New energy automobile thermal runaway spontaneous combustion emergency system and method based on Internet of Things perception

Abstract

The invention relates to a new energy automobile thermal runaway spontaneous combustion emergency system and method based on Internet of Things perception, and the system comprises a blocking fireproof device which is disposed at the periphery of a parking space of a new energy automobile, and is configured to generate a blocking fireproof action after being controlled, so as to prevent the fire from spreading after the thermal runaway spontaneous combustion of the new energy automobile; the internet-of-things sensing system is arranged on the periphery of the parking space of the new energy automobile and is configured to monitor the state of the automobile at the parking space of the new energy automobile in real time; the controller is respectively connected with the barrier fireproof device and the internet-of-things sensing system, and is configured to control the barrier fireproof device to generate the barrier fireproof action or not according to the sensing result of the internet-of-things sensing system; and the emergency ejection module is arranged on the periphery of the parking space of the new energy automobile and is configured to generate ejection movement far away from the parking space of the new energy automobile when the control of the barrier fireproof action of the barrier fireproof device by the controller fails, so that personnel can manually start the barrier fireproof action of the barrier fireproof device by using the emergency ejection module.

Description

Technical Field

[0001] The present invention relates to the technical field of fire protection facilities, and in particular to an emergency system and method for thermal runaway spontaneous combustion of new energy vehicles based on Internet of Things perception. Background Art

[0002] With the global transition to new energy and the advancement of the "dual carbon" goals, the market share of new energy vehicles has skyrocketed, thanks to their environmental and energy-saving advantages. However, with the widespread use of new energy vehicles, their safety issues have gradually emerged, especially thermal runaway and spontaneous combustion incidents. New energy vehicle batteries are prone to thermal runaway and spontaneous combustion due to abuse such as overcharging and discharging, overheating, internal and external short circuits, and mechanical triggering. The flame temperature during the spontaneous combustion process can rise to over 300°C or even exceed 1000°C within milliseconds, but the corresponding firefighting methods are still very limited. Especially in large and densely populated parking lots, if the spontaneous combustion of new energy vehicles is not quickly and promptly controlled, it can easily spread to surrounding vehicles, causing more serious damage. Based on this, it is necessary to design a new energy vehicle thermal runaway and spontaneous combustion emergency system and method based on IoT sensing. Summary of the Invention

[0003] The first technical problem to be solved by the present invention is to provide a new energy vehicle thermal runaway spontaneous combustion emergency system based on Internet of Things perception with multiple safeguards in response to the current status of the existing technology.

[0004] The second technical problem to be solved by the present invention is to provide a method for applying to the above-mentioned new energy vehicle thermal runaway spontaneous combustion emergency system based on Internet of Things perception in response to the current status of the existing technology.

[0005] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a new energy vehicle thermal runaway spontaneous combustion emergency system based on Internet of Things perception, including: a blocking fire protection device, which is arranged around the new energy vehicle parking space and is configured to generate a blocking fire protection action after being controlled to prevent the spread of fire after the new energy vehicle thermal runaway spontaneous combustion; an Internet of Things sensing system, which is arranged around the new energy vehicle parking space and is configured to monitor the vehicle status at the new energy vehicle parking space in real time; a controller, which is respectively connected to the blocking fire protection device and the Internet of Things sensing system, and is configured to control whether the blocking fire protection device generates a blocking fire protection action according to the perception results of the Internet of Things sensing system; an emergency ejection module, which is arranged around the new energy vehicle parking space and is configured to generate an ejection movement away from the new energy vehicle parking space when the controller fails to control the blocking fire protection action of the blocking fire protection device, so that personnel can use the emergency ejection module to manually start the blocking fire protection action of the blocking fire protection device.

[0006] Preferably, the fire barrier device includes a storage rack and a fire curtain housed within the rack. The rack is positioned between the tops of two adjacent parking spaces for new energy vehicles. Vertical guide rails are provided at both ends of the rack, and a drive mechanism is provided on the guide rails for driving the fire curtain to deploy downward from the rack along the guide rails. This solution reduces the output power of the drive mechanism by utilizing the weight of the fire curtain through downward deployment.

