Thermal safety simulation test system for energy storage battery pack

Abstract

The thermal safety simulation test system for the energy storage battery pack comprises a battery cell, a test platform, a temperature sensor, an S-shaped heat dissipation pipeline, an upper computer, a top plate and a blockage simulation mechanism, and the blockage simulation mechanism comprises a metal spherical shell, electrorheological fluid, an X-axis linear guide rail, a Y-axis linear guide rail, a moving plate, an electric rotary table, a rotating plate, an electromagnet and an electric field generator. Cooling liquid flowing in the S-shaped heat dissipation pipeline cools the battery core, temperature information of the battery core can be collected through the temperature sensor, a thermal safety simulation test is achieved, electrorheological fluid contained in the metal spherical shell is arranged in the S-shaped heat dissipation pipeline, and the state of the electrorheological fluid can be changed through an electric field generated by the electric field generator. And meanwhile, the metal spherical shell can be driven to move through the electromagnet, blockage at different positions can be simulated, and a simulation test on the heat dissipation effect of the battery core when the cooling system is blocked at different positions can be realized.

Description

Technical Field

[0001] This invention relates to the field of battery testing technology, and in particular to a thermal safety simulation testing system for energy storage battery packs. Background Technology

[0002] In the large-scale application of energy storage battery packs, thermal safety is the core indicator determining their operational reliability. Under charge-discharge cycles, extreme temperature and humidity, and fault conditions, battery packs are prone to local overheating due to heat dissipation system failure, which can trigger single-cell thermal runaway and chain thermal diffusion, leading to safety accidents such as fires and explosions. Currently, thermal safety simulation testing is a key means of predicting such risks. Among them, the simulation of heat dissipation system failure is particularly important. As the core heat dissipation path of the battery pack, the water-cooled pipes are prone to local blockages and changes in flow cross-section, which can directly lead to a sharp drop in heat dissipation efficiency and are one of the main causes of thermal imbalance in the battery pack. Therefore, simulation testing needs to accurately reproduce real fault scenarios with dynamically adjustable blockage locations and controllable blockage degrees to verify the thermal response characteristics of the battery pack under different heat dissipation failure states. However, the existing simulation schemes for water-cooled pipe blockage in the thermal safety simulation testing system of energy storage battery packs have significant limitations. They mostly use fixed blockage components or mechanical valves to adjust the flow channel, which can only simulate blockage at a single location and a fixed degree. They cannot dynamically switch the blockage area and cannot reproduce real faults such as progressive blockage and local non-uniform blockage. Summary of the Invention

[0003] In view of this, the present invention proposes a thermal safety simulation test system for energy storage battery packs, which can simulate blockages of different degrees and locations, thereby improving the accuracy of thermal safety simulation test results for energy storage batteries.

[0004] The technical solution of this invention is implemented as follows: A thermal safety simulation testing system for energy storage battery packs includes battery cells, a test platform, temperature sensors, S-shaped heat dissipation pipes, a host computer, a top plate, and a blockage simulation mechanism. The battery cells are arranged at intervals on the test platform. The temperature sensors are embedded in the upper surface of the test platform and located below the battery cells. The S-shaped heat dissipation pipes are bent along the outer surface of the battery cells. The host computer is located on one side of the test platform, and the top plate is located above the test platform. The blockage simulation mechanism includes a metal spherical shell, an electrorheological fluid, X-axis linear guides, Y-axis linear guides, a moving plate, an electric turntable, a rotating plate, an electromagnet, and an electric field generator. The metal spherical shell is disposed inside the S-shaped heat dissipation pipes. The surface of the device has several micropores. The electrorheological fluid is located inside the metal spherical shell. The diameter of the micropores is smaller than the particle diameter of the electrorheological fluid. The Y-axis linear guide is positioned opposite to the lower surface of the top plate. The top two sides of the X-axis linear guide are connected to the bottom surface of the moving part of the Y-axis linear guide. The moving plate is positioned on the bottom surface of the moving part of the X-axis linear guide. The electric turntable is positioned on the bottom surface of the moving plate, with its rotating surface facing down and connected to the top surface of the turntable. The electromagnet and the electric field generator are symmetrically positioned on the bottom surface of the turntable and above the S-shaped heat dissipation pipe. The host computer is electrically connected to the temperature sensor, the X-axis linear guide, the Y-axis linear guide, the electric turntable, the electromagnet, and the electric field generator.

