Cable connector

Abstract

The utility model relates to the technical field of connectors, in particular to a cable connector. The cable connector comprises an outer shell, a middle shell and differential assemblies are installed in an inner cavity of the outer shell, the middle shell is provided with middle shell installation holes for corresponding installation of the differential assemblies, each differential assembly comprises a differential pair and a shielding structure arranged on the periphery of the differential pair, and an insulation fixing body is fixed to the portion, used for being fixed to a cable, of the shielding structure. The insulation fixing body is located in the middle shell installation hole, one of the insulation fixing body and the inner wall of the middle shell installation hole is provided with a clamping protrusion, the other one of the insulation fixing body and the inner wall of the middle shell installation hole is provided with a clamping groove for the clamping protrusion to be clamped in, and the clamping protrusion is matched with the clamping groove in a clamping mode so that the insulation fixing body can be installed in the middle shell installation hole in a limited mode in the extending direction of the middle shell installation hole. And the differential assembly is arranged in the middle shell mounting hole, so that the differential assembly is limited and fixed, and the mounting operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field, concretely relates to a cable connector. BACKGROUND

[0002] High -speed cable connector is large -scale communication equipment, super -high performance server, giant computer, industrial computer, high -end storage device commonly used a kind of connector, for realizing high -speed cable and corresponding equipment connection.

[0003] The structure of the existing cable connector can be seen from the Chinese invention patent application disclosed in CN116505314A, a high-speed cable assembly, the high-speed cable assembly includes differential assembly, middle shell and outer shell, differential assembly includes cable, grounding clamp, contact piece, insulating sleeve, shielding shell and shielding cover, the grounding clamp tightly holds the shielding layer and insulating layer of the cable, the shielding cover and the shielding shell are both provided with a jaw that tightly holds the grounding clamp at one end facing the grounding clamp, so that the shielding cover and the shielding shell are both electrically connected with the grounding clamp, the shielding shell, the shielding cover and the grounding clamp constitute the shielding structure of the differential assembly and are in conduction with the shielding layer of the cable, the jaw and the grounding clamp constitute the fixing part of the shielding structure that crimps the cable. The cable is injection molded with a filler, the filler wraps the part where the shielding structure is fixed with the cable, and the filler constitutes an insulating fixed body. The middle shell is provided with a jack hole corresponding to the differential assembly, the differential assembly is inserted into the jack hole from the pull-out surface of the middle shell and the shielding shell is pulled out from the insertion surface of the middle shell, after the differential assembly is inserted into position, the filler is located in the jack hole, which can fix the cable. The insertion surface of the middle shell is provided with a lock catch at the corresponding position of each layer of jack hole, the lock catch cooperates with the differential assembly to serve as an extension structure of the differential assembly, which can be limited by the cooperation of the middle shell and the outer shell to prevent the differential assembly from being separated from the middle shell. The outer shell is provided with a mounting cavity, the middle part of the mounting cavity is provided with a retaining wall, the sidewall of the outer shell is provided with a clamping hole, the sidewall of the middle shell is provided with a cooperation strip, the cooperation strip is provided with a clamping point matched with the clamping hole, after the middle shell is inserted into the mounting cavity of the outer shell, the clamping point is clamped into the corresponding clamping hole, so that the middle shell and the outer shell are connected. The lock catch is clamped and locked by the retaining wall and the middle shell, and at the same time, each differential assembly is also locked.

[0004] Among them, the space on both sides of the retaining wall in the inner cavity of the outer shell forms a head cavity and a tail cavity, the middle shell is installed in the tail cavity, the jack hole of the middle shell constitutes a middle shell mounting hole for the differential assembly to pass through, the retaining wall is provided with an outer shell mounting hole for the differential assembly to pass through and extend to the head cavity, and the insertion end of the differential assembly is located in the head cavity to allow the adapter connector to be inserted into the head cavity of the outer shell and be inserted into the differential assembly.

[0005] The cable connector is assembled by installing a row of differential assemblies first, and then inserting the lock catch into the lock slot of each differential assembly in the same row, and the differential assemblies are fixed and installed by the lock catch cooperating with the insulating fixed body of the cable fixed position, each row of differential assemblies is provided with a lock catch, the lock catch is inserted after the installation of a row of differential assemblies, and the next row of differential assemblies is installed, and the installation operation of the lock catch is required for each row of differential assemblies, the operation is relatively inconvenient, and a large number of lock catches need to be separately configured, which is not conducive to cost saving. Utility model content

[0006] The utility model discloses a kind of cable connectors, to solve the problem that the structure assembly operation of current cable connector is inconvenient by lock catch to differential assembly is positioned and installed.