[0007] Preferably, the fire curtain includes an upper end fixed in the storage rack and a lower end that moves in the same direction as the deployment direction, and the driving mechanism is connected to the lower end of the fire curtain; the driving mechanism includes: a traction motor, the traction motor is arranged on the end of the guide rail close to the storage rack; a fixed pulley, the fixed pulley is arranged on the end of the guide rail away from the storage rack; a traction rope, the traction rope passes around the fixed pulley and the two ends of the traction rope are respectively connected to the output end of the traction motor and the lower end of the fire curtain. With the above solution, when the traction motor is working, it drives the traction rope to retract into the motor, and then the traction rope pulls the fire curtain to deploy outward along the guide rail; in this embodiment, the arrangement of the pulley and the traction rope facilitates the control of the deployment direction and deployment distance of the fire curtain.

[0008] Preferably,

[0009] The emergency ejection module includes: a second fixed pulley, which is arranged near the lower end of the guide rail; a second traction rope, which passes around the second fixed pulley, and the first end of the second traction rope is connected to the lower end of the fire curtain; a temperature-controlled ejection tube, which is arranged near the lower end of the guide rail, the temperature-controlled ejection tube is connected to the second end of the second traction rope, and a second traction rope with a surplus is reserved in the temperature-controlled ejection tube. The temperature-controlled ejection tube is configured so that when the temperature-controlled ejection tube reaches a preset temperature, the temperature-controlled ejection tube generates an ejection motion away from the parking space of the new energy vehicle to drive the second traction rope to move, and then the second traction rope drives the fire curtain to partially unfold downward. With the above solution, in the event of failure of the control system of the controller, the high temperature generated by the thermal runaway spontaneous combustion of the new energy vehicle can drive the temperature-controlled ejection tube to eject outward, so that a person can manually activate the fire blocking device by pulling the temperature-controlled ejection tube and then driving the second traction rope, providing multiple protections for the thermal runaway spontaneous combustion emergency system of the new energy vehicle.

[0010] Preferably, the temperature-controlled ejection tube includes: a fixing part, which is fixedly arranged at a position close to the lower end of the guide rail; an ejection part, which is arranged on the fixing part and away from one end of the guide rail, and the ejection part is connected to the fixing part through a fusible alloy connector, and the ejection part is connected to the second end of the second traction rope; a spring, whose two ends are respectively connected to the fixing part and the ejection part and are in a compressed state; wherein, when the temperature of the fusible alloy connector is higher than the melting point temperature of the fusible alloy connector itself and it is melted, the ejection part is separated from the fixing part, and the ejection part is ejected by the released spring. With the above solution, in the event of control system failure, thermal runaway and spontaneous combustion of the new energy vehicle will cause the temperature of the temperature-controlled ejection tube to rise. When the temperature of the fusible alloy connecting part in the temperature-controlled ejection tube is higher than the melting point of the fusible alloy, the ejection part is separated from the fixing part, and the spring compressed between the ejection part and the fixing part returns to its natural state while ejecting the ejection part several meters away from the fire scene, so that the ejection part can be manually pulled by personnel to deploy the fire curtain.

[0011] Preferably, the fixing member is provided with a first chamber having a first opening; the ejection member is provided with a second chamber having a second opening, the ejection member is movably mounted in the first chamber of the fixing member, the inner wall of the first chamber and the outer wall of the ejection member are connected by the fusible alloy connecting member, and the two ends of the spring respectively abut the bottom wall of the first chamber and the bottom wall of the second chamber.

[0012] Preferably, the IoT sensing system includes: a temperature sensor, which is arranged at the new energy vehicle parking space and is configured to monitor the temperature data of the bottom space area of ​​the car at the new energy vehicle parking space in real time; a smoke and fire detector, which is arranged on the storage rack and is configured to monitor the smoke and fire data at the new energy vehicle parking space; a fire detection camera, which is arranged on the storage rack and detects the car image at the new energy vehicle parking space through the AI ​​algorithm of the smoke and fire picture, and determines whether the car at the new energy vehicle parking space has a new energy vehicle thermal runaway and spontaneous combustion; wherein the temperature sensor, the smoke and fire detector and the fire detection camera are all connected to the controller signal.

