CN209298476U - electrical connector - Google Patents

Abstract

The utility model provides an electrical connector, comprising an insulating body and a terminal module fixed on the insulating body, the insulating body is provided with a docking part carrying the terminal module, and the terminal module includes The upper row of terminal groups on the side and the lower row of terminal groups distributed on the lower side of the docking part, a metal isolation plate is provided between the upper row of terminal groups and the lower row of terminal groups, and a contact arm is provided on the metal isolation plate; the contact The arms protrude toward the upper terminal group or the lower terminal group, and are located on the same plane as the remaining terminals in the upper terminal group or the lower terminal group. Compared with the prior art, the utility model integrally forms the contact arm on the metal isolation plate, and arranges the contact arm on both sides of the terminal group to act as a grounding terminal. It has an integrated structure with the metal isolation plate and can Effectively eliminate the problems of poor contact and difficult assembly, and the grounding effect is better and more stable, which can improve the quality of signal transmission.

Description

electrical connector

technical field

The utility model relates to the technical field of electric connection, in particular to an electric connector.

Background technique

Electrical connectors are widely used in digital products such as computers and mobile phones, such as USB connectors, SATA connectors, etc. As signal transfer components, electrical connectors play a key role in the entire electrical connection system, and directly affect Stability and reliability of electrical connection. In order to improve signal transmission quality, existing electrical connectors are required to meet higher grounding requirements to avoid interference between signals. For example, some electrical connectors are equipped with double rows of conductive terminals. In order to avoid mutual Interference, usually grounding terminals are set in the conductive terminals, and the miscellaneous signals are eliminated through the grounding terminals, but for electrical connectors with relatively dense conductive terminals and a large number, especially for electrical connectors for high-frequency signal transmission Said, this way still can't achieve the ideal grounding effect. As shown in Figure 1, in the prior art, a metal grounding sheet P is often provided between the two rows of terminal groups A and B, and a better grounding effect is achieved by lapping or buckling the grounding terminal G to the metal grounding sheet P , but this method requires that the grounding terminal G in the upper and lower row terminal groups should be lapped with the metal grounding sheet P respectively, and the circuit can only be formed after the three contact, which will increase the assembly procedure, and the lapping or buckling method is easy to produce contact The problem of instability and unreliability.

Therefore, it is necessary to provide a new electrical connector to solve the above technical problems.

Utility model content

The technical problem solved by the utility model is to provide an electrical connector to improve the problem of poor grounding effect in the prior art.

In order to solve the above technical problems, the utility model provides an electrical connector, which includes an insulating body and a terminal module fixed on the insulating body, the insulating body is provided with a docking part for carrying the terminal module, and the terminal module includes The upper row of terminal groups distributed on the upper side of the docking part and the lower row of terminal groups distributed on the lower side of the docking part, a metal isolation plate is provided between the upper row of terminal groups and the lower row of terminal groups, and a contact is provided on the metal isolation board. Arm; the contact arm protrudes toward the upper or lower row of terminal groups, and is located on the same plane as the remaining terminals in the upper or lower row of terminal groups.

Further, the upper terminal group and the lower terminal group are provided with ground terminals and signal terminals, and the length extension direction of the contact arm is the same as the length extension direction of the ground terminals and signal terminals.

Further, there are two contact arms, which protrude toward the upper row of terminal groups and are located on both sides of the upper row of terminal groups.

Further, the two outermost terminals in the lower row of terminals are grounding terminals, and the contact arm is arranged in a one-to-one correspondence with the two grounding terminals in the up-down direction.

Further, the number of terminals in the upper row of terminal groups is less than the number of terminals in the lower row of terminal groups.

Further, the contact arm is arranged side by side with the signal terminal and the ground terminal in the upper row of terminal groups, and the front end of the contact arm is flush with the front end of the ground terminal.

Further, the front ends of the contact arms and the ground terminals both extend forward beyond the front ends of the signal terminals located in the same row.

Further, the two outermost grounding terminals in the lower row of terminal groups are provided with overlapping portions bent and extending toward the metal isolation plate.

Further, the two side edges of the metal isolation plate are provided with convex edges that are in contact with the overlapping portion.

Compared with the prior art, the utility model integrally forms the contact arm on the metal isolation plate, and arranges the contact arm on both sides of the terminal group to act as a grounding terminal. It has an integrated structure with the metal isolation plate and can Effectively eliminate the problems of poor contact and difficult assembly, and the grounding effect is better and more stable, which can improve the quality of signal transmission.

Description of drawings

FIG. 1 is a schematic diagram of the connection between the upper and lower rows of terminal groups and the metal grounding plate in the prior art.

FIG. 2 is a perspective view of the electrical connector of the present invention.

FIG. 3 is an exploded view of the terminal module of the electrical connector of the present invention.

Detailed ways

Please refer to Fig. 2, the utility model provides an electrical connector, including an insulating body 10, a terminal module 20 fixed on the insulating body 10 and a housing 30 covering the periphery of the insulating body 10, the insulating body 10 is accommodated inside the casing 30, so that the terminal module 20 can be surrounded by the casing 30, and can transmit electrical signals reliably and stably, and the insulating body 10 has a docking portion 11 carrying the terminal module 20, The terminal module 20 is combined with the insulating body 10 and distributed on the upper and lower sides of the docking part 11, and one end of the terminal module 20 is used to electrically connect with the electrical connector at the docking end, and the other end extends backward. The insulating body 10 is welded to the circuit board, and the housing 30 is integrally formed by stamping, and has a mounting portion 31 welded to the circuit board.

