CN115133314A

CN115133314A - Plug connector

Info

Publication number: CN115133314A
Application number: CN202210208518.9A
Authority: CN
Inventors: 特伦斯·F·李托
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2021-03-26
Filing date: 2022-03-04
Publication date: 2022-09-30
Also published as: TWM637269U

Abstract

A plug connector comprises a terminal module and a shell, wherein the terminal module comprises an upper module and a lower module which are stacked mutually, the upper module comprises an upper insulator, an upper terminal, an upper cable connected with the upper terminal and an upper metal shell fixed on the upper side surface of the upper insulator, and the lower module comprises a lower insulator, a lower terminal, a lower cable connected with the lower terminal and a lower metal shell fixed on the lower side surface of the lower insulator. The inner conductors of the cables are respectively soldered to the differential terminal pairs. The front elastic fingers arranged on the upper metal shell respectively contact the grounding terminals of the upper terminals one by one, and the rear elastic fingers respectively contact the shielding layers of the upper cables one by one. The upper metal shell of the invention simultaneously contacts the grounding terminal and the shielding layer of the cable, thereby achieving a plurality of grounding points and effectively improving the high-frequency performance of the cable connector. The housing further holds a resilient latch member positioned adjacent the underside of the lower dielectric body of the housing to reduce the overall height of the cable connector above the circuit board.

Description

Plug connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to a plug connector.

[ background of the invention ]

The plug connector is typically connected to a cable and the receptacle connector is typically soldered to a circuit board. At present, the plug connector generally uses a daughter card, namely, different edges of one circuit board are provided with golden fingers, the golden fingers are connected through a circuit, the golden finger at one end is inserted into the socket connector, and the golden finger at the other end is used for being connected with a cable. However, the plug connectors using daughter cards may be relatively large in size. Nowadays, more and more systems using cables instead of circuit boards are used for signal transmission in high-speed systems, but the requirement for high-frequency performance is inevitably increased.

Therefore, there is a need to provide an improved plug connector to solve the above problems.

[ summary of the invention ]

The technical scheme to be solved by the invention is as follows: a plug connector is provided which improves electrical performance.

In order to achieve the purpose, the invention adopts the following technical scheme: a plug connector comprises a terminal module and a shell enclosing the terminal module, wherein the terminal module comprises an upper module and a lower module which are stacked mutually, the upper module comprises an upper insulator, an upper terminal fixed on the upper insulator, an upper cable connected with the upper terminal and an upper metal shell fixed on the upper side surface of the upper insulator, the lower module comprises a lower insulator, a lower terminal fixed on the lower insulator, a lower cable connected with the lower terminal and a lower metal shell fixed on the lower side surface of the lower insulator, and the upper cable and the lower cable respectively comprise a pair of inner conductors, an inner insulating layer, a shielding layer and an outer insulating layer which are wrapped from inside to outside; the upper terminal and the lower terminal respectively comprise a differential terminal pair and a grounding terminal, and the pair of inner conductors are respectively and electrically connected with the differential terminal pair; the upper metal shell is provided with a plurality of front elastic fingers and a plurality of rear elastic fingers, the front elastic fingers are respectively and mechanically and electrically connected with the grounding terminal of the upper terminal one by one, and the rear elastic fingers are respectively and mechanically and electrically connected with the shielding layer of the upper cable one by one.

Compared with the prior art, the upper metal shell of the cable connector simultaneously contacts the grounding terminal and the shielding layer of the cable, so that a plurality of grounding points are achieved, and the high-frequency performance of the cable connector can be effectively improved.

In order to achieve the purpose, the invention adopts the following other technical scheme: a plug connector comprises a terminal module and a shell wrapping the terminal module, wherein the terminal module is provided with an inclined front end face and comprises an upper module and a lower module which are stacked with each other, the upper module comprises an upper insulator, an upper terminal fixed on the upper insulator and an upper cable connected with the upper terminal, and the lower module comprises a lower insulator, a lower terminal fixed on the lower insulator and a lower cable connected with the lower terminal; the shell is fixed with an elastic locking piece which is positioned at the lower side face of the shell close to the lower insulator.

Compared with the prior art, the elastic locking fastener is positioned on the lower side surface of the shell, so that the height of the cable connector on a circuit board can be integrally reduced.

[ description of the drawings ]

Fig. 1 is a perspective view of a cable connector of the present invention.

Fig. 2 is another perspective view of the cable connector of fig. 1.

Fig. 3 is another perspective view of the cable connector of fig. 1.

Fig. 4 is an exploded perspective view of the cable connector of fig. 1.

