Socket electrical connector

Abstract

The invention is a socket connector comprising a plurality of terminals and a grounding sheet in an insulating body, the plurality of terminals are arranged in a double-row pattern in the insulating body, and the grounding sheet is located in a tongue of the insulating body and between the plurality of terminals in the double-row pattern; the grounding sheet has a body and a plurality of extending portions, each extending portion extends outward from the body and corresponds to each protruding portion of each terminal respectively, and the distance between each protruding portion and each extending portion is shorter than the distance between each contact section and each extending portion. The protruding portion of each terminal and the extending portion of the grounding sheet have a certain holding distance, which increases the current resistance specification and eliminates the risk of short circuit caused by the too close distance between the terminal and the grounding sheet.

Description

Technical Field

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

[0002] The interface of general electrical connectors 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. The terminals of USB Type-C socket electrical connectors are thinner, making it difficult to improve the current withstand specifications. If the thickness of the terminals is changed, the distance between them and the grounding plate will be too close, which may lead to poor withstand voltage and short circuit risks. Summary of the Invention

[0004] This invention provides a socket connector, including an insulating body, multiple terminals, and a grounding plate. 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, each terminal including multiple contact segments and multiple connecting segments. Each connecting segment is disposed on the base, each contact segment is exposed on two sides of the tongue, each terminal has a protrusion, each protrusion is located at the end of each contact segment and extends into the tongue, each contact segment has a first thickness, and each protrusion has a second thickness. The grounding plate is located on the tongue and between the multiple terminals in the double row. The grounding plate has a body and multiple extensions, each extension extending outward from the body and corresponding to each protrusion of each terminal, each extension has a third thickness, and the body has a fourth thickness. The third thickness is less than the fourth thickness, the distance between each protrusion and each extension is shorter than the distance between each contact segment and each extension, and there is a holding gap between each protrusion and each extension.

[0005] Preferably, the plurality of terminals includes a plurality of high-speed signal terminals, a plurality of low-speed signal terminals, at least one power terminal and at least one ground terminal, with each ground terminal located on both sides of each power terminal, each low-speed signal terminal located between each power terminal, and the plurality of high-speed signal terminals located between each adjacent power terminal and each ground terminal, with each extension extending outward from the body corresponding to each protrusion of each high-speed signal terminal.

[0006] Preferably, the grounding piece has a boundary portion located between each extension and the body and corresponding to each contact segment, and the surface of each extension and the surface of the body are located on different planes.

[0007] Preferably, the thickness between the two sides of the tongue is 0.7 mm, the first thickness is between 0.1 mm and 0.12 mm, the first thickness is greater than the second thickness, and the spacing is between 0.1 mm and 0.2 mm.

[0008] Preferably, the spacing is maintained between 0.12 mm and 0.18 mm.

[0009] This invention provides a socket connector, including an insulating body, multiple terminals, and a grounding plate. The insulating body has 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 including multiple contact segments and multiple connecting segments. Each connecting segment is disposed at the base, and each contact segment is exposed on two sides of the tongue. Each terminal has a protrusion located at the end of each contact segment and extending into the tongue. Each contact segment has a first thickness, and each protrusion has a second thickness. The grounding plate is located on the tongue and between the multiple terminals in the double row. The grounding plate has a body and multiple extensions. Each extension extends outward from the body and corresponds to each protrusion of each terminal. Each extension has a third thickness, and the body has a fourth thickness. The third thickness is equal to the fourth thickness. The distance between each protrusion and each extension is shorter than the distance between each contact segment and each extension. A holding gap exists between each protrusion and each extension.

[0010] Preferably, the surface of each extension is located on the same plane as the surface of the main body.

[0011] In summary, according to some embodiments, multiple terminals are provided with grounding plates between them within a predetermined tongue thickness. This ensures a certain spacing between the protrusions of each terminal and the extension of the grounding plate, increasing current withstand capability and preventing the terminals from being too close to the grounding plate, which could lead to poor withstand voltage and short circuit risks. Preferably, the extension of the grounding plate corresponds to the protrusions of each high-speed signal terminal to avoid high-frequency signal interference. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the appearance of a socket electrical connector based on some embodiments; Figure 2 This is a schematic diagram showing the appearance of multiple terminals and grounding plates based on some embodiments; Figure 3 This is a schematic diagram of the appearance of a grounding piece based on some embodiments; Figure 4 This is a top view diagram of multiple terminals and grounding plates based on some embodiments; Figure 5 This is a top view schematic diagram of a socket electrical connector based on some embodiments; Figure 6 It is based on Figure 5A cross-sectional view of the AA lead wire; Figure 7 It is based on Figure 6 A magnified view of the area selected by C; Figure 8 It is based on Figure 7 A partially enlarged schematic diagram of another embodiment from a certain perspective; and Figure 9 It is based on Figure 5 A cross-sectional view of the BB lead wire.

