Intelligent lithium battery thermal runaway automatic early warning and fire extinguishing suppression system

Abstract

The invention provides an intelligent lithium battery thermal runaway automatic early warning and fire extinguishing suppression system. The intelligent lithium battery thermal runaway automatic early warning and fire extinguishing suppression system comprises a lower side protection shell, the upper surface of the lower side protection shell is fixedly connected with a tank body, the front surface of the tank body is provided with a nozzle, the inner surface of the lower side protection shell is fixedly connected with a fixing block, the output end of the fixing block is fixedly connected with a lifting block, and the output end of the lifting block is fixedly connected with a power source. A plastic clamping piece is arranged in the lifting block, a spring is fixedly connected to the upper surface of the lifting block, and an upper side protection shell is arranged on the upper surface of the lower side protection shell. According to the intelligent lithium battery thermal runaway automatic early warning and fire extinguishing suppression system, by integrating the temperature sensor and the nozzle, the temperature of the battery can be monitored in real time, a fire extinguishing program can be quickly started and a perfluorohexanone inhibitor can be sprayed when abnormality is detected, and fire disasters or explosion accidents can be effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic early warning and fire extinguishing of lithium battery thermal runaway, and in particular to an intelligent automatic early warning and fire extinguishing suppression system for lithium battery thermal runaway. Background Art

[0002] An intelligent lithium battery thermal runaway automatic warning and fire suppression system is designed to improve the safety of lithium battery use. The system integrates temperature sensors, smoke detectors and chemical fire extinguishing agent release devices. When the battery experiences thermal runaway during charging or discharging, the system can monitor abnormal temperature rise or smoke generation in real time. Through intelligent analysis, the system determines whether the battery has entered a dangerous state. Once confirmed, the fire extinguishing agent release is immediately initiated to effectively prevent battery explosion or fire spread. In addition, the system can also send warning information to the user's mobile phone or central control room through the wireless communication module to ensure timely manual intervention and emergency treatment.

[0003] Although the system has significant advantages in improving safety, it also has some potential drawbacks. First, the system is highly dependent on the accuracy and response speed of the sensor. If the sensor fails or responds late, thermal runaway may not be detected in time, resulting in delayed implementation of fire-fighting measures. Secondly, although chemical fire extinguishing agents can quickly suppress the fire, they may cause damage to battery components after use, affecting the performance and life of the battery. In addition, the complexity of the system itself and the maintenance cost may also become obstacles to its promotion and application. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an intelligent lithium battery thermal runaway automatic warning and fire extinguishing suppression system, which solves the problem that due to sensor failure or response delay, the thermal runaway phenomenon may not be detected in time, causing damage to the battery components and affecting the performance and life of the battery.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent lithium battery thermal runaway automatic warning and fire extinguishing suppression system, comprising:

[0008] A lower protective shell, the upper surface of which is fixedly connected to a tank body, a nozzle is provided on the front surface of the tank body, a fixed block is fixedly connected to the inner surface of the lower protective shell, a lifting block is fixedly connected to the output end of the fixed block, a plastic card is provided inside the lifting block, a spring is fixedly connected to the upper surface of the lifting block, an upper protective shell is provided on the upper surface of the lower protective shell, an indicator light is fixedly connected to the upper surface of the upper protective shell, and a connecting rope is fixedly connected to the lower surface of the lifting block;

[0009] The inner surface of the lower protective shell is fixedly connected with a middle partition plate, the side surface of the middle partition plate is provided with a fixing rod groove, the upper surface of the middle partition plate is provided with air holes, the upper surface of the middle partition plate and between the air holes is fixedly connected with a temperature sensor, and the side surface of the lower protective shell is provided with a lateral safety plate.

[0010] Preferably: a pull switch is provided on the rear surface of the tank body, the interior of the tank body is filled with perfluorohexanone, and the lower end of the connecting rope is fixedly connected to the pull switch.

[0011] Preferably: the upper surface of the plastic card contacts the lower surface of the fixing block, a cavity is provided inside the fixing block, the upper end of the spring is fixedly connected to the top inner wall of the cavity, and the fixing blocks are multiple and distributed left and right.

[0012] Preferably: a fixing plate is fixedly connected to the inner surface of the lower protective shell, a third threaded mounting hole is arranged on the upper surface of the fixing plate, and a second threaded mounting hole is arranged on the upper surface of the upper protective shell, and the position of the second threaded mounting hole corresponds to that of the third threaded mounting hole.

[0013] Preferably: the temperature sensor is electrically connected to the nozzle, the air-permeable through holes are distributed in a rectangular array, and a first threaded mounting hole is provided on the upper surface of the middle partition plate.

[0014] Preferably: a longitudinal mounting rod is fixedly connected to the upper surface of the lower protection shell, and the lateral safety plate is elastic.

[0015] Preferably, a boss is provided on the rear surface of the lateral safety plate, and an arc-shaped groove is provided on the upper surface of the lateral safety plate.

