Socket electrical connector

Abstract

The invention is a socket connector, which includes an insulating body arranged inside a shielding shell, a plurality of terminals and a grounding sheet arranged on the insulating body. The plurality of terminals are arranged in a double-row pattern on the insulating body. The grounding sheet is arranged between the double-row of the plurality of terminals. The grounding sheet includes a first through hole, a plurality of second through holes and a plurality of communication holes. The first through hole and each of the second through holes are communicated by the plurality of communication holes of the grounding sheet. The efficiency of the molding process of the tongue piece filled with the plastic material is increased.

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, and the insulating body has a base and a tongue extending outward from one side of the base. The multiple terminals are arranged in a double row on the insulating body, and 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, each protrusion being exposed on both sides of the tongue. The grounding plate includes a first through hole, multiple second through holes, and multiple connecting holes. The first through hole corresponds to multiple low-speed signal terminals. Each second through hole is located on each protrusion and corresponds to the contact section of each power terminal and the contact section of each ground terminal. Each connecting hole is located between adjacent power terminals and high-speed signal terminals and connects the first through hole and each second through hole.

[0005] Preferably, a portion of the contact segment of each high-speed signal terminal adjacent to each power terminal is exposed in the connecting hole.

[0006] Preferably, the grounding plate has multiple recesses, each recess being located on the side of each connecting hole, and the contact segments of each high-speed signal terminal adjacent to each power terminal are exposed in the recesses.

[0007] Preferably, each protrusion located outside the second through hole is shielded between the relative contact sections of the multiple grounding terminals in the double row.

[0008] Preferably, each protrusion located at the inner end of each second through hole is shielded between the relative contact sections of the multiple high-speed signal terminals in the double row.

[0009] Preferably, each protrusion has a turning portion, each turning portion is located inside the second through hole, each protrusion has a recessed portion, and the front end of the contact section of each power terminal is located in the recessed portion.

[0010] Preferably, the tongue has a front side and two side sides, the front side is connected to the front edge of the two sides, the two side sides are connected to the two side edges of the two sides, the outer side of each protrusion protrudes from the two side sides, and the front end of each protrusion protrudes from the front side.

[0011] Preferably, each connecting hole has a connected vertical segment and a horizontal segment, with each horizontal segment connected to a first through hole and each vertical segment connected to a second through hole.

[0012] In summary, according to some embodiments, the grounding plate connects the first through hole and each of the second through holes with multiple connecting holes. When processing and molding the insulating body, the plastic material can be conveniently filled through the hollowed-out parts of each connecting hole to form the overall 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

[0013] Figure 1 This is a schematic diagram of the appearance of a socket electrical connector based on some embodiments.

[0014] Figure 2 This is an exploded view of a socket connector based on some embodiments.

[0015] Figure 3 This is a side cross-sectional view of a socket connector based on some embodiments.

[0016] Figure 4 This is a schematic diagram of the appearance of the terminal module based on some embodiments.

[0017] Figure 5 This is a top view schematic diagram of the terminal module based on some embodiments.

[0018] Figure 6 It is based on Figure 5 The diagram is drawn from a perspective based on some embodiments, and is a partial top view of the grounding plate.

[0019] Figure 7 It is based on Figure 5This is a top-down view of multiple terminals and grounding plates, drawn from a specific perspective.

[0020] Figure 8 It is based on Figure 5 This is a top-down view of multiple terminals and a grounding plate, with recesses on both sides of the grounding plate.

[0021] Symbol Explanation

[0022] 100: Socket electrical connector

[0023] 1: Shielding shell

[0024] 10: Receiving slot

[0025] 2: Insulating body

[0026] 21: Base

[0027] 22: Tongue slice

[0028] 22a: Face

[0029] 22b: Front side

[0030] 22c: Side view

[0031] 3:Terminal

[0032] 31: High-speed signal terminal

[0033] 32: Low-speed signal terminal

[0034] 33: Power terminals

[0035] 34: Grounding terminal

[0036] 35: Contact section

[0037] 36: Connecting segment

[0038] 37: Welding section

[0039] 4: Grounding plate

[0040] 41: Protrusion

[0041] 411: Turning point

[0042] 42: First through hole

[0043] 43: Second through hole

[0044] 43a: outer edge

[0045] 43b: Inner side

[0046] 43c: Inner end

[0047] 44: Connecting hole

[0048] 441: Straight Section

[0049] 442: Transverse segment

[0050] 45: concave part

[0051] 46: Inward section

[0052] 47: Connecting part

[0053] 8: First insulator

[0054] 9: Second insulator. Detailed Implementation

[0055] 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 socket connector 100. Preferably, the socket 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.