[0007] The technical scheme of the cable connector of the utility model is as follows:

[0008] A kind of cable connector, including outer shell, differential assembly and each differential assembly are installed in the inner cavity of outer shell, middle shell is provided with the middle shell installation hole for differential assembly corresponding installation, differential assembly includes differential pair and the shielding structure of being set at the periphery of differential pair, the part for being fixed with cable of shielding structure is fixed with insulating fixed body, insulating fixed body is located in middle shell installation hole, one of insulating fixed body and the inner wall of middle shell installation hole is provided with clamping protrusion, and the other is provided with the clamping groove for clamping protrusion, and clamping protrusion and clamping groove are clamped to make insulating fixed body limit installation in middle shell installation hole along the direction of extension of middle shell installation hole.

[0009] Beneficial effects: the utility model is improved on the basis of cable connector in the prior art, and the insulating fixed body fixed at the fixed connection of the shielding structure of differential assembly and cable cooperates with middle shell installation hole, realizes the limiting of differential assembly in middle shell body, clamping protrusion and clamping groove are respectively arranged on the inner wall of insulating fixed body and middle shell installation hole, after differential assembly is installed into the middle shell installation hole of middle shell body, insulating fixed body is fixed in middle shell installation hole by the clamping cooperation of clamping protrusion and clamping groove, and insulating fixed body is fixed with shielding structure, so that differential assembly is limit installation in middle shell installation hole along the direction of extension of middle shell installation hole, differential assembly is installed into middle shell installation hole, and the limiting of differential assembly is realized, and installation operation is convenient.

[0010] Further, the insulating fixed body is further provided with a portion in interference fit with the middle shell installation hole.

[0011] Further, the insulating fixed body is provided with an interference protrusion, the interference protrusion is arranged at intervals with the clamping protrusion or the clamping groove on the insulating fixed body, and the interference protrusion constitutes a portion in interference fit with the middle shell installation hole.

[0012] Further, the interference protrusion has a flat surface in contact with the inner wall of the middle shell installation hole.

[0013] Further, the insulating fixing body is a square structure, and has four circumferential sides, each of which is provided with the interference protrusion, wherein the opposite two sides are provided with the clamping protrusion or the clamping groove.

[0014] Further, the middle shell mounting hole has a mounting opening for the differential assembly to be mounted, the clamping protrusion is arranged on the insulating fixing body, and the protrusion height of the clamping protrusion is greater than the protrusion height of the interference protrusion on the same side.

[0015] Further, the insulating fixing body is a square structure, and has four circumferential sides, each of which is provided with the interference protrusion, wherein the opposite two sides are provided with the clamping protrusion or the clamping groove.

[0016] Further, the middle shell mounting holes are arranged in rows, the middle shell body has a partition wall for separating two adjacent middle shell mounting holes in the same row, the adjacent inner walls of the two adjacent middle shell mounting holes in the same row are each provided with the clamping groove, the clamping protrusion is arranged on the insulating fixing body, and the clamping grooves on the adjacent inner walls of the two adjacent middle shell mounting holes in the same row are communicated to pass through the partition wall.

[0017] Further, the middle shell mounting hole has a mounting opening for the differential assembly to be mounted, the clamping protrusion is arranged on the insulating fixing body, and the protrusion height of the clamping protrusion is greater than the protrusion height of the interference protrusion on the same side.

[0018] Further, the cable connector comprises a fixing sheet, the middle shell body and the outer shell body are provided with fixing holes extending perpendicularly to the insertion direction of the cable connector, and the fixing sheet is inserted into the fixing holes of the middle shell body and the outer shell body to limit the middle shell body and the outer shell body. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of an embodiment of the cable connector of the utility model;

[0020] Figure 2 It is a structural schematic view of an embodiment of the cable connector of the utility model; Figure 1 It is a schematic view of the cable connector without the outer shell body;

[0021] Figure 3 It is a structural schematic view of an embodiment of the cable connector of the utility model; Figure 1 It is a top view of the cable connector in the utility model;

[0022] Figure 4 It is an A-A sectional view of the utility model; Figure 3 It is an A-A sectional view of the utility model;

[0023] Figure 5 Structure diagram of the differential component in the differential assembly; Figure 2

