A lightweight battery box testing method

Abstract

The present application relates to a method for testing a lightweight battery box, which includes the following steps: obtaining the test requirements of the battery box to generate a test requirements instruction; obtaining the device information of the enterprise test equipment group, and generating a target test scheme by matching based on the test requirement information and the device information through a preset test scheme model; generating a scheduling instruction according to the target test scheme, transporting the battery box to be tested to a designated test device, and sending device parameter information to the test device for parameter setting; generating a control instruction based on the target test scheme according to the test process information, and controlling the test device to test the battery box according to the test process. The present application has the effect of effectively improving the test accuracy and test efficiency of the lightweight battery box.

Description

Technical Field

[0001] The present application relates to the field of battery box testing, and particularly to a lightweight battery box testing method. Background Art

[0002] Lightweight battery boxes are often applied to various types of bicycles to provide range extension and riding assistance. The installation methods of lightweight battery boxes include down-tube battery boxes, mid-tube battery boxes, seat post battery boxes, carrier-type battery boxes, etc. The installation structure of a lightweight battery box usually includes a box body and a fastener fixed to the bicycle frame, and the two are connected through a connecting mechanism.

[0003] For existing lightweight battery boxes, since they are installed on bicycles, lightweight is one of the important goals in the design of battery boxes. The laminated structure mechanics theory of composite materials is widely applied in the design of battery boxes to optimize their structural parameters and achieve lightweight effects. Before assembling the battery cells after the production of the lightweight battery box is completed, a series of tests need to be carried out to ensure its safety and reliability under different environments and usage conditions. Due to the special structure and use of lightweight battery boxes, they are often mounted on the bicycle slant bar or seat post, and usually do not have thick protective and fixing structures. Therefore, how to efficiently and comprehensively detect lightweight battery boxes is a problem to be solved. Summary of the Invention

[0004] To solve the technical problem of how to efficiently and comprehensively detect lightweight battery boxes, the present application provides a lightweight battery box testing method.

[0005] In a first aspect, the present application provides a lightweight battery box testing method, adopting the following technical solution:

[0006] A lightweight battery box testing method includes the following steps:

[0007] Obtain the battery box testing requirements to generate a test requirement instruction, where the test requirement instruction includes one or more of appearance dimension detection requirements, conventional function test requirements, special function test requirements, airtightness test requirements, mechanical safety test requirements, and electrical safety test requirements;

[0008] Obtain the device information of the enterprise's test equipment group, and generate a target test plan by matching based on the test requirement information and the device information through a pre-set test plan model. The target test plan includes at least one test device, at least one test process information, and device parameter information;

[0009] Generate a scheduling instruction according to the target test plan, transport the battery box to be tested to the designated test device, and send the device parameter information to the test device for parameter setting;

[0010] Generate control instructions according to the target test plan based on the test process information, and control the test equipment to test the battery box according to the test process.

[0011] Preferably, the test equipment group includes an appearance detection device, an insulation test device, a functional test device, an airtightness test device, a mechanical test device, and an electrical test device; the mechanical test device includes a flame retardant test device, a water ingress test device, a vibration test device, a drop test device, a extrusion test device, a puncture test device, an impact test device, and a splash test device; the electrical test device includes an electrical insulation strength test device, a charge and discharge test device, a short circuit test device, and a thermal simulation test device.

[0012] Preferably, the splash test device includes:

[0013] A test chamber with a sealed chamber cover hinged thereto;

[0014] A test base installed in the test chamber, and a connecting member for fixing the battery box is detachably provided at the top of the test base;

[0015] Two groups of linear guide rails are fixedly arranged on the inner wall of the test chamber along the vertical direction and are arranged facing each other. Multi-axis cloud platforms are installed on the sliders of the two groups of linear guide rails; and,

[0016] Two pneumatic steel ball launchers are respectively arranged at the output ends of the two multi-axis cloud platforms.

