Multifunctional target cabin for light-gas gun high-speed penetration power battery experiment

Abstract

The invention relates to a multifunctional target cabin for a light-gas gun high-speed penetration power battery experiment, belongs to the technical field of impact dynamics experiments, and solves the problem that in the prior art, a target cabin of a light-gas gun is difficult to effectively deal with the phenomena that a power battery is discontinuously accompanied with toxic smoke, fire, explosion and the like after being subjected to high-speed penetration. The multifunctional target cabin for the light-gas gun high-speed penetration power battery experiment comprises a fixed target cabin, a movable target frame and a water tank, and a power battery sample is arranged on the movable target frame. The multifunctional target cabin for the light-gas gun high-speed penetration power battery experiment, provided by the invention, is relatively light in weight and relatively low in production cost, and can effectively perform emergency treatment on a power battery sample subjected to penetration in the target cabin.

Description

Technical Field

[0001] The invention relates to a multifunctional target cabin for a light gas gun high-speed penetration power battery experiment, belonging to the technical field of impact dynamics experiments. Background Art

[0002] Power batteries refer to rechargeable batteries that provide power for electric vehicles, power tools, electric bicycles, electric ships, and energy storage systems, and can store and release power when used. Compared with ordinary batteries, power batteries have advantages such as excellent energy density, power density, and cycle life. As an important military energy system, they are widely used in military equipment such as land, sea, air, and space, as well as individual combat. They are easy to become targets of enemy fire, thus bringing huge safety risks to soldiers and military equipment.

[0003] At present, the research on the safety of power batteries is mainly focused on power batteries for civilian electric vehicles. Through experiments and simulations, the failure mechanism, thermal runaway mechanism and thermal runaway characteristics of power batteries under conventional low-speed load abuse environments such as collision, extrusion, puncture and heating are studied. However, compared with civilian electric vehicles, special warfare soldiers, military equipment and facilities are usually exposed to more severe battlefield environments and need to deal with more extreme abuse conditions such as high-speed penetrators. Due to the fast loading speed and large impact load of battlefield loads, power batteries are prone to armor-piercing damage, material splashing, local instantaneous high temperature, liquefaction and gasification phase change and other special phenomena in a very short time. Therefore, light gas guns are usually used to carry out high-speed penetration simulation experiments on power batteries. However, in the prior art, the target cabin configured by the light gas gun equipment itself only has the function of preventing material or projectile splashing, and the power battery will also be accompanied by toxic smoke, fire, explosion and other phenomena after high-speed penetration, and the above phenomena do not necessarily occur in succession, but may occur for a period of time after penetration, resulting in a high degree of danger of the power battery after impact.

[0004] Therefore, in view of the problem that the target capsule of the light gas gun in the prior art is difficult to effectively deal with the intermittent toxic smoke, fire, explosion and other phenomena of the power battery after being subjected to high-speed penetration, it is necessary to provide a multifunctional target capsule for the light gas gun high-speed penetration power battery experiment. Summary of the invention

[0005] In view of the above analysis, the present invention aims to provide a multifunctional target capsule for light gas gun high-speed penetration of power batteries experiments, so as to solve the problem that the target capsule of light gas guns in the prior art is difficult to effectively deal with the intermittent toxic smoke, fire, explosion and other phenomena of power batteries after high-speed penetration.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] A multifunctional target cabin for a light gas gun high-speed penetration power battery experiment comprises a fixed target cabin, a movable target stand and a water tank. The power battery sample is arranged on the movable target stand. The fixed target cabin comprises an upper cabin body, a middle cabin body and a lower cabin body which are arranged in sequence from top to bottom. Two electromagnets are arranged in the middle cabin body. Two armatures are arranged on the movable target stand body. The electromagnet fixes the movable target stand in the middle cabin body by attracting the armature. The water tank is arranged in the lower cabin body. The armature is released by the electromagnet and the movable target stand is immersed in the water tank by free fall so as to carry out emergency treatment of the power battery sample.

