Patent Application
20160285206
1. Field of the Invention
The present invention relates to a plug connector assembly, and more particularly to a plug connector assembly equipped with a shielding shell to reduce EMI.
2. Description of Related Arts
U.S. Patent Application Publication No. 2014/0073193 discloses a plug connector that can be incorporated into electronic devices and docking stations.
U.S. Pat. No. 9,017,092 discloses a plug connector having a tapered extension that projects outward along a connection axis, and a corresponding receptacle connector having a receptacle that accommodates the tapered extension. The plug connector includes one or more electrically conductive wires for transmitting electrical power, electrical signals, and/or a ground reference.
U.S. Patent Application Publication No. 2015/0214677 discloses a plug connector assembly including a mating connector extending along a bottom-to-top direction, a printed circuit board connecting with a bottom side of the mating connector, and an insulative housing enclosing the printed circuit board and a part of the mating connector. The printed circuit board is provided with a number of electrical components which may cause electromagnetic interference (EMI) with exterior electrical devices.
Therefore, a plug connector assembly with shielding shell to reduce EMI is desired.
Accordingly, an object of the present invention is to provide a plug connector assembly including a bottom metallic shell having a lower wall, a front wall, a rear wall, a left wall, and a right wall, and defining a receiving slot. The front wall has a first inserting groove extending therethrough along a front-to-back direction and a first mounting slit extending downwardly from a top edge of the front wall and communicating to the first inserting groove. A top metallic shell assembled to the bottom metallic shell along a top-to-bottom direction has a plurality of side walls, an opening defined by the side walls, and a front wall extending downwardly from one of the side walls and abutting against the front wall of the bottom metallic shell to seal the first mounting slit. The front wall of the top metallic shell forms a third inserting groove recessed upwardly from a bottom edge thereof. The third inserting groove cooperates with the first inserting groove to define a first hole along the front-to-back direction. A printed circuit board (PCB) is located in the receiving slot and enclosed by the bottom and top metallic shells. A connector connecting with the PCB has a top end extending upwardly through the opening A first cable extends through the first hole along the front-to-back direction and connects with the PCB. The first cable is mounted, across the first mounting slit along the top-to-bottom direction before the top metallic shell is assembled to the bottom metallic shell, to the first inserting groove.
The PCB is received in the receiving chamber so that the metallic shells reduce EMI between the exterior device and the PCB. The top metallic shell and the bottom metallic shell form a closed hole for passing the first cable and seal the first mounting slit along the front-to-back direction to prevent leakage of electromagnetic noise therefrom.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
Reference will now be made in detail to some preferred embodiments of the present invention.
Referring to
The plug connector assembly 100 includes a metallic shell 101 having a bottom shell 110 and a top shell 130 assembled thereto.
The bottom shell 110 has a lower wall 111, a front wall 112, a rear wall 113, a left wall 114, a right wall 115, and a receiving slot 116 surrounded by these walls. The front wall 112 defines a plurality of inserting grooves extending therethrough along a front-to-back direction and a plurality of mounting slits extending downwardly from a top edge of the front wall 112 and communicating to the corresponding inserting grooves, respectively. The inserting grooves include a first inserting groove 121 located at a left region of the front wall 112, and a second inserting groove 122 located at a right region of the front wall 112. The mounting slits include a first mounting slit 123 and a second mounting slit corresponding to the first and second inserting grooves 121, 122. A top wall 125 bends from a right top edge of the rear wall 113 and extends forwardly to reach the front wall 112. The top wall 125 is parallel to the lower wall 111 and perpendicular to the front wall 112 and the rear wall 113. An enclosing wall 126 abutting against the front wall 112 bends and extends downwardly from the top wall 125. The enclosing wall 126 seals the second mounting slit along the front-to-back direction to prevent leakage of electromagnetic noise therefrom. The enclosing wall 126 forms a fourth inserting groove 127 recessed upwardly from a bottom edge thereof and cooperating with the second inserting groove 122 to define a second circular (insertion) hole 128 along the front-to-rear direction. Each of the second inserting groove 122 and the fourth inserting groove 127 is a half circular hole.
The top shell 130 cooperates with the front wall 112 of the bottom shell 110 to prevent electromagnetic noise leaking from the first mounting slit 123. The top shell 130 includes a front wall 131 abutting against the front wall 112 and sealing the first mounting slit 12 along the front-to-back direction, a rear wall 132 parallel to the front wall 131 and abutting against the rear wall 113, and two lateral walls 133 connecting between the front and rear walls 131, 132. One lateral wall 133 is disposed intimately to the left wall 114, and the other lateral wall 133 is disposed intimately to the top wall 125. Each of the lateral wall 133 forms a locking hole 134 extending therethrough along a transverse direction (left-to-right direction). Each of the front and rear walls 131, 132 includes a first plate 135, a second plate 136 below the first plate 135 and in front of the first plate 135, and an inclined rib 137 connecting between the first and second plates 134, 135. An opening 138 is surrounded by the first plates 135 and lateral walls 133. There is a receiving room 139 defined by the second plates 136. A block board 140 extends upwardly and inwardly from the top edge of the first plate 135 toward the opening 138. The second plate 136 of the front wall 131 forms a third inserting groove 141 recessed upwardly from a bottom edge thereof. The third inserting groove 141 cooperates with the first inserting groove 121 to define a first circular (insertion) hole 142 along the front-to-back direction. Each of the first and third inserting grooves 121, 141 is a half circular hole.
