Metal shielding connection terminal structure

Abstract

The invention discloses a metal shielding connection terminal structure which comprises an outer shell and an inner terminal, the inner terminal is composed of an annular thin wall body, and the outer shell is composed of an annular thick wall body; the inner terminal is provided with a first plugging end and a second plugging end, one end part of the outer shell is provided with an inner hook part which is bent towards the inner side, the inner terminal is provided with a first hollow-out groove for accommodating the elastic bulge, a preset position of the outer shell is provided with a second hollow-out groove for accommodating the elastic bulge, and the first hollow-out groove and the second hollow-out groove are arranged in a staggered manner; the inner-layer terminal and the outer-layer terminal form an effect of facilitating assembly, the inner-layer terminal is a thin-wall body capable of improving elastic force, the outer shell is a thick-wall body capable of mechanically supporting, and the hollow grooves in the outer shell and the inner-layer terminal are arranged in a staggered manner, so that metal faults are avoided, continuity of signal transmission is guaranteed, and the service life of the connector is prolonged. Provided is a connection terminal which is high in performance and easy to assemble.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a metal shielding connection terminal structure. Background Art

[0002] With the continuous development of modern electronic equipment, signal transmission technology has been widely used in various industries, especially in the fields of communications, automotive electronics, industrial automation, etc. In order to meet the growing demand for data transmission, the design of the connector not only needs to ensure the rapid transmission of signals, but also needs to have high reliability and durability. Especially in some high-frequency or high-power electronic devices, the connection terminals play a vital role as transition terminals. These connection terminals are usually used to connect male and female components, or other signal transmission ports, and play the role of signal transition and current connection during the transmission process. With the development of miniaturization and high integration of equipment, the connection terminals need to have efficient and stable signal transmission functions, as well as excellent mechanical strength and long-term durability to cope with increasingly complex working environments and usage conditions.

[0003] In the existing terminal connection technology, the traditional design usually adopts a single metal material or a combined metal structure, which is manufactured by stamping, injection molding and other processes. However, in order to ensure the elastic strength of the connection, this common terminal connection structure often reduces the wall thickness, which will lead to a decrease in mechanical strength and easy deformation, or increases the wall thickness to ensure strength, but the elastic plug-in force is low, affecting the user experience. In particular, the design of the metal hollow groove usually leads to discontinuity of the signal transmission path and forms a metal fault in the terminal, thereby affecting the stability and transmission quality of the signal. It is impossible to provide sufficient mechanical support while ensuring the elastic connection force, resulting in increased assembly difficulty, and there may be delays and discontinuities in signal transmission.

[0004] In view of this, it is necessary to improve the connection terminal technology in the prior art to solve the technical problems of the inability to balance terminal performance and strength and low signal quality. Summary of the invention

[0005] The object of the present invention is to provide a metal shielding connection terminal structure to solve the above technical problems.

[0006] To achieve this object, the present invention adopts the following technical solutions: A metal shielding connection terminal structure comprises an outer shell and an inner terminal, wherein the inner terminal is composed of a ring-shaped thin-walled body, and the outer shell is composed of a ring-shaped thick-walled body; The inner terminal has a first plug-in end and a second plug-in end, and the outer shell is sleeved outside the inner terminal to cover the first plug-in end and expose the second plug-in end; An inner hook portion bent inward is provided at one end of the outer shell, a clamping groove is formed between the inner hook portion and the inner wall of the outer shell, and one end of the inner terminal is clamped in the clamping groove; The inner terminal is provided with a first hollow groove for accommodating the elastic protrusion, and the outer shell is provided with a second hollow groove for accommodating the elastic protrusion at a preset position, and the first hollow groove and the second hollow groove are staggered.

[0007] Optionally, the thin-walled body of the inner terminal includes two flat plate portions that are arranged opposite to each other, and an arc-shaped curved surface portion for connecting the two flat plate portions.

[0008] Optionally, the first plug end is provided with an inner spring ring, the inner spring ring comprising a small spring located on the arc-shaped curved surface portion, and a large spring located on the flat plate portion; The arc-shaped curved surface portion is provided with a first through groove, and the two ends of the small spring piece are respectively connected to the side walls of the first through groove, and the small spring piece is gradually convex inwardly from the two ends to the middle.

