TWI593190B - Plug electrical connector - Google Patents

Description

Plug electrical connector

The invention relates to a plug electrical connector, in particular to a plug electrical connector, which simultaneously filters out noise on all coaxial cables through a grounding strip to avoid high frequency signal interference between high frequency signal terminals and a plug electrical connector pair. Signal interference from other nearby electronic devices.

The electrical connector is a common electronic component on the electronic device, and can be connected to the matching electrical connector on the other electronic device, thereby transmitting signals and power between the two electronic devices. Please refer to the Chinese Patent Publication No. CN223012819. The invention discloses an electrical connector having an insulating body, a conductive terminal, a metal casing and a cable. The cable has a plurality of coaxial wires and a ground wire, and each of the coaxial wires has a core wire, an insulating endoscope and a braid layer. The core wire is sequentially coated with an insulating endothelium and a braid layer, and is electrically connected to the conductive terminals. In addition, the braid layer and the grounding wire are soldered to the inner surface of the metal casing, and the electrical connector is grounded by the above-described welding method. However, the structure in which the braided layer of the cable and the grounding wire are respectively welded into the metal casing requires a process of pulling a part of the braided layer on each core wire and then welding it to the inner surface of the metal casing, which is complicated in structure and manufacture. The difficulty is high. When the number of coaxial wires is large, the welding procedure of the braid layer is more cumbersome and prone to defects, resulting in poor grounding effect of the electrical connector, and the stability and efficiency of the high-frequency signal transmission of the conductive terminals are poor.

Please refer to the Chinese Patent No. CN201601302. The utility model patent discloses another electrical connector, which comprises an insulating body, a plurality of conductive terminals, a plurality of coaxial cables and a cover. Each of the coaxial cables has an inner conductor, an inner insulating layer, a metal braided mesh, and an outer insulating layer. However, the electrical connection The connector does not indicate how to ground the coaxial cable. In the absence of grounding, the conductive terminals will generate signal interference between each other, reducing the stability and efficiency of high-frequency signal transmission.

The inventors have in view of the complicated manufacturing procedure of the conventional electrical connector grounding structure, which is liable to cause the problem of flaws in the grounding and the grounding, and to improve the deficiencies and defects thereof, thereby creating a plug electrical connector.

The main purpose of the present invention is to provide a plug electrical connector that simultaneously filters out noise on all coaxial cables through a grounding strip to avoid high-frequency signal interference between high-frequency signal terminals and other electrical devices of the plug electrical connector to nearby electronic devices. Signal interference.

In order to achieve the above object, the plug electrical connector includes: an insulative housing having a fixed base and an extension plate having a top plate, a bottom plate and two opposite sides disposed between the top plate and the bottom plate The side wall of the fixed base is formed with a socket space between the top plate, the bottom plate and the two side walls, and the extension plate protrudes rearward from the rear end of the fixed base; the two terminal groups are connected to the space The center points are symmetrically centered and point-symmetric with each other, and are respectively disposed on the inner surface of the top plate of the fixed base of the insulating body and the inner surface of the bottom plate, and each of the terminal groups respectively has a plurality of conductive terminals, and each of the conductive terminals has a fixed segment and a self An electrical contact section extending forwardly of the fixing section and a welding section disposed on the top surface or the bottom surface of the extension board, wherein the electrical contact sections of the two terminal groups are vertically connected, and the welding sections of the two terminal groups are vertically connected; The top surface and the bottom surface of the extension plate of the insulating body are respectively disposed and connected to each other; a shielding shell is formed on the shielding shell to form an accommodating space Receiving the insulating body; and The cable is electrically connected to the two terminal groups, and the cable has a two-wire group, and the two wire groups are respectively disposed on the top surface and the bottom surface of the extension plate, respectively corresponding to the two terminal groups, and respectively corresponding to the two grounding pieces. Each of the wire sets has a plurality of coaxial wires, each of the coaxial wires has a conductive core wire, an inner insulating layer and a braided layer, the conductive core wire is electrically connected to the corresponding conductive terminal soldering section, and the inner insulating layer covers the conductive core wire, and the weaving The layer covers the inner insulating layer and is electrically connected to the corresponding grounding piece.

