Plug connector

Abstract

A plug connector includes a terminal module and a shell. The terminal module includes an upper module and a lower module stacked on each other. The upper module includes an upper insulator, an upper terminal, an upper cable connected to the upper terminal, and an upper metal shell fixed to the upper side of the upper insulator. The lower module includes a lower insulator, a lower terminal, a lower cable connected to the lower terminal, and a lower metal shell fixed to the lower side of the lower insulator. The inner conductors of the cables are respectively welded to the differential terminal pairs. The upper metal shell is provided with front elastic fingers that contact the grounding terminals of the upper terminals one by one, and the rear elastic fingers contact the shielding layer of the upper cable one by one. The upper metal shell of the present invention contacts the grounding terminal and the shielding layer of the cable at the same time to achieve multiple grounding points, which can effectively improve the high-frequency performance of the cable connector. The shell is further fixed with an elastic locking member, which is located at the lower side of the shell adjacent to the lower insulator, and can reduce the height of the cable connector on the circuit board as a whole.

Description

[Technical field]

[0001] The present invention relates to a plug connector. [Background technology]

[0002] Plug connectors are generally connected to cables, and socket connectors are generally soldered on circuit boards. At present, plug connectors generally use daughter cards, that is, gold fingers are set on different edges of a circuit board, and the gold fingers are connected through lines. The gold finger at one end is inserted into the socket connector, and the gold finger at the other end is used to connect to the cable. However, the plug connector using a daughter card will be larger in size. Now more and more systems use cables instead of circuit boards for signal transmission in high-speed systems, but it is inevitable that the requirements for high-frequency performance have increased.

[0003] Therefore, it is necessary to provide an improved plug connector to solve the above problems. [Summary of the invention]

[0004] The technical solution to be solved by the present invention is to provide a plug connector which improves electrical performance.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a plug connector, comprising a terminal module and a shell enclosing the terminal module therein, the terminal module comprising an upper module and a lower module stacked on each other, the upper module comprising an upper insulator, an upper terminal fixed to the upper insulator, an upper cable connected to the upper terminal, and an upper metal shell fixed to the upper side of the upper insulator, the lower module comprising a lower insulator, a lower terminal fixed to the lower insulator, a lower cable connected to the lower terminal, and a lower metal shell fixed to the lower side of the lower insulator, the upper and lower cables each comprising a pair of inner conductors, an inner insulating layer, a shielding layer, and an outer insulating layer wrapped in sequence from the inside to the outside; the upper and lower terminals each comprising a differential terminal pair and a grounding terminal, the pair of inner conductors respectively mechanically and electrically connecting 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 mechanically and electrically connected to the grounding terminal of the upper terminal, and the rear elastic fingers are respectively mechanically and electrically connected to the shielding layer of the upper cable.

[0006] Compared with the prior art, the upper metal shell of the present invention contacts the ground terminal and the shielding layer of the cable at the same time, achieving multiple grounding points, which can effectively improve the high-frequency performance of the cable connector.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following another technical solution: a plug connector, comprising a terminal module and a shell wrapping the terminal module therein, the terminal module is provided with an inclined front end surface and comprises an upper module and a lower module stacked on each other, the upper module comprises an upper insulator, an upper terminal fixed to the upper insulator and an upper cable connected to the upper terminal, the lower module comprises a lower insulator, a lower terminal fixed to the lower insulator and a lower cable connected to the lower terminal; the shell is fixed with an elastic locking member, and the elastic locking member is located at the lower side of the shell adjacent to the lower insulator.

[0008] Compared with the prior art, the elastic locking member of the present invention is located on the lower side of the housing, which can reduce the height of the cable connector on the circuit board as a whole.

Brief Description of the Drawings

[0009] Figure 1 It is a stereoscopic diagram of the cable connector of the present invention.

[0010] Figure 2 yes Figure 1 A three-dimensional view of the cable connector from another angle.

[0011] Figure 3 yes Figure 1 A three-dimensional view of the cable connector from another angle.

