Socket electrical connector

Abstract

The invention is a socket connector, which includes an insulating body arranged inside a shielding shell, a plurality of terminals arranged in the insulating body in a double-row pattern, and a grounding sheet arranged between the double-row terminals. The grounding sheet includes a through hole arranged on the front side of the tongue, and the through hole has a plurality of through portions and a communication portion between the through portions. The communication portion of the grounding sheet communicates the through portions to form an elongated through hole, thereby increasing the efficiency of the molding process of the tongue filled with plastic material.

Description

Technical Field

[0001] This invention relates to an electrical connector, and more particularly to a socket electrical connector. Background Technology

[0002] The common electrical connector interface is Universal Serial Bus (USB), which is widely used by the public. It has evolved from the USB 2.0 transmission standard to the current USB 3.0 transmission standard with faster transmission speed.

[0003] The appearance, structure, terminal contact method, number of terminals, pitch of each terminal, and pin assignment of existing USB Type-C electrical connectors are all completely different from those of current USB electrical connectors. When a user inserts the plug electrical connector into the socket electrical connector at an angle, the tongue inside the socket electrical connector is pushed and is easily damaged and broken. Summary of the Invention

[0004] This invention provides a socket connector, including a shielding shell, an insulating body, multiple terminals, and a grounding plate. The shielding shell includes a receiving groove. The insulating body is disposed in the receiving groove. The insulating body has a base and a tongue extending outward from one side of the base. The tongue has two sides, a front side, and two side sides. The front side is connected to the front edge of the two sides, and the two side sides are connected to the two side edges of the two sides. The multiple terminals are arranged in a double row on the insulating body. The multiple terminals include multiple contact segments, each contact segment being disposed on two sides of the tongue. The multiple terminals include multiple high-speed signal terminals, multiple low-speed signal terminals, multiple power terminals, and multiple grounding terminals. Each grounding terminal is located on both sides of each power terminal, each low-speed signal terminal is located between each power terminal, and the multiple high-speed signal terminals are located between adjacent power terminals and each grounding terminal. The grounding plate is located on the tongue and between multiple terminals in a double row. The grounding plate has protrusions on both sides, and the side ends of each protrusion are exposed on both sides of the tongue. The grounding plate includes a through hole, which has multiple through portions and a connecting portion. Each through hole is located on each protrusion and corresponds to the front end of the contact section of each high-speed signal terminal. The two sides of the connecting portion are connected to each through portion, and the connecting portion corresponds to the front end of the contact section of each low-speed signal terminal.

[0005] Preferably, the front ends of the contact sections of each high-speed signal terminal and the front ends of the contact sections of each low-speed signal terminal in the double row are shielded by grounding plates.

[0006] Preferably, the connecting portion has a groove inner diameter, and the grounding plate has a protrusion that extends toward the front side of the tongue to increase the width of the groove inner diameter.

[0007] Preferably, the end face of the protrusion is closer to the front side of the tongue than the end face of each contact segment of each power terminal.

[0008] Preferably, the end face of the protrusion and the end face of each contact segment of each power terminal are horizontal planes aligned with the same axis.

[0009] Preferably, each contact segment of the plurality of grounding terminals in the double row corresponds to each through portion, and each contact segment of the plurality of grounding terminals in the double row faces each other.

[0010] Preferably, the through hole has multiple bends, each bend being located between the through portion and the connecting portion, and each bend bending toward the base.

[0011] Preferably, the grounding plate has multiple recesses, each recess being located inside the through hole and corresponding to each bend. The inner side of the recess has a slot, which is narrow in the middle and gradually widens on both sides. The two sides of the slot are connected to the through hole and the connecting part, respectively.

[0012] Preferably, the front end of each protrusion is exposed on the front side of the tongue.

[0013] Preferably, the grounding plate has connecting portions on both sides, with each connecting portion located at the base.

