Fire extinguishing system, fire extinguishing method and vehicle

Abstract

The invention provides a fire extinguishing system, a fire extinguishing method and a vehicle. The fire extinguishing system comprises a storage tank arranged in the vehicle, a fire extinguishing pipeline connected with the storage tank, a control unit, an image acquisition unit and a switch unit, wherein the image acquisition unit and the switch unit are connected with the control unit; the storage tank is used for storing a fire extinguishing agent, and the fire extinguishing pipeline is provided with a jet orifice arranged towards a preset position in the vehicle; the image acquisition unit is used for acquiring an image of a preset position, the switch unit is located on a path where a fire extinguishing agent flows towards the injection orifice, and the control unit can control on-off of the switch unit according to the image acquired by the image acquisition unit. According to the fire extinguishing system, the control unit determines whether a fire occurs at the preset position according to the image acquired by the image acquisition unit, and when the fire occurs at the preset position, the switch unit controls the fire extinguishing agent to flow towards the jet orifice, so that the fire extinguishing agent is sprayed to the preset position where the fire occurs in time to extinguish fire, and the fire extinguishing efficiency is improved; therefore, the safety of passengers and the vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle parts, and in particular to a fire extinguishing system, a fire extinguishing method, and a vehicle provided with the fire extinguishing system. Background Art

[0002] As vehicles are increasingly popularized, people have higher and higher requirements for vehicle safety. When a battery pack on a vehicle catches fire and causes a vehicle fire, it will endanger the safety of the people inside the vehicle and even endanger their lives. In addition, the battery pack has a very large capacity. After a vehicle fire occurs, the battery pack is very likely to explode in a high temperature and high pressure environment. Therefore, it is necessary to extinguish the fire in time when a vehicle fire occurs.

[0003] At present, the way to extinguish a fire in a vehicle is to use a fire extinguisher. The fire extinguisher is small in size and is usually stored in the trunk. When using a fire extinguisher to extinguish a fire, you need to get out of the vehicle and get the fire extinguisher from the trunk before extinguishing the fire at the fire location. This fire extinguishing method cannot extinguish the fire point in time. At the same time, during the fire extinguishing process, the traditional fire extinguisher cannot cover the fire point of the complex structure, which not only has low fire extinguishing efficiency, but also has unsatisfactory fire extinguishing effect. Summary of the invention

[0004] In view of this, the present invention aims to provide a fire extinguishing system to extinguish fire in a timely manner and to improve fire extinguishing efficiency, thereby enhancing the safety of vehicles.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A fire extinguishing system comprises a storage tank arranged in a vehicle, a fire extinguishing pipeline connected to the storage tank, a control unit, and an image acquisition unit and a switch unit connected to the control unit;

[0007] The storage tank is used to store fire extinguishing agent, and the fire extinguishing pipeline is provided with a spray port arranged toward a preset position in the vehicle;

[0008] The image acquisition unit is used to acquire the image of the preset position, the switch unit is located on the path of the fire extinguishing agent flowing to the injection port, and the control unit can control the on and off of the switch unit according to the image acquired by the image acquisition unit.

[0009] Furthermore, the preset position is provided with a smoke detection unit and a temperature detection unit connected to the control unit;

[0010] The control unit can output warning information in the vehicle according to the detections of the smoke detection unit and the temperature detection unit.

[0011] Furthermore, the preset position is at the chassis of the vehicle, and the fire extinguishing pipeline is arranged below the chassis.

[0012] Furthermore, the fire extinguishing pipeline includes main pipes arranged on the left and right sides of the preset position, and connecting pipes connecting the storage tank and the main pipes on each side;

[0013] The injection ports are provided on the main pipes on both sides, the main pipes on each side are connected to the threshold beam on the corresponding side, and the switch unit is provided between the storage tank and the connecting pipe.

[0014] Furthermore, the storage tank is arranged below the rear floor of the vehicle.