[0013] Preferably, the new energy vehicle thermal runaway spontaneous combustion emergency system also includes a remote platform, which is communicatively connected to the Internet of Things sensing system and the barrier fire protection device respectively; wherein the remote platform is configured to: generate remote control instructions to control the barrier fire protection device to perform the barrier fire prevention action; and generate different levels of emergency response actions based on the perception results of the Internet of Things sensing system.

[0014] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: an emergency method for thermal runaway and spontaneous combustion of new energy vehicles based on Internet of Things perception, which is applied to the above-mentioned emergency system for thermal runaway and spontaneous combustion of new energy vehicles, including the following steps: the Internet of Things perception system detects the vehicle status at the new energy vehicle parking space; the controller makes a judgment and processing based on the vehicle status detected by the Internet of Things perception system: when the detected vehicle status reaches the preset control condition, the controller controls the blocking fire protection device to perform a blocking fire protection action to prevent the spread of fire after the thermal runaway and spontaneous combustion of the new energy vehicle; otherwise, the blocking fire protection device is not controlled to perform the blocking fire protection action; when the controller fails to control the blocking fire protection action of the blocking fire protection device, the emergency ejection module generates an ejection movement away from the new energy vehicle parking space so that personnel can use the emergency ejection module to manually start the blocking fire protection action of the blocking fire protection device.

[0015] Preferably, the emergency method for thermal runaway and spontaneous combustion of new energy vehicles also includes: temperature sensors connected to the controller are respectively set at different positions around the parking space of the new energy vehicle; wherein; the Internet of Things sensing system detects the vehicle status at the parking space of the new energy vehicle, including: each temperature sensor detects the temperature data of the bottom space area of ​​the car at the parking space of the new energy vehicle in real time, and sends the detected temperature data to the controller; the fireworks detector monitors the fireworks data at the parking space of the new energy vehicle, and sends the detected fireworks data to the controller; the fire detection camera detects the image of the car at the parking space of the new energy vehicle, and determines whether the car at the parking space of the new energy vehicle has thermal runaway and spontaneous combustion, and sends the judgment result to the controller; the preset control condition is at least one of the first preset condition, the second preset condition and the third preset condition; wherein: the first preset condition is: the temperature data detected by any temperature sensor exceeds the preset temperature threshold or the temperature difference detected by the temperature sensors at different positions exceeds the preset temperature difference; the second preset condition is: the detected fireworks data exceeds the preset fireworks data threshold; the third preset condition is: the presence of a car spontaneous combustion image is detected.

[0016] Compared with the existing technology, the advantages of the present invention are: it uses existing Internet of Things sensing technology to monitor the environmental data around the parking space of new energy vehicles in real time, and introduces an emergency ejection module on the basis of controlling the activation of the barrier fire protection device based on the environmental data. The emergency ejection module allows personnel to remotely activate the barrier fire protection device in the event of a controller control system failure. Compared with the existing automatic control system, the addition of the emergency ejection module further ensures the effectiveness of the barrier fire protection device.

[0017] In addition, Internet of Things sensing technology is used to monitor the environmental data around the parking spaces of new energy vehicles in real time, and multiple intelligent monitoring systems such as temperature sensors, smoke detectors and fire detection cameras are coordinated with each other to avoid false alarms of a single system monitoring, and improve the accuracy and reliability of the intelligent monitoring system's alarm for thermal runaway and spontaneous combustion of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a thermal runaway spontaneous combustion barrier fire prevention device for a new energy vehicle according to an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of a partial structure of a reel and a fire curtain in an embodiment of the present invention;

[0020] Figure 3 for Figure 1 Side view of the thermal runaway spontaneous combustion barrier fire prevention device for new energy vehicles;

[0021] Figure 4 2 is a side view of an emergency ejection module according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0023] Example 1

[0024] like Figures 1 to 4 The figure shows a preferred embodiment of the new energy vehicle thermal runaway spontaneous combustion emergency system of the present invention, which is used to isolate adjacent parking spaces to prevent a new energy vehicle from spontaneously combusting and igniting surrounding vehicles.

