Socket connector

Abstract

The utility model discloses a socket connector. The socket connector comprises an insulating body, a plurality of conductive terminals and a metal shell, the insulating body is provided with a main body and a tongue plate extending forwards from the main body, the tongue plate is provided with a front section and a rear section, the conductive terminal is provided with a contact part and a welding part, the contact part is exposed on the upper surface or the lower surface of the front section, and the welding part extends out of the main body. The metal shell is provided with a substrate and a lantern ring part extending forwards from the substrate, the lantern ring part is in a front-back through barrel shape, and the lantern ring part is arranged outside the periphery of the rear section in a surrounding mode and attached to the peripheral face of the rear section. According to the socket connector provided by the utility model, the metal shell is provided with the lantern ring part which can be in contact with the butting plug, so that the anti-electromagnetic interference function of the metal shell can be realized, and the socket connector is easier to manufacture.

Description

Technical Field

[0001] The utility model relates to an electric connector, in particular to a socket connector. Background Art

[0002] A Universal Serial Bus (USB) interface connector is a commonly used electrical connector. It is widely used by the public due to its smaller size and portability, and is commonly found in various portable electronic products.

[0003] The existing USB Type-C receptacle connector includes an insulating body, a number of terminals, a grounding plate and a shell. The insulating body includes a base and a tongue extending forward from the front side of the base. The terminals are divided into two rows, upper and lower, and fixed in the insulating body. The front contact portion of each terminal is exposed on the upper or lower surface of the tongue, and the rear end of each terminal passes through the base to be soldered to the circuit board. The grounding plate is embedded in the insulating body and can contact the docking plug connector to achieve the function of electromagnetic interference protection. The shell covers the outside of the insulating body and can also reduce electromagnetic interference. Among them, the grounding plate is generally a steel plate, which is embedded in the insulating body by embedding molding. However, this process is complicated, costly, and unstable. It is easy to have problems such as the steel plate being coated with glue or not being fully molded, and the steel plate and plastic being easy to fall off.

[0004] It is necessary to improve the existing electrical connectors mentioned above. Utility Model Content

[0005] The utility model provides a socket connector which can prevent electromagnetic interference and is easy to manufacture.

[0006] Specifically, the present invention is realized through the following technical solutions: a socket connector, which includes an insulating body, a plurality of conductive terminals and a metal shell, the insulating body is provided with a main body and a tongue plate extending forward from the main body, the tongue plate is provided with a front section and a rear section, the conductive terminal is provided with a contact portion and a welding portion, the contact portion is exposed on the upper surface or lower surface of the front section, the welding portion extends out of the main body, the metal shell is provided with a base plate and a ring portion extending forward from the base plate, the ring portion is in the shape of a cylinder passing through from front to back, the ring portion is arranged around the four sides of the rear section and fits the outer peripheral surface of the rear section.

[0007] In a preferred embodiment, the collar portion is completely located on the rear side of the front section.

[0008] In a preferred embodiment, the collar portion completely covers the periphery of the rear section.

[0009] In a preferred embodiment, a notch is provided on the front edge of the collar portion.

[0010] In a preferred embodiment, the base plate is in the shape of an upright plate, a groove is provided on the rear side of the base plate, the front end of the main body extends into the groove, and the front section of the tongue plate passes through the groove and the ring portion to expose the metal shell.

[0011] In a preferred embodiment, the metal shell is made by metal powder injection molding technology.

[0012] In a preferred embodiment, it further includes a back cover arranged outside the main body, the back cover has a top wall, side walls extending downward from both sides of the top wall and a back wall extending backward from the top wall, and the front side edges of the side walls are provided with side wings abutting the substrate.

[0013] In a preferred embodiment, the top surface of the main body is provided with a sunken surface, the sunken surface is provided with a buckling groove, the top wall covers the sunken surface and is further provided with a buckling arm inserted into the buckling groove.

[0014] In a preferred embodiment, the socket connector is a Type C connector.

