Plug electrical connector

Abstract

The present invention relates to a plug electrical connector, which includes a shielding housing, an insulator, a plurality of elastic terminals and a plurality of shielding sheets. The insulator is located inside the shielding housing. Each elastic terminal is disposed on the insulator and is integrally formed with the insulator through the shielding sheet, reducing the production and assembly processes and the defective losses during production and assembly. The first arc-shaped contact portion of the shielding sheet extends towards the shielding housing and effectively contacts the shielding housing, and the second arc-shaped contact portion extends towards the grounding terminal and effectively contacts the grounding terminal.

Description

Technical Field

[0001] The present invention relates to an electrical connector, and more particularly to a plug electrical connector. Background Art

[0002] Generally, the interface of an electrical connector is the Universal Serial Bus (USB), which is widely used by the public, and has developed from the USB 2.0 transmission specification to the faster USB 3.0 transmission specification today.

[0003] Structures such as sub-rubber cores respectively combined with upper and lower rows of elastic terminals, a hook member between a plurality of upper and lower rows of elastic terminals, an outer iron shell covering the outside of the rubber core, and conductive sheets provided on the rubber core.

[0004] Generally, each part of a USB Type-C plug electrical connector is a single component, and it needs to go through complicated production and assembly steps to be completed. The production and assembly are time-consuming and prone to defective losses. Moreover, the conductive sheet has a V-shaped elastic arm, and the elastic arm contacts the elastic terminal for grounding (Ground) and the outer iron shell. The V-shaped elastic arm is prone to unstable contact conduction. Summary of the Invention

[0005] In view of the above problems, the present invention provides a plug electrical connector, including a shielding housing, an insulator, a plurality of elastic terminals and a plurality of shielding sheets. The shielding housing includes a receiving groove. The insulator is disposed in the receiving groove. The insulator includes a slot and a plurality of through holes, and each through hole is formed on two sides of the insulator and communicates with the slot. Each elastic terminal is disposed on the insulator and is respectively located inside the slot. Each elastic terminal includes a plurality of signal terminals, at least one power terminal and at least one ground terminal. Each shielding sheet is respectively combined on two sides of the insulator. Each shielding sheet includes at least one side arm, a first arc contact portion and a second arc contact portion which are integrated. The first arc contact portion extends toward the shielding housing and contacts the shielding housing. The second arc contact portion extends toward the ground terminal and contacts the ground terminal.

[0006] In some embodiments, the first arc contact portion extends obliquely outward from the end of the side arm, the second arc contact portion is folded back from the first arc contact portion and extends obliquely. The cross section of the first arc contact portion and the second arc contact portion forms a wavy elastic arm, and the width of the side arm is greater than the widths of the first arc contact portion and the second arc contact portion.

[0007] In some embodiments, a plurality of forming areas are formed on two sides of the insulator, and each shielding sheet is respectively combined with each forming area.

[0008] In some embodiments, the shielding sheet includes a concave hole, and the concave hole is formed in the side arm.

[0009] In some embodiments, the shielding sheet includes a fixing arm, and the fixing arm extends obliquely outward from the side end of the shielding sheet.

[0010] In some embodiments, the insulator includes a first insulator and a second insulator that are symmetrically combined. The first insulator defines a first inner mounting space, and the second insulator defines a second inner mounting space. The first inner mounting space and the second inner mounting space form a slot.

[0011] In some embodiments, the plurality of elastic terminals includes a plurality of first elastic terminals and a plurality of second elastic terminals. The plug electrical connector further includes a first coupling block and a second coupling block. The first coupling block is coupled to each first elastic terminal and is disposed in the first inner mounting space of the first insulator. The second coupling block is coupled to each second elastic terminal and is disposed in the second inner mounting space of the second insulator.

