High-speed connector

Abstract

The invention relates to a high-speed connector, which solves the problem of poor shielding effect of the existing connector, and comprises an insulated fixed seat and a signal terminal, the connector comprises a fixed seat, more than one substrate assembly arranged side by side is arranged in the fixed seat, each substrate assembly comprises an insulated lead frame, a row of signal terminals arranged on the lead frame and a first shielding sheet, the first shielding sheet is located between two adjacent lead frames, and the connector further comprises more than one second shielding sheet and more than one shielding barrier. A second shielding sheet is arranged between every two adjacent signal terminals, and the shielding barriers are inserted into the shielding sheet positioning seams. The first shielding sheet shields and isolates two adjacent terminals along the length direction of the lead frame, the second shielding sheet and the shielding barrier shield and isolates two adjacent terminals vertical to the direction of the lead frame, and the first shielding sheet, the second shielding sheet and the shielding barrier are communicated. Therefore, the periphery of each signal terminal is isolated into an independent shielding area, and the shielding effect is good.

Description

Technical Field

[0001] The present invention relates to the field of electronic accessories, and in particular to a high-speed connector. Background Art

[0002] The shielding structure of existing connectors usually sets a ground terminal between the signal terminals for shielding, and sets a ground plate between two adjacent rows of signal terminals. This structure cannot shield the areas around the signal terminals, and the shielding effect is poor. During the plugging and unplugging process, the signal is greatly affected, and hot plugging cannot be achieved. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem of poor shielding effect of existing connectors, and a high-speed connector solution is adopted to solve this problem.

[0004] The technical solution adopted to solve the technical problem proposed by the present invention is as follows: the high-speed connector of the present invention includes an insulating fixing seat and a signal terminal; the fixing seat is provided with one or more substrate assemblies arranged side by side, the substrate assembly includes an insulating lead frame, a row of signal terminals arranged on the lead frame and a first shielding sheet, the row of signal terminals is arranged along the length direction of the lead frame, the first shielding sheet is located between two adjacent lead frames, the signal terminal includes a terminal plug-in portion, a terminal mounting portion and a terminal connecting portion connecting the terminal plug-in portion and the terminal mounting portion, the terminal plug-in portion and the terminal mounting portion are respectively led out from two side surfaces of the lead frame, the terminal connecting portion The part is located in the lead frame, and the connector also includes one or more second shielding plates and one or more shielding fences. The second shielding plates are arranged vertically on the lead frame, and a second shielding plate is provided between two adjacent signal terminals. The first shielding plates are each provided with a terminal plug-in shielding plate corresponding to the terminal plug-in plate on the same substrate assembly. A shielding plate positioning seam is formed between two adjacent terminal plug-in shielding plates on the same first shielding plate, and the shielding fence is inserted into the shielding plate positioning seam. The first shielding plate, the second shielding plate and the shielding fence isolate the periphery of each signal terminal into a separate shielding area, and the first shielding plate, the second shielding plate and the shielding fence are connected.

[0005] The technical solutions that further limit the present invention include: The shielding fence includes a third shielding piece and an insulating third shielding piece positioning member. The third shielding piece is fixed in the third shielding piece positioning member. The third shielding piece is provided with an arc-shaped elastic positioning portion. The two sides of the elastic positioning portion are respectively clamped with the side surfaces of the terminal plug-in portion shielding piece on both sides of the shielding piece positioning seam. There is more than one elastic positioning portion in each shielding piece positioning seam.

[0006] The arc-shaped elastic positioning portion is in the shape of a hook, and a shielding plate slot is provided on the third shielding plate positioning member. The elastic positioning portion is located in the shielding plate slot, and the two sides of the hook-shaped arc-shaped elastic positioning portion protrude from the two sides of the third shielding plate positioning member respectively. The two sides of the hook-shaped arc-shaped elastic positioning portion are clamped with the side surfaces of the terminal plug-in portion shielding plate on both sides of the positioning seam.

[0007] An elastic positioning portion is provided at the upper and lower ends of the positioning seam of each shielding piece.

[0008] The fixing seat is provided with a third shielding piece positioning groove that cooperates with the third shielding piece positioning piece, the third shielding piece is clamped in the third shielding piece positioning groove, the third shielding piece is provided with a third shielding piece positioning portion protruding from the two side walls of the shielding piece slot, the fixing seat is provided with a third shielding piece positioning groove that cooperates with the third shielding piece positioning portion, and the third shielding piece positioning portion is clamped in the third shielding piece positioning groove.

