TWM515706U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector that is convenient to manufacture and install.

At the end of 2008, the USB Association released the USB standard version 3.0. This USB 3.0 connector is based on the conventional USB 2.0 connector. Two pairs of differential signal terminals and one grounding terminal are added to enhance the original. There is a USB connector transfer rate. The USB 3.0 connector has a signal transmission rate of 5G per second and can be plugged into both USB 2.0 and USB 3.0 docking connectors. However, with the development of the electronics industry, even the transmission speed of the USB 3.0 connector is gradually unable to meet the needs of consumers. Thus, in 2014, the USB Association released the USB standard of the Type C version, and the USB Type C is compared to the previous USB. The 3.0 connector transmission speed is further improved. However, its structure is more complicated than the USB 3.0 connector, and the installation is troublesome.

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

The purpose of this creation is to provide an electrical connector that is easy to manufacture and install.

To achieve the above object, the present invention relates to an electrical connector comprising: a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminals, the first terminals having a first a first fixing portion extending from the first fixing portion of the first extending portion and a first connecting portion extending from the other end of the first fixing portion to the first welding portion of the first body; the second terminal assembly, a plurality of second terminals and a second body fixed around the second terminals, the second terminals having a second fixing portion fixed in the second body, and extending from the second fixing portion to the second body a second contact portion and a second soldering portion extending from the other end of the second fixing portion to the second body; the central grounding unit having a central grounding plate fixed between the first body and the second body and extending to the first contact portion And a locking arm beside the second contact portion; the outer casing is mounted to the first terminal assembly and the second terminal assembly from the front to the rear, and is disposed around the outer periphery of the first terminal assembly and the second terminal assembly; the docking assembly has An insulating cover and an inner grounding piece fixed to the upper and lower sides of the insulating cover, the insulating cover being mounted rearwardly in the outer casing at the front end of the outer casing, and forming a docking space for receiving the first contact portion and the second contact portion, the inner grounding The sheet is formed with an inner abutting elastic piece protruding into the docking space and an outer abutting elastic piece protruding outward, and the outer abutting elastic piece and the outer casing abut.

As a further improvement of the present invention, the first terminal and the second terminal are respectively embedded in the first body and the second body in a row, the first welding portion extends rearward in the horizontal direction, and the second welding portion It extends perpendicular to the direction of the first weld and is located on the front side of the first weld.

As a further improvement of the present invention, the first welded portions are arranged in a row in the lateral direction, the second welded portions are arranged in two rows in the front-rear direction, and the second welded portions in the front and rear rows are staggered.

As a further improvement of the present invention, a front end of the insulating cover protrudes outwardly from a flange, and a rear end of the flange faces rearwardly abuts against a front end edge of the outer casing.

As a further improvement of the present invention, the first body and the second body have a front side portion matched with the mating component, and two sides of the front side portion are respectively formed with wedge-shaped blocks, and the inner side of the insulating cover is formed with a seat The holding groove of the wedge block is buckled.

As a further improvement of the present invention, the first body and the second body are provided with positioning blocks and grooves that are cooperatively positioned, and the second body further has a positioning post protruding toward the first body, the central grounding The positioning hole is matched with the positioning post; the electrical connector further comprises an insulating block that is injection molded on the first body and the second body and fixes the first body and the second body together.

As a further improvement of the present invention, the insulating cover includes a first insulating cover and a second insulating cover that are fastened to each other, the inner grounding piece includes a first inner grounding piece fixed to the first insulating cover and fixed to a second inner grounding piece on the second insulating cover, the abutting space is formed between the first insulating cover and the second insulating cover, and the inner abutting elastic piece is located in front of the first contact portion and the second contact portion.

As a further improvement of the present invention, the first inner grounding piece and the second inner grounding piece are respectively embedded and fixed on the first insulating cover and the second insulating cover, and the first insulating cover and the second insulating cover respectively A plurality of long grooves penetrating up and down and corresponding to the first contact portion or the second contact portion are formed.

As a further improvement of the present invention, the central grounding unit further has a grounding leg extending downward from the central grounding piece, the outer casing having an annular portion on the front side, a shielding portion extending rearward from the annular portion, and A solder fillet extending downward from the mask portion, the grounding leg and the solder fillet being disposed adjacent to each other in the lateral direction.