[0015] Furthermore, three mounting points are provided on the storage tank, and the connecting lines between the three mounting points are in the form of a triangle. Among the three mounting points, two mounting points are connected to the rear floor longitudinal beams on the left and right sides, and the other mounting point is connected to the rear cross beam of the rear floor.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The fire extinguishing system of the present invention confirms whether a fire occurs at a preset position based on the image collected by the image collection unit by the control unit, and when a fire occurs at the preset position, controls the fire extinguishing agent to flow to the injection port through the switch unit, so that the fire extinguishing agent is promptly sprayed to the preset position where the fire occurs to extinguish the fire, which is beneficial to improving the fire extinguishing efficiency, thereby improving the safety of occupants and vehicles.

[0018] In addition, the control unit detects smoke at the preset position according to the smoke detection unit, and the temperature detection unit detects the temperature at the preset position. The two combinedly confirm whether a fire occurs at the preset position, and issue an alarm message when a fire occurs, which can remind the occupants in the car to extinguish the fire in time, and has a good warning effect. The preset position is at the chassis, and the fire extinguishing pipeline is located under the chassis. When the chassis catches fire, the fire extinguishing agent can be sprayed out in time to extinguish the fire. The structure of the main pipeline and the connecting pipeline is simple, and it is conducive to increasing the coverage area of ​​the fire extinguishing agent. Connecting the main pipeline to the door sill beam has the advantage of easy layout and implementation. The storage tank is located under the rear floor, which is conducive to the installation of the storage tank. The three installation points on the storage tank are triangular. The stability of the triangle can be used to improve the installation strength of the storage tank on the rear floor.

[0019] Another object of the present invention is to provide a fire extinguishing method, the method comprising: collecting image information of a preset position in a vehicle;

[0020] When the collected image information meets a first preset condition, spraying a fire extinguishing agent to the preset position;

[0021] Wherein, the first preset condition includes that there is a flame image in the image information.

[0022] Furthermore, before spraying the fire extinguishing agent to the preset position, smoke information and temperature information of the preset position are detected;

[0023] When the detected smoke information meets a second preset condition, outputting an alarm message in the vehicle;

[0024] When the detected temperature information meets a third preset condition, outputting secondary alarm information and fire extinguishing prompt information in the vehicle, and collecting image information of the preset position;

[0025] The second preset condition includes that the smoke information indicates that there is smoke, and the third preset condition includes that the temperature information is not lower than a preset temperature threshold.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] The fire extinguishing method described in the present invention collects image information of a preset position in a vehicle, and sprays a fire extinguishing agent to the preset position when there is a flame image in the collected image information, which is conducive to timely and efficient fire extinguishing at the preset position of the vehicle, thereby improving the safety of the vehicle.

[0028] In addition, before spraying the fire extinguishing agent, an alarm message is output in the vehicle once when the smoke information at the preset position meets the second preset condition. This can alarm and prompt the occupants in the vehicle to take fire extinguishing measures in time at the early stage of the fire. When the temperature information meets the third preset condition, a secondary alarm message and fire extinguishing prompt message are output in the vehicle, and image information at the preset position is collected. This can further provide fire extinguishing prompts to the occupants in the vehicle. At the same time, when an open flame appears at the preset position, the fire can be automatically extinguished without manual operation, which is beneficial to improving the fire extinguishing effect and thus can reduce the impact of the fire.

[0029] In addition, the present invention also relates to a vehicle, wherein the vehicle is provided with the fire extinguishing system as described above.

[0030] Furthermore, a battery pack is provided under the chassis of the vehicle, the preset position is at the battery pack, and the injection port is arranged toward the battery pack.

[0031] The vehicle described in the present invention, by providing the fire extinguishing system as described above, is conducive to timely extinguishing the fire at the preset location on the vehicle, thereby improving the safety of the vehicle.

[0032] In addition, a battery pack is provided on the chassis, the preset position is at the battery pack, and the injection port is arranged toward the battery pack, so that when a fire occurs in the battery pack, the fire extinguishing agent can be sprayed toward the battery pack in time, thereby reducing the impact of the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 This is a schematic diagram of the structure of the fire extinguishing system according to the first embodiment of the present invention;

[0035] Figure 2 A top view of the fire extinguishing system according to the first embodiment of the present invention;

[0036] Figure 3 It is a front view of the fire extinguishing system according to the first embodiment of the present invention;

[0037] Figure 4 It is a left side view of the fire extinguishing system according to the first embodiment of the present invention;

[0038] Figure 5 for Figure 4 A magnified view of part A in FIG.

