CN114597688A

CN114597688A - Plug connector

Info

Publication number: CN114597688A
Application number: CN202111339644.XA
Authority: CN
Inventors: 易颖芬; 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: 2020-12-03
Filing date: 2021-11-12
Publication date: 2022-06-07

Abstract

A plug connector comprises a body and a plurality of terminal assemblies. The body is provided with a plurality of accommodating holes which penetrate through the body front and back, and the terminal assemblies are accommodated in the accommodating holes one by one; each terminal assembly comprises a terminal, a cable, a plastic plug-in and a metal rear shell. The terminal comprises a contact part and a connecting part, the cable comprises a guide core, an insulating inner layer and an insulating outer layer which are sequentially sleeved, the guide core is connected with the connecting part of the terminal, and the guide cores of the terminal and the cable are contained in the plastic plug-in component. The metal backshell includes anterior segment, back end and connects the neck of preceding, back end, and the anterior segment cover of metal backshell is established at the back end of plastic plug-in components, and the neck cover of metal backshell is established the insulating inlayer of cable, the back end cover of metal backshell is established the insulating skin of cable. Compared with the prior art, the metal rear shell is provided with the neck, so that the relative displacement of each part in the terminal component can be limited, and good precision is achieved.

Description

Plug connector

[ technical field ] A method for producing a semiconductor device

The invention relates to a plug connector.

[ background of the invention ]

The conventional plug connector and the socket connector are usually interlocked by respective elastic structures, such as elastic latch arms, however, the latching manner is still insufficient for the application field of the vehicular connector, and the original interlocked plug connector and the socket connector are still easy to be released under the vibration environment. When the pulling force is too large, the terminal assembly is also subjected to displacement damage.

Accordingly, there is a need for an improved plug connector that overcomes this drawback.

[ summary of the invention ]

The invention aims to provide a plug connector, wherein a terminal assembly of the plug connector has good precision.

The purpose of the invention is realized by the following technical scheme: a plug connector comprises a body and a plurality of terminal assemblies, wherein the body is provided with a plurality of accommodating holes which penetrate through the body from front to back, and the terminal assemblies are accommodated in the accommodating holes one by one; each terminal component comprises a terminal, a cable, a plastic plug-in and a metal rear shell; the terminal comprises a contact part and a connecting part, the cable comprises a guide core, an insulating inner layer and an insulating outer layer which are sequentially sleeved, the guide core is connected with the connecting part of the terminal, and the guide core of the terminal and the guide core of the cable are contained in the plastic plug-in unit; the metal backshell includes anterior segment, back end and connects the neck of preceding, back end, the anterior segment cover of metal backshell is established the back end of plastic plug-in components, the neck cover of metal backshell is established the insulating inlayer of cable, the back end of metal backshell is then established the insulating skin of cable.

Compared with the prior art, the metal rear shell is provided with the neck, so that the relative displacement of each part in the terminal component can be limited, and good precision is achieved.

[ description of the drawings ]

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

Fig. 2 is a perspective view of fig. 1 with the plug connector and the receptacle connector separated from each other.

Fig. 3 is a perspective view of fig. 2 from another angle.

Fig. 4 is a cross-sectional view of fig. 1 along the dashed line a-a.

Fig. 5 is a cross-sectional view of fig. 2 taken along the dashed line B-B.

Fig. 6 is a cross-sectional view of fig. 2 along the dashed line C-C.

Fig. 7 is a cross-sectional view of fig. 2 along the dashed line D-D.

Figure 8 is a cross-sectional view of the CPA and the body in an unlatched condition.

Figure 9 is a cross-sectional view of the CPA of figure 8 with the body in a latched position.

Fig. 10 is an exploded perspective view of the plug connector of fig. 2.

Fig. 11 is an exploded perspective view of fig. 10 from another angle.

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

Fig. 13 is an exploded perspective view of the terminal assembly of fig. 10.

Fig. 14 is an exploded perspective view of the terminal assembly of fig. 13 further assembled.

Fig. 15 is an exploded perspective view of the terminal assembly of fig. 14 further assembled.

Fig. 16 is a perspective view of the terminal assembly of fig. 15 fully assembled.

Fig. 17 is a perspective view of the terminal assembly of fig. 16, cut in half.

