CN101908683B - Electric connector and assembly method thereof - Google Patents

Abstract

The invention provides an electrical connector and its assembly method. The electrical connector includes an insulating body and a terminal module installed in the insulating body. Terminals and a number of electronic components, the docking terminal is set at one end of the built-in circuit board, the electronic components include a number of magnetic coils, resistance and in-line capacitors, the exclusion is set on the side of the built-in circuit board with the docking terminal, and the magnetic coil is set on On the other end of the built-in circuit board, the in-line capacitor is set between the docking terminal and the magnetic coil. Part of the electronic components of the terminal module of the invention and the built-in circuit board are welded by surface welding, and some are welded on the circuit board by through-hole reflow soldering, which is convenient for assembly, saves man-hours, and saves space inside the electrical connector. , and the assembly method of the electrical connector is convenient to realize the automatic production of the electrical connector, which saves the cost.

Description

Electrical connector and assembly method thereof

【Technical field】

The invention relates to an electrical connector, in particular to a terminal module structure of the electrical connector and an assembly method of the electrical connector.

【Background technique】

Refer to China Patent Announcement No. CN2384333Y. This patent provides an electrical connector, which includes a terminal module with an insulating body installed in the insulating body. Docking terminals, several electronic components and several transfer terminals arranged on both sides of the built-in circuit board. The built-in circuit board is accommodated at the rear of the insulating body perpendicular to the mating direction of the butt terminal and the butt connector. This kind of electrical connector is suitable for high-frequency network interface, and the arrangement of this kind of connector can save space and facilitate assembly, but when a higher-frequency network interface connector is required, this kind of arrangement cannot increase more There are many electronic components. When adding electronic components, it is necessary to increase the internal space of the electrical connector, and it is not convenient for automatic welding of each electronic component in the electrical connector.

【Content of invention】

The object of the present invention is to provide an electrical connector which is easy to assemble, saves man-hours and saves space inside the electrical connector.

The purpose of the present invention is achieved through the following technical solutions: an electrical connector, which includes an insulating body and a terminal module installed in the insulating body, the terminal module further includes a built-in circuit board, and a terminal module arranged on the built-in circuit board A number of docking terminals and a number of electronic components. The docking terminals are arranged at one end of the built-in circuit board. The electronic components include several magnetic coils, resistors and in-line capacitors. The resistors are arranged on the side of the built-in circuit board with the docking terminals. The magnetic coils It is arranged at the other end of the built-in circuit board, and the in-line capacitor is arranged between the butt terminal and the magnetic coil.

Compared with the prior art, the electric connector of the present invention adopts the surface welding method for the welding between some electronic components of the terminal module and the built-in circuit board, and partly uses the through-hole reflow welding method to weld the circuit board on the circuit board, which is convenient for assembly. It saves man-hours and facilitates saving the space inside the electrical connector.

The purpose of the present invention is also to provide an assembly method of an electrical connector, which is simple in assembly and facilitates automatic welding of electronic components in the electrical connector.

The object of the present invention is achieved through the following technical solutions: a method for assembling an electrical connector, which includes the following steps:

1) Provide an insulating body, which can be used for a mating connector to be inserted and mated from front to back;

2) Provide a circuit board, the circuit board is provided with a number of electronic components and a number of conductive sheets, the conductive sheets are arranged in two parallel rows;

3) providing several magnetic coils, and welding the magnetic coils on the aforementioned conductive sheet;

4) Provide a plug-in capacitor and solder the capacitor to the aforementioned circuit board;

5) providing a number of docking terminals and installing them on the aforementioned circuit board to form a terminal module;

6) The terminal module is assembled into the insulating body. At this time, the circuit board is parallel to the horizontal direction, and the arrangement direction of the aforementioned two rows of conductive sheets is vertically placed in the front-to-back direction, and the docking terminal can be matched with the docking connector.

Compared with the prior art, in the assembly process of the electrical connector of the present invention, part of the electronic components are surface-welded on the built-in circuit board first, then the built-in circuit board is loaded into the insulating body, and finally the transfer terminal is surface-welded on the built-in circuit board. on the conductive sheet of the circuit board. The welding method and structure of the electronic components on the built-in circuit board are convenient for automatic welding production of electric connectors, thereby reducing the man-hours spent on assembly and saving costs.

