CN204858149U - plug electrical connector - Google Patents

Abstract

A plug electrical connector includes an insulating body, a terminal and a shielding shell. The insulating body includes a base, an upper plate, a lower plate and a slot, the upper plate and the lower plate extend to form one side of the base, and the slot is located between the upper plate and the lower plate. The terminal is located in the insulating body, and the terminal includes a spring-type contact end, which is located in the slot. The shielding shell covers the insulating body, and the shielding shell includes a front shell and a rear shell. The front shell includes a front cover and a rear cover, the interior of the front cover is arranged on the upper plate and the lower plate, the rear cover is located on the rear side of the front cover, and the interior of the rear cover is arranged on the base. The rear shell covers the rear side of the base, and the rear shell includes a front extension plate, which is overlapped with the rear cover and fixed to the front shell and the rear shell.

Description

plug electrical connector

technical field

The utility model relates to an electrical connector, in particular to a plug electrical connector.

Background technique

The general electrical connector interface is Universal Serial Bus (USB for short), its plug-and-play feature is widely used by ordinary consumers, and it has been developed from the USB2.0 transmission specification to the faster transmission speed USB3. 0 transmission specification.

The existing USB plug electrical connector includes an insulating body and a shielding shell, and the shielding shell covers the back of the insulating body to provide shielding when transmitting signals. Moreover, the existing shielding shell includes a front shell and a rear shell, and the insulating body is covered by the front shell and the rear shell.

However, there is no structure between the front shell and the rear shell of the general USB plug electrical connector to effectively position the two in a stable combination. In addition, a gap is generated between the front case and the rear case due to the unsteady combination and positioning, and the gap causes the insulating body and terminals inside the front case and the rear case to be exposed. Due to poor shielding and positioning, the stability of the front shell and the rear shell is insufficient, and problems of noise interference (EMI) and radio frequency interference (RFI) may occur at the same time. Therefore, how to solve the problems of the existing structure is the problem that the relevant industry must think about.

Utility model content

In view of the above problems, the utility model provides a plug electrical connector, which includes an insulating body, terminals and a shielding shell. The insulating body includes a base, an upper board, a lower board and a slot. The upper board and the lower board extend from one side of the base, and the slot is located between the upper board and the lower board. The terminals are located on the insulating body, and the terminals contain spring-type contacts, which are located in the slots. The shielding shell covers the insulating body, and the shielding shell includes a front shell and a rear shell. The front shell includes a front cover and a rear cover. The inside of the front cover is arranged on the upper plate and the lower plate. The rear cover is located behind the front cover. The inside of the rear cover is arranged on the base. The rear shell covers the rear side of the base, and the rear shell includes a front extension plate, which overlaps the rear cover body and is fixed to the front shell and the rear shell.

To sum up, the utility model uses the front end extension plate of the rear shell to overlap the top of the rear end cover, and the front end extension plate and the rear end cover are overlapped and fixed together to provide a stable connection between the front shell and the rear shell. Effect. Moreover, the front-end extension plate and the rear-end cover overlap to cover the gap between the front-end extension plate and the rear-end cover, providing good shielding and avoiding the gap between the front-end extension plate and the rear-end cover. The shielding is not good, resulting in radio frequency interference (Radio Frequency Interference, RFI for short). In addition, the front-end extension plate is overlapped with the rear-end cover body, so that the consistency and continuity of the signal transmission between the front shell and the rear shell can be maintained. In addition, the first/second clamping side walls of the upper/lower housing of the shielding housing are clamped on both sides of the circuit board, which can increase the positioning function of the upper/lower housing, and at the same time, the rear housing can also be electrically connected to the The circuit board provides effective conduction and grounding to reduce the problem of Electromagnetic Interference (EMI).

Description of drawings

FIG. 1 is an exploded schematic diagram of a plug electrical connector of the present invention.

Fig. 2 is an exploded schematic diagram of the outer shell of the utility model.

FIG. 3 is a schematic diagram (1) of the appearance of the shielding shell and the covering shell of the first embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view of the electrical plug connector of the present invention.

FIG. 5 is a schematic diagram (2) of the appearance of the shielding shell and the covering shell of the first embodiment of the present invention.

FIG. 6 is a schematic diagram (1) of the appearance of the shielding shell and the covering shell of the first embodiment of the present invention.

FIG. 7 is a schematic diagram (2) of the appearance of the shielding shell and the covering shell of the first embodiment of the present invention.

