Waterproof USB Type C socket connector

Abstract

The utility model discloses a waterproof USB Type C socket connector, and the connector comprises an insulating seat which sequentially comprises a tongue root segment, a tongue plate segment, and a tail segment from front to back; each terminal comprises a fixed section which is embedded and fixed in the tongue root section and the tail section; a cylindrical outer wall, an annular rear wall combined with the rear end edge of the cylindrical outer wall and a cylindrical inner wall combined with the inner edge of the annular rear wall are formed on the metal shell, and the cylindrical inner wall is combined on the outer surface of the tongue root section in a surrounding mode; the glue containing groove is formed in the tongue root section and exposes a circle of the outer surface at the corresponding position of each fixing section and a circle of the inner ring surface at the corresponding position of the cylindrical inner wall; the waterproof piece is filled in the glue containing groove; the part, exposed in the glue containing groove, of the fixed section of at least one terminal forms a sunken area, the sunken area is formed by inwards sinking the surface of one side, close to the inner ring face of the cylindrical inner wall in the vertical direction, of the corresponding fixed section, and the waterproof piece is combined with the sunken area.

Description

TECHNICAL FIELD

[0001] The application relates to a waterproof USB Type C socket connector. BACKGROUND

[0002] 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 10Gbps. 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 of 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, the faster transmission speed (up to 10Gbps) and the more powerful power transmission (up to 100W). The biggest advantage is to support front and back insertion, which solves the problem of "USB always not plugged in".

[0003] For related prior art, please refer to Chinese invention patent application publication CN109428190A, which discloses a USB Type C socket connector in an ultra-short shape, which is mainly used in the internal space of an electronic device, especially the overall length of the USB Type C socket connector in the direction of the interface is shortened, which is basically at the limit. The USB Type C socket connector in the prior art realizes waterproof through a waterproof rubber plate 7 blocked at the rear end, but due to the limitation of length space, the space left for the waterproof rubber plate 7 is already very small, which is not conducive to the overall waterproof performance.

[0004] Therefore, it is necessary to design a new USB Type C connector to solve the above technical problems. CONTENT OF THE INVENTION

[0005] The application aims to provide a waterproof USB Type C socket connector, which can realize better waterproof effect and is beneficial to miniaturization design.

[0006] To achieve the purpose, the application provides the following technical scheme:

[0007] A waterproof USB Type C socket connector, comprising:

[0008] An insulating seat is formed with a tongue root section, a tongue plate section connected to the front end of the tongue root section, and a tail section at the rear end of the tongue root section;

[0009] A plurality of terminals, each terminal comprising a fixed segment embeddedly fixed in the root section and the tail section, a contact segment extended forward from one end of the fixed segment and embeddedly fixed in the tongue plate section, and a mating segment extended backward from the other end of the fixed segment out of the tail section, each contact segment formed with a contact surface exposed to the surface of the tongue plate section;

[0010] A metal shell formed with a cylindrical outer wall, an annular back wall combined with the rear end edge of the cylindrical outer wall, and a cylindrical inner wall combined with the inner edge of the annular back wall, the cylindrical inner wall surrounding the outer surface of the root section;

[0011] The inner annular surface of the cylindrical outer wall, the front surface of the annular back wall, the outer annular surface of the cylindrical inner wall, and the outer surface of the tongue plate section jointly define an annular mating cavity and form an insertion opening at the front end;

[0012] A glue-containing groove formed in the root section, exposing the outer surface of the corresponding position of each fixed segment and the inner annular surface of the corresponding position of the cylindrical inner wall;

[0013] A waterproof member filled in the glue-containing groove and tightly combined with the outer surface of the corresponding position of each fixed segment and the inner annular surface of the corresponding position of the cylindrical inner wall;

[0014] The portion of the fixed segment of at least one terminal exposed in the glue-containing groove is formed with a recessed area, the recessed area is recessed inward from the side surface of the corresponding fixed segment close to the inner annular surface of the cylindrical inner wall in the up-down direction, and the waterproof member is tightly combined with the recessed area.

[0015] Further, the recessed area is formed by thinning the fixed segment of the corresponding terminal.

[0016] Further, it further comprises an implantation groove recessed downward from the upper surface of the tail section, the implantation groove communicates with the glue-containing groove in the front-rear direction, the implantation groove does not penetrate downward through the tail section, and the glue-containing groove only communicates with the outside through the implantation groove.

