Microstrip radio frequency electric connector endurance modularization test device and test method

Abstract

The invention belongs to the technical field of aerospace component reliability detection, and discloses a endurance modularization test device and test method for a microstrip radio frequency electric connector, the device comprises a support frame and a fixing assembly, the support frame is arranged on a test bed, a fixing plate is detachably arranged on the support frame, and the fixing assembly is arranged on the support frame. The two mounting plates are arranged on the two opposite sides of the fixing plate at intervals, mounting stations are arranged on the sides, back to each other, of the two mounting plates, and the radio frequency electric connectors are detachably arranged on the mounting stations; a printed board is arranged on the fixed plate, and the printed board is connected between an external lead and a microstrip at the tail end of the radio frequency electric connector and serves as a transition medium, so that the tail end of the radio frequency electric connector can be effectively prevented from being directly stressed, and the purpose of checking electrical continuity is achieved; according to the radio frequency electric connectors of different models, fixing assemblies of different models can be designed, only several fixing assemblies of different models are needed to cover dozens of radio frequency electric connectors of different installation sizes, the applicability is good, and the test cost can be saved.

Description

Technical Field

[0001] The present invention relates to the technical field of reliability testing of aerospace components, and in particular to a modular testing device and method for mechanical resistance of a microstrip radio frequency electrical connector. Background Art

[0002] Microstrip RF connectors are widely used in aerospace equipment for RF signal transmission. The current national military standard (GJB976, "General Specification for RF Coaxial Connectors for Coaxial, Stripline, or Microstrip Transmission Lines") does not test microstrip RF connectors for mechanical stresses such as vibration and impact. This results in aerospace equipment relying on complete unit verification, which is not only inefficient but also can lead to the failure of the entire unit if a single connector fails to meet performance standards. Therefore, mechanical resistance testing of microstrip RF connectors is necessary.

[0003] When verifying the mechanical properties of electrical connectors, it's necessary to monitor the product's electrical continuity. However, for microstrip RF connectors, the tail end is crimped or soldered to the microstrip during use. If a wire is soldered to the tail end, the wire's own weight can easily tear the tail end of the product, making it impossible to ensure smooth electrical continuity testing. Furthermore, commonly used RF connectors come in a variety of specifications, requiring a corresponding test setup for each model. This not only affects test efficiency but also increases testing costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a modular mechanical resistance test device and test method for microstrip radio frequency electrical connectors to ensure the reliability and stability of radio frequency electrical connectors in aerospace environments, meet the hardware requirements for mechanical resistance testing of products, reduce development risks, improve development efficiency, and at the same time have good applicability and economy.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In one aspect, a modular testing device for mechanical resistance of a microstrip radio frequency electrical connector is provided, comprising:

[0007] A support frame is provided on the test bench;

[0008] A fixing assembly, comprising a fixing plate and two mounting plates, wherein the fixing plate is detachably mounted on the support frame, the two mounting plates are spaced apart and arranged on opposite sides of the fixing plate, and an installation station is provided on the side of the two mounting plates facing away from each other, and the RF electrical connector is detachably mounted on the installation station;

[0009] A printed board is provided on the fixing plate. One end of the printed board is connected to an external wire, and the other end is connected to the microstrip at the tail end of the corresponding radio frequency electrical connector.

[0010] As an optional solution for the modular mechanical resistance test device of the microstrip RF electrical connector, the installation station is provided with a plurality of fastening holes spaced apart along the circumference, the RF electrical connector is provided with a plurality of fixing holes spaced apart along the circumference, the plurality of fastening holes correspond to the plurality of fixing holes one by one, and the fasteners pass through the fixing holes in sequence and are locked in the corresponding fastening holes;

[0011] An avoidance hole is provided on the installation station, and the avoidance hole is used to allow the microstrip at the tail end of the radio frequency electrical connector to pass through.

[0012] As an optional solution for the modular mechanical resistance test device of the microstrip RF electrical connector, a plurality of lead holes are provided on the fixing plate, and the plurality of lead holes are arranged at intervals along the circumference of the printed circuit board, and the lead holes are used to allow the wires to pass through.

[0013] As an optional solution for the modular mechanical resistance test device for microstrip radio frequency electrical connectors, the support frame and the fixing assembly are both made of aluminum alloy material.

