A high speed connector and cable assembly therefor

Abstract

The application provides a high-speed connector and a cable assembly thereof, comprising a socket and a plug, the socket and the plug are locked by a seat butt joint locking accessory and a head butt joint locking accessory arranged at the bottom, respectively, the socket comprises a seat shell, a seat base, seat signal pins, seat shielding pins, a seat butt joint locking accessory and a mounting locking accessory, the seat butt joint locking accessory comprises a first nut and a second nut, the first nut and the second nut are fixed at the top of the seat shell through threads and a turning lug, the socket is a fixed end, the connection with a PCB is realized in a crimping mode, the mounting locking accessory is used for locking and fixing with a part below the PCB, the plug is a free end, the connection with a flat wire is realized in a welding mode, the socket and the plug are completely locked by the seat butt joint locking accessory and the head butt joint locking accessory, respectively, the stability is good, the socket and the plug are not easy to fall off, and the stable transmission of signals is effectively ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a high-speed connector and a cable assembly thereof. Background Art

[0002] In the fields of large-capacity storage and big data processing, signal interconnection between different PCB boards and different modules within the equipment is often achieved through connectors and their cable assemblies. With the rapid development of current information technology and the widespread application of high-performance chips, the requirements for data transmission rate and transmission quality in the system are becoming increasingly higher. As an important link in the signal transmission path, the performance of connectors and their cable assemblies has become one of the important factors restricting the overall performance of the system. The existing connectors have poor stability after connection. When the external cable is pulled, the plug end of the connector is easily detached from the top of the fixed end, thereby affecting the normal transmission of the signal.

[0003] The present invention provides a high-speed connector and a cable assembly thereof to solve the problems raised in the background technology. Summary of the Invention

[0004] In response to the deficiencies of the prior art, the present invention provides a high-speed connector and its cable assembly, with a reinforced metal shell to improve the connector's ability to resist vibration and impact, a spring-type contact and impedance consistency setting to achieve high-speed transmission, a shielding sheet to reduce crosstalk between differential pairs, and thereby solve the problems raised in the background technology.

[0005] The present invention solves the above-mentioned technical problems through the following technical means: a high-speed connector, including a socket and a plug, wherein the socket is a fixed end, which is locked and fixed with the PCB by the installation locking accessories at the bottom of the socket, and the plug is a free end, and the socket and the plug are respectively locked by the seat docking locking accessories and the head docking locking accessories arranged at the bottom.

[0006] Preferably, the socket includes a socket shell, a socket base, a socket signal pin, a socket shielding pin, a socket docking locking accessory, and an installation locking accessory. The socket docking locking accessory includes a first nut and a second nut, and the first nut and the second nut are fixed to the top of the socket shell by threads and mortises.

[0007] Preferably, the mounting and locking accessories include a rivet rod and a first screw. The rivet rod is fixed to the seat shell through a mortise and tenon. The first screw can slide on the top of the rivet rod through a thread. The seat signal pin and the seat shielding pin are press-fitted into the seat base through barbs.

[0008] Preferably, four mounting holes are provided at the top of the four corners of the seat shell, wherein the two first docking locking holes at the diagonal positions of the seat shell are used to fix the seat docking locking accessories, and the other two mounting locking holes of the seat shell are used to fix the mounting locking accessories.

[0009] Preferably, the asymmetric concave rib is arranged on the top of the docking interface of the socket housing.

[0010] Preferably, the socket signal pin and the socket shielding pin are respectively arranged in the first mounting hole and the second mounting hole of the socket base, and the top of the socket signal pin and the socket shielding pin is provided with the first barb and the second barb in interference fit with the socket base.

[0011] Preferably, one end of the socket signal pin and the socket shielding pin is respectively the first elastic sheet and the second elastic sheet, and the interference position is fixed after being arranged in the socket base.

[0012] Preferably, the plug comprises a head housing, a head base, a joint unit and a head docking locking accessory, wherein the head docking locking accessory comprises a second screw and a rivet pipe, the second screw and the rivet pipe are fixed on the top of the head housing through a riveting process, the docking interface of the head housing is provided with a convex rib, and the convex rib is matched with the concave rib in the socket housing.

[0013] Preferably, the joint unit comprises a card seat, a head shielding pin, a head signal pin joint and a shielding sheet, the top of the head signal pin joint is provided with a first card nail and a second card nail, and the first card nail and the second card nail are arranged in the fourth card slot and the fifth card slot of the head shielding pin and the second card slot and the third card slot of the card seat.

