A high-voltage and high-current power battery ultimate safety test device

Abstract

The present invention relates to the technical field of power batteries, and discloses a high-voltage and high-current power battery extreme safety test device, including a bottom plate, a test assembly, a mounting plate, an electric push rod and a pressure sensor. An installation hole is provided inside the mounting plate. For this high-voltage and high-current power battery extreme safety test device, by rotating the first adjustment handwheel, the first adjustment screw rod is driven to rotate, and the first adjustment screw rod drives the adjustment block to move left and right. By rotating the second adjustment handwheel, the second adjustment screw rod is driven to rotate, and the second adjustment screw rod drives the adjustment block to move back and forth, so as to position the installation hole on the mounting plate. Then, the electric push rod is started, and the steel needle or spherical indenter is driven through the installation assembly to test the power battery on the mounting plate. When using this device to conduct comparative tests on power battery acupuncture or extrusion, there is no need to replace the power battery multiple times, shortening the test time and improving the test efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of power batteries, and particularly to a high-voltage and high-current power battery extreme safety test device. Background Art

[0002] A power battery is a power source that provides power for tools, mostly referring to a storage battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts. It is mainly different from a starting battery used for starting an automobile engine. It mostly uses a valve-regulated lead-acid battery, an open-type tubular lead-acid battery, and a lithium iron phosphate battery. A power battery is an important part of a new energy vehicle. Before the application of a power battery, it is usually necessary to conduct an extreme safety test of the power battery to evaluate the performance and the best application environment of the battery cells, modules, and battery packs of the power battery. Currently, the commonly used test methods include evaluating the extreme environments of fire and explosion through tests such as extrusion, high / low temperature, immersion, acupuncture, overcharging, and over-discharging, so as to judge the safety limit of the power battery.

[0003] When conducting an acupuncture test on a power battery, in order to simulate the situation when the battery is punctured, needles with different diameters are generally used to penetrate the battery at a certain rate or pierce half of the battery, and observe whether the battery catches fire, explodes, or leaks. However, in traditional power battery acupuncture and extrusion comparison experiments, the same power battery needs to go through multiple experiments to obtain the required experimental data. During this process, it is necessary to continuously replace the power battery on the test bench, which is not only troublesome but also very time-consuming, reducing the test efficiency. To solve the above problems, a high-voltage and high-current power battery extreme safety test device is thus proposed. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a high-voltage and high-current power battery extreme safety test device, which has the advantages of high test efficiency, etc., and solves the problem that in traditional power battery acupuncture and extrusion comparison experiments, the same power battery needs to go through multiple experiments to obtain the required experimental data. During this process, it is necessary to continuously replace the power battery on the test bench, which is not only troublesome but also very time-consuming, reducing the test efficiency.

[0006] (2) Technical Solutions

[0007] To achieve the above object of high test efficiency, the present invention provides the following technical solution: A high-voltage and large-current power battery extreme safety test device, comprising a bottom plate, a test assembly, a mounting plate, an electric push rod and a pressure sensor. An installation hole is provided inside the mounting plate. First guiding components are arranged on the left and right sides of the top of the bottom plate. The mounting plate is arranged on the top of the first guiding components. A second guiding component is arranged between the two first guiding components. A first adjusting component is arranged at the bottom of the first guiding component. A second adjusting component is arranged at the bottom of the second guiding component. An adjusting block connected to the second adjusting component is arranged outside the first adjusting component. The electric push rod is fixedly installed on the top of the adjusting block. The pressure sensor is fixedly installed at the output end of the electric push rod. An installation component is arranged on the top of the pressure sensor. The test assembly is arranged inside the installation component.

[0008] Preferably, the first guiding component includes mounting rods. Mounting rods are fixedly installed on the left and right sides of the front side of the top of the bottom plate. Fixed rods are fixedly installed on the left and right sides of the rear side of the top of the bottom plate. The mounting plate is fixedly installed on the tops of the mounting rods and the fixed rods. A first guiding rod is fixedly installed between the single-sided mounting rod and the fixed rod. A first guiding block is slidably connected to the outside of the first guiding rod.

[0009] Preferably, the second guiding component includes a second guiding rod. Second guiding rods are fixedly installed between the two mounting rods and between the two fixed rods. A second guiding block is slidably connected to the outside of the second guiding rod.

[0010] Preferably, the first adjusting component includes a mounting block. The mounting block is fixedly installed at the bottom of the first guiding block. The right side of the left mounting block is rotatably connected to a first adjusting screw rod that is rotatably connected to the right mounting block. A first adjusting handwheel is fixedly installed on the right side of the first adjusting screw rod.

