A test device and method for testing the vibration performance of a sensor injection connector

Abstract

This invention discloses a testing device and method for testing the vibration performance of a sensor injection-molded connector, belonging to the field of electronic reliability testing technology. The invention fixes the sensor with the injection-molded connector under test onto a vibration test bench. The test bench's wiring harness connects the sensor's injection-molded connector to the controller connector, with the harness rigidly fixed and the length of the harness from the connector's output end to the fixing component limited to a preset threshold. When powered on, the controller-side signal voltage during normal connection is collected as a reference value. The connector is disconnected to obtain abnormal disconnection values. After calibration, the connection is restored, and a data acquisition instrument collects and stores the controller-side signal voltage waveform in real time. After the test, based on the pre-calibrated voltage parameters, waveform voltage jump events are identified to determine whether the injection-molded connector experienced a momentary disconnection under vibration conditions, thus achieving vibration performance testing. This invention can simulate the actual stress state of the wiring harness, accurately capture momentary connector disconnection faults, and improve the accuracy of vibration reliability testing.

Description

Technical Field

[0001] This application relates to the field of electronic reliability testing technology, and in particular to a test device for testing the vibration performance of a sensor injection molded connector, a test method for testing the vibration performance of a sensor injection molded connector, an electronic device, and a storage medium. Background Technology

[0002] With the continuous development of automotive electronic and electrical technology, vehicle operating conditions and application scenarios are becoming increasingly diverse, and the number of sensors installed in vehicles is constantly increasing. Consequently, the reliability requirements for signal transmission between sensors and controllers are also rising. During vehicle operation, the connector interface is prone to momentary disconnection (hereinafter referred to as momentary disconnection) due to continuous vibration loads, which can lead to system malfunctions or even functional failures. Therefore, the sensor body must be equipped with a highly reliable connector with excellent vibration resistance.

[0003] To achieve platform-based applications of sensors and reduce the variety of sensor types, the same sensor is often used in both passenger and commercial vehicles, and may even be installed in different locations within the same vehicle model, with significant differences in vibration load characteristics at these locations. When the same sensor is applied to a new installation location, it is necessary to evaluate and verify whether its connector will experience transient signal interruption under vibration conditions.

[0004] Currently, there are two main testing methods for the vibration performance of sensor connectors: one is the offline vibration test method, which involves vibrating the sensor without power and then powering it on after the vibration test to check if the sensor is working properly. This method cannot monitor the signal status of the sensor connector in real time during vibration, and it is difficult to capture the transient interruptions that occur during vibration, thus failing to accurately reflect the actual vibration reliability of the connector. The other is the destructive lead wire test method, which involves partially cutting open the tail of the sensor and soldering leads from inside the connector terminals of the sensor body, then connecting external test wires to monitor transient interruptions during vibration, thereby determining whether the connector meets the vibration requirements. However, this method causes irreversible structural damage to the sensor body, rendering the sensor unusable after the test, increasing the cost of the test samples, and the internal soldering operation changes the original stress state and mating characteristics of the terminals, which can easily cause deviations between the test results and the actual vehicle installation conditions.

[0005] Therefore, there is an urgent need to develop a test method that can monitor the signal status during vibration in real time and accurately determine the vibration performance of the sensor connector without damaging the sensor body, so as to reduce test costs and meet the vibration reliability verification requirements of sensor platform applications. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a test device for testing the vibration performance of a sensor injection molded connector, a test method for testing the vibration performance of a sensor injection molded connector, an electronic device and a storage medium, which aims to solve the problem of judging the vibration performance of the sensor connector by real-time monitoring of the signal status without damaging the sensor body, thereby avoiding cost losses caused by damaging the sensor.

[0007] This invention provides the following solution: According to one aspect of the present invention, a test apparatus for testing the vibration performance of a sensor injection molded connector is provided, comprising: a vibration test platform, a sensor fixture, a test connection harness, a data acquisition unit, and a controller; The sensor fixture is mounted on the vibration test platform, which enables the sensor fixture to provide vibration excitation to the sensor under test; the sensor under test is fixed on the sensor fixture; the sensor under test is connected to the injection molding connector. The data acquisition unit is connected to the sensor under test via the test connection harness and is electrically connected to the controller. The data acquisition unit includes interconnected data storage units and waveform analysis units; The data storage unit is used to store the voltage waveform data during the entire vibration process and output it to the waveform analysis unit. The waveform analysis unit is used to identify transient events in the voltage waveform data based on the pre-calibrated normal insertion reference voltage threshold and connector disconnection abnormal voltage threshold, and to count the number of transient events and the duration of each transient event.

