TWI525930B - Electrical connector and the assembly of it - Google Patents

Description

Electrical connector and assembly method thereof

The invention relates to an electrical connector and an assembly method thereof, in particular to a low-profile electrical connector and an assembly method thereof.

Taiwan's new patent No. 274932 discloses an electrical connector comprising an insulative housing, a conductive terminal held on the insulative housing, and a shielded housing assembled to the insulative housing, the insulative housing including a base and extending forward from the base The tongue plate, the conductive terminal comprises a contact portion respectively disposed on the tongue plate and the lower surface, a soldering portion extending from the outer surface of the base portion and disposed on the upper and lower sides of the tongue in two rows, and the holding portion of the connecting contact portion and the welding portion a portion of the retaining portion disposed on the same surface of the tongue plate is offset from the base portion. The retaining portion of the conductive terminal is provided to facilitate structural miniaturization of the electrical connector itself, but when the electrical connector is soldered to the circuit board, Not conducive to the low configuration of the electrical connector.

Therefore, it is necessary to improve the aforementioned electrical connector to solve the aforementioned drawbacks in the prior art.

It is an object of the present invention to provide an electrical connector having a positioning plate and a method of assembling the same.

In order to achieve the foregoing objective, the present invention adopts the following technical solution: an electrical connector includes an insulative housing, a conductive terminal, and a first positioning plate, the insulative housing includes a base, The conductive terminal includes a first conductive terminal and a second conductive terminal, and each of the conductive terminals includes a fixing portion fixed to the base, and extends from the fixing portion to the docking portion. a contact portion, a vertical welding portion, and an intermediate portion connecting the fixing portion and the welding portion, the intermediate portion includes a vertical portion and a horizontal portion, and the positioning portion and the lower surface of the first positioning plate are provided with a positioning groove. The horizontal portion of the first conductive terminal is arranged in the positioning groove of the positioning portion, the horizontal portion of the second conductive terminal is arranged in the positioning groove of the first positioning plate, and the support portion is provided on both sides of the positioning portion. The support portion has a circuit board mounting surface, and the support portion is provided with a fastening groove on the opposite inner side surface, and the first positioning plate is provided with a fastening block on both sides, and the fastening block is assembled from the rear to the fastening groove The first positioning plate is located between the first conductive terminal and the second conductive terminal.

Compared with the prior art, the present invention has the following advantages: the support portion is provided with a fastening groove for facilitating assembly of the first positioning plate, and the first positioning plate is disposed between the first and second conductive terminals, and is opposite to the first conductive The terminals are positioned to prevent signal interference between the first and second conductive terminals.

In order to solve the above problems, the electrical connector of the present invention adopts the following technical solution: an assembly method of the electrical connector, the assembling step includes: Step 1: providing an insulating body, the insulating body has a positioning portion, and the lower surface of the positioning portion is provided a positioning groove is provided on both sides of the positioning portion, and the supporting portion is provided with a fastening groove on the opposite inner side surface; in step 2, a first conductive terminal is provided, and the first conductive terminal is assembled from the rear of the insulating body and Arranging in the positioning groove of the lower surface of the positioning portion, at this time, the welded portion of the first conductive terminal is horizontally disposed; Step 3: providing a first positioning plate, the lower surface of the first positioning plate is provided with a positioning slot, and the two sides are provided with a fastening block, and the fastening block of the first positioning plate is assembled from the rear to the front by the fastening groove In the insulative housing, the first positioning plate is located below the first conductive terminal; in step 4, the second conductive terminal is disposed, and the second conductive terminal is disposed in the positioning groove of the lower surface of the first positioning plate. The soldering portion of the second conductive terminal is vertically disposed in a front-rear direction; in step 5, the soldering portion of the first conductive terminal is bent from a horizontal state into a vertical state shifted back and forth, and the soldering portion is located at the second conductive terminal The second positioning plate is provided with a second positioning plate, and the second positioning plate is provided with a plurality of perforations corresponding to the first and second conductive terminal welding portions, and the perforation of the second positioning plate corresponds to the first The welded portion of the second conductive terminal is mounted upward on the insulative housing.

Compared with the prior art, the present invention has the following advantages: the support portion is provided with a fastening groove for facilitating assembly of the first positioning plate, and the first positioning plate is disposed between the first and second conductive terminals, and is opposite to the first conductive The terminals are positioned to prevent signal interference between the first and second conductive terminals.

