Storage battery fixing device sliding table collision test method

Abstract

The invention relates to a sliding table collision test method for a storage battery fixing device. The sliding table collision test method comprises the following steps: material preparation: obtaining a to-be-tested material sample and a fastener; inputting a test requirement standard; building a test scene; the installation position and mode of the storage battery are determined, specifically, the storage battery is assembled on a matched bottom plate, and the bottom plate is fixed to the table top of the sliding table in a threaded connection mode or a clamp clamping mode; assembling a storage battery protection device; assembling a collision scene capturing device; setting test conditions; field cleaning confirmation: judging whether test equipment is ready or not and whether test field personnel clean the field or not before the test is implemented; exporting and analyzing test data; and judging whether the test result is qualified. The beneficial effects of the invention are that the sliding table test is carried out by building and restoring the installation scene of the storage battery in the whole vehicle, the restoration of various regulatory collision tests is realized, and whether the fixing strength of the storage battery meets the requirement can be known earlier.

Description

Technical Field

[0001] This application relates to the technical field of automobiles, and particularly to a method for testing the collision of a sliding table of a battery fixing device. Background Art

[0002] With the rapid development of the automotive industry, the safety performance of batteries has received increasing attention. The function of the battery fixing device is to ensure that the battery remains stable during operation and prevent damage caused by vibration or impact.

[0003] If the battery strap breaks or other fixing devices fail, there may be problems such as unstable battery fixation, movement inside the vehicle. Not only can the battery itself be damaged, but nearby components or circuits may also be damaged; poor contact can affect current output; there is a risk of short circuit, where the electrodes contact the metal part of the vehicle, thus triggering a short circuit, which can cause a fire in certain situations, etc.

[0004] Traditional verification methods are carried out in various types of regulatory vehicle collision tests, but this method is costly, time-consuming, and affected by various external factors, making it difficult to standardize and precisely control. Summary of the Invention

[0005] The embodiments of this application provide a method for testing the collision of a sliding table of a battery fixing device. By building a test scenario that restores the installation scenario of the battery in the whole vehicle to carry out the sliding table test, the restoration of various regulatory collision tests can be achieved, and it is possible to know earlier whether the battery fixing strength meets the requirements. This method has the advantages of low cost, simple operation, strong repeatability, accurate and reliable results, etc.

[0006] In the first aspect, the embodiments of this application provide a method for testing the collision of a sliding table of a battery fixing device, which specifically includes the following steps:

[0007] Step S1, Material Preparation: Obtain the material samples to be tested and fasteners; wherein, the material samples to be tested are battery fixing devices.

[0008] Step S2, Input of Test Requirement Standards: Based on the actual vehicle waveforms of various regulatory vehicle collision tests formulated according to the standards, select the actual vehicle waveform with the maximum impact energy through CAE simulation.

[0009] Step S3, Test Scenario Building: Build a test scenario for the battery installation state.

[0010] Step S4, Determination of Battery Installation Position and Method: Assemble the battery on a matching bottom plate, and fix the bottom plate on the sliding table surface by screwing or clamping with a fixture.

[0011] Step S5, Assemble the battery protection device.

[0012] Step S6: Assemble the collision scene capture device;

[0013] Step S7: Set the test conditions;

[0014] Step S8: Clearance confirmation: Before the test implementation, determine whether the test equipment is ready and whether the personnel on the test site have cleared the area;

[0015] Step S9: Export and analyze the test data;

[0016] Step S10: Judge whether the test result is qualified.

[0017] The sliding table collision test method for the battery fixing device proposed by the present invention conducts a sliding table test by building and restoring the installation scenario of the battery in the whole vehicle in the early stage of the project, realizes the restoration of various regulatory collision tests, can understand earlier whether the strength of the battery device meets the requirements, can quickly discover problems, and immediately study and rectify the solutions for the problem points. This method has the advantages of low cost, simple operation, strong repeatability, accurate and reliable results.

[0018] Furthermore, the sliding table collision test method for the battery fixing device proposed in the embodiment of the present invention also has the following additional technical features:

[0019] Preferably, after the step of Step S10: Judge whether the test result is qualified, it further includes:

[0020] Step S11: If the test result is unqualified, conduct special rectification on the battery fixing device according to the reasons for the unqualified;

[0021] Step S12: Take the rectified battery fixing device as the material sample to be tested; return and re - execute Step S1.

[0022] Preferably, the step of building the test scenario of the battery installation state includes:

[0023] Step S31: Lay anti - corrosion materials at the assembly position of the bottom plate and the battery;

[0024] Step S32: Assemble the battery at the reserved assembly position on the bottom plate;

[0025] Step S33: Tighten the battery.