[0014] The application also provides a cable assembly of a high-speed connector, comprising a flat wire, the flat wire is welded with one end of the joint unit, the joint unit with the welded flat wire is inserted into the head base, and is assembled into the head housing, and glue is poured in the head housing and solidified.

[0015] The application has the following beneficial effects:

[0016] 1. The socket is a fixed end, the connection with the PCB is realized through crimping, the socket is fixed and locked with the part below the PCB through the self-provided mounting locking accessory, the plug is a free end, the connection with the flat wire is realized through welding, the socket and the plug are completely locked through the socket docking locking accessory and the head docking locking accessory, the stability is good, the socket and the plug are not easy to fall off, and the stable transmission of signals is effectively ensured.

[0017] 2. The contact part of the connector is an elastic sheet type contact part, two signal pins and one shielding pin form a differential signal transmission channel, the two signal pins form a differential pair for differential signal transmission, the shielding pin provides a ground loop around the signal pin, and effectively reduces the signal crosstalk between the differential pair, in addition, the interference of the differential signal part is further reduced through the staggered arrangement of the differential signal transmission channel, and the expansion of different specifications of high-speed connectors can be realized through the combination of multiple signal transmission channels.

[0018] 3、The mounting locking accessory of the application comprises a rivet rod and a first screw, the rivet rod is fixed with the seat shell through a turn-over rivet, the first screw is slidable on the top of the rivet rod through a thread and does not fall off, the seat signal pin and the seat shielding pin are press-fitted into the seat base through a barb interference, the seat base assembled with the contact is ensured to be interference-fitted into the seat shell through the size control of the round corners on the four sides, and the stability is good.

[0019] 4、Four mounting holes are arranged at the top of the four corners of the seat shell, two first butt joint locking holes at the opposite positions are used for fixing the seat butt joint locking accessory, and the other two mounting locking holes are used for fixing the mounting locking accessory, an asymmetric recessed rib is arranged at the top of the butt joint interface, which is used for preventing reverse insertion during butt joint, an asymmetric positioning column is arranged at the top of the PCB mounting surface, which is used for preventing reverse assembly during installation, and the use is facilitated.

[0020] 5、One end of the seat signal pin and the seat shielding pin is respectively a first elastic sheet and a second elastic sheet, which are fixed at the interference position after being assembled into the seat base, a fourth limiting step is arranged at the top of the seat shielding pin, the first elastic sheet and the second elastic sheet are cantilever beam models, and elastic deformation is ensured after insertion, so that a certain normal pressure exists between the first elastic sheet and the second elastic sheet and the butt joint contact, the contact is reliable, a through slot is arranged at the top of the first elastic sheet of the seat signal pin, so that the contact points are increased from two to four, and the reliability of the contact is improved.

[0021] 6、The plug of the application comprises a head shell, a head base, a joint unit, a flat wire and a head butt joint locking accessory, wherein the head butt joint locking accessory comprises a second screw and a rivet pipe, both of which are fixed at the top of the head shell through a turn-over rivet process, the flat wire is welded with one end of the joint unit, the joint unit with the welded flat wire is inserted into the head base, and then the whole is assembled into the head shell, finally, internal overall fixation is realized by pouring glue into the head shell and solidifying.

[0022] 7、The top of the head base is provided with a plurality of first clamping grooves corresponding to a plurality of joint units, and the positioning of the two directions of the top of the joint unit is ensured by staggering, and the positioning is realized by the fifth limiting step at the top of the third direction, and each first square hole at the top of the head base corresponds to a differential signal channel, which accurately limits the contact of the plug and ensures the butt joint reliability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the overall schematic view of the socket and the plug of the application.

[0024] Figure 2 It is the schematic view of the socket of the application.

[0025] Figure 3 It is the schematic view of the seat shell of the application.

[0026] Figure 4 It is the schematic view of the seat base of the application.

[0027] Figure 5 The schematic diagram of the socket signal pin and the socket shielding pin.

[0028] Figure 6 The schematic diagram of the plug.

[0029] Figure 7 The schematic diagram of the head shell.

[0030] Figure 8 The schematic diagram of the head base.

[0031] Figure 9 The schematic diagram of the unit of the assembly.

[0032] Figure 10 The schematic diagram of the card seat.

[0033] Figure 11 The schematic diagram of the head shielding pin and the head signal pin assembly.

[0034] Figure 12 The schematic diagram of the shielding sheet.

