Battery module safety test flooding device

Abstract

The utility model belongs to test test equipment technical field, concretely relates to a kind of battery module safety test immersion device, including base, test execution mechanism is provided in base upper portion, mobile loading mechanism is provided in test execution mechanism upper portion. Through the test execution mechanism being set, the battery module to be tested is placed in mobile loading mechanism, and is moved into water, since pressure exists in water body, water body will be overall floated and shaken, when the water body that floats and shakes contacts water level sensor, start double-end hydraulic cylinder to push first rack to move, and mesh with sector gear to rotate a certain angle, lifting plate and plug post installed on sector gear are lifted, so that plug post is separated from water leakage hole, the water body that floats and shakes is flowed into water receiving side box through water leakage hole, ensure test effect, increase the stability of water body, improve test accuracy, convenient to use, and practicality is strong.

Description

Technical Field

[0001] This utility model belongs to the technical field of testing equipment, specifically relating to a water immersion device for battery module safety testing. Background Technology

[0002] The immersion test for battery module safety is a method of quickly extinguishing a fire by immersing the battery pack in water. During the design, development, and certification testing of lithium batteries and battery packs, a series of safety performance tests are required, including tests for overcharging, short circuits, and thermal runaway—items that are prone to fire and explosion. As the number of series and parallel connections in battery packs for energy storage systems increases and their energy levels rise, the risk of smoke, fire, or explosion from a battery pack is extremely high. Therefore, improving safety during the testing process is crucial.

[0003] A search revealed a Chinese utility model patent application with patent publication number CN222913821U, which discloses a battery pack immersion testing device. The device includes an immersion tank, a conveying mechanism, a position adjustment mechanism, and a support mechanism. Through the cooperation of the immersion tank, conveying mechanism, position adjustment mechanism, and support mechanism, the battery pack is placed on the support mechanism. The position adjustment mechanism can adjust the distance of the support mechanism according to the specifications of the battery pack to accommodate it. Then, the conveying mechanism slowly moves the battery pack down into the immersion tank, ensuring stable lifting and lowering of the battery pack and preventing collisions.

[0004] Regarding the aforementioned technologies, the immersion tank in this testing device is typically filled to almost overflowing to ensure the testing effect of the battery module. This allows the battery module to withstand significant water pressure. However, for larger battery modules, the water may rise too high after entering the immersion tank, potentially causing it to overflow. Therefore, there is an urgent need to design a battery module safety testing immersion device to address these issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model discloses a water immersion device for battery module safety testing.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A battery module safety test water immersion device includes a base, a test execution mechanism is arranged above the base, and a mobile loading mechanism is arranged above the test execution mechanism.

[0008] The test execution mechanism includes a box fixedly mounted on the base. Water receiving side boxes are fixedly installed longitudinally on both sides of the box. A water pumping component is fixedly installed on the rear side of the water receiving side box. Water leakage holes are fixedly and longitudinally on both side walls of the box. A water level sensor is fixedly installed inside the box. A rotating rod is rotatably mounted on the outer wall of the box. A lifting plate is fixedly mounted on the outer surface of the rotating rod. A plug column is fixedly mounted longitudinally on the lifting plate. A sector gear is fixedly mounted on one end of the rotating rod. A first rack is meshed on one side of the sector gear. A double-headed hydraulic cylinder is fixedly mounted on one end of the first rack. An observation hole is opened on the front side of the box. A scale is fixedly mounted on one side of the observation hole.

[0009] Preferably, the mobile loading mechanism includes guide rods fixedly disposed on the front and rear sides above the test execution mechanism, a movable platform slidably mounted on the outer surface of the guide rods, a frame fixedly mounted above the movable platform, a rotating component fixedly mounted above the frame, a second rack meshing on one side of the rotating component, a winch component fixedly mounted above the frame, an installation plate fixedly mounted on the winch component, and a load-bearing net box fixedly mounted on the installation plate.

[0010] Preferably, the pumping assembly includes an electric pump body located on the rear side of the water receiving tank, and a pipe body is fixedly installed on the electric pump body.

[0011] Preferably, a drain pipe is fixedly installed on the rear side of the box.

[0012] Preferably, the rotating assembly includes a first motor disposed above the frame, and a gear is fixedly mounted on the power end of the first motor.

[0013] Preferably, the winch assembly includes a winch disposed above the frame, and a steel wire is disposed on the winch.

