Socket electric connector

Abstract

The utility model relates to a socket electric connector, which comprises an insulating main body, a plurality of socket terminals arranged on the insulating main body, an annular shell and a shielding shell, the insulating body comprises a base, a tongue piece and a hollow part located between the base and the tongue piece. The tongue piece is provided with a step part adjacent to the base. The shielding shell covers the annular shell and the hollow part, and a glue pouring space is formed in the hollow part. The annular shell is sleeved on the tongue piece to cover the periphery of the step part, an electromagnetic compatibility function is provided, and when the plug electric connector is inserted into the socket electric connector, the plug electric connector is contacted with the annular shell to avoid colliding with the base of the insulation main body.

Description

Technical Field

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

[0002] The transmission interface specifications of electrical connectors are quite diverse. For example, Universal Serial Bus (USB) is widely used by the public and has evolved from the USB 2.0 transmission specification to the current USB 3.0 transmission specification with a faster transmission speed.

[0003] The appearance, structure, terminal contact method, number of terminals, distance (Pitch) between each terminal, and distribution (Pin Assignment) of each terminal of the existing USB Type-C electrical connector socket are completely different from those of the current USB electrical connector. The current USB Type-C socket electrical connector includes a plurality of flat terminals provided on a plastic core, and structures such as a plurality of inner iron shells and an outer iron shell are covered outside the plastic core; however, the plurality of inner iron shells are divided into upper and lower two-piece types and are arranged above and below the tongue of the plastic core. When the USB Type-C electrical connector socket plugs into the USB Type-C electrical connector plug, the upper and lower two-piece inner iron shells are prone to the problem of PIN warping, resulting in the USB Type-C electrical connector plug being unable to be normally inserted into the USB Type-C electrical connector socket. Summary of the Utility Model

[0004] A socket electrical connector provided by the utility model includes an insulating body, a plurality of socket terminals, an annular shell, and a shielding shell. The insulating body includes a base, a tongue, and a hollowed-out portion. The tongue is located on one side of the base, and the hollowed-out portion is located between the base and the tongue. The tongue has a stepped portion adjacent to the base. The plurality of socket terminals are arranged on the base and the tongue. Each socket terminal includes a contact section, a connection section, and a welding section. Each contact section extends from one side of each connection section and is located on both sides of the tongue. Each welding section extends from the other side of each connection section and penetrates out of the other side of the base. Each connection section penetrates through the base and the tongue and is exposed outside the hollowed-out portion. The annular shell includes a first ring member and a second ring member formed by drawing. The first ring member is sleeved on the tongue to cover the periphery of the tongue, and the second ring member is sleeved on the stepped portion to cover the periphery of the stepped portion. The shielding shell includes a receiving groove and an insertion opening communicating with the receiving groove. The insulating body is arranged in the receiving groove, and the shielding shell covers the annular shell and the hollowed-out portion to form a potting space at the hollowed-out portion.

[0005] Preferably, the inner diameter of the first ring member is smaller than the inner diameter of the second ring member. The outer wall of the second ring member contacts the inner wall of the shielding shell. The annular shell includes a side surface located between the first ring member and the second ring member. The side surface is located in the receiving groove and faces the insertion opening.

[0006] Preferably, the socket electrical connector further includes a sealing body located in the potting space and filling the hollow portion, and the sealing body covers each connection segment located in the hollow portion.

[0007] Preferably, the surface of each connection segment of each socket terminal has a rough surface, and the sealing body contacts each rough surface.

[0008] Preferably, a plurality of socket terminals have a first row of terminals and a second row of terminals in a double-row type. The tongue piece and the base are separate components and are connected via two extension portions. The tongue piece has a first tongue piece rubber core for connecting the first row of terminals, a second tongue piece rubber core for connecting the second row of terminals, and a third tongue piece rubber core for connecting the first tongue piece rubber core and the second tongue piece rubber core. The base has a first base rubber core for connecting the first row of terminals, a second base rubber core for connecting the second row of terminals, and a third base rubber core for connecting the first base rubber core and the second base rubber core.

[0009] Preferably, the third tongue piece rubber core has a tongue piece ring convex portion. The potting space is located between the stepped portion and the base, and the tongue piece ring convex portion is located at the stepped portion and contacts the inner wall of the annular housing.