[0014] As an optional solution for the modular mechanical resistance test device for microstrip radio frequency electrical connectors, it also includes multiple connecting parts;

[0015] The support frame is provided with a plurality of first connection holes at intervals along the circumferential direction, and the fixing plate is provided with a plurality of second connection holes at intervals along the circumferential direction. The plurality of first connection holes corresponds one to one with the plurality of second connection holes, and the connecting member passes through the second connection hole and is locked in the corresponding first connection hole.

[0016] As an optional solution for the modular mechanical resistance test device of the microstrip radio frequency electrical connector, the two mounting plates are integrally formed with the fixing plate.

[0017] As an optional solution for the modular mechanical resistance test device of the microstrip radio frequency electrical connector, arc-shaped chamfers are provided at both ends of the mounting plate along the length direction.

[0018] As an optional solution for the modular mechanical resistance test device of the microstrip RF electrical connector, a plurality of the installation stations are arranged at intervals on the installation plate, a plurality of the printed boards are arranged on the fixed plate, and each of the RF electrical connectors is connected to a corresponding printed board.

[0019] As an optional solution for the modular mechanical resistance test device of the microstrip radio frequency electrical connector, the conductor is a flexible conductor.

[0020] On the other hand, a modular mechanical resistance test method for microstrip radio frequency electrical connectors is provided, which is applied to the modular mechanical resistance test device for microstrip radio frequency electrical connectors, and includes the following steps:

[0021] S1: device assembly;

[0022] Select a corresponding fixing component according to the model of the RF electrical connector, and place the RF electrical connector on the installation position of the installation plate;

[0023] placing the fixing plate on the support frame, and then placing the support frame on the test bench;

[0024] S2: test parameter setting;

[0025] Sine vibration test: Set the sweep frequency range to 10-2000 Hz, the acceleration amplitude to 20 g, the sweep rate to 1 oct / min, and perform the test in three axes (X / Y / Z), with each axis lasting 30 minutes.

[0026] Random vibration test: set the sweep frequency range to 10-2000Hz and the power spectrum density to 0.2G 2 / Hz, three axial (X / Y / Z) tests were performed, 15 min in each direction;

[0027] Impact test: According to GJB1217A method 2004, apply half-sine wave impact, peak value 490m / s 2 , pulse width 6ms, six axial (±X / ±Y±Z) tests, 3 times in each direction, simulating the mechanical environment of the aerospace model during launch;

[0028] S3: electrical signal monitoring and data feedback;

[0029] The printed circuit board leads out the signal and connects it to an oscilloscope or a transient meter to monitor the electrical continuity in real time;

[0030] If a signal interruption is detected, an alarm is triggered and the test is suspended to avoid damage to the radio frequency electrical connector.

[0031] Beneficial effects of the present invention:

[0032] The present invention provides a modular test device for the mechanical resistance of microstrip radio frequency electrical connectors, wherein a fixed plate is detachably mounted on a support frame, two mounting plates are spaced apart and arranged on opposite sides of the fixed plate, and an installation station is provided on the side of the two mounting plates facing away from each other, and the radio frequency electrical connector is detachably mounted on the installation station; a printed circuit board is provided on the fixed plate, one end of the printed circuit board is connected to an external wire, and the other end is connected to the microstrip at the tail end of the radio frequency electrical connector, and the printed circuit board serves as a transition medium, which can effectively prevent the tail end of the radio frequency electrical connector from being directly subjected to force, and can ensure the electrical continuity of the radio frequency electrical connector during vibration testing, thereby meeting the purpose of assessing electrical continuity. Different types of fixed components can be designed for different types of radio frequency electrical connectors, and only a few different types of fixed components are needed to cover dozens of radio frequency electrical connectors of different installation sizes, which has better applicability and can save test costs. In addition, the hollow structure of the support frame can be applied to a variety of vibration tables or impact tables, and also has good applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a front view of the test device provided in the embodiment of the specific embodiment of the present invention;

[0034] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0035] Figure 3 is a front view of a support frame provided in an embodiment of a specific embodiment of the present invention;

[0036] Figure 4 is a top view of a support frame provided in an embodiment of a specific embodiment of the present invention;

[0037] Figure 5 is a top view of a fixing assembly provided in an embodiment of a specific embodiment of the present invention;

[0038] Figure 6 is a cross-sectional view of a fixing assembly provided in an embodiment of a specific embodiment of the present invention;

[0039] Figure 7 It is a side view of a fixing assembly provided in an embodiment of a specific implementation of the present invention.