Symbol Description

100 plug electrical connector

1 insulating body

11 base

111 Groove

121 upper plate body

122 lower plate body

13 slots

2 terminals

2a upper terminal

2b lower terminal

21 Upper row shrapnel type contact end

22 Bottom row shrapnel type contact end

3 shielding shell

31 front shell

311 front cover

312 rear cover

3121 top surface

3122 back

313 abutment plate

32 rear shell

321 upper shell

3211 first clamping side wall

322 lower shell

3221 Second Clamping Sidewall

323 front extension plate

324 bending section

325 connection points

326 connection segment

327 positioning plate

4 circuit boards

41 upper surface

42 lower surface

43 contacts

6 cladding shell

7 transmission lines

71 wire.

Detailed ways

Fig. 1 is an exploded schematic diagram of a plug electrical connector of the present invention, Fig. 2 is an exploded schematic diagram of the rear shell of the present utility model, and Fig. 3 is a schematic diagram of the appearance of the shielding shell and the cladding shell of the first embodiment of the present utility model ( 1), Figure 4 is a schematic cross-sectional view of the electrical plug connector of the present invention. Referring to FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , it is an embodiment of a plug electrical connector 100 of the present invention. In this embodiment, the plug electrical connector 100 is a micro-USB (Type-C) connection interface specification, and the plug electrical connector 100 is a new type of USB connection interface specification, which can meet the transmission of USB3.0 signals or USB2.0 signals. . The electrical plug connector 100 includes an insulating body 1 , terminals 2 and a shielding shell 3 .

Please refer to FIG. 1 and FIG. 4 again. The insulating body 1 includes a base 11, an upper plate body 121, a lower plate body 122 and a slot 13. The upper plate body 121 and the lower plate body 122 are arranged on one side of the base 11. The groove 13 is defined between the upper plate body 121 and the lower plate body 122 . Here, the insulating main body 1 is formed with a base 11 , an upper plate 121 , a lower plate 122 and a slot 13 by injection-molding; 11 are set independently.

Please refer to FIG. 1 and FIG. 4 again. In this embodiment, the terminals 2 respectively include an upper row of terminals 2a and a lower row of terminals 2b. One side of the upper row of terminals 2a has an upper row of shrapnel-type contact ends 21, which are located on the lower surface of the upper board body 121. The upper row of shrapnel-type contact ends 21 extend to the slot 13 to transmit a set of first signals (i.e. USB3.0 signals ). One side of the lower row of terminals 2b has a lower row of shrapnel-type contact ends 22, which are located on the upper surface of the lower board body 122. The lower row of shrapnel-type contact ends 22 extend to the slot 13 to transmit a second set of signals (i.e. USB3.0 signals ).

Please refer to FIG. 1 , FIG. 2 and FIG. 4 , the shielding shell 3 is a hollow shell, and the shielding shell 3 covers the insulating body 1 , that is, the inside of the shielding shell 3 is disposed on the insulating body 1 . In this embodiment, the shielding shell 3 is composed of multiple components, and the shielding shell 3 includes a front shell 31 and a rear shell 32 . The front shell 31 includes a front cover body 311 and a rear end cover body 312. The inside of the front end cover body 311 is arranged on the upper plate body 121 and the lower plate body 122. The rear end cover body 312 is located at the rear side of the front end cover body 311. The rear end cover body The inside of 312 is disposed on the base 11, and here, the front cover 311 and the rear cover 312 are formed by the same plate. Here, the rear housing 32 covers the rear side of the base 11 , and the rear housing 32 includes a front extension plate 323 . The front extension plate 323 is located at a slightly central position in front of the rear housing 32 . In this embodiment, the front extension plate 323 overlaps the rear cover 312 and is fixed to the front shell 31 and the rear shell 32 . Moreover, the width of the front extension plate 323 is smaller than the width of the rear cover 312 , but not limited thereto. In some implementations, the width of the front end extension plate 323 can also be slightly equal to the width of the rear end cover body 312, that is, the front end extension plate 323 can cover the upper part of the rear end cover body 312 slightly, and, at the front end After the extension plate 323 is fixed to the rear cover 312 , the stabilizing effects of the front extension plate 323 and the rear cover 312 can be combined in a large-area fixing manner.