[0012] In some embodiments, each first elastic terminal includes a first contact section, a first connection section, and a first welding section. The first connection section is disposed on the first coupling block. The second arc-shaped contact portion of the shielding sheet contacts the first connection section located on the side of the first coupling block. The first contact section extends from one side of the first connection section to the slot, and the first welding section extends from the other side of the first connection section through the first coupling block.

[0013] In some embodiments, each second elastic terminal includes a second contact section, a second connection section, and a second welding section. The second connection section is disposed on the second coupling block. The second arc-shaped contact portion of the shielding sheet contacts the second connection section located on the side of the second coupling block. The second contact section extends from one side of the second connection section to the slot, and the second welding section extends from the other side of the second connection section through the second coupling block.

[0014] In some embodiments, the first coupling block includes a first groove. The first groove is located on the side of the first grounding terminal. One side of the first second arc-shaped contact portion contacts the first grounding terminal, and the other side of the first second arc-shaped contact portion corresponds to the first groove. The second coupling block includes a second groove. The second groove is located on the side of the second grounding terminal. One side of the second second arc-shaped contact portion contacts the second grounding terminal, and the other side of the second second arc-shaped contact portion corresponds to the second groove.

[0015] In summary, according to some embodiments, by integrally forming and combining the shielding sheet and the insulator, the production and assembly processes are reduced, and the production and assembly defects and losses are reduced. Moreover, with the integral side arm, first arc-shaped contact portion, and second arc-shaped contact portion of the shielding sheet provided, the first arc-shaped contact portion extends toward the shielding housing and effectively contacts the shielding housing, and the second arc-shaped contact portion extends toward the grounding terminal and effectively contacts the grounding terminal. When the plug electrical connector is docked with the socket electrical connector, the shielding sheet of the plug electrical connector contacts the EMI conductive sheet of the socket electrical connector to effectively conduct grounding, prevent electromagnetic interference, and suppress noise. Description of the Drawings

[0016] Figure 1 It is a schematic external view according to some embodiments, and the dashed line shows the position of the shielding sheet inside the shielding housing.

[0017] Figure 2 It is a schematic front exploded view according to some embodiments.

[0018] Figure 3 It is a schematic rear exploded view according to some embodiments.

[0019] Figure 4 It is a schematic exploded view according to some embodiments, showing the first insulator and the shielding sheet.

[0020] Figure 5 It is a schematic exploded view according to some embodiments, showing the second insulator and the shielding sheet.

[0021] Figure 6 It is a schematic exploded view according to some embodiments, showing the first engaging block, the first insulator and the shielding sheet.

[0022] Figure 7 It is as shown in Figure 1 The schematic external view shows the state with the shielding housing removed.

[0023] Figure 8 It is as shown in Figure 1 The schematic cross-sectional view of the A-A lead.

[0024] Figure 9 It is as shown in Figure 8 The enlarged schematic view of the mark B.

[0025] Figure 10 It is as shown in Figure 1 The schematic external view shows the relative relationship between the shielding sheet and each first elastic terminal.

[0026] Figure 11 It is as shown in Figure 10 The schematic top view.