[0017] Further, the glue-containing groove is located entirely in front of the plane where the front surface of the annular back wall is located, and the glue-containing groove is located entirely behind the plane where the front end edge of the cylindrical inner wall is located.

[0018] Further, the glue-containing groove is located entirely in front of the plane where the front surface of the annular back wall is located.

[0019] Further, the inner surface of the implantation groove is further recessed downward to form a reinforcing groove, the reinforcing groove is located between the fixed segments of two adjacent terminals, and the reinforcing groove communicates forward with the glue-containing groove.

[0020] Further, a rear surface of the annular rear wall is rear-stopped at a front end surface of the tail section.

[0021] Further, the plurality of terminals include an upper row of terminals arranged on an upper surface of the tongue plate section and a lower row of terminals arranged on a lower surface of the tongue plate section, and each of the terminals in the upper row of terminals and each of the terminals in the lower row of terminals has the fixing section formed with the recessed region.

[0022] Further, the waterproof USB Type C receptacle connector further comprises a housing member formed with a housing main body covering an outer surface of the metal shell, a housing rear baffle covering a rear end surface of the tail section, and a stepped connecting plate connecting a rear end edge of the housing main body and the housing rear baffle;

[0023] a glue inlet window formed through a connecting position of the connecting plate and the housing rear baffle, a part of the glue inlet window being formed at a rear end edge position of the connecting plate, and another part of the glue inlet window being formed at an upper end edge position of the rear baffle.

[0024] Further, the waterproof USB Type C receptacle connector further comprises a bottom shell member formed with a bottom shell main body abutting a lower surface of the metal shell and extension wing portions extending outward from both sides of the bottom shell main body;

[0025] the bottom shell main body abutting the lower surface of the metal shell, the fitting wing portions extending outward from both sides of the bottom shell main body being stacked and combined with the extension wing portions in a vertical direction;

[0026] a welding foot portion extending downward from both side edges of the connecting plate;

[0027] an extension foot extending rearward from a rear end edge of the extension wing portion;

[0028] a fitting welding foot extending downward from one side of the extension foot, the fitting welding foot abutting the welding foot portion in a horizontal direction;

[0029] a fixing foot portion extending upward from the other side of the extension foot, the fixing foot portion being inserted and fixed into a fixing groove formed upward in a lower surface of the tail section.

[0030] Compared with the prior art, the waterproof USB Type C receptacle connector has the advantages of better waterproof effect and small size. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a perspective view of a waterproof USB Type C receptacle connector.

[0032] Figure 2 is Figure 1A perspective view of the waterproof USB Type-C receptacle connector from another angle.

[0033] Figure 3 is Figure 1 A top view of the waterproof USB Type-C receptacle connector.

[0034] Figure 4 is from Figure 3 A sectional view along line A-A.

[0035] Figure 5 is from Figure 3 A sectional view along line B-B.

[0036] Figure 6 is from Figure 3 A sectional view along line C-C.

[0037] Figure 7 is a partial exploded view of the waterproof USB Type-C receptacle connector of the present application.

[0038] Figure 8 is Figure 7 A perspective view from another angle.

[0039] Figure 9 is a partial exploded view of the waterproof USB Type-C receptacle connector of the present application, specifically showing a perspective view of the metal shell, the shell piece and the bottom shell piece separated.

[0040] Figure 10 is Figure 5 An enlarged view of the structure within the dashed box. DETAILED DESCRIPTION

[0041] 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 the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0042] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "assembling", "connecting", "connecting", "combining" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the description herein, it is to be understood that the terms such as "including" and "having," along with their derivatives, as used herein are meant to be construed open-ended terms that allow for instances where there has been an inclusion of an element or integer or step with inadvertent exclusion thereof.

[0044] In addition, for the sake of accuracy, all directions in the present application are defined with reference to the following directions: Figure 1 The X-axis direction is defined as the left-right direction; the Y-axis direction is defined as the up-down direction, with the Y-axis positive direction being up; and the Z-axis direction is defined as the front-back direction (i.e., the mating direction of the connector), with the Z-axis positive direction being back (i.e., the insertion direction of the connector).