[0024] Figure 6 Structure diagram of the differential component in the differential assembly; Figure 4 Structure diagram of the differential component in the differential assembly;

[0025] Figure 7 Structure diagram of the differential component in the differential assembly; Figure 6 Structure diagram of the differential component in the differential assembly;

[0026] Figure 8 Structure diagram of the differential component in the differential assembly; Figure 7 Structure diagram of the differential component in the differential assembly;

[0027] Figure 9 Structure diagram of the differential component in the differential assembly; Figure 2 Structure diagram of the differential component in the differential assembly;

[0028] Figure 10 Structure diagram of the differential component in the differential assembly; Figure 2 Structure diagram of the differential component in the differential assembly

[0029] Figure 11 Structure diagram of the differential component in the differential assembly Figure 1 Structure diagram of the differential component in the differential assembly

[0030] Figure 12 Structure diagram of the differential component in the differential assembly; Figure 2 Structure diagram of the differential component in the differential assembly;

[0031] Figure 13 Structure diagram of the differential component in the differential assembly; Figure 4 Structure diagram of the differential component in the differential assembly;

[0032] Figure 14 Structure diagram of the differential component in the differential assembly. Figure 2 Structure diagram of the differential component in the differential assembly.

[0033] In the figure: 1, outer shell; 11, retaining wall; 12, head cavity; 13, tail cavity; 2, middle shell; 21, middle shell mounting hole; 22, clamping groove; 23, convex edge; 24, middle shell fixing hole; 3, differential assembly; 31, differential pair; 32, shielding shell; 321, shell crimping claw; 33, shielding cover; 331, cover body crimping claw; 34, insulating fixed body; 341, clamping protrusion; 342, first boss; 343, second boss; 35, cable; 4, common ground sheet; 41, common ground perforation; 42, spring claw; 5, fixed sheet; 51, main body section; 52, insertion section. DETAILED DESCRIPTION

[0034] The basic concept of the cable connector of the utility model is that the fixed insulating fixed body of the shielding structure of the differential assembly and the middle shell mounting hole are clamped and matched, the differential assembly is limitedly installed in the middle shell body, and the convenience of installation operation is favorable. ​

[0035] The utility model is further explained in detail below in combination with the embodiments.

[0036] Embodiment of the cable connector of the utility model:

[0037] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The cable connector comprises an outer shell body 1, a middle shell body 2 and a plurality of differential assemblies 3, the differential assemblies 3 are arranged in rows and are provided with a plurality of rows, each row is provided with a plurality of differential assemblies 3, in the embodiment, there are eight rows, and each row has four differential assemblies 3. Each differential assembly 3 is installed on the middle shell body 2 and is installed in the inner cavity of the outer shell body 1 together with the middle shell body 2. The differential assembly 3 comprises a differential pair 31, a shielding shell 32 and a shielding cover 33, the differential pair 31 comprises two signal terminals arranged in pairs, the parallel direction of the two signal terminals of the differential pair 31 is consistent with the parallel direction of each differential assembly 3 in the same row, the differential pair 31 is provided with an insulator peripherally, the main body of the shielding shell 32 is in U-shaped structure, the main body of the shielding cover 33 is buckled at the opening of the U-shaped main body of the shielding shell 32 to form a shielding cylinder, the differential pair 31 is installed in the shielding cylinder through the insulator, the head end of the signal terminal of the differential pair 31 is provided with a spring sheet structure for cooperating with the pin of the adaptive connector, the spring sheet structure forms the insertion end of the signal terminal, and the side wall opposite to the shielding cover 33 of the shielding cover 33 and the shielding shell 32 is provided with a avoiding opening to avoid the deformation of the spring sheet structure of the signal terminal when being inserted. The shielding cover 33 and the shielding shell 32 cooperate to form the shielding structure of the differential assembly 3 arranged peripherally to the differential pair 31, each differential assembly 3 is respectively provided with a differential pair 31, and the corresponding shielding structure shields peripherally to the differential pair 31, so that the high-speed transmission signal is facilitated.

