CN111430959A

CN111430959A - Cable connector

Info

Publication number: CN111430959A
Application number: CN202010214444.0A
Authority: CN
Inventors: 李栋
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-07-17
Anticipated expiration: 2040-03-24
Also published as: CN111430959B

Abstract

The invention provides a cable connector which can solve the problems that the through-current capacity is influenced and the operation is inconvenient because an inner core wire of the connector is bent before welding in the prior art. The cable connector includes: a cable; connectors connected to both ends of the cable; the connector of at least one end includes: an insulator; the contact assemblies are arranged in the insulator in a row mode, one end of each contact assembly, which extends out of the insulator, is a plug-in end, and the other end of each contact assembly is provided with a wiring end; wherein the terminals of the contact assemblies in each row are in the same plane, and the ends of the cables are horizontally lapped on the terminals of the contact assemblies and connected with the contact assemblies. The wiring end of each row of contact assemblies is located the coplanar, when welding operating personnel only with the tip of cable directly put on the wiring end can, need not to adjust the position of cable and contact assembly again, can avoid buckling the conductor and influence the current capacity of cable and contact assembly when the on-the-spot welding, it is also more convenient to operate.

Description

Cable connector

Technical Field

The invention relates to the technical field of connectors, in particular to a cable connector.

Background

In the conventional connector, the contact for mating with the mating connector is generally connected to the connector cable by welding, such as an electrical connector assembly disclosed in patent document No. CN105470679B, entitled 2019.12.27, which is composed of a plurality of terminal modules stacked together, and a shielding sheet for electromagnetic shielding is disposed between the two adjacent terminal modules. The terminal module comprises a plurality of paired differential terminals, the front ends of the differential terminals are used for being contacted with the adaptive connector, and the tail ends of the differential terminals are used for being connected with the cable. The cable comprises a grounding core wire and a differential core wire, the differential core wire is welded with the tail part of the differential terminal, and the grounding core wire is welded with the shielding sheet.

Since the shield plate is disposed between the two terminal modules, and the shield plate is different from the differential terminal in the terminal module, the grounding core wire must be bent during welding to contact the shield plate, but there is a problem that when the grounding core wire is bent:

1) the current capacity of a metal conductor such as a core wire is affected after bending;

2) the heart yearn is tiny and arrange closely, buckles the back and welds again, operates inconveniently.

Disclosure of Invention

The invention aims to provide a cable connector which can solve the problems that the through-current capacity is influenced and the operation is inconvenient because an inner core wire of the connector is bent before welding in the prior art.

In order to achieve the purpose, the cable connector adopts the following technical scheme:

a cable connector, comprising:

a cable;

connectors connected to both ends of the cable;

the connector of at least one end includes:

an insulator;

the contact assemblies are arranged in the insulator in a row mode, one end of each contact assembly, which extends out of the insulator, is a plug-in end, and the other end of each contact assembly is provided with a wiring end;

wherein the terminals of the contact assemblies in each row are in the same plane, and the ends of the cables are horizontally lapped on the terminals of the contact assemblies and connected with the contact assemblies.

The beneficial effects are that: the wiring ends of each row of contact assemblies are positioned on the same plane, and an operator only needs to directly place the end part of the cable on the wiring ends during welding without adjusting the positions of the cable and the contact assemblies, so that the influence on the through-current capacity of the cable and the contact assemblies due to the bending of conductors during field welding can be avoided, and the operation is more convenient; meanwhile, when welding, the wiring end on the same plane can ensure that the welding point position of the wiring end and the cable is also on the same plane, and the welding consistency is good.

Furthermore, the contact surface of the terminal for placing the cable is a plane, and the part of at least a part of the core wire of the cable, which is connected with the terminal, is squashed and attached to the contact surface.

The beneficial effects are that: with partly heart yearn tip flattening in the cable, area of contact when can increasing the cable and take and put on contact module reduces the rosin joint, improves the welding yield, has also increased the through flow area of cable and contact module simultaneously, has reduced contact resistance.

