Cable connector

Abstract

The utility model provides a cable connector. The cable connector comprises an insulating shell, a connecting piece and a connecting piece, wherein an accommodating chamber is formed in the insulating shell; the electrical module is arranged in the accommodating chamber and comprises a tongue plate, a plurality of butt joint parts, a plurality of welding parts and wire cores of a plurality of cables welded on the plurality of welding parts; the gasket is arranged outside the electrical module, wraps and fixes the tongue plate and the plurality of cables, fills the gaps between the adjacent cables, and can prevent colloid generated during in-mold injection processing outside the electrical module from flowing into the welding parts of the welding parts of the tongue plate and the cables; the gasket wraps and fixes the lingual plate and the plurality of cables, so that the glue can be prevented from flowing into the welding part of the lingual plate and the welding part of the cables in the process of injecting the glue out of the mold, and the purpose of reducing the insertion loss and the reflection loss during high-frequency operation can be achieved.

Description

Technical Field

[0001] This utility model relates to a cable connector, and more particularly to a connector in which, after the electrical module is installed in an insulating shell, a glue is filled by in-mold injection at the rear end of the tongue plate and the multiple cables. The filled glue can fix the tongue plate and the multiple cables to form a stable structure and a waterproof structure. By covering and fixing the tongue plate and the multiple cables with a gasket, the glue can be prevented from flowing into the welding part of the tongue plate and the welding point of the cables during the in-mold injection process, so that the welding part of the tongue plate and the welding point of the cables are kept in contact with the air. In this way, the insertion loss and reflection loss during high-frequency operation can be reduced. Background Technology

[0002] The electronics industry is growing and maturing rapidly, and many different 3C electronic products are being developed and manufactured according to different needs. In particular, the speed at which computers, laptops, tablets and smartphones are overlapping is beyond imagination. The direction of updates is nothing more than processor processing speed, network transmission speed and lighter, thinner, shorter and smaller size. In addition to becoming smaller, electronic products also need to be equipped with different interface connectors to accommodate the expansion of more functions.

[0003] Furthermore, the miniaturization of electronic products is largely due to advancements in wafer fabrication processes. As circuit boards and corresponding connectors have become smaller, the spacing between terminal blocks has become too close. This, combined with the electromagnetic interference (EMI) generated during high-frequency signal transmission, creates crosstalk. Crosstalk significantly impacts signal transmission speed. High-frequency cable connectors consist of an insulating body, differential signal conductors housed within the insulating body, and a ground conductor adjacent to the differential signal conductors. The spacing between the two traces of the differential signal conductors must remain consistent throughout the entire trace path. Otherwise, variations in spacing will cause magnetic field coupling imbalances, reducing the effectiveness of magnetic field cancellation and increasing electromagnetic interference (EMI). The most significant impact of increased EMI is the increased attenuation of the differential signal conductors, thus reducing the transmission speed of the differential signal conductors. Furthermore, if the solder joint between the differential signal core and the circuit board is covered with plastic, the resulting insertion loss and return loss may also increase the attenuation of the transmitted signal. The poor overall impedance matching of the electrical connector caused by the aforementioned problems needs to be addressed by those in this industry. Utility Model Content

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

[0005] This utility model provides a cable connector, characterized in that it includes:

[0006] An insulating outer shell, with a storage chamber formed inside;

[0007] An electrical module, installed in the storage compartment, includes a tongue plate, on both sides of at least one surface of the tongue plate, a plurality of mating portions and a plurality of soldering portions, the plurality of soldering portions being for soldering the cores of a plurality of cables; and

[0008] A washer is installed on the outside of the electrical module. The washer covers and fixes the tongue plate and the plurality of cables and fills the gap between adjacent cables. It can also prevent the colloid generated during the in-mold injection process of the electrical module from flowing into the plurality of welded parts of the tongue plate and the welded joints of the plurality of cables.

[0009] The cable connector wherein the washer is made of elastic rubber or silicone and is constructed as a single-piece frame.

[0010] The cable connector wherein: the washer has an internal cavity that covers and fixes the tongue plate and the plurality of cables, and the cavity is provided with a plurality of protruding ribs to fill the gaps between adjacent cables.

[0011] The cable connector wherein: the washer has a fixing part that engages with the storage chamber near the outer edge of the tongue plate, and a blocking mechanism that can block the colloid is provided on the side away from the tongue plate. The blocking mechanism includes an upper protrusion and a lower protrusion that are opposite to each other and abut against the outside of the plurality of cables. A positioning space is formed between the upper protrusion and the lower protrusion for the positioning parts of the tongue plate away from the mating part to be locked and positioned.