[0008] Furthermore, it also includes an exhaust system, which is arranged on the top of the upper cabin.

[0009] Furthermore, the middle cabin includes a second frame, a cabin door, a second side panel, a third side panel and a fourth side panel.

[0010] Furthermore, the upper end of the second frame is connected to the upper cabin body, and the lower end is connected to the lower cabin body, and the cabin door, the second side panel, the third side panel and the fourth side panel are respectively fixed on the four side surfaces of the second frame.

[0011] Furthermore, the second side plate and the third side plate are respectively arranged at two ends of the hatch, the second side plate is opposite to the tube mouth of the light gas gun barrel, and the fourth side plate is opposite to the hatch.

[0012] Furthermore, it also includes a speedometer, which is fixed on the second side plate.

[0013] Furthermore, a target cabin shooting hole penetrating the plate body is provided on the second side plate, a speed meter shooting hole penetrating the main body is provided on the speed meter, and the light gas gun barrel, the speed meter shooting hole and the target cabin shooting hole are coaxially arranged.

[0014] Furthermore, the movable target stand also includes a target stand body, and the armature is arranged on the top of the target stand body.

[0015] Furthermore, the middle cabin also includes 4 linear guide rails, 2 linear guide rails are arranged on the inner side of the second side panel, and the other 2 linear guide rails are arranged on the third side panel.

[0016] Furthermore, the movable target frame also includes four sliders, which are vertically installed on the outside of the four top corners of the target frame body respectively. The slider body is provided with a slot matching the linear guide rail. A single linear guide rail is engaged with a single slider and the slider can move along the linear guide rail.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] (1) The multifunctional target cabin for the light gas gun high-speed penetration power battery experiment of the present invention has two electromagnets in the middle cabin body and two armatures on the movable target frame body. The electromagnet fixes the movable target frame in the middle cabin body by attracting the armature. The water tank is arranged in the lower cabin body. The armature is released by the electromagnet and the movable target frame is immersed in the water tank by free fall so as to perform emergency treatment on the power battery sample after penetration. The structure is simple and the manufacturing cost is low, which is conducive to mass production and application.

[0019] (2) The multifunctional target capsule of the present invention for the light gas gun high-speed penetration power battery experiment, the movable target frame includes a linear guide rail and a slider, the linear guide rail is installed in the middle cabin body, and the slider is installed on the target frame body, and the movable target frame is vertically moved in the fixed target capsule by engaging the slider with the linear guide rail.

[0020] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0022] Figure 1 This is a schematic diagram of the structure of a multifunctional target capsule used for a light gas gun high-speed penetration power battery experiment in Example 1 of the present invention;

[0023] Figure 2 This is a structural schematic diagram of a fixed target capsule of a multifunctional target capsule used for a light gas gun high-speed penetration power battery experiment according to Example 1 of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of a movable target frame of a multifunctional target capsule used for a light gas gun high-speed penetration power battery experiment according to Example 1 of the present invention;

[0025] Figure 4 This is a schematic structural diagram of a multifunctional target cabin with a winch and a spray pipe for a light gas gun high-speed penetration power battery experiment according to Example 2 of the present invention;

[0026] Figure 5 This is a schematic diagram of the connection between the multifunctional target capsule base and the winch used for the light gas gun high-speed penetration power battery experiment of Example 2 of the present invention.

[0027] Reference numerals:

[0028] 1-speed meter; 2-exhaust system; 3-fixed target cabin; 31-upper cabin; 311-first frame; 312-top plate; 32-middle cabin; 321-second frame; 322-cabin door; 323-second side plate; 324-linear guide; 33-lower cabin; 331-third frame; 4-movable target stand; 41-target stand body; 411-top frame; 412-bottom frame; 42-slider; 43-armature; 44-after-effect protection plate; 45-sample mounting bracket; 451-top rod; 452-bottom rod; 453-support rod; 454-sample mounting rod; 5-water tank; 6-power battery sample; 7-damper; 8-winch; 9-base; 10-spray pipe. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used to illustrate the principles of the present invention together with the embodiments of the present invention.

