A high-speed signal connector

Abstract

The application discloses a high-speed signal connector, which comprises an outer conductor and a baffle. A plurality of terminal assemblies are arranged in the outer conductor. The insertion direction is defined as the first direction, the terminal extension direction is defined as the second direction, and the vertical direction is defined as the third direction. A receiving groove for mounting the baffle is formed in the outer conductor. A plurality of protrusions are arranged on the baffle and / or the outer conductor, and the baffle and the outer conductor are interferingly matched through the protrusions. At least three protrusions are included in the plurality of protrusions, at least two of which are distributed along the second direction or the third direction, and the extension directions of the at least three protrusions are not completely the same. The at least three protrusions form a plurality of point contacts between the baffle and the outer conductor. The application can make the contact more reliable through the plurality of point contacts and the interference matching, directly increase the holding force, indirectly improve the crosstalk performance, and effectively solve the problems of serious signal interference and poor contact stability in the multi-cavity high-speed signal connector.

Description

Technical Field

[0001] This invention relates to the field of signal connector technology, and more specifically, to a high-speed signal connector, which is particularly suitable for scenarios requiring multi-channel high-speed signal transmission in fields such as automotive and communications. Background Technology

[0002] Currently, in high-speed RF automotive connector board-end products, the mating structure between the die-cast outer conductor and the baffle mainly employs raised bumps on both sides of the baffle, using the interference between the raised bumps and the grooves to provide holding force and shielding. However, the above-mentioned existing technology has significant technical shortcomings in the practical application of multi-cavity products (such as four-cavity Minifakra board-end products), mainly in the following aspects: (1) When a product has multiple signal channels (e.g., multiple signal terminals arranged in front and back), the signal transmission between the front and back signal terminals will interfere with each other, resulting in severe crosstalk between multiple channel signals. The measured crosstalk performance cannot meet the standard, and in severe cases, it may even cause the display or transmission equipment to malfunction. (2) In the prior art, the number of contact points between the baffle and the outer conductor is insufficient (usually only two contacts on the left and right sides), and the contact is not stable enough to form a stable and effective support. Two contacts alone cannot establish enough electrical connection points between the baffle and the outer conductor, resulting in discontinuous shielding and serious electromagnetic leakage; at the same time, due to the small number of contact points and uneven distribution of interference force, the baffle is prone to displacement or even detachment under external force or vibration. (3) In the prior art, the baffle causes interference in the initial stage of installation, resulting in a large assembly force. Since a large interference resistance needs to be overcome at the beginning of assembly, it is not conducive to automated assembly operations and is prone to problems such as assembly jamming and damage to parts, which increases the assembly difficulty and manufacturing cost. Summary of the Invention

[0003] This invention aims to solve the aforementioned technical problems existing in the prior art. Specifically, the technical problems to be solved by this invention include: First, in multi-cavity high-speed signal connectors, there is severe mutual interference between multiple channels of signals, and the measured crosstalk performance cannot meet the standards; Second, in the prior art, there are only two contact points between the baffle and the outer conductor, which cannot form a stable and effective support, and it is necessary to solve the problem of stable contact of the contacts and providing sufficient holding force; Third, the existing baffle causes interference at the initial stage of installation, resulting in large assembly forces, which is not conducive to automated assembly.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A high-speed signal connector includes an outer conductor and a baffle. Multiple terminal assemblies are arrayed within the outer conductor. The insertion direction of the connector is defined as a first direction, the extension direction of the terminal assemblies is defined as a second direction, and directions perpendicular to the first and second directions are defined as third directions. The outer conductor has a receiving groove for mounting the baffle; The baffle and / or the outer conductor are provided with a plurality of raised ribs, and the baffle and the outer conductor form an interference fit through the raised ribs; The plurality of said ribs includes at least three ribs, at least two of the at least three ribs are distributed along a second direction or a third direction, and the extension directions of the at least three ribs are not exactly the same, for forming a multi-point contact between the baffle and the outer conductor.

[0005] Furthermore, a shielding wall is provided between two adjacent terminal assemblies located in the same row along a third direction. The shielding wall extends along a first direction and cooperates with the baffle to isolate each terminal assembly from each other.