[0017] Preferably, energy-absorbing elastic pads are attached to the inner wall of the test chamber and the bottom of the sealed chamber cover. An energy-absorbing component is arranged along the circumference of the test base in the test chamber. The energy-absorbing component includes four vertical columns, four lifting columns, two fixed energy-absorbing nets, and two lifting energy-absorbing nets. The four lifting columns are respectively located on one side of the four columns close to the inner wall of the test chamber. The four lifting columns correspond to the four columns one by one and are jointly connected to a fixing plate at the top; Adjacent two of the columns are jointly connected to the fixed energy-absorbing net, and adjacent two of the lifting columns are jointly connected to the lifting energy-absorbing net; A plurality of lifting sliding rings are arranged at both ends in the width direction of the lifting energy-absorbing net, and the plurality of lifting sliding rings are sleeved on the lifting columns. Electric pulley groups for driving the lifting energy-absorbing net to lift are installed on the four lifting columns.

[0018] Preferably, the thermal simulation test device includes:

[0019] A sealed chamber with a heat-insulating chamber cover hinged thereto;

[0020] A thermal simulation verification component installed in the sealed chamber for verifying the thermal simulation results;

[0021] An environment adjustment component installed in the sealed chamber for adjusting the environmental temperature and humidity in the sealed chamber;

[0022] A number of housing temperature sensor contacts for collecting the temperature information of the battery box housing;

[0023] A number of battery temperature sensor contacts for being inserted into the battery box to collect battery temperature information; and,

[0024] A number of box body temperature sensor contacts for being inserted into the battery box to collect the internal environment temperature information of the box body.

[0025] Preferably, an air inlet pipe and an air outlet pipe are arranged oppositely and connected to the sealed chamber for conveying a unidirectional air flow at a specified temperature into the sealed chamber.

[0026] Preferably, generating a control instruction according to the target test plan according to the test process information to control the splash test equipment to test the battery box specifically includes the following steps:

[0027] Select a connector corresponding to the battery box to be tested and install the battery box on the test base;

[0028] Generate a control instruction according to the target test plan according to the test process information, and control the linear guide rail and the multi-axis cloud platform to drive the specified pneumatic steel ball launcher to move to a specified position according to the test process and adjust the launch angle of the pneumatic steel ball launcher;

[0029] Control the electric pulley group to drive the lifting energy absorption net located opposite the specified pneumatic steel ball launcher to rise according to the control instruction;

[0030] Control the pneumatic steel ball launcher to launch the test beads at a specified initial velocity to strike the battery box on the test base for a splash test according to the control instruction.

[0031] Preferably, generating a control instruction according to the target test plan according to the test process information to control the thermal simulation test equipment to test the battery box specifically includes the following steps:

[0032] Model the battery box to generate a battery box model, and analyze the high-frequency contact area between the user and the battery box to be tested through a pre-set riding analysis model to determine the test points. The riding analysis model is a machine learning model trained based on historical riding research data;

[0033] Attach a number of housing temperature sensor contacts to the battery box to be tested according to the test points to collect the temperature information of the battery box housing, and insert a number of battery temperature sensor contacts and box body temperature sensor contacts into the battery box to collect the battery temperature information and the internal environment temperature information of the box body;

[0034] Obtain the thermal simulation data of the battery box to be tested, generate control instructions according to the test process information based on the target test plan to control the thermal simulation verification component, the environmental adjustment component, the air inlet duct and the air outlet duct to test the battery box, and verify the thermal simulation data of the battery box to be tested;

[0035] Collect the battery temperature information and the battery box shell temperature information during the test under normal test conditions, extract the battery box shell temperature when the battery temperature reaches the highest value, and determine whether it exceeds the preset contact safety threshold;

[0036] If it exceeds, generate an experience risk prompt and add it to the test report, and send it to the management personnel.

[0037] Preferably, the collection of the battery temperature information and the battery box shell temperature information during the test under normal test conditions further includes: extracting the highest value of the battery box shell temperature, verifying whether the corresponding battery temperature at this time is the highest value of the battery temperature. If not, generate an aging risk prompt and add it to the test report, and send it to the management personnel.

