Electric connector

Abstract

An electric connector comprises a shell, a first terminal module and a first insulation block which fixes the first terminal module in the shell, the first terminal module comprises a plurality of first grounding terminals and first signal terminal pairs, and each first grounding terminal comprises a first elastic contact arm extending out of the first side of the first insulation block. The first signal terminal pair comprises a first main body part fixedly held on the first insulating block and second elastic contact arms extending out of the first side of the first insulating block from one end of the first main body part, the first elastic contact arms and the second elastic contact arms are alternately arranged in the longitudinal direction, and the plurality of first elastic contact arms are integrally connected to the lengthwise first substrate; the first substrate is located on one side of the first main body part in the transverse direction, the first substrate integrally extends to form a first shielding part which is spaced from the second elastic contact arm in the transverse direction, the first grounding terminal is integrally connected through a component, the second elastic contact arm of the first signal terminal pair is shielded, and the high-frequency performance of the electric connector is good.

Description

[Technical field]

[0001] The utility model relates to an electric connector, in particular to an electric connector with good high-frequency performance. [Background technology]

[0002] Chinese invention patent No. CN110867681B discloses an electrical connector, which includes two rows of conductive terminals, each row of conductive terminals includes a plurality of grounding terminals and a plurality of signal terminal pairs, the grounding terminals and the signal terminals are arranged alternately, a metal connector is provided with a plurality of abutting arms respectively abutting against the grounding terminals in each row of conductive terminals, and the grounding terminals in each row of conductive terminals are connected to the ground in series through the metal connector, thereby improving the high-frequency performance of the electrical connector. However, overlapping the grounding terminals through the metal connector will cause the thickness of the overlap to change, resulting in a sudden change in the impedance of the overlap, which is actually not conducive to the transmission of high-frequency signals of the electrical connector.

[0003] Therefore, it is necessary to provide an improved electrical connector to solve the above problems. [Contents of the utility model]

[0004] The main purpose of the utility model is to provide an electrical connector, which has good high-frequency performance.

[0005] To solve the above technical problems, the utility model can adopt the following technical solutions: an electrical connector, comprising a shell, a first terminal module and a first insulating block that fixes the first terminal module to the shell, the first terminal module comprising a plurality of first grounding terminals and a plurality of first signal terminal pairs arranged in the longitudinal direction, the first grounding terminal comprising a first elastic contact arm extending out of a first side of the first insulating block, the first signal terminal pair comprising a first main body portion fixed to the first insulating block and a second elastic contact arm extending out of the first side of the first insulating block from one end of the first main body portion, the first elastic contact arm of the first grounding terminal and the second elastic contact arm of the first signal terminal pair are alternately arranged in the longitudinal direction, the plurality of the first elastic contact arms are integrally connected to a first substrate extending in the longitudinal direction, the first substrate is located on one side of the first main body portion in a transverse direction perpendicular to the longitudinal direction, the first substrate is integrally extended to form a first shielding portion that is spaced apart from the second elastic contact arm in the transverse direction.

[0006] Furthermore, the first terminal module is injection molded on the first insulating block, the housing is provided with a first docking groove, the first insulating block is accommodated in the housing, and the first elastic contact arm and the second elastic contact arm extend into the first docking groove.

[0007] Furthermore, the first grounding terminal further includes a third elastic contact arm extending from the second side of the first insulating block, and the first signal terminal pair further includes a fourth elastic contact arm extending from the other end of the first main body to the second side of the first insulating block, the third elastic contact arm of the first grounding terminal and the fourth elastic contact arm of the first signal terminal pair are alternately arranged in the longitudinal direction, and a plurality of the third elastic contact arms are integrally connected to the first substrate, and the first substrate is integrally extended to form a second shielding portion that is spaced apart from the fourth elastic contact arm in the transverse direction.

[0008] Furthermore, the shell includes a first insulating shell and a second insulating shell matched with the first insulating shell, the first insulating shell is provided with the first docking groove, the second insulating shell is provided with the second docking groove, and the third elastic contact arm and the fourth elastic contact arm extend into the second docking groove.