[0008] Furthermore, the sensor fixture is a rigid connection fixture. The sensor under test is rigidly connected to the vibration test platform through the sensor fixture, and the vibration excitation is transmitted to the injection connector interface of the sensor under test.

[0009] Furthermore, it also includes: a wire harness fastening mechanism; The wire harness fastening mechanism is a clip structure, which presses and fixes the test wire harness on the vibration test platform.

[0010] Furthermore, the length of the test connection harness segment between the injection-molded connector outlet of the sensor under test and the harness fastening mechanism is not greater than a preset threshold. The controller, data acquisition unit, and voltage stabilization power supply unit are all mounted on a fixed foundation that does not vibrate with the vibration test platform; The voltage regulator unit is electrically connected to the controller and the sensor under test, respectively, and is used to provide a stable operating voltage for the controller and the sensor under test.

[0011] Furthermore, the waveform analysis unit includes: Based on the pre-calibrated normal insertion reference voltage threshold and connector disconnection abnormal voltage threshold, voltage jumps that fall within the disconnection abnormal voltage threshold range and last for a duration not less than the preset threshold are identified as transient events, and the number of transient events and the duration of a single transient event are counted.

[0012] Furthermore, the controller is fixedly mounted on the rigid platform of the vibration test platform to test the vibration performance of the controller connector; The sensor under test is mounted on a fixed foundation that does not vibrate with the vibration test platform; The wire harness fastening mechanism is fixed to the vibration test platform, and the length of the wire harness segment between the controller connector outlet and the wire harness fastening mechanism is not greater than a preset threshold.

[0013] Furthermore, the data acquisition unit is a data acquisition device used to capture voltage transient signals with a duration of not less than a preset threshold.

[0014] According to a second aspect of the present invention, a test method for testing the vibration performance of a sensor injection molded connector is provided, comprising the following steps: The sensor under test, which is connected to the injection-molded connector, is fixed to the vibration test platform using a sensor clamp. The test connection harness completes the insertion of the injection-molded connector and the controller, as well as the electrical connection between the data acquisition unit and the controller, and connects the controller, the sensor under test, and the power supply. Turn on the power and collect the signal voltage value on the controller side through the data acquisition unit, which will be used as the normal plug-in reference voltage threshold. Keep the controller powered on, disconnect the injection connector, collect the signal voltage value on the controller side through the data acquisition unit, and use it as the abnormal voltage threshold for connector disconnection. After calibration, reconnect the injection connector to restore circuit continuity. Start the vibration test platform, apply vibration excitation to the sensor under test, and simultaneously start the data acquisition unit to collect the signal voltage waveform on the controller side in real time. The voltage waveform data during the vibration process is stored in the data storage unit throughout the process. After the vibration test, the waveform analysis unit identifies transient events in the voltage waveform based on the pre-calibrated normal connection reference voltage threshold and connector disconnection abnormal voltage threshold, counts the number of transient events and the duration of each transient event, and completes the vibration performance test.

[0015] According to three aspects of the present invention, an electronic device is provided, comprising: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; The memory stores a computer program, which, when executed by a processor, causes the processor to perform steps of a test method for the vibration performance of a sensor injection molded connector.

[0016] According to four aspects of the present invention, a computer-readable storage medium is provided that stores a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of a test method for testing the vibration performance of a sensor injection molded connector.

[0017] Compared with the prior art, the present invention has the following advantages: The signal acquisition terminal of this invention is located on the controller side pin. Relying on the existing signal loop between the sensor and the controller, it indirectly identifies the momentary disconnection state of the connector through changes in the loop level. This eliminates the need to disassemble the sensor's injection-molded housing or solder leads to the internal terminals of the sensor, thus preventing irreversible structural damage to the sensor body. The sensor sample can be used normally after the test, effectively reducing sample wear and tear. It is particularly suitable for sensor platform verification scenarios in the small-batch trial production stage, significantly reducing testing costs.

[0018] This invention is equipped with a high-speed data acquisition instrument and electrically connected to the signal pins on the controller side. It can continuously acquire and store signal voltage waveforms during vibration loading, capture millisecond-level instantaneous voltage jumps, and accurately identify connector momentary disconnection events that occur during vibration. This solves the problem that traditional offline vibration tests cannot monitor dynamic connection status and are prone to missing momentary disconnection defects. The test results are more consistent with the real operating conditions of actual vehicles.

