Cable connector and method of assembling the same

Abstract

The application relates to a cable connector and an assembling method thereof, which comprises a first shielding plate, a second shielding plate, a plurality of terminals and a plurality of cables, the plurality of terminals are arranged in a row along a left-right direction and comprise alternately arranged signal terminals and ground terminals, the end of each cable is exposed with two signal wire cores and an insulation layer and a shielding layer wrapping the two signal wire cores, each terminal comprises a contact part, a tail part and a middle part, and the signal wire core of each cable is connected to the tail part of the corresponding signal terminal one by one; the cable is clamped between the first shielding plate and the second shielding plate, the first shielding plate and the second shielding plate are provided with a plurality of arc-shaped parts, the arc-shaped parts clamp the corresponding shielding layers to fix the cables one by one; one independent insulation block is fixed to the middle part of each terminal, the insulation block is fixed to the first shielding plate, and thus the row of terminals is located between the first shielding plate and the second shielding plate. The terminals and the cables of the application are supported by the first shielding plate and the second shielding plate and located between the two, which not only can overcome the assembling problem, but also can enhance the shielding effect.

Description

Technical Field

[0001] This application relates to electrical connection technology, and more particularly to a cable connector. Background Technology

[0002] In conventional data processing and transmission systems, chips such as central processing units (CPUs) or ASICs are mounted on the main circuit board and transmit data to secondary or peripheral components via traces on the board. With the increasing speed of transmission and the trend towards decentralization, the use of cables to replace circuit board traces is becoming more prevalent, such as the Co-Packaged Copper (CPC) currently being developed by the OIF (Optical Information Foundation). However, the specific design schemes for connecting chips to different secondary components are not identical. CN102365907A discloses a connection method where chip components are connected to external I / O connectors via a bypass cable assembly. The structure of the bypass cable assembly is also described and shown in detail; however, the cable and terminal structure of the bypass cable assembly is relatively simple and bulky, making it unsuitable for forming a truly high-speed transmission cable assembly.

[0003] Therefore, it is indeed necessary to provide a cable connector with an improved structure to overcome the above-mentioned defects. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a cable connector and its assembly method, which improves the shielding effect.

[0005] To solve the above problems, the present invention can adopt the following technical solution: a cable connector, comprising a first shielding plate, a second shielding plate, multiple terminals and multiple cables, wherein the multiple terminals are arranged in a row along the left-right direction and include multiple signal terminals and multiple grounding terminals alternately arranged, each cable has two exposed signal cores at its end and an insulating layer and a shielding layer covering the two signal cores, each terminal includes a contact portion, a tail portion and a middle portion connecting the contact portion and the tail portion, and each signal core of each cable is connected to the tail portion of the corresponding signal terminal; characterized in that: the cables are clamped between the first and second shielding plates, the first and second shielding plates have multiple arc-shaped portions, the arc-shaped portions clamp the corresponding shielding layers to fix the cables one by one; each terminal has an independent insulating block fixed in its middle portion, the insulating block being fixed to the first shielding plate, thus, a row of terminals is located between the first and second shielding plates.

[0006] To solve the above problems, the present invention can adopt the following technical solution: an assembly method for a cable connector, characterized in that the assembly method includes: Step 1, providing a row of terminals, each terminal including a contact portion, a tail portion, and a middle portion connecting the contact portion and the tail portion, the row of terminals including multiple signal terminals and multiple ground terminals alternately arranged, and each middle portion having an independent insulating block fixed thereon; Step 2, providing a first shielding plate, the row of terminals being assembled to the first shielding plate, the first shielding plate having multiple arc-shaped portions; Step 3, providing a row of cables, each cable having two exposed signal cores at its end and an insulating layer and a shielding layer covering the two signal cores, the row of cables being assembled to the first shielding plate, each signal core of the cable being connected one-to-one to the tail portion of the corresponding signal terminal, the arc-shaped portion being bent to clamp the shielding layer of the cable; Step 4, providing a second shielding plate, the second shielding plate being assembled to the first shielding plate, thus, the terminals and cables are clamped between the first shielding plate and the second shielding plate.

[0007] Compared with the prior art, the terminals and cables of the present invention are supported by the first and second shielding plates and located between them, which not only overcomes the assembly problem, but also enhances the shielding effect. Attached Figure Description

[0008] Figure 1 This is a perspective view of the cable connector of the present invention.

