High-vibration-resistant blind hole fisheye structure

Abstract

The invention discloses a high-vibration-resistant blind hole fisheye structure, and relates to the technical field of connectors, the high-vibration-resistant blind hole fisheye structure comprises a fisheye terminal, the fisheye terminal is provided with an insertion part, a shoulder part, a rod part and a tail part, and the insertion part, the shoulder part, the rod part and the tail part are sequentially arranged in a linear crimping manner along a single direction; wherein the insertion part is sequentially composed of a pre-insertion area, an insertion area, a transition area, a mechanical holding area and a fisheye strength area, the pre-insertion area is used for providing a guiding effect to insert the PCB, the insertion area forms an acting force, the transition area is used for connecting the insertion area and the mechanical holding area, the mechanical holding area forms an anti-vibration effect, and the fisheye strength area is used for providing terminal strength. The insertion area, the transition area and the mechanical holding area form a fisheye groove with an anti-vibration effect; guide grooves are formed in the inner walls of the fisheye grooves, and elastic supporting assemblies for keeping the distance between every two adjacent guide grooves are arranged between the adjacent guide grooves. According to the invention, the blind hole fisheye structure has good guidance quality, forms retention, insertion and anti-vibration acting forces, and is suitable for a high-vibration environment.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a blind hole fisheye structure resistant to high vibration. Background Technology

[0002] With the continuous development of the automotive and low-altitude economy sectors, especially the rise of new energy vehicles and flying cars, the demand for current transmission within various modules is increasing. In these fields, connectors, as key components for current transmission and electrical connection, directly affect the stability and reliability of the entire system. High-quality connectors ensure stable connections between components, guaranteeing normal system operation, and are of great significance for the safety performance of automobiles and the flight safety of flying cars.

[0003] In traditional connection methods, to achieve high current transmission between wires and boards, pins are often soldered to the PCB at both ends, or one end is soldered to the PCB and the other end is connected to the female terminal wire harness. With the increasing application of Pressfit (crimp-fit ​​connection), two commonly used methods are through-hole fisheye and pierced blind-hole fisheye. These methods meet some connection requirements to a certain extent.

[0004] However, these existing connection methods have obvious drawbacks. Traditional soldering methods face significant challenges to reliability in high-vibration environments. The currently used piercing blind hole fisheye not only has poor vibration resistance, affecting the stability of the connection between the fisheye terminal and the PCB, but also has complex processes and high costs, failing to meet current requirements for connector vibration resistance and cost reduction. Summary of the Invention

[0005] To address the issues of poor vibration resistance of blind hole fisheyes, which affect the stability of the connection with the PCB board, high cost, and difficulty in meeting current vibration resistance requirements, this application provides a blind hole fisheye structure that is resistant to high vibration.

[0006] The blind hole fisheye structure resistant to high vibration provided in this application adopts the following technical solution: The application discloses a high-vibration-resistant blind-hole fish-eye structure, which comprises a fish-eye terminal, wherein the fish-eye terminal has an insertion part, a shoulder part, a rod part and a tail part which are linearly and elastically crimped in sequence along a single direction; the insertion part is sequentially composed of a pre-insertion area, an insertion area, a transition area, a mechanical holding area and a fish-eye strength area; the pre-insertion area is used for providing a guiding effect to insert a PCB board; the insertion area forms an acting force; the transition area is used for connecting the insertion area and the mechanical holding area; the mechanical holding area forms an anti-vibration effect; and the fish-eye strength area is used for providing terminal strength; the insertion area, the transition area and the mechanical holding area form a fish-eye groove which has an anti-vibration effect; a guide groove is arranged on the inner wall of the fish-eye groove; and an elastic supporting assembly which controls the distance between the two mechanical holding areas is arranged between adjacent guide grooves.

[0007] By adopting the technical scheme, the insertion part, the shoulder part, the rod part and the tail part of the fish-eye terminal are linearly and elastically crimped in sequence along a single direction, so that the fish-eye terminal is convenient to connect with the PCB board; the pre-insertion area of the insertion part can provide a guiding effect to conveniently insert the PCB board; the insertion area can form an acting force; the transition area can connect the insertion area and the mechanical holding area; the mechanical holding area can form an anti-vibration effect; the fish-eye strength area can provide terminal strength; the fish-eye groove formed by the insertion area, the transition area and the mechanical holding area can have an anti-vibration effect, so that the structural strength and elasticity of the fish-eye terminal are improved, the mechanical performance and electrical performance of the fish-eye terminal on the PCB board are increased, the product feasibility and reliability are improved, the elastic supporting assembly can improve the stability of the mutual connection between the mechanical holding area and the PCB board, long-term stability is ensured, the service life is prolonged, the contact stability is ensured, and large resistance is avoided.