[0006] Furthermore, the baffle is formed by die casting, and the baffle includes a cover plate and at least one shielding plate; the cover plate and the shielding plate are connected by connecting ribs, and when there are multiple shielding plates, adjacent shielding plates are also connected by connecting ribs.

[0007] Furthermore, the shielding wall has a protruding rib at the top along the second direction, and the baffle has a groove at the bottom along the second direction that cooperates with the protruding rib.

[0008] Furthermore, the receiving groove is a sliding groove, which is disposed on the side wall of the outer conductor at a position corresponding to the end of the cover plate and the shielding plate; the sliding groove includes a first sliding groove for accommodating the shielding plate and a second sliding groove for accommodating the cover plate, and the first sliding groove and the second sliding groove are spaced apart along a first direction.

[0009] Furthermore, the shielding plate is provided with a first rib, a second rib, and a third rib at the top along the second direction. The first rib and the third rib are respectively located on both sides of the top and extend backward along the first direction. The second rib is located in the middle of the top and extends forward along the first direction. The first rib, the second rib, and the third rib form a three-point contact.

[0010] Furthermore, the first slide groove has two symmetrically arranged slide grooves, which are respectively used to cooperate with the corresponding ends of the shielding plate; the two opposite side walls of each first slide groove are respectively provided with a fourth rib and a fifth rib, which are used to interfere with the shielding plate and thus form a stable contact.

[0011] Furthermore, the second slide groove has two symmetrically arranged slide grooves, and a sixth rib extending in the first direction toward the insertion end is provided on one side wall of the two second slide grooves; a seventh rib is provided on the end face of the rib facing away from the insertion end; the two sixth ribs and the seventh rib form a three-point contact.

[0012] Furthermore, the top of the cover plate is provided with an eighth protruding rib extending toward the insertion end in a first direction, and the eighth protruding rib interferes with the outer conductor.

[0013] Furthermore, there are two eighth ribs, which are respectively located on both sides of the top of the cover plate.

[0014] Furthermore, the rib is provided with at least one pair of ninth ribs for interference engagement with the groove at the bottom of the baffle; two of the ribs in each pair of ninth ribs extend in opposite directions along a third direction, and the distance between the two ribs is less than or equal to 5mm.

[0015] Furthermore, the baffle is formed by sheet metal forming, and the baffle includes an independent cover plate and a shielding plate.

[0016] Furthermore, the receiving groove includes a limiting groove for installing the cover plate and the shielding plate. The cover plate and the shielding plate are each provided with two protrusions at their lower parts along the second direction, and the protrusions are accommodated in the corresponding limiting grooves.

[0017] Furthermore, the wall of the limiting groove is provided with protrusions, and the cover plate and the shielding plate are each provided with a tenth rib and an eleventh rib arranged vertically along the second direction on both sides of the third direction. The tenth rib and the eleventh rib extend in opposite directions, and the extension direction of the protrusions is the same as that of the tenth rib. The tenth rib and the eleventh rib on both sides of the cover plate and the shielding plate in the third direction respectively cooperate with the protrusions on the wall of the limiting groove on the same side, forming three-point contact on each side of the third direction.

[0018] Furthermore, the cover plate and the shielding plate are provided with a twelfth and a thirteenth rib arranged vertically along the second direction in the middle, and the extension direction of the twelfth and thirteenth ribs is the same as the extension direction of the eleventh rib.