[0038] Preferably, the steps of obtaining the device information of the enterprise test device group and generating a target test plan by matching based on the test requirement information and the device information through a preset test plan model specifically include the following steps:

[0039] Obtain the device information of each test device in the enterprise's test device group, and the device information includes device identification information, device performance parameter information, device usage information, and device floppy drive information;

[0040] Generate test sub-plans for each requirement in the corresponding test requirement information by matching based on the test requirement information and the device information through a preset test plan model. The test sub-plans include at least one test device, test sub-process information, and device parameter information;

[0041] Classify the test sub-plans for each requirement to generate a non-destructive test set and a destructive test set;

[0042] Sort the test sub-plans in the non-destructive test set and the destructive test set based on the test sub-process information from the shortest to the longest time-consuming, and sort and integrate the test sub-plans in the non-destructive test set and the test sub-plans in the destructive test set according to the sorting results to generate a target test plan.

[0043] In summary, the present application includes at least one of the following beneficial technical effects:

[0044] 1. Establish a test plan model. According to the actual test requirements of the lightweight battery box to be tested and combined with the actual situation of the enterprise's test equipment group, a target test plan is customized and generated to control the test equipment group to conduct efficient and comprehensive inspections on the lightweight battery box, achieving the effect of effectively improving the test accuracy and test efficiency of the lightweight battery box;

[0045] 2. Through the settings of the splash test equipment, when conducting the splash test, it can control the cooperation of two groups of linear guides and a multi-axis gimbal according to the control instructions of the target test plan, and launch various specifications of pellets from various angles at specified different initial velocities to splash and strike the battery box to be tested, thereby simulating the scenario of the lightweight battery box resisting road debris splashing in the wild, and more comprehensively testing the safety performance of the battery box, achieving the effect of effectively improving the test accuracy and test efficiency of the lightweight battery box;

[0046] 3. During the thermal simulation verification process, by collecting the battery temperature and the shell temperature during the test in a normal temperature environment, the heat dissipation and heat insulation performance of the battery box can be judged, and the temperature performance of the battery box shell under the condition of the highest battery temperature can be clarified to ensure the user's riding experience and riding safety. Description of the Drawings

[0047] Figure 1 is the method flow chart of a lightweight battery box test method in an embodiment of the present application;

[0048] Figure 2 is the schematic cross-sectional view of the splash test equipment with the lifting energy-absorbing net in the raised state in an embodiment of the present application;

[0049] Figure 3 is the schematic cross-sectional view of the splash test equipment with the lifting energy-absorbing net in the lowered state in an embodiment of the present application;

[0050] Figure 4 is the schematic cross-sectional view of the splash test equipment from a top view angle in an embodiment of the present application;

[0051] Figure 5 is the method flow chart of controlling the splash test equipment to conduct a splash test on the battery box according to the target test plan in an embodiment of the present application;

[0052] Figure 6 is the system block diagram of the thermal simulation test equipment in an embodiment of the present application;

[0053] Figure 7 is the method flow chart of controlling the thermal simulation test equipment to conduct a simulation verification test on the battery box according to the target test plan in an embodiment of the present application;

[0054] Figure 8 is the method flow chart of generating the target test plan in an embodiment of the present application.

[0055] Explanation of the accompanying drawings: 1. Splash test equipment; 11. Test chamber; 111. Sealed chamber cover; 12. Test base; 121. Connector; 13. Linear guide; 14. Multi-axis pan-tilt head; 15. Pneumatic steel ball launcher; 16. Energy-absorbing elastic pad; 17. Energy-absorbing assembly; 171. Column; 172. Lifting column; 173. Fixed energy-absorbing net; 174. Lifting energy-absorbing net; 175. Fixed plate; 176. Lifting slip ring; 177. Electric pulley block; 2. Thermal simulation test equipment; 21. Sealed chamber; 211. Insulated chamber cover; 212. Air duct; 213. Air outlet duct; 22. Thermal simulation verification assembly; 23. Environmental adjustment assembly; 24. Shell temperature sensor contact; 25. Battery temperature sensor contact; 26. Box temperature sensor contact; 3. Battery box. DETAILED DESCRIPTION

[0056] The following is combined with Figures 1 - 8 This application is described in further detail.

[0057] Lightweight battery boxes are often used in various types of bicycles to provide range extension and riding assistance. Lightweight battery boxes are often mounted on the bicycle's diagonal bars or seat posts. In order to reduce weight, they often do not have a thick protective fixing structure. Therefore, lightweight battery boxes have different testing requirements compared to conventional marked battery boxes. How to conduct efficient and comprehensive testing of lightweight battery boxes is a problem to be solved.