[0014] In summary, according to some embodiments, a long through hole is formed by connecting multiple through portions of the grounding piece. When the grounding piece and the insulating body are embedded and molded in the mold, plastic material is processed and filled into the mold. The plastic material can be easily filled through the hollowed-out parts of the connecting portion and multiple through portions to form an integral tongue structure, which increases the efficiency of filling the plastic material and reduces the occurrence of incomplete molding where the tongue does not cover the contact section of each terminal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of a socket electrical connector based on some embodiments.

[0016] Figure 2 This is an exploded view of a socket connector based on some embodiments.

[0017] Figure 3 This is a side cross-sectional view of a socket connector based on some embodiments.

[0018] Figure 4 This is a schematic diagram of the appearance of the terminal module based on some embodiments.

[0019] Figure 5 This is a top view schematic diagram of the terminal module based on some embodiments.

[0020] Figure 6 It is based on Figure 5 A top-down view of a portion of the grounding plate, drawn from a specific perspective.

[0021] Figure 7 It is based on Figure 5 This is a top-down view of multiple terminals and grounding plates, with the protrusion of the grounding plate extending beyond the front end of the contact section of the power supply terminal.

[0022] Figure 8 It is based on Figure 5 The diagram is drawn from a top-down perspective, showing a partial view of multiple terminals and a grounding plate, with the protrusion of the grounding plate aligned with the front end of the contact section of the power terminal.

[0023] Symbol Explanation

[0024] 100: Socket electrical connector

[0025] 1: Shielding shell

[0026] 10: Receiving slot

[0027] 2: Insulating body

[0028] 21: Base

[0029] 22: Tongue slice

[0030] 22a: Face

[0031] 22b: Front side

[0032] 22c: Side view

[0033] 3:Terminal

[0034] 31: High-speed signal terminal

[0035] 32: Low-speed signal terminal

[0036] 33: Power terminals

[0037] 33a: End face

[0038] 34: Grounding terminal

[0039] 35: Contact section

[0040] 36: Connecting segment

[0041] 37: Welding section

[0042] 4: Grounding plate

[0043] 41: Protrusion

[0044] 42: Through hole

[0045] 421: Penetrating section

[0046] 422: Connecting parts

[0047] 422d: Inner diameter of the groove

[0048] 43:Protrusion

[0049] 43a: End face

[0050] 44: Bending section

[0051] 45: concave part

[0052] 451: Slot

[0053] 47: Connecting part

[0054] 8: First insulator

[0055] 9: Second insulator. Detailed Implementation

[0056] Reference Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the appearance of the socket connector 100. Figure 2 This is an exploded view of the receptacle connector 100. In some embodiments, the receptacle connector 100 conforms to the USB Type-C interface specification and includes a shielding shell 1, an insulating body 2, multiple terminals 3, and a grounding plate 4.

[0057] The shielding shell 1 is a hollow shell, and the interior of the shielding shell 1 includes a receiving groove 10.

[0058] The insulating body 2 is disposed in the receiving groove 10. The insulating body 2 has a base 21 and a tongue 22 extending outward from one side of the base 21. The tongue 22 has two surfaces 22a, a front surface 22b and two side surfaces 22c. The front surface 22b is connected to the front side of the two surfaces 22a, and the two side surfaces 22c are connected to the two side surfaces 22a.

[0059] Multiple terminals 3 are arranged in a double row on the insulating body 2 (e.g. Figure 3 As shown), the multiple terminals 3 include multiple contact segments 35, each contact segment 35 is respectively disposed on two sides 22a of the tongue 22. The multiple terminals 3 include multiple high-speed signal terminals 31, multiple low-speed signal terminals 32, multiple power terminals 33 and multiple ground terminals 34. Each ground terminal 34 is located on both sides of each power terminal 33, each low-speed signal terminal 32 is located between each power terminal 33, and the multiple high-speed signal terminals 31 are respectively located between each adjacent power terminal 33 and each ground terminal 34.