[0027] Symbol description

[0028] 100: Plug electrical connector

[0029] 1: Shielding housing

[0030] 11: Receiving groove

[0031] 13: Clamping piece

[0032] 2: Insulator

[0033] 2a: Molding area

[0034] 20: Slot

[0035] 2’: First insulator

[0036] 20’: First inner mounting space

[0037] 21’: First snap groove

[0038] 22’: Perforation

[0039] 23’: Bump

[0040] 2’’: Second insulator

[0041] 20’’: Second inner mounting space

[0042] 21’’: Second snap groove

[0043] 22’’: Perforation

[0044] 23’’: Bump

[0045] 3: First elastic terminal

[0046] 31: First signal terminal

[0047] 32: First power terminal

[0048] 33: First ground terminal

[0049] 35: First contact section

[0050] 36: First connection section

[0051] 37: First welding section

[0052] 4: First bonding block

[0053] 41: First locking block

[0054] 42: First fixing structure

[0055] 43: Recess

[0056] 44: First groove

[0057] 6: Second elastic terminal

[0058] 61: Second signal terminal

[0059] 62: Second power terminal

[0060] 63: Second ground terminal

[0061] 65: Second contact section

[0062] 66: Second connection section

[0063] 67: Second welding section

[0064] 7: Second engaging block

[0065] 71: Second locking block

[0066] 72: Second fixing structure

[0067] 73: Concave portion

[0068] 74: Second groove

[0069] 8: Shielding piece

[0070] 81: Side arm

[0071] 811: Concave hole

[0072] 82: First arc-shaped contact portion

[0073] 83: Second arc-shaped contact portion

[0074] 84: Fixing arm

[0075] 9: Metal part

[0076] 91: Buckle hole

[0077] 93: Side arm. Detailed implementation manners

[0078] Refer to Figures 1 to 3 , Figure 1 is a schematic view of the appearance. The dotted line shows the position of the shielding piece 8 in the shielding housing 1. Figure 2 is a schematic front exploded view, Figure 3 is a schematic back exploded view. In some embodiments, the plug electrical connector 100 may be of the USB Type-C connection interface specification. The plug electrical connector 100 includes a shielding housing 1, an insulator 2, a plurality of elastic terminals, and a plurality of shielding pieces 8. The insulator 2 may be a one-piece structure or a combination of multiple-piece structures. The plurality of elastic terminals may be arranged in a single row or a double row by a plurality of terminals. The plurality of elastic terminals include a first elastic terminal 3 and a second elastic terminal 6.

[0079] In some embodiments, the shielding housing 1 includes a receiving groove 11.

[0080] In some embodiments, the insulator 2 is disposed in the receiving groove 11. The insulator 2 includes a slot 20 (as Figure 8 shown) and a plurality of through holes 22’ / 22’’. Each through hole 22’ / 22’’ is formed on two surfaces (the upper surface and the lower surface) of the insulator 2 and communicates with the slot 20.

[0081] In some embodiments, each elastic terminal is disposed on the insulator 2 and is respectively located at the upper and lower parts of the inner side of the slot 20, and each elastic terminal includes a plurality of signal terminals (e.g., a first signal terminal 31 and a second signal terminal 61), at least one power terminal (e.g., a first power terminal 32 and a second power terminal 62) and at least one ground terminal (e.g., a first ground terminal 33 and a second ground terminal 63).

[0082] In some embodiments, each shielding sheet 8 is respectively combined with two surfaces of the insulator 2, and each shielding sheet 8 includes at least one side arm 81, a first arc-shaped contact portion 82 and a second arc-shaped contact portion 83. The first arc-shaped contact portion 82 extends toward the shielding shell 1 and contacts the shielding shell 1, and the second arc-shaped contact portion 83 extends toward the grounding terminal and contacts the grounding terminal. Figure 11 In a top view, the width of the side arm 81 is greater than the widths of the first arc-shaped contact portion 82 and the second arc-shaped contact portion 83 .

[0083] Reference Figure 2 , Figures 4 to 5 , Figure 4 This is a schematic diagram of an exploded view of the first insulator 2' and the shielding sheet 8. Figure 5 Schematic diagram of the second insulator 2'' and the shielding sheet 8. In some embodiments, the first arc-shaped contact portion 82 extends obliquely outward from the end of the side arm 81, and the second arc-shaped contact portion 83 is bent back from the first arc-shaped contact portion 82 and extends obliquely, and the cross-sections of the first arc-shaped contact portion 82 and the second arc-shaped contact portion 83 form a spring arm with a wavy appearance (e.g., N-shaped or S-shaped).

[0084] Reference Figure 2 , Figures 4 to 5 In some embodiments, a plurality of molding areas 2a are formed on two surfaces (upper surface and lower surface) of the insulator 2, and each shielding sheet 8 is respectively combined with each molding area 2a, and the surface of each shielding sheet 8 is flush with the two surfaces of the insulator 2 and exposed.