[0038] Each differential pair 31 is connected with a cable 35, the tail end of the differential assembly 3 is connected with the cable 35, and the head end of the differential assembly 3 is used for being inserted into the adaptive connector. The differential pair 31 is connected with the two core wires of the cable 35, the shielding structure of the differential assembly 3 is fixedly connected with the shielding layer of the cable 35, the tail end of the shielding shell 32 of the shielding structure is provided with a shell crimping jaw 321, the tail end of the shielding cover 33 is provided with a cover crimping jaw 331, and the shell crimping jaw 321 and the cover crimping jaw 331 are tightly fixed on the cable 35 from the radial two sides of the cable 35. The tail end of the shielding shell 32 and the shielding cover 33 of the differential assembly 3 tightly crimps the shielding layer of the cable 35, and the crimping position is covered with an insulating fixing body 34, the insulating fixing body 34 is injection molded or glue pouring solidification molded, the insulating fixing body 34 wraps the crimping jaw and a section of the cable adjacent to the crimping jaw, the crimping jaw constitutes the part of the shielding structure for fixing with the cable, the insulating fixing body 35 is fixed with the crimping jaw and the cable through injection molding, and the reliable fixed connection of the cable and the shielding structure is ensured by using the insulating fixing body 34.

[0039] In order to facilitate the assembly operation of the cable connector, in combination Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 The middle shell 2 is provided with a middle shell mounting hole 21 for corresponding installation of the differential assembly 3. After the differential assembly is mounted on the middle shell body, the insulating fixing body 34 is located in the middle shell mounting hole 21, and the size of the insulating fixing body 34 is adapted to the middle shell mounting hole 21. The insulating fixing body 34 is provided with a clamping protrusion 341, and the inner wall of the middle shell mounting hole 21 of the corresponding middle shell body 2 is provided with a clamping groove 22. When the differential assembly 3 is mounted on the middle shell body 2, the clamping protrusion 341 on the insulating fixing body 34 is clamped in the clamping groove 22 on the inner wall of the middle shell mounting hole 21. The clamping protrusion 341 and the clamping groove 22 are clamped and matched to limit the installation of the insulating fixing body 34 in the middle shell mounting hole 21 along the extension direction of the middle shell mounting hole 21. The insulating fixing body 34 is fixed with the shielding structure, so that the differential assembly is limited and installed in the middle shell mounting hole 21 along the extension direction of the middle shell mounting hole 21. The differential assembly 3 is mounted in the middle shell mounting hole 21, which realizes the limiting and fixing of the differential assembly, prevents the differential assembly from exiting the middle shell body or displacement, and facilitates the installation operation.

[0040] In the embodiment, the clamping protrusion 341 is arranged on the insulating fixing body 34, and the clamping groove 22 is arranged on the inner wall of the middle shell mounting hole 21, which is convenient for forming. In other embodiments, the clamping protrusion can be arranged on the inner wall of the middle shell mounting hole, and the clamping groove can be arranged on the insulating fixing body.

[0041] The insulating fixing body 34 is further provided with a part for interference fit with the middle shell mounting hole 21. The interference fit structure makes the differential assembly 3 more stable and fixed on the middle shell body 2. In other embodiments, the insulating fixing body and the middle shell mounting hole can not be interfered, and the insulating fixing body is only fixed with the middle shell body by the clamping and matching structure formed by the clamping protrusion and the clamping groove.

[0042] The insulating fixing body 34 is provided with an interference protrusion part, which is arranged in a spaced manner with the clamping protrusion 341. The interference protrusion part constitutes a part for interference fit with the middle shell mounting hole 21. The interference fit is achieved by using the interference protrusion part, which is simple in structure and convenient for manufacturing. In other embodiments, the interference protrusion part can not be provided, but the side surface of the insulating fixing body is directly interfered with the inner wall of the middle shell mounting hole.

[0043] The top surface of the interference protrusion part on the insulating fixing body 34 in the protruding direction is a plane, which is in contact with the inner wall of the middle shell mounting hole 21, which is beneficial to increase the interference contact area and make the fixation reliable. In other embodiments, the top surface of the interference protrusion part can be a circular arc surface.

[0044] The insulating fixing body 34 is a square structure, and the middle shell mounting hole 21 is a square hole structure. The insulating fixing body 34 has four circumferential sides, which are parallel to the head-tail direction of the differential assembly. The head-tail direction of the differential assembly 3 is consistent with the extension direction of the middle shell mounting hole 21. The insulating fixing body 34 is provided with an interference protrusion on each of the four circumferential sides. The insulating fixing body 34 has a thickness direction and a width direction perpendicular to the head-tail direction of the differential assembly 3. The insulating fixing body 34 is provided with a first boss 342 on each of the two sides in the width direction. The insulating fixing body 34 is provided with a second boss 343 on each of the two sides in the thickness direction. The first boss 342 and the second boss 343 constitute the interference protrusion, which is beneficial to stable fixation. In other embodiments, the bosses can be provided only on the two sides in the thickness direction of the insulating fixing body or only on the two sides in the width direction of the insulating fixing body. In other embodiments, a clamping groove and a boss can be provided on the two sides in the thickness direction of the insulating fixing body. The clamping groove is closer to the head of the differential assembly than the boss. Correspondingly, the clamping protrusion is positioned correspondingly to the clamping groove.