[0025] The thermal runaway spontaneous combustion emergency system for new energy vehicles based on Internet of Things perception includes a blocking fire protection device, an Internet of Things perception system, a controller and an emergency ejection module. The controller is respectively connected to the blocking fire protection device and the Internet of Things perception system, and is configured to control whether the blocking fire protection device generates a blocking fire protection action according to the perception results of the Internet of Things perception system; the emergency ejection module is arranged around the parking space of the new energy vehicle, and is configured to generate an ejection movement away from the parking space of the new energy vehicle when the controller fails to control the blocking fire protection action of the blocking fire protection device, so that personnel can use the emergency ejection module to manually start the blocking fire protection action of the blocking fire protection device.

[0026] like Figure 1As shown, the fire-blocking device includes four guide rails 1, three storage racks 2, and three fire-proof chassis 3. Specifically, the four guide rails 1 are vertically arranged at the four corners of the left front, right front, left rear, and right rear of the new energy vehicle parking space, and the three storage racks 2 are respectively arranged at the upper left, upper right, and upper rear of the new energy vehicle parking space, and the two ends of each storage rack 2 are respectively placed on the top of the adjacent guide rails 1; the fire-proof chassis 3 is opposite to the storage racks 2 and is respectively arranged at the lower left, lower right, and lower rear of the new energy vehicle parking space. Among them, a number of spaced connectors 4 are arranged between the two fire-proof chassis 3 located at the lower left and lower right of the new energy vehicle parking space, and a plurality of temperature sensors 41 are arranged on the connectors 4. The temperature sensors 41 are configured to monitor the temperature data of the bottom space area of ​​the vehicle at the new energy vehicle parking space in real time.

[0027] like Figure 2 As shown, a reel 21 and a fire curtain 22 are provided in the storage rack 2. The reel 21 is arranged along the length of the storage rack 2. The upper end 22a and the lower end 22b of the fire curtain 22 are respectively provided with an upper pressure strip 221 and a lower pressure strip 222. The upper pressure strip 221 is fixed to the reel 21 and the fire curtain 22 is wound on the reel 21 with the upper pressure strip 221 as the starting point. The guide rail 1 is provided with a driving mechanism 5 for driving the fire curtain 22 to unfold downward from the storage rack 2 along the guide rail 1. Through the case of thermal runaway of new energy vehicles, it is found that the temperature range of thermal runaway spontaneous combustion of new energy vehicles can reach above 1000°C, and the impact strength of thermal-mechanical coupling is close to 1MPa. Based on the case, the fire curtain 22 in this embodiment has the functions of flame retardancy, fireproofing and heat insulation, can be freely retracted and wound, is resistant to high temperatures above 1000°C, is resistant to impacts above 1MPa, is corrosion-resistant, anti-oxidation, and does not produce toxic gases at high temperatures.

[0028] like Figure 3 As shown, the drive mechanism 5 includes a traction motor 51, a first fixed pulley 52, and a first traction rope 53. The traction motor 51 is arranged at the upper end of the guide rail 1, and the first fixed pulley 52 is arranged at the lower end of the guide rail 1. The first traction rope 53 passes around the first fixed pulley 52, and the two ends of the first traction rope 53 are respectively connected to the output end of the traction motor 51 and the lower pressure strip 222 of the fire curtain 22. With the above solution, in the event of thermal runaway and spontaneous combustion of a new energy vehicle, the fire curtain 22 can be quickly driven vertically downward by the traction motor 51. This downward deployment can reduce the output power of the traction motor 51. At the same time, the arrangement of the first fixed pulley 52 and the first traction rope 53 facilitates control of the deployment direction and deployment distance of the fire curtain 22.

