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 arranged 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 a common ground piece is further arranged in the inner cavity of the outer shell. The common ground piece is provided with common ground penetrating holes corresponding to the middle shell installation holes, the common ground penetrating holes allow the corresponding differential assemblies to penetrate through, the common ground piece is provided with common ground contact parts in conductive contact with the shielding structures of the differential assemblies respectively, shielding conduction of the differential assemblies is achieved through the common ground piece, and the shielding structures of the differential assemblies are in common ground to form equipotential. The shielding effect can be improved.

Description

TECHNICAL FIELD

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

[0002] The high-speed cable connector is a kind of connector commonly used for large communication equipment, ultra-high performance server, giant computer, industrial computer, high-end storage device, to realize the connection of high-speed cable and corresponding equipment.

[0003] The structure of the 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 middle shell is overall cuboid structure, two sides in the width direction of middle shell respectively constitute insertion face and pull-out face. A plurality of layers of insertion holes are penetrated in the width direction on the middle shell, differential assembly is inserted into insertion hole from pull-out face of middle shell, and shielding shell is penetrated from insertion face of middle shell. The filling body is formed on the cable by injection molding, after differential assembly is inserted in place, filling body is located in insertion hole, and the cable is fixed, to prevent cable from shaking. Rectangular structure installation cavity is formed on the outer shell, the middle part of installation cavity is equipped with retaining wall, middle shell and installation cavity on the outer shell are inserted and matched, and the edge of insertion face of middle shell is abutted with retaining wall. Wherein, the space of the inner cavity of outer shell on the two sides of retaining wall forms head cavity and tail cavity, middle shell is installed in tail cavity, insertion hole of middle shell forms middle shell mounting hole for differential assembly to penetrate, retaining wall is equipped with outer shell mounting hole for differential assembly to penetrate and extend to head cavity, and the insertion end of differential assembly is located in head cavity, to insert adapter connector into head cavity of outer shell and insert differential assembly.

[0004] Shielding effect has great influence on signal transmission rate, the differential assembly utilizes shielding shell and shielding cover to shield differential pair, to facilitate high-speed transmission of differential signal. With the development of communication technology, signal transmission rate is higher and higher, and the requirement for shielding is also improved, and the shielding structure of the above-mentioned cable connector cannot meet the demand, and the shielding structure of each differential assembly of the above-mentioned cable connector is independent, and the potential of the shielding structure of different differential assemblies may be inconsistent, which can affect the shielding effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of cable connector to solve the problem of poor shielding effect of current cable connector.

[0006] The technical scheme of the cable connector of the utility model is:

[0007] A cable connector comprises an outer shell, a middle shell and differential assemblies in the inner cavity of the outer shell, the middle shell is provided with middle shell mounting holes for corresponding installation of the differential assemblies, the differential assemblies comprise differential pairs and shielding structures arranged around the differential pairs, and a common ground sheet is arranged in the inner cavity of the outer shell, the common ground sheet is provided with common ground through holes corresponding to the middle shell mounting holes, the common ground through holes are used for passing the corresponding differential assemblies, and the common ground sheet is provided with common ground contact portions in electrically conductive contact with the shielding structures of the differential assemblies.

[0008] Beneficial effects: The cable connector is improved on the basis of the prior art, the shielding structures of the differential assemblies are grounded by arranging the common ground sheet in the outer shell, when the differential assemblies are installed, the differential assemblies are arranged in the middle shell mounting holes of the middle shell, the differential assemblies pass through the common ground through holes of the common ground sheet, the insertion ends of the differential assemblies are installed in place, the common ground contact portions of the common ground sheet are in electrically conductively contact with the shielding structures of the differential assemblies, the shielding structures of the differential assemblies are in electrically conductive contact with the common ground sheet, the shielding structures of the differential assemblies are grounded to realize shielding conduction of the differential assemblies, and the shielding structures of the differential assemblies are grounded to form equipotential, so that the shielding effect is improved.

[0009] Further, the hole edges of the common ground through holes are provided with elastic claws, and the elastic claws constitute the common ground contact portions.

[0010] Further, the common ground through holes are rectangular holes, the hole edges of the common ground through holes include two narrow edges and two wide edges, and at least one narrow edge is provided with the elastic claw.

[0011] Further, the elastic claws are raised towards one side where the insertion ends of the differential assemblies are located.