[0030] Example 1

[0031] This embodiment discloses a multifunctional target capsule for a light gas gun high-speed penetration power battery experiment, which is arranged opposite to the light gas gun barrel but not in contact with it. Figure 1 and Figure 2 The multifunctional target cabin includes a speed meter 1, an exhaust system 2, a fixed target cabin 3, a movable target frame 4 and a water tank 5. The fixed target cabin 3 is a square cabin body. The speed meter 1 is arranged on the side wall of the fixed target cabin 3, the exhaust system 2 is arranged on the top of the fixed target cabin 3, the movable target frame 4 and the water tank 5 are both arranged inside the cabin body of the fixed target cabin 3, the movable frame 4 is located above the water tank 5, and the power battery sample 6 is arranged on the movable target frame 4.

[0032] The side of the fixed target cabin 3 is opposite to the barrel of the light gas gun but not in contact with it, so that the bullet fired from the barrel can enter the interior of the fixed target cabin 3 through the velocimeter 1 and penetrate the power battery sample 6 at high speed. The velocimeter 1 is used to measure the impact speed of the bullet fired from the barrel on the power battery sample 6. The exhaust system 2 includes a fan and an exhaust duct, which are used to remove the exhaust gas generated by the experiment. The movable target frame 4 can move vertically inside the cabin of the fixed target cabin 3. The water tank 5 is used to soak the movable target frame 4 that moves downward to deal with emergencies such as fire and smoke that occur during the experiment.

[0033] The fixed target capsule 3 includes an upper capsule 31, a middle capsule 32 and a lower capsule 33 arranged in sequence from top to bottom. The upper capsule 31 includes a square first frame 311, four first side panels and a top panel 312. The four first side panels are respectively fixed to the four sides of the first frame 311 by bolts, so that the four first side panels seal and surround the first frame 311 from the outside. The top panel 312 is arranged on the top of the first frame 311, so that the upper capsule 31 is a square three-dimensional capsule with an open lower end. The top panel 312 is provided with a mounting hole that penetrates the plate body to install the exhaust system 2, so that the exhaust gas in the upper capsule 31 can be discharged from the fixed target capsule 3 through the exhaust system 2.

[0034] The middle cabin 32 includes a square second frame 321, a hatch 322, a second side panel 323, a third side panel, a fourth side panel and four linear guide rails 324. The upper end of the second frame 321 is connected to the first frame 311, and the lower end is connected to the lower cabin 33. The hatch 322, the second side panel 323, the third side panel and the fourth side panel are respectively arranged on the four sides of the second frame 321 body, wherein the second side panel 323 and the third side panel are respectively arranged vertically at the two ends of the hatch 322, and the second side panel 323 is opposite to the nozzle of the light gas gun barrel. The fourth side panel is opposite to the hatch 322. The hatch 322, the second side panel 323, the third side panel and the fourth side panel seal the second frame 321 on all sides. The combination of the frame and the side panel facilitates the operator to disassemble, repair and replace the target cabin. Linear guide rails 324 are vertically installed at both ends of the inner wall of the second side panel 323, and linear guide rails 324 are vertically installed at both ends of the inner wall of the third side panel. The movable target frame 4 is engaged on the linear guide rails 324, and the movable target frame 4 can be vertically moved in the fixed target cabin 3 through the linear guide rails 324.

[0035] The speedometer 1 is fixed on the second side plate 323, and a target capsule shooting hole penetrating the plate body is provided on the second side plate 323. The speedometer 1 is provided with a speedometer shooting hole penetrating the body. The light gas gun barrel, the speedometer shooting hole and the target capsule shooting hole are coaxially arranged, so that the bullet fired from the barrel can smoothly pass through the speedometer 1 and enter the cavity of the fixed target capsule 3, so that the speedometer 1 can accurately measure the impact velocity of the bullet.