[0045] Referring to Figures 1 to 10 The waterproof USB Type C socket connector disclosed in the present application includes an insulating seat 1 made of insulating material, a plurality of terminals 2 fixed to the insulating seat 1 by integral injection molding, a metal shell 3 assembled around the insulating seat 1, an outer shell member 7 and a bottom shell member 8 assembled and fixed around the metal shell 3. The insulating seat 1 is formed with a tongue root section 11, a tongue plate section 12 connected to the front end of the tongue root section 11, and a tail section 13 located at the rear end of the tongue root section 11.

[0046] Each of the terminals 2 is made of metal conductive material and includes a fixed section 21 embedded and fixed in the tongue root section 11 and the tail section 13, a contact section 22 extending forward from one end (front end) of the fixed section 21 and embedded and fixed in the tongue plate section 12, and a mating section 23 extending out of the tail section 13 from the other end of the fixed section 21. Each of the contact sections 22 is formed with a contact surface 221 exposed to the surface of the tongue plate section 12. In the drawings of the present application, the plurality of terminals 2 include an upper row of terminals 201 arranged and combined on the upper surface of the tongue plate section 12 and a lower row of terminals 202 arranged and combined on the lower surface of the tongue plate section 12. The socket connector of the present application is a non-full-PIN USB Type C socket connector. The upper row of terminals 201 is provided with eight terminals, and the lower row of terminals 202 is also provided with eight terminals. As for the upper row of terminals 201, they are arranged from left to right as follows: one ground terminal, one power terminal, four signal terminals, one power terminal, and one ground terminal. Of course, the number of terminals 2 is not limited, and the full-PIN USB Type C socket architecture can also be provided with twelve terminals in each of the upper row of terminals 201 and the lower row of terminals 202.

[0047] Referring to Figures 5 to 9As shown, preferably, the metal shell 3 is formed by drawing a metal plate or a metal tube, and the metal shell 3 has no joint to facilitate waterproofing. The metal shell 3 is formed with a cylindrical outer wall 31, an annular rear wall 32 combined with the rear end of the cylindrical outer wall 31, and a cylindrical inner wall 33 combined with the inner edge of the annular rear wall 32, and the cylindrical inner wall 33 is arranged around the outer surface of the tongue root section 11. The tongue plate section 12 is protruded forward in a cantilevered manner. The inner annular surface of the cylindrical outer wall 31, the front surface of the annular rear wall 32, the outer annular surface of the cylindrical inner wall 33, and the outer surface of the tongue plate section 12 jointly define the annular docking cavity 10 and form an insertion opening 101 at the front end. Preferably, the rear surface of the annular rear wall 32 is arranged to abut against the front end surface 130 of the tail section 13.

[0048] The tongue root section 11 is formed with a glue accommodating groove 4, and the glue accommodating groove 4 exposes the outer surface of the corresponding position of each fixing section 21 and the inner annular surface of the corresponding position of the cylindrical inner wall 33. The glue accommodating groove 4 is filled with waterproof member 5 formed by waterproof glue. Figure 4 and Figure 7 As shown). The waterproof member 5 forms waterproof isolation between the annular docking cavity 10 and the rear end of the waterproof USB Type C socket connector.

[0049] In a preferred embodiment, the upper surface of the tail section 13 is further recessed downward to form an implant groove 6, which is in communication with the glue accommodating groove 4 in the front-rear direction. Preferably, the implant groove 6 does not penetrate the tail section 13 downward. Further, in a more preferred embodiment, the entire glue accommodating groove 4 is located in front of the plane where the front surface of the annular rear wall 32 is located, and the entire glue accommodating groove 4 is located behind the plane where the front end edge of the cylindrical inner wall 33 is located. In a preferred manner, the glue accommodating groove 4 is only in communication with the outside through the implant groove 6, and the implant groove 6 serves as the only channel for waterproof glue to implant into the glue accommodating groove 4. In this way, better waterproof performance can be achieved, and the risk of leakage during the process of implanting waterproof glue into the glue accommodating groove 4 and during the process of solidification can be prevented. In addition, by arranging the glue accommodating groove 4 at the positions of the cylindrical inner wall 33 and the tongue root section 11, the overall strength of the waterproof USB Type C socket connector can be effectively shortened, and the waterproof member 5 can be arranged inside the entire waterproof USB Type C socket connector, avoiding the influence and damage to the sealing performance of the waterproof member 5 caused by harsh use factors during use.