[0009] The first shielding piece is snap-connected to the lead frame, and the lead frame and the first shielding piece are both provided with a second shielding piece positioning groove that cooperates with the second shielding piece. The second shielding piece positioning groove on the lead frame is provided with a snap-connecting protrusion that cooperates with the second shielding piece, and the second shielding piece positioning groove of the first shielding piece is provided with a connecting protrusion that contacts the second shielding piece. The fixing frame is provided with a first shielding piece snap-connecting groove that cooperates with the first shielding piece, and the signal terminals on both sides of the same lead frame are provided with terminal positioning plugs. The fixing seat is provided with a terminal positioning slot that cooperates with the terminal positioning plug.

[0010] Shielding positioning pieces are provided on both sides of the first shielding piece corresponding to the signal terminals. The shielding positioning pieces are located on the outer side walls of the fixing seat. The shielding positioning pieces are provided with elastic positioning cards tilted along the plugging direction.

[0011] The terminal plug-in portion includes a fork, and the top of the fork is provided with an arc-shaped finger contact portion. The arc-shaped surfaces of the two finger contact portions are convexly arranged opposite to each other, and a terminal positioning seam is provided in the middle of the fork. The fixing piece is provided with a terminal positioning rib that cooperates with the terminal positioning seam.

[0012] The fixing seat is provided with guide pins of different widths.

[0013] The signal terminals are differential signal pairs or single-ended terminals.

[0014] Through the above technical solution, the beneficial effects of the present invention are as follows: the first shielding plate of the high-speed connector of the present invention shields and isolates two adjacent terminals along the length direction of the lead frame, the second shielding plate and the shielding fence shield and isolate two adjacent terminals in the direction perpendicular to the lead frame, and the first shielding plate, the second shielding plate and the shielding fence are connected to each other, thereby isolating the periphery of each signal terminal into a separate shielding area, thereby achieving a good shielding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the high-speed connector of the present invention.

[0016] Figure 2 This is a schematic diagram of a partial exploded structure of the high-speed connector of the present invention.

[0017] Figure 3 It is a schematic diagram of the cross-section structure of the high-speed connector of the present invention along the width direction.

[0018] Figure 4 It is a schematic diagram of the cross-section structure of the high-speed connector of the present invention along the height direction.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the substrate assembly of the high-speed connector of the present invention.

[0020] Figure 6 The figure is a schematic diagram of the exploded structure of the substrate assembly of the high-speed connector of the present invention.

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the shielding barrier of the high-speed connector of the present invention.

[0022] Figure 8 This is a schematic diagram of the exploded structure of the shielding barrier of the high-speed connector of the present invention.

[0023] Figure 9 It is a schematic diagram of the three-dimensional structure of the fixing seat of the high-speed connector of the present invention.

[0024] In the figure, the fixing seat 10, the third shielding plate positioning member positioning groove 11, the third shielding plate positioning groove 12, the terminal positioning rib 13, the first shielding plate slot 14, the terminal positioning slot 15, the guide pin 16, the signal terminal 20, the terminal plug-in portion 21, the fork 211, the finger contact portion 212, the terminal positioning slit 213, the terminal mounting portion 22, the terminal connecting portion 23, the terminal positioning plug 24, the substrate assembly 30, the lead frame 31, the square hole 31 1. First shielding sheet -32, terminal plug-in shielding sheet -321, shielding sheet positioning slit -322, shielding positioning sheet -323, elastic positioning card -3231, first shielding sheet block -324, second shielding sheet -40, shielding fence -50, third shielding sheet -51, elastic positioning part -511, third shielding sheet positioning part -512, third shielding sheet positioning member -52, shielding sheet slot -521, second shielding sheet positioning slot -60, snap-on protrusion -61, connecting protrusion -62. DETAILED DESCRIPTION

[0025] The structure of the present invention is further described below with reference to the accompanying drawings.