[0019] This invention uses a rigid sensor clamp to rigidly connect the sensor under test to the vibration test bench, ensuring that the vibration load is transmitted to the connector mating interface without attenuation. By using a wire harness fixing component set on the vibration table, the length of the wire harness from the outlet end of the sensor injection-molded connector to the fixing point is limited to no more than 150mm, which effectively suppresses the inertial pulling force of the wire harness cantilever during vibration, eliminates the interference of the additional load of the wire harness on the mating interface, ensures that the vibration load actually acts on the connector mating surface, and improves the reliability and reproducibility of the test results.

[0020] This invention configures a regulated power supply to provide a stable operating voltage for the controller and sensors, which can avoid interference from power fluctuations on signal voltage and ensure the stability of reference calibration values ​​and test data. At the same time, based on the pre-calibrated normal plug-in reference voltage and abnormal disconnection voltage of the device, a quantitative instantaneous interruption judgment standard can be formed to eliminate the influence of differences in signals from different sensors, and the performance judgment results are objective and reproducible. Attached Figure Description

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

[0022] Figure 1 This is a structural diagram of a test device for testing the vibration performance of injection-molded connectors for testing sensors, provided by one or more embodiments of the present invention.

[0023] Figure 2 This is a flowchart of a test method for testing the vibration performance of a sensor injection molded connector, provided by one or more embodiments of the present invention.

[0024] Figure 3 This is a connection diagram of a test device for testing the vibration performance of a sensor injection molded connector, according to a specific embodiment of the present invention.

[0025] Figure 4 This is a wiring diagram of a temperature sensor in a test device for testing the vibration performance of injection-molded connectors, according to a specific embodiment of the present invention.

[0026] Figure 5 This is a wiring diagram of a pressure sensor in a test device for testing the vibration performance of injection-molded connectors, according to a specific embodiment of the present invention.

[0027] Figure 6 This is a structural block diagram of an electronic device according to one or more embodiments of the present invention, which provides a method for testing the vibration performance of a sensor injection molded connector.

[0028] In the diagram: 1-Vibration test bench; 2-Sensor clamp; 3-Temperature sensor; 4-Pressure sensor; 5-Temperature sensor connector; 6-Pressure sensor connector; 7-Snap pin; 8-Test bench harness; 9-Controller; 10-Controller connector; 11-Data acquisition instrument; 12-Regulated power supply. Detailed Implementation

[0029] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0030] Figure 1 This is a structural diagram of a test device for testing the vibration performance of injection-molded connectors for testing sensors, provided by one or more embodiments of the present invention.

[0031] like Figure 1 As shown, it includes: Vibration test platform, sensor fixtures, test connection harness, data acquisition unit, regulated power supply unit, and controller; The sensor fixture is mounted on the vibration test platform, which enables the sensor fixture to provide vibration excitation to the sensor under test; the sensor under test is fixed on the sensor fixture; the sensor under test is connected to the injection molding connector. The data acquisition unit is connected to the sensor under test via the test connection harness and is electrically connected to the controller. The data acquisition unit includes interconnected data storage units and waveform analysis units; The data storage unit is used to store the voltage waveform data during the entire vibration process and output it to the waveform analysis unit. The waveform analysis unit is used to identify transient events in the voltage waveform data based on the pre-calibrated normal insertion reference voltage threshold and connector disconnection abnormal voltage threshold, and to count the number of transient events and the duration of each transient event.

[0032] The voltage regulator unit is electrically connected to the controller and the sensor under test, respectively, and is used to provide a stable operating voltage for the controller and the sensor under test.

[0033] In one embodiment, the sensor fixture is a rigid connection fixture, and the sensor under test is rigidly connected to the vibration test platform through the sensor fixture, so that the vibration excitation is transmitted to the injection connector interface of the sensor under test.

[0034] In one embodiment, it further includes: a wire harness fastening mechanism; The wire harness fastening mechanism is a clip structure, which presses and fixes the test wire harness on the vibration test bench surface.

[0035] In one embodiment, the data acquisition device is a high-speed data acquisition device with a sampling frequency of not less than 1 kHz, used to capture voltage transient signals with a duration of not less than 1 ms.

[0036] In one embodiment, the length of the test connection harness segment between the injection-molded connector outlet of the sensor under test and the harness fastening mechanism is not greater than a preset threshold. The controller, data acquisition unit, and voltage stabilization power supply unit are all mounted on a fixed foundation that does not vibrate with the vibration test platform.

