TWI483481B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an assembly position of a mounting terminal set of an electrical connector.

The RJ45 electrical connector currently in use is generally used for mounting on an external circuit board such as a computer motherboard. However, the thickness of the board of different computer motherboards is different, or the thickness of the board needs to be reduced because of the need to reduce the thickness of the computer. If the RJ45 connector mounted on the board is in the piercing welding mode, it is necessary to reduce the length of the foot of the mounting foot from the bottom of the RJ45 electrical connector. In conventional designs, in order to cope with such changes, it is often used to cut short legs to accommodate boards of different thicknesses. However, the cutting of the foot length requires the development of new mold fixtures, and there are many hidden dangers: damage plating, installation of skewed legs, increased working hours and so on.

The technical problem to be solved by this creation is to provide an electrical connector that can provide different mounting foot lengths by different assemblies.

In order to solve the above problems, the present invention provides an electrical connector having a bottom surface for mounting on an external circuit board, the electrical connector including an insulative housing, a terminal set mounted on the insulative housing, the terminal set including a plurality of mounting terminals, The terminal set is mounted at a first height position from the bottom surface, the mounting terminal has a first length extending downward beyond the bottom surface, and the terminal set is further mountable at a second height position from the bottom surface, the mounting terminal Having a second length extending downward beyond the bottom surface, the second length Less than the first length.

The present invention provides a different mounting leg length from the bottom surface by assembling the terminal sets at different heights of the insulative housing. Compared with the prior art, this creation does not require the development of new jigs because it does not need to cut the terminal pins, which reduces the production cost and saves man-hours. In addition, it also avoids the damage of the plating layer when the terminal pin is cut and the hidden trouble of the terminal pin.

1‧‧‧Insulating body

2‧‧‧ docking terminal

10‧‧‧ bottom

3‧‧‧Circuit board

100‧‧‧Electrical connector

31‧‧‧First through hole

11‧‧‧ front wall

32‧‧‧Second through hole

111‧‧‧ accommodating space

33‧‧‧First conductive sheet

12‧‧‧ Back wall

34‧‧‧Second conductive sheet

121‧‧‧Positioning column

4‧‧‧Terminal group

122‧‧‧Terminal slot

41‧‧‧Installation terminal

13‧‧‧ Back wall

42‧‧‧ terminal block

14‧‧‧Extended wall

421‧‧‧ Groove

141‧‧‧First rib

5‧‧‧ rear mask housing

142‧‧‧second rib

6‧‧‧ front mask housing

143‧‧‧Abutment

144‧‧‧ positioning block

The first figure is a perspective view of an electrical connector in accordance with the present invention.

The second figure is an exploded view of the electrical connector shown in the first figure.

The third figure is an exploded view of another perspective view of the electrical connector shown in the first figure.

The fourth figure is an exploded view of the terminal set of the electrical connector shown in the first figure mounted on the first rib.

The fifth figure is an exploded view of the terminal set of the electrical connector shown in the third figure mounted on the second rib.

Figure 6 is a cross-sectional view of the electrical connector shown in Figure 4 after assembly.

Figure 7 is a cross-sectional view of the electrical connector shown in Figure 5 after assembly.

Referring to FIG. 1 to FIG. 3 together, an electrical connector 100 conforming to the present invention is disclosed for mounting on an external circuit board (not shown). The electrical connector 100 includes an insulative housing 1 and is mounted on The circuit board 3 of the insulative housing 1 is soldered to the mating terminal 2 at the upper end of the circuit board 3, the terminal set 4 soldered to the bottom end of the circuit board, and the rear cover housing 5 and the front shroud housing 6 of the insulative housing.

The electrical connector 100 has a bottom surface 10 for mounting to an external circuit board. Said absolutely The rim body 1 has a front wall 11, a rear wall 12, and an extension wall 14 extending rearward from the rear wall 12. The bottom of the extension wall 14 is provided with a first rib 141 at a first height position from the bottom surface 10 and a second rib 142 at a second height position. The second rib 142 is parallel to the first rib 141, and the second rib 142 is higher than the first rib 141 in the height direction from the bottom surface 10. The extension wall 14 is further provided with an abutting portion 143 connecting the first rib 141 and the second rib 142 to the rear wall 12, and a positioning block 144 at the upper end of the abutting portion 143. The rear wall 12 is convexly provided with two positioning posts 121 at the top of the rear wall 12, and terminal slots 122 between the two positioning posts 121. The front wall 11 is recessed inwardly to form a receiving space 111 for receiving a mating connector (not shown), and the mating terminal 2 is inserted into the receiving space 111 from the terminal slot 122 forward. The terminal set 4 can be selectively assembled to the first rib 141 or the second rib 142 on the extension wall 14.