As a further improvement of the present invention, the central grounding unit further has an elastic arm extending outward from the two sides of the central grounding piece, and the elastic arm abuts against an inner wall surface of the outer casing.

The present invention is provided by separating the docking component from the terminal component and, when the housing is the reference, the terminal component is loaded forward from the rear side of the housing, and the docking component is installed backward from the front end of the housing, thereby making the first component of the terminal assembly The first welded portion of one terminal and the second welded portion of the second terminal may extend in different directions, or may be easily installed even if it extends beyond the annular portion of the outer casing when bent downward. Moreover, the first and second terminals, the first and second bodies, the inner grounding piece and the insulating cover are respectively assembled into components, and then assembled to each other. The manufacturing method makes the structural design of each part relatively simple, and the corresponding mold design It is also simpler and easier to manufacture.

100, 100'‧‧‧ electrical connectors
900‧‧‧Circuit board
901‧‧‧ receiving hole
1‧‧‧Terminal components
4‧‧‧First terminal assembly
41‧‧‧First terminal
410‧‧‧First Fixed Department
411‧‧‧First contact
412‧‧‧First Welding Department
42‧‧‧First Ontology
5‧‧‧Second terminal assembly
51‧‧‧second terminal
510‧‧‧Second fixed department
511‧‧‧Second contact
512‧‧‧Second welding department
52‧‧‧Second ontology
421‧‧‧ Main body
4211‧‧‧First place slot
4212‧‧‧Depression
4213‧‧‧ gap
5211‧‧‧Second handicap slot
5222‧‧‧Positioning column
5212‧‧‧Installation Department
5213‧‧‧Bumps
422‧‧‧ front side
4221‧‧‧Wedge block
4222‧‧‧ Positioning block
4223‧‧‧ Groove
6, 6'‧‧‧ central grounding unit
61, 61'‧‧‧ central grounding piece
611‧‧‧Positioning holes
612‧‧‧ openings
62‧‧‧Lock arm
63‧‧‧ Grounding feet
64'‧‧‧Bounce arm
7‧‧‧Insulation block
2‧‧‧Docking components
21‧‧‧Insulation cover
211‧‧‧ rim
212‧‧‧ holding slot
20‧‧‧ docking space
23‧‧‧First insulation cover
24‧‧‧Second insulation cover
25‧‧‧Coordination Department
251‧‧‧Perforation
26‧‧‧ Housing Department
261‧‧‧ Protrusion
262‧‧‧Long slot
263‧‧‧ openings
264‧‧‧ Snap block
265‧‧‧ buckle slot
266‧‧‧Terminal receiving slot
22‧‧‧Inground grounding piece
27‧‧‧First inner grounding piece
28‧‧‧Second inner grounding piece
Abutment shrapnel in 221‧‧
222‧‧‧ outer abutment shrapnel
3, 3'‧‧‧ shell
31‧‧‧ ring
311‧‧‧Shrap
312‧‧ ‧ gap
32‧‧‧Mask Department
33‧‧‧ solder feet

The first figure is a perspective view of a preferred embodiment of the present invention in conjunction with a circuit board.
The second figure is a perspective view of the first connector shown in the first figure when the electrical connector is separated from the circuit board.
The third figure is a partially exploded view of the electrical connector shown in the first figure.
The fourth figure is a partially exploded view of the other angle of the electrical connector shown in the third figure.
The fifth figure is an exploded perspective view of the electrical connector shown in the first figure.
Figure 6 is an exploded perspective view of another angle of the electrical connector shown in Figure 5.
Figure 7 is a partially exploded view of another preferred embodiment of the present electrical connector.

Referring to FIG. 1 to FIG. 6 , a preferred embodiment of the present invention is shown in FIG. 6 . The electrical connector 100 is a USB Type C connector for soldering to a circuit board 900 and includes The terminal assembly 1, the outer casing 3 disposed around the periphery of the terminal assembly, and the docking assembly 2 mounted rearward from the front end of the outer casing 3 to the inner side of the outer casing 3.