[0040] In the picture:

[0041] 100. RF electrical connector; 101. Microstrip;

[0042] 1. Support frame; 11. First connection hole;

[0043] 2. Fix the components;

[0044] 21. Fixing plate; 210. Printed circuit board; 211. Lead hole; 212. Second connection hole;

[0045] 22. Mounting plate; 220. Mounting station; 221. Fastening hole; 222. Avoidance hole. DETAILED DESCRIPTION

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0047] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0048] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0049] In the description of this embodiment, terms such as "upper," "lower," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0050] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0051] like Figures 1 to 7As shown, this embodiment provides a modular mechanical resistance test device for microstrip RF electrical connectors. The test device includes a support frame 1 and a fixing assembly 2. The support frame 1 is arranged on a test bench. The fixing assembly 2 includes a fixing plate 21 and two mounting plates 22. The fixing plate 21 is detachably mounted on the support frame 1. The two mounting plates 22 are spaced apart on opposite sides of the fixing plate 21. An installation station 220 is provided on the side of the two mounting plates 22 facing away from each other. The RF electrical connector 100 is detachably mounted on the installation station 220. A printed circuit board 210 is provided on the fixing plate 21. One end of the printed circuit board 210 is connected to an external wire, and the other end is connected to the microstrip 101 at the rear end of the RF electrical connector 100. The printed circuit board 210 acts as a transition medium, effectively preventing the rear end of the RF electrical connector 100 from being directly subjected to force. This ensures that the electrical continuity of the RF electrical connector 100 is tested during vibration, thereby meeting the purpose of assessing electrical continuity and facilitating mechanical resistance testing of the RF electrical connector 100. Different types of fixing assemblies 2 can be designed for different models of RF electrical connectors 100. Only a few different types of fixing assemblies 2 are needed to cover dozens of RF electrical connectors 100 with different installation sizes, improving applicability and reducing testing costs. Furthermore, the hollow structure of the support frame 1 is compatible with a variety of vibration tables or impact tables, demonstrating its excellent adaptability.

[0052] Specifically, the support frame 1 is fixed to the test bench by a clamping plate, wherein the clamping plate is a device already disclosed in the prior art and will not be described in detail here.

[0053] Optionally, the test device further comprises a plurality of connecting pieces. Figure 4 As shown, the support frame 1 is provided with a plurality of first connection holes 11 at intervals along the circumferential direction. Figure 5 The fixing plate 21 is provided with a plurality of second connection holes 212 at intervals along the circumferential direction. The plurality of first connection holes 11 correspond one-to-one to the plurality of second connection holes 212. The connecting piece (not shown in the figure), the first connection hole 11 and the second connection hole 212 correspond one-to-one. The connecting piece passes through the second connection hole 212 and is locked in the first connection hole 11 to realize the detachable connection between the fixing component 2 and the support frame 1. The operation is simple and convenient, which can effectively improve the test efficiency.

[0054] Specifically, in this embodiment, four first connection holes 11 and four second connection holes 212 are provided. In other embodiments, the number of the first connection holes 11 and the second connection holes 212 can be set as needed and is not specifically limited here.

[0055] Optionally, the two mounting plates 22 are integrally formed with the fixing plate 21, which can improve the structural strength of the fixing component 2 and reduce the risk of breakage or deformation of the fixing component 2 during the vibration test. At the same time, it can simplify the manufacturing process of the fixing component 2 and improve the production efficiency of the fixing component 2.

[0056] Optionally, refer to Figure 5 and Figure 6 The fixing plate 21 is provided with a plurality of lead holes 211, which are spaced apart along the circumference of the printed circuit board 210. The lead holes 211 are used to allow wires to pass through, thereby facilitating a conductive connection between an external power source and the printed circuit board 210. The provision of the lead holes 211 improves the neatness of the top side of the fixing plate 21 and prevents interference between the microstrip 101 at the end of the RF electrical connector 100 and the wires.

