Lithium ion battery roller testing machine

Abstract

The utility model discloses a lithium ion battery roller testing machine, which belongs to the technical field of lithium ion battery inspection equipment and comprises a roller assembly, a driving assembly is arranged on the right side of the roller assembly, a roller frame assembly is arranged below the left section of the roller assembly, and a cover plate assembly is arranged on the left end face of the roller assembly. The cover plate assembly is arranged on a cover plate supporting table, and a sliding rail is arranged below the cover plate supporting table. According to the lithium ion battery roller testing machine provided by the utility model, the modular design of the roller assemblies is adopted, so that diversified simulation of complex terrains is realized; a stepless speed regulation motor is adopted, the rotating speed of the roller can be accurately controlled, and acceleration changes caused by different gradients or road conditions are simulated; according to the cover plate assembly, the cover plate can be quickly opened, closed and locked through cooperation of the sliding rails, the flanges and the buckle plates, the clamping process is simplified, and the testing efficiency is improved; the set screws and the multiple sets of flange-buckle plate structures form multiple locking, and the locking failure risk of a traditional mechanical locking mode is avoided.

Description

A lithium-ion battery roller testing machine Technical Field

[0001] This utility model relates to the technical field of lithium-ion battery testing equipment, and in particular to a lithium-ion battery roller testing machine. Background Technology

[0002] With the rapid development of the global new energy industry, lithium-ion batteries, as the core energy carrier in electric vehicles, energy storage systems, and consumer electronics, are facing increasingly prominent safety issues. In battery transportation, use, and accidental scenarios, rolling impacts are a significant risk factor leading to battery casing damage, internal short circuits, and even thermal runaway. Rolling tests, as a key safety test simulating rolling impacts of batteries under different terrain conditions, have become a necessary step in assessing battery mechanical safety.

[0003] The design principle of existing roller testing equipment is to simulate the rolling conditions caused by the battery on an inclined road or during transportation by allowing it to roll freely inside the roller. However, with the increasing complexity of battery application scenarios (such as mountain electric vehicles and outdoor energy storage devices), higher requirements are placed on the terrain simulation accuracy, dynamic condition control capabilities, and ease of operation of the testing equipment. Traditional roller testing machines generally have many limitations: 1) Insufficient realism in terrain simulation: The inner wall of the roller is mostly made of a smooth surface, which can only simulate flat road surfaces and cannot simulate the frictional resistance and impact load characteristics of complex terrains such as concrete cracks, gravel particles, and stepped protrusions in reality, resulting in a weak correlation between the test results and actual use scenarios. 2) Lack of dynamic condition control capabilities: Relying on gravity for free rolling, the rotation speed cannot be precisely controlled, and it cannot simulate the acceleration changes caused by different slopes or the sudden changes in rotation speed caused by irregular terrain, making it difficult to assess the structural reliability of the battery under dynamic loads. 3) The latch structure adopts a bulky mechanical locking method and lacks a safety redundancy design, which not only increases the labor intensity of the testing personnel but also may cause the latch locking device to fail during operation due to rotation. Summary of the Invention

[0004] The purpose of this invention is to provide a lithium-ion battery roller testing machine. The roller assembly is modularly designed to simulate diverse complex terrains. A continuously variable motor is used to precisely control the roller speed and achieve continuous variation, simulating acceleration changes caused by different slopes or road conditions, as well as sudden speed changes due to irregular terrain. Through the cooperation of slide rails, flanges, and buckles, the opening, closing, and locking of the cover plate are quickly completed, simplifying the clamping process and improving testing efficiency. Set screws and multiple flange-buckle structures form a multi-layered locking mechanism, avoiding the risk of locking failure caused by rotation or operation in traditional mechanical locking methods.

[0005] To achieve the above objectives, this utility model provides a lithium-ion battery roller testing machine, including a roller assembly, a drive assembly on the right side of the roller assembly, a roller frame assembly below the left section of the roller assembly, a cover plate assembly on the left end face of the roller assembly, the cover plate assembly being mounted on a cover plate support platform, and a slide rail being mounted below the cover plate support platform.

[0006] Preferably, the roller assembly includes an outer roller, an inner roller is installed inside the outer roller, the inner roller has a protrusion inside, and the inner roller and the outer roller can be separated.