100‧‧‧Electrical connector

1‧‧‧Insulating body

10‧‧‧ base

11‧‧‧Docking Department

12‧‧‧ Positioning Department

121, 41‧‧‧ positioning slots

13‧‧‧Support

131‧‧‧Board mounting surface

14‧‧‧Locking slot

2‧‧‧Electrical terminals

20‧‧‧Power terminal

21‧‧‧First conductive terminal

22‧‧‧Second conductive terminal

23, 23a, 23b‧‧‧ fixed department

24, 24a, 24h‧‧‧Contacts

25, 25a, 25b‧‧‧ welding department

26‧‧‧Intermediate

261, 261a, 261b‧‧‧ vertical

262, 262a, 262b‧‧‧ horizontal

3‧‧‧Shaded housing

30‧‧‧ docking box

31‧‧‧Front stop

32‧‧‧ Rear stop

33‧‧‧Block

4‧‧‧First Positioning Plate

42‧‧‧holding block

5‧‧‧Second positioning plate

51‧‧‧First Step

52‧‧‧second step

53‧‧‧Protruding

54‧‧‧Perforation

6‧‧‧Circuit board

The first figure is a perspective view of the electrical connector of the present invention mounted on a circuit board; the second figure is a perspective view of the electrical connector not shown on the circuit board shown in the first figure; the third figure is the electrical connector shown in the second figure. 3D exploded view; the fourth figure is an exploded perspective view of the other angle of the electrical connector shown in the third figure; the fifth to seventh figures are cross-sectional views along the line VII-VII shown in the second figure, showing the end The assembling process of the first and second positioning plates; and the eighth drawing is a perspective view of the shielding case when not mounted on the insulating body.

As shown in the first and second figures, the electrical connector 100 of the present invention is a sinker type and is mounted in a notch of the circuit board 6. The electrical connector 100 mainly includes an insulative housing 1 and is fixed on the insulative housing. The conductive terminal 2 and the shielding case 3 covering the insulating body.

Referring to the third and fourth figures, the insulative housing 1 has a longitudinally disposed base portion 10, an abutting portion 11 extending forward from the base portion 10, and a positioning portion 12 extending rearward from the base portion 10, the positioning portion 12 is located above the docking portion 11. The lower surface of the positioning portion 12 is provided with a positioning groove 121. The two sides of the positioning portion 12 are respectively provided with a supporting portion 13 , and the inner side of the supporting portion 13 is provided with a fastening groove 14 , and the supporting portion 13 The lower surface is the board mounting surface 131.

The conductive terminal 2 includes a first conductive terminal 21 and a second conductive terminal 22 (only some of the terminals are shown on the drawing). The conductive terminal includes a fixing portion 23 fixed to the base portion 10, a contact portion 24 extending from the fixing portion 23 to the abutting portion 11, a soldering portion 25 soldered to the circuit board 6, and an intermediate portion 26 connecting the fixing portion 23 and the soldering portion 25. The intermediate portion 26 includes a vertical portion 261 and a horizontal portion 262. The first and second conductive terminals include a power terminal 20 having a surface area greater than a surface area of the contact portion 24 of the other conductive terminals. The fixing portion 23b of the second conductive terminal 22 is alternately arranged up and down to reduce the longitudinal dimension of the electrical connector. Of course, the fixing portion 23a of the first conductive terminal 21 may be disposed in a staggered manner alternately up and down in the case where the height direction permits. In this embodiment, the structure of the second conductive terminal 22 is substantially the same as that of the first conductive terminal 21, and the first conductive terminal and the second conductive end are not separately described in this paragraph. The specific structure of the child, and the uniform name. It should be noted that, in order to more clearly introduce the first conductive terminal 21 and the second conductive terminal 22, the number of the conductive terminal is followed by the structure of the first conductive terminal 21, and the structure of the second conductive terminal 22 is added b. .

The shielding case 3 covers the base 10 and forms a docking frame opening 30 around the abutting portion 11 (ie, the tongue plate). A front stop portion 31 and a stop portion 32 located below the front stop portion 31 extend rearwardly from opposite sides of the mating frame opening 30. The front stop portion 31 abuts against the positioning portion 12 to prevent the shield housing 3 from moving backward, and the rear stop portion 32 is bent inwardly with a flap 33 for preventing the shield housing 3 from moving forward.