[0016] Preferably: a switch is provided on the lower surface of the indicator light, the switch is electrically connected to the temperature sensor, and a through hole is provided on the upper surface of the middle partition plate.

[0017] (III) Beneficial effects

[0018] The present invention provides an intelligent lithium battery thermal runaway automatic warning and fire suppression system. It has the following beneficial effects:

[0019] The intelligent lithium battery thermal runaway automatic warning and fire suppression system, by integrating temperature sensors and nozzles, can monitor the temperature of the battery in real time and quickly start the fire extinguishing procedure when an abnormality is detected, spraying perfluorohexanone inhibitor to effectively prevent the occurrence of fire or explosion accidents. The design of the lower protective shell and the upper protective shell not only increases the mechanical strength of the entire system, but also ensures internal ventilation through the air-permeable holes to prevent additional safety hazards caused by the closed environment. The indicator light in the system is electrically connected to the temperature sensor to provide real-time system status indication. Once the system is started or fails, the user can get feedback in the first time through the change of the indicator light. The system design includes multiple fixed blocks and springs. These configurations not only ensure the stability of the internal components, but also allow a certain degree of flexible adjustment to adapt to batteries of different models and sizes, enhancing the applicability and adjustability of the system. The design of the lateral safety plate not only protects the equipment from external impact, but also increases the overall protection and impact resistance through its elasticity and the structural design of the boss and arc groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0021] Figure 2 An exploded view of the present invention;

[0022] Figure 3 It is a partial structural schematic diagram of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 5 for Figure 1 A schematic diagram of the enlarged structure in the middle.

[0025] Among them, 1. lower side protective shell; 2. tank body; 3. nozzle; 4. connecting rope; 5. through hole; 6. lifting block; 7. plastic clip; 8. fixing block; 9. cavity; 10. spring; 11. middle partition plate; 12. fixing rod groove; 13. ventilation through hole; 14. temperature sensor; 15. first threaded mounting hole; 16. indicator light; 17. upper side protective shell; 18. lateral safety plate; 19. arc groove; 20. longitudinal mounting rod; 21. boss; 22. second threaded mounting hole; 23. fixing plate; 24. third threaded mounting hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-5 As shown, an embodiment of the present invention provides an intelligent lithium battery thermal runaway automatic warning and fire extinguishing suppression system, including a lower protective shell 1, a fixing plate 23 is fixedly connected to the inner surface of the lower protective shell 1, a third threaded mounting hole 24 is arranged on the upper surface of the fixing plate 23, a second threaded mounting hole 22 is arranged on the upper surface of the upper protective shell 17, and the position of the second threaded mounting hole 22 corresponds to the position of the third threaded mounting hole 24, a tank body 2 is fixedly connected to the upper surface of the lower protective shell 1, a pull switch is arranged on the rear surface of the tank body 2, the interior of the tank body 2 is filled with perfluorohexanone, the lower end of the connecting rope 4 is fixedly connected to the pull switch, the front surface of the tank body 2 is provided with a nozzle 3, the inner surface of the lower protective shell 1 is fixedly connected to a fixing block 8, and the output end of the fixing block 8 is fixedly connected to a lifting device. The lowering block 6 has a plastic card 7 disposed inside the lifting block 6, the upper surface of the plastic card 7 contacts the lower surface of the fixed block 8, a cavity 9 is disposed inside the fixed block 8, the upper end of the spring 10 is fixedly connected to the top inner wall of the cavity 9, the number of the fixed blocks 8 is multiple and they are distributed on the left and right, the upper surface of the lifting block 6 is fixedly connected to the spring 10, the upper surface of the lower protective shell 1 is provided with an upper protective shell 17, the upper surface of the lower protective shell 1 is fixedly connected to the longitudinal mounting rod 20, the lateral safety plate 18 is elastic, the upper surface of the upper protective shell 17 is fixedly connected to the indicator light 16, the lower surface of the indicator light 16 is provided with a switch, the switch is electrically connected to the temperature sensor 14, the upper surface of the middle partition plate 11 is provided with a through hole 5, and the lower surface of the lifting block 6 is fixedly connected to the connecting rope 4.

[0028] An intermediate partition plate 11 is fixedly connected to the inner surface of the lower protective shell 1, a fixing rod groove 12 is provided on the side surface of the intermediate partition plate 11, an air-permeable through hole 13 is provided on the upper surface of the intermediate partition plate 11, a temperature sensor 14 is fixedly connected to the upper surface of the intermediate partition plate 11 and located between the air-permeable through holes 13, the temperature sensor 14 is electrically connected to the nozzle 3, the air-permeable through holes 13 are distributed in a rectangular array, a first threaded mounting hole 15 is provided on the upper surface of the intermediate partition plate 11, a lateral safety plate 18 is provided on the side surface of the lower protective shell 1, a boss 21 is provided on the rear surface of the lateral safety plate 18, and an arc groove 19 is provided on the upper surface of the lateral safety plate 18.

