A durability testing system for automotive air conditioning panel buttons

Abstract

This invention discloses a durability testing system for automotive air conditioning panel buttons, belonging to the technical field of automotive air conditioning parts. Specifically, it includes a testing chamber with a central testing cavity running vertically through its center. Conveyor guides run through both ends of the testing cavity, and limit test fixtures are slidably mounted on the surfaces of the conveyor guides. This invention saves testing costs, avoids dust pollution, and ensures a consistent testing environment, thus improving the reliability of test results and more accurately reflecting the mechanical performance of the buttons in actual use. Compared to traditional single-stage testing, it significantly improves the accuracy and comprehensiveness of mechanical testing. It achieves a stable connection between the testing chamber and the limit test fixtures, and also constructs a sealed testing cavity, providing a stable and reliable space for subsequent precise mechanical testing and environmental simulation, avoiding errors and interference caused by loose connections during the testing process.

Description

Technical Field

[0001] This invention relates to the field of automotive air conditioning parts technology, specifically to a durability testing system for automotive air conditioning panel buttons. Background Technology

[0002] With the rapid development of the automotive industry, the requirements for the quality and reliability of automobiles are becoming increasingly stringent. As an important component of the automotive interior, the air conditioning panel buttons are used frequently, directly affecting the user experience and the overall quality of the vehicle. To ensure that the air conditioning panel buttons can work stably and reliably throughout the vehicle's entire lifespan, durability testing is required to simulate various operating conditions during actual use and to verify the performance and lifespan of the buttons.

[0003] Previous button durability tests may have used manual testing methods, which made it difficult to ensure the consistency and accuracy of the tests. The force, frequency and method of operation may vary, making it impossible to accurately simulate the operating habits of real users, resulting in deviations in test results. In addition, the tests cannot be carried out continuously for a long time, which obviously cannot meet the requirements for some situations that require a large number of cyclic tests.

[0004] In conjunction with the above, it should be noted that: For example, Chinese Patent Application No. 202121915010X discloses a durability testing device for automotive air conditioning controller buttons, which uses a crank-slider mechanism to ensure precise limitation of button pressing stroke and avoid damage to the buttons due to overload of the test bench. All mechanisms of this device meet the requirements of high and low temperature environments and can realize high and low temperature environment testing.

[0005] However, in actual use, the air conditioning panel buttons need to be used in different environments depending on the vehicle's usage environment. The mechanical pressing durability test described above does not reflect the actual situation and therefore cannot effectively detect the accurate condition of the air conditioning panel's durability. At the same time, the test results of the mechanical pressing of the air conditioning panel buttons cannot be effectively and quickly fed back, resulting in a lag in the test results. Summary of the Invention

[0006] The purpose of this invention is to provide a durability testing system for automotive air conditioning panel buttons to solve the problems mentioned above.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a durability testing system for automotive air conditioning panel buttons, comprising a testing chamber, wherein a testing cavity is provided through the center of the testing chamber, and a conveying guide is provided through both ends of the testing cavity, wherein a limit test fixture is slidably provided on the surface of the conveying guide, and a cleaning cover is provided above the conveying guide on one side of the inner wall of the testing cavity;

[0008] A circulation mechanism is provided on the bottom inner wall of the detection cavity. The circulation mechanism includes a material collection slant frame. A filter is provided on the bottom side of the material collection slant frame away from the conveying guide. Multiple sets of horizontal axis cylinders are provided inside the detection cavity near the conveying guide. A detection box is provided between the multiple sets of horizontal axis cylinders. A detection instrument facing the limit test fixture is provided inside the detection box.

[0009] The outer wall of the testing chamber is equipped with a control panel, which contains an integrated testing data acquisition module, a tactile data analysis module, a feedback data analysis module, and a monitoring marking module. The testing data acquisition module collects tactile data generated by the air conditioner panel button assembly under testing and feedback data generated by the buttons being pressed when powered on. The tactile data analysis module and the feedback data analysis module perform threshold comparison analysis on the two types of data respectively, generating mechanical signals and communication signals. The monitoring marking module determines whether the button durability is qualified based on the signal results, generates marking inkjet codes, and records the test results.