[0013] Symbol Explanation 100: Socket electrical connector 1: Insulating body 11: Base 12: Tongue slice 12a: Face 2:Terminal 21: High-speed signal terminal 22: Low-speed signal terminal 23: Power terminals 24: Grounding terminal 25: Contact section 251: Protrusion 26: Connecting segment 27: Welding Section 3: Grounding plate 31:Ontology 32: Extension 33: Boundary section D1' / D1'': First thickness D2' / D2'': Second thickness D3' / D3'': Third thickness D4: Fourth Thickness W' / W'': Maintain spacing. Detailed Implementation

[0014] 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 a schematic diagram showing the appearance of multiple terminals 2 and a grounding plate 3. In some embodiments, the receptacle connector 100 conforms to the USB Type-C interface specification, which uses a connection interface specification with high-frequency signals from the terminals 2. However, this is not a limitation; in some embodiments, a connection interface specification with terminals 2 that do not receive high-frequency signals may be used. The receptacle connector 100 includes an insulating body 1, multiple terminals 2, and a grounding plate 3.

[0015] The insulating body 1 has a base 11 and a tongue 12 extending outward from one side of the base 11.

[0016] Multiple terminals 2 are arranged in a double row on the insulating body 1 (e.g. Figure 6 and Figure 9 As shown), the multiple terminals 2 include multiple contact segments 25 and multiple connecting segments 26. Each connecting segment 26 is respectively disposed on the base 11. Each contact segment 25 is exposed on two surfaces 12a of the tongue 12. Each terminal 2 has a protrusion 251, which is located at the end of each contact segment 25 and extends into the tongue 12. Each contact segment 25 has a first thickness D1' (e.g., ...). Figure 7 As shown), each protrusion 251 has a second thickness D2'.

[0017] Reference Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the appearance of grounding piece 3. Figure 4 This is a top view of multiple terminals 2 and a grounding plate 3. In some embodiments, the grounding plate 3 is located on the tongue 12 and is positioned between multiple terminals 2 in two rows (e.g., ...). Figure 6 and Figure 7 As shown), the grounding plate 3 has a body 31 and a plurality of extensions 32. Each extension 32 extends outward from the body 31 and corresponds to a protrusion 251 of each terminal 2. Each extension 32 has a third thickness D3' (as shown). Figure 7 As shown), the body 31 has a fourth thickness D4, the third thickness D3' is smaller than the fourth thickness D4, the distance between each protrusion 251 and each extension 32 is shorter than the distance between each contact segment 25 and each extension 32, and there is a holding gap W' between each protrusion 251 and each extension 32.

[0018] Reference Figure 1 and Figure 2 In some embodiments, the plurality of terminals 2 include a plurality of high-speed signal terminals 21, a plurality of low-speed signal terminals 22, at least one power terminal 23, and at least one ground terminal 24. Each ground terminal 24 is located on both sides of each power terminal 23, each low-speed signal terminal 22 is located between each power terminal 23, and the plurality of high-speed signal terminals 21 are located between adjacent power terminals 23 and ground terminals 24. Each extension 32 extends outward from the body 31 and corresponds to a protrusion 251 of each high-speed signal terminal 21. In some embodiments, the thickness between the two surfaces 12a of the tongue 12 is 0.7 mm (e.g., ...). Figure 7 (As shown).

[0019] Within a predetermined tongue 12 thickness (e.g., 0.7 mm), multiple terminals 2 and grounding plates 3 are positioned within the limited tongue 12 thickness to ensure a certain holding distance W' between the protrusion 251 of each terminal 2 and the extension 32 of the grounding plate 3 (e.g., ...). Figure 7 As shown, for example, maintaining a spacing of 0.12mm to 0.18mm) to increase current withstand specifications and prevent the distance between terminal 2 and grounding plate 3 from being too close, which could cause poor withstand voltage and short circuit risk.