[0056] Reference Figure 2 and Figure 3 , Figure 3 This is a side cross-sectional view of the socket connector 100. The shielding shell 1 is a hollow shell, and the interior of the shielding shell 1 includes a receiving groove 10. The insulating body 2 is disposed in the receiving groove 10, and the insulating body 2 has a base 21 and a tongue 22 extending outward from one side of the base 21. Multiple terminals 3 are arranged in a double row on the insulating body 2. 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 (e.g., ...). Figure 5 As shown), each low-speed signal terminal 32 is located between each power supply terminal 33, and multiple high-speed signal terminals 31 are located between each adjacent power supply terminal 33 and each ground terminal 34.

[0057] The grounding plate 4 is located on the tongue plate 22 and is situated between multiple terminals 3 in a double row. The grounding plate 4 has protrusions 41 on both sides, each protrusion 41 exposed on both sides of the tongue plate 22. The grounding plate 4 includes a first through hole 42, multiple second through holes 43, and multiple connecting holes 44. The first through hole 42 corresponds to multiple low-speed signal terminals 32 (such as...). Figure 7As shown), each second through hole 43 is located between each protrusion 41 and between the contact section 35 of each power terminal 33 and the contact section 35 of each ground terminal 34. Each connecting hole 44 is located between each adjacent power terminal 33 and each high-speed signal terminal 31 and connects the first through hole 42 and each second through hole 43.

[0058] The first through hole 42 and each of the second through holes 43 are connected by multiple connecting holes 44. The first through hole 42, the multiple second through holes 43 and the multiple connecting holes 44 form a through hole. A through hole is like... Figure 6 The shape shown is an inverted Y-shape. When the grounding piece 4 and the insulating body 2 are embedded and formed in the mold, plastic material is processed and filled into the mold. The plastic material can easily pass through the hollowed-out holes of the first through hole 42, multiple second through holes 43 and multiple connecting holes 44 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.

[0059] See Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the terminal module's appearance. Figure 5 This is a top view of the terminal module. Preferably, the tongue 22 has a front side 22b and two side sides 22c. The front side 22b is connected to the front edge of the two sides 22a, and the two side sides 22c are connected to the two side edges of the two sides 22a. The front ends of each protrusion 41 protrude from the front side 22b. However, this is not a limitation. Preferably, the front ends of each protrusion 41 can be located inside the tongue 22 and do not protrude from the front side 22b.

[0060] See Figure 4 Preferably, the front ends of the protrusions 41 on both sides of the grounding piece 4 extend toward the front side 22b of the tongue piece 22, and the front ends and sides of each protrusion 41 are exposed on the front end and sides of the tongue piece 22, respectively, increasing the structural strength of the tongue piece 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 tongue piece 22 is supported by the protrusions 41, and the protrusions 41 abut against the plug connector, preventing the tongue piece 22 from being damaged or broken after the tilted plug connector hits it.

[0061] See Figure 5 and Figure 6 , Figure 6 This is a partial top view of the grounding plate 4. Preferably, each connecting hole 44 has a connected vertical section 441 and a horizontal section 442, such as... Figure 6The grounding plate 4 shown in the top view has a vertical section 441 and a horizontal section 442 on the left side that are L-shaped and rotated 90 degrees. Each horizontal section 442 is connected to the first through hole 42, and each vertical section 441 is connected to the second through hole 43.

[0062] See Figure 2 and Figure 7 , Figure 7 This is a partial top view of multiple terminals 3 and a grounding plate 4. Preferably, the first through hole 42, multiple second through holes 43, and multiple connecting holes 44 on the grounding plate 4 are holes formed by stamping grooves. Under high-frequency signal interference testing conditions, a portion of the contact section 35 of each high-speed signal terminal 31 adjacent to each power terminal 33 is exposed in the connecting hole 44, and the grounding plate 4 blocks the partial contact sections 35 of each high-speed signal terminal 31 in the upper and lower rows (e.g., Figure 7 As shown, the right partial contact section 35 of one of the high-speed signal terminals 31 on the right side of the upper right row is exposed in the connecting hole 44, and the left partial contact section 35 of one of the high-speed signal terminals 31 on the left side of the upper right row is exposed in the connecting hole 44, which can avoid crosstalk problems caused by high-frequency signal interference.