[0039] Figure 6 The figure is a schematic diagram of the relationship among the control unit, the switch unit, the temperature detection unit, the image acquisition unit and the smoke detection unit according to the first embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1. Storage tank; 2. Fire extinguishing pipeline; 3. Pressure test gauge; 4. Solenoid valve; 5. Control unit; 6. Image acquisition unit; 7. Smoke detection unit; 8. Temperature detection unit; 9. Switch unit; 10. Vehicle alarm;

[0042] 101, second mounting plate; 102, first mounting plate; 103, material filling port;

[0043] 201, main pipeline; 202, connecting pipeline; 203, middle injection port; 204, rear injection port; 205, front injection port;

[0044] 401, third connector; 402, second connector; 403, first connector. DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0046] In the description of the present invention, it should be noted that the directional words such as "up, down, left, right, front, and back" used in this embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the vehicle. Among them, the up-down direction of the vehicle is also the height direction of the vehicle, the front-back direction of the vehicle is also the length direction of the vehicle, and the left-right direction of the vehicle is also the width direction of the vehicle. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0047] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connected", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0048] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0049] Embodiment 1

[0050] The present embodiment relates to a fire extinguishing system, which is intended to extinguish a fire in a vehicle in a timely manner and has a high fire extinguishing efficiency, thereby improving the safety of the vehicle.

[0051] In terms of overall composition, Figure 1 As shown in the figure, the fire extinguishing system includes a storage tank 1 arranged in a vehicle, a fire extinguishing pipeline 2 connected to the storage tank 1, a control unit 5, and an image acquisition unit 6 and a switch unit 9 connected to the control unit 5. The storage tank 1 is used to store fire extinguishing agent, and the fire extinguishing pipeline 2 is provided with a nozzle arranged toward a preset position in the vehicle. The image acquisition unit 6 is used to obtain an image of the preset position, the switch unit 9 is located on the path of the fire extinguishing agent flowing to the nozzle, and the control unit 5 can control the on and off of the switch unit 9 according to the image acquired by the image acquisition unit 6.

[0052] The fire extinguishing system described in this embodiment confirms whether a fire occurs at a preset position based on the image captured by the image acquisition unit 6 by the control unit 5, and when a fire occurs at the preset position, controls the fire extinguishing agent to flow to the injection port through the switch unit 9, so that the fire extinguishing agent is promptly sprayed to the preset position where the fire occurs to extinguish the fire. Compared with the solution in the prior art that requires going to the trunk to take out the fire extinguisher, the fire extinguishing system is conducive to improving the timeliness and efficiency of fire extinguishing, and can reduce the harm to the occupants in the vehicle and the degree of damage to the vehicle caused by the fire, thereby improving the safety of the occupants and the vehicle.

[0053] Based on the above overall introduction, the structure of the fire extinguishing system in this embodiment is combined in detail. Figures 1 to 3 As a preferred embodiment, the storage tank 1 is disposed under the rear floor of the vehicle. The rear floor has a high load-bearing capacity, which is beneficial to improving the installation stability of the storage tank 1 and the space utilization under the rear floor.

[0054] like Figure 1 As shown in the figure, the storage tank 1 is flat as a whole, and its left and right sides extend outward to the left and right rear floor longitudinal beams respectively, and the middle part of the storage tank 1 is located at the rear cross beam of the rear floor, and extends to the front sides of the front and rear sides respectively. Such a configuration is conducive to reducing the space occupied by the storage tank 1 in the height direction of the whole vehicle, and is conducive to increasing the volume of the storage tank 1, so that more fire extinguishing agent can be stored.

[0055] In specific implementation, the top of the storage tank 1 can be arranged in the shape of the rear floor, and a avoidance structure such as an avoidance groove for avoiding other components on the rear floor is provided on the top of the storage tank 1 to further increase the volume of the storage tank 1. Figure 1 As shown in , the storage tank 1 is stepped along the front-to-back direction of the vehicle, the height of the front part of the storage tank 1 is greater than the height of the rear part of the storage tank, and a concave avoidance structure is provided on the top surface of the front part of the storage tank. In specific implementation, the position and shape of the avoidance structure can be determined according to the use requirements.

