Elastic floating tolerance compensation method and connector for inter-module interconnection

Abstract

The present application relates to the technical field of module interconnection, and in particular to a flexible floating tolerance compensation method and connector for interconnection between modules, the compensation method comprising determining a cumulative deviation abnormal state of a module interconnection interface based on cumulative deviation vectors of all flexible floating connectors in an interconnection process; determining a key compensation target connector according to a comprehensive deviation vector of a single flexible floating connector; adjusting a preset state or interconnection sequence based on a distribution state of the key compensation target connector; adjusting a global interconnection strategy according to a deviation vector feature of the key compensation target connector, or adjusting interconnection pressure of an interconnection partition based on a gradient and distribution uniformity of a stress concentration coefficient of a stress distribution map, so as to complete docking of all flexible floating connectors. The flexible floating connector comprises a first outer conductor, a second outer conductor, an axial spring, a spacer and a spring piece. The present application improves assembly reliability in a large-scale interconnection scenario.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more particularly to a flexible floating tolerance compensation method and connector for interconnection between modules. Background Technology

[0002] In high-frequency signal transmission scenarios such as aerospace, satellite communications, and phased array radar, the demand for high-density interconnection between modules and between boards is becoming increasingly prominent. SMP connectors, with their miniaturized design, DC-40GHz wideband transmission capability, fast insertion and removal characteristics, and high shock resistance, have become the mainstream choice in this field, widely adapting to the needs of high-density blind mating and miniaturized equipment assembly. However, traditional SMP connectors have significant technical limitations. Their axial tolerance is only 1.17mm and their radial tolerance is ±0.25mm. When multiple channels are installed simultaneously, small processing errors in the coaxiality of PCB hole positions and the parallelism of modules will accumulate and amplify, causing male and female connectors to fail to interlock properly, thus interrupting RF signal transmission. Furthermore, their reliance on screws for rigid fixation results in low disassembly and assembly efficiency, easily damaging the PCB board. Repeated insertion and removal lead to severe wear of the inner and outer conductors, affecting the stability of electrical performance. Furthermore, the interface design of traditional SMP connectors makes it difficult to balance retention force, ease of installation and disassembly, and service life, further limiting their application in multi-channel, high-tolerance, and high-reliability interconnection scenarios. Therefore, there is an urgent need for a module interconnection tolerance compensation solution and corresponding connector that can expand the tolerance range, achieve flexible adaptation, and balance sealing performance and disassembly.

[0003] Chinese Patent Application Publication No. CN120914533A discloses a planar interconnect connector and integrated assembly, belonging to the field of adapters. The connector includes: a first plug-in assembly; the first plug-in assembly is mounted on a first housing; a second housing is disposed on the other side of the first housing, and a second plug-in assembly is mounted on the other end of the second housing; an adapter assembly is disposed inside the first housing and the second housing; an elastic element is sleeved on the outer side of the second housing, and the elastic element abuts against the first housing and the second plug-in assembly; during plug-in, the second housing extends into the inner side of the first housing, and the adapter assembly is compressed, causing the first plug-in assembly and the second plug-in assembly to move towards each other along the same axis. The second housing retracts into the inner side of the first housing, and the adapter assembly is compressed, forming a floating compression distance through the two plug-in structures, ensuring a compression stroke of 1mm in the axial direction, and achieving a large axial distance compression stroke while ensuring plug-in isolation.

[0004] Existing technologies also suffer from the following problems: In high-density, multi-channel board-to-board or module-to-module interconnects of modular electronic devices, traditional independent floating connectors, such as SMP connectors, while possessing certain individual axial and radial tolerance capabilities, exhibit unpredictable and uncoordinated cumulative effects due to individual installation deviations of each connector, module manufacturing tolerances, thermal deformation, and assembly stress when multiple connectors are installed in parallel. These cumulative axial and radial deviations often exceed the independent compensation limits of a single connector's floating structure, leading to excessive mechanical stress on some connectors, jamming, or poor contact, and in severe cases, even connector damage or failure of the entire interconnect interface. Existing technologies lack real-time monitoring and collaborative control mechanisms for the overall orientation of multi-connector systems, making it impossible to dynamically identify system-level deviations, accurately locate the root cause of problems, and implement globally optimized collaborative compensation during assembly. This results in low reliability in complex, high-precision, large-scale interconnect scenarios. Summary of the Invention

[0005] To address this, the present invention provides a flexible floating tolerance compensation method and connector for inter-module interconnection, which overcomes the problem in the prior art of lacking a real-time monitoring and collaborative control mechanism for the overall pose state of multi-connector systems, making it impossible to dynamically identify system-level deviations and accurately locate the root cause of problems during assembly, thus resulting in low assembly reliability in large-scale interconnection scenarios.