[0058] The present application embodiment discloses a lightweight battery box testing method. Figure 1 , a lightweight battery box testing method, comprising the following steps:

[0059] S1. Generate test requirement instructions: Obtain the battery box test requirements to generate test requirement instructions, wherein the test requirement instructions include one or more of appearance dimension detection requirements, conventional function test requirements, special function test requirements, air tightness test requirements, mechanical safety test requirements, and electrical safety test requirements;

[0060] S2. Generate a target test plan: obtain the equipment information of the enterprise test equipment group, and generate a target test plan based on the test requirement information and the equipment information by matching a preset test plan model, wherein the target test plan includes at least one test device, at least one test process information, and equipment parameter information; wherein the test plan model is a machine learning model obtained by iterative training of historical data, and the specific training steps of the machine learning model are prior art and will not be described in detail here;

[0061] S3. Parameter setting: Generate a scheduling instruction according to the target test plan, transport the battery box to be tested to the designated test equipment, and send equipment parameter information to the test equipment for parameter setting;

[0062] S4. Test the battery box: Generate a control instruction based on the target test plan according to the test process information, and control the test equipment to test the battery box according to the test process. Through the above steps, establish a test plan model. According to the actual test requirements of the lightweight battery box to be tested, combined with the actual situation of the enterprise's test equipment group, customize and generate the target test plan, and control the test equipment group to conduct efficient and comprehensive detection of the lightweight battery box according to the user's test requirements, achieving the effect of effectively improving the test accuracy and test efficiency of the lightweight battery box.

[0063] The above test equipment group includes appearance detection equipment, insulation test equipment, functional test equipment, airtightness test equipment, mechanical test equipment, and electrical test equipment; the mechanical test equipment includes flame retardant test equipment, water ingress test equipment, vibration test equipment, drop test equipment, extrusion test equipment, puncture test equipment, impact test equipment, and splash test equipment; the electrical test equipment includes electrical insulation strength test equipment, charge and discharge test equipment, short circuit test equipment, and thermal simulation test equipment. Traditional battery boxes for electric bicycles are often inserted into the electric bicycle body and fixed and limited by the body armor, and the application scenarios are mostly urban roads. The lightweight battery box is often used in various types of pedal bicycles, and the most common one is mountain bicycles, and its driving scenarios are mostly off-road roads. During the riding process, there will inevitably be a phenomenon of ground gravel splashing. Due to the lightweight requirement of the lightweight battery box, there is no thick armor. Therefore, compared with the test equipment for traditional electric bicycle battery boxes, the test equipment group of this application also sets up splash test equipment, simulating the off-road gravel splashing scenario, which can more comprehensively and efficiently detect the lightweight battery box.

[0064] Refer to Figures 2 - 4, the spatter test device 1 includes a test chamber 11, a test base 12, two sets of linear guide rails 13 and two pneumatic steel ball launchers 15. Among them, a sealed chamber cover 111 is hinged to the test chamber 11. The test base 12 is installed in the test chamber 11, and a connecting member 121 for fixing the battery box 3 is detachably provided on the top of the test base 12. The two sets of linear guide rails 13 are both fixedly arranged along the vertical direction on the inner wall of the test chamber 11 and are arranged facing each other. Multi-axis cloud platforms 14 are installed on the sliders of the two sets of linear guide rails 13. The two pneumatic steel ball launchers 15 are respectively fixedly arranged at the output ends of the two multi-axis cloud platforms 14. Through the setting of the spatter test device 1, when performing the spatter test, it can control the two sets of linear guide rails 13 and the multi-axis cloud platforms 14 to cooperate with each other according to the control instructions of the target test plan, and launch various specifications of pellets from various angles at specified different initial velocities, and spatter and strike the battery box 3 to be tested, thereby simulating the scenario of the lightweight battery box 3 resisting the spatter of road gravel in the wild, and more comprehensively testing the safety performance of the battery box 3, achieving the effect of effectively improving the test accuracy and test efficiency of the lightweight battery box 3.