[0056] To facilitate the installation of the storage tank 1 on the rear floor, Figure 1 As shown in , three mounting points are provided on the storage tank 1, and the lines between the three mounting points are in the shape of a triangle. Among the three mounting points, two mounting points are connected to the rear floor longitudinal beams on the left and right sides, and the other mounting point is connected to the rear cross beam of the rear floor. In this embodiment, the three mounting points arranged in a triangle are connected to the rear floor longitudinal beam and the rear cross beam of the rear floor, and the high stability of the triangle can be utilized to improve the installation stability of the storage tank 1 on the rear floor.

[0057] For the convenience of distinguishing descriptions, the mounting points connected to the left and right rear floor longitudinal beams are referred to as first mounting points, and the mounting points connected to the rear floor cross beams are referred to as second mounting points. The two first mounting points are set corresponding to the front of the storage tank 1, and the second mounting point is set corresponding to the center of the storage tank 1.

[0058] Combination Figure 1 and Figure 2 As shown in , corresponding to each first mounting point, a first mounting plate 102 is provided on the left and right rear floor longitudinal beams, and a second mounting plate 101 is provided on the rear floor cross beam. The first mounting point is connected to the first mounting plate 102, and the second mounting point is connected to the second mounting plate 101, so that the storage tank 1 is installed under the rear floor.

[0059] As a preferred structural example, the first mounting plate 102 and the second mounting plate 101 in this embodiment can both be in an "Ω" shape, the middle of the first mounting plate 102 is screwed to the first mounting point, and the middle of the second mounting plate 101 is screwed to the second mounting point. Both ends of the first mounting plate 102 are welded to the rear floor longitudinal beam, and both ends of the second mounting plate 101 are welded to the rear floor cross beam.

[0060] Here, the first mounting plate 102 and the second mounting plate 101 have simple structures, are easy to arrange and connect, and have good connection effects. Of course, in specific implementation, the connection structure between the first mounting point and the second mounting point and the rear floor can also be set according to the use requirements, and the shape of the connection structure is not limited to the "Ω"-shaped mounting plate.

[0061] It should be noted that the storage tank 1 in this embodiment adopts Figure 1 In addition to the integrated structure, multiple split storage tanks 1 can also be used. At this time, each storage tank 1 is connected to the fire extinguishing pipeline 2, and a switch unit 9 is provided between each storage tank 1 and the fire extinguishing pipeline 2.

[0062] As a preferred embodiment, the preset position is at the chassis of the vehicle, and the fire extinguishing pipeline 2 is arranged below the chassis. Many components are arranged on the chassis, and the battery pack is also arranged below the chassis, so that the chassis is a position on the vehicle where fire is prone to occur. By setting the preset position at the chassis, the fire can be extinguished in time when a fire occurs in the chassis, thereby reducing the losses caused by the chassis fire.

[0063] Of course, in addition to the chassis, the preset position may also include the front motor, the rear wheels, the interior of the car, etc., which is conducive to expanding the fire extinguishing range to the entire car body. At this time, the fire extinguishing pipeline 2 should be arranged according to the preset position to further increase the fire extinguishing area of ​​the fire extinguishing pipeline 2, thereby improving the fire extinguishing effect of the fire extinguishing system.

[0064] like Figure 1 As shown in the figure, the fire extinguishing pipeline 2 includes main pipelines 201 arranged on the left and right sides of the preset position (i.e., the chassis), and connecting pipelines 202 connecting the storage tank 1 and the main pipelines 201 on each side. Both main pipelines 201 on both sides are provided with injection ports, and each side main pipeline 201 is connected to the door sill beam on the corresponding side, and the switch unit 9 is arranged between the storage tank 1 and the connecting pipeline 202. By providing the connecting pipeline 202, the fire extinguishing agent can be transported to the main pipelines 201 on the left and right sides of the chassis, and when a fire occurs in the chassis, the fire extinguishing agent is sprayed on the chassis through the injection ports on the main pipelines 201 on both sides to extinguish the fire, which is conducive to improving the fire extinguishing efficiency, thereby reducing the impact range of the fire.

