Bent outgoing line high-speed cable plug

Abstract

The cable plug comprises a transmission unit, the transmission unit is arranged in a right-angle mode, the two ends of the right angle are a head base and a differential line respectively and are electrically connected through a long contact pin and a short contact pin, and the differential line comprises a signal transmission line, a grounding line and a shielding layer wrapping the periphery. A metal shielding clamp is arranged outside the transmission unit, and an elastic arm is arranged on the outer side face of the metal shielding clamp. The head shell is integrally designed and sequentially comprises a butt joint area, a flange area and an installation area from the head end to the tail end, a supporting plane is arranged on the installation area at the tail end, and a plurality of isolation ribs extend from the position between the supporting plane and the flange area to the far end; the transmission unit is installed from the installation area, the head base and the supporting plane are flatly attached and pushed into the butt joint area, the multiple elastic arms on the metal shielding clamp are connected with the isolation ribs, the metal shielding clamp is connected with a grounding wire of a differential wire, then full-surrounding shielding is achieved, and a continuous grounding loop is provided for the transmission unit.

Description

Technical Field

[0001] The invention belongs to the technical field of cable plugs, and in particular relates to a high-speed cable plug with curved outlets. Background Art

[0002] With the continuous improvement of the performance of special equipment, the use environment is becoming more and more complex, the size is getting smaller and smaller, and the requirements for internal components are becoming higher and higher. Especially under the demand for higher and higher signal transmission rates, larger and larger information processing volumes, and smaller and smaller interference, the requirements for connector miniaturization, low crosstalk, impedance matching, high reliability and other indicators are constantly increasing.

[0003] In order to solve the problem of high-speed signal transmission between PCB boards, between modules, or between modules and PCB boards in a narrow space, the active end connector usually uses a curved outlet to meet the signal transmission in a limited space. However, the transmission performance of the curved outlet connector is usually not as easy to control as the straight connector. Therefore, it is necessary to optimize the performance of the curved connector, adjust the impedance, control the impedance consistency, and reduce the transmission loss. At the same time, in order to meet the low crosstalk index, a special shielding needs to be designed between the transmission signal pairs to reduce interference between each other. For this reason, a curved outlet high-speed cable plug is proposed. Summary of the invention

[0004] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] A high-speed cable plug with curved outlets, comprising a cable plug with a long rectangular structure, the cable plug comprising:

[0006] A transmission unit, wherein the transmission unit is arranged at a right angle, and the two ends of the right angle are a head base and a differential line respectively, and are electrically connected through a long pin and a short pin, and the differential line includes a signal transmission line, a ground line, and a shielding layer wrapped around the periphery, and a metal shielding clip is arranged on the outside of the transmission unit, and an elastic arm is arranged on the outer surface of the metal shielding clip;

[0007] The head shell is an integrated design and has a docking area, a flange area and a mounting area from the head end to the tail end. A support plane is provided on the tail end mounting area, and a plurality of isolation ribs extend toward the far end between the support plane and the flange area;

[0008] The transmission unit is installed in the installation area, the head base is pushed into the docking area flush with the supporting plane, the multiple elastic arms on the metal shielding clip are connected to the isolation ribs, and the metal shielding clip is connected to the ground wire of the differential line, thereby realizing full enclosure shielding and providing a continuous grounding loop for the transmission unit.

[0009] As a preferred embodiment of the above technical solution, the cable plug also includes a short tail cover. After the transmission unit is assembled into the head shell, the short tail cover is sleeved on the tail of the transmission unit and fixed to the head shell by small screws.

[0010] As a preferred embodiment of the above technical solution, two semicircular arc-shaped positioning bosses are symmetrically arranged on the outer edge of the docking area for preventing reverse insertion and skewed insertion during docking, and a plurality of rectangular cavities for assembling the transmission unit are arranged inside the docking area.

[0011] As a preferred embodiment of the above technical solution, circular cavities are provided at both ends of the flange area, anti-slip threads are processed inside the circular cavities, and screw accessories are installed on the internal threads of the anti-slip threads.

[0012] As a preferred embodiment of the above technical solution, an air cavity is naturally formed between the multiple isolation ribs, and a limiting boss for limiting the installation position of the transmission unit is arranged inside the air cavity.

[0013] As a preferred embodiment of the above technical solution, the tail end part of the short tail cover is provided with a potting area, and its exterior is a rectangular structure, a potting cavity is processed inside, and anti-slip grooves are provided on both side walls; an assembly area is provided at the front end of the short tail cover, and a top end surface matching the head shell is provided on the assembly area, and the shell side walls on both sides of the assembly area extend from the root to the distal end to the top end surface, and a step is formed on the other side to match the head shell to form a potting cavity.