FIG. 5 is a schematic diagram (2) of the appearance of the shielding shell and the covering shell of the first embodiment of the present invention. Please refer to FIG. 2 , FIG. 3 and FIG. 5 , the front shell 31 covers the insulating body 1 , and the rear cover 312 covers the outside of the base 11 . Then, the rear shell 32 is combined with the front shell 31 from the rear side of the insulating body 1 forward, so that the front end extension plate 323 of the rear shell 32 overlaps the top of the rear cover 312 . The front end extension plate 323 and the rear end cover body 312 are fixed together. Here, the fixing method can be: the first method is that the rear shell 32 includes a connection point 325, which is located at the front end extension plate 323 and connected to the rear end cover 312, that is to say, the front end extension plate 323 and the front end extension plate 323 are connected by laser welding. The rear cover body 312 . The surface of the front extension plate 323 can be processed by laser welding, so that the connection point 325 is formed on the front extension plate 323, and the connection point 325 is connected to the rear end cover body 312, so that the front end extension plate 323 and the rear end cover body 312 are integrated and tightly fixed. The second method is that the rear shell 32 includes a connection section 326 (as shown in Figures 6 and 7), which is located at the end edge of the front extension plate 323 and connected to the rear cover 312, that is to say, the front extension can be connected by a tin sealing process. The plate 323 and the rear cover 312 . The end edge of the front end extension plate 323 can be connected with the entire solder section, so that the solder section of the end edge of the front end extension plate 323 is connected to the surface of the rear end cover body 312, so that the front end extension plate 323 and the rear end cover body 312 form a One piece and tightly fixed. The third way is that the front extension plate 323 includes a resisting piece (not shown), and the resisting piece is against the rear end cover 312, and the front end extension plate 323 and the rear end cover 312 are closely combined and fixed. The fourth method is that the rear cover 312 includes a resisting piece (not shown), and the resisting piece is resisted by the front extension plate 323 , and the front extension plate 323 and the rear cover 312 are closely combined and fixed. In the present invention, the front-end extension plate 323 is overlapped with the rear-end cover body 312 , so that the consistency and continuity can be maintained when conducting signals between the front shell 31 and the rear shell 32 . In addition, the front end extension plate 323 and the rear end cover body 312 are overlapped and fixed together, which can cover the gap between the front end extension plate 323 and the rear end cover body 312 and have good shielding performance, avoiding the front end extension plate 323 and the rear end cover body 312. The gaps between the rear cover bodies 312 result in poor shielding and radio frequency interference (RFI).

Please refer to FIG. 1 , FIG. 2 and FIG. 4 again. In this embodiment, the insulating body 1 further includes a circuit board 4 and a casing 6 . The circuit board 4 is combined on the rear side of the base 11 , and the outer casing 6 and the transmission line 7 are finally combined on the outside of the circuit board 4 . In addition, the circuit board 4 is protected by the shield case 3 covering the circuit board 4 . After the wire 71 of the transmission line 7 is soldered on the circuit board 4 , overmolding is performed on the outside of the circuit board 4 to avoid damage to the electronic components soldered on the circuit board 4 . For example, when wrapping the inner film glue, in the process of flushing the glue, the electronic components welded on the circuit board 4 are protected by the shielding shell 3, so as to prevent the glue from being poured into the shielding shell 3 and damage the soldering on the circuit board 4. of electronic components. Here, the rear shell 32 includes an upper shell 321 and a lower shell 322 that engage with each other, and the upper shell 321 and the lower shell 322 are respectively located above and below the circuit board 4 . The upper housing 321 further includes a first clamping side wall 3211 clamped on both sides of the circuit board 4, the lower housing 322 further comprises a second clamping side wall 3221, and the second clamping side wall 3221 is interlaced with the first clamping side wall. The side wall 3211 is clamped on both sides of the circuit board 4 .

In addition, please refer to FIG. 1, FIG. 2 and FIG. 4 again. In this embodiment, the circuit board 4 further includes an upper surface 41, a lower surface 42 and contacts 43. The contacts 43 are located on both sides of the upper surface 41 and the lower surface 42. When When the upper housing 321 and the lower housing 322 of the rear housing 32 are combined on the circuit board 4, the first clamping side wall 3211 and the second clamping side wall 3221 will be connected to the contacts 43, so that the rear housing 32 is electrically connected The circuit board 4 provides effective conduction and grounding functions to reduce the problem of Electromagnetic Interference (EMI).

Please refer to FIG. 1 , FIG. 2 and FIG. 4 again. In some embodiments, the rear cover 312 further includes a top surface 3121 and a back surface 3122 , and the front extension plate 323 overlaps the top surface 3121 or the back surface 3122 . That is to say, the front end extension plate 323 overlaps the top surface 3121 in FIG. 2 , but it is not limited thereto. In an embodiment, the front extension plate 323 can also overlap the back surface 3122 . The front-end extension plate 323 can be stacked on the rear-end cover body 312 by this overlapping action, and then the front-end extension plate 323 and the rear-end cover body 312 are fixed together by further processing.

Please refer to FIG. 1, FIG. 2 and FIG. 4 again. In some embodiments, the rear housing 32 further includes a bent section 324 connected to the front extension plate 323, and the rear housing 32 changes the position of the front extension plate 323 through the bending section 324. , so that the front end extension plate 323 is changed to different horizontal positions, so that the front end extension plate 323 overlaps the rear end cover body 312 . Moreover, holes are formed on both sides of the front end extension plate 323 , so that it is convenient to process on the front end extension plate 323 to form the bent section 324 during the bending process of the rear housing 32 .

