Waterproof USB type-c socket connector

Abstract

Disclosed in the present application is a waterproof USB Type-C socket connector, comprising: an insulating body portion, which is provided with a base portion, a tongue root portion, and a tongue tip portion; several terminal members, each of which comprises a docking section, a fixed section, and a contact section; a waterproof slot, which vertically runs through the base portion; a filling recess, which is located at the front end of the waterproof slot in the plug-in direction of a docking connector and is formed by means of recessing the upper surface of the base portion downwards, wherein the waterproof slot is in communication with the filling recess in the docking direction of the docking connector, and each of the fixed sections comprises a sealing section exposed in the waterproof slot; a shielding inner shell, which comprises a rear section portion, wherein the rear section portion is annularly arranged around the outer periphery of the end of the base portion close to the tongue root portion, the waterproof slot is surrounded by the rear section portion, the filling recess faces upwards and at least part of same is not enclosed by the rear section portion, thereby forming a filling opening, and the rear section portion is arranged around the outer periphery of the tongue root portion; and a waterproof adhesive body, which is filled into the waterproof slot and the filling recess. The waterproof USB Type-C socket connector can achieve a better waterproof effect and is easy to produce and manufacture.

Description

Waterproof USB Type C socket connector

[0001] Cross-reference to related applications

[0002] The present application claims priority to Chinese Patent Application No. 202410760991.7, filed on June 13, 2024, entitled “Waterproof USB Type C socket connector”, and Chinese Patent Application No. 202410997809.X, filed on July 24, 2024, entitled “Waterproof USB Type C socket connector”, the relevant contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of connectors, in particular to a waterproof USB Type C socket connector. BACKGROUND

[0004] USB 3.1 is the latest USB specification, which is initiated by large companies such as Intel. The data transmission speed can be increased to 10 Gbps. Compared with the traditional USB 2.0 technology, the new USB technology uses a more efficient data coding system and provides more than one times the effective data throughput. USB 3.1 includes three types: Type-A, Type-B and Type-C. In December 2013, the USB 3.0 promotion team has announced the rendering of the next generation USB Type C connector, and has been ready for mass production since August 2014. The highlight of the new connector is the more slim design, faster transmission speed (up to 10 Gbps) and more powerful power transmission (up to 100 W). The biggest advantage is to support front and back insertion, which solves the problem of “USB always can't be inserted”, and the front and back can be inserted randomly.

[0005] The related prior art can refer to Chinese Utility Model Patent CN218632595U, which discloses a USB Type C waterproof connector, which mainly realizes the gap waterproofing between the metal front shell and the connector body and the conductive terminal by filling the waterproof colloid in the slot of the insulator. However, since the waterproof colloid is clamped by the surrounding sleeve part, the waterproof colloid is closed by the metal front shell, and the specification introduces that: the waterproof colloid is solidified from liquid silicone, and because the silicone has large fluidity, the glue will flow into the gaps between the insulator cracks, the insulator and the conductive terminal, the insulator and the middle partition, etc. After complete filling, the waterproof effect of the connector body can be achieved. However, in the actual production process, the waterproof colloid is not easy to be implanted.

[0006] On the other hand, the related prior art achieves the waterproof between the connector and the electronic device shell by the elastic gasket sleeved on the sleeve part of the metal front shell. The setting position and setting mode of the elastic gasket are not conducive to the thinning and miniaturization of the connector as a whole. In addition, the filling position, filling range and filling mode of the waterproof glue still have the problem of not being tightly waterproofed. The reason is that the metal front shell is assembled on the insulating body, the assembly gap is relatively large, and the inner surface of the metal front shell is a smooth surface. Even if the waterproof glue is filled in the groove, water vapor may still penetrate into

[0007] Therefore, it is necessary to design a new USB Type C connector to solve the above technical problems. SUMMARY

[0008] The purpose of the present application is to provide a waterproof USB Type C socket connector which can achieve better waterproof effect and is easy to produce and manufacture.

[0009] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0010] A waterproof USB Type C socket connector comprises:

[0011] An insulating body is formed with a base part, a tongue root part and a tongue end part connected in sequence in the mating direction;

[0012] A plurality of terminal pieces, each comprising a mating segment, a fixed segment and a contact segment connected in sequence in the mating direction, the mating segment being exposed to the base part;

[0013] The fixed segment is embedded and fixed in the base part and the tongue root part;

[0014] The contact segment is arranged in two rows on the upper surface and the lower surface of the tongue end part, and each contact segment comprises a contact part exposed to the outside of the upper surface or the lower surface of the tongue end part;

[0015] A waterproof groove is formed in the base part in the up-down direction;

[0016] An implantation groove is located at the front end of the waterproof groove in the insertion direction of the mating connector, and is recessed downward from the upper surface of the base part;

[0017] The waterproof groove and the implantation groove communicate in the mating direction of the mating connector;

[0018] Each fixed segment comprises a sealing segment exposed to the waterproof groove;

[0019] The shield inner shell comprises a rear section which annularly surrounds an outer periphery of the base near one end of the base, and the waterproof groove is surrounded by the rear section, and the implantation groove is at least partially open upwardly to form an implantation opening;

[0020] The waterproof gel body comprises a first part filled into the waterproof groove and a second part filled into the implantation groove.