Fig. 5 is an exploded perspective view of the cable connector of fig. 4, further disassembled.

Fig. 6 is an exploded perspective view of the cable connector of fig. 5 at another angle.

Fig. 7 is an exploded perspective view of the cable connector of fig. 5 at another angle.

Fig. 8 is an exploded perspective view of the cable connector of fig. 5 at another angle.

Fig. 9 is an exploded perspective view of the terminal module of fig. 6, further disassembled.

Fig. 10 is an exploded perspective view of the terminal module of fig. 9 from another angle.

Fig. 11 is an exploded perspective view of the terminal module of fig. 9 further exploded.

Fig. 12 is an exploded perspective view of the terminal module of fig. 11 from another angle.

Fig. 13 is an exploded perspective view of the terminal module of fig. 11 further exploded.

Fig. 14 is an exploded perspective view of the terminal module of fig. 13 from another angle.

Fig. 15 is a perspective view of the upper metal shell of fig. 13.

Fig. 16 is a perspective view from another angle of fig. 15.

Fig. 17 is a cross-sectional view of the cable connector to show the positional configuration of the differential terminal pairs.

Fig. 18 is a sectional view of the cable connector to show a positional structure of the ground terminal. .

[ description of element symbols ]

Cable connector 10 lower module 160 upper cable 200

Inner conductor 202 of terminal 170 under front end face 101

Insulating layer 204 within differential terminal pair 172 of terminal module 100

Shielding layer 206 of ground terminal 174 of upper module 110

Upper terminal 120 contact 176 outer insulating layer 206

Differential terminal pair 122 securing part 177 lower cable 210

Ground terminal 124 connecting portion 178 inner conductor 212

Lower contact 126 grounding tab 180 inner insulation layer 214

Insulator 182 shielding layer 216 under anchor 127

Outer insulating layer 218 of channel 183 on connecting portion 128

Upper grounding plate 130 lower channel 184 housing 300

Upper insulator 140, upper boss 185, upper shell 302

The raised portion 142, the first underbump 186, and the lower housing 304

Second lower protrusion 187 of second channel 144 first channel 301

Projection 146 notch 188 spring catch member 310

Upper metal shell 150 and lower metal shell 190

Front opening 151 resilient fingers 192

Front opening 193 of front resilient finger 152

Rear opening 153 rear opening 195

Rear elastic finger 154 fixing ear 197

Fixing ear 155

Partition 156

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

For a better understanding of the objects, structures, features, and functions of the invention, reference should be made to the drawings and detailed description of the invention.

Referring to fig. 1-18, the cable connector 10 is for mating with a receptacle connector (not shown) and includes a terminal module 100 and a housing 300 enclosing the terminal module 100 therein. The terminal module 100 includes an upper module 110 and a lower module 160, which are stacked on each other. The upper module 110 includes a plurality of upper terminals 120, an upper insulator 140 integrally molded on the upper terminals, and an upper metal shell 150 made of metal, wherein the upper metal shell 150 is fixed on the upper insulator 140, and the upper terminals 120 are fixed on the upper insulator 140. The upper terminal 120 includes a plurality of differential terminal pairs 122 and a plurality of ground terminals 124, two adjacent differential signal terminals constitute one of the differential terminal pairs 122, and the differential terminal pairs 122 and the ground terminals 124 are alternately arranged with each other in the transverse direction. Each upper terminal 120 includes a contact portion 126 with elasticity at the front end, a connection portion 128 at the rear end, and an intermediate fixing portion 127 therebetween, the connection portion 128 is connected to the corresponding upper cable 200, the receptacle connector is mounted on a circuit board, the circuit board is provided with a conductive sheet, and after the contact portion 126 is inserted into the receptacle connector, the contact portion abuts against the conductive sheet of the circuit board, thereby forming a conductive path. The ends of the connecting portions 128 are connected together by upper grounding tabs 130 that extend in an upward direction. Correspondingly, each upper cable 200 comprises a pair of inner conductors 202, an inner insulating layer 204 wrapped outside the inner conductors 202, a shielding layer 206 comprising the inner insulating layer and an outer insulating layer 206 wrapped outside the shielding layer, namely, the upper cable is sequentially wrapped with a pair of inner conductors 202, the inner insulating layer 204, the shielding layer 206 and the outer insulating layer 206 from inside to outside; the inner conductors 202 are electrically and mechanically connected to the connecting portions 128 of the corresponding differential terminal pairs, and the shielding layer 206 is electrically and mechanically connected to the upper ground plate 130. It is noted that the connecting portion 128 and the fixing portion 127 are coplanar with each other, and the upper ground 130 is offset from the connecting portion 128, so as to match the inner conductor 202 and the shielding layer 206.

