mobile connector unit to protect the external mobile connector unit, the protective cover comprising a blind cover, configured in the same manner as the fixed female connector for conveying extinguishing agent, a male connector for the fire detection line, and a second terminal device, the blind cover comprising a plurality of movable deflectors, which are arranged in correspondence with the male connector base and the movable male connector ring of the external mobile male connector for conveying extinguishing agent, so as to be engaged with or disengaged from each other,the male connector for the fire detection line being arranged opposite the second external movable female connector for the fire detection line so that they can be engaged with or disengaged from each other; and the second terminal device being arranged at one tail end of a base of the male connector for the fire detection line.

[0009] Advantageously, the extension unit receives the extinguishing agent line, the electrical grounding line, and the fire detection line from the end of the handle, the extension unit comprising a storage tray and an external movable female connector for extinguishing agent routing, and the storage tray receiving the extinguishing agent line, the electrical grounding line, and the fire detection line, a lower base of the external movable female connector for extinguishing agent routing being fitted with the extinguishing agent line, and the external movable female connector comprising the plurality of movable deflectors,which are arranged in correspondence with the male connector base and the movable male connector ring of the fixed male connector for the routing of extinguishing agent from the external supply unit to the extinguishing agent in order to be engaged with or disengaged from each other.

[0010] Advantageously, the control panel unit comprises a housing panel; a housing panel switch configured to open or close the housing panel; a zonal fire indicator configured to illuminate when the electric vehicle is on fire; an alarm horn configured to emit a warning sound when the electric vehicle is on fire; and a control board configured to control protection functions and measures. fire detection, fire suppression control and manual intervention, based on a received signal; a wiring terminal block configured to allow the fire detection line, an external power supply line and a line from a solenoid valve controlled source to be connected to the control board; and a manual selection control switch configured to allow a user to manually interfere with the automatic control of the control board.

[0011] Advantageously, the external extinguishing agent supply unit comprises an external extinguishing agent supply line, configured to be filled with an extinguishing agent inside; a solenoid valve, in communication with the external extinguishing agent supply line and comprising a controlled source with a conduit receiving an electrical signal from a control card and transmitting the electrical signal to the controlled source to open or close a valve of the solenoid valve, thus controlling an outlet of the extinguishing agent;and a fixed male connector for conveying extinguishing agent, comprising a male connector base and a movable male connector ring, the connector base and the movable connector ring being arranged in correspondence with the plurality of movable deflectors of an external movable female connector for conveying extinguishing agent from the extension unit so as to be engaged with or disengaged from each other.

[0012] According to one example, the fixed integrated connector unit is engaged with an external mobile connector unit that corresponds exactly to it.The external mobile connector unit comprises an external mobile male connector for an extinguishing agent supply, with a lower base connected to an extinguishing agent line; a first external mobile female connector for the electrical grounding line, with a bottom connected to the electrical grounding line; a second external mobile female connector for the fire detection line, with a bottom connected to the fire detection line; a handle, encircling the connection parts between the external mobile male connector for an extinguishing agent supply and the lines; and a filler element, separating the first external mobile female connector for the electrical grounding line from the second external mobile female connector for the fire detection line.

[0013] According to one example, the external mobile connector unit is engaged with an extension unit to receive in a mobile manner a plurality of conduits, including an electrical grounding conduit, a fire detection conduit, a fire extinguishing agent conduit, an external mobile female connector for a fire extinguishing agent conduit, and a storage tray.

[0014] According to one example, the expansion unit is first connected to a control panel unit and includes an electrical grounding lead connected to a grounding lead via a wiring terminal block; a fire detection lead and an external power supply lead, respectively connected to a wiring terminal block on a control board; and a box panel, including a zonal fire indicator, an audible alarm buzzer, a box panel switch and a manually selected control switch.

[0015] According to one example, the extension unit is also connected to an external extinguishing agent supply unit and includes a fixed male connector for extinguishing agent routing; a solenoid valve having a line from a controlled source, which is connected in parallel to the wiring terminal block on the control panel unit's control board; and an external extinguishing agent supply line.

[0016] According to one example, the external mobile connector unit further includes a protective cover, including a blind cover, configured in the same way as the fixed female connector for a fire extinguishing agent routing; a male connector for the fire detection line; and a terminal device.

[0017] Therefore, at the onset of thermal runaway in the battery compartment located in the vehicle chassis, an initial fire condition can be received and confirmed by the fire detection conduit located in the on-board extinguishing agent channel unit. A fire signal is transmitted to the control board of the control panel unit, activating the solenoid valve and allowing the extinguishing agent stored in the external extinguishing agent supply unit to be released.Thus, the extinguishing agent flows sequentially through the external extinguishing agent supply line, the solenoid valve, the fixed male connector for extinguishing agent delivery, the external mobile female connector for extinguishing agent delivery, the extinguishing agent line, the external mobile male connector for extinguishing agent delivery, the fixed female connector for extinguishing agent delivery, and the onboard extinguishing agent channel. The extinguishing agent then enters an opening in the battery module where the fire initially started. The extinguishing agent is directly sprayed to extinguish the fire and provide thorough preventative cooling within the battery compartment, thereby rapidly shortening the fire suppression time and reducing the amount of extinguishing agent used and the resulting fire damage.