[0021] Further, the rear section covers and extends beyond the waterproof groove in the insertion direction of the docking connector, and the waterproof groove is not exposed from the rear section in the up-down direction.

[0022] Further, the inner bottom surface of the implantation groove forms an inclined surface so that the depth of the implantation groove in the up-down direction gradually expands in the extraction direction of the docking connector.

[0023] Further, the first part of the waterproof gel body is filled and attached to the entire inner annular surface of the rear section.

[0024] Further, the shield inner shell further comprises a front section and a connecting section connecting the rear section and the front section, the front section surrounds the outer periphery of the base, and the connecting section is attached to the front end surface of the base.

[0025] The waterproof gel body fills the gap between the rear section and the base; and / or

[0026] The waterproof gel body fills the gap between the connecting section and the front end surface of the base; and / or

[0027] The waterproof gel body fills the gap between the front section and the base.

[0028] Further, the shield inner shell is formed by drawing and stretching a metal plate or a metal tube, and the rear section is seamless in the circumferential direction.

[0029] Further, the shield inner shell further comprises a front section and a connecting section connecting the rear section and the front section, the front section surrounds the outer periphery of the base, and the connecting section is attached to the front end surface of the base.

[0030] The front section is formed with a reserved seam at both side positions of the base to divide the front section into an upper cover and a lower cover.

[0031] The upper cover and the lower cover are respectively and independently connected to the connecting section.

[0032] Further, at least one partition member is included, the partition member including a main body embedded in the insulating body, a reinforcing lug portion extending laterally from one end of the main body at the base portion, and a locking portion extending laterally from one end of the main body at the tongue end portion and exposed to both side surfaces of the tongue end portion.

[0033] The main body is embedded at least in portions of the tongue end portion and the tongue root portion between the two rows of contact segments in the up-and-down direction.

[0034] Both sides of the base portion extend laterally to form fixing lug portions, and the reinforcing lug portion is fixed to the fixing lug portions.

[0035] A locking hole is formed through the fixing lug portions and the reinforcing lug portion in the up-and-down direction.

[0036] Further, the shield inner housing further includes a front segment portion surrounding the outer periphery of the tongue root portion and a connecting portion connecting the rear segment portion and the front segment portion.

[0037] At least one partition member is included, the partition member including a main body embedded in the insulating body and a locking portion extending laterally from one end of the main body at the tongue end portion and exposed to both side surfaces of the tongue end portion.

[0038] The main body is embedded at least in portions of the tongue end portion and the tongue root portion between the two rows of contact segments in the up-and-down direction.

[0039] An extension piece is formed by bending and extending the main body, the extension piece being exposed from the upper surface or the lower surface of the tongue root portion and being fitted to the inner surface of the front segment portion and being fixed by welding.

[0040] Further, a rough surface is formed on the inner wall surface of the rear segment portion of the shield inner housing, the rough surface surrounding the entire circumference of the inner wall surface of the rear segment portion, and the rough surface directly contacting the outer peripheral surface of the waterproof adhesive.

[0041] Further, the implantation groove does not pass through the base portion in the up-and-down direction.

[0042] Further, an elastic gasket is further fitted to the outer peripheral surface of the rear segment portion.

[0043] Further, the shield inner housing further includes a front segment portion surrounding the outer periphery of the tongue root portion and a connecting portion connecting the rear segment portion and the front segment portion.

[0044] A recessed portion is formed by recessing inwardly from the outer surface of the rear segment portion;

[0045] A waterproof ring is annularly disposed around the outer periphery of the rear segment portion and is at least partially annularly disposed in the recessed portion of the rear segment portion, and the waterproof ring protrudes outwardly from the outer surface of the rear segment portion.

[0046] Further, the rear end edge of the rear section is outwardly turned to form a stop portion, which is located rearward of the waterproof ring and stops the rearward movement or deformation of the waterproof ring.

[0047] Further, the base defines a waterproof section at one end adjacent to the tongue root section, the rear section surrounds the waterproof section, and a gap space is formed between at least part of the outer circumferential surface of the waterproof section and the inner surface of the rear section, and the waterproof gel is implanted in the gap space.

[0048] Further, the gap space surrounds the waterproof section, and the waterproof gel surrounds the waterproof section.

[0049] Further, the gap space is located at the front end of the groove section.

[0050] Further, the terminal pieces include an upper row of terminal pieces and a lower row of terminal pieces.