[0060] Grounding piece 4 is located on tongue piece 22 and is situated between multiple terminals 3 in a double row (e.g.) Figure 3As shown), the grounding plate 4 has protrusions 41 on both sides, and the side ends of each protrusion 41 are exposed on the two side surfaces 22c of the tongue plate 22. The grounding plate 4 includes a through hole 42, the through hole 42 has multiple through portions 421 and a connecting portion 422 (as shown). Figure 6 The grounding plate 4 shown has through portions 421 on both sides and a connecting portion 422 in the middle. The through portions 421 and the connecting portion 422 are slot-shaped through the grounding plate 4. Each through hole 42 is located at each protrusion 41 and corresponds to the front end of the contact section 35 of each high-speed signal terminal 31. The two sides of the connecting portion 422 are connected to each through portion 421. The connecting portion 422 corresponds to the front end of the contact section 35 of each low-speed signal terminal 32.

[0061] By connecting multiple through portions 421 through the connecting portion 422, when the grounding piece 4 and the insulating body 2 are embedded and formed in the mold, plastic material is processed and filled in the mold. The plastic material can easily pass through the hollowed-out parts of the connecting portion 422 and the multiple through portions 421 to fill and form the overall tongue piece 22 structure, which increases the efficiency of filling the plastic material and reduces the occurrence of incomplete molding where the tongue piece 22 does not cover each contact section 35.

[0062] In some embodiments, if the tongue 22 fails to cover the front ends of each contact segment 35, the plastic material cannot smoothly pass through the opening of the connecting portion 422 (possibly because the area of ​​the connecting portion 422 is too small) to fill and mold the tongue 22 structure. This reduces the efficiency of filling the plastic material, and the front ends of the contact segments 35 of each terminal 3 are exposed and not covered by the tongue 22. When the terminals of the plug connector mate with the contact segments 35 of the socket connector 100, the contact segments 35 may easily tilt upwards above the tongue 22 and fail to properly mate, or the contact segments 35 may easily come into contact with each other due to tilting, causing a short circuit.

[0063] Please see Figure 3 , Figure 4 , Figure 3 This is a side sectional view of the socket connector 100. Figure 4 This is a schematic diagram of the terminal module. In some embodiments, the front ends of each protrusion 41 are exposed on the front side 22b of the tongue 22. The front ends of the protrusions 41 on both sides of the grounding piece 4 extend toward the front side 22b of the tongue 22. The front ends and sides of each protrusion 41 are exposed on the front end and sides of the tongue 22, respectively, increasing the structural strength of the tongue 22. When the plug connector is not inserted into the socket connector 100 in the correct orientation, for example, when the plug connector is tilted and mated to the socket connector 100, the protrusions 41 support the tongue 22 and abut against the plug connector, preventing the tongue 22 from being damaged or broken after the tilted plug connector hits it.

[0064] Please see Figure 2 and Figure 5 , Figure 5 This is a top view of the terminal module. The front ends of the contact sections 35 of each high-speed signal terminal 31 and each low-speed signal terminal 32 in the double rows are shielded by the grounding plate 4. The front ends of the contact sections 35 of each high-speed signal terminal 31 and each low-speed signal terminal 32 are not exposed through the through holes 42, ensuring that the front ends of the contact sections 35 of each high-speed signal terminal 31 and each low-speed signal terminal 32 do not face each other. The grounding plate 4 shields the contact sections 35 of the opposite high-speed signal terminals 31 and low-speed signal terminals 32 in the upper and lower rows, preventing crosstalk problems caused by signal interference.

[0065] Please see Figure 6 , Figure 7 , Figure 6 This is a partial top view of the grounding plate. Figure 7 This is a partial top view of multiple terminals 3 and a grounding plate 4. The protrusion 43 of the grounding plate 4 protrudes beyond the front end of the contact section 35 of the power terminal 33. In some embodiments, the connecting portion 422 has a groove inner diameter 422d, and the grounding plate 4 has a protrusion 43 that extends toward the front side 22b of the tongue 22, thereby increasing the width of the groove inner diameter 422d. The increased width of the groove inner diameter 422d facilitates the filling of the tongue 22 structure with plastic material through the cutouts in the connecting portion 422, increasing the efficiency of plastic material filling.

