Container with anti-explosion function for thermal runaway simulation and charge-discharge test of lithium battery

Abstract

The utility model discloses a lithium battery thermal runaway simulation and charge-discharge test container with an anti-explosion function. The container comprises a basic box body structure; the thermal runaway test structure comprises a plurality of groups of partitioned test grooves arranged in the basic box body structure, the plurality of groups of partitioned test grooves are provided with inlet side parts, and the inlet side parts of the plurality of groups of partitioned test grooves are correspondingly provided with sealed opening and closing doors for laterally closing the partitioned test grooves through the sealed opening and closing doors; the fire-fighting monitoring structure is arranged on the basic box body structure and is used for monitoring thermal runaway parameters; and the fire-fighting water injection structure is arranged on the basic box body structure, and the fire-fighting water injection structure is arranged corresponding to the plurality of groups of partition test grooves and is used for injecting water into the partition test grooves through the fire-fighting water injection structure. The technical problems that in the prior art, a test box cannot conduct simulation tests on various running states of a whole vehicle, the overall function is single, and the test protection requirement cannot be fully met are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of test boxes, and in particular to a container with explosion-proof function for simulating thermal runaway of lithium batteries and performing charge and discharge tests. Background Art

[0002] In recent years, advances in lithium-ion battery technology have rapidly increased the use of electric vehicles. However, in situations such as collisions, lithium-ion batteries can short-circuit, potentially leading to thermal runaway and explosion. Therefore, to prevent thermal runaway, thermal runaway simulations and state-of-charge safety tests are often required to understand the characteristics of thermal runaway.

[0003] In the existing technology, lithium batteries are generally simulated tested separately through small-volume explosion-proof boxes. Although this can meet the test requirements to a certain extent, it is unable to simulate the various operating conditions of the entire vehicle. At the same time, the functionality of traditional small-volume explosion-proof boxes is relatively simple and it is difficult to fully meet the test protection requirements. Utility Model Content

[0004] To this end, the utility model provides a container with explosion-proof function for lithium battery thermal runaway simulation and charge and discharge testing, so as to solve the technical problems that the test box in the existing technology cannot perform simulation tests on various operating conditions of the whole vehicle, and the overall functionality is relatively simple, which makes it difficult to fully meet the test protection requirements.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A container with explosion-proof function for lithium battery thermal runaway simulation and charge-discharge testing, comprising:

[0007] Basic box structure;

[0008] The thermal runaway test structure includes a plurality of partitioned test slots disposed within the basic box structure, wherein each of the plurality of partitioned test slots has an inlet side portion, and each of the plurality of partitioned test slots has a corresponding sealed opening and closing door disposed on the inlet side portion thereof for laterally sealing the partitioned test slots via the sealed opening and closing door;

[0009] A fire monitoring structure, provided in the basic box structure, for monitoring thermal runaway parameters;

[0010] The fire-fighting water injection structure is provided on the basic box structure and is provided correspondingly between the plurality of groups of the partitioned test slots, and is used for injecting water into the partitioned test slots through the fire-fighting water injection structure.

[0011] On the basis of the above technical solution, the present invention is further described as follows:

[0012] As a further solution of the present invention,

[0013] The basic box structure includes a container body and a partition plate fixedly arranged inside the container body, and the container body is formed into a monitoring area and a test area through the partition plate;

[0014] The partition plate is provided with an explosion-proof observation window;

[0015] The thermal runaway test structure, the fire monitoring structure and the fire water injection structure are correspondingly arranged in the test area of ​​the basic box structure.

[0016] As a further solution of the present invention,

[0017] The inner wall of the container body and the outer wall of the partition partition are both covered with a thermal insulation and fireproof layer, and the bottom of the container body is paved with a steel plate layer with a thickness of not less than 4 mm.

[0018] As a further solution of the present invention,

[0019] The thermal runaway test structure further includes a test slot body and a fireproof zone barrier;

[0020] The test slot body is fixedly disposed in the test area, and at least one set of fireproof partitions is evenly spaced and fixedly disposed on the inner side of the test slot body to form at least two sets of evenly arranged partitioned test slots;

[0021] At least two groups of sealed opening and closing doors are provided, and at least two groups of sealed opening and closing doors are respectively connected to the test slot main body by transition assembly, and at least two groups of sealed opening and closing doors are respectively and one-to-one correspondingly provided at the entrance side of at least two groups of partitioned test slots.