[0063] See Figure 8 , Figure 8 This is a partial top view of multiple terminals 3 and a grounding plate 4. The grounding plate 4 has recesses 45 on both sides. Preferably, the grounding plate 4 has multiple recesses 45, each recess 45 being located on the side of a connecting hole 44. The addition of the recesses 45 to the connecting hole 44 increases the width of the recess. Under high-frequency signal interference testing, the entire contact section 35 of each high-speed signal terminal 31 adjacent to each power terminal 33 is exposed in the recess 45 (e.g., ...). Figure 8 As shown, the contact segment 35 of the rightmost high-speed signal terminal 31 of the upper right group of high-speed signal terminals 31 is exposed in the connecting hole 44, and the contact segment 35 of the leftmost high-speed signal terminal 31 of the upper right group of high-speed signal terminals 31 is exposed in the connecting hole 44. This can meet the low frequency requirements and avoid crosstalk problems caused by high frequency signal interference.

[0064] Preferably, the relative contact sections 35 of each of the double-row grounding terminals 34 are shielded from each other by the grounding plate 4 (e.g., Figure 7 As shown, the entire contact section 35 of each of the two grounding terminals 34 on the left and right sides of the upper row corresponds to the protrusion 41 and is not exposed in the second through hole 43. Due to the shielding of the grounding piece 4, the relative contact sections 35 of the two rows of grounding terminals 34 are not face to face. The protrusions 41 located on the outer side 43a of each second through hole 43 are shielded between the relative contact sections 35 of the multiple grounding terminals 34 in the two rows.

[0065] Preferably, the front ends of each contact segment 35 of each high-speed signal terminal 31 in the double row are shielded from each other by the grounding plate 4 (e.g., Figure 7 As shown, the contact segments 35 of the two high-speed signal terminals 31 on the left and right sides of the upper row are located inside the second through holes 43, with only the front end of the contact segment 35 of the right high-speed signal terminal 31 of the left group exposed in the second through hole 43, and only the front end of the contact segment 35 of the left high-speed signal terminal 31 of the right group exposed in the second through hole 43. The protrusions 41 located at the inner end 43c of each second through hole 43 shield the relative contact segments 35 of the multiple high-speed signal terminals 31 in the double rows. Due to the shielding of the grounding piece 4, the relative contact segments 35 of the multiple high-speed signal terminals 31 in the double rows are not face-to-face. The contact segments 35 of the opposing high-speed signal terminals 31 in the upper and lower rows are shielded by the protrusions 41.

[0066] See Figure 6 Preferably, each protrusion 41 has a turning portion 411, and each turning portion 411 is located on the inner side 43b of each second through hole 43, such as... Figure 7 The front end of the contact section 35 of each power terminal 33 shown is located on the side of the bend 411.

[0067] Please see Figure 7 Preferably, each protrusion 41 has a recessed portion 46 between it, and the front end of the contact section 35 of each power terminal 33 is located in the recessed portion 46. The recessed portion 46 is located between each protrusion 41 and corresponds to the plurality of power terminals 33. The recessed portion 46 is concave inward toward the base 21 (e.g., Figure 5 As shown), the front ends of each power terminal 33 located on the two sides 22a of the tongue 22 are respectively opposite to each other via the recess of the inward portion 46 (as shown). Figure 7 (As shown). 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 be easily filled through the hollow part of the inner recess 46 to form the integral 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 the front end of each contact section 35.

[0068] Preferably, if the tongue 22 fails to cover the front end of each contact segment 35, resulting in incomplete molding, the plastic material cannot smoothly pass through the cutout of the recessed portion 46 (possibly due to the small size of the recessed portion 46) to fill and mold the tongue 22 structure. This reduces the efficiency of plastic material filling, 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 lift up above the tongue 22, preventing proper mating, or they may come into contact with each other due to lifting, causing a short circuit.