[0014] The beneficial effects are:

[0015] This utility model discloses a battery module safety testing immersion device. Through a set testing execution mechanism, the battery module to be tested is placed in a mobile loading mechanism and moved into the water. Due to the pressure in the water, the water will float and slosh. When the floating water comes into contact with the water level sensor, a double-headed hydraulic cylinder is activated to push the first rack to move and engage the sector gear to rotate at a certain angle. The lifting plate and plug on the sector gear are raised, causing the plug to disengage from the drain hole. The floating water then flows into the water receiving tank through the drain hole, ensuring the testing effect, increasing water stability, improving testing accuracy, and making it convenient and practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of this utility model from another perspective;

[0019] Figure 4 yes Figure 1 A schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Base; 2. Test execution mechanism; 201. Box; 202. Observation hole; 203. Scale; 204. Water receiving side box; 205. Electric pump body; 2051. Pipe body; 206. Drain pipe; 207. Leakage hole; 208. Water level sensor; 209. Lifting plate; 2091. Rotary rod; 210. Plug column; 211. Sector gear; 212. First rack; 213. Double-headed hydraulic cylinder; 3. Mobile loading mechanism; 301. Guide rod; 302. Moving platform; 303. Second rack; 304. Gear; 305. First motor; 306. Frame; 307. Winch; 308. Steel wire; 309. Mounting plate; 310. Bearing cage. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. The terms "first", "second", and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Reference Figure 1-4 One embodiment of this utility model is a battery module safety test immersion device, which includes a base 1, a test execution mechanism 2 above the base 1, and a mobile loading mechanism 3 above the test execution mechanism 2.

[0025] In this embodiment: the test execution mechanism 2 includes a box 201 fixedly installed above the base 1. Water receiving side boxes 204 are fixedly installed longitudinally on both sides of the box 201. A water pumping component is fixedly installed on the rear side of the water receiving side box 204. Water leakage holes 207 are fixedly and longitudinally on both side walls of the box 201. A water level sensor 208 is fixedly installed inside the box 201. A rotating rod 2091 is rotatably installed on the outer side wall of the box 201. A lifting plate 209 is fixedly installed on the outer surface of the rotating rod 2091. A plug post 210 is fixedly installed longitudinally on the lifting plate 209. The plug post 210 is coaxial with the water leakage hole 207. A sealing ring is installed on the outer surface of the plug post 210. The sealing ring cooperates with the water leakage hole 207 to seal. A sector gear 211 is fixedly mounted at one end of the rotating rod 2091. A first rack 212 is meshed on one side of the sector gear 211. A double-headed hydraulic cylinder 213 is fixedly mounted at one end of the first rack 212. An observation hole 202 is provided on the front side of the housing 201, and a scale 203 is fixedly mounted on one side of the observation hole 202. The water pumping assembly includes an electric pump body 205 located at the rear of the water receiving tank 204, and a pipe body 2051 is fixedly mounted on the electric pump body 205. A drain pipe 206 is fixedly mounted on the rear side of the housing 201. A one-way valve (not shown in the figure) is installed on the drain pipe 206. A water level probe is installed on the water level sensor 208 and is in contact with the water body. This is existing technology. The water level sensor 208 refers to an instrument that can convert the water level parameter of the measured point into a corresponding electrical signal in real time. The housing 201 is transparent, and a sealed explosion-proof transparent glass is installed on the observation hole 202.

[0026] In this embodiment: the mobile loading mechanism 3 includes guide rods 301 fixedly mounted on the front and rear sides above the test execution mechanism 2. A moving platform 302 is slidably mounted on the outer surface of the guide rods 301. A frame 306 is fixedly mounted above the moving platform 302. A rotating assembly is fixedly mounted above the frame 306. A second rack 303 is meshed on one side of the rotating assembly. A winch assembly is fixedly mounted above the frame 306. An mounting plate 309 is fixedly mounted on the winch assembly. A carrying net box 310 is fixedly mounted on the mounting plate 309. The rotating assembly includes a first motor 305 mounted above the frame 306. A gear 304 is fixedly mounted on the power end of the first motor 305. The winch assembly includes a winch 307 mounted above the frame 306. A steel wire 308 is mounted on the winch 307. The winch 307 includes a stepper motor. A mesh panel door is rotatably mounted on one side of the carrying net box 310. A movable positioning pin is installed between the mesh panel door and the carrying net box 310. The mounting plate 309 and the support cage 310 are connected by bolts. The support cage 310 is adjusted according to the size of the battery module.