[0026] Reference Figures 1 to 9The high-speed connector of the present invention includes an insulating fixing seat 10 and a signal terminal 20; the fixing seat can be selected as a plastic part, which is convenient for manufacturing and processing. There is one or more substrate assemblies 30 arranged side by side in the fixing seat 10, and the substrate assembly 30 includes an insulating lead frame 31, a row of signal terminals arranged on the lead frame 31, and a first shielding piece 32. The lead frame can be selected as a plastic part, which is convenient for manufacturing and processing. A row of signal terminals is arranged along the length direction of the lead frame 31, and the first shielding piece 32 is located between two adjacent lead frames 31. The signal terminal 20 includes a terminal plug-in portion 21, a terminal mounting portion 22, and a terminal connecting portion 23 connecting the terminal plug-in portion and the terminal mounting portion 22. The terminal plug-in portion 21 and the terminal mounting portion 22 are respectively led out from two side surfaces of the lead frame 31, and the terminal connecting portion 23 is located at the lead In the frame 31, the connector also includes one or more second shielding plates 40 and one or more shielding fences 50. The second shielding plates 40 are arranged vertically on the lead frame 31. A second shielding plate 40 is provided between each adjacent signal terminal 20. The first shielding plate 32 is provided with a terminal plug-in portion shielding plate 321 corresponding to the terminal plug-in portion 21 on the same substrate assembly 30. A shielding plate positioning seam 322 is formed between two adjacent terminal plug-in portion shielding plates 321 on the same first shielding plate 32. The shielding fence 50 is inserted into the shielding plate positioning seam 322. The first shielding plate 32, the second shielding plate 40 and the shielding fence 50 isolate the periphery of each signal terminal 20 into a separate shielding area. The first shielding plate 32, the second shielding plate 40 and the shielding fence 50 are connected and arranged. The first shielding piece 32 shields and isolates two adjacent terminals along the length direction of the lead frame 31, and the second shielding piece 40 and the shielding fence 50 shield and isolate two adjacent terminals in the direction perpendicular to the lead frame 31. The first shielding piece 32, the second shielding piece 40 and the shielding fence 50 are connected to form a shielding net, thereby isolating the periphery of each signal terminal 20 into a separate shielding area, thereby achieving a good shielding effect.

[0027] In this embodiment, the first shielding sheet is clamped with the lead frame, a square hole 311 is provided on the lead frame, and a first shielding sheet clamping block 324 is provided on the first shielding sheet to be clamped with the square hole. The lead frame 31 and the first shielding sheet 32 ​​are both provided with a second shielding sheet positioning groove 60 that cooperates with the second shielding sheet 40. The second shielding sheet vertically passes through the second shielding sheet positioning groove 60 on each lead frame 31 and the first shielding sheet 32 ​​to isolate adjacent signal terminals of the same lead frame. The second shielding sheet positioning groove 60 on the lead frame 31 is provided with a clamping block that cooperates with the second shielding sheet. The second shielding sheet is positioned by the connecting protrusion 61, and the connecting protrusion is clamped and positioned by the clamping protrusion. The second shielding sheet positioning groove 60 of the first shielding sheet 32 ​​is provided with a connecting protrusion 62 that contacts the second shielding sheet 40, thereby connecting the first shielding sheet and the second shielding sheet to form a shielding net. The fixing seat is provided with a first shielding sheet clamping groove 14 that cooperates with the first shielding sheet. The first shielding sheet is clamped and positioned in the first shielding sheet clamping groove 14. The signal terminals 20 on both sides of the same lead frame are provided with terminal positioning plugs 24, and the fixing seat 10 is provided with a terminal positioning slot 15 that cooperates with the terminal positioning plugs. During installation, the lead frame and the signal terminal are integrally formed and clamped to the first shielding sheet, and then the second shielding sheet is clamped in the second shielding sheet positioning groove, and then the whole is clamped to the fixing seat. The overall installation is simple and firm. No additional tools or complicated assembly processes are required, which improves assembly efficiency. The first shielding sheet is a metal spacer used to separate different circuit areas, playing the role of electrical isolation and mechanical support. By connecting the protrusion to the second shielding sheet, the first shielding sheet can participate in the grounding system, thereby enhancing the grounding effect, reducing signal reflection and crosstalk, and improving signal transmission quality.

[0028] In this embodiment, shielding positioning pieces 323 are provided on either side of the first shielding piece 32, corresponding to the signal terminals 20. These are located on the outer sidewalls of the mounting base 10 and are equipped with elastic positioning tabs 3231, angled along the insertion direction. These elastic positioning tabs 3231 ensure secure insertion and positioning of the connector. Furthermore, the shielding positioning pieces provided on either side of the signal terminals also provide shielding.