[0066] Please see Figure 6 , Figure 7 In some embodiments, the end face 43a of the protrusion 43 is closer to the front side 22b of the tongue 22 than the end face 33a of each contact segment 35 of each power terminal 33, thereby increasing the width of the inner diameter 422d of the groove of the protrusion 43.

[0067] Please see Figure 8 , Figure 8 This is a partial top view of multiple terminals 3 and a grounding plate 4. The protrusion 43 of the grounding plate 4 is flush with the front end of the contact section 35 of the power terminal 33. In some embodiments, the end face 43a of the protrusion 43 and the end face 33a of each contact section 35 of each power terminal 33 are horizontal planes flush with each other on the same axis (e.g., Figure 8 (The end face 43a and end face 33a shown are at the same level). The distance between the front end of the protrusion 43 and the front side 22b of the tongue 22 is equal to the distance between the front end of each contact segment 35 of each power terminal 33 and the front side 22b of the tongue 22.

[0068] Please see Figures 5 to 7In some embodiments, each contact segment 35 of the plurality of grounding terminals 34 in the double rows corresponds to each through-hole 421, and each contact segment 35 of the plurality of grounding terminals 34 in the double rows corresponds to the slot formed in each through-hole 421. Each contact segment 35 of the plurality of grounding terminals 34 in the double rows is not blocked by the grounding plate 4, and each contact segment 35 of the plurality of grounding terminals 34 in the double rows faces each other. Plastic material can be easily filled through the slots formed in each through-hole 421 to form the integral tongue 22 structure, increasing the efficiency of plastic material filling.

[0069] Please see Figures 5 to 7 In some embodiments, the through hole 42 on the grounding plate 4 is a hole formed by stamping a groove, and the through hole 42 has multiple bends 44, such as Figure 6 The bending portion 44 shown is generally trapezoidal, and each bending portion 44 is located between each through portion 421 and the connecting portion 422. Each bending portion 44 bends toward the base portion 21.

[0070] Please see Figure 6 In some embodiments, the grounding piece has a plurality of recesses 45, each recess 45 being located inside the through hole 42 and corresponding to each bend 44. The recess 45 has a slot 451 inside, the slot 451 being narrow in the middle and gradually widening on both sides, the two sides of the slot 451 being connected to the through hole 421 and the connecting part 422 respectively.

[0071] In some embodiments, with the front side 22b of the tongue 22 as a reference plane, the front ends of the contact segments 35 of the plurality of power terminals 33 and the plurality of ground terminals 34 in the double rows are close to the front side 22b, while the front ends of the contact segments 35 of the plurality of high-speed signal terminals 31 and the plurality of low-speed signal terminals 32 in the double rows are far from the front side 22b (e.g., Figure 5 (As shown). The front end of each contact segment 35 of each terminal 3 is covered by a tongue 22 (as shown). Figure 3 As shown), one side surface of each contact segment 35 is exposed on both sides 22a of the tongue 22.

[0072] See Figure 2 and Figure 3 In some embodiments, multiple terminals 3 in the upper row are inserted into the first insulator 8, multiple terminals 3 in the lower row are inserted into the second insulator 9, the grounding piece 4 is assembled on the second insulator 9, the first insulator 8 and the second insulator 9 are then combined, and then the insulating body 2 is combined with the first insulator 8 and the second insulator 9.

[0073] See Figure 2 and Figure 4In some embodiments, multiple high-speed signal terminals 31 are formed into two groups and are respectively located on both sides of multiple low-speed signal terminals 32. Each ground terminal 34 is located on both sides of multiple power terminals 33, and multiple low-speed signal terminals 32 are located between multiple power terminals 33. The multiple high-speed signal terminals 31 in the two groups of the same row are respectively located between adjacent power terminals 33 and ground terminals 34.