[0085] Reference Figures 4 to 5 , Figure 7 and Figure 8 , Figure 7 To draw Figure 1 The schematic diagram of the appearance shown shows the state where the shielding shell 1 is removed. Figure 8 To draw Figure 1 AA lead cross-sectional diagram. The plurality of shielding sheets 8 include a first shielding sheet and a second shielding sheet, and the first shielding sheet and the second shielding sheet each include a plurality of extending into the slot 20 (such as Figure 8The first elastic arm and the second elastic arm as shown). Assemble the first shielding sheet to the first insulator 2', then assemble the first insulator 2' and the first coupling block 4 into a semi-component. Assemble the second shielding sheet to the second insulator 2'', then assemble the second insulator 2'' and the second coupling block 7 into a semi-component. Integrate the upper and lower semi-components and then install them into the shielding housing 1.

[0086] Referring to Figures 4 to 5 , Figure 7 and Figure 8 , in some embodiments, the shielding sheet 8 includes a concave hole 811 formed in the side arm 81. When the insulator 2 is injection-molded, a bump 23' / 23'' is formed in each concave hole 811 (as shown in Figure 7 ), fixing each shielding sheet 8. The shielding sheet 8 includes a fixing arm 84 that extends obliquely outward from the side end of the shielding sheet 8. When the insulator 2 is injection-molded, the fixing arm 84 is buried in the insulator 2 (as shown in Figure 7 ), fixing each shielding sheet 8.

[0087] Referring to Figures 2 to 3 , Figure 7 and Figure 8 , in some embodiments, the shielding housing 1 is a hollow housing formed by an extraction process. The shielding housing 1 is an integral outer shell with no seams on the surface, having a beautiful appearance and improved structural strength. Here, the shielding housing 1 is composed of a one-piece housing structure, but not limited thereto. In some embodiments, the shielding housing 1 can also be formed by bending a multi-piece housing structure. Also, on the upper and lower sides of the inner side of the rear of the shielding housing 1, there are bent fastening pieces 13 that snap into the recess 43 of the first coupling block 4 of the first terminal module and the recess 73 of the second coupling block 7 of the second terminal module.

[0088] Referring to Figures 2 to 3 , Figure 7 and Figure 8 , in some embodiments, the insulator 2 includes a first insulator 2' and a second insulator 2'' that are symmetrically combined. The first insulator 2' defines a first inner mounting space 20', and the second insulator 2'' defines a second inner mounting space 20''. The first inner mounting space 20' and the second inner mounting space 20'' form a slot 20.

[0089] Referring to Referring Figure 2 , Figure 3 and Figure 6 , Figure 6 is an exploded schematic diagram, a schematic diagram of the first coupling block 4, the first insulator 2', and the shielding sheet 8. In some embodiments, the first terminal module includes a plurality of first elastic terminals 3 and a first coupling block 4. The first coupling block 4 is coupled to each first elastic terminal 3 and is disposed in the first inner mounting space 20' of the first insulator 2' (for example, the inner surface of the first insulator 2').

[0090] Reference Figure 2 、 Figure 3 and Figure 6 In some embodiments, the second terminal module includes a plurality of second elastic terminals 6 and a second coupling block 7. The second coupling block 7 is coupled to each second elastic terminal 6 and disposed in the second inner mounting space 20'' (e.g., the inner side surface of the second insulator 2'') of the second insulator 2''.

[0091] Reference Figures 2 to 3 and Figure 8 In some embodiments, after the first terminal module, the second terminal module, the first insulator 2', and the second insulator 2'' are combined in a four-piece structure, a slot 20 is formed inside the first insulator 2' and the second insulator 2''. The first insulator 2', the second insulator 2'', the first terminal module, and the second terminal module are disposed in the receiving groove 11 of the shielding housing 1. The first insulator 2' of the assembled first terminal module and the second insulator 2'' of the assembled second terminal module are combined and disposed in the receiving groove 11 of the shielding housing 1.