[0010] Furthermore, the top of the detection chamber is provided with an observation cover groove surrounding the detection cavity, and the inner walls at both ends of the detection cavity are provided with movable covers that are movably engaged with the conveyor guide.

[0011] Furthermore, a sliding cavity is provided through the inside of the conveying guide, and a sliding kit that engages with the limit test fixture is provided through the sliding cavity. Rotary motors that are symmetrically connected to the limit test fixture are provided at both ends of the sliding kit. A sealing frame is provided on the edge of the side surface of the limit test fixture facing the testing instrument.

[0012] Furthermore, the bottom of the cleaning hood is provided with a fixed bracket connected to the inner wall of the detection cavity. An arc-shaped telescopic jet hood is slidably sleeved inside the cleaning hood. Several sets of high-pressure nozzles are provided on the surface of the telescopic jet hood. An arc-shaped cylinder connected to the telescopic jet hood is provided inside the cleaning hood. The high-pressure nozzles are respectively facing the limit test fixture and the detection instrument. The high-pressure nozzles are connected to the booster fan through pipe fittings.

[0013] Furthermore, a vertical shaft cylinder is slidably sleeved on the inner wall of the horizontal shaft cylinder, and a movable frame is slidably sleeved on the inner wall of the vertical shaft cylinder. The movable frame is bolted to the outer wall of the detection box. Several sets of booster fans are provided on the outer wall of the end of the detection box away from the limit test fixture. Internal adjustment cylinder one is symmetrically arranged on the inner walls of both ends of the detection box. Internal adjustment cylinder two is provided on the inner wall of internal adjustment cylinder one and connected to the detection instrument. An expansion sealing groove is provided on the inner wall of the end of the detection box facing the limit test fixture.

[0014] Furthermore, the surface of the test instrument facing the limiting test fixture is provided with several sets of movable pressure blocks, and spray grooves are provided above the several sets of movable pressure blocks. A return pipe is provided on the inner wall of the bottom of the collecting inclined frame, located below the filter. The return pipe is connected to the storage tank and the pump. After the dust-laden air is extracted and filtered by the filter, the intercepted test dust is collected and transported to the storage tank through the return pipe for recycling.

[0015] Furthermore, after receiving the tactile data set, the tactile data analysis module retrieves and processes the data within the tactile data set to perform statistical analysis on the pressure and rebound force data, calculate the average force value and the force fluctuation range; it retrieves preset pressure and rebound force threshold ranges from the detection center platform and compares them with the collected and processed data. If the measured data exceeds the corresponding threshold or exhibits abnormal frequency characteristics, it generates a mechanical signal containing the type of mechanical performance abnormality and sends it to the monitoring and marking module.

[0016] Furthermore, after receiving the feedback data group, the tactile data analysis module marks and groups the data within each group, calculates the average value of the response time data and the effective trigger rate of the press trigger state data, retrieves the preset response time threshold and trigger pass rate threshold from the detection center platform, and compares and analyzes the marked and grouped data. If the response time exceeds the limit or the effective trigger rate is lower than the threshold, a communication signal containing the communication performance abnormality type is generated and sent to the monitoring marking module.

[0017] The beneficial effects of this invention are:

[0018] 1. This invention precisely controls the position of the testing box by coordinating the operation of the horizontal and vertical axis cylinders, ensuring accurate docking with the limit test fixture. This guarantees that the expansion sealing groove and the sealing frame are accurately fitted together. The expansion airbag locks the sealing frame under the action of the booster fan, achieving a stable connection between the testing box and the limit test fixture. It also constructs a sealed testing cavity, providing a stable and reliable space for subsequent accurate mechanical testing and environmental simulation, avoiding errors and interference caused by loose connections during the testing process.

[0019] 2. This invention uses two internal adjustment cylinders to precisely adjust the position of the testing instrument, ensuring that the movable pressure block is accurately matched with the buttons on the air conditioning panel button assembly. The fine-tuning cylinder drives the movable pressure block to extend, simulating button operations of different forces and frequencies, and more realistically reflecting the mechanical performance of the buttons in actual use. Compared with the traditional single testing process, this invention greatly improves the accuracy and comprehensiveness of mechanical testing.