[0065] Refer to Figures 2 - 4 , energy-absorbing elastic pads 16 are attached to both the inner wall of the test chamber 11 and the bottom of the sealed chamber cover 111. Among them, the energy-absorbing elastic pads 16 can be made of elastic energy-absorbing materials such as sponge, rubber, resin, etc. An energy-absorbing component 17 is arranged along the circumferential direction of the test base 12 in the test chamber 11. The energy-absorbing component 17 includes four vertical columns 171, four lifting columns 172, two fixed energy-absorbing nets 173 and two lifting energy-absorbing nets 174. The four lifting columns 172 are respectively located on one side of the four columns 171 close to the inner wall of the test chamber 11. The four lifting columns 172 correspond to the four columns 171 one by one and are jointly connected with a fixing plate 175 at the top. Adjacent two columns 171 are jointly connected with the fixed energy-absorbing net 173, and adjacent two lifting columns 172 are jointly connected with the lifting energy-absorbing net 174. A plurality of lifting sliding rings 176 are arranged at both ends in the width direction of the lifting energy-absorbing net 174, and the plurality of lifting sliding rings 176 are sleeved on the lifting columns 172. Electric pulley groups 177 for driving the lifting energy-absorbing net 174 to lift are installed on the four lifting columns 172. Through the setting of the energy-absorbing component 17, after any pneumatic steel ball launcher 15 is driven to a specified position and adjusted in place by the linear guide rail 13 and the multi-axis cloud platform 14, control the electric pulley group 177 on its opposite side to drive the lifting energy-absorbing net 174 to rise, and ensure that the lifting energy-absorbing net 174 in its direction descends, and then control the pneumatic steel ball launcher 15 to launch pellets to strike the battery box 3 for spatter testing. And through the setting of the energy-absorbing elastic pads 16 and the new energy components, it can absorb energy and limit the pellets that rebound after hitting the battery box 3 during the spatter test, avoid their circular spatter and affect the test accuracy, and at the same time can also protect the opposite pneumatic steel ball launcher 15 and improve the service life of the equipment.

[0066] Reference Figure 5 , the generation of control instructions based on the target test scheme according to the test process information to control the splash test device 1 to test the battery box 3 specifically includes the following steps:

[0067] A1. Installation of the battery box 3: Select the connector 121 corresponding to the battery box 3 to be tested, and install the battery box 3 on the test base 12;

[0068] A2. Launch adjustment: Generate control instructions based on the target test scheme according to the test process information, and control the linear guide rail 13 and the multi-axis gimbal 14 to drive the specified pneumatic steel ball launcher 15 to move to the specified position according to the test process and adjust the launch angle of the pneumatic steel ball launcher 15;

[0069] A3. Raising the energy absorption net: Control the electric pulley block 177 according to the control instruction to drive the lifting energy absorption net 174 located opposite the specified pneumatic steel ball launcher 15 to rise;

[0070] A4. Splash strike: Control the pneumatic steel ball launcher 15 to launch the test beads at a specified initial velocity to strike the battery box 3 on the test base 12 according to the control instruction for splash testing. Through the above steps, according to the control instructions of the target test scheme, the two groups of linear guide rails 13 and the multi-axis gimbal 14 can be controlled to cooperate with each other to launch pellets of various specifications at different specified initial velocities from various angles and splash-strike the battery box 3 to be tested, thereby simulating the scenario of the lightweight battery box 3 resisting road gravel splashes in the wild, more comprehensively testing the safety performance of the battery box 3, and achieving the effect of effectively improving the testing accuracy and testing efficiency of the lightweight battery box 3.