[0015] The metal shell of the socket connector of the utility model is provided with a collar portion, which can be in contact with the docking connector to be grounded to achieve the function of preventing electromagnetic interference, and has a simple structure and is easy to manufacture.

[0016] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional assembly diagram of an electrical connector in one embodiment of the present utility model;

[0018] Figure 2 and Figure 1 Similar, taken from another angle;

[0019] Figure 3 for Figure 2 A partially exploded perspective view of the electrical connector shown;

[0020] Figure 4 and Figure 1 An exploded perspective view of the electrical connector shown.

[0021] Description of reference numerals:

[0022] Socket connector 100, insulating body 1, main body 11, front face 111, recessed face 112, stop face 113, latching groove 114, tongue plate 12, front section 121, rear section 122, conductive terminal 2, contact portion 21, soldering portion 22, metal shell 3, base plate 31, groove 311, extension portion 32, locking hole 321, collar portion 33, rear cover 4, top wall 41, latching arm 411, side wall 42, grounding leg 421, side wing 422, rear wall 43, latch structure 5. DETAILED DESCRIPTION

[0023] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present invention. Rather, they are merely examples of devices, systems, apparatus, and methods consistent with certain aspects of the present invention.

[0024] refer to Figures 1 to 4 As shown, the present invention's receptacle connector 100 conforms to the USB Type-C interface specification and can be used with electronic products such as mobile communication devices, laptops, and digital cameras. Receptacle connector 100 comprises an insulating body 1, a plurality of conductive terminals 2, a metal shell 3, and a rear cover 4. The conductive terminals 2 are secured to the insulating body 1, while the metal shell 3 and rear cover 4 extend beyond the insulating body 1 to provide protection against electromagnetic interference.

[0025] The insulating body 1 is formed of plastic injection molding and includes a main body 11 and a tongue plate 12 extending forward from the main body. The tongue plate 12 has a front section 121 and a rear section 122, with the rear section 122 connected to the main body 11. The upper and lower surfaces of the front section 121 of the tongue plate 12 are provided with a plurality of terminal slots (not numbered) for exposing the conductive terminals 2. The rear section 122 of the tongue plate 12 has a relatively flat outer peripheral surface, and the thickness of the rear section 122 is greater than that of the front section 121. The receptacle connector 100 also includes two metal snap-fit ​​structures 5 embedded in the insulating body 1 and exposed on either side of the front section 121 of the tongue plate 12, respectively, for snap-fit ​​connection with a mating plug (not shown).

[0026] During the injection molding process of the insulating body 1, a plurality of conductive terminals 2 are fixed to the insulating body 1 in two rows, one above the other. The conductive terminals 2 include contact portions 21, soldering portions 22, and connecting portions (not shown) connecting the contact portions 21 and the soldering portions 22. The contact portions 21 are located within a terminal slot (not numbered) and are exposed on the upper or lower surface of the front section 121 of the tongue plate 12. The soldering portions 22 extend rearwardly and downwardly from the body 11 for soldering to a circuit board (not shown).

[0027] The metal shell 3 is made using Metal Powder Injection Molding Technology (MIM) and comprises a base plate 31, extensions 32 located on either side of the base plate 31, and a collar portion 33 extending forward from the base plate 31. The base plate 31 is in the shape of an upright plate. The main body 11 is provided with a front end face 111 located behind the tongue plate 12. A groove 311 is formed on the rear side of the base plate 31. The front end of the main body 11 extends into and is positioned within the groove 311, with the front end face 111 abutting against the bottom surface of the groove 311. The extension 32 is in the shape of a horizontal plate and is provided with a locking hole 321. The collar portion 33 is in the shape of a cylinder extending from front to back and is disposed outside the rear section 122 of the tongue plate 12. When the receptacle connector 100 is mated with a docking plug (not shown), the plug's EMC (electromagnetic compatibility) spring (not shown) contacts the collar portion 33, achieving grounding and electromagnetic interference protection. The metal shell 3 is directly formed with a collar portion 33 that can contact a mating plug (not shown), thereby realizing the metal shell 3's electromagnetic interference protection function and simplifying the structure of the receptacle connector 100, making it easier to manufacture.