[0009] Furthermore, the first insulating shell has a first mating surface, the second insulating shell has a second mating surface mating with the first mating surface, the first insulating block is entirely accommodated in the first insulating shell without protruding out of the first mating surface, and the first mating surface and the second mating surface have mutually matching positioning columns and positioning holes.

[0010] Further, the electrical connector includes a second terminal module opposite to the first terminal module in the transverse direction and a second insulating block injection molded on the second terminal module, the second terminal module includes a plurality of second grounding terminals and a plurality of second signal terminal pairs arranged in the longitudinal direction, the second grounding terminal includes a fifth elastic contact arm extending out of the first side of the second insulating block, the second signal terminal pair includes a second main body portion fixed to the second insulating block and a sixth elastic contact arm extending out of the second side of the second insulating block from one end of the second main body portion, the fifth elastic contact arm of the second grounding terminal and the sixth elastic contact arm of the second signal terminal pair are alternately arranged in the longitudinal direction, a plurality of the fifth elastic contact arms are integrally connected to a second substrate extending in the longitudinal direction, the second substrate is located on the outside of the second main body portion of the second signal terminal pair in the transverse direction, the second substrate is integrally extended to form a third shielding portion arranged on the outside of the sixth elastic contact arm in the transverse direction, the first substrate is located on the outside of the first main body portion, the first shielding portion is located on the outside of the second elastic contact arm, the first insulating block is assembled with the second insulating block and is loaded into the housing, the first and second elastic contact arms and the fifth and sixth elastic contact arms are located on both sides of the transverse direction of the first docking groove.

[0011] Furthermore, the first substrate is injection molded on the first insulating block, the first insulating block has an outer side surface abutting against the inner wall of the shell and a first recess recessed from the outer side surface to expose the outer surface of the first substrate, and the second substrate is injection molded on the second insulating block, the second insulating block has an outer side surface abutting against the inner wall of the shell and a second recess recessed from the outer side surface to expose the outer surface of the second substrate.

[0012] Further, the electrical connector includes a second terminal module opposite to the first terminal module in the transverse direction and a second insulating block injection molded on the second terminal module, the second terminal module includes a plurality of second grounding terminals and a plurality of second signal terminal pairs arranged in the longitudinal direction, the second grounding terminal includes a fifth elastic contact arm and a seventh elastic contact arm respectively extending from opposite sides of the second insulating block, the second signal terminal pair includes a second main body portion fixed to the second insulating block and a sixth elastic contact arm and an eighth elastic contact arm respectively extending from opposite ends of the second main body portion from opposite sides of the second insulating block, the fifth elastic contact arm and the sixth elastic contact arm are alternately arranged in the longitudinal direction, the seventh elastic contact arm and the eighth elastic contact arm are alternately arranged in the longitudinal direction, a plurality of the fifth elastic contact arms and a plurality of the seventh elastic contact arms are respectively integrally connected to opposite sides of a second substrate extending in the longitudinal direction, the second substrate is located on the outer side of the second main body portion in the transverse direction, and the opposite sides of the second substrate are integrally extended to form a third shielding portion and a fourth shielding portion respectively located on the outer side of the sixth elastic contact arm and the eighth elastic contact arm in the transverse direction.

[0013] Further, the fifth elastic contact arm and the sixth elastic contact arm extend into the first docking groove and are located on both lateral sides of the first docking groove together with the first elastic contact arm and the second elastic contact arm, and the seventh elastic contact arm and the eighth elastic contact arm extend into the second docking groove and are located on both lateral sides of the second docking groove together with the third elastic contact arm and the fourth elastic contact arm.

[0014] Furthermore, the first shielding portion, the second shielding portion, the third shielding portion and the fourth shielding portion all include a vertical section and an inclined section extending obliquely from the vertical section for guiding the sections to be installed into the housing.