[0092] Reference Figures 2 to 3 and Figure 8 In some embodiments, the first terminal module includes a plurality of first elastic terminals 3 and a first coupling block 4 integrally combined by injection molding (insert molding) to form a first-piece structure, and then the first insulator 2' of the second-piece structure is combined. The second terminal module includes a plurality of second elastic terminals 6 and a second coupling block 7 integrally combined by injection molding (insert molding) to form a third-piece structure, and then the second insulator 2'' of the fourth-piece structure is combined.

[0093] Reference Figures 2 to 3 and Figure 8 In some embodiments, the first elastic terminal 3 and the first coupling block 4 are tightly combined to prevent moisture from overflowing from the front plugging side of the plug electrical connector 100 (such as Figure 8 the plugging opening on the left side), and then flowing into the rear welding side (such as Figure 8 as shown in the terminal slot on the first coupling block 4) through the contact part between the first elastic terminal 3 and the first coupling block 4, and then flowing into the rear welding side (such as Figure 8 the positions of the first welding section 37 and the second welding section 67 on the right side).

[0094] Reference Figures 2 to 3 and Figure 8 In some embodiments, the second elastic terminal 6 and the second coupling block 7 are tightly combined to prevent moisture from overflowing from the front plugging side of the plug electrical connector 100 (such as Figure 8 the plugging opening on the left side), and then flowing through the contact part between the second elastic terminal 6 and the second coupling block 7 (such asFigure 8 flows into the rear soldering side (such as the terminal slots on the second engaging block 7 shown) Figure 8 at the positions of the first soldering section 37 and the second soldering section 67 on the right side).

[0095] Referring to Figures 2 to 3 and Figure 8 , in some embodiments, after the first terminal module, the second terminal module, the first insulator 2' and the second insulator 2'' of the four-piece structure are assembled with each other, they are then loaded into the shielding housing 1. In this way, they are integrated into upper and lower half parts and then loaded into the receiving groove 11 of the shielding housing 1, reducing the components required for production and reducing the production and assembly processes. There is no need to provide a spacer (such as, but not limited to, polyester film, Mylar) for insulation between the first terminal module and the shielding housing 1 and between the second terminal module and the shielding housing 1, reducing the defective losses in production and assembly.

[0096] Referring to Figures 2 to 3 and Figure 8 , in some embodiments, the first insulator 2' and the second insulator 2'' are each a half structure of an annular shape. That is to say, the first insulator 2' and the second insulator 2'' are flat and long plate bodies of a half-annular shape, with regular shapes and being symmetric up, down, left and right. Moreover, the first insulator 2' is combined with the second insulator 2'' to form an annular wall structure, and a slot 20 is formed inside the annular wall structure for docking with a socket electrical connector.

[0097] Referring to Figures 2 to 3 , Figure 6 and Figure 8 , in some embodiments, the plurality of first elastic terminals 3 includes a plurality of first signal terminals 31, at least one first power terminal 32 and at least one first ground terminal 33. Viewed from the front of the plurality of first elastic terminals 3, from the right side to the left side in sequence are the first ground terminal 33 (Gnd), a pair of first signal terminals 31 (TX1 + -, high-speed differential signal terminals), the first power terminal 32 (Power / VBUS), the first function detection terminal (CC1, used to detect the function of forward and reverse insertion and identify the function of the CABLE), a pair of first signal terminals 31 (D + -, low-speed differential signal terminals), the first reserved terminal (RFU), the first power terminal 32 (Power / VBUS), a second pair of first signal terminals 31 (RX2 + -, high-speed differential signal terminals), and the first ground terminal 33 (Gnd) at the leftmost side.