[0051] The insulating body includes an upper insulating piece integrally fixed with the upper row of terminal pieces, a lower insulating piece integrally fixed with the lower row of terminal pieces, and an outer insulating piece integrally fixed with the upper insulating piece and the lower insulating piece after being stacked.

[0052] The upper insulating piece and the lower insulating piece form a clearance portion at a position adjacent to the waterproof groove and located at the front end in the pulling-out direction of the mating connector, the clearance portion is in communication with the waterproof groove, and the waterproof gel is implanted in the clearance portion.

[0053] Further, the inner surface of the groove section of the rear section protrudes into the waterproof groove.

[0054] Further, the outer circumferential surface of the base defines a right-angle stop corner portion at a position adjacent to the tongue root section, and the inner surface of the connecting section forms a line contact with the stop corner portion.

[0055] Further, the outer circumferential surface of the tongue root section protrudes to form a stop portion at a position adjacent to the tongue end section, the stop portion stops at the front end edge of the front section, and the shield inner shell is assembled on the periphery of the insulating body by passing the stop portion in the insertion direction of the mating connector.

[0056] Further, the base defines a stop portion, and the stop portion of the shield inner shell stops at the front end surface of the stop portion.

[0057] Further, the base defines a stop portion, and the stop portion of the shield inner shell stops at the front end surface of the stop portion.

[0058] The terminal pieces include an upper row of terminal pieces and a lower row of terminal pieces.

[0059] A partition plate is embedded in the insulating body and located between the upper row of terminal members and the lower row of terminal members;

[0060] The rear end of the base extends in the width direction to form an ear portion, the partition plate extends to form a lapping portion exposed to the front end surface of the ear portion, and the lapping portion is tightly attached to the rear surface of the stop portion at both sides of the rear section and is fixed by welding.

[0061] Further, the stop portion surrounds the rear section.

[0062] Compared with the prior art, the waterproof USB Type C socket connector can achieve better waterproof effect and facilitate miniaturization design. BRIEF DESCRIPTION OF DRAWINGS

[0063] Fig. 1 is a perspective view of a waterproof USB Type C socket connector according to a first embodiment of the present application.

[0064] Fig. 2 is an exploded view of the waterproof USB Type C socket connector according to the first embodiment of the present application, and further, the inner wall surface of the rear section of the shielding inner shell is formed with a rough surface, and the outer peripheral surface of the waterproof adhesive is also formed with a rough surface.

[0065] Fig. 3 is a top view of the waterproof USB Type C socket connector shown in Fig. 1.

[0066] Fig. 4 is a sectional view taken along line A-A in Fig. 3.

[0067] Fig. 5 is a partially exploded view of the waterproof USB Type C socket connector according to the first embodiment of the present application.

[0068] Fig. 6 is a partially exploded view of the waterproof USB Type C socket connector according to the first embodiment of the present application.

[0069] Fig. 7 is a top view of the waterproof USB Type C socket connector shown in Fig. 6.

[0070] Fig. 8 is a partially exploded view of the waterproof USB Type C socket connector according to the first embodiment of the present application, which mainly shows the rough surface structure on the inner wall surface of the rear section of the shielding inner shell and the rough surface structure formed on the outer peripheral surface of the waterproof adhesive.

[0071] Fig. 9 is a perspective view of a waterproof USB Type C socket connector according to a second embodiment of the present application.

[0072] Fig. 10 is a front view of the waterproof USB Type C socket connector shown in Fig. 9.

[0073] Fig. 11 is a partial exploded perspective view of the waterproof USB Type-C receptacle connector of the second embodiment of the present application, particularly showing the shielding inner housing, the waterproof ring and the waterproof gel separated from the insulating body.

[0074] Fig. 12 is a further exploded perspective view of the waterproof USB Type-C receptacle connector shown in Fig. 11.

[0075] Fig. 13 is a further exploded perspective view of the waterproof USB Type-C receptacle connector shown in Fig. 12.

[0076] Fig. 14 is a sectional view taken along line A-A in Fig. 10.

[0077] Fig. 15 is a sectional view taken along line A-A in Fig. 10, further showing a schematic view of the waterproof gel separated from the insulating body.

[0078] Fig. 16 is a sectional view taken along line B-B in Fig. 10.

[0079] Fig. 17 is an enlarged view of the structure in the dashed line frame in Fig. 14.

[0080] Fig. 18 is an enlarged view of the structure in the dashed line frame in Fig. 14, further showing a schematic view of the waterproof gel separated from the insulating body.

[0081] Fig. 19 is a perspective view of the waterproof gel implanted into the waterproof groove of the waterproof USB Type-C receptacle connector of the second embodiment of the present application. DETAILED DESCRIPTION

[0082] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0083] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "assembling", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0084] In the description of the present application, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units need not be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0085] In the first embodiment of the present application, all the directions are referred to the drawing 1, and the direction of X axis is defined as left-right direction, the direction of Y axis is defined as up-down direction, and the positive direction of Y axis is up, and the direction of Z axis is defined as the direction of docking connector, and the positive direction of Z axis is the insertion direction of docking connector.

