Cable connector

Abstract

The utility model provides a cable connector, which comprises an insulating body, and an accommodating chamber in the insulating body is provided with an electrical module, the electrical module comprises a circuit board, a plurality of contacts and a plurality of welding pads are respectively arranged on two sides of at least one surface of the circuit board, and the plurality of welding pads are used for welding wire cores of a plurality of cables; the clamping shell is arranged outside the electrical module, the clamping shell comprises an upper cover cap and a lower supporting plate which can be combined with each other, and the opposite inner sides of the cover cap and the supporting plate are respectively provided with an upper glue blocking part and a lower glue blocking part which can prevent the glue covering and fixing the plurality of cables from overflowing forwards; a filling area for filling and solidifying the colloid is formed behind the upper glue blocking part and the lower glue blocking part, and a hollow area is formed at the welding position of the circuit board and the plurality of cables corresponding to the front of the upper glue blocking part and the lower glue blocking part in the insulating body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cable connectors, especially when the clamping shell of cable connector is assembled by being inserted into insulating body, the upper rubber blocking portion and lower rubber blocking portion of cover and supporting plate are abutted on plurality of cable external, to form the tight structure that can block the overflow of glue of in-mold injection method to front, so that the cable of filling area located behind upper rubber blocking portion and lower rubber blocking portion can be fixed by the glue solidified, the fixed cable has the efficacy of improving near-end crosstalk and far-end crosstalk problem, and the hollow is formed in the welding place of circuit board and plurality of cable located in front of upper rubber blocking portion and lower rubber blocking portion, and the area that signal wire core and air contact is retained, to control the impedance matching of electrical connector, and transmission signal attenuation value caused by insertion loss and reflection loss can be reduced. BACKGROUND

[0002] Nowadays electronic industry grows rapidly and matures, many different 3C function electronic products are developed and manufactured according to different needs, especially the overlapping speed of computer, notebook computer, tablet computer and smart phone is beyond imagination, and the update direction is nothing more than processor operation speed, network transmission speed and smaller volume, in addition to smaller volume, electronic products also need to set different interface connectors to expand more functions.

[0003] Furthermore, the miniaturization of electronic products is largely due to the evolution of wafer process. When the circuit board and the corresponding connector are miniaturized, the terminal pitch of the terminal set is too close, and when high-frequency signals are transmitted, electromagnetic waves and cross-talk interference problems are also generated. Cross-talk interference has an absolute impact on transmission signal speed. High-frequency cable connectors include an insulating body, differential signal wire cores installed in the insulating body, and ground wire cores adjacent to the differential signal wire cores. The pitch between the two traces of the differential signal core must be consistent throughout the trace track. Otherwise, changes in pitch will cause magnetic field coupling imbalance, reducing the effectiveness of magnetic field elimination and increasing electromagnetic interference (EMI). The biggest impact of increased electromagnetic interference is that the transmission signal attenuation value of the differential signal wire core increases, which reduces the transmission signal speed of the differential signal wire core. Furthermore, if the differential signal wire core is covered with plastic, the insertion loss and return loss formed may also cause an increase in transmission signal attenuation value. The overall impedance matching of the electrical connector is not good due to the above problems, and those skilled in the art need to come up with solutions to solve this problem. UTILITY MODEL CONTENTS

[0004] Therefore, in view of the above problems and deficiencies, the purpose of the utility model is to provide a cable connector.

[0005] The utility model provides a cable connector, characterized by comprising an insulating body, wherein a receiving chamber inside the insulating body is provided with:

[0006] An electrical module comprising a circuit board, wherein a plurality of contacts and a plurality of solder pads are provided on two sides of at least one surface of the circuit board, the plurality of solder pads being used for soldering wire cores of a plurality of cables; and

[0007] A clamping shell is arranged on the outside of the electrical module, and the clamping shell includes a cover located at the top and a support plate located at the bottom that can be combined with each other. The cover and the support plate have an upper glue stop part and a lower glue stop part on the opposite inner sides respectively, which can prevent the glue covering and fixing the multiple cables from overflowing forward, and a filling area for the glue to be filled and cured is formed behind the upper glue stop part and the lower glue stop part. A hollow area is formed inside the insulating body corresponding to the welding position of the circuit board and the multiple cables in front of the upper glue stop part and the lower glue stop part.

[0008] The cable connector, wherein: the filling area is provided with a plurality of block-shaped or strip-shaped attachments for increasing the adhesive force of the colloid.

[0009] The cable connector, wherein: the plurality of cables include four cores, namely two signal cores located in the center and two ground cores located on two outer sides.