[0098] Referring to Figures 2 to 3 , Figure 6 and Figure 8, in some embodiments, each of the first terminals is a bent terminal. Each of the first elastic terminals 3 includes a first contact section 35, a first connection section 36, and a first welding section 37. The first connection section 36 is disposed on the first coupling block 4. The first contact section 35 extends from one side of the first connection section 36. The first welding section 37 extends from the other side of the first connection section 36 and passes through the first coupling block 4. The first contact section 35 is a curved arc structure. A plurality of first signal terminals 31 extend into the slot 20 to transmit a set of first signals (i.e., USB3.0 signals or other signals (such as but not limited to HDMI signals, etc.)), which can reduce the terminals for transmitting USB2.0 signals.

[0099] Refer to Figures 2 to 3 , Figure 8 and Figure 9 , in some embodiments, the first connection section 36 is disposed on the first coupling block 4. The second arc-shaped contact portion 83 of the shielding sheet 8 contacts the first connection section 36 located on the side of the first coupling block 4. The second connection section 66 is disposed on the second coupling block 7. The second arc-shaped contact portion 83 of the shielding sheet 8 contacts the second connection section 66 located on the side of the second coupling block 7.

[0100] Refer to Figures 2 to 3 , Figure 6 and Figure 8 , in some embodiments, a plurality of second elastic terminals 6 include a plurality of second signal terminals 61, at least one second power terminal 62, and at least one second ground terminal 63. From the front view of the plurality of second elastic terminals 6, from left to right in sequence are the second ground terminal 63 (Gnd), the first pair of second signal terminals 61 (TX2 + -, high-speed differential signal terminals), the second power terminal 62 (Power / VBUS), the second function detection terminal (CC2, used to detect the function of plugging in the front and back and identify the function of the CABLE), a pair of second signal terminals 61 (D + -, low-speed differential signal terminals), the second reserved terminal (RFU), the second power terminal 62 (Power / VBUS), the second pair of second signal terminals 61 (RX1 + -, high-speed differential signal terminals), and the second ground terminal 63 (Gnd) on the far right.

[0101] Refer to Figures 2 to 3 , Figure 6 and Figure 8, in some embodiments, each of the second elastic terminals 6 is a bent terminal. Each second elastic terminal 6 includes a second contact section 65, a second connection section 66, and a second welding section 67. The second connection section 66 is disposed on the second combining block 7. The second contact section 65 extends from one side of the second connection section 66, and the second welding section 67 extends from the other side of the second connection section 66 and passes through the second combining block 7. The second contact section 65 is a curved arc structure and corresponds to the first contact section 35. That is, each first contact section 35 and each second contact section 65 are opposite curved arcs. In addition, each first welding section 37 and each second welding section 67 together define a clamping elastic arm for clamping and contacting the circuit board. Furthermore, a plurality of second signal terminals 61 extend in the slot 20 to transmit a set of second signals (i.e., USB3.0 signals or other signals (such as but not limited to HDMI signals, etc.)), and the terminals for transmitting USB2.0 signals can be reduced.

[0102] Refer to Figures 2 to 3 , Figure 6 and Figure 8 , in some embodiments, the first combining block 4 is formed and combined with each first elastic terminal 3, and the second combining block 7 is formed and combined with each second elastic terminal 6. Here, the first combining block 4 is combined at each first connection section 36 by an insert-molding method, and the second combining block 7 is combined at each second connection section 66 by an insert-molding method. Then, the first combining block 4 and the second combining block 7 are assembled above and below the metal part 9. Next, the semi-finished product composed of the metal part 9, the first terminal module, and the second terminal module is assembled and loaded into the receiving groove 11 of the shielding housing 1.

[0103] Refer to Figures 2 to 3 , Figure 6 and Figure 8 , in some embodiments, first buckle grooves 21' are formed on both sides of the first insulator 2'. First clamping blocks 41 are formed on both sides of the first combining block 4, and each first clamping block 41 is clamped in each first buckle groove 21'. Moreover, second buckle grooves 21'' are formed on both sides of the second insulator 2''. Second clamping blocks 71 are formed on both sides of the second combining block 7, and each second clamping block 71 is clamped in each second buckle groove 21''.