A connector 150 partly received within the shell 101 includes a base 151 located within the opening 138 and the receiving room 39. A tongue 152 protrudes upwardly from the base 151 and extends out of the top shell 130. A front connection face 153 and a rear connection face 154 taper toward each other from the base 151 to the tongue 152 symmetrically about a first symmetry plane. Two flank faces 155 are formed respective opposing sides of the tapered extension between the front and rear connection faces 153, 154, and tapers toward each other from the base 151 to the tongue 152 symmetrically about a second symmetry plane that is orthogonal to the first symmetry plane. A set of first contacts 156 and a set of second contacts 157 extending along the front connection face 153 and the rear connection face 154, respectively. Each of the first and second contacts 156, 157 has a contacting portion 158 exposed on one of the front and rear connection faces, a tail portion 159 extending downwardly and out of the base 151, and a middle portion buried in tongue 152. The base 151 includes a body 161 extending along the transverse direction and two wings 162 extending downwardly from two lateral sides of the body 161. The tails 159 of the contacts located between the two wings 162. Each wing 162 has a locking protrusion 163 extending far away the tails 159 and a holding slot 164 recessed upwardly from a bottom edge thereof.
A printed circuit board (PCB) 170 received in the receiving slot has a top edge mounted within holding slot 164 and a number of electrical components mounted thereon. The PCB and electrical components could bring electromagnetic noise and interference with exterior electrical components. The PCB 170 has a front surface 171 with conductive pads 173 connecting to the tails 159 of the first contacts 156, and a rear surface 172 with conductive pads connecting to the tails 159 of the second contacts 157. The PCB 170 is longer than the connector 150 along the transverse direction. The PCB 170 has a left part 174 connecting with the connector 150 and a right part 175.
A plurality of cables 180 extend perpendicular to the PCB 170 and connect to the front surface 171 of the PCB 170. The cables 180 include a first cable 181 going through the first circular hole 142 and connecting with the left part 174, and a second cable 182 going through the second circular hole 128 and connecting with the right part 175. Each of the cables 180 includes a cylindrical sleeve 183, a plurality of conductive wires 184 received within the cylindrical sleeve 183, and a weave layer 185 reversing backwardly from the front side thereof. The weave layers 185 are received in the first and second circular holes 142, 128, respectively. The weave layers 185 are mechanically and electrically connected with front wall 112 of the bottom shell 110 to electrically connect an exterior ground.
An insulative case 190 not only encloses the metallic shell 101 and a part of the connector 130 therein but also fills space between the PCB 170 and the shells 110 and 130 and the holes 1510 of the base 151.
The step of assembling the plug connector assembly 100 will be described as follow. Firstly, the PCB 170 is mounted to the connector 150 wherein the tails 159 are soldered to the front and rear surface 171, 172, respectively. Secondly, the front portion of cylindrical sleeve 183 is removed, the front portions of the conductive wires 184 are exposed forwardly, and the weave layers 185 are reversed backwardly. Thirdly, the cables 180 are soldered to the PCB 170 wherein the conductive wires 184 are soldered to the conductive pads 176 of PCB 170. Fourthly, the top shell 130 is assembled to the connector 150 as a hybrid assembly wherein the weave layers 185 of the first cable 181 received within the third inserting groove 141, and the locking protrusions 163 are mounted into the locking holes 133, respectively. Fifthly, the hybrid assembly is assembled to the bottom shell 110 wherein the PCB 170 is received in the receiving slot 116, the first cable 181 is mounted into the first inserting groove 121 across the first mounting slit 123, and the second cable 182 is mounted into the second inserting groove 122 across the second mounting slit. Sixthly, the top wall 125 is bended forwardly and downwardly to reach the front wall 112, after that the enclosing wall 126 is bended backwardly and downwardly from the top wall 125 to abut against the front wall 112. Finally, the insulative case 190 is over molded to the connector 150 and the metallic shell 101 to form the plug connector assembly 100.
Understandably, in this embodiment the so-called bottom shell and top shell are defined according to their current orientations. Anyhow, the connector 150 may be placed horizontally alternately. In brief, the detailed structures of the connector 150 may be similar to that disclosed in U.S. Pat. No. 9,257,801 while the spirit of the invention includes the connector is oriented in a first direction while the cable is orientated in a second direction perpendicular to the first direction and is connected to the connector via a printed circuit board wherein the printed circuit board is preferably positioned to extend in a plane perpendicular to the cable, the metallic shell essentially fully circumferentially encloses the printed circuit board and is composed of opposite first and second shell pieces (i.e., the top shell and the bottom shell), assembled to each other in the first direction, and the inserting groove of the cable is commonly formed by the first shell piece and the second shell piece to fully surround the weave layers of the cable.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201510131649.1 | Mar 2015 | CN | national |