【Description of drawings】

FIG. 1 is a perspective view of an electrical connector according to the present invention assembled to an external circuit board.

FIG. 2 is a partially exploded view of the electrical connector shown in FIG. 1 .

FIG. 3 is an exploded exploded view of the electrical connector shown in FIG. 2 .

FIG. 4 is another perspective view of the exploded exploded view of the electrical connector shown in FIG. 3 .

FIG. 5 is a cross-sectional view of the electrical connector shown in FIG. 1 .

【Detailed ways】

As shown in FIGS. 1 to 5 , an electrical connector 100 according to the present invention is disclosed. The electrical connector 100 is used for mounting on an external circuit board 200 , and the electrical connector is a 10-1000-based network connector. The electrical connector 100 includes an insulating body 1 , a terminal module 3 installed in the insulating body 1 , a plurality of transfer terminals 5 , an indicating device 9 and a shielding case 7 covering the insulating body 1 .

The insulating body 1 is provided with a docking space 11 for mating connectors (not shown) to be inserted from front to back, a receiving cavity 13 connected to the docking space 11 , and a receiving space 17 disposed below the docking space 11 . This insulating housing 1 is also provided with a front end face 12 for mating connectors (not shown) to be inserted and matched, and a rear end face 14 opposite to the front end face 12, a top face 16 connecting the front end face 12 and the rear end face 14, and The mounting surface 15 opposite to the surface 16 is used for mounting the electrical connector 100 to an external circuit board 200 . The front end surface 12 is recessed with a groove 121 for accommodating the indicating device 9 near the top surface 16 toward the rear end surface 14 , and the rear end surface 14 is recessed with a plurality of receiving grooves 141 near the mounting surface 15 . An opening 151 is recessed on the installation surface 15 at a position below the receiving cavity 13 and close to the docking space 11 . The installation surface 15 is also recessed with a plurality of terminal grooves 153 , and the terminal grooves 153 are communicated with the opening 151 and located in the middle of the installation surface 15 .

The terminal module 3 includes a built-in circuit board 31 , a number of docking terminals 33 disposed on the built-in circuit board 31 and a number of electronic components (not labeled). The electronic components further include a number of magnetic coils 35, a resistance 37, an in-line capacitor 39 and a number of chip capacitors 38. The number of magnetic coils 35 includes four sets of magnetic coils, and each set of coils includes a transformer (not labeled) and a common mode Suppressor coils (not numbered) to provide filtering of a signal path.

The built-in circuit board 31 has a first side 311 and a second side 313 oppositely disposed, wherein the first side 311 is disposed facing the external circuit board 200, and the first side 311 and the second side 313 have oppositely disposed first ends 315a, 313, respectively. 315b and the second end 317a, 317b. Each connecting terminal 33 has a first welding portion 331 , a bending portion 333 formed by bending the first welding portion 331 , and a connecting portion 335 extending from the bending portion 333 . The first welding portion 331 of the butt terminal 33 is surface-welded to the first end 315a of the first side 311 of the built-in circuit board 31 , the butt joint 335 extends above the second side 313 , and the bent portion 333 is located at the first end 315a of the built-in circuit board 31 . end of one end 315a. The exclusion resistor 37 is surface welded to the first end 315 b of the second side surface 313 of the built-in circuit board 31 , and is located on a side of the docking portion 335 of the docking terminal 33 . The magnetic coil 35 is surface soldered to the second end 317b of the second side 313 of the built-in circuit board 31 , and the in-line capacitor 39 is soldered between the butt terminal 33 and the magnetic coil 35 by through-hole reflow soldering. The chip capacitor 38 is surface-welded on the second end 317 a of the first side 311 of the built-in circuit board 31 . The first side 311 of the built-in circuit board 31 is provided with a plurality of first conductive sheets 321 between the chip capacitor 38 and the first welding part 331 of the butt terminal 33, and the first welding of the first conductive sheet 321 and the butt terminal 33 There is also a second conductive sheet 323 between the parts 331, and a number of third conductive sheets (not numbered) arranged in two parallel rows are arranged on the second side. These third conductive sheets are arranged in two parallel rows, and the two The arrangement direction of the conductive fins is vertical to the front and rear directions.