[0005] Preferably, the blockage simulation mechanism further includes magnetic blocks, which are spaced and embedded in the inner wall of the S-shaped heat dissipation pipe and located outside the movement path of the metal spherical shell.

[0006] Preferably, it also includes a support rod, which is disposed on the upper surface of the test platform and its top end is connected to the lower surface of the top plate.

[0007] Preferably, the blockage simulation mechanism further includes an electric actuator, which is disposed on the bottom surface of the mover of the X-axis linear guide rail, and its output shaft is connected to the top surface of the moving plate. The host computer is electrically connected to the electric actuator.

[0008] Preferably, it also includes a vertical pipe and a gate valve. The vertical pipe is set at the top of the S-shaped heat dissipation pipe and is located above the movement path of the metal spherical shell. The gate valve is set on the vertical pipe, and the host computer is electrically connected to the gate valve.

[0009] Preferably, the blockage simulation mechanism further includes a photoelectric through-beam sensor, which is symmetrically arranged on the inner wall of the connection between the S-shaped heat dissipation pipe and the vertical pipe, and the host computer is electrically connected to the photoelectric through-beam sensor.

[0010] Preferably, the system also includes a coolant storage tank, a pump body, a circulation pipe, and a heat exchanger. The coolant storage tank is mounted on the test platform, the pump body is mounted on both sides of the coolant storage tank, one end of the circulation pipe is connected to the pump body, and the other end is connected to the end of the S-shaped heat dissipation pipe. The heat exchanger is mounted on the circulation pipe through which the coolant flows into the coolant storage tank, and the host computer is electrically connected to the pump body.

[0011] Preferably, the blockage simulation mechanism further includes a translation seat, a dual-axis motor, a lead screw, a sliding plate, a clamping plate, a rotary motor, and an eccentric wheel. The translation seat is slidably disposed on the bottom surface of the rotating plate and located on both sides of the electromagnet. The dual-axis motor is disposed on the bottom surface of the translation seat, and its output shaft is connected to one end of the lead screw. The top surface of the sliding plate is slidably connected to the bottom surface of the translation seat. The lead screw passes through the sliding plate and is screwed to the sliding plate. The two sides of the clamping plate are connected to the side walls of the sliding plate. The rotary motor is disposed on the bottom surface of the dual-axis motor, and its output shaft is connected to the eccentric wheel. The host computer is electrically connected to the dual-axis motor and the rotary motor respectively.

[0012] Preferably, the bottom surface of the rotating plate and the bottom surface of the translation seat are provided with T-shaped grooves, and the top surface of the translation seat and the top surface of the sliding plate are provided with T-shaped sliders, the T-shaped sliders being located in the T-shaped grooves.