[0012] Further, a retaining wall is arranged in the outer shell, the space of the inner cavity of the outer shell on both sides of the retaining wall forms a head cavity and a tail cavity, the middle shell is arranged in the tail cavity, the retaining wall is provided with outer shell mounting holes for passing the differential assemblies so that the insertion ends of the differential assemblies pass through the retaining wall and extend into the head cavity, the common ground sheet is arranged between the middle shell and the retaining wall, and the outer shell mounting holes have avoidance spaces for avoiding the elastic claws.

[0013] Further, the hole edges of the outer shell mounting holes on the side towards the tail cavity are flared to form the avoidance spaces for avoiding the elastic claws.

[0014] Further, one side end face of the middle shell close to the insertion ends of the differential assemblies is provided with a containing groove for containing the common ground sheet.

[0015] Further, the opposite two side edges of the end face of the middle shell are respectively provided with convex edges, and the space between the opposite two side convex edges and the end face of the middle shell jointly form the containing groove.

[0016] Further, the outer shell is provided with a baffle wall, spaces on both sides of the baffle wall in the inner cavity of the outer shell form a head cavity and a tail cavity respectively, the middle shell is installed in the tail cavity, the baffle wall is provided with an outer shell mounting hole for the differential assembly to pass through so that the plug-in end of the differential assembly extends into the head cavity through the baffle wall, and the common ground sheet is arranged between the middle shell and the baffle wall.

[0017] Further, the cable connector comprises a fixing sheet, the middle shell and the outer shell are provided with fixing holes extending perpendicularly to the plug-in direction of the cable connector, and the fixing sheet is inserted into the fixing holes of the middle shell and the outer shell to limit the middle shell and the outer shell. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of an embodiment of the cable connector of the utility model;

[0019] 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;

[0020] Figure 3 It is a structural schematic view of the cable connector in the utility model; Figure 1 It is a top view of the cable connector in the utility model;

[0021] Figure 4 It is an A-A sectional view of the utility model; Figure 3

[0022] Figure 5 It is a structural schematic view of the differential assembly in the utility model; Figure 2

[0023] Figure 6 It is a partial enlarged view of M in the utility model; Figure 2

[0024] Figure 7 It is a partial enlarged view of N in the utility model; Figure 4

[0025] Figure 8 It is a structural schematic view of the common ground sheet in the utility model; Figure 2

[0026] Figure 9 It is a structural schematic view of the middle shell in the utility model; Figure 2

[0027] Figure 10 It is a sectional structural schematic view of the middle shell in the utility model; Figure 2

[0028] Figure 11 It is a structural schematic view of the fixing sheet in the utility model. Figure 1

[0029] ​​​​​​​​In the figure: 1, the outer shell; 11, the retaining wall; 12, the head cavity; 13, the tail cavity; 2, the middle shell; 21, the middle shell mounting hole; 22, the clamping groove; 23, the convex edge; 24, the middle shell fixing hole; 3, the differential assembly; 31, the differential pair; 32, the shielding shell; 33, the shielding cover; 34, the fixing body; 341, the buckle; 35, the cable; 4, the common ground sheet; 41, the common ground perforation; 42, the elastic claw; 5, the fixing sheet; 51, the main body section; 52, the insertion section. DETAILED DESCRIPTION

[0030] The basic concept of the cable connector of the utility model is that the common ground sheet is arranged in the outer shell, the shielding structures of the differential assemblies are in conductive contact with the common ground sheet, and the shielding structures of the differential assemblies are grounded to form equipotential, so that the shielding effect can be improved.

[0031] The utility model will be specifically described below in combination with the embodiments.

[0032] Embodiments of the cable connector of the utility model:

[0033] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 , the cable connector comprises an outer shell 1, a middle shell 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 this embodiment, there are eight rows, and each row has four differential assemblies 3. Each differential assembly 3 is installed on the middle shell 2 and is installed in the inner cavity of the outer shell 1 together with the middle shell 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 insulating body around, 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 insulating body, 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 adapter 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 inserted. The shielding cover 33 and the shielding shell 32 cooperate to form the shielding structure of the differential assembly 3 arranged around the differential pair 31, each differential assembly 3 is respectively provided with a differential pair 31, and the corresponding shielding structure shields around the differential pair 31, so as to facilitate high-speed transmission signals.