[0008] Optionally, the elastic supporting assembly comprises a connecting block sliding in the guide groove, a supporting frame installed between adjacent connecting blocks, an embedded ball installed on the end face of the connecting block and a clamping ball installed on the side face of the connecting block; the clamping ball and the embedded ball are installed in a movable groove arranged in the connecting block; the embedded ball and the clamping ball abut against each other; the clamping ball abuts against the embedded ball; the embedded ball is clamped in a limiting groove arranged in the inner wall of the guide groove; the embedded ball abuts against the clamping ball; and the embedded ball and the limiting groove form a spacing.

[0009] By adopting the technical scheme, the guide groove is used for stabilizing the elastic supporting assembly; the supporting frame is moved in the fish-eye groove by sliding between the connecting block and the guide groove; the supporting frame is fixed in different positions by the abutting effect of the clamping ball and the embedded ball, so that the fish-eye groove is kept in force area, the position of the supporting frame is flexibly and properly adjusted, and the stability and reliability are improved; when the supporting frame is clamped on the clamping ball, the supporting frame has a certain elastic force, the supporting frame is in an extended state, the clamping ball abuts against the embedded ball, the embedded ball is limited in the limiting groove, and positioning and fixing are realized; when the supporting frame is in a contracted state, the spacing between the embedded ball and the limiting groove is convenient for the sliding of the connecting block in the guide groove, so that the position of the supporting frame and the connecting block in the fish-eye groove is adjusted.

[0010] Optionally, the fisheye groove is composed of connecting walls, side walls, a bottom wall and a rear end wall, the distance between adjacent connecting walls increases in a gradient, adjacent side walls are arranged at a uniform distance, the side edges of the bottom wall are connected to the side walls on both sides, and the rear end wall is connected to the extension ends of the side walls on both sides.

[0011] By adopting the above technical solution, the strength and elasticity of the fisheye terminal are increased, the vibration resistance of the fisheye terminal on the PCB is enhanced, the mechanical and electrical properties of the fisheye terminal on the PCB are increased, the product feasibility and reliability are improved, the pre-insertion area can provide a guiding effect for insertion into the PCB, the insertion area forms a force, the transition area connects the insertion area and the mechanical retention area, the mechanical retention area forms an anti-vibration effect, and the fisheye strength area provides terminal strength. The fisheye groove formed by the insertion area, the transition area and the mechanical retention area has an anti-vibration effect.

[0012] Optionally, the included angle between adjacent side walls is 60°-90°.

[0013] By adopting the above technical solution, the angle formed by the side walls optimizes the fisheye groove structure, improves the structural strength and elasticity of the fisheye terminal, enhances the vibration resistance of the fisheye terminal on the PCB, and meets the high vibration V3 level of the automobile connector standard SAE / USCAR-2-2020.

[0014] Optionally, the outer surface of the insertion part is formed with a fin-shaped convex edge, the two ends of the fin-shaped convex edge are in a slope structure, the middle is in a planar structure, and the cross section of the insertion part is in a bowl shape.

[0015] By adopting the above technical solution, the outer surface of the insertion part is formed with a fin-shaped convex edge with a slope structure at both ends and a planar structure in the middle, and the cross section of the insertion part is in a bowl shape. Such a structure can make the fisheye terminal have stronger vibration resistance on the PCB, meet the high vibration V3 level of the automobile connector standard SAE / USCAR-2-2020, and the fin-shaped convex edge can further optimize the performance of the insertion part when inserting into the PCB. The bowl-shaped cross-sectional structure helps to enhance the structural strength and elasticity.

[0016] Optionally, the side surface of the shoulder part extends outwardly with a rectangular protrusion, and the distance between the outer surfaces of adjacent rectangular protrusions is greater than the cross-sectional distance of the insertion part.

[0017] By adopting the above technical solution, the structural strength and elasticity of the fisheye terminal can be enhanced, the mechanical properties of the fisheye terminal on the PCB are increased, the fisheye terminal has stronger vibration resistance on the PCB, and the product feasibility and reliability are improved.

[0018] Optionally, the end surface slope of the insertion part is smaller than the end surface slope of the tail part.