[0036] Among them, the parameters of the speed meter 1 are: the speed measurement format size is 300mm×300mm; the speed measurement interval length is 100mm (the interval between two sets of opposing gratings); the speed measurement range is 0~999m / s; the speed measurement accuracy is 0.1m / s

[0037] See also Figure 2The second frame 321 includes a top frame, four first vertical rods and a bottom frame, the first vertical rods are arranged between the top frame and the bottom frame, so that the second frame 321 is a square three-dimensional frame; the top frame is provided with a control circuit, two electromagnets, a temperature sensor, a flame sensor and a smoke sensor, wherein two electromagnets are respectively arranged at both ends of the top frame to dock with the movable target frame 4, and the movable target frame 4 can be attracted and released by the electromagnets. The control circuit controls the connection of the electromagnets, the temperature sensor, the flame sensor and the smoke sensor. After penetrating the battery, if the battery catches fire or smokes, when the temperature or smoke concentration in the target cabin reaches the set value, the temperature sensor, the flame sensor or the smoke sensor is triggered, and the trigger signal is transmitted to the control circuit, and the control circuit controls the electromagnet to break the circuit, so that the target frame automatically falls into the water tank for emergency treatment.

[0038] The bottom frame includes a first support rod, a second support rod, a third support rod, a fourth support rod, a first damper support rod, a second damper support rod, a first damper mounting rod and a second damper mounting rod. The first support rod, the second support rod, the third support rod and the fourth support rod form a square two-dimensional frame. The first support rod is adjacent to the second side plate 323, the second support rod is opposite and parallel to the first support rod, the third support rod is vertically arranged between the first support rod and the second support rod, the fourth support rod is opposite and parallel to the third support rod, and the third support rod is hinged to the hatch 322; the first damper support rod and the second damper support rod are respectively vertically connected to the third support rod and the fourth support rod at both ends, so that the first damper support rod and the second damper support rod are both arranged at the two ends of the cavity of the above-mentioned two-dimensional frame, the movable target frame 4 is located between the first damper support rod and the second damper support rod but not in contact, the first damper mounting rod is vertically arranged between the first support rod and the first damper support rod, and the second damper mounting rod is vertically arranged between the second support rod and the second damper support rod.

[0039] The first damper mounting rod and the second damper mounting rod are both provided with damper mounting holes penetrating the rod bodies for mounting the damper 7 , and the telescopic head of the damper 7 faces the upper cabin body 31 .

[0040] See also Figure 3 The movable target frame 4 includes a target frame body 41 and four sliders 42. The target frame body 41 is a square three-dimensional frame. The four sliders 42 are respectively vertically installed on the outside of the four top corners of the target frame body 41 and can be docked and engaged with the linear guide rail 324. Exemplarily, the linear guide rail 324 is a convex guide rail, and a slot matching the linear guide rail 324 is provided on the slide body 43, so that a single linear guide rail 324 can be engaged with a single slider, so that the slider 42 can move vertically along the linear guide rail 324.

[0041] The movable target frame 4 further includes two armatures 43 , an aftereffect protection plate 44 and a sample mounting bracket 45 . The target frame body 41 is a three-dimensional square frame surrounded by a top frame 411, a bottom frame 412 and four second vertical rods, wherein the two ends of the four second vertical rods are respectively vertically arranged at the four right angles of the top frame 411 and the bottom frame 412, so that the top frame 411 and the bottom frame 412 are relative and parallel, so that the four sliders 42 are respectively arranged at the four right angles of the top frame 411 and are located outside the frame body, and the two armatures 43 are respectively arranged at the two ends of the top frame 411, so that a single armature 43 can be docked with a single electromagnet, so as to realize the attraction and release of the movable target frame 4 by the middle cabin 32. Because the armature 43 partially protrudes from the edge of the top frame 411, the top end of the target frame body 41 can be docked with the damper 7, so that the damper 7 can buffer and limit the speed of the target frame body 41 after release, so as to prevent the slider 42 on the target frame body 41 from detaching from the linear guide rail 324.