[0015] Compared with the prior art, several grounding terminals in the electrical connector of the utility model are integrally connected through a substrate to share a common ground, and the substrate is extended to form a shielding portion covering the elastic contact arm of the signal terminal, so that the electrical connector has better high-frequency performance.

Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional diagram of the electrical connector of the utility model.

[0017] Figure 2 for Figure 1 Another perspective of the stereogram.

[0018] Figure 3 It is a three-dimensional exploded view of the electric connector of the utility model.

[0019] Figure 4 yes Figure 3 Another perspective exploded view.

[0020] Figure 5 yes Figure 3 Further exploded view.

[0021] Figure 6 yes Figure 5 Another perspective exploded view.

[0022] Figure 7 It is a three-dimensional exploded view of the electric connector of the utility model without the shell.

[0023] Figure 8 yes Figure 1 Section view along line AA.

[0024] Fig. 9 yes Figure 1 Section view along line BB. [Specific implementation method]

[0025] See also Figure 1-9 As shown, the electrical connector 100 of the utility model is a high-speed and high-frequency electrical connector for transmitting high-speed signals, which has a first docking groove 501 located at one end and a second docking groove 502 located at the other end, and the first docking groove 501 and the second docking groove 502 are used for docking connectors (not shown) or circuit boards (not shown) to be plugged in.

[0026] The electrical connector 100 includes a first terminal module 1, a first insulating block 2 for holding the first terminal module 1, a second terminal module 3, a second insulating block 4 for holding the second terminal module 3, and a housing 5. The housing 5 includes a first insulating housing 51 and a second insulating housing 52 matched with the first insulating housing 51, the first insulating housing 51 is penetrated front to back at one end to form the first docking groove 501 and the first mounting groove 503 is formed at the other end, and the second insulating housing 52 is penetrated front to back at one end to form the second docking groove 502 and the second mounting groove 504 is formed at the other end.

[0027] The first terminal module 1 is injection molded on the first insulating block 2. The first terminal module 1 includes a plurality of first grounding terminals 101 and a plurality of first signal terminal pairs 102 arranged in the longitudinal direction. The first grounding terminals 101 and the first signal terminal pairs 102 are alternately arranged in the longitudinal direction. The first grounding terminal 101 includes a first elastic contact arm 1011 extending out of a first side of the first insulating block 2. The first signal terminal pair 102 includes a first main body 1021 fixed to the first insulating block 2 and a second elastic contact arm 1022 extending out of the first side of the first insulating block 2 from one end of the first main body 1021. The first elastic contact arm 1011 of the first grounding terminal 101 and the second elastic contact arm 1022 of the first signal terminal pair 102 are alternately arranged in the longitudinal direction. The first elastic contact arms 1011 of the first grounding terminals 101 are integrally connected to a first substrate 6 extending in the longitudinal direction. The first substrate 6 is located on one side of the first main body 1021 of the first signal terminal pair 102 in a lateral direction perpendicular to the longitudinal direction. The first substrate 6 is further integrally extended to form a plurality of first shielding portions 61. The first shielding portions 61 are spaced apart from the second elastic contact arms 1022 of the first signal terminal pair 102 in the lateral direction to cover the second elastic contact arms 1022.

[0028] The first grounding terminal 101 further includes a third elastic contact arm 1012 extending out of the second side of the first insulating block 2, and the first signal terminal pair 102 further includes a fourth elastic contact arm 1023 extending out of the second side of the first insulating block 2 from the other end of the first main body 1021. Similarly, the third elastic contact arm 1012 of the first grounding terminal 101 and the fourth elastic contact arm 1023 of the first signal terminal pair 102 are alternately arranged in the longitudinal direction, and a plurality of the third elastic contact arms 1012 are integrally connected to the first substrate 6, and the first substrate 6 is further extended to form a plurality of second shielding portions 62 spaced apart from the fourth elastic contact arms 1023 of the first signal terminal pair 102 in the transverse direction. The first elastic contact arm 1011 and the second elastic contact arm 1022 extend into the first docking groove 501, and the third elastic contact arm 1012 and the fourth elastic contact arm 1023 extend into the second docking groove 502.