By the above technical means, the two grounding pieces of the high-speed plug electrical connector of the present invention are fixed and electrically connected to the braided layers of all the coaxial wires by welding or other means, and the welded segments of the conductive terminals are also welded or otherwise coaxial. The conductive core wires of the wires are fixed and electrically connected. Thereby, the grounding strip effectively grounds all the coaxial lines, avoiding signal interference between the coaxial lines or signal interference between the conductive terminals. In addition, the insulating body and the shielding shell are in a vertically symmetrical state, and the two terminal groups are point-symmetric with each other at the center of the insertion space of the insulating body, and the conductive terminal definitions of the two terminal groups are the same, so the high-speed plug electrical connector When the corresponding socket connector is inserted, it can be inserted in a positive or negative insertion manner without any foolproof measures.

A connecting piece is extended at a rear end of the shielding shell, and the connecting piece end is electrically connected to at least one of the grounding pieces.

An assembly groove is formed on each of the top surface and the bottom surface of the extension plate; the two ground plates are respectively disposed in the two assembly slots.

The two ends of the grounding strips are respectively bent to form a connecting portion to connect the connecting portion of the other grounding piece.

An upper through slot is formed in the top plate of the fixed base of the insulative housing, and a through through slot is formed in the bottom plate; the upper surface of the top surface of the fixed base and the outer surface of the bottom plate are respectively provided with an upper elastic piece seat and a lower elastic piece seat, The upper elastic piece seat is formed with a plurality of upper pressing elastic pieces extending through the upper through groove and extending into the insertion space, and the lower elastic piece seat is formed with a plurality of lower pressing elastic pieces which pass through the lower through grooves and protrude into the insertion space.

The plug electrical connector further has an upper shielding cover and a lower shielding cover, and the upper shielding cover and the lower shielding cover respectively cover the extension plate, the welding section of the conductive terminal and the end of the coaxial line in a manner of being sandwiched.

A fixing hole is formed on each of the two sides of the upper shielding cover; a fixing fastener is respectively formed on each of the two sides of the lower shielding cover to be respectively fastened to the fixing hole.

Each of the aforementioned coaxial wires further has an outer insulating layer covering the braid layer.

The plug electrical connector further includes an outer protective casing covering the extension plate, the upper shield cover, the lower shield cover, and the end of the cable.

Each of the terminal groups is disposed in an insert-molding manner on the top plate and the bottom plate of the fixing base of the insulating body.

The plurality of upper terminal grooves are formed on the inner surface of the top surface of the fixed base to accommodate a plurality of conductive terminals of one of the terminal groups, and the plurality of lower terminal slots are formed on the inner surface of the bottom plate to accommodate the plurality of conductive terminals of the other terminal group.

10‧‧‧Insulated body

100‧‧‧Dock space

11‧‧‧Fixed base

111‧‧‧ top board

1110‧‧‧Upper terminal slot

112‧‧‧floor

1120‧‧‧ Lower terminal slot

113‧‧‧ side wall

115‧‧‧Upper through slot

116‧‧‧Under the slot

12‧‧‧ Extension board

121‧‧‧Assemble slot

15‧‧‧Upper slide seat

151‧‧‧Forcing the shrapnel

16‧‧‧Sheeling seat

161‧‧‧ Under tension shrapnel

20‧‧‧Electrical terminals

21‧‧‧ fixed section

22‧‧‧Electrical contact

23‧‧‧welding section

30‧‧‧ Grounding piece

31‧‧‧Connecting Department

40, 40a‧‧‧ Shielded enclosure

400‧‧‧ accommodating space

47‧‧‧Connecting piece

50‧‧‧Upper shield cover

51‧‧‧Fixed holes

60‧‧‧Under the shield cover

61‧‧‧Fixed fasteners

70‧‧‧ outer protective shell

80‧‧‧ cable

90‧‧‧ coaxial cable

91‧‧‧Conductive core wire

92‧‧‧Insulation

93‧‧‧woven layer

94‧‧‧Outer insulation

Fig. 1 is a perspective view showing a first embodiment of the present invention.