[0014] As a preferred embodiment of the above technical solution, the transmission unit further includes a right base and a left base, and the right base and the left base are opposite to each other and are used to cover the long pin and the short pin.

[0015] The beneficial effects of the present invention are:

[0016] 1. The transmission unit of the curved outlet high-speed cable plug of the present invention is a right-angle structure, and the parallel differential cable connected to the tail end is 90° with the contact piece of its docking end, which can effectively shorten the height dimension of the entire product after docking; its overall design is a modular structure, and the cable plug can be docked with a straight, curved printed circuit board mounting socket or a panel mounting socket, and has the characteristics of miniaturization, compact structure, low cost, and high transmission rate, and is particularly suitable for high-speed signal transmission in a narrow space inside a chassis or module;

[0017] 2. The bent-outlet high-speed cable plug in the present invention has multiple transmission units installed in a modularly distributed rectangular cavity on the head shell, thereby achieving isolation between each other. At the same time, multiple elastic arms on the metal shielding clip are connected to the isolation ribs, and the metal shielding clip is connected to the ground wire of the differential line, thereby achieving full enclosure shielding, providing a continuous grounding loop for the transmission unit, and effectively reducing interference between signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows a three-dimensional structure diagram of a curved outlet high-speed cable plug in the embodiment in a spliced ​​state;

[0019] Figure 2 The figure shows a disassembled view of a cable plug in a curved outlet high-speed cable plug in an embodiment;

[0020] Figure 3 The figure shows a three-dimensional structure diagram of a middle head shell of a curved outlet high-speed cable plug in an embodiment;

[0021] Figure 4 What is shown is a schematic diagram of the three-dimensional structure of a transmission unit in a curved outlet high-speed cable plug in an embodiment;

[0022] Figure 5 The figure shows a three-dimensional structure diagram of a short tail cover in a curved outlet high-speed cable plug in an embodiment;

[0023] Figure 6 The figure shows a schematic diagram of installing a transmission unit in a curved outlet high-speed cable plug onto a head housing in an embodiment;

[0024] Figure 7 The figure shows a schematic diagram of a transmission unit in a curved outlet high-speed cable plug in an embodiment after being assembled with a head housing;

[0025] Figure 8 Shown is a schematic diagram of assembling a short tail cover in a curved outlet high-speed cable plug in an embodiment.

[0026] In the figure: 1, cable plug; 10, head shell; 11, transmission unit; 12, screw attachment; 13, short tail cover; 14, small screw; 15, epoxy glue; 100, docking area; 101, flange area; 102, installation area; 1000, rectangular cavity; 1010, circular cavity; 1011, anti-stripping thread; 1020, supporting plane; 1021, isolation rib; 1022, installation hole; 1023, limit boss; 102 4. Air cavity; 110. Head base; 111. Right base; 112. Left base; 113. Metal shielding clip; 114. Long pin; 115. Short pin; 116. Differential line; 1131. Elastic arm; 130. Potting area; 131. Assembly area; 1300. Potting cavity; 1301. Anti-slip groove; 1310. Top surface; 1311. Mounting threaded hole; 1312. Shell side wall; 1313. Step. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0028] Example

[0029] See also Figure 1 The cable plug 1 is a long rectangular structure, including a head shell 10, multiple transmission units 11, two sets of screw accessories 12, a short tail cover 13, two small screws 14 and some epoxy glue 15. The cable plug 1 in the figure is assembled with 12 transmission units 11 structures, and the number of transmission units 11 can be adjusted according to different needs to change the overall length of the cable plug 1. The cable plug 1 is equipped with a short tail cover, and a certain length of differential cable is thrown at the tail end. A long tail cover can be equipped as needed, and a wave-proof sleeve and a nylon silk sleeve are put on the outside of the cable.

[0030] See also Figure 2 The transmission unit 11 in the cable plug 1 is a right-angle structure, and the tail cable and the contact piece of the docking end are at 90 degrees, which can effectively shorten the height dimension of the entire product after docking; the transmission unit 11 is arranged in parallel as a whole, and assembled one by one into the corresponding cavity on the head shell 10, and then the short tail cover 13 is assembled, and the local structure is fixed by two small screws 14, and the differential line and the short tail cover 13 are positioned by tooling, and finally the epoxy glue 15 is poured to fill the inner cavity of the short tail cover 13. Two sets of screw accessories 12 are installed from the mounting holes at both ends of the shell 10 to complete the assembly of the curved outlet high-speed cable plug 1.