[0009] Optionally, the flat plate portion is provided with a second through groove, one end of the large elastic piece is connected to the side wall of the second through groove, and the large elastic piece includes a first elastic body, and second elastic bodies respectively located on both sides of the first elastic body; The first elastic body is provided with a first protruding portion protruding inwardly, the second elastic body is provided with a second protruding portion protruding inwardly, and the first protruding portion is provided on a side of the second protruding portion away from the second plug-in end.

[0010] Optionally, the second plug-in end is provided with an outer spring ring, the outer spring ring includes a plurality of third elastic bodies, and the third elastic bodies are provided to gradually protrude outward from both ends to the middle.

[0011] Optionally, the outer shell is provided with a crack portion, which extends from one end of the outer shell to the other end, wherein the crack portion is used to provide an elastic clamping force.

[0012] The present invention also provides a manufacturing process of a metal shielding connection terminal structure, which is used to manufacture the metal shielding connection terminal structure as described above, and the manufacturing process comprises: Step S1, selecting a suitable metal material, wherein the inner terminal is made of thin-walled metal material and the outer shell is made of thick-walled metal material; Step S2, using stamping technology to form the thin-walled metal material and the thick-walled metal material into the main structure of the annular inner terminal and the annular outer shell respectively; Step S3, using laser processing technology to process the preliminarily formed inner terminal, and processing the plug-in ends for connecting the male and female components and the hollow grooves for subsequent elastic connection at both ends of the inner terminal, the laser parameter power is recommended to be 100W to 300W, and the cutting speed is controlled between 24m / min; Step S4, forming an inner hook portion and a clamping groove by bending a predetermined portion of the outer shell; Step S5, using laser processing technology and bending technology to process elastic protrusions at the hollow groove positions of the inner terminal and the outer shell, and stagger the elastic protrusions in space to optimize signal transmission quality; Step S6, assembling the processed inner terminal and the outer shell according to a predetermined assembly method, and performing conductivity, pressure resistance and durability tests on the assembled connection terminals, and performing appearance inspection, cleaning and packaging at the same time.

[0013] Optionally, the step S3 specifically includes: S31, determine the thickness and physical characteristics of the inner terminal according to the product design requirements, and calibrate the laser processing equipment; S32, placing the preliminarily formed inner terminal on a laser cutting platform, controlling the laser head to cut along a predetermined path through a numerical control system, and the laser cutting head performs arc surface finishing on the arc-shaped curved portion of the inner terminal according to design requirements; S33, using laser technology to punch holes at both ends of the inner terminal to form a first through groove and a plug hole of the first through groove; S34, using laser cutting technology to process two hollow grooves on the inner terminal to accommodate the elastic protrusions, the groove width is between 0.5mm and 1mm, the depth is controlled between 0.3mm and 0.6mm, the laser power is set between 250W and 400W, and the cutting speed is set between 1.5m / min and 3m / min; S35, after laser cutting is completed, the edge of the inner terminal is finely trimmed using laser trimming technology to remove any tiny burrs.

[0014] Optionally, the step S6 specifically includes: S61, preliminarily docking the processed inner terminal and the outer shell, ensuring that the first plug-in end of the inner terminal is inserted into the corresponding position of the outer shell, and checking whether the fit is tight; S62, after completing the preliminary docking of the inner terminal and the outer shell, use an alignment tool to fix them so that the clamping groove of the outer shell and the clamping part of the inner terminal are closely matched; S63, conduct conductivity test on the assembled connection terminals, and use high-precision resistance testing instruments to measure the resistance value of the connection between the inner terminal and the outer shell. During the test, the connection terminals should be in working condition and tested under different temperature environments to evaluate their conductivity performance under high load.