[0086] Referring to FIG. 1 and FIG. 8, the waterproof USB Type C socket connector disclosed by the present application includes an insulating body 1 made of insulating material, a plurality of terminal pieces 2 and a shielding inner shell 3 formed by integral injection molding and fixed with the insulating body. Specifically, the insulating body 1 is formed with a base 11, a root 12 and a tongue end 13 connected in turn along the docking direction of the docking connector. Each terminal piece 2 includes a docking segment 21, a fixed segment 22 and a contact segment 23 connected in turn along the docking direction. Among them, the docking segment 21 is exposed outside the base 11 for docking with the docking circuit board. The fixed segment 22 is embedded and fixed in the base 11 and the root 12. The contact segment 23 is arranged in two rows and fixed on the upper surface and the lower surface of the tongue end 13, and each contact segment 23 includes a contact part exposed to the upper surface or the lower surface of the tongue end 13. In the embodiment of the present application, the insulating body 1 can be directly formed by one-time injection molding, of course, it can also be formed by multiple injection molding.

[0087] Referring to FIG. 2 to FIG. 7, a waterproof groove 101 is formed through the base 11 along the up-down direction, and an implantation groove 102 is formed by downward recessing at the front end position of the upper surface of the base 11 in the insertion direction of the docking connector, and the implantation groove 102 does not penetrate the base 11 along the up-down direction. The waterproof groove 101 and the implantation groove 102 are communicated along the docking direction of the docking connector. The fixed segment 22 of each terminal piece 2 includes a sealing segment 221 exposed in the waterproof groove 101, and preferably, the entire circumference of the outer periphery of each sealing segment 221 is exposed in the waterproof groove 101.

[0088] Further, the shielding inner shell 3 comprises a rear section 31, a front section 32 and a connecting section 33 connecting the rear section 31 and the front section 32. The rear section 31 is annularly arranged around the outer periphery of the base 11 near one end of the base 11, the waterproof groove 101 is surrounded by the rear section 31, the implant groove 102 is at least partially not closed by the rear section 31 upwardly to form an implant inlet 1021, and the front section 32 is arranged around the outer periphery of the tongue root 12. In a preferred embodiment, the rear section 31 covers and extends beyond the waterproof groove 101 in the insertion direction of the docking connector, and the waterproof groove 101 is not exposed to the rear section 31 in the up-down direction. In a preferred embodiment, the shielding inner shell 3 is formed by drawing a metal plate or a metal tube, and the rear section 31 is seamless in the circumferential direction.

[0089] Referring to FIGS. 2 to 6, the connecting section 33 of the shielding inner shell 3 is annular and corresponds to the front end surface of the base 11. The front section 32 corresponds to the outer surface of the tongue root 12. In the embodiment, the shielding inner shell 3 is assembled on the insulating body 1 in the insertion direction of the docking connector. In a preferred embodiment, the front section 32 is provided with a reserved seam 320 at both side positions of the tongue root 12, so that the front section 32 is divided into an upper cover 321 and a lower cover 322. The upper cover 321 and the lower cover 322 are respectively and independently connected to the connecting section 33. This design allows the upper cover 321 and the lower cover 322 to have a certain deformation space in the up-down direction, which can ensure that the shielding inner shell 3 is more easily assembled on the insulating body 1, and more importantly, in the process of assembling the shielding inner shell 3 on the insulating body 1, the inner wall of the shielding inner shell 3 and the partition 5 (described below) are prevented from being scratched and causing defects (especially at the position of the locking portion 53 of the partition 5). Of course, in a preferred embodiment, the inner side of the connecting section 33 is also provided with a clearance gap (not labeled) corresponding to the position of the reserved seam 320, which also prevents the partition 5 from being scratched.

[0090] Please refer to Fig. 2, the above-mentioned partition 5 comprises a main body 51 embedded in the insulating body 1, a reinforcing lug 52 formed by the main body 51 extending laterally at one end of the base 11, and a locking portion 53 formed by the main body 51 extending laterally at one end of the tongue end 13 and exposed to both sides of the tongue end 13. The portion of the main body 51 embedded in the tongue end 13 and the tongue root 12 is located between the two rows of contact sections 23 in the up-down direction. The base 11 has two sides extending laterally to form a fixed lug 114, and the reinforcing lug 52 is embedded in the fixed lug 114. The waterproof USB Type C socket connector also has a locking hole 104 that penetrates the fixed lug 114 and the reinforcing lug 52 in the up-down direction. Further, the partition 5 also has an extension piece 54 formed by bending and extending from the main body 51, which is exposed from the upper surface or lower surface of the tongue root 12 and adheres to the inner surface of the front section 32 and is fixed by welding.