[0019] By adopting the technical scheme, the end surface slope of the insertion part is smaller than the end surface slope of the tail part, the performance of the fish-eye terminal inserted into the PCB is optimized, the mechanical performance and vibration resistance of the fish-eye terminal on the PCB are further improved, and the product feasibility and reliability are enhanced.

[0020] Optionally, the intervals of the insertion region, the transition region and the mechanical retention region increase in sequence.

[0021] By adopting the technical scheme, the structure strength and elasticity of the fish-eye groove are increased, the vibration resistance of the fish-eye terminal on the PCB is enhanced, the product feasibility and reliability are improved, and the automobile connector standard SAE / USCAR-2-2020 high vibration V3 level is met.

[0022] Optionally, the transverse section of the insertion part is any one of a conical shape, a saddle shape and an elliptical shape.

[0023] By adopting the technical scheme, the insertion part of different shapes can adapt to different PCBs.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The pre-insertion region of the insertion part can provide a guiding effect when inserted into the PCB, the insertion region, the transition region and the mechanical retention region form the fish-eye groove with vibration resistance, the vibration resistance of the fish-eye terminal on the PCB is enhanced, and the automobile connector standard SAE / USCAR-2-2020 high vibration V3 level is met. 2. The blind hole fish-eye structure is improved, a non-piercing stamping is adopted, the structure is realized by precise cutting stamping, the structure strength and elasticity are increased, and the product feasibility and reliability are improved. 3. The problems of poor reliability of the traditional welding method in a high vibration environment, poor vibration resistance of the existing piercing blind hole fish-eye, complex process and high cost are solved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a schematic diagram of the overall structure of the present application.

[0027] Figure 2 is a schematic diagram of the structure of the insertion part of the present application.

[0028] Figure 3 is a schematic diagram of the overall structure of the present application from the back perspective.

[0029] Figure 4 is a partial structural schematic diagram of the fish-eye slot part of the present application.

[0030] Figure 5 is a structural schematic diagram of the elastic support assembly of the present application.

[0031] Figure 6 is a cross-sectional view of the mechanical retention area of the present application.

[0032] Figure 7 is an enlarged view of A of the present application. Figure 6

[0033] Figure 8 is a test frequency spectrum diagram of random vibration of the present application.

[0034] Figure 9 is a test frequency spectrum diagram of sinusoidal vibration of the present application.

[0035] Reference signs: 1, fish-eye terminal; 11, insertion part; 12, shoulder part; 13, rod part; 14, tail part; 110, pre-insertion area; 111, insertion area; 112, transition area; 113, mechanical retention area; 114, fish-eye strength area; 115, fish-eye slot; 1151, connecting wall; 1152, side wall; 1153, rear end wall; 1154, bottom wall; 2, fin-shaped flange; 3, elastic support assembly; 4, guide slot; 31, connecting block; 32, support frame; 33, embedded ball; 34, clamping ball. DETAILED DESCRIPTION

[0036] The present application will be further described below in conjunction with the accompanying drawings. Figures 1-9 A further detailed description of the present application is provided.

[0037] The embodiment of the present application discloses a high-vibration-resistant blind-hole fish-eye structure.

[0038] Referring to Figure 1 , the fish-eye terminal 1 is provided, which has an insertion part 11, a shoulder part 12, a rod part 13 and a tail part 14, which are linearly crimped in sequence along a single direction, so that the fish-eye terminal 1 can be smoothly crimped with the PCB board, ensuring the stability and reliability of the connection. Such linear crimping arrangement can reduce the resistance and deviation during connection, and improve the precision and efficiency of connection.