[0019] The core principle of this invention in solving the crosstalk problem is as follows: In multi-channel high-speed signal connectors, crosstalk is mainly generated by electromagnetic field coupling between signal channels. In order to suppress crosstalk, a shielding structure needs to be set between adjacent signal channels. The shielding structure should form a continuous, low-impedance electrical path to guide electromagnetic energy to the reference ground. This invention sets ribs and grooves and multiple ribs between the baffle and the outer conductor, mainly to improve crosstalk performance. At the same time, the multi-point contact formed by at least three ribs makes the contact between the baffle and the outer conductor more reliable, thereby indirectly improving crosstalk performance and directly increasing the holding force. The specific principle is: (1) Multiple contact points (i.e. ribs) ensure that the electrical connection between the baffle and the outer conductor is redundant and reliable. Even if a contact point is not in good contact due to manufacturing tolerance, other contact points can still maintain the continuity of the shielding path, thereby ensuring that the overall shielding effect is not deteriorated due to single-point failure. (2) At least two of the at least three ribs are distributed along the second or third direction, and the extension directions of the at least three ribs are not completely the same, which is used to form a multi-point contact between the baffle and the outer conductor. Compared with the existing technology that only relies on two protrusions on the left and right sides to provide contact, this multi-point contact structure can form a more stable constraint on the baffle, so that the baffle is supported in multiple directions, reducing the shaking or displacement relative to the outer conductor. Moreover, due to the reasonable distribution of contact points, the force is more balanced and the contact is more reliable, thus ensuring the long-term stability of the contact. (3) In the cooperation structure between the baffle and the outer conductor, the distance between two protrusions (such as the protrusions and protrusions arranged vertically) is ≤5mm. According to the shielding theory, the smaller the contact point distance, the more contact points are added at the shielding gap. The denser the contact points, the better the shielding performance. This invention can achieve excellent shielding performance by limiting the distance to ≤5mm. (4) This invention adopts interference fit (i.e., interference fit). This fit method ensures that the pressure between the contact points is large enough to form a reliable metal contact, reduce the contact resistance, and thus establish a low-impedance shielding path. At the same time, the interference fit can also provide sufficient holding force to prevent the baffle from coming off the outer conductor. (5) By setting multiple ribs at different parts (top, end, bottom of outer conductor, etc.) of the baffle and / or outer conductor, the holding force is distributed on multiple contact points, resulting in more uniform force distribution. Compared with the prior art, which relies on only two points on the left and right sides for force distribution, the solution of the present invention avoids local stress concentration and improves the reliability and service life of the product.

[0020] Beneficial effects: Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention improves crosstalk performance by setting ribs, grooves, and multiple ribs between the baffle and the outer conductor. Simultaneously, the multi-point contact formed by at least three ribs makes the contact more reliable, indirectly improving crosstalk performance and directly increasing the holding force between the baffle and the outer conductor. Experimental data shows that after adopting the technical solution of the present invention, the crosstalk performance between the front and rear signal terminals is significantly optimized, and the measured crosstalk value is improved from failing to meet the standard to meeting industry standard requirements, completely solving the problem of mutual interference between multi-channel signals.

[0021] (2) The present invention adopts an interference fit method, which generates a stable holding force between the baffle and the outer conductor through multiple ribs (distributed on both sides and the middle of the baffle and / or the outer conductor). Compared with the prior art, which only relies on the left and right side ribs to provide holding force, the multi-point contact and interference fit structure of the present invention makes the holding force distribution more uniform, the baffle is not easy to detach from the outer conductor, and can maintain a stable contact state even after long-term use or in a vibration environment.

[0022] (3) In the die-cast baffle design of the present invention, by providing fourth and fifth ribs on the two opposite sidewalls of each first groove, and by setting the ninth ribs on the ribs in pairs opposite each other, the baffle needs to overcome a certain interference force to reach the final position during the installation process, forming a so-called "forced installation" (i.e., at least local interference fit). This forced installation structure further ensures that the contact between the baffle and the outer conductor is more reliable, directly increasing the holding force, thereby indirectly improving the crosstalk performance.

[0023] (4) In the sheet metal baffle design of the present invention, the tenth and eleventh ribs on both sides of the cover plate and the shielding plate are set to extend in opposite directions, while the eleventh rib and the protrusion on the wall of the limiting groove are set to extend in the same or opposite directions. During the assembly process, when the eleventh rib enters the outer conductor, it is a sliding fit (sliding fit), with a small insertion force, which facilitates automated assembly and reduces assembly difficulty; when it continues to be pressed until the tenth rib enters the outer conductor, local interference (forced fit) is formed, generating a stable holding force. This "sliding fit with reinforced fit" assembly method also makes the contact more reliable, directly increases the holding force, and indirectly improves the crosstalk performance.