The electrical connector further includes a first positioning plate 4 and a second positioning plate 5. The lower surface of the first positioning plate 4 has a positioning groove 41, and the two sides are provided with a fastening block 42. The second positioning plate 5 is disposed in a stepped shape, and the second positioning plate 5 includes a first step portion 51 and a second step portion 52 located behind the first step portion 51 and higher than the first step portion 51. A protruding portion 53 is disposed on both sides of the second step portion 52. The first step portion 51 and the second step portion 52 are provided with a through hole 54 through which the soldering portion 25 of the conductive terminal 2 is bored.

The assembly steps of the terminal and the first and second positioning plates are described below. Referring to FIG. 5 , in the first step, the first conductive terminals 21 are assembled from the rear of the base 10 and arranged in the positioning groove 121 provided in the positioning portion 12 . At this time, the contact portion of the first conductive terminal 21 is arranged on the upper surface of the abutting portion 11, the vertical portion 261a is located on the rear side of the base portion 10, and the welded portion 25a is horizontally disposed on the same plane as the horizontal portion 262a. The fastening block 42 is inserted into the fastening groove 14 provided on the inner side surface of the support portion 13 from the rear of the insulative housing 1 to assemble the first positioning plate 4 into the insulative housing 1. The upper surface of the first positioning plate 4 abuts against the lower surface of the horizontal portion 262a of the first conductive terminal 21.

In the second step, the second conductive terminal 22 is assembled from the rear of the base 10 and disposed in the positioning groove 41 provided on the lower surface of the first positioning plate 4. At this time, the contact of the second conductive terminal 22 The portion is located on the lower surface of the tongue plate 11, the vertical portion 261b is located behind the vertical portion 261a of the first conductive terminal 21, the horizontal portion 262b is located below the horizontal portion 262a of the first conductive terminal 21, and the welded portion 25b is vertically displaced forward and backward. status. Since the first positioning plate 4 is disposed between the second conductive terminal 22 and the first conductive terminal 21, signal crosstalk between the first and second conductive terminals can be effectively reduced.

Next, referring to the sixth figure, in the third step, the welded portion 25a of the first conductive terminal 21 is bent into a vertical state in which the front and rear portions are staggered, and the welded portion 25a is located behind the welded portion 25b of the second conductive terminal 22.

Referring to the seventh step, in the fourth step, the through holes 54 provided on the second positioning plate 5 are assembled corresponding to the soldering portions 25 of the conductive terminals, and are arranged on the support by the protruding portions 53 provided on the second positioning plate 5. The inner side of the portion 13 is provided in the holding groove 14. At this time, the protruding portion 53 is located behind the holding block 42 , and the positioning portion 12 and the first positioning plate 4 are located in front of the second step portion 52 of the second positioning plate 5 . The lower surface 55 of the second positioning plate 5 is higher than the circuit board mounting surface 131 and located above the contact portion 24a of the first conductive terminal 21. The soldering portion 25a of the first conductive terminal 21 is disposed in the through hole 54 provided in the second step portion 52, and the soldering portion 25b of the second conductive terminal 22 is disposed in the through hole 54 provided in the first step portion 51. Thus, the conductive terminal welding portion 25 is held at a corresponding position to prevent the respective welded portions from coming into contact while preventing the welded portion 25 from being deformed due to excessive length.

The circuit board mounting surface 131 is not lower than the upper surface of the abutting portion 11. Since the circuit board mounting surface 131 is at least flush with the upper surface of the abutting portion 11, the electrical connector 100 can be mounted on the circuit board 6 in a sinking manner, and the horizontal portions 262 of the first and second conductive terminals are higher than the circuit board. The mounting surface 131 has no contact portion 24 higher than the board mounting surface 131.

Finally, referring to the eighth figure, the shield case 3 is assembled to the insulative housing 1 from the front to the rear.

In summary, the creation meets the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the foregoing embodiments, and any equivalent modification or change made by a person familiar with the skill of the present invention in accordance with the spirit of the present invention is It should be covered by the following patent application.