[0042] The sample mounting bracket 45 includes two top rods 451, two bottom rods 452, two support rods 453 and a sample mounting rod 454. The two ends of the two top rods 451 are respectively fixed at the two ends of the top frame 411, so that the two top rods 451 are arranged in parallel in the middle of the cavity of the top frame 411. The two ends of the two bottom rods 452 are respectively fixed at the two ends of the bottom frame 412, so that the two bottom rods 452 are arranged in parallel in the middle of the cavity of the bottom frame 412. Each bottom rod 452 is connected to a single top rod 454. 1 are parallel and relative to each other, the two ends of the support rod 453 are respectively perpendicularly arranged on the top rod 451 and the bottom rod 452 which are relatively located, so that the two support rods 453 are relatively located and parallel, the two ends of the sample mounting rod 454 are respectively perpendicularly arranged on the support rods 453 which are relatively located and face the direction of the bullet impact, the sample mounting rod 454 can be set to one or more, and the power battery sample is fixed on the sample mounting rod 454 by a clip or tape, so as to meet the penetration of the bullet fired from the barrel.

[0043] An after-effect protection plate support rod is installed on one end of the target frame body 41 adjacent to the third side plate, and the two ends of the after-effect protection plate support rod are respectively vertically connected to the top frame 411 and the bottom frame 412. The after-effect protection plate 44 is fixed on the after-effect protection plate support rod, and the inclined surface of the after-effect protection plate 44 is inclined toward the bottom frame 412. The after-effect protection plate 44 is used to absorb the kinetic energy after the impact of the bullet and prevent the side wall of the target cabin from being penetrated by the bullet. The after-effect protection plate support rod can be set to one or more, and the surface of the after-effect protection plate 44 facing the bullet can be set to an inclined surface, and the angle range between the inclined surface and the vertical direction is set to 15°~60°, which is beneficial to reduce the impact of the bullet on the after-effect protection plate 44 and extend the service life of the after-effect protection plate 44.

[0044] The lower cabin 33 is a square third frame 331, two fifth side panels and a sixth side panel. The third frame 331 is a square frame. The two fifth side panels and the sixth side panel are respectively arranged on both sides and the back side of the third frame 331, so that the front and bottom of the third frame 331 are open. The water tank 5 is embedded in the cavity of the lower cabin 33 through the front opening of the third frame 331. Because the middle cabin 32 and the lower cabin 33 are connected, when the electromagnet releases the movable target frame 4 through the armature 43, the movable target frame 4 falls into the water tank 5 along the linear guide rail 324, so that the power battery sample is immersed in the liquid in the water tank 5, thereby realizing emergency treatment of the burning and smoking sample. The arrangement of the fifth side panel and the sixth side panel is conducive to avoiding the large-scale leakage of toxic gases generated by the thermal runaway of the power battery sample 6, and reducing the liquid splashing caused by the falling of the movable target frame 4.

[0045] It should be noted that a multifunctional target capsule for light gas gun rapid penetration power battery experiment in an embodiment of the present application adopts a frame structure, which is not only conducive to the installation and replacement of various components, but also helps to significantly reduce the overall weight of the target capsule, realize the lightweight design of the target capsule, and reduce production costs.

[0046] Example 2

[0047] This embodiment is another implementation of the multifunctional target capsule in Embodiment 1 for light gas gun high-speed penetration of power batteries experiment.

[0048] See also Figure 4 and Figure 5 A winch 8 is installed on the top plate 312 of the upper cabin 31, and the winch of the winch 8 is equipped with a wire rope with a hook. A base 9 with a hook hole is installed on the top frame 411 of the movable target frame 4. A wire rope through hole is provided on the top plate 312, and the hook end of the wire rope passes through the wire rope through hole and the hook passes through the hook hole on the base 9, thereby realizing the connection between the winch 8 and the movable target frame 4; when the movable target frame 4 is released by the electromagnet and falls into the water tank 5 along the linear guide rail 324 for emergency treatment, the winch 8 is started to drive the wire rope through the winch to lift the movable target frame 4 immersed in the water tank 5 upward until the armature 43 on the movable target frame 4 is re-attracted by the electromagnet, thereby completing the reset of the movable target frame 4, and before the next penetration test begins, the hook on the winch 8 is pulled out from the base 9 and placed in a position where it does not affect the test.