Fig. 2 is a perspective view showing the appearance of the outer protective casing in the first embodiment of the present invention.

Fig. 3 is a perspective view showing the outer casing, the upper shield cover and the lower shield cover of the first embodiment of the present invention.

Fig. 4 is another perspective view showing the outer casing, the upper shield cover and the lower shield cover of the first embodiment of the present invention.

Fig. 5 is an exploded perspective view showing the outer protective casing of the first embodiment of the present invention.

Fig. 6 is another perspective exploded view showing the outer protective casing of the first embodiment of the present invention.

Figure 7 is a front elevational view of the first embodiment of the present invention.

Fig. 8 is a side view showing the outer casing, the upper shield cover and the lower shield cover omitted in the second embodiment of the present invention.

Figure 9 is a front cross-sectional view of the present invention.

Figure 10 is a side cross-sectional view of the outer protective casing omitted in the present case.

Referring to FIG. 1 to FIG. 2, the first embodiment of the plug electrical connector of the present invention may be a Universal Serial Bus Type C connector conforming to the Universal Serial Bus Type-C Cable. And Connector Specification version 0.98C.

Referring to FIG. 3 to FIG. 6 and FIG. 9 and FIG. 10, the plug electrical connector of the present invention comprises: an insulative housing 10, two terminal sets, two grounding strips 30, a shielded outer casing 40, a cable 80, and an upper shield. The cover 50, the lower shield cover 60 and an outer protective casing 70.

The insulative housing 10 has a fixed base 11 and an extension plate 12. The fixed base 11 has a top plate 111, a bottom plate 112 and two side walls 113 opposite to each other and disposed between the top plate 111 and the bottom plate 112. A front end of the base 11 is formed with a docking space 100 interposed between the top plate 111, the bottom plate 112, and the side walls 113. Further, a plurality of upper terminal grooves 1110 are formed on the inner surface of the top plate 111 of the fixed base 11, and a plurality of lower terminal grooves 1120 are formed on the inner surface of the bottom plate 112. The extension plate 12 protrudes rearward from the rear end of the fixing base 11, and an assembly groove 121 is formed on the top surface and the bottom surface of the extension plate 12, respectively. In addition, the top plate 111 of the fixed base 11 is formed with an upper through slot 115 communicating with the insertion space 110, and a lower through slot 116 communicating with the insertion space 110 is formed on the bottom plate 112; the top plate 111 of the fixed base 11 is externally An upper elastic piece seat 15 and a lower elastic piece seat 16 are respectively disposed on the outer surface of the surface and the bottom plate 112. The upper elastic piece seat 15 is formed with a plurality of upper pressing elastic pieces 151 extending through the upper through groove 115 and extending into the insertion space 100, and the lower elastic piece A lower pressing elastic piece 161 is formed on the seat 16 through the lower through groove 116 and extending into the insertion space 100.

Referring to FIG. 7 further, the two terminal groups are point-symmetric with each other with the center point of the insertion space 110 as a center of symmetry. The point symmetry means that after rotating the two terminal groups by 180 degrees according to the center of symmetry as the center of rotation, the two terminal groups after rotation can completely overlap with the two terminal groups before rotation. Through the point-symmetric terminal group configuration, the high-speed plug connector can smoothly insert the corresponding socket connector under the condition of 180 degrees rotation to perform high-speed signal transmission. The two terminal groups are respectively disposed on the inner surface of the top plate 111 of the fixed base 11 of the insulative housing 10 and the inner surface of the bottom plate 112.