[0027] Working Principle: In use, the carrying net box 310 is first adjusted according to the size of the battery module. The battery module is placed inside and fixed. The winch 307 is started to lift the battery module inside the carrying net box 310. Simultaneously, the first motor 305 is started to drive the gear 304 to rotate, meshing with the second rack 303 for lateral movement. At the same time, the moving platform 302, frame 306, winch 307, carrying net box 310, and battery module, all mounted on the outer surface of the guide rod 301, move laterally, moving the carrying net box 310 containing the battery module directly above the box body 201. The winch 307 is then started to lower the carrying net box 310 containing the battery module into the water body of the box body 201. Due to the pressure in the water, when the carrying net box 310 containing the battery module descends into the water, the pressurized water will rise and slosh, overflowing the box body 201. At this point, when the water comes into contact with the water level sensor 208... The double-headed hydraulic cylinder 213 is activated to push the first racks 212 at both ends outward, and engages the sector gear 211 to rotate a certain angle. The lifting plate 209 and the plug 210 mounted on the sector gear 211 are then raised, causing the plug 210 to disengage from the drain hole 207. This allows the floating water to flow through the drain hole 207 into the receiving tank 204. Once the water has drained, the double-headed hydraulic cylinder 213 is restarted to push the first racks 212 at both ends outward. The device retracts and engages the sector gear 211 to rotate, causing the lifting plate 209 and the plug 210 to fall back and fit against the outer side wall of the tank 201, so that the plug 210 and the drain hole 207 cooperate to seal and conduct a safety test. After the test is completed, the electric pump body 205 and the pipe body 2051 are started to pump the water in the water receiving side tank 204 back into the tank 201. When the water in the tank 201 needs to be replaced, it is discharged and replaced through the drain pipe 206.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. A battery module safety testing immersion device, characterized in that: Includes a base (1), a test execution mechanism (2) is provided above the base (1), and a mobile loading mechanism (3) is provided above the test execution mechanism (2); The test execution mechanism (2) includes a housing (201) fixedly mounted above the base (1). Water receiving side boxes (204) are longitudinally fixedly installed on both sides of the housing (201). A water pumping assembly is fixedly installed on the rear side of the water receiving side boxes (204). Water leakage holes (207) are longitudinally and rectangularly fixedly arranged on both side walls of the housing (201). A water level sensor (208) is fixedly installed inside the housing (201). A rotating rod (2091) is rotatably mounted on the outer side wall of the housing (201). 1) A lifting plate (209) is fixedly installed on the outer surface. A plug column (210) is fixedly installed longitudinally on the lifting plate (209). A sector gear (211) is fixedly installed at one end of the rotating rod (2091). A first rack (212) is meshed on one side of the sector gear (211). A double-headed hydraulic cylinder (213) is fixedly installed at one end of the first rack (212). An observation hole (202) is opened on the front side of the box (201). A scale (203) is fixedly installed on one side of the observation hole (202).

2. The battery module safety testing immersion device according to claim 1, characterized in that: The mobile loading mechanism (3) includes a guide rod (301) fixedly installed on the front and rear sides above the test execution mechanism (2). A moving platform (302) is slidably installed on the outer surface of the guide rod (301). A frame (306) is fixedly installed above the moving platform (302). A rotating component is fixedly installed above the frame (306). A second rack (303) is engaged on one side of the rotating component. A winch component is fixedly installed above the frame (306). An installation plate (309) is fixedly installed on the winch component. A carrying net box (310) is fixedly installed on the installation plate (309).

3. The battery module safety testing immersion device according to claim 1, characterized in that: The pumping assembly includes an electric pump body (205) located on the rear side of the water receiving side tank (204), and a pipe body (2051) is fixedly installed on the electric pump body (205).

4. The battery module safety testing immersion device according to claim 1, characterized in that: A drain pipe (206) is fixedly installed on the rear side of the box (201).

5. The battery module safety testing immersion device according to claim 2, characterized in that: The rotating assembly includes a first motor (305) disposed above the frame (306), and a gear (304) is fixedly mounted on the power end of the first motor (305).

6. The battery module safety testing immersion device according to claim 2, characterized in that: The winch assembly includes a winch (307) disposed above the frame (306), and a steel wire (308) is disposed on the winch (307).

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