[0020] In some embodiments, the protrusions 251 of each terminal 2 extend into the tongue 12 for fixation, thereby preventing the contact segments 25 of each terminal 2 from lifting up and detaching from the tongue 12.

[0021] In some embodiments, the plurality of terminals 2 are formed by blanking, and the first thickness D1' of each contact segment 25 of the plurality of terminals 2 is 0.1mm to 0.12mm, and the holding distance W' is 0.1mm to 0.2mm. In some embodiments, the holding distance W' is 0.12mm to 0.18mm, and in some embodiments, the holding distance W' is 0.15mm. If the plurality of terminals 2 adopt a thicker first thickness D1', the current withstand specification can be increased. If the contact segment 25 of the plurality of terminals 2 adopts a thicker first thickness D1', during the processing of the protrusion 251, the protrusion 251 is bent toward the extension 32, reducing the distance between the protrusion 251 and the extension 32. If the holding distance W' between the protrusion 251 and the extension 32 is too close (e.g. Figure 7 (The reduced spacing W' shown may pose risks of poor withstand voltage and short circuit.) In some embodiments, the plurality of high-speed signal terminals 21, the plurality of low-speed signal terminals 22, at least one power supply terminal 23, and at least one ground terminal 24 may all have a thicker first thickness D1'. In some embodiments, the thickness of the at least one power supply terminal 23 is greater than the thickness of the plurality of high-speed signal terminals 21, the plurality of low-speed signal terminals 22, and the at least one ground terminal 24. In some embodiments, the first thickness D1' is greater than the second thickness D2'.

[0022] Reference Figure 7 In some embodiments, the extension 32 is processed into a flat shape (flattening process) so that the third thickness D3' of the extension 32 of the grounding piece 3 is less than the fourth thickness D4 of the body 31 of the grounding piece 3. The extension 32 of the grounding piece 3 corresponds to each protrusion 251 of each high-speed signal terminal 21 to avoid high-frequency signal interference.

[0023] Reference Figure 7In some embodiments, the grounding piece 3 has a boundary portion 33, which is located between each extension portion 32 and the body 31 and corresponds to each contact segment 25. The surface of each extension portion 32 and the surface of the body 31 are located on different planes, and the surface of each extension portion 32 and the surface of the body 31 form a height difference.

[0024] Reference Figure 8 , Figure 8 for Figure 7 This is a partially enlarged schematic diagram of another embodiment from a different perspective. In some embodiments, the contact segments 25 of each terminal 2 are used with a smaller thickness, and the terminals 2 are processed into a flat shape (flattening process). Each contact segment 25 has a first thickness D1''. Figure 8 The first thickness D1'' is less than Figure 7 The first thickness D1' of the grounding plate 32 does not need to be flattened. The surface of each extension 32 is on the same plane as the surface of the body 31. There must be a certain holding distance W'' between the protrusion 251 of each terminal 2 and the extension 32 of the grounding plate 3 (for example, a holding distance of 0.12mm to 0.18mm) to increase the current withstand specification and prevent the distance between the terminal 2 and the grounding plate 3 from being too close, which could cause poor withstand voltage and short circuit risk. In some embodiments, the third thickness D3'' of the extension 32 of the grounding plate 3 is equal to the fourth thickness D4 of the body 31 of the grounding plate 3, and the first thickness D1'' is greater than the second thickness D2''. Figure 8 The second thickness D2'' is less than Figure 7 The second thickness D2'.

[0025] In some embodiments, the socket connector 100 includes a shielding shell, which is a hollow shell, and the interior of the shielding shell includes a receiving groove, and the insulating body 1 is disposed in the receiving groove.

[0026] In some embodiments, the front ends of each contact segment 25 of each high-speed signal terminal 21 in the double row are shielded from each other by the grounding plate 3 (e.g., Figure 2 As shown, the contact segments 25 of the two high-speed signal terminals 21 on the left and right sides of the upper and lower rows correspond to the respective extensions. Due to the shielding of the grounding piece 3, the relative contact segments 25 of the multiple high-speed signal terminals 21 in the double rows are not facing each other.