[0069] Please see Figure 5 Preferably, with the front side 22b of the tongue 22 as the reference plane, the front ends of the contact segments 35 of the multiple power terminals 33 and multiple ground terminals 34 in the double row are close to the front side 22b, and the front ends of the contact segments 35 of the multiple high-speed signal terminals 31 and multiple low-speed signal terminals 32 in the double row 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.

[0070] See Figure 2 and Figure 3 Preferably, the upper row of multiple terminals 3 are embedded in the first insulator 8, the lower row of multiple terminals 3 are embedded in 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.

[0071] See Figure 2 and Figure 4 , Figure 4 This is a schematic diagram of the terminal module. Preferably, multiple high-speed signal terminals 31 are arranged in two groups and 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 located between adjacent power terminals 33 and adjacent ground terminals 34.

[0072] See Figures 2 to 4 Preferably, the plurality of terminals 3 located on one side 22a of the tongue 22 have 4 high-speed signal terminals 31 and 2 low-speed signal terminals 32, and the plurality of terminals 3 located on the other side 22a of the tongue 22 also have 4 high-speed signal terminals 31 and 2 low-speed signal terminals 32. The plurality of terminals 3 located on one side 22a of the tongue 22 have 2 power terminals 33 and 2 ground terminals 34, and the plurality of terminals 3 located on the other side 22a of the tongue 22 also have 2 power terminals 33 and 2 ground terminals 34. Preferably, the area of ​​the grounding piece 4 is lengthened and widened to be distributed throughout the entire tongue 22, thereby increasing the strength of the tongue 22. The grounding piece 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.

[0073] See figure Figure 5Preferably, 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 connects 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.

[0074] See Figure 2 and Figure 3 Preferably, 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. Preferably, the shielding shell 1 can be a one-piece structure.

[0075] See Figure 2 and Figure 3 Preferably, 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 horizontal pins (Surface Mount Technology, SMT) and vertical pins (Dual In-line Package, DIP).

[0076] See Figure 2 and Figure 3 Preferably, 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.

[0077] See Figure 2 and Figure 3 Preferably, Figure 2The 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.

[0078] Preferably, 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. Preferably, 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.

[0079] In summary, according to some embodiments, when the grounding plate connects the first through hole and each of the second through holes to form the insulating body, the plastic material can be easily filled through the hollowed-out parts of each through hole to form the overall 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 having a base and a tongue extending outward from one side of the base; 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 the tongue and between the terminals in the double row. The grounding plate has a protrusion on each side, and each protrusion is exposed on both sides of the tongue. The grounding plate includes a first through hole, a plurality of second through holes, and a plurality of connecting holes. The first through hole corresponds to each of the low-speed signal terminals. Each of the second through holes is located on each of the protrusions and corresponds to the contact section of each of the power terminals and the contact section of each of the ground terminals. Each of the connecting holes is located between adjacent power terminals and high-speed signal terminals and connects the first through hole and each of the second through holes. The grounding plate has a plurality of recesses, each of the recesses is located on the side of each of the connecting holes, and the contact section of each high-speed signal terminal adjacent to each of the power terminals is exposed in the recess.

2. The socket electrical connector according to claim 1, characterized in that: A portion of the contact segment adjacent to each of the high-speed signal terminals of each of the power terminals is exposed in the communication hole.

3. The socket electrical connector according to claim 1 or 2, characterized in that: Each of the protrusions located on the outer side of one of the second through holes is shielded between the opposite contact segments of each of the two rows of grounding terminals.

4. The socket electrical connector according to claim 1 or 2, characterized in that: Each of the protrusions located at the inner end of one of the second through holes is shielded between the opposite contact segments of each of the double rows of high-speed signal terminals.

5. The socket electrical connector according to claim 2, characterized in that: Each of the protrusions has a turning portion, each of the turning portions is located on the inner side of one of the second through holes, and each of the protrusions has a recessed portion, with the front end of the contact segment of each power terminal located in the recessed portion.

6. The socket electrical connector according to claim 1 or 2, characterized in that: The tongue has 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 outer side of each protrusion protrudes from the two side sides, and the front end of each protrusion protrudes from the front side.

7. The socket electrical connector according to claim 1 or 2, characterized in that: Each of the connecting holes has a connected vertical segment and a horizontal segment, each of the horizontal segments is connected to the first through hole, and each of the vertical segments is connected to each of the second through holes.

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