Fig. 18 is an exploded perspective view of the receptacle connector of fig. 3.

Fig. 19 is an exploded perspective view of fig. 18 from another angle.

[ description of main element symbols ]

Electrical connector assembly 10 plug connector 100 and socket connector 200

Terminal assembly 110 outer shell 134 terminal positioning device 180

First half assembly 110a collar 135 retention feature 182

Positioning block 184 for the shielding layer 130b of the second half device 110b

Vertical body 186 of metal back housing 140 of terminal 120

Connector positioning device 190 of front section 141 of connecting part 121

Rear section 412 of contact 122 abuts against block 192

Middle portion 123 neck 143 guide arm 194

Tabs 1231 Tabs 144 engage block 196

Middle cross-piece 197 of body 160 of channel 124

Metal front shell 125 recess 161 vertical body 198

Spring plate 126 accommodating hole 162 matching block 199

Front section 127 latch arm 164 body 210

Rear section 128 space 166 tubular portion 212

Shoulder 129 engages body portion 214 of

apertures

167, 168, 169

Plastic insert 145 mating hole 170 insulating housing 220

Front section 146 pocket 171 receiving space 222

Rear 147 resilient arm 172 latch shoulder 224

Channel 149 latch 174 terminal assembly 230

The

mating holes

150, 151, 152 block the step 175 terminal 232

Cable 130 operating end 176 insulator 234

Guide core 131 protects bridge 178 shield assembly 240

Insulating inner layer 132

metal plates

242, 244

Insulating outer layer 133

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

[ detailed description ] embodiments

The present invention is an electrical connector assembly 10 for use in an ethernet vehicle, and referring to fig. 1-4, the electrical connector assembly includes a plug connector 100 and a receptacle connector 200 that mate with each other. Referring to fig. 5-7, the plug connector 100 includes a body 160 made of an insulating material and a plurality of terminal assemblies 110, wherein the body 160 has a plurality of receiving holes 162 extending in a front-back direction, each receiving hole 162 penetrates in the front-back direction, and in this embodiment, four receiving holes 162 are arranged in a matrix. The four terminal assemblies 110 are inserted into the receiving holes 162 one by one from the rear to the front.

Referring to fig. 13-17, each terminal assembly 110 includes a terminal 120, a plastic insert 145 for receiving the terminal 120 therein, a metal front shell 125 surrounding the plastic insert 145, a metal rear shell 140, and a cable 130. The terminal 120 includes a contact portion 122 located at the front end, a connection portion 121 located at the rear end, and an intermediate portion 123 connecting the two, the contact portion 122 has a two-piece elastic sheet structure, and the intermediate portion 123 has an annular structure and is provided with a projecting piece 1231. The cable 130 includes a core 131, an inner insulating layer 132, a shielding layer 130b, an outer insulating layer 133 and an outer jacket 134, which are sequentially stacked from inside to outside. The core 131 is connected to the connecting portion 121 of the terminal 120 by fixing, clamping, or welding, as shown in fig. 13 and 17. The collar 135 is mounted on the insulating outer layer 133 and the shield 130b is folded back over the insulating outer layer 133.

The plastic insert 145 is tubular with a front-to-back extending through passage 149 that includes a smaller sized front section 146 and a larger sized rear section 147. The front end 146 is formed with

fitting holes

150, 151, and the rear end is formed with a fitting hole 152.

After being connected to cable 130, terminal 120 forms a half unit, hereinafter referred to as first half unit 110a, and then is assembled together from the back to the front into channel 149 of the plastic insert until tabs 1231 are retained in mating holes 151, as shown in fig. 14 and 17.

The metal rear shell 140 includes a front section 141, a rear section 142, and a neck 143 of smaller size in both, the front section 141 having a tab 144. The metal back shell 140 is assembled to the plastic insert 145 and the outer side of the cable 130 to form a second half component 110b, wherein the front section 141 is tightly wrapped around the back section 147 of the plastic insert 145, the protruding pieces 144 of the front section 141 are fastened in the matching holes 152, the neck 143 is tightly wrapped around the insulating inner layer 132 of the cable 130, and the back section 143 is tightly wrapped around the collar 135, as shown in fig. 15 and 17. It should be noted that the plastic insert 145 cannot extend rearward to the metal rear shell 140 due to the restriction of the neck 143, and thus the plastic insert 145 and the second half 110b cannot move in the forward and backward directions. Therefore, the risk of relative displacement among all parts of the terminal assembly can be reduced, and the accuracy of the terminal assembly is improved.