[0012] The cable connector wherein: the washer has a locking part on both sides of the receiving cavity, and the two locking parts are for locking and fixing the tongue plate to the recessed slots adjacent to the positioning part.

[0013] The cable connector, wherein: both sides of the insulating shell are provided with injection ports for injecting colloid from the mold and communicating with the receiving chamber; the front end of the receiving chamber is connected to form a mating opening for the tongue plate to extend outward from the side where the plurality of mating portions are located; the top side of the insulating shell is open and can be locked and positioned by a cover plate; the cover plate is turned downward on the side away from the tongue plate to form a supporting portion that contacts the upper edge of the washer.

[0014] The cable connector, wherein: the insulating housing includes a first housing having the storage chamber inside, and a second housing connected to the first housing, and the joint between the first housing and the second housing is formed into an integral structure by ultrasonic welding.

[0015] The cable connector wherein: the rear ends of the two side plates of the first housing are recessed towards the electrical module to form a first welding portion, and the two side plates of the second housing are formed with a second welding portion corresponding to the first welding portion, and the joint between the first welding portion and the second welding portion is provided with a positioning structure of a buckle, a buckle groove, a buckle strip and a positioning groove.

[0016] The cable connector wherein: the tongue plate is formed of a circuit board and the plurality of mating portions and the plurality of soldering portions are formed of copper foil layers disposed in the circuit board; or, the tongue plate is formed of an insulating base and the plurality of mating portions and the plurality of soldering portions are formed of a plurality of conductive terminals passing through the insulating base.

[0017] The cable connector, wherein: the plurality of cables includes a plurality of front-row cables of longer length and a plurality of rear-row cables of shorter length, and the front-row cables and the rear-row cables are arranged in an alternating manner, and each of the front-row cables and the rear-row cables includes four wire cores, namely two signal wire cores located in the center and two ground wire cores located on the outer sides.

[0018] As described above, after the electrical module is installed in the insulating housing, it is necessary to fill the end of the tongue plate and the multiple cables with colloid through in-mold injection. The filled colloid can fix the tongue plate and the multiple cables to form a stable structure and a waterproof structure. By covering and fixing the tongue plate and the multiple cables with gaskets, it can prevent the colloid from flowing into the welding part of the tongue plate and the welding part of the cables during the in-mold injection process, so that the welding part of the tongue plate and the welding part of the cables are kept in contact with the air. In this way, the insertion loss and reflection loss during high-frequency operation can be reduced. Attached Figure Description

[0019] Figure 1 This is a perspective view of the cable connector of this utility model.

[0020] Figure 2 This is a three-dimensional view of the cable connector of this utility model from another perspective.

[0021] Figure 3 This is an exploded perspective view of the cable connector of this utility model.

[0022] Figure 4 This is an exploded perspective view of the cable connector of this utility model.

[0023] Figure 5 This is a side sectional view of the cable connector of this utility model.

[0024] Figure 6 This is a perspective view of another embodiment of the cable connector of this utility model.

[0025] Figure 7This is a partial exploded perspective view of another embodiment of the cable connector of this utility model.

[0026] Figure 8 This is a partial exploded perspective view of another embodiment of the cable connector of this utility model.

[0027] Figure 9 This is an exploded perspective view of another embodiment of the cable connector of this utility model.

[0028] Figure 10 This is an exploded perspective view of another embodiment of the cable connector of this utility model.

[0029] Figure 11 This is a side cross-sectional view of another embodiment of the cable connector of this utility model.

[0030] Explanation of reference numerals in the attached drawings: 1-Insulating outer shell; 10-Receiving chamber; 101-Injection port; 102-Mating opening; 11-Cover plate; 111-Supporting part; 12-First shell; 121-First welding part; 122-Snap; 123-Positioning groove; 13-Second shell; 131-Second welding part; 132-Snap groove; 133-Snap strip; 2-Electrical module; 21-Tongue plate; 211-Mating part; 212-Welding part; 213-Positioning part; 214-Snap groove; 22-Cable; 221-Front row cable; 222-Rear row cable; 223-Signal wire core; 224-Grounding wire core; 3-Washer; 30-Accommodating cavity; 301-Protruding rib; 302-Snapping part; 31-Fixing part; 32-Barrier mechanism; 321-Upper protruding plate; 322-Lower protruding plate; 323-Positioning space. Detailed Implementation

[0031] Please see Figures 1 to 5 The figures shown are a perspective view, a perspective view from another angle, an exploded perspective view, an exploded perspective view from another angle, and a side sectional view of the cable connector of this utility model. As can be clearly seen from the figures, the first embodiment of the cable connector of this utility model mainly includes an insulating shell 1, an electrical module 2, and a gasket 3. The detailed structure and connection relationships are as follows:

[0032] The insulating outer casing 1 has a storage chamber 10 inside.