[0057] For example, in this embodiment, four lead holes 211 are spaced apart around each printed circuit board 210 ; in other embodiments, the number of lead holes 211 can be set as needed and is not specifically limited here.

[0058] Alternatively, as Figure 7 As shown, multiple installation stations 220 are spaced apart on the mounting plate 22, and multiple printed circuit boards 210 are provided on the fixing plate 21. Each RF electrical connector 100 is provided with a corresponding printed circuit board 210. This arrangement allows for simultaneous mechanical resistance testing of multiple RF electrical connectors 100, effectively improving testing efficiency.

[0059] Illustratively, in this embodiment, two installation stations 220 are arranged at intervals on each installation plate 22 , and correspondingly, four printed circuit boards 210 are arranged on the fixing plate 21 .

[0060] Optionally, continue with reference to Figure 7 The installation station 220 is provided with a plurality of fastening holes 221 spaced apart along the circumferential direction, and the RF electrical connector 100 is provided with a plurality of fixing holes spaced apart along the circumferential direction. The plurality of fastening holes 221 correspond to the plurality of fixing holes one by one, and the fasteners pass through the fixing holes in sequence and are locked in the corresponding fastening holes 221, so that the RF electrical connector 100 can be detachably set on the installation station 220; the installation station 220 is provided with an avoidance hole 222, which is used to allow the microstrip 101 at the tail end of the RF electrical connector 100 to pass through, so as to ensure the electrical continuity of the RF electrical connector 100.

[0061] Illustratively, in this embodiment, four fastening holes 221 are provided; and the fastening holes 221 are threaded holes, and the fasteners are bolts.

[0062] Optionally, mounting plate 22 may be provided with curved chamfers at both ends along its length. This, on the one hand, prevents sharp edges from scratching test personnel or damaging other objects during use, eliminating potential safety hazards; on the other hand, it optimizes uniform stress distribution, improves the fatigue resistance and overall strength of mounting plate 22, and reduces the risk of brittle fracture.

[0063] Optionally, the support frame 1 and the fixing assembly 2 are both made of aluminum alloy material, preferably lightweight aluminum alloy. Aluminum alloy material has high specific stiffness. Specifically, simulation is performed by finite element ANSYS, with a grid size of 0.5 mm. The constraint condition is that the bottom of the support frame 1 is fixed, the device structure is optimized, and the first-order natural frequency of the device is ensured to be greater than 2000 Hz, avoiding the resonant frequency range of the test bench (typical range 500-1500 Hz) to prevent resonance, thereby ensuring the reliability of the subsequent mechanical resistance test results.

[0064] Optionally, the conductor is a flexible conductor. Flexible conductors offer excellent flexibility, fatigue resistance, and a long service life. They also protect the rear end of the RF connector 100 from stress, improving the electrical stability of the RF connector 100. Specifically, the flexible conductor is a conventional device known in the art. Its structure is referenced in the prior art and will not be further described here.

[0065] Optionally, the microstrip 101 is welded to the printed circuit board 210 . The welding connection method can ensure stable contact between the microstrip 101 and the printed circuit board 210 , thereby ensuring stable power supply to the RF electrical connector 100 .

[0066] Specifically, the determination of the mechanical test assessment level of the RF electrical connector 100 is mainly based on two considerations: one is the mechanical capacity that the RF electrical connector 100 can achieve during design; the other is the test stress that the RF electrical connector 100 needs to withstand during the use of the aerospace model. In response to the first point, the RF electrical connector 100 is subjected to a mechanical performance simulation test at the beginning of the design, and the random vibration level can meet the requirements of the test condition V letter G in the method 2005 specified in GJB1217A (power spectrum density 0.4G 2 / Hz), the sinusoidal vibration can reach the test condition IV (acceleration amplitude 20g) in the method 2005 specified in GJB1217A, and the impact level can reach the relevant mechanical assessment of test condition C (100g) in the method 2004. As for the second point, through research and analysis, it is known that the RF electrical connector 100 is subjected to a certain level of mechanical stress test during the use of aerospace models. The random vibration assessment level is generally the requirements of the letter V E of the test condition in the method 2005 specified in GJB1217A (power spectral density 0.2G 2 / Hz), the sinusoidal vibration test level is test condition IV (acceleration amplitude 20g) in method 2005 specified in GJB1217A, and the shock level is test condition A (50g) in 2004. In summary, the test levels for the 100% mechanical resistance test of RF electrical connectors are as follows:

[0067] Sinusoidal vibration: The RF electrical connector 100 is designed to have a sinusoidal vibration level that is much greater than that in aerospace applications. Therefore, the sinusoidal vibration assessment level can be set to the requirements of test condition IV (acceleration amplitude 20g) in method 2005 specified in GJB1217A.