[0010] Preferably, the shielding housing has a plurality of welding points combined with the second ring member of the annular housing.

[0011] Preferably, the socket electrical connector further includes a waterproof gasket sleeved on the outside of the shielding housing and adjacent to the insertion port.

[0012] Preferably, the socket electrical connector further includes a fixing member combined with the outside of the shielding housing and adjacent to the insertion port, and the waterproof gasket is arranged on the fixing member.

[0013] Preferably, the socket electrical connector further includes a grounding piece located on the insulating body and between the plurality of socket terminals in a double row.

[0014] Due to the adoption of the above technical solutions, the utility model has the following beneficial effects:

[0015] 1. The annular housing is sleeved on the tongue piece and covers the periphery of the stepped portion, providing an electromagnetic compatibility (EMC) function. When the plug electrical connector is inserted into the socket electrical connector, the plug electrical connector contacts the annular housing to avoid colliding with the base of the insulating body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Illustrates a top perspective view of a socket electrical connector according to some embodiments.

[0017] Figure 2 Illustrates an exploded view of a socket electrical connector according to some embodiments, in a state where the hollow portion is not filled with a sealing body.

[0018] Figure 3 Shows an exploded view of a socket terminal, a ground plate, a three-piece rubber core, and a rear housing according to some embodiments.

[0019] Figure 4 Shows a top exploded view of a socket electrical connector according to some embodiments, in a state where the hollow portion is not filled with a sealing body.

[0020] Figure 5 Shows a top view of a socket electrical connector according to some embodiments.

[0021] Figure 6 Shows Figure 5 A cross-sectional view marked A-A, in a state where the hollow portion is not filled with a sealing body.

[0022] Figure 7 Shows Figure 5 A cross-sectional view marked A-A, in a state where the hollow portion is filled with a sealing body.

[0023] Figure 8 Shows Figure 5 A cross-sectional view marked B-B, in a state where the hollow portion is not filled with a sealing body.

[0024] Figure 9 Shows Figure 5 A cross-sectional view marked B-B, in a state where the hollow portion is filled with a sealing body.

[0025] Figure 10 Shows an external view of the bottom perspective of a socket electrical connector according to some embodiments.

[0026] Symbol Explanation

[0027] 100: Socket electrical connector

[0028] 1: Insulating body

[0029] 11: Base

[0030] 111: First base rubber core

[0031] 112: Second base rubber core

[0032] 113: Third base rubber core

[0033] 114: Extension

[0034] 12: Tongue

[0035] 121: First tongue rubber core

[0036] 122: Second tongue rubber core

[0037] 123: Third tongue rubber core

[0038] 125: Tongue piece ring convex part

[0039] 13: Hollowed-out part

[0040] 15: Step part

[0041] 2: Socket terminal

[0042] 2a: First row of terminals

[0043] 2b: Second row of terminals

[0044] 21: High-speed signal terminal

[0045] 22: Low-speed signal terminal

[0046] 23: Power supply terminal

[0047] 24: Grounding terminal

[0048] 25: Contact section

[0049] 26: Connection section

[0050] 261: Rough surface

[0051] 27: Welding section

[0052] 3: Grounding piece

[0053] 4: Shielding housing

[0054] 41: Outer shell

[0055] 42: Rear housing

[0056] 43: Accommodating groove

[0057] 44: Plug interface

[0058] 45: Potting space

[0059] 46: Welding point

[0060] 5: Ring-shaped housing

[0061] 5a: Side surface

[0062] 52: First ring part

[0063] 55: Second ring part

[0064] 7: Fixing part

[0065] 8: Waterproof gasket

[0066] 9: Sealing body. Detailed implementation manners

[0067] As used in the following embodiments, the term "connection" may be a physical connection, or refer to a direct or indirect connection between physical components. For a clearer description of this case, in the schematic diagrams provided in this case, the first axis X is the X-axis of the three-dimensional coordinate system, the second axis Y is the Y-axis of the three-dimensional coordinate system, and the third axis Z is the Z-axis of the three-dimensional coordinate system.

