Energy storage and power battery drop test equipment
By combining V-shaped clamps and servo motors, the problem of poor adaptability of existing equipment is solved, enabling stable clamping and efficient testing of different batteries, thus improving testing accuracy and equipment versatility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-31
AI Technical Summary
Existing drop testing equipment is difficult to adapt to batteries of different shapes and sizes, especially large-capacity energy storage batteries, and has low testing efficiency, poor data comparability and consistency.
The clamping element, which employs a V-shaped clamping capability, increases the contact area and friction through its concave design. Combined with a servo motor and PLC controller, it achieves precise positioning and automated control, adapting to battery samples of different shapes and weights.
It achieves stable clamping of batteries of different shapes and weights, improves testing efficiency and accuracy, reduces equipment costs, and enhances the versatility and flexibility of the equipment.
Smart Images
Figure CN224066313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a testing device, specifically a drop testing device for energy storage and power batteries. Background Technology
[0002] With the rapid development of energy storage technology and the new energy vehicle industry, the safety of energy storage batteries and power batteries has received increasing attention. Among them, drop testing is one of the important means of battery reliability assessment, which can simulate the impact that batteries may be subjected to during transportation, use or accidental drops, in order to verify the mechanical strength and internal structural stability of the battery.
[0003] Currently, the drop testing equipment available on the market for energy storage batteries and power batteries is relatively limited, and mainly suffers from the following problems:
[0004] Most existing drop test equipment adopts the vertical drop method, which can only meet some of the test requirements specified in the standard. For test types such as corner drop and random drop, different test equipment or manual assistance are often required, resulting in low test efficiency, non-standardized test methods, and difficulty in ensuring the comparability and consistency of data.
[0005] Power batteries and energy storage batteries differ significantly in size and weight, especially large-capacity energy storage batteries, which can weigh hundreds of kilograms. Existing drop testing equipment is typically designed for small batteries, making it difficult to stably hold and release large batteries. Furthermore, some equipment cannot be flexibly adjusted for battery samples of different shapes and sizes, limiting its applicability. Utility Model Content
[0006] To address the aforementioned issues, this invention provides a drop test device for energy storage and power batteries. By using a clamping component with V-shaped clamping capability, the product to be tested is made concave after clamping. The angle is achieved through vertical positioning, which can better position and clamp products of various shapes, thus broadening its application range and effectively overcoming the shortcomings of existing technologies.
[0007] This utility model is achieved through the following technical solution: a drop test device for energy storage and power batteries, comprising:
[0008] A test frame, wherein a supporting base plate is provided at the bottom of the test frame;
[0009] A lifting mechanism, installed on the test frame, is used to control the drop height of the product to be tested;
[0010] A clamping mechanism, installed on the lifting mechanism, is used to clamp the product to be tested;
[0011] The clamping mechanism includes a clamping cylinder mounted on the lifting mechanism, and clamping elements are respectively provided on the opposite sides of the clamping cylinder;
[0012] Each clamping component has a hollowed-out opposite side, and each clamping component is elastically provided with two elastic clamping plates. The clamping surface of the product to be tested is located between the two elastic clamping plates, at which time a V-shaped clamping cavity is formed between the two elastic clamping plates.
[0013] As a preferred technical solution, each elastic clamping plate has a connecting ear on its inner side, and a rotating shaft is provided on the clamping member passing through the connecting ear. A torsion spring is installed on the rotating shaft, and the elastic clamping plate is kept in a horizontal state by the torsion spring.
[0014] As a preferred technical solution, each clamping member has a hollowed-out relief cavity, and the elastic clamping plates are all elastically hinged in the hollowed-out relief cavity.
[0015] As a preferred technical solution, a threaded connector is fixedly provided at the output end of the clamping cylinder, and a threaded connecting post is provided on the back of the clamping member, and the threaded connecting post is threadedly connected to the threaded connector.
[0016] As a preferred technical solution, the clamping mechanism further includes a crossbeam, and the clamping cylinder is fixedly mounted on the crossbeam by a cylinder bracket.
[0017] As a preferred technical solution, the lifting mechanism includes a servo motor, a motor screw, and a lifting plate. The servo motor is installed at the bottom of the test frame, and the output end of the servo motor is connected to the motor screw through a coupling. The lifting plate is installed on the motor screw.
[0018] As a preferred technical solution, the test frame is also provided with a longitudinal guide rail, and the lifting plate is guided and installed on the longitudinal guide rail.
[0019] As a preferred technical solution, a control mechanism is also included for controlling the lifting mechanism and the clamping mechanism. The control mechanism is equipped with a touch screen, an emergency stop button, and a power switch. The controller is a PLC controller.