Furthermore, the cable comprises more than two kinds of core wires with different wire diameters, the part of the thick core wire connected with the wiring terminal is of a flat structure, and the thickness of the flat structure is the same as the diameter of the thin core wire.

The beneficial effects are that: the thick core wire is flattened, the thickness of the thick core wire is the same as the diameter of the thin core wire, and when the thick core wire is welded through laser welding, the thickness of the connecting part of the thick core wire and the thin core wire is the same, so that the welding yield and the welding consistency of the core wires with different wire diameters can be improved.

Furthermore, the contact assembly comprises differential contacts and shielding contacts which are paired, the cable comprises cable cores corresponding to the contact assemblies, the cable cores in the cable cores comprise grounding wires and signal wires, the grounding wires are connected with the shielding contacts, and the signal wires are connected with the differential contacts;

the shielding contact piece comprises a main piece body, the plane where the two differential contact pieces in pair are located is parallel to the main piece body, and the main piece body and the differential contact pieces in pair are arranged at intervals in the thickness direction of the main piece body;

the main sheet body is provided with an overhanging connecting arm, the connecting arm forms a terminal of the shielding contact element, and at least one of the terminal of the shielding contact element and the terminal of the differential contact element is bent towards the other terminal so that the terminals of the shielding contact element and the differential contact element are positioned on the same plane.

The beneficial effects are that: the connecting arm is arranged on the shielding contact element, so that the terminal position of the shielding contact element can be raised, and the differential contact element and the terminal of the shielding contact element are favorably positioned on the same plane.

Furthermore, the shielding contact is U-shaped, the differential contacts corresponding to the shielding contact are located in the U-shaped space, and the main plate body is formed by the bottom walls of the U-shaped shielding contacts.

The beneficial effects are that: the shielding contact piece with the U-shaped cross section is adopted, the connecting arm on the shielding contact piece and the wiring end of the differential contact piece are positioned in a space surrounded by the shielding contact piece, and the shielding effect is good.

Furthermore, the insulator is of a frame-shaped structure, the contact assemblies in a row are arranged along the length direction of the frame-shaped insulator, and the connecting positions of the wiring terminals and the core wires are positioned in the frame holes of the frame-shaped structure so as to weld the wiring terminals and the core wires;

the main sheet body is connected with two opposite frame edges in the width direction of the frame-shaped insulator, a through hole opposite to the frame hole is formed in the position, corresponding to the frame hole, of the main sheet body, and the connecting arm is suspended in the frame hole;

the ends of the differential contacts constitute terminals and overhang the frame holes.

The beneficial effects are that: a frame-shaped insulator is adopted, the connecting position of the cable and the contact component is positioned in a frame hole, and the frame hole naturally forms an installation space which enables an operator to connect the cable and the contact component by laser welding; during field operation, an operator can directly install the contact assembly and the cable on the insulator first and then perform laser welding operation, so that the assembly efficiency is high, and time and labor are saved; meanwhile, the connection stability of the contact assembly and the cable can be improved.

Further, the overhanging direction of the connecting arm is opposite to the overhanging direction of the terminal of the differential contact.

The beneficial effects are that: the connecting arm and the terminal of the differential contact piece are suspended in opposite directions, and two oppositely-arranged supporting points can be formed in the extending direction of the cable, so that the problem that the cable is easy to weld and deform due to the fact that the cable is only supported on one side during welding is solved.

Furthermore, the main sheet body is provided with two connecting arms which are respectively arranged at two sides of the paired differential contacts in the width direction.

The beneficial effects are that: the connecting arms are arranged on two sides of the paired differential contact pieces, so that a relatively closed shielding space can be enclosed at the differential contact pieces when the shielding contact pieces are connected with the grounding wire, and the shielding effect is ensured.

Further, the wire diameter of the core wire connected to the differential contact is larger than the wire diameter of the core wire connected to the shield contact.

The beneficial effects are that: the core wire connected with the differential contact element has large wire diameter, so that the reliability of signal transmission can be ensured, and the core wire connected with the shielding contact element has no conductive requirement, so that the wire diameter can be reduced, the radial size of the whole cable core can be reduced, the occupied space is reduced, and the structure of the connector is also simplified.