[0006] To achieve the above objectives, in one aspect, the present invention provides a method for elastic floating tolerance compensation for inter-module interconnection, comprising:

[0007] Interconnection between modules is achieved using several flexible floating connectors;

[0008] Based on the cumulative deviation vector of the axial and radial offset vectors of all elastic floating connectors during the interconnection process, the abnormal state of the cumulative deviation at the module interconnection interface is determined.

[0009] Based on the comprehensive deviation vector of a single elastic floating connector in the interface pose deviation distribution map of the elastic floating connector corresponding to the cumulative deviation abnormal state, at least one key compensation target connector is determined, wherein the key compensation target connector is an elastic floating connector whose contribution to the magnitude of the cumulative deviation vector exceeds a preset contribution.

[0010] Based on the distribution state of the key compensation target connectors, adjust the preset state or interconnection order of the elastic structure of the key compensation target connectors.

[0011] Based on the deviation vector characteristics of the key compensation target connector, adjust the global interconnection strategy, or obtain the stress distribution map of the module interconnection interface;

[0012] Based on the gradient and uniformity of the stress concentration factor in the stress distribution map, the interconnection pressure of the interconnection partition is adjusted.

[0013] The interconnection process continues according to the adjusted interconnection pressure to complete the docking of all flexible floating connectors.

[0014] Furthermore, the process of determining the cumulative deviation vector based on the axial and radial offset vectors of all flexible floating connectors during the interconnection process includes:

[0015] The axial offset vector and radial offset vector of each elastic floating connector are combined to obtain the comprehensive deviation vector of several elastic floating connectors;

[0016] The cumulative deviation vector is obtained by superimposing the combined deviation vectors of all flexible floating connectors into spatial vectors.

[0017] Furthermore, the process of determining the cumulative deviation anomaly state based on the cumulative deviation vector includes:

[0018] The magnitude of the cumulative deviation vector is compared with the preset magnitude;

[0019] The state of the module interconnection interface with a module length greater than the preset module length is determined as an abnormal state of cumulative deviation.

[0020] Furthermore, the process of determining at least one key compensation target connector based on the comprehensive deviation vector of a single elastic floating connector includes:

[0021] Calculate the contribution of the combined deviation vector of a single elastic floating connector to the magnitude of the cumulative deviation vector;

[0022] Compare the stated contribution level with the preset contribution level;

[0023] The elastic floating connector whose contribution is greater than the preset contribution is identified as the key compensation target connector.

[0024] Furthermore, the process of adjusting the preset state of the elastic structure of the elastic floating connector based on the spatial distribution of the key compensation target connector includes:

[0025] Determine the distribution status of several key compensation target connectors at the module interconnection interface;

[0026] Based on the determination that several key compensation target connectors are clustered in the module interconnection interface, the preset state of the elastic structure of the elastic floating connector located at the geometric center of the clustered area is adjusted first.

[0027] Furthermore, the process of adjusting the interconnection order of the flexible floating connectors based on the spatial distribution of the key compensation target connectors includes:

[0028] Determine the distribution status of several key compensation target connectors at the module interconnection interface;

[0029] Based on the determination that the key compensation target connectors are distributed in a dispersed manner in the module interconnection interface, the interconnection order is determined in descending order of the contribution of the elastic floating connectors, and the elastic floating connector with the largest contribution is guided to complete the interconnection first.

[0030] Furthermore, the process of adjusting the global interconnect strategy based on the deviation vector characteristics of the key compensation target connector includes:

[0031] The directional consistency of the comprehensive deviation vector of several key compensation target connectors is compared with the preset consistency.

[0032] Based on the determination result that the directional consistency is less than or equal to the first preset consistency, a global interconnection strategy of overall translation is adopted.

[0033] Based on the determination result that the directional consistency is greater than the first preset consistency and less than or equal to the second preset consistency, a global interconnection strategy of partition rotation is adopted.

[0034] Based on the determination result that the directional consistency is greater than the second preset consistency, the stress distribution diagram of the module interconnection interface is determined.

[0035] Furthermore, the directional consistency is the standard deviation of the cosine of the angle between the vector direction of a single critical compensation target connector and the average deviation vector direction of all critical compensation target connectors.

