CN206878212U - plug connector - Google Patents

Abstract

The utility model relates to a plug connector, which comprises an insulating body, a conductive terminal, a circuit board, a metal inner shell, an insulating inner mold, an insulating outer mold, a metal outer shell and a cable. The circuit board has a front plate portion and a rear plate portion connected front and back. The metal inner shell is sleeved on the insulating body. The insulating inner mold is injection-molded on the circuit board. The metal outer shell comprises a main body portion sleeved on the insulating body and the outer side of the metal inner shell and a reinforcement portion extending backward from the main body portion to the metal inner shell. The front plate portion is located in the reinforcement portion. The insulating outer mold is injection-molded on the metal outer shell. The main body portion partially protrudes forward from the insulating outer mold, thereby reducing the outer size of the plug connector and improving the shear strength.

Description

plug connector

technical field

The utility model relates to a plug connector, in particular to a plug connector with a metal shell.

Background technique

Since the USB Type-C connector can provide high-frequency transmission, it puts forward higher requirements on the shielding ability of the signal. The prior art related to this case can refer to a plug connector disclosed by CN204304086U, which includes an insulating body and conductive terminals. , a metal inner shell and a metal outer shell, the insulating body is provided with a pair of joint holes for the tongue plate of the socket connector to be inserted, the conductive terminal is accommodated in the insulating body, the metal inner shell is set on the outside of the insulating body, and the metal shell is set on the metal inner shell On the outside, the metal shell includes a separate front metal shell and a rear metal shell. The front metal shell includes a main shell and a docking shell protruding forward from the main shell. The docking shell is used for plugging into the socket connector, and the rear metal shell is sleeved On the outside of the main shell, the thickness and width of the plug connector are increased, which is not conducive to the trend of thinning, and the shear strength of the plug connector is low.

Utility model content

The purpose of the utility model is to provide a plug connector with reduced peripheral size and improved shear strength.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plug connector, which includes an insulating body, a conductive terminal, a circuit board, a metal inner shell, an insulating inner mold, an insulating outer mold, a metal shell and a cable. The insulating body is provided with a socket hole, the conductive terminal has a contact portion located in the socket hole and a welding foot extending out of the insulating body, the circuit board is placed horizontally, and has a front plate and a rear plate connected front and back The welding foot is welded on the front plate, the cable is welded on the rear plate and extends backward to form an insulating inner mold and an insulating outer mold, the metal inner shell is sleeved on the insulating body, and the insulating inner mold Injection molded on the circuit board, the metal shell is a one-piece tubular structure, including a main body sleeved on the outside of the insulating body and the metal inner shell, and a reinforcement portion extending backward from the main body to the metal inner shell. The front plate part is located in the reinforcement part, the insulating outer mold is injection-molded on the metal shell, and the main body protrudes forward from the insulating outer mold.

As a further improvement of the present invention, the peripheral dimensions of the main body part and the reinforcing part tend to be the same.

As a further improvement of the utility model, the reinforcing part is completely embedded in the insulating outer mold.

As a further improvement of the utility model, the metal shell includes a top wall, a bottom wall and two side walls connecting the top wall and the bottom wall, the top wall and the bottom wall of the reinforcement part are respectively provided with through openings, and the openings Insulated outside padded.

As a further improvement of the utility model, the metal casing includes a top wall, a bottom wall and two side walls connecting the top wall and the bottom wall, the two side walls of the reinforcement part are provided with gaps, and the left and right edges of the front plate part snap forward into the notch.

As a further improvement of the present invention, a row of welding pads are respectively provided on the upper surface of the front plate portion, the welding feet are welded to the welding pads, and the inner side wall of the notch is also welded to the welding pads.

As a further improvement of the present utility model, the length of the rear board part extending backward beyond the reinforcing part is not less than half of the length of the circuit board.

As a further improvement of the utility model, the plug connector is a USB Type-C interface connector.

As a further improvement of the utility model, the plug connector further includes two insulating blocks, the conductive terminals are insert-molded on the insulating blocks to form a terminal module, and the insulating blocks are also accommodated in the metal inner shell.