It will be appreciated that the installation process may also be: the metal back shell 140 is first mounted on the plastic insert 145, and then the first half 100a is inserted forward, through the metal back shell 140, into the channel 149, and finally held against the metal back shell 140, with the neck 143 fitting over the insulating inner layer 132 of the cable 130, thereby forming the second half 110 b.

The metal front shell 125 is tubular with a front-to-rear through passage 124, and the metal front shell 124 includes a front section 127 of smaller dimension and a rear section 128 of larger dimension forming a shoulder 129 therebetween. The front section 127 has spring tabs 126 on both sides thereof, and the spring tabs 126 move within the mating holes 150 when the two connectors are mated with each other. The second half assembly 110b is assembled into the metal front shell 125 to form the complete terminal assembly 110, wherein the front section 141 of the metal rear shell 140 is welded to the rear section 128 of the metal front shell 125. Note that the shoulder 129 inhibits forward movement of the second half 100b, whether or not the metal front and back shells are welded together.

Referring to fig. 4-12, the body 160 is further provided with a plurality of resilient latch arms 164 extending into the receiving cavity 162, with spaces 166 between adjacent latch arms 164. The body 160 is provided at both lateral sides thereof with recesses 161, and the recesses 161 communicate with the latch arms 164 and the spaces 166. The body 160 includes a pair of stopping steps 175, and the stopping steps 175 extend into the receiving hole 162 one by one. In this embodiment, the blocking step 175 is located at 90 degrees or 270 degrees, and the latch arm 164 is located at zero angle, so that the two are offset from each other, thereby facilitating injection molding. It will be appreciated that the blocking step 175, as shown in fig. 4, may block the terminal assembly 110 from moving forward from the body 160, and the latch arm 164 may block the terminal assembly 110 from moving backward, thus ensuring the correct position of the terminal assembly 110 within the body.

To ensure the proper function of latch arm 164, a pair of Terminal Position fixtures (TPA) 180 are assembled to recess 161. Each terminal positioning device 180 includes a vertical body 186, a pair of holding portions 182 located at the upper and lower sides of the vertical body, a positioning block 184 received in the space 166, and a pair of pressing blocks 188, wherein the pressing blocks 184 press the latch arms 164 to urge the latch arms 164 to move inward of the receiving holes 162. Correspondingly, the body 160 defines mating holes 167, 168 for receiving the two enlarged ends of the retention portion 182, thus securing the terminal alignment device 180 within the body 160, as shown in fig. 10-12. Note that the neck 143 is relatively small in size, and the outer circumference of the neck 143 is recessed relative to the front and rear sections to accommodate the corresponding latch arms 164, and the latch arms 164 are urged forward, as shown in fig. 6. It is clear that the latch arm 164 and the terminal positioning device 180 can block the terminal assembly 100 from moving backward relative to the body 160, so as to reduce the risk of relative displacement between the terminal assembly and the body and improve the accuracy of the plug connector.

The body 160 includes a pair of resilient arms 172, the resilient arms 172 having a latch head 174 for latching with the receptacle connector 200, a pair of protective bridges 178 at a rear end of the latch head 174, and a pair of protective bridges 178 having an operative end therebetween, the operative end being located behind the latch head 174. To ensure proper latching of the spring arms 172, a Connector Position assignment device 190 (CPA) is assembled to the body 160, which can move back and forth relative to the body between a latched state at the front and an unlatched state at the rear. The body 160 is provided with a cavity 171 on the top side thereof for receiving the connector positioning device 190, a plurality of engagement holes 170 are provided on both lateral sides of the body, and

engagement grooves

168, 169 are provided on the bottom side of the cavity. The connector positioning device 190 comprises a vertical body 198, a middle cross bar 197 provided with a fitting block 199 at its bottom surface, the fitting block 199 being received in the

fitting holes

168, 169, the pressing block 192 fitting the operating end 176 of the resilient arm 172. A pair of L-shaped resilient guide arms 194 are located on either side of the middle cross bar 197 and have mating blocks 196 that snap into the mating holes 170 to locate the connector alignment device 190 on the body, as shown in fig. 8-9. Terminal alignment structures 180 are mounted on opposite sides of the body and connector alignment devices 190 are mounted on the top surface of the body.

