Socket electrical connector

Abstract

The invention is a socket electric connector, which comprises a shielding shell, a housing, an insulating body and a plurality of socket terminals. The plurality of socket terminals are arranged on the insulating body, the shielding shell covers the insulating body, and the housing covers the shielding shell. The shielding shell of the socket electric connector is shortened in length so that a tongue of the insulating body has one end exposed, and a plurality of elastic pieces of the housing extend into each recess hole of the shielding shell. When a plug electric connector is connected to the socket electric connector, the housing of the plug electric connector contacts each elastic piece of the housing of the socket electric connector, which increases the holding force of the plug electric connector connected to the socket electric connector and reduces the problem of high-frequency interference generated when transmitting signals after the plug electric connector is connected to the socket electric connector.

Description

Technical Field

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

[0002] Electrical connectors come in a wide variety of transmission interface specifications, such as HDMI or Universal Serial Bus (USB). USB has gradually become more widely used and has evolved from the USB 2.0 transmission specification to the current USB 3.0 transmission specification, which offers even faster transmission speeds.

[0003] The appearance, structure, terminal contact method, number of terminals, pitch, and pin assignment of existing USB Type-C connectors are all significantly different from current USB connectors. Current USB Type-C connectors consist of multiple flat terminals mounted on a core, covered by an outer metal shell. Spring contacts extend from the inner side of the outer shell. When a Type-C plug connector mates with a Type-C connector, the spring contacts of the Type-C connector contact the shell of the Type-C plug connector. However, if the outer shell is shortened, there is insufficient area for the spring contacts. Therefore, when a Type-C plug connector mates with a Type-C connector, the Type-C connector lacks spring contacts to ensure stable positioning. Summary of the Invention

[0004] This invention provides a socket connector, including a shielding housing, an outer shell, an insulating body, and a plurality of socket terminals. The shielding housing includes a receiving groove and a connector communicating with the receiving groove, and one side of the shielding housing has a plurality of recesses. The outer shell covers the shielding housing and has a plurality of spring contacts, each spring contact corresponding to a recess, and each spring contact extending from the outer shell toward the recess to the receiving groove. The insulating body includes a base and a tongue, one end of the tongue extending outward from one side of the base, the base being located within the receiving groove, and one end of the tongue protruding outside the connector. The plurality of socket terminals are disposed on the base and the tongue, one end of each socket terminal located on the upper surface and the lower surface of the tongue.

[0005] Preferably, the other side of the shielding housing has multiple protrusions, each protrusion being located on the inner side of the shielding housing and protruding toward the receiving groove.

[0006] Preferably, each protrusion is located on the inner side of the shielding housing and is disposed adjacent to the positioning portion of the insertion interface.

[0007] Preferably, the shielding housing has multiple pins, and the two side walls of the housing have multiple recesses, with each pin extending from each recess to the outside of each recess.

[0008] Preferably, the outer shell has multiple limiting holes, and one side of the shielding shell has multiple protrusions, each protrusion being engaged with a specific limiting hole.

[0009] Preferably, the shielding housing has multiple blocks, each block being located on the inner side of the shielding housing and protruding toward the receiving groove, and the insulating body has multiple assembly parts, each assembly part being disposed on the base, each block being located on its respective assembly part, and the side of each block protruding from the side of the base.

[0010] Preferably, the shielding shell has multiple fixing holes on both sides, and the side walls of the outer shell have multiple locking blocks, each locking block being engaged with a fixing hole.

[0011] Preferably, the shielding shell has a mating groove on one side, the mating groove is located between multiple recesses, and the outer shell covers the mating groove.

[0012] Preferably, each spring is located in the receiving groove and extends obliquely toward the insertion interface.

[0013] Preferably, one end of each socket terminal protrudes outside the socket interface.