[0015] Optionally, step S6 further includes: S64, perform a compression test on the assembled connection terminals. Use a compression tester to perform a vertical pressure test on the connection terminals. The pressure range is generally set between 50N and 200N. During the test, measure the deformation. S65, multiple plugging and unplugging tests on the connection terminals, simulating the number of plugging and unplugging times that the terminals may experience in actual use, usually set to 1000 to 5000 times. During the test, the plugging and unplugging force and electrical contact stability of the connection terminals are monitored; S66, conduct a random appearance inspection to ensure that the surface of the connection terminals is free of scratches and defects and meets the designed appearance standards.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the connecting terminal structure is composed of two layers of terminals, inner and outer, which facilitates assembly; the inner terminal is a thin-walled body with plug-in ends at both ends, which are respectively used to connect the male and female components; the thin wall can improve the elastic force to facilitate elastic connection with the connecting head; then an outer shell is sleeved on the outside thereof, and the snap-fitting is achieved through the snap-fitting groove formed by the inner hook to form a complete connecting terminal; the outer shell is a thick-walled body that plays a role of mechanical support, and the hollow grooves on the outer shell and the inner terminal are staggered, which ensures that no metal fault will appear in any cross-section of the connecting terminal, thereby well ensuring the continuity of signal transmission, thereby well solving the problem of poor signal continuity caused by the hollow metal grooves in the traditional connecting terminal, and providing a high-performance and easy-to-assemble connecting terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0019] Figure 1 is a schematic diagram of the overall structure of the metal shielding connection terminal structure of the first embodiment; Figure 2 It is a schematic diagram of the exploded structure of the metal shielding connection terminal structure of the first embodiment; Figure 3 This is a schematic structural diagram of the outer shell of the metal shielding connection terminal structure of the first embodiment of the present invention; Figure 4 Schematic diagram of the structure of the inner terminal of the metal shielding connection terminal structure of the first embodiment.

[0020] Illustrations: outer shell 100, inner terminal 200, first plug-in end 203, second plug-in end 204, inner hook portion 110, snap-in groove 111, first hollow groove 210, second hollow groove 120, flat portion 220, arc-shaped curved portion 230, inner spring ring 240, small spring 241, large spring 242, first through groove 201, second through groove 202, first elastic body 2421, second elastic body 2422, first protrusion 2423, second protrusion 2424, outer spring ring 250, crack portion 101. DETAILED DESCRIPTION

[0021] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0023] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0024] Embodiment 1: Combination Figures 1 to 4 As shown, an embodiment of the present invention provides a metal shielding connection terminal structure, including an outer shell 100 and an inner terminal 200, wherein the inner terminal 200 is composed of a ring-shaped thin-walled body, and the outer shell 100 is composed of a ring-shaped thick-walled body; the inner terminal 200 has a first plug-in end 203 and a second plug-in end 204, and the outer shell 100 is sleeved outside the inner terminal 200 to cover the first plug-in end 203 and expose the second plug-in end 204. The outer shell 100 and the inner terminal 200 are both made of metal.

[0025] It should be noted that the inner terminal 200 has a first plug-in end 203 and a second plug-in end 204, wherein the first plug-in end 203 is located inside the outer shell 100 and is used to connect the male component. The first plug-in end 203 is an inner hole that can be used for plugging and unplugging. The inner wall thereof can provide excellent elastic force due to the thin wall of the inner terminal 200 to ensure the plug-in and unplugging force with the male component. At the same time, the first plug-in end 203 is covered by the outer shell 100, and the outer shell 100 provides mechanical protection and support to prevent the weak inner terminal 200 from collision and deformation.

[0026] At the other end, the second plug-in end 204 is exposed from the outer shell 100 for connecting to the female head assembly. Similarly, the thin-walled body of the inner terminal 200 can provide good elastic force, which facilitates the elastic connection with the female head assembly.

[0027] An inner hook portion 110 bent inward is provided at one end of the outer shell 100, and a snap-in groove 111 is formed between the inner hook portion 110 and the inner wall of the outer shell 100, and one end of the inner terminal 200 is snap-into the snap-in groove 111; along the plug-in direction of the inner terminal 200, the inner hook portion 110 can be limited, wherein the inner hook portion 110 has a certain elastic force, and its inner side can tightly buckle the inner terminal 200 to prevent the inner terminal 200 from sliding.

[0028] The inner terminal 200 is provided with a first hollow groove 210 for accommodating the elastic protrusion, and the outer shell 100 is provided with a second hollow groove 120 for accommodating the elastic protrusion at a preset position, and the first hollow groove 210 and the second hollow groove 120 are staggered.