[0065] For detailed structure, please refer to Figure 1 and Figure 3As shown in , the main pipeline 201 on both sides has a first part located at the bottom of the door sill beam, a second part located at the bottom of the front end of the rear floor longitudinal beam, and a connecting part connected between the first part and the second part. The connecting pipeline 202 is arranged at the front side of the storage tank 1 and is connected to the storage tank 1. The two ends of the connecting pipeline 202 are specifically connected between the two connecting parts. Because the rear floor longitudinal beam is higher than the door sill beam, the junction between the two is stepped. Here, the main pipeline 201 is arranged in accordance with the rear floor longitudinal beam and the door sill beam, which is convenient for layout and implementation, and can extend the layout length, thereby increasing the fire extinguishing range of the fire extinguishing agent.

[0066] The injection ports in this embodiment include a plurality of middle injection ports 203 disposed on the first part and arranged toward the middle of the chassis. To ensure the arrangement of the plurality of middle injection ports 203, a plurality of "L"-shaped connecting pipes are arranged at equal intervals along the length direction of the vehicle at the bottom of the first part, and the bottom ends of the connecting pipes have middle injection ports 203, which are arranged toward the middle of the chassis. The cooperation of the plurality of middle injection ports 203 facilitates the injection of the fire extinguishing agent at different positions of the chassis, which can increase the coverage of the fire extinguishing agent and thereby improve the fire extinguishing effect on the chassis.

[0067] In addition, a front injection port 205 is provided at the front end of the first part and is disposed toward the front of the vehicle, and a rear injection port 204 is provided at the rear end of the second part and is disposed toward the rear of the vehicle. Such an arrangement can spray the fire extinguishing agent forward and backward respectively, which is conducive to further increasing the fire extinguishing range of the fire extinguishing agent, almost covering the easily ignited parts of the chassis, so as to achieve fire extinguishing without dead angles.

[0068] To further improve the fire extinguishing effect, a fire sprinkler can be provided on each spray port to increase the coverage area of ​​the fire extinguishing agent sprayed out, and to reduce the consumption of the fire extinguishing agent, thereby reducing the production cost. The fire sprinkler here can adopt the product in the prior art, and its structure will not be described in detail here.

[0069] like Figure 6 As shown in the figure, the control unit 5 in this embodiment is specifically an ECU on the vehicle, and the switch unit 9 includes a solenoid valve 4 provided on the connecting pipeline 202. The control unit 5 is electrically connected to the solenoid valve 4 and can control the opening and closing of the solenoid valve 4. When the fire extinguishing agent is needed, the control unit 5 sends an opening instruction to the solenoid valve 4, so that the solenoid valve 4 is opened. At this time, the fire extinguishing agent in the storage tank 1 is transported to the main pipeline 201 through the connecting pipeline 202, so that the fire extinguishing agent can be sprayed out at the injection port to extinguish the fire.

[0070] When the fire extinguishing agent needs to be turned off, the control unit 5 sends a closing instruction to the solenoid valve 4. At this time, the fire extinguishing agent in the storage tank 1 cannot be transported to the main pipeline 201 through the connecting pipeline 202. The solenoid valve 4 in this embodiment has the advantages of simple structure, easy layout, and good use effect. In addition, in order to prevent the solenoid valve 4 from being damaged and affecting the use effect, a mechanical valve can be installed near the solenoid valve 4.

[0071] The image acquisition unit 6 in this embodiment includes a camera, such as Figure 1 and Figure 5 As shown in , the camera is specifically arranged on the side of the electromagnetic valve 4 facing the front of the vehicle. Such an arrangement is conducive to the camera obtaining an image at the chassis. When there is a flame in the image, it means that the fire is large and needs to be extinguished in time, thereby improving the accuracy of fire recognition.

[0072] In addition, if Figure 4 and Figure 5 As shown in FIG, the solenoid valve 4 is provided with a first connector 403 connected to a power source, a second connector 402 connected to a control unit 5, and a third connector 401 connected to a vehicle alarm 10. When the solenoid valve 4 is opened, the vehicle alarm 10 can be triggered to sound an alarm, thereby alerting nearby vehicles.