Referring to the third to sixth figures, in the embodiment, the terminal assembly 1 includes a first terminal assembly 4 and a second terminal assembly 5 stacked on each other in the up and down direction, and is located at the first terminal assembly 4. A central grounding unit 6 between the second terminal assembly 5 and an insulating block 7 that securely connects the first terminal assembly 4, the second terminal assembly 5, and the central ground unit 6. Of course, the insulating block 7 may not be provided, and only by the other fastening structures, such as hooks and card slots (not shown), which are mutually fastened between the first terminal assembly 4 and the second terminal assembly 5, The first terminal assembly 4, the second terminal assembly 5, and the central ground unit 6 can be fixed together.

The first terminal assembly 4 has a plurality of first terminals 41 and a first body 42 fixed around the first terminals 41. The first terminal 41 has a first fixing portion 410 fixed in the first body 42 , a first contact portion 411 extending forward from the first fixing portion 410 to the first body 42 , and a first fixing portion 410 from the first fixing portion 410 . One end extends out of the first weld portion 412 of the first body 42. In the embodiment, the first terminal 41 is embedded in the first body 42 in a row, and the first contact portions 411 are protruded in a row in front of the first body 42. The first welding The portion 412 is bent downwardly from the rear end of the first fixing portion 410 and then extended rearward in the horizontal direction to be soldered to the circuit board 900 by surface soldering. The first welded portions 412 are disposed in a row in the lateral direction.

The second terminal assembly 5 has a plurality of second terminals 51 and a second body 52 fixed around the second terminals 51. The second terminal 51 has a second fixing portion 510 fixed in the second body 52, a second contact portion 511 extending forward from the second fixing portion 510 to the second body 52, and a second fixing portion 510 from the second fixing portion 510. A second welded portion 512 of the second body 52 extends from one end. The second terminal 51 is also embedded in the second body 52 in a row. The second contact portions 511 are protruded in front of the second body 52 in a row, and the second soldering portion 512 is perpendicular to the first soldering portion. The portion 412 extends downward from the rear side of the second body 52 and is located on the front side of the first welded portion 412. The second welded portion 512 is arranged in two rows in the front-rear direction, and the second and second rows of the second welded portions 512 are alternately arranged.

The first body 42 and the second body 52 respectively have a main body portion 421 on the rear side and a front side portion 422 that is connected to the main body portion 421 and located on the front side. The front side portion 422 is smaller than the main body portion 421 in the up-and-down direction and the left-right direction, and a wedge-shaped block 4221 is protruded outwardly from the left and right sides of the front side portion 422. The front side portion 422 of the first body 42 and the front end of the front side portion 422 of the second body 52 are respectively provided with a positioning block 4222 and a groove 4223 for the first body 42 and the second body 52 to cooperate with each other. .

The main body portion 421 of the first body 42 is formed with a first retaining groove 4211 that is vertically penetrated for positioning the first terminal 41 by a mold (not shown); and a second recess is formed on both sides of the first retaining groove 4211. The recess 4212 is recessed from the outer surface of the second body 52. The second body portion 421 of the second body 52 is also recessed toward the side of the first body 42 to form a second retaining groove 5211, and a positioning post 5222 for positioning the central grounding unit 6 is also protruded. The positioning posts 5222 are spaced apart from each other. The pair of positioning posts 5222 are different in shape to prevent the central grounding unit 6 from being installed incorrectly. In this embodiment, one positioning post 5222 is circular and the other positioning post 5222 is a moment. type. In addition, at a position of the second soldering portion 512 of the second terminal 51, the main body portion 421 of the second body 52 faces away from the lower side surface of the first body 42 and is further recessed to form a mounting portion 5212 for mounting the circuit board 900. A pair of protrusions 5213 spaced apart in the lateral direction are protruded downward from the front side of the mounting portion 5212.

The central grounding unit 6 has a central grounding piece 61 fixed between the first body 42 and the second body 52 and a locking arm 62 extending to both sides of the first contact portion 411 and the second contact portion 511. The central grounding piece 61 is provided with a pair of positioning holes 611 that cooperate with the positioning post 5222 and an elongated opening 612 between the positioning holes 611. The first yielding groove 4211 and the second retaining groove 5211 are connected up and down at the opening 612. In the embodiment, the central grounding unit 6 further has a grounding leg 63 bent downward from the central grounding piece 61 for insertion and fixing to the circuit board 900. The grounding leg 63 is disposed corresponding to the locking arm 62. The main body portion 421 of the first body 42 and the rear end of the main body portion 421 of the second body 52 are respectively formed with a notch 4213. The grounding leg 63 extends rearward from the notch 4213 and then extends vertically downward.