[0091] Please refer to Figs. 4 to 7, the inner bottom surface of the implant groove 102 forms an inclined surface 1022, so that the depth of the implant groove 102 in the up-down direction gradually expands in the direction of pulling out the docking connector. The waterproof groove 101 surrounds the inner annular surface of the rear section 31. The waterproof USB Type C socket connector also includes a waterproof adhesive 4, which includes a first part 41 filled into the waterproof groove 101 and a second part 42 filled into the implant groove 102. In actual production, the waterproof adhesive 4 is preferably a waterproof adhesive with fluidity, which is injected through the implantation port 1021 and flows into the waterproof groove 101 through the implantation groove 102. In a preferred embodiment, the waterproof adhesive 4 fills the gap between the rear section 31 and the base 11; the waterproof adhesive 4 fills the gap between the connecting portion 33 and the front end surface of the base 11; the waterproof adhesive 4 fills the gap between the front section 32 and the tongue root 12. In addition, the first part 41 of the waterproof adhesive 4 fills and adheres to the entire inner annular surface of the rear section 31. In a more preferred embodiment, the waterproof adhesive 4 fills the implantation groove 102 and the waterproof groove 101. The inclined surface 1022 is used to guide the flow of the waterproof adhesive 4, and in addition, it can make the channel cross-section of the connection position of the implantation groove 102 and the waterproof groove 101 larger, which is beneficial to the flow of the waterproof adhesive 4.

[0092] The waterproof USB Type C socket connector of the application can be directly inserted and assembled into the electronic device, and a cavity is formed through the shell of the electronic device, the tongue root part 12 and the tongue end part 13 are inserted into the cavity, and a docking cavity for inserting the docking connector is jointly defined. In order to ensure the assembly tightness between the waterproof USB Type C socket connector of the application and the electronic device, the rear section 31 is further provided with an elastic gasket 6 on the outer periphery.

[0093] Please refer to FIG. 8, in order to achieve better waterproof performance, the inner wall surface of the rear section 31 of the shielding inner shell 3 is further processed to form a rough surface 310, which surrounds the entire inner wall surface of the rear section 31, for example, it can be a dimple, a sawtooth surface structure, or an embossing structure. The rough surface 310 can increase the tightness of the waterproof adhesive 4, and at the same time can increase the holding force with the outer surface of the base 11. The outer periphery of the waterproof adhesive 4 is also matched with a rough surface structure 40. Through the embodiment of the application, better waterproof performance can be achieved, and the waterproof adhesive 4 can be more easily implanted during product production.

[0094] FIGS. 9-19 are a second embodiment of the application, all directions involved in the second embodiment are defined with reference to FIG. 9, specifically, the direction of X axis is defined as the front-back direction (i.e. the plug-in direction of the docking connector), wherein the positive direction of X axis is forward; the direction of Y axis is defined as the up-down direction, wherein the positive direction of Y axis is upward; the direction of Z axis is defined as the left-right direction (i.e. the width direction).

[0095] Please refer to FIGS. 9-19, a second embodiment of a waterproof USB Type C socket connector disclosed by the application is shown, which comprises an insulating body 1 made of insulating material, a plurality of terminal pieces 2 formed integrally with the insulating body by injection molding, and a shielding inner shell 3 assembled on the periphery of the insulating body 1. Specifically, the insulating body 1 is formed with a base 11, a tongue root part 12 and a tongue end part 13 connected in sequence in the front-back direction. Each terminal piece 2 comprises a docking section 21, a fixed section 22 and a contact section 23 connected in sequence in the docking direction. Among them, the docking section 21 protrudes outward from the base 11 for docking with the docking circuit board (the docking substrate inside the electronic device). At least part of the fixed section 22 is embedded and fixed in the base 11 and the tongue root part 12. The contact section 23 is arranged in two rows on the upper surface and the lower surface of the tongue end part 13, and each contact section 23 comprises a contact surface (not numbered) exposed to the upper surface or the lower surface of the tongue end part 13 for docking with the docking connector.

[0096] Please refer to Figs. 11-18, in the present application, the shielding inner shell 3 comprises a rear section 31, a front section 32 and a connecting section 33 connecting the rear section 31 and the front section 32. In a preferred embodiment, the shielding inner shell 3 is formed by a metal plate through integral drawing / stretching processing, or can also be formed by a metal tube processing. The shielding inner shell 3 is seamless in the circumferential direction, the rear section 31 is a closed ring, the front section 32 is a closed ring, and the connecting section 33 is a closed ring. The rear section 31 is circumferentially arranged at one end of the base 11 close to the root of the tongue 12. The front section 32 is circumferentially arranged on the outer periphery of the root of the tongue 12. Further, the outer periphery of the root of the tongue 12 of the insulating body 1 is protruded to form a stop portion 121 close to the tongue end 13, the stop portion 121 is stopped at the front end of the front section 32, and the shielding inner shell 3 is assembled on the outer periphery of the insulating body 1 from front to back.