The upper insulator 140 is formed with a plurality of hollow elevated portions 142, and the elevated portions 142 are vertically aligned with the fixing portions 127 of the differential terminal pair 122 for supporting the upper metal shell 150, and at the same time, the hollow structure makes the fixing portions 127 face the upper metal shell 150, improving electrical performance. A plurality of second channels 144 are formed in a lower surface of the upper insulator 140 for receiving or passing the upper terminals 120 therethrough, as will be described in detail below. A pair of protrusions 146 are formed at both ends of the upper insulator 140 for fixing the upper metal shell 150.

The upper metal shell 150 includes a row of front elastic fingers 152 at the front end, a row of rear elastic fingers 154 at the rear end, and a row of separating portions 156 in the middle, the front elastic fingers 150 are folded back downward from the front edge of the upper metal shell to abut against the fixing portions 127 of the ground terminals 126 in the upper terminals, the rear elastic fingers 154 are bent downward to abut against the shielding layer 206 of the upper cable 200, so that the rear elastic fingers 154 and the ground members 130 together clamp the shielding layer 206 in the vertical direction, and the separating portions 156 separate the connecting portions 128 of the adjacent differential terminal pairs 122 from each other. The front resilient fingers 152 are aligned with the partitions 156 in the front-to-rear direction, and the front resilient fingers 152 and the rear resilient fingers 154 are offset from each other in the lateral direction by a distance. The upper metal shell 150 further includes a pair of front openings 151 for receiving the projections 146 to secure the upper metal shell 150 to the upper insulator 140. The upper metal shell 150 further includes a pair of rear openings 153 and fixing lugs 155.

Correspondingly, the lower module 160 includes a row of lower terminals 170, a lower insulator 182 integrally molded on the lower terminals, and a lower metal shell 190 made of metal, wherein the lower metal shell 190 is fixed on the lower insulator 182, and the lower terminals are fixed on the lower insulator 182. The lower terminal 170 includes a plurality of differential terminal pairs 172 and a plurality of ground terminals 174, and the differential terminal pairs 172 and the ground terminals 174 are alternately arranged with each other in the lateral direction. Each lower terminal 170 includes a contact portion 176 having elasticity at a front end, a connection portion 178 at a rear end, and an intermediate fixing portion 177 therebetween, and the contact portion 176 is partially received in the second channel 144 of the upper insulator 140. Similar to the upper terminals, the connecting portions 178 of the ground terminals are connected together by a transversely extending lower ground tab 180. As with the upper cable 200, each lower cable 210 includes a pair of inner conductors 212, an inner insulating layer 214 wrapped around the inner conductors, a shielding layer 216 surrounding the inner insulating layer, and an outer insulating layer 218 wrapped around the shielding layer, the pair of inner conductors 212 electrically and mechanically connect to the connecting portions 128 of the corresponding differential terminal pairs 172, and the shielding layer 216 electrically and mechanically connects to the lower grounding plate 180.

The lower insulator 180 is formed with a row of upper channels 183 for receiving the corresponding upper cables 200, respectively, and a row of lower channels 184 for receiving the lower cables 210. The lower insulator 180 further includes a pair of upper protrusions 185 and a pair of first lower protrusions 186, a pair of second lower protrusions 187 and a pair of notches 188. The upper protrusion 185 is received in the rear opening 153.

The lower housing 190 includes a row of resilient fingers 192, a pair of front openings 193, a pair of rear openings 195 and a pair of securing ears 197. The elastic fingers 192 abut against the shielding layers 216 of the lower cables 210, respectively, so that the elastic fingers and the ground member 180 together clamp the shielding layers 216 of the lower cables 210 in the vertical direction. The front opening 193 receives the first lower protrusion 186, and the rear opening 195 receives the corresponding second lower protrusion 187. The fixing lugs 197 are fixed in the corresponding notches 188.

The housing 300 includes an upper housing 302 and a lower housing 304, the upper and lower housings commonly hold the terminal module 100 therein, the first slots 301 of the upper housing 302 respectively receive the contact portions 126 of the upper terminals 120, and the lower housing 304 is provided with a resilient locking member 310 for fixing with the housing of the receptacle connector.