[0020] 3. This invention achieves efficient cleaning of dust from the test box, limit test fixture, and air conditioning panel button assembly surface after testing through the cooperation of mechanical structures such as the cleaning frame, telescopic jet hood, high-pressure nozzle, and rotary motor. The filter, return pipe, and pump in the circulation mechanism filter and recycle the dust in the test cavity and transport it back to the storage tank for reuse. This saves testing costs, avoids dust pollution to the environment, and ensures the consistency of the testing environment, which helps to improve the reliability of test results. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the conveyor guide frame of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the limit test fixture of the present invention;

[0025] Figure 4 This is a schematic diagram of the cleaning cover frame of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the detection chamber of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the horizontal shaft cylinder of the present invention;

[0028] Figure 7 This is a schematic diagram of the detector device of the present invention.

[0029] Reference numerals: 1. Detection chamber; 101. Detection cavity; 102. Observation hood slot; 103. Moving cover; 2. Cleaning hood frame; 201. Telescopic air hood; 202. High-pressure nozzle; 3. Circulation mechanism; 301. Material collection slant frame; 302. Filter; 303. Return material pipe fitting; 4. Conveying guide frame; 401. Sliding kit; 402. Limit test fixture; 403. Sealing frame; 404. Rotary motor; 5. Horizontal axis cylinder; 501. Vertical axis cylinder; 502. Moving frame; 503. Detection box; 504. Booster fan; 505. Expansion sealing groove; 506. Internal adjustment cylinder one; 507. Internal adjustment cylinder two; 6. Detection instrument; 601. Movable pressure block; 602. Spray groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1 - Figure 7 As shown, this embodiment is a durability testing system for automotive air conditioning panel buttons, including a testing box 1. A testing cavity 101 is provided through the center of the testing box 1 from top to bottom. A conveying guide 4 is provided through both ends of the testing cavity 101. A limit test fixture 402 is slidably provided on the surface of the conveying guide 4. A cleaning cover 2 is provided above the conveying guide 4 on the inner wall of one side of the testing cavity 101.

[0032] The air conditioning panel button assembly awaiting testing is snapped onto the limit test fixture 402. The relevant plugs on the air conditioning panel button assembly are connected to the corresponding sockets on the limit test fixture 402. The assembly is then transported smoothly into the testing cavity 101 using the conveyor guide 4.

[0033] The top of the testing chamber 1 is provided with an observation cover groove 102 surrounding the testing cavity 101. The inner walls at both ends of the testing cavity 101 are provided with movable covers 103 that are movably engaged with the conveying guide 4. The top of the observation cover groove 102 is provided with a detachable transparent cover. The inner walls at both ends of the testing chamber 1 are embedded with a storage tank, a pump, a hot air blower, a compressor, and a propulsion cylinder. The propulsion cylinder is sleeved with the bottom of the movable cover 103. The storage tank is provided with test dust. The storage tank is connected to the spray tank 602 through the pump and pipes to guide the test dust to be sprayed onto the air conditioning panel to be tested. The hot air blower and compressor are used to generate high-temperature and low-temperature hot air, which are connected to the spray tank 602 through pipes.

[0034] During the testing process, the hot air blower and compressor are gradually activated according to the simulation requirements of the testing environment. Hot air and cold air are guided into the sealed testing chamber through pipes to simulate the hot and cold environment of the air conditioning panel button assembly. Then, the storage tank extracts some test dust through a pump and guides it into the spray tank 602 through pipes. The spray tank 602 guides the test dust to be sprayed onto the surface of the air conditioning panel button assembly. Part of the booster fan 504, which is connected to the internal circulation of the testing box 503, is activated. This part of the booster fan 504 extracts air containing test dust from the sealed testing chamber, filters it through the filter set on the inner wall of the testing box 503, and compresses the extracted air and guides it into the spray tank 602. This causes the airflow inside the sealed testing chamber to accelerate, thereby carrying the test dust and eroding the air conditioning panel button assembly. This is used to quickly simulate the usage conditions of the air conditioning panel button assembly under harsh vehicle conditions with impurities accumulating.