[0029] In this embodiment, the terminal insertion portion 21 includes a fork 211, each with an arc-shaped finger contact portion 212 at its top. The two curved surfaces of the finger contact portions 212 are arranged inwardly and face each other, allowing the mating terminal to be inserted tightly and quickly during insertion. A terminal positioning slot 213 is provided in the middle of the fork 211, and the fixing member 10 is provided with a terminal positioning rib 13 that cooperates with the terminal positioning slot 213. During installation, the terminal positioning rib inserts into the terminal positioning slot, precisely positioning the terminal and ensuring signal transmission. In this embodiment, the terminal positioning slot 213 is 0.3±0.01mm, and the terminal positioning rib 13 is 0.27mm±0.01, forming a precise positioning structure similar to a guide rail. The terminal positioning slot is slightly larger than the width of the terminal positioning rib. This ingenious design not only ensures smooth insertion of the terminal positioning rib into the terminal positioning slot, enabling quick installation, but also effectively limits excessive horizontal movement of the signal terminal, ensuring precise positioning of the signal terminal within the fixing seat. Precise positioning avoids signal transmission problems such as poor signal contact and signal interruption caused by installation deviation, providing a solid guarantee for the normal operation of the equipment. In addition, it enhances mechanical stability and reduces the impact of vibration. After the terminal is positioned and inserted into the terminal positioning gap, the friction generated on the contact surface between the two becomes a key factor in the stable installation of the signal terminal. This friction can effectively prevent the terminal from loosening or displacement when subjected to external forces (such as vibration and pulling), ensuring that the signal terminal is always in the correct installation position. At the same time, the matching design can also disperse the stress on the terminal, improve the mechanical strength and reliability of the signal terminal, and firmly fix the terminal in the fixing seat. This design can significantly reduce the impact of vibration on the signal terminal connection, ensure the stable operation of the equipment, reduce the failure rate caused by loose terminals, and extend the service life of the equipment. In this embodiment, the signal terminal is a single-ended terminal. In specific implementation, the signal terminal can also be set as a differential signal terminal as needed.

[0030] In this embodiment, the shielding fence 50 includes a third shielding sheet 51 and an insulating third shielding sheet positioning member 52. The third shielding sheet is a metal shielding sheet. The third shielding sheet 51 is fixed within the third shielding sheet positioning member 52. The third shielding sheet 51 is provided with an arc-shaped elastic positioning portion 511. The two sides of the elastic positioning portion 511 are respectively engaged with the side surfaces of the terminal plug-in shielding sheet 321 on both sides of the shielding sheet positioning slot 322. Each shielding sheet positioning slot 322 is provided with one or more elastic positioning portions 511. The terminal plug-in shielding sheet isolates two adjacent signal terminals on different lead frames, and the terminal plug-in shielding sheet isolates two adjacent signal terminals on the same lead frame, thereby isolating the periphery of each signal terminal 20 into a separate shielding area, thereby improving the shielding effect. In this embodiment, the arc-shaped elastic positioning portion 511 is hook-shaped. The third shielding sheet positioning member 52 is provided with a shielding sheet slot 521. The elastic positioning portion 511 is located in the shielding sheet slot 521. The two sides of the hook-shaped arc-shaped elastic positioning portion 511 protrude from the two sides of the third shielding sheet positioning member 52. The two sides of the hook-shaped arc-shaped elastic positioning portion 511 are clamped with the side surfaces of the terminal plug-in portion shielding sheet 321 on both sides of the shielding sheet positioning slot 322. Each shielding sheet positioning slot 322 has an elastic positioning portion 511 at both ends. When the shielding fence is clamped in place, the shielding fence also clamps the first shielding sheet in place, thereby forming a stable connection structure. In this embodiment, a third shielding piece positioning member positioning groove 11 is provided in the fixing base 10 and cooperates with the third shielding piece positioning member 52. The third shielding piece 51 is snapped into the third shielding piece positioning member positioning groove 11. The third shielding piece 51 is provided with a third shielding piece positioning portion 512 protruding from the two side walls of the shielding piece slot 521. A third shielding piece positioning groove 12 is provided in the fixing base 10 and cooperates with the third shielding piece positioning portion 512. The third shielding piece positioning portion 512 is snapped into the third shielding piece positioning groove 12. This can form a tight electrical connection between the shielding fence and the fixing base, reduce gaps for electromagnetic leakage, and effectively prevent the penetration of electromagnetic waves.

[0031] In this embodiment, guide pins 16 of different widths are provided on the fixing base 10, thereby achieving blind insertion of the male and female connectors and preventing reverse insertion.

[0032] Although the specific embodiments of the present invention are described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of the present invention. Various modifications and variations that can be made by those skilled in the art without creative effort within the scope described in the claims still fall within the scope of protection of the present invention.