[0104] Refer to Figures 2 to 3 , Figure 6 and Figure 8 , in some embodiments, a first fixing structure 42 (which can be a convex part or a concave part) is provided on the inner side of the first combining block 4, and a second fixing structure 72 (which can be a convex part or a concave part) is provided on the inner side of the second combining block 7. The first fixing structure 42 is combined with the second fixing structure 72 (which can be a convex-concave combination). Here, the first fixing structure 42 forms a concave hole, and the second fixing structure 72 is a protruding block that is clamped in the concave hole.

[0105] Referring to Figures 2 to 3 , Figure 6 and Figure 8 , in some embodiments, the plug electrical connector 100 further includes a metal member 9 disposed between the first insulator 2' and the second insulator 2''.

[0106] Referring to Figures 2 to 3 , Figure 6 and Figure 8 , in some embodiments, the metal member 9 is formed by blanking, but not limited thereto. In some embodiments, the metal member 9 can be formed by stamping. The structural strength of the metal member 9 formed by blanking is higher than that of the metal member 9 formed by stamping. Further, side arms 93 extend from both sides of the metal member 9 respectively. The center of the metal member 9 generally presents a rectangular plate member having a fastening hole 91. The first fixing structure 42 and the second fixing structure 72 penetrate into the fastening hole 91 to fix the metal member 9 between the first insulator 2' and the second insulator 2''.

[0107] Referring to Figures 2 to 3 , Figure 6 and Figure 8 , in some embodiments, each side arm 93 is a long and narrow terminal. Each side arm 93 is symmetrical about the left and right. Each side arm 93 extends outward in the same direction from both sides of the metal member 9, and each side arm 93 penetrates into the slot 20. The side arm 93 further includes a plurality of elastic contact segments and a plurality of pins. Each elastic contact segment is formed on the front side of each side arm 93. Each elastic contact segment can contact the socket electrical connector. When the plug electrical connector 100 is plugged into the socket electrical connector, the elastic contact segment provides a clamping and fixing function. Further, each pin extends outward from the rear side of each side arm 93, and each pin penetrates outside the first insulator 2' and the second insulator 2'' to contact the circuit board.

[0108] Referring to Referring Figures 9 to 11 , Figure 9 is Figure 8 an enlarged schematic view of the mark B, Figure 10 is Figure 1 the external appearance schematic view as shown, showing the relative relationship between the shielding sheet 8 and each first elastic terminal, Figure 11 is Figure 10 the top view schematic view as shown. In some embodiments, the first engaging block 4 includes a first groove 44 located on the side of the first ground terminal 33. One side of the second arc-shaped contact portion 83 contacts the first ground terminal 33, and the other side of the second arc-shaped contact portion 83 corresponds to the first groove 44 (as Figure 11The second arc-shaped contact portion 83 shown is located at an intermediate position between the first grounding terminal 33 and the first groove 44 (the first groove 44 is represented by an imaginary line of a two-dot chain line). In some embodiments, the second bonding block 7 includes a second groove 74, and the second groove 74 is located on the side of the second grounding terminal 63. One side of the second arc-shaped contact portion 83 contacts the second grounding terminal 63, and the other side of the second arc-shaped contact portion 83 corresponds to the second groove 74 (as Figure 3 shown).

[0109] In summary, according to some embodiments, by integrally forming the shielding sheet and the insulator, the production and assembly processes are reduced, and the production and assembly defects and losses are reduced. Moreover, with the integrated side arm, first arc-shaped contact portion, and second arc-shaped contact portion of the shielding sheet provided, the first arc-shaped contact portion extends toward the shielding housing and effectively contacts the shielding housing, and the second arc-shaped contact portion extends toward the grounding terminal and effectively contacts the grounding terminal. When the plug electrical connector and the socket electrical connector are docked, the shielding sheet of the plug electrical connector contacts the EMI conductive sheet of the socket electrical connector to effectively conduct grounding, prevent electronic interference, and suppress noise.