[0011] Preferably, the second adjusting component includes a fixed block. The fixed block is fixedly installed at the bottom of the second guiding block. The front side of the rear fixed block is rotatably connected to a second adjusting screw rod that is rotatably connected to the front fixed block. The adjusting block is threadedly connected to the outside of the first adjusting screw rod and the second adjusting screw rod. A second adjusting handwheel is fixedly installed on the front side of the second adjusting screw rod.

[0012] Preferably, the installation component includes a limit block fixedly installed on the top of the pressure sensor. An installation groove is formed in the top of the limit block. A push plate is slidably connected to the inside of the installation groove. An installation spring is fixedly installed between the push plate and the inner bottom wall of the installation groove. Fixing grooves are formed in the top of the limit block on the left and right sides of the installation groove. A moving block is slidably connected to the inside of the fixing groove. A wedge block is fixedly installed on the top of the moving block. Limiting rods respectively extending to the left and right sides of the limit block are fixedly installed on the opposite sides of the two moving blocks. Limiting springs sleeved on the outside of the limiting rods are fixedly installed between the opposite sides of the two moving blocks and the inner walls of the fixing grooves.

[0013] Preferably, the testing component includes a connecting block located inside the installation groove and fitting with the push plate. The wedge block fits with the top of the connecting block. A steel needle or a spherical indenter is fixedly installed on the top of the connecting block.

[0014] Preferably, the model of the electric push rod is YQL888789.

[0015] Preferably, it further includes a controller, and the controller is connected to the electric push rod and the pressure sensor.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a high-voltage and large-current power battery extreme safety testing device, which has the following beneficial effects:

[0018] 1. For this high-voltage and large-current power battery extreme safety testing device, by rotating the first adjusting handwheel to drive the first adjusting screw to rotate, the first adjusting screw drives the adjusting block to move left and right. By rotating the second adjusting handwheel to drive the second adjusting screw to rotate, the second adjusting screw drives the adjusting block to move back and forth, so as to position the installation holes on the installation plate. Then start the electric push rod to drive the steel needle or the spherical indenter through the installation component to test the power battery on the installation plate. When using this device for the comparative test of acupuncture or extrusion of the power battery, there is no need to replace the power battery multiple times, which shortens the test time and improves the test efficiency.

[0019] 2. For this high-voltage and large-current power battery extreme safety testing device, by setting the installation component, when it is necessary to replace the steel needle or the spherical indenter, pull the limiting rod outwards. The limiting rod drives the wedge block to move away from the connecting block through the limit block, the limiting spring is compressed, and at the same time, under the reset action of the installation spring, the push plate is driven to move upwards, and the push plate pushes the testing component to move upwards, so as to facilitate the replacement of the steel needle or the spherical indenter and improve the test efficiency. Description of the drawings

[0020] Figure 1Schematic three-dimensional structure diagram of a high-voltage and high-current power battery extreme safety test device proposed by the present invention;

[0021] Figure 2 Schematic partial three-dimensional structure diagram of a high-voltage and high-current power battery extreme safety test device proposed by the present invention;

[0022] Figure 3 Schematic three-dimensional structure diagram of the first adjustment component and the second adjustment component of a high-voltage and high-current power battery extreme safety test device proposed by the present invention;

[0023] Figure 4 Schematic three-dimensional structure diagram of the installation component and the test component of a high-voltage and high-current power battery extreme safety test device proposed by the present invention;

[0024] Figure 5 Schematic exploded three-dimensional structure diagram of the installation component of a high-voltage and high-current power battery extreme safety test device proposed by the present invention.

[0025] In the figure: 1, bottom plate; 2, first guiding component; 21, mounting rod; 22, fixing rod; 23, first guiding rod; 24, first guiding block; 3, second guiding component; 31, second guiding rod; 32, second guiding block; 4, first adjustment component; 41, mounting block; 42, first adjustment screw; 43, first adjustment handwheel; 5, second adjustment component; 51, fixing block; 52, second adjustment screw; 53, second adjustment handwheel; 6, adjustment block; 7, installation component; 71, limiting block; 72, installation groove; 73, push plate; 74, installation spring; 75, fixing groove; 76, moving block; 77, wedge block; 78, limiting rod; 79, limiting spring; 8, test component; 81, connecting block; 82, spherical indenter; 9, mounting plate; 10, mounting hole; 11, electric push rod; 12, pressure sensor. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-5 , a high-voltage and high-current power battery extreme safety test device, including a bottom plate 1, a test component 8, a mounting plate 9, an electric push rod 11 and a pressure sensor 12. Mounting holes 10 are provided inside the mounting plate 9.