[0029] It should be noted that the elastic protrusion at the first hollow groove 210 protrudes inwardly, and is used for elastic connection with the male component, that is, to provide an elastic snap-fitting effect. The elastic protrusion at the second hollow groove 120 protrudes outwardly and inwardly, and is used for elastic connection with the female component or the external electrical connector. This is provided on conventional connecting terminals. The advantage of this solution is that the elastic protrusions on the inner and outer sides are cleverly staggered by separately arranged outer shell 100 and inner terminal 200, which can ensure that there is at least metal material at the position of any elastic protrusion, effectively avoiding signal transmission interruption or detour, reducing signal interruption and signal delay, and improving signal transmission quality.

[0030] The working principle of the present invention is as follows: the connecting terminal structure is composed of two layers of terminals, inner and outer, which are convenient for assembly. The inner terminal 200 is a thin-walled body with plug-in ends at both ends, which are respectively used to connect the male and female components. The thin wall can improve the elastic force to facilitate elastic connection with the connector. Then the outer shell 100 is sleeved on its outer side, and the snap-fitting groove 111 formed by the inner hook 110 is realized to form a complete connecting terminal. The outer shell 100 is a thick-walled body that plays a role of mechanical support, and the hollow grooves on the outer shell 100 and the inner terminal 200 are staggered, which makes it possible for no metal fault to appear in any cross section of the connecting terminal, which well ensures the continuity of signal transmission, thereby well solving the problem of poor signal continuity caused by the hollow metal grooves in the traditional connecting terminal, and providing a high-performance and easy-to-assemble connecting terminal.

[0031] In this embodiment, the thin-walled body of the inner terminal 200 includes two oppositely disposed flat plate portions 220, and an arc-shaped curved portion 230 for connecting the two flat plate portions 220. That is, the inner terminal 200 of this solution is elliptical as a whole, but has a flat plate portion 220. This flat plate portion 220 can provide an elastically raised manufacturing position in the manufacturing process, reduce the difficulty of positioning and grooving the curved surface, and facilitate the manufacturing process.

[0032] In this embodiment, it is specifically described that the first plug-in end 203 is provided with an inner spring ring 240, and the inner spring ring 240 includes a small spring 241 located on the arc-shaped curved portion 230, and a large spring 242 located on the flat portion 220; the arc-shaped curved portion 230 is provided with a first through groove 201, and the two ends of the small spring 241 are respectively connected to the side walls of the first through groove 201, and the small spring 241 is gradually protruded inward from its two ends to the middle.

[0033] It should be noted that the first plug-in end 203 connected to the male component in the present embodiment is composed of a circle of spring rings. The purpose of setting it is to respectively set two different spring structures on the arc-shaped curved surface portion 230 and the flat plate portion 220. Since the arc-shaped curved surface portion 230 itself is protruding outward, it itself has a certain elastic force. At this time, setting a small spring 241 can ensure that sufficient elastic force is provided. However, in the flat plate portion 220, since the thin walls on both sides of the inner terminal 200 are prone to sink toward the middle during the deformation process, a large spring 242 different from the small spring 241 is set to ensure the balance of the elastic force.

[0034] In this embodiment, it is further described that the flat plate portion 220 is provided with a second through groove 202, one end of the large spring piece 242 is connected to the side wall of the second through groove 202, and the large spring piece 242 includes a first elastic body 2421, and a second elastic body 2422 respectively located on both sides of the first elastic body 2421; wherein, the first elastic body 2421 is provided with a first protruding portion 2423 protruding inwardly, and the second elastic body 2422 is provided with a second protruding portion 2424 protruding inwardly, and the first protruding portion 2423 is arranged on the side of the second protruding portion 2424 away from the second plug-in end 204.

[0035] It should be noted that, as mentioned above, the large spring piece 242 is arranged in conjunction with the small spring piece 241, and its purpose is to ensure the balance of the elastic force. The composition structure and principle of the large spring piece 242 are now specifically described. It includes a first elastic body 2421 in the middle, and a second elastic body 2422 located on the left and right sides respectively, a total of three elastic bodies, and only one end of it is connected to the side wall of the second through groove 202, which is different from the small spring piece 241. This is because during the deformation of the inner terminal 200, the thin walls on both sides are prone to sink toward the middle. Therefore, in order to ensure that the large spring piece 242 here has sufficient deformation space and will not damage the internal male head component, a hollow structure is set, and the first elastic body 2421 and the second elastic body 2422 (because only one end is connected) that are easier to deform, this method ensures the balance of the elastic force.

