TW201611435A - Electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector. The electrical connector includes an insulative housing, a plurality of contacts received in the insulative housing, an external shell covering the insulative housing, and an internal shell assembled between the insulative housing and the external shell. The electrical connector further includes a grounding member secured in the insulative housing. The grounding member connects with the internal shell.

Description

Electrical connector 【0001】

The present invention relates to an electrical connector, and more particularly to an electrical connector mounted to a circuit board.

【0002】

The existing I/O electrical connectors mounted on the circuit board generally have a structure in which an outer iron shell, an inner iron shell, a grounding strip, and a grounding terminal can form a grounding assembly. The inner iron shell is formed by drawing and is annularly disposed on the insulating body, and the outwardly extending elastic piece is formed on the inner wall of the outer iron shell to connect the inner iron shell and the outer iron shell. . At the same time, the two sides of the grounding strip are provided with protrusions to abut the inner side of the inner side of the inner iron shell, so that the outer iron shell, the inner iron shell and the grounding strip form the entire assembly. However, the inner iron shell has a complicated structure, is difficult to punch, and cannot stably contact the grounding piece and the grounding terminal to form a grounding assembly.

[0003]

In view of this, it is indeed necessary to further improve the existing electrical connector to solve the above problems.

[0004]

The object of the present invention is to provide an electrical connector in which the inner iron shell is difficult to punch, and it is convenient to form a stable grounding assembly.

[0005]

To achieve the above object, the present invention provides an electrical connector comprising:

[0006]

An insulative housing, the insulative housing includes a base and a tongue extending forward from the base;

【0007】

a plurality of terminals fixed to the insulative housing, the terminal having a contact portion extending to the tongue plate;

[0008]

a housing mounted on an outer side of the insulative housing, the housing forming a receiving space therein for receiving a contact portion between the tongue plate and the terminal;

【0009】

An inner iron shell disposed between the insulating body and the outer casing;

[0010]

The electrical connector further includes a grounding mechanism fixed to the insulating body, and the grounding mechanism is in contact with the inner iron shell.

[0011]

As a further improvement of the present invention, the terminal includes a terminal disposed at a top of the tongue plate and a terminal disposed at a bottom of the tongue plate. The grounding mechanism includes a grounding plate disposed between the upper row of terminals and the lower row of terminals, and the grounding Both sides of the sheet are electrically connected to the inner iron shell.

[0012]

As a further improvement of the present invention, the back end of the grounding piece has a solder fillet fixed to the circuit board.

[0013]

As a further improvement of the present invention, the inner iron shell includes an iron shell fastened to the top of the insulating body and an iron shell fastened under the bottom of the insulating body.

[0014]

As a further improvement of the present invention, the two sides of the upper iron shell and the lower iron shell are respectively provided with a snap-fit and a card slot, and the two sides of the grounding strip are provided with a connecting hole, and the buckle and the card slot are connected to the foregoing. The holes are snap-fitted and simultaneously in contact with the aforementioned grounding strip.

[0015]

According to a further improvement of the present invention, the grounding mechanism includes a grounding terminal located at two side edges of the tongue plate, and both sides of the inner iron casing are in contact with the grounding terminal.

[0016]

As a further improvement of the present invention, the inner iron shell includes an iron shell fastened on the top of the insulating body and an iron shell fastened under the bottom of the insulating body, and the two sides of the upper iron shell have a downward extending connection a piece, the two sides of the lower iron shell have an upwardly extending lower connecting piece, and the ends of the upper connecting piece and the lower connecting piece abut against the grounding terminal.

[0017]

As a further improvement of the present invention, the inner iron shell and the outer casing are electrically connected by contact with the connecting member.

[0018]

As a further improvement of the present invention, the connecting member is a convex or abutting piece protruding from the inner iron shell, so that the inner iron shell and the outer shell are in contact with each other by the convex hull or the resisting sheet.

[0019]

As a further improvement of the present invention, the connecting member is a slot formed in the outer casing such that the inner iron shell and the outer casing are connected by slot welding.

[0020]

Compared with the prior art, the electrical connector of the present invention can be connected to the inner iron shell through the grounding mechanism by providing an inner iron shell between the insulating body and the outer casing and a grounding mechanism fixed in the insulating body. And form a stable grounding assembly.