Each terminal group has a plurality of conductive terminals 20, respectively. The plurality of conductive terminals 20 of one of the terminal groups are respectively disposed in the upper terminal slots 1110 of the top plate 111 of the fixed base 11, and the conductive terminals 20 of the other terminal group are respectively disposed in the lower terminal slots 1120 of the bottom plate 112 of the fixed base 11. . Each of the conductive terminals 20 has a fixed section 21, an electrical contact section 22 and a soldering section 23. The fixing section 21 is disposed on the top plate 111 or the bottom plate 112 of the fixed base. The electrical contact section 22 extends forwardly from the fixing section 21 into the insertion space 100. The welding section 23 extends rearward from the fixing section 21 and is disposed. On the top or bottom surface of the extension panel 12. The electrical contact segments 22 of the two terminal groups are vertically connected, and the welding segments 23 of the two terminal groups are vertically connected. In addition, in the preferred embodiment of the present invention, each of the terminal groups can be disposed in the top plate 101 and the bottom plate 102 of the fixed base 11 of the insulative housing 10 in an insert-molding manner.

The two grounding strips 30 are respectively disposed in the assembly grooves 121 on the top and bottom surfaces of the extending plate 12 of the insulative housing 10, and are connected to each other. Both ends of each grounding piece 30 are bent and formed with a connecting portion 31 for connecting the connecting portion 31 of the other grounding piece 30 through welding or other fixing manner. The two grounding strips 30 are mainly responsible for filtering high frequency noise or static electricity from the conductive terminals 20 or the cables 80.

An accommodating space 400 is formed in the shielding case 40 to receive the insulating body 10 .

The cable 80 is disposed on the insulative housing 10 and electrically connected to the two terminal groups. The cable 80 has a two-wire group, and the two wire groups are respectively disposed on the top surface and the bottom surface of the extension plate 12, respectively corresponding to the two terminal groups. And corresponding to two grounding strips 30 respectively, each line group has a plurality of coaxial lines 90, and each of the coaxial lines 90 has A conductive core 91, an inner insulating layer 92, a woven layer 93 and an outer insulating layer 94, the conductive core 91 is electrically connected to the corresponding conductive terminal 20 soldering section 23, the inner insulating layer 92 is covered with the conductive core 91, and the braided layer 93 The inner insulating layer 92 is covered and electrically connected to the corresponding grounding piece 30. Further, the outer insulating layer 94 covers the braid layer 93.

The upper shield cover 50 and the lower shield cover 60 respectively cover the extension plate 12, the welding section 23 of the conductive terminal 20, and the end of the coaxial line 90 in an upper and lower clamping manner. In addition, a fixing hole 51 is formed on each of the two sides of the upper shielding cover 50, and a fixing fastener 61 is respectively formed on both sides of the lower shielding cover 60 to be respectively fastened to the fixing hole 51.

The outer protective casing 70 is wrapped around the extension plate 12, the upper shield cover 50, the lower shield cover 60, and the end of the cable 80.

Referring to FIG. 8, in the second embodiment of the present invention, a connecting piece 47 is extended at the rear end of the shielding case 40a. The end of the connecting piece 47 is soldered or otherwise electrically connected to at least one of the grounding pieces 30. Static electricity or other noise on the grounding piece 30 can be led out of the shielding case 40 through the connecting piece 47, further avoiding interference of high frequency signals.

By the above technical means, the plug electrical connector of the invention has the following advantages:

1. The two grounding lugs 30 of the high-speed plug electrical connector are soldered or otherwise fixed and electrically connected to the braided layers 93 of all the coaxial wires 90, and the soldering segments 23 of the conductive terminals 20 are also soldered or otherwise connected to the coaxial wires. The conductive core wires 91 of 90 are fixed and electrically connected. Thereby, the grounding strip 30 effectively grounds all the coaxial lines 90, avoiding signal interference between the coaxial lines 90 or signal interference between the conductive terminals 20.

2. Static electricity or other noise on the grounding piece 30 can be transmitted through the connecting piece 47 of the shielding case 40a and guided by the shielding case 40a to further avoid interference of high frequency signals.

3. In addition, the present invention is a USB Type C connector, in which the insulative housing 10 and the shielded housing 40 are vertically symmetrical, and the two terminal groups are centered on the insertion space 110 of the insulative housing 10. They are point-symmetric to each other for the center of symmetry, so that the high-speed plug electrical connector can be inserted in a positive or negative insertion manner when inserting a corresponding socket connector without any foolproof measures.