As shown in FIG. 3 , the terminal module 20 includes an upper row of terminal groups 21 distributed on the upper side of the docking portion 11 and a lower row of terminal groups 22 distributed on the lower side of the docking portion 11, and the upper row of terminal groups 21 and A metal isolation plate 23 is also provided between the lower terminal groups 22, and the metal isolation plate 23 is embedded in the docking portion 11 of the insulating body 10, and is used for connecting the signals of the upper terminal group 21 and the lower terminal group 22. For isolation, wherein, the upper row of terminal groups 21 and the lower row of terminal groups 22 each include a number of signal terminals S and ground terminals G, and the ground terminals G are separated so that signals can be arranged between the ground terminals G. Terminal S, take the lower terminal group 22 as an example, the ground terminals G are distributed in the signal terminal S and both sides of the signal terminal S, and the two outermost terminals in the lower terminal group 22 are ground terminals G, The two ground terminals G have overlapping portions 24 bent and extended toward the metal isolation plate 23 to contact with the flanges 25 at the edges of both sides of the metal isolation plate 23, and the signal terminals located inside the two ground terminals G The ground terminal G is also distributed in the S, so that the spacing between the ground terminal G and the signal terminal S can effectively improve the quality of signal transmission.

It is worth mentioning that the two outermost terminals in the upper row of terminal groups 21 are signal terminals S, and the number of signal terminals S in the upper row of terminal groups 21 is the same as the number of signal terminals S in the lower row of terminal groups 22, However, the number of grounding terminals G of the upper row of terminal groups 21 is less than the number of grounding terminals G of the lower row of terminals. The grounding terminal G is arranged correspondingly. A pair of contact arms 26 are integrally formed on the metal isolation plate 23 of the present utility model. The contact arms 26 protrude upward and are located on both sides of the upper row terminal group 21, which is equivalent to the upper row The two outermost ground terminals G of the terminal group 21, that is to say, the two contact arms 26 are set in one-to-one correspondence with the two outermost ground terminals G in the lower row of terminal groups 22, since the contact arms 26 It is arranged as a protrusion, and it is located on the same plane as the signal terminal S and the ground terminal G of the terminal group 21 in the upper row. For plugging, and since the contact arm 26 itself is integrally formed on the metal isolating plate 23, the two outermost grounding terminals G in the lower terminal group 22 are overlapped with the metal isolating plate 23 by the overlapping portion 24. Grounding, in this way, there is no need to specially set the ground terminal G on the outermost side of the upper terminal group 21, and it also avoids its contact with the metal isolation plate 23 or the snap-fit contact with the outermost ground terminal G of the lower terminal group 22 , which simplifies the assembly process and improves the grounding effect, making signal transmission more stable and reliable. In addition, the contact arm 26 is arranged side by side with the signal terminal S and the ground terminal G in the upper terminal group 21, and the front end of the contact arm 26 is flush with the front end of the ground terminal G. The front ends of the terminals G all extend forward beyond the front ends of the signal terminals S located in the same row.

In the utility model, the contact arm 26 is integrally formed on the metal isolation plate 23, and the contact arm 26 is arranged on both sides of the upper terminal group 21 to act as the outermost grounding terminal G in the upper terminal group 21. The integrated structure with the metal isolation plate 23 can effectively eliminate the problems of poor contact and difficult assembly, and the grounding effect is better and more stable, which can improve the quality of signal transmission.

The above is only the preferred embodiment of the utility model, and is not intended to limit the utility model in any form. Any person familiar with the art can use the above disclosure without departing from the scope of the technical solutions of the utility model. Many possible changes and modifications are made to the technical solution of the utility model according to the content of the method, all of which belong to the protection scope of the claims.

Claims (9)

1. a kind of electric connector is equipped with including insulating body and the Terminals Die group being fixed on insulating body, the insulating body The docking section of Terminals Die group is carried, the Terminals Die group includes the upper row's terminal group being distributed on the upside of docking section and is distributed in docking Lower row's terminal group of subordinate side, which is characterized in that metal isolation board is equipped between upper row's terminal group and lower row's terminal group, and Metal isolation board is equipped with contact arm；The contact arm is protruded out towards upper row's terminal group or lower row's terminal group, and with it is upper Remaining terminal in row's terminal group or lower row's terminal group is generally aligned in the same plane.

2. electric connector according to claim 1, it is characterised in that: be all provided in upper row's terminal group and lower row's terminal group There are ground terminal and signal terminal, the length extending direction and the length of the ground terminal and signal terminal of the contact arm prolong It is identical to stretch direction.

3. electric connector according to claim 2, it is characterised in that: the contact arm is two, towards the upper row Terminal group protrudes out, and is located at the two sides of upper row's terminal group.

4. electric connector according to claim 3, it is characterised in that: two on the outermost side in lower row's terminal group For ground terminal, two ground terminals of the contact arm and this are in be arranged in a one-to-one correspondence in the up-down direction.

5. electric connector according to claim 4, it is characterised in that: the number of terminals of upper row's terminal group is less than lower row The number of terminals of terminal group.

6. electric connector according to claim 5, it is characterised in that: the letter in the contact arm and upper row's terminal group Number terminal, ground terminal are arranged side by side, and the front end of contact arm flushes setting with the front end of ground terminal.

7. electric connector according to claim 6, it is characterised in that: the contact arm, ground terminal front end forward Extend beyond the front end for being located at the signal terminal with row.

8. electric connector according to claim 7, it is characterised in that: two on the outermost side in lower row's terminal group Ground terminal is equipped with the clinch extended towards metal isolation board bending.

9. electric connector according to claim 8, it is characterised in that: the both sides of the edge of the metal isolation board are equipped with and institute State the chimb of clinch contact.