[0022] As a further solution of the present invention,

[0023] The fire-fighting water injection structure includes a curved sprinkler pipe and a sprinkler water hose;

[0024] At least two groups of the curved spray pipes are provided, and the at least two groups of the curved spray pipes are fixedly connected to the upper parts of the inner walls of the at least two groups of the partitioned test slots in a one-to-one correspondence;

[0025] The spray water delivery hose is connected to at least two groups of the curved spray pipes respectively, and the spray water delivery hose is respectively provided with a water control solenoid valve corresponding to the at least two groups of the curved spray pipes.

[0026] As a further solution of the present invention,

[0027] The fire monitoring structure includes a smoke sensor alarm component and a monitoring camera;

[0028] The smoke sensor alarm assembly and the surveillance camera are both dispersedly fixedly mounted on the top inner wall of the container body corresponding to the test area, and the smoke sensor alarm assembly corresponds to the upper position of the thermal runaway test structure;

[0029] The monitoring camera faces at least two groups of the partitioned test slots.

[0030] As a further solution of the utility model, it also includes:

[0031] The water mist spray pipe assembly is fixedly connected to the top inner wall of the container body corresponding to the monitoring area and the test area, and the inlet end of the water mist spray pipe assembly is connected to the flange seat set on the top of the container body, so as to connect the water source to the entire container body for covering spraying.

[0032] As a further solution of the utility model, it also includes:

[0033] The fire shutter door body has a base portion fixedly connected to the test area of ​​the container body, and the fire shutter door body can separate the test area to form a closed area corresponding to the thermal runaway test structure.

[0034] As a further solution of the utility model, it also includes:

[0035] Explosion-proof pressure relief valve structure and smoke adsorption filter;

[0036] The container body is provided with the explosion-proof pressure relief valve structure corresponding to the enclosed area, and the inlet end of the explosion-proof pressure relief valve structure is provided with a flame filter for relieving pressure in the enclosed area;

[0037] The smoke adsorption filter is fixedly assembled on the outside of the container body, and an explosion-proof fan is provided at the inlet end of the smoke adsorption filter. The explosion-proof fan is located corresponding to the inner wall of the closed area of ​​the container body, and is used to suck the combustion smoke through the smoke adsorption filter and filter it before discharging it.

[0038] As a further solution of the present invention, the container body is provided with air-conditioning equipment corresponding to the monitoring area and the test area, and the air-conditioning equipment is used to maintain the temperature of the internal area of ​​the container body.

[0039] The utility model has the following beneficial effects:

[0040] The container can effectively serve as the architectural basis for the vehicle operation status simulation test through the coordination of the basic box structure and the thermal runaway test structure. At the same time, it can use the fire monitoring structure to conduct real-time fire monitoring of the vehicle operation status simulation test process. In addition, it can further cooperate with the fire water injection structure, fire rolling shutter door body, water mist spray pipe assembly, explosion-proof pressure relief valve structure and smoke adsorption filter to achieve the explosion-proof and fire-proof requirements when thermal runaway occurs, thereby improving the functional adaptability and practicality of the overall architecture. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the implementation methods or the description of the prior art. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0042] Figure 1 Schematic diagram of the overall axonometric structure of a container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function provided in an embodiment of the present invention.

[0043] Figure 2 Schematic diagram of the overall internal assembly structure of a container for thermal runaway simulation and charge-discharge testing of lithium batteries with explosion-proof function provided by an embodiment of the present invention.

[0044] Figure 3 This is one of the partial structural schematic diagrams corresponding to the thermal runaway test structure position in a container for thermal runaway simulation and charge-discharge testing of lithium batteries with explosion-proof function provided by an embodiment of the present invention.

[0045] Figure 4 This is a second schematic diagram of the local structure corresponding to the thermal runaway test structure position in a container for thermal runaway simulation and charge-discharge testing of lithium batteries with explosion-proof function provided by an embodiment of the present invention.

[0046] Figure 5 A schematic diagram of the assembly structure corresponding to the smoke adsorption filter in a container for thermal runaway simulation and charge-discharge testing of lithium batteries with explosion-proof function provided by an embodiment of the present invention.