Claims

1. A high-speed connector comprising an insulating fixing seat and a signal terminal; characterized in that: The fixing seat is provided with more than one substrate assembly arranged side by side, and the substrate assembly includes an insulating lead frame, a row of signal terminals arranged on the lead frame, and a first shielding sheet. The row of signal terminals is arranged along the length direction of the lead frame, and the first shielding sheet is located between two adjacent lead frames. The signal terminal includes a terminal plug-in portion, a terminal mounting portion, and a terminal connecting portion connecting the terminal plug-in portion and the terminal mounting portion. The terminal plug-in portion and the terminal mounting portion are respectively led out from two sides of the lead frame. The terminal connecting portion is located in the lead frame. The connector also includes more than one second Two shielding plates and one or more shielding fences, the second shielding plate is arranged vertically on the lead frame, a second shielding plate is provided between two adjacent signal terminals, the first shielding plate is provided with a terminal plug-in shielding plate corresponding to the terminal plug-in portion on the same substrate assembly, a shielding plate positioning seam is formed between two adjacent terminal plug-in shielding plates on the same first shielding plate, the shielding fence is inserted into the shielding plate positioning seam, the first shielding plate, the second shielding plate and the shielding fence isolate the periphery of each signal terminal into a separate shielding area, and the first shielding plate, the second shielding plate and the shielding fence are connected.

2. A high-speed connector according to claim 1, characterized in that: The shielding fence includes a third shielding piece and an insulating third shielding piece positioning member. The third shielding piece is fixed in the third shielding piece positioning member. The third shielding piece is provided with an arc-shaped elastic positioning portion. The two sides of the elastic positioning portion are respectively clamped with the side surfaces of the terminal plug-in portion shielding piece on both sides of the shielding piece positioning seam. There is more than one elastic positioning portion in each shielding piece positioning seam.

3. A high-speed connector according to claim 2, characterized in that: The arc-shaped elastic positioning portion is in the shape of a hook, and a shielding plate slot is provided on the third shielding plate positioning member. The elastic positioning portion is located in the shielding plate slot, and the two sides of the hook-shaped arc-shaped elastic positioning portion protrude from the two sides of the third shielding plate positioning member respectively. The two sides of the hook-shaped arc-shaped elastic positioning portion are clamped with the side surfaces of the terminal plug-in portion shielding plate on both sides of the positioning seam.

4. A high-speed connector according to claim 2, characterized in that: An elastic positioning portion is provided at the upper and lower ends of the positioning seam of each shielding piece.

5. A high-speed connector according to claim 2, characterized in that: The fixing seat is provided with a third shielding piece positioning groove that cooperates with the third shielding piece positioning piece, the third shielding piece is clamped in the third shielding piece positioning groove, the third shielding piece is provided with a third shielding piece positioning portion protruding from the two side walls of the shielding piece slot, the fixing seat is provided with a third shielding piece positioning groove that cooperates with the third shielding piece positioning portion, and the third shielding piece positioning portion is clamped in the third shielding piece positioning groove.

6. The high-speed connector according to claim 1, wherein: The first shielding piece is snap-connected to the lead frame, and the lead frame and the first shielding piece are both provided with a second shielding piece positioning groove that cooperates with the second shielding piece. The second shielding piece positioning groove on the lead frame is provided with a snap-connecting protrusion that cooperates with the second shielding piece, and the second shielding piece positioning groove of the first shielding piece is provided with a connecting protrusion that contacts the second shielding piece. The fixing frame is provided with a first shielding piece snap-connecting groove that cooperates with the first shielding piece, and the signal terminals on both sides of the same lead frame are provided with terminal positioning plugs. The fixing seat is provided with a terminal positioning slot that cooperates with the terminal positioning plug.

7. The high-speed connector according to claim 1, wherein: Shielding positioning pieces are provided on both sides of the first shielding piece corresponding to the signal terminals. The shielding positioning pieces are located on the outer side walls of the fixing seat. The shielding positioning pieces are provided with elastic positioning cards tilted along the plugging direction.

8. The high-speed connector according to claim 1, wherein: The terminal plug-in portion includes a fork, and the top of the fork is provided with an arc-shaped finger contact portion. The arc-shaped surfaces of the two finger contact portions are convexly arranged opposite to each other, and a terminal positioning seam is provided in the middle of the fork. The fixing piece is provided with a terminal positioning rib that cooperates with the terminal positioning seam.

9. The high-speed connector according to claim 1, wherein: The fixing seat is provided with guide pins of different widths.

10. The high-speed connector according to claim 1, wherein: The signal terminals are differential signal pairs or single-ended terminals.

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