[0010] The cable connector, wherein: the insulating body and the cover are each provided with a pouring port and a channel for injecting the colloid by the in-mold injection method and are in a connected shape.

[0011] The cable connector, wherein: the cover and the support plate form a combined fixed structure through the card slots and card blocks on both sides.

[0012] The cable connector, wherein: the insulating body and the cover each form a combined fixing structure through at least one fixing groove and a buckle on the top side.

[0013] The cable connector, wherein: the insulating body and the supporting plate each form a combined fixed structure through at least one buckle groove and a buckle block on the bottom side.

[0014] The cable connector, wherein: the top side of the insulating body is provided with a receiving groove, the receiving groove accommodates a locking spring formed by a metal plate, and the top side of the locking spring has a lacing hole, and a pull strap for unlocking is installed in the lacing hole.

[0015] When the clamping shell is assembled into the insulating body, the upper and lower glue blocking portions of the cover and the supporting plate are abutted against the plurality of cables to form a sealing structure that can prevent overflow of the glue in the forward direction in the in-mold injection process, so that the cables in the filling area behind the upper and lower glue blocking portions are fixed by the cured glue. The fixed cables have the effect of improving the near-end crosstalk and far-end crosstalk problems. The circuit board and the plurality of cable welding positions in front of the upper and lower glue blocking portions are hollow and form an area in which the signal line core is in contact with air, so as to control the impedance matching of the electrical connector and reduce the transmission signal attenuation value caused by insertion loss and reflection loss. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the cable connector of the utility model.

[0017] Figure 2 It is another perspective view of the cable connector of the utility model.

[0018] Figure 3 It is an exploded view of the cable connector of the utility model.

[0019] Figure 4 It is another perspective view of the cable connector of the utility model.

[0020] Figure 5 It is a side sectional view of the cable connector of the utility model.

[0021] Figure 6 It is another side sectional view of the cable connector of the utility model.

[0022] Reference signs: 1 - insulating body; 10 - receiving chamber; 100 - hollow area; 11 - pouring port; 12 - fixing groove; 13 - buckling groove; 14 - accommodating groove; 15 - locking spring plate; 150 - lanyard hole; 16 - pull belt; 2 - electrical module; 21 - circuit board; 211 - contact; 212 - solder pad; 22 - cable; 221 - signal line core; 222 - ground line core; 3 - clamping shell; 30 - filling area; 31 - cover; 311 - upper glue blocking portion; 312 - channel; 313 - clamping groove; 314 - clamping buckle; 32 - supporting plate; 321 - lower glue blocking portion; 322 - clamping block; 323 - buckling block; 33 - attachment; 4 - glue. DETAILED DESCRIPTION

[0023] Please refer to Figures 1 to 6As shown, respectively, are the three-dimensional appearance view, another perspective three-dimensional appearance view, three-dimensional exploded view, another perspective three-dimensional exploded view, side view cross-sectional view and another side view cross-sectional view of the cable connector of the utility model, and from the drawings, it can be clearly seen that the utility model provides a cable connector, mainly comprising an insulating body 1 and a receiving chamber 10 inside the insulating body 1 is provided with an electrical module 2 and a clamping shell 3, and the detailed structure and connection relationship are as follows:

[0024] The electrical module 2 comprises a circuit board 21, and a plurality of contacts 211 and a plurality of solder pads 212 are arranged on both sides of at least one surface of the circuit board 21, and the plurality of solder pads 212 are used for welding the wire core (including signal wire core 221 and ground wire core 222) of a plurality of cables 22.

[0025] The clamping shell 3 is arranged outside the electrical module 2, and the clamping shell 3 comprises a cover 31 and a supporting plate 32 which can be combined with each other, the cover 31 and the supporting plate 32 have upper glue blocking parts 311 and lower glue blocking parts 321 which can block the overflow of the glue 4 in the forward direction on the opposite inner sides, and the upper glue blocking parts 311 and the lower glue blocking parts 321 form filling areas 30 for filling and solidifying the glue 4, and the circuit board 21 and the plurality of cables 22 are welded at the hollow areas 100 corresponding to the upper glue blocking parts 311 and the lower glue blocking parts 321 in front of the electrical module 2 inside the insulating body 1.