The second end 317a, 317b of the built-in circuit board 31 and the magnetic coil 35 welded to the second end 317a, 317b, the in-line capacitor 39 and the chip capacitor 38 are accommodated in the accommodation cavity 13 of the insulating body 1; The first ends 315a, 315b of the circuit board 31, the first soldering portion 331 of the butt joint 33 and the resistance 37 are accommodated in the receiving space 17, and the butt joint 335 of the butt joint 33 is extended and accommodated in the docking space 11 for docking with A connector (not shown) is matingly connected. The first conductive sheet 321 and the second conductive sheet 323 on the first side 311 of the built-in circuit board 31 are exposed in the opening 151 of the insulating body 1. Soldering jigs provide plenty of pick and place space.

The transfer terminal 5 is provided with a board mounting portion 51 and a second soldering portion 53 perpendicular to the board mounting portion 51 . The board mounting portion 51 is used to be welded into the conductive through hole (not shown) of the external circuit board 200, and the second soldering portion 53 is inserted into the terminal groove 153 of the insulating body 1 from a direction perpendicular to the mounting surface 15 and surface-welded On the first conductive sheet 321 of the built-in circuit board 31 , the electrical connector 100 is electrically connected with the external circuit board 200 .

The indicator device 9 is provided with an indicator light 91 and a terminal pin 93 connected to the indicator light.

The shielding housing 7 includes a front housing 71 and a rear housing 73. The front housing 71 is provided with opposite side walls 711, wherein the side wall 711 is bent and extended to have an extension piece 713, and the surface of the extension piece 713 is welded to the built-in On the second conductive sheet 323 of the circuit board 31 to achieve the effect of grounding.

The installation method of the terminal module 3 of the electrical connector 100 is convenient to save the space inside the electrical connector 100. The welding between some electronic components and the built-in circuit board 31 adopts the surface welding method, and part adopts the through-hole reflow soldering method to weld on the electrical connector 100. On the circuit board, it is easy to assemble and save man-hours.

When assembling the electrical connector 100, the surface of the resistor 37 is first welded to the first end 317a of the second side 313 of the built-in circuit board 31, and then the chip capacitor 38 is surface-welded to the first end 317a of the first side 311 of the built-in circuit board 31. Two ends 315b, and then the surface of the magnetic coil 35 is welded on the third conductive sheet of the second side 313 of the built-in circuit board 31, the magnetic coils 35 are located at the second end 317b, and the in-line capacitor 39 is installed on the built-in circuit board 31 On the second side 313, the surface of the butt joint terminal 33 is welded to the first end of the built-in circuit board 31 to form the terminal module 3. At this time, the first welding portion 331 of the butt joint terminal 33 is located on the first side 311 of the built-in circuit board 31. The docking portion 335 extends above the first end 317a of the second side 313 , the in-line capacitor 39 is located between the docking portion 335 and the magnetic coil 35 , and the exclusion resistor 37 is located on the side of the docking portion 335 .

Then the transfer terminal 5 is pressed into the terminal groove 153 from the bottom of the insulating body 1, and then the terminal module 3 is loaded into the insulating body 1, and then the second welding part 51 of the transfer terminal 5 and the built-in circuit board 31 are connected. The first conductive sheet 321 is welded, and at this time, the transfer terminals 5 are located at positions corresponding to the first side 311 between the two rows of third conductive sheets. At this time, part of the built-in circuit board 31 of the terminal module 3 and the docking terminals 33 and the resistors 37 arranged on the built-in circuit board 31 are accommodated in the docking space 11, and part of the built-in circuit board 31 is arranged on the built-in circuit board 31. The magnetic coil 35 and the in-line capacitor 39 are accommodated in the accommodation cavity 13 .

Then put the indicating device 9 from the groove 121 of the front end surface 12 of the insulating body 1. At this time, the indicator light 91 is completely accommodated in the groove 121, and the terminal pin 93 extends to the rear end surface 14. Then, after the terminal pin 93 is bent Its end (not numbered) is accommodated in the accommodation groove 141 .

Finally, the shielding case 7 is mounted on the outside of the insulating body 1 , and then the extension piece 713 of the shielding case 7 is welded to the second conductive piece 323 of the built-in circuit board 31 .