[0029] The second terminal module 3 is injection molded on the second insulating block 4. The second terminal module 3 is opposite to the first terminal module 1 in the transverse direction. The second terminal module 3 includes a plurality of second grounding terminals 301 and a plurality of second signal terminal pairs 302 arranged in the longitudinal direction. The second grounding terminals 301 and the second signal terminal pairs 302 are alternately arranged in the longitudinal direction. The second grounding terminal 301 includes a fifth elastic contact arm 3011 extending out of the first side of the second insulating block 4. The second signal terminal pair 302 includes a second main body 3021 fixed to the second insulating block 4 and a sixth elastic contact arm 3022 extending out of the first side of the second insulating block 4 from one end of the second main body 3021. The fifth elastic contact arm 3011 of the second grounding terminal 301 and the sixth elastic contact arm 3022 of the second signal terminal pair 302 are alternately arranged in the longitudinal direction. The fifth elastic contact arms 3011 of the plurality of second grounding terminals 301 are integrally connected to a second substrate 7 extending in the longitudinal direction, and the second substrate 7 is located on one side of the second main body portion 3021 of the second signal terminal pair 302 in a lateral direction perpendicular to the longitudinal direction, and the second substrate 7 is further integrally extended to form a plurality of third shielding portions 71, and the plurality of third shielding portions 71 are spaced apart from the sixth elastic contact arms 3022 of the second signal terminal pair 302 in the lateral direction to form a cover for the sixth elastic contact arms 3022.

[0030] The second grounding terminal 301 further includes a seventh elastic contact arm 3012 extending out of the second side of the second insulating block 4, and the second signal terminal pair 302 further includes an eighth elastic contact arm 3023 extending out of the second side of the second insulating block 4 from the other end of the second main body 3021. Similarly, the seventh elastic contact arm 3012 of the second grounding terminal 301 and the eighth elastic contact arm 3023 of the second signal terminal pair 202 are alternately arranged in the longitudinal direction, and a plurality of the seventh elastic contact arms 3012 are integrally connected to the second substrate 7, and the second substrate 7 is further extended to form a plurality of fourth shielding portions 72 spaced apart from a plurality of the eighth elastic contact arms 3023 of the second signal terminal pair 302 in the transverse direction. The fifth elastic contact arm 3011 and the sixth elastic contact arm 3022 extend into the first docking groove 501 to be opposite to the first elastic contact arm 1011 and the second elastic contact arm 1022 and are located on the lateral sides of the first docking groove 501, and the seventh elastic contact arm 3012 and the eighth elastic contact arm 3023 extend into the second docking groove 502 to be opposite to the third elastic contact arm 1012 and the fourth elastic contact arm 1023 and are located on the lateral sides of the second docking groove 502.

[0031] In the present invention, the first substrate 6 is located on the laterally outer side of the first main body 1021, the first shielding portion 61 is arranged on the laterally outer side of the second elastic contact arm 1022, the second shielding portion 62 is arranged on the laterally outer side of the first elastic contact arm 1023, the second substrate 7 is located on the laterally outer side of the second main body 3021, the third shielding portion 71 is arranged on the laterally outer side of the sixth elastic contact arm 3022, and the fourth shielding portion 72 is arranged on the laterally outer side of the eighth elastic contact arm 3023. The first shielding portion 61, the second shielding portion 62, the third shielding portion 71 and the fourth shielding portion 72 shield the first signal terminal pair 102 and the second signal terminal pair 202 to reduce signal interference of external signals on the electrical connector 100. The first substrate 6 is injection molded on the first insulating block 2. The first insulating block 2 has an outer side surface 21 that is attached to the inner wall of the housing 5 and a mating surface 22 that is matched with the second insulating block 4. The outer side surface 21 is recessed to form a first recess 211. The outer surface 60 of the first substrate 6 is exposed to the first recess 211. The second substrate 7 is injection molded on the second insulating block 4. The second insulating block 4 has an outer side surface 41 that is attached to the inner wall of the housing 5 and a mating surface 42 that is matched with the mating surface 22 of the first insulating block 2. The outer side surface 41 is recessed to form a second recess 411. The outer surface 70 of the second substrate 7 is exposed to the second recess 411. The space formed between the first recess 211 and the second recess 411 and the inner wall of the housing 5 is used to adjust the electrical performance of the electrical connector 100.