[0026] The insulating body 1 and the cover 31 are respectively provided with pouring ports 11 and channels 312 for injecting the glue 4 by insert molding method and in communication, and the injected glue 4 will flow into the filling area 30 and form solidification; the insulating body 1 and the cover 31 are combined and fixed by at least one fixing groove 12 on the top side and the buckle 314; the cover 31 and the supporting plate 32 are combined and fixed by the clamping groove 313 and the clamping block 322 on both sides; the insulating body 1 and the supporting plate 32 are combined and fixed by at least one buckling groove 13 and the buckling block 323 on the bottom side; the insulating body 1 is provided with a containing groove 14 on the top side, and the containing groove 14 accommodates a locking spring plate 15 composed of a metal plate 15, and the locking spring plate 15 has a belt hole 150 on the top side, and a pull belt 16 for unlocking is arranged in the belt hole 150, and the cable connector assembly is completed by the above-mentioned combined fixing structure.

[0027] The plurality of cables 22 includes four wire cores, two signal wire cores 221 located at the center and two ground wire cores 222 located at the two outer sides, and the preferred embodiment of the signal wire core 221 is a differential signal wire core; Furthermore, the ground wire core 222 is welded to the solder pad 212 of the circuit board 21, which can guide the electromagnetic wave generated by the high-speed transmission of the signal wire core 221 to the grounding of the inner layer of the circuit board 21 (not shown in the figure) or other components to dissipate, thereby greatly reducing the electromagnetic interference (EMI) effect.

[0028] The filling area 30 is provided with a plurality of adhesion bodies 33 in block or strip shape for increasing the adhesion of the glue 4, but the shape of the adhesion body 33 is not limited in the utility model, and can be any geometric shape or irregular shape, which can be used as an implementation structure.

[0029] The main feature of the utility model is that when the clamping shell 3 of the cable connector penetrates into the insulating body 1 for assembly, the upper and lower glue blocking parts 311 and 321 provided by the cover 31 and the supporting plate 32 abut against the outside of the plurality of cables 22 to form a tight structure that can block the overflow of the glue 4 in the forward direction of the in-mold injection method, so that the cables 22 in the filling area 30 behind the upper and lower glue blocking parts 311 and 321 are fixed by the cured glue 4. The fixed cable 22 has the effect of improving the near-end crosstalk (NEXT) and far-end crosstalk (FEXT) problems, and the soldering place of the circuit board 21 and the plurality of cables 22 in front of the upper and lower glue blocking parts 311 and 321 forms a hollow area and retains the area where the signal wire core 221 contacts the air, thereby controlling the impedance matching of the electrical connector and reducing the transmission signal attenuation value caused by insertion loss (Insertion Loss) and return loss (Return Loss).

[0030] The above is only a preferred embodiment of the utility model, and is not limited to the patent range of the utility model, so that any simple modification and equivalent structural change based on the content of the utility model specification and drawings is also included in the patent range of the utility model, and it is hereby declared.

Claims

1. A cable connector, characterized by, An insulating body, a receiving chamber inside the insulating body is provided with: An electrical module, comprising a circuit board, a plurality of contacts and a plurality of solder pads are provided on both sides of at least one surface of the circuit board, the plurality of solder pads are for soldering the cores of a plurality of cables; and A clamping housing is provided outside the electrical module, the clamping housing comprises an upper cover and a lower plate that can be combined with each other, the upper cover and the lower plate have upper and lower glue blocking portions on the opposite inner sides, respectively, which can block the overflow of the glue that covers and fixes the plurality of cables to the front, and the rear of the upper and lower glue blocking portions forms a filling area for the glue to fill and solidify, and hollow areas are formed on the circuit board corresponding to the front of the upper and lower glue blocking portions and the soldering position of the plurality of cables inside the insulating body.

2. The cable connector of claim 1, wherein: The filling area is provided with a plurality of adhesion bodies in block or strip shape to increase the adhesion of the glue.

3. The cable connector of claim 1, wherein: The plurality of cables comprises four cores, two signal cores located at the central position and two ground cores located at the two outer sides.

4. The cable connector of claim 1, wherein: The insulating body and the cover are each provided with a pouring port and a channel in a communication state for the glue injection of the in-mold injection method on both sides.

5. The cable connector of claim 1, wherein: The cover and the lower plate form a combined fixing structure through the clamping grooves and clamping blocks on both sides.

6. The cable connector of claim 1, wherein: The insulating body and the cover form a combined fixing structure through at least one fixing groove and a buckle on the top side.

7. The cable connector of claim 1, wherein: The insulating body and the lower plate form a combined fixing structure through at least one buckle groove and a buckle block on the bottom side.

8. The cable connector of claim 1, wherein: The top side of the insulating body is provided with a containing groove, the containing groove accommodates a locking spring plate composed of a metal plate, and the top side of the locking spring plate has a belt hole, and a pull belt for unlocking is installed in the belt hole.

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