[0097] Further, the base 11 of the insulating body 1 is defined to form a waterproof section 111 at one end adjacent to the root of the tongue 12, and the base 11 further comprises a base section 112 located behind the waterproof section 111, and a waterproof groove 113 is formed between the base section 112 and the waterproof section 111. The rear section 31 at least surrounds the waterproof groove 113 and the waterproof section 111. In a preferred embodiment of the present application, at least part of the position of the outer periphery of the waterproof section 111 and the inner surface of the rear section 31 forms a gap space 110, and the waterproof gel 5 is implanted in the gap space 110. In a more preferred embodiment, the gap space 110 surrounds the waterproof section 111, and the waterproof gel 5 surrounds the waterproof section 111.

[0098] Please refer to Figs. 9, 11, 14-16, the fixed section 22 of each terminal piece 2 comprises a sealing section 221 exposed in the waterproof groove 113, and the entire periphery of the sealing section 221 is exposed in the waterproof groove 113. In a preferred embodiment of the present application, the waterproof section 111 and the base section 112 are completely disconnected in the front-rear direction and are integrally connected only by the fixed section 22 of the terminal piece 2. Of course, in other embodiments, the waterproof section 111 and the base section 112 can also be designed in the form of integral connection at local positions, such as in the left-right direction, at positions outside the arrangement area of a plurality of terminal pieces 2. One side surface (upper surface) of the base section 112 is inwardly recessed to form an implantation groove 1121, which is in communication with the waterproof groove 113 in front. The implantation groove 1121 forms an implantation port (not numbered) at the rear end of the shielding inner shell 3 and opens upward. The waterproof gel 5 is implanted in the waterproof groove 113 and the gap space 110 through the implantation groove 1121 (implantation port). The waterproof gel 5 surrounds the sealing section 221.

[0099] Please refer to Figs. 9-19, the outer surface of the rear section 31 is inwardly recessed to form a groove portion 311. A waterproof ring 4 is annularly arranged on the outer periphery of the rear section 31 and at least partially annularly arranged in the groove portion 311 of the rear section 31, and the waterproof ring 4 protrudes outwardly beyond the outer surface of the rear section 31. The rear end edge of the rear section 31 is outwardly turned to form a stop portion 312, which is located rearward of the waterproof ring 4 and forms a stop position for the rearward movement or deformation of the waterproof ring 4. The gap space 110 is located at the front end of the groove portion 311.

[0100] Further, the inner surface of the groove portion 311 of the rear section 31 is protruded inwardly into the waterproof groove 113 in a complete circle, so that the inner surface of the shielding inner shell 3 forms an uneven winding structure from the front end to the rear end. The uneven inner surface of the shielding inner shell 3 can help to prevent water vapor from penetrating from the front end to the rear end of the inner surface of the shielding inner shell 3, thereby improving the waterproof performance. In addition, the design of the groove portion 311 can also make the combination between the waterproof ring 4 and the shielding inner shell 3 more firm, and reduce the risk of the waterproof ring 4 being separated from the shielding inner shell 3. In addition, in the preferred embodiment of the present application, the outer periphery of the base portion 11 is defined to form a right-angled stop corner portion 114 at the position adjacent to the tongue root portion 12, and the inner surface of the connecting portion 33 forms a line contact with the stop corner portion 114. The waterproof gel 5 flowing into the gap space 110 can be as much as possible to be stopped at the contact position between the inner surface of the connecting portion 33 and the stop corner portion 114, so as to prevent too much waterproof gel 5 from penetrating forward along the inner surface of the connecting portion 33 and the front section 32 to the surface of the tongue end portion 13. The waterproof gel 5 can be formed by solidifying a liquid waterproof gel.

[0101] In the present application, by providing the gap space 110, the combination area between the waterproof gel 5 and the inner surface of the rear section 31 of the shielding inner shell 3 is increased, especially the combination width in the front-rear direction, so that the penetration path of water vapor from the front end to the rear end of the inner surface of the shielding inner shell 3 is increased and tortuous, which can improve the waterproof effect. In addition, in the preferred embodiment of the present application, the stop portion 312 at the rear end position of the rear section 31 is formed in a complete annular shape. The lower surface of the base section 112 is further formed with a stop portion 1122, and the rear end edge of the shielding inner shell 3 (specifically, the rear end surface of the stop portion 312 at the corresponding position of the shielding inner shell 3) is correspondingly stopped at the front end surface of the stop portion 1122.

[0102] Please refer to Figs. 11-13 and 17-19, in the present application, the terminal pieces 2 include an upper row of terminal pieces and a lower row of terminal pieces. The insulating body 1 includes an upper insulating piece 101 fixed integrally with the upper row of terminal pieces, a lower insulating piece 102 fixed integrally with the lower row of terminal pieces, and an outer insulating piece 103 fixed integrally with the upper insulating piece 101 and the lower insulating piece 102 stacked together. A clearance portion 1011 is formed between the upper insulating piece 101 and the lower insulating piece 102 at a position adjacent to the front end of the waterproof groove 113, the clearance portion 1011 is in communication with the waterproof groove 113, and the waterproof gel 5 is implanted in the clearance portion 1011. Also, in order to improve the waterproof performance.