[0036] Furthermore, the process of adjusting the interconnection pressure of the interconnection partitions based on the gradient and distribution uniformity of the stress concentration factor includes:

[0037] The module interconnection interface is divided into several interconnection partitions;

[0038] Determine the stress concentration factor of a single interconnect partition, and determine the gradient of the stress concentration factor within the module interconnect interface;

[0039] If there is an interconnection partition where the stress concentration factor is greater than the preset stress concentration factor and the angle deviation between the gradient direction and the direction of the cumulative deviation vector is less than the preset angle, then it is determined that the interconnection pressure of the interconnection partition should be increased.

[0040] The adjustment amount of the interconnection pressure is positively correlated with the difference between the included angle deviation and the preset included angle.

[0041] On the other hand, the present invention also provides a flexible floating connector for interconnection between modules, comprising:

[0042] An outer conductor, used to form an electromagnetic shielding cavity, includes a first outer conductor and a second outer conductor;

[0043] An axial spring, which is sleeved on the outer surface of the second outer conductor, is used to provide axial tolerance compensation;

[0044] A spacer, which abuts against the end of the axial spring away from the first outer conductor, is used to isolate the axial spring and the spring sheet;

[0045] The spring, which is an elastic claw-shaped structure, abuts against the spacer and is sleeved on the outer surface of the second outer conductor to provide radial tolerance compensation.

[0046] Compared with the prior art, the beneficial effect of the present invention is that by monitoring the pose data of all elastic floating connectors in real time and calculating the cumulative deviation vector, the present invention can actively identify the abnormal state of the cumulative deviation of the module interconnection interface, thereby providing timely warning before the deviation exceeds the elastic compensation limit, realizing the prevention and control of the accumulation of small deviations into systemic failures from the source. Therefore, it effectively avoids connector jamming or contact failure caused by the accumulation of deviations, thereby improving the assembly reliability of large-scale interconnection scenarios.

[0047] Furthermore, this invention accurately identifies key compensation target connectors through interface pose deviation distribution maps and adjusts the preset state of the elastic structure or the interconnection sequence according to their spatial distribution. This allows for targeted intervention at local points that contribute the most to the overall deviation. The contribution-based precise compensation strategy avoids blind global adjustments, prioritizing the resolution of primary issues under limited resource conditions. It optimizes the synergy and efficiency of multi-channel interconnection, thereby significantly improving fault tolerance and first-time docking success rate in complex assemblies, and further enhancing assembly reliability in large-scale interconnection scenarios.

[0048] Furthermore, this invention combines stress distribution diagram analysis to determine the gradient and uniformity of stress concentration coefficients, and dynamically adjusts interconnection pressure or module relative posture accordingly. This enables real-time optimization of interface contact stress distribution, preventing plastic deformation or fatigue damage caused by local overload, ensuring the dual mechanical and electrical stability of the interconnection process, fundamentally guaranteeing structural integrity and signal transmission quality during long-term operation, thereby further improving the assembly reliability of large-scale interconnection scenarios. Attached Figure Description

[0049] Figure 1 This is a flowchart of an embodiment of the present invention for a flexible floating tolerance compensation method for inter-module interconnection;

[0050] Figure 2 This is a flowchart for determining the abnormal state of cumulative deviation in an embodiment of the present invention;

[0051] Figure 3 A flowchart for determining the key compensation target connector in an embodiment of the present invention;

[0052] Figure 4 This is a schematic diagram of the structure of the elastic floating connector used for inter-module interconnection according to an embodiment of the present invention;

[0053] In the diagram: 1. First outer conductor, 2. Axial spring, 3. Spacer, 4. Spring, 5. Second outer conductor. Detailed Implementation

[0054] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0055] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0056] It should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] Please see Figure 1 As shown, it is a flowchart of an embodiment of the present invention for an elastic floating tolerance compensation method for inter-module interconnection.

[0058] The present invention provides a method for compensating for elastic floating tolerance in inter-module interconnection, comprising:

[0059] Step S1: Interconnect modules using several flexible floating connectors;

[0060] Step S2: Based on the cumulative deviation vectors of the axial offset vector and the radial offset vector in the real-time pose data of all elastic floating connectors during the interconnection process, determine the abnormal state of the cumulative deviation of the module interconnection interface.