The insulating block 7 is injection molded on the first body 42 , the second body 52 and the central grounding unit 6 , and is embedded in the first retaining groove 4211 , the second retaining groove 5211 and the opening 612 , thereby being first The body 42 and the second body 52 are firmly fixed together.

Referring to the first to sixth figures, the outer casing 3 is mounted rearwardly from the front side to the outer periphery of the terminal assembly 1, and has an annular portion 31 on the front side and having an elliptical annular design, and a cover extending rearward from the annular portion 31. The cover portion 32 and the solder fillet 33 extending downward from the mask portion 32. The annular portion 31 surrounds the periphery of the first terminal assembly 4 and the second terminal assembly 5, and the mask portion 32 covers the top of the rear side of the first body 42. The grounding leg 63 of the central grounding unit 6 and the soldering leg 33 of the outer casing 3 are disposed adjacent to each other in the lateral direction. The circuit board 900 is provided with a receiving hole 901 for simultaneously receiving the grounding leg 63 and the soldering leg 33. In addition, the top rear side of the annular portion 31 is provided with a pair of forwardly extending elastic pieces 311 which cooperate with the recessed portions 4212 of the first body 42 to prevent the outer casing 3 from moving forward relative to the first body 42. The bottom end of the annular portion 31 is provided with a pair of rearwardly opening notches 312. The protrusions 5213 of the second body 52 are received in the notches 312, and the housing 3 is rearwardly restrained. position.

The docking unit 2 is mounted rearwardly in the outer casing 3 at the front end of the outer casing 3, and has an insulating cover 21 and an inner grounding piece 22 fixed to the upper and lower sides of the insulating cover 21. A flange 211 is protruded outwardly from the front end of the insulating cover 21, and the rear end of the flange 211 faces rearward to abut the front edge of the outer casing 3. The rear end of the insulating cover 21 is sleeved on the outer side of the front side portion 422 of the first body 42 and the second body 52, and a latching groove 212 is formed on the inner side of the rear end to be fastened to the wedge block 4221. A mating space 20 for accommodating the first contact portion 411 and the second contact portion 511 is formed on a front side of the insulating cover 21 .

Referring to the third to sixth figures, in particular, in the present embodiment, the insulating cover 21 includes a first insulating cover 23 and a second insulating cover 24 that are fastened to each other in the up and down direction. The first insulating cover 23 and the second insulating cover 24 are provided in the same structure, and are respectively provided with a fitting portion 25 on the rear side to cooperate with the front side portion 422 of the terminal assembly 1, and a receiving portion connected to the front side of the engaging portion 25. 26. The fastening groove 212 is formed on the rear side of the engaging portion 25 . The docking space 20 is formed between the first insulating cover 23 and the receiving portion 26 of the second insulating cover 24. A plurality of laterally spaced protrusions 261 are protruded from the rear end of the accommodating portion 25 toward the mating space 20, and a plurality of long grooves 262 are formed in the front of the protrusion 261. The opening 263 of the accommodating portion 26 is vertically spaced apart from the front side of the groove 262, and the engaging block 264 and the engaging groove 265 for fastening and positioning the first insulating cover 23 and the second insulating cover 24 are respectively disposed on the front side. The long groove 262 extends in the front-rear direction, and the protrusion 261 and the long groove 262 are laterally staggered. Specifically, the protrusion 261 is located between the adjacent long grooves 262; and, in the first insulating cover 23 and the second After the insulating covers 24 are fastened to each other, the protrusions 261 on the first insulating cover 23 and the second insulating cover 24 are abutted up and down, so that the rear end of the combined insulating cover 21 forms a plurality of terminals located between the adjacent protrusions 261. In the receiving groove 266, the terminal receiving groove 266 corresponds to the long groove 262.