[0027] Please see Figure 5 In some embodiments, with the front side 22b of the tongue 12 as a reference plane, the front ends of the contact segments 25 of the plurality of power terminals 23 and the plurality of ground terminals 24 in the double rows are close to the front side 22b, while the front ends of the contact segments 25 of the plurality of high-speed signal terminals 21 and the plurality of low-speed signal terminals 22 in the double rows are far from the front side 22b. The front ends of the contact segments 25 of each terminal 2 are covered by the tongue 12 (e.g., Figure 5 , Figure 7As shown), one side surface of each contact segment 25 is exposed on both sides 22a of the tongue 12.

[0028] See Figure 2 and Figure 4 , Figure 4 This is a schematic diagram of the terminal module. In some embodiments, multiple high-speed signal terminals 21 are formed into two groups and are respectively located on both sides of multiple low-speed signal terminals 22. Each ground terminal 24 is located on both sides of multiple power terminals 23, and multiple low-speed signal terminals 22 are located between multiple power terminals 23. The multiple high-speed signal terminals 21 in the two groups in the same row are respectively located between adjacent power terminals 23 and ground terminals 24.

[0029] See Figures 2 to 4 In some embodiments, the plurality of terminals 2 located on one side 22a of the tongue 12 have four high-speed signal terminals 21 and two low-speed signal terminals 22, and the plurality of terminals 2 located on the other side 22a of the tongue 22 have four high-speed signal terminals 21 and two low-speed signal terminals 22. The plurality of terminals 2 located on one side 22a of the tongue 12 have two power terminals 23 and two ground terminals 24, and the plurality of terminals 2 located on the other side 22a of the tongue 12 have two power terminals 23 and two ground terminals 24.

[0030] See Figures 2 to 4 In some embodiments, the grounding piece 3 protrudes from the tongue 12, providing a latch for the plug connector, preventing the latch spring of the plug connector from rubbing against the tongue 12 and causing wear on the tongue 12.

[0031] See Figure 2 and Figure 3 In some embodiments, the plurality of terminals 2 include connecting segments 26 and soldering segments 27. Each connecting segment 26 is disposed on the base. Each contact segment 25 extends from one side of each connecting segment 26 and is located on two sides 22a of the tongue 12. Each soldering segment 27 extends from the other side of each connecting segment 26 and passes through the rear side of the base. Each soldering segment 27 is a horizontal lead (Surface Mount Technology, SMT).

[0032] See Figures 2 to 4 In some embodiments, Figure 2The top row of terminals 2, arranged from left to right, consists of: ground terminal 24 (Gnd), a first pair of high-speed signal terminals 21 (TX1+-, differential signal terminals for transmitting high-speed signals), power terminal 23 (Power / VBUS), a function detection terminal (CC1, used to detect reversible insertion and identify the cable), a pair of low-speed signal terminals 22 (D+-, differential signal terminals for transmitting low-speed signals), an expansion terminal (SBU1, which can be added for other uses), power terminal 23 (Power / VBUS), a second pair of high-speed signal terminals (RX2+-, differential signal terminals for transmitting high-speed signals), and ground terminal 24 (Gnd). These twelve terminals 2 in the top row are designed to transmit USB 3.0 signals.

[0033] See Figures 2 to 4 In some embodiments, Figure 2 The lower row of terminals 2, arranged from right to left, consists of: ground terminal 24 (Gnd), a first pair of high-speed signal terminals 21 (TX2+-, differential signal terminals for transmitting high-speed signals), power terminal 23 (Power / VBUS), a function detection terminal (CC2, used to detect reversible insertion and identify the cable), a pair of low-speed signal terminals 22 (D+-, differential signal terminals for transmitting low-speed signals), an expansion terminal (SBU2, which can be defined for other uses), power terminal 23 (Power / VBUS), a second pair of high-speed signal terminals 21 (RX1+-, differential signal terminals for transmitting high-speed signals), and ground terminal 24 (Gnd). These twelve terminals 2 constitute the lower row and are designed for transmitting USB 3.0 signals.

[0034] In some embodiments, the grounding plate 3 is located on the tongue plate 12 to enhance the structural strength of the tongue plate 12 itself. The grounding plate 3 has multiple pins, each pin extending from the rear of the grounding plate 3. When the terminals 2 of the plug connector and the socket connector 100 are transmitting signals, the grounding plate 3 can isolate the multiple terminals 2 in two rows, improving the problem of crosstalk signal interference. The pins of the grounding plate 3 are connected to the circuit board for conduction and grounding.