[0009] Figure 2 yes Figure 1 A three-dimensional view from another angle.

[0010] Figure 3 yes Figure 1 Side view.

[0011] Figure 4 yes Figure 1 A three-dimensional exploded view.

[0012] Figure 5 yes Figure 4 Another perspective of the exploded 3D view.

[0013] Figure 6 yes Figure 4 A three-dimensional view of some components after assembly, in which terminals are fixed to insulating blocks and the first insulating plate is fixed to the first shielding plate.

[0014] Figure 7 yes Figure 6 A three-dimensional view of the middle terminal fixed behind the first shielding plate.

[0015] Figure 8 yes Figure 7 A three-dimensional view from another angle.

[0016] Figure 9 is Figure 4 a perspective view after partial assembly of the component parts, where the cable is assembled into Figure 7 the first shielding plate in

[0017] Figure 10 is Figure 9 a perspective view from another angle.

[0018] Main component symbol description: Cable connector 100 Circuit board 200 First shielding plate 10 Arc portion 11 Locking hole 12 Side edge 13 Positioning hole 14 Second shielding plate 20 Arc portion 21 Locking portion 22 Positioning hole 23 Front end portion 24 Terminal 30 Signal terminal 30S Ground terminal 30G Contact portion 31 Intermediate portion 32 Tail portion 33 Cable 40 Signal wire core 41 Insulation layer 42 Shielding layer 43 Insulating block 51 First part 511 Second part 512 First insulating plate 52 First spacer rib 521 Fixing rib 522 Fixing hole 523 Positioning rib 524 Opening 525 Second insulating plate 53 Second spacer rib 531 Positioning rib 532.

[0019] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0021] As shown in Figure 1-3 , the present invention discloses a cable connector 100. The cable connector 100 is in a vertical sheet shape. The cable 40 extends out from the upper end and extends out at a certain angle. The contact portion 31 of the terminal extends out from the lower end, which is in an arc-shaped bend and has a certain elasticity. It can directly abut against the conductive gasket of the circuit board 200, such as the main board, the circuit board of the subsystem, or the circuit substrate in the chip module, so as to achieve electrical connection.

[0022] Figure 4-5, the cable connector 100 includes a first shielding plate 10, a second shielding plate 20, a plurality of terminals 30 and a plurality of cables 40. The plurality of terminals 30 are arranged in a row in the left-right direction and include a plurality of signal terminals 30S and a plurality of ground terminals 30G which are arranged alternately. When transmitting high-frequency signals, adjacent signal terminals 30S form a differential signal terminal pair, and ground terminals 30G are arranged on both sides of each differential signal terminal pair. The terminals arranged in a row are aligned with each other in the left-right direction. Here, the left-right direction is only for convenient description and is the direction of terminal arrangement. Referring to Figure 6 As shown, each terminal 30 includes a contact portion 31, a tail portion 33 and an intermediate portion 32 connecting the contact portion and the tail portion. The contact portion 31 is J-shaped and elastic. Referring to Figure 2 and Figure 9 As shown, at the end of each cable 40, two signal wire cores 41 are exposed, and an insulating layer 42 and a shielding layer 43 wrapping the two signal wire cores; the signal wire cores 41 of each cable are connected to the tail portions 33 of the corresponding signal terminals 31 one by one. A row of cables 40 is clamped between the first shielding plate 10 and the second shielding plate 20. The first and second shielding plates are provided with a plurality of arc portions 11, 21. The arc portions 11, 21 clamp the corresponding shielding layers 43 to fix the cables 40 one by one. Each terminal is fixed with an independent insulating block 51 at its intermediate portion 32, and the insulating block 51 is fixed on the first shielding plate 10. Thus, a row of terminals 30 is located between the first and second shielding plates 10, 20. It can be seen that for the cable connector of the present invention, the main supporting elements are the first and second shielding plates, and the insulating material is mainly used to support the terminals and provide electrical insulation between the non-ground terminals and the shielding plates. Thus, the problems in the prior art where an insulating material for main support and a shielding plate for shielding function are both required can be overcome. The main body of the cable connector 100 of the present invention is supported by the shielding plates, and at the same time, the shielding effect of a high-frequency connector is satisfied. The first shielding plate 10 extends downward to the contact portion 31, upward to the cable 40, and extends in the left-right direction to the left and right outsides of the terminals and the cables, forming a good shielding space. The left and right sides of the second shielding plate 20 are bent with locking portions 22, and the locking portions 22 are fixed in the locking holes 12 provided on the first shielding plate to achieve a fixing effect. A first insulating plate 52 and a second insulating plate 53 are further provided inside the cable connector. The first and second insulating plates mainly play an electrical insulation role and can be made thinner.