The inner grounding piece 22 is embedded and fixed on the insulating cover 21, and includes a first inner grounding piece 27 embedded in the first insulating cover 23 and a second inner side fixed in the second insulating cover 24. Grounding lug 28. Each of the inner grounding pieces 22 is formed with an inner abutting elastic piece 221 protruding into the abutting space 20 and an outer abutting elastic piece 222 protruding outward. The inner abutting elastic piece 221 is formed by bending inwardly at the front end of the inner grounding piece 22, and protrudes from the opening 263 into the abutting space 20 so as to be located in front of the first contact portion 411 and the second contact portion 511. The outer abutting elastic piece 222 protrudes outward at a middle position of the fitting portion 25 and abuts against the outer casing 3. The engaging portion 25 of the insulating cover 21 is provided with a through hole 251 penetrating vertically, and the outer abutting elastic piece 222 is located at the through hole 251.

The present invention is manufactured and mounted: first, the first terminal assembly 4 and the second terminal assembly 5 are formed; secondly, the central ground unit 6 is positioned by the positioning hole 611 and the second body 52. The pillars 5222 are cooperatively positioned on the second terminal assembly 5; then, the first terminal assembly 4 and the second terminal assembly 5 are cooperatively positioned by the positioning block 4222 and the recess 4223, and then formed thereon by injection molding. The first terminal assembly 4, the second terminal assembly 5 and the central grounding unit 6 are fixed together with the insulating block 7 to form the terminal assembly 1; further, the outer casing 3 is mounted from the front to the rear to the periphery of the terminal assembly 1, and The elastic piece 311 and the notch 312 on the outer casing 3 are respectively engaged with the recessed portion 4212 and the convex block 5213 of the terminal assembly 1; and the previously formed butt assembly 2 which is formed and mounted is installed backward from the front end of the outer casing 3 into the outer casing 3. The fastening groove 212 on the insulating cover 21 of the docking component 2 is positioned and latched with the wedge block 4221 on both sides of the terminal assembly 1.

During the mounting process of the docking assembly 2, the first contact portion 411 and the second contact portion 511 respectively penetrate into the terminal receiving slots 266 between the adjacent protrusions 261, so that the docking assembly 2 moves backward, adjacent A contact portion 411 or an adjacent second contact portion 511 is not in contact with each other and is short-circuited to each other, and after the mounting is completed, the rear ends of the first contact portion 411 and the second contact portion 511 are spaced apart from each other on the insulating cover 21 Between the rear end projections 261, the front side corresponds to the upper and lower grooves 262 of the accommodating portion 26.

In summary, the present electrical connector 100 is provided by separately separating the docking assembly 2 from the terminal assembly 1 and using the outer casing 3 as a reference, and the terminal assembly 1 is loaded forward from the rear side of the outer casing 3, and the outer side of the front end is formed. The docking assembly 2 of the flange 211 is mounted rearwardly from the front end of the outer casing 3 into the outer casing 3, whereby the first welded portion 412 of the first terminal 41 and the second welded portion 512 of the second terminal 51 in the terminal assembly 1 can be oriented in different directions. It is easy to install even if it extends beyond the annular portion 31 of the outer casing 3 when extending downward or downward. Moreover, the first and second terminals 41, 51 and the first and second bodies 42, 52, the first and second inner grounding pieces 27, 28, and the first and second insulating covers 23, 24 are respectively assembled into components. Then, the mutual assembly is performed. The manufacturing method makes the structural design of each part relatively simple, and the corresponding mold design is relatively simple and easy to manufacture.

Referring to the seventh embodiment, as another preferred embodiment of the present invention, the grounding leg 63 is not extended at the rear end of the central grounding unit 6' in the electrical connector 100', but is attached to the central grounding plate 61'. The elastic arms 64' are respectively extended outwardly on both sides thereof, and the elastic arms 64' are abutted against the inner wall surface of the outer casing 3' to be grounded. The other structure of the electrical connector 100' in this embodiment is the same as that of the above-described electrical connector 100, and therefore has the advantageous effects of being easy to manufacture and install.

It is to be understood that the equivalent changes to the present invention made by the teachings of the present invention should be included in the scope of the present invention.