[0012] Figure 4 yes Figure 1 Exploded perspective view of the cable connector.

[0013] Figure 5 yes Figure 4 Exploded view of the cable connector being further disassembled.

[0014] Figure 6 yes Figure 5 Exploded view of the cable connector from another angle.

[0015] Figure 7 yes Figure 5 Exploded view of the cable connector from another angle.

[0016] Figure 8 yes Figure 5 Exploded view of the cable connector from another angle.

[0017] Fig. 9 yes Figure 6 A three-dimensional exploded view of the further disassembly of the middle terminal module.

[0018] Fig.10 yes Fig. 9 A three-dimensional exploded view of the terminal module from another angle.

[0019] Fig.11 yes Fig. 9 A three-dimensional exploded view of the terminal module further decomposed.

[0020] Fig.12 yes Fig.11 A three-dimensional exploded view of the terminal module from another angle.

[0021] Fig.13 yes Fig.11 A three-dimensional exploded view of the terminal module further decomposed.

[0022] Fig.14 yes Fig.13 A three-dimensional exploded view of the terminal module from another angle.

[0023] Fig.15 yes Fig.13 A three-dimensional view of the upper middle metal shell.

[0024] Fig.16 yes Fig.15 A three-dimensional image from another angle.

[0025] Fig.17 It is a cross-sectional view of the cable connector to show the location structure of the differential contact pair.

[0026] Fig.18 This is a cross-sectional view of the cable connector to show the location structure of the ground terminal.

[0027]

Component Symbol Description

[0028] Cable connector 10 Lower module 160 Upper cable 200

[0029] Front end face 101 Lower terminal 170 Inner conductor 202

[0030] Terminal module 100 Differential terminal pair 172 Inner insulation layer 204