[0018] In order to achieve the aforementioned objective, the present invention further proposes another embodiment, which provides an alternative fire extinguishing device emergency fire suppression system for electric vehicles. This device is identical to the previous one and includes the on-board extinguishing agent channel unit and the fixed integrated connector unit as described in the previous embodiment. This electric vehicle fire suppression system further includes an external mobile connector and water line unit, connected to one end of the fixed integrated connector unit that is not connected to the on-board extinguishing agent channel; and an external fire extinguishing water supply unit, connected to the external mobile connector and water line unit, and configured to distribute fire extinguishing water in the event of a fire in the electric vehicle.

[0019] Advantageously, the external mobile connector and water line unit comprises an external mobile male connector for a mobile water line, including a male connector base and a male connector mobile ring, the male connector base and the male connector mobile ring being arranged in correspondence with the plurality of mobile deflectors of the fixed female connector for conveying extinguishing agent so as to be engaged with or disengaged from each other; a metal wire, connected to the external mobile male connector for the mobile water line at one end, and connected to an earthing installation at the other end; a mobile water line, fitted onto a lower base of the external mobile male connector for the mobile water line at one end, and fitted onto a lower base of an external mobile female connector for the mobile water line at the other end;and the external movable female connector for the movable water line, comprising a lower base fitted onto the other end of the movable water line, and a plurality of movable deflectors arranged in correspondence with a male connector base and a movable male connector ring of a male connector of a distribution valve of the external fire extinguishing water supply unit so as to be engaged with or disengaged from each other.

[0020] Advantageously, the external extinguishing agent supply unit includes a dispensing valve, comprising a male connector, which includes a male connector base and a male connector movable ring, the male connector base and the male connector movable ring being arranged in correspondence with the plurality of movable deflectors of an external movable female connector for the movable water line so as to be engaged with or disengaged from each other; and an external fire extinguishing water source supply line, configured to be filled with fire extinguishing water at all times in order to dispense water for extinguishing a fire if necessary.

[0021] Therefore, when the vehicle is traveling on a road or highway and catches fire, the fire suppression system including the mobile connector unit The external extension unit for mobile pipe installation, control panel unit, and external extinguishing agent supply unit, as described in the first embodiment, may be unavailable. Consequently, a thermal runaway of a single battery module in the battery compartment can rapidly escalate into a fire involving multiple thermal runaway events. Therefore, it is preferable to use an alternative emergency fire suppression system for electric vehicles to extinguish the fire.The procedure is as follows: on the one hand, metal wires are respectively connected to the external mobile male connector for the mobile water line and to the grounded installation in order to eliminate the risk of electric shock to the fire rescue personnel; on the other hand, if the fire extinguishing water source is reliable, the water is discharged by manually opening the distribution valve to extinguish the fire, flowing successively through the external supply line of the extinguishing water source, the distribution valve, the male connector, the external mobile female connector for the mobile water line, the mobile water line, the external mobile water line connector, the fixed female connector for a delivery of extinguishing agent and the on-board extinguishing agent channel.The water then enters an opening formed in the battery module where the fire started, so that the water can directly flood the source of the fire to extinguish it, and provide complete cooling in the battery compartment, thus rapidly reducing the fire extinguishing time, and reducing the amount of fire extinguishing water used and the damage caused by the fire. Brief description of the drawings

[0022] [Fig. 1] is a diagram of a first embodiment according to the present invention.

[0023] [Fig.2A] is a diagram of a fixed integrated connector unit according to the present invention.

[0024] [Fig.2B] is a diagram of the fixed integrated connector unit of [Fig.2A] from another perspective.

[0025] [Fig.3A] is a diagram of an external mobile connector unit according to the first embodiment of the present invention.

[0026] [Fig.3B] is a diagram of the external mobile connector unit of [Fig.3A] from another perspective.

[0027] [Fig.4A] is a diagram of an extension unit, a control panel unit and an external extinguishing agent supply unit according to the first embodiment of the present invention.

[0028] [Fig.4B] is an external diagram of the control panel according to the first embodiment of the present invention.

[0029] [Fig.5A] is a diagram in the case of an expectation of use in connection with a protective cover according to the first embodiment of the present invention.

[0030] [Fig.5B] is a diagram in the case of an expectation of use in disengagement with respect to the protective cover according to the first embodiment of the present invention.

[0031] [Fig.6] is a diagram of a second embodiment of the present invention.