131‧‧‧Board mounting surface

25a, 25b‧‧‧ welding department

5‧‧‧Second positioning plate

51‧‧‧First Step

52‧‧‧second step

Claims (10)

An electrical connector for soldering to a circuit board, comprising: an insulative housing comprising a base portion, an abutting portion extending forward from the base portion, and a positioning portion extending rearward, the lower surface of the positioning portion being provided with a positioning The conductive terminal includes a first conductive terminal and a second conductive terminal, and each of the conductive terminals includes a fixing portion fixed to the base, a contact portion extending from the fixing portion to the abutting portion, a vertical welding portion, and a connection fixing An intermediate portion of the portion and the welded portion, the intermediate portion includes a vertical portion and a horizontal portion, the first positioning plate, the lower surface of the first positioning plate is provided with a positioning groove, and the horizontal portion of the first conductive terminal is arranged at a positioning portion of the positioning portion, the horizontal portion of the second conductive terminal is arranged in the positioning groove of the first positioning plate; wherein the positioning portion has a supporting portion on both sides thereof, the supporting portion has a circuit board mounting surface, The support portion is provided with a fastening groove on the opposite inner side surface, and the first positioning plate is provided with a fastening block on both sides thereof, and the fastening block is assembled in the fastening groove from the rear, and the first positioning plate is located at the first Conductive terminal and second conductive Child between. The electrical connector of claim 1, wherein the fixing portions of the second conductive terminals are alternately arranged in an up-and-down position. The electrical connector of claim 2, wherein the abutting portion is a tongue plate structure, a contact portion of the first conductive terminal is located on an upper surface of the tongue plate, and a contact portion of the second conductive terminal is located at the tongue plate The lower surface, the horizontal portion of the first and second conductive terminals is higher than the circuit board mounting surface, and the contact portion is not higher than the circuit board mounting surface. The electrical connector of claim 3, wherein the electrical connector further comprises a second positioning plate, the second positioning plate is provided with protrusions at both ends, and the protrusion is assembled from the bottom to the buckle The slot is located behind the latching block and the second mounting plate is higher than the mounting surface of the circuit board. The electrical connector of claim 4, wherein the second positioning plate is arranged in a stepped manner, the second positioning plate comprises a first step portion and a second step portion, wherein the second step portion is located After the part and the first positioning plate. An assembly method of an electrical connector, wherein the assembling step comprises: Step 1: providing an insulating body, the insulating body has a positioning portion, a positioning groove is disposed on a lower surface of the positioning portion, and a supporting portion is disposed on both sides of the positioning portion The supporting portion is provided with a fastening groove on the opposite inner side surface; in step 2, the first conductive terminal is provided, and the first conductive terminal is assembled from the rear of the insulating body and arranged in the positioning groove of the lower surface of the positioning portion. The welding portion of the first conductive terminal is horizontally disposed. Step 3: providing a first positioning plate, the lower surface of the first positioning plate is provided with a positioning groove, and the two sides are provided with a fastening block, and the fastening block of the first positioning plate is The first positioning plate is located below the first conductive terminal from the rear of the first positioning plate, and the second conductive terminal is disposed at the first positioning. In the positioning groove of the lower surface of the plate, at this time, the welded portion of the second conductive terminal is vertically arranged in a front-rear direction; in step 5, the welded portion of the first conductive terminal is bent from a horizontal state into a vertical shape which is staggered back and forth. And the soldering portion is located behind the soldering portion of the second conductive terminal; and step 6, providing a second positioning plate, wherein the second positioning plate is provided with a plurality of perforations corresponding to the first and second conductive terminal soldering portions And the welding portion of the second positioning plate corresponding to the first and second conductive terminals is mounted upward on the insulating body. The method of assembling the electrical connector according to claim 6, wherein the second positioning plate is provided with a protruding portion on both sides thereof, and the protruding portion interferes with the supporting groove provided in the supporting portion and is located in the holding Behind the block. The method of assembling the electrical connector of claim 7, wherein the first and second conductive terminals comprise a fixing portion fixed to the insulating body and an intermediate portion between the connecting fixing portion and the soldering portion. The intermediate portion includes a vertical portion and a horizontal portion, and the fixed portions of the second conductive terminals are alternately arranged in an up-and-down position. The method of assembling the electrical connector of claim 8, wherein the insulative housing has an abutting portion, the abutting portion is a tongue plate structure, and the supporting portion has a circuit board mounting surface, the first The second conductive terminals respectively have contact portions, the contact portions of the first conductive terminals are located on the upper surface of the tongue plate, the contact portions of the second conductive terminals are located on the lower surface of the tongue plate, and the levels of the first and second conductive terminals are The portion is higher than the mounting surface of the circuit board, and the contact portion is not higher than the mounting surface of the circuit board, and the second fixed plate is higher than the mounting surface of the circuit board. The method of assembling the electrical connector of claim 9, wherein the second positioning plate is arranged in a stepped manner, the second positioning plate comprises a first step portion and a second step portion, the second step The portion is located behind the positioning portion and the first positioning plate.