[0036] Furthermore, the first protrusion 2423 is arranged on the side of the second protrusion 2424 away from the second plug-in end 204, so that the first protrusion 2423 will be closer to the plug-in direction of the male component. Therefore, during the plug-in process, the first protrusion 2423 is elastically engaged with the male component first, playing a role of pre-engagement (facilitating the adjustment of the plug-in position of the male component during the plug-in process); then as the male component is gradually inserted, the second protrusion 2424 is elastically engaged with the male component again. Since there are two second protrusions 2424 on the left and right, they can provide greater elastic engaging force and thus play a role of elastic positioning. Through the cooperation of the first elastic body 2421 and the second elastic body 2422, the male component can be decomposed into two more reasonable processes during the plug-in process, thereby improving the smoothness of the plug-in and reducing the occurrence of jamming.

[0037] In this embodiment, the second plug end 204 is provided with an outer spring ring 250, and the outer spring ring 250 includes a plurality of third elastic bodies. The third elastic bodies are gradually protruded outward from both ends to the middle, so as to provide elastic supporting force.

[0038] The arc-shaped curved surface portion 230 is provided with a crack portion 101 , and the crack portion 101 extends from one end to the other end of the outer shell 100 , wherein the crack portion 101 is used to provide an elastic clamping force.

[0039] It should be noted that the outer housing 100 of the present solution also provides an elastic clamping force by providing a crack portion 101 , so as to facilitate positioning and matching with the inner terminal 200 .

[0040] Embodiment 2: The present invention also provides a manufacturing process of a metal shielding connection terminal structure, which is used to manufacture the metal shielding connection terminal structure as in the first embodiment, and the manufacturing process includes: Step S1 : selecting a suitable metal material, wherein the inner terminal 200 is made of a thin-walled metal material, and the outer shell 100 is made of a thick-walled metal material.

[0041] Step S2, using stamping technology to form the thin-walled metal material and the thick-walled metal material into the main structures of the annular inner terminal 200 and the annular outer shell 100 respectively; at this stage, only the basic annular outline is formed without other additional structures.

[0042] Step S3, use laser processing technology to process the initially formed inner terminal 200, and process the plug-in terminals for connecting the male and female components and the hollow grooves for subsequent elastic connection at both ends. The recommended laser parameter power is 100W to 300W, and the cutting speed is controlled between 24m / min.

[0043] Step S4, forming an inner hook 110 and a snap-fit ​​groove 111 by bending a predetermined portion of the outer shell 100, so as to facilitate locking and assembling the inner terminal 200 and the outer shell 100, and ensure that the dimensional accuracy of the snap-fit ​​groove 111 is controlled within ±0.05mm.

[0044] Step S5, using laser processing technology and bending technology to process elastic protrusions at the hollow groove positions of the inner terminal 200 and the outer shell 100, and stagger the elastic protrusions in space to optimize the signal transmission quality; the laser power is set at 150W to 250W, and the cutting speed is 12m / min.

[0045] Step S6, assembling the processed inner terminal 200 and the outer shell 100 according to a predetermined assembly method, and performing conductivity, pressure resistance and durability tests on the assembled connection terminals, and performing appearance inspection, cleaning and packaging at the same time.

[0046] The beneficial effects of this manufacturing process are: through precise laser processing, injection molding technology and elastic protrusion design, the excellent performance and high reliability of the metal shielding connection terminal are ensured. The separate design of the inner terminal 200 and the outer shell 100 enables the connection terminal to have good elastic connectivity, which can ensure smooth plugging and unplugging operations and provide stable electrical contact. The staggered setting of the hollow groove and the elastic protrusion effectively improves the signal transmission quality and avoids interruptions or delays in signal transmission. The entire method not only improves the conductivity, pressure resistance and durability of the product, but also optimizes the production process, reduces material waste and manual errors, improves production efficiency and product quality, and ensures the stability and performance of the metal shielding connection terminal under high load and high frequency use.