[0023] Figure 6-10 , which generally shows the assembly process of the cable connector 100.

[0024] Refer Figure 6-8As shown, multiple arc-shaped portions 11 are provided at the upper end of the first shielding plate 10. The arc-shaped portions 11 are formed by tearing the first shielding plate 10. Initially, they are in a straight vertical shape without bending, and after the cable is placed, they are bent into a semi-arc-shaped structure that matches the outer shape of the cable. The left and right sides of the first shielding plate 10 are vertically bent to form side edges 13. The first insulating plate 52 is first assembled to the first shielding plate 10. Combining Figure 5 As shown, the positioning ribs 524 provided on one side of the first insulating plate can be accommodated in the positioning holes 14 provided on the first shielding plate, achieving a good matching and positioning effect between the two. Multiple first spacing ribs 521 and fixing ribs 522 are provided on the first insulating plate 52 near the arc-shaped portion 11. Multiple fixing holes 523 are provided below the spacing ribs on the first insulating plate 52 and the first shielding plate 10.

[0025] Refer Figure 6-8 As shown, each terminal 30 has an independent insulating block 51 fixed to its middle portion 32. In this embodiment, the insulating block is injection-molded onto the middle portion 32 of the terminal. The insulating block 51 includes a rectangular first portion 511 and an elliptical second portion 512. The middle portion 32 is fixed to the first portion 511. The terminal 30 with the insulating block is assembled to the first insulating plate 52, and the elliptical second portion 512 is inserted and fixed in the fixing holes 523 of the first insulating block and the first shielding plate. It can be fixed by riveting, such as hot riveting. From Figure 8 it can be seen that the second portion 512 can pass through the outer surface of the first shielding plate.

[0026] Refer Figure 6-8 As shown, the tail portion 33 of the terminal is disposed between adjacent first spacing ribs 521, thus positioning the tail portion 33 of the terminal well and facilitating the subsequent welding of the cable 40. The tail portion 33 of the signal terminal 30S passes backward through the first spacing ribs 521 but terminates at the rear end surface of the first insulating plate 52. The tail portion 33 of the ground terminal 30G is bent and passes through the opening 525 provided on the first insulating plate, and abuts against the first shielding plate 10 and can be welded and fixed again.

[0027] Refer Figure 9-10 , subsequently, a row of cables 40 is assembled on a row of terminals. The exposed signal core wire 41 is placed above the tail portion 33 of the signal terminal to achieve electrical contact, and the two can be further fixed by spot welding. The exposed shielding layer 43 of the cable is located on the first shielding plate 10 and is supported by the first shielding plate 10. The arc-shaped portion 11 is bent to clamp the shielding layer 43 of the cable, thereby fixing the cable 40 to the first shielding plate. The fixing rib 522 provided on the other side of the arc-shaped portion 11 of the first insulating plate cooperates with the arc-shaped portion 11 to further position the cable 40 on the first shielding plate.

[0028] Refer Figure 9-10, the second insulating plate 53 is installed from top to bottom between the terminal 30 and the cable 40. The second spacing ribs 531 provided on the second insulating plate are located between the first spacing ribs of the first insulating plate. It not only positions the terminal in the left - right direction, but also presses down on the upper surface of the terminal, thereby fixing the terminal in the up - down direction. The second shielding plate 20 is installed from top to bottom on the second insulating plate 53. The locking portions 22 bent on its left and right sides are inserted and fixed in the locking holes 12 of the first shielding plate 10. The longitudinally long positioning holes 23 provided in the middle and extending in the left - right direction match the positioning ribs 532 provided on the second insulating block. In other embodiments, the second insulating plate 53 can be assembled on the second shielding plate 20 first, and then assembled integrally above the terminal. In this way, the first insulating plate 52 abuts against the inner surface of the first shielding plate 10, the other sides of the plurality of insulating blocks 51 abut against the second insulating plate 53, and the second insulating plate abuts against the inner surface of the second shielding plate.

[0029] Refer Figure 4-5 As shown, the arc - shaped portions 21 torn from the rear end of the second shielding plate 20 clamp the shielding portion of the cable. The arc - shaped portions 21 are offset from each other in the left - right direction. Among them, the arc - shaped portion 21 is a left - hand semi - arc, and the arc - shaped portion 11 is an upper - hand semi - arc.