[0035] In summary, according to some embodiments, multiple terminals are provided with grounding plates between them at a predetermined tongue thickness to ensure a certain spacing between the protrusions of each terminal and the extension of the grounding plate. This increases the current withstand capability and prevents the terminals from being too close to the grounding plate, which could lead to poor withstand voltage and short circuit risks. In some embodiments, the extension of the grounding plate corresponds to the protrusions of each high-speed signal terminal to avoid high-frequency signal interference.

Claims

1. A socket electrical connector, characterized in that: An insulating body having a base and a tongue extending outward from one side of the base; Multiple terminals, each terminal arranged in a double row on the insulating body, each terminal including multiple contact segments and multiple connecting segments, each connecting segment respectively disposed on the base, each contact segment exposed on two sides of the tongue, each terminal having a protrusion, each protrusion located at the end of each contact segment and extending into the tongue, each contact segment having a first thickness, each protrusion having a second thickness, the first thickness being greater than the second thickness; and A grounding plate is located on the tongue and between the two rows of terminals. The grounding plate has a body and a plurality of extensions. Each extension extends outward from the body and corresponds to a protrusion of each terminal. Each extension has a third thickness, and the body has a fourth thickness. The third thickness is less than the fourth thickness. The distance between each protrusion and each extension is shorter than the distance between each contact segment and each extension. A holding gap exists between each protrusion and each extension. Each terminal includes a plurality of high-speed signal terminals, at least one power terminal, and at least one ground terminal. Each high-speed signal terminal is located between adjacent power terminals and ground terminals. Each extension extends outward from the body and corresponds to a protrusion of each high-speed signal terminal.

2. The socket electrical connector according to claim 1, characterized in that: Each of the terminals includes multiple low-speed signal terminals, each of the ground terminals is located on both sides of each of the power terminals, and each of the low-speed signal terminals is located between each of the power terminals.

3. The socket electrical connector according to claim 2, characterized in that: The grounding piece has a boundary portion located between each of the extension portions and the body and corresponding to each of the contact segments, wherein the surface of each extension portion and the surface of the body are located on different planes.

4. The socket electrical connector according to claim 2, characterized in that: The thickness between the two sides of the tongue is 0.7 mm, the first thickness is between 0.1 mm and 0.12 mm, the first thickness is greater than the second thickness, and the maintaining distance is between 0.1 mm and 0.2 mm.

5. The socket electrical connector according to claim 2, characterized in that: The spacing is between 0.12 mm and 0.18 mm.

6. A socket electrical connector, characterized in that: An insulating body having a base and a tongue extending outward from one side of the base; Multiple terminals, each terminal arranged in a double row on the insulating body, each terminal including multiple contact segments and multiple connecting segments, each connecting segment respectively disposed on the base, each contact segment exposed on two sides of the tongue, each terminal having a protrusion, each protrusion located at the end of each contact segment and extending into the tongue, each contact segment having a first thickness, each protrusion having a second thickness, the first thickness being greater than the second thickness; and A grounding plate is located on the tongue and between the two rows of terminals. The grounding plate has a body and a plurality of extensions. Each extension extends outward from the body and corresponds to a protrusion of each terminal. Each extension has a third thickness, and the body has a fourth thickness equal to the third thickness. The distance between each protrusion and each extension is shorter than the distance between each contact segment and each extension. A holding gap exists between each protrusion and each extension. Each terminal includes a plurality of high-speed signal terminals, at least one power terminal, and at least one ground terminal. Each high-speed signal terminal is located between adjacent power terminals and ground terminals. Each extension extends outward from the body and corresponds to a protrusion of each high-speed signal terminal.

7. The socket connector according to claim 6, characterized in that: The surfaces of each extension are located on the same plane as the surface of the main body.

8. The socket electrical connector according to claim 6, characterized in that: The thickness between the two sides of the tongue is 0.7 mm.

9. The socket electrical connector according to claim 6, characterized in that: The first thickness is between 0.1 mm and 0.12 mm, and the holding spacing is between 0.1 mm and 0.2 mm.

10. The socket electrical connector according to claim 6, characterized in that: The spacing is between 0.12 mm and 0.18 mm.

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