TW201605126A - Electric plug connector - Google Patents

Abstract

An electric plug connector comprises an insulator, two terminal sets, a circuit board, a shielding shell, a cable, an upper shield, a lower shield and a protection shell. Each terminal set is provided with a plurality of conductive terminals. The circuit board is arranged on the insulator and provided with a ground piece. The cable is provided with a plurality of coaxial wires connected with the conductive terminals in the terminal sets, and knitting layers in the coaxial wires are electrically connected with the ground piece by welding or other fixing ways to reduce high-frequency noise between the conductive terminals and the coaxial wires, therefore, stability and efficiency in high-frequency signal transmission are improved.

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, each of the coaxial wires having 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 welding. However, the structure in which the braided layer of the cable and the grounding wire are respectively soldered into the metal casing requires a process of drawing a part of the upper braid layer of the core wire and then welding it to the inner surface of the metal casing, and its structure and manufacture are both Complex and difficult, when the number of coaxial lines is large, the welding procedure of the braid will be more cumbersome and prone to flaws, resulting in poor grounding 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 connector does not indicate how to ground the coaxial cable. In the absence of a grounded structure, the conductive terminals will generate signal interference with 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 purpose, the aforementioned plug electrical connector includes:

An insulative housing having a top plate, a bottom plate and two opposite side walls disposed between the top plate and the bottom plate, and a plug space between the top plate, the bottom plate and the two side walls is formed at a front end of the insulating body ;

The two terminal groups are point-symmetric with each other at a center of the insertion space, and are respectively disposed on the inner surface of the top plate 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, each of which is electrically conductive The terminals respectively have a fixing section, an electrical contact section extending forward from the fixing section, and a welding section extending backward from the fixing section, wherein the electrical contact sections of the two terminal groups are vertically connected, and the welding sections of the two terminal groups are Up and down;

a circuit board disposed at a rear end of the insulating body and having two opposite surfaces, two sets of a plurality of terminal pads, two sets of plurality of wire pads, and a grounding piece, wherein each of the plurality of terminal pads is respectively disposed on the circuit board On the surface, the terminal pads of the respective surfaces are respectively fixed with corresponding conductive terminal soldering segments, and each of the plurality of wire bonding pads is disposed on each surface of the circuit board, and the grounding strip is disposed on the surface. One of the surfaces of the circuit board;

a shielding case having an accommodating space formed therein to accommodate the insulating body;

a cable is electrically connected to the terminal group, the cable has a first wire group, the first wire group is disposed on one surface of the circuit board, and the first wire group has a plurality of coaxial wires, each of the wires The coaxial line has a conductive core wire, an inner insulating layer and a braided layer, and the conductive core wire is fixed on a corresponding wire bonding pad on one surface of the circuit board, the inner insulating layer covers the conductive core wire, and the braided layer covers the inner wire The insulating layer is electrically connected to the grounding piece.

By the above technical means, the circuit board grounding piece of the high-speed plug electrical connector of the present invention is fixed and electrically connected with the braid of all coaxial wires by welding or other means, and the welding section of the conductive terminal is also welded or otherwise The coaxial core conductive cores 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 a center of the insertion space of the insulating body, so that the high-speed plug electrical connector can be inserted into the corresponding socket connector. Plug in by plug-in or reverse plug-in without any foolproof measures.

A connecting piece is extended on the rear end of the shielding shell, and the end of the connecting piece is electrically connected to the grounding piece of the circuit board.

An upper through slot communicating with the insertion space is formed on the top plate of the insulative housing, and a lower through slot is formed on the bottom plate for connecting the insertion space, and an upper elastic piece seat is disposed on the outer surface of the top plate, and is disposed on the outer surface of the bottom plate There is a spring piece seat, and the upper elastic piece seat is formed with a plurality of upper elastic pieces which pass through the upper through groove and protrude into the insertion space, and the lower elastic piece seat is formed with a plurality of lower elastic pieces which pass through the lower through groove and protrude into the insertion space.

In the plug electrical connector, an upper shield cover and a lower shield cover respectively cover the circuit board, the soldering portion of the conductive terminal, and the end of the coaxial line.

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

A mounting slot is formed on each of the two sides of the insulative housing, and a resilient fastening member is disposed in each of the mounting slots. Each of the elastic fasteners has a resilient contact portion extending into the insertion space. And a fixing piece is formed on the rear end; the circuit board is formed with two fixing pads (named in the welding direction) to respectively fix the fixing pieces of the elastic fastener.