[0039] Referring to Figure 2 ​As shown, the insertion part 11 is composed of a pre-insertion area 110, an insertion area 111, a transition area 112, a mechanical retention area 113 and a fish-eye strength area 114 in sequence. The pre-insertion area 110 is used to provide a guiding effect for inserting the PCB board, and the pre-insertion area 110 is usually in a relatively smooth shape, such as a conical shape, and the material thereof can be selected from a metal material with certain hardness and smoothness, such as a copper alloy, so as to reduce the frictional resistance during insertion and facilitate accurate insertion into the crimping hole of the PCB board. The pre-insertion area 110 can also adopt other similar alternative shapes, such as a circular truncated cone, etc. The insertion area 111 forms an acting force, and the surface of the insertion area 111 can be designed to have a certain roughness to increase the friction force with the crimping hole of the PCB board, and the material thereof can also be a copper alloy, or other materials such as stainless steel can be selected according to actual needs. The insertion area 111 can also be provided with some protrusions or lines to enhance the acting force. The transition area 112 is used to connect the insertion area 111 and the mechanical retention area 113, and the shape of the transition area 112 is usually gradually transitioned, such as gradually transitioning from the shape of the insertion area 111 to the shape of the mechanical retention area 113, and the material thereof is consistent with the insertion area 111 and the mechanical retention area 113 to ensure the overall performance. The transition area 112 functions to make the insertion process more stable and avoid unstable connection due to sudden shape changes. The mechanical retention area 113 forms an anti-vibration effect, and the mechanical retention area 113 tightly clamps the crimping hole of the PCB board through its elastic structure, thereby maintaining stable connection in a vibrating environment. The fish-eye strength area 114 is used to provide terminal strength, and the fish-eye strength area 114 can adopt a relatively thick material or a special reinforcing structure, such as a reinforcing rib, etc., and the presence of the fish-eye strength area 114 ensures that the fish-eye terminal 1 will not easily deform or be damaged when subjected to external force; the insertion area 111, the transition area 112 and the mechanical retention area 113 form a fish-eye groove 115 with an anti-vibration effect, and the inner wall of the fish-eye groove 115 is provided with a guide groove 4, and the adjacent guide grooves 4 are provided with an elastic support assembly 3 for controlling the distance between the two mechanical retention areas 113.

[0040] Referring to Figure 5 , Figure 6 and Figure 7As shown, the elastic support assembly 3 comprises a connecting block 31 sliding in a guide groove 4, a support frame 32 installed between adjacent connecting blocks 31, an embedded ball 33 installed on the end face of the connecting block 31, and a clamping ball 34 installed on the side face of the connecting block 31. The support frame 32 is symmetrically shaped, the side edges of the two wings are arc-shaped edges tangent to the inner wall of the fisheye groove 115, and the middle connecting rods are hingedly connected to each other. The clamping ball 34 and the embedded ball 33 are both installed in the movable groove in the connecting block 31, the embedded ball 33 and the clamping ball 34 abut each other, the clamping ball 34 abuts the embedded ball 33, the embedded ball 33 is clamped in the limiting groove in the inner wall of the guide groove 4, the limiting groove is arc-shaped, the embedded ball 33 abuts the clamping ball 34, and the embedded ball 33 and the limiting groove form a gap. The guide groove 4 is arranged on both sides of the fisheye groove 115, the connecting block 31 forms a movable groove, the clamping ball 34 and the embedded ball 33 are both movable in the movable groove, under normal circumstances, the embedded ball 33 is squeezed by gravity towards the clamping ball 34, so that the embedded ball 33 and the limiting groove in the inner wall of the guide groove 4 form a gap, facilitating the movement of the connecting block 31 and the support frame 32 together. The support frame 32 is connected to the clamping ball 34, when the clamping ball 34 squeezes the embedded ball 33, the embedded ball 33 abuts the inner wall of the limiting groove, thereby keeping the position of the support frame 32 in the fisheye groove 115 fixed, and the support frame 32 is used to facilitate the mechanical retention area 113 to generate a retaining force.

[0041] Referring to Figure 4As shown, the fisheye groove 115 consists of a connecting wall 1151, side walls 1152, a bottom wall 1154, and a rear end wall 1153. The spacing between adjacent connecting walls 1151 increases gradually. This gradient design allows the fisheye groove 115 to gradually adapt to the shape of the PCB board crimping hole during the crimping process, enhancing the stability of the connection. The connecting wall 1151 can be made of copper alloy, and its surface can be treated with tin plating or other methods to improve conductivity and corrosion resistance. The connecting wall 1151 can also be made of other materials with good conductivity and mechanical properties. Adjacent side walls 1152 are evenly spaced. The uniform spacing of the side walls 1152 ensures the structural symmetry of the fisheye groove 115 and improves the overall performance of the fisheye terminal 1. The side walls 1152 are made of the same material as the connecting walls 1151, and their thickness and shape can be adjusted according to actual needs. The side walls 1152 can also be strengthened by setting some reinforcing structures. The bottom wall 1154 is connected to the side walls 1152 on both sides. The bottom wall 1154 supports the structure of the fisheye groove 115, and its material is the same as that of the side walls 1152 and the connecting wall 1151. The surface of the bottom wall 1154 can be flat, or it can have grooves or protrusions as needed to increase the contact area with the PCB board. The rear end wall 1153 is connected to the extended ends of the side walls 1152 on both sides. The rear end wall 1153 seals the fisheye groove 115, preventing impurities from entering the fisheye groove 115 and affecting the connection performance. The material of the rear end wall 1153 is the same as that of the side walls 1152, and its thickness and shape can be adjusted according to the overall design of the fisheye groove 115.