[0037] In one embodiment, the waveform analysis unit includes: Based on the pre-calibrated normal insertion reference voltage threshold and connector disconnection abnormal voltage threshold, voltage jumps that fall within the disconnection abnormal voltage threshold range and last for a duration not less than the preset threshold are identified as transient events, and the number of transient events and the duration of a single transient event are counted.

[0038] In one embodiment, the apparatus can be switched to a controller-side vibration testing setup: The controller is fixedly mounted on the rigid platform of the vibration test platform by a sensor clamp to test the vibration performance of the controller connector. The sensor under test is set on a fixed foundation that does not vibrate with the vibration test platform. The wire harness fastener is fixed to the vibration test bench surface, and the length of the wire harness segment between the controller connector outlet and the wire harness fastening mechanism is not greater than a preset threshold.

[0039] It is worth noting that although only some basic functional modules are disclosed in this embodiment, it does not mean that the composition of this system is limited to the above-mentioned basic functional modules. On the contrary, what this embodiment intends to express is that, based on the above-mentioned basic functional modules, those skilled in the art can arbitrarily add one or more functional modules in combination with existing technology to form an infinite number of embodiments or technical solutions. That is to say, this system is open rather than closed. The fact that this embodiment only discloses a few basic functional modules does not mean that the scope of protection of the claims of this invention is limited to the disclosed basic functional modules. At the same time, for the convenience of description, the above device is described separately according to its functions as various units and modules. Of course, in implementing this invention, the functions of each unit and module can be implemented in one or more software and / or hardware.

[0040] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0041] Figure 2 This is a flowchart of a test method for testing the vibration performance of a sensor injection molded connector, provided by one or more embodiments of the present invention.

[0042] like Figure 2 As shown, it includes the following steps: Step S1: Fix the sensor under test, which is connected to the injection-molded connector, onto the vibration test platform using a sensor clamp; Step S2: Complete the insertion of the injection-molded connector and the controller through the test connection harness, as well as the electrical connection between the data acquisition unit and the controller, and connect the controller, the sensor under test and the power supply. Step S3: Turn on the power and collect the signal voltage value on the controller side through the data acquisition unit as the normal plug-in reference voltage threshold. Step S4: Keep the controller powered on, disconnect the injection connector, collect the signal voltage value on the controller side through the data acquisition unit, and use it as the abnormal voltage threshold for connector disconnection. After calibration, reconnect the injection connector to restore circuit continuity. Step S5: Start the vibration test platform, apply vibration excitation to the sensor under test, and simultaneously start the data acquisition unit to acquire the signal voltage waveform on the controller side in real time, and store the voltage waveform data during the vibration process through the data storage unit. Step S6: After the vibration test is completed, the waveform analysis unit identifies transient events in the voltage waveform based on the pre-calibrated normal connection reference voltage threshold and connector disconnection abnormal voltage threshold, counts the number of transient events and the duration of a single transient event, and completes the vibration performance test.

[0043] Specifically, by pre-calibrating the normal insertion reference voltage threshold and the connector disconnection abnormal voltage threshold, an objective judgment basis is formed. Based on the voltage waveform, transient interruption events are automatically identified, effectively avoiding errors from subjective human judgment. This method can distinguish between signal noise and actual contact interruptions, reducing the probability of misjudgment. The signal acquisition point is set on the controller side, closely matching the actual installation and use conditions of the sensor, accurately reproducing the electrical characteristics transmitted from abnormal contact of the injection-molded connector to the electronic control end, thus increasing the reference value of the test results. This method conducts vibration excitation testing under the energized operating state of the sensor, simulating the energized vibration conditions during product service. This effectively exposes dynamic transient interruption defects caused by loose connector terminals and poor contact during vibration, overcoming the shortcomings of traditional vibration tests that only perform static detection before and after vibration and are difficult to capture short-term transient faults. During the vibration test, the original voltage waveform is continuously acquired and completely stored. This not only allows for the statistical analysis of the number of transient interruptions and their duration but also supports failure process backtracking, facilitating the correlation of vibration excitation parameters to locate structural weak points and providing data support for the optimization of injection-molded connector structures. The entire testing process is standardized and controllable, with good test reproducibility, and is easy to be transformed into standardized testing specifications. At the same time, the test architecture is highly versatile. After changing the sensor under test, only threshold calibration needs to be completed to carry out the test. The tooling and testing system are highly reusable and can be adapted to a variety of sensor products equipped with injection-molded connectors, reducing the reliability verification cost of multiple product categories.