[0024] (5) The technical solution of the present invention can be applied to both die-cast baffles and sheet metal baffles. The two solutions are suitable for different production batches, cost requirements and performance requirements, and have strong flexibility and universality. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of one type of connector (the baffle is a die-cast baffle) in this invention.

[0027] Figure 2 This is an exploded view of the connector in this invention (excluding terminal components).

[0028] Figure 3 This is a schematic diagram of the outer conductor.

[0029] Figure 4 This is a top view of the outer conductor.

[0030] Figure 5 yes Figure 4 Enlarged view of point I in the middle.

[0031] Figure 6 This is one of the schematic diagrams of a die-cast baffle.

[0032] Figure 7 This is the second schematic diagram of a die-cast baffle.

[0033] Figure 8 This is a structural schematic diagram of another connector (the baffle is a sheet metal baffle) in this invention.

[0034] Figure 9 yes Figure 7 Front view of the middle shielding plate.

[0035] Figure 10 This is a top view of the shielding plate.

[0036] Figure 11 This is the left view of the shielding plate.

[0037] Figure 12 This is a schematic diagram of the outer conductor.

[0038] The diagram shows the following markings: 1. Outer conductor; 101. First groove; 102. Second groove; 2. Terminal assembly; 3. Die-cast baffle; 301. Shielding plate; 302. Connecting rib; 303. Cover plate; 304. Groove; 4. Insertion post; 5. Shielding wall; 6. Protruding rib; 7. Seventh protruding rib; 8. Fourth protruding rib; 9. Fifth protruding rib; 10. Ninth protruding rib; 11. Sixth protruding rib; 12. First protruding rib; 13. Second protruding rib; 14. Eighth protruding rib; 15. Third protruding rib; 16. Boss; 17. Tenth protruding rib; 18. Eleventh protruding rib; 19. Twelfth protruding rib; 20. Limiting groove; 21. Protrusion. Detailed Implementation

[0039] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0040] In the description of this invention, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0041] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0042] In the following specific embodiments, in order to clearly describe the structure of the present invention, the directions involved in the text are first defined as follows: the insertion direction of the connector is defined as the first direction (equivalent to the front-back direction), the extension direction of the terminal assembly is defined as the second direction (equivalent to the up-down direction), and the directions perpendicular to the first direction and the second direction are defined as the third direction (equivalent to the left-right direction).

[0043] In this invention, "interference fit" refers to a fit between two mating parts that forms a tight contact through interference, meaning that the dimensions of the rib and the mating surface overlap in the free state, thereby forming a stable contact pressure and holding force. "Multi-point contact" refers to a stable contact state formed through at least three contact points. "Three-point contact" is a specific form of "multi-point contact," referring to a stable support formed precisely through three contact points. In this invention, the multi-point contact is achieved through at least three ribs with not completely identical extension directions, and at least two of them are distributed along a second or third direction; while three-point contact (as in Embodiments 1 and 2 below) is a typical application of this multi-point contact principle in a specific structure.

[0044] Before describing specific embodiments, the overall structure of the high-speed signal connector of the present invention will be explained first.

[0045] Please refer to Figures 1 to 12 The high-speed signal connector provided by this invention includes an outer conductor 1 and a baffle. Multiple terminal assemblies 2 are arrayed within the outer conductor 1. Specifically, multiple insertion pins 4 are arrayed at one end of the outer conductor 1. The insertion pins 4 extend along a first direction and are used for mating with a matching connector. The insertion pins 4 are arranged in a rectangular array, for example, four insertion pins 4 arranged in two rows and two columns. The terminal assemblies 2 are disposed in the inner holes of the insertion pins 4, extending in a second direction, that is, the terminal assemblies 2 are inserted into the inner holes of the insertion pins 4 from the bottom of the outer conductor 1 (along the second direction).