[0035] In the figure: 1, the socket; 11, the socket shell; 111, the first butt joint locking hole; 112, the installation locking hole; 113, the concave rib; 114, the positioning column; 12, the socket base; 121, the first installation hole; 122, the second installation hole; 123, the first limiting step; 124, the second limiting step; 13, the socket signal pin; 131, the first fish eye; 132, the third limiting step; 133, the first barb; 134, the first elastic sheet; 135, the through slot; 14, the socket shielding pin; 141, the second fish eye; 142, the second barb; 143, the fourth limiting step; 144, the second elastic sheet; 15, the socket butt joint locking accessory; 151, the first nut; 152, the second nut; 16, the installation locking accessory; 161, the rivet rod; 162, the first screw; 2, the plug; 21, the head shell; 211, the second butt joint locking hole; 212, the convex rib; 22, the head base; 221, the first card slot; 222, the fifth limiting step; 223, the first square hole; 23, the unit of the assembly; 231, the card seat; 2311, the second card slot; 2312, the third card slot; 2313, the convex nail; 232, the head shielding pin; 2321, the fixed card ring; 2322, the fourth card slot; 2323, the fifth card slot; 2324, the buckle; 2325, the first contact area; 233, the head signal pin assembly; 2331, the welding area; 2332, the first card nail; 2333, the second card nail; 2334, the second contact area; 234, the shielding sheet; 2341, the fixed hole; 2342, the second square hole; 24, the flat wire; 25, the head butt joint locking accessory; 251, the second screw; 252, the rivet pipe. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0037] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on top of the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present.

[0038] Embodiment 1

[0039] Please refer to the drawings attached in the specification Figure 1 The high-speed connector described in the embodiment includes a socket 1 and a plug 2, wherein the socket 1 is a fixed end, and is connected to a PCB by crimping, and is fixed and locked to a part below the PCB by a self-provided mounting and locking accessory 16; the plug 2 is a free end, and is connected to a flat wire 24 by welding; the socket 1 and the plug 2 are completely locked by a seat butt joint locking accessory 15 and a head butt joint locking accessory 25 respectively, and have the characteristic of reliable contact.

[0040] The contact element of the connector in the embodiment is a spring piece type contact element, two signal pins and a shielding pin form a differential signal transmission channel, the two signal pins form a differential pair for differential signal transmission, the shielding pin provides a "ground" loop around the signal pins, and effectively reduces the signal crosstalk between the differential pairs, in addition, the staggered arrangement of the differential signal transmission channels further reduces the interference of the differential signal elements, and the expansion of different specifications of high-speed connectors can be realized by the combination of multiple signal transmission channels.

[0041] Embodiment 2

[0042] Please refer to the drawings attached in the specification Figure 2 The socket 1 in the embodiment includes a seat shell 11, a seat base 12, seat signal pins 13, seat shielding pins 14, a seat butt joint locking accessory 15, and a mounting and locking accessory 16.

[0043] The seat butt joint locking accessory 15 includes a first nut 151 and a second nut 152, which are fixed on top of the seat shell 11 by threads and a turned lug.

[0044] The mounting locking accessory 16 includes a rivet rod 161 fixed to the seat shell 11 by a turn rivet, and a first screw 162 threadedly slidable on the top of the rivet rod 161 and not falling off. The seat signal pin 13 and the seat shielding pin 14 are press-fitted into the seat base 12 by the barb interference. The seat base 12 assembled with the contact is ensured to be interference-fitted into the seat shell 11 by the size control of the round corners.

[0045] Embodiment 3

[0046] Please refer to the schematic diagram of the seat shell 11 of the socket 1 of the embodiment in the accompanying drawings of the specification. Figure 3 The four corners of the top of the seat shell 11 are provided with four mounting holes, among which two first butt locking holes 111 at opposite positions are used for fixing the seat butt locking accessory 15, and the other two mounting locking holes 112 are used for fixing the mounting locking accessory 16. An asymmetric recessed rib 113 is arranged at the top of the butt interface, which is used for preventing reverse insertion during butt joint. An asymmetric positioning column 114 is arranged at the top of the PCB mounting surface, which is used for preventing reverse assembly during assembly.