[0073] In addition, as a preferred embodiment, a smoke detection unit 7 and a temperature detection unit 8 connected to the control unit 5 are provided at the preset position. The control unit 5 can output alarm information in the vehicle according to the detection of the smoke detection unit 7 and the temperature detection unit 8. When a fire occurs at the preset position, the smoke is detected by the smoke detection unit 7, and the temperature of the preset position is detected by the temperature detection unit 8, which can be used as a basis for judging that the preset position is on fire, which is conducive to identifying the fire in the early stage, and alerting the occupants in the vehicle by means of an alarm, which is conducive to taking fire extinguishing measures in time, thereby reducing the impact caused by the fire.

[0074] In specific implementation, the smoke detection unit 7 in this embodiment includes a smoke alarm, and the temperature detection unit 8 includes a temperature sensor, both of which are electrically connected to the control unit 5. The products of the smoke alarm and temperature sensor here are mature, with high detection accuracy for smoke and temperature, and the smoke alarm can alarm when smoke is detected. Through the comprehensive consideration of smoke, temperature and images, it is beneficial to improve the accuracy of fire recognition, thereby facilitating timely fire extinguishing. As a preferred embodiment, the smoke alarm and temperature sensor are both arranged in multiple intervals, and the cooperation of multiple smoke alarms and multiple temperature sensors is beneficial to further improve the detection accuracy of the early stage of fire.

[0075] Among them, when the temperature is not lower than the preset temperature threshold, the control unit 5 determines that the temperature increase is caused by fire based on parameters such as vehicle speed, driving conditions and environment. At this time, it can be determined that a fire has occurred in the vehicle, and then the solenoid valve 4 is opened to extinguish the fire.

[0076] Considering the development process of the fire, in this embodiment, when the smoke detection unit 7 detects smoke at a preset position, an alarm can be sounded through a smoke alarm. At this time, the fire is in the early stage, and the alarm sound of the smoke alarm can remind the owner to perform fire extinguishing operations. When the owner does not take fire extinguishing measures, as the fire spreads, when the temperature detection unit 8 detects that the temperature at the preset position is not lower than the preset temperature threshold, the control unit 5, after excluding other factors and determining that the temperature rise is caused by the fire, can further remind the owner to start the fire extinguishing system by issuing a second alarm, and manually start the control unit 5 to control the solenoid valve 4 to open, so that the fire extinguishing agent is sprayed at the preset position to extinguish the fire. The second alarm here includes the alarm sound emitted by the smoke alarm, and can also include the alarm sound emitted by the vehicle alarm 10. At this time, the control unit 5 controls the vehicle alarm 10 to emit an alarm sound.

[0077] When the image acquisition unit detects flames in the image, the control unit 5 can automatically control the electromagnetic valve 4 to open to extinguish the fire, and at the same time, the vehicle alarm 10 starts to sound an alarm, thereby realizing automatic fire extinguishing without manual operation. The alarm sound emitted by the vehicle alarm 10 can remind nearby vehicles to stay away from the fire vehicle, thereby further reducing the losses caused by the vehicle fire.

[0078] In addition, the fire extinguishing agent in this embodiment can adopt the fire extinguishing medium in the prior art, for example, the fire extinguishing agent is a dry powder fire extinguishing agent. In order to improve the use effect of the fire extinguishing system, a feeding port 103, a plugging cover for sealing the feeding port 103, and a pressure detection gauge 3 for detecting the pressure in the storage tank 1 can also be set on the storage tank 1. When the pressure detection gauge 3 detects that the pressure in the storage tank 1 is less than the preset pressure value, it means that the fire extinguishing agent in the storage tank 1 is insufficient. At this time, the plugging cover can be removed and the fire extinguishing agent can be supplemented through the feeding port 103, so as to ensure that the fire extinguishing system has sufficient fire extinguishing agent to meet the fire extinguishing needs when extinguishing a fire.

[0079] In specific arrangement, the pressure detection gauge 3 can be arranged at Figure 1 The pressure detection gauge 3 can be arranged at other positions of the storage tank 1 according to the layout requirements. Of course, in addition to the pressure detection gauge 3, other structures such as pressure sensors can also be used as long as the pressure in the storage tank 1 can be detected.