Claims

1. A plug electrical connector, characterized in that: A shielding housing, including a receiving groove; An insulator, the insulator is disposed in the receiving groove, the insulator includes a slot and a plurality of through holes, each of the through holes is formed on two sides of the insulator and communicates with the slot; A plurality of elastic terminals, each of the elastic terminals is disposed on the insulator and is respectively located inside the slot, each of the elastic terminals includes a plurality of signal terminals, at least one power terminal and at least one ground terminal; And A plurality of shielding sheets, each of the shielding sheets is respectively combined on two sides of the insulator, each of the shielding sheets includes at least one side arm, a first arc contact portion and a second arc contact portion which are integrated, the first arc contact portion extends towards the shielding housing and contacts the shielding housing, and the second arc contact portion extends towards the ground terminal and contacts the ground terminal.

2. The plug electrical connector according to claim 1, wherein: The first arc contact portion obliquely extends outwards from the end of the side arm, the second arc contact portion is folded back from the first arc contact portion and obliquely extends, and the cross section of the first arc contact portion and the second arc contact portion forms a wavy elastic arm, and the width of the side arm is greater than the widths of the first arc contact portion and the second arc contact portion.

3. The plug electrical connector according to claim 1 or 2, characterized in that: A plurality of forming regions are formed on two sides of the insulator, and each of the shielding sheets is respectively combined on each of the forming regions.

4. The plug electrical connector according to claim 1 or 2, characterized in that: The shielding sheet includes a concave hole, and the concave hole is formed in the side arm.

5. The plug electrical connector according to claim 1 or 2, characterized in that: The shielding sheet includes a fixing arm, and the fixing arm obliquely extends outwards from the side end of the shielding sheet.

6. The plug electrical connector according to claim 1 or 2, characterized in that: The insulator includes a first insulator and a second insulator which are symmetrically combined, the first insulator defines a first inner installation space, the second insulator defines a second inner installation space, and the first inner installation space and the second inner installation space form the slot.

7. The plug electrical connector according to claim 6, wherein: Each of the elastic terminals includes a plurality of first elastic terminals and a plurality of second elastic terminals, and the plug electrical connector further includes a first combining block and a second combining block, the first combining block is combined with each of the first elastic terminals and is disposed in the first inner installation space of the first insulator, and the second combining block is combined with each of the second elastic terminals and is disposed in the second inner installation space of the second insulator.

8. The plug electrical connector according to claim 7, wherein: Each of the first elastic terminals includes a first contact section, a first connection section and a first welding section, the first connection section is disposed on the first combining block, the second arc contact portion of the shielding sheet contacts the first connection section located on the side of the first combining block, the first contact section extends from one side of the first connection section to the slot, and the first welding section extends from the other side of the first connection section and penetrates out of the first combining block.

9. The plug electrical connector according to claim 7, wherein: Each of the second elastic terminals includes a second contact section, a second connection section and a second welding section, the second connection section is disposed on the second combining block, the second arc contact portion of the shielding sheet contacts the second connection section located on the side of the second combining block, the second contact section extends from one side of the second connection section to the slot, and the second welding section extends from the other side of the second connection section and penetrates out of the second combining block.

10. The plug electrical connector according to claim 7, wherein: The first coupling block includes a first groove located on the side of a first grounding terminal. One side of the first second arc-shaped contact portion contacts the grounding terminal of each of the first elastic terminals, and the other side of the first second arc-shaped contact portion corresponds to the first groove. The second coupling block includes a second groove located on the side of a second grounding terminal. One side of the second second arc-shaped contact portion contacts the grounding terminal of each of the second elastic terminals, and the other side of the second second arc-shaped contact portion corresponds to the second groove.

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