[0061] Step S3: Obtain the interface pose deviation distribution map of the elastic floating connector corresponding to the accumulated deviation abnormal state;

[0062] Step S4: Based on the deviation vector of each elastic floating connector pose point in the interface pose deviation distribution diagram, determine at least one key compensation target connector.

[0063] The key compensation target connector is an elastic floating connector whose contribution to the magnitude of the cumulative deviation vector exceeds a preset contribution.

[0064] Step S5: Based on the spatial distribution of the key compensation target connectors, adjust the preset state or interconnection order of the elastic structure of the key compensation target connectors.

[0065] Step S6: Adjust the global interconnect strategy according to the deviation vector characteristics of the key compensation target connector, or obtain the stress distribution map of the module interconnect interface;

[0066] Step S7: Based on the gradient and distribution uniformity of the stress concentration factor in the stress distribution map, adjust the interconnection pressure of the interconnection partition;

[0067] Step S8: Continue the interconnection process according to the adjusted interconnection pressure to complete the docking of all flexible floating connectors.

[0068] Specifically, the interface pose deviation distribution map is a visual chart formed by mapping the comprehensive deviation vector of each elastic floating connector to the physical spatial position of the module interconnection interface when the module interconnection interface is in an abnormal state of cumulative deviation, based on the global three-dimensional coordinate system.

[0069] Specifically, a high-speed industrial camera is used to acquire image information of the module interconnection process using flexible floating connectors. After preprocessing the image information such as filtering, denoising, and grayscale conversion, an image algorithm is used to capture several key feature points of the flexible floating connector in real time, such as several points where the outer conductor edge forms a cross, the engagement point of each spring and the PCB board channel, and several points on the inner conductor surface corresponding to the outer conductor edge, and the positional changes of several key feature points are determined.

[0070] The process of determining the axial offset vector is as follows: The Z-axis pixel coordinates of key feature points in the standard interconnection state of the connector are pre-calibrated. Based on the real-time captured image information, the change in the Z-axis pixel spacing of the corresponding key feature points is determined. For example, if the spacing increases / decreases by 0.5mm, the corresponding axial offset is 0.5mm. The direction is determined by the increase / decrease of the spacing. The output result is (0,0,Δz). For example, (0,0,0.5mm) indicates that the two modules are moving away and the axial spacing increases by 0.5mm, and (0,0,-0.5mm) indicates that the two modules are moving closer and the axial spacing decreases by 0.5mm.

[0071] The process of determining the radial offset vector is as follows: The real-time pixel position of the central axis of the elastic floating connector is extracted using an image algorithm and compared with the reference axis. The pixel offset in the X / Y axis direction is calculated by converting this position into actual physical displacement using camera calibration parameters. The radial offset direction is determined by the offset quadrant of the real-time axis relative to the reference axis. The output of the radial offset vector is (Δx, Δy, 0). For example, (0.12mm, 0.085mm, 0) corresponds to the radial offset in the first quadrant, (-0.12mm, 0.085mm, 0) corresponds to the radial offset in the second quadrant, (-0.12mm, -0.085mm, 0) corresponds to the radial offset in the third quadrant, and (0.12mm, -0.085mm, 0) corresponds to the radial offset in the fourth quadrant.

[0072] It is understandable that the determination process of the axial offset vector and the radial offset vector can be performed using existing machine vision and image algorithms, and will not be elaborated further.

[0073] Specifically, the process of determining the cumulative deviation vector based on the axial and radial offset vectors in the real-time pose data of all flexible floating connectors during the interconnection process includes:

[0074] The axial offset vector and radial offset vector of each elastic floating connector are combined to obtain the comprehensive deviation vector of several elastic floating connectors;

[0075] The cumulative deviation vector is obtained by superimposing the combined deviation vectors of all flexible floating connectors into spatial vectors.

[0076] Specifically, the comprehensive deviation vector is a three-dimensional spatial vector (X, Y, Z), which is formed by the direct superposition of the radial two-dimensional vector (X, Y, 0) and the axial one-dimensional vector (0, 0, Z). For example, the radial offset vector is (-0.12mm, 0.085mm, 0), and the corresponding axial offset vector is (0, 0, 0.5mm). Then the comprehensive deviation vector is (-0.12mm, 0.085mm, 0.5mm).

[0077] Specifically, the cumulative deviation vector is determined by superimposing the deviations of the corresponding axes of several composite deviation vectors with equal weights. For example, if the composite deviation vectors are (-0.12mm, 0.085mm, 0.5mm), (-0.13mm, 0.075mm, 0.3mm), and (-0.1mm, 0.065mm, 0.2mm), then the cumulative deviation vector is (-0.35mm, 0.225mm, 1mm).