[0031] See also Figure 3 The metal head shell 10 is a rectangular structure formed by milling and is divided into three areas: a front end portion is used for a docking area 100 for docking, a middle portion is used for a flange area 101 for supporting, and a rear end portion is used for an installation area 102 for installing other parts.

[0032] Two semi-circular positioning bosses 1001 are designed on the outer edge of the front end docking area 100 of the head shell 10, which have the functions of anti-reverse insertion and anti-skew insertion and removal during docking. A row of rectangular cavities 1000 for assembling the transmission unit 11 are designed inside. They are arranged according to a certain pattern and isolated from each other by the shell, which effectively reduces the interference between each other; circular cavities 1010 are designed at both ends of the flange area 101 in the middle part of the head shell 10, and anti-slip threads 1011 are processed inside, which function to assemble the screw attachment 1 2, while preventing the screw attachment 12 from being dragged backward; a supporting plane 1020 for supporting the installation of the short tail cover 13 is designed in the installation area 102 of the tail end portion of the head shell 10, on which two installation holes 1022 for installation are designed, and a plurality of isolation ribs 1021 extend toward the far end between the supporting plane 1020 and the flange area 101, which are separated from each other, and an air cavity 1024 is naturally formed therebetween, inside which a limiting step 1023 is designed for limiting the installation position of the transmission unit 11.

[0033] The head shell 10 has good mechanical strength, and provides reliable support for the entire curved outlet high-speed cable plug 1, while providing protection for other parts.

[0034] See also Figure 4 The transmission unit 11 includes a head base 110, a right base 111, a left base 112, a metal shielding clip 113, a long pin 114, a short pin 115 and a section of parallel differential line 116 with a very thin diameter. The right base 111 and the left base 112 are oppositely enclosed to cover the long pin 114 and the short pin 115. The pin head is assembled in the head base 110, and the pin tail is connected to the differential line 116. All parts are fixed as a whole by a metal shielding clip 113 to form a cable transmission unit 11 for high-speed differential signal transmission.

[0035] A plurality of identical differential units 11 are arranged and combined horizontally or vertically and are appropriately fixed by structural members to form various transmission bridges, which can be used for reliable transmission of multi-channel high-speed signals.

[0036] See also Figure 5 The short tail cover 13 is a rectangular metal shell structure formed by milling, and is divided into two parts. The tail end is divided into a potting area 130 for potting and fixing the signal unit 11, and the front end is an assembly area 131 for mounting with the head shell 10.

[0037] The potting area 130 of the tail end of the short tail cover 13 is a rectangular structure on the outside, and a large rectangular cavity 1300 is processed inside. Anti-skid grooves 1301 are designed on both side walls for potting and anti-slip functions of potting glue. The front end assembly area 131 of the short tail cover 13 is designed with a top end surface 1310 for positioning that cooperates with the metal head shell 10, and two mounting threaded holes 1311 for locking with small screws 14 are distributed on it. The side walls 1312 of the shell on both sides extend from the root to the distal end to the support plane 1310. On the other side of the assembly area 131, a step 1313 is formed to cooperate with the head shell 10 to form a potting cavity.

[0038] See also Figure 6The transmission unit 11 is installed from the mounting area 102 on the head shell 10, and the head base 110 enters the docking area 100 of the head shell 10 along the air cavity 1024 and flush with the support plane 1020, and is fixed in the rectangular cavity 1000. The base boss 1101 on the head base 110 is flush with the limiting boss 1023 on the head shell 10, which plays an axial limiting role; after the transmission unit 11 is axially pushed to the head shell 10, the multiple small elastic arms 1131 on its metal shielding clip 113 are connected to the isolation rib 1021 on the head shell 10, and the metal shielding clip 113 is connected to the parallel differential line 116) and the grounding line of the parallel differential line, thereby realizing full enclosure shielding, providing a continuous grounding loop for the transmission unit 11, which can be used for high-speed signal transmission.

[0039] See also Figure 7 After the transmission unit 11 is assembled in place, it is located in a plurality of rectangular cavities 1000 on the head shell 10 and arranged in a row. Through the joint action of the head shell 10 and the metal shielding clip 113, a stable shielding with an approximately circular distribution is formed between the signal transmission pairs, which can effectively reduce the transmission interference between the signal pairs.

[0040] See also Figure 8 The top surface 1310 on the short tail cover 13 is fitted with the supporting plane 1020 on the head shell 10, and two small screws 14 are passed through the mounting holes 1022 on the head shell 10 and then locked with the mounting threaded holes 1311 on the short tail cover 13 to fix the head shell 10 and the short tail cover 13 to each other, and then the differential line 116 on the transmission unit 11 in the short tail cover 13 is positioned by a fixing tool, and then a certain amount of epoxy glue 15 is evenly injected into the potting cavity 1300 on the short tail cover 13 and cured at high temperature, which can ensure that each differential line 116 on the transmission unit 11 is evenly wrapped by the epoxy glue 15 and evenly output.