[0047] Please refer to the schematic diagram of the seat base 12, the seat signal pin 13 and the seat shielding pin 14 of the socket 1 of the embodiment in the accompanying drawings of the specification. Figure 4 and Figure 5 The seat signal pin 13 and the seat shielding pin 14 are assembled in the first mounting hole 121 and the second mounting hole 122 of the seat base 12, respectively. The top of the seat signal pin 13 and the seat shielding pin 14 is provided with a first barb 133 and a second barb 142, which are interference-fitted with the seat base 12, so as to ensure that they will not fall off from the seat base 12. One end of the seat signal pin 13 and the seat shielding pin 14 is a first fish eye 131 and a second fish eye 141, which are interference-press-fitted with the PCB. The seat signal pin 13 and the seat shielding pin 14 are matched with the first limiting step 123 and the second limiting step 124 of the seat base 12 through a third limiting step 132, so as to avoid the retreat of the seat signal pin 13 and the seat shielding pin 14, and ensure that the first fish eye 131 and the second fish eye 141 are press-fitted into the hole of the PCB.

[0048] One end of the seat signal pin 13 and the seat shielding pin 14 is a first elastic sheet 134 and a second elastic sheet 144, which are fixed at the interference position after being assembled into the seat base 12. The top of the seat shielding pin 14 is provided with a fourth limiting step 143. The first elastic sheet 134 and the second elastic sheet 144 are cantilever beam models, which are elastically deformed after being inserted, so as to ensure that the first elastic sheet 134 and the second elastic sheet 144 have a certain normal pressure with the butt contact, and the contact is reliable. The top of the first elastic sheet 134 of the seat signal pin 13 is provided with a through slot 135, so that the contact points are increased from two to four, and the reliability of the contact is improved.

[0049] Embodiment 4

[0050] Please refer to the schematic diagram of the seat shell 11 of the socket 1 of the embodiment in the accompanying drawings of the specification. Figure 6The plug 2 of the embodiment comprises a head shell 21, a head base 22, a joint unit 23, a flat wire 24 and a head docking locking accessory 25, wherein the head docking locking accessory 25 comprises a second screw 251 and a rivet pipe 252, which are fixed on the top of the head shell 21 through a turning process, the flat wire 24 is welded with one end of the joint unit 23, the joint unit 23 with the welded flat wire 24 is inserted into the head base 22, and then the whole is assembled into the head shell 21, and finally the inside is filled with glue and solidified to realize the overall fixation inside;

[0051] Please refer to the attached drawings of the specification Figure 7 The head shell 21 of the plug 2 of the embodiment is shown in the schematic diagram, the second docking locking hole 211 is arranged at the flange diagonal position of the head shell 21, which is used for fixing the head docking locking accessory 25, and the convex rib 212 is arranged at the top of the docking interface, which cooperates with the concave rib 113 in the seat shell 11 to realize the anti-reverse insertion.

[0052] Please refer to the attached drawings of the specification Figure 8 The head base 22 of the plug 2 of the embodiment is shown in the schematic diagram, the head base 22 is provided with a plurality of first clamping grooves 221 at the top, which correspond to a plurality of joint units 23, and the staggered arrangement can ensure the positioning of the two direction tops of the joint units 23, and the fifth limiting step 222 is arranged at the top of the third direction to realize the positioning, and each first square hole 223 at the top of the head base 22 corresponds to a differential signal channel, which can accurately limit the contact element of the plug 2 to ensure the docking reliability.

[0053] Please refer to the attached drawings of the specification Figure 9 The joint unit 23 of the plug 2 of the embodiment is shown in the schematic diagram, the joint unit 23 comprises a clamping seat 231, a head shielding needle 232, a head signal needle joint 233 and a shielding sheet 234, the head signal needle joint 233 is injected into the head base 22 to form a joint, the top of the head signal needle joint 233 is provided with a first clamping nail 2332 and a second clamping nail 2333, which are placed in the fourth clamping groove 2322 and the fifth clamping groove 2323 of the head shielding needle 232 and the second clamping groove 2311 and the third clamping groove 2312 of the clamping seat 231 during assembly, so as to realize the positioning of the two direction tops of the clamping seat 231, the head shielding needle 232 and the head signal needle joint 233;

[0054] The buckle 2324 provided on the top of the head shielding needle 232 is triangular, corresponding to the second square hole 2342 on the top of the shielding sheet 234, and can ensure the fixation of the shielding sheet 234 and the head shielding needle 232 after assembly. The lug 2313 provided on the top of the holder 231 corresponds to the fixing hole 2341 on the top of the shielding sheet 234, and after assembly, the lug 2313 will be higher than the surface of the shielding sheet 234. Then, the hot riveting process is used to press the protruding part of the lug 2313 flat. The diameter of the protruding part becomes larger under the condition that the volume remains unchanged and the height becomes smaller. After the diameter is larger than the diameter of the fixing hole 2341, the fixation of the shielding sheet 234 and the holder 231 is completed, and finally the fixation of the unit 23 is realized.