[0074] See Figures 2 to 4 In some embodiments, the plurality of terminals 3 located on one side 22a of the tongue 22 have four high-speed signal terminals 31 and two low-speed signal terminals 32, and the plurality of terminals 3 located on the other side 22a of the tongue 22 also have four high-speed signal terminals 31 and two low-speed signal terminals 32. The plurality of terminals 3 located on one side 22a of the tongue 22 have two power terminals 33 and two ground terminals 34, and the plurality of terminals 3 located on the other side 22a of the tongue 22 also have two power terminals 33 and two ground terminals 34. In some embodiments, the area of ​​the grounding plate 4 is lengthened and widened to cover the entire tongue 22, increasing the strength of the tongue 22. The grounding plate 4 protrudes from both sides of the tongue 22, providing a latching mechanism for the plug connector, preventing the latching springs on both sides of the plug connector from rubbing against the sides of the tongue 22 and causing wear on the tongue 22.

[0075] See figure Figure 5 In some embodiments, the grounding piece 4 has connecting portions 47 on both sides, and each connecting portion 47 is located in the base 21. The grounding piece 4 is connected to the material strip through the connecting portions 47, and each connecting portion 47 is not located in the area of ​​the tongue piece 22.

[0076] See Figure 2 and Figure 3 In some embodiments, the shielding shell 1 is composed of a multi-piece structure, including an inner shell and a cover plate. The inner shell is an annular wall structure and is fitted onto the outside of the insulating body 2. The cover plate is fitted onto the outside of the inner shell, but this is not a limitation. In some embodiments, the shielding shell 1 may be a one-piece structure.

[0077] See Figure 2 and Figure 3 In some embodiments, the plurality of terminals 3 include connecting segments 36 and soldering segments 37. Each connecting segment 36 is respectively disposed on the first insulator 8 and the second insulator 9. Each contact segment 35 extends from one side of each connecting segment 36 and is located on two sides 22a of the tongue 22. Each soldering segment 37 extends from the other side of each connecting segment 36 and passes through the rear side of the first insulator 8 and the second insulator 9. Each soldering segment 37 is used for both horizontal pins (Surface Mount Technology, SMT) and vertical pins (Dual In-line Package, DIP).

[0078] See Figure 2 and Figure 3 In some embodiments, Figure 2 The multiple terminals 3 shown in the top row, arranged from left to right, are as follows: ground terminal 34 (Gnd), the first pair of high-speed signal terminals 31 (TX1+-, differential signal terminals, used to transmit high-speed signals), power terminal 33 (Power / VBUS), function detection terminal (CC1, used to detect reversible insertion and identify the cable), a pair of low-speed signal terminals 32 (D+-, differential signal terminals, used to transmit low-speed signals), expansion terminal (SBU1, which can be added for other uses), power terminal 33 (Power / VBUS), the second pair of high-speed signal terminals (RX2+-, differential signal terminals, used to transmit high-speed signals), and ground terminal 34 (Gnd). These twelve terminals 3 in the top row are designed to transmit USB 3.0 signals.

[0079] See Figure 2 and Figure 3 In some embodiments, Figure 2 The lower row of terminals 3, arranged from right to left, consists of: ground terminal 34 (Gnd), a first pair of high-speed signal terminals 31 (TX2+-, differential signal terminals for transmitting high-speed signals), power terminal 33 (Power / VBUS), a function detection terminal (CC2, used to detect reversible insertion and identify the cable), a pair of low-speed signal terminals 32 (D+-, differential signal terminals for transmitting low-speed signals), an expansion terminal (SBU2, which can be defined for other uses), power terminal 33 (Power / VBUS), a second pair of high-speed signal terminals 31 (RX1+-, differential signal terminals for transmitting high-speed signals), and ground terminal 34 (Gnd). These twelve terminals in the lower row are designed to accommodate USB 3.0 signals.