[0034] In order to enhance the shielding effect to adapt to the requirement of higher transmission rate of the connector, in combination with Figure 6 、 Figure 7 、 Figure 8, Figure 9 , Figure 10 The outer shell 1 has a common ground plate 4 in its inner cavity. The common ground plate 4 is located on one side of the middle shell 2. The middle shell 2 has a middle shell mounting hole 21 for the differential component 3 to be installed. The common ground plate 4 has a common ground through hole 41 corresponding to the middle shell mounting hole 21. The common ground through hole 41 allows the corresponding differential component 3 to pass through. The common ground plate 4 has a common ground contact part that makes conductive contact with the shielding structure of the differential component 3 so that each differential component 3 can be shielded and connected through the common ground plate 4. When installing the differential component 3, the differential component 3 passes through the middle shell mounting hole 21 of the middle shell 2, and the differential component 3 passes through the common ground through hole 41 on the common ground plate 4 corresponding to the middle shell mounting hole 21, so that the mating end of the differential component 3 is installed in place. At the same time, the common ground contact part on the common ground plate 4 makes conductive contact with the shielding structure of the differential component 3. The shielding structure of each differential component 3 is in conductive contact with the common ground plate 4, so that the shielding conduction of each differential component 3 is achieved by using the common ground plate 4. The shielding structures of each differential component 3 are grounded and form equipotential, which can improve the shielding effect.

[0035] The common ground hole 41 of the common ground plate 4 has a spring claw 42 at the edge of its opening. The spring claw 42 forms a common ground contact portion, and it forms a conductive contact with the shielding structure of the differential component 3, which is beneficial for reliable contact. In other embodiments, the spring claw may not be provided. Based on the structure of the differential component passing through the common ground hole, the shielding structure of the differential component can directly contact the hole wall of the common ground hole to form a conductive contact. Alternatively, a small protrusion may be provided on the hole wall of the common ground hole to form a common ground contact portion.

[0036] The mounting holes 21 in the middle shell correspond one-to-one with the differential components 3, and the common ground through holes 41 also correspond one-to-one with the differential components 3. The differential components 3 are respectively installed in the corresponding mounting holes 21 in the middle shell and the common ground through holes 41. Each common ground through hole 41 has a spring claw 42 on its edge to make conductive contact with the shielding structure of the corresponding differential component 3.

[0037] The shielding structure of the differential component 3 is formed by the shielding shell 32 and the shielding cover 33. The main body of the shielding shell 32 cooperates with the main body of the shielding cover 33 to form a cylindrical shielding part. The cylindrical shielding part is in a rectangular tube shape. In order to pass through the cylindrical shielding part of the differential component 3, the middle shell mounting hole 21 and the common ground through hole 41 are both in a rectangular hole structure. The side-by-side direction of the two signal terminals of the differential pair 31 of the differential component 3 is defined as the width direction of the differential component 3. The width direction of the differential component 3 is consistent with the width direction of the cylindrical shielding part thereof. The main body of the shielding shell 32 has two side walls opposite in the width direction of the cylindrical shielding part. The hole edge of the common ground through 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. The two wide side edges are opposite in the thickness direction of the cylindrical shielding part. The common ground through hole 41 is provided with a spring claw 42 on each of the two narrow side edges. This is conducive to the stable contact of the common ground sheet 4 with the shielding structure. The two spring claws 42 respectively form conductive contact with the two side surfaces in the width direction of the cylindrical shielding part. 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. 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 influence of the gap in the two opposite side walls in the thickness direction of the cylindrical shielding part on the contact position. In other embodiments, if the positions of the corresponding spring claws of the two opposite side walls in the thickness direction of the cylindrical shielding part are flat surfaces, the spring claws can also contact the side surface in the thickness direction of the cylindrical shielding part. The spring claws are arranged on the wide side edge of the common ground through hole. In other embodiments, the spring claws can also be arranged only on one side edge of the hole of the common ground through hole. The common ground sheet forms contact with one side surface in the width direction of the cylindrical shielding part of the differential component through one spring claw.

[0038] The spring claw 42 is bent and inclined towards the side of the insertion end of the differential component 3 based on the main body of the common ground sheet 4. The insertion end of the differential component 3 is the head end thereof. The insertion end of the differential component 3 is used to form the insertion end of the cable connector. The spring claw 42 is bent and inclined towards the side of the insertion end of the differential component 3 to ensure contact with the shielding structure of the differential component 3. During installation, the common ground sheet 4 can be sleeved onto each differential component 3 from the side of the head end of each differential component 3, and each differential component 3 can be arranged in the corresponding common ground through hole 41, facilitating assembly operation. In other embodiments, the spring claw can also be bent towards the tail end of the differential component under the permission of assembly operation.