[0033] The electrical module 2 is installed in the storage compartment 10. The electrical module 2 includes a tongue plate 21. At least one surface of the tongue plate 21 has a plurality of mating parts 211 and a plurality of welding parts 212 on each side. The plurality of welding parts 212 are for welding the cores of the plurality of cables 22.

[0034] The washer 3 is installed on the outside of the electrical module 2. The washer 3 covers and fixes the tongue plate 21 and the plurality of cables 22 and fills the gap between adjacent cables 22. It can also prevent the colloid generated during the in-mold injection process outside the electrical module 2 from flowing into the plurality of welding parts 212 of the tongue plate 21 and the welding joint of the plurality of cables 22.

[0035] The insulating outer shell 1 has injection ports 101 on both sides for injecting colloid (not shown in the figure) injected from the mold and communicating with the receiving chamber 10. The front end of the receiving chamber 10 is connected to a docking opening 102 for the tongue plate 21 with the plurality of docking parts 211 to extend outward. The top side of the insulating outer shell 1 is open and can be locked and positioned by a cover plate 11. The cover plate 11 is turned downward on the side away from the tongue plate 21 to form a supporting part 111 that contacts the upper edge of the washer 3.

[0036] The tongue plate 21 described above is made of a circuit board (PCB), and the plurality of mating parts 211 and the plurality of soldering parts 212 are made of copper foil layers disposed in the circuit board; or, the tongue plate 21 is made of an insulating base (not shown in the figure), and the plurality of mating parts 211 and the plurality of soldering parts 212 are made of a plurality of conductive terminals (not shown in the figure) passing through the insulating base. This utility model does not impose any restrictions on the structure of the tongue plate 21.

[0037] The aforementioned plurality of cables 22 includes a plurality of longer front-row cables 221 and a plurality of shorter rear-row cables 222, which are arranged in an alternating pattern. Each of the front-row cables 221 and the rear-row cables 222 includes four wire cores: two signal wire cores 223 located in the center and two ground wire cores 224 located on the outer sides. In a preferred embodiment, the signal wire cores 223 are differential signal wire cores. Furthermore, the ground wire cores 224 are soldered to the soldering portion 212 of the tongue plate 21, which can guide the electromagnetic waves generated by the signal wire cores 223 during high-speed transmission of electronic signals to the grounding area of ​​the inner layer of the tongue plate 21 (not shown in the figure) or other components for elimination, thereby significantly reducing the electromagnetic interference (EMI) effect.

[0038] The aforementioned washer 3 is made of elastic rubber or silicone and is constructed as a single-piece frame. The washer 3 has an internal cavity 30 that covers and secures the tongue plate 21 and the plurality of cables 22. The cavity 30 contains a plurality of protruding ribs 301 that fill the gaps between adjacent cables 22. The washer 3 has a fixing portion 31 near the outer edge of the tongue plate 21 that engages with the storage chamber 10. A blocking mechanism 32 protrudes from the side away from the tongue plate 21 to block the adhesive. 2 includes an upper convex plate 321 and a lower convex plate 322 that are opposite to each other and abut against the outside of the plurality of cables 22. A positioning space 323 is formed between the upper convex plate 321 and the lower convex plate 322 for the positioning portions 213 on both sides of the tongue plate 21 that are away from the docking portion 211 to be locked and positioned. The washer 3 has a locking portion 302 on both sides of the receiving cavity 30. The two locking portions 302 are for the tongue plate 21 to be locked and fixed by the recessed slots 214 on both sides of the tongue plate 21 near the positioning portion 213.