[0020] The beneficial effects of this invention are as follows: This device uses a V-shaped clamping component, which allows the product to be tested to form a concave structure after clamping. Compared with the traditional planar clamping method, the V-shaped clamping component increases the contact area and friction through its concave design, making the clamping more stable and effectively preventing the sample from becoming loose or slipping during the test, thus affecting the test results.
[0021] Meanwhile, this clamping method can be adapted to battery samples of different shapes and sizes. Whether it is a regular rectangular battery, an irregularly shaped battery, or an energy storage battery or a power battery with a curved surface or a special structure, it can achieve precise fixation.
[0022] The clamping mechanism of this invention adopts a replaceable design, which can adapt to battery samples of different sizes and weights, realize the function of one device to be compatible with multiple test types, reduce equipment costs, and improve laboratory testing efficiency. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;
[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;
[0026] Figure 3 This is a schematic diagram of the clamping component of this utility model;
[0027] Figure 4 This is a cross-sectional schematic diagram of the clamping component of this utility model;
[0028] Explanation of reference numerals in the attached figures:
[0029] 2. Test frame; 10. Support base plate; 7. Clamping cylinder; 5. Clamping component; 51. First elastic clamping plate; 52. Second elastic clamping plate; 55. Connecting ear; 54. Rotating shaft; 56. Hollowed-out relief cavity; 53. Threaded connecting column; 6. Cylinder bracket; 8. Servo motor; 3. Motor lead screw; 4. Lifting plate; 9. Coupling; 1. Control mechanism. Detailed Implementation
[0030] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0031] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0032] like Figures 1-4 As shown, this utility model provides a drop test device for energy storage and power batteries. This device is used to test the mechanical safety performance of energy storage batteries and power batteries under different drop conditions. The device includes multiple parts such as a test frame 2, a lifting mechanism, a clamping mechanism, and a control mechanism 1, which work together to complete accurate drop tests.
[0033] The test frame 2 serves as the basic support structure for the equipment. A support base plate 10 is installed at its bottom to enhance the overall stability of the equipment and ensure that no vibration or tilting occurs during testing. A lifting mechanism is installed on the test frame 2. The function of the lifting mechanism is to control the drop height of the product under test to meet the drop height requirements of different testing standards.
[0034] The lifting mechanism includes a servo motor 8, a motor screw 3, and a lifting plate 4. The servo motor 8 is installed at the bottom of the test frame 2, and its output end is connected to the motor screw 3 via a coupling 9. The motor screw 3 drives the lifting plate 4 to move up and down along the test frame 2. The lifting plate 4 is equipped with a longitudinal guide rail, and the lifting plate 4 is guided and installed on the longitudinal guide rail to keep the lifting movement stable and prevent shaking or deviation, thereby ensuring that the test sample can be accurately released at the set height.
[0035] The clamping mechanism is mounted on the lifting mechanism. Its main function is to clamp the product to be tested, ensuring its stability before testing and allowing it to be released freely at a set height. The clamping mechanism includes a clamping cylinder 7 and clamping components 5. The clamping cylinder 7 is fixedly mounted on the lifting mechanism, and clamping components 5 are respectively provided on its opposite sides. Each clamping component 5 has a hollow structure on its opposite side and two elastic clamping plates are elastically arranged therein. The clamping surface of the product to be tested is located between the two elastic clamping plates, forming a V-shaped clamping cavity, thereby ensuring that the sample is uniformly clamped before falling and avoiding deviation in the falling direction or insecure clamping due to unstable clamping method.
[0036] In this embodiment, the elastic clamping plate includes a first elastic clamping plate 51 and a second elastic clamping plate 52. When the product to be tested is located between the first elastic clamping plate 51 and the second elastic clamping plate 52, the side of the two elastic clamping plates away from the product to be tested is turned outward to form a V-shaped clamping cavity for positioning the product to be tested.
[0037] To ensure clamping stability, each elastic clamping plate has a connecting lug 55 on its inner side. A rotating shaft 54 passes through the connecting lug 55 on the clamping member 5, and a torsion spring is mounted on the rotating shaft 54. The torsion spring provides elastic restoring force to keep the elastic clamping plate in a horizontal state. When the cylinder releases the clamp, the elastic clamping plate can quickly return to its original position without affecting the clamping operation of the next test.
[0038] In addition, each clamping member 5 has a hollowed-out relief cavity 56 inside, and the elastic clamping plate is elastically hinged in the hollowed-out relief cavity 56. The purpose of this structural design is to provide a certain elastic buffer, so that the clamping plate can adapt to test products of different shapes and sizes, and not cause additional pressure or deformation to the battery sample during the clamping process.