[0078] It is understandable that the calculation of the comprehensive deviation vector and the cumulative deviation vector should be performed in a unified global three-dimensional coordinate system, such as a right-handed three-dimensional coordinate system.

[0079] Please see Figure 2 As shown, it is a flowchart for determining the abnormal state of cumulative deviation in an embodiment of the present invention.

[0080] Specifically, the process of determining the cumulative deviation anomaly state based on the cumulative deviation vector includes:

[0081] The magnitude of the cumulative deviation vector is compared with the preset magnitude;

[0082] The state of the module interconnection interface with a module length greater than the preset module length is determined as an abnormal state of cumulative deviation.

[0083] The state of the module interconnection interface with a module length less than or equal to the preset module length is determined as the state of normal cumulative deviation.

[0084] Specifically, the magnitudes of both the combined deviation vector and the cumulative deviation vector are calculated using the formula... Perform the calculation.

[0085] Specifically, the preset mold length is set to a range of [2.5mm, 4mm], and in this embodiment of the invention, 3mm is preferred.

[0086] Specifically, the module interconnect interface is the key carrier for the core functions of the flexible floating connector. It integrates three core functions: high-frequency signal transmission, module mechanical fixation, and extreme environment sealing protection. It directly determines the signal integrity, structural stability, and environmental adaptability of the entire interconnect system. Especially in multi-channel, high-density interconnect scenarios such as aerospace, phased array radar, and deep-sea exploration, even minor anomalies in the interface state can trigger system-level failures. Although the flexible floating connector has a certain tolerance compensation capability through the elastic deformation of axial springs and radial springs, in multi-channel deployments, factors such as PCB hole processing errors and module installation parallelism deviations can cause small deviations in a single channel to accumulate through mechanical constraints and spatial directional superposition. If this accumulation of deviations is not addressed in time, it will gradually exceed the elastic deformation compensation limit of the connector, leading to abnormal interface states. Therefore, proactively determining the normal and abnormal states of the module interconnect interface is crucial for building a proactive prevention and control system, replacing the passive mode of traditional post-fault repair. This prevents small deviations from accumulating into irreversible major failures from the source, ultimately ensuring the stability, operational safety, and component durability of the interconnect system throughout its entire lifecycle. The module length is a comprehensive quantitative indicator of three-dimensional offset, and the cumulative deviation vector is the spatial vector of the XYZ axes. The module length can cover the superimposed deviations of radial and axial directions at once, without the need to judge whether the X, Y, and Z axes are abnormal separately. This avoids the risk of missing the overall deviation when the single axis is qualified but the overall deviation is out of tolerance. For example, if the X and Y axes are not out of tolerance, but the overall offset exceeds the compensation capability of the connector after superposition, the module length is a single value. There is no need for complex spatial direction analysis. The interface status can be quickly determined by comparing it with the preset module length. The module length can reflect the real impact of multi-channel superposition. The core problem of multi-channel interconnection is the accumulation of individual deviations. The module length directly quantifies the cumulative effect. Small deviations in a single channel may be harmless, but if the module length exceeds the tolerance after multi-channel superposition, it will directly cause the elastic structure of the connector to be unable to compensate. At this time, it must be judged as abnormal to avoid misjudging the overall situation based on the single-channel status.

[0087] Please see Figure 3 As shown, it is a flowchart for determining the key compensation target connector in an embodiment of the present invention.

[0088] Specifically, the process of determining at least one key compensation target connector based on the combined deviation vector of a single flexible floating connector includes:

[0089] Calculate the contribution of the combined deviation vector of a single elastic floating connector to the magnitude of the cumulative deviation vector;

[0090] Compare the stated contribution level with the preset contribution level;

[0091] The elastic floating connector whose contribution is greater than the preset contribution is identified as the key compensation target connector;

[0092] Elastic floating connectors whose contribution is less than or equal to the preset contribution are identified as non-critical compensation target connectors.

[0093] Specifically, the contribution rate is the percentage of the projection length of a single composite deviation vector in the direction of the cumulative deviation vector to the sum of all projection lengths. The preset contribution rate range is set to [10%, 20%], and 15% is preferred in this embodiment of the invention.