[0007] Preferably, the outer roller has a flange on its left outer circumference, the cover plate assembly includes a cover plate, the outer circumference of the cover plate has a buckle plate that mates with the flange, the top of the buckle plate has a set screw, and the center of the cover plate is connected to the cover plate support platform through a cover plate pivot.

[0008] Preferably, the flange and the buckle are arranged in groups, and the number of groups is not less than one.

[0009] Preferably, the drive assembly includes an electric motor, which provides power to the roller assembly through a motor output shaft. The electric motor is fixedly mounted on a motor mounting platform, which is provided with a tool shelf.

[0010] Preferably, the roller frame assembly includes a support frame for direct contact with the roller assembly, and a hydraulic cylinder is disposed below the support frame, the hydraulic cylinder being directly controlled for extension and retraction via a hydraulic cylinder foot pedal.

[0011] Preferably, a locking mechanism is provided between the cover plate support platform and the slide rail.

[0012] Therefore, this utility model adopts the above-mentioned lithium-ion battery roller testing machine. The modular design of the roller assembly enables diverse simulation of complex terrains, solving the limitation of traditional smooth rollers that can only test flat roads. The use of a stepless speed-regulating motor can accurately control the roller speed and achieve continuous variation, simulating acceleration changes caused by different slopes or road conditions, as well as sudden speed changes caused by irregular terrain. The roller frame assembly uses a hydraulic cylinder foot pedal to control the lifting and lowering of the support frame, achieving stable support and release of the roller assembly. The cover plate assembly, through the cooperation of slide rails, flanges, and buckles, can quickly complete the opening, closing, and locking of the cover plate, simplifying the clamping process and improving testing efficiency. The set screws and multiple sets of flange-buckle structure form multiple locking mechanisms, avoiding the risk of locking failure caused by rotation or operation in traditional mechanical locking methods.

[0013] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 is a structural schematic diagram of an embodiment of a lithium-ion battery roller testing machine according to the present invention;

[0015] Figure 2 is a perspective structural schematic diagram of an embodiment of a lithium-ion battery roller testing machine of the present invention;

[0016] Figure 3 is a schematic diagram of the roller assembly of an embodiment of a lithium-ion battery roller testing machine according to this utility model.

[0017] Figure Labels

[0018] 1. Slide rail; 2. Cover plate support platform; 3. Cover plate; 4. Set screw; 5. Buckle plate; 6. Flange; 7. Cover plate pivot; 8. Support frame; 9. Hydraulic cylinder; 10. Hydraulic cylinder foot pedal; 11. Roller assembly; 1101. Outer roller; 1102. Inner roller; 12. Motor output shaft; 13. Motor; 14. Motor mounting platform; 15. Tool shelf. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Example 1

[0022] This utility model provides a lithium-ion battery roller testing machine. The overall structure is shown in Figures 1-2. It includes a roller assembly 11, a drive assembly on the right side of the roller assembly 11, a roller frame assembly below the left section of the roller assembly, a cover plate assembly on the left end face of the roller assembly, the cover plate assembly on the cover plate support platform 2, a slide rail 1 below the cover plate support platform 2, and a locking mechanism between the cover plate support platform 2 and the slide rail 1.

[0023] As shown in Figure 3, the roller assembly 11 includes an outer roller 1101 and an inner roller 1102. The inner roller 1102 is installed inside the outer roller 1101. The inner roller 1102 has a large number of protrusions inside, which are used to simulate uneven road surfaces. The inner roller 1102 is embedded in the outer roller 1101 and can be separated from the outer roller 1101. The inner roller 1102 can be pulled out from inside the outer roller 1101. The inner surface of the outer roller 1101 is smooth. There can be various types of inner rollers 1102 to simulate different road conditions.

[0024] The outer roller 1101 has a flange 6 on its left outer circumference. The cover plate assembly includes a cover plate 3, and a fastening plate 5 that mates with the flange 6 is provided on the outer circumference of the cover plate 3. A set screw 4 is provided on the top of the fastening plate 5. The center of the cover plate 3 is connected to the cover plate support platform 2 through a cover plate pivot 7. The flange 6 and the fastening plate 5 are arranged in groups, and the number is not less than one group. In this embodiment, the roller testing machine has four groups of flanges 6 and fastening plates 5, which can be added or removed according to specific circumstances.