[0047] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0048] Basic box structure 1: container body 11, partition plate 12, observation window 121, monitoring area 13, test area 14, opening and closing door 15, test power socket 16;

[0049] Thermal runaway test structure 2: test tank body 21, fire zone barrier 22, sealed opening and closing door 23;

[0050] Fire water injection structure 3: curved sprinkler pipe 31, sprinkler water hose 32, water control solenoid valve 33;

[0051] Fire monitoring structure 4: smoke sensor alarm component 41, surveillance camera 42;

[0052] Fire shutter door body 5; water mist spray pipe assembly 6; explosion-proof pressure relief valve structure 7; smoke adsorption filter 8; air conditioning equipment 9. DETAILED DESCRIPTION

[0053] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0054] The terms "upper", "lower", "left", "right", "middle", etc. used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships, without substantially changing the technical content, should also be regarded as the scope of implementation of the present invention.

[0055] like Figures 1 to 5 As shown, the embodiment of the present invention provides a container with explosion-proof function for thermal runaway simulation and charge-discharge test of lithium batteries, including a basic box structure 1, a thermal runaway test structure 2, a fire water injection structure 3, a fire monitoring structure 4, a fire rolling shutter door body 5, a water mist spray pipe assembly 6, an explosion-proof pressure relief valve structure 7, a smoke adsorption filter 8 and an air-conditioning device 9, which is used to effectively serve as the architectural basis for the whole vehicle operation status simulation test through the cooperation of the basic box structure 1 and the thermal runaway test structure 2. At the same time, the fire monitoring structure 4 can be used to perform real-time fire monitoring of the whole vehicle operation status simulation test process. In addition, the fire water injection structure 3, the fire rolling shutter door body 5, the water mist spray pipe assembly 6, the explosion-proof pressure relief valve structure 7 and the smoke adsorption filter 8 can be further coordinated to achieve the explosion-proof and fire-proof requirements when thermal runaway occurs, which significantly improves the functional adaptability and practicality of the overall architecture. The specific settings are as follows:

[0056] Please refer to Figure 1The basic box structure 1 includes a container body 11 and a partition partition 12 fixed inside the container body 11. The container body 11 is configured as a rectangular box with a length of 10m, a width of 3m and an internal height of 3m. The container body 11 forms a monitoring area 13 and a test area 14 through the partition partition 12, and the partition partition 12 is provided with an explosion-proof observation window 121 for viewing the internal test conditions of the test area 14 in real time from the monitoring area 13 through the observation window 121.

[0057] The container body 11 is provided with opening and closing doors 15 corresponding to the monitoring area 13 and the testing area 14 , respectively, so as to further enhance the independence of the monitoring area 13 and the testing area 14 .

[0058] As a preferred solution of this embodiment, the inner wall of the container body 11 and the outer wall of the partition partition 12 are both covered with a thermal insulation and fireproof layer, and the bottom of the container body 11 is paved with a steel plate layer with a thickness of not less than 4 mm, so as to further effectively enhance the explosion-proof and fire-proof performance of the test box.

[0059] Please refer to Figure 2 and Figure 3 The thermal runaway test structure 2 is correspondingly arranged in the test area 14, and a test power socket 16 is further provided on the inner wall of the test area 14 corresponding to the thermal runaway test structure 2. Specifically, the thermal runaway test structure 2 includes a test slot body 21, a fire zone barrier 22, and a sealed opening and closing door 23. The test slot body 21 is fixedly arranged in the test area 14, and at least one set of fire zone barrier 22 is evenly spaced and fixed on the inner side of the test slot body 21 to form at least two groups of evenly arranged partitioned test slots. At least two sets of sealed opening and closing doors 23 are provided, and the at least two sets of sealed opening and closing doors 23 are respectively connected to the test slot body 21 by transfer assembly, and the at least two sets of sealed opening and closing doors 23 are respectively correspondingly provided on the entrance side of the at least two groups of the partitioned test slots, so that the sealed opening and closing doors 23 can be used to respectively seal the partitioned test slots, thereby preventing overflow when performing fire prevention water storage in a thermal runaway condition, thereby improving the explosion-proof and fire-proof performance of the thermal runaway test structure 2.