[0068] Referring to Figures 1 to 3 , Figure 1 is an external schematic view of the top perspective of the socket electrical connector 100, Figure 2 is an exploded view of the socket electrical connector 100, in the state where the hollow portion 13 is not filled with the sealing body 9, Figure 3 is an exploded view of the socket terminal 2, the ground plate 3, the three-piece rubber core and the rear housing 42. The socket electrical connector 100 is of the USB (Type-C) connection interface specification, but not limited thereto. In some embodiments, the socket electrical connector 100 may be of the HDMI connection interface specification. The socket electrical connector 100 includes an insulating body 1, a plurality of socket terminals 2, a shielding housing 4 and an annular housing 5.

[0069] The insulating body 1 includes a base 11, a tongue piece 12 and a hollow portion 13. The tongue piece 12 is located on one side of the base 11, and the hollow portion 13 is located between the base 11 and the tongue piece 12. The tongue piece 12 has a stepped portion 15. The stepped portion 15 is a long rectangular structure. The stepped portion 15 is located between the base 11 and the tongue piece 12. The hollow portion 13 is located between the stepped portion 15 and the base 11. The stepped portion 15 is adjacent to the base 11 and forms a gap therewith. This gap is the hollow portion 13. The hollow portion 13 is substantially formed by the disconnection between the stepped portion 15 and the base 11. The tongue piece 12 and the base 11 are separate components and are connected via two extension portions 114 located on both sides of the hollow portion 13. Each extension portion 114 is a side arm and extends along the third axis Z direction on both sides between the tongue piece 12 and the base 11. The width of the stepped portion 15 in the first axis X direction is greater than the width of the tongue piece 12 in the first axis X direction, and the width of the stepped portion 15 in the second axis Y direction is greater than the width of the tongue piece 12 in the second axis Y direction.

[0070] A plurality of socket terminals 2 are arranged on the base 11 and the tongue piece 12. Each socket terminal 2 includes a contact section 25, a connection section 26 and a welding section 27. Each contact section 25 extends from one side of each connection section 26 and is located on both sides of the tongue piece 12. Each welding section 27 extends from the other side of each connection section 26 and penetrates out of the other side of the base 11. Each connection section 26 penetrates through the base 11 and the tongue piece 12 and is exposed outside the hollow portion 13. In some embodiments, such as Figure 4As shown, the base 11 and the tongue piece 12 are separate plastic parts. The base 11 and the tongue piece 12 are connected by the connecting sections 26 of the socket terminals 2, and the exposed hollow parts 13 of the connecting sections 26 are exposed. In some embodiments, the multiple socket terminals 2 include multiple high-speed signal terminals 21, multiple low-speed signal terminals 22, multiple power terminals 23, and multiple ground terminals 24. Each ground terminal 24 is respectively located on two sides of each power terminal 23, each low-speed signal terminal 22 is located between each power terminal 23, and the multiple high-speed signal terminals 21 are respectively located between adjacent power terminals 23 and ground terminals 24.

[0071] The annular housing 5 includes a first ring member 52 and a second ring member 55 formed integrally by drawing. The first ring member 52 is sleeved on the tongue piece 12 to cover the periphery of the tongue piece 12, and the second ring member 55 is sleeved on the stepped portion 15 to cover the periphery of the stepped portion 15. The width of the second ring member 55 in the first axis X direction is greater than the width of the first ring member 52 in the first axis X direction, and the width of the second ring member 55 in the second axis Y direction is greater than the width of the first ring member 52 in the second axis Y direction.

[0072] The shielding housing 4 includes a receiving groove 43 and an insertion opening 44 communicating with the receiving groove 43. The insulating body 1 is disposed in the receiving groove 43. The shielding housing 4 covers the annular housing 5 and the hollow part 13 to form a potting space 45 in the hollow part 13 (as Figure 6 shown). Figure 8 The shielding housing 4 has an outer shell 41 and a rear housing 42. The rear housing 42 covers above the base 11, and the outer shell 41 is a hollow rectangular frame. The length of the shielding housing 4 is designed to be shortened so that the tongue piece 12 is exposed outside the insertion opening 44 (as Figure 1 shown), and one end of each socket terminal 2 is exposed outside the insertion opening 44 of the shielding housing 4. The outer shell 41 of the shielding housing 4 is intact without holes to prevent moisture from seeping in through the outer shell 41, which is suitable for waterproof and dustproof products.