[0047] In this embodiment, it is specifically described that step S3 specifically includes: S31, determining the thickness and physical properties of the inner terminal 200 according to product design requirements, and calibrating the laser processing equipment; First, select suitable thin-walled metal materials (such as high-strength copper alloy or aluminum alloy), determine their thickness and physical properties according to product design requirements, and ensure that they have good conductivity and elasticity. At the same time, calibrate the laser processing equipment to ensure that the laser power, focal length and cutting speed meet the process requirements. The power of the laser equipment is generally set between 300W and 500W, and the focal diameter is usually controlled between 0.1mm and 0.2mm to ensure cutting accuracy.

[0048] S32, placing the preliminarily formed inner terminal 200 on a laser cutting platform, controlling the laser head to cut along a predetermined path through a numerical control system, and the laser cutting head performs arc surface finishing on the arc-shaped curved portion 230 of the inner terminal 200 according to design requirements; During the cutting process, the cutting speed of the laser head is controlled between 2m / min and 4m / min, and the laser power is adjusted according to the material thickness, usually 350W. During the cutting process, special attention should be paid to the smoothness of the cutting edge to avoid burrs and ensure that the shape of the inner terminal 200 meets the requirements.

[0049] S33, using laser technology to punch holes at both ends of the inner terminal 200 to form a first through slot 201 and a plug hole of the first through slot 201; The size of these sockets is designed according to the matching requirements of the male and female components, and the general size is between 0.5mm and 2mm. The laser drilling process requires high-precision control of the laser focal length and cutting speed to ensure that the roundness and verticality of the sockets meet the requirements. The laser power of this step is controlled between 100W and 200W, and the drilling speed is about 1mm / s to 2mm / s to avoid overheating and material deformation.

[0050] S34, using laser cutting technology to process two hollow grooves on the inner terminal 200 for accommodating the elastic protrusion, the groove width is between 0.5 mm and 1 mm, the depth is controlled between 0.3 mm and 0.6 mm, the laser power is set between 250 W and 400 W, and the cutting speed is set between 1.5 m / min and 3 m / min; The laser cutting head accurately cuts the hollow groove along the predetermined path to ensure that the width and depth of the groove meet the design standards. Usually, the temperature needs to be strictly controlled during this process to avoid overheating and causing the material to burn or deform.

[0051] S35, after the laser cutting is completed, the edge of the inner terminal 200 is finely trimmed using laser trimming technology to remove the existing tiny burrs.

[0052] This process uses a high-precision laser beam to perform micro-cutting and cleaning along the cutting edge to ensure that the surface of the inner terminal 200 is smooth and flawless to meet the requirements of subsequent assembly. During this process, the laser power is set between 150W and 250W, and the adjustment speed is 0.5m / s to ensure uniform cutting effect.

[0053] In this embodiment, it is specifically described that step S6 specifically includes: S61, preliminarily docking the processed inner terminal 200 and the outer shell 100, ensuring that the first plug-in end 203 of the inner terminal 200 is inserted into the corresponding position of the outer shell 100, and checking whether the fit is tight; Avoid looseness or mismatch. This step requires the use of high-precision assembly fixtures and positioning equipment to ensure accurate axial and radial docking of the inner terminal 200 and the outer shell 100. The fixture should have a fine-tuning function to compensate for minor errors in processing.

[0054] S62, after the preliminary docking of the inner terminal 200 and the outer shell 100 is completed, a positioning tool is used to fix them so that the clamping groove 111 of the outer shell 100 is closely matched with the clamping part of the inner terminal 200; Ensure the stability of the connection. During this process, a clamp or spring clamp is used for mechanical locking to ensure that the two parts can remain fixed in subsequent operations. The clamping process requires pressure monitoring by automated equipment to ensure that the pressure is uniform and meets standard requirements.

[0055] S63, conduct a conductivity test on the assembled connecting terminals, and use a high-precision resistance testing instrument to measure the resistance value of the connecting portion between the inner terminal 200 and the outer shell 100. During the test, the connecting terminals should be in a working state and tested under different temperature environments to evaluate their conductivity performance under high load.