[0031] Upper mold assembly 110 Ground terminal 174 Shielding layer 206

[0032] Upper terminal 120 Contact portion 176 Outer insulation layer 206

[0033] Differential terminal pair 122 Fixing portion 177 Lower cable 210

[0034] Ground terminal 124 Connection portion 178 Inner conductor 212

[0035] Contact portion 126 Lower ground plate 180 Inner insulation layer 214

[0036] Fixing portion 127 Lower insulator 182 Shielding layer 216

[0037] Connecting portion 128 Upper groove 183 Outer insulation layer 218

[0038] Upper grounding plate 130 Lower channel 184 Shell 300

[0039] Upper insulator 140 Upper protrusion 185 Upper housing 302

[0040] Raised portion 142 First lower protrusion 186 Lower housing 304

[0041] Second groove 144 Second lower protrusion 187 First groove 301

[0042] Protrusion 146 Notch 188 Elastic locking member 310

[0043] Upper metal shell 150 Lower metal shell 190

[0044] Front opening 151 Elastic finger 192

[0045] Front elastic finger 152 Front opening 193

[0046] Rear opening 153 Rear opening 195

[0047] Rear elastic finger 154 Fixed ear 197

[0048] Fixed ear 155

[0049] Partition 156

[0050] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0051] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0052] Ginseng Figure 1-18As shown, the cable connector 10 is used to connect with a socket connector (not shown), and includes a terminal module 100 and a housing 300 enclosing the terminal module 100. The terminal module 100 includes an upper module 110 and a lower module 160, and the upper and lower modules are stacked on each other. The upper module 110 includes a plurality of upper terminals 120 and an upper insulator 140 integrally injection-molded on the upper terminal and an upper metal shell 150 made of metal, the upper metal shell 150 is fixed to the upper insulator 140, and the upper terminal 120 is fixed to the upper insulator 140. The upper terminal 120 includes a plurality of differential terminal pairs 122 and a plurality of grounding terminals 124, two adjacent differential signal terminals constitute a differential terminal pair 122, and the differential terminal pairs 122 and the grounding terminals 124 are alternately arranged with each other in the lateral direction. Each upper terminal 120 includes a resilient contact portion 126 at the front end, a connecting portion 128 at the rear end, and an intermediate fixing portion 127 between the two. The connecting portion 128 is connected to the corresponding upper cable 200. The socket connector is mounted on a circuit board, which is provided with a conductive sheet. After the contact portion 126 is inserted into the socket connector, it abuts against the conductive sheet of the circuit board, thereby forming a conductive path. The ends of the connecting portion 128 are connected together by an upper grounding sheet 130 extending in the direction. Correspondingly, each upper cable 200 includes a pair of inner conductors 202, an inner insulating layer 204 wrapped outside the inner conductors 202, a shielding layer 206 outside the inner insulating layer, and an outer insulating layer 206 wrapped outside the shielding layer, that is, the upper cable is sequentially wrapped with a pair of inner conductors 202, an inner insulating layer 204, a shielding layer 206, and an outer insulating layer 206 from the inside to the outside; the pair of inner conductors 202 are electrically and mechanically connected to the connection portion 128 of the corresponding differential terminal pair, and the shielding layer 206 is electrically and mechanically connected to the upper grounding plate 130. It should be noted that the connection portion 128 and the fixing portion 127 are coplanar with each other, and the upper grounding member 130 is offset from the connection portion 128, so as to match the inner conductor 202 and the shielding layer 206.

[0053] The upper insulator 140 is formed with a plurality of hollow raised portions 142, which are aligned with the fixing portions 127 of the differential terminal pair 122 in the vertical direction to support the upper metal shell 150. At the same time, the hollow structure makes the fixing portions 127 face the upper metal shell 150 to improve the electrical performance. A plurality of second grooves 144 are formed on the lower surface of the upper insulator 140 to accommodate or allow the upper terminals 120 to pass through, which will be described in detail below. A pair of protrusions 146 are formed at both ends of the upper insulator 140 to fix the upper metal shell 150.

[0054] 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 partitions 156 in the middle. The front elastic fingers 150 are bent downward from the front edge of the upper metal shell and abut against the fixing portion 127 of the grounding terminal 126 in the upper terminal. The rear elastic fingers 154 are bent downward and abut against the shielding layer 206 of the upper cable 200. In this way, the rear elastic fingers 154 and the grounding member 130 together clamp the shielding layer 206 in the vertical direction. The partitions 156 separate the connecting portions 128 of the adjacent differential terminal pairs 122 from each other. The front elastic fingers 152 and the partitions 156 are aligned in the front-to-back direction, and the front elastic fingers 152 and the rear elastic fingers 154 are offset from each other by a certain distance in the lateral direction. The upper metal shell 150 further includes a pair of front openings 151 for accommodating the protrusions 146, so as to fix the upper metal shell 150 on the upper insulator 140. The upper metal shell 150 further includes a pair of rear openings 153 and fixing ears 155 .

[0055] Correspondingly, the lower module 160 includes a row of lower terminals 170, a lower insulator 182 integrally injection-molded on the lower terminals, and a lower metal shell 190 made of metal. The lower metal shell 190 is fixed to the lower insulator 182, and the lower terminals are fixed to the lower insulator 182. The lower terminals 170 include a plurality of differential terminal pairs 172 and a plurality of grounding terminals 174. In the lateral direction, the differential terminal pairs 172 and the grounding terminals 174 are alternately arranged with each other. Each lower terminal 170 includes a resilient contact portion 176 at the front end, a connecting portion 178 at the rear end, and an intermediate fixing portion 177 between the two. The contact portion 176 is partially accommodated in the second groove 144 of the upper insulator 140. Similar to the upper terminal, the connecting portion 178 of the grounding terminal is connected together by a lower grounding plate 180 extending laterally. Similar to 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 are electrically and mechanically connected to the connecting portions 128 of the corresponding differential terminal pairs 172, and the shielding layer 216 is electrically and mechanically connected to the lower grounding plate 180.

[0056] The lower insulator 180 is formed with a row of upper grooves 183 for receiving the corresponding upper cables 200, and a row of lower grooves 184 for receiving the lower cables 210. The lower insulator 180 further includes a pair of upper protrusions 185, 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.