[0080] The fire extinguishing system described in this embodiment can timely identify and take measures when a fire occurs at a preset position on the vehicle through the storage tank 1 storing the fire extinguishing agent and the fire extinguishing pipeline 2, the switch unit 9, the image acquisition unit 6 collecting images, the smoke detection unit 7 collecting smoke, and the temperature detection unit 8 collecting temperature, thereby reducing the impact of the fire. The fire extinguishing system can also realize automatic fire extinguishing, with high timeliness and automation. The fire extinguishing system can also perform adaptive structural deformation according to the use requirements of different moldings to meet the use requirements of different models.

[0081] Embodiment 2

[0082] This embodiment relates to a fire extinguishing method, which includes collecting image information of a preset position in a vehicle, and spraying a fire extinguishing agent to the preset position when the collected image information meets a first preset condition, wherein the first preset condition includes the presence of a flame image in the image information.

[0083] When there is a flame image in the collected image information, it means that there is an open fire at the preset position. If the fire is not extinguished in time, the scope of the fire will become larger and larger, thereby affecting the safety of people and vehicles. The fire extinguishing method in this embodiment takes the presence of a flame image in the collected image information as the first preset condition, and sprays the fire extinguishing agent to the preset position when the first preset condition is met, so that the fire can be extinguished in a timely and efficient manner at the fire position, thereby minimizing the impact of the fire.

[0084] As a preferred implementation, in the fire extinguishing method of this embodiment, before spraying the fire extinguishing agent at the preset position, the smoke information and temperature information of the preset position are detected. When the detected smoke information meets the second preset condition, a primary alarm message is output in the vehicle. When the detected temperature information meets the third preset condition, a secondary alarm message and a fire extinguishing prompt message are output in the vehicle, and image information of the preset position is collected. Among them, the second preset condition includes that the smoke information is smoke, and the third preset condition includes that the temperature information is not lower than the preset temperature threshold.

[0085] Specifically, when smoke is detected at the preset position, it indicates that the fire is in its early stages. In this embodiment, smoke is detected at the preset position as the second preset condition, and an alarm message is output once when the second preset condition is met, which can remind the owner to take timely measures to extinguish the fire at the early stage of the fire. The preset temperature threshold means that when the detected temperature is greater than or equal to the preset temperature threshold, it indicates that the fire has a tendency to grow larger, and if it is not handled in time, the fire will continue to spread. The specific value of the preset temperature threshold can be determined according to the use requirements.

[0086] In this embodiment, detecting that the temperature information at the preset position is not lower than the preset temperature threshold is used as the third preset condition, and when the third preset condition is met, secondary alarm information and fire extinguishing prompt information are output, and image information of the preset position is collected. When the fire is not effectively controlled in the early stage, the three parameters of smoke, image and temperature can be combined to comprehensively judge the degree of fire hazard, and remind the car owner to take targeted and timely fire extinguishing measures.

[0087] In specific implementation, the controller on the vehicle should also analyze comprehensive factors such as the vehicle's driving speed, ambient temperature, and road environment. Only after determining that the temperature rise is caused by a fire, will it output a secondary alarm and fire extinguishing prompt information. This setting is conducive to improving the accuracy and effect of fire extinguishing and has a high fault tolerance.

[0088] The fire extinguishing method in this embodiment can be used to extinguish the fire in stages according to the degree of fire at the preset location. In detail, at the beginning of the fire, when smoke is detected at the preset location, the first alarm (smoke alarm) is issued to remind the owner that there is a risk of fire in the car. When the owner does not take fire extinguishing measures, as the fire spreads, when the temperature is detected to be not lower than the preset temperature threshold, a secondary alarm can be triggered to enter an emergency state. At this time, the central control panel displays a prompt message (text or voice information with a prompt effect) to prompt the driver to extinguish the fire, accompanied by an alarm sound. At the same time, a virtual button for starting fire extinguishing can also be displayed on the central control panel, prompting the driver to achieve one-key fire extinguishing by pressing the virtual button.

[0089] If the owner does not perform the one-key fire extinguishing operation, at this time, combined with whether there is a flame in the image, if a flame is detected in the image, no manual operation is required, and the fire extinguishing agent is directly controlled to spray to the preset position to extinguish the fire, thereby ensuring automatic fire extinguishing when the fire reaches a dangerous level. When there is no flame in the image of the detected preset position, the smoke disappears, and the temperature is lower than the preset temperature threshold, the fire extinguishing can be stopped automatically or manually. In specific implementation, the fire extinguishing method in this embodiment can be executed by the fire extinguishing system in Example 1.