[0014] In summary, according to some embodiments, the shielding shell of the socket connector is shortened so that one end of the tongue protrudes outside the insertion interface, and the outer shell covers the shielding shell, with multiple spring contacts of the outer shell extending into the receiving grooves of the shielding shell. When the plug connector is inserted into the socket connector, the shell of the plug connector contacts the spring contacts of the outer shell of the socket connector, increasing the holding force of the plug connector when inserted into the socket connector and reducing high-frequency interference problems generated when transmitting signals after the plug connector is inserted into the socket connector. 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 front view of the socket connector based on some embodiments.

[0017] Figure 3 This is an exploded view of the back of a socket connector based on some embodiments.

[0018] Figure 4 This is an exploded view of the terminal module based on some embodiments.

[0019] Figure 5 This is a front view schematic diagram of a socket electrical connector based on some embodiments.

[0020] Figure 6 yes Figure 5 A cross-sectional schematic diagram of AA.

[0021] Figure 7 yes Figure 5 A cross-sectional schematic diagram of BB.

[0022] Symbol Explanation 100: Socket electrical connector 1: Shielding housing 11: Receiving slot 12: Plug-in interface 121: Positioning Department 13: Concave hole 14:Protrusion 15: Foot Connection 16: Protrusion 17: Stop 17a: Side view 18: Fixing hole 19: Connecting groove 2: Outer shell 23: Shrapnel 25: concave part 26: Limiting hole 28: Card Block 3: Insulation body 31: Base 31a: Side view 32: Tongue slice 32a: Upper surface 32b: Lower surface 37: Assembly Department 4: Socket terminals 41: High-speed signal terminal 42: Low-speed signal terminal 43: Power terminals 44: Grounding terminal 45: Contact section 46: Connecting segment 47: Welding Section 5: Grounding plate. Detailed Implementation

[0023] Reference Figure 1 This is a schematic diagram of the appearance of the socket connector 100. Preferably, the socket connector 100 is a USB (Type-C) connection interface, but not limited thereto. Preferably, the socket connector 100 can be an HDMI connection interface. The socket connector 100 includes a shielding shell 1, a housing 2, an insulating body 3, and socket terminals 4.

[0024] Reference Figure 2This is an exploded front view of the socket connector 100. Preferably, the shielding housing 1 includes a receiving groove 11 and a plug interface 12 communicating with the receiving groove 11, and one side of the shielding housing 1 has a plurality of recesses 13.

[0025] Reference Figures 1 to 3 , Figure 3 This is an exploded view of the back of the socket connector 100. Preferably, the outer shell 2 covers the shielding shell 1. The outer shell 2 has a plurality of spring contacts 23, each spring contact 23 corresponding to a recess 13. Each spring contact 23 extends from the outer shell 2 toward the recess 13 to the receiving groove 11. The insulating body 3 includes a base 31 and a tongue 32. One end of the tongue 32 extends outward from one side of the base 31. The base 31 is located inside the receiving groove 11, and one end of the tongue 32 protrudes outside the plug interface 12.

[0026] Multiple socket terminals 4 are disposed on the base 31 and the tongue 32, with one end of each socket terminal 4 located on the upper surface 32a and the lower surface 32b of the tongue 32 (e.g., Figure 6 (As shown).

[0027] When the plug connector is inserted into the socket connector 100, the housing of the plug connector will contact the springs 23 of the outer shell 2 of the socket connector 100, increasing the holding force of the plug connector when inserted into the socket connector 100. The outer shell 2 is connected to the circuit board for conduction and grounding through the shielding shell 1, reducing the high-frequency interference problem generated when the plug connector is inserted into the socket connector 100 during signal transmission.

[0028] Reference Figures 3 to 4 , Figure 4 This is an exploded view of the terminal module. Preferably, the insulating body 3 is a flat and elongated plate, which can be assembled from multiple phases or formed as a single plastic base. Here, the insulating body 3 composed of multiple phases is described. The insulating body 3 includes a three-piece plastic core, which forms a base 31 and a tongue 32.