[0057] The lower housing 190 includes a row of elastic fingers 192, a pair of front openings 193, a pair of rear openings 195 and a pair of fixing ears 197. The elastic fingers 192 are respectively in contact with the shielding layer 216 of the lower cable 210, so that the elastic fingers and the grounding member 180 together clamp the shielding layer 216 of the lower cable 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 ears 197 are fixed to the corresponding notches 188.

[0058] The housing 300 includes an upper housing 302 and a lower housing 304, which together clamp the terminal module 100 therein. The upper housing 302 is provided with first grooves 301 to accommodate the contact portions 126 of the upper terminals 120 one by one, and the lower housing 304 is provided with elastic locking members 310 for fixing with the seat body of the socket connector.

[0059] The improvement of the present invention is that the multiple elastic fingers of the metal shell contact the ground terminal and the shielding layer of the cable, and the partition of the metal shell separates the differential terminal pairs from each other, so that the metal shell establishes an isolation member that shields signal interference, namely, an acrosstalk resonance mitigator. The upper metal shell of the present invention contacts the ground terminal and the shielding layer of the cable at the same time, achieving multiple grounding points, which can effectively improve the high-frequency performance of the cable connector. Another feature of the present invention is that the cable connector 10 is inserted into the socket connector at an angle, and the elastic locking member 310 is hidden under the inclined insertion virtual line. The front end face 101 of the cable connector 10 extends in an inclined direction to allow the cable connector 10 to be inserted in an inclined direction. The upper module is located above the lower module, and the upper module protrudes forward than the lower module, and the elastic locking member 310 is located at the lower side of the housing 300 adjacent to the lower insulator. The elastic locking member of the present invention is located on the lower side of the housing, which can reduce the height of the cable connector on the circuit board as a whole.

[0060] The above embodiments are preferred embodiments of the present invention, but not all embodiments. Any equivalent changes made to the technical solutions of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the claims of the present invention.

Claims

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

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

3. The plug connector according to claim 1, wherein: Each of the upper and lower terminals includes a contact portion at the front end, a connecting portion at the rear end, and a fixing portion connecting the two. The connecting portion of the grounding terminal in the upper terminal is integrally connected by a laterally extending upper grounding plate, and the shielding layer of the upper cable is welded to the upper grounding plate; the connecting portion of the grounding terminal in the lower terminal is integrally connected by a laterally extending lower grounding plate, and the shielding layer of the lower cable is welded to the lower grounding plate.

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

5. The plug connector according to claim 1, wherein: Each upper terminal includes a contact portion at the front end, a connecting portion at the rear end and a fixing portion connecting the two. The upper insulator is provided with a hollow raised portion, which is aligned with the fixing portion so that the fixing portion of the signal terminal is exposed upward and faces the upper metal shell.

6. The plug connector according to claim 1, wherein: The upper metal shell is provided with a plurality of partitions located between the front and rear elastic fingers, and the partitions separate adjacent differential terminal pairs from each other.

7. A plug connector, comprising a terminal module and a housing enclosing the terminal module, the terminal module being provided with an inclined front end surface and comprising an upper module and a lower module stacked on each other, the upper module comprising an upper insulator, an upper terminal fixed to the upper insulator, and an upper cable connected to the upper terminal, the lower module comprising a lower insulator, a lower terminal fixed to the lower insulator, and a lower cable connected to the lower terminal; characterized in that: The shell is fixed with an elastic locking piece, and the elastic locking piece is located at the lower side surface of the shell adjacent to the lower insulator.

8. The plug connector according to claim 7, wherein: The upper insulator is provided with a plurality of first slots, and the contact portions of the lower terminal pass through the first slots.

9. The plug connector according to claim 7, wherein: A second groove is provided on the inner side surface of the shell, and a contact portion of the upper terminal passes through the second groove.

10. The plug connector according to claim 9, wherein: The elastic locking member and the second groove are respectively located on the opposite inner and outer sides of the shell.

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