[0056] Ensure that it can conduct current smoothly during use. Use a high-precision resistance tester to measure the resistance value of the connection between the inner terminal 200 and the outer shell 100. During the test, the connection terminal should be in a working state and tested under different temperature environments to evaluate its conductivity performance under high load. The resistance value needs to meet the design requirements, and the resistance value is usually required to be less than 0.01Ω.

[0057] S64, perform a compression test on the assembled connection terminals. Use a compression tester to perform a vertical pressure test on the connection terminals. The pressure range is generally set between 50N and 200N. During the test, measure the deformation. Ensure that it can withstand external pressure without deformation. Use a compression tester to perform vertical pressure test on the connection terminal. The pressure range is generally set between 50N and 200N. The specific value is adjusted according to the design requirements. During the test, the deformation is measured to ensure that the deformation does not exceed the design limit. Usually the deformation does not exceed 0.1mm.

[0058] S65, multiple plugging and unplugging tests on the connection terminals, simulating the number of plugging and unplugging times that the terminals may experience in actual use, usually set to 1000 to 5000 times. During the test, the plugging and unplugging force and electrical contact stability of the connection terminals are monitored; To ensure that it can maintain good performance. After the plug-in test, a vibration test is also required to simulate the vibration effects that may occur during long-term use.

[0059] S66, conduct a random appearance inspection to ensure that the surface of the connection terminals is free of scratches and defects and meets the designed appearance standards.

[0060] Use a microscope to check for tiny defects on the surface of the connection terminals to ensure that every detail is correct. Then, use an ultrasonic cleaner or chemical cleaning agent to clean the surface of the connection terminals to remove any remaining oil, dust and other impurities to ensure that the connection terminals are clean and free of contamination.

[0061] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A metal shielding connection terminal structure, characterized in that: It comprises an outer shell (100) and an inner terminal (200), wherein the inner terminal (200) is composed of a ring-shaped thin-walled body, and the outer shell (100) is composed of a ring-shaped thick-walled body; The inner terminal (200) has a first plug end (203) and a second plug end (204); the outer shell (100) is sleeved outside the inner terminal (200) to cover the first plug end (203) and expose the second plug end (204); An inner hook portion (110) bent inwardly is provided at one end of the outer shell (100), a clamping groove (111) is formed between the inner hook portion (110) and the inner wall of the outer shell (100), and one end of the inner terminal (200) is clamped in the clamping groove (111); The inner terminal (200) is provided with a first hollow groove (210) for accommodating the elastic protrusion, and the outer shell (100) is provided with a second hollow groove (120) for accommodating the elastic protrusion at a preset position, and the first hollow groove (210) and the second hollow groove (120) are staggered.

2. The metal shielding connection terminal structure according to claim 1, characterized in that: The thin-walled body of the inner terminal (200) comprises two flat plate portions (220) arranged opposite to each other, and an arc-shaped curved portion (230) for connecting the two flat plate portions (220).

3. The metal shielding connection terminal structure according to claim 2, characterized in that: The first plug end (203) is provided with an inner spring ring (240), the inner spring ring (240) comprising a small spring (241) located on the arc-shaped curved surface portion (230), and a large spring (242) located on the flat plate portion (220); The arc-shaped curved surface portion (230) is provided with a first through groove (201), the two ends of the small spring piece (241) are respectively connected to the side walls of the first through groove (201), and the small spring piece (241) is gradually convex inwardly from the two ends to the middle.

4. The metal shielding connection terminal structure according to claim 3, characterized in that: The flat plate portion (220) is provided with a second through-groove (202); one end of the large elastic piece (242) is connected to a side wall of the second through-groove (202); the large elastic piece (242) comprises a first elastic body (2421) and second elastic bodies (2422) respectively located on two sides of the first elastic body (2421); The first elastic body (2421) is provided with a first protruding portion (2423) protruding inwardly, the second elastic body (2422) is provided with a second protruding portion (2424) protruding inwardly, and the first protruding portion (2423) is arranged on a side of the second protruding portion (2424) away from the second plug end (204).