[0026] Preferably, the step of assembling the collision scene capture device includes:

[0027] Step S71: Arrange the capture and video recording equipment according to the planned collision movement trajectory;

[0028] Step S72: Check whether the shooting range of the capture and video recording equipment covers the collision movement trajectory;

[0029] Step S73: If so, feedback the information that the assembly is completed.

[0030] Preferably, the steps of assembling the battery protection device include:

[0031] Step S51: Pass columns through the four perimeters of the bottom plate;

[0032] Step S52: Erect horizontal columns at the upper and lower ends of adjacent pairs of columns;

[0033] Step S53: Wind horizontal and vertical protective ropes along the periphery formed by the columns.

[0034] Preferably, the steps of exporting and analyzing the test data include:

[0035] Step S91: Extract the acceleration change of the sliding table at the moment of collision, and analyze the peak value and duration;

[0036] Step S92: According to the acceleration change before and after the collision, evaluate whether the impact energy meets the preset requirements;

[0037] Step S93: If the impact energy meets the standard and the degree of battery damage is qualified, determine that the test data of the sliding table this time is valid.

[0038] Preferably, the steps of judging whether the test result is qualified include:

[0039] Step S101: Obtain the positions and sizes of the deformation, cracks and liquid leakage of the battery after the sliding table collides;

[0040] Step S102: If the deformation and cracks are within the collision safety standard range and there is no liquid leakage, feedback the notice that the fixing effect of the battery fixing device is qualified, wherein the details of the damage to the battery are noted in the qualified notice;

[0041] Step S103: If any one of the above deformation, crack and liquid leakage conditions is unqualified, determine that the fixing effect of the battery fixing device is unqualified, and feedback the unqualified notice, wherein the details of the unqualified matters are noted in the unqualified notice.

[0042] The details of one or more embodiments of the present application are set forth in the following drawings and description to make the other features, objects and advantages of the present application more concise and understandable. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0044] Figure 1 Flow chart of the sliding table collision test method for the battery fixing device proposed in the embodiment of the present invention;

[0045] Figure 2 Flow chart of the method for rectifying the battery fixing device in the embodiment of the present invention;

[0046] Figure 3 Flow chart of the method for building a test scenario of the battery installation state in the embodiment of the present invention;

[0047] Figure 4 Flow chart of the method for assembling the collision scenario capture device in the embodiment of the present invention;

[0048] Figure 5 Flow chart of the method for exporting and analyzing test data in the embodiment of the present invention;

[0049] Figure 6 Flow chart of the method for determining whether the test result is qualified in the embodiment of the present invention. Detailed implementation manners

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described and explained below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0051] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application. For those of ordinary skill in the art, without making creative efforts, the present application can also be applied to other similar scenarios based on these drawings. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacturing or production changes based on the technical content disclosed in the present application are only conventional technical means and should not be understood as the content disclosed in the present application being insufficient.

[0052] Referring to "embodiment" in the present application means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments without conflict.

[0053] Unless otherwise defined, technical terms or scientific terms involved in this application shall have the ordinary meanings understood by those with ordinary skills in the technical field to which this application belongs. The words such as "a", "an", "one", "the" and the like involved in this application do not indicate a limitation in quantity and may represent a singular or plural number. The terms "comprise", "include", "have" and any variations thereof involved in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may further include unlisted steps or units, or may further include other steps or units inherent to these processes, methods, products or devices. The words such as "connect", "be connected", "couple" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships may exist. For example, "A and / or B" may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the front and rear associated objects. The terms "first", "second", "third" and the like involved in this application are only used to distinguish similar objects and do not represent a specific order for the objects.

[0054] With the rapid development of the automotive industry, the safety performance of storage batteries has received increasing attention. The function of the storage battery fixing device is to ensure that the storage battery remains stable during operation and prevent damage caused by vibration or impact.

[0055] If the storage battery hoop breaks or other fixing devices fail, there may be problems such as the storage battery being unstable, moving in the vehicle, not only damaging the storage battery itself but also possibly damaging nearby components or circuits; poor contact, affecting current output; short-circuit risk, where the electrodes contact the metal parts of the vehicle, thus triggering a short circuit, which may cause a fire in certain situations, etc.

[0056] The traditional verification method is to conduct verification in various regulatory vehicle collision tests, but this method is costly, time-consuming, and affected by various external factors, making it difficult to standardize and precisely control.

[0057] Therefore, the embodiment of the present invention proposes a sliding table collision test method for a storage battery fixing device to solve the above problems.

[0058] Please refer to Figure 1 , which is the flowchart of the sliding table collision test method for the storage battery fixing device proposed by the embodiment of the present invention. The sliding table collision test method for the storage battery fixing device of the present invention specifically includes:

[0059] Step S1, Material Preparation: Obtain the material samples to be tested and fasteners.