[0029] Working principle: The temperature sensor 14 continuously monitors the temperature of the lithium battery. These sensors are located on the upper surface of the middle partition 11 and are connected to the battery gap through the ventilation holes 13 to ensure that the temperature changes of the battery pack can be accurately captured. Once the temperature sensor 14 detects that the battery temperature exceeds the preset safety threshold, the system will automatically trigger an alarm, the indicator light 16 will light up and send an alarm signal through the connected switch. At the same time, the system can send an early warning message to the user through the wireless module to prompt the user to deal with it in time. The over-temperature signal will trigger the pull switch in the tank body 2. The tank body 2 will be activated by the traction of the connecting rope 4. The perfluorohexanone filled in the tank body 2 will be forced to be sprayed out through the nozzle 3. Perfluorohexanone, as an efficient fire extinguishing chemical, can quickly reduce the surrounding temperature and suppress the fire. When the system is activated, the lifting block 6 will be displaced under the action of the spring 10. This displacement can further ensure the pulling effect of the connecting rope 4 and enhance the mechanical reliability of the system. The plastic card 7 plays a role in stabilizing the fixing block 8 in this process to keep the overall structure of the system stable. The lateral safety plate 18 is equipped with a boss 21 and an arc groove 19. These designs are intended to enhance the overall strength and impact resistance of the structure while protecting internal components from damage from external impact. Additionally, the longitudinal mounting bar 20 and upper protective housing 17 provide additional physical protection to ensure the safety and integrity of system components.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent lithium battery thermal runaway automatic warning and fire suppression system, characterized in that: include: A lower protective shell (1), the upper surface of the lower protective shell (1) is fixedly connected to a tank body (2), the front surface of the tank body (2) is provided with a nozzle (3), the inner surface of the lower protective shell (1) is fixedly connected to a fixing block (8), the output end of the fixing block (8) is fixedly connected to a lifting block (6), a plastic clamp (7) is provided inside the lifting block (6), the upper surface of the lifting block (6) is fixedly connected to a spring (10), the upper surface of the lower protective shell (1) is provided with an upper protective shell (17), the upper surface of the upper protective shell (17) is fixedly connected to an indicator light (16), and the lower surface of the lifting block (6) is fixedly connected to a connecting rope (4); The inner surface of the lower protective shell (1) is fixedly connected to an intermediate partition plate (11), the side surface of the intermediate partition plate (11) is provided with a fixing rod groove (12), the upper surface of the intermediate partition plate (11) is provided with ventilation holes (13), the upper surface of the intermediate partition plate (11) is fixedly connected to a temperature sensor (14) located between the ventilation holes (13), and the side surface of the lower protective shell (1) is provided with a lateral safety plate (18).

2. The intelligent lithium battery thermal runaway automatic warning and fire suppression system according to claim 1, characterized in that: A pull switch is provided on the rear surface of the tank body (2), the interior of the tank body (2) is filled with perfluorohexanone, and the lower end of the connecting rope (4) is fixedly connected to the pull switch.

3. The intelligent lithium battery thermal runaway automatic warning and fire suppression system according to claim 1, characterized in that: The upper surface of the plastic card (7) contacts the lower surface of the fixed block (8), a cavity (9) is provided inside the fixed block (8), the upper end of the spring (10) is fixedly connected to the top inner wall of the cavity (9), and the number of the fixed blocks (8) is multiple and distributed on the left and right.

4. The intelligent lithium battery thermal runaway automatic warning and fire suppression system according to claim 1, characterized in that: A fixing plate (23) is fixedly connected to the inner surface of the lower protective shell (1), and a third threaded mounting hole (24) is provided on the upper surface of the fixing plate (23). A second threaded mounting hole (22) is provided on the upper surface of the upper protective shell (17), and the position of the second threaded mounting hole (22) corresponds to that of the third threaded mounting hole (24).

5. The intelligent lithium battery thermal runaway automatic warning and fire suppression system according to claim 1, characterized in that: The temperature sensor (14) is electrically connected to the nozzle (3), the air-permeable through holes (13) are distributed in a rectangular array, and the upper surface of the middle partition plate (11) is provided with a first threaded mounting hole (15).

6. The intelligent lithium battery thermal runaway automatic warning and fire suppression system according to claim 1, characterized in that: A longitudinal mounting rod (20) is fixedly connected to the upper surface of the lower protection shell (1), and the lateral safety plate (18) is elastic.

7. The intelligent lithium battery thermal runaway automatic warning and fire suppression system according to claim 1, characterized in that: The rear surface of the lateral safety plate (18) is provided with a boss (21), and the upper surface of the lateral safety plate (18) is provided with an arc-shaped groove (19).

8. The intelligent lithium battery thermal runaway automatic warning and fire suppression system according to claim 1, characterized in that: A switch is provided on the lower surface of the indicator light (16), and the switch is electrically connected to the temperature sensor (14). A through hole (5) is provided on the upper surface of the middle partition plate (11).

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