[0046] The outer conductor 1 has a receiving groove for mounting the baffle. The receiving groove is located at the end of the outer conductor 1 away from the plug post 4 (i.e., the rear end). A shielding wall 5 is provided between two adjacent terminal assemblies 2 in the same row along a third direction. The shielding wall 5 extends along a first direction and cooperates with the baffle to isolate each terminal assembly 2 from each other. Specifically, when the plug posts 4 are arranged in a rectangular array, a shielding wall 5 is provided between two adjacent plug posts 4 in the same row (front row or rear row), which isolates adjacent signal channels from each other. At the same time, after the baffle is installed into the outer conductor 1 from top to bottom along a second direction, the shielding plate 301 on the baffle will be inserted between the front and rear row terminal assemblies 4, forming an independent shielding cavity together with the shielding wall 5, which individually surrounds each terminal assembly 2, thereby effectively preventing signal crosstalk. This shielding wall and baffle cooperation structure is particularly suitable for multi-cavity products (such as four-cavity Minifakra board-end connectors), and can significantly reduce crosstalk between channels.

[0047] The technical solution of the present invention will be described in detail below through two specific embodiments.

[0048] Example 1 (The baffle is formed by die casting) In this embodiment, the baffle is formed by die casting, and for ease of description, it is referred to as the die-cast baffle 3. This embodiment mainly describes the mating structure between the die-cast baffle 3 and the outer conductor 1.

[0049] Please refer to Figures 1 to 7 The die-cast baffle 3 includes a cover plate 303 and at least one shielding plate 301. The cover plate 303 is located at the end of the outer conductor 1 away from the plug post 4 (i.e., the rear end) and is substantially perpendicular to the extension direction (first direction) of the plug post 4. The shielding plate 301 is located on the side of the cover plate 303 closest to the plug post 4 (i.e., the front side) and is parallel to the cover plate 303. The cover plate 303 is connected to the adjacent shielding plate 301 by connecting ribs 302. When there are multiple shielding plates 301, adjacent shielding plates 301 are also connected by connecting ribs 302. The connecting ribs 302 serve two purposes: firstly, they connect the baffle, making the die-cast baffle have good integrity and easy to mass-produce; secondly, they also separate the space between the cover plate 303 and the shielding plate 301, further enhancing the shielding effect. When multiple signal channels need to be isolated, multiple shielding plates 301 can be set to flexibly adapt to the needs of different numbers of cavities.

[0050] The shielding wall 5 has a protruding rib 6 at its top along the second direction, and the die-cast baffle 3 has a groove 304 at its bottom along the second direction (i.e., the lower edge of the cover plate 303 and the shielding plate 301) that mates with the protruding rib 6. During assembly, the protruding rib 6 is inserted into the groove 304, serving as a guide and initial positioning to ensure that the baffle moves along the correct path during installation and avoids deflection. The main purpose of setting the protruding rib 6 and the groove 304 is to improve crosstalk performance.

[0051] The receiving groove is a sliding groove, which is disposed on the side wall of the outer conductor 1 at a position corresponding to the ends of the cover plate 303 and the shielding plate 301. Specifically, the sliding groove includes a first sliding groove 101 for accommodating the shielding plate 301 and a second sliding groove 102 for accommodating the cover plate 303. The first sliding groove 101 and the second sliding groove 102 are spaced apart along a first direction, wherein the first sliding groove 101 is located on the front side (the side closer to the plug post 4), and the second sliding groove 102 is located on the rear side (the side away from the plug post 4).

[0052] Please refer to Figure 6 and Figure 7The shielding plate 301 has a first rib 12, a second rib 13, and a third rib 15 along its top (i.e., upper edge) in the second direction. The first rib 12 and the third rib 15 are located on the left and right sides of the top of the shielding plate 301 in the third direction, respectively, while the second rib 13 is located in the middle of the top of the shielding plate 301. Specifically, the first rib 12 and the third rib 15 are located on both sides of the rear end face and extend rearward in the first direction, while the second rib 13 is located in the middle and extends forward in the first direction. The first rib 12, the second rib 13, and the third rib 15 are arranged substantially along the third direction, i.e., roughly in a straight line. After assembly, these three ribs contact the corresponding parts on the outer conductor 1 (specifically, the top of the first groove 101 or the corresponding part of the shielding wall 5), forming a three-point contact. This makes the contact between the shielding plate 301 and the baffle more secure, thereby indirectly improving the crosstalk performance and directly increasing the holding force, ensuring that the shielding plate 301 is stably and reliably fixed in the outer conductor 1 without shaking.