[0038]

1, 1'‧‧‧ electrical connectors
10‧‧‧Insulated body
101‧‧‧ base
102, 102'‧‧‧ tongue plate
11‧‧‧Upper insulation body
110‧‧‧上基部
111‧‧‧Upper tongue
112‧‧‧ Groove
113, 123‧‧‧ rear
114, 124‧‧‧ front
115‧‧‧Contact surface
116‧‧‧上上槽
12‧‧‧Insulated body
120‧‧‧ under the base
121‧‧‧Lower tongue
122‧‧‧Depression
125‧‧‧ docking
126‧‧‧ notch
127‧‧‧ lower storage trough
20‧‧‧ terminals
201, 201'‧‧‧ upper row of terminals
201a‧‧‧first terminal
201b‧‧‧second terminal
2011‧‧‧Upper contact
2012‧‧‧Upper slope
2013‧‧‧Upper welding department
2014‧‧‧Upper connection
2015‧‧‧Upper Elastic Department
202, 202'‧‧‧lower terminal
202a‧‧‧ third terminal
202b‧‧‧fourth terminal
2021‧‧‧Lower contact
2022‧‧‧lower row installation
2023‧‧‧lower connection
2024‧‧‧ Lower elastic part
30, 30'‧‧‧ inner iron shell
31, 31'‧‧‧Upper iron shell
311, 311 '‧‧‧ Installation Department
312‧‧‧ lap joint
313‧‧‧ card slot
314‧‧‧ convex hull
315‧‧‧Resistance
316‧‧‧Upper connecting piece
32, 32'‧‧‧ lower iron shell
321‧‧‧ buckle
322‧‧‧ lower connecting piece
40‧‧‧ Grounding piece
41‧‧‧ Main body
411‧‧‧connection hole
42‧‧‧ solder feet

[0021]

The first figure is a perspective view of the electrical connector of the present invention (the outer casing is removed).
The second figure is an exploded view of the electrical connector shown in the first figure.
The third figure is a perspective view of the insulative body shown in the second figure.
The fourth figure is an exploded view of the insulating body shown in the third figure.
The fifth figure is a perspective view of the terminal shown in the second figure.
The sixth figure is a perspective view of the inner iron shell shown in the second figure.
The seventh figure is a perspective view of the grounding piece shown in the second figure.
The eighth figure is a perspective view of the inner iron shell shown in the sixth figure assembled with the grounding piece shown in the seventh figure.
The ninth drawing is a perspective view of another embodiment of the electrical connector of the present invention (the outer casing is removed).
The tenth figure is a perspective view of the grounding piece, the inner iron shell and the terminal assembled in the ninth diagram.

[0022]

Referring to the first and second figures, the electrical connector 1 of the present invention can be mounted on an external circuit board (not shown) and can be mated with a mating connector (not shown). The electrical connector 1 includes an insulative housing 10, a plurality of terminals 20 fixed to the insulative housing 10, a housing (not shown) mounted on the outside of the insulative housing 10, and an inner iron disposed between the insulative housing 10 and the housing. The case 30 and a grounding mechanism fixed in the insulative housing 10 are provided.

[0023]

Referring to the third and fourth figures, in conjunction with the first and second figures, the insulative housing 10 includes a base portion 101 and a tongue plate 102 extending forward from the base portion 101. The terminal 20 includes a top portion of the tongue plate 102. The upper row of terminals 201 and the row of terminals 202 located below the bottom of the tongue plate 102. The insulative housing 10 includes an insulative housing 11 and a lower insulative housing 12 that are assembled to each other. The upper insulating body 11 includes an upper base portion 110 and a tongue plate 111 extending forward from the upper base portion 110, and the size of the upper base portion 110 in the thickness direction is larger than the thickness of the upper tongue plate 111 in the thickness direction. The recess of the upper base portion 110 away from the side of the lower insulating body 12 is formed with a recess 112. The recess 112 divides the upper base portion 110 into a rear portion 113 and a small portion 114 in a thickness direction. The front portion 114 The upper surface of the upper tongue plate 111 is located, and the size of the front portion 114 in the thickness direction is larger than the thickness of the upper tongue plate 111 in the thickness direction.