The improvement of the invention is that the plurality of elastic fingers of the metal shell contact the grounding terminal and the shielding layer of the cable, and the separating part of the metal shell separates the differential terminal pairs from each other, so that the metal shell establishes a separator for shielding signal interference, namely a cross resistance transmitter. The upper metal shell of the invention simultaneously contacts the grounding terminal and the shielding layer of the cable, thereby achieving a plurality of grounding points and effectively improving the high-frequency performance of the cable connector. Another feature of the present invention is that the cable connector 10 is inserted into a receptacle connector at an angle, and the resilient locking members 310 are hidden under the inserted virtual line at the angle. The front end face 101 of the cable connector 10 extends in an oblique direction to allow the cable connector 10 to be inserted in the oblique direction. The upper module is located above the lower module and protrudes forward than the lower module, and the resilient latch 310 is located on the lower side of the housing 300 adjacent to the lower insulator. The elastic locking piece is positioned on the lower side surface of the shell, so that the height of the cable connector on a circuit board can be reduced integrally.

The above-described embodiments are illustrative, but not restrictive, of the present invention, and any equivalent variations that may be made in the details of the present invention by a person of ordinary skill in the art upon reading the present specification are intended to be encompassed by the present claims.

Claims

1. A plug connector comprises a terminal module and a shell enclosing the terminal module, wherein the terminal module comprises an upper module and a lower module which are stacked with each other, the upper module comprises an upper insulator, an upper terminal fixed on the upper insulator, an upper cable connected with the upper terminal and an upper metal shell fixed on the upper side surface of the upper insulator, the lower module comprises a lower insulator, a lower terminal fixed on the lower insulator, a lower cable connected with the lower terminal and a lower metal shell fixed on the lower side surface of the lower insulator, and the upper cable and the lower cable respectively comprise a pair of inner conductors, an inner insulating layer, a shielding layer and an outer insulating layer which are wrapped from inside to outside; the upper terminal and the lower terminal respectively comprise a differential terminal pair and a grounding terminal, and the pair of inner conductors are respectively and electrically connected with the differential terminal pair; the method is characterized in that: the upper metal shell is provided with a plurality of front elastic fingers and a plurality of rear elastic fingers, the front elastic fingers are respectively and mechanically and electrically connected with the grounding terminal of the upper terminal one by one, and the rear elastic fingers are respectively and mechanically and electrically connected with the shielding layer of the upper cable one by one.

2. The plug connector of claim 1, wherein: the lower metal shell is provided with a plurality of elastic fingers which are mechanically and electrically connected with the shielding layer of the lower cable one by one.

3. The plug connector of claim 1, wherein: each of the upper and lower terminals includes a contact portion at a front end, a connection portion at a rear end, and a fixing portion for connecting the contact portion and the connection portion, the connection portion of the ground terminal of the upper terminal is integrally connected by an upper ground plate extending in a transverse direction, and a shielding layer of the upper cable is welded to the ground plate; the connecting portion of the grounding terminal in the lower terminal is integrally connected with the lower grounding sheet which extends transversely, and the shielding layer of the lower cable is welded on the lower grounding sheet.

4. The plug connector of claim 1, wherein: the front and rear elastic fingers are offset from each other in a transverse direction.

5. The plug connector of claim 1, wherein: each upper terminal comprises a contact part positioned at the front end, a connecting part positioned at the rear end and a fixing part for connecting the contact part and the connecting part, the upper insulator is provided with a hollow heightening part, and the heightening part is aligned with the fixing part so that the fixing part of the signal terminal is exposed upwards and faces the upper metal shell.

6. The plug connector of claim 1, wherein: the upper metal shell is provided with a plurality of separating parts positioned between the front elastic fingers and the rear elastic fingers, and the separating parts separate adjacent differential terminal pairs.

7. A plug connector comprises a terminal module and a shell wrapping the terminal module, wherein the terminal module is provided with an inclined front end face and comprises an upper module and a lower module which are stacked with each other, the upper module comprises an upper insulator, an upper terminal fixed on the upper insulator and an upper cable connected with the upper terminal, and the lower module comprises a lower insulator, a lower terminal fixed on the lower insulator and a lower cable connected with the lower terminal; the method is characterized in that: the shell is fixed with an elastic locking piece which is positioned at the lower side face of the shell close to the lower insulator.

8. The plug connector of claim 7, wherein: the upper insulator is provided with a plurality of first channels through which the contact portions included in the lower terminal pass.

9. The plug connector of claim 7, wherein: the inner side surface of the shell is provided with a second channel, and the contact part of the upper terminal passes through the second channel.

10. The plug connector of claim 8, wherein: the elastic locking fastener and the second channel are respectively positioned on the inner side and the outer side of the shell.