[0050] Please refer to Figure 5 , Figure 6 and Figure 10As shown, due to the small space formed by the cylindrical inner wall 33, the shielding distance between the terminal 2 and the cylindrical inner wall 33 is limited by the design space, and when the glue containing groove 4 is designed inside the cylindrical inner wall 33, due to the limitation of the waterproof glue material forming the waterproof member 5 and the like, in some cases, such as when the waterproof performance of the waterproof member 5 is worse than that of the insulating seat 1, the terminal 2 is prone to short circuit with the cylindrical inner wall 33, especially when the power terminal is designed to be able to realize large current transmission, the risk of short circuit or breakdown is greater. Therefore, in the preferred embodiment of the present application, the part of the fixed section 21 of the terminal 2 exposed in the glue containing groove 4 forms a recessed area 20, the recessed area 20 is formed by the inner recess of the side surface of the corresponding fixed section 21 close to the inner ring surface of the cylindrical inner wall 33 in the up-down direction, the waterproof member 5 is tightly combined with the recessed area 20, and the setting of the recessed area 20 can form sufficient insulation distance between the surface of the corresponding fixed section 21 and the inner ring surface of the cylindrical inner wall 33, avoiding the risk of short circuit between the terminal and the cylindrical inner wall 33. In a more preferred embodiment, the extension width of the recessed area 20 in the front-back direction is greater than the width of the waterproof member 5. In a more preferred embodiment, the recessed area 20 of each terminal 2 extends backward and beyond the rear surface of the annular rear wall 32. In a preferred embodiment, the fixed section 21 of each terminal 2 in the upper row of terminals 201 and the lower row of terminals 202 is formed with the recessed area 20.

[0051] In one embodiment, the recessed area 20 can be formed by bending the corresponding fixed section 21 of the terminal 2 in the thickness direction; in the embodiment of the present application, it is preferred that the recessed area 20 is formed by thinning the corresponding fixed section 21 of the terminal 2, so as to ensure that the upper row of terminals 201 and the lower row of terminals 202 have sufficient insulation distance.

[0052] As shown in Figure 8 As shown, the inner surface of the implant groove 6 is further recessed downward to form a reinforcing groove 61, the reinforcing groove 61 is located between the fixed sections 21 of two adjacent terminals, the reinforcing groove 61 is in communication with the glue containing groove 4 in front, and the implant groove 6 is used to improve the flowability of the waterproof glue forming the waterproof member 5 after solidification. Improve the speed of implanting waterproof glue into the glue containing groove 4, while avoiding the occurrence of insufficient glue (waterproof glue) filling.

[0053] Please refer to Figures 7 to 9As shown, the housing member 7 is formed with a housing main body 71 covering the outer surface of the metal shell 3, a housing back baffle 72 covering the rear end surface of the tail section 13, and a stepped connecting plate 73 connecting the rear end edge of the housing main body 71 and the housing back baffle 72. The connecting plate 73 and the housing back baffle 72 are connected at a position through which a glue inlet window 70 is formed. In a preferred embodiment, one part of the glue inlet window 70 is formed at the rear end edge of the connecting plate 73, and the other part of the glue inlet window 70 is formed at the upper end edge of the back baffle 72.

[0054] The bottom shell member 8 is formed with a bottom shell main body 81 abutting the lower surface of the metal shell 3 and an extension wing 82 extending outward from both sides of the bottom shell main body 81. The housing main body 71 abuts the lower surface of the metal shell 3, and the fitting wing 74 extending outward from both sides of the housing main body 71 is stacked and combined with the extension wing 82 in the up-down direction. The side edges of the connecting plate 73 extend downward to form a welding foot 75. The rear end edge of the extension wing 82 extends rearward to form an extension foot 83. One side of the extension foot 83 extends downward to form a fitting welding foot 84. The fitting welding foot 84 abuts the welding foot 75 in the left-right direction and is inserted and fixed to the mating circuit board (not shown, which can be a substrate inside the electronic device, etc.), and in a preferred manner, can be fixed by welding. The other side of the extension foot 83 extends upward to form a fixing foot 85. The fixing foot 85 is inserted into the fixing groove 131 formed by the upward recess of the lower surface of the tail section 13 for assembly and fixation.

[0055] Through the embodiments of the present application, better waterproof performance can be achieved, and the overall miniaturization design of the waterproof USB Type C socket connector can be achieved.

[0056] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part 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.