[0045] The insulating fixing body 34 is provided with a clamping protrusion 341 on each of the two opposite sides in the width direction. The insulating fixing body 34 is provided with a clamping protrusion 341 and a first boss 342 on each of the two opposite sides in the width direction. The protrusion height of the clamping protrusion 341 is greater than the protrusion height of the interference protrusion. The protrusion height of the first boss 342 is lower than the protrusion height of the clamping protrusion 341 on the same side. The middle shell mounting hole 21 has a mounting opening for accommodating the differential assembly 3. The mounting opening is the tail end opening of the middle shell mounting hole 21. The clamping protrusion 341 is provided on the side of the interference protrusion on the same side close to the mounting opening of the middle shell mounting hole 21. When the insulating fixing body 34 is mounted in the middle shell mounting hole 21, the clamping protrusion does not need to be mounted too deep, which is labor-saving. In other embodiments, the clamping protrusion and the interference protrusion can not be provided on the same side. Two sides of the insulating fixing body are provided with clamping protrusions, and the other two sides are provided with interference protrusions. In other embodiments, the positions of the clamping protrusion and the first boss can be exchanged.

[0046] The clamping protrusion 341 is located at one end of the insulating fixing body 34 away from the head of the differential assembly. The first boss 342 is located at one end of the insulating fixing body 34 close to the head of the differential assembly. That is, the clamping protrusion is located on the side of the interference protrusion on the same side close to the mounting opening of the middle shell mounting hole. The second boss 343 on the different side from the clamping protrusion 341 is located at the edge of the insulating fixing body 34 close to the mounting opening of the middle shell mounting hole 21, which is beneficial to reducing the assembly resistance. In other embodiments, the second boss can also be provided at one end of the insulating fixing body close to the head of the differential assembly.

[0047] The card slot 22 is a rectangular slot, and the clamping protrusion 341 is a wedge-shaped protrusion. The clamping protrusion gradually increases in height along the direction of the differential assembly from the head to the tail, so as to facilitate the installation of the differential assembly from the tail side of the middle shell. The middle shell mounting hole 21 has an installation opening for the differential assembly 3 to be installed from the tail end of the middle shell 2. The card slot 22 is arranged on the inner wall of the end of the installation opening of the middle shell mounting hole 21, and the end face of the card slot 22 is close to the tail end of the middle shell 2. The interference distance between the clamping protrusion and the inner wall of the middle shell mounting hole during installation can be shortened, thereby facilitating operation. In other embodiments, the card slot can also be arranged at a middle position in the extension direction of the middle shell mounting hole.

[0048] The middle shell mounting holes 21 are arranged in rows. The parallel direction of each middle shell mounting hole 21 in the same row is consistent with the parallel direction of the two terminals of the differential pair and the width direction of the insulating fixed body 34. The middle shell 2 has a partition wall that separates the two middle shell mounting holes 21 in the same row. The partition wall is the part between the two middle shell mounting holes in the same row of the middle shell. The card slot 22 is arranged on the adjacent inner walls of the two middle shell mounting holes 21 in the same row, and the card slots 22 on the adjacent inner walls of the two middle shell mounting holes 21 in the same row are connected and pass through the partition wall. This ensures the depth of the card slot while reducing the thickness of the partition wall, which is beneficial for saving space. In other embodiments, the card slots on the inner walls of the two middle shell mounting holes can not be connected when the thickness of the partition wall is sufficient.

[0049] The outer shell 1 is provided with a barrier wall 11. The space on both sides of the barrier wall 11 in the inner cavity of the outer shell 1 forms a head cavity 12 and a tail cavity 13, respectively. The head-tail direction is consistent with the insertion direction of the cable connector. The barrier wall 11 divides the inner cavity of the outer shell 1 into two spaces. The middle shell 2 is fitted and installed in the tail cavity 13. The barrier wall 11 is provided with an outer shell mounting hole for the differential assembly 3 to pass through, so that the insertion end of the differential assembly 3 extends into the head cavity 12 through the barrier wall 11. The outer shell mounting hole on the barrier wall 11 corresponds to the differential assembly 3 and is shaped to fit. The head cavity 12 is used for inserting the corresponding part of the adapter connector to realize the insertion with each differential assembly 3.