[0055] Embodiment 5

[0056] Please refer to the attached drawings of the specification Figure 11 and Figure 12 The schematic diagram of the head signal needle unit 233 and the head shielding needle 232 of the plug 2 in the embodiment is shown in FIG. 4. After assembly, it is the fixed part of the contact piece, one end of which is the first contact area 2325 and the second contact area 2334, which elastically contacts the first elastic sheet 134 and the second elastic sheet 144 of the contact piece of the mating end. The other end of the head signal needle unit 233 is the welding area 2331, which is welded with the core wire of the flat wire 24. The other end of the head shielding needle 232 is the fixed collar 2321, which is welded with the shielding layer of the flat wire 24 after the flat wire 24 is preliminarily fixed.

[0057] It should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0058] The top embodiment is only used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents. Such modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-speed connector, comprising a socket (1) and a plug (2), characterized in that: The socket (1) is a fixed end, which is locked and fixed to the PCB by a mounting locking accessory (16) at the bottom of the socket (1); the plug (2) is a free end, and the socket (1) and the plug (2) are locked by a seat docking locking accessory (15) and a head docking locking accessory (25) respectively arranged at the bottom; The socket (1) comprises a socket shell (11), a socket base (12), a socket signal pin (13), a socket shielding pin (14), a socket docking locking accessory (15), and an installation locking accessory (16); the socket docking locking accessory (15) comprises a first nut (151) and a second nut (152); the first nut (151) and the second nut (152) are fixed to the top of the socket shell (11) by means of a threaded joint and a mortise and tenon joint; The mounting locking accessory (16) includes a rivet rod (161) and a first screw (162), the rivet rod (161) is fixed to the seat housing (11) through a mortise, the first screw (162) can slide on the top of the rivet rod (161) through a thread, and the seat signal pin (13) and the seat shielding pin (14) are press-fitted into the seat base (12) through a barb interference fit; The seat signal pin (13) and the seat shielding pin (14) are respectively assembled in the first mounting hole (121) and the second mounting hole (122) of the seat base (12); the tops of the seat signal pin (13) and the seat shielding pin (14) are provided with a first barb (133) and a second barb (142) which are interference fit with the seat base (12); One end of the seat signal pin (13) and the seat shielding pin (14) are respectively a first spring piece (134) and a second spring piece (144), which are fixed in interference fit position after being installed into the seat base (12); The plug (2) comprises a head shell (21), a head base (22), a component unit (23), and a head docking locking accessory (25), wherein the head docking locking accessory (25) comprises a second screw (251) and a rivet tube (252), the second screw (251) and the rivet tube (252) being fixed to the top of the head shell (21) by a mortise and tenon process, and a convex rib (212) is provided at the top of the docking interface of the head shell (21), and the convex rib (212) cooperates with a concave rib (113) in the seat shell (11); The assembly unit (23) includes a base (231), a head shielding needle (232), a head signal needle assembly (233) and a shielding sheet (234); a first clamp (2332) and a second clamp (2333) are provided on the top of the head signal needle assembly (233); and the first clamp (2332) and the second clamp (2333) are placed in the fourth clamping slot (2322) and the fifth clamping slot (2323) of the head shielding needle (232) and the second clamping slot (2311) and the third clamping slot (2312) of the base (231); A protruding nail (2313) is provided on the top of the card seat (231), corresponding to the fixing hole (2341) on the top of the shielding plate (234).

2. A high-speed connector according to claim 1, characterized in that: Four mounting holes are provided at the top of the four corners of the seat shell (11), wherein the two first docking locking holes (111) at the diagonal positions of the seat shell (11) are used to fix the seat docking locking accessories (15), and the other two mounting locking holes (112) of the seat shell (11) are used to fix the mounting locking accessories (16).

3. A high-speed connector according to claim 2, characterized in that: An asymmetric concave rib (113) is provided at the top of the docking interface of the seat shell (11).

4. A cable assembly for a high-speed connector according to any one of claims 1 to 3, characterized in that: The flat wire (24) is welded to one end of the assembly unit (23), and the assembly units (23) welded with the flat wire (24) are inserted into the head base (22) piece by piece, assembled into the head shell (21), and glue is poured and solidified inside the head shell (21).

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