5. The metal shielding connection terminal structure according to claim 1, characterized in that: The second plug end (204) is provided with an outer spring ring (250), the outer spring ring (250) comprising a plurality of third elastic bodies, the third elastic bodies being provided to gradually bulge outwards from both ends to the middle.

6. The metal shielding connection terminal structure according to claim 1, characterized in that: The outer shell (100) is provided with a crack portion (101), and the crack portion (101) extends from one end of the outer shell (100) to the other end, wherein the crack portion (101) is used to provide an elastic clamping force.

7. A manufacturing process of a metal shielding connection terminal structure, characterized in that: Used to manufacture the metal shielding connection terminal structure according to any one of claims 1 to 6, the manufacturing process comprising: Step S1, selecting a suitable metal material, wherein the inner terminal is made of thin-walled metal material and the outer shell is made of thick-walled metal material; Step S2, using stamping technology to form the thin-walled metal material and the thick-walled metal material into the main structure of the annular inner terminal and the annular outer shell respectively; Step S3, using laser processing technology to process the preliminarily formed inner terminal, and processing the plug-in ends for connecting the male and female components and the hollow grooves for subsequent elastic connection at both ends of the inner terminal, the laser parameter power is recommended to be 100W to 300W, and the cutting speed is controlled between 24m / min; Step S4, forming an inner hook portion and a clamping groove by bending a predetermined portion of the outer shell; Step S5, using laser processing technology and bending technology to process elastic protrusions at the hollow groove positions of the inner terminal and the outer shell, and stagger the elastic protrusions in space to optimize signal transmission quality; Step S6, assembling the processed inner terminal and the outer shell according to a predetermined assembly method, and performing conductivity, pressure resistance and durability tests on the assembled connection terminals, and performing appearance inspection, cleaning and packaging at the same time.

8. The manufacturing process of the metal shielding connection terminal structure according to claim 7, characterized in that: The step S3 specifically includes: S31, determine the thickness and physical characteristics of the inner terminal according to the product design requirements, and calibrate the laser processing equipment; S32, placing the preliminarily formed inner terminal on a laser cutting platform, controlling the laser head to cut along a predetermined path through a numerical control system, and the laser cutting head performs arc surface finishing on the arc-shaped curved portion of the inner terminal according to design requirements; S33, using laser technology to punch holes at both ends of the inner terminal to form a first through groove and a plug hole of the first through groove; S34, using laser cutting technology to process two hollow grooves on the inner terminal to accommodate the elastic protrusions, the groove width is between 0.5mm and 1mm, the depth is controlled between 0.3mm and 0.6mm, the laser power is set between 250W and 400W, and the cutting speed is set between 1.5m / min and 3m / min; S35, after laser cutting is completed, the edge of the inner terminal is finely trimmed using laser trimming technology to remove any tiny burrs.

9. The manufacturing process of the metal shielding connection terminal structure according to claim 8, characterized in that: The step S6 specifically includes: S61, preliminarily docking the processed inner terminal and the outer shell, ensuring that the first plug-in end of the inner terminal is inserted into the corresponding position of the outer shell, and checking whether the fit is tight; S62, after completing the preliminary docking of the inner terminal and the outer shell, use an alignment tool to fix them so that the clamping groove of the outer shell and the clamping part of the inner terminal are closely matched; S63, conduct conductivity test on the assembled connection terminals, and use high-precision resistance testing instruments to measure the resistance value of the connection between the inner terminal and the outer shell. During the test, the connection terminals should be in working condition and tested under different temperature environments to evaluate their conductivity performance under high load.

10. The manufacturing process of the metal shielding connection terminal structure according to claim 9, characterized in that: The step S6 further comprises: S64, perform a compression test on the assembled connection terminals. Use a compression testing machine to perform a vertical pressure test on the connection terminals. The pressure range is generally set between 50N and 200N. During the test, measure the deformation. S65, multiple plugging and unplugging tests on the connection terminals, simulating the number of plugging and unplugging times that the terminals may experience in actual use, usually set to 1000 to 5000 times. During the test, the plugging and unplugging force and electrical contact stability of the connection terminals are monitored; S66, conduct random appearance inspection to ensure that the surface of the connection terminals is free of scratches and defects and meets the designed appearance standards.

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