[0035] Then, in conjunction with the testing instrument 6, a pressing durability test is performed on it to test the durability and lifespan of the air conditioning panel button assembly after simulating long-term use in a real vehicle interior and under different environmental conditions. It should be noted that: the bottom of the test box 503 is equipped with an electric gate valve near the filter and facing the material collection bracket 301, which is used to adjust the opening according to the testing needs, so as to realize the centralized exhaust of the air containing test dust inside the sealed test chamber. The booster fan 504 continuously circulates the air inside the sealed test chamber, so as to clean the test dust on the surface of the air conditioning panel button assembly after the test.

[0036] A sliding cavity is provided inside the conveyor guide 4. A sliding kit 401 is provided in the conveyor guide 4 through the sliding cavity and engages with the limit test fixture 402. Rotary motors 404 that are symmetrically connected to the limit test fixture 402 are provided at both ends of the sliding kit 401. A sealing frame 403 is provided on the edge of the side surface of the limit test fixture 402 facing the test instrument 6.

[0037] During testing, the transparent cover is connected to the observation cover slot 102 to facilitate observation of the test situation. The cylinder drives the moving cover 103 to seal the inlet and outlet at both ends of the test cavity 101 to prevent test dust from escaping.

[0038] The bottom of the cleaning cover 2 is provided with a fixed bracket connected to the inner wall of the detection cavity 101. The inside of the cleaning cover 2 is a telescopic jet cover 201 with an arc structure. The surface of the telescopic jet cover 201 is provided with several sets of high-pressure nozzles 202. The inside of the cleaning cover 2 is provided with an arc cylinder connected to the telescopic jet cover 201. The high-pressure nozzles 202 are respectively facing the limit test fixture 402 and the detection instrument 6. The high-pressure nozzles 202 are connected to the booster fan 504 through pipe fittings.

[0039] After the test box and the limit test fixture 402 are separated by a certain distance, the arc-shaped cylinder drives the telescopic jet cover 201 to unfold. The telescopic jet cover 201 extends along the arc trajectory and approaches the area between the test box 503 and the limit test fixture 402. Part of the booster fan 504 guides air pressure into the high-pressure nozzle 202 through the pipe fitting. The high-pressure nozzle 202 guides the airflow to wash the surface of the test box 503 and the limit test fixture 402, so as to clean the test dust accumulated on their surface.

[0040] During the cleaning of the high-pressure nozzle 202, the rotary motor 404 drives the limit test fixture 402 to rotate along the surface of the sliding kit 401, causing the limit test fixture 402 to rotate and move the air conditioning panel button assembly, changing the orientation of the air conditioning panel button assembly. Combined with its own weight and the airflow inside the detection cavity 101 in this state, the cleaning of test dust on the surface of the air conditioning panel button assembly is accelerated. It should be noted that the circulation mechanism 3 starts synchronously.

[0041] Example 2: Please refer to Figure 1 - Figure 7 As shown, this embodiment is a durability testing system for automotive air conditioning panel buttons. It includes a circulation mechanism 3 installed on the inner wall of the bottom of the testing cavity 101. The circulation mechanism 3 includes a material collection inclined frame 301. A filter 302 is installed on the bottom side of the material collection inclined frame 301 away from the conveying guide 4. Multiple sets of horizontal axis cylinders 5 are installed inside the testing cavity 101 near the conveying guide 4. A testing box 503 is installed between the multiple sets of horizontal axis cylinders 5. A testing instrument 6 facing the limiting test fixture 402 is installed inside the testing box 503.

[0042] A vertical axis cylinder 501 is slidably sleeved on the inner wall of the horizontal axis cylinder 5. A movable frame 502 is slidably sleeved on the inner wall of the vertical axis cylinder 501. The movable frame 502 is bolted to the outer wall of the test box 503. Several sets of booster fans 504 are provided on the outer wall of the end of the test box 503 away from the limit test fixture 402. Internal adjustment cylinders 506 are symmetrically arranged on the inner walls of both ends of the test box 503. Internal adjustment cylinder 507 connected to the test instrument 6 is provided on the inner wall of internal adjustment cylinder 506. An expansion sealing groove 505 is provided on the inner wall of the end of the test box 503 facing the limit test fixture 402.

[0043] The expansion sealing groove 505 is connected to the booster fan 504 through a pipe fitting, which facilitates the use of the expansion airbag in the expansion sealing groove 505 to inflate and clamp the sealing frame 403 during the connection between the test box 503 and the limit test fixture 402, thereby creating a sealed test cavity between the test box 503 and the limit test fixture 402. This facilitates the simulation of a real environment for the durability test of the air conditioner panel buttons under dust and hot and cold conditions.