[0060] Among them, the material samples to be tested are battery fixing devices; it can be understood that generally, the sources of battery fixing devices and fasteners are the client who raises the demand for the sled test or the project integration engineer.

[0061] Step S2, Input of Test Requirement Standards: Based on the actual vehicle waveforms of various vehicle crash tests formulated according to the standards, select the actual vehicle waveform of the vehicle crash test with the maximum impact energy through CAE simulation.

[0062] In the embodiments of the present invention, the actual vehicle waveforms of various vehicle crash tests formulated according to the standards are various actual vehicle waveforms that comply with various regulations. It can be understood that selecting the actual vehicle waveform of the vehicle crash test with the maximum impact energy in the embodiments of the present invention is only a relatively preferred implementation manner, aiming to make the designed battery fixing device meet the most difficult test environment.

[0063] Step S3, Setup of Test Scenario: Set up the test scenario in the battery installation state.

[0064] Step S4, Determination of Battery Installation Position and Method: Assemble the battery on the matching base plate, and fix the base plate on the sled table by screwing or clamping with a fixture.

[0065] In the embodiments of the present invention, the purpose of fixing the floor on the sled table by screwing or clamping with a fixture is to facilitate quick disassembly and assembly, so as to perform multiple sled crash tests in as short a time as possible and obtain more representative test data.

[0066] Step S5, Assemble the battery protection device.

[0067] Step S6, Assemble the collision scenario capture device.

[0068] Step S7, Set the test conditions.

[0069] Step S8, Clearance Confirmation: Determine whether the test equipment is ready and whether the personnel in the test site have cleared the site before the test is implemented.

[0070] Step S9, Export and Analysis of Test Data.

[0071] Step S10, Judge whether the test result is qualified.

[0072] In summary, the method for the sliding table collision test of the battery fixing device provided by the present invention conducts a sliding table test by building and restoring the installation scenario of the battery in the whole vehicle at the early stage of the project, and realizes the restoration of various regulatory collision tests in the way of CAE simulation. Thus, it can be known earlier whether the strength of the battery device meets the requirements, quickly discover problems, and immediately study and rectify the solutions for the problem points. This method has the advantages of low cost, simple operation, strong repeatability, accurate and reliable results, etc.

[0073] In addition, please refer to Figure 2 , after step S10, there is also a method flow chart for rectifying the battery fixing device. The specific steps are as follows:

[0074] Step S11: If the test result is unqualified, conduct special rectification on the battery fixing device according to the reasons for the unqualified.

[0075] It can be understood that after the sliding table collision test, for the unqualified situation, there must be at least one structural strength that does not meet the standard, resulting in battery damage. Based on this, special reinforcement can be carried out on the damaged point area to overcome the problems that occurred in the previous test.

[0076] Step S12: Take the rectified battery fixing device as the material sample to be tested; return and re - execute step S1.

[0077] Through the method of rectifying the battery fixing device, it can quickly and effectively realize the improvement of special problems of the defective fixing device, and greatly optimize the optimization and improvement efficiency of the battery fixing device.

[0078] Furthermore, please refer to Figure 3 , which is the method flow chart for building the test scenario of the battery installation state in the embodiment of the present invention. The specific steps include:

[0079] Step S31: Lay anti - corrosion materials at the assembly position of the bottom plate and the battery.

[0080] Step S32: Assemble the battery at the reserved assembly position on the bottom plate.

[0081] Step S33: Tighten the battery.

[0082] Through this method, it can avoid the corrosion liquid from infecting the sliding table when the battery is damaged, and ensure the durability of the equipment for the sliding table collision test.

[0083] Furthermore, please refer to Figure 4 , which is the method flow chart for assembling the collision scene capture device in the embodiment of the present invention. The specific method includes:

[0084] Step S71: Arrange the capture and video recording devices according to the planned collision movement trajectory.

[0085] Step S72: Check whether the shooting range of the capture and video recording devices covers the collision movement trajectory.

[0086] Step S73: If so, feedback the information that the assembly is completed.

[0087] Through the above method, it can ensure that comprehensive and complete information can be captured in the slide table test, and the purpose of setting the feedback completion information is to enable the next-stage site clearance confirmation process to obtain the feedback of the deployed equipment, making the entire process more standardized.

[0088] Further, please refer to Figure 5 , which is the method flowchart for exporting and analyzing test data in the embodiment of the present invention. The specific steps of this method include:

[0089] Step S91: Extract the acceleration change of the slide table at the moment of collision, and analyze the peak value and duration.

[0090] Step S92: According to the acceleration change before and after the collision, evaluate whether the impact energy meets the preset requirements.

[0091] Step S93: If the impact energy meets the standard and the battery damage degree is qualified, it is determined that the test data of this slide table test is valid.