[0053] Please refer to Figures 3 to 5 The first slide groove 101 has two symmetrically arranged sections, respectively located on the third direction sides (left and right side walls) of the outer conductor 1, for engaging with the two ends (left and right ends) of the shielding plate 301. Each of the first slide grooves 101 has a fourth rib 8 and a fifth rib 9 on its two opposite side walls. Specifically, the fourth rib 8 is located on the lower part of the front side wall of the first slide groove 101 along the first direction, and the fifth rib 9 is located on the lower part of the rear side wall of the first slide groove 101 along the first direction. The fourth rib 8 and the fifth rib 9 are arranged opposite each other, forming a "clamping" effect on the shielding plate 301, ensuring that the shielding plate 301 does not tilt within the slide groove.

[0054] Please continue to refer to Figures 3 to 5 The second slide groove 102 has two symmetrically arranged sections, respectively located on the third directional sides of the outer conductor 1. A sixth rib 11 extending in the first direction towards the insertion end (i.e., forward) is provided on one side wall of each of the two second slide grooves 102. Specifically, the sixth rib 11 is located on the rear inner wall of the second slide groove 102 and extends forward. Simultaneously, a seventh rib 7 is provided on the end face of the rib 6 facing away from the insertion end (i.e., the rear side), and this seventh rib 7 extends rearward. The two sixth ribs 11 (one on each side) and the seventh rib 7 (one in the middle) form a three-point contact. This structure of "two ribs extending forward on the left and right + one rib extending backward in the middle" creates a stable three-point contact layout, ensuring that the cover plate 303 is subject to combined constraints in the left-right and front-back directions after installation, resulting in excellent stability.

[0055] The top of the cover plate 303 is provided with an eighth rib 14 extending towards the insertion end along a first direction. The eighth rib 14 interferes with the outer conductor 1. Preferably, there are two eighth ribs 14, respectively located on the third directional sides (left and right sides) of the top of the cover plate 303. These two eighth ribs 14 further enhance the holding force between the cover plate 303 and the outer conductor 1. Moreover, the two eighth ribs 14 are symmetrically distributed left and right, so that both the left and right sides of the top of the cover plate 303 are constrained, avoiding the cover plate from tilting due to unilateral force.

[0056] The rib 6 is provided with at least one pair of ninth ribs 10 for interference engagement with the groove 304 at the bottom of the baffle. Two of the ribs in each pair of ninth ribs 10 extend in opposite directions along a third direction (i.e., one extends to the left and the other to the right). It should be noted that when the rib 6 is provided with two or more pairs of ninth ribs 10 spaced apart along the first direction, the distance between the two ribs on the same side of two adjacent pairs of ninth ribs 10 is less than or equal to 5 mm. When the baffle is installed, the ninth ribs 10 and the groove 304 form an interference engagement, and when the distance between adjacent ribs on the same side is ≤5 mm, stable contact can be achieved, thereby improving crosstalk suppression performance and holding force.

[0057] In this embodiment, multiple ribs (including the fourth rib 8, the fifth rib 9, the ninth rib 10, etc.) are located at the ends of the baffle and / or the outer conductor (i.e., near the edge). The advantage of this design is that the interference fit stroke is shorter, and only the interference force needs to be overcome in the last stroke segment during assembly, thereby reducing the overall insertion force and improving assembly efficiency.

[0058] Example 2 (baffle formed by sheet metal) In this embodiment, the baffle is formed by sheet metal forming, that is, it is made of metal sheet through processes such as stamping and bending. For ease of description, it is referred to as a sheet metal baffle. This embodiment mainly describes the mating structure between the sheet metal baffle and the outer conductor 1. Compared with Embodiment 1, the sheet metal baffle in this embodiment includes a cover plate 303 and a shielding plate 301 that are independent of each other (that is, the cover plate 303 and the shielding plate 301 are separate parts without a connecting rib 302 in the middle), which has the advantages of lower material and mold costs and easier automatic assembly on the strip.