[0044] The horizontal axis cylinder 5 drives the vertical axis cylinder 501 to move axially. The vertical axis cylinder 501 drives the test box to move horizontally closer to the limit test fixture 402. During this period, the vertical axis cylinder 501 adjusts the vertical height of the test box to ensure that after the test box approaches the limit test fixture 402, the expansion sealing groove 505 and the sealing frame 403 are correctly fitted. After the two are fitted, one set of booster fans 504 provides air pressure to the expansion airbag through the pipeline. After the expansion airbag inflates, it clamps and locks the sealing frame 403. With the test box driven by the horizontal axis cylinder 5 and the vertical axis cylinder 501, the test box and the limit test fixture 402 are connected and a sealed test cavity is constructed between them.

[0045] Internal adjustment cylinder 506 drives internal adjustment cylinder 507 to move laterally to limit the test fixture 402. Internal adjustment cylinder 507 drives the test fixture 6 to adjust up and down horizontally, so that several sets of movable pressure blocks 601 on the surface of the test fixture 6 match the button positions on the air conditioning panel button assembly. The test fixture 6 is equipped with a fine adjustment cylinder connected to the movable pressure block 601. The fine adjustment cylinder drives the movable pressure block 601 to extend. The movable pressure block 601 extends and contacts the buttons on the surface of the air conditioning panel button assembly, so as to realize the mechanical test of the buttons on the surface of the air conditioning panel button assembly.

[0046] The testing instrument 6 has several sets of movable pressure blocks 601 on one end surface facing the limiting test fixture 402. A spray groove 602 is provided above the several sets of movable pressure blocks 601. A return pipe 303 located below the filter 302 is provided on the inner wall of the bottom of the collecting inclined frame 301. The return pipe 303 is connected to the storage tank and the pump. After the dust-laden air is extracted and filtered by the filter 302, the intercepted test dust is collected and transported to the storage tank through the return pipe 303 for recycling.

[0047] The circulation mechanism 3 filters the air in the detection chamber 101 through the filter 302. The filter 302 is connected to part of the booster fan 504 through the pipeline, causing the test dust intercepted by the filter 302 to fall off and accumulate on the surface of the return pipe 303. The return pipe 303 is pumped out by the pump at regular intervals, and the accumulated test dust is transported to the storage tank. The pump can be equipped with spare fans and other components on the side. The specific components can be added and set according to actual needs, and are not limited to this.

[0048] Example 3: This example is a durability testing system for automotive air conditioning panel buttons. It includes a control panel installed on the outer wall of the test chamber 1. The control panel is equipped with an integrated test data acquisition module, a touch data analysis module, a feedback data analysis module, and a monitoring mark module. When the durability testing system is started, the control panel generates a monitoring command, which is sent to the test data acquisition module. After receiving the monitoring command, the test data acquisition module collects and processes the relevant data.

[0049] The detection data acquisition module is used to collect tactile data generated by the air conditioner panel button assembly under detection. The tactile data is collected by the pressure sensor installed in the movable pressure block 601 to measure the pressing force. and rebound strength The sound signal of the press is collected by a microphone array installed on the inner wall of the detection box 503. ;

[0050] After receiving the haptic data set, the haptic data analysis module retrieves and processes the data within the haptic data set to analyze the pressure applied. Rebound strength For statistical analysis of the data, it should be noted that: i is a natural number greater than zero, such as... , , ..., , Similarly;

[0051] The haptic data analysis module calculates the average pressure applied from n key presses, where n is a natural number greater than zero. If n=10, then the pressure applied from 10 key presses is collected. and rebound strength The data, it should be noted, refers to data collected from n collections. Different data exist, such as: =3N, =5N:

[0052]

[0053] in, This represents the average pressing force, calculated by averaging pressing force data obtained from multiple pressing tests. It is used to evaluate the overall pressing force of the button.

[0054] This represents the total number of press tests; in this embodiment, n=10.

[0055] This represents the pressure data collected during the i-th press test;

[0056] The compression threshold and average compression force are retrieved from the control panel and compared. The compression threshold can be set to a value of [value missing]. - :

[0057] like < < If the pressure is within the threshold range, the pressure is temporarily determined to be normal.