[0094] Specifically, the process of adjusting the preset state of the elastic structure of the elastic floating connector or adjusting the interconnection order of the elastic floating connector based on the distribution state of the key compensation target connector includes:

[0095] Determine the distribution status of several key compensation target connectors at the module interconnection interface;

[0096] Based on the determination that several key compensation target connectors are clustered in the module interconnection interface, the preset state of the elastic structure of the elastic floating connector located at the geometric center of the clustered area is adjusted first.

[0097] Based on the determination that the key compensation target connectors are distributed in a dispersed manner in the module interconnection interface, the interconnection order is determined in descending order of the contribution of the elastic floating connectors, and the elastic floating connector with the largest contribution is guided to complete the interconnection first.

[0098] Specifically, the process of determining the distribution state of the key compensation target connectors in the module interconnection interface includes:

[0099] Determine the positions of several key compensation target connectors in the interface pose deviation distribution map;

[0100] The interface pose deviation distribution map is divided into several regions with equal area, and the number of key compensation target connectors in a single region is determined.

[0101] A number of coefficients of variation are determined as the distribution coefficients of several key compensation target connectors;

[0102] Based on the comparison results where the distribution coefficient is greater than the preset coefficient, it is determined that several of the key compensation target connectors are clustered in the module interconnection interface;

[0103] Based on the comparison results of the distribution coefficient being less than or equal to the preset coefficient, it is determined that several key compensation target connectors are distributed in a dispersed manner in the module interconnection interface.

[0104] Specifically, the preset coefficient is set to a value range of [0.2, 0.4], and in this embodiment of the invention, 0.3 is preferred.

[0105] Understandably, the distribution coefficient is used to quantify the degree of imbalance in the number of key compensation target connectors in different regions. The core difference between clustering and dispersion lies precisely in the balance of quantity distribution. Clustering occurs when a large number of key connectors are concentrated in a few regions, indicating imbalance, while dispersion occurs when the number of key connectors in different regions is close, indicating balance. Therefore, a small distribution coefficient indicates that the key compensation target connectors are dispersed in the module interconnection interface, while a large distribution coefficient indicates that the key compensation target connectors are clustered in the module interconnection interface.

[0106] Specifically, the adjustment process of the preset state of the elastic structure of the flexible floating connector is determined based on its axial and radial deviations. The initial preload of the axial spring is adjusted according to the axial deviation, and the initial radial tension of the spring is adjusted according to the radial deviation. A table is pre-set to adjust the initial preload of the axial spring according to the axial deviation and the initial radial tension of the spring according to the radial deviation. The adjustment value and direction can be obtained by looking up the table based on the axial and radial deviations.

[0107] Specifically, the process of adjusting the global interconnect strategy based on the deviation vector characteristics of the key compensation target connector includes:

[0108] The directional consistency of the comprehensive deviation vector of several key compensation target connectors is compared with the preset consistency.

[0109] Based on the determination result that the directional consistency is less than or equal to the first preset consistency, a global interconnection strategy of overall translation is adopted.

[0110] Based on the determination result that the directional consistency is greater than the first preset consistency and less than or equal to the second preset consistency, a global interconnection strategy of partition rotation is adopted.

[0111] Based on the determination result that the directional consistency is greater than the second preset consistency, the stress distribution diagram of the module interconnection interface is determined.

[0112] Specifically, the directional consistency is the standard deviation of the cosine of the angle between the vector direction of a single critical compensation target connector and the average deviation vector direction of all critical compensation target connectors.

[0113] Specifically, the first preset consistency is 0.15, the second preset consistency is 0.3, and the smaller the directional consistency, the better the directional consistency of each key compensation target connector.

[0114] Specifically, the process of adjusting the interconnection pressure of interconnection zones based on the gradient and uniformity of stress concentration factors includes:

[0115] The module interconnection interface is divided into several interconnection partitions;

[0116] Determine the stress concentration factor of a single interconnect partition, and determine the gradient of the stress concentration factor within the module interconnect interface;

[0117] If there is an interconnection partition where the stress concentration factor is greater than the preset stress concentration factor and the angle deviation between the gradient direction and the direction of the cumulative deviation vector is less than the preset angle, then it is determined to reduce the interconnection pressure of the interconnection partition.

[0118] The adjustment amount of the interconnection pressure is positively correlated with the difference between the included angle deviation and the preset included angle.

[0119] Specifically, stress distribution maps can be obtained using ultrasonic elastography. High-frequency ultrasound waves of 10-50 MHz are emitted towards the module interconnect interface. Based on the correlation between ultrasonic wave propagation speed and stress (the greater the stress, the faster the sound speed), the internal stress distribution of the module interconnect interface can be reconstructed. The stress concentration factor refers to the ratio of the actual maximum stress at a single location on the module interconnect interface to the stress threshold at that location; the larger the ratio, the more pronounced the stress concentration.

