Energy storage safety evaluation device

Abstract

The utility model relates to energy storage security evaluation device, including machine case and install the jar body at one end of machine case, the jar body is used to load nitrogen, install three -way pipe on the jar body, one end of three -way pipe installs first valve, install the communicating pipe on first valve, install the air jet pipe on machine case, the other end of communicating pipe links to air jet pipe, fixedly connect the limit stop on machine case, install the receiving box on machine case. The utility model discloses be provided with jar body, three -way pipe, communicating pipe, second valve, receiving box, filter tank, air jet pipe, limit stop and first slot, first slot is set up in machine case internal hole receiving box clamping, by opening second valve can be with nitrogen via air jet pipe delivery to machine case inside, thereby make the air in machine case via filter tank and discharge, reduce oxygen concentration and reduce the evaluation combustion probability, and the high temperature high pressure injection object is swept to the inside collection of receiving box, improve machine case internal cleaning efficiency, convenient secondary use.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage testing technology, and in particular relates to an energy storage safety evaluation device. Background Technology

[0002] Energy storage safety assessment devices are specialized testing equipment used to conduct full life-cycle safety performance testing and risk assessment for various energy storage systems / equipment, such as electrochemical energy storage and mechanical energy storage. Their core function is to simulate various extreme operating conditions (such as overcharging and over-discharging, high and low temperatures, short circuits, and mechanical shocks) to quantitatively / qualitatively test key safety indicators of energy storage units, including thermal runaway threshold, insulation performance, explosion-proof capability, and voltage / current stability. This provides standardized data support for energy storage product certification, fault tracing, and technology optimization, making it a core piece of equipment for safety management in the energy storage industry.

[0003] Traditional energy storage battery safety testing devices typically consist of a sealed explosion-proof enclosure, an abuse triggering unit (such as a uniaxial needle penetration or extrusion head), and a basic data acquisition system. In practical applications, traditional enclosures lack effective internal partitioning and instantaneous suppression structures for the high-temperature, high-pressure ejecta generated during battery thermal runaway. This leads to rapid internal pressure buildup, difficulty in cleaning harmful gases and residues after testing, secondary safety hazards, and reduced testing efficiency. Therefore, developing a novel testing device capable of multi-field coupled loading and efficient internal deflagration suppression and cleaning is crucial for improving the safety and efficiency of energy storage battery safety testing. Utility Model Content

[0004] This utility model provides an energy storage safety evaluation device, which aims to solve the problem that existing energy storage battery safety evaluation devices generate high-temperature and high-pressure ejected materials during the test process due to battery thermal runaway, resulting in combustion and harmful gas residue, which affects secondary use.

[0005] This utility model is implemented as follows: an energy storage safety assessment device includes a chassis and a tank installed at one end of the chassis. The tank is used to hold nitrogen gas. A three-way pipe is installed on the tank. A first valve is installed at one end of the three-way pipe. A connecting pipe is installed on the first valve. An air jet pipe is installed on the chassis. The other end of the connecting pipe is connected to the air jet pipe. A limit bracket is fixedly connected to the chassis. A receiving box is installed on the chassis. A first slot is opened on the chassis for the receiving box to be snapped into. A filter canister is installed on the receiving box. The filter canister and the receiving box are connected. When the first valve is opened, the nitrogen gas inside the tank is transported to the inside of the chassis through the three-way pipe, the connecting pipe and the air jet pipe.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: by setting up a tank, a three-way pipe, a connecting pipe, a second valve, a receiving box, a filter tank, a jet pipe, a limiting frame and a first slot, the first slot is opened in the internal hole of the casing and the receiving box is snapped in place. By opening the second valve, nitrogen can be transported into the casing through the jet pipe, so that the air inside the casing is discharged through the filter tank, reducing the oxygen concentration and reducing the probability of combustion in the test. The high temperature and high pressure jet is blown into the receiving box for collection, improving the cleaning efficiency of the inside of the casing and facilitating secondary use.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, two clips are installed on the chassis, each with an L-shaped baffle inserted inside. The baffles are inserted into the clips to limit the displacement of the receiving box, thus improving the stability of the receiving box installation.

[0009] Furthermore, a hydraulic cylinder is installed on the chassis, and a limit seat is installed at the output end of the hydraulic cylinder. Several contacts are installed on the limit seat. When the hydraulic cylinder is started, it drives the contacts to move vertically and make contact with the energy storage device.

[0010] Furthermore, the limiting seat has a second slot for the energy storage device to be snapped into place, which improves the stability of the energy storage device's installation and positioning.

[0011] Furthermore, a sealing ring is installed on the receiving box, and a handle is installed on the side wall of the chassis near the filter tank.