[0013] Preferably, the blockage simulation mechanism further includes a spring, which is disposed in a T-shaped groove on the bottom surface of the rotating plate, with its two ends connected to the side wall of the T-shaped groove and the side wall of the T-shaped slider, respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are: ① When the battery cell is placed on the test platform, the S-shaped heat dissipation pipe can be wrapped around the outer wall of the battery cell. The coolant inside can cool the battery cell when it flows. The temperature information of the battery cell can be collected by the temperature sensor and analyzed by the host computer to realize the simulation test process of the thermal safety of the energy storage battery pack, so as to guide the optimization of energy storage batteries and practical applications. ② A metal spherical shell is installed inside the S-shaped heat dissipation pipe, and an electrorheological fluid is installed inside the metal spherical shell. After an electric field is generated by an electric field generator, the electrorheological fluid can be changed from a liquid state to a near-solid state, thereby simulating the blockage inside the S-shaped heat dissipation pipe. This is used to simulate and test the performance and thermal safety of the energy storage battery pack when the blockage occurs inside the heat dissipation pipe. At the same time, an electromagnet can move the metal spherical shell inside the S-shaped heat dissipation pipe to change the location of the blockage, increase the amount of simulation test data, and improve the test accuracy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a thermal safety simulation test system for an energy storage battery pack according to the present invention; Figure 2 This is a top view of the test platform of the thermal safety simulation test system for an energy storage battery pack according to the present invention. Figure 3 This is a schematic diagram of the connection structure between the S-shaped heat dissipation pipe and the vertical pipe of a thermal safety simulation test system for an energy storage battery pack according to the present invention. Figure 4 This is a schematic diagram of the rotating plate of a thermal safety simulation test system for an energy storage battery pack according to the present invention. Figure 5 This is a schematic diagram of the connection structure between the translation seat and the rotating plate of the energy storage battery pack thermal safety simulation test system of the present invention. In the diagram, 1. Battery cell; 2. Test platform; 3. Temperature sensor; 4. S-shaped heat dissipation pipe; 5. Host computer; 6. Top plate; 7. Metal spherical shell; 8. Electrorheological fluid; 9. X-axis linear guide; 10. Y-axis linear guide; 11. Moving plate; 12. Electric turntable; 13. Rotating plate; 14. Electromagnet; 15. Electric field generator; 16. Micropore; 17. Magnetic block; 18. Support rod; 19. Electric actuator; 20. Vertical pipe; 21. Gate valve; 22. Photoelectric beam sensor; 23. Coolant storage tank; 24. Pump body; 25. Circulation pipe; 26. Heat exchanger; 27. Translation seat; 28. Dual-axis motor; 29. ​​Lead screw; 30. Sliding plate; 31. Clamping plate; 32. Rotary motor; 33. Eccentric wheel; 34. T-shaped slide; 35. T-shaped slider; 36. Spring. Detailed Implementation

[0017] To better understand the technical content of this invention, a specific embodiment is provided below, and the invention will be further described in conjunction with the accompanying drawings.

[0018] See Figures 1 to 5This invention provides a thermal safety simulation test system for energy storage battery packs, comprising a battery cell 1, a test platform 2, a temperature sensor 3, an S-shaped heat dissipation pipe 4, a host computer 5, a top plate 6, and a blockage simulation mechanism. The battery cells 1 are arranged at intervals on the test platform 2. The temperature sensor 3 is embedded in the upper surface of the test platform 2 and located below the battery cell 1. The S-shaped heat dissipation pipe 4 is bent along the outer surface of the battery cell 1. The host computer 5 is located on one side of the test platform 2, and the top plate 6 is located above the test platform 2. The blockage simulation mechanism includes a metal spherical shell 7, an electrorheological fluid 8, an X-axis linear guide rail 9, a Y-axis linear guide rail 10, a moving plate 11, an electric turntable 12, a rotating plate 13, an electromagnet 14, and an electric field generator 15. The metal spherical shell 7 is disposed inside the S-shaped heat dissipation pipe 4. The surface of the device is provided with a number of micropores 16. The electrorheological fluid 8 is located inside the metal spherical shell 7. The diameter of the micropores 16 is smaller than the particle diameter of the electrorheological fluid 8. The Y-axis linear guide rail 10 is disposed opposite to the lower surface of the top plate 6. The top two sides of the X-axis linear guide rail 9 are connected to the bottom surface of the mover of the Y-axis linear guide rail 10. The moving plate 11 is disposed on the bottom surface of the mover of the X-axis linear guide rail 9. The electric turntable 12 is disposed on the bottom surface of the moving plate 11, with its rotating surface facing down and connected to the top surface of the rotating plate 13. The electromagnet 14 and the electric field generator 15 are symmetrically disposed on the bottom surface of the rotating plate 13 and located above the S-shaped heat dissipation pipe 4. The host computer 5 is electrically connected to the temperature sensor 3, the X-axis linear guide rail 9, the Y-axis linear guide rail 10, the electric turntable 12, the electromagnet 14, and the electric field generator 15.