[0050] The middle shell 2 is fixed with the outer shell 1, the middle shell 2 is interference fitted into the tail cavity 13, and meanwhile, in order to ensure reliable fixation, the cable connector comprises a fixing sheet 5, the middle shell 2 and the outer shell 1 are provided with fixing holes extending perpendicularly to the insertion direction of the cable connector, and the fixing sheet 5 is inserted into the fixing holes of the middle shell 2 and the outer shell 1 to limit the middle shell 2 and the outer shell 1. The fixing hole on the middle shell 2 is a middle shell fixing hole 24, the fixing hole on the outer shell 1 is an outer shell fixing hole, the middle shell fixing hole 24 corresponds to the outer shell fixing hole, the fixing sheet 5 is adapted to pass through the outer shell fixing hole and enter the middle shell fixing hole 24, the relative position of the middle shell 2 and the outer shell 1 in the insertion direction of the cable connector can be ensured, and reliable fixation is facilitated. In other embodiments, a clamping protrusion can be provided on the middle shell, a clamping groove is provided on the inner wall of the tail cavity of the outer shell, and the relative position of the middle shell and the outer shell is ensured by clamping the clamping protrusion into the clamping groove.

[0051] In combination Figure 11 , the fixing sheet 5 comprises a main body section 51 and an insertion section 52, the main body section 51 and the insertion section 52 extend perpendicularly, the insertion section 52 is spaced apart and has different lengths to respectively adapt to different positions of the middle shell fixing hole 24 on the middle shell 2, and the middle shell fixing hole 24 is through to the adjacent middle shell mounting hole 21. The fixing sheet 5 is inserted into the opposite sides of the outer shell 1 to ensure reliable fixation.

[0052] In order to enhance the shielding effect to adapt to the requirement of higher transmission rate of the connector, in combination Figure 12 , Figure 13 , Figure 14 , a common ground sheet 4 is arranged in the inner cavity of the outer shell 1, the common ground sheet 4 is arranged on one side of the middle shell 2, the middle shell 2 is provided with a middle shell mounting hole 21 for corresponding installation of the differential assembly 3, the common ground sheet 4 is provided with a common ground through hole 41 corresponding to the middle shell mounting hole 21, the common ground through hole 41 is for corresponding passage of the differential assembly 3, and the common ground sheet 4 is provided with a common ground contact portion in conductive contact with the shielding structure of the differential assembly 3 to shield and conduct the differential assembly 3 through the common ground sheet 4. When the differential assembly 3 is installed, the differential assembly 3 is arranged in the middle shell mounting hole 21 of the middle shell 2, the differential assembly 3 passes through the common ground through hole 41 of the common ground sheet 4 corresponding to the middle shell mounting hole 21, the insertion end of the differential assembly 3 is installed in place, the common ground contact portion of the common ground sheet 4 is in conductive contact with the shielding structure of the differential assembly 3, the shielding structure of each differential assembly 3 is in conductive contact with the common ground sheet 4, the shielding structure of each differential assembly 3 is shielded and conducted through the common ground sheet 4, the shielding structures of the differential assemblies 3 are in common ground to form equipotential, and the shielding effect can be improved.

[0053] The orifice edge of the common ground hole 41 of the common ground sheet 4 is provided with a spring claw 42, the spring claw 42 constitutes a common ground contact, the spring claw 42 forms a conductive contact with the shielding structure of the differential assembly 3, which is conducive to reliable contact. The middle shell mounting hole 21 corresponds to the differential assembly 3 one by one, the common ground hole 41 corresponds to the differential assembly 3 one by one, the middle shell mounting hole 21 corresponds to the common ground hole 41 one by one, and the differential assembly 3 is correspondingly arranged in the corresponding middle shell mounting hole 21 and the common ground hole 41. The orifice edge of each common ground hole 41 is provided with a spring claw 42 to conductively contact the shielding structure of the corresponding differential assembly 3.