[0039] The output end of the clamping cylinder 7 is fixedly equipped with a threaded connector, and the back of the clamping member 5 is provided with a threaded connecting post 53. The threaded connecting post 53 and the threaded connector are connected by threads. This connection method facilitates the disassembly and replacement of the clamping member 5 to adapt to different types and specifications of test products, thereby improving the versatility and flexibility of the equipment.
[0040] The clamping mechanism also includes a crossbeam, and the clamping cylinder 7 is fixedly mounted on the crossbeam by the cylinder bracket 6, so that the clamping mechanism remains stable throughout the test and can withstand the weight and clamping force of the battery sample, preventing the clamp from deforming or shifting due to uneven force.
[0041] The entire equipment is controlled by control mechanism 1, which controls the movements of the lifting and clamping mechanisms. Control mechanism 1 is equipped with a touchscreen, an emergency stop button, and a power switch; the controller is a PLC controller. The touchscreen is used to set test parameters, such as drop height and number of drops, and provides real-time data monitoring. The emergency stop button can immediately stop the test in an emergency, ensuring operator safety. The PLC controller is responsible for logic control and instruction execution, ensuring that the lifting and clamping mechanisms move precisely according to the preset process, achieving automated control, avoiding human error, and improving the accuracy and repeatability of the test.
[0042] This invention relates to a drop testing device that can meet the testing needs of energy storage batteries and power batteries of different sizes, shapes, and weights, supporting multiple testing modes such as corner drops, vertical drops, and random drops. Through the V-shaped clamping cavity, the battery under test can be more stably fixed before testing. Simultaneously, the use of vertical positioning to achieve the clamping angle makes the clamping more precise and unrestricted by the battery's shape, thereby ensuring the accuracy and reliability of the drop test.
[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. An energy storage and power battery drop test apparatus, characterized in that, Include: Test rack (2), the bottom of the test rack (2) is provided with a support bottom plate (10); Lifting mechanism, installed on the test rack (2), for controlling the drop height of the product to be tested; Clamping mechanism, installed on the lifting mechanism, for clamping the product to be tested; The clamping mechanism includes a clamping cylinder (7) installed on the lifting mechanism, and the opposite sides of the clamping cylinder (7) are respectively provided with clamping pieces (5); The opposite sides of each clamping piece (5) are hollow, and each clamping piece (5) is elastically provided with two elastic clamping plates, and the clamping surface of the product to be tested is located between the two elastic clamping plates, at this time the two elastic clamping plates form a V-shaped clamping cavity.
2. The energy storage and power battery drop test apparatus of claim 1, wherein: The inner side of each elastic clamping plate is provided with a connecting lug (55), a rotating shaft (54) is provided on the clamping piece (5) penetrating the connecting lug (55), a torsion spring is installed on the rotating shaft (54), and the elastic clamping plate is kept in a horizontal state by the torsion spring.
3. The energy storage and power battery drop test apparatus of claim 2, wherein: Each clamping piece (5) has a hollow retreat cavity (56), and the elastic clamping plate is elastically hinged in the hollow retreat cavity (56).
4. The energy storage and power battery drop test apparatus of claim 3, wherein: The output end of the clamping cylinder (7) is fixedly provided with a threaded connector, and the back of the clamping piece (5) is provided with a threaded connecting column (53), and the threaded connecting column (53) is screwed with the threaded connector.
5. The energy storage and power battery drop test apparatus of claim 4, wherein: The clamping mechanism further includes a cross beam, and the clamping cylinder (7) is fixedly installed on the cross beam through a cylinder support (6).
6. The energy storage and power battery drop test apparatus of claim 1, wherein: The lifting mechanism includes a servo motor (8), a motor lead screw (3) and a lifting plate (4), the servo motor (8) is installed at the bottom of the test rack (2), the output end of the servo motor (8) is connected with the motor lead screw through a shaft coupling (9), and the lifting plate (4) is installed on the motor lead screw.
7. The energy storage and power battery drop test apparatus of claim 6, wherein: The test rack (2) is also provided with a longitudinal guide rail, and the lifting plate (4) is guidedly installed on the longitudinal guide rail.
8. The energy storage and power battery drop test apparatus of claim 1, wherein: It also includes a control mechanism (1) for controlling the lifting mechanism and the clamping mechanism, the control mechanism (1) is provided with a touch screen, an emergency stop button and a power switch, and the control mechanism is a PLC controller.