[0029] In addition, opposite side walls of adjacent guide rails 1 are provided with a clearance groove 11 extending along the length direction of the guide rail 1, and the first fixed pulley 52 and the first traction rope 53 are arranged in the clearance groove 11. Among them, the guide rail 1 located on the left rear side of the new energy vehicle parking space has a clearance groove 11 on its right side wall and the front side wall, and two traction motors 51 are arranged on the top of the guide rail 1. The guide rail 1 located on the right rear side of the new energy vehicle parking space has a clearance groove 11 on its left side wall and the front side wall, and two traction motors 51 are arranged on the top of the guide rail 1. In other embodiments, the guide rail 1 located on the left rear side of the new energy vehicle parking space and the guide rail 1 located on the right rear side of the new energy vehicle parking space can also be provided with a traction motor 51. In this way, the one traction motor 51 on the guide rail 1 needs to simultaneously control the traction of the side fire curtain 22 and the rear fire curtain 22. When the traction motor 51 is working, it drives the first traction rope 53 to retract into the motor, and then the first traction rope 53 pulls the fire curtain 22 to move downward along the guide rail 1; in this embodiment, the vertical setting of the give way groove 11 can effectively avoid the problem that the fire curtain 22 cannot slide smoothly due to the blockage of debris in the give way groove 11.

[0030] To enhance the barrier effect, a receiving groove 31 is provided on the fireproof chassis 3. When the fire curtain 22 moves downward from the storage rack 2 along the guide rail 1 to the lowest point, the lower pressure strip 222 of the fire curtain 22 is received in the receiving groove 31. With this solution, the lower pressure strip 222 of the fire curtain 22 is received in the receiving groove 31, forming a sealed protection at the lower end of the fire curtain 22, preventing flames and heat radiation from igniting the tires of surrounding vehicles through the gap at the lower end of the fire curtain 22. In other embodiments, when the fire curtain 22 moves downward to the lowest point, the lower pressure strip 222 is lower than the fireproof chassis 3, which can also form a simple sealed protection.

[0031] The IoT sensing system includes a smoke detector 6, a fire detection camera 7 and the above-mentioned temperature sensor 41; the smoke detector 6 is arranged on the storage rack 2 and is configured to monitor the smoke and fire data at the new energy vehicle parking space; the fire detection camera 7 is arranged on the storage rack 2, and detects the car image at the new energy vehicle parking space through the AI ​​algorithm of the smoke and fire picture, and determines whether the car at the new energy vehicle parking space has a thermal runaway and spontaneous combustion; the output end of the temperature sensor 41, the output end of the smoke detector 6 and the output end of the fire detection camera 7 are all connected to the input end signal of the controller. In the initial state, the fire curtain 22 is stored in the storage rack 2; when the signal detected by the temperature sensor 41 or the smoke detector 6 or the fire detection camera 7 reaches the preset condition, the temperature sensor 41 or the smoke detector 6 or the fire detection camera 7 controls the traction motor 51 through the controller, and the traction motor 51 drives the first traction rope 53 to retract into the motor, and then the first traction rope 53 pulls the fire curtain 22 downward along the guide rail 1 until the lower pressure strip 222 of the fire curtain 22 is located in the accommodating groove 31 of the fireproof base frame 3, so that the fire curtain 22 isolates the adjacent parking spaces.

[0032] The signal monitored by the temperature sensor 41 or the smoke detector 6 or the fire detection camera 7 reaches the preset condition, which means that the ambient temperature detected by a certain point of the temperature sensor 41 reaches the set threshold of 80°C or the temperature sensor 41 detects that the temperature difference between different points reaches the set threshold of 20°C; or the smoke data detected by the smoke detector 6 exceeds the preset smoke data threshold; or the fire detection camera 7 detects the presence of an image of a car spontaneously combusting; when any of the above signals is triggered, the drive mechanism 5 is immediately started to deploy the fire curtain 22.

[0033] When the control path between the Internet of Things sensing system and the barrier fire protection device through the controller fails, the barrier fire protection device cannot be started. The new energy vehicle thermal runaway spontaneous combustion emergency system also includes a remote platform, which is communicated with the Internet of Things sensing system and the barrier fire protection device respectively; wherein the remote platform is configured to generate remote control instructions to control the barrier fire protection device to perform the said barrier fire protection action; at the same time, the remote platform generates different levels of emergency response actions based on the perception results of the Internet of Things sensing system. Different levels of emergency response actions include: when any one of the signals monitored by the temperature sensor 41 or the smoke and fire detector 6 or the fire detection camera 7 meets the preset conditions, immediately start the Level I response and notify the property side through the remote platform; when any two of the signals monitored by the temperature sensor 41 or the smoke and fire detector 6 or the fire detection camera 7 meet the preset conditions, upgrade to Level II response and notify the property side and the vehicle owner side through the remote platform; when all three of the signals monitored by the temperature sensor 41 or the smoke and fire detector 6 or the fire detection camera 7 meet the preset conditions, upgrade to Level III response and notify the property side, the vehicle owner side and the fire department side through the remote platform.