The mating terminal 2, the circuit board 3, and the terminal group 4, the magnetic coil (not labeled) and the like constitute an adapter terminal module. A docking connector (not shown) is connected to the docking terminal 2, and the docking terminal 2 is electrically connected to the terminal group 4 via the circuit board 3, and the terminal group 4 is connected to an external circuit board (not shown). The docking terminal 2 is connected to the upper end of the circuit board 3, the circuit board 3 is mounted between the positioning block 144 and the rear wall 12, and the terminal group 4 is mounted at the lower end of the circuit board 3. The terminal set 4 includes a mounting terminal 41 and a terminal block 42 for holding the mounting terminal 41. The terminal block 42 is provided with a recess 421, and the recess 421 is selectively assembled to the first rib 141 or the second rib 142. . The upper end of the circuit board 3 is provided with two first through holes 31 at the outer edge of the circuit board 3 and two second through holes 32 on the lower side of the first through hole 31. The respective positioning posts 121 can be selectively inserted. The first through hole 31 or the second through hole 32. The circuit board 3 further has a row of first conductive sheets 33 and a row of second conductive sheets 34 between the first through holes 31 and the second through holes 32, and the second conductive sheets 34 are located on the first conductive sheets 33 underside. The docking terminal 2 can be connected to the first conductive sheet 33 or the second conductive sheet 34.

Please refer to the fourth and sixth figures together for the first state in which the mounting terminal 41 extends out of the bottom surface 10. The terminal block 42 is mounted on the first rib 141, the terminal block 42 abuts against the abutting portion 143, the positioning post 121 is inserted into the first through hole 31, and the mating terminal 2 is connected to the first conductive The sheet 33 has the first terminal length L1 extending beyond the bottom surface 10.

Please refer to the fifth and seventh figures together for the second state in which the mounting terminal 41 protrudes from the bottom surface 10. Compared with the first state, the circuit board 3 and the terminal group 4 move upward at the same time, and the docking terminal 2 remains in the original position. The terminal block 42 is mounted on the second rib 142 , the positioning post 121 is inserted into the second through hole 32 , the docking terminal 2 is connected to the second conductive sheet 34 , and the mounting terminal 41 has an extension beyond the bottom surface 10 . The second length L2. The second length L2 is smaller than the first length L1.

The present invention is assembled at different heights of the insulative housing 1 by the terminal set 4, providing a different mounting foot length from the bottom surface 10. Compared with the prior art, this creation does not require the development of new jigs because it does not need to cut the terminal pins, which reduces the production cost and saves man-hours. In addition, it also avoids the damage of the plating layer when the terminal pin is cut and the hidden trouble of the terminal pin.

121‧‧‧Positioning column

32‧‧‧Second through hole

5‧‧‧ rear mask housing

6‧‧‧ front mask housing

Claims (10)

An electrical connector has a bottom surface for mounting on an external circuit board, and an insulating body having a bottom wall having a bottom surface, a top wall disposed opposite the bottom wall, and a top wall and a bottom wall a front wall, a rear wall opposite to the front wall, and a receiving space formed by recessing from the front wall; the terminal set, the terminal set is mounted on the insulating body and includes a plurality of mounting terminals; the circuit board is vertically disposed behind The upper end of the circuit board has an upper conductive connection area and a second conductive connection area under the first conductive connection area The utility model has a mounting portion close to the top wall, an abutting portion extending downward and rearward from the mounting portion, and a connecting portion extending rearward from the mounting portion to the upper end of the circuit board; the terminal group is mounted at a first height position from the bottom surface Wherein the connection portion of the docking terminal is connected to the first conductive region, the mounting terminal has a first length extending downward beyond the bottom surface, wherein the terminal group is further The circuit board is moved upward at a second height position from the bottom surface, the connecting portion of the mating terminal is connected to the second conductive region, and the mounting terminal has a second length extending downward beyond the bottom surface, the second The length is less than the first length. The electrical connector of claim 1, wherein the insulative housing is provided with an extension wall extending rearward from the rear wall, the extension wall being provided with a first mating portion at a first height position and at a second The second mating portion of the height position, the terminal set may be selectively assembled to the first mating portion or the second mating portion. The electrical connector of claim 2, wherein the terminal set further comprises a terminal block holding the mounting terminal, the terminal block is provided with a groove, and the first mating portion is a first rib, The second mating portion is a second rib, and the groove may be selectively assembled to the first rib or the second rib. The electrical connector of claim 3, wherein the first rib is parallel to the second rib, and the extension wall is further provided with an abutting portion of the terminal seat abutting forward, the affixing The base is connected to the first rib and the second rib. The electrical connector of claim 4, wherein the terminal set is mounted on a lower end of the circuit board, the circuit board end is provided with a first through hole and a second through hole under the first through hole, The rear wall is convexly provided with a positioning post, and the positioning post can be selectively inserted into the first through hole or the second through hole. The electrical connector of claim 5, wherein the first conductive region is a first conductive sheet and the second conductive region is a second conductive sheet. The electrical connector of claim 6, wherein when the terminal block is mounted on the first rib, the positioning post is inserted into the first through hole, and the butt terminal is connected to the first conductive piece. The mounting terminal has a first length that extends beyond the bottom surface. The electrical connector of claim 6, wherein when the terminal block is mounted on the second rib, the positioning post is inserted into the second through hole, and the butt terminal is connected to the second conductive piece. The mounting terminal has a second length that extends beyond the bottom surface. The electrical connector of claim 5, wherein the extension wall is provided with a positioning block, and the circuit board is mounted between the positioning block and the rear wall. The electrical connector of claim 1, wherein the electrical connector is further provided with a shielding housing covering the insulative housing.