[0029] Reference Figures 2 to 4 Preferably, multiple socket terminals 4 are arranged in a double row on the insulating body 3. The multiple socket terminals 4 include multiple high-speed signal terminals 41, multiple low-speed signal terminals 42, multiple power terminals 43, and multiple ground terminals 44. Each ground terminal 44 is located on both sides of each power terminal 43, each low-speed signal terminal 42 is located between each power terminal 43, and each high-speed signal terminal 41 is located between adjacent power terminals 43 and adjacent ground terminals 44. One end of each socket terminal 4 protrudes from the insertion interface 12 of the shielding housing 1. The multiple socket terminals 4 include multiple contact segments 45, each contact segment 45 being disposed on both sides of the tongue 32. Reference Figures 2 to 4The socket connector 100 includes a grounding piece 5, which is located on the insulating body 3 and between a plurality of socket terminals 4 in two rows (e.g., Figure 6 As shown, the grounding plate 5 includes hook structures protruding from both sides of the tongue 32. These hook structures provide contact for the plug connector. The hooks on both sides of the plug connector respectively engage with these hook structures, preventing the hooks on both sides of the plug connector from rubbing against the sides of the tongue 32 and causing wear on the tongue 32. Preferably, the grounding plate 5 is disposed on the tongue 32, improving the strength and shielding effect of the tongue 32. When multiple contact segments 45 are transmitting signals, the isolation provided by the grounding plate 5 can improve the problem of crosstalk signal interference. Simultaneously, the location of the grounding plate 5 on the tongue 32 can also enhance the structural strength of the tongue 32 itself.

[0030] See Figures 2 to 4 Preferably, the upper row of multiple socket terminals 4 are embedded in a first insulator 3a, the lower row of multiple socket terminals 4 are embedded in a second insulator 3b, the grounding piece 5 is assembled on the second insulator 3b, and then the first insulator 3a and the second insulator 3b are combined.

[0031] See Figures 2 to 4 Preferably, the plurality of socket terminals 4 include connecting sections 46 and soldering sections 47. Each connecting section 46 is respectively disposed on the first insulator and the second insulator. Each contact section 45 extends from one side of each connecting section 46 and is located on two sides of the tongue 32. Each soldering section 47 extends from the other side of each connecting section 46 and passes through the rear side of the first insulator and the second insulator (e.g., Figure 6 As shown), each welding segment 47 is a horizontal joint.

[0032] See Figures 2 to 4 Preferably, Figure 4 The top row of socket terminals, arranged from left to right, are as follows: ground terminal 44 (Gnd), first pair of high-speed signal terminals 41 (TX1+-, differential signal terminals for transmitting high-speed signals), power terminal 43 (Power / VBUS), function detection terminal (CC1, used to detect reversible insertion and identify the cable), a pair of low-speed signal terminals 42 (D+-, differential signal terminals for transmitting low-speed signals), expansion terminal (SBU1, which can be added for other uses), power terminal (Power / VBUS), second pair of high-speed signal terminals 41 (RX2+-, differential signal terminals for transmitting high-speed signals), and ground terminal 44 (Gnd). This arrangement of the twelve socket terminals in the top row is designed to accommodate USB 3.0 signals.

[0033] See Figures 2 to 4 Preferably, Figure 4The bottom row of socket terminals 4, arranged from right to left, are as follows: ground terminal 44 (Gnd), first pair of high-speed signal terminals 41 (TX2+-, differential signal terminals for transmitting high-speed signals), power terminal 43 (Power / VBUS), function detection terminal (CC2, used to detect reversible insertion and identify the cable), a pair of low-speed signal terminals 42 (D+-, differential signal terminals for transmitting low-speed signals), expansion terminal (SBU2, which can be defined for other uses), power terminal 43 (Power / VBUS), second pair of high-speed signal terminals 41 (RX1+-, differential signal terminals for transmitting high-speed signals), and ground terminal 44 (Gnd). This arrangement of the twelve socket terminals in the bottom row is designed to accommodate USB 3.0 signals.