[0019] This invention discloses a thermal safety simulation test system for energy storage battery packs, used to simulate and test energy storage battery packs composed of several individual battery cells 1. The battery cells 1 are placed on a test platform 2, and an S-shaped heat dissipation pipe 4 is also provided on the test platform 2. The S-shaped heat dissipation pipe 4 is bent and located outside the battery cells 1. The coolant flowing inside it can carry away the heat generated by the battery cells 1 during operation, thereby cooling the battery cells 1. Several temperature sensors 3 are provided on the test platform 2 to detect the temperature of the battery cells 1 and send the temperature data to a host computer 5. The host computer 5 analyzes the temperature data of the battery cells 1 to realize the thermal safety simulation test.

[0020] A hollow metal spherical shell 7 is installed inside the S-shaped heat dissipation pipe 4, which stores electrorheological fluid 8. The outer surface of the metal spherical shell 7 is provided with a number of micropores 16. The size of the micropores 16 is set to allow the coolant in the S-shaped heat dissipation pipe 4 to pass through, but not to allow dielectric particles or other particles of the electrorheological fluid 8 to pass through. When no electric field is applied, the electrorheological fluid 8 is in a liquid state and does not hinder the normal flow of coolant. However, when an electric field is applied, the state of the electrorheological fluid 8 changes from liquid to a near-solid state, thereby hindering the flow of coolant and simulating the blockage of the S-shaped heat dissipation pipe 4. Therefore, when the electric field generator 15 is working, an electric field can be generated above the metal spherical shell 7 to change the state of the electrorheological fluid 8 and simulate the blockage of the S-shaped heat dissipation pipe 4. Then, the thermal safety of the energy storage battery pack can be evaluated by the temperature data under blockage. Since the degree of blockage is controllable, a variety of test data that closely match real fault scenarios can be obtained to guide the optimization of the battery cell 1 and its actual use.

[0021] An X-axis linear guide 9 and a Y-axis linear guide 10 are also provided on the top plate 6, which can drive the moving plate 11 to move in the X and Y directions, thereby adjusting the position of the electromagnet 14 and the electric field generator 15. The rotating plate 13 can be rotated by the electric turntable 12, so that the electromagnet 14 or the electric field generator 15 can be rotated above the metal spherical shell 7. When the electric field generator 15 is above the metal spherical shell 7, an electric field can be applied to the electrorheological fluid 8 to adjust the degree of blockage. When the electromagnet 14 is above the metal spherical shell 7, it can magnetically attract the metal spherical shell 7. Driven by the X-axis linear guide 9 and the Y-axis linear guide 10, the metal spherical shell 7 can be moved to any position of the S-shaped heat dissipation pipe 4 to simulate blockage at different locations, thereby improving the coverage and accuracy of the simulation test results.

[0022] Preferably, the blockage simulation mechanism further includes magnetic blocks 17, which are spaced and embedded in the inner wall of the S-shaped heat dissipation pipe 4 and located outside the movement path of the metal spherical shell 7.

[0023] When the metal spherical shell 7 is located inside the S-shaped heat dissipation pipe 4, it can be moved to the magnetic block 17. The magnetic attraction of the magnetic block 17 on the metal spherical shell 7 is used to fix the metal spherical shell 7, preventing the flow of coolant from causing the metal spherical shell 7 to move. The magnetic force of the magnetic block 17 on the metal spherical shell 7 is much smaller than the magnetic force of the electromagnet 14 on the metal spherical shell 7, which can ensure that the metal spherical shell 7 can move along the S-shaped heat dissipation pipe 4.