[0073] In some embodiments, the socket electrical connector 100 further includes a fixing member 7 and a waterproof gasket 8. The fixing member 7 is coupled to the outside of the shielding housing 4 and adjacent to the insertion opening 44, and the waterproof gasket 8 is disposed on the fixing member 7. The waterproof gasket 8 is sleeved on the outside of the shielding housing 4 and adjacent to the insertion opening 44.

[0074] When the shielding housing 4 is assembled outside the insulating body 1, the opening at the side of the shielding housing 4 away from the insertion opening 44 is correspondingly covered around the hollow part 13. Then, after the socket electrical connector 100 is placed vertically (as Figure 8 shown), Figure 9 a potting operation can be performed in the hollow part 13 between the base 11 and the tongue piece 12 (to be described later).

[0075] Refer to Figure 2 shown), Figure 4 andFigure 5 , Figure 4 is a top-down exploded view of the socket electrical connector 100, showing the state where the hollow portion 13 is not filled with the sealing body 9. Figure 5 is a top view of the socket electrical connector 100. In some embodiments, the inner diameter of the first ring member 52 of the annular housing 5 is smaller than the inner diameter of the second ring member 55, and a stepped surface is formed between the first ring member 52 and the second ring member 55. The annular housing 5 includes a side surface 5a located between the first ring member 52 and the second ring member 55, and the side surface 5a extends along the second axis Y direction to connect between the first ring member 52 and the second ring member 55. When the annular housing 5 is assembled, first place the annular housing 5 into the outer housing 41 of the shielding housing 4, and laser weld the outer housing 41 and the annular housing 5 together, so that a plurality of welding points 46 are formed on the surface of the outer housing 41, and the outer wall of the second ring member 55 contacts the inner wall of the outer housing 41 of the shielding housing 4. Then, install the shielding housing 4 outside the insulating body 1, so that the annular housing 5 sleeves the tongue piece 12 and the stepped portion 15, and the side surface 5a of the annular housing 5 is located in the receiving groove 43 and faces the insertion port 44 (as Figure 8 shown). When the plug electrical connector is inserted into the socket electrical connector 100, the front end of the plug electrical connector will contact the side surface 5a of the annular housing 5. By means of the side surface 5a of the annular housing 5, the front end of the plug electrical connector is blocked, preventing the front end of the plug electrical connector from colliding with the insulating body 1 and preventing the insulating body 1 from being damaged by the collision.

[0076] In some embodiments, the socket electrical connector 100 further includes a sealing body 9 (to clearly show the location of the sealing body 9, in Figure 7 , Figure 9 , Figure 10 represented by an area with a plurality of dot distributions, and there is no such dot presentation in the actual product), the sealing body 9 is located in the potting space 45 and fills the hollow portion 13, and the sealing body 9 covers each connection segment 26 located in the hollow portion 13; please refer to Figures 6 to 9 , Figure 6 and Figure 8 are schematic views without filling the sealing body 9, Figure 7 and Figure 9 are schematic views of filling the sealing body 9. When the hollow portion 13 is filled with the sealing body 9, it can be processed on the socket electrical connector 100 placed vertically. Align and pour the sealing body 9 (liquid) from the opening on the side of the shielding housing 5 away from the insertion port 44. Then, the sealing body 9 (liquid) is dried and formed into a hardened sealing body 9 (gel block) structure. The sealing body 9 seals the gap between the connection segment 26 and the insulating body 1, and the sealing body 9 seals the gap between the annular housing 5, the shielding housing 4 and the stepped portion 15; the sealing body 9 is covered by the shielding housing 4 in the potting space 45 and only one side is exposed (such as the surface of the dot area shown in Figure 10 ), and the side surfaces of the sealing body 9 in the potting space 45 are not exposed.