[0042] See Figure 4 As shown, the included angle between adjacent sidewalls 1152 is 60° to 90°. For example, a 90° included angle design can give the fisheye groove 115 better structural stability and mechanical properties. During the crimping process, the 90° included angle can make the fisheye groove 115 better fit with the PCB board crimping hole, enhancing its vibration resistance.

[0043] See Figure 3 As shown, the outer surface of the insertion part 11 has a fin-shaped protrusion 2. The two ends of the fin-shaped protrusion 2 are sloping, and the middle is flat. The cross-section of the insertion part 11 is bowl-shaped. The sloping structure of the fin-shaped protrusion 2 can guide the insertion process and reduce insertion resistance. The flat structure in the middle can increase the contact area with the PCB board crimping hole and improve the stability of the connection. The material of the fin-shaped protrusion 2 is the same as the main body material of the insertion part 11, and its height and width can be adjusted according to actual needs. The bowl-shaped cross-section design of the insertion part 11 can better adapt to the shape of the PCB board crimping hole and enhance the tightness of the connection.

[0044] See Figure 1As shown, the side of the shoulder 12 extends outwardly with rectangular protrusions, the interval between the outer surfaces of adjacent rectangular protrusions is greater than the cross-sectional interval of the insertion part 11. The function of the rectangular protrusions is to provide additional support and positioning during the crimping process to prevent the fish-eye terminal 1 from shifting on the PCB board. The material of the rectangular protrusions is the same as the main body of the shoulder 12, and its size and shape can be adjusted according to the overall design of the fish-eye terminal 1.

[0045] Referring to Figure 1 As shown, the end surface slope of the insertion part 11 is smaller than that of the tail part 14. The different end surface slopes can make the fish-eye terminal 1 have different resistance characteristics during insertion and removal. The smaller end surface slope of the insertion part 11 can make the insertion process smoother, while the larger end surface slope of the tail part 14 can provide a certain resistance when pulled out to prevent the fish-eye terminal 1 from falling off accidentally.

[0046] Referring to Figure 2 As shown, the intervals of the insertion zone 111, the transition zone 112 and the mechanical retention zone 113 increase in turn. This design of increasing intervals in turn can make the fish-eye groove 115 gradually play different roles in the crimping process. First, the insertion zone 111 provides the initial insertion force, then the transition zone 112 smoothly transitions, and finally the mechanical retention zone 113 provides the anti-vibration effect.

[0047] The transverse cross-section of the insertion part 11 is any one of a conical shape, a saddle shape and an elliptical shape. Different transverse cross-sectional shapes can be selected according to different PCB crimping hole shapes and actual application requirements. The conical cross-section can make the insertion process easier, the saddle cross-section can provide better contact performance in some specific cases, and the elliptical cross-section can adapt to some special-shaped crimping holes.

[0048] Referring to Figure 8 and Figure 9 As shown, according to the actual test data of the high vibration V3 level of the automobile connector standard SAE / USCAR-2-2020, Random vibration: acceleration root mean square value 18.5g, frequency 10-2000Hz, test spectrum as follows: Sine vibration: maximum acceleration 20.4g, frequency 100-440Hz, test spectrum as follows: F (Hz) Accel. (m / s 2 )]]> Accel. g 100 100 10.2 150 150 15.3 200 200 20.4 240 200 20.4 255 150 15.3 440 150 15.3 The implementation principle of the high-vibration-resistant blind hole fish-eye structure embodiment of the application is that the functions of different regions of the insertion part 11 are divided, the structure of the fish-eye groove 115, the fin-shaped flange 2 and the rectangular protrusion are arranged, so that the fish-eye terminal 1 can realize stable connection when being crimped with the PCB, in the high-vibration environment, the anti-vibration effect of the fish-eye groove 115, the elastic structure of the mechanical retaining area 113 and the cooperative matching between the parts can effectively enhance the mechanical and electrical properties of the fish-eye terminal 1 on the PCB, meet the requirements of the high-vibration V3 level of the automobile connector standard SAE / USCAR-2-2020, the elastic support assembly 3 in the elastic support assembly 3 can be adjusted in position in the fish-eye groove 115, timely control the force generated by the mechanical retaining area 113, improve the overall vibration resistance and stability, compared with the traditional connection mode, has better vibration resistance, lower cost and simpler process, improves the feasibility and reliability of the product.