[0071] Reference Figure 6, the thermal simulation test device 2 includes a sealed chamber 21, a thermal simulation verification component 22, an environmental adjustment component 23, several housing temperature sensor contacts 24 for collecting the temperature information of the battery box housing, several battery temperature sensor contacts 25 for inserting into the battery box 3 to collect battery temperature information, and several box body temperature sensor contacts 26 for inserting into the battery box 3 to collect the internal environmental temperature information of the box body. The sealed chamber 21 is hinged with a heat preservation cover 211. The thermal simulation verification component 22 is installed in the sealed chamber 21 and is used to verify the thermal simulation results. The specific structure is the prior art and will not be elaborated here. The environmental adjustment component 23 is installed in the sealed chamber 21 and is used to adjust the environmental temperature and humidity in the sealed chamber 21. The specific structure is the prior art and will not be elaborated here. Compared with the conventional battery box, the lightweight battery box 3 is easily accessible to the rider user due to its installation position, and there is a lack of thermal insulation barrier outside. Therefore, during the thermal simulation test, not only the verification experiment needs to be carried out based on the thermal simulation data generated by the previous simulation program, but also the temperature performance of the battery box 3 housing under the condition of high-intensity battery use and the highest battery temperature needs to be collected to ensure the riding experience and safety of the user.

[0072] In addition, the sealed chamber 21 is connected with an air inlet pipe 212 and an air outlet pipe 213 arranged oppositely, which are used to convey a unidirectional air flow with a specified temperature into the sealed chamber 21. Through the arrangement of the air inlet pipe 212 and the air outlet pipe 213, the wind receiving situation at different speeds of the bicycle can be simulated during the thermal simulation verification, and the heat dissipation performance of those battery boxes 3 provided with a circulating air duct heat dissipation mechanism can be exerted more fully, which helps to improve the accuracy of the test data.

[0073] Refer to Figure 7 , the above-mentioned generation of control instructions based on the target test plan according to the test process information to control the thermal simulation test device to test the battery box specifically includes the following steps:

[0074] B1. Determine the shell test points: Model the battery box 3 to generate a battery box model, and analyze the high-frequency contact areas between the user and the battery box 3 to be tested through a pre-set riding analysis model to determine the test points. The riding analysis model is a machine learning model trained based on historical riding research data;

[0075] B2. Arrange the contacts: Attach several housing temperature sensor contacts 24 to the battery box 3 to be tested according to the test points to collect the temperature information of the battery box housing, and insert several battery temperature sensor contacts 25 and box body temperature sensor contacts 26 into the battery box 3 to collect the battery temperature information and the internal environmental temperature information of the box body;

[0076] B3. Simulation verification: Obtain the thermal simulation data of the battery box 3 to be tested. Based on the target test plan, generate control instructions according to the test process information to control the thermal simulation verification component 22, the environmental adjustment component 23, the air inlet pipe 212, and the air outlet pipe 213 to test the battery box 3, and verify the thermal simulation data of the battery box 3 to be tested;

[0077] B4. Collect the battery temperature information and the battery box shell temperature information during the test under normal conditions, extract the battery box shell temperature when the battery temperature reaches the highest value, and determine whether it exceeds the preset contact safety threshold; it should be noted that the environmental temperature range for normal testing is preset by the management personnel;

[0078] B5. Generate an experience risk prompt: If it exceeds, generate an experience risk prompt and add it to the test report, and send it to the management personnel. Through the above steps, during the thermal simulation verification process, by collecting the battery temperature and the shell temperature during the test in a normal temperature environment, the heat dissipation and heat insulation performance of the battery box can be judged, and the temperature performance of the battery box shell under the condition of the highest battery temperature can be clarified to ensure the riding experience and safety of users.

[0079] Among them, the collection of the battery temperature information and the battery box 3 shell temperature information during the test under normal conditions also includes: extracting the highest value of the battery box shell temperature, verifying whether the corresponding battery temperature at this time is the highest value of the battery temperature. If not, generate an aging risk prompt and add it to the test report, and send it to the management personnel. Further ensure that the battery box 3 can bring a good user experience to users during use.

[0080] Refer to Figure 8 , obtain the device information of the enterprise test device group, and based on the test requirement information and the device information, generate a target test plan through the pre-set test plan model matching, which specifically includes the following steps:

[0081] C1. Obtain device information: Obtain the device information of each test device in the enterprise's test device group. The device information includes device identification information, device performance parameter information, device usage information, and device floppy drive information;

[0082] C2. Generate test sub-plans: Based on the test requirement information and the device information, generate test sub-plans for each requirement in the corresponding test requirement information through the pre-set test plan model matching. The test sub-plans include at least one test device, test sub-process information, and device parameter information;

[0083] C3. Plan classification: Classify the test sub-plans for each requirement to generate a non-destructive test set and a destructive test set;

[0084] C4. Integrate and generate the target test plan: Sort the test sub-plans in the non-destructive test set and the destructive test set in ascending order of time consumption based on the test sub-process information. Integrate and sort the test sub-plans in the non-destructive test set and the test sub-plans in the destructive test set according to the sorting results to generate the target test plan. By classifying and sorting the test sub-plans for each test requirement, the consumption of test consumables can be reduced, the test cost can be saved. At the same time, when there are many test items, giving priority to the test sub-plans with long time consumption can more efficiently screen out unqualified battery boxes and save test resources.