[0032] [Fig.7] is a diagram of an external mobile connector unit and water pipe, as well as an external fire extinguishing water source supply unit according to the second embodiment of the present invention. Detailed description of the invention

[0033] With reference to [Fig. 1], a diagram of a first example of the present invention is provided to illustrate an electric vehicle fire suppression device 100. The electric vehicle fire suppression device 100 comprises an on-board extinguishing agent channel unit 20 and a fixed integrated connector unit 30. The on-board extinguishing agent channel unit 20 includes an on-board extinguishing agent channel 22. The on-board extinguishing agent channel 22 is defined by a stepped channel structure (not shown) formed by spaces between battery modules in a battery compartment and an on-board structure 21 of an electric vehicle (not shown). In other words, the on-board extinguishing agent channel 22 is directly formed from the original configuration of the battery compartment and the on-board structure 21 of the electric vehicle.The on-board extinguishing agent channel 22 extends to a surface of the on-board structure 21 and connects to one end of the fixed integrated connector unit 30. In this example, the other end of the fixed integrated connector unit 30 is sequentially connected to an external mobile connector unit 40, an extension unit 50 for receiving mobile lines, a control panel unit 60 and an external extinguishing agent supply unit 70.

[0034] With reference to both Figures 2A and 2B, diagrams are provided to illustrate the fixed integrated connector unit 30 of the present invention. The fixed integrated connector unit 30 comprises a fixed female connector 31 for a fire extinguishing agent conduit, a first fixed male connector 32 for the electrical grounding conduit, a second fixed male connector 33 for the fire detection conduit, a cavity 37, and a movable door cover 36. The fixed female connector 31 for a fire extinguishing agent conduit is in direct communication with the onboard fire extinguishing agent channel 22. An annular inner wall of the fixed female connector 31 for a fire extinguishing agent conduit further comprises a plurality of movable deflectors 31a for tightening or loosening a corresponding male connector, which will be described in more detail later. One end of the first fixed male connector 32 for the electrical grounding conductor is directly attached to the onboard structure 21. One end of the second fixed male connector 33 for the fire detection conductor is connected to a plurality of onboard fire detection conductors 34, which are fed into the onboard extinguishing agent channel 22. A terminal device 35 is disposed at one tail end of the plurality of onboard fire detection conductors 34. The cavity 37 is disposed between the first fixed male connector 32 and the second fixed male connector 33, such that the two are separated by a hollow space to form a safety distance between them. One side of the movable door cover 36 is fixed to the onboard structure 21 of the electric vehicle.When the fixed integrated connector unit 30 is activated or deactivated, the movable door cover 36 can be opened or closed from the opposite side. In one example, at least one hinge (not shown) is arranged on the fixed side of the movable door cover 36 for attachment to the embedded structure 21.

[0035] With reference to both Figures 3A and 3B, diagrams are provided to illustrate the external mobile connector unit 40 according to the first embodiment of the present invention. The external mobile connector unit 40 comprises an external mobile male connector 41 for a fire extinguishing agent conduit, a first external mobile female connector 42 for the electrical grounding conductor, a second external mobile female connector 43 for the fire detection conduit, a filler element 47, and a handle 48. The external mobile male connector 41 for a fire extinguishing agent conduit is configured to be engaged with or disengaged from the fixed female connector 31 for a fire extinguishing agent conduit. An external annular wall of the external mobile male connector 41 for a fire extinguishing agent conduit comprises a movable male connector ring 41a and a male connector base 41b.When the external movable male connector 41 for an extinguishing agent line is inserted into the fixed female connector 31 for an extinguishing agent line, the plurality of movable deflectors 31a can hook onto the base of the male connector 41b to achieve full engagement. Conversely, when the external movable male connector 41 for an extinguishing agent line is removed from the fixed female connector 31, the movable ring of the male connector 41a can be pushed to force the plurality of movable deflectors 31a to loosen the base of the male connector 41b, thus allowing complete disengagement. The first external movable female connector 42 for the electrical grounding conductor is configured to be disengaged from or engaged with the first fixed male connector 32 for the electrical grounding conductor. The second external movable female connector 43 for the conductor... The fire detection system is configured to be disengaged from or engaged with the second fixed male connector 33 for the fire detection line. The filler element 47 is arranged between the first external movable female connector 42 and the second external movable female connector 43, such that the two connectors are separated by the filler element 47 to form a safety distance between them. The filler element 47 is further configured to be disengaged from or engaged with the cavity 37. The handle 48 includes a fire extinguishing agent line 44 connected to a lower base of the external movable male connector 41, an electrical grounding line 45 connected to the first external movable female connector 42, and a fire detection line 46 connected to the second external movable female connector 43.The handle 48 encloses a connection portion between the external mobile male connector 41 and the extinguishing agent line 44, a connection portion between the first external mobile female connector 42 and the electrical grounding line 45, and a connection portion between the second external mobile female connector 43 and the fire detection line 46. By way of example, the handle 48 can also provide a convenient, quick and simple operational interface for engaging or disengaging the fixed integrated connector unit 30 and the external mobile connector unit 40.