[0034] Preferably, when the terminals of the plug connector and the socket terminals 4 of the socket connector 100 are transmitting signals, the grounding plate 5 can isolate the multiple socket terminals 4 in two rows, thus improving the problem of crosstalk signal interference. The grounding plate 5 is connected to the circuit board for conduction and grounding, and the grounding plate 5 is located on the tongue 32 to enhance the structural strength of the tongue 32 itself.

[0035] Reference Figures 5 to 7 , Figure 5 This is a front view schematic diagram of the socket connector 100. Figure 6 for Figure 5 A cross-sectional schematic diagram of the symbol AA. Figure 7 for Figure 5 A cross-sectional view of BB is shown. Preferably, the shielding shell 1 is a hollow shell, covering the insulating body 2, and the base 21 of the insulating body 2 is disposed in the receiving groove 11. One end of the shielding shell 1 has an insertion interface 12 located at the periphery of the tongue 32. Preferably, each spring 23 of the outer shell 2 is located in the receiving groove 11 and extends obliquely toward the insertion interface 12, or each spring 23 extends obliquely away from the insertion interface 12, or each spring 23 extends perpendicularly to the receiving groove 11 rather than obliquely.

[0036] Reference Figure 2 and Figure 6 Preferably, the other side of the shielding housing 1 has a plurality of protrusions 14 (circular protruding structures). Each protrusion 14 is located on the inner side of the shielding housing 1 and protrudes toward the receiving groove 11. When the plug connector is inserted into the socket connector 100, the housing of the plug connector will contact each of the protrusions 14 of the shielding housing 1 of the socket connector 100, increasing the holding force of the plug connector into the socket connector 100. Preferably, each protrusion 14 is located on the inner side of the shielding housing 1 and adjacent to the positioning portion 121 of the insertion interface 12. However, it is not limited to this, each protrusion 14 may also be located on the inner side of the shielding housing 1 and away from the insertion interface 12 at any position.

[0037] Reference Figure 2 and Figure 3 Preferably, the shielding housing 1 has a plurality of pins 15, each pin 15 extending outward from both sides of the shielding housing 1, and the two side walls of the housing 2 have a plurality of recesses 25, the width of each pin 15 being smaller than the width of each recess 25, each pin 15 extending from each recess 25 to the outside of each recess 25, and each pin 15 being soldered to a circuit board.

[0038] Reference Figure 2 and Figure 3 Preferably, the outer shell 2 is a U-shaped cover with multiple limiting holes 26 and multiple protrusions 16 on one side of the shielding shell 1. Each protrusion 16 is respectively engaged with each limiting hole 26 to increase the fixing effect between the outer shell 2 and the shielding shell 1.

[0039] Reference Figure 6 and Figure 7 Preferably, the shielding housing 1 has multiple stops 17, each stop 17 being located on the inner side of the shielding housing 1 and protruding toward the receiving groove 11. The insulating body 3 has multiple assembly parts 37, each assembly part 37 being disposed on the base 31. Each stop 17 is located on its respective assembly part 37, and the side 17a of each stop 17 protrudes from the side 31a of the base 31. When the plug connector is inserted into the socket connector 100, the front end of the plug connector housing will contact the side 17a of each stop 17. By stopping the plug connector housing, the front end of the plug connector housing is prevented from contacting the side 31a of the base 31, thus preventing the front end of the plug connector housing from colliding with the base 31 and causing damage to the base 31.

[0040] Reference Figure 2 and Figure 3 Preferably, the shielding shell 1 has multiple fixing holes 18 on both sides, and the outer shell 2 has multiple locking blocks 28 on both side walls. Each locking block 28 is respectively locked into each fixing hole 18, thereby increasing the fixing effect between the outer shell 2 and the shielding shell 1.