The receptacle connector 200 includes a metal injection molded body 210 having a tubular portion 212 at a front end and a body portion 214 at a rear end, and a plurality of terminal assemblies 230 mounted in the tubular portion 212. Each terminal assembly 230 includes a terminal 232 and an insulator 234 integrally formed on the terminal, and the shield assembly 240 includes a pair of

metal plates

242, 244 assembled into the body 210 for spacing adjacent terminal assemblies 230 from one another. The insulating housing 220 is fixed to the body 210, the insulating housing 220 forms a receiving space 222, and the tubular portion 212 is received in the receiving space 222 to form a locking shoulder 224.

During mating, as shown in fig. 1-4, the spring arms 172 of the plug connector 100 are retained by the latching shoulders 224 of the receptacle connector, the front portion of the body 160 is received in the receiving space 222, and each of the tubular portions 212 is received in the receiving cavity 162, such that the spring tabs 126 are deflected inward into the mating holes 150 of the plastic inserts 145, such that the terminals 232 of the receptacle connector are received in the contact portions 122 of the terminals 120 of the plug connector.

The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.

Claims

1. A plug connector comprises a body and a plurality of terminal assemblies, wherein the body is provided with a plurality of accommodating holes which penetrate through the body from front to back, and the terminal assemblies are accommodated in the accommodating holes one by one; each terminal component comprises a terminal, a cable, a plastic plug-in and a metal rear shell; the terminal comprises a contact part and a connecting part, the cable comprises a guide core, an insulating inner layer and an insulating outer layer which are sequentially sleeved, the guide core is connected with the connecting part of the terminal, and the guide core of the terminal and the guide core of the cable are contained in the plastic plug-in unit; is characterized in that: the metal backshell includes anterior segment, back end and connects the neck of preceding, back end, the anterior segment cover of metal backshell is established the back end of plastic plug-in components, the neck cover of metal backshell is established the insulating inlayer of cable, the back end of metal backshell is then established the insulating skin of cable.

2. The plug connector of claim 1, wherein: the front sections of the terminal and the metal rear shell are respectively provided with a lug which is connected with a matching hole arranged on the plastic plug-in unit in a backward abutting mode, and the lug of the terminal is located in front of the lug of the metal rear shell.

3. The plug connector of claim 1, wherein: the terminal component comprises a metal front shell, and the metal front shell is sleeved on the plastic plug-in and the front section of the metal rear shell.

4. The plug connector of claim 3, wherein: the metal front shell is provided with an elastic sheet, and the elastic sheet is accommodated in a matching hole formed in the plastic plug-in unit.

5. The plug connector of claim 1, wherein: the body is provided with a plurality of latch arms extending into the corresponding accommodating holes, and each latch arm extends to a recess formed on the outer peripheral surface of the neck part and is used for preventing the corresponding terminal component from moving backwards.

6. The plug connector of claim 5, wherein: the plug connector comprises a terminal positioning device arranged on the body, and the terminal positioning device is pressed against the corresponding latch arm.

7. The electrical connector of claim 6, wherein: the terminal positioning device comprises a vertical body, a pair of holding parts positioned on the upper side and the lower side of the vertical body, and a pressing block; the holding part is buckled in a matching hole arranged in the body, and the pressing block is pressed against the lock catch arm.

8. The plug connector of claim 7, wherein: the terminal positioning device is provided with a positioning block which is positioned between two adjacent latch arms.

9. The plug connector of claim 6, wherein: the body is provided with an elastic arm extending from front to back, and the elastic arm is provided with a locking head; the plug connector comprises a connector positioning device, the connector positioning device is arranged on the body and can move along the front-back direction, and the connector positioning device moves forwards to the position below the elastic arm and limits the downward elastic deformation of the elastic arm to achieve a locking state.

10. The plug connector of claim 9, wherein: the terminal positioning structures are arranged on two opposite side surfaces of the body, and the connector positioning device is arranged on the top surface of the body.