[0120] Specifically, the preset stress concentration factor is set to [1.5, 3], and the preferred embodiment of the present invention is 2.

[0121] Specifically, the process of determining the gradient of the stress concentration factor includes:

[0122] Using a global three-dimensional coordinate system, the module interconnection interface is divided into several interconnection partitions with equal area;

[0123] Based on the stress distribution map, the stress concentration coefficient of a single interconnection partition is extracted to obtain a stress concentration coefficient matrix;

[0124] The stress concentration factor matrix is ​​converted into a continuous spatial distribution function of stress concentration factors using bilinear interpolation.

[0125] The gradient is a vector composed of the partial derivatives in the X-axis and Y-axis directions, and the gradient direction is the calculated result of the arctangent second-order function.

[0126] It is understandable that the first parameter of the arctangent second-order function is the partial derivative of the stress concentration coefficient with respect to the Y-axis, and the second parameter is the partial derivative of the stress concentration coefficient with respect to the X-axis. The final result is the angle between the gradient direction and the positive X-axis, which ranges from 0 degrees to 360 degrees. This angle directly reflects the direction in which the stress concentration coefficient changes the fastest within the module interconnection interface. This is existing technology and will not be elaborated further.

[0127] Specifically, the preset included angle is set to a range of [15°, 35°], and in this embodiment of the invention, 25° is preferred.

[0128] Specifically, the process of reducing the interconnection pressure on interconnect partitions includes:

[0129] Compare the angle difference between the preset angle and the angle deviation with the preset difference;

[0130] Based on the comparison result that the included angle difference is greater than the preset difference, the initial preload of the axial spring is reduced by the first pressure adjustment coefficient.

[0131] Based on the comparison result that the included angle difference is less than or equal to the preset difference, the initial preload of the axial spring is reduced by the second pressure adjustment coefficient.

[0132] Specifically, the preset difference range is set to [5°, 8°], preferably 6° in this embodiment of the invention; the first pressure adjustment coefficient range is set to [0.89, 0.93], preferably 0.9 in this embodiment of the invention; and the second pressure adjustment coefficient range is set to [0.94, 0.97], preferably 0.96 in this embodiment of the invention.

[0133] Specifically, stress concentration in interconnected zones is caused by excessive concentration of local contact pressure due to accumulated deviations. Reducing the interconnection pressure in this zone can reduce the local force per unit area, promote the reverse deformation of the elastic structure to expand the effective contact area, thereby dispersing the overload stress and allowing the stress concentration factor to return to a safe range.

[0134] Please see Figure 4 As shown, it is a structural schematic diagram of an elastic floating connector used for inter-module interconnection in an embodiment of the present invention.

[0135] This invention provides an embodiment of a flexible floating connector for inter-module interconnection, comprising:

[0136] The outer conductor, which forms the electromagnetic shielding cavity, includes a first outer conductor 1 and a second outer conductor 5;

[0137] An axial spring 2 is sleeved on the outer surface of the second outer conductor 5 to provide axial tolerance compensation;

[0138] The spacer 3 abuts against the end of the axial spring away from the first outer conductor 1 to isolate the axial spring 2 and the spring 4;

[0139] The spring 4, which is an elastic claw-shaped structure, abuts against the spacer 3 and is sleeved on the outer surface of the second outer conductor 5 to provide radial tolerance compensation.

[0140] Specifically, the spring 4 can be made of beryllium copper with an elastic modulus of 130 GPa, and the axial spring 2 can be made of piano wire with a wire diameter of 0.5 mm. The specifics are not limited.

[0141] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A method for elastic floating tolerance compensation for inter-module interconnection, characterized in that, include: Interconnection between modules is achieved using several flexible floating connectors; Based on the cumulative deviation vector of the axial and radial offset vectors of all elastic floating connectors during the interconnection process, the abnormal state of the cumulative deviation at the module interconnection interface is determined. Based on the comprehensive deviation vector of a single elastic floating connector in the interface pose deviation distribution map of the elastic floating connector corresponding to the cumulative deviation abnormal state, at least one key compensation target connector is determined, wherein the key compensation target connector is an elastic floating connector whose contribution to the magnitude of the cumulative deviation vector exceeds a preset contribution. Based on the distribution state of the key compensation target connectors, adjust the preset state or interconnection order of the elastic structure of the key compensation target connectors. Based on the deviation vector characteristics of the key compensation target connector, adjust the global interconnection strategy, or obtain the stress distribution map of the module interconnection interface; Based on the gradient and uniformity of the stress concentration factor in the stress distribution map, the interconnection pressure of the interconnection partition is adjusted. The interconnection process continues according to the adjusted interconnection pressure to complete the docking of all flexible floating connectors.