Furthermore, a wire clamping groove is formed in the insulator and used for clamping the cable so that the cable and the insulator can be fixed relatively.

The beneficial effects are that: the cable clamping groove is formed in the insulator, the cable is fixed relative to the insulator through the cable clamping groove, the cable can be positioned during welding, and welding accuracy of the cable and the contact assembly is guaranteed.

Drawings

Fig. 1 is a schematic structural view of a cable connector embodiment 1 of the present invention;

FIG. 2 is a schematic view of the connector at one end of the cable of FIG. 1;

FIG. 3 is a schematic structural view of the housing of FIG. 2;

fig. 4 is a schematic structural view of a terminal module in embodiment 1 of the cable connector of the present invention;

figure 5 is a schematic view of a cable core and contact assembly according to embodiment 1 of the cable connector of the present invention;

figure 6 is an enlarged view of the cable core to contact assembly connection of figure 5;

FIG. 7 is a schematic view of the contact shield of FIG. 4;

in the figure:

01-a housing; 02-terminal module group; 03-a cable; 04-clamping groove; 05-card interface; 06-avoiding holes; 07-terminal module;

10-an insulator; 11-frame holes; 12-wire clamping grooves; 13-a retaining hole; 14-a latch;

20-a shield contact; 21-a spring arm; 22-a through hole; 23-a clamping sheet;

30-differential contacts; 31-a terminal; 40-a cable core; 41-signal line; 411-flat position; 42-ground line.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may 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. Also, 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the cable connector according to the present invention will be described in further detail with reference to the following embodiments.

Embodiment 1 of the cable connector of the present invention: as shown in fig. 1 and 2, the cable connector includes a cable 03 and connectors connected to both ends of the cable 03, wherein the connector at one end mainly includes a housing 01 and a terminal module group 02 mounted in the housing 01, the terminal module group 02 includes a plurality of terminal modules 07, and each of the terminal modules 07 is arranged in the housing 01 in a manner of being stacked in a thickness direction.

As shown in fig. 3, the housing 01 has an inner cavity for inserting the terminal module 07, an avoiding hole 06 for extending the front end of the terminal module 07 is provided on the cavity wall of the inner cavity, and a clamping groove 04 extending along the direction of the plug bush of the terminal module 07 is correspondingly provided in the clamping groove 04, when the terminal module 07 is inserted into the clamping groove 04, the clamping structure on the terminal module 07 can be clamped into the clamping groove 05 to be connected with the housing 01 in an anti-dropping manner.

Each terminal module 07 includes an insulator 10, and a contact assembly mounted on the insulator 10. In each terminal module 07, four sets of contact assemblies are arranged on the insulator, each set including a pair of differential contacts 30 and a shield contact 20 corresponding to the pair of differential contacts 30. The cable 03 has four cable cores 40 connected to the contact assemblies in the terminal module 07, and the structure and connection relationship of the respective parts will be described in detail.

As shown in fig. 4, the insulator 10 is a frame-shaped structure, the projection is rectangular, and includes four frames connected end to end, a vertical through mounting space, i.e., a frame hole 11, is enclosed between the frames, wherein the outer side walls of two short frames are provided with elastic claws 14, and the elastic claws 14 are used as a clamping structure in the terminal module 07 and can be clamped and fixed with the clamping interface 05 in the housing 01. The two opposite long frames of the insulator are respectively provided with structures for supporting the cable core 40 and fixing the shield contact 20. Specifically, four recessed wire clamping grooves 12 are formed on the top surface of one of the long frames, so that the ends of the cable core 40 can be clamped in the grooves, and the cable core 40 is arranged along the length direction of the insulator, and the ends of the cable core 40 for connecting with the contact pieces are positioned in the frame holes 11. Three vertically penetrating clamping holes 13 are formed in the frame opposite to the frame provided with the wire clamping groove 12, and are used for fixing the shielding contact 20, so that the contact assemblies are also arranged in a row along the length direction of the insulator 10. Because the contact assembly and the cable core 40 are disposed on the two opposing frames, the connection position of the terminal of the contact assembly and the cable core 40 is located in the frame hole 11.