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 circuit board, the upper shield cover, the lower shield cover, and the end of the cable.

The cable further has a second wire set having a plurality of wires for soldering to the wire pads of the circuit board opposite to the other surface of the first wire set, respectively.

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

A plurality of upper terminal slots are formed on the inner surface of the insulating body top plate to accommodate the one of the terminal groups, and the inner surface of the insulating body bottom plate is formed with a plurality of lower terminal slots to accommodate the other terminal groups.

A fitting groove is formed on one surface of the circuit board, and a conductive sheet is disposed in the fitting groove, and the grounding piece is disposed in the fitting groove and contacts the conductive sheet.

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 Connector Association Specification Universal Serial Bus Type-C Cable and Connector Specification version 0.98C.

Referring to FIG. 3 to FIG. 6 and FIG. 10 , the plug electrical connector of the present invention comprises: an insulative housing 10 , a two terminal set, a circuit board 30 , a shielded outer casing 40 , a cable 80 , an upper shield cover 50 , The shield cover 60 and an outer protective case 70 are next.

The insulative housing 10 has a top plate 101, a bottom plate 102 and two side walls 103 opposite to each other and disposed between the top plate 101 and the bottom plate 102. The front end of the insulative housing 10 is formed between the top plate 101, the bottom plate 102 and the side walls 103. The docking space 100. In addition, a plurality of upper terminal slots 1010 are formed on the inner surface of the top plate 101 of the insulative housing 10, and a plurality of lower terminal slots 1020 corresponding to the upper terminal slots 1010 are formed on the inner surface of the bottom plate 102. An upper through slot 105 is formed in the top plate 101, and a lower through slot 106 is formed on the bottom plate 102. The upper surface of the top plate 101 is provided with an upper elastic plate seat 15 on the bottom plate. The outer surface of the 102 is provided with a lower elastic piece seat 16, and the upper elastic piece seat 15 is formed with a plurality of upper elastic pieces 151 which pass through the upper through grooves 105 and protrude into the insertion space 100, and the lower elastic piece seat 16 is formed with a plurality of through through grooves. 106 and protrudes into the lower elastic piece 161 of the docking space 100. Further, a mounting slot 11 is formed on each of the two sides of the insulative housing 10, and a resilient latching member 17 is disposed in each of the mounting slots 11. The elastic contact portion 171 is inserted into the insertion space 100 so as to be able to be fastened and inserted into the tongue of the other corresponding socket electrical connector of the insertion space 100, and a fixing piece 172 is formed on the rear end of the elastic fastener 17. The elastic fastener 17 can tightly grasp the socket electrical connector combined with the plug electrical connector to prevent the plug electrical connector from accidentally coming off the socket electrical connector, thereby improving the stability of the signal transmission operation.

Referring to FIG. 7 further, the two terminal groups are point-symmetric with each other with the center point of the docking space 100 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 electrical connector under the condition of 180 degrees of rotation to perform high-speed signal transmission. The two terminal groups are respectively disposed on the inner surface of the top plate 101 of the insulative housing 10 and the inner surface of the bottom plate 102.

Each of the terminal groups has a plurality of conductive terminals 20, respectively. The plurality of conductive terminals 20 of one of the terminal sets are respectively disposed in the upper terminal slots 1010 of the top plate 101 of the insulative housing 10, and the conductive terminals 20 of the other terminal sets are respectively disposed in the lower terminal slots 1020 of the bottom plate 102 of the insulative housing 10. 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 101 or the bottom plate 102 of the insulative housing 10. The electrical contact section 22 extends forwardly from the fixing section 21 into the 100 of the insertion space 100, and the welding section 23 extends rearward from the fixing section 21. 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 may be disposed in the top plate 101 and the bottom plate 102 of the insulative housing 10 in an insert-molding manner.

The circuit board 30 is disposed at the rear end of the insulative housing 10 and has two opposite surfaces, a fitting slot 300, a conductive strip 305, two sets of multiple terminal pads 31, two sets of plurality of lead pads 33, and a grounding strip 35.