[0024] Preferably, it also includes a support rod 18, which is disposed on the upper surface of the test platform 2 and its top end is connected to the lower surface of the top plate 6.

[0025] The support rod 18 is provided to support the top plate 6 so as to facilitate the stable movement of the electric field generator 15 and the electromagnet 14.

[0026] Preferably, the blockage simulation mechanism further includes an electric actuator 19, which is disposed on the bottom surface of the mover of the X-axis linear guide 9, and its output shaft is connected to the top surface of the moving plate 11. The host computer 5 is electrically connected to the electric actuator 19.

[0027] The electric actuator 19 can drive the movable plate 11 to rise and fall, thereby raising and lowering the electromagnet 14 and the electric field generator 15, so as to magnetically attract the metal spherical shell 7 and change the shape of the electrorheological fluid 8.

[0028] Preferably, it also includes a vertical pipe 20 and a gate valve 21. The vertical pipe 20 is disposed at the top of the S-shaped heat dissipation pipe 4 and is located above the moving path of the metal spherical shell 7. The gate valve 21 is disposed on the vertical pipe 20. The host computer 5 is electrically connected to the gate valve 21.

[0029] During long-term use, particles may agglomerate and settle inside the electrorheological fluid 8, requiring manual intervention to restore its shape. Therefore, a vertical pipe 20 is installed at one of the locations of the S-shaped heat dissipation pipe 4, and a gate valve 21 is installed on the vertical pipe 20. The electromagnet 14 can magnetically attract the metal spherical shell 7 to the vertical pipe 20. When the gate valve 21 is activated, the metal spherical shell 7 can be pulled out of the vertical pipe 20 under the action of magnetic force, so that the staff can replace the metal spherical shell 7 or perform manual intervention.

[0030] Preferably, the blockage simulation mechanism further includes a photoelectric through-beam sensor 22, which is symmetrically arranged on the inner wall of the connection between the S-shaped heat dissipation pipe 4 and the vertical pipe 20, and the host computer 5 is electrically connected to the photoelectric through-beam sensor 22.

[0031] As the metal spherical shell 7 moves along the S-shaped heat dissipation pipe 4 to the vertical pipe 20, it will block the laser emitted by the photoelectric beam sensor 22. When the light path of the current photoelectric beam sensor 22 is restored after being blocked, and the light path of the next photoelectric beam sensor 22 is not blocked, it can be determined that the metal spherical shell 7 is directly below the vertical pipe 20. The host computer 5 can stop the movement of the electromagnet 14 based on the signal transmitted by the photoelectric beam sensor 22 to ensure that the metal spherical shell 7 can smoothly enter the vertical pipe 20.

[0032] Preferably, the system also includes a coolant storage tank 23, a pump body 24, a circulation pipe 25, and a heat exchanger 26. The coolant storage tank 23 is mounted on the test platform 2. The pump body 24 is mounted on both sides of the coolant storage tank 23. One end of the circulation pipe 25 is connected to the pump body 24, and the other end is connected to the end of the S-shaped heat dissipation pipe 4. The heat exchanger 26 is mounted on the circulation pipe 25 through which the coolant flows into the coolant storage tank 23. The host computer 5 is electrically connected to the pump body 24.

[0033] The coolant storage tank 23 stores coolant, which can be pumped into the S-shaped heat dissipation pipe 4 by the pump body 24, and at the same time realize the circulation of coolant. The coolant flowing in the S-shaped heat dissipation pipe can first enter the heat exchanger 26 for heat exchange, and then return to the coolant storage tank 23, thereby improving the recooling efficiency of the coolant.