As shown in fig. 5 and 6, the four cable cores arranged in the cable connector have the same structure and can be clamped in the clamping groove 12 of the insulator 10. Two core wires, namely a signal wire 41 and a ground wire 42, are arranged in the cable core 40, two signal wires 41 are branched at the outlet end of the cable core 40, one pair of the two signal wires 41 is used for being correspondingly connected with the two differential contacts 30 in a pair, the positions of the signal wires 41 used for being connected with the differential contacts 30 are flattened to form flat positions 411 shown in the figure, and the flat positions 411 can increase the current conducting areas of the signal wires 41 and the differential contacts 30. Two grounding wires 42 are further branched from the end of each cable core 40, the two grounding wires 42 are respectively positioned at two sides of the two signal wires 41, the wire diameter of the grounding wire 42 is smaller than that of the signal wire 41, and the thickness of the end of the signal wire 41 can be the same as the diameter of the grounding wire 42 after the flat position 411 is arranged on the signal wire 41.

As shown in fig. 7, the shielding contact 20 is a cover structure with a U-shaped cross section, and includes a bottom wall as a main sheet body and a side wall formed by folding two sides of the bottom wall, a clamping piece 23 is disposed on the side wall, the clamping piece 23 can penetrate into a clamping hole 13 on the insulator 10 from bottom to top, an aperture of the clamping hole 13 is slightly smaller than a thickness of the clamping piece 23, and the clamping piece 23 is squeezed into the clamping hole 13 in a tight-fitting manner, so as to achieve a fixed connection between the shielding contact 20 and the insulator 10. On the bottom wall of the shield contact 20, a through hole 22 is provided opposite to the frame hole 11, two spring arms 21 are folded upward at the edge of the through hole 22 to be welded to the ground wire 42 as connection arms, and the spring arms 21 also correspond to terminals for connecting the shield contact 20 to the cable core 40.

In the present embodiment, four shield contacts 20 are provided corresponding to the number of cable cores 40, and the four shield contacts 20 are arranged in a row. Two adjacent clamping pieces 23 on two adjacent shielding cases are clamped in the same clamping hole 13. In order to stably connect the two shield contacts 20 to the insulator 10 end to end in the arrangement direction of the shield contacts 20, the frame is further provided with a locking hole into which only a single holding piece 23 is locked. During assembly, the four shielding contacts 20 are clamped on the bottom surface of the frame, and meanwhile, an avoiding cavity for avoiding the side wall of the shielding contact 20 is further arranged on the bottom surface, so that the end part of the shielding contact 20 extends into the frame hole 11.

The differential contacts 30 are provided in four pairs, the four pairs of differential contacts 30 are arranged in a row, each pair of differential contacts 30 is embedded on the frame of the insulator 10, the terminal 31 of the differential contact 30 extends into the frame hole 11, the other end of the differential contact 30 extends out of the insulator 10 as a plug end, the terminal 31 of the differential contact 30 and the spring arm 21 are suspended in an opposite manner, and the spring arm 21 is located on two sides of the pair of differential contacts 30. The entire differential contact 30 is located in the inner cavity of the shield contact 20, and the differential contact 30 is spaced from the bottom wall of the shield contact 20, so that the U-shaped structure of the shield contact 20 is used to shield the differential contact 30 from electromagnetic interference.

In the assembly of the cable connector in this embodiment, the differential contact 30 is connected to the signal line 41 by laser welding, and the spring arm 21 of the shield contact 20 is connected to the ground line 42. The connection positions of the signal wire 41 and the ground wire 42 for welding with the corresponding structures are lower sides, the lower sides of the signal wire 41 and the ground wire 42 are located in the same plane, the thickness of the signal wire 41 is the same as the diameter of the ground wire 42 after being flattened, and the flattened position 411 located at the lower end of the signal wire 41 is used for connecting with the differential contact 30.