[0024]

The rear portion 113 includes a contact surface 115 that is in contact with the lower insulating body 12, and two bumps (not shown) are protruded from the contact surface 115. The upper insulating body 11 is formed to receive the receiving groove 116 of the plurality of terminals 20, and the upper receiving groove 116 extends through the upper base portion 110 and the upper tongue plate 111, and is opened on the upper tongue plate 111. 116 is exposed to the air.

[0025]

The lower insulating body 12 includes a lower base portion 120 and a tongue plate 121 extending forward from the lower base portion 120, and the size of the lower base portion 120 in the thickness direction is larger than the thickness of the lower tongue plate 121 in the thickness direction. The side of the lower base portion 120 away from the upper insulating body 11 is provided with a recessed portion 122. The recessed portion 122 divides the lower base portion 120 into a rear portion 123 and a small portion 124 in a thickness direction, and the front portion 124 is located The lower surface of the lower tongue plate 121, and the size of the front portion 124 in the thickness direction is larger than the thickness of the lower tongue plate 121 in the thickness direction.

[0026]

The rear portion 123 includes an abutting surface 125 abutting the contact surface 115. The abutting surface 125 is recessed with two recesses 126. When the upper insulating body 11 and the lower insulating body 12 are assembled and engaged, the bump is received in the The recess 126 further ensures that the upper insulating body 11 and the lower insulating body 12 are assembled and stabilized. The lower insulative housing 12 is formed to receive the receiving slot 127 of the plurality of terminals 20, and the lower receiving slot 127 extends through the lower base portion 120 and the lower tongue plate 121, and is disposed on the lower tongue plate 121. Exposure to the air.

[0027]

Referring to FIG. 5 and in conjunction with the first to fourth figures, the upper row of terminals 201 are spaced apart, and each of the upper rows of terminals 201 has a row of contact portions 2011 extending upwardly from the upper tongue plate 111, and is inclined downwardly. The upper row inclined portion 2012, the upper row of the welded portion 2013 extending horizontally from the end of the upper row inclined portion 2012, and the upper row connecting portion 2011 and the upper row inclined portion 2012 upper row connecting portion 2014 are connected. The upper row of contact portions 2011 are received in the upper receiving groove 116 for mating with the mating connector, and the upper end of the upper row of contact portions 2011 is provided with an upper elastic portion 2015, and the upper elastic portion 2015 protrudes into the front end of the upper receiving groove 116. And stuck in it. The aforementioned upper row of welded portions 2013 are arranged in a row and on the same horizontal surface to facilitate soldering to an external circuit board. The upper row of terminals 201 includes a first terminal 201a of a plurality of transmission signals or power sources and a second terminal 201b for transmitting a ground signal. The two sides of the upper row of terminals 201 are the second terminals 201b, and the second terminal 201b is between the foregoing The first terminal 201a. In the upper row of terminals 201, the first terminal 201a includes three pairs of differential signal terminals and a power terminal disposed between the differential signal terminal and the second terminal 201b or between two adjacent pairs of differential signal terminals.

[0028]

Each of the lower rows of terminals 202 is opposite to and aligned with each of the upper rows of terminals 201. The lower row of terminals 202 are spaced apart, and each of the lower rows of terminals 202 has a lower row of contact portions 2021 extending to the lower tongue plate 121 and is bent vertically downward for mounting to the lower circuit board mounting portion 2022 and the connection on the external circuit board. The lower row contact portion 2021 and the lower row mounting portion 2022 are connected to the lower row connecting portion 2023. The lower row of contact portions 2021 are received in the lower receiving groove 127 for mating with the mating connector, and the lower end of the lower row of contact portions 2021 is provided with a lower elastic portion 2024, and the lower elastic portion 2024 protrudes into the front end of the lower receiving groove 127. And stuck in it. The lower row mounting portions 2022 are arranged in two rows spaced back and forth, and the lower row mounting portions 2022 can be attached to the external circuit board by perforation welding. The lower row mounting portion 2022 may be designed to be in line or parallel with the lower row contact portion 2021 as needed. The lower row of terminals 202 includes a third terminal 202a of a plurality of transmission signals or power sources and a fourth terminal 202b for transmitting a ground signal. The two sides of the lower row of terminals 202 are the fourth terminal 202b, and the fourth terminal 202b is between the foregoing. The third terminal 202a. In the lower row of terminals 202, the third terminal 202a includes three pairs of differential signal terminals and a power terminal disposed between the differential signal terminal and the fourth terminal 202b or between two adjacent pairs of differential signal terminals. The upper row of terminals 201 and the lower row of terminals 202 are of the same type and arranged in reverse, so that the mating connector can be electrically connected to the electrical connector 1 of the present invention when the plug connector is inserted in the forward and reverse directions, and can perform signal transmission.