100‧‧‧Dock space

40‧‧‧Shielded enclosure

70‧‧‧ outer protective shell

80‧‧‧ cable

Claims (10)

A plug electrical connector includes: an insulative housing having a fixed base and an extension plate having a top plate, a bottom plate and two opposite sidewalls disposed between the top plate and the bottom plate The front end of the base is formed with a socket space between the top plate, the bottom plate and the two side walls, and the extension plate protrudes rearward from the rear end of the fixed base; the two terminal groups are symmetric with the center point of the insertion space The centers are symmetrical with each other, and are respectively disposed on the inner surface of the top plate of the fixed base of the insulating body and the inner surface of the bottom plate, and each of the terminal groups respectively has a plurality of conductive terminals, and each of the conductive terminals has a fixed section and a self extending from the fixed section. a contact segment and a welding segment disposed on a top surface or a bottom surface of the extension plate, wherein the electrical contact segments of the two terminal groups are vertically connected, and the welding segments of the two terminal groups are vertically connected; the two grounding plates are respectively disposed at the a top surface and a bottom surface of the extension plate of the insulative housing are connected to each other, and two ends of each grounding piece are respectively bent to form a connecting portion for connecting the connecting portion of the other grounding piece; a shielding case, an accommodating space is formed on the shielding housing to accommodate the insulating body; and a cable is electrically connected to the two terminal groups, the cable has a two-wire group, and the two wire groups are respectively disposed at The top surface and the bottom surface of the extension plate respectively correspond to two terminal groups, and respectively correspond to two grounding pieces, each wire group has a plurality of coaxial lines, and each of the coaxial wires has a conductive core wire, an inner insulating layer and a braid layer, and the conductive core wire The conductive terminal is electrically connected to the corresponding conductive terminal, and the inner insulating layer covers the conductive core, and the woven layer covers the inner insulating layer and is electrically connected to the corresponding grounding piece. The plug electrical connector of claim 1, wherein a rear end of the shielding shell extends with a connecting piece, and the connecting piece end is electrically connected to at least one of the grounding pieces. The plug electrical connector of claim 2, wherein the top surface and the bottom surface of the extension plate are respectively formed with an assembly groove; the two ground plates are respectively disposed in the two assembly slots. The plug electrical connector of any one of claims 1 to 3, wherein an upper through slot is formed through the top plate of the fixed base of the insulating body, and a through through slot is formed through the bottom plate; a top plate of the fixed base An upper elastic piece seat and a lower elastic piece seat are respectively disposed on the outer surface of the outer surface and the outer surface of the bottom plate, and the upper elastic piece seat is formed with a plurality of upper elastic pieces extending through the upper through groove and extending into the insertion space, and the lower elastic piece seat is formed with plural wearing A lower pressing elastic piece that penetrates the through groove and protrudes into the insertion space. The plug electrical connector of any one of claims 1 to 3, further comprising an upper shielding cover and a lower shielding cover, wherein the upper shielding cover and the lower shielding cover respectively cover the extension plate a welded section of the conductive terminal and an end of the coaxial line. The plug electrical connector of claim 5, wherein a fixing hole is formed in each of the two sides of the upper shielding cover; and a fixing fastener is respectively formed on each of the two sides of the lower shielding cover to be respectively fastened to the fixing hole. The plug electrical connector of any one of claims 1 to 3, wherein each of the coaxial wires further has an outer insulating layer covering the braid. The plug electrical connector of any one of claims 1 to 3, wherein the plug electrical connector further comprises an outer shield overlying the extension panel, the upper shield cover, the lower shield cover, and the end of the cable shell. The plug electrical connector of any one of claims 1 to 3, wherein each of the terminal sets is respectively disposed in an insert-molding manner on the top plate and the bottom plate of the fixed base of the insulative housing. The plug electrical connector of any one of claims 1 to 3, wherein a plurality of upper terminal slots are formed on an inner surface of the top surface of the fixed base to accommodate a plurality of conductive terminals of one of the terminal groups, and an inner surface of the bottom plate is formed The lower terminal slot accommodates the plurality of conductive terminals of the other terminal set.