[0080] In some embodiments, the grounding plate 4 has multiple pins, each pin extending downwards from both sides of the rear of the grounding plate 4 as a DIP-type pin. In some embodiments, the grounding plate 4 provides isolation between the multiple pins 3 of the double rows when the plug connector and the socket connector 100 are transmitting signals, thereby improving the problem of crosstalk signal interference. The pins of the grounding plate 4 are connected to the circuit board for conduction and grounding. The grounding plate 4 is located on the tongue 22, thereby improving the structural strength of the tongue 22 itself.

[0081] In summary, according to some embodiments, a long through hole is formed by connecting multiple through portions of the grounding piece. When the grounding piece and the insulating body are embedded and molded in the mold, plastic material is processed and filled into the mold. The plastic material can be easily filled through the hollowed-out parts of the connecting portion and multiple through portions to form an integral tongue structure, which increases the efficiency of filling the plastic material and reduces the occurrence of incomplete molding where the tongue does not cover the contact section of each terminal.

Claims

1. A socket electrical connector, characterized in that: A shielding enclosure, including a receiving groove; An insulating body is disposed in the receiving groove. The insulating body has a base and a tongue extending outward from one side of the base. The tongue has two sides, a front side and two side sides. The front side is connected to the front edge of the two sides, and the two side sides are connected to the two side edges of the two sides. Multiple terminals are arranged in a double row on the insulating body. Each terminal includes multiple contact segments, which are respectively disposed on two sides of the tongue. Each terminal includes multiple high-speed signal terminals, multiple low-speed signal terminals, multiple power terminals, and multiple ground terminals. Each ground terminal is located on both sides of each power terminal, each low-speed signal terminal is located between each power terminal, and each high-speed signal terminal is located between adjacent power terminals and ground terminals. as well as A grounding plate is located on a tongue and between the terminals in a double row. The grounding plate has a protrusion on each side, with the side ends of each protrusion exposed on the two sides of the tongue. The grounding plate includes a through hole with multiple through portions and a connecting portion. Each through hole is located on each protrusion and corresponds to the front end of the contact segment of each high-speed signal terminal. The connecting portion connects to each through portion on both sides and corresponds to the front end of the contact segment of each low-speed signal terminal. The through hole has multiple bends located between each through portion and the connecting portion, and each bend bends towards the base. The grounding plate has multiple recesses located inside the through hole and corresponding to each bend. A slot is located inside each recess, with both sides of the slot connecting to the through portions and the connecting portion. The connecting portion of the grounding plate connects to the multiple through portions to form an elongated through hole.

2. The socket electrical connector according to claim 1, characterized in that: The front ends of the contact segments of each of the high-speed signal terminals in the double row and the front ends of the contact segments of each of the low-speed signal terminals are shielded by the grounding plate.

3. The socket electrical connector according to claim 1 or 2, characterized in that: The connecting portion has a groove inner diameter, and the grounding plate has a protrusion that extends toward the front side of the tongue to increase the width of the groove inner diameter.

4. The socket electrical connector according to claim 3, characterized in that: One end face of the protrusion is closer to the front side of the tongue than one end face of each contact segment of each of the power terminals.

5. The socket electrical connector according to claim 3, characterized in that: One end face of the protrusion and one end face of each contact segment of each of the power terminals are horizontal planes aligned with the same axis.

6. The socket electrical connector according to claim 1 or 2, characterized in that: Each contact segment of the grounding terminals in the double row corresponds to each through portion, and each contact segment of the grounding terminals in the double row faces each other.

7. The socket electrical connector according to claim 1, characterized in that: The slot is narrow in the middle and gradually widens on both sides.

8. The socket electrical connector according to claim 1 or 2, characterized in that: The front end of each of the protrusions is exposed on the front side of the tongue.

9. The socket electrical connector according to claim 1 or 2, characterized in that: The grounding plate has a connecting portion on each side, and each connecting portion is located on the base.

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