[0039] like Figures 1 to 5In actual assembly, the disclosed cable connector is first assembled by soldering the signal cores 223 and grounding cores 224 of the plurality of cables 22 to the plurality of soldering portions 212 on the two surfaces of the tongue plate 21, which are staggered front to back. Then, the plurality of cables 22 extending backwards on the two surfaces of the tongue plate 21 are bent towards the center and fitted together. Next, a washer 3 is placed on the tongue plate 21 and the exterior of the plurality of cables 22 near the bend, and the locking portion 302 inside the washer 3 engages with the locking groove 214 of the tongue plate 21. The positioning portion 213 of the tongue plate 21 is then inserted into the positioning space 323 of the washer 3. Finally, the supporting portion 111 of the cover plate 11 is brought into contact downwards with the upper edge of the washer 3, thus assembling the combined structure of the tongue plate 21, the plurality of cables 22, and the cover plate 11. The tongue plate 21 is moved into the receiving chamber 10 of the insulating shell 1 by a moving fixture, and the mating part 211 of the tongue plate 21 protrudes from the mating opening 102 of the insulating shell 1. At the same time, it is locked in place by the locking blocks (not shown) on both sides of the top of the cover plate 11 and the corresponding hollowed-out buckle holes (not shown) of the insulating shell 1 (the assembly of the cover plate 11 and the insulating shell 1 may also be fixed by ultrasonic welding, so no restriction is placed on the fixing method). The injection ports 101 on both sides of the insulating shell 1 can be used for injection and filling of the in-mold injected colloid. After the filled colloid cures, it can fix the tongue plate 21 and the multiple cables 22 to form a stable structure and a waterproof structure. The fixed cables 22 have the effect of improving near-end crosstalk. The gasket 3, by covering and fixing the tongue plate 21 and the multiple cables 22, prevents the colloid from flowing into the welding part 212 of the tongue plate 21 and the welding point of the cables 22 through capillary action during in-mold injection. This keeps the welding part 212 of the tongue plate 21 and the welding point of the cables 22 in contact with air, thereby controlling the impedance matching of the cable connector and reducing the signal attenuation caused by insertion loss and return loss.

[0040] Please see Figures 6 to 11 The figures shown are, respectively, a perspective view, a partial exploded perspective view, a partial exploded perspective view from another angle, an exploded perspective view, an exploded perspective view from another angle, and a side sectional view of another embodiment of the cable connector of this utility model. The second embodiment of the cable connector is similar to... Figures 1 to 5 The only difference in the first embodiment is the structure of the insulating shell. The electrical module 2 and the gasket 3 are identical and will not be described again. The structure of the insulating shell 1 in the second embodiment is as follows:

[0041] The insulating housing 1 includes a first housing 12 having the storage chamber 10 inside, and a second housing 13 connected to the first housing 12. The joint between the first housing 12 and the second housing 13 is formed as an integral structure by ultrasonic welding. The rear ends of the two side plates of the first housing 12 are recessed towards the electrical module 2 to form a first welding portion 121, and the two side plates of the second housing 13 are formed with a second welding portion 131 corresponding to the first welding portion 121. The joint between the first welding portion 121 and the second welding portion 131 is provided with a positioning structure consisting of a buckle 122, a buckle groove 132, a locking strip 133, and a positioning groove 123.

[0042] like Figures 6 to 11 In actual assembly, the disclosed cable connector is first fitted with a washer 3, which is placed on the outside of the tongue plate 21 of the electrical module 2 and the plurality of cables 22 near the bend. The locking part 302 inside the washer 3 engages with the locking groove 214 of the tongue plate 21, and the positioning part 213 of the tongue plate 21 is inserted into the positioning space 323 of the washer 3. Then, the electrical module 2 is positioned in the storage chamber 10 of the first housing 12 by pushing and engaging, and the front end of the tongue plate 21 has a plurality of mating parts 211 exposed from the first housing 12. Then, the first welding part 121 of the first housing 12 is aligned with the second welding part 131 of the second housing 13, and the latch 122 and positioning groove 123 of the first welding part 121 are aligned with the second welding part 131. The snap groove 132 and the locking strip 133 of 31 form a snap-fit ​​positioning. After the pressure jig holds the top surface of the first housing 12 downward and applies pressure to the second housing 13, a supersonic oscillation wave can be applied to the joint between the first welded part 121 of the first housing 12 and the second welded part 131 of the second housing 13. Ultrasonic frequency friction is formed at the joint between the first welded part 121 and the second welded part 131, thereby generating high temperature. This allows the joint between the first housing 12 and the second housing 13 to be welded into an integral structure to complete the assembly. It also allows the first housing 12 and the second housing 13 to be firmly pressed against the surface of the gasket 3 and the cable 22, and allows the core of the cable 22 to be more firmly in contact with the welding part 212 of the tongue plate 21. Meanwhile, the top and bottom sides of the gasket 3, made of rubber or silicone material, are also fused with the first housing 12 and the second housing 13 through ultrasonic oscillation waves to form an integral and stable structure. This prevents the gasket 3 from being pushed back by stress when the cable connector and mating connector (such as a board connector) are plugged in, thus preventing problems such as poor contact or electrical open circuits caused by pin ejection or separation of the wire core from the solder joint 212. Furthermore, the ultrasonic welding process used on the first housing 12 and the second housing 13 prevents the gasket 3 from undergoing torsional deformation inside the first housing 12 during assembly, which would affect the effect of preventing the adhesive from flowing into the solder joint 212 of the tongue plate 21 and the weld joint of the cable 22 during in-mold injection.