During the assembly process of the electrical connector 100 of the present invention, part of the electronic components are surface-welded on the built-in circuit board 31 first, then the built-in circuit board 31 is loaded into the insulating body 1, and finally the transfer terminal 5 is surface-welded to the built-in circuit board 31 on the first conductive sheet 321. The insulating body 1 is concavely provided with an opening 151 on its mounting surface 15. The opening 151 provides a certain space for automatic welding, that is, it provides a pick-and-place space for an automatic welding machine, which is convenient for the automatic welding production of the electrical connector 100, thereby reducing The man-hours spent on assembly are reduced, and the cost is saved.

Claims (9)

1. electric connector; It comprises insulating body and is installed in the terminal module in the insulating body; The terminal module further comprises internal circuit board, is arranged at some butt joint terminals and some electronic components on the internal circuit board; Said butt joint terminal is arranged at an end of internal circuit board, and electronic component comprises plurality of magnetic property coil, exclusion and direct insertion electric capacity, it is characterized in that: said exclusion is arranged at the side that internal circuit board is provided with the butt joint terminal; Magnetic coil is arranged at the other end of internal circuit board, and direct insertion electric capacity then is arranged between butt joint terminal and the magnetic coil.

2. electric connector as claimed in claim 1; It is characterized in that: said electric connector is used to be mounted to a external circuit board; Said internal circuit board is parallel to the external circuit board setting; This internal circuit board is provided with first side and second side of opposite setting, and wherein first side is to the external circuit board setting, and said each magnetic coil, exclusion and electric capacity all are welded in second side of internal circuit board.

3. electric connector as claimed in claim 2; It is characterized in that: said butt joint terminal is provided with weld part, the kink that is bent to form by an end of weld part and the docking section that is further extended to form by kink; The weld part surface soldered of butt joint terminal is in first side of internal circuit board; The docking section lies along the top of second side, and said exclusion surface soldered is in the side of docking section.

4. electric connector as claimed in claim 2; It is characterized in that: first side of said internal circuit board is provided with plurality of conducting strips; Insulating body is provided with the installed surface that is mounted to the external circuit board; This installed surface is concaved with the plurality of terminals groove in the centre position, said electric connector also is provided with the plurality of adapter coupling terminal, and these conversion terminals are contained in the interior also surface soldered of terminal groove in said conducting strip.

5. electric connector as claimed in claim 4; It is characterized in that: said installed surface also is concaved with an opening; Said built-in circuit plate portion exposes in the opening, and the part that this internal circuit board is exposed opening is provided with second conducting strip, and said electric connector also is provided with and is coated on the outside shielding casing of insulating body; This shielding casing extension is provided with an Extendible flake, and said Extendible flake surface soldered is in second conducting strip.

6. the assemble method of an electric connector, it may further comprise the steps:

1) insulating body is provided, can supplies a butt connector to insert cooperation from front to back;

2) circuit board is provided, this circuit board has first end and second end of opposite setting, and this circuit board second end is provided with plurality of conducting strips, and said conducting strip is two parallel rows and arranges;

3) exclusion is provided, exclusion is welded in circuit board first end;

4) some magnetic coils are provided, said magnetic coil is welded on the conducting strip;

5) a direct insertion electric capacity is provided, direct insertion electric capacity is installed on the circuit board;

6) some butt joint terminals are provided, thereby the side that said butt joint terminal is welded in exclusion is formed the terminal module, wherein direct insertion electric capacity is between butt joint terminal and magnetic coil;

7) with the said terminal module insulating body of packing into, this moment, circuit board was parallel to horizontal direction, and aforementioned two row's conducting strip orientations hang down and place fore-and-aft direction, and said butt joint terminal can cooperate with butt connector.

7. the assemble method of electric connector as claimed in claim 6, it is characterized in that: said circuit board has the first opposite side and second side, and said exclusion, electric capacity and magnetic coil are installed on second side, and the butt joint terminal is installed on first side.

8. the assemble method of electric connector as claimed in claim 7; It is characterized in that: also comprise step 8); The plurality of adapter coupling terminal is provided, these conversion terminals is welded on the circuit board, these conversion terminals and two row conducting strips between corresponding position in first side.

9. the assemble method of electric connector as claimed in claim 7; It is characterized in that: said electric connector is a network connector; Some magnetic coils comprise four groups of magnetic coils, and every group of coil includes a transformer and a common mode choke coil, in order to the filtering of a signalling channel to be provided.

Images