The connection surface of the spring arm 21 of the shield contact 20 to the ground wire 42 of the core wire is an upper surface, the connection surface of the terminal 31 of the differential contact 30 to the signal wire 41 is also an upper surface, and the spring arm 21 is folded from the plane of the bottom wall to the space inside the shield case, so that the position where the spring arm 21 is connected to the ground wire 42 is located in the cavity of the shield contact 20. Meanwhile, when the differential contact 30 extends into the frame hole 11, the differential contact is located in a space between the two corresponding elastic arms 21, and the upper surfaces of the elastic arms 21 and the upper surfaces of the terminals of the differential contact 30 are in the same plane.

Here, the lower side surface of the signal line 41 and the lower side surface of the ground line 42 are arranged at intervals in the horizontal direction, and the same as the intervals in the horizontal direction of the upper surfaces of the spring arm and the external conductor, it can be said that the signal line 41 is opposed to the differential contact 30 and the ground line 42 is opposed to the spring arm 21 in the vertical direction. In connection, the cable 03 may be placed on the spring arm 21 and the differential contact 30 in the top-down direction, and when the differential contact 30 is brought into close contact with the signal line 41, the spring arm 21 is brought into close contact with the ground line 42 at the same time, and the signal line 41 and the ground line 42 having the lower surfaces flush with each other are on the same reference surface. After the alignment, the operator may use a green weak laser to laser weld the differential contacts 30 and the signal lines 41, the ground lines 42 and the spring arms 21. After the welding is completed, glue is injected, and the insulator 10, the cable core 40, and the contact assembly are all placed in the housing 01.

The cable connector of the present invention is not limited to the technical solutions provided in embodiment 1, and the technical solutions provided in the following embodiments may also be adopted.

Embodiment 2 of the cable connector of the present invention: the difference from the above embodiment is that in the present embodiment, the portions of the cable where the ground line and the signal line are connected to the contact are flattened, and the connection portions of the ground line and the signal line are flattened. In other embodiments, if the wire diameter of the signal wire is larger than that of the ground wire, the signal wire may be provided with a flat position, and the ground wire may also be provided with a flat position, which is not limited to a thick core wire and can be flattened to form a flat position.

Embodiment 3 of the cable connector of the present invention: the difference from the above embodiment is that in this embodiment, the terminal of the differential contact is bent toward the spring arm on the shield contact, so that the portion of the spring arm for connecting with the ground line and the portion of the differential contact for connecting with the signal line are in the same plane, and the spring arm is not limited to the scheme of bending the spring arm to make the spring arm and the differential contact coplanar.

Embodiment 4 of the cable connector of the present invention: the difference from the above embodiment is that in this embodiment, a through hole is still provided on the bottom wall of the shield contact, and a spring arm as a connection arm that is tilted upward is folded along the through hole, but the overhanging direction of the spring arm is the same as that of the differential contact terminal.

Embodiment 5 of the cable connector of the present invention: the difference from the above embodiment is that in this embodiment, the shield contact is a cylindrical structure, and the differential contact can be inserted into the cylindrical structure to realize omni-directional shielding by virtue of the cylindrical structure. At this time, a connection arm as a shield contact terminal is provided at an end of the cylindrical structure. The connecting arm is suspended from the end part of the cylindrical structure to the cable core, and the connecting arm and the end part of the differential contact part extending out of the cylindrical structure are positioned on the same plane, and the connecting arm and the differential contact part are not limited to the shielding contact part with the U-shaped section and the semi-closed structure.

Embodiment 6 of the cable connector of the present invention: the difference from the above embodiment is that in this embodiment, the shielding contact is a flat plate structure, and includes a main body, when the main body is fixed on the insulator, the paired differential contacts corresponding to the shielding contact will fall into the projection of the main body, and the main body can shield the electromagnetic interference between the differential contacts in two adjacent rows.

Embodiment 7 of the cable connector according to the present invention is different from the above-described embodiments in that the shield contact includes a horizontal plate and a vertical plate connected to the horizontal plate perpendicularly, the shield contact has a section of L, the horizontal plate in the shield contact is used as a main body, and the pair of differential contacts corresponding to the shield contact falls into the projection of the main body, and the pair of differential contacts does not contact the space enclosed by the horizontal plate and the vertical plate.