2. The elastic floating tolerance compensation method for inter-module interconnection according to claim 1, characterized in that, The process of determining the cumulative deviation vector based on the axial and radial offset vectors of all flexible floating connectors during the interconnection process includes: The axial offset vector and radial offset vector of each elastic floating connector are combined to obtain the comprehensive deviation vector of several elastic floating connectors; The cumulative deviation vector is obtained by superimposing the combined deviation vectors of all flexible floating connectors into spatial vectors.

3. The elastic floating tolerance compensation method for inter-module interconnection according to claim 2, characterized in that, The process of determining the cumulative deviation anomaly state based on the cumulative deviation vector includes: The magnitude of the cumulative deviation vector is compared with the preset magnitude; The state of the module interconnection interface with a module length greater than the preset module length is determined as an abnormal state of cumulative deviation.

4. The elastic floating tolerance compensation method for inter-module interconnection according to claim 3, characterized in that, The process of determining at least one critical compensation target connector based on the combined deviation vector of a single flexible floating connector includes: Calculate the contribution of the combined deviation vector of a single elastic floating connector to the magnitude of the cumulative deviation vector; Compare the stated contribution level with the preset contribution level; The elastic floating connector whose contribution is greater than the preset contribution is identified as the key compensation target connector.

5. The elastic floating tolerance compensation method for inter-module interconnection according to claim 4, characterized in that, Based on the spatial distribution of the key compensation target connectors, the process of adjusting the preset state of the elastic structure of the elastic floating connector includes: Determine the distribution status of several key compensation target connectors at the module interconnection interface; Based on the determination that several key compensation target connectors are clustered in the module interconnection interface, the preset state of the elastic structure of the elastic floating connector located at the geometric center of the clustered area is adjusted first.

6. The elastic floating tolerance compensation method for inter-module interconnection according to claim 5, characterized in that, Based on the spatial distribution of the key compensation target connectors, the process of adjusting the interconnection order of the flexible floating connectors includes: Determine the distribution status of several key compensation target connectors at the module interconnection interface; Based on the determination that the key compensation target connectors are distributed in a dispersed manner in the module interconnection interface, the interconnection order is determined in descending order of the contribution of the elastic floating connectors, and the elastic floating connector with the largest contribution is guided to complete the interconnection first.

7. The elastic floating tolerance compensation method for inter-module interconnection according to claim 6, characterized in that, The process of adjusting the global interconnect strategy based on the deviation vector characteristics of the key compensation target connector includes: The directional consistency of the comprehensive deviation vector of several key compensation target connectors is compared with the preset consistency. Based on the determination result that the directional consistency is less than or equal to the first preset consistency, a global interconnection strategy of overall translation is adopted. Based on the determination result that the directional consistency is greater than the first preset consistency and less than or equal to the second preset consistency, a global interconnection strategy of partition rotation is adopted. Based on the determination result that the directional consistency is greater than the second preset consistency, the stress distribution diagram of the module interconnection interface is determined.

8. The elastic floating tolerance compensation method for inter-module interconnection according to claim 7, characterized in that, The directional consistency is the standard deviation of the cosine of the angle between the vector direction of a single critical compensation target connector and the average deviation vector direction of all critical compensation target connectors.

9. The elastic floating tolerance compensation method for inter-module interconnection according to claim 8, characterized in that, The process of adjusting the interconnection pressure of interconnection partitions based on the gradient and uniformity of stress concentration factors includes: The module interconnection interface is divided into several interconnection partitions; Determine the stress concentration factor of a single interconnect partition, and determine the gradient of the stress concentration factor within the module interconnect interface; If there is an interconnection partition where the stress concentration factor is greater than the preset stress concentration factor and the angle deviation between the gradient direction and the direction of the cumulative deviation vector is less than the preset angle, then it is determined to reduce the interconnection pressure of the interconnection partition. The adjustment amount of the interconnection pressure is positively correlated with the difference between the included angle deviation and the preset included angle.

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