[0085] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the circumstances without creative efforts, so as to obtain different technical solutions that essentially do not depart from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. A lightweight battery box testing method, characterized in that: The following steps are involved: Obtaining the battery box test requirements to generate a test requirement instruction, wherein the test requirement instruction includes one or more of appearance dimension detection requirements, conventional function test requirements, special function test requirements, air tightness test requirements, mechanical safety test requirements, and electrical safety test requirements; Acquire equipment information of the enterprise test equipment group, and generate a target test plan based on the test requirement information and the equipment information by matching a preset test plan model, wherein the target test plan includes at least one test equipment, at least one test process information, and equipment parameter information; Generate scheduling instructions according to the target test plan, transport the battery box to be tested to the designated test equipment, and send equipment parameter information to the test equipment for parameter setting; Generate control instructions according to the test process information based on the target test plan, and control the test equipment to test the battery box according to the test process; The test equipment group includes a mechanical test equipment; the mechanical test equipment includes a splash test equipment (1); The splash test device (1) comprises: A test chamber (11) hingedly provided with a sealed chamber cover (111); A test base (12) is installed in the test chamber (11), and a connector (121) for fixing the battery box is detachably provided on the top of the test base (12); Two sets of linear guide rails (13) are fixedly arranged on the inner wall of the test chamber (11) along the vertical direction and are arranged facing each other, and multi-axis pan-tilt platforms (14) are installed on the sliders of the two sets of linear guide rails (13); and, Two pneumatic steel ball launchers (15) are respectively arranged at the output ends of the two multi-axis pan-tilt platforms (14); An energy absorbing elastic pad (16) is attached to the inner wall of the test chamber (11) and the bottom of the sealing chamber cover (111), and an energy absorbing component (17) is arranged in the test chamber (11) along the circumference of the test base (12).

2. A lightweight battery box testing method according to claim 1, characterized in that: The test equipment group also includes appearance inspection equipment, insulation test equipment, functional test equipment, air tightness test equipment, and electrical test equipment; the mechanical test equipment also includes flame retardancy test equipment, water ingress test equipment, vibration test equipment, drop test equipment, extrusion test equipment, puncture test equipment, and impact test equipment; the electrical test equipment includes electrical insulation strength test equipment, charge and discharge test equipment, short circuit test equipment, and thermal simulation test equipment (2).

3. A lightweight battery box testing method according to claim 1, characterized in that: The energy absorbing assembly (17) comprises four vertically arranged columns (171), four lifting columns (172), two fixed energy absorbing nets (173) and two lifting energy absorbing nets (174); the four lifting columns (172) are respectively located on one side of the four columns (171) close to the inner wall of the test chamber (11); the four lifting columns (172) correspond to the four columns (171) one by one and the tops are commonly connected to a fixing plate (175); two adjacent columns (171) are connected to each other; The columns (171) are connected to a fixed energy absorbing net (173), and two adjacent lifting columns (172) are connected to a lifting energy absorbing net (174); a plurality of lifting slip rings (176) are provided at both ends of the lifting energy absorbing net (174) in a width direction, and the plurality of lifting slip rings (176) are sleeved on the lifting columns (172); and an electric pulley block (177) for driving the lifting energy absorbing net (174) to move up and down is installed on the four lifting columns (172).