[0059] Please refer to Figures 8 to 12 In this embodiment, the receiving groove includes a limiting groove 20 for installing the cover plate 303 and the shielding plate 301. The cover plate 303 and the shielding plate 301 are each provided with two protrusions 16 at their lower part (i.e., bottom) along the second direction. The protrusions 16 are accommodated in the corresponding limiting grooves 20 for initial positioning, ensuring that the cover plate 303 and the shielding plate 301 are accurately positioned when installed.

[0060] The limiting groove 20 has protrusions 21 on its groove wall. The cover plate 303 and the shielding plate 301 each have a tenth rib 17 and an eleventh rib 18 arranged vertically along a second direction on both sides (i.e., left and right sides) in the third direction. The tenth rib 17 and the eleventh rib 18 extend in opposite directions; for example, the tenth rib 17 may extend forward, and the eleventh rib 18 may extend backward. The protrusions 21 extend in the same direction as the tenth rib 17 (i.e., also forward). The tenth ribs 17 and eleventh ribs 18 on the third direction sides of the cover plate 303 and the shielding plate 301 respectively cooperate with the protrusions 21 on the groove wall of the limiting groove 20 on the same side, forming three-point contact on each side in the third direction. Specifically, on the left side, the tenth rib 17 and the eleventh rib 18 form a set of three-point contacts with the protrusions 21 on the left side of the limiting groove 20; on the right side, the same structure forms another set of three-point contacts. The combined action of the two sets of three-point contacts ensures that the cover plate 303 and the shielding plate 301 are stably constrained on both the left and right sides.

[0061] The distance between the tenth rib 17 and the eleventh rib 18 is less than or equal to 5 mm, and the distance between the eleventh rib 18 and the protrusion 21 is also less than or equal to 5 mm. This distance limit ensures that the effect of "sliding fit with reinforcement" can be achieved during the assembly process: when the eleventh rib 18 enters the outer conductor 1, it is a sliding fit (sliding fit), with a small insertion force, which facilitates automated assembly and reduces assembly difficulty; when it continues to be pressed in until the tenth rib 17 enters the outer conductor 1, local interference (reinforced fit) is formed, generating a stable holding force.

[0062] Furthermore, the cover plate 303 and the shielding plate 301 are provided with a twelfth rib 19 and a thirteenth rib (located below the twelfth rib 19, not shown in the figure) arranged vertically along the second direction in the middle. The extending direction of the twelfth rib 19 and the thirteenth rib is the same as the extending direction of the eleventh rib 18 (i.e., extending backward). These two central ribs can further increase the contact points and improve the holding force and shielding performance.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-speed signal connector, comprising an outer conductor (1) and a baffle (3), wherein a plurality of terminal assemblies (2) are arrayed within the outer conductor (1), the insertion direction of the connector is defined as a first direction, the extension direction of the terminal assemblies (2) is defined as a second direction, and directions perpendicular to the first and second directions are defined as third directions; characterized in that, The outer conductor (1) has a receiving groove for installing the baffle (3); The baffle (3) and / or the outer conductor (1) are provided with a plurality of protruding ribs, and the baffle (3) and the outer conductor (1) form an interference fit through the protruding ribs; The plurality of said ribs include at least three ribs, at least two of the at least three ribs are distributed along a second direction or a third direction, and the extension directions of the at least three ribs are not exactly the same, for forming a multi-point contact between the baffle (3) and the outer conductor (1).

2. The high-speed signal connector according to claim 1, characterized in that, A shielding wall (5) is provided between two adjacent terminal assemblies (2) located in the same row along a third direction. The shielding wall (5) extends along a first direction and cooperates with the baffle (3) to isolate each terminal assembly (2) from each other.

3. The high-speed signal connector according to claim 2, characterized in that, The baffle (3) is formed by die casting. The baffle (3) includes a cover plate (303) and at least one shielding plate (301). The cover plate (303) and the shielding plate (301) are connected by connecting ribs (302). When there are multiple shielding plates (301), adjacent shielding plates (301) are also connected by connecting ribs (302).