[0039] The outer shell 1 is provided with a baffle wall 11. Spaces on both sides of the baffle wall 11 in the inner cavity of the outer shell 1 form 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 baffle 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 baffle wall 11 is provided with a shell mounting hole through which the differential assembly 3 passes so that the insertion end of the differential assembly 3 extends into the head cavity 12 through the baffle wall 11. The shell mounting hole on the baffle 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 insertion with each differential assembly 3.

[0040] The baffle wall 11 has two opposite sides located in the head cavity 12 and the tail cavity 13. The shell mounting hole penetrates the two opposite sides of the baffle wall 11. The shell mounting hole is used in cooperation with the middle shell mounting hole 21 to enhance the installation stability of the differential assembly 3. The common ground sheet 4 is arranged between the middle shell 2 and the baffle wall 11. The common ground sheet 4 can be limited by the side of the baffle wall 11 located in the tail cavity 13. The structure is simple and reliable. In other embodiments, when the differential assembly can be installed stably by the middle shell, the baffle wall for installing the differential assembly can not be provided, and an inner ring table is arranged in the outer shell. The inner ring table is used in cooperation with the middle shell to limit and install the common ground sheet.

[0041] The shell mounting hole on the baffle wall 11 has an avoidance space for avoiding the corresponding elastic claw 42. The elastic claw 42 that is raised on the side where the insertion end of the differential assembly 3 is located can be avoided. The deformation of the elastic claw 42 after being stressed is avoided to affect the contact reliability. In other embodiments, a relatively large space can be left between the baffle wall and the middle shell to accommodate the common ground sheet to avoid the elastic claw being stressed in the insertion direction of the connector.

[0042] The side hole of the shell mounting hole facing the tail cavity 13 is an expanded hole structure for forming an avoidance space for avoiding the elastic claw 42. At the same time, the shell mounting hole can also guide the differential assembly 3 when it penetrates into the shell mounting hole, which is convenient for assembly operation. In other embodiments, an avoidance groove can be arranged at the side hole of the shell mounting hole facing the tail cavity. The avoidance groove forms an avoidance space for avoiding the elastic claw.

[0043] The side end face of the middle shell 2 close to the insertion end of the differential assembly 3 is provided with a containing groove. The common ground sheet 4 is arranged in the containing 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. In other embodiments, if the torque is not large during installation, the containing groove can not be provided, and the common ground sheet abuts against the end face of the planar structure of the middle shell.

[0044] The end face of the middle shell 2 close to the insertion end of the differential assembly 3, that is, the end face opposite to the retaining wall 11, is provided with a protrusion 23 at each of the opposite side edges. The space between the two protrusions 23 and the corresponding end face of the middle shell together form a receiving groove. The common ground sheet 4 is arranged between the two protrusions 23. When the middle shell 2 is inserted into the tail cavity 13, the protrusions 23 can abut against the retaining wall 11 to protect the common ground sheet 4. The receiving groove formed by the two protrusions 23 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. In other embodiments, the receiving groove with four side walls can be provided for the common ground sheet to be inserted into the receiving groove when the space permits.

[0045] The middle shell 2 is fixed to the outer shell 1 and is inserted into the tail cavity 13 in an interference fit. In order to ensure reliable fixation, the cable connector includes a fixing sheet 5. The middle shell 2 and the outer shell 1 are provided with fixing holes extending perpendicular to the insertion direction of the cable connector. 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, and 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, which can ensure the relative position of the middle shell 2 and the outer shell 1 in the insertion direction of the cable connector, and is conducive to reliable fixation. In other embodiments, a clamping protrusion can be provided on the middle shell, and a clamping groove can be provided on the inner wall of the tail cavity of the outer shell. The relative position of the middle shell and the outer shell can be ensured by clamping the clamping protrusion into the clamping groove.

[0046] In combination Figure 11 , the fixing sheet 5 includes a main body section 51 and an insertion section 52. The main body section 51 and the insertion section 52 extend in perpendicular directions. 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. The middle shell fixing hole 24 is in communication with the adjacent middle shell mounting hole 21. The fixing sheet 5 is inserted into the fixing holes of the opposite sides of the outer shell 1 to ensure reliable fixation.