[0049] Unless otherwise defined, technical terms or scientific terms used in the present application shall be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The use of "first", "second", "third" and similar words in the specification and claims of the present application does not represent any order, number or importance, but is only used to distinguish different components. "One" or "an" and similar words do not represent a quantity limitation, but represent the existence of at least one. "Include" or "contain" and similar words mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A high-vibration-resistant blind via fish-eye structure, characterized in that: The fish-eye terminal (1) has an insertion part (11), a shoulder part (12), a rod part (13) and a tail part (14) which are linearly arranged in sequence along a single direction; The insertion part (11) is composed of a pre-insertion area (110), an insertion area (111), a transition area (112), a mechanical retention area (113) and a fish-eye strength area (114) in sequence, the pre-insertion area (110) is used to provide a guiding effect to insert the PCB board, the insertion area (111) forms a force, the transition area (112) is used to connect the insertion area (111) and the mechanical retention area (113), the mechanical retention area (113) forms an anti-vibration effect, and the fish-eye strength area (114) is used to provide terminal strength, and the insertion area (111), the transition area (112) and the mechanical retention area (113) form a fish-eye groove (115) with an anti-vibration effect. A guide groove (4) is formed on the inner wall of the fish-eye groove (115), and an elastic support assembly (3) for controlling the distance between the two mechanical retention areas (113) is arranged between adjacent guide grooves (4).

2. The high-vibration-resistant blind fish-eye structure according to claim 1, characterized in that: The elastic support assembly (3) includes a connecting block (31) sliding in the guide groove (4), a support frame (32) installed between adjacent connecting blocks (31), an embedded ball (33) installed on the end face of the connecting block (31), and a clamping ball (34) installed on the side face of the connecting block (31), the clamping ball (34) and the embedded ball (33) are installed in the movable groove formed in the connecting block (31), and the embedded ball (33) and the clamping ball (34) abut each other; the clamping ball (34) abuts the embedded ball (33), the embedded ball (33) is clamped in the limiting groove formed on the inner wall of the guide groove (4); the embedded ball (33) abuts the clamping ball (34), and the embedded ball (33) and the limiting groove form a gap.

3. The high-vibration-resistant blind fish-eye structure according to claim 1, wherein: The fish-eye groove (115) is composed of a connecting wall (1151), a side wall (1152), a bottom wall (1154) and a rear end wall (1153), the distance between adjacent connecting walls (1151) increases in a gradient, adjacent side walls (1152) are arranged at an even distance, the side edges of the bottom wall (1154) are connected to the two side walls (1152), and the rear end wall (1153) is connected to the extension ends of the two side walls (1152).

4. The high-vibration-resistant blind fish-eye structure according to claim 3, characterized in that: The included angle between adjacent side walls (1152) is 60°-90°.

5. The high-vibration-resistant blind fish-eye structure according to claim 1, characterized in that: The outer surface of the insertion part (11) forms a fin-shaped convex edge (2), the cross section of the insertion part (11) is bowl-shaped, the two ends of the fin-shaped convex edge (2) are in a slope structure, and the middle is in a planar structure.

6. The high-vibration-resistant blind fish-eye structure according to claim 1, wherein: The side surface of the shoulder part (12) extends outwardly with a rectangular protrusion, and the distance between the outer surfaces of adjacent rectangular protrusions is greater than the cross-sectional distance of the insertion part (11).

7. The high-vibration-resistant blind fish-eye structure according to claim 1, wherein: The end surface slope of the insertion part (11) is smaller than the end surface slope of the tail part (14).

8. The high-vibration resistant blind fish-eye structure of claim 1, wherein: The spacing of the insertion area (111), the transition area (112) and the mechanical retention area (113) increases in sequence.

9. The high-vibration resistant blind fish-eye structure of claim 1, wherein: The cross section of the insertion portion (11) is any one of a conical shape, a saddle shape, and an elliptical shape.

10. The high-vibration resistant blind fish-eye structure of claim 5, wherein: The thickness of the fin-shaped flange (2) and the thickness of the insertion portion (11) are 3-4:5.

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