[0057] 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, The application relates to an insulating base, a plurality of terminals, a metal shell and a waterproof member. The insulating base is formed with a root section, a tongue plate section connected to the front end of the root section and a tail section located at the rear end of the root section. Each terminal is formed with a fixed section embedded in the root section and the tail section, a contact section extending forward from one end of the fixed section and embedded in the tongue plate section and a connecting section extending backward from the other end of the fixed section and out of the tail section. The metal shell is formed with a cylindrical outer wall, an annular rear wall combined with the rear end edge of the cylindrical outer wall and a cylindrical inner wall combined with the inner edge of the annular rear wall. The inner annular surface of the cylindrical outer wall, the front surface of the annular rear wall, the outer annular surface of the cylindrical inner wall and the outer surface of the tongue plate section jointly define a plug-in opening at the front end. A glue accommodating groove is formed in the root section to expose the outer surface of the corresponding position of each fixed section and the inner annular surface of the corresponding position of the cylindrical inner wall. The waterproof member is filled in the glue accommodating groove and tightly combined with the outer surface of the corresponding position of each fixed section and the inner annular surface of the corresponding position of the cylindrical inner wall. The exposed part of the fixed section of at least one terminal in the glue accommodating groove is formed with a recessed area which is recessed inward from the side surface of the corresponding fixed section close to the inner annular surface of the cylindrical inner wall in the up-down direction.

2. The waterproof USB Type-C receptacle connector of claim 1, wherein, The recessed area is formed by thinning the fixed section of the corresponding terminal.

3. The waterproof USB Type-C receptacle connector of claim 1, wherein, The application further relates to an implant groove recessed downward from the upper surface of the tail section and communicating with the glue accommodating groove in the front-rear direction. The implant groove does not penetrate downward through the tail section, and the glue accommodating groove only communicates with the outside through the implant groove.

4. The waterproof USB Type-C receptacle connector of claim 1, wherein: The glue accommodating groove is located in front of the plane where the front surface of the annular rear wall is located, and the glue accommodating groove is located behind the plane where the front end edge of the cylindrical inner wall is located.

5. The waterproof USB Type-C receptacle connector of claim 4, wherein: The glue accommodating groove is located in front of the plane where the front surface of the annular rear wall is located.

6. The waterproof USB Type-C receptacle connector of claim 3, wherein: The inner surface of the implant groove is further recessed downward to form a reinforcing groove located between the fixed sections of two adjacent terminals.

7. The waterproof USB Type-C receptacle connector of claim 1, wherein: The rear surface of the annular rear wall is located at the front end surface of the tail section.

8. The waterproof USB Type-C receptacle connector according to any one of claims 1-7, wherein: The plurality of terminals include an upper row of terminals arranged and combined on the upper surface of the tongue plate section and a lower row of terminals arranged and combined on the lower surface of the tongue plate section.

9. The waterproof USB Type-C receptacle connector according to any one of claims 1-7, wherein, The fixed section of each terminal in the upper row of terminals and the fixed section of each terminal in the lower row of terminals are both formed with the recessed area. The application further relates to a shell member formed with a shell main body covering the outer surface of the metal shell, a shell rear baffle covering the rear end surface of the tail section and a stepped connecting plate connecting the rear end edge of the shell main body and the shell rear baffle. A glue inlet window is formed at the connecting position of the connecting plate and the shell rear baffle.

10. The waterproof USB Type-C receptacle connector of claim 9, wherein, The glue inlet window is formed at the rear end edge position of the connecting plate and the upper end edge position of the rear baffle. a bottom shell member formed with a bottom shell body fitted to a lower surface of the metal shell and extension wing portions formed by extending both sides of the bottom shell body outward; the bottom shell body is fitted to the lower surface of the metal shell, and fitting wing portions formed by extending both sides of the bottom shell body outward are stacked and combined with the extension wing portions in the up-and-down direction; a welding foot portion formed by extending both side edges of the connecting plate downward; an extension foot portion formed by extending a rear end edge of the extension wing portion rearward; a fitting welding foot portion formed by extending one side of the extension foot portion downward, the fitting welding foot portion being fitted to the welding foot portion in the left-and-right direction; a fixing foot portion formed by extending the other side of the extension foot portion upward, the fixing foot portion being inserted into a fixing groove formed by recessing a lower surface of the tail section upward.

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