[0058] like ,or < If the pressing force is outside the threshold range, it is temporarily determined that the pressing force is abnormal, a mechanical signal is generated, and the mechanical signal is sent to the monitoring and marking module. After receiving the mechanical signal, the monitoring and marking module generates a waiting verification instruction and controls the marking device connected to the external end of the durability test system to mark the group of air conditioner panel button assemblies with inkjet printing. At the same time, it collects data from the next group of air conditioner panel button assemblies and compares the results of its analysis with the results of the analysis of the current group of air conditioner panel button assemblies.

[0059] If the analysis result error is within the preset detection index, it indicates that the durability testing system has not experienced any mechanical abnormalities. An abnormality archive of the detection target is generated, and its inkjet printing information is sent to an external marking device for inkjet printing marking of the previous group and the air conditioning panel button assemblies that all have the same problem, so that subsequent personnel can quickly identify and sort them.

[0060] The detection data acquisition module generates feedback data sets when the button is pressed to activate it. The response time is collected by the electrical signal monitoring circuit inside the limit test fixture 402. and trigger state If m=10 electrical signal detections are used to collect response time and trigger status data;

[0061] The feedback data analysis module calculates the average response time for m electrical signal data:

[0062]

[0063] Effective trigger rate:

[0064]

[0065] in, The average response time is a value calculated by averaging the response time data obtained from multiple electrical signal detections. It is used to evaluate the average speed of key response.

[0066] Indicates the total number of electrical signal detections

[0067] This represents the response time data acquired during the j-th electrical signal detection.

[0068] This indicates the effective trigger rate, reflecting the proportion of buttons that are successfully triggered in multiple press tests.

[0069] This indicates the trigger state of the button during the j-th electrical signal detection; 1 indicates triggering, and 0 indicates no triggering.

[0070] Retrieve the trigger pass rate threshold from within the control panel. The trigger pass rate threshold is set to 97% and the effective trigger rate. Comparison processing;

[0071] If effective trigger rate If the trigger pass rate threshold is less than 97%, the trigger pass rate is deemed insufficient, and a communication signal is generated and sent to the regulatory marking module.

[0072] The monitoring marking module adjusts according to the communication signal. If the trigger pass rate of the received communication signal is insufficient, it generates a spray code such as "C-02" and sends the test result to the control panel in the text display "Button number: A001, trigger pass rate insufficient, test time: 20xx.xx.xx". The control panel simultaneously starts the flashing light and voice broadcast.

[0073] After receiving the feedback data group, the tactile data analysis module marks and groups the data within each group. It calculates the average value of the response time data and the effective trigger rate of the press trigger state data. It retrieves the preset response time threshold and trigger pass rate threshold from the detection center platform and compares and analyzes them with the marked and grouped data. If the response time exceeds the limit or the effective trigger rate is lower than the threshold, it generates a communication signal containing the communication performance abnormality type and sends it to the monitoring marking module.

[0074] By combining the detection data acquisition module, tactile data analysis module, feedback data analysis module, and monitoring marking module in the system, various data of the buttons during the testing process can be collected, analyzed, and processed in real time. By comparing and analyzing the data with preset thresholds, the system can promptly determine whether the buttons are qualified and generate corresponding marking codes and text information, which greatly improves the accuracy and timeliness of the test results and facilitates effective monitoring and management of product quality.

[0075] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0076] Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Related accessories include, but are not limited to, commonly used mechanical connection components in this field such as couplings, lead screws, gears, and gaskets. The specific replacement and use of the appropriate connection method will be based on actual use. Pressure sensor model: FSR402; Microphone array model: MP34DT05.