[0077] In some embodiments, the insulating body 1 has a plurality of terminal slots, and a plurality of socket terminals 2 are located in the plurality of terminal slots and penetrate through the base 11 and the tongue piece 12. However, the implementation of the present technology is not limited to the above structure. In some embodiments, a waterproof socket electrical connector 100 is applied in which the insulating body 1 and the plurality of socket terminals 2 are combined in an integrally molded manner. The integrally molded technology, whether it is insert-molding, over-molding, a combination of the two technologies, or other molding technologies, does not depart from the scope of protection of this patent. In some embodiments, when the insulating body 1 does not have a plurality of terminal slots, the plurality of socket terminals 2 directly penetrate through the base 11 and the tongue piece 12. However, because of the heating factor during the processing of the waterproof socket electrical connector 100, such as heating in a solder reflow oven, a gap will be generated between the terminal made of metal material and the insulating body 1 made of plastic material due to the different thermal expansion coefficients of the two, thus failing to achieve a good waterproof effect. Therefore, for the waterproof socket electrical connector 100 in which the insulating body 1 and the plurality of socket terminals 2 are integrally molded, a sealing body 9 also needs to be formed in the potting space 45, and the sealing body 9 fills the gaps between the various structures.

[0078] In some embodiments, the surfaces of the connecting segments 26 of each socket terminal 2 are plated with a coating. Before the sealing body 9 is poured into the hollow portion 13, the coating on the surfaces of the connecting segments 26 is first processed and removed to form a rough surface 261 on the surfaces of the connecting segments 26 ( Figure 4 For example, only two surfaces of the connecting segments 26 show a rough shape with irregular multiple points, and the actual rough shape is not limited to this). Then, after the sealing body 9 is poured into the hollow portion 13, the sealing body 9 closely contacts the rough surface 261, improving the bonding effect between the surfaces of the connecting segments 26 and the sealing body 9.

[0079] Refer to Figure 3 , in some embodiments, the plurality of socket terminals 2 have a double-row type of first row terminals 2a and second row terminals 2b. The tongue piece 12 has a first tongue piece rubber core 121 for connecting the first row terminals 2a, a second tongue piece rubber core 122 for connecting the second row terminals 2b, and a third tongue piece rubber core 123 for connecting the first tongue piece rubber core 121 and the second tongue piece rubber core 122. The base 11 has a first base rubber core 111 for connecting the first row terminals 2a, a second base rubber core 112 for connecting the second row terminals 2b, and a third base rubber core 113 for connecting the first base rubber core 111 and the second base rubber core 112.

[0080] Refer to Figure 3 and Figure 4, in some embodiments, the first tongue core 121 and the first base core 111 are defined as the first core, and the first tongue core 121 and the first base core 111 are combined with the first row of terminals 2a through a processing procedure to form the first terminal module; the second tongue core 122 and the second base core 112 are defined as the second core, and the second tongue core 122 and the second base core 112 are combined with the second row of terminals 2b through a processing procedure to form the second terminal module; the third tongue core 123 and the third base core 113 are defined as the third core, and the first terminal module and the second terminal module are combined with the third tongue core 123 and the third base core 113 through a processing procedure. The third tongue core 123 has a tongue ring convex part 125 located at the step part 15, and the tongue ring convex part 125 is a rib structure. When the annular housing 5 is assembled with the third tongue core 123 and the step part 15, the inner wall of the second ring part 55 of the annular housing 5 contacts the tongue ring convex part 125.

[0081] Refer to Figure 3 , in some embodiments, multiple socket terminals 2 in the upper row are injection molded with the first base core 111 and the first tongue core 121, and multiple socket terminals 2 in the lower row are injection molded with the second base core 112 and the second tongue core 122. Then, the third base core 113 is molded outside the first base core 111 and the second base core 112, and the third tongue core 123 is molded outside the first tongue core 121 and the second tongue core 122 to form the insulating body 1.

[0082] Refer to Figure 3 , in some embodiments, the socket electrical connector 100 further includes a grounding piece 3, the grounding piece 3 is located in the insulating body 1, and the grounding piece 3 is between the multiple socket terminals 2 in the double row; the grounding piece 3 and the multiple socket terminals 2 in the lower row are molded on the second tongue core 122 and the second base core 112.