[0041] Reference Figure 2 and Figure 3 Preferably, the shielding housing 1 has a mating groove 19 on one side. The shielding housing 1 is a flat plate that is folded and bent so that the dovetail-shaped grooves at both ends of the shielding housing 1 mate with the protrusions. The mating groove is formed between the dovetail-shaped grooves and the protrusions after mating. The mating groove is located between a plurality of recesses 13, and the outer shell 2 covers the mating groove 19. When one side of the shielding housing 1 is pushed open by the plug connector, the mating groove 19 on one side of the shielding housing 1 is prevented from being opened by the outer shell 2 covering one side of the shielding housing 1.

[0042] Reference Figure 1 , Figure 6 and Figure 7 Preferably, the length of the shielding shell 1 can be shortened to allow the tongue 32 to protrude, with the tongue 32 protruding outside the insertion interface 12.

[0043] In summary, according to some embodiments, the shielding shell of the socket connector is shortened so that one end of the tongue protrudes outside the insertion interface, and the outer shell covers the shielding shell, with multiple spring contacts of the outer shell extending into the receiving grooves of the shielding shell. When the plug connector is inserted into the socket connector, the shell of the plug connector contacts the spring contacts of the outer shell of the socket connector, increasing the holding force of the plug connector when inserted into the socket connector and reducing high-frequency interference problems generated when transmitting signals after the plug connector is inserted into the socket connector.

Claims

1. A socket electrical connector, characterized in that... : A shielding housing includes a receiving groove and a plug interface communicating with the receiving groove, and one side of the shielding housing has a plurality of recessed holes; An outer shell covers the shielding housing, the outer shell has a plurality of spring tabs, each spring tab corresponding to a recessed hole, and each spring tab extends from the outer shell toward the recessed hole to the receiving groove; An insulating body includes a base and a tongue, one end of the tongue extending outward from one side of the base, the base being located within the receiving groove, and one end of the tongue protruding outside the insertion interface; and A plurality of socket terminals are provided, each socket terminal being disposed on the base and the tongue, with one end of each socket terminal located on the upper surface and the lower surface of one of the tongues. The shielding housing has a plurality of stops, each stop being located on the inner side of the shielding housing and protruding toward the receiving groove. The insulating body has a plurality of assembly parts, each assembly part being disposed on the base, and each stop being located on each assembly part. One side of each stop protrudes from one side of the base. When a plug connector is inserted into the socket connector, the front end of the plug connector housing will contact the side of each stop. The stop prevents the front end of the plug connector housing from contacting the side of the base by means of the stop.

2. The socket electrical connector according to claim 1, characterized in that... The shielding housing has multiple protrusions on the other side, each of which is located on the inner side of the shielding housing and protrudes toward the receiving groove.

3. The socket electrical connector according to claim 2, characterized in that... Each of the protrusions is located on the inner side of the shielding housing and is positioned adjacent to a positioning portion of the insertion interface.

4. The socket electrical connector according to claim 1, characterized in that... The shielding housing has multiple pins, and the two side walls of the housing have multiple recesses, with each pin extending from each recess to the outside of each recess.

5. The socket electrical connector according to claim 1, characterized in that... The outer shell has multiple limiting holes, and one side of the shielding shell has multiple protrusions, each of which is respectively engaged with the limiting hole.

6. The socket electrical connector according to claim 1, characterized in that... The shielding shell has multiple fixing holes on both sides, and the side walls of the outer shell have multiple locking blocks, each of which is respectively locked into the fixing hole.

7. The socket electrical connector according to claim 1, characterized in that... The shielding shell has a mating groove on one side, the mating groove is located between each of the recesses, and the outer shell covers the mating groove.

8. The socket electrical connector according to claim 1, characterized in that... Each of the aforementioned spring pieces is located in the receiving groove and extends obliquely toward the insertion interface.

9. The socket electrical connector according to claim 1, characterized in that... One end of each socket terminal protrudes outside the socket interface.

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