4. The high-speed signal connector according to claim 3, characterized in that, The shielding wall (5) has a protruding rib (6) at the top along the second direction, and the baffle (3) has a groove (304) at the bottom along the second direction that cooperates with the protruding rib (6).

5. The high-speed signal connector according to claim 4, characterized in that, The receiving groove is a sliding groove, which is disposed on the side wall of the outer conductor (1) at the position corresponding to the end of the cover plate (303) and the shielding plate (301); the sliding groove includes a first sliding groove (101) for accommodating the shielding plate (301) and a second sliding groove (102) for accommodating the cover plate (303), and the first sliding groove (101) and the second sliding groove (102) are spaced apart along a first direction.

6. The high-speed signal connector according to claim 5, characterized in that, The shielding plate (301) is provided with a first rib (12), a second rib (13) and a third rib (15) at the top along the second direction. The first rib (12) and the third rib (15) are located on the top sides and extend backward along the first direction, respectively. The second rib (13) is located in the middle of the top and extends forward along the first direction. The first rib (12), the second rib (13) and the third rib (15) form a three-point contact.

7. The high-speed signal connector according to claim 6, characterized in that, The first slide groove (101) has two symmetrically arranged ones, which are respectively used to cooperate with the corresponding ends of the shielding plate (301); the two opposite side walls of each first slide groove (101) are respectively provided with a fourth rib (8) and a fifth rib (9), which are used to interfere with the shielding plate (301) and thus form a stable contact.

8. The high-speed signal connector according to claim 5, characterized in that, The second slide groove (102) has two symmetrically arranged slide grooves. A sixth rib (11) extending in the first direction toward the insertion end is provided on one side wall of the two second slide grooves (102). A seventh rib (7) is provided on the end face of the rib (6) facing away from the insertion end. The two sixth ribs (11) and the seventh rib (7) form a three-point contact.

9. The high-speed signal connector according to claim 8, characterized in that, The top of the cover plate (303) is provided with an eighth rib (14) extending toward the plug end in the first direction, and the eighth rib (14) interferes with the outer conductor (1).

10. The high-speed signal connector according to claim 9, characterized in that, There are two eighth ribs (14), which are respectively located on both sides of the top of the cover plate (303).

11. The high-speed signal connector according to claim 4, characterized in that, The rib (6) is provided with at least one pair of ninth ribs (10) for interference cooperation with the groove (304) at the bottom of the baffle (3); the two ribs in each pair of ninth ribs (10) extend in opposite directions along the third direction, and the distance between the two ribs is less than or equal to 5 mm.

12. The high-speed signal connector according to claim 2, characterized in that, The baffle (3) is formed by sheet metal forming and includes a cover plate (303) and a shielding plate (301) that are independent of each other.

13. The high-speed signal connector according to claim 12, characterized in that, The receiving groove includes a limiting groove (20) for installing the cover plate (303) and the shielding plate (301). The cover plate (303) and the shielding plate (301) are each provided with two bosses (16) at the lower part along the second direction. The bosses (16) are accommodated in the corresponding limiting grooves (20).

14. The high-speed signal connector according to claim 13, characterized in that, The wall of the limiting groove (20) is provided with protrusions (21). The cover plate (303) and the shielding plate (301) are provided with tenth protrusions (17) and eleventh protrusions (18) arranged vertically along the second direction on both sides of the third direction. The extension directions of the tenth protrusions (17) and eleventh protrusions (18) are opposite, and the extension direction of the protrusions (21) is the same as that of the tenth protrusions (17). The tenth protrusions (17) and eleventh protrusions (18) on both sides of the third direction of the cover plate (303) and the shielding plate (301) respectively cooperate with the protrusions (21) on the wall of the limiting groove (20) on the same side, forming three-point contact on each side of the third direction.

15. The high-speed signal connector according to claim 14, characterized in that, The cover plate (303) and the shielding plate (301) are provided with a twelfth rib (19) and a thirteenth rib arranged vertically along the second direction in the middle. The extension direction of the twelfth rib (19) and the thirteenth rib is the same as the extension direction of the eleventh rib (18).

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