[0041] Finally, the screw attachment 12 is rotated and passed through the anti-slip thread 1011 on the middle flange area 101 of the head shell 10 to complete the overall assembly of the bent outlet high-speed cable plug 1.

[0042] The short tail cover 13 and the head shell 10 have good mechanical strength, which provides reliable support for the entire curved outlet high-speed cable plug 1 and provides protection for other parts.

[0043] The invention relates to a curved outlet high-speed cable plug, which fixes multiple transmission units therein through locking and potting of a metal head shell and a short tail cover structure, and each transmission unit fixes the base and the contact into a complete body through a metal shielding clip structure for differential signal transmission. The cable plug is designed as a modular structure, and the metal shielding clip and the head shell cooperate to form a full shielding distribution around the differential contact pair. The cable plug can be docked with straight, curved, and panel-mounted sockets, and has the characteristics of miniaturization, compact structure, low cost, and high transmission rate. It is particularly suitable for high-speed signal transmission in a narrow space inside a chassis or module.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A high-speed cable plug with curved outlet, comprising a cable plug (1) with a long rectangular structure, characterized in that: The cable plug (1) comprises: A transmission unit (11), the transmission unit (11) being arranged at a right angle, the two ends of the right angle being a head base (110) and a differential line (116) respectively, and being electrically connected via a long plug pin (114) and a short plug pin (115), the differential line (116) comprising a signal transmission line, a ground line, and a shielding layer covering the periphery, the transmission unit (11) being arranged with a metal shielding clip (113) on the outside, and an elastic arm (1131) being arranged on the outer side surface of the metal shielding clip (113); A head shell (10), the head shell (10) being of an integrated design and comprising a docking area (100), a flange area (101) and a mounting area (102) from the head end to the tail end, a support plane (1020) being provided on the tail end mounting area (102), and a plurality of isolation ribs (1021) extending toward the distal end between the support plane (1020) and the flange area (101); The transmission unit (11) is installed from the installation area (102), the head base (110) is pushed into the docking area (100) in a flush manner with the support plane (1020), a plurality of elastic arms (1131) on the metal shielding clip (113) are connected to the isolation rib (1021), and the metal shielding clip (113) is connected to the grounding wire of the differential line (116), thereby achieving full enclosure shielding and providing a continuous grounding loop for the transmission unit (11).

2. The high-speed cable plug with curved outlet according to claim 1, characterized in that: The cable plug (1) further comprises a short tail cover (13); after the transmission unit (11) is assembled into the head shell (10), the short tail cover (13) is sleeved on the tail of the transmission unit (11) and fixed to the head shell (10) via small screws (14).

3. The high-speed cable plug with curved outlet according to claim 1, characterized in that: Two semicircular arc-shaped positioning bosses (1001) are symmetrically arranged on the outer edge of the docking area (100) for preventing reverse insertion and skewed insertion during docking, and a plurality of rectangular cavities (1000) for assembling the transmission unit (11) are arranged inside the docking area (100).

4. The high-speed cable plug with curved outlet according to claim 1, characterized in that: Circular cavities (1010) are arranged at both ends of the flange area (101), anti-slipping threads (1011) are processed inside the circular cavity (1010), and screw accessories (12) are installed inside the anti-slipping threads (1011).

5. The high-speed cable plug with curved outlet according to claim 1, characterized in that: An air cavity (1024) is naturally formed between the plurality of isolation ribs (1021), and a limiting boss (1023) for limiting the installation position of the transmission unit (11) is provided inside the air cavity (1024).

6. The high-speed cable plug with curved outlet according to claim 2, characterized in that: The tail end of the short tail cover (13) is provided with a potting area (130), and its exterior is a rectangular structure, a potting cavity (1300) is processed inside, and anti-skid grooves (1301) are provided on both side walls; the front end of the short tail cover (13) is provided with an assembly area (131), and the assembly area (131) is provided with a top end surface (1310) that matches the head shell (10), and the shell side walls (1312) on both sides of the assembly area (131) extend from the root to the distal end to the top end surface (1310), and the other side forms a step (1313) that matches the head shell (10) to form a potting cavity.

7. The high-speed cable plug with curved outlet according to claim 1, characterized in that: The transmission unit (11) further comprises a right base (111) and a left base (112), wherein the right base (111) and the left base (112) are arranged opposite to each other to enclose the long plug pin (114) and the short plug pin (115).

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