[0034] Preferably, the blockage simulation mechanism further includes a translation seat 27, a dual-axis motor 28, a lead screw 29, a sliding plate 30, a clamping plate 31, a rotary motor 32, and an eccentric wheel 33. The translation seat 27 is slidably disposed on the bottom surface of the rotating plate 13 and located on both sides of the electromagnet 14. The dual-axis motor 28 is disposed on the bottom surface of the translation seat 27, and its output shaft is connected to one end of the lead screw 29. The top surface of the sliding plate 30 is slidably connected to the bottom surface of the translation seat 27. The lead screw 29 passes through the sliding plate 30 and is screwed to the sliding plate 30. The clamping plate 31 is connected to the side walls of the sliding plate 30 on both sides. The rotary motor 32 is disposed on the bottom surface of the dual-axis motor 28, and its output shaft is connected to the eccentric wheel 33. The host computer 5 is electrically connected to the dual-axis motor 28 and the rotary motor 32 respectively.

[0035] After the metal spherical shell 7 is magnetically attracted away from the vertical tube 20 by the electromagnet 14, low-frequency vibration can be applied to the metal spherical shell 7 to solve the problem of particle agglomeration and sedimentation in the electrorheological fluid 8. When the metal spherical shell 7 is firmly attracted by the electromagnet 14, the dual-axis motor 28 can be started. The dual-axis motor 28 drives the lead screw 29 to rotate. The sliding plates 30 on both sides convert the rotational motion of the lead screw 29 into linear motion and drive the clamping plate 31 to contact the outer wall of the metal spherical shell 7. An arc-shaped position is set on the clamping plate 31, which corresponds to the shape of the metal spherical shell 7, thereby achieving clamping of the metal spherical shell 7. Then, the rotary motor 32 is started, which drives the eccentric wheel 33 to rotate, so that the dual-axis motor 28 drives the translation seat 27 to move back and forth, thereby achieving low-frequency vibration of the metal spherical shell 7 and improving the problem of particle agglomeration and sedimentation in the electrorheological fluid 8.

[0036] Preferably, the bottom surface of the rotating plate 13 and the bottom surface of the translation seat 27 are provided with T-shaped grooves 34, and the top surface of the translation seat 27 and the top surface of the sliding plate 30 are provided with T-shaped sliders 35. The T-shaped sliders 35 are located in the T-shaped grooves 34. The blockage simulation mechanism also includes a spring 36, which is disposed in the T-shaped grooves 34 on the bottom surface of the rotating plate 13, and its two ends are respectively connected to the side walls of the T-shaped grooves 34 and the side walls of the T-shaped sliders 35.

[0037] When the translation seat 27 and the sliding plate 30 are in horizontal displacement, the T-shaped slider 35 can move in the T-shaped groove 34 to ensure that the movement will not be deviated. At the same time, the spring 36 can prevent excessive vibration and prevent the metal ball shell 7 from falling off from below the electromagnet 14.

[0038] 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 principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A simulation and testing system for the thermal safety of an energy storage battery pack, characterized in that, The system includes battery cells, a test platform, temperature sensors, S-shaped heat dissipation pipes, a host computer, a top plate, and a blockage simulation mechanism. The battery cells are arranged at intervals on the test platform. The temperature sensors are embedded in the upper surface of the test platform and located below the battery cells. The S-shaped heat dissipation pipes are bent along the outer surface of the battery cells. The host computer is located on one side of the test platform, and the top plate is located above the test platform. The blockage simulation mechanism includes a metal spherical shell, an electrorheological fluid, an X-axis linear guide, a Y-axis linear guide, a moving plate, an electric turntable, a rotating plate, an electromagnet, and an electric field generator. The metal spherical shell is disposed inside the S-shaped heat dissipation pipes, and its surface is provided with several... The system comprises micropores, with the electrorheological fluid located within a metal spherical shell. The diameter of the micropores is smaller than the particle diameter of the electrorheological fluid. The Y-axis linear guide is positioned opposite each other on the lower surface of the top plate. The top two sides of the X-axis linear guide are connected to the bottom surface of the moving part of the Y-axis linear guide. The moving plate is positioned on the bottom surface of the moving part of the X-axis linear guide. The electric turntable is positioned on the bottom surface of the moving plate, with its rotating surface facing downwards and connected to the top surface of the turntable. The electromagnet and the electric field generator are symmetrically positioned on the bottom surface of the turntable and above the S-shaped heat dissipation pipe. The host computer is electrically connected to the temperature sensor, the X-axis linear guide, the Y-axis linear guide, the electric turntable, the electromagnet, and the electric field generator.