[0034] The above-mentioned new energy vehicle thermal runaway spontaneous combustion emergency system is an automated control system. In order to prevent the above-mentioned automated control system from being unable to start the drive mechanism 5 and unfold the fire curtain 22 when it is out of control, the new energy vehicle thermal runaway spontaneous combustion emergency system of the present invention is also provided with an emergency ejection module 8, which includes a second fixed pulley 82, a second traction rope 81, a fixing member 83, an ejection member 84, a spring 85 and a fusible alloy connector 86; the second fixed pulley 82 is arranged at the lower end of the guide rail 1, the fixing member 83 is fixedly connected to the lower end of the guide rail 1, and a first chamber with a first opening is provided on the fixing member 83; the ejection member 84 is arranged at an end of the fixing member 83 away from the guide rail 1, and a second chamber with a second opening is provided on the ejection member 84, the first chamber of the fixing member 83 is sleeved on the outer wall of the ejection member 84, and the inner side wall of the first chamber and the outer side wall of the ejection member 84 are connected by a fusible alloy connector 86; Figure 4As shown, the first opening of the fixing member 83 faces left, the second opening of the ejection member 84 faces right, and the two ends of the spring 85 are respectively connected to the bottom walls of the first chamber and the second chamber, wherein the spring 85 is in a compressed state; the second traction rope 81 passes over the second fixed pulley 82, the first end of the second traction rope 81 is connected to the lower pressure strip 222 on the fire curtain 22, and the second end of the second traction rope 81 is connected to the ejection member 84. A surplus of the second traction rope 81 is reserved in the second chamber of the ejection member 84. If the new energy vehicle thermally runs away and spontaneously combusts, the burning flames will heat the fixing member 83 and the ejection member 84 until the fusible alloy connector 86 is melted. At this time, the ejection member 84 separates from the fixing member 83, and the compressed spring 85 ejects the ejection member 84 several meters away from the fire scene. Then, personnel can manually pull the fire curtain 22 through the ejection member 84. In this example, the second fixed pulley 82, the second traction rope 81, the fixing part 83, the ejection part 84, the spring 85, etc. are all made of stainless steel. The melting point of stainless steel can reach above 1400°C. The fusible alloy can adopt Bi-Sn-In system alloy. The melting point can be set to about 100°C by adjusting different component ratios. It is more environmentally friendly and responds faster than the early Wood's alloy.

[0035] The present invention also protects a new energy vehicle thermal runaway spontaneous combustion emergency method based on IoT sensing, which is applied to the above-mentioned new energy vehicle thermal runaway spontaneous combustion emergency system. The new energy vehicle thermal runaway spontaneous combustion emergency method includes the following steps:

[0036] The IoT sensing system detects the status of new energy vehicle parking spaces;

[0037] The controller makes a judgment based on the vehicle status detected by the IoT sensing system: when the detected vehicle status reaches the preset control condition, the controller controls the fire-blocking device to perform a fire-blocking action to prevent the spread of fire after the new energy vehicle spontaneously combusts due to thermal runaway; otherwise, the fire-blocking device is not controlled to perform a fire-blocking action.

[0038] When the controller fails to control the blocking fire protection action of the blocking fire protection device, the emergency ejection module generates an ejection movement away from the new energy vehicle parking space so that personnel can use the emergency ejection module to manually start the blocking fire protection action of the blocking fire protection device.