[0083] Refer to Figure 3 , in some embodiments, both sides of the grounding piece 3 include hook structures protruding from both sides of the tongue piece 12. The hook structures provide contact for the plug electrical connector, and the hooks on both sides of the plug electrical connector will respectively latch onto each hook structure, which can prevent the hooks on both sides of the plug electrical connector from rubbing against both sides of the tongue piece 12 and causing wear of the tongue piece 12. In some embodiments, the grounding piece 3 is arranged on the tongue piece 12 to improve the strength and shielding effect of the tongue piece 12. When multiple contact segments 25 are transmitting signals, the problem of crosstalk signal interference can be improved through the isolation of the grounding piece 3. At the same time, the structural strength of the tongue piece 12 itself can also be enhanced by the grounding piece 3 located on the tongue piece 12.

[0084] In summary, according to some embodiments, the annular housing is sleeved on the tongue piece to cover the periphery of the stepped portion, providing an Electromagnetic Compatibility (EMC) function. When the plug electrical connector is inserted into the socket electrical connector, the plug electrical connector contacts the annular housing to avoid hitting the base of the insulating body.

Claims

1. A socket electrical connector, characterized in that : An insulating body, comprising a base, a tongue and a hollow portion, wherein the tongue is located at one side of the base, the hollow portion is located between the base and the tongue, and the tongue has a step portion, and the step portion is adjacent to the base; A plurality of socket terminals are disposed on the base and the tongue, each of the socket terminals comprises a contact section, a connecting section and a welding section, each of the contact sections extends from one side of each of the connecting sections and is located on two sides of the tongue, each of the welding sections extends from the other side of each of the connecting sections and passes through the other side of the base, each of the connecting sections passes through the base and the tongue and is exposed at the hollow portion; An annular housing, comprising a first ring member and a second ring member formed by drawing, wherein the first ring member is sleeved on the tongue piece to cover the periphery of the tongue piece, and the second ring member is sleeved on the step portion to cover the periphery of the step portion; and A shielding shell includes a receiving groove and an insertion interface connected to the receiving groove, the insulating body is arranged in the receiving groove, and the shielding shell covers the annular shell and the hollow part to form a glue-filling space in the hollow part.

2. The socket electrical connector according to claim 1, characterized in that :The inner diameter of the first ring member is smaller than the inner diameter of the second ring member, the outer wall of the second ring member contacts the inner wall of the shielding shell, and the annular shell includes a side surface located between the first ring member and the second ring member, and the side surface is located in the accommodating groove and faces the plug interface.

3. The socket electrical connector according to claim 1, characterized in that : It also includes a sealing body, which is located in the glue filling space and fills the hollow part, and the sealing body covers each of the connecting sections located in the hollow part.

4. The socket electrical connector according to claim 3, characterized in that : The surface of each connecting section of each socket terminal has a rough surface, and the sealing body contacts each rough surface.

5. The socket electrical connector according to claim 1, characterized in that : Each of the socket terminals has a first row of terminals and a second row of terminals in a double-row type. The tongue and the base are phase-separated elements and are connected via two extension portions. The tongue has a first tongue rubber core combined with the first row of terminals, a second tongue rubber core combined with the second row of terminals, and a third tongue rubber core combined with the first tongue rubber core and the second tongue rubber core. The base has a first base rubber core combined with the first row of terminals, a second base rubber core combined with the second row of terminals, and a third base rubber core combined with the first base rubber core and the second base rubber core.

6. The socket electrical connector according to claim 5, characterized in that :The third tongue rubber core has a tongue ring protrusion, the glue pouring space is located between the step portion and the base, and the tongue ring protrusion is located on the step portion and contacts the inner wall of the annular shell.

7. The socket electrical connector according to claim 1, characterized in that The shielding shell has a plurality of welding points connected with the second ring member of the annular shell.

8. The socket electrical connector according to claim 1, characterized in that : It also includes a waterproof gasket, which is sleeved on the outside of the shielding shell and adjacent to the plug port.

9. The socket electrical connector according to claim 8, characterized in that : It also includes a fixing piece, which is combined with the outside of the shielding shell and adjacent to the plug port, and the waterproof gasket is arranged on the fixing piece.

10. The socket electrical connector according to claim 1, characterized in that : It also includes a grounding plate, which is located on the insulating body and between each of the double rows of socket terminals.

Images