[0090] The fire extinguishing method in this embodiment, by setting the first preset condition, the second preset condition and the third preset condition, can perform fire extinguishing operations in stages according to the severity of the fire, thereby facilitating timely control of the fire, reducing the impact of the fire on the safety of the occupants and the vehicle, and improving the safety of the vehicle.

[0091] Embodiment 3

[0092] This embodiment relates to a vehicle, which is provided with the fire extinguishing system in the first embodiment. Preferably, a battery pack is provided under the chassis of the vehicle, the preset position is at the battery pack, and the injection port is arranged toward the battery pack. By setting the battery pack, which is prone to fire, as the preset position, fire extinguishing measures can be taken in time when a fire occurs in the battery pack, which is conducive to reducing the losses caused by the battery pack fire.

[0093] The vehicle of this embodiment is provided with a fire extinguishing system, so that when a fire occurs at a preset position of the vehicle, the fire can be extinguished in time, thereby improving the safety of the passengers and the vehicle.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire extinguishing system, characterized in that: It comprises a storage tank (1) arranged in a vehicle, a fire extinguishing pipeline (2) connected to the storage tank (1), a control unit (5), and an image acquisition unit (6) and a switch unit (9) connected to the control unit (5); The storage tank (1) is used to store fire extinguishing agent, and the fire extinguishing pipeline (2) is provided with a spray port arranged toward a preset position in the vehicle; The image acquisition unit (6) is used to acquire an image of the preset position, the switch unit (9) is located on the path of the fire extinguishing agent flowing toward the injection port, and the control unit (5) can control the on and off of the switch unit (9) according to the image acquired by the image acquisition unit (6).

2. The fire extinguishing system according to claim 1, characterized in that: The preset position is provided with a smoke detection unit (7) and a temperature detection unit (8) connected to the control unit (5); The control unit (5) is capable of outputting warning information in the vehicle based on the detections of the smoke detection unit (7) and the temperature detection unit (8).

3. The fire extinguishing system according to claim 1, characterized in that: The preset position is at the chassis of the vehicle, and the fire extinguishing pipeline (2) is arranged below the chassis.

4. The fire extinguishing system according to claim 3, characterized in that: The fire extinguishing pipeline (2) comprises a main pipeline (201) arranged on the left and right sides of the preset position, and a connecting pipeline (202) connecting the storage tank (1) and the main pipeline (201) on each side; The injection ports are provided on the main pipes (201) on both sides, the main pipes (201) on each side are connected to the threshold beam on the corresponding side, and the switch unit (9) is provided between the storage tank (1) and the connecting pipe (202).

5. The fire extinguishing system according to any one of claims 1 to 4, characterized in that: The storage tank (1) is arranged below the rear floor of the vehicle.

6. The fire extinguishing system according to claim 5, characterized in that: The storage tank (1) is provided with three mounting points, the connecting lines between the three mounting points are in the form of a triangle, and of the three mounting points, two mounting points are connected to the rear floor longitudinal beams on the left and right sides, and the other mounting point is connected to the rear cross beam of the rear floor.

7. A fire extinguishing method, characterized in that: The method includes: Collecting image information of a preset position in the vehicle; When the collected image information meets a first preset condition, spraying a fire extinguishing agent to the preset position; Wherein, the first preset condition includes that there is a flame image in the image information.

8. The fire extinguishing method according to claim 7, characterized in that: The method further includes: Before spraying the fire extinguishing agent to the preset position, detecting smoke information and temperature information of the preset position; When the detected smoke information meets a second preset condition, outputting an alarm message in the vehicle; When the detected temperature information meets a third preset condition, outputting secondary alarm information and fire extinguishing prompt information in the vehicle, and collecting image information of the preset position; The second preset condition includes that the smoke information indicates that there is smoke, and the third preset condition includes that the temperature information is not lower than a preset temperature threshold.

9. A vehicle, characterized in that: The vehicle is provided with the fire extinguishing system according to any one of claims 1 to 6.

10. The vehicle according to claim 9, characterized in that: A battery pack is provided under the chassis of the vehicle, the preset position is at the battery pack, and the injection port is arranged toward the battery pack.

Images