Please refer to FIG. 1 , FIG. 2 and FIG. 4 again. In some embodiments, the base 11 further includes grooves 111 located on both sides of the upper and lower surfaces of the base 11 . The rear housing 32 further includes a positioning plate 327 located on two sides of the front extension plate 323 and fixed in the groove 111 . The positioning plate 327 can be fixed in the groove 111 to provide a fixing function between the rear case 32 and the base 11 . That is to say, by fixing the positioning plate 327 to the groove 111 , the problem that the rear case 32 will not move to both sides is provided. In addition, the front shell 31 further includes an abutting plate 313 extending obliquely toward the groove 111 , and the abutting plate 313 is located at the rear cover 312 and protrudes into the inner surface of the groove 111 . In this way, the abutting plate 313 is positioned above the positioning plate 327 , and the problem of the positioning plate 327 deviating from the groove 111 can also be prevented.

In the utility model, the front end extension plate of the rear shell is lapped on the top of the rear end cover body, and the front end extension plate is overlapped with the rear end cover body to be fixed together to provide a stabilizing effect between the front shell and the rear shell. Moreover, the front-end extension plate and the rear-end cover overlap to cover the gap between the front-end extension plate and the rear-end cover, providing good shielding and avoiding the gap between the front-end extension plate and the rear-end cover. The shielding is not good, resulting in radio frequency interference (Radio Frequency Interference, RFI for short). In addition, the front-end extension plate is overlapped with the rear-end cover body, so that the consistency and continuity of the signal transmission between the front shell and the rear shell can be maintained. In addition, the first/second clamping side walls of the upper/lower housing of the shielding housing are clamped on both sides of the circuit board, which can increase the positioning function of the upper/lower housing and at the same time make the rear housing electrically connected On the circuit board, it provides effective conduction and grounding, reducing the problem of Electromagnetic Interference (EMI).

Claims (11)

1. A plug electrical connector, comprising: An insulating body includes a base, an upper board, a lower board and a slot, the upper board and the lower board are arranged on one side of the base, and the slot is located between the upper board and the lower board between the lower plates; The upper row of terminals is located on the lower surface of the upper board, and the upper row of terminals includes an upper row of shrapnel-type contact ends, extending from the slot to transmit a set of first signals; The lower row of terminals is located on the upper surface of the lower board body, and the lower row of terminals includes a lower row of shrapnel-type contact ends, extending from the slot to transmit a set of second signals; and A shielding shell is internally arranged on the insulating body, and the shielding shell includes: A front shell, including a front end cover and a rear end cover, the inside of the front end cover is arranged on the upper plate and the lower plate, the rear end cover is located at the rear side of the front end cover, and the rear end the interior of the enclosure is positioned on the base; and A rear shell covers the rear side of the base, and is characterized in that the rear shell includes at least one front end extension plate, which overlaps the rear cover body and is fixed to the front shell and the rear shell. 2. The electrical plug connector according to claim 1, wherein the insulating body comprises a circuit board combined with the rear side of the base. 3. The electrical plug connector according to claim 2, wherein the rear shell comprises an upper shell located above the circuit board and an upper shell located below the circuit board and engaged with the upper shell. The lower shell, the upper shell includes at least one front end extension plate, which overlaps the rear end cover, the lower shell includes at least one front end extension plate, which overlaps the rear end cover, and the upper shell includes a The first clamping side walls are clamped on both sides of the circuit board, and the lower casing includes second clamping side walls interlaced with the first clamping side walls and clamped on both sides of the circuit board. 4. The electrical plug connector according to claim 3, wherein the circuit board comprises an upper surface, a lower surface and contacts, and the contacts are located on both sides of the upper surface and the lower surface and are electrically connected On the first clamping side walls and the second clamping side walls. 5 . The electrical plug connector according to claim 1 , wherein the rear cover comprises a top surface and a back surface, and the at least one front extension plate overlaps the top surface or the back surface. 6 . The electrical plug connector according to claim 1 , wherein the rear shell comprises a bent section connected to the at least one front extension plate. 7 . 7 . The electrical plug connector according to claim 1 , wherein the rear housing includes a connection point welded to the at least one front extension plate and connected to the rear housing. 8 . 8 . The electrical plug connector according to claim 1 , wherein the rear shell includes a connection section, which is tin-sealed on the edge of the at least one front extension plate and connected to the rear cover. 9 . 9. The electrical plug connector according to claim 1, wherein the base includes grooves, and the rear housing includes positioning plates, which are located on both sides of the at least one front end extension plate and fixed to the grooves . 10 . The electrical plug connector according to claim 9 , wherein the front housing includes abutting plate, which is located on the rear cover and is abutted against the grooves. 11 . 11 . The electrical plug connector according to claim 1 , wherein the upper board and the lower board extend from one side of the base. 11 .