[0068] Random vibration: The worst random vibration environment in aerospace model application environment and the requirements of test conditions V and E in method 2005 specified in GJB1217A (power spectrum density 0.2G 2 / Hz) requirements are consistent, so the magnitude of random vibration is determined to be the requirements of the test conditions V letter E in method 2005 specified in GJB1217A (power spectrum density 0.2G 2 / Hz) requirements;

[0069] Shock: The shock requirement during the use of aerospace models is the shock response spectrum test, with a maximum shock level of 8000g. This test belongs to the whole machine assessment test. Currently, component development units are unable to conduct this type of test. The current implementation plan is for component development units to conduct RF electrical connector 100 assessments based on the relevant component test methods, and for whole machine development units to conduct shock response spectrum test assessments based on the requirements of the shock response spectrum. Therefore, based on the RF electrical connector 100 itself, the assessment level of the shock test is determined to be test condition A (490m / s in method 2004 specified in GJB1217A). 2 ).

[0070] In addition, this embodiment further provides a modular mechanical resistance test method for microstrip radio frequency electrical connectors, which is applied to the aforementioned modular mechanical resistance test device for microstrip radio frequency electrical connectors, and includes the following steps:

[0071] S1: device assembly;

[0072] Select the corresponding fixing assembly 2 according to the model of the RF electrical connector 100, and place the RF electrical connector 100 on the installation station 220 of the installation plate 22;

[0073] The fixing plate 21 is placed on the supporting frame 1 , and the supporting frame 1 is then placed on a test bench.

[0074] Specifically, in the present embodiment, the above steps are as follows: the fastener passes through the fixing hole and is locked in the corresponding fastening hole 221, and the RF electrical connector 100 is detachably set on the installation station 220; the connector passes through the second connecting hole 212 and is locked in the first connecting hole 11, and the fixing plate 21 is detachably set on the support frame 1; and then the existing splint is used to fix the support frame 1 on the test bench.

[0075] S2: test parameter setting;

[0076] Sine vibration test: Set the sweep frequency range to 10-2000 Hz, the acceleration amplitude to 20 g, the sweep rate to 1 oct / min, and perform the test in three axes (X / Y / Z), with each axis lasting 30 minutes.

[0077] Random vibration test: set the sweep frequency range to 10-2000Hz and the power spectrum density to 0.2G 2 / Hz, three axial (X / Y / Z) tests were performed, 15 min in each direction;

[0078] Impact test: According to GJB1217A method 2004, apply half-sine wave impact, peak value 490m / s 2 , pulse width 6ms, six axial (±X / ±Y±Z) tests, 3 times in each direction, simulating the mechanical environment of the aerospace model during launch;

[0079] S3: electrical signal monitoring and data feedback;

[0080] The printed circuit board 210 leads out a signal and connects it to an oscilloscope or a transient meter to monitor the electrical continuity in real time;

[0081] If a signal interruption is detected, an alarm is triggered and the test is suspended to avoid damage to the RF electrical connector 100 .

[0082] In the above steps, specifically in this embodiment, the signal of the printed circuit board 210 is connected to an oscilloscope or a transient meter via a flexible wire. The oscilloscope and the transient meter are both devices known in the prior art. Their specific structures and principles are referenced in the prior art and are not described here in detail.

[0083] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A modular test device for mechanical resistance of microstrip radio frequency electrical connectors, characterized in that: include: A support frame (1) is arranged on the test bench; A fixing assembly (2), comprising a fixing plate (21) and two mounting plates (22), wherein the fixing plate (21) is detachably mounted on the supporting frame (1), the two mounting plates (22) are spaced apart and arranged on opposite sides of the fixing plate (21), and an installation station (220) is provided on the side of the two mounting plates (22) facing away from each other, and the radio frequency electrical connector (100) is detachably mounted on the installation station (220); A printed circuit board (210) is provided on the fixing plate (21), one end of the printed circuit board (210) is connected to an external wire, and the other end is connected to the microstrip (101) at the tail end of the corresponding radio frequency electrical connector (100).