[0029]

The housing has a receiving space for inserting and mating the mating connector, and the upper tongue 111, the lower tongue 121, the upper row contacting portion 2011 and the lower row contacting portion 2021 are accommodated in the receiving space for receiving Docking with the docking connector in the space. In addition, the distance between the top of the upper tongue plate 111 and the top wall of the outer casing is the same as the distance between the bottom of the lower tongue plate 121 and the bottom wall of the outer casing, so that the butt connector can be electrically connected to the electrical connector 1 of the present invention. Sexual conduction and signal transmission.

[0030]

Referring to the sixth embodiment, the inner iron shell 30 includes an iron shell 31 that is fastened to the top of the upper insulating body 11 and an iron shell 32 that is fastened to the bottom of the lower insulating body 12. The upper iron shell 31 includes a mounting portion 311 and a lap portion 312 extending obliquely upward and rearward from the mounting portion 311. The mounting portion 311 is U-shaped, and the U-shaped sidewall of the mounting portion 311 is provided with a card. Slot 313.

[0031]

The lower iron shell 32 is disposed opposite to the upper iron shell 31, and the structure is substantially the same. The difference between the two is that the two side walls of the lower iron shell 32 are provided with a buckle 321 for the When the upper iron shell 31 and the lower iron shell 32 are assembled and fitted, they are accommodated in the card slot 313 to restrict the upper iron shell 31 from being separated from the lower iron shell 32. Certainly, the positions of the buckle 321 and the card slot 313 may be interchanged, or other structures that are mutually snap-fitted may be applied to the present invention, and details are not described herein.

[0032]

Referring to FIGS. 8 to 10, the inner iron shell 30 and the outer casing are in contact with each other by a connecting member. The connecting member is a convex hull 314 protruding from the overlapping portion 312 such that the inner iron shell 30 and the outer casing are in contact with each other by the convex hull 314. Of course, in another embodiment of the present invention, the connecting member is a slot (not shown) formed on the outer casing, so that the inner iron shell 30 and the outer casing are connected by the slot welding; or The connecting member includes a limiting groove (not shown) formed on the outer casing, and a resisting piece 315 elastically extending over the overlapping portion 312 so as to protrude into the foregoing limit by the resisting piece 315. The bit groove is used to achieve the contact between the inner iron shell 30 and the outer casing.

[0033]

Referring to the sixth to eighth figures, the grounding mechanism is in contact with the inner iron shell 30. The grounding mechanism includes a grounding strip 40 disposed between the upper row of terminals 201 and the lower row of terminals 202. The grounding strip 40 includes a flat body portion 41 extending downward from the rear end of the main body portion 41 to be fixed to the circuit board. Solder foot 42. The grounding strip 40 can prevent the signals between the upper and lower rows of terminals 201, 202 from interfering with each other. A connecting hole 411 is defined in the two sides of the main body portion 41. The latch 321 and the latching hole 313 are fastened and connected to the connecting hole 411 and are simultaneously in contact with the grounding strip 40, thereby implementing the two sides of the grounding strip 40. It is electrically connected to the inner iron shell 30 described above.

[0034]

Please refer to the ninth and tenth views, which are perspective views of another embodiment of the electrical connector 1 of the present invention. In the present embodiment, the electrical connector 1' is substantially identical in structure to the electrical connector 1, and the difference between the two is mainly in that the inner iron casing 30' is in contact with the grounding mechanism in a different conduction manner. The difference between the parts of the following description will be mainly explained in detail.