[0103] The waterproof USB Type C socket connector in the embodiments of the present application further includes a middle partition plate 6 embedded in the insulating body 1 and located between the upper row of terminal pieces and the lower row of terminal pieces. The rear end of the base 11 extends to form an ear portion 115 on both sides, the rear end of the middle partition plate 6 extends to form a lap portion 61 exposed to the front end face of the ear portion 115, and the lap portion 61 is tightly attached to the rear surface of the stop portion 312 on both sides of the rear section 31 and is fixed by welding.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0105] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A waterproof USB Type-C receptacle connector, characterized by, Comprise: An insulating body formed with a base portion, a tongue root portion and a tongue end portion connected in sequence along a mating direction; A plurality of terminal pieces, each of which comprises a mating segment, a fixing segment and a contact segment connected in sequence along the mating direction, the mating segment being exposed to the base portion; The fixing segment is embedded and fixed in the base portion and the tongue root portion; The contact segment is arranged in two rows and fixed on the upper surface and the lower surface of the tongue end portion, each of the contact segments comprises a contact part exposed to the outside of the upper surface or the lower surface of the tongue end portion; A waterproof groove is formed on the base portion along the up-down direction; An implantation groove is located at the front end of the waterproof groove along the insertion direction of the mating connector and is recessed downward from the upper surface of the base portion; The waterproof groove and the implantation groove are communicated along the mating direction of the mating connector; Each of the fixing segments comprises a sealing segment exposed to the waterproof groove; A shielding inner shell comprises a rear segment portion, the rear segment portion is annularly arranged around the outer periphery of one end of the base portion close to the tongue root portion, the waterproof groove is surrounded by the rear segment portion, the implantation groove is at least partially not closed by the rear segment portion upwardly to form an implantation opening; A waterproof gel comprises a first part filled into the waterproof groove and a second part filled into the implantation groove.

2. The waterproof USB Type-C receptacle connector of claim 1, wherein: The rear segment portion covers and exceeds the waterproof groove along the insertion direction of the mating connector, along the up-down direction, the waterproof groove does not expose the rear segment portion.

3. The waterproof USB Type-C receptacle connector of claim 1, wherein: The inner bottom surface of the implantation groove forms an inclined surface so that the depth of the implantation groove in the up-down direction gradually expands along the pulling-out direction of the mating connector.

4. The waterproof USB Type-C receptacle connector of claim 1, wherein: The first part of the waterproof gel fills and adheres to the inner annular surface of the rear segment portion.

5. The waterproof USB Type C socket connector according to claim 1, characterized in that: The shielding inner shell further comprises a front segment portion and a connecting portion connecting the rear segment portion and the front segment portion, the front segment portion is arranged around the outer periphery of the tongue root portion, and the connecting portion is attached to the front end surface of the base portion; The waterproof gel fills the gap between the rear segment portion and the base portion; and / or The waterproof gel fills the gap between the connecting portion and the front end surface of the base portion; and / or The waterproof gel fills the gap between the front segment portion and the tongue root portion.

6. The waterproof USB Type-C receptacle connector of claim 1, wherein: The shielding inner shell is formed by drawing and stretching a metal plate or a metal tube, and the rear segment portion is seamless along the circumferential direction.

7. The waterproof USB Type C socket connector according to claim 1, characterized in that: The shielding inner shell further comprises a front segment portion and a connecting portion connecting the rear segment portion and the front segment portion, the front segment portion is arranged around the outer periphery of the tongue root portion, and the connecting portion is attached to the front end surface of the base portion; The front segment portion is formed with a reserved seam at both side surfaces of the tongue root portion, so that the front segment portion is divided into an upper cover piece and a lower cover piece; The upper cover piece and the lower cover piece are respectively and independently connected with the connecting portion integrally.

8. The waterproof USB Type-C receptacle connector of claim 1, wherein: Further comprising at least one partition piece, the partition piece comprises a main body embedded in the insulating body, a reinforcing lug portion formed by the main body at one end of the base portion and extending in the transverse direction, and a locking portion formed by the main body at one end of the tongue end portion and extending in the transverse direction and exposed to both side surfaces of the tongue end portion; The portion of the main body embedded in the tongue end portion and the tongue root portion is located between the two rows of contact segments along the up-down direction; Two sides of the base are formed with fixing lugs extending in the transverse direction, and the reinforcing lugs are fixed to the fixing lugs; A locking hole is formed through the fixing lugs and the reinforcing lugs in the up-down direction. 9.The waterproof USB Type C socket connector of claim 1, wherein: The shielding inner shell further comprises a front section and a connecting section connecting the rear section and the front section, the front section surrounds the outer periphery of the tongue root section, and the connecting section is attached to the front end surface of the base; Further comprising at least one partition, the partition comprises a main body embedded in the insulating body and a locking portion extending from one end of the main body at the tongue end section in the transverse direction and exposed to the two side surfaces of the tongue end section; The main body is embedded in at least part of the tongue end section and the tongue root section and is located between the two rows of contact sections in the up-down direction; An extension piece is formed by bending and extending from the main body, the extension piece is exposed from the upper surface or the lower surface of the tongue root section and is attached to the inner surface of the front section and is fixed by welding.