[0028] The length of the collar portion 33 is substantially the same as that of the rear section 122 of the tongue plate 12, and the collar portion 33 completely surrounds the rear section 122. The width and height of the internal space of the collar portion 33 are also substantially the same as the width and thickness of the rear section 122, that is, the collar portion 33 substantially conforms to the outer surface of the rear section 122. The collar portion 33 is completely located behind the front section 121 of the tongue plate 12 to prevent interference with the terminals (not shown) of the mating plug (not shown), which could affect the normal operation of the receptacle connector 100. A notch 331 is also provided at the front edge of the collar portion 331, allowing for observation of the assembly position of the rear section 122 during assembly.

[0029] The rear cover 4 is formed by punching and bending a metal sheet and comprises a top wall 41, two side walls 42 extending downward from either side of the top wall 41, and a rear wall 43 bent downward from the top wall 41. The top surface of the main body 11 of the insulating housing 1 is formed with a sunken surface 112 and a stop surface 113 located in front of the sunken surface 112. The top wall 41 covers the sunken surface 112 and abuts against the stop surface 113 forward. The side walls 42 cover the side surfaces of the main body 11, and the rear wall 43 covers the rear end surface of the main body 11. The main body 11 is provided with a retaining groove 114 recessed downward from the sunken surface 112. The top wall 41 is provided with a retaining arm 411 inserted into the retaining groove 114 to securely secure the rear cover 4 to the main body 11. The bottom edges of the two side walls 42 are provided with grounding pins 421 , and the front edges of the two side walls 42 are each provided with a side wing 422 that bends and extends outwards. The side wing 422 abuts against the base plate 31 of the metal shell 3 , so that the metal shell 3 is grounded through the back cover 4 .

[0030] During assembly, the insulating body 1 is first injection molded onto the conductive terminals 2. The metal shell 3 is then placed over the insulating body 1 from front to back. The tongue 12 extends through the groove 311 into the collar portion 33. The front section 121 of the tongue 12 further extends out of the collar portion 33 to expose the metal shell 3. Finally, the rear cover 4 is placed over the main body 11 of the insulating body 1 from back to front.

[0031] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A receptacle connector comprising an insulating body, a plurality of conductive terminals, and a metal shell, wherein the insulating body comprises a main body and a tongue extending forward from the main body, the tongue comprising a front section and a rear section, the conductive terminals comprising a contact portion and a soldering portion, the contact portion being exposed on the upper or lower surface of the front section, and the soldering portion extending beyond the main body, characterized in that: The metal shell is provided with a base plate and a collar portion extending forward from the base plate. The collar portion is in a cylindrical shape penetrating front to back. The collar portion is arranged around the four sides of the rear section and fits the outer peripheral surface of the rear section.

2. The socket connector according to claim 1, wherein: The collar portion is completely located on the rear side of the front section.

3. The socket connector according to claim 2, wherein: The collar portion completely covers the periphery of the rear section.

4. The socket connector according to claim 3, wherein: A notch is provided on the front edge of the collar portion.

5. The socket connector according to claim 1, wherein: The base plate is in the shape of an upright plate. A groove is provided on the rear side of the base plate. The front end of the main body extends into the groove. The front section of the tongue plate passes through the groove and the collar portion to expose the metal shell.

6. The socket connector according to claim 5, wherein: The metal shell is made by metal powder injection molding technology.

7. The socket connector according to claim 1, wherein: It also includes a back cover arranged outside the main body, the back cover is provided with a top wall, side walls extending downward from both sides of the top wall and a back wall extending backward from the top wall, and the front side edges of the side walls are provided with side wings abutting the base plate.

8. The socket connector according to claim 7, wherein: The top surface of the main body is provided with a sunken surface, the sunken surface is provided with a buckling groove, the top wall covers the sunken surface and is further provided with a buckling arm inserted into the buckling groove.

9. The socket connector according to claim 7, wherein: It is a type C connector.

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