[0039] The IoT sensing system detects the status of the vehicle at the new energy vehicle parking space, including: each temperature sensor 41 detects the temperature data of the bottom space area of ​​the vehicle at the new energy vehicle parking space in real time, and sends the detected temperature data to the controller; the smoke and fire detector 6 monitors the smoke and fire data at the new energy vehicle parking space, and sends the detected smoke and fire data to the controller; the fire detection camera 7 detects the image of the vehicle at the new energy vehicle parking space, and determines whether the vehicle at the new energy vehicle parking space has a new energy vehicle thermal runaway and spontaneous combustion, and sends the determination result to the controller;

[0040] The preset control condition is at least one of the first preset condition, the second preset condition and the third preset condition; wherein: the first preset condition is: the temperature data detected by any temperature sensor 41 exceeds the preset temperature threshold or the temperature difference detected by the temperature sensors at different positions exceeds the preset temperature difference; the second preset condition is: the detected fireworks data exceeds the preset fireworks data threshold; the third preset condition is: the presence of a car spontaneous combustion image is detected.

Claims

1. The thermal runaway spontaneous combustion emergency system for new energy vehicles based on IoT perception is characterized by: include: The fire-blocking device is installed around the parking space for new energy vehicles and is configured to generate a fire-blocking action after being controlled to prevent the spread of fire after the new energy vehicle spontaneously ignites due to thermal runaway; The IoT sensing system is installed around the new energy vehicle parking spaces and is configured to monitor the status of vehicles in the new energy vehicle parking spaces in real time; The controller is connected to the fire blocking device and the IoT sensing system, and is configured to control the fire blocking device to generate a fire blocking action or not according to the sensing result of the IoT sensing system; The emergency ejection module is arranged around the parking space of the new energy vehicle and is configured to generate an ejection movement away from the parking space of the new energy vehicle when the controller fails to control the blocking fire protection action of the blocking fire protection device so that personnel can use the emergency ejection module to manually start the blocking fire protection action of the blocking fire protection device.

2. The new energy vehicle thermal runaway spontaneous combustion emergency system according to claim 1 is characterized in that: The fire-blocking device comprises a storage rack (2) and a fire curtain (22) stored in the storage rack (2); the storage rack (2) is arranged between the tops of two adjacent parking spaces of a new energy vehicle; guide rails (1) are vertically arranged at both ends of the storage rack (2); and a driving mechanism (5) is provided on the guide rails (1) for driving the fire curtain (22) to unfold downward from the storage rack (2) along the guide rails (1).

3. The new energy vehicle thermal runaway spontaneous combustion emergency system according to claim 2, characterized in that: The fire curtain (22) comprises an upper end (22a) fixed in the storage rack (2) and a lower end (22b) moving in the same direction as the unfolding direction, and the driving mechanism (5) is connected to the lower end (22b) of the fire curtain (22).

4. The new energy vehicle thermal runaway spontaneous combustion emergency system according to claim 3 is characterized by: The emergency ejection module includes: A second fixed pulley (82) is arranged near the lower end of the guide rail (1); A second traction rope (81) is passed around a second fixed pulley (82), and a first end of the second traction rope (81) is connected to a lower end (22b) of the fire curtain (22); A temperature-controlled ejection cylinder is arranged near the lower end of the guide rail (1), the temperature-controlled ejection cylinder is connected to the second end of the second traction rope (81), and a surplus of the second traction rope (81) is reserved in the temperature-controlled ejection cylinder. The temperature-controlled ejection cylinder is configured such that when the temperature-controlled ejection cylinder reaches a preset temperature state, the temperature-controlled ejection cylinder generates an ejection motion away from the parking space of the new energy vehicle to drive the second traction rope (81) to move.

5. The new energy vehicle thermal runaway spontaneous combustion emergency system according to claim 4 is characterized in that: The temperature controlled ejection tube comprises: A fixing member (83) is fixedly arranged at a position close to the lower end of the guide rail (1); an ejection member (84) disposed on the fixing member (83) and away from one end of the guide rail (1); the ejection member (84) and the fixing member (83) are connected via a fusible alloy connector (86); and the ejection member (84) is connected to the second end of the second traction rope (81); The spring (85) has two ends connected to the fixing member (83) and the ejection member (84) respectively and is in a compressed state; wherein, when the temperature of the fusible alloy connecting member (86) is higher than the melting point of the fusible alloy connecting member (86) itself and the fusible alloy connecting member (86) is melted, the ejection member (84) is separated from the fixing member (83), and the ejection member (84) is ejected by the released spring (85).