[0092] Through the above method, the impact energy is calculated by obtaining the collision acceleration change, and the impact energy is used as the requirement for measuring the collision compliance of the slide table test, making the result of the slide table collision test more rigorous.

[0093] Further, please refer to Figure 6 , which is the method flowchart for judging whether the test result is qualified in the embodiment of the present invention. The steps of this method include:

[0094] Step S101: Obtain the positions and sizes of the deformation, cracks, and liquid leakage of the storage battery after the slide table collides.

[0095] Step S102: If the deformation and cracks are within the collision safety standard range and there is no liquid leakage, feedback the notice that the fixing effect of the storage battery fixing device is qualified.

[0096] Among them, the details of the damage to the storage battery are noted in the qualified notice; by way of example and not limitation, the details of the damage matters include, but are not limited to, the deformation area, deformation size, crack area, crack size and other details.

[0097] Step S103: If any one of the above deformation, crack, and liquid leakage conditions is unqualified, it is determined that the fixing effect of the storage battery fixing device is unqualified, and an unqualified notice is feedback.

[0098] Among them, the detailed information of the unqualified items is noted in the unqualified notice. The detailed information of the items includes, but is not limited to, the deformation area, the deformation size, the crack area, the crack size, the area where liquid leakage occurs, and other item details.

[0099] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0100] The above-described embodiments merely represent several implementation manners of the present application, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A battery fixing device slide collision test method, used for performing slide test verification of the battery fixing device; characterized in that: The method comprises: Step S1, material preparation: obtaining a material sample to be tested and a fastener; wherein the material sample to be tested is a battery fixing device; Step S2, inputting the test requirements standard: selecting the vehicle waveform of the vehicle collision test with the largest impact energy based on CAE simulation according to the vehicle collision test waveforms established by the standard; Step S3, test scene construction: construct a test scene of the battery installation state; Step S4, determining the battery installation position and method: assembling the battery on a matching bottom plate, and fixing the bottom plate on the slide table by screwing or clamping; Step S5, assembling a battery protection device; Step S6, assembling a collision scene capturing device; Step S7, setting test conditions; Step S8, site clearance confirmation: before the test is implemented, determine whether the test equipment is ready and whether the test site personnel are cleared; Step S9, test data export and analysis; Step S10: Determine whether the test result is qualified.

2. The battery fixing device slide table collision test method according to claim 1, characterized in that: After the step S10, the step of judging whether the test result is qualified, the method further includes: Step S11: If the test result is unqualified, the battery fixing device is specially rectified according to the reasons causing the unqualified result; Step S12, taking the rectified battery fixture as a material sample to be tested; returning to and re-executing step S1.

3. The battery fixing device slide table collision test method according to claim 1, characterized in that: The steps of constructing a test scenario of a battery installation state include: Step S31, laying anti-corrosion material at the assembly point of the base plate and the battery; Step S32, assembling the battery at the assembly position reserved on the bottom plate; Step S33, tightening the battery.

4. The battery fixing device slide table collision test method according to claim 1, characterized in that: The steps of assembling the collision scene capturing device include: Step S71, arranging capture and video recording equipment according to the planned collision motion trajectory; Step S72, checking whether the shooting range of the snapshot and video recording equipment covers the collision motion trajectory; Step S73: If yes, feedback the assembly completion information.

5. The battery fixing device slide table collision test method according to claim 1, characterized in that: The steps of assembling the battery protection device include: Step S51, setting up pillars based on the periphery of the base plate; Step S52, erecting transverse columns at the upper and lower ends of two adjacent columns; Step S53: Wrap the horizontal and vertical protective ropes around the periphery formed by the pillars.

6. The battery fixing device slide table collision test method according to claim 1, characterized in that: The steps of exporting and analyzing the test data include: Step S91, extracting the acceleration change of the slide at the moment of collision, and analyzing the peak value and duration; Step S92: evaluating whether the impact energy reaches a preset requirement according to the acceleration change before and after the collision; Step S93: If the impact energy meets the standard and the battery damage degree is qualified, it is determined that the slide test data is valid.

7. The battery fixing device slide table collision test method according to claim 1, characterized in that: The step of judging whether the test result is qualified comprises: Step S101, obtaining the position and size of the battery deformation, cracks and leakage after the slide table collides; Step S102: If the deformation and cracks are within the collision safety standard range and there is no leakage, a notification is fed back indicating that the fixing effect of the battery fixing device is qualified, wherein the qualified notification includes a note of the details of the damage to the battery; Step S103: If any one of the above deformation, cracks and leakage conditions is unqualified, the fixing effect of the battery fixing device is determined to be unqualified, and an unqualified notice is fed back, wherein the unqualified item detailed information is noted in the unqualified notice.

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