[0044] Figure 3 This is a connection diagram of a test device for testing the vibration performance of a sensor injection molded connector, according to a specific embodiment of the present invention.

[0045] like Figure 3 As shown, this embodiment provides a connector vibration performance testing method to verify the contact reliability of automotive connectors under vibration conditions, and the testing process does not require damage to the sensor body. The specific implementation process is as follows: First, complete the test bench setup. The installation requirements for each component are as follows: Fix sensor fixture 2 to the vibration table surface of vibration test bench 1. Fix temperature sensor 3 and pressure sensor 4 to sensor fixture 2 accordingly, so that the sensors are vibrated synchronously with the vibration test bench. Fix controller 9, data acquisition instrument 11 and regulated power supply 12 to the ground or cabinet that do not vibrate synchronously with vibration test bench 1, so that the electrical control and acquisition terminals remain stationary. After reliably connecting each sensor, controller 9 and data acquisition instrument 11 using bench test wiring harness, fix the test wiring harness to the table surface of vibration test bench 1 with clips 7. Control the length of the wiring harness from temperature sensor connector 5 and pressure sensor connector 6 to clips 7 to be less than 150mm to avoid the weight and tensile force of the wiring harness acting on the connector contact parts during vibration, which would cause additional interference to the test results.

[0046] After the test bench is set up, the baseline and abnormal value calibration before vibration is performed: turn on the regulated power supply 12 to power the system, so that the controller 9, temperature sensor 3, and pressure sensor 4 are in normal working condition. The voltage values ​​of signal 2 and signal 5 are monitored and recorded by the data acquisition instrument 11 as the baseline values. For example, under normal conduction state, the voltage of signal 2 is 0.9V and the voltage of signal 5 is 1.4V. Then disconnect the temperature sensor connector 5 and the pressure sensor connector 6 to make the connectors completely disconnected. At this time, the voltage values ​​of signal 2 and signal 5 measured by the data acquisition instrument 11 are the open circuit voltages of the internal circuit signal interfaces of the ECU. These are recorded as abnormal values. For example, under disconnection state, the voltage of signal 2 is 5V and the voltage of signal 5 is 0V. By comparing the baseline value and the abnormal value, it can be verified that when the temperature sensor connector 5 and the pressure sensor connector 6 experience a momentary power failure, the corresponding signal voltage collected by the data acquisition instrument 11 will produce a recognizable characteristic jump.

[0047] After completing the baseline data measurement and comparison before vibration, the vibration test bench 1 is started to apply vibration load. During the test, the voltage waveforms of signals 2 and 5 are acquired, recorded, and stored in real time by the data acquisition instrument 11. Figure 4 and Figure 5The connection diagram is shown below. After the vibration test is completed, the stored waveform data is retrieved, and the voltage change that is consistent with the above-mentioned abnormal value is detected in the waveform. This will determine whether the temperature sensor connector 5 and pressure sensor connector 6 experienced a momentary disconnection during the test. Thus, without damaging the sensor body, it can be determined whether the vibration resistance to momentary disconnection of this type of sensor connector meets the usage requirements.

[0048] In another embodiment of the present invention, the same test principle is used to verify the vibration performance of the controller-side connector: the controller 9 is fixedly installed on the vibration table of the vibration test bench 1, and the temperature sensor 3 and pressure sensor 4 are fixedly arranged on the ground or cabinet that do not vibrate synchronously with the vibration test bench 1. The above-mentioned benchmark calibration, vibration loading and waveform analysis steps are repeated to realize the test and verification of the vibration contact reliability of the controller connector 10.

[0049] Figure 6 This is a structural block diagram of an electronic device according to one or more embodiments of the present invention, which provides a method for testing the vibration performance of a sensor injection molded connector.

[0050] like Figure 6 As shown, this application provides an electronic device, including: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; The memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of a test method for the vibration performance of a sensor injection molded connector.

[0051] This application also provides a computer-readable storage medium storing a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of a test method for testing the vibration performance of a sensor injection molded connector.