The two opposite surfaces of the circuit board 30 can be a top surface and a bottom surface, respectively. A semiconductor wafer can be disposed on the circuit board 30, such as a signal processing chip that converts a communication protocol signal into another communication protocol signal. In addition, the circuit board 30 is formed with two fixing pads 32 for respectively fixing the fixing pieces 172 of the elastic fasteners 17 by welding or other fixing means. A fitting groove 300 is formed on one surface of the circuit board 30, and a conductive sheet 305 is disposed in the fitting groove 300.

Each of the plurality of terminal pads 31 is disposed on both surfaces of the circuit board 30, and the terminal pads 31 on each of the surfaces of the circuit board 30 are respectively fixed to the corresponding conductive terminals 20 soldering segments 31. Each of the plurality of wire bonding pads 33 is disposed on each surface of the circuit board 30. The plurality of wire bonding pads 33 of the plurality of wire bonding pads 33 are electrically connected to the corresponding terminal pads 31, and the electrical connection manner is The wires are buried through wires buried inside the circuit board 30 (not shown).

The grounding strip 35 is disposed in the fitting groove 300 of one surface of the circuit board 30 and is in contact with the conductive sheet 305, and is mainly responsible for filtering high frequency noise or static electricity from the conductive terminal 20 or the cable 80.

The shielding case 40 is made of metal, and an accommodating space 400 is formed on the shielding case 40 to accommodate the insulative housing 10.

The cable 80 is disposed on the insulative housing 10 and electrically connected to the terminal set. The cable 80 has a first wire set 801 and a second wire set 802.

The first wire group 801 is disposed on one surface of the circuit board 30, such as a top surface. Each of the first wire groups 801 has a plurality of coaxial wires 90, and each of the coaxial wires 90 has a conductive core 91 and an inner insulating layer 92. A woven layer 93 and an outer insulating layer 94 are fixed on the corresponding wire pads 33 on one surface of the circuit board 30. The inner insulating layer 92 covers the conductive core 91. The woven layer 93 covers the inner insulating layer 92 and is electrically connected to the grounding piece 35. The outer insulating layer 94 covers the braid layer 93.

The second wire set 802 has a plurality of wires 90a for soldering to the wire pads 33 on the circuit board 30 with respect to the other surface of the first wire group 801, respectively.

The upper shield cover 50 and the lower shield cover 60 respectively cover the circuit board 30, the soldering 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 case 70 is wrapped around the circuit board 30, 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, and the end of the connecting piece 47 is soldered or otherwise electrically connected to the grounding piece 35. Static electricity or other noise on the 35 can be led out of the shielded casing 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 grounding lug 35 on the circuit board 30 of the high-speed plug electrical connector is soldered or otherwise fixed and electrically connected to the braided layer 93 of all of the coaxial wires 90, and the soldering section 23 of the conductive terminal 20 is also soldered or otherwise The manner is fixed and electrically connected to the conductive core 91 of the coaxial line 90. Thereby, the grounding strip 35 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 strip 35 can be transmitted through the connecting piece 47 of the shielding case 40 and guided by the shielding case 40 to further avoid interference of high frequency signals.

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 point-symmetric with each other with the center point of the insertion space 100 of the insulative housing 10 as a center of symmetry. Therefore, when the high-speed plug electrical connector is inserted into the corresponding socket connector, it can be inserted in a positive or negative insertion manner without any foolproof measures.

10‧‧‧Insulated body
100‧‧‧Dock space
101‧‧‧ top board
1010‧‧‧Upper terminal slot
102‧‧‧floor
1020‧‧‧ Lower terminal slot
103‧‧‧ side wall
105‧‧‧Upper through slot
106‧‧‧Under the slot
11‧‧‧Installation slot
15‧‧‧Upper slide seat
151‧‧‧Upper film
16‧‧‧Sheeling seat
161‧‧‧Shraps
171‧‧‧Flexible contact
172‧‧‧Fixed tablets
20‧‧‧Electrical terminals
21‧‧‧ fixed section
22‧‧‧Electrical contact
23‧‧‧welding section
30‧‧‧ boards
300‧‧‧ fitting slot
305‧‧‧Electrical sheet
31‧‧‧Terminal pads
32‧‧‧Fixed mat
33‧‧‧Wire pad
35‧‧‧ Grounding piece
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
801‧‧‧First line group
802‧‧‧ second line group
90‧‧‧ coaxial cable
90a‧‧‧Wire
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 shielding housing, the upper shield cover, the lower shield cover, and the outer protective casing in the first embodiment of the present invention.