[0047] In combination Figure 4 , Figure 5 , Figure 9 , the tail end of the differential assembly 3 is connected to a cable 35. The tail end of the shielding shell 32 and the shielding cover 33 of the differential assembly 3 tightly clamps the shielding layer of the cable 35, and the clamping part is covered with a fixing body 34. The fixing body 34 is injection molded. The fixing body 34 is inserted into the middle shell mounting hole 21. In order to prevent the differential assembly 3 from retreating, the fixing body 34 is provided with a buckle 341. The hole wall of the corresponding middle shell mounting hole 21 of the middle shell 2 is provided with a clamping groove 22. When each differential assembly 3 is mounted on the middle shell 2, the buckle 341 on the fixing body 34 is clamped in the clamping groove 22 on the hole wall of the middle shell mounting hole 21, which plays a role in preventing retreat.

[0048] In assembling the cable connector, each differential assembly 3 is first assembled into the middle housing 2 from the tail end of the middle housing 2, the insertion end of the differential assembly 3 penetrates through the middle housing 2, then the common ground sheet 4 is sleeved on each differential assembly 3 from the head end side of each differential assembly 3 and assembled into the accommodating groove on the end face of the middle housing 2, and then the whole is assembled into the outer housing 1 from the tail end of the outer housing 1, and the assembly is completed by inserting the fixing sheet 5.

[0049] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified without the need to pay the creative labor of the technical solutions recorded in the foregoing embodiments, or for part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A cable connector comprising an outer housing (1), a middle housing (2) and differential assemblies (3) in the inner cavity of the outer housing, the middle housing (2) is provided with middle housing mounting holes (21) for corresponding installation of the differential assemblies, the differential assemblies (3) comprise differential pairs (31) and shielding structures arranged at the periphery of the differential pairs, characterized in that, The common ground sheet (4) is provided in the inner cavity of the outer shell (1), and is provided with a common ground through hole (41) corresponding to the middle shell mounting hole (21), the common ground through hole (41) is used for passing the corresponding differential assembly (3), and the common ground sheet (4) is provided with a common ground contact part which is in conductive contact with the shielding structure of each differential assembly (3).

2. The cable connector of claim 1, wherein, The common ground through hole (41) is provided with a spring claw (42) at the hole edge, and the spring claw (42) constitutes the common ground contact part.

3. The cable connector of claim 2, wherein, The common ground through hole (41) is a rectangular hole, and the hole edge includes two narrow edges and two wide edges, and at least one narrow edge is provided with the spring claw (42).

4. The cable connector according to claim 2 or 3, characterized in that, The spring claw (42) is raised towards one side of the insertion end of the differential assembly (3).

5. The cable connector of claim 4, wherein, The outer shell (1) is provided with a baffle wall (11), and the space on both sides of the baffle wall (11) in the inner cavity of the outer shell (1) forms a head cavity (12) and a tail cavity (13), respectively, the middle shell (2) is mounted in the tail cavity (13), the baffle wall (11) is provided with an outer shell mounting hole for passing the differential assembly (3) so that the insertion end of the differential assembly (3) passes through the baffle wall (11) and extends into the head cavity (12), the common ground sheet (4) is arranged between the middle shell (2) and the baffle wall (11), and the outer shell mounting hole has an avoidance space for avoiding the spring claw (42).

6. The cable connector of claim 5, wherein the housing The hole edge of the mounting hole on the side towards the tail cavity (13) is an expanded hole structure for forming the avoidance space for avoiding the spring claw (42).

7. The cable connector according to claim 1 or 2 or 3, wherein a side end face of the middle shell (2) close to the insertion end of the differential assembly (3) is provided with a containing groove for containing the common ground sheet (4).

8. The cable connector according to claim 7, wherein the opposite two side edges of the end face of the middle shell (2) are respectively provided with a convex edge (23), and the space between the opposite two convex edges (23) and the end face of the middle shell (2) jointly form the containing groove.

9. The cable connector of claims 1, 2 or 3, wherein, The outer shell (1) is provided with a baffle wall (11), and the space on both sides of the baffle wall (11) in the inner cavity of the outer shell (1) forms a head cavity (12) and a tail cavity (13), respectively, the middle shell (2) is mounted in the tail cavity (13), the baffle wall (11) is provided with an outer shell mounting hole for passing the differential assembly (3) so that the insertion end of the differential assembly (3) passes through the baffle wall (11) and extends into the head cavity (12), and the common ground sheet (4) is arranged between the middle shell (2) and the baffle wall (11).

10. The cable connector of claims 1, 2 or 3, wherein, 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).

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