[0028] On both the left and right sides of the top of the bottom plate 1, a first guiding component 2 is provided. The mounting plate 9 is arranged on the top of the first guiding component 2. The first guiding component 2 includes a mounting rod 21. The mounting rods 21 are fixedly installed on both the left and right sides of the front side of the top of the bottom plate 1. The fixing rods 22 are fixedly installed on both the left and right sides of the rear side of the top of the bottom plate 1. The mounting plate 9 is fixedly installed on the tops of the mounting rods 21 and the fixing rods 22. A first guiding rod 23 is fixedly installed between the unilateral mounting rod 21 and the fixing rod 22. A first guiding block 24 is slidably connected to the outside of the first guiding rod 23.

[0029] A second guiding component 3 is arranged between the two first guiding components 2. The second guiding component 3 includes a second guiding rod 31. The second guiding rods 31 are fixedly installed between the two mounting rods 21 and between the two fixing rods 22. A second guiding block 32 is slidably connected to the outside of the second guiding rod 31.

[0030] A first adjusting component 4 is arranged at the bottom of the first guiding component 2. The first adjusting component 4 includes a mounting block 41. The mounting block 41 is fixedly installed at the bottom of the first guiding block 24. The right side of the left mounting block 41 is rotatably connected to a first adjusting screw 42 that is rotatably connected to the right mounting block 41. A first adjusting handwheel 43 is fixedly installed on the right side of the first adjusting screw 42.

[0031] A second adjusting component 5 is arranged at the bottom of the second guiding component 3. An adjusting block 6 connected to the second adjusting component 5 is arranged outside the first adjusting component 4. The second adjusting component 5 includes a fixing block 51. The fixing block 51 is fixedly installed at the bottom of the second guiding block 32. The front side of the rear fixing block 51 is rotatably connected to a second adjusting screw 52 that is rotatably connected to the front fixing block 51. The adjusting block 6 is threadedly connected to the outside of the first adjusting screw 42 and the second adjusting screw 52. A second adjusting handwheel 53 is fixedly installed on the front side of the second adjusting screw 52.

[0032] An electric push rod 11 is fixedly installed on the top of the adjusting block 6. The model of the electric push rod 11 is YQL888789. A pressure sensor 12 is fixedly installed at the output end of the electric push rod 11. A controller is also included. The controller is connected to the electric push rod 11 and the pressure sensor 12.

[0033] An installation component 7 is provided at the top of the pressure sensor 12. The installation component 7 includes a limit block 71 which is fixedly installed at the top of the pressure sensor 12. An installation groove 72 is formed at the top of the limit block 71. A push plate 73 is slidably connected inside the installation groove 72. An installation spring 74 is fixedly installed between the push plate 73 and the inner bottom wall of the installation groove 72. Fixing grooves 75 are formed at the top of the limit block 71 on the left and right sides of the installation groove 72. A moving block 76 is slidably connected inside the fixing groove 75. A wedge block 77 is fixedly installed at the top of the moving block 76. Limiting rods 78 respectively extending to the left and right sides of the limit block 71 are fixedly installed on the opposite sides of the two moving blocks 76. Limiting springs 79 sleeved outside the limiting rods 78 are fixedly installed between the opposite sides of the two moving blocks 76 and the inner walls of the fixing grooves 75.

[0034] A test component 8 is arranged inside the installation component 7. The test component 8 includes a connection block 81 which is located inside the installation groove 72 and is in contact with the push plate 73. The wedge block 77 is in contact with the top of the connection block 81. A steel needle or a spherical indenter 82 is fixedly installed at the top of the connection block 81.