[0012] Furthermore, a filter element is snapped into the inside of the filter canister, and an end cap is threaded to the end of the filter canister. A grid mesh is fixedly connected to the middle of the end cap for easy replacement of the filter element.

[0013] Furthermore, a second valve is installed at the other end of the tee pipe, which is used to control the opening or closing of the tee pipe.

[0014] Furthermore, a sealed door is rotatably connected to the chassis, and an observation window is embedded in the sealed door, which improves the convenience of observation.

[0015] The beneficial effects of adopting the above-mentioned further solution are as follows: by setting up a baffle, a locking block and a sealing ring, the sealing ring is in the shape of a ring and is locked onto the receiving box, which improves the sealing performance of the connection between the receiving box and the chassis. The baffle is inserted into the locking block to restrict the displacement of the receiving box, thereby improving the installation stability of the receiving box during the test. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 4 This is a cross-sectional view of the chassis structure of this utility model; Figure 5 This is a cross-sectional view of the receiving box of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1. Chassis; 2. Tank; 3. T-pipe; 4. Connecting pipe; 5. Hydraulic cylinder; 6. Limit seat; 7. Sealing door; 8. Contact; 9. First valve; 10. Second valve; 11. Receiving box; 12. Filter tank; 13. Air jet pipe; 14. Limit frame; 15. Baffle; 16. First slot; 17. Locking block; 18. Second slot; 19. Observation window; 20. Sealing ring; 21. End cap. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] like Figure 1-5As shown, the embodiment provided by this utility model: an energy storage safety assessment device, including a housing 1 and a tank 2 installed at one end of the housing 1. A sealing door 7 is hinged and rotatably connected to the housing 1, and the sealing door 7 is used to close the housing 1. An observation window 19 is embedded in the sealing door 7. The observation window 19 is made of explosion-proof glass and is transparent, which improves the convenience of observation. The tank 2 is used to load nitrogen gas. A three-way pipe 3 is installed on the tank 2 and is connected to the tank 2. The other two ends of the three-way pipe 3 are respectively... Used for inflation and deflation, a first valve 9 is installed at one end of the three-way pipe 3. When the first valve 9 is opened, nitrogen gas inside the tank 2 is released. A connecting pipe 4 is installed on the first valve 9. An air jet pipe 13 is bolted to the casing 1. The other end of the connecting pipe 4 is connected to the air jet pipe 13. The air jet pipe 13 has a spray nozzle and is used to evenly spray nitrogen gas. A limit frame 14 is fixedly connected to the upper part of the casing 1. The limit frame 14 is used to support the energy storage device. The gaps facilitate the flow of air and debris particles. A receiving box 11 is installed on the casing 1, and a first slot 16 is provided on the casing 1 for the receiving box 11 to engage. A filter canister 12 is installed on the receiving box 11, and the filter canister 12 is connected to the receiving box 11. When the first valve 9 is opened, nitrogen gas inside the canister 2 is transported into the casing 1 through the three-way pipe 3, the connecting pipe 4, and the jet pipe 13. This process is achieved through the canister 2, the three-way pipe 3, the connecting pipe 4, the second valve 10, and the receiving box 11. 1. Filter canister 12, jet pipe 13, limit bracket 14 and first slot 16. The first slot 16 is opened in the internal hole of the housing 1 and is snapped into the receiving box 11. By opening the second valve 10, nitrogen can be delivered into the housing 1 through the jet pipe 13, so that the air inside the housing 1 is discharged through the filter canister 12, reducing the oxygen concentration and reducing the probability of combustion in the test. The high temperature and high pressure jet is blown into the receiving box 11 for collection, improving the cleaning efficiency of the housing 1 and facilitating secondary use.

[0022] like Figure 2-4 As shown, two locking blocks 17 are installed on the chassis 1. Each locking block 17 has a baffle 15 inserted inside. The baffle 15 is L-shaped and is inserted into the locking block 17 to limit the displacement of the receiving box 11, thereby improving the installation stability of the receiving box 11. A sealing ring 20 is installed on the receiving box 11. A handle is installed on the side wall of the chassis 1 near the filter tank 12. By setting up baffles 15, locking blocks 17 and sealing rings 20, the sealing rings 20 are made of rubber and are ring-shaped and are locked onto the receiving box 11. The sealing rings 20 have a certain degree of elasticity, which can improve the sealing performance of the connection between the receiving box 11 and the chassis 1. By inserting baffles 15 into the locking blocks 17 to limit the displacement of the receiving box 11, the installation stability of the receiving box 11 during the test is improved.