Fig. 4 is another perspective view showing the shielding case, the upper shield cover, the lower shield cover, and the outer protective case in 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 present invention with the outer protective casing, the upper shield cover, the lower shield cover and the cable omitted.

100‧‧‧Dock space

40‧‧‧Shielded enclosure

70‧‧‧ outer protective shell

80‧‧‧ cable

Claims (12)

A plug electrical connector, comprising: an insulative housing having a top plate, a bottom plate and two opposite side walls disposed between the top plate and the bottom plate, wherein a front end of the insulating body is formed The top plate, the bottom plate and the insertion space between the two side walls; the two terminal groups are point-symmetric with each other at a center of the center of the insertion space, respectively disposed on the inner surface of the top plate and the inner surface of the bottom plate of the insulating body And each of the terminal groups has a plurality of conductive terminals, each of the conductive terminals respectively having a fixed segment, an electrical contact segment extending forward from the fixed segment, and a solder segment extending rearward from the fixed segment, wherein The electrical contact segments of the terminal group are vertically connected, and the welding segments of the two terminal groups are vertically connected; a circuit board is disposed at the rear end of the insulating body, and has two opposite surfaces, two sets of multiple terminal pads, and two sets of plural wires a pad and a grounding piece, each of the plurality of terminal pads is respectively disposed on both surfaces of the circuit board, and the terminal pads on each of the surfaces are respectively fixed correspondingly The soldering section of conductive terminals, each of the set plurality of wire bonding pads are provided on both surfaces of the circuit board, each of the of the ground plate disposed on a surface of the circuit board therein; a shield case which is formed an accommodating space The cable body is electrically connected to the terminal block, the cable has a first wire group, and the first wire group is disposed on one surface of the circuit board, the first wire group The plurality of coaxial wires each have a conductive core wire, an inner insulating layer and a braided layer. The conductive core wire is fixed on a corresponding wire bonding pad on one surface of the circuit board, and the inner insulating layer covers the conductive core wire. The woven layer covers the inner insulating layer and is electrically connected to the grounding piece. The plug electrical connector of claim 1, wherein a rear end of the shielding case extends with a connecting piece, and the end of the connecting piece is electrically connected to the grounding piece of the circuit board. The plug electrical connector of claim 2, wherein the top plate of the insulative housing has an upper through slot that communicates with the plug space, and a lower through slot that communicates with the plug space is formed on the bottom plate. An upper elastic piece seat is disposed on the outer surface of the top plate, and a lower elastic piece seat is disposed on 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 A lower elastic piece is formed on the lower through groove and protrudes into the insertion space. The plug electrical connector of claim 3, wherein an upper shield cover and a lower shield cover respectively cover the circuit board, the soldering portion of the conductive terminal, and the end of the coaxial line. The plug electrical connector of claim 4, 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 5, wherein a mounting slot communicating with the plug-in space is formed on each of the two sides of the insulative housing, and each of the mounting slots is provided with an elastic fastener. Each of the elastic fasteners is formed with a resilient contact portion extending into the insertion space, and a fixing piece is formed on the rear end. The circuit board is formed with two fixing pads to respectively fix the fixing pieces of the elastic fastener. The plug electrical connector of any one of claims 1 to 5, 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 5, wherein the plug electrical connector further comprises a cover over the circuit board, the upper shield cover, the lower shield cover, and the end of the cable Protective case. The plug electrical connector of any one of claims 1 to 5, wherein the cable further has a second wire set, the second wire set having a plurality of wires to be respectively soldered and fixed on the circuit board relative to the first The other surface of the wire set is on the wire bond pad. The plug electrical connector of any one of claims 1 to 5, wherein each of the terminal sets is disposed in an insert-molding manner on the top plate and the bottom plate of the insulative housing. The plug electrical connector of any one of claims 1 to 5, wherein a plurality of upper terminal slots are formed on an inner surface of the top surface of the insulating body to accommodate the one of the terminal sets, the inner surface of the insulating body bottom plate The plurality of lower terminal slots are formed to receive the other conductive terminals of the other terminal set. The plug electrical connector of any one of claims 1 to 5, wherein a fitting groove is formed on one surface of the circuit board, and a conductive piece is disposed in the fitting groove, and the grounding piece is disposed in the fitting groove. Inside and in contact with the conductive sheet.