[0035] In summary, for this high-voltage and high-current power battery extreme safety test device, by rotating the first adjustment handwheel 43 to drive the first adjustment screw 42 to rotate, the first adjustment screw 42 drives the adjustment block 6 to move left and right. By rotating the second adjustment handwheel 53 to drive the second adjustment screw 52 to rotate, the second adjustment screw 52 drives the adjustment block 6 to move back and forth, so as to position the installation holes 10 on the installation plate 9. Then, start the electric push rod 11 to drive the steel needle or the spherical indenter 82 through the installation component 7 to test the power battery on the installation plate 9. When using this device for the comparative test of power battery acupuncture or extrusion, there is no need to replace the power battery multiple times, which shortens the test time and improves the test efficiency. By setting the installation component 7, when it is necessary to replace the steel needle or the spherical indenter 82, pull the limiting rod 78 outwards. The limiting rod 78 drives the wedge block 77 to move away from the connection block 81 through the limiting block 76, and the limiting spring 79 is compressed. At the same time, under the reset action of the installation spring 74, the push plate 73 is driven to move upwards, and the push plate 73 pushes the test component 8 to move upwards, so as to facilitate the replacement of the steel needle or the spherical indenter 82 and improve the test efficiency. This solves the problem that in the traditional power battery acupuncture and extrusion comparative experiments, the same power battery needs to go through multiple experiments to obtain the required experimental data. During this process, it is necessary to continuously replace the power battery on the test bench, which is not only troublesome but also very time-consuming, reducing the test efficiency.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage and large-current power battery extreme safety testing device, comprising a bottom plate (1), a testing component (8), a mounting plate (9), an electric push rod (11) and a pressure sensor (12), wherein a mounting hole (10) is formed inside the mounting plate (9), and it is characterized in that: The first guide assembly (2) is provided on both the left and right sides of the top of the base plate (1), the mounting plate (9) is provided on the top of the first guide assembly (2), a second guide assembly (3) is provided between the two first guide assemblies (2), a first adjustment assembly (4) is provided at the bottom of the first guide assembly (2), a second adjustment assembly (5) is provided at the bottom of the second guide assembly (3), an adjustment block (6) connected to the second adjustment assembly (5) is provided outside the first adjustment assembly (4), the electric push rod (11) is fixedly installed on the top of the adjustment block (6), the pressure sensor (12) is fixedly installed at the output end of the electric push rod (11), a mounting assembly (7) is provided on the top of the pressure sensor (12), and the test assembly (8) is provided inside the mounting assembly (7); The first guide assembly (2) includes a mounting rod (21), the mounting rods (21) are fixedly mounted on both the left and right sides of the front top of the base plate (1), the fixing rods (22) are fixedly mounted on both the left and right sides of the rear top of the base plate (1), the mounting plate (9) is fixedly mounted on the top of the mounting rod (21) and the fixing rod (22), a first guide rod (23) is fixedly mounted between the mounting rod (21) and the fixing rod (22) on one side, and a first guide block (24) is slidably connected to the outside of the first guide rod (23); The second guide assembly (3) comprises a second guide rod (31), the second guide rod (31) being fixedly installed between the two mounting rods (21) and between the two fixing rods (22), and the second guide block (32) being slidably connected to the outside of the second guide rod (31); The first adjustment assembly (4) includes a mounting block (41), the mounting block (41) being fixedly mounted on the bottom of the first guide block (24), the right side of the left mounting block (41) being rotatably connected to a first adjustment screw (42) rotatably connected to the right mounting block (41), and the right side of the first adjustment screw (42) being fixedly mounted with a first adjustment hand wheel (43); The second adjustment assembly (5) includes a fixed block (51), the fixed block (51) is fixedly mounted on the bottom of the second guide block (32), the front side of the rear fixed block (51) is rotatably connected to a second adjustment screw (52) rotatably connected to the front fixed block (51), the adjustment block (6) is threadedly connected to the outside of the first adjustment screw (42) and the second adjustment screw (52), and the front side of the second adjustment screw (52) is fixedly mounted with a second adjustment hand wheel (53); The mounting assembly (7) includes a limit block (71), the limit block (71) is fixedly mounted on the top of the pressure sensor (12), a mounting groove (72) is provided on the top of the limit block (71), a push plate (73) is slidably connected to the inside of the mounting groove (72), a mounting spring (74) is fixedly mounted between the push plate (73) and the inner bottom wall of the mounting groove (72), a fixing groove (75) is provided on the top of the limit block (71) and is located on the left and right sides of the mounting groove (72), a moving block (76) is slidably connected to the inside of the fixing groove (75), a wedge block (77) is fixedly mounted on the top of the moving block (76), and limiting rods (78) extending to the left and right sides of the limit block (71) are fixedly mounted on the opposite sides of the two moving blocks (76), and limiting springs (79) sleeved on the outside of the limiting rod (78) are fixedly mounted between the opposite sides of the two moving blocks (76) and the inner wall of the fixing groove (75).

2. The high-voltage and high-current power battery extreme safety test device according to claim 1, wherein: The test assembly (8) includes a connecting block (81), the connecting block (81) is located inside the mounting groove (72) and is in contact with the push plate (73), the wedge block (77) is in contact with the top of the connecting block (81), and a steel needle or a spherical indenter (82) is fixedly mounted on the top of the connecting block (81).

3. A high-voltage and high-current power battery extreme safety test device according to claim 1, characterized in that: The model of the electric push rod (11) is YQL888789.

4. A high-voltage and high-current power battery extreme safety test device according to claim 1, characterized in that: It also includes a controller, which is connected to the electric push rod (11) and the pressure sensor (12).

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