6. The new energy vehicle thermal runaway spontaneous combustion emergency system according to claim 5 is characterized by: The fixing member (83) is provided with a first chamber having a first opening; the ejection member (84) is provided with a second chamber having a second opening, the ejection member (84) is movably mounted in the first chamber of the fixing member (83), the inner side wall of the first chamber and the outer side wall of the ejection member (84) are connected via the fusible alloy connector (86), and the two ends of the spring (85) respectively abut against the bottom wall of the first chamber and the bottom wall of the second chamber.

7. The new energy vehicle thermal runaway spontaneous combustion emergency system according to any one of claims 2 to 6, characterized in that: The IoT sensing system includes: A temperature sensor (41) is provided at a parking space for a new energy vehicle and is configured to monitor temperature data of a space area under the vehicle at the parking space for the new energy vehicle in real time; A smoke and fire detector (6), disposed on the storage rack (2), configured to monitor smoke and fire data at the parking space of the new energy vehicle; A fire detection camera (7) is provided on the storage rack (2) and detects the image of a vehicle at a new energy vehicle parking space through an AI algorithm of fireworks images, and determines whether the vehicle at the new energy vehicle parking space has experienced thermal runaway and spontaneous combustion; The temperature sensor (41), the smoke detector (6) and the fire detection camera (7) are all connected to the controller signal.

8. The new energy vehicle thermal runaway spontaneous combustion emergency system according to claim 7, characterized in that: It also includes a remote platform, which is communicatively connected to the Internet of Things sensing system and the blocking fire prevention device respectively; wherein the remote platform is configured to: generate remote control instructions to control the blocking fire prevention device to perform the blocking fire prevention action; and generate different levels of emergency response actions based on the perception results of the Internet of Things sensing system.

9. The new energy vehicle thermal runaway spontaneous combustion emergency method based on IoT perception is applied to the new energy vehicle thermal runaway spontaneous combustion emergency system according to claim 8, characterized in that: The steps include: The IoT sensing system detects the status of new energy vehicle parking spaces; The controller makes judgments based on the vehicle status detected by the IoT sensing system: When the detected vehicle state reaches the preset control condition, the controller controls the fire-blocking device to perform the fire-blocking action to prevent the fire from spreading after the new energy vehicle spontaneously combusts due to thermal runaway; otherwise, the fire-blocking device is not controlled to perform the fire-blocking action. When the controller fails to control the blocking fire protection action of the blocking fire protection device, the emergency ejection module generates an ejection movement away from the new energy vehicle parking space so that personnel can use the emergency ejection module to manually start the blocking fire protection action of the blocking fire protection device.

10. The emergency method for thermal runaway spontaneous combustion of new energy vehicles based on IoT perception according to claim 9 is characterized in that: Also includes: Temperature sensors connected to controllers are respectively arranged at different locations around the parking space of the new energy vehicle; in; The IoT sensing system detects the vehicle status at the new energy vehicle parking space, including: each temperature sensor (41) detects the temperature data of the bottom space area of ​​the vehicle at the new energy vehicle parking space in real time, and sends the detected temperature data to the controller; the smoke and fire detector (6) monitors the smoke and fire data at the new energy vehicle parking space, and sends the detected smoke and fire data to the controller; the fire detection camera (7) detects the image of the vehicle at the new energy vehicle parking space, and determines whether the vehicle at the new energy vehicle parking space has a new energy vehicle thermal runaway and spontaneous combustion, and sends the determination result to the controller; The preset control condition is at least one of a first preset condition, a second preset condition, and a third preset condition; wherein: The first preset condition is: the temperature data detected by any temperature sensor exceeds a preset temperature threshold or the temperature difference detected by temperature sensors at different locations exceeds a preset temperature difference; The second preset condition is: the detected fireworks data exceeds a preset fireworks data threshold; The third preset condition is: detecting the presence of a car spontaneous combustion image.

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