[0032] The first insulating block 2 and the second insulating block 4 are assembled into the housing 5. Specifically, the first insulating housing 51 has a first mating surface 511, and the second insulating housing 52 has a second mating surface 521 that is mated with the first mating surface 511. The first insulating block 2 is assembled into the first insulating housing 51 as a whole after being assembled with the mating surface 41 of the second insulating block 4 through the mating surface 21. After being assembled, the first insulating block 2 and the second insulating block 4 do not protrude from the first mating surface 511 of the first insulating housing 51. The first mating surface 511 of the first insulating housing 51 protrudes to form a positioning column 5111, and the second mating surface 521 of the second insulating housing 52 is recessed to form a positioning hole 5211 that is mated with the positioning column 5111. The first shielding portion 61 includes a vertical section 611 extending from the first insulating block 2 and an inclined section 612 extending from the vertical section 611. The third shielding portion 71 includes a vertical section 711 extending from the second insulating block 4 and an inclined section 712 extending from the vertical section 711. The inclined section 612 and the inclined section 712 are used to guide the first shielding portion 61 and the third shielding portion 71 to be installed into the first insulating shell 51. Similarly, the second shielding portion 62 includes a vertical section 621 and an inclined section 622. The fourth shielding portion 72 includes a vertical section 721 and an inclined section 722. The inclined section 622 and the inclined section 722 are used to guide the second shielding portion 62 and the fourth shielding portion 72 to be installed into the second insulating shell 52.

[0033] The above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, any simple equivalent changes and modifications made according to the claims of the present invention and the contents of the present invention specification should still fall within the scope of the present invention patent.

Claims

1. An electrical connector, comprising a housing, a first terminal module, and a first insulating block for fixing the first terminal module to the housing, wherein the first terminal module comprises a plurality of first grounding terminals and a plurality of first signal terminal pairs arranged in a longitudinal direction, wherein the first grounding terminal comprises a first elastic contact arm extending out of a first side of the first insulating block, and the first signal terminal pair comprises a first main body portion fixed to the first insulating block and a second elastic contact arm extending out of a first side of the first insulating block from one end of the first main body portion, wherein the first elastic contact arm of the first grounding terminal and the second elastic contact arm of the first signal terminal pair are alternately arranged in a longitudinal direction, characterized in that: The first elastic contact arms are integrally connected to a first substrate extending in the longitudinal direction. The first substrate is located on one side of the first main body in a transverse direction perpendicular to the longitudinal direction. The first substrate is integrally extended to form a first shielding portion spaced apart from the second elastic contact arms in the transverse direction.

2. The electrical connector according to claim 1, wherein: The first terminal module is injection molded on the first insulating block, the housing is provided with a first docking groove, the first insulating block is received in the housing, and the first elastic contact arm and the second elastic contact arm extend into the first docking groove.

3. The electrical connector according to claim 2, wherein: The first grounding terminal further includes a third elastic contact arm extending out of the second side of the first insulating block, and the first signal terminal pair further includes a fourth elastic contact arm extending out of the second side of the first insulating block from the other end of the first main body, the third elastic contact arm of the first grounding terminal and the fourth elastic contact arm of the first signal terminal pair are alternately arranged in the longitudinal direction, a plurality of the third elastic contact arms are integrally connected to the first substrate, and the first substrate is integrally extended to form a second shielding portion arranged in a transverse direction with a spacing from the fourth elastic contact arm.

4. The electrical connector according to claim 3, wherein: The shell includes a first insulating shell and a second insulating shell matched with the first insulating shell, the first insulating shell is provided with the first docking groove, the second insulating shell is provided with the second docking groove, and the third elastic contact arm and the fourth elastic contact arm extend into the second docking groove.