[0054] The shielding structure of the differential assembly 3 is formed by the shielding shell 32 and the shielding cover 33, the main body of the shielding shell 32 and the main body of the shielding cover 33 cooperate to form a cylindrical shielding part, the cylindrical shielding part is rectangular cylindrical, in order to pass through the cylindrical shielding part of the differential assembly 3, the middle shell mounting hole 21 and the common ground hole 41 are both rectangular hole structures. The side-by-side direction of the two signal terminals of the differential pair 31 of the differential assembly 3 is defined as the width direction of the differential assembly 3, the width direction of the differential assembly 3 is consistent with the width direction of the cylindrical shielding part thereof, and the main body of the shielding shell 32 has two side walls opposite in the width direction of the cylindrical shielding part. The orifice edge of the common ground hole 41 includes two narrow side edges and two wide side edges, the two narrow side edges are opposite in the width direction of the cylindrical shielding part, and the two wide side edges are opposite in the thickness direction of the cylindrical shielding part, the two narrow side edges of the common ground hole 41 are both provided with a spring claw 42, which is conducive to stable contact between the common ground sheet 4 and the shielding structure, and the two spring claws 42 form conductive contacts with the two side surfaces in the width direction of the cylindrical shielding part, respectively, the side surface in the width direction of the cylindrical shielding part is the outer side surface of the side wall in the width direction of the main body of the shielding shell 32, and the main body of the shielding cover 33 and the corresponding bottom wall of the shielding shell 32 constitute the two side walls in the thickness direction of the cylindrical shielding part. The spring claw 42 contacts the side surface in the width direction of the shielding shell 32, avoiding the gap on the two opposite side walls in the thickness direction of the cylindrical shielding part from affecting the contact position.

[0055] The spring claw 42 is bent and inclined towards the side of the insertion end of the differential assembly 3 based on the main body of the common ground sheet 4, so as to ensure contact with the shielding structure of the differential assembly 3. During installation, the common ground sheet 4 can be sleeved onto each differential assembly 3 from the side of the head end of the differential assembly 3, and the differential assembly 3 is arranged in the corresponding common ground hole 41, facilitating assembly operation.

[0056] The retaining wall 11 has two opposite sides located at the head cavity 12 and the tail cavity 13, and the shell mounting hole penetrates through the two opposite sides of the retaining wall 11, which enhances the mounting stability of the differential assembly 3 by cooperating with the middle shell mounting hole 21. The common ground sheet 4 is arranged between the middle shell 2 and the retaining wall 11, and can be limited by the side of the middle shell 2 and the retaining wall 11 located at the tail cavity 13, which is simple in structure and reliable in limiting.

[0057] The shell mounting hole on the retaining wall 11 has a clearance space for avoiding the corresponding elastic claw 42, which can avoid the deformation of the elastic claw 42 after being stressed and affect the contact reliability. The side hole of the shell mounting hole facing the tail cavity 13 is an expanded hole structure for forming a clearance space for avoiding the elastic claw 42, and can also guide the differential assembly 3 when it penetrates into the shell mounting hole, which is convenient for assembly operation.

[0058] The side end face of the middle shell 2 close to the insertion end of the differential assembly 3 is provided with a receiving groove, and the common ground sheet 4 is arranged in the receiving groove. When the middle shell 2 is installed into the tail cavity 13 of the outer shell 1, the middle shell 2 can avoid excessively pressing the common ground sheet 4, and the elastic claw 42 of the common ground sheet 4 can be prevented from being damaged. The end face of the middle shell 2 close to the insertion end of the differential assembly 3 is opposite to the retaining wall 11, and the opposite two side edges of the end face are respectively provided with a convex edge 23. The space between the two opposite convex edges 23 and the corresponding end face of the middle shell together form a receiving groove, and the common ground sheet 4 is arranged between the two convex edges 23. When the middle shell 2 is installed into the tail cavity 13, the convex edges 23 can abut against the retaining wall 11 to protect the common ground sheet 4. The receiving groove is formed by the two convex edges 23, which is a through groove with only two side walls and the other two sides open, which can save space and reduce the size of the middle shell 2.

[0059] When the cable connector is assembled, each differential assembly 3 is first installed into the middle shell 2 from the tail of the middle shell 2, and the insertion end of the differential assembly 3 penetrates through the middle shell 2. Then, the common ground sheet 4 is sleeved on each differential assembly 3 from the head side of each differential assembly 3 and installed into the receiving groove on the end face of the middle shell 2. Finally, the outer shell 1 is integrally installed into the outer shell 1 from the tail of the outer shell 1, and the fixing sheet 5 is inserted to complete the assembly. The insulating fixing body 34 is fixed by the middle shell 2 to prevent the differential assembly from being withdrawn or displaced. The boss arranged on the insulating fixing body 34 makes the differential assembly 3 fixed by the middle shell 2 more stable. The common ground sheet 4 is in interference contact with the differential assembly, which can increase the mounting stability of the differential assembly.