[0025] The drive assembly includes an electric motor 13, which is a stepless speed-regulating motor with continuously variable speed. The electric motor 13 provides power to the roller assembly 11 through the motor output shaft 12. The electric motor 13 is fixedly installed on the motor mounting platform 14. The motor mounting platform 14 is provided with a tool shelf 15. The tool shelf 15 can serve as a rib to increase the strength and stability of the motor mounting platform 14, and can also be used to place tools.

[0026] The roller frame assembly includes a support frame 8 for direct contact with the roller assembly 11. A hydraulic cylinder 9 is disposed below the support frame 8, and the extension and retraction of the hydraulic cylinder 9 are directly controlled by a hydraulic cylinder foot pedal 10.

[0027] When operating the roller testing machine described in this embodiment, the hydraulic cylinder 9 is raised by the hydraulic cylinder foot pedal 10, thereby providing stable support for the roller assembly 11 by the support frame 8. Then, the set screw 4 is loosened, and the cover plate 3 is rotated by hand to displace the flange 6 from the buckle plate 5. The locking mechanism between the cover plate support platform 2 and the slide rail 1 is then loosened, and the cover plate support platform 2 is moved to the left to separate the cover plate 3 from the roller assembly 11. Different inner rollers 1102 are selected according to the road condition test to be performed. If simulating a smooth road surface, the inner roller 1102 is not required. The battery is placed into the roller assembly 11, and the cover plate support platform 2 is moved to the right until the cover plate 3 is in contact with the roller assembly 11 and the cover plate support platform 2 is locked. The cover plate 3 is rotated to engage the flange 6 with the buckle plate 5, the set screw 4 is tightened, the support frame 8 is lowered, the motor 13 is started, and the speed is adjusted.

[0028] Therefore, this utility model adopts the above-mentioned lithium-ion battery roller testing machine. The modular design of the roller assembly enables diverse simulation of complex terrains, solving the limitation of traditional smooth rollers that can only test flat roads. The use of a stepless speed-regulating motor can accurately control the roller speed and achieve continuous variation, simulating acceleration changes caused by different slopes or road conditions, as well as sudden speed changes caused by irregular terrain. The roller frame assembly uses a hydraulic cylinder foot pedal to control the lifting and lowering of the support frame, achieving stable support and release of the roller assembly. The cover plate assembly, through the cooperation of slide rails, flanges, and buckles, can quickly complete the opening, closing, and locking of the cover plate, simplifying the clamping process and improving testing efficiency. The set screws and multiple sets of flange-buckle structure form multiple locking mechanisms, avoiding the risk of locking failure caused by rotation or operation in traditional mechanical locking methods.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A lithium-ion battery roller test machine characterized by: The device includes a roller assembly, a drive assembly on the right side of the roller assembly, a roller frame assembly below the left section of the roller assembly, a cover plate assembly on the left end face of the roller assembly, the cover plate assembly being mounted on a cover plate support platform, and a slide rail being mounted below the cover plate support platform.

2. A lithium-ion battery roller test machine according to claim 1, wherein: The roller assembly includes an outer roller, an inner roller is installed inside the outer roller, the inner roller has a protrusion inside, and the inner roller and the outer roller can be separated.

3. A lithium-ion battery roller testing machine according to claim 2, characterized in that: The outer roller has a flange on its left outer circle. The cover plate assembly includes a cover plate. The outer circle of the cover plate has a buckle plate that mates with the flange. The top of the buckle plate has a set screw. The center of the cover plate is connected to the cover plate support platform through a cover plate pivot.

4. A lithium-ion battery roller test machine according to claim 3, wherein: The flange and the buckle are arranged in groups, and the number of groups is not less than one.

5. A lithium-ion battery roller test machine according to claim 1, wherein: The drive assembly includes an electric motor, which provides power to the roller assembly through a motor output shaft. The electric motor is fixedly mounted on a motor mounting platform, which is provided with a tool shelf.

6. A lithium-ion battery roller testing machine according to claim 1, characterized in that: The roller frame assembly includes a support frame for direct contact with the roller assembly, and a hydraulic cylinder is disposed below the support frame. The extension and retraction of the hydraulic cylinder is directly controlled by a hydraulic cylinder foot pedal.

7. A lithium-ion battery roller test machine according to claim 1, wherein: A locking mechanism is provided between the cover plate support platform and the slide rail.

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