The metal shell of the utility model plug connector is a one-piece tubular structure, including a main body sleeved on the outside of the insulating body and the metal inner shell, and a reinforcement portion extending backward from the main body to the metal inner shell. The front plate The part is located in the reinforcement part, the insulating outer mold is injection-molded on the metal shell, and the main part protrudes forward from the insulating outer mold, which facilitates the peripheral dimension of the plug connector to achieve an ultra-thin level, and the metal shell passes through the reinforcing part To lengthen, increase the welding area with the circuit board, and increase the shear resistance of the plug connector.

Description of drawings

FIG. 1 is a three-dimensional schematic diagram of a plug connector of the present invention.

Fig. 2 is a three-dimensional exploded view of the plug connector of the present invention.

FIG. 3 is an exploded perspective view of the plug connector of the present invention, showing that the metal shell is separated from other components.

Fig. 4 is a three-dimensional schematic diagram of the electrical connector of the present invention, without showing the insulating inner mold, insulating outer mold and cables.

FIG. 5 is an exploded perspective view of FIG. 4 .

detailed description

Please refer to Fig. 1 to Fig. 5, the plug connector 100 of the present invention is a USB Type-C interface connector, which supports front and back insertion, and includes an insulating body 10, a terminal module 20, a metal locking piece 30, an insulating piece 40. Circuit board 50, metal inner shell 60, insulating inner mold 71, insulating outer mold 72, metal outer shell 80 and cable 90.

The insulating body 10 includes a top 11, a bottom 12, two side parts 13 and a docking hole 15 between the top 11, the bottom 12 and the two side parts 13, and the docking hole 15 is used for a tongue plate of a socket connector (not shown). Inserting, the top 11 and the bottom 12 are respectively provided with a through terminal slot 111 and a hollow slot 112 located in front of the terminal slot 111 . The two side parts 13 are provided with receiving grooves 131 , and the front ends of the receiving grooves 131 pass through the docking holes 15 .

The terminal module 20 is assembled forwardly on the insulating body 10, which includes two insulating blocks 21 and two rows of conductive terminals 22 insert-molded on the two insulating blocks 21, and the locking piece 30 is clamped and fixed between the two insulating blocks 21 . The conductive terminal 22 has a contact portion 25 protruding forward from the insulating block 21 and a welding foot 26 extending backward from the insulating block 22 . The contact parts 25 extend forward into the docking hole 15 of the insulating body 10 and are arranged in two rows up and down. Each contact part 25 is also accommodated in the corresponding terminal groove 111 one by one. The insulating sheet 40 is fixed on the outer surface of the top 11 and the bottom 12. And cover the outside of the terminal groove 111 to avoid the risk of short circuit between the contact portion 25 and the metal inner shell 60 . The welding pins 26 are also arranged in two rows up and down, and are welded on the upper and lower surfaces of the circuit board 50 .

The locking piece 30 has a U-shaped structure, including a main piece 31 , locking arms 32 extending from the left and right ends of the main piece 31 , and welding pieces 33 extending backward from the left and right ends of the main piece 31 . The main piece 31 is clamped and fixed between the insulating blocks 21. The locking arm 32 is accommodated in the receiving groove 131 of the insulating body 10 and can swing left and right. The front end of the locking arm 32 has a locking protrusion 325 protruding into the docking hole 15. , to lock the receptacle connector.

The circuit board 50 is placed horizontally, and has a front plate portion 51 and a rear plate portion 52 connected front and rear. A row of solder pads 511 are respectively arranged on the upper and lower surfaces of the front end of the front plate portion 51, which are welded with the soldering feet 26 of the conductive terminals 22. The rear plate portion 52 A row of welding pads 521 are also arranged on the upper surface of the rear end of the cable 90 for welding.

The metal inner shell 60 is a one-piece shell structure with front and rear hollows. It is sleeved on the insulating body 10 and the terminal module 20 forward, and is located outside the insulating sheet 40. The front end of the metal inner shell 60 has a number of contact arms 61. The contact arms 61 passes through the hollow groove 112 and enters into the docking hole 15 for abutting against the receptacle connector 10 to form a grounding loop.

The insulating inner mold 71 is injection-molded on the circuit board 50 to strengthen the connection strength between the circuit board 50 and the conductive terminals 22 and the cables 90 .