2. The energy storage battery pack thermal safety simulation test system according to claim 1, characterized in that, The blockage simulation mechanism also includes magnetic blocks that are spaced apart and embedded in the inner wall of the S-shaped heat dissipation pipe and located outside the movement path of the metal spherical shell.

3. The energy storage battery pack thermal safety simulation test system according to claim 1, characterized in that, It also includes a support rod, which is set on the upper surface of the test platform and its top end is connected to the lower surface of the top plate.

4. The energy storage battery pack thermal safety simulation test system according to claim 1, characterized in that, The blockage simulation mechanism also includes an electric actuator, which is set on the bottom surface of the mover of the X-axis linear guide rail. Its output shaft is connected to the top surface of the moving plate, and the host computer is electrically connected to the electric actuator.

5. The energy storage battery pack thermal safety simulation test system according to claim 1, characterized in that, It also includes a vertical pipe and a gate valve. The vertical pipe is set at the top of the S-shaped heat dissipation pipe and is located above the movement path of the metal spherical shell. The gate valve is set on the vertical pipe. The host computer is electrically connected to the gate valve.

6. The energy storage battery pack thermal safety simulation test system according to claim 5, characterized in that, The blockage simulation mechanism also includes photoelectric through-beam sensors, which are symmetrically arranged on the inner wall of the connection between the S-shaped heat dissipation pipe and the vertical pipe. The host computer is electrically connected to the photoelectric through-beam sensors.

7. The thermal safety simulation and testing system for an energy storage battery pack according to claim 1, characterized in that, It also includes a coolant storage tank, a pump body, a circulation pipe, and a heat exchanger. The coolant storage tank is set on the test platform, the pump body is set on both sides of the coolant storage tank, one end of the circulation pipe is connected to the pump body, and the other end is connected to the end of the S-shaped heat dissipation pipe. The heat exchanger is set on the circulation pipe on which the coolant flows into the coolant storage tank, and the host computer is electrically connected to the pump body.

8. The energy storage battery pack thermal safety simulation test system according to claim 1, characterized in that, The blockage simulation mechanism also includes a translation seat, a dual-axis motor, a lead screw, a sliding plate, a clamping plate, a rotary motor, and an eccentric wheel. The translation seat is slidably disposed on the bottom surface of the rotating plate and located on both sides of the electromagnet. The dual-axis motor is disposed on the bottom surface of the translation seat, and its output shaft is connected to one end of the lead screw. The top surface of the sliding plate is slidably connected to the bottom surface of the translation seat. The lead screw passes through the sliding plate and is screwed to the sliding plate. The clamping plate is connected to the side walls of the sliding plate on both sides. The rotary motor is disposed on the bottom surface of the dual-axis motor, and its output shaft is connected to the eccentric wheel. The host computer is electrically connected to the dual-axis motor and the rotary motor respectively.

9. The energy storage battery pack thermal safety simulation test system according to claim 8, characterized in that, The bottom surface of the rotating plate and the bottom surface of the translation seat are provided with T-shaped grooves, and the top surface of the translation seat and the top surface of the sliding plate are provided with T-shaped sliders, which are located in the T-shaped grooves.

10. The energy storage battery pack thermal safety simulation test system according to claim 9, characterized in that, The blockage simulation mechanism also includes a spring, which is disposed in a T-shaped groove on the bottom surface of the rotating plate, with its two ends connected to the side wall of the T-shaped groove and the side wall of the T-shaped slider, respectively.

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