10. The waterproof USB Type-C receptacle connector of claim 1, wherein: The inner wall surface of the rear section of the shielding inner shell is further formed with a rough surface, the rough surface surrounds the entire inner wall surface of the rear section, and the rough surface directly contacts the outer peripheral surface of the waterproof adhesive.

11. The waterproof USB Type-C receptacle connector of claim 1, wherein: The implantation groove does not penetrate the base in the up-down direction.

12. The waterproof USB Type-C receptacle connector of claim 1, wherein: The outer peripheral surface of the rear section is further sleeved with an elastic gasket. 13.The waterproof USB Type C socket connector of any one of claims 1 to 11, wherein: The shielding inner shell further comprises a front section and a connecting section connecting the rear section and the front section, the front section surrounds the outer periphery of the tongue root section; A groove portion is formed by inwardly recessing the outer surface of the rear section; A waterproof ring is annularly arranged around the outer periphery of the rear section and is at least partially annularly arranged in the groove portion of the rear section, and the waterproof ring protrudes outward from the outer surface of the rear section.

14. The waterproof USB Type-C receptacle connector of claim 13, wherein: A stop portion is outwardly formed at the rear end of the rear section, the stop portion is located behind the waterproof ring, and the stop portion stops the rearward movement or deformation of the waterproof ring.

15. The waterproof USB Type-C receptacle connector of claim 13, wherein: The base is defined with a waterproof section at one end adjacent to the tongue root section, the rear section surrounds the waterproof section, at least part of the outer peripheral surface of the waterproof section is spaced apart from the inner surface of the rear section, and the gap space is filled with the waterproof adhesive.

16. The waterproof USB Type-C receptacle connector of claim 15, wherein: The gap space surrounds the waterproof section, and the waterproof adhesive surrounds the waterproof section.

17. The waterproof USB Type-C receptacle connector of claim 15, wherein: The gap space is located at the front end of the groove portion. 18.The waterproof USB Type C socket connector of claim 13, wherein: The plurality of terminal pieces comprise an upper row of terminal pieces and a lower row of terminal pieces; The insulating body comprises an upper insulating piece integrally fixed with the upper row of terminal pieces, a lower insulating piece integrally fixed with the lower row of terminal pieces, and an outer insulating piece integrally fixed with the upper insulating piece and the lower insulating piece after being stacked; A clearance portion is formed between the upper insulating piece and the lower insulating piece at a position adjacent to the waterproof groove and in front of the pulling-out direction of the mating connector, the clearance portion is communicated with the waterproof groove, and the waterproof adhesive is filled in the clearance portion.

19. The waterproof USB Type-C receptacle connector of claim 13, wherein: The inner surface of the groove portion of the rear section protrudes into the waterproof groove.

20. The waterproof USB Type-C receptacle connector of claim 13, wherein: The outer peripheral surface of the base portion defines a right-angled stop corner portion at a position close to the tongue root portion, and a line contact is formed between the inner surface of the connecting portion and the stop corner portion.

21. The waterproof USB Type-C receptacle connector of claim 13, wherein: The outer peripheral surface of the tongue root portion is protrusively formed with a stop portion at a position close to the tongue end portion, the stop portion stopping at the front end edge of the front section portion, and the shielding inner shell is assembled to the periphery of the insulating body by sleeving over the stop portion in the insertion direction of the mating connector.

22. The waterproof USB Type-C receptacle connector of claim 21, wherein: The base portion is formed with a stop portion, and the stop portion of the shielding inner shell stops at the front end surface of the stop portion.

23. The waterproof USB Type-C receptacle connector of claim 14, wherein, Further comprising: The terminal pieces include an upper row of terminal pieces and a lower row of terminal pieces. A partition plate is embedded in the insulating body and located between the upper and lower rows of terminal pieces. The rear end of the base portion is formed with an ear portion extending in the width direction, the partition plate is formed with a lap portion exposed forwardly from the front end surface of the ear portion, and the lap portion is tightly attached to the rear surface of the stop portion at both sides of the rear section portion and fixed by welding.

24. The waterproof USB Type-C receptacle connector of claim 14, wherein, The stop portion surrounds the rear section portion.

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