The metal shell 80 is set as a one-piece tubular structure, including a top wall 81, a bottom wall 82, and two side walls 83 connecting the top wall 81 and the bottom wall 82. The metal shell 80 also includes a main body 84 connected front and rear, and a reinforcement portion 85 , the peripheral dimensions of the main body 84 and the reinforcing part 85 tend to be the same, the main body 84 is sleeved on the metal inner shell 60, the reinforcing part 85 protrudes backward beyond the metal inner shell 60, the top wall 81 and the bottom wall 82 of the reinforcing part 85 There is a through opening 851, the two side walls 83 are provided with notches 852, the front plate part 51 of the circuit board 50 is located in the reinforcement part 85, the left and right edges of the front plate part 51 are engaged in the notch 852 forward, the inner side wall of the notch 852 Weld with pad 511 to form a ground loop between metal shell 80 and circuit board 50, and at the same time strengthen the fixing strength of metal shell 80 to circuit board 50. Half the length of the plate 50.

The insulating outer mold 72 is injection molded on the metal shell 80 and the insulating inner mold 71. As an insulating shell, the opening 851 of the metal shell 80 is filled by the insulating outer mold 72, and the main body 84 protrudes forward from the insulating outer mold 72 for Inserted into the receptacle connector, the cable 90 extends rearwardly out of the insulating outer mold 70 .

The metal shell 80 of the plug connector 100 of the utility model is a one-piece structure, and the insulating outer mold 72 is formed directly on the metal shell 80, so that the peripheral size of the plug connector 100 can be realized to be ultra-thin. The metal shell 80 passes through the reinforcing part 85 The lengthening is performed to increase the welding area with the circuit board 60 and increase the shear resistance of the plug connector 100 .

Although preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that, without departing from the scope and spirit of the present invention as disclosed by the appended claims, Various improvements, additions, and substitutions are possible.

Claims (9)

1. A plug connector, which includes an insulating body, a conductive terminal, a circuit board, a metal inner shell, an insulating inner mold, an insulating outer mold, a metal shell and cables, the insulating body is provided with a socket hole, and the conductive The terminal has a contact portion located in the insertion hole and a welding leg extending out of the insulating body. The circuit board is placed horizontally and has a front plate portion and a rear plate portion connected back and forth. The welding leg is welded on the front plate portion. The cable is welded on the rear plate and extends backward to form an insulating inner mold and an insulating outer mold. The metal inner shell is sleeved on the insulating body, and the insulating inner mold is injection-molded on the circuit board. It is characterized in that: The metal shell is a one-piece tubular structure, including a main body sleeved on the outside of the insulating body and the metal inner shell, and a reinforcement part extending backward from the main body to the metal inner shell. The front plate is located in the reinforcement part, The insulating outer mold is injection molded on the metal shell, and the main body protrudes forward from the insulating outer mold. 2 . The plug connector according to claim 1 , wherein the peripheral dimensions of the main body portion and the reinforcing portion tend to be the same. 3. The plug connector according to claim 1, wherein the reinforcing part is completely embedded in the insulating outer mold. 4. The plug connector according to claim 1, wherein the metal housing includes a top wall, a bottom wall and two side walls connecting the top wall and the bottom wall, and the top wall and the bottom wall of the reinforcement part are respectively A through opening is provided which is filled with an insulating outer surface. 5. The plug connector according to claim 1, wherein the metal housing includes a top wall, a bottom wall, and two side walls connecting the top wall and the bottom wall, and the two side walls of the reinforcement part are provided with notches , the left and right edges of the front plate are snapped forward into the notch. 6. The plug connector according to claim 5, characterized in that: the upper surface of the front plate part is respectively provided with a row of pads, the welding feet are welded to the pads, and the inner wall of the notch is also connected to the solder pads. Disc welding. 7 . The plug connector according to claim 1 , wherein the length of the rear board extending beyond the reinforcing portion is no less than half of the length of the circuit board. 8 . 8. The plug connector according to claim 1, wherein the plug connector is a USB Type-C interface connector. 9. The plug connector according to claim 1, characterized in that: the plug connector further comprises two insulating blocks, the conductive terminals are insert-molded on the insulating blocks to form a terminal module, and the insulating blocks are also accommodated in Metal inner shell.