[0036] With reference to [Fig. 4A], a diagram is provided to illustrate the extension unit 50 for receiving extension lines in a mobile manner, the control panel unit 60, and the external extinguishing agent supply unit 70 in the first embodiment of the present invention. The extension unit 50 receives extension lines from the end of the handle 48, including the extinguishing agent line 44, the electrical grounding line 45, and the fire detection line 46. The extension unit 50 further includes a storage tray 51 for receiving the aforementioned extension lines. The external extinguishing agent supply unit 70 includes a solenoid valve 71, an external extinguishing agent supply line 74 connected to one end of the solenoid valve 71, and a fixed male connector 73 for extinguishing agent routing, 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 extinguishing agent line 44, the electrical grounding line 45 and the fire detection line 46: (1) the electrical grounding line 45 is routed through a wiring junction box 62b inside a housing of the control panel unit 60 and electrically connected to a grounding line 63, thus avoiding the risk of electric shock in the electric vehicle fire extinguishing device 100; (2) the fire detection line 46, an external power supply line 64 and a line 75 from a controlled source 72 of the solenoid valve 71. are respectively connected to a control board 61 by a plurality of corresponding wiring terminals 62a, so as to establish an automatic monitoring system; and (3) the extinguishing agent line 44 is connected to a lower base of an external mobile female connector 53 for extinguishing agent delivery, which is pre-installed on the latter. An annular inner wall of the external mobile female connector 53 for extinguishing agent delivery has a plurality of movable deflectors 53a for tightening or loosening the fixed male connector 73 of the external extinguishing agent supply unit 70. When the fixed male connector 73 is inserted into the external mobile female connector 53, the plurality of movable deflectors 53a engage with a male connector base 73b of the fixed male connector 73 to achieve a complete engagement.Conversely, when the fixed male connector 73 is removed from the external movable female connector 53, a movable ring of the male connector 73a on the fixed male connector 73 can be pushed to force the plurality of movable deflectors 53a to loosen the base of the male connector 73b, thus achieving complete disengagement. The wiring terminal block 62a allows the fire detection cable 46, the external power supply cable 64, and the cable 75 to enter the control board 61. The wiring terminal block 62b provides a protection function that allows a sudden abnormal current signal to be instantly discharged to ground via the control board 61.

[0037] Referring to [Fig. 4B], an external diagram of the control panel unit 60, 60a in the first embodiment of the present invention is shown. A single electric vehicle fire suppression device 100 can be automatically monitored by a single control panel unit 60, which is suitable for a single electric vehicle parking space environment. In the case of multiple electric vehicle parking spaces, the control panel unit 60a configured for centralized management and automatic monitoring is more appropriate.Compared to the control panel unit 60, the control panel unit 60a includes an additional main fire indicator 66a, an increased number of zonal fire indicators 66, and additional corresponding wiring terminals and connected conduits according to the number of electric vehicle parking spaces. Except for these differences, both the control panel units 60 and 60a include a housing panel 65 for isolating internal and external contacts, an alarm horn 67, a housing panel switch 68 for opening or closing the housing panel 65, and a manually selectable control switch 69.

[0038] Due to the characteristics of the present invention and the technical means adopted, the desired effect can only be achieved in conjunction with a method of using the present invention. Consequently, more detailed descriptions will be provided below.

[0039] Referring to Figures 5A and 5B, diagrams according to the first example of the present invention are provided, showing the cases where a protective cover is engaged and disengaged during use. When the electric vehicle fire extinguishing device 100 is at rest and the external mobile connector unit 40 is not connected to the corresponding fixed integrated connector unit 30, the external mobile connector unit 40 is positioned as close as possible to the storage tray 51 and is tightly wound.To ensure that the second external mobile female connector 43 for the fire detection conduit can be electrically connected to the second fixed male connector 33 for the fire detection conduit when engaged, the fire detection conduit 46, the second external mobile female connector 43, the second fixed male connector 33, and the onboard fire detection conduit 34 are connected sequentially. Through the terminal device 35, an electronic circuit is formed, and a continuous effective current (fire monitoring current) is maintained, which is transmitted to the control board 61 for automatic monitoring. The external mobile connector unit 40 is protected by a protective cover 401 to address the issue of maintaining equipment reliability in standard parking garage environments.The protective cover 401 operates as follows: the handle 48 is pushed to insert the external movable male connector 41 for extinguishing agent delivery into a blind cover 402 configured in the same way as the fixed female connector. Then, the plurality of movable deflectors 402a hook onto the base of the male connector 41b to secure the connection. Simultaneously, the second external movable female connector 43 for the fire detection line is engaged with a male connector 403 for the fire detection line. A terminal device 404 is disposed at one rear end of the base of the male connector 403 to provide a replacement function for the terminal device 35.