Embodiment 8 of the cable connector of the present invention: the difference from the above embodiment is that in this embodiment, the connecting arm is a truncated cone-shaped protrusion formed on the bottom wall of the shield contact by stamping, and the top surface of the truncated cone-shaped protrusion is in the same plane as the terminal of the differential contact. In other embodiments, the shape of the protrusion may also be a sphere, a cylinder, a cuboid, or the like.

Embodiment 9 of the cable connector of the present invention: the cable connector is different from the above embodiments in that in the present embodiment, a shell with a split structure is configured in the cable connector, the insulator is fastened inside by the shell after the contact assembly is connected, at this time, a wire clamping groove for clamping a cable is not provided on the insulator, but a fixing hole for fixing the cable is provided on the shell, and after the shell is fastened, the outer circumferential surface of the cable can be held tightly by the hole wall of the fixing hole, thereby fixing the cable.

Embodiment 10 of the cable connector of the present invention: the difference from the above embodiments is that in this embodiment, the insulator has a plate-shaped structure, and a fixing structure for fixing the cable core and the contact assembly is provided on the plate-shaped insulator, and at this time, the terminals of the differential contact and the shield contact in the contact assembly are suspended on one side of the plate-shaped insulator, and the connection surfaces connected to the cable are in the same plane, and the application is not limited to the frame-shaped insulator.

Embodiment 11 of the cable connector of the present invention: the difference with the above embodiment is that, in this embodiment, the contact surface of the terminal end of the contact assembly, which is used for connecting with the corresponding core wire, may be a V-shaped surface or an arc surface adapted to the shape of the core wire, and during welding, the cylindrical core wire may be directly placed on the V-shaped surface or the arc surface, and at this time, the core wire does not need to be flattened.

In other embodiments, the connectors at both ends of the cable are the same, and the technical solutions provided in the above embodiments can be adopted. In other embodiments, only one terminal module may be disposed in the connector, and the arrangement is not limited to the scheme of stacking a plurality of terminal modules.

The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A cable connector, comprising:

a cable;

connectors connected to both ends of the cable;

it is characterized in that the preparation method is characterized in that,

the connector of at least one end includes:

an insulator;

2. The cable connector of claim 1, wherein the contact surface of the terminal for receiving the cable is a flat surface, and at least a portion of the core wires of the cable connected to the terminal are flattened to abut against the contact surface.

3. The cable connector of claim 2, wherein the cable includes two or more kinds of core wires having different wire diameters, the thick core wire has a flat structure at a portion connected to the terminal, and the flat structure has a thickness equal to a diameter of the thin core wire.

4. The cable connector according to claim 1, 2 or 3,

the contact assembly comprises differential contact elements and shielding contact elements which are paired, the cable comprises cable cores corresponding to the contact assemblies, the cable cores in the cable cores comprise grounding wires and signal wires, the grounding wires are connected with the shielding contact elements, and the signal wires are connected with the differential contact elements;

5. The cable connector of claim 4, wherein the shield contact is U-shaped, the differential contacts of the pair corresponding to the shield contact are in the U-shaped space, and the main body is formed by the bottom wall of the U-shaped shield contact.

6. The cable connector of claim 4, wherein the insulator is a frame-like structure, the contact assemblies are arranged in a row along a length of the frame-like insulator, and the connection positions of the terminals and the core wires are located in the frame holes of the frame-like structure so as to weld the terminals and the core wires;

7. The cable connector of claim 6, wherein the cantilevered direction of the connecting arm is opposite to the cantilevered direction of the terminals of the differential contacts.

8. The cable connector of claim 4, wherein there are two connecting arms disposed on the main body, and the two connecting arms are disposed on two sides of the paired differential contacts in the width direction.

9. The cable connector according to claim 4, wherein a wire diameter of the core wire connected to the differential contact is larger than a wire diameter of the core wire connected to the shield contact.

10. The cable connector according to claim 1, 2 or 3, wherein the insulator is provided with a cable-catching groove for catching the cable to fix the cable relative to the insulator.