[0052] For the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0053] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of this application.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A testing device for testing the vibration performance of injection-molded connectors for sensors, characterized in that, include: Vibration test platform, sensor fixtures, test connection harness, data acquisition unit, voltage regulator unit, and controller; The sensor fixture is mounted on the vibration test platform, which enables the sensor fixture to provide vibration excitation to the sensor under test; the sensor under test is fixed on the sensor fixture; the sensor under test is connected to the injection molding connector. The data acquisition unit is connected to the sensor under test via the test connection harness and is electrically connected to the controller. The data acquisition unit includes interconnected data storage units and waveform analysis units; The data storage unit is used to store the voltage waveform data during the entire vibration process and output it to the waveform analysis unit. The waveform analysis unit is used to identify transient events in the voltage waveform data based on the pre-calibrated normal insertion reference voltage threshold and connector disconnection abnormal voltage threshold, and to count the number of transient events and the duration of each transient event.

2. The testing device for testing the vibration performance of injection molded connectors for sensors according to claim 1, characterized in that, The sensor fixture is a rigid connection fixture. The sensor under test is rigidly fixed to the vibration test platform through the sensor fixture, and the vibration excitation of the vibration test platform is transmitted to the insertion interface of the injection connector.

3. The testing device for testing the vibration performance of injection molded connectors for sensors according to claim 1, characterized in that, Also includes: Wire harness fastening mechanism; The wire harness fastening mechanism is a clip structure, which presses and fixes the test wire harness on the vibration test platform.

4. The testing device for testing the vibration performance of injection molded connectors for sensors according to claim 3, characterized in that, include: The length of the test connection harness segment between the injection-molded connector outlet of the sensor under test and the harness fastening mechanism shall not exceed a preset threshold. The controller, data acquisition unit, and voltage stabilization power supply unit are all mounted on a fixed foundation that does not vibrate with the vibration test platform; The voltage regulator unit is electrically connected to the controller and the sensor under test, respectively, and is used to provide a stable operating voltage for the controller and the sensor under test.

5. The testing device for testing the vibration performance of injection molded connectors for sensors according to claim 1, characterized in that, The waveform analysis unit includes: Based on the pre-calibrated normal insertion reference voltage threshold and connector disconnection abnormal voltage threshold, voltage jumps that fall within the disconnection abnormal voltage threshold range and last for a duration not less than the preset threshold are identified as transient events, and the number of transient events and the duration of a single transient event are counted.

6. The testing device for testing the vibration performance of injection molded connectors for sensors according to claim 1, characterized in that: The controller is fixedly installed on the rigid platform of the vibration test platform and is used to test the vibration performance of the controller connector. The sensor under test is mounted on a fixed foundation that does not vibrate with the vibration test platform; The wire harness fastening mechanism is fixed to the vibration test platform, and the length of the wire harness segment between the controller connector outlet and the wire harness fastening mechanism is not greater than a preset threshold.

7. The testing device for testing the vibration performance of injection molded connectors for sensors according to claim 1, characterized in that, The data acquisition unit is a data acquisition device used to capture voltage transient signals with a duration of not less than a preset threshold.

8. A test method for testing the vibration performance of a sensor injection molded connector, characterized in that, The test is conducted using the vibration performance testing apparatus for injection molded connectors according to any one of claims 1-7, and includes the following steps: The sensor under test, which is connected to the injection-molded connector, is fixed to the vibration test platform using a sensor clamp. The test connection harness completes the insertion of the injection-molded connector and the controller, as well as the electrical connection between the data acquisition unit and the controller, and connects the controller, the sensor under test, and the power supply. Turn on the power and collect the signal voltage value on the controller side through the data acquisition unit, which will be used as the normal plug-in reference voltage threshold. Keep the controller powered on, disconnect the injection connector, collect the signal voltage value on the controller side through the data acquisition unit, and use it as the abnormal voltage threshold for connector disconnection. After calibration, reconnect the injection connector to restore circuit continuity. Start the vibration test platform, apply vibration excitation to the sensor under test, and simultaneously start the data acquisition unit to collect the signal voltage waveform on the controller side in real time. The voltage waveform data during the vibration process is stored in the data storage unit throughout the process. After the vibration test, the waveform analysis unit identifies transient events in the voltage waveform based on the pre-calibrated normal connection reference voltage threshold and connector disconnection abnormal voltage threshold, counts the number of transient events and the duration of each transient event, and completes the vibration performance test.

9. An electronic device, characterized in that, include: The processor, communication interface, memory, and communication bus are connected, with the processor, communication interface, and memory communicating with each other via the communication bus. The memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the test method for the vibration performance of a sensor injection molded connector as described in claim 8.

10. A computer-readable storage medium, characterized in that, It stores a computer program that can be executed by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the test method for the vibration performance of a sensor injection molded connector as described in claim 8.

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