[0060] Please continue to refer to Figure 3The fire-fighting water injection structure 3 includes a curved spray pipe 31 and a spray water hose 32; wherein, the curved spray pipe 31 is provided with at least two groups, and the at least two groups of the curved spray pipes 31 are respectively fixedly connected to the upper part of the inner wall of the at least two groups of the partitioned test slots in a one-to-one manner; the spray water hose 32 is respectively connected to the at least two groups of the curved spray pipes 31, and the spray water hose 32 is respectively provided with a water control solenoid valve 33 corresponding to the at least two groups of the curved spray pipes 31; it is used to connect to the water tank through the spray water hose 32, and further use the water control solenoid valve 33 and the curved spray pipe 31 to realize spraying and water injection for the partitioned test slot with thermal runaway.

[0061] Please refer to Figure 2 、 Figure 4 and Figure 5 The fire monitoring structure 4 includes a smoke sensor alarm component 41 and a monitoring camera 42; wherein, the smoke sensor alarm component 41 and the monitoring camera 42 are both dispersedly fixedly arranged on the top inner wall of the test area 14 corresponding to the container body 11, and the smoke sensor alarm component 41 corresponds to the upper position of the thermal runaway test structure 2, and the monitoring camera 42 faces the thermal runaway test structure 2, so as to perform real-time fire monitoring of the vehicle operation status simulation test process through the cooperation of the smoke sensor alarm component 41 and the monitoring camera 42.

[0062] Please continue to refer to Figure 2 The water mist spray pipe assembly 6 is respectively fixedly arranged on the top inner wall of the monitoring area 13 and the test area 14 of the container body 11, and the inlet end of the water mist spray pipe assembly 6 is connected to the flange seat set on the top of the container body 11, so that the fire pipe can be connected to the water mist spray pipe assembly 6 to achieve overall coverage spraying of the container body 11.

[0063] Please continue to refer to Figure 4 The base of the fire shutter door body 5 is fixedly connected to the test area 14 of the container body 11, and the fire shutter door body 5 can separate the test area 14 to form a closed area corresponding to the thermal runaway test structure 2; the container body 11 is provided with an explosion-proof pressure relief valve structure 7 corresponding to the closed area, and the inlet end of the explosion-proof pressure relief valve structure 7 is provided with a flame filter to realize timely release of the closed area pressure through the explosion-proof pressure relief valve structure 7 when thermal runaway occurs.

[0064] Please continue to refer to Figure 5The smoke adsorption filter 8 is fixedly assembled on the outside of the container body 11, and an explosion-proof fan is provided at the inlet end of the smoke adsorption filter 8. The explosion-proof fan is located on the inner wall of the closed area of ​​the container body 11, so as to achieve the purpose of sucking the smoke generated by the combustion through the smoke adsorption filter 8 and filtering it for discharge when thermal runaway occurs.

[0065] As another preferred solution of this embodiment, the container body 11 is provided with air-conditioning equipment 9 corresponding to the monitoring area 13 and the test area 14, so as to effectively maintain the temperature stability of the internal area of ​​the container body 11 through the air-conditioning equipment 9, thereby ensuring the accuracy of the temperature sensing component in monitoring temperature changes.

[0066] It should be noted that an electric control structure is also fixedly provided on the outside of the basic box structure 1, and the electric control structure includes a power supply module and a control module connected by a circuit. The control module can be selected from but is not limited to a single-chip microcomputer control board of model AT80C51 and a microcontroller of model STM32; the temperature sensor component, the smoke sensor alarm component 41 in the fire monitoring structure 4 and the monitoring camera 42 are respectively connected to the control input end of the control module through a circuit, and the control output end of the control module is connected to the input end of the relay through a circuit, and the output end of the relay is respectively connected to the test power socket 16, the water control solenoid valve 33 in the fire water injection structure 3, the fire rolling shutter door body 5, the smoke adsorption filter 8 and the air-conditioning equipment 9 through a circuit, so as to effectively realize the automatic control of the overall architecture through the above-mentioned setting, thereby improving the overall functional practicality.