[0035]

In this embodiment, the grounding mechanism includes a grounding terminal located at two sides of the tongue plate 102', and the connecting portion 311' of the upper iron shell 31' has a connecting piece 316 extending vertically downwardly on both sides thereof, and the lower iron shell The sides of 32' have a vertically upwardly extending lower tab 322. Both sides of the upper row of terminals 201' are in contact with the upper connecting piece 316, and the grounding terminals are abutted on the two sides of the lower row of the terminals 202'. The upper grounding terminal is the second terminal 201b, the lower grounding terminal is the fourth terminal 202b, and the end of the upper connecting piece 316 abuts against the second terminal 201b, and the end of the lower connecting piece 322 abuts against the foregoing The fourth terminal 202b. The electrical connector 1' of the present invention can achieve the abutting engagement of the upper connecting piece 316 and the second terminal 201b, and the abutting connection of the lower connecting piece 322 and the fourth terminal 202b, thereby realizing the ground terminal and the foregoing The contact of the inner iron shell 30' is conducted.

[0036]

Compared with the prior art, the electrical connector 1 of the present invention is provided with an inner iron shell 30 between the insulative housing 10 and the outer casing, and a grounding mechanism fixed in the insulative housing 10, thereby being able to pass the aforementioned grounding mechanism and the inner portion. The contact of the iron shell 30 is turned on, and a stable grounding assembly is formed, so that the grounding property inside the electrical connector 1 is more stable, and the signal interference inside and outside the electrical connector 1 can be better shielded.

[0037]

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

1‧‧‧Electrical connector

10‧‧‧Insulated body

101‧‧‧ base

102‧‧‧ tongue plate

11‧‧‧Upper insulation body

12‧‧‧Insulated body

20‧‧‧ terminals

201a‧‧‧first terminal

201b‧‧‧second terminal

2011‧‧‧Upper contact

2015‧‧‧Upper Elastic Department

2022‧‧‧lower row installation

2024‧‧‧ Lower elastic part

30‧‧‧ inner iron shell

31‧‧‧Upper iron shell

312‧‧‧ lap joint

314‧‧‧ convex hull

32‧‧‧Under the iron shell

40‧‧‧ Grounding piece

Claims (10)

[Item 1] An electrical connector includes: an insulative housing, the insulative housing includes a base and a tongue extending forward from the base; a plurality of terminals fixed to the insulative housing, the terminal having a contact portion extending to the tongue; being mounted on the insulation An outer casing of the outer casing, wherein the outer casing forms a receiving space for receiving a contact portion between the tongue plate and the terminal; and an inner iron shell disposed between the insulating body and the outer casing; wherein the electrical connector further comprises a grounding mechanism fixed to the insulating body, wherein the grounding mechanism is in contact with the inner iron shell. [Item 2] The electrical connector of claim 1, wherein the terminal comprises a terminal disposed at a top of the tongue plate and a terminal disposed at a bottom of the tongue plate, wherein the grounding mechanism comprises a terminal disposed on the upper row and the lower row. The grounding piece between the two sides of the grounding piece is electrically connected to the inner iron shell. [Item 3] The electrical connector of claim 2, wherein the rear end of the grounding strip has a solder fillet fixed to the circuit board. [Item 4] The electrical connector of claim 2, wherein the inner iron shell comprises an iron shell fastened to the top of the insulating body and fastened to the bottom of the insulating body. [Item 5] The electrical connector of claim 4, wherein the two sides of the upper iron shell and the lower iron shell are respectively provided with a matching buckle and a card slot, and the grounding strip is provided with connecting holes on both sides thereof. The buckle and the card slot are fastened and connected in the connecting hole and are simultaneously in contact with the grounding piece. [Item 6] The electrical connector of claim 1, wherein the grounding mechanism comprises a grounding terminal located at two side edges of the tongue plate, and both sides of the inner iron casing are in contact with the grounding terminal. [Item 7] The electrical connector of claim 6, wherein the inner iron shell comprises an iron shell fastened to the top of the insulating body and an iron shell fastened under the bottom of the insulating body, and the foregoing upper iron shell The side has a connecting piece extending downwardly, and the two sides of the lower iron shell have an upwardly extending lower connecting piece, and the ends of the upper connecting piece and the lower connecting piece abut against the grounding terminal. [Item 8] The electrical connector of claim 1, wherein the inner iron shell and the outer shell are in contact with each other by a connecting member. [Item 9] The electrical connector of claim 8, wherein the connecting member is a convex or abutting piece protruding from the inner iron shell, so that the inner iron shell and the outer shell are covered by the convex hull or Resisting the sheet contact and conducting. [Item 10] The electrical connector of claim 8, wherein the connecting member is a slot formed in the outer casing such that the inner iron shell and the outer casing are connected by slot welding.