1‧‧‧Terminal components

4‧‧‧First terminal assembly

5‧‧‧Second terminal assembly

6‧‧‧Central grounding unit

7‧‧‧Insulation block

3‧‧‧ Shell

31‧‧‧ ring

32‧‧‧Mask Department

33‧‧‧ solder feet

2‧‧‧Docking components

20‧‧‧ docking space

21‧‧‧Insulation cover

22‧‧‧Inground grounding piece

262‧‧‧Long slot

Claims (10)

An electrical connector comprising:
a first terminal assembly having a plurality of first terminals and a first body fixed around the first terminals, the first terminals having a first fixing portion fixed in the first body, and one end forward from the first fixing portion a first contact portion extending from the first body and a first solder portion extending from the other end of the first fixing portion to the first body;
a second terminal assembly having a plurality of second terminals and a second body fixed around the second terminals, the second terminals having a second fixing portion fixed in the second body and extending forward from the second fixing portion a second contact portion of the second body and a second solder portion extending from the other end of the second fixing portion;
a central grounding unit having a central grounding plate fixed between the first body and the second body and a latching arm extending to a side of the first contact portion and the second contact portion;
The outer casing is mounted from the front to the rear to the first terminal assembly and the second terminal assembly, and is disposed around the outer periphery of the first terminal assembly and the second terminal assembly;
The docking assembly has an insulating cover and an inner grounding piece fixed to the upper and lower sides of the insulating cover. The insulating cover is mounted rearwardly in the outer casing at the front end of the outer casing, and is formed with a docking space for receiving the first contact portion and the second contact portion. The inner grounding piece is formed with an inner abutting elastic piece protruding into the docking space and an outer abutting elastic piece protruding outward, and the outer abutting elastic piece and the outer casing abut. The electrical connector of claim 1, wherein the first terminal and the second terminal are respectively embedded in the first body and the second body in a row, the first soldering portion being horizontally Extending backward, the second welded portion extends perpendicular to the direction of the first welded portion and is located on the front side of the first welded portion. The electrical connector of claim 2, wherein the first welded portions are arranged in a row in a lateral direction, the second welded portions are arranged in two rows in the front-rear direction, and the second welded portions are arranged in the front and rear rows. Interlaced settings. The electrical connector of claim 1, wherein a front end of the insulating cover protrudes outwardly from a flange, and a rear end of the flange faces rearwardly abuts against a front end edge of the outer casing. The electrical connector of claim 1, wherein the first body and the second body have a front side portion that cooperates with the docking assembly, and the two sides of the front side portion are respectively formed with wedge-shaped blocks, A fastening groove is formed on the inner side of the insulating cover to be fastened to the wedge block. The electrical connector of claim 1, wherein the first body and the second body are provided with positioning blocks and grooves that are cooperatively positioned, and the second body further has a direction protruding toward the first body. Positioning post, the central grounding piece is provided with a positioning hole matched with the positioning post; the electrical connector further comprises injection molding on the first body and the second body, and fixing the first body and the second body Insulating blocks together. The electrical connector of claim 1, wherein the insulating cover comprises a first insulating cover and a second insulating cover that are fastened to each other, and the inner grounding piece includes a first fixed cover An inner grounding piece and a second inner grounding piece fixed to the second insulating cover, the abutting space is formed between the first insulating cover and the second insulating cover, wherein the inner abutting elastic piece is located at the first contact portion and the first The front of the two contacts. The electrical connector of claim 7, wherein the first inner grounding piece and the second inner grounding piece are respectively embedded and fixed on the first insulating cover and the second insulating cover, the first insulating cover And the second insulating cover are respectively formed with a plurality of long grooves penetrating vertically and corresponding to the first contact portion or the second contact portion. The electrical connector of claim 1, wherein the central grounding unit further has a grounding leg extending downwardly from the central grounding piece, the outer casing having an annular portion on the front side, the annular portion a mask portion extending rearward and a solder tail extending downward from the mask portion, the grounding leg and the solder tail being disposed adjacent to each other in the lateral direction. The electrical connector of claim 1, wherein the central grounding unit further has a resilient arm extending outwardly from opposite sides of the central grounding strip, the resilient arm abutting an inner wall surface of the outer casing.