[0030] Refer Figure 7 As shown, the insulating block 51 to which the signal terminal 30G is fixed is closer to the contact portion 31 than the insulating block to which the ground terminal is fixed.

[0031] Refer Figure 3 As shown, the second shielding plate 10 has a front end portion 14 with the same shape as the contact portion 31 near the contact portion. The contact portion 31 is J - shaped in the direction towards the second shielding plate.

[0032] In actual use, four of the cable connectors 100 form a matrix - shaped combination. One can refer to another patent application filed by the inventor, with the application number 202510096622.7. The cable connectors 100 of the present application can be respectively inserted and fixed in a metal frame to form an electrical connector. The cable connector can also abut against the board - end connector on the circuit board, which has terminals with flat - plate - shaped contact portions, and the cantilever - shaped contact portions abut against the flat - plate - shaped terminals. In other embodiments, a plastic frame can be sleeved or assembled outside multiple cable connectors to form a matrix combination.

[0033] In summary, the above are only the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the claims and the content of the specification of the present invention should still fall within the scope covered by the present invention patent.

Claims

1. A cable connector comprising a first shielding plate, a second shielding plate, a plurality of terminals, and a plurality of cables, wherein the plurality of terminals are arranged in a left-right direction and include a plurality of signal terminals and a plurality of grounding terminals alternately arranged; each cable has two exposed signal cores at its end and an insulating layer and a shielding layer covering the two signal cores; each terminal includes a contact portion, a tail portion, and a middle portion connecting the contact portion and the tail portion; each signal core of the cable is connected to the tail portion of the corresponding signal terminal; characterized in that: The cable is clamped between the first and second shielding plates. The first and second shielding plates have multiple arc-shaped portions, which clamp the corresponding shielding layers to fix the cable one by one. Each terminal has an independent insulating block fixed in its middle part, and the insulating block is fixed to the first shielding plate. In this way, a row of terminals is located between the first and second shielding plates.

2. The cable connector as described in claim 1, characterized in that: The tail of the grounding terminal is bent and abuts against the first shielding plate, and then welded and fixed.

3. The cable connector as described in claim 2, characterized in that: The first shielding plate extends to the contact portion.

4. The cable connector as described in claim 3, characterized in that: The second shielding plate has locking parts bent on both the left and right sides, and the locking parts are fixed in the locking holes opened in the first shielding plate.

5. The cable connector as described in claim 1, characterized in that: The cable connector includes a first insulating plate, and one side of a plurality of insulating blocks passes through an opening provided in the first insulating plate and is fixed to the first shielding plate.

6. The cable connector as described in claim 5, characterized in that: The first insulating plate abuts against the inner surface of the first shielding plate.

7. The cable connector as described in claim 6, characterized in that: The cable connector includes a second insulating plate, with the other side of a plurality of insulating blocks abutting against the second insulating plate, which in turn abuts against the inner surface of the second shielding plate.

8. The cable connector as described in claim 1, characterized in that: The insulating block that fixes the signal terminal is closer to the contact portion than the insulating block that fixes the grounding terminal.

9. The cable connector as described in claim 1, characterized in that: The second shielding plate has a front end portion with the same shape as the contact portion near the contact portion.

10. The cable connector as described in claim 9, characterized in that: The contact portion is J-shaped and faces the direction of the second shielding plate.

11. A method for assembling a cable connector, characterized in that the assembly method includes: Step 1: Provide a row of terminals, each terminal including a contact portion, a tail portion and a middle portion connecting the contact portion and the tail portion, the row of terminals including multiple signal terminals and multiple ground terminals arranged alternately, and each middle portion is fixed with an independent insulating block; Step 2: Provide a first shielding plate, and assemble the row of terminals onto the first shielding plate. The first shielding plate is provided with multiple arc-shaped portions. Step 3: Provide a row of cables, each cable having two exposed signal cores at its end and an insulating layer and a shielding layer covering the two signal cores. Assemble the row of cables to the first shielding plate. The signal cores of each cable are connected to the tail of the corresponding signal terminal. The arc-shaped portion is bent to hold the shielding layer of the cable. Step four, a second shielding plate is provided and assembled to the first shielding plate, so that the terminal and cable are disposed between the first shielding plate and the second shielding plate.

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