[0040] When the electric vehicle fire suppression system 100 is activated, the external movable male connector 41 for the extinguishing agent supply must be disengaged from the protective cover 401. At this point, the movable ring of the male connector 41a is pushed to force the plurality of movable deflectors 402a of the blind cover 402 to loosen the base of the male connector 41b for disengagement. The handle 48 is pulled to separate the second external movable female connector 43 for the fire detection line from of the 403 male connector for the fire detection line, in order to achieve disengagement.

[0041] On the other hand, after an electric vehicle (not shown) has parked in a parking space and is in a stationary state, the movable door cover 36 can be opened from inside the vehicle body, and the handle 48 can be removed from the storage tray 51 to use the external movable connector unit 40, thus unwinding all the movable conduits of the extension unit 50 and bringing the fixed integrated connector unit 30 closer.One method of operation is as follows: the handle 48 is pushed to engage the first external movable female connector 42 for the electrical grounding conduit and the first fixed male connector 32 for the electrical grounding conduit; the second external movable female connector 43 for the fire detection conduit is then engaged with the second fixed male connector 33 for the fire detection conduit; and the external movable male connector 41 for an extinguishing agent conduit is then inserted into the fixed female connector 31 for an extinguishing agent conduit, and the plurality of movable deflectors 31a are used to hook onto the base of the male connector 41b to ensure engagement.

[0042] When a fire breaks out in the electric vehicle, the on-board fire detection line 34 of the electric vehicle fire suppression system 100 detects combustion products to confirm the occurrence of the fire. Upon detection, the terminal device 35 is bypassed, and the on-board fire detection line 34 is directly connected electrically via the fire detection line 33, the second external movable female connector 43 for the fire detection line, and the fire detection line 46. As a result, the original fire monitoring current is suddenly changed into a fire action current and transmitted to the control board 61.Next, the zonal fire indicator 66 is activated, and the alarm buzzer 67 begins to sound (emitting a warning tone) to alert nearby personnel at the control panel 60 with both visual and audible signals. Personnel can choose to manually operate the manual selection control switch 69 to override the automatic operation of the control panel unit 60, or allow the control panel unit 60 to continue in automatic mode. Once the fire is confirmed after a preset time, the control board 61 transmits an electrical signal to the controlled source 72 via the conduit 75, causing the solenoid valve 71, which is initially in a closed state, to open.The extinguishing agent (for example water) then flows sequentially through the external extinguishing agent supply line 74, the solenoid valve 71, the fixed male connector 73 for extinguishing agent delivery. the external mobile female connector 53 for extinguishing agent routing, the extinguishing agent line 44, the external mobile male connector 41 for extinguishing agent routing, the fixed female connector 31 for extinguishing agent routing, and the on-board extinguishing agent channel 22. Finally, the extinguishing agent reaches an opening in the battery module where the fire initially started, so that the extinguishing agent is directly sprayed to extinguish the fire and perform preventive and complete cooling in the battery compartment, thus rapidly shortening the fire extinguishing time and reducing the amount of extinguishing agent used and the fire-related damage.

[0043] However, if the electric vehicle does not catch fire, the electric vehicle fire suppression system 100 remains in normal monitoring mode. In this state, the fire detection conduit 46, the second external movable female connector 43 for the fire detection conduit, the second fixed male connector 33 for the fire detection conduit, the on-board fire detection conduit 34, and the terminal device 35 form a closed electronic loop. An effective current (fire monitoring current) is continuously maintained and communicated to the control board 61 in order to continuously and automatically monitor any potential fire at an early stage. This system allows for effective fire monitoring and rapid activation of the extinguishing agent, if necessary.When the electric vehicle is about to leave the parking space, the external movable male connector 41 for the fire extinguishing agent line is disengaged from the fixed female connector 31, and the movable ring of the male connector 41a is pushed to force the plurality of movable deflectors 31a to loosen the base of the male connector 41b, thus achieving complete disengagement. Simultaneously, by pulling directly on the handle 48, the first external movable female connector 42 for the electrical grounding line 42 is forced to completely disengage from the first fixed male connector 32, and the second external movable female connector 43 for the fire detection line is forced to completely disengage from the second fixed male connector 33.After confirming that the fixed integrated connector unit 30 is completely disengaged from the external mobile connector unit 40, the movable door cover 36 can be closed and replaced in the vehicle body. The electric vehicle is then free to leave the parking space, and the electric vehicle fire suppression device 100 returns to a resting state illustrated in [Fig. 5A], ready for the next use.

[0044] With reference to [Fig.6], a diagram of a second example of the present invention is shown, which differs from the first embodiment in the following way.