[0023] like Figure 1-4As shown, a hydraulic cylinder 5 is installed on the chassis 1. A limit seat 6 is installed at the output end of the hydraulic cylinder 5. Several contacts 8 are installed on the limit seat 6. When the hydraulic cylinder 5 is started, it drives the contacts 8 to move vertically and contact and collide with the energy storage device. A second slot 18 is opened on the limit seat 6. The second slot 18 is used for the energy storage device to be snapped in, which improves the stability of the installation and positioning of the energy storage device.

[0024] The filter canister 12 has a filter element inside, which is a composite structure of non-woven fabric and activated carbon filter cotton. The surface of the activated carbon filter cotton is honeycomb-shaped and can adsorb harmful molecular particles in the gas. The end of the filter canister 12 is threadedly connected to the end cap 21, and a grid is fixedly connected in the middle of the end cap 21. The filter element inside the filter canister 12 can be replaced by rotating counterclockwise and removing the end cap 21. The other end of the three-way pipe 3 is equipped with a second valve 10, which is used to control the opening or closing of the three-way pipe 3.

[0025] Working principle: When using this energy storage safety assessment device, the operator first connects an external power supply, then places the energy storage device to be tested on the limiting frame 14, and starts the hydraulic cylinder 5 to push the limiting seat 6 to move vertically, so that the test sample is stuck inside the second slot 18, thereby limiting the lateral displacement of the sample. Then, by opening the second valve 10, nitrogen can be delivered into the machine box 1 through the jet pipe 13, so that the air inside the machine box 1 is discharged through the filter canister 12, reducing the oxygen concentration and reducing the probability of combustion during the assessment. As the limiting seat 6 continues to move vertically, it drives the contact 8 to move vertically and contact the energy storage device to collide and squeeze, thereby realizing the breakage and puncture test. When the sample is broken and produces high-temperature ejected material, the jet pipe 13 continuously discharges nitrogen. The high-temperature and high-pressure ejected material is blown into the receiving box 11 by the nitrogen flow for collection. The gas is then filtered by the filter element inside the filter canister 12 before being discharged, improving the cleaning efficiency inside the machine box 1 and facilitating secondary use.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0027] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0028] It should be understood that the disclosed apparatus can be implemented in other ways, as illustrated in the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of the units described above may be implemented in other ways in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

Claims

1. An energy storage safety evaluation device, characterized in that: It includes a chassis (1) and a tank (2) installed at one end of the chassis (1). The tank (2) is used to load nitrogen. A three-way pipe (3) is installed on the tank (2). A first valve (9) is installed at one end of the three-way pipe (3). A connecting pipe (4) is installed on the first valve (9). An air jet pipe (13) is installed on the chassis (1). The other end of the connecting pipe (4) is connected to the air jet pipe (13). A limit bracket (1) is fixedly connected to the upper part of the chassis (1). 4) A receiving box (11) is installed on the chassis (1). A first slot (16) is opened on the chassis (1). The first slot (16) is used for the receiving box (11) to be snapped in. A filter tank (12) is installed on the receiving box (11). The filter tank (12) and the receiving box (11) are connected. When the first valve (9) is opened, the nitrogen inside the tank (2) is transported to the inside of the chassis (1) through the three-way pipe (3), the connecting pipe (4) and the jet pipe (13).

2. The energy storage safety evaluation device according to claim 1, characterized in that: Two card blocks (17) are installed on the chassis (1). Each card block (17) has a baffle (15) inserted inside. The baffle (15) is L-shaped.

3. The energy storage safety evaluation device according to claim 2, characterized in that: A hydraulic cylinder (5) is installed on the chassis (1). A limit seat (6) is installed at the output end of the hydraulic cylinder (5). Several contacts (8) are installed on the limit seat (6). When the hydraulic cylinder (5) is started, it drives the contacts (8) to move vertically and come into contact with the energy storage device.

4. The energy storage safety evaluation device according to claim 3, characterized in that: The limiting seat (6) has a second slot (18) for the energy storage device to be snapped into place.

5. The energy storage safety evaluation device according to claim 1, characterized in that: A sealing ring (20) is installed on the receiving box (11), and a handle is installed on the side wall of the chassis (1) near the filter tank (12).

6. The energy storage safety evaluation device according to claim 5, characterized in that: The filter canister (12) has a filter element snapped inside, and the end of the filter canister (12) is threadedly connected to an end cap (21), with a grid mesh fixedly connected in the middle of the end cap (21).

7. The energy storage safety evaluation device according to claim 1, characterized in that: The other end of the three-way pipe (3) is equipped with a second valve (10), which is used to control the opening or closing of the three-way pipe (3).

8. The energy storage safety evaluation device according to claim 1, characterized in that: A sealing door (7) is rotatably connected to the chassis (1), and an observation window (19) is embedded in the sealing door (7).

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