[0060] Finally, it needs to be explained that the above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments without paying creative labor, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A cable connector comprising an outer housing (1), a middle housing (2) and respective differential assemblies (3) mounted in a cavity of the outer housing, the middle housing being provided with middle housing mounting holes (21) for corresponding mounting of the differential assemblies, the differential assemblies comprising differential pairs (31) and shielding structures arranged around the differential pairs, the shielding structures being provided with insulating fixing bodies (34) for fixing of cables (35), the insulating fixing bodies being located in the middle housing mounting holes, characterized in that, the middle housing mounting holes are provided with middle housing mounting hole walls (211) and the insulating fixing bodies are provided with insulating fixing body walls (341) which are in contact with the middle housing mounting hole walls. The insulating fixing body (34) and one of the inner walls of the middle shell mounting hole (21) are provided with a clamping protrusion (341), and the other is provided with a clamping groove (22) for clamping the clamping protrusion (341). The clamping protrusion and the clamping groove are clamped and matched to limit the installation of the insulating fixing body (34) in the middle shell mounting hole along the extension direction of the middle shell mounting hole (21).

2. The cable connector of claim 1, wherein, The insulating fixing body (34) is further provided with a part in interference fit with the middle shell mounting hole (21).

3. The cable connector of claim 2, wherein, The insulating fixing body (34) is provided with an interference protrusion, which is arranged in a spaced manner with the clamping protrusion (341) or the clamping groove (22) on the insulating fixing body (34), and the interference protrusion constitutes a part in interference fit with the middle shell mounting hole (21).

4. The cable connector of claim 3, wherein, The interference protrusion has a flat surface in contact with the inner wall of the middle shell mounting hole (21).

5. The cable connector of claim 3 or 4, wherein, The insulating fixing body (34) is a square structure, has four peripheral sides, and the interference protrusions are arranged on the four peripheral sides. The clamping protrusions (341) or the clamping grooves (22) are arranged on the opposite two sides.

6. The cable connector of claim 5, wherein, The middle shell mounting hole (21) has a mounting opening for mounting the differential assembly (3). The clamping protrusion (341) is arranged on the insulating fixing body (34), and the protrusion height of the clamping protrusion (341) is greater than the protrusion height of the interference protrusion on the same side. The clamping protrusion (341) is arranged on the side of the interference protrusion on the same side close to the mounting opening, and the interference protrusion on the different side from the clamping protrusion (341) is located at the edge of the insulating fixing body (34) close to the mounting opening.

7. The cable connector of claim 3 or 4, wherein, The clamping protrusion (341) and the interference protrusion are arranged on at least one side of the insulating fixing body (34). The protrusion height of the clamping protrusion (341) is greater than the protrusion height of the interference protrusion. The middle shell mounting hole (21) has a mounting opening for mounting the differential assembly (3). The clamping protrusion (341) is arranged on the side of the interference protrusion on the same side close to the mounting opening.

8. The cable connector of any one of claims 1-4, wherein, The middle shell mounting holes (21) are arranged in a row. The middle shell body (2) has a partition wall separating the adjacent two middle shell mounting holes (21) in the same row. The clamping grooves (22) are arranged on the adjacent inner walls of the adjacent two middle shell mounting holes (21) in the same row. The clamping protrusion (341) is arranged on the insulating fixing body (34). The clamping grooves (22) on the adjacent inner walls of the adjacent two middle shell mounting holes (21) are connected to penetrate the partition wall.

9. The cable connector of any one of claims 1-4, wherein, The middle shell mounting hole (21) has a mounting opening for mounting the differential assembly (3). The clamping groove (22) is arranged on the inner wall of the end of the middle shell mounting hole (21) where the mounting opening is located. The clamping protrusion (341) is arranged on the insulating fixing body (34).

10. The cable connector of any one of claims 1-4, wherein, The cable connector includes a fixing sheet (5). The middle shell body (2) and the outer shell body (1) are provided with fixing holes extending perpendicularly to the insertion direction of the cable connector. The fixing sheet (5) is inserted into the fixing holes of the middle shell body (2) and the outer shell body (1) to limit the middle shell body (2) and the outer shell body (1).

Images