[0067] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. A container with explosion-proof function for lithium battery thermal runaway simulation and charge and discharge testing, characterized in that: include: Basic box structure; The thermal runaway test structure includes a plurality of partitioned test slots disposed within the basic box structure, wherein each of the plurality of partitioned test slots has an inlet side portion, and each of the plurality of partitioned test slots has a corresponding sealed opening and closing door disposed on the inlet side portion thereof for laterally sealing the partitioned test slots via the sealed opening and closing door; A fire monitoring structure, provided in the basic box structure, for monitoring thermal runaway parameters; The fire-fighting water injection structure is provided on the basic box structure and is provided correspondingly between the plurality of groups of the partitioned test slots, and is used for injecting water into the partitioned test slots through the fire-fighting water injection structure.

2. The container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function according to claim 1 is characterized in that: The basic box structure includes a container body and a partition plate fixedly arranged inside the container body, and the container body is formed into a monitoring area and a test area through the partition plate; The partition plate is provided with an explosion-proof observation window; The thermal runaway test structure, the fire monitoring structure and the fire water injection structure are correspondingly arranged in the test area of ​​the basic box structure.

3. The container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function according to claim 2, characterized in that: The inner wall of the container body and the outer wall of the partition partition are both covered with a thermal insulation and fireproof layer, and the bottom of the container body is paved with a steel plate layer with a thickness of not less than 4 mm.

4. The container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function according to claim 2, characterized in that: The thermal runaway test structure further includes a test slot body and a fireproof zone barrier; The test slot body is fixedly disposed in the test area, and at least one set of fireproof partitions is evenly spaced and fixedly disposed on the inner side of the test slot body to form at least two sets of evenly arranged partitioned test slots; At least two groups of sealed opening and closing doors are provided, and at least two groups of sealed opening and closing doors are respectively connected to the test slot main body by transition assembly, and at least two groups of sealed opening and closing doors are respectively and one-to-one correspondingly provided at the entrance side of at least two groups of partitioned test slots.

5. The container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function according to claim 4 is characterized in that: The fire-fighting water injection structure includes a curved sprinkler pipe and a sprinkler water hose; At least two groups of the curved spray pipes are provided, and the at least two groups of the curved spray pipes are fixedly connected to the upper parts of the inner walls of the at least two groups of the partitioned test slots in a one-to-one correspondence; The spray water delivery hose is connected to at least two groups of the curved spray pipes respectively, and the spray water delivery hose is respectively provided with a water control solenoid valve corresponding to the at least two groups of the curved spray pipes.

6. The container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function according to claim 4, characterized in that: The fire monitoring structure includes a smoke sensor alarm component and a monitoring camera; The smoke sensor alarm assembly and the surveillance camera are both dispersedly fixedly mounted on the top inner wall of the container body corresponding to the test area, and the smoke sensor alarm assembly corresponds to the upper position of the thermal runaway test structure; The monitoring camera faces at least two groups of the partitioned test slots.

7. The container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function according to claim 2, characterized in that: Also includes: The water mist spray pipe assembly is fixedly connected to the top inner wall of the container body corresponding to the monitoring area and the test area, and the inlet end of the water mist spray pipe assembly is connected to the flange seat set on the top of the container body, so as to connect the water source to the entire container body for covering spraying.

8. The container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function according to claim 2, characterized in that: Also includes: The fire shutter door body has a base portion fixedly connected to the test area of ​​the container body, and the fire shutter door body can separate the test area to form a closed area corresponding to the thermal runaway test structure.

9. The container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function according to claim 2, characterized in that: Also includes: Explosion-proof pressure relief valve structure and smoke adsorption filter; The container body is provided with the explosion-proof pressure relief valve structure corresponding to the enclosed area, and the inlet end of the explosion-proof pressure relief valve structure is provided with a flame filter for relieving pressure in the enclosed area; The smoke adsorption filter is fixedly assembled on the outside of the container body, and an explosion-proof fan is provided at the inlet end of the smoke adsorption filter. The explosion-proof fan is located corresponding to the inner wall of the closed area of ​​the container body, and is used to suck the combustion smoke through the smoke adsorption filter and filter it before discharging it.

10. The container for lithium battery thermal runaway simulation and charge-discharge testing with explosion-proof function according to claim 2, characterized in that: The container body is provided with air-conditioning equipment corresponding to the monitoring area and the testing area, and the air-conditioning equipment is used to maintain the temperature of the internal area of ​​the container body.

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