5. The electrical connector according to claim 4, wherein: The first insulating shell has a first mating surface, the second insulating shell has a second mating surface mating with the first mating surface, the first insulating block is entirely accommodated in the first insulating shell without protruding out of the first mating surface, and the first mating surface and the second mating surface have mutually matching positioning columns and positioning holes.

6. The electrical connector according to claim 2, wherein: The electrical connector includes a second terminal module opposite to the first terminal module in the transverse direction and a second insulating block injection-molded on the second terminal module, the second terminal module includes a plurality of second grounding terminals and a plurality of second signal terminal pairs arranged in the longitudinal direction, the second grounding terminal includes a fifth elastic contact arm extending out of a first side of the second insulating block, the second signal terminal pair includes a second main body portion fixed to the second insulating block and a sixth elastic contact arm extending out of a second side of the second insulating block from one end of the second main body portion, the fifth elastic contact arm of the second grounding terminal and the sixth elastic contact arm of the second signal terminal pair are alternately arranged in the longitudinal direction, the plurality of the fifth elastic contact arms are integrally connected to a second substrate extending in the longitudinal direction, the second substrate is located on the outside of the second main body portion of the second signal terminal pair in the transverse direction, the second substrate is integrally extended to form a third shielding portion arranged on the outside of the sixth elastic contact arm in the transverse direction, the first substrate is located on the outside of the first main body portion, the first shielding portion is located on the outside of the second elastic contact arm, the first insulating block is assembled with the second insulating block and is installed in the housing, the first and second elastic contact arms and the fifth and sixth elastic contact arms are located on both sides of the transverse direction of the first docking groove.

7. The electrical connector according to claim 6, wherein: The first substrate is injection molded on the first insulating block, the first insulating block has an outer side surface abutting against the inner wall of the shell and a first recess recessed from the outer side surface to expose the outer surface of the first substrate, and the second substrate is injection molded on the second insulating block, the second insulating block has an outer side surface abutting against the inner wall of the shell and a second recess recessed from the outer side surface to expose the outer surface of the second substrate.

8. The electrical connector according to claim 4, wherein: The electrical connector includes a second terminal module opposite to the first terminal module in the transverse direction and a second insulating block injection-molded on the second terminal module, the second terminal module includes a plurality of second grounding terminals and a plurality of second signal terminal pairs arranged in the longitudinal direction, the second grounding terminal includes a fifth elastic contact arm and a seventh elastic contact arm respectively extending out of opposite sides of the second insulating block, the second signal terminal pair includes a second main body portion fixed to the second insulating block and a sixth elastic contact arm and an eighth elastic contact arm respectively extending out of opposite sides of the second insulating block from opposite ends of the second main body portion, the fifth elastic contact arm and the sixth elastic contact arm are alternately arranged in the longitudinal direction, the seventh elastic contact arm and the eighth elastic contact arm are alternately arranged in the longitudinal direction, a plurality of the fifth elastic contact arms and a plurality of the seventh elastic contact arms are respectively integrally connected to opposite sides of a second substrate extending in the longitudinal direction, the second substrate is located outside the second main body portion in the transverse direction, and opposite sides of the second substrate are integrally extended to form a third shielding portion and a fourth shielding portion respectively located outside the sixth elastic contact arm and the eighth elastic contact arm in the transverse direction.

9. The electrical connector according to claim 8, wherein: The fifth elastic contact arm and the sixth elastic contact arm extend into the first docking groove and are located on both lateral sides of the first docking groove together with the first elastic contact arm and the second elastic contact arm. The seventh elastic contact arm and the eighth elastic contact arm extend into the second docking groove and are located on both lateral sides of the second docking groove together with the third elastic contact arm and the fourth elastic contact arm.

10. The electrical connector according to claim 8, wherein: The first shielding portion, the second shielding portion, the third shielding portion and the fourth shielding portion all include a vertical section and an inclined section obliquely extending from the vertical section for guiding and installing into the shell.

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