[0049] A spray pipe 10 is arranged on the inner wall of the middle cabin 32, and a plurality of water outlets facing the power battery sample 6 are arranged on the spray pipe 10. A water pump is arranged in the water tank 5, and the water pump is connected to the control circuit on the second frame 321. The spray pipe 10 is connected to the water pump. After penetrating the battery, if the battery catches fire or smokes, when the temperature or smoke concentration in the target cabin reaches the set value, the temperature sensor, flame sensor or smoke sensor is triggered, and the trigger signal is transmitted to the control circuit. The control circuit controls the water pump to start, and the spray pipe 10 sprays water, and the sprayed water naturally falls into the water tank 5 for recovery.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A multifunctional target capsule for light gas gun high-speed penetration power battery experiment, characterized in that: The invention comprises a fixed target cabin (3), a movable target frame (4) and a water tank (5), wherein a power battery sample (6) is arranged on the movable target frame (4), wherein the fixed target cabin (3) comprises an upper cabin body (31), a middle cabin body (32) and a lower cabin body (33) which are arranged in sequence from top to bottom, wherein two electromagnets are arranged in the middle cabin body (32), and two armatures (43) are arranged on the main body of the movable target frame (4), wherein the electromagnets fix the movable target frame (4) in the middle cabin body (32) by attracting the armatures (43), and the water tank (5) is arranged in the lower cabin body (33), wherein the armatures (43) are released by the electromagnets and the movable target frame (4) falls into the water tank (5) so as to perform emergency treatment on the power battery sample (6).

2. The multifunctional target capsule according to claim 1, characterized in that: It also includes an exhaust system (2), wherein the exhaust system (2) is arranged on the top of the upper cabin (31).

3. The multifunctional target capsule according to claim 2, characterized in that: The middle cabin (32) comprises a second frame (321), a cabin door (322), a second side panel (323), a third side panel and a fourth side panel.

4. The multifunctional target capsule according to claim 3, characterized in that: The upper end of the second frame (321) is connected to the upper cabin body (31), and the lower end is connected to the lower cabin body (33); the cabin door (322), the second side panel (323), the third side panel and the fourth side panel are respectively fixed to the four side surfaces of the second frame (321).

5. The multifunctional target capsule according to claim 4, characterized in that: The second side plate (323) and the third side plate are respectively arranged at two ends of the hatch (322); the second side plate (323) is opposite to the barrel mouth of the light gas gun, and the fourth side plate is opposite to the hatch (322).

6. The multifunctional target capsule according to claim 5, characterized in that: It also includes a speed meter (1), wherein the speed meter (1) is fixedly arranged on the second side plate (323).

7. The multifunctional target capsule according to claim 6, characterized in that: The second side plate (323) is provided with a target cabin firing hole penetrating the plate body, the speed meter (1) is provided with a speed meter firing hole penetrating the body, and the light gas gun barrel, the speed meter firing hole and the target cabin firing hole are coaxially arranged.

8. The multifunctional target capsule according to claim 7, characterized in that: The movable target stand (4) further comprises a target stand body (41), and the armature (43) is arranged on the top of the target stand body (41).

9. The multifunctional target capsule according to claim 8, characterized in that: The middle cabin (32) further comprises four linear guide rails (324), two of which are arranged on the second side plate (323), and two of which are arranged on the third side plate.

10. The multifunctional target capsule according to claim 9, characterized in that: The movable target stand (4) further comprises four sliders (42), the four sliders (42) being respectively vertically mounted on the outside of four vertex corners of the target stand body (41), the sliders (42) being provided with a slot matching the linear guide rail (324), a single linear guide rail (41) being engaged with a single slider (42), and the slider (42) being able to move along the linear guide rail (324).

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