2. The modular mechanical resistance test device for microstrip radio frequency electrical connectors according to claim 1, characterized in that: The installation station (220) is provided with a plurality of fastening holes (221) spaced apart along the circumference, the radio frequency electrical connector (100) is provided with a plurality of fixing holes spaced apart along the circumference, the plurality of fastening holes (221) correspond to the plurality of fixing holes one by one, and fasteners pass through the fixing holes in sequence and are locked in the corresponding fastening holes (221); The installation station (220) is provided with an avoidance hole (222), and the avoidance hole (222) is used to allow the microstrip (101) at the tail end of the radio frequency electrical connector (100) to pass through.

3. The modular mechanical resistance test device for microstrip radio frequency electrical connectors according to claim 1, characterized in that: The fixing plate (21) is provided with a plurality of lead holes (211), the plurality of lead holes (211) are arranged at intervals along the circumference of the printed circuit board (210), and the lead holes (211) are used to allow the wires to pass through.

4. The modular mechanical resistance test device for microstrip radio frequency electrical connectors according to claim 1, characterized in that: The supporting frame (1) and the fixing assembly (2) are both made of aluminum alloy material.

5. The modular mechanical resistance test device for microstrip radio frequency electrical connectors according to claim 1, characterized in that: Also included are a plurality of connectors; The support frame (1) is provided with a plurality of first connection holes (11) at intervals along the circumference, and the fixing plate (21) is provided with a plurality of second connection holes (212) at intervals along the circumference. The plurality of first connection holes (11) correspond to the plurality of second connection holes (212) one by one, and the connecting member passes through the second connection hole (212) and is locked in the corresponding first connection hole (11).

6. The modular mechanical resistance test device for microstrip radio frequency electrical connectors according to any one of claims 1 to 5, characterized in that: The two mounting plates (22) and the fixing plate (21) are integrally formed.

7. The modular mechanical resistance test device for microstrip radio frequency electrical connectors according to any one of claims 1 to 5, characterized in that: The mounting plate (22) is provided with arc-shaped chamfers at both ends along the length direction.

8. The modular mechanical resistance test device for microstrip radio frequency electrical connectors according to any one of claims 1 to 5, characterized in that: A plurality of the installation stations (220) are arranged at intervals on the installation plate (22), a plurality of the printed boards (210) are arranged on the fixing plate (21), and each of the radio frequency electrical connectors (100) is correspondingly connected to one of the printed boards (210).

9. The modular mechanical resistance test device for microstrip radio frequency electrical connectors according to any one of claims 1 to 5, characterized in that: The wire is a flexible wire.

10. A modular mechanical resistance test method for microstrip radio frequency electrical connectors, applied to the modular mechanical resistance test device for microstrip radio frequency electrical connectors according to any one of claims 1 to 9, characterized in that: The steps include: S1: device assembly; Selecting a corresponding fixing assembly (2) according to the model of the radio frequency electrical connector (100), and placing the radio frequency electrical connector (100) on an installation station (220) of a mounting plate (22); The fixing plate (21) is placed on the supporting frame (1), and the supporting frame (1) is then placed on a test bench; S2: test parameter setting; Sine vibration test: Set the sweep frequency range to 10-2000 Hz, the acceleration amplitude to 20 g, the sweep rate to 1 oct / min, and perform the test in three axes (X / Y / Z), with each axis lasting 30 minutes. Random vibration test: set the sweep frequency range to 10-2000Hz and the power spectrum density to 0.2G 2 / Hz, three axial (X / Y / Z) tests were performed, 15 min in each direction; Impact test: According to GJB1217A method 2004, apply half-sine wave impact, peak value 490m / s 2 , pulse width 6ms, six axial (±X / ±Y±Z) tests, 3 times in each direction, simulating the mechanical environment of the aerospace model during launch; S3: electrical signal monitoring and data feedback; The printed circuit board (210) leads out a signal, which is connected to an oscilloscope or a transient meter to monitor electrical continuity in real time; If a signal interruption is detected, an alarm is triggered and the test is suspended to avoid damage to the radio frequency electrical connector (100).

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