[0043] The main feature of this utility model is that after the electrical module 2 is installed on the insulating shell 1, it is necessary to fill the tongue plate 21 and the multiple cables 22 with colloid by in-mold injection. The filled colloid can fix the tongue plate 21 and the multiple cables 22 to form a stable structure and a waterproof structure. By covering and fixing the tongue plate 21 and the multiple cables 22 with gasket 3, it can prevent the colloid from flowing into the welding part 212 of the tongue plate 21 and the welding part of the cable 22 during the in-mold injection process. This keeps the welding part 212 of the tongue plate 21 and the welding part of the cable 22 in contact with the air, so as to reduce the insertion loss and reflection loss during high-frequency operation.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Therefore, any simple modifications and equivalent structural changes made based on the description and drawings of the present utility model should also be included in the patent scope of the present utility model.

Claims

1. A cable connector, characterized by, include: An insulating outer shell, with a storage chamber formed inside; An electrical module is installed in the storage compartment. The electrical module includes a tongue plate, and on both sides of at least one surface of the tongue plate are a plurality of mating parts and a plurality of soldering parts, the plurality of soldering parts being used for soldering the cores of a plurality of cables; and A washer is installed on the outside of the electrical module. The washer covers and fixes the tongue plate and the plurality of cables and fills the gap between adjacent cables. It can also prevent the colloid generated during the in-mold injection process of the electrical module from flowing into the plurality of welded parts of the tongue plate and the welded joints of the plurality of cables.

2. The cable connector of claim 1, wherein: The washer is made of elastic rubber or silicone and consists of a one-piece frame.

3. The cable connector of claim 1, wherein: The washer has an internal cavity that covers and fixes the tongue plate and the plurality of cables, and the cavity is provided with a plurality of protruding ribs to fill the gaps between adjacent cables.

4. The cable connector of claim 1, wherein: The washer has a fixing part that engages with the storage chamber near the outer edge of the tongue plate, and a blocking mechanism that can block the colloid is provided on the side away from the tongue plate. The blocking mechanism includes an upper protrusion and a lower protrusion that are opposite to each other and abut against the outside of the plurality of cables. A positioning space is formed between the upper protrusion and the lower protrusion for the positioning part of the tongue plate away from the docking part to be locked and positioned.

5. The cable connector of claim 4, wherein: The washer has a locking part on both sides of the receiving cavity. The two locking parts are used to engage and fix the tongue plate in the recessed slots near the positioning part.

6. The cable connector of claim 1, wherein: Both sides of the insulating shell are provided with injection ports for injecting colloid from the mold and communicating with the receiving chamber. The front end of the receiving chamber is connected to form a docking opening for the tongue plate with the plurality of docking parts to extend outward. The top side of the insulating shell is open and can be locked and positioned by a cover plate. The cover plate is turned downward on the side away from the tongue plate to form a supporting part that contacts the upper edge of the washer.

7. The cable connector of claim 1, wherein: The insulating housing includes a first housing having the storage chamber inside, and a second housing connected to the first housing, wherein the joint between the first housing and the second housing is formed into an integral structure by ultrasonic welding.

8. The cable connector of claim 7, wherein: The first housing has a first welded portion formed by recessing the rear ends of the two side plates toward the electrical module, and the second housing has a second welded portion formed on the two side plates corresponding to the first welded portion. The joint between the first welded portion and the second welded portion is provided with a positioning structure consisting of a buckle, a buckle groove, a buckle strip, and a positioning groove.

9. The cable connector of claim 1, wherein: The tongue plate is made of a circuit board and the plurality of mating parts and the plurality of soldering parts are made of copper foil layers disposed in the circuit board; or, the tongue plate is made of an insulating base and the plurality of mating parts and the plurality of soldering parts are made of a plurality of conductive terminals passing through the insulating base.

10. The cable connector of claim 1, wherein: The plurality of cables includes a plurality of longer front-row cables and a plurality of shorter rear-row cables, and the front-row cables and the rear-row cables are arranged in an alternating manner. Each of the front-row cables and the rear-row cables includes four wire cores, namely two signal wire cores located in the center and two ground wire cores located on the outer sides.

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