4. A lightweight battery box testing method according to claim 2, characterized in that: The thermal simulation test equipment (2) comprises: A sealed bin (21) is hingedly provided with a heat-insulating bin cover (211); A thermal simulation verification component (22), installed in the sealed chamber (21), is used to verify the thermal simulation results; An environmental adjustment component (23) is installed in the sealed chamber (21) and is used to adjust the environmental temperature and humidity in the sealed chamber (21); A plurality of shell temperature sensor contacts (24) for collecting battery box shell temperature information; A plurality of battery temperature sensor contacts (25) for being inserted into a battery box to collect battery temperature information; and A plurality of box body temperature sensor contacts (26) are used for being inserted into the battery box to collect the ambient temperature information inside the box body.

5. A lightweight battery box testing method according to claim 4, characterized in that: The sealed chamber (21) is connected to an air supply pipe (212) and an air outlet pipe (213) which are arranged opposite to each other and are used to supply a unidirectional airflow of a specified temperature into the sealed chamber (21).

6. A lightweight battery box testing method according to claim 3, characterized in that: The method of generating control instructions based on the target test scheme and the test process information to control the splash test device (1) to test the battery box specifically comprises the following steps: Select a connector (121) corresponding to the battery box to be tested, and install the battery box on the test base (12); Based on the target test plan, control instructions are generated according to the test process information, and the linear guide rail (13) and the multi-axis pan / tilt platform (14) are controlled to drive the designated pneumatic steel ball launcher (15) to move to the designated position according to the test process and adjust the launch angle of the pneumatic steel ball launcher (15); According to the control instruction, the electric pulley block (177) is controlled to drive the lifting energy absorption net (174) located opposite to the designated pneumatic steel ball launcher (15) to rise; According to the control instruction, the pneumatic steel ball launcher (15) is controlled to launch the test ball at a specified initial velocity to hit the battery box on the test base (12) to perform a splash test.

7. A lightweight battery box testing method according to claim 5, characterized in that: The method of generating control instructions based on the target test scheme according to the test process information and controlling the thermal simulation test device (2) to test the battery box specifically includes the following steps: Modeling the battery box to generate a battery box model, and using a preset riding analysis model to analyze the high-frequency contact area between the user and the battery box to be tested to determine the test points. The riding analysis model is a machine learning model trained based on historical riding survey data; A plurality of shell temperature sensor contacts (24) are attached to the battery box to be tested according to the test points to collect the battery box shell temperature information, and a plurality of battery temperature sensor contacts (25) and a box body temperature sensor contact (26) are inserted into the battery box to collect the battery temperature information and the box body internal environment temperature information; Obtaining thermal simulation data of the battery box to be tested, generating control instructions based on the target test plan and test process information to control the thermal simulation verification component (22), the environmental adjustment component (23), the air supply pipe (212) and the air outlet pipe (213) to test the battery box, and verifying the thermal simulation data of the battery box to be tested; Collect the battery temperature information and battery box shell temperature information during the test under normal test, extract the battery box shell temperature when the battery temperature is the highest, and determine whether it exceeds the preset contact safety threshold; If it exceeds the limit, an experience risk warning will be generated, added to the test report, and sent to the management staff.

8. A lightweight battery box testing method according to claim 7, characterized in that: The collecting of battery temperature information and battery box shell temperature information during the test under normal test also includes: extracting the maximum value of the battery box shell temperature, verifying whether the corresponding battery temperature at this time is the maximum value of the battery temperature, and if not, generating an aging risk prompt, adding it to the test report, and sending it to the management personnel.

9. A lightweight battery box testing method according to claim 1, characterized in that: The method of obtaining the device information of the enterprise test device group and generating the target test plan by matching the preset test plan model based on the test requirement information and the device information specifically includes the following steps: Obtaining device information of each test device in the enterprise's test device group, wherein the device information includes device identification information, device performance parameter information, device usage information, and device floppy drive information; Based on the test requirement information and the equipment information, a test sub-scheme corresponding to each requirement in the test requirement information is generated by matching a preset test scheme model, wherein the test sub-scheme includes at least one test equipment, test sub-process information and equipment parameter information; Classify the test sub-schemes of each requirement to generate non-destructive test sets and destructive test sets; The test sub-schemes in the non-destructive test set and the destructive test set are sorted from short to long based on the test sub-process information. According to the sorting results, the test sub-schemes in the non-destructive test set and the test sub-schemes in the destructive test set are sorted and integrated to generate a target test scheme.

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