Claims

1. A durability testing system for automotive air conditioning panel buttons, comprising a testing housing (1), characterized in that, The detection chamber (1) has a detection cavity (101) running vertically through the center. The detection cavity (101) has a conveying guide (4) running through both ends. The surface of the conveying guide (4) is slidably provided with a limit test fixture (402). A cleaning cover (2) is provided above the conveying guide (4) on the inner wall of one side of the detection cavity (101). A circulation mechanism (3) is provided on the bottom inner wall of the detection cavity (101). The circulation mechanism (3) includes a material collection slant frame (301). A filter (302) is provided on the bottom side of the material collection slant frame (301) away from the conveying guide frame (4). Multiple sets of horizontal axis cylinders (5) are provided inside the detection cavity (101) near the conveying guide frame (4). A detection box (503) is provided between the multiple sets of horizontal axis cylinders (5). A detection instrument (6) facing the limit test fixture (402) is provided inside the detection box (503). The outer wall of the testing box (1) is provided with a control panel. The control panel is equipped with an integrated testing data acquisition module, a tactile data analysis module, a feedback data analysis module and a monitoring mark module. The testing data acquisition module is used to collect the tactile data group generated by the air conditioner panel button assembly being tested and the feedback data group generated by the button being pressed when powered on. The tactile data analysis module and the feedback data analysis module respectively perform threshold comparison analysis on the two types of data to generate mechanical signals and communication signals. The monitoring mark module determines whether the button durability is qualified according to the signal results, generates a mark inkjet and records the test results. The bottom of the cleaning cover (2) is provided with a fixed bracket connected to the inner wall of the detection cavity (101). The cleaning cover (2) is slidably fitted with an arc-shaped telescopic jet cover (201). The surface of the telescopic jet cover (201) is provided with several sets of high-pressure nozzles (202). The cleaning cover (2) is provided with an arc-shaped cylinder connected to the telescopic jet cover (201). A vertical shaft cylinder (501) is slidably sleeved on the inner wall of the horizontal shaft cylinder (5), and a movable frame (502) is slidably sleeved on the inner wall of the vertical shaft cylinder (501). The movable frame (502) is bolted to the outer wall of the test box (503). Several sets of booster fans (504) are provided on the outer wall of the end of the test box (503) away from the limit test fixture (402). An internal adjustment cylinder (506) is symmetrically arranged on the inner walls of both ends of the test box (503). An internal adjustment cylinder (507) connected to the test instrument (6) is provided on the inner wall of the internal adjustment cylinder (506). An expansion sealing groove (505) is provided on the inner wall of the end of the test box (503) facing the limit test fixture (402). The testing instrument (6) has a number of movable pressure blocks (601) on one end surface facing the limit test fixture (402), and a spray groove (602) is provided above the number of movable pressure blocks (601). A return pipe (303) located below the filter (302) is provided on the inner wall of the bottom of the collecting inclined frame (301).

2. The automotive air conditioning panel button durability testing system according to claim 1, characterized in that, The top of the detection chamber (1) is provided with an observation cover groove (102) surrounding the detection cavity (101), and the inner walls at both ends of the detection cavity (101) are provided with movable covers (103) that are engaged with the conveying guide (4).

3. The automotive air conditioning panel button durability testing system according to claim 1, characterized in that, The conveying guide (4) has a sliding cavity running through it. The conveying guide (4) has a sliding kit (401) that engages with the limit test fixture (402) through the sliding cavity. The sliding kit (401) has a rotary motor (404) that is symmetrically connected to the limit test fixture (402) at both ends. The limit test fixture (402) has a sealing frame (403) on the edge of its surface facing the test instrument (6).

4. The automotive air conditioning panel button durability testing system according to claim 1, characterized in that, After receiving the tactile data set, the tactile data analysis module retrieves and processes the data within the tactile data set to perform statistical analysis on the pressure and rebound force data, calculate the average force value and the force fluctuation range; it retrieves preset pressure and rebound force threshold ranges from the testing center platform and compares them with the collected and processed data. If the measured data exceeds the corresponding threshold or exhibits abnormal frequency characteristics, it generates a mechanical signal containing the type of mechanical performance abnormality and sends it to the monitoring and marking module.

5. The automotive air conditioning panel button durability testing system according to claim 4, characterized in that, After receiving the feedback data group, the tactile data analysis module marks and groups the data within each group, calculates the average value of the response time data and the effective trigger rate of the press trigger state data, retrieves the preset response time threshold and trigger pass rate threshold from the detection center platform, and compares and analyzes the marked and grouped data. If the response time exceeds the limit or the effective trigger rate is lower than the threshold, a communication signal containing the communication performance abnormality type is generated and sent to the monitoring marking module.

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