[0045] The external mobile connector unit 40, the extension unit 50, the control panel unit 60, and the external extinguishing agent supply unit 70 of the electric vehicle fire suppression system 100 of the present invention are arranged in a specific location (e.g., a parking space). Therefore, after the electric vehicle leaves the specific location and catches fire on the road, highway, or in other similar scenarios, the fire suppression system, comprising the external mobile connector unit 40, the extension unit 50, the control panel unit 60, and the external extinguishing agent supply unit 70, is no longer available. Consequently, the battery modules inside the battery compartment of the electric vehicle may experience a single thermal runaway event or multiple thermal runaway events.Therefore, the second embodiment of the present invention provides an alternative emergency solution. In this embodiment, an electric vehicle fire suppression device 200 comprises an on-board extinguishing agent channel unit 20, a fixed integrated connector unit 30, an external mobile connector and water line unit 240, and an external fire suppression water supply unit 270 connected to the external mobile connector and water line unit 240. The structures of the on-board extinguishing agent channel unit 20 and the fixed integrated connector unit 30 are the same as those of the first embodiment and will not be repeated here. The external mobile connector and water line unit 240 comprises an external mobile male connector 241 for a mobile water line, a mobile water line 244, and an external mobile female connector 246 for the mobile water line.The external mobile connector and water line unit 240 further includes a metal wire (for example, a steel cable), one end 245a of the metal wire being connected to the external mobile male connector 241, and the other end 245b of the metal wire being connected to a grounded installation. The external extinguishing water supply unit 270 includes an external extinguishing water supply line 274 and a distribution valve 271 connected to the external extinguishing water supply line 274.

[0046] With further reference to Figures 2A, 2B, and 7, Figures 2A and 2B are schematic diagrams of the fixed integrated connector unit of the present invention, and Figure 7 is a schematic diagram of the external mobile connector unit and water line 240 and the external fire-extinguishing water supply unit 270 in the second embodiment of the present invention. When the electric vehicle fire-extinguishing device 200 is on fire and firefighting personnel arrive on scene, a male connector 273 of the dispensing valve 271 must first be inserted into the external mobile female connector 246 for the mobile water line. The plurality of mobile deflectors 246a on the female connector The external mobile connector 246 hooks onto a male connector base 273b of the male connector 273 to ensure full engagement. Next, the external mobile male connector 241 for the mobile water hose, which is connected to one end 245a of the wire, is grasped. The mobile water hose 244 is pulled and extended to the fixed integrated connector unit 30. The other end 245b of the wire is connected to a grounded installation, such as a streetlamp or traffic light pole along the route, thus eliminating the risk of electric shock during firefighting. The mobile water hose 244 provides a safety-discharge distance between the burning electric vehicle and the external firefighting water supply unit 270.Simultaneously, firefighters can use a separate water hose to spray water onto the movable door cover 36 and pry it open with an iron bar. Water should also be continuously sprayed into the onboard extinguishing agent channel 22, as much as possible, to help dissipate heat. Next, the external movable male connector 241 for the movable water hose is inserted into the fixed female connector 31 for extinguishing agent delivery. Multiple movable deflectors 31a are used to hook onto the base of the male connector 241b to ensure engagement.The distribution valve 271 is then manually opened, allowing water to flow sequentially through the external extinguishing water supply line 274, the distribution valve 271, the male connector 273, the external movable female connector 246 for the movable water line, the movable water line 244, the external movable male connector 241 for the movable water line, the fixed female connector 31 for an extinguishing agent supply, and the onboard extinguishing agent channel 22, and finally deep into the battery compartment, where it is directly distributed to flood the source of combustion. This forces the battery compartment to quickly recover from a high-temperature state of thermal runaway. Without this critical factor, combustion can no longer occur.Only a minimal residual fire may remain, which can be extinguished by a secondary water line, thus significantly shortening the fire extinguishing time and reducing the amount of fire extinguishing water and fire-related damage.

[0047] As indicated above, once the fire has been extinguished, the switch on the distribution valve 271 is closed manually. The external movable male connector 241 for the movable water line is then disengaged from the fixed female connector 31 for the delivery of extinguishing agent. This is accomplished by pushing the movable ring of the male connector 241a to force the plurality of movable deflectors 31a to loosen the base of the male connector 241b, thus achieving complete disengagement. Then, the two ends 245a and 245b of the The metal wires are detached. Following this, the male connector 273 of the distribution valve 271 is removed from the external movable female connector 246 for the movable water line. The movable ring of the male connector 273a is pushed so that the plurality of movable deflectors 246a loosen from the base of the male connector 273b, thus achieving complete disengagement. Finally, the movable water line 244, the external movable male connector 241, and the external movable female connector 246 are collectively coiled and compacted, so that the external movable connector and water line unit 240 and the external fire extinguishing water supply unit 270 are restored to their original states and are ready for the next use.

Claims

1. Demands Fire extinguishing device for electric vehicles (100), characterized in that it comprises: an on-board extinguishing agent channel unit (20), comprising an on-board extinguishing agent channel (22) defined by a stepped channel formed at the design stage by spaces between a plurality of battery modules in a battery compartment and by an on-board structure (21) of an electric vehicle; and a fixed integrated connector unit (30), disposed on a surface of a vehicle body structure and connected to the on-board extinguishing agent channel (22), the fixed integrated connector unit (30) comprising a fixed female connector (31) for an extinguishing agent route, a first fixed male connector (32) for an electrical grounding line, a second fixed male connector (33) for a fire detection line, a cavity (37) and a movable door cover (36); the fixed female connector (31) for an extinguishing agent route being directly connected to the on-board extinguishing agent channel (22), and an annular inner wall of the fixed female connector (31) having a plurality of movable deflectors (31a); a base of the first fixed male connector (32) for the electrical grounding line being directly fixed to the on-board structure (21);one end of the second fixed male connector (33) for the fire detection line being connected to a plurality of on-board fire detection lines (34) introduced into the on-board extinguishing agent channel (22), and a first terminal device (35) being disposed at one tail end of the plurality of on-board fire detection lines (34); the cavity (37) being disposed between the first fixed male connector (32) and the second fixed male connector (33) to form a safety distance between them; one side of the movable door cover (36) comprising a hinge fixed to the on-board structure (21) of the electric vehicle, such that, when the fixed integrated connector unit (30) is activated or deactivated, the movable door cover (36) is opened or closed from another side of the movable door cover (36).

2. Electric vehicle fire extinguishing device (100) according to claim 1, characterized in that it further comprises: an external mobile connector unit (40), connected to one end of the fixed integrated connector unit (30) not connected to the on-board extinguishing agent channel (22);an extension unit (50) for receiving in a mobilizable manner a plurality of conduits, connected to one end of the external mobile connector unit (40) not connected to the fixed integrated connector unit (30), the plurality of conduits comprising a first conduit portion configured to depend on an electrical supply for automatic control, to monitor whether fire protection is in automatic or manual mode, to control fire extinguishing and to prevent accidents by electric shock, and a second conduit portion configured to depend on an external supply of an extinguishing agent to distribute the extinguishing agent in the vehicle in order to extinguish the fire in the electric vehicle; a control panel unit (60), configured to receive and house the first conduit portion from the extension unit (50);and an external supply unit for extinguishing agent (70), connected to the second part of the pipe.;

3. Electric vehicle fire extinguishing device (100) according to claim 2, characterized in that the external movable connector unit (40) comprises: an external movable male connector (41) for conveying extinguishing agent, comprising a movable male connector ring (41a) and a male connector base (41b), the movable male connector ring (41a) and the male connector base (41b) being arranged in correspondence with a plurality of movable deflectors (31a) of the fixed female connector (31) for conveying extinguishing agent so as to be engaged with or disengaged from each other; a first external movable female connector (42) for the electrical grounding conductor, arranged in correspondence with the first fixed male connector (32) for the electrical grounding conductor.

4. electrical grounding in order to be engaged with each other or disengaged from each other; a second external movable female connector (43) for the fire detection conduit, arranged opposite the second fixed male connector (33) for the fire detection conduit so that they may be engaged with or disengaged from each other; a filler element (47), arranged between the first external movable female connector (42) for the electrical grounding conduit and the second external movable female connector (43) for the fire detection conduit, to form a safety distance between them, the filler element (47) being arranged opposite the cavity (37) so that they may be engaged with or disengaged from each other; and a handle (48), comprising a fire extinguishing agent conduit (44) connected to a lower base of the external movable male connector (41) for a fire extinguishing agent conduit, an electrical grounding conduit (45) connected to the first external movable female connector (42) for the electrical grounding conduit, and a fire detection conduit (46) connected to the second external movable female connector (43) for the fire detection conduit;the handle (48) enclosing a connecting portion between the external mobile male connector (41) and the extinguishing agent line (44), a connecting portion between the first external mobile female connector (42) and the electrical grounding line (45) and a connecting portion between the second external mobile female connector (43) and the fire detection line (46), and the handle (48) being configured to be operated by a user to engage or disengage the fixed integrated connector unit (30) with or from the external mobile connector unit. A fire extinguishing device for an electric vehicle (100) according to claim 3, characterized in that the external mobile connector unit (40) further comprises a protective cover (401), when the external mobile connector unit (40) is not connected to the fixed integrated connector unit (30), the protective cover (401) being connected to the external mobile connector unit (40) to protect the external mobile connector unit (40), the protective cover (401) comprising a blind cover (402), configured in the same manner as the female connector

5.

6. fixed for conveying extinguishing agent, a male connector (403) for the fire detection line, and a second terminal device (404), the blind cover (402) comprising a plurality of movable deflectors (402a), which are arranged in correspondence with the male connector base (41b) and the movable male connector ring (41a) of the external movable male connector (41) for conveying extinguishing agent, so as to be engaged with or disengaged from each other, the male connector (403) for the fire detection line being arranged in correspondence with the second external movable female connector (43) for the fire detection line so as to be engaged with or disengaged from each other;and the second terminal device (404) being disposed at one tail end of a base of the male connector (403) for the fire detection line. Fire extinguishing device for electric vehicle (100) according to claim 3, characterized in that the extension unit (50) receives the extinguishing agent line (44), the electrical grounding line (45) and the fire detection line (46) from the end of the handle (48); the extension unit (50) comprising a storage tray (51) and an external movable female connector (53) for a extinguishing agent line, and the storage tray (51) receiving the extinguishing agent line (44), the electrical grounding line (45) and the fire detection line (46); a lower base of the external mobile female connector (53) for conveying extinguishing agent being fitted with the extinguishing agent line (44);and the external movable female connector (53) comprising the plurality of movable deflectors (53a), which are arranged in correspondence with the male connector base (73b) and the movable male connector ring (73a) of the fixed male connector (73) for routing extinguishing agent from the external supply unit to the extinguishing agent (70) so as to be engaged with or disengaged from each other. Electric vehicle fire suppression device (100) according to claim 2, characterized in that the control panel unit (60) comprises a housing panel (65); a housing panel switch (68) configured to open or close the housing panel (65); a zonal fire indicator (66) configured to illuminate when the electric vehicle is in; fire; an audible alarm horn (67) configured to emit a warning sound when the electric vehicle is on fire; a control board (61) configured to control fire detection, fire suppression control and manual intervention protection functions and measures, based on a received signal; a wiring terminal block (62a) configured to allow the fire detection line (46), an external power supply line (64) and a line (75) from a controlled source (72) of a solenoid valve (71) to be connected to the control board (61); and a manual selection control switch (69) configured to allow a user to manually interfere with the automatic control of the control board (61).

7. Electric vehicle fire extinguishing device (100) according to claim 2, characterized in that the external extinguishing agent supply unit (70) comprises: an external extinguishing agent supply line (74), configured to be filled with an extinguishing agent inside; a solenoid valve (71), in communication with the external extinguishing agent supply line (74) and comprising a controlled source (72) with a conduit (75) receiving an electrical signal from a control board (61) and transmitting the electrical signal to the controlled source (72) to open or close a valve of the solenoid valve (71), thereby controlling an outlet of the extinguishing agent;and a fixed male connector (73) for conveying extinguishing agent, comprising a male connector base (73b) and a movable male connector ring (73a), the connector base (73b) and the movable connector ring (73a) being arranged in correspondence with the plurality of movable deflectors (53a) of an external movable female connector (53) for conveying extinguishing agent from the extension unit so as to be engaged with or disengaged from each other.

8. Fire extinguishing device for electric vehicles (100) according to claim 1, characterized in that it further comprises an external mobile connector and water conduit unit (240), connected to one end of the fixed integrated connector unit (30) which is not connected to the on-board extinguishing agent channel (22); and a unit external fire extinguishing water source supply (270), connected to the external mobile connector unit and water line (240), and configured to distribute fire extinguishing water in the event of a fire in the electric vehicle.

9. Electric vehicle fire extinguishing device (100) according to claim 8, characterized in that the external mobile connector and water line unit (240) comprises: an external mobile male connector (241) for a mobile water line, comprising a male connector base (241b) and a male connector mobile ring (241a), the male connector base (241b) and the male connector mobile ring (241a) being arranged in correspondence with the plurality of mobile deflectors (31a) of the fixed female connector (31) for conveying extinguishing agent so as to be engaged with or disengaged from each other; a metal wire, connected to the external mobile male connector (241) for the mobile water line at one end (245a), and connected to an earthing installation at the other end (245b);a movable water line (244), fitted onto a lower base of the external movable male connector (241) for the movable water line at one end, and fitted onto a lower base of an external movable female connector for the movable water line at the other end; and the external movable female connector (246) for the movable water line, comprising a lower base fitted onto the other end of the movable water line (244), and a plurality of movable deflectors (246a) arranged in correspondence with a male connector base (273b) and a movable male connector ring (273a) of a male connector (273) of a distribution valve (271) of the external fire extinguishing water supply unit (270) so as to be engaged with or disengaged from each other.

10. Fire extinguishing device for electric vehicles (100) according to claim 8, characterized in that the external extinguishing agent supply unit (270) comprises: a dispensing valve (271), comprising a male connector (273), which includes a male connector base (273b) and a movable male connector ring (273a), the connector base male (273b) and the movable male connector ring (273a) being arranged in correspondence with the plurality of movable deflectors (246a) of an external movable female connector (246) for the movable water conduit so as to be engaged with or disengaged from each other; and an external fire